阅读说明：本技术 一种带锁止功能的安全防拆智能印章 (Take intelligent seal of tearing open is prevented to safety of locking function ) 是由 陆晓伟 于 2020-05-13 设计创作，主要内容包括：本发明提供一种带锁止功能的安全防拆智能印章,包括阀座,阀座内设有通过流道连通的滑腔及储油腔,流道上设有与其中一螺钉同轴的阀腔,阀腔内滑配有阀芯,螺钉的端部与阀芯端部接触并使阀芯处于阻断位置,阀腔的端部设有第一弹性部件,滑腔内滑配有滑塞,阀座上设有第二弹性部件,滑塞上设有触发部,阀座上设有容触发部触发并对所述导杆进行锁止的印章锁止机构；当螺栓遭拆解时,能实现纯机械触发,能在无电的状态下进行触发并对印章实现锁止,稳定性高,可靠性好。(The invention provides a safe anti-dismantling intelligent stamp with a locking function, which comprises a valve seat, wherein a sliding cavity and an oil storage cavity which are communicated through a flow passage are arranged in the valve seat, a valve cavity coaxial with one of screws is arranged on the flow passage, a valve core is arranged in the valve cavity in a sliding manner, the end part of the screw is in contact with the end part of the valve core and enables the valve core to be in a blocking position, a first elastic part is arranged at the end part of the valve cavity, a sliding plug is arranged in the sliding cavity in a sliding manner, a second elastic part is arranged on the valve seat, a triggering part is arranged on the sliding plug, and a stamp locking mechanism which; when the bolt is disassembled, the trigger can be purely mechanically triggered, the trigger can be triggered in a state without electricity, and the seal can be locked, so that the stability is high, and the reliability is good.)

1. The utility model provides a take safe intelligent seal of preventing tearing open of locking function which characterized in that includes:

the device comprises a shell, a bearing, a connecting piece and a connecting piece, wherein the shell is used as a mounting carrier for mounting other components, and a cavity with an opening at the lower end is formed in the shell;

the functional component is arranged in the cavity and comprises a valve seat 2 fixed on the inner wall of the shell through a screw and a seal support arranged at the lower end of the valve seat 2 in a sliding manner through a guide rod 35;

a sliding cavity 203 and a flow channel communicated with the sliding cavity 203 are arranged in the valve seat 2, an oil storage cavity 203 is arranged at the end part of the flow channel, a valve cavity coaxial with one of the screws is arranged on the flow channel, a valve core 45 capable of blocking the flow channel is slidably arranged in the valve cavity, the end part of the screw is in contact with the end part of the valve core and enables the valve core to be at a blocking position, a first elastic part 46 enabling the valve core to have a movement trend towards the direction of the screw is arranged at the end part of the valve cavity, a sliding plug 51 is slidably arranged in the sliding cavity, a second elastic part 54 enabling the sliding plug to move inwards and extrude fluid in the sliding cavity is arranged on the valve seat 2, a sliding plug rod 52 is arranged on the sliding plug, a triggering part 53 is arranged at the end part of the sliding plug rod, and a seal locking mechanism which is used for triggering the triggering part and locking the guide rod;

when the screw is disassembled, the first elastic component 46 pushes the valve core to move outwards and separate from the blocking position, so that the valve cavity is communicated with the oil storage cavity and the sliding cavity at the same time, the fluid pressure in the sliding cavity is reduced, and the second elastic component 54 pushes the sliding plug to move inwards and drives the trigger part to trigger the seal locking mechanism to lock the guide rod.

2. The secure tamper-proof intelligent stamp with locking function according to claim 1, wherein: seal locking mechanism is in including the sliding fit the spring bolt 62 of disk seat upper end, the slip direction perpendicular to of spring bolt the axis direction of guide arm, be equipped with third elastomeric element 64 on the disk seat, third elastomeric element makes the spring bolt has the motion trend that trigger portion direction is close to, the afterbody of spring bolt is equipped with first oblique leading face 611, trigger portion be equipped with first oblique leading face corresponds, and can promote the spring bolt makes its head card go into the second oblique leading face 531 of annular spacing groove 351 of guide arm lateral wall.

3. The secure tamper-proof intelligent stamp with locking function according to claim 1, wherein: horizontally arranged mounting holes are uniformly distributed in the circumferential direction of the side wall of the valve seat, one mounting hole is coaxial with the valve cavity and communicated with the valve cavity, a screw 41 penetrates through the shell and then is connected with the mounting hole to fix the valve seat, a sliding cavity 203 is formed in the top surface of the valve seat 2, and the axis of the sliding cavity is parallel to the axis of the guide rod; the two ends of the valve cavity are respectively provided with a first cavity and a second cavity, the first cavity is communicated with the lower end of the sliding cavity through a first flow passage 204, and the second cavity is communicated with an oil storage cavity arranged at the lower end of the valve body through a second flow passage 205.

4. The secure tamper-proof intelligent stamp with locking function according to claim 1, wherein: an air outlet is formed in the side wall of the oil storage cavity, a one-way valve is arranged on the air outlet, and oil absorption cotton 2021 is arranged in the oil storage cavity.

5. The secure tamper-proof intelligent stamp with locking function according to claim 1, wherein: the side wall of the valve body 2 is provided with a groove, the side wall of the groove is provided with a third flow channel 2031 communicated with the sliding cavity, the first flow channel 204 is communicated with the third flow channel, the inlet end of the third flow channel is provided with a plug, and the plug is positioned in the groove.

6. The secure tamper-proof intelligent stamp with locking function according to claim 1, wherein: the casing includes interior casing 12 and the laminating is in the outer shell body of inner shell body, interior casing is made by the metal, the screw passes behind the interior casing with the valve body links, the head of screw with the contact of shell body inner wall.

7. The secure tamper-proof intelligent stamp with locking function according to claim 1, wherein: a limiting sleeve 43 is connected in the mounting hole communicated with the valve cavity through threads, a hole 431 with a square or hexagonal cross section penetrates through the two ends of the limiting sleeve 43 to form a screwing part, the outer end part of the limit sleeve is provided with a first limit surface which is contacted with the end part of the screw and is used for axially limiting the screw, a limit pin 44 is arranged between the limit sleeve and the valve core, the limit pin 44 is provided with a first limit part sleeved in the hole 431 and a second limit part connected with the first limit part, the diameter of the second position-limiting part is larger than the diameter of the hole 431, the end of the first position-limiting part is contacted with the end of the screw, the end part of the second limiting part is contacted with the end part of the valve core, and the end part of the inner end of the limiting sleeve is provided with a second limiting surface which is used for being contacted with the second limiting part and used for limiting the axial direction of the limiting pin.

8. The secure tamper-proof intelligent stamp with locking function according to claim 1, wherein: the valve seat locking mechanism comprises a guide hole 210 arranged on the side wall of the valve seat, the axis of the guide hole is vertical and intersected with the axis of the valve seat, a top column 71 is slidably arranged in the guide hole, the head of the top column is a spherical surface, an arc-shaped positioning groove for accommodating the head of the top column is formed in the inner wall of the shell, the depth of the positioning groove is smaller than the radius of the top column, a fourth elastic component 73 enabling the top column to have an outward movement trend is arranged in the guide hole, and an annular groove 711 is formed in the side wall of the top column; the top surface of disk seat has been seted up the latchbolt hole 220, the latchbolt hole with guide hole intercommunication and mutually perpendicular, sliding fit has locking lever 741 in the set bar, the locking lever upwards extends to outside the latchbolt hole and be connected with a connecting rod 74, the connecting rod is fixed trigger in the portion, work as trigger when the position is spacing in higher level, the locking lever is located the ring channel upper end, work as trigger when the portion moves down drive the locking lever insert the ring channel makes the unable axial displacement of fore-set.

9. The secure tamper-proof intelligent stamp with locking function according to claim 1, wherein: the inner wall circumference equipartition of shell body has the bar recess, the length direction of bar recess is on a parallel with the axis of shell body, the outer wall of interior casing be equipped with the bar recess is to and can block in the protruding 131 of bar recess, the bellied lateral wall of bar is equipped with the counter sink that is used for mounting screw.

10. A locking method of a safety tamper-proof intelligent stamp with a locking function according to any one of claims 1 to 9, comprising the steps of:

s1, when the screw contacting with the valve core 45 is disassembled, the valve core is pushed to move outwards under the action of the elastic force of the first elastic component until the second limiting part on the limiting pin 44 contacts with the end part of the inner end of the limiting sleeve, and at the moment, the valve core moves to the outer limit;

s2, in the process that the valve core moves to the limit position, the first cavity and the second cavity in the valve cavity are communicated, so that the sliding cavity 203, the third flow channel 2031, the first flow channel 204, the valve cavity, the second flow channel 205 and the oil storage cavity 202 are communicated, the volume of oil in the valve seat 2 is smaller than the sum of the volumes of the flow channels and the cavities, the internal oil pressure is reduced, the lower end of the sliding plug loses the oil pressure, the sliding plug is pushed to move downwards under the action of the elastic force of the third elastic component, and the oil in the sliding cavity is extruded into the oil storage cavity until the sliding plug moves to the lower limit position;

s3, the sliding plug moves to drive the trigger part at the upper end to move downwards:

s31, in the downward movement process of the trigger part, the second inclined guide surface 531 on the trigger part 53 pushes the first inclined guide surface 611 at the end part of the bolt, so that the bolt overcomes the direction of the guide rod of the third elastic component to move, and the bolt is inserted into the annular limiting groove 351 on the side wall of the guide rod, so that the guide rod cannot move axially, and the locking of the guide rod is completed;

s32, simultaneously, the trigger part drives the connecting rod connected with the trigger part to move downwards so as to drive the lock rod 741 on the connecting rod to move downwards, the straight lock rod is inserted into the annular groove 711 in the side wall of the top column 71, and at the moment, the top column cannot move axially, so that the valve seat is locked;

and S33, driving the contact rod connected with the trigger part to move by the trigger part, so that the contact at the upper end of the trigger part triggers the micro switch, thereby forming an alarm signal to the seal processor, triggering local or remote alarm by the processor according to the setting, and simultaneously prompting that the seal triggers the locking state locally or remotely.

Technical Field

The invention relates to a seal, in particular to a safe anti-dismantling intelligent seal with a locking function.

Background

The existing seal, especially the official seal, is the necessary office equipment that the unit or the legal person approve or prove the corresponding document validity, and the seal stamped on the document expresses the validity and authenticity of the document. Once the seal is lost, the seal is maliciously utilized by illegal personnel, and the serious consequence of directly or indirectly damaging the benefits of related personnel and institutions is caused, so that special personnel in a company generally manage the seal and are responsible for the use, preservation and maintenance of the seal.

However, there are some special cases objectively, for example, some enterprises and public institutions borrow official seals, and seal managers cannot seal the seals at a predetermined place with seal persons; for example, the seal manager needs to use the seal when going on a business trip or asking for a leave, and the seal manager cannot ensure that the seal is used or is used maliciously after taking the seal, so that the intelligent seal appears on the market.

The traditional intelligent seal is authorized to be used through passwords or fingerprints, when the seal is lost or illegally used by theft, the seal cannot be stamped after the seal is violently disassembled, and therefore unnecessary troubles are generated for enterprises.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to solve the technical problem of providing a safe anti-dismantling intelligent seal with a locking function, which can automatically lock the seal and a valve seat inside the seal through a mechanical structure when the seal is dismantled.

(2) Technical scheme for solving problems

The invention provides a safe anti-dismantling intelligent stamp with a locking function, which comprises:

the device comprises a shell, a bearing, a connecting piece and a connecting piece, wherein the shell is used as a mounting carrier for mounting other components, and a cavity with an opening at the lower end is formed in the shell;

the functional component is arranged in the cavity and comprises a valve seat 2 fixed on the inner wall of the shell through a screw and a seal support arranged at the lower end of the valve seat 2 in a sliding manner through a guide rod 35;

a sliding cavity 203 and a flow passage communicated with the sliding cavity 203 are arranged in the valve seat 2, an oil storage cavity 203 is arranged at the end part of the flow passage, the flow passage is provided with a valve cavity coaxial with one of the screws, a valve core 45 capable of blocking the flow passage is arranged in the valve cavity in a sliding way, the end of the screw contacts with the end of the valve core and makes the valve core in the blocking position, the end of the valve cavity is provided with a first elastic component 46 which makes the valve core have the movement trend towards the screw direction, a sliding plug 51 is arranged in the sliding cavity in a sliding way, a second elastic part 54 which enables the sliding plug to move inwards and extrude the fluid in the sliding cavity is arranged on the valve seat 2, a sliding plug rod 52 is arranged on the sliding plug, a triggering part 53 is arranged at the end part of the sliding plug rod, and a seal locking mechanism which is used for triggering the triggering part and locking the guide rod is arranged on the valve seat;

when the screw is disassembled, the first elastic component 46 pushes the valve core to move outwards and separate from the blocking position, so that the valve cavity is communicated with the oil storage cavity and the sliding cavity at the same time, the pressure of fluid in the sliding cavity is reduced, and the second elastic component 54 pushes the sliding plug to move inwards and drives the trigger part to trigger the seal locking mechanism to lock the guide rod.

Further, seal locking mechanism is including sliding fit the spring bolt 62 of disk seat upper end, the slip direction perpendicular to of spring bolt the axis direction of guide arm, be equipped with third elastomeric element 64 on the disk seat, third elastomeric element makes the spring bolt direction the motion trend that trigger portion direction is close to, the afterbody of spring bolt is equipped with first oblique guide surface 611, trigger portion be equipped with first oblique guide surface corresponds, and can promote the spring bolt and make its head card go into the second oblique guide surface 531 of annular spacing groove 351 of guide arm lateral wall.

Furthermore, horizontally arranged mounting holes are uniformly distributed in the circumferential direction of the side wall of the valve seat, one of the mounting holes is coaxial with the valve cavity and is communicated with the valve cavity, a screw 41 penetrates through the shell and is connected with the mounting hole to fix the valve seat, a sliding cavity 203 is formed in the top surface of the valve seat 2, and the axis of the sliding cavity is parallel to the axis of the guide rod; the two ends of the valve cavity are respectively provided with a first cavity and a second cavity, the first cavity is communicated with the lower end of the sliding cavity through a first flow passage 204, and the second cavity is communicated with an oil storage cavity arranged at the lower end of the valve body through a second flow passage 205.

Further, an exhaust port is formed in the side wall of the oil storage cavity, a one-way valve is arranged on the exhaust port, and oil absorption cotton 2021 is arranged in the oil storage cavity.

Further, a groove is formed in the side wall of the valve body 2, a third flow channel 2031 communicated with the sliding cavity is formed in the side wall of the groove, the first flow channel 204 is communicated with the third flow channel, a plug is arranged at the inlet end of the third flow channel, and the plug is located in the groove.

Further, the casing includes interior casing 12 and the laminating is in the outer shell of interior casing outside, interior casing is made by the metal, the screw pass interior casing back with the valve body links, the head of screw with outer shell inner wall contact.

Furthermore, a limit sleeve 43 is connected in the mounting hole communicated with the valve cavity through threads, a hole 431 with a square or hexagonal cross section is penetrated through both ends of the position-limiting sleeve 43 to form a tightening part, the outer end part of the limit sleeve is provided with a first limit surface which is contacted with the end part of the screw and is used for axially limiting the screw, a limiting pin 44 is arranged between the limiting sleeve and the valve core, the limiting pin 44 is provided with a first limiting part sleeved in the hole 431 and a second limiting part connected with the first limiting part, the diameter of the second limiting part is larger than the bore diameter of the hole 431, the end part of the first limiting part is contacted with the end part of the screw, the end part of the second limiting part is contacted with the end part of the valve core, and the end part of the inner end of the limiting sleeve is provided with a second limiting surface which is contacted with the second limiting part and used for limiting the axial direction of the limiting pin.

The valve seat locking mechanism comprises a guide hole 210 formed in the side wall of the valve seat, the axis of the guide hole is perpendicular to and intersected with the axis of the valve seat, a top column 71 is slidably matched in the guide hole, the head of the top column is a spherical surface, an arc-shaped positioning groove for accommodating the head of the top column is formed in the inner wall of the shell, the depth of the positioning groove is smaller than the radius of the top column, a fourth elastic component 73 enabling the top column to have an outward movement trend is arranged in the guide hole, and an annular groove 711 is formed in the side wall of the top column; the top surface of disk seat has been seted up the hasp hole 220, the hasp hole with guide hole intercommunication and mutually perpendicular, the internal sliding fit of set bar has locking lever 741, the locking lever upwards extends to outside the hasp hole and be connected with a connecting rod 74, the connecting rod is fixed trigger the portion in, work as trigger the position when higher level is spacing, the locking lever is located the ring channel upper end, work as trigger the portion drives when moving down the locking lever inserts the ring channel makes the unable axial displacement of fore-set.

Further, the inner wall circumference equipartition of shell body has the bar recess, the length direction of bar recess is on a parallel with the axis of shell body, the outer wall of interior casing be equipped with the bar recess is to and can block into the protruding 131 of bar recess, the bellied lateral wall of bar is equipped with the counter sink that is used for mounting screw.

Further, a touch bar 531 is vertically arranged on the trigger part, a contact 5311 protruding outwards is arranged at the end of the touch bar, and a microswitch 532 is arranged in the shell and is positioned on the motion path of the contact.

The invention also provides a locking method of the intelligent seal, which comprises the following steps:

s1, when the screw contacting with the valve core 45 is disassembled, the valve core is pushed to move outwards under the action of the elastic force of the first elastic component until the second limiting part on the limiting pin 44 contacts with the end part of the inner end of the limiting sleeve, and at the moment, the valve core moves to the outer limit;

s2, in the process that the valve core moves to the limit position, the first cavity and the second cavity in the valve cavity are communicated, so that the sliding cavity 203, the third flow channel 2031, the first flow channel 204, the valve cavity, the second flow channel 205 and the oil storage cavity 202 are communicated, the volume of oil in the valve seat 2 is smaller than the volume of each flow channel and cavity, the internal oil pressure is reduced, the lower end of the sliding plug loses the oil pressure, the sliding plug is pushed to move downwards under the action of the elastic force of the third elastic component, and the oil in the sliding cavity is extruded into the oil storage cavity until the sliding plug moves to the lower limit position;

s3, the sliding plug moves to drive the trigger part at the upper end to move downwards:

s31, in the process that the trigger part moves downwards, the second inclined guide surface 531 on the trigger part 53 pushes the first inclined guide surface 611 at the end part of the lock tongue, so that the lock tongue moves in the direction of overcoming the guide rod of the third elastic component, and is inserted into the annular limiting groove 351 on the side wall of the guide rod, the guide rod cannot move axially, and the locking of the guide rod is completed;

s32, simultaneously, the trigger part drives the connecting rod connected with the trigger part to move downwards, so that the lock rod 741 on the connecting rod is driven to move downwards, the straight lock rod is inserted into the annular groove 711 in the side wall of the top column 71, at the moment, the top column cannot move axially, and the valve seat is locked;

and S33, the trigger part drives the contact rod connected with the trigger part to move, so that the contact at the upper end of the trigger part triggers the micro-motion switch, an alarm signal is formed to the seal processor, the processor triggers local or remote alarm according to the setting, and simultaneously the processor prompts that the seal triggers the locking state locally or remotely.

(3) Advantageous effects

According to the safe anti-dismantling intelligent seal with the locking function, a dynamic balance is formed by matching the bolt, the valve core, the sliding plug and the elastic component, when the bolt is dismantled, pure mechanical triggering can be realized, triggering can be performed in a state without electricity, and the seal is locked, so that the stability is high, and the reliability is good; the double-layer shell structure improves the strength of the whole structure, provides a support surface for the bolt, avoids the bolt from loosening, improves the whole stability and improves the attractiveness; the shell is provided with the strip-shaped bulges and the strip-shaped grooves, so that the quick positioning and installation can be realized, and the structural strength can be improved; the limiting pin and the limiting sleeve are arranged, so that the assembly precision is improved, the phenomenon that the limiting pin and the limiting sleeve are stressed to pop out of the mounting hole to cause injury to a human body when triggered can be avoided, and the safety is improved; the exhaust port is arranged, so that the hydraulic oil can flow rapidly, and the corresponding speed is improved; the oil absorption cotton is arranged for absorbing oil, so that hydraulic oil is prevented from splashing out of the exhaust port; the top column is arranged, so that accurate axial positioning is performed during installation of the valve seat, and the valve seat can be fixed on the shell by matching with the lock rod, so that abnormal disassembly is avoided; the valve seat is provided with the lock rod, and the trigger part triggers and fixes the guide rod, so that the seal body is locked, abnormal seal is avoided, and the safety is improved; the annular limiting groove of the guide rod and the lock tongue are provided with the chamfers, so that the lock tongue can be normally inserted to realize locking when the guide rod is not completely reset, the movement reliability is improved, and the condition that the guide rod cannot be normally triggered due to incomplete resetting is avoided; the vertical surfaces are arranged on the trigger part and the contact block and are contacted with each other after being completely triggered, so that incomplete locking caused by reverse action of the spring bolt due to the elastic force is avoided, and the running stability is further improved; the end part of the screw is additionally provided with a rubber gasket to prevent the valve core from generating micro sliding and pressure relief due to the looseness of the screw; meanwhile, a touch rod and a microswitch are arranged, and an alarm signal is synchronously triggered in an electrified state, so that local or remote alarm notification is realized, and the use safety is further improved.

Drawings

FIG. 1 is a schematic structural diagram of a safe tamper-proof intelligent seal with a locking function according to the present invention;

FIG. 2 is a cross-sectional view of the security tamper-proof intelligent seal with locking function of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion C of FIG. 3;

FIG. 5 is another structural diagram of the valve core of the safety tamper-proof intelligent seal with locking function according to the present invention;

FIG. 6 is a schematic structural diagram of a stop collar of the safe anti-tamper intelligent seal with a locking function of the invention;

FIG. 7 is an enlarged view of portion B of FIG. 2;

FIG. 8 is a schematic view of another state of the sliding plug of the anti-tamper intelligent seal with locking function according to the present invention;

FIG. 9 is a transverse sectional view of the security tamper-proof intelligent stamp with locking function of the present invention;

FIG. 10 is a schematic structural diagram of a seal locking mechanism of the safe tamper-proof intelligent seal with a locking function according to the present invention;

FIG. 11 is an installation illustration of the microswitch of the safety tamper-proof intelligent stamp with locking function of the present invention;

FIG. 12 is a schematic structural diagram of a valve seat locking mechanism of the safe tamper-proof intelligent stamp with a locking function according to the present invention;

fig. 13 is another angle structure diagram of the valve seat locking mechanism of the safety anti-tamper intelligent stamp with the locking function of the invention.

In the figure: 1-shell, 11-outer shell, 12-inner shell, 131-strip-shaped bulge, 2-valve seat, 210-guide hole, 22-end cover, 220-bolt hole, 201-installation cavity, 202-oil storage cavity, 2021-oil absorption cotton, 203-sliding cavity, 2031-third flow channel, 2041-first cavity, 204-first flow channel, 205-second flow channel, 32-seal body, 33-push-pull electromagnet, 34-support plate, 35-guide rod, 351-annular limiting groove, 41-screw, 42-gasket, 43-limiting sleeve, 430-external thread, 431-hole, 44-limiting pin, 45-valve core, 46-first elastic component, 51-sliding plug, 52-sliding plug rod, 53-trigger part, 531-feeler lever, 5311-contact, 532-second vertical surface, 535-feeler lever, 5351-contact, 536-microswitch, 54-second elastic component, 611-first inclined guide surface, 612-first vertical surface, 63-fixing sleeve, 711-annular groove, 73-fourth elastic component, 74-connecting rod, 74-contact lever,

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Referring to fig. 1 to 13, the invention provides a safe anti-dismantling intelligent stamp with a locking function, which can realize locking through a mechanical mode when being dismantled, and has high safety and good stability, the stamp comprises a shell 1 and a functional component arranged in the shell, a cavity with an open lower end is formed in the shell, the functional component is arranged in the cavity, the functional component comprises a valve seat 2 fixed on the inner wall of the shell through a screw and a stamp support arranged at the lower end of the valve seat 2 in a sliding way through a guide rod 35, a stamp body 32 is fixed on the stamp support, the stamp face of the stamp body is positioned outside the stamp support, the up-and-down movement is realized through the guide rod, an installation cavity 201 is arranged at the lower end of the valve seat, a support plate 34 is fixed at the open end of the installation cavity, a push-pull electromagnet 33 is arranged in the installation cavity, the push-pull electromagnet, the output end of the stamping device is connected with the stamp support and used for driving the stamp support to move up and down, so that stamping is completed.

Referring to fig. 2-5 and 7-8, a sliding chamber 203 and a flow passage communicating with the sliding chamber 203 are provided in the valve seat 2, an oil storage chamber 203 is provided at an end of the flow passage, meanwhile, a valve cavity coaxial with one of the screws is arranged on the flow channel, a valve core 45 capable of blocking the flow channel is arranged in the valve cavity in a sliding mode, the end portion of the screw is in contact with the end portion of the valve core and enables the valve core to be in a blocking position, a first elastic component 46 enabling the valve core to have a movement trend close to the direction of the screw is arranged at the end portion of the valve cavity, a sliding plug 51 is slidably fitted in the sliding chamber, and a second elastic member 54 for moving the sliding plug inward and pressing the fluid in the sliding chamber, which in this embodiment is hydraulic oil, a sliding plug rod 52 is arranged on the sliding plug, a triggering part 53 is arranged at the end part of the sliding plug rod, and a seal locking mechanism which is used for triggering the triggering part and locking the guide rod is arranged on the valve seat; when the screw is removed, the first elastic component 46 pushes the valve core to move outwards and separate from the blocking position, so that the valve cavity is communicated with the oil storage cavity and the sliding cavity at the same time, the volume of the internal oil cavity is increased, the fluid pressure in the sliding cavity is reduced, the sliding plug is out of balance, and the second elastic component 54 pushes the sliding plug to move inwards and drives the trigger part to trigger the seal locking mechanism to lock the guide rod.

The structure of each component is explained in detail below;

referring to fig. 2 and 9, the cross section of the casing is circular, that is, the whole casing is cylindrical, and includes an outer casing 11 having an inner casing 12 outside the inner casing, and the inner wall of the outer casing is attached to the outer wall of the inner casing, and in order to improve the structural strength of the inner casing, the inner casing is made of metal, which may be one of stainless steel, titanium alloy, aluminum alloy, or aluminum-magnesium alloy, so as to improve the whole strength of the inner casing; the inner wall circumference equipartition at the shell body has the bar recess, this bar recess's length direction is on a parallel with the axis of shell body, simultaneously including the outer wall of casing be equipped with the bar recess to and can block into the protruding 131 of bar recess, be equipped with the counter sink that is used for mounting screw or bolt at the bellied lateral wall of bar, the quick location equipment of the convenient interior outer casing of this structure, the counter sink is seted up on this bar is protruding simultaneously, the interior casing wall thickness has been improved under the condition that does not increase the volume, thereby improve the joint strength of screw or bolt, the inner wall is equipped with annular positioning groove at the inner casing, this annular positioning groove cross-section is the arc, its axial positioning when being used for the disk seat equipment reaches as disk seat locking mechanism's partly.

Referring to fig. 2-8, the valve seat is a cylinder, the outer diameter of the valve seat is the same as the inner diameter of the inner housing, specifically, horizontally disposed mounting holes are uniformly distributed on the side wall of the valve seat along the circumference, one of the mounting holes is coaxial with and communicated with the valve cavity disposed in the valve seat, a screw 41 or an inner hexagon bolt penetrates through the inner housing and is in threaded connection with the mounting hole to fix the valve seat, a sliding cavity 203 is disposed on the top surface of the valve seat 2, in this embodiment, the mounting hole is disposed in the center of the valve seat, the axis of the sliding cavity is parallel to the axis of the guide rod, a sliding plug 51 is slidably disposed in the sliding cavity, the outer wall of the sliding plug is attached to the inner wall of the sliding cavity, at least two sealing rings are disposed on the side wall of the sliding plug 51 to improve the sealing performance, a sliding plug rod 52 is disposed at the upper end of the sliding plug, the diameter of the sliding plug rod is smaller than the diameter of the sliding plug, the sliding plug, the sliding plug rod passes through the end cover and then extends out of the valve seat, a second elastic part 54 is arranged between the end cover 22 and the sliding plug, in the embodiment, the second elastic part is a spring and is sleeved on the sliding plug rod positioned below the end cover, the upper end of the second elastic part is contacted with the lower surface of the end cover, the lower end of the second elastic part is contacted with the upper surface of the sliding plug, the second elastic part is a whole body which is close to a fully compressed body and has larger spring force, so that the sliding plug has a downward movement trend, namely a triggering part 53 which extrudes hydraulic oil in the sliding cavity is generated and is used for triggering one or more locking or alarming devices, and the locking or alarming devices are explained additionally; a first cavity 2041 and a second cavity are respectively arranged at two ends of the valve cavity, namely the valve cavity forms a cavity structure with two large ends and a small middle part; a groove is formed in the side wall of the valve body 2, a third flow channel 2031 is formed in the side wall of the groove, the third flow channel 2031 is horizontally arranged and is communicated with the lower end of the side wall of the sliding cavity, the first cavity 2041 is communicated with the third flow channel through the first flow channel 204, namely the first cavity is communicated with the sliding cavity, the third flow channel is used for injecting oil, a plug is arranged at the inlet end of the third flow channel, the plug is positioned in the groove, and the extending height of the plug is smaller than the depth of the groove; the lower end of the valve seat is provided with an oil storage cavity 202 which is located right below the second cavity, the upper end of the side wall of the oil storage cavity is provided with an exhaust port for accelerating gas discharge and using hydraulic oil to flow quickly, a one-way valve is fixed on the exhaust port, in order to reduce the installation space and reduce the cost, the one-way valve is a plastic one-way valve or a rubber one-way valve, the structure is simple, the size is small and the cost is low, the second cavity is communicated with the oil storage cavity through a second flow channel 205, oil absorption cotton 2021 is arranged in the oil storage cavity, the oil absorption cotton can quickly absorb the hydraulic oil entering from the second flow channel and store the hydraulic oil, and the hydraulic oil which enters quickly is prevented from splashing, so that the hydraulic oil is splashed out.

Referring to fig. 2-5, the valve core 45 is horizontally slidably fitted in the valve cavity, an annular groove is disposed on a side wall of the valve core, the annular groove is close to one end of the first elastic component 46, a screw (hexagon socket head cap screw) is fixed in a mounting hole communicated with the sliding cavity, a head of the screw is located in a countersunk hole, and the head of the screw contacts with an inner wall of the outer shell, so that the screw is prevented from being loosened by vibration to cause deviation of the valve core and cause false triggering, and the outer shell cannot be mounted because the axial height of the head of the screw is too large, the countersunk depth of the countersunk hole is the same as the height of the head of the screw, but the head of the countersunk hole is just contacted with the inner wall of the outer shell after the screw is mounted due to the influence of processing precision and screw precision, so that the countersunk hole has a certain margin when being processed, that the depth of the countersunk, meanwhile, in order to ensure that the bolt head and the outer shell are in contact with each other, a gasket 42 is arranged in the counter bore and is located between the end part of the bolt head and the inner wall of the outer shell.

In order to ensure the axial position of the valve core in the valve cavity, in the embodiment, the end part of the bolt is not in direct contact with the end part of the valve core, but a limit pin 44 is arranged between the two, the end part of the outer end (on one side of the first elastic part in principle) of the limit pin is in contact with the end part of the bolt, the end part of the inner end (close to the first elastic part) of the limit pin is in contact with the end part of the valve core, when the bolt is in a screwing position, the valve cavity is positioned at the innermost end, the annular groove on the valve core is positioned in the first cavity, at least two sealing rings are arranged on the valve core, one sealing ring is positioned at the outermost end of the valve core, and the other sealing ring is positioned between the first; in order to avoid the damage to the human body caused by the valve core and the limiting pin being ejected from the valve cavity under pressure after the bolt is disassembled, a limiting sleeve 43 is arranged between the mounting hole and the valve cavity, the outer wall of the limiting sleeve 43 is provided with external threads 430 which are connected in the mounting hole through threads, holes 431 with a cross section of a regular quadrangle or a regular hexagon penetrate through two ends of the limiting sleeve 43 to form screwing parts which are used for mounting the limiting sleeve in the screw holes, and the holes are used as the action space of the limiting pin, concretely, the limiting pin 44 is provided with a rod body which is sleeved in the holes 431, the end part of the inner end of the rod body is provided with a limiting part, the diameter of the limiting part is larger than that of the holes, after the mounting, the end part of the rod body is contacted with the end part of the bolt, the end part of the limiting part is contacted with the end part of the valve core, the end part of the inner end part of the, the first limiting part is in contact with the stepped surface at the outer end of the second limiting part and is used for axially limiting the limiting pin, so that personnel injury caused by punching the limiting pin or the valve core out of the mounting hole is avoided, and the safety is improved; after the bolt is disassembled, the outer end of the limiting pin loses supporting force, and the valve core and the limiting pin are pushed to move outwards by the elastic force of the first elastic part until the second limiting part is contacted with the limiting sleeve to enable the second limiting part to move to the outer limit position, at the moment, the annular groove on the valve core is positioned between the first cavity and the second cavity, and at the moment, the first cavity is communicated with the second cavity.

Referring to fig. 7-8 and 10, the stamp locking mechanism is fixed to a fixing sleeve 63 at the upper end of the valve seat, a lock tongue 62 is horizontally arranged on the fixing sleeve in a sliding way, the sliding direction of the lock tongue is vertical to the axis of the guide rod 35, a third elastic part 64 is arranged in the fixing sleeve, the third elastic component makes the lock tongue move towards the direction close to the trigger part, the tail part (the side close to the trigger part) of the lock tongue is provided with a contact block 61, a first inclined guide surface 611 inclined upward is provided on the contact block, while a second inclined guide surface 531 inclined downward is provided on the trigger portion, the second inclined guide surface corresponds to the first inclined guide surface and has the same inclination, the lock tongue can be pushed to move towards one end of the guide rod when the second inclined guide surface is triggered, an annular limiting groove 351 is formed in the side wall of the guide rod, and when the trigger is triggered, the head of the lock tongue is inserted into the annular limiting groove, so that the guide rod cannot move up and down, and the guide rod is locked and fixed; in order to avoid that the position of the guide rod is not reset in place to cause that the spring bolt cannot be inserted into the annular limiting groove, chamfers are arranged at the upper end and the lower end of the annular limiting groove, and meanwhile chamfers are also arranged at the head of the spring bolt. Because the spring bolt receives the elasticity of the third elastic component, and the contact of inclined plane between trigger part and the touch block after triggering completely, in order to avoid the spring bolt atress bounce-back and influence the locking effect, be equipped with first vertical plane 612 at the tip of first inclined guide surface 611, be equipped with second vertical plane 532 at the tip of second inclined guide surface, the slip direction of spring bolt is perpendicular to this first vertical plane or second vertical plane, when trigger part moves to the lower extreme position, and after triggering completely, first vertical plane and second vertical plane contact each other and laminate, therefore, it forms a spacing face, make the spring bolt unable atress reverse motion, thereby improved the stability and the reliability of locking, above-mentioned structure triggers the locking of guide bar to fix, make the seal unable to realize the seal and be located the casing, prevent illegal use.

Referring to fig. 12-13, in order to further improve the safety, a valve seat locking mechanism is further provided in this embodiment, the valve seat locking mechanism includes at least three guide holes 210 provided in the side wall of the valve seat, the guide holes are uniformly distributed in the circumferential direction, the axes of the guide holes are perpendicular to and intersect with the axis of the valve seat, a support pillar 71 is slidably fitted in the guide holes, the head of the support pillar is a spherical surface, an annular positioning groove into which the head of the support pillar is fitted is provided on the inner wall of the housing, the depth of the annular positioning groove is smaller than the radius of the support pillar, a fourth elastic component 73 for making the support pillar move outwards is provided in the guide hole, and an annular groove 711 is provided in the side wall of the; when the bolt is normally installed, the sliding seat is axially clamped into the inner shell, and the axial positioning is realized through the head of the top column and the annular positioning groove on the inner wall of the shell, so that the installation precision and efficiency of the bolt are improved; the top surface of disk seat has been seted up the latch hole 220, latch hole and guide hole intercommunication and mutually perpendicular, in this embodiment, the width of latch hole (be on a parallel with the fore-set axis direction) is the same with the width of ring channel, sliding fit has locking lever 741 in the set bar, the locking lever upwards extends to the latch hole outside and is connected with a connecting rod 74, the connecting rod is fixed on triggering the portion, when triggering the position and being located the upper limit position, the locking lever is located the ring channel upper end, drive the locking lever and insert in the ring channel and make the fore-set unable axial displacement when triggering the portion moves down, thereby realize that the locking of disk seat is fixed, it can avoid the abnormal disassembly of disk seat, improve seal security.

The structure is a pure mechanical structure, can realize locking of parts under the condition of no electricity, prevents abnormal disassembly, and is safe and reliable.

Referring to fig. 11, in this embodiment, a micro switch 536 is further provided, and when the trigger portion triggers the locking mechanism, an alarm signal is sent out, and the micro switch can normally operate in an electrified state, specifically, a touch rod 535 is vertically provided on the trigger portion, a contact 5351 protruding outward is provided at an end of the touch rod, the micro switch is vertically provided and located on a motion path of the contact, when the trigger portion moves down, the contact starts to contact with a contact piece on the micro switch and triggers the micro switch, and after the trigger, the micro switch gives an alarm signal to a control circuit in the stamp, and the alarm signal can trigger a remote or local alarm, and simultaneously tells the local or remote that the stamp triggers an abnormal detachable locking state.

The invention also provides a locking method of the intelligent seal, which comprises the following steps:

s1, when the screw contacting the valve core 45 is disassembled, the valve core is pushed to move outwards under the action of the elastic force of the first elastic component until the second limiting part on the limiting pin 44 contacts with the end part of the inner end of the limiting sleeve, at the moment, the valve core moves to the outer limit, and the limiting pin is limited by the limiting sleeve, so the limiting pin and the valve core cannot be punched outwards under the action of the elastic force, and the safety is good;

s2, in the process of limiting the valve core, the valve core is positioned between the first cavity and the second cavity, the first cavity and the second cavity in the valve cavity are communicated, thereby communicating the sliding chamber 203, the third flow passage 2031, the first flow passage 204, the valve chamber, the second flow passage 205, and the oil storage chamber 202, and the volume of the oil in the valve seat 2 is smaller than the sum of the volumes of the flow passages and the chamber, so that the internal oil pressure is reduced, the lower end of the sliding plug loses the oil pressure, loses the force balance, the sliding plug is pushed to move downwards under the action of the elastic force of the third elastic component, oil in the sliding cavity is extruded and then sequentially flows through the third flow channel 2031, the first flow channel 204, the first cavity, the second cavity and the second flow channel to the oil storage cavity, and air in each flow channel and the cavity is extruded out of the exhaust port after hydraulic oil enters, so that the oil can rapidly and smoothly flow along each flow channel until the sliding plug moves to the lower limit position;

s3, the sliding plug moves to drive the trigger part at the upper end of the sliding plug to move downwards until the sliding plug moves to the lower limit position:

s31, in the process that the trigger part moves downwards, the second inclined guide surface 531 on the trigger part 53 pushes the first inclined guide surface 611 at the end part of the lock tongue, so that the lock tongue moves in the direction of overcoming the guide rod of the third elastic component, and is inserted into the annular limiting groove 351 on the side wall of the guide rod, the guide rod cannot move axially, and the locking of the guide rod is completed; when the trigger part moves to the lower limit position, the first vertical surface on the lock tongue is contacted with the second vertical surface on the trigger part, so that the lock tongue cannot rebound under the action of the elastic part, and the locking reliability is improved;

s32, simultaneously, the trigger part drives the connecting rod connected with the trigger part to move downwards, so that the lock rod 741 on the connecting rod is driven to move downwards, the straight lock rod is inserted into the annular groove 711 in the side wall of the top column 71, at the moment, the top column cannot move axially, and the valve seat is locked;

and S33, the trigger part drives the contact rod connected with the trigger part to move, so that the contact at the upper end of the trigger part triggers the micro-motion switch, an alarm signal is formed to the seal processor, the processor triggers local or remote alarm according to the setting, and simultaneously the processor prompts that the seal triggers the locking state locally or remotely.

The steps S31, S32, and S33 are performed simultaneously, not sequentially.

Meanwhile, the triggering part can trigger an ejection device with a tool bit for destroying the seal body, so that the seal is incomplete, the complete seal surface is lost, and violent disassembly cannot be carried out.

According to the safe anti-dismantling intelligent seal with the locking function, a dynamic balance is formed by matching the bolt, the valve core, the sliding plug and the elastic component, when the bolt is dismantled, pure mechanical triggering can be realized, triggering can be performed in a state without electricity, and the seal is locked, so that the stability is high, and the reliability is good; the double-layer shell structure improves the strength of the whole structure, provides a support surface for the bolt, avoids the bolt from loosening, improves the whole stability and improves the attractiveness; the shell is provided with the strip-shaped bulges and the strip-shaped grooves, so that the quick positioning and installation can be realized, and the structural strength can be improved; the limiting pin and the limiting sleeve are arranged, so that the assembly precision is improved, the phenomenon that the limiting pin and the limiting sleeve are stressed to pop out of the mounting hole to cause injury to a human body when triggered can be avoided, and the safety is improved; the exhaust port is arranged, so that the hydraulic oil can flow rapidly, and the corresponding speed is improved; the oil absorption cotton is arranged for absorbing oil, so that hydraulic oil is prevented from splashing out of the exhaust port; the top column is arranged, so that accurate axial positioning is performed during installation of the valve seat, and the valve seat can be fixed on the shell by matching with the lock rod, so that abnormal disassembly is avoided; the valve seat is provided with the lock rod, and the trigger part triggers and fixes the guide rod, so that the seal body is locked, abnormal seal is avoided, and the safety is improved; the annular limiting groove of the guide rod and the lock tongue are provided with the chamfers, so that the lock tongue can be normally inserted to realize locking when the guide rod is not completely reset, the movement reliability is improved, and the condition that the guide rod cannot be normally triggered due to incomplete resetting is avoided; the vertical surfaces are arranged on the trigger part and the contact block and are contacted with each other after being completely triggered, so that incomplete locking caused by reverse action of the spring bolt due to the elastic force is avoided, and the running stability is further improved; the end part of the screw is additionally provided with a rubber gasket to prevent the valve core from generating micro sliding and pressure relief due to the looseness of the screw; meanwhile, a touch rod and a microswitch are arranged, and an alarm signal is synchronously triggered in an electrified state, so that local or remote alarm notification is realized, and the use safety is further improved.

It should be noted that, in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any combination of the two. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate medium. Also, a first feature "on," "above," and "over" a second feature may be directly or diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the invention. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.