Anti-disengagement pin device and animal cage comprising same

Abstract

The utility model provides a kind of anti-extraction device and the animal cage including it, and the anti-extraction device includes bolt, support installed on tray and plug-in seat installed in cage body, and plug-in seat has plug-in hole, and bolt includes bolt body and anti-extraction piece, bolt body is rotatably connected to support, and bolt body can be moved along the direction close to plug-in seat on support and have locking state or along the direction away from plug-in seat and have unlocking state;When locking state, bolt body is inserted into plug-in hole, and anti-extraction piece passes through plug-in hole and abuts on the inner wall surface of plug-in seat, to prevent bolt body from separating out plug-in seat;When unlocking state, anti-extraction piece passes through plug-in hole and separates out plug-in seat. By abutting on the inner wall surface of plug-in seat by anti-extraction piece, thereby effectively prevent tray from falling off, improve anti-extraction performance. At the same time, by rotating, pushing and pulling bolt body, the switching of locking state and unlocking state can be realized, simple structure, convenient operation.

Description

Technical Field

[0001] This utility model relates to an anti-detachment pin device and an animal cage containing the same. Background Technology

[0002] In biomedical research, laboratory monkeys are widely used as a routine species for various types of experimental studies. When conducting animal experiments with laboratory monkeys, they are usually kept in cages. The cages have a tray at the bottom for collecting feces and urine, and a latch on each side to secure the tray. Because the cage door is a slatted design, the monkeys can easily extend their upper limbs outside the cage to pull out the latches and grab the tray, causing it to detach from the cage and potentially leading to cross-contamination during the experiment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defect of easy removal of the pin to grab the tray in the prior art, and to provide an anti-pin removal device and an animal cage containing the same.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] An anti-detachment pin device is characterized in that it includes a pin, a bracket mounted on a tray, and a connector mounted on a cage body. The connector has a connector hole. The pin includes a pin body and an anti-detachment component. One end of the anti-detachment component is connected to the outer peripheral surface of the pin body, and the other end of the anti-detachment component extends outward and protrudes. The pin body is rotatably connected to the bracket, and the pin body can move on the bracket in a direction close to the connector and have a locked state or move in a direction away from the connector and have an unlocked state.

[0006] In the locked state, the pin body is inserted into the plug hole, and the anti-disengagement member passes through the plug hole and abuts against the inner wall of the plug socket to prevent the pin body from disengaging from the plug socket.

[0007] In the unlocked state, the anti-disengagement component passes through the plug hole and disengages from the plug socket.

[0008] In this solution, the aforementioned structure is adopted. In the locked state, the anti-detachment component abuts against the inner wall of the connector, causing the pin body to disengage from the connector, thereby effectively preventing the tray from falling off and improving anti-detachment performance. Simultaneously, during the locking process, the pin body is rotated to align the anti-detachment component with the connector hole. Then, the pin is pulled, forcing the anti-detachment component through the connector hole, and the component abuts against the inner wall of the connector, thus locking the anti-detachment pin device. During the unlocking process, the pin body is rotated to align the anti-detachment component with the connector hole, and then the pin is pulled out, unlocking the device. Switching between the locking and unlocking states can be achieved by rotating and pushing / pulling the pin body. The structure is simple and the operation is convenient.

[0009] Preferably, the pin body includes a pin rod portion and a handle. The pin rod portion is rotatably connected to the bracket and is movable on the bracket. One end of the handle is connected to the end of the pin rod portion away from the socket, and the other end of the handle extends radially outward along the pin rod portion. The extension direction of the handle is opposite to the extension direction of the anti-disengagement component.

[0010] In this solution, the above-mentioned structure is adopted, which enables the anti-disengagement component to be precisely aligned with the insertion hole when the handle is turned. Then, the pin is moved to allow the anti-disengagement component to pass through the insertion hole, making the operation more convenient.

[0011] Preferably, the pin body further includes an elastic element and a stop portion, the stop portion being connected to the outer peripheral surface of the pin body, and the two ends of the elastic element abutting against the stop portion and the bracket respectively, and applying a force to the stop portion along the proximity to the plug seat.

[0012] In this solution, the above-mentioned structural form is adopted. The elastic element continuously applies a pre-tightening force to the abutment part. The combination of the pre-tightening force of the elastic element and the mechanical limiting of the anti-disengagement element provides redundant anti-disengagement protection, resulting in better anti-disengagement performance. Under the action of the pre-tightening force of the elastic element, the pin body can be automatically guided and assisted to be fully inserted into place, making the operation simpler.

[0013] Preferably, there are multiple insertion holes, and the multiple insertion holes are spaced apart along the height direction of the insertion socket.

[0014] In this solution, the above-mentioned structural form is adopted, which allows the pin to be flexibly adjusted in the insertion position, thereby allowing the position of the tray connected to the pin to be adjusted.

[0015] Preferably, the insertion hole is an oblong hole.

[0016] In this solution, the above-mentioned structural form is adopted, which makes the contact between the pin body and the waist-shaped hole tighter, making it easier to insert and pull out, and ensuring the stability of the anti-detachment pin connection.

[0017] Preferably, the anti-disengagement component is cylindrical. The cylindrical anti-disengagement component can abut against the inner wall of the connector to prevent the pin from disengaging.

[0018] Preferably, the number of the anti-detachment component is one;

[0019] Alternatively, there may be multiple anti-detachment components, and the outward protrusions of the multiple anti-detachment components may extend in different directions.

[0020] In this solution, the above-mentioned structure is adopted, and one anti-detachment component is set up to achieve the state in which the anti-detachment component abuts against the inner wall of the connector, so that the anti-detachment pin device enters the locking state, and the structure is simple.

[0021] Multiple anti-disengagement components are provided. If the anti-disengagement component close to the inner wall of the connector becomes misaligned or deformed and damaged due to extreme external forces, the remaining anti-disengagement components can still provide effective locking force, providing redundant safety backup and extremely high reliability under extreme working conditions.

[0022] Preferably, the insertion seat includes a first flange plate, a second flange plate, and a web plate. The first flange plate, the web plate, and the second flange plate are connected in sequence to form a metal groove with a U-shaped cross-section. The insertion hole is disposed on the first flange plate, and the second flange plate is connected to the cage body.

[0023] In this solution, the above-mentioned structural form is adopted, so that the pin body is connected and fixed to the plug seat. Since the pin body is connected to the support, the support is connected to the tray, and the plug seat is connected to the cage body, the tray and the cage body are finally connected and fixed, and are not easy to fall out.

[0024] An animal cage is characterized in that it includes a cage body, a tray, and an anti-detachment device as described above, the tray being disposed directly below the cage body.

[0025] In this solution, the above-mentioned structural form is adopted, and the tray is placed directly below the cage body so that the tray can collect feces and urine.

[0026] Preferably, there are two cage bodies and two trays, and four anti-detachment pin devices;

[0027] The two cage bodies are arranged vertically at intervals, and each cage body has a tray at its bottom. Each pair of anti-detachment pin devices is respectively arranged on both sides of one of the trays.

[0028] In this solution, the above-mentioned structural form and independently configured trays are adopted to avoid the spread of diseases between animals. By setting anti-detachment pin devices on both sides of the tray, the force on the tray is evenly distributed, the connection is more secure, and the unlocking and removal of the tray is more convenient and quick, improving the convenience and efficiency of maintenance operations, expanding the breeding space, and improving space utilization.

[0029] The positive and progressive effects of this utility model are as follows:

[0030] This utility model discloses an anti-detachment pin device and an animal cage containing it. In the locked state, the anti-detachment component abuts against the inner wall of the insertion seat to prevent the pin body from disengaging, thus effectively preventing the tray from falling off and improving anti-detachment performance. Simultaneously, during locking, rotating the pin body aligns the anti-detachment component with the insertion hole, then pulling the pin forces the anti-detachment component through the insertion hole, with the component abutting against the inner wall of the insertion seat, thus locking the anti-detachment pin device. During unlocking, rotating the pin body aligns the anti-detachment component with the insertion hole, then pulling out the pin unlocks the device. Switching between the locked and unlocked states is achieved by rotating and pushing / pulling the pin body. The structure is simple and the operation is convenient. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the animal cage according to Embodiment 1 of this utility model.

[0032] Figure 2 This is a schematic diagram of the anti-detachment pin device in the locked state according to Embodiment 1 of this utility model.

[0033] Figure 3 This is a schematic diagram of the anti-detachment pin device in the locked state according to Embodiment 2 of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] Animal cage 1

[0036] Cage body 11

[0037] tray 12

[0038] Anti-pin removal device 2

[0039] Pin 21

[0040] 211 pin body

[0041] Pin rod 2111

[0042] Handle 2112

[0043] Elastic component 2113

[0044] 2114, the base

[0045] Anti-slip part 212

[0046] Bracket 22

[0047] First leg 221

[0048] Installation Section 222

[0049] Mounting hole 2221

[0050] Second leg 223

[0051] Through hole 224

[0052] Socket 23

[0053] First flange 231

[0054] Socket 2311

[0055] Web 232

[0056] Second flange 233 Detailed Implementation

[0057] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0058] Example 1

[0059] like Figure 1 As shown, this embodiment discloses an animal cage 1, which includes a cage body 11, a tray 12, and an anti-detachment pin device 2. The tray 12 is disposed directly below the cage body 11. The tray 12 is disposed directly below the cage body 11 so that it can collect feces and urine.

[0060] like Figure 1 and Figure 2 As shown, this embodiment discloses an anti-detachment pin device 2, which includes a pin 21, a bracket 22 mounted on a tray 12, and a connector 23 mounted on a cage body 11. The connector 23 has a connector hole 2311. The pin 21 includes a pin body 211 and an anti-detachment component 212. One end of the anti-detachment component 212 is connected to the outer peripheral surface of the pin body 211, and the other end of the anti-detachment component 212 extends outward and protrudes. The pin body 211 is rotatably connected to the bracket 22, and the pin... The pin body 211 can move on the bracket 22 in a direction close to the plug seat 23 and have a locked state or move in a direction away from the plug seat 23 and have an unlocked state; in the locked state, the pin body 211 is inserted into the plug hole 2311, and the anti-disengagement member 212 passes through the plug hole 2311 and abuts against the inner wall surface of the plug seat 23 to prevent the pin body 211 from disengaging from the plug seat 23; in the unlocked state, the anti-disengagement member 212 passes through the plug hole 2311 and disengages from the plug seat 23.

[0061] In the locked state, the anti-detachment component 212 abuts against the inner wall of the connector 23 to prevent the pin body 211 from disengaging from the connector 23, thereby effectively preventing the tray 12 from falling off and improving the anti-detachment performance. Simultaneously, during the locking process, the pin body 211 is rotated so that the anti-detachment component 212 aligns with the connector hole 2311. Then, the pin 21 is pulled, and the anti-detachment component 212 passes through the connector hole 2311, with the anti-detachment component 212 abutting against the inner wall of the connector 23, causing the anti-detachment pin device 2 to enter the locked state. During the unlocking process, the pin body 211 is rotated so that the anti-detachment component 212 aligns with the connector hole 2311. Then, the pin 21 is pulled out, causing the anti-detachment pin device 2 to enter the unlocked state. Switching between the locked and unlocked states can be achieved by rotating and pushing / pulling the pin body 211. The structure is simple and the operation is convenient.

[0062] In this embodiment, the bracket 22 includes a mounting part 222, a first leg 221, and a second leg 223. The mounting part 222 has multiple mounting holes 2221, and multiple screws pass through the mounting holes 2221 to connect the mounting part 222 to the side of the tray 12. The first leg 221 and the second leg 223 are respectively connected to the two ends of the mounting part 222 and extend in a direction away from the tray 12. Both the first leg 221 and the second leg 223 have symmetrical through holes 224. The pin body 211 passes through the through holes 224 and can slide and rotate horizontally between the through holes 224. In the locked state, the anti-detachment member 212 abuts against the inner wall of the plug seat 23 to prevent the pin body 211 from detaching from the plug seat 23, thereby effectively preventing the tray 12 from falling off and improving the anti-detachment performance. Simultaneously, during the locking process, the bolt body 211 is rotated so that the anti-detachment component 212 is aligned with the insertion hole 2311. Then, the bolt 21 is pulled and the anti-detachment component 212 passes through the insertion hole 2311, and the anti-detachment component 212 abuts against the inner wall of the insertion seat 23, so that the anti-detachment device 2 enters the locking state. During the unlocking process, the bolt body 211 is rotated so that the anti-detachment component 212 is aligned with the insertion hole 2311. Then, the bolt 21 is pulled out so that the anti-detachment device 2 enters the unlocking state. The locking and unlocking states can be switched by rotating and pushing / pulling the bolt body 211. The structure is simple and the operation is convenient.

[0063] The pin body 211 includes a pin rod portion 2111 and a handle 2112. The pin rod portion 2111 is rotatably connected to the bracket 22 and is movable on the bracket 22. One end of the handle 2112 is connected to the end of the pin rod portion 2111 away from the insertion seat 23, and the other end of the handle 2112 extends radially outward along the pin rod portion 2111. The extension direction of the handle 2112 is opposite to the extension direction of the anti-disengagement member 212. The pin rod portion 2111 is slidably connected to the bracket 22, and the extension direction of the handle 2112 is opposite to the extension direction of the anti-disengagement member 212, so that when the handle 2112 is rotated, the anti-disengagement member 212 can be accurately aligned with the insertion hole 2311. Then, the pin 21 is translated to allow the anti-disengagement member 212 to pass through the insertion hole 2311, making operation more convenient.

[0064] The pin body 211 also includes an elastic element 2113 and a stop portion 2114. The stop portion 2114 is connected to the outer peripheral surface of the pin body 211, and the two ends of the elastic element 2113 abut against the stop portion 2114 and the bracket 22 respectively, applying a force to the stop portion 2114 along the proximity to the insertion seat 23. The elastic element 2113, by applying a preload, continuously applies a pushing force towards the insertion hole 2311 to the stop portion 2114 and the entire pin body 211. The stop portion 2114 always maintains close contact with the inner wall of the first leg 221, improving the anti-disengagement performance of the pin 21. When switching from the unlocked state to the locked state, simply align the anti-detachment element 212 on the pin 21 with the insertion hole 2311, then pull the pin body 211. After releasing, the pin body 211 will automatically guide itself under the pre-tightening force of the elastic element 2113 and assist it in being fully inserted, making the operation simple. Afterward, rotate the pin 21 at a certain angle to achieve the locked state. The combination of the warning force of the elastic element 2113 and the mechanical limit of the anti-detachment element 212 provides redundant anti-detachment protection and better anti-detachment performance.

[0065] In this embodiment, the elastic element 2113 is a spring; in other embodiments, the elastic element 2113 may also be a rubber block or other elastic components. The abutment part 2114 is a retaining ring and is sleeved on the pin body 211.

[0066] The number of insertion holes 2311 is multiple, and the multiple insertion holes 2311 are spaced apart along the height direction of the insertion base 23. The arrangement of the insertion holes 2311 along the height direction of the insertion base 23 allows the pin 21 to be flexibly adjusted in the insertion position, thereby allowing adjustment of the position of the tray 12 connected to the pin 21. In this embodiment, three insertion holes 2311 are spaced apart along the height direction of the insertion base 23. Of course, the number of insertion holes 2311 is not limited.

[0067] The insertion hole 2311 is an oblong hole. When the pin body 211 rotates within the oblong hole, the long side of the hole contacts the anti-disengagement component 212, restricting its passage only when the anti-disengagement component 212 is parallel to the oblong hole. The rounded edge of the oblong hole makes the contact between the pin body 211 and the oblong hole tighter, facilitating insertion and removal and ensuring the stability of the anti-disengagement pin device 2 connection. The three insertion holes 2311 extend horizontally and are spaced apart in height.

[0068] The anti-disengagement component 212 is cylindrical. The cylindrical anti-disengagement component 212 can abut against the inner wall of the connector 23 to prevent the pin 21 from dislodging. It has a simple structure and is easy to manufacture. In other embodiments, the shape of the anti-disengagement component 212 only needs to be sufficient to abut against the inner wall of the connector 23. The anti-disengagement component 212 is welded to the outer peripheral surface of the pin body 211.

[0069] The quantity of anti-slip component 212 is one, such as Figure 2 As shown, in this embodiment, one anti-detachment component 212 is provided, which can achieve the state of the anti-detachment component 212 abutting against the inner wall surface of the plug-in seat 23, so that the anti-detachment pin device 2 enters the locking state, and the structure is simple.

[0070] The plug-in socket 23 includes a first flange plate 231, a second flange plate 233 and a web plate 232. The first flange plate 231, the web plate 232 and the second flange plate 233 are connected in sequence to form a metal groove with a U-shaped cross section. The plug-in hole 2311 is provided in the first flange plate 231 and the second flange plate 233 is connected to the cage body 11. In this embodiment 1, the second flange plate 233 is welded and fixed to the cage body 11. The second flange plate 233 is provided with three insertion holes 2311 along the height direction. The pin body 211 is rotated and passed through the insertion hole 2311. The anti-detachment component 212 abuts against the inner wall surface of the first flange plate 231 of the insertion seat 23, so that the pin body 211 is connected and fixed to the insertion seat 23. Since the pin body 211 is connected to the support, the support is connected to the tray 12, and the insertion seat 23 is connected to the cage body 11, the tray 12 is finally connected and fixed to the cage body 11 and is not easy to detach.

[0071] In this embodiment, there are two cage bodies 11 and two trays 12, and four anti-detachment pin devices 2.

[0072] Two cage bodies 11 are arranged vertically spaced apart, and each cage body 11 has a tray 12 at its bottom. Two anti-detachment pin devices 2 are respectively arranged on both sides of one tray 12. In this embodiment, by arranging the two cage bodies 11 vertically spaced apart and independently configuring a tray 12 at the bottom of each cage body 11, the breeding space is expanded and the space utilization rate is improved without changing the floor area. The independently configured trays 12 prevent the spread of diseases between animals. By setting anti-detachment pin devices 2 on both sides of the tray 12, the force on the tray 12 is evenly distributed, the connection is more secure, and unlocking and removing the tray 12 is more convenient and quick, improving the convenience and efficiency of maintenance operations. Of course, in other embodiments, the number of cage bodies 11, trays 12, and anti-detachment pin devices 2 is not limited.

[0073] Example 2

[0074] like Figure 3 As shown, the parts of the anti-detachment pin device 2 in this embodiment 2 that are the same as those in embodiment 1 will not be repeated; only the differences will be explained. In this embodiment 2, there are multiple anti-detachment components 212, and the multiple anti-detachment components 212 extend outward in different directions. The multiple anti-detachment components 212 can form multiple independent mechanical locking points at different positions on the inner wall of the insertion seat 23. When the anti-detachment component 212 close to the inner wall of the insertion seat 23 is misaligned, or deformed and damaged due to extreme external force, the remaining anti-detachment components 212 can still provide effective locking force, providing redundant safety backup and further improving the stability and reliability of the animal cage 1.

[0075] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A device for preventing pin detachment, characterized in that, It includes a pin, a bracket mounted on a tray, and a connector mounted on the cage body. The connector has a connector hole. The pin includes a pin body and an anti-detachment component. One end of the anti-detachment component is connected to the outer peripheral surface of the pin body, and the other end of the anti-detachment component extends outward and protrudes. The pin body is rotatably connected to the bracket, and the pin body can move on the bracket in a direction close to the connector and have a locked state or move in a direction away from the connector and have an unlocked state. In the locked state, the pin body is inserted into the plug hole, and the anti-disengagement member passes through the plug hole and abuts against the inner wall of the plug socket to prevent the pin body from disengaging from the plug socket. In the unlocked state, the anti-disengagement component passes through the plug hole and disengages from the plug socket.

2. The anti-pin removal device as described in claim 1, characterized in that, The pin body includes a pin rod and a handle. The pin rod is rotatably connected to the bracket and is movable on the bracket. One end of the handle is connected to the end of the pin rod away from the socket, and the other end of the handle extends radially outward along the pin rod. The extension direction of the handle is opposite to the extension direction of the anti-disengagement component.

3. The anti-pin removal device as described in claim 1, characterized in that, The pin body further includes an elastic element and a stop portion. The stop portion is connected to the outer peripheral surface of the pin body, and the two ends of the elastic element abut against the stop portion and the bracket respectively, and apply a force to the stop portion along the proximity to the plug seat.

4. The anti-pin removal device as described in claim 1, characterized in that, The number of the plug holes is multiple, and the multiple plug holes are spaced apart along the height direction of the plug socket.

5. The anti-pin removal device as described in claim 1, characterized in that, The insertion hole is a waist-shaped hole.

6. The anti-pin removal device as described in claim 1, characterized in that, The anti-detachment component is cylindrical in shape.

7. The anti-pin removal device as described in claim 1, characterized in that, The number of the anti-detachment component is one; Alternatively, there may be multiple anti-detachment components, and the multiple anti-detachment components may extend outward in different directions.

8. The anti-pin removal device as described in claim 1, characterized in that, The insertion socket includes a first flange plate, a second flange plate, and a web plate. The first flange plate, the web plate, and the second flange plate are connected in sequence to form a metal groove with a U-shaped cross section. The insertion hole is provided in the first flange plate, and the second flange plate is connected to the cage body.

9. An animal cage, characterized in that, It includes a cage body, a tray, and an anti-detachment device as described in any one of claims 1-8, wherein the tray is disposed directly below the cage body.

10. The animal cage as described in claim 9, characterized in that, The cage body and the tray are both in two quantities, and the anti-detachment pin device is in four quantities; The two cage bodies are arranged vertically at intervals, and each cage body has a tray at its bottom. Each pair of anti-detachment pin devices is respectively arranged on both sides of one of the trays.

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