阅读说明：本技术 一种防盗防损坏闸阀 (Anti-theft damage-proof gate valve ) 是由 何春焕 于国峰 冯玉柱 米红娟 王卫东 崔雪青 杨峰晓 于 2020-07-04 设计创作，主要内容包括：本发明公开了一种防盗防损坏闸阀,包括阀体,所述阀体上设置有阀盖,所述阀盖上设置有通孔,所述通孔内设置有阀杆,所述阀杆的下部连接有闸板,所述阀杆的顶端设置有手轮,还包括相互配合的锁芯组件和钥匙,锁芯组件包括锁芯连接件、锁芯体和复位弹簧,所述阀杆包括上阀杆和下阀杆,所述锁芯组件设置于所述上阀杆和下阀杆之间,所述钥匙通过锁芯组件使所述上阀杆和下阀杆连接或分开。当锁芯体连接上下阀杆时,阀门可正常启闭,当锁芯体完全位于下阀杆时,上阀杆转动,下阀杆不动,阀门空转,可防止阀门非预期操作,且可避免蛮力操作导致阀门损坏；锁芯组件和钥匙的设置,使阀门具有防盗功能,可保护管线介质不丢失。(The invention discloses an anti-theft damage-prevention gate valve which comprises a valve body, wherein a valve cover is arranged on the valve body, a through hole is formed in the valve cover, a valve rod is arranged in the through hole, a flashboard is connected to the lower portion of the valve rod, a hand wheel is arranged at the top end of the valve rod, the gate valve further comprises a lock cylinder assembly and a key, the lock cylinder assembly and the key are matched with each other, the lock cylinder assembly comprises a lock cylinder connecting piece, a lock cylinder body and a reset spring, the valve rod comprises an upper valve rod and a lower valve rod, the lock cylinder assembly is arranged between the upper valve rod and the lower valve rod, and the key enables the. When the lock cylinder body is connected with the upper valve rod and the lower valve rod, the valve can be normally opened and closed, when the lock cylinder body is completely positioned on the lower valve rod, the upper valve rod rotates, the lower valve rod does not move, and the valve idles, so that the unexpected operation of the valve can be prevented, and the damage of the valve caused by brute force operation can be avoided; the arrangement of the lock core component and the key ensures that the valve has an anti-theft function and can protect the pipeline medium from being lost.)

1. The utility model provides a bad gate valve of theftproof loss prevention, includes valve body (1), be provided with valve gap (2) on valve body (1), be provided with the through-hole on valve gap (2), be provided with the valve rod in the through-hole, the sub-unit connection of valve rod has flashboard (3), the top of valve rod is provided with hand wheel (4), its characterized in that still includes lock core subassembly and key (5) of mutually supporting, the valve rod includes valve rod (6) and lower valve rod (7), lock core subassembly set up in go up between valve rod (6) and lower valve rod (7), key (5) make through lock core subassembly go up valve rod (6) and lower valve rod (7) and connect or part.

2. The anti-theft damage-prevention gate valve according to claim 1, characterized in that the lock cylinder assembly comprises a lock cylinder connecting piece (8), a lock cylinder body (9) and a return spring (10) which are sequentially arranged from top to bottom, the lock cylinder connecting piece (8) is in threaded connection with the upper valve rod (6), the return spring (10) is arranged on the lower valve rod (7), the upper end of the lock cylinder body (9) is abutted against the lower end of the lock cylinder connecting piece (8), and the lower end of the lock cylinder body (9) is abutted against the return spring (10).

3. The anti-theft damage-prevention gate valve according to claim 2, characterized in that the upper portion of the upper valve rod (6) is provided with a screw hole (11) with internal threads, the bottom of the upper valve rod (6) is provided with an upper clamping hole (12) matched with the lock cylinder body (9), the screw hole (11) is communicated with the upper clamping hole (12), the lock cylinder connecting piece (8) is provided with external threads matched with the internal threads of the upper valve rod (6), the lock cylinder connecting piece (8) is in threaded connection with the upper valve rod (6), the top of the lower valve rod (7) is provided with a lower clamping hole (13) matched with the lock cylinder body (9), the upper clamping hole (12) corresponds to the lower clamping hole (13), and the lock cylinder body (9) is vertically slidably arranged in the upper clamping hole (12) and the lower clamping hole (13).

4. The anti-theft damage-prevention gate valve according to claim 3, wherein a guide rod (14) is arranged at the lower part of the lock cylinder body (9), a guide hole (15) matched with the guide rod (14) is formed in the bottom wall of the lower clamping hole (13), the guide rod (14) is slidably inserted into the guide hole (15), the return spring (10) is sleeved on the guide rod (14), the upper end of the return spring (10) is abutted against the lock cylinder body (9), and the lower end of the return spring (10) is abutted against the bottom wall of the guide hole (15).

5. The anti-theft damage-prevention gate valve according to claim 2, wherein the key (5) comprises a key head (51) and a key rod (52) which are integrally connected, a positioning concave hole (16) is formed in the bottom of the key rod (52), a positioning boss (17) matched with the positioning concave hole (16) is arranged at the top of the lock cylinder connecting piece (8), and the key (5) and the lock cylinder connecting piece (8) are in fit clamping connection through the positioning concave hole (16) and the positioning boss (17).

6. An anti-theft and damage-proof gate valve according to claim 1, characterized in that the outer side wall of the lower valve rod (7) is provided with an outer trapezoidal thread, the gate plate (3) is connected with the lower valve rod (7) through a valve rod nut (18), the inner surface of the valve rod nut (18) is provided with an inner trapezoidal thread matched with the outer trapezoidal thread, the valve rod nut (18) is rotatably arranged on the lower valve rod (7), and the gate plate (3) is fixedly arranged on the valve rod nut (18).

7. An anti-theft and damage-proof gate valve according to claim 6, characterized in that guide grooves (19) are arranged on both sides of the gate plate (3), guide rails (20) are arranged on the valve body (1) corresponding to the guide grooves (19), and the gate plate (3) is slidably connected with the guide rails (20) through the guide grooves (19).

8. The anti-theft damage-prevention gate valve according to claim 1, characterized in that a shaft shoulder (21) is arranged on the upper portion of the lower valve rod (7), an annular clamping table is arranged in a through hole of the valve cover (2), the shaft shoulder (21) is clamped on the annular clamping table, an annular boss (22) is arranged at the bottom of the upper valve rod (6), a gland (23) is arranged in the through hole, and the upper valve rod (6) and the lower valve rod (7) are fixed in the through hole of the valve cover (2) on the gland (23).

9. The anti-theft damage-prevention gate valve according to claim 8, characterized in that a pressing sleeve (24) is arranged in the through hole of the valve cover (2), the pressing sleeve (24) is sleeved outside the lower valve rod (7), the upper end of the pressing sleeve (24) is abutted against the pressing cover (23), and the lower end of the pressing sleeve (24) is abutted against the shaft shoulder (21).

Technical Field

The invention relates to the technical field of valves, in particular to an anti-theft and damage-proof gate valve.

Background

Most of valves in the current market do not have an anti-theft function, all people can operate the valves, and misoperation or medium stealing is easy to happen; the valve with locking device usually uses the mechanical lock body, need the specialized key to open, this method is relatively safe and reliable, but when the installation quantity of the valve with lock is more, and the key is kept by the special person, because the specialized key that each valve corresponds can't be general, it is inconvenient that the keeper carries all specialized keys, and need to check the specialized key while operating, have brought very big inconvenience for opening and closing of the valve; the gate valve with the magnetic locking structure has the advantages that the opening and closing structure of the gate valve is provided with the protection device, the gate valve is not easy to damage and steal, the use safety performance is improved, the service life is prolonged, a special key is not needed for opening the gate valve, the magnet in the gate valve is easy to demagnetize after the gate valve is used for a long time or subjected to high temperature, the gate valve cannot push away the small iron block after magnetic repulsion, and the gate valve is easy to damage if the gate valve is forcibly opened and closed.

Disclosure of Invention

The invention aims to provide an anti-theft and damage-proof gate valve aiming at the defects of the prior art.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the utility model provides a bad gate valve of theftproof loss prevention, includes the valve body, be provided with the valve gap on the valve body, be provided with the through-hole on the valve gap, be provided with the valve rod in the through-hole, the sub-unit connection of valve rod has the flashboard, the top of valve rod is provided with the hand wheel, still includes mutually supporting lock core subassembly and key, the valve rod includes valve rod and lower valve rod, lock core subassembly set up in go up between valve rod and the lower valve rod, the key makes through lock core subassembly go up the valve rod and connect or part with lower valve rod.

Further, the lock core subassembly includes by last lock core connecting piece, lock core body and the reset spring that sets gradually under to, the lock core connecting piece with go up valve rod threaded connection, reset spring set up in on the lower valve rod, lock core body upper end and lock core connecting piece lower extreme butt, lock core body lower extreme with reset spring butt.

Furthermore, the upper portion of the upper valve rod is provided with a screw hole with an internal thread, the bottom of the upper valve rod is provided with an upper clamping hole matched with the lock cylinder body, the screw hole is communicated with the upper clamping hole, the lock cylinder connecting piece is provided with an external thread matched with the internal thread of the upper valve rod, the lock cylinder connecting piece is in threaded connection with the inside of the upper valve rod, the top of the lower valve rod is provided with a lower clamping hole matched with the lock cylinder body, the upper clamping hole corresponds to the lower clamping hole, and the lock cylinder body is arranged in the upper clamping hole and the lower clamping hole in a vertically sliding mode.

Furthermore, the lock core body lower part is provided with the guide bar, set up on the diapire in lower card hole with the guide bar looks adaptation's guiding hole, the guide bar slides and inserts and locates in the guiding hole, reset spring cover is located on the guide bar, reset spring's upper end with the lock core body butt, reset spring's lower extreme with the guiding hole diapire butt.

Further, the key includes key head and key pole of body coupling, the bottom of key pole is provided with the location shrinkage pool, the top of lock core connecting piece be provided with the location boss of location shrinkage pool looks adaptation, the key with the lock core connecting piece is through crossing location shrinkage pool and location boss cooperation joint.

Further, be provided with outer trapezoidal screw thread on the lower valve rod lateral wall, the flashboard pass through valve-stem nut with the lower valve rod is connected, valve-stem nut internal surface be provided with the interior trapezoidal screw thread of outer trapezoidal screw thread looks adaptation, valve-stem nut rotate set up in on the lower valve rod, the flashboard fixed set up in on the valve-stem nut.

Further, the flashboard both sides are provided with the guide slot, on the valve body with the position that the guide slot corresponds is provided with the guide rail, the flashboard passes through guide slot and guide rail sliding connection.

Further, a shaft shoulder is arranged on the upper portion of the lower valve rod, an annular clamping table is arranged in the through hole of the valve cover, the shaft shoulder is clamped on the annular clamping table, an annular boss is arranged at the bottom of the upper valve rod, a gland is arranged in the through hole, and the upper valve rod and the lower valve rod are fixed in the through hole of the valve cover on the gland.

Furthermore, a pressing sleeve is arranged in the through hole of the valve cover, the pressing sleeve is sleeved outside the lower valve rod, the upper end of the pressing sleeve is abutted to the pressing cover, and the lower end of the pressing sleeve is abutted to the shaft shoulder.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

according to the invention, the lock core assembly is arranged between the upper valve rod and the lower valve rod, and the lock core assembly is connected with or disconnected from the upper valve rod and the lower valve rod through a key, when the lock core body is connected with the upper valve rod and the lower valve rod, the valve can be normally opened and closed, when the lock core body is completely positioned on the lower valve rod, the upper valve rod rotates, the lower valve rod does not move, the valve idles, the valve can be prevented from being operated unexpectedly, and the damage of the valve caused by brute force operation can be avoided; the arrangement of the lock core component and the key ensures that the valve has an anti-theft function and can protect pipeline media from being lost; the lock core assembly is positioned in the valve, so that the external damage is effectively avoided, and the service life of the lock core assembly is prolonged; the key can be used universally among various products, so that the number of special keys can be reduced, the keeping cost is reduced, and the purchasing cost is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the upper valve stem configuration of the present invention;

FIG. 3 is a schematic view of the lower stem construction of the present invention;

FIG. 4 is a schematic view of a key structure according to the present invention;

FIG. 5 is a schematic view of a lock cylinder connector of the present invention;

FIG. 6 is a schematic structural view of a cylinder body according to the present invention;

FIG. 7 is a schematic view of the normal opening and closing state of the hand wheel in the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 7;

FIG. 9 is a schematic view of the handwheel idling and the valve in an anti-theft state according to the present invention;

fig. 10 is an enlarged view of a portion B in fig. 9.

In the figure: 1. a valve body; 2. a valve cover; 3. a shutter plate; 4. a hand wheel; 5. a key; 51. a key head; 52. a key lever; 6. an upper valve stem; 7. a lower valve stem; 8. a lock cylinder connector; 9. a lock cylinder body; 10. a return spring; 11. a screw hole; 12. an upper clamping hole; 13. a lower clamping hole; 14. a guide bar; 15. a guide hole; 16. positioning concave holes; 17. positioning the boss; 18. a valve stem nut; 19. a guide groove; 20. a guide rail; 21. a shaft shoulder; 22. an annular boss; 23. a gland; 24. and (5) pressing the sleeve.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-10, the specific embodiment of the anti-theft damage-prevention gate valve of the present invention includes a valve body 1, a through inlet/outlet flow passage is provided at two sides of the valve body 1, a valve cover 2 is provided on the valve body 1, the valve cover 2 is fixed on the valve body 1 by screws, a through hole is provided at the top of the valve cover 2, a valve rod is provided in the through hole, a gate plate 3 is connected after the lower part of the valve rod is inserted into the valve body 1, a hand wheel 4 is provided at the top end of the valve rod, the gate valve rod includes an upper valve rod 6 and a lower valve rod 7, the lower end surface of the upper valve rod 6 is attached to the upper end surface of the lower valve rod 7, the lock core assembly is provided between the upper valve rod 6 and the lower valve rod 7, and the key 5 connects or separates the upper valve rod 6 and the lower valve.

Furthermore, the lock core assembly comprises a lock core connecting piece 8, a lock core body 9 and a reset spring 10 which are sequentially arranged from top to bottom, a screw hole 11 with internal threads is formed in the central axis of the upper part of the upper valve rod 6, an upper clamping hole 12 matched with the lock core body 9 is formed in the bottom of the upper valve rod 6, the screw hole 11 is communicated with the upper clamping hole 12 and penetrates through the whole upper valve rod 6, external threads matched with the internal threads of the upper valve rod 6 are formed in the lock core connecting piece 8, the lock core connecting piece 8 is connected in the upper valve rod 6 in a threaded manner, and the lower end of the lock core connecting piece 8 is abutted to the upper end of the lock core body 9; the top of the lower valve rod 7 is provided with a lower clamping hole 13 matched with the lock cylinder body 9, the upper clamping hole 12 corresponds to and is matched with the lower clamping hole 13, the lock cylinder body 9 is arranged in the upper clamping hole 12 and the lower clamping hole 13 in a vertically sliding mode under the action of the lock cylinder connecting piece 8 and the reset spring 10, the upper clamping hole 12 and the lower clamping hole 13 are strip-shaped flat holes and are matched with the shape and size of the lock cylinder body 9, the shapes of the upper clamping hole 12, the lower clamping hole 13 and the lock cylinder body 9 are not limited to the shapes, and the upper clamping hole 12, the lower clamping hole 13 and the lock cylinder body 9 can also be polygons such as a triangle and a quadrangle, when the lock cylinder body 9 is simultaneously positioned in the upper clamping hole 12 and the lower clamping hole 13, the lock cylinder body 9 is connected with the upper valve rod and the; the lower part of the lock core body 9 is provided with a guide rod 14, a guide hole 15 matched with the guide rod 14 is formed in the bottom wall of the lower clamping hole 13, the guide rod 14 is slidably inserted into the guide hole 15, the return spring 10 is sleeved on the guide rod 14, the upper end of the return spring 10 is abutted to the lock core body 9, and the lower end of the return spring 10 is abutted to the bottom wall of the guide hole 15.

Further, the key 5 comprises a key head 51 and a key rod 52 which are integrally connected, the key rod 52 can be movably inserted into the screw hole 11, a square positioning concave hole 16 is formed in the bottom of the key rod 52, a positioning boss 17 matched with the positioning concave hole 16 is arranged at the top of the lock cylinder connecting piece 8, and the key 5 and the lock cylinder connecting piece 8 are in matched clamping connection through the positioning concave hole 16 and the positioning boss 17; during operation, the hand wheel 4 is taken down, the key rod 52 is inserted into the screw hole 11, the positioning concave hole 16 and the positioning boss 17 are matched and clamped, the key head 51 is rotated, the lock cylinder connecting piece 8 is rotated to move upwards or downwards, the return spring 10 is matched, and meanwhile, the lock cylinder body 9 is driven to move upwards or downwards. The connection mode of the key 5 and the lock cylinder connecting piece 8 is not limited to this, a plurality of positioning bosses can be arranged at the lower end of the key rod, a positioning concave hole matched with the top of the lock cylinder connecting piece 8 is arranged at the top of the key rod, and during operation, the positioning bosses at the lower end of the key rod are inserted into the positioning concave holes to be matched and clamped.

Further, be provided with outer trapezoidal screw thread on the lower valve rod 7 lateral wall, flashboard 3 pass through valve-stem nut 18 with lower valve rod 7 is connected, 18 internal surfaces of valve-stem nut be provided with the interior trapezoidal screw thread of outer trapezoidal screw thread looks adaptation, valve-stem nut 18 rotate set up in on the lower valve rod 7, flashboard 3 fixed set up in on the valve-stem nut 18, the outer cladding of flashboard 3 has the rubber layer. The 3 both sides of flashboard are provided with guide slot 19, on the valve body 1 with the corresponding position of guide slot 19 is provided with guide rail 20, flashboard 3 passes through guide slot 19 and guide rail 20 sliding connection, and when the valve rod rotated, valve-stem nut 18 drove flashboard 3 and reciprocates along guide rail 20, opened or closed valve body 1's exit runner, and when closing the valve, the contact of flashboard lower part and valve body latus rectum bottom leaned on the rubber realization on the compression flashboard to seal.

Further, a shaft shoulder 21 is arranged on the upper portion of the lower valve rod 7, an annular clamping table is arranged in a through hole of the valve cover 2, the shaft shoulder 21 is connected to the annular clamping table in a clamped mode, a pressing sleeve 24 is arranged in the through hole of the valve cover 2, the pressing sleeve 24 is sleeved outside the lower valve rod 7, the lower end of the pressing sleeve 24 is abutted to the shaft shoulder 21, an annular boss 22 is arranged at the bottom of the upper valve rod 6, a pressing cover 23 is arranged in the through hole, the lower end of the pressing cover 23 is abutted to the annular boss 22 and the pressing sleeve 24, and the upper valve rod 6 and the lower valve rod 7 are fixed in the through hole of the valve cover 2 on the pressing cover 23, so that the upper valve rod 6 and the lower valve rod 7 can only rotate.

The working principle of the invention is as follows:

the lock cylinder connecting piece is rotated by a key to move downwards, the lock cylinder body is pushed to move downwards, when the lock cylinder body is separated from the upper valve rod and is positioned in the lower valve rod, the upper hand wheel is installed and operated, the upper valve rod rotates, the lower valve rod does not move, the valve idles, the valve can be prevented from being operated unexpectedly, and the valve can be prevented from being damaged due to brute force operation (as shown in figures 9 and 10); on the contrary, when the lock core connecting piece is rotated by a key to move upwards, the lock core body moves upwards under the action of the reset spring, the flat part above the lock core body enters the upper clamping hole of the upper valve rod, at the moment, the lock core body is simultaneously positioned in the upper clamping hole and the lower clamping hole to connect the upper valve rod and the lower valve rod, the upper hand wheel is installed and the hand wheel is operated, the upper valve rod rotates, the lower valve rod rotates simultaneously, and the valve can be opened and closed normally (as shown in figures 7 and 8).

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.