阅读说明：本技术 一种隧道防护门的锁紧检测装置及包含其的隧道防护门 (Locking detection device of tunnel protection door and tunnel protection door comprising same ) 是由 耿明 张俊岭 张�浩 光振雄 董云松 殷勤 罗存喜 赵强 俞辉 邱绍峰 周明翔 于 2021-09-18 设计创作，主要内容包括：本发明公开了一种隧道防护门的锁紧检测装置及包含其的隧道防护门,属于隧道防护门配套技术领域,其通过防护壳、导杆、弹簧组件和干簧管的组合设置,以及导杆上永磁铁的匹配装设,可以有效实现锁头锁定状态的及时反馈,进而判断隧道防护门是否锁定到位。本发明的隧道防护门的锁紧检测装置,其结构简单,设置、调整简便,能有效实现隧道防护门锁闭状态的检测,避免了隧道防护门在隧道运营过程中锁闭不到位的情况发生,保证了隧道防护门使用和隧道运营的安全性和稳定性,有效避免了隧道防护门的损坏,降低了隧道防护门的应用和维护成本,具有较好的应用前景和推广价值。(The invention discloses a locking detection device of a tunnel protection door and the tunnel protection door comprising the same, belonging to the technical field of tunnel protection door matching. The locking detection device for the tunnel protection door is simple in structure and convenient to set and adjust, can effectively detect the locking state of the tunnel protection door, avoids the situation that the tunnel protection door is not locked in place in the tunnel operation process, ensures the safety and stability of the use and the operation of the tunnel protection door, effectively avoids the damage of the tunnel protection door, reduces the application and maintenance cost of the tunnel protection door, and has better application prospect and popularization value.)

1. A locking detection device of a tunnel protection door comprises a mounting plate and is characterized by further comprising a protection shell, a guide rod, a spring assembly and a reed pipe;

the protective shell penetrates through the mounting plate and is fixed on the mounting plate, a containing hole is formed in the middle of the protective shell along the axial direction, and the guide rod, the spring assembly and the reed pipe are respectively contained in the containing hole;

the guide rod is in a stepped shaft form, one end of the guide rod is embedded into the containing hole, and the other end of the guide rod extends out of the end part of the containing hole and can reciprocate in the containing hole along the axial direction; an annular step is formed on the periphery of the middle part of the guide rod, and an annular bulge is formed on the inner wall surface of one end of the accommodating hole, so that the guide rod can be limited by matching the annular step with the annular bulge;

the spring assembly comprises a spring which is coaxially arranged with the guide rod; one end of the spring is matched with the end part of the protective shell, which is far away from the guide rod, and the other end of the spring is matched with the end part of the guide rod, and the guide rod can be tightly propped against the annular bulge when the extending end of the guide rod is not stressed;

the reed switch is coaxially fixed in the accommodating hole and is of an annular structure, and a through hole for the spring and/or the guide rod to pass through is formed in the middle of the reed switch; meanwhile, a permanent magnet is arranged on the guide rod corresponding to the reed switch, the permanent magnet can be driven to a position close to the reed switch by a lock head after the tunnel protection door is locked in place, and a switch in the reed switch is switched off under the action of a magnetic field of the permanent magnet.

2. The locking detection device of the tunnel protection door according to claim 1, wherein the spring assembly further comprises a connector, the connector is matched with the end of the accommodating hole deviating from the annular protrusion in a threaded manner, and one end of the spring deviating from the guide rod is matched with the end face of the connector.

3. The locking detection device of the tunnel protection door according to claim 1 or 2, wherein a mounting shaft is further provided corresponding to the mounting of the protection shell on the mounting plate;

the installation axle is the stepped shaft structure, and the through-hole has been seted up along the axial at its middle part for the coaxial of protecting crust passes and fixes, just the installation axle can pass the mounting panel at its one end after spacing with the step ladder to with gland nut locking on the mounting panel.

4. The locking detection device of the tunnel protection door according to claim 3, further comprising a locking head, wherein the locking head is rotatably connected to the periphery of one end of the mounting shaft, which is away from the guide rod, and a connecting through hole is formed in the middle of the locking head, which corresponds to the through hole of the mounting shaft, and is used for the protective shell to pass through; and an internal thread is arranged in the connecting through hole and is matched with the protective shell through a thread.

5. The locking detection device of the tunnel protection door according to claim 2, wherein a tapered hole is coaxially formed in the connector, and a tapered guide head is disposed in the tapered hole in a clearance-fit manner, so that the spring is fitted to an end surface of the guide head.

6. The locking detection device of the tunnel protection door according to any one of claims 1 to 5, wherein the protection shell is formed by splicing two semicircular tubes.

7. The locking detection device of the tunnel protection door according to any one of claims 1 to 6, wherein a cushion is arranged on one side of the reed switch close to the guide rod.

8. A tunnel protection door is characterized in that a lock box of the tunnel protection door is provided with a locking detection device of the tunnel protection door according to any one of claims 1-7, and a lock head of the tunnel protection door can push a guide rod to a corresponding position after being locked in place, so that a switch in a reed pipe is disconnected.

Technical Field

The invention belongs to the technical field of tunnel protection door matching, and particularly relates to a locking detection device of a tunnel protection door and the tunnel protection door comprising the same.

Background

In the process of tunnel construction, it is usually necessary to open a door opening in a tunnel and to arrange a protective door on the door opening for storing equipment related to tunnel operation and arranging an evacuation channel in the tunnel.

In the setting and using process of the tunnel protection door, the monitoring of the working state of the tunnel protection door is always the problem that the tunnel operation process needs to be focused. Because the train can produce the piston wind in the tunnel when moving in the tunnel, leads to the operational environment of tunnel guard gate often relatively poor, in case the tunnel guard gate is not in accurate operating condition, it just very easily leads to tunnel guard gate to appear becoming flexible, the risk that drops under the influence of piston wind or other factors, also can produce not little potential safety hazard.

At present, the state detection aiming at the tunnel protection door is usually realized by arranging an auxiliary detection/monitoring device corresponding to the tunnel protection door, so that the working state of the tunnel protection door is detected. For example, in the conventional patent document CN202021075265.5, a tunnel guard gate state monitoring system based on voice recognition is disclosed, which can effectively realize voice collection and judgment of the surrounding environment when the tunnel guard gate works by corresponding arrangement of each component in the system, thereby realizing detection of the working state of the tunnel guard gate. Although the state monitoring of tunnel guard gate can be realized to a certain extent to above-mentioned scheme, its monitoring system's structure is complicated, sets up and maintains inconveniently, moreover, the operational environment in the tunnel is complicated, and sound signal is more, hardly accurate sound signal of gathering. In addition, the scheme can not judge whether the tunnel protection door is locked in place or not in a targeted manner, can not reflect the locking state of the tunnel protection door intuitively, and has certain use limitation.

Disclosure of Invention

Aiming at one or more of the defects or the improvement requirements in the prior art, the invention provides a locking detection device of a tunnel protection door and the tunnel protection door comprising the same, which can effectively realize the state detection after the tunnel protection door is locked in place and ensure the stability and the reliability of the tunnel protection door during working.

In order to achieve the above object, in one aspect of the present invention, a locking detection device for a tunnel protection door is provided, which includes a mounting plate, a protection shell, a guide rod, a spring assembly and a reed pipe;

the protective shell penetrates through the mounting plate and is fixed on the mounting plate, a containing hole is formed in the middle of the protective shell along the axial direction, and the guide rod, the spring assembly and the reed pipe are respectively contained in the containing hole;

the guide rod is in a stepped shaft form, one end of the guide rod is embedded into the containing hole, and the other end of the guide rod extends out of the end part of the containing hole and can reciprocate in the containing hole along the axial direction; an annular step is formed on the periphery of the middle part of the guide rod, and an annular bulge is formed on the inner wall surface of one end of the accommodating hole, so that the guide rod can be limited by matching the annular step with the annular bulge;

the spring assembly comprises a spring which is coaxially arranged with the guide rod; one end of the spring is matched with the end part of the protective shell, which is far away from the guide rod, and the other end of the spring is matched with the end part of the guide rod, and the guide rod can be tightly propped against the annular bulge when the extending end of the guide rod is not stressed;

the reed switch is coaxially fixed in the accommodating hole and is of an annular structure, and a through hole for the spring and/or the guide rod to pass through is formed in the middle of the reed switch; meanwhile, a permanent magnet is arranged on the guide rod corresponding to the reed switch, the permanent magnet can be driven to a position close to the reed switch by a lock head after the tunnel protection door is locked in place, and a switch in the reed switch is switched off under the action of a magnetic field of the permanent magnet.

As a further improvement of the invention, the spring assembly further comprises a connector, the connector is matched with the end part of the accommodating hole deviating from the annular bulge in a threaded manner, and one end of the spring deviating from the guide rod is matched with the end face of the connector.

As a further improvement of the invention, a mounting shaft is also arranged corresponding to the mounting of the protective shell on the mounting plate;

the installation axle is the stepped shaft structure, and the through-hole has been seted up along the axial at its middle part for the coaxial of protecting crust passes and fixes, just the installation axle can pass the mounting panel at its one end after spacing with the step ladder to with gland nut locking on the mounting panel.

As a further improvement of the invention, the safety protection device further comprises a locking head, wherein the locking head is rotatably connected to the periphery of one end of the mounting shaft, which is far away from the guide rod, and a connecting through hole is formed in the middle of the locking head, which corresponds to the through hole of the mounting shaft, and is used for the penetration of the protection shell; and an internal thread is arranged in the connecting through hole and is matched with the protective shell through a thread.

As a further improvement of the invention, a conical hole is coaxially arranged in the connector, and a conical guide head is arranged in the conical hole in a clearance matching manner, so that the spring is matched with the end face of the guide head.

As a further improvement of the invention, the protective shell is formed by splicing two semicircular tubes.

As a further improvement of the invention, a buffer cushion is arranged on one side of the reed switch close to the guide rod.

In another aspect of the invention, a lock box of the tunnel protection door is provided with the locking detection device of the tunnel protection door, and a lock head of the tunnel protection door can push the guide rod to a corresponding position after being locked in place, so that a switch in the reed pipe is disconnected.

The above-described improved technical features may be combined with each other as long as they do not conflict with each other.

Generally, compared with the prior art, the technical scheme conceived by the invention has the following beneficial effects:

(1) according to the locking detection device for the tunnel protection door, the protection shell, the guide rod, the spring assembly and the reed switch are combined, and the permanent magnets are arranged on the guide rod in a matching mode, so that the state feedback after the lock head is locked in place is effectively realized, the whole process is simple to control, the influence factors are fewer, the detection of the locking state of the tunnel protection door can be fully guaranteed, the working state of the tunnel protection door can be judged in time, the damage to equipment in a tunnel chamber and the looseness or falling of the protection door caused by the action of piston wind in the tunnel under the unlocked state of the tunnel protection door are avoided, the working stability and reliability of the tunnel protection door are guaranteed, and the safe operation of the tunnel is guaranteed;

(2) according to the locking detection device for the tunnel protection door, the installation shaft, the locking head and other components are correspondingly arranged with the protection shell, so that the adjustment of the arrangement position of the protection shell is effectively realized, the possibility is provided for the application of the locking detection device in different types of lock boxes, the use flexibility of the locking detection device is improved, the application range of the locking detection device is expanded, and the use cost of the locking detection device is reduced;

(3) according to the locking detection device of the tunnel protection door, the working length and the pressure of the spring can be flexibly adjusted through the corresponding arrangement of the connector and the guide head in the spring assembly, so that the application under different application environments is met, and the flexibility and the reliability of the use of the locking detection device are improved;

(4) the locking detection device for the tunnel protection door is simple in structure and convenient to set and adjust, can effectively detect the locking state of the tunnel protection door, avoids the situation that the tunnel protection door is not locked in place in the tunnel operation process, ensures the safety and stability of the use and the operation of the tunnel protection door, effectively avoids the damage of the tunnel protection door, reduces the application and maintenance cost of the tunnel protection door, and has better application prospect and popularization value.

Drawings

FIG. 1 is a schematic view of a lock detection device in an embodiment of the present invention when not in operation;

FIG. 2 is a schematic structural view of a lock detection device in an embodiment of the present invention in operation;

FIG. 3 is a schematic structural diagram of key components of the lock detection device in the embodiment of the present invention;

in all the figures, the same reference numerals denote the same features, in particular:

1. a protective shell; 2. a guide bar; 3. a spring assembly; 4. a reed switch; 5. installing a shaft; 6. a compression nut; 7. a locking head; 8. mounting a plate;

201. a permanent magnet; 301. a connector; 302. a spring; 303. and (4) guiding the head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated 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; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. 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. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher 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.

Example (b):

referring to fig. 1 to 3, a locking detection device for a tunnel protection door in a preferred embodiment of the present invention is disposed corresponding to a lock box of the tunnel protection door, and is used for detecting whether a lock head is locked in place in the lock box, and includes a protection shell 1, and a guide rod 2 and a spring assembly 3 disposed in the protection shell 1.

Specifically, the shield case 1 in the preferred embodiment is a cylindrical tubular structure with a through hole formed in the middle thereof in the axial direction for coaxial arrangement of the guide rod 2 and the spring assembly 3. As shown in fig. 1, the guide rod 2 in the preferred embodiment is in a stepped shaft structure, and the outer periphery of the middle portion is formed with an annular step, one end of which is received in the through hole for matching with the spring assembly 3, and the other end of which extends out from the end of the through hole for abutting matching with the lock head. Correspondingly, an annular bulge is formed on the inner wall surface at one end of the through hole and used for limiting the annular step on the guide rod 2, so that the guide rod 2 is prevented from falling out of the protective shell 1.

Further, a spring assembly 3 is arranged at the other end of the protective shell 1 facing away from the guide rod 2, which comprises a connector 301 that can be matched to the end of the protective shell 1 and a spring 302 with one end connected to the connector 301. Accordingly, the other end of the spring 302 is coaxially connected to the end of the guide rod 2, as shown in fig. 3. After the coupling head 301 is fitted to the end of the through hole, the spring 302 is in a somewhat pre-compressed state and presses the guide rod 2 against the annular projection, as shown in fig. 1.

Obviously, by adjusting the matching length of the connector 301 in the through hole, the degree of compression of the spring 302 can be changed, thereby adjusting the force applied by the spring 302 to the guide bar 2. In a preferred embodiment, the connection head 301 is screwed to the protective housing 1, and the degree of compression of the spring 302 can be adjusted by changing the length of the screw-in of the connection head 301.

Further preferably, in order to ensure the compression of the spring 302, a guide head 303 is provided corresponding to the spring 302, an end of the spring 302 is connected to the guide head 303, the guide head 303 is in a tapered structure, and a tapered hole is opened on the connection head 301, so that the guide head 303 matches with the tapered hole in a sliding clearance manner. Due to the dead weight of the guide head 303, the spring 302 can bear a downward force, and thus, a downward force is applied to the guide rod 2.

As shown in FIGS. 1 to 3, a reed switch 4 is fixedly arranged in the middle of the protection shell 1 in the preferred embodiment, and a through hole is formed in the middle of the reed switch 4 for one end of a spring 302 to pass through. Accordingly, a permanent magnet 201 is provided at the end of the guide bar 2 to which the spring 302 is connected. When the guide rod 2 is pressed by the spring 302 and abuts against the annular protrusion, one end of the spring 302 penetrates through the reed switch 4 for a certain length, so that the permanent magnet 201 is far away from the reed switch 4, and at the moment, metal sheets in the reed switch 4 are in contact with each other, and the switch of the reed switch 4 is switched on. When one end of the guide rod 2, which is far away from the spring 302, is abutted by a lock head and moves axially, the spring 302 is compressed, the permanent magnet 201 gradually approaches the reed pipe 4, once the distance between the reed pipe 4 and the permanent magnet 201 reaches a preset distance, the metal sheets in the reed pipe 4 are separated under the action of a magnetic field, so that the switch of the reed pipe 4 is disconnected, and at the moment, the lock head is indicated to be locked in place.

It can be understood that the matching distance between the permanent magnet 201 and the reed switch 4 can be adjusted according to actual needs, and when the lock head is locked in place, the end part of the guide rod 2 is still preferably away from the reed switch 4 by a certain distance, so that the guide rod 2 has a certain buffering distance when being driven. Preferably, a buffer pad is arranged on one side of the reed switch 4 close to the guide rod 2, so that the impact force of the guide rod 2 can be effectively buffered.

In another preferred embodiment, the end of the guide rod 2 near the spring 302 is also provided in the form of a stepped shaft, and the end of the stepped shaft can pass through a through hole in the middle of the reed pipe 4 and match with the end of the spring 302, and in this case, the reed pipe 4 can be provided to guide the movement of the guide rod 2. Accordingly, the permanent magnet 201 is arranged in the middle of the guide rod 2, and the permanent magnet can be close to the reed switch 4 after the guide rod 2 moves, so that the on-off control process of the switch inside the reed switch 4 is completed.

Further, in actual setting, the protective shell 1 is preferably formed by splicing two semicircular pipes, a mounting shaft 5 is fixedly arranged corresponding to the protective shell 1, the mounting shaft 5 is of a stepped shaft structure, and an annular bulge is formed in the middle of the mounting shaft and used for limiting on the mounting plate 8; correspondingly, the one end of installation axle 5 corresponds mounting panel 8 and sets up to the link, and its periphery is provided with the external screw thread for pass mounting panel 8 and with the protruding spacing on mounting panel 8 of annular, and then correspond the link and set up gland nut 6 in mounting panel 8 one side that deviates from the annular arch, through gland nut 6 with the link match, realize the installation of installation axle 5 on mounting panel 8.

Furthermore, a matching hole is formed in the middle of the mounting shaft 5 corresponding to the protective shell 1 for coaxial embedding of the protective shell 1; correspondingly, be provided with locking head 7 in the installation axle 5 one end periphery that deviates from gland nut 6, it can be at the periphery of installation axle 5 on pivoting, and the matching hole that the middle part of locking head 7 corresponds on the installation axle 5 has seted up the through-hole. Simultaneously, be provided with the internal thread in the through-hole internal periphery of locking head 7 to be provided with the external screw thread in the one end periphery of protecting crust 1, make locking head 7 match with the one end of protecting crust 1 with the screw thread, then through the rotation of locking head 7, can realize protecting crust 1 at axial reciprocating motion, and then change the position of guide arm 2 in the lock box. Because its lock box of tunnel guard gate of different models probably has the model difference, consequently, through the corresponding setting of locking head 7 with protecting crust 1, can effectively solve the position that changes guide arm 2 in the lock box.

Fig. 1 and 2 show two working states of the locking detection device, wherein the end of the guide rod 2 in fig. 1 is not stressed and is pressed by a spring 302 at one end far away from the reed pipe 4, and a switch in the reed pipe 4 is communicated at the moment, so that the tunnel protection door is not locked in place; the end of the guide rod 2 in fig. 2 is pressed against by the lock head and is driven to a position close to the reed switch 4, and at the moment, the switch in the reed switch 4 is disconnected, so that the tunnel protection door is locked in place.

It can be understood that the tunnel protection door is a small-probability event when not locked in place, the reed switch 4 is communicated only when the tunnel protection door is not locked in place, and is in a disconnected state when the tunnel protection door is locked in place, so that long-time work of the reed switch 4 when the tunnel protection door is locked in place is avoided, and heating of the device and waste of energy are also avoided.

The locking detection device for the tunnel protection door is simple in structure and convenient to set and adjust, can effectively detect the locking state of the tunnel protection door, avoids the situation that the tunnel protection door is not locked in place in the tunnel operation process, ensures the safety and stability of the tunnel protection door in use and tunnel operation, effectively avoids the damage of the tunnel protection door, reduces the application and maintenance cost of the tunnel protection door, and has better application prospect and popularization value.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.