Polymorphic continuous mouse trapping device
By designing a multi-form continuous rat trapping device, using sensors and actuators to control the moving trapping gate, and combining a one-way passage device and rat storage space, the problem of manual cleaning required by traditional rat traps is solved, and efficient automatic rat capture and storage is achieved.
Patent Information
- Application Number
- CN202422947304.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Traditional rat traps require manual cleaning and resetting of mechanisms after catching rats, resulting in low catching efficiency.
Design a multi-form continuous mouse trapping device that uses sensors and actuators to control the opening and closing of the active trapping gate, combined with a one-way passage device and mouse storage space, to achieve automatic capture and storage of mice.
It improves rat-catching efficiency, prevents rats from escaping, simplifies the cleanup process, and ensures the continuous use of the rat-catching device.
Smart Images
Figure CN223667137U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rodent catching technical field more specifically, it relates to multi-form continuous mouse catching device. BACKGROUND
[0002] Mice are one of the most primitive mammals that exist, they are vigorous, numerous and reproduce at an extremely fast rate, and have strong adaptability.
[0003] The existence of mice can cause many hazards. First, they will waste food and fruits, steal and destroy crops, and affect food production. This not only directly reduces the income of farmers, but also can cause great loss of food and economic loss. Second, mice will bite wires, data lines and electrical equipment, causing short circuits and leading to fires and other dangers. Mice can also cause reputational damage to businesses. For example, the presence of mice in hotels, factories and other places can damage goods, affect customer experience, and seriously damage business reputation, causing immeasurable negative impact and economic loss to businesses.
[0004] More importantly, mice are also carriers of many diseases, such as plague, epidemic hemorrhagic fever, and leptospirosis, and they can carry and spread these diseases when they are active indoors, posing a threat to human health. In addition, mouse feces and urine can also contaminate food and pose a potential threat to human health.
[0005] Therefore, people often use mouse traps to catch mice, but the traditional mouse cage still functions like an ordinary mouse trap, and after triggering, it cannot continue to catch mice. At this time, the staff needs to clean the captured mice, reopen the cage door and set up the mechanism to use it again, which greatly reduces the trapping efficiency of the mouse trap. UTILITY MODEL CONTENT
[0006] The technical problem to be solved by the utility model is that people often use mouse traps to catch mice, but the traditional mouse cage still functions like an ordinary mouse trap, and after triggering, it cannot continue to catch mice. At this time, the staff needs to clean the captured mice, reopen the cage door and set up the mechanism to use it again, which greatly reduces the trapping efficiency of the mouse trap. In view of the above defects of the prior art, a multi-form continuous mouse catching device is provided.
[0007] The technical solution adopted by the utility model to solve its technical problem is:
[0008] The application discloses a multi-form continuous mouse trapping device, which comprises a mouse trapping device, a mouse trapping space is formed in the mouse trapping device, movable trapping doors are arranged on two sides of the mouse trapping device, a sensing device and a driving element for driving the movable trapping doors to open or close are arranged at the bottom of the mouse trapping device, when the sensing device senses that there is a mouse in the mouse trapping space, the driving element drives the movable trapping doors to close, and when the sensing device senses that there is no mouse in the mouse trapping space, the driving element drives the movable trapping doors to open.
[0009] The application further discloses a mouse storage device, which is provided with a mouse storage space communicated with the mouse trapping space, and a one-way passage device is arranged in the mouse storage space, and a detection device is arranged in the one-way passage device.
[0010] Optionally, the driving element comprises a driving motor, a rotating element driven to rotate by the driving motor, and a linkage arm driven by the rotating element to open or close the movable trapping doors.
[0011] Optionally, the mouse storage device comprises a first mouse storage box arranged at the top of the mouse trapping device, the first mouse storage box comprises a climbing opening communicated with the mouse trapping space, and a climbing plate for facilitating the mouse to climb from the mouse trapping space to the first mouse storage box is arranged below the climbing opening.
[0012] Optionally, the detection device comprises a first detection element, the one-way passage device comprises a one-way channel arranged in the first mouse storage box, at least one one-way passage plate is arranged in the one-way channel, the first detection element is arranged in the one-way channel and is used for detecting whether the mouse has passed through the first one-way passage plate, the one-way passage plate can allow the mouse to pass through in a forward direction and does not allow the mouse to pass through in a reverse direction after passing through the one-way passage plate in the forward direction.
[0013] Optionally, a first bait storage bin is arranged on one side of the one-way channel, and an opening communicated with the first bait storage bin is arranged on the side wall of the one-way channel.
[0014] Optionally, a mouse taking opening and a shielding plate for shielding the mouse taking opening are arranged on the side wall of the first mouse storage box, the mouse taking opening is communicated with the bait storage bin, and bait in the bait storage bin can be added or taken out through the mouse taking opening.
[0015] Optionally, the mouse storage device comprises a second mouse storage box and a mouse storage pipeline, and the side wall of the mouse trapping device and the side wall of the second mouse storage box are both provided with an assembly communication element for assembly and communication with the mouse storage pipeline.
[0016] Optionally, the assembly communication piece comprises a connecting through hole and a sleeve piece, the sleeve piece comprises a mounting part detachably connected with the sidewall of the mouse trapping device or the sidewall of the second mouse storage box and a sleeve main body penetrating in the connecting through hole, and the mouse storage pipe is sleeved on the outer sidewall of the sleeve main body and fixedly connected through a clamp piece.
[0017] Optionally, a first one-way limiting plate allowing one-way entry into the mouse storage pipe is arranged on the inner sidewall of the sleeve piece arranged on the mouse trapping device, a second one-way limiting plate allowing one-way entry from the mouse storage pipe into the second mouse storage box is arranged on the inner sidewall of the sleeve piece arranged on the second mouse storage box, and the detection device comprises a second detection piece, the second detection piece comprises a detection seat and a detection head, the detection seat is arranged in the mouse trapping device, the detection head is arranged on the top of the first one-way limiting plate, and the detection seat and the detection head are cooperatively used for detecting whether the mouse triggers the first one-way limiting plate to enter the mouse storage pipe.
[0018] Optionally, the first one-way limiting plate comprises a first hinge connected with the inner sidewall of the sleeve piece and a first limiting plate main body connected with the first hinge, and the second one-way limiting plate comprises a second hinge connected with the inner sidewall of the sleeve piece and a second limiting plate main body connected with the second hinge.
[0019] The mouse trapping device has the advantages that:
[0020] 1、The mouse trapping device is not sensitive to the mouse in the mouse trapping space, at this time, the movable trapping door is in an open state, when the mouse enters the mouse trapping space and is sensed by the sensing device, the driving piece will drive the movable trapping door to close, so as to trap the mouse in the mouse trapping space, when the mouse enters the mouse storage space through the one-way passing device and cannot leave the mouse storage space through the one-way passing device, the mouse is trapped in the mouse storage space, at this time, when the detection device detects that the mouse enters the one-way passing device and cannot return along the original route, the movable trapping door changes from the closed state to the open state, waiting for the arrival of the next mouse, the mouse trapping device can quickly close the movable trapping door after the mouse enters the mouse trapping space through the cooperation of the sensing device, the detection device and the driving piece, so as to effectively trap the mouse, the mouse storage device is communicated with the mouse trapping space, the trapped mouse can enter the mouse storage space through the one-way passing device, and subsequent processing and cleaning are facilitated, the design of the one-way passing device makes the mouse only enter the mouse storage space and cannot return to the mouse trapping space, so that the possibility of mouse escape is avoided.
[0021] 2、The utility model discloses a first mouse storage box can be replaced with second mouse storage box, when the mouse trap device captures the mouse, the mouse will tend to the nature of burrowing hole and move to the second mouse storage box through the mouse storage pipeline, avoid the long -term stay of mouse in the mouse trap device, make them send the special smell of reminding the companion of danger, and the other mouse is identified, and other mice can avoid approaching the mouse trap device because of the special smell. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the utility model will be further described below with the drawings and the embodiment, the drawings in the following description are only partial embodiments of the utility model, and other drawings can also be obtained according to these drawings without the premise of creative labor for the ordinary skilled in the art:
[0023] Figure 1 It is the axis measurement schematic drawing when the mouse trap device and first mouse storage box are used in the utility model.
[0024] Figure 2 It is the explosion schematic drawing when the mouse trap device and first mouse storage box are used in the utility model.
[0025] Figure 3 It is another axis measurement schematic drawing when the mouse trap device and first mouse storage box are used in the utility model.
[0026] Figure 4 It is the bottom schematic drawing when the mouse trap device and first mouse storage box are used in the utility model.
[0027] Figure 5 It is the top schematic drawing when the mouse trap device and first mouse storage box are used in the utility model.
[0028] Figure 6 It is the axis measurement schematic drawing when the mouse trap device and second mouse storage box are used in the utility model.
[0029] Figure 7 It is the explosion schematic drawing when the mouse trap device and second mouse storage box are used in the utility model.
[0030] Figure 8 It is the partial schematic drawing of the assembly communication piece in the utility model.
[0031] The figure mark is:
[0032] 100, mouse trap device;111, mouse trapping space;112, movable capture door;113, inductive device;114, rotating piece;114.1, linkage arm;115, first bait bin;116, opening;120, first detection piece;
[0033] 200, mouse storage device; 210, first mouse storage box; 211, climbing opening; 212, climbing plate; 220, second mouse storage box; 230, mouse storage pipeline; 240, assembly communication piece; 241, connecting through hole; 242, sleeve piece; 242.1, mounting portion; 242.2, sleeve body; 243, clamp piece; 244, first one-way limiting plate; 244.2, first limiting plate body; 245, second one-way limiting plate; 245.1, second hinge; 245.2, second limiting plate body; 250, detection head;
[0034] 300, one-way passage device; 310, one-way passage; 311, one-way passage plate;
[0035] 400, mouse taking opening; 410, shielding plate. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0037] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0038] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0039] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.
[0040] Embodiment one of the utility model Figures 1-8As shown in the figure, it relates to a multi-form continuous mouse trap device, comprising a mouse trap device 100 and a mouse storage device 200, the mouse trap device 100 is provided with a mouse trap space 111, two sides of the mouse trap device are provided with movable capture doors 112, the bottom of the mouse trap device is provided with an induction device 113 and a driving member for driving the movable capture doors 112 to open or close, when the induction device 113 senses that there is a mouse in the mouse trap space 111, the driving member will drive the movable capture doors to close, when the induction device 113 senses that there is no mouse in the mouse trap space 111, the driving member will drive the movable capture doors to open; the mouse storage device 200 is provided with a mouse storage space which is communicated with the mouse trap space 111, the mouse storage space is provided with a one-way passage device 300, the one-way passage device is provided with a detection device, further, the induction device 113 can be an infrared sensor, specifically, when using the utility model, first, the induction device 113 does not sense that there is a mouse in the mouse trap space 111, at this time, the movable capture doors 112 are in an open state, when a mouse enters the mouse trap space 111 and is sensed by the induction device 113, the driving member will drive the movable capture doors 112 to close, so as to trap the mouse in the mouse trap space 111, when the mouse enters the mouse storage space through the one-way passage device 300 and cannot leave the mouse storage space through the one-way passage device 300, so as to be trapped in the mouse storage space, at this time, when the detection device detects that the mouse has entered the one-way passage device and cannot return to the original route, the movable capture doors 112 change from the closed state to the open state, waiting for the arrival of the next mouse, the mouse trap device 100 can quickly close the movable capture doors 112 after the mouse enters the mouse trap space 111 through the cooperation of the induction device 113 and the driving member, so as to effectively trap the mouse, the mouse storage device 200 is communicated with the mouse trap space 111, the trapped mouse can enter the mouse storage space through the one-way passage device 300, which is convenient for subsequent processing and cleaning, the design of the one-way passage device 300 makes the mouse only enter the mouse storage space and cannot return to the mouse trap space 111, so as to avoid the possibility of the mouse escaping.
[0041] In the embodiment, the driving member comprises a driving motor (not shown in the figure), a rotating member 114 driven to rotate by the driving motor, a linkage arm 114.1 linked to the movable capture doors to open or close the movable capture doors driven by the rotating member 114, further, the driving motor can be quickly started and stopped, so as to realize the quick opening and closing of the movable capture doors and improve the mouse trapping efficiency.
[0042] Reference Figures 1-5In the embodiment, the mouse storage device 200 comprises a first mouse storage box 210 arranged on the top of the mouse trapping device 100, the first mouse storage box 210 comprises a climbing opening 211 connected with the mouse trapping space 111, and a climbing plate 212 is arranged below the climbing opening 211 to facilitate the mouse to climb from the mouse trapping space 111 to the first mouse storage box 210. In the embodiment, the mouse storage space is arranged in the first mouse storage box 210.
[0043] Referring to Figures 1-5 In the embodiment, the detection device comprises a first detection member 120, the one-way passage device 300 comprises a one-way passage 310, the one-way passage 310 is arranged in the first mouse storage box 210, at least one one-way passage plate 311 is arranged in the one-way passage 310, the first detection member 120 is arranged in the one-way passage 310 and is used to detect whether the mouse has passed through the first one-way passage plate, the one-way passage plate 311 can allow the mouse to pass through in the forward direction and does not allow the mouse to pass through in the reverse direction after passing through the one-way passage plate 311 in the forward direction, and the first detection member can be a touch sensor.
[0044] Referring to Figures 1-5 In the embodiment, one side of the one-way passage 310 is provided with a first bait bin 115, and an opening 116 is arranged on the side wall of the one-way passage 310 and is connected with the first bait bin 115. Further, the arrangement of the bait bin can attract the mouse to come to eat, when the mouse is attracted by the bait and enters the one-way passage 310 through the opening 116, the mouse can only move forward and cannot return due to the design of the one-way passage plate 311, so the mouse is more likely to be guided into the mouse trapping device 100 or the mouse storage device 200, thereby improving the efficiency of mouse trapping, and the opening 116 arranged on the side wall of the one-way passage 310 and connected with the first bait bin 115 can facilitate the smell of the bait to spread to the one-way passage 310, thereby increasing the probability of attracting the mouse.
[0045] Referring to Figures 1-5In the embodiment, the side wall of the first mouse storage box 210 is provided with a mouse taking opening 400 and a shielding plate 410 for shielding the mouse taking opening 400. The mouse taking opening 400 is in communication with the bait warehouse, and the bait in the bait warehouse can be added or taken out through the mouse taking opening 400. Further, when a certain number of mice are captured by the mouse trapping device 100, the operator can take out the captured mice through the mouse taking opening 400 by opening the shielding plate 410 and clean them up. The design that the mouse taking opening 400 is in communication with the bait warehouse enables the operator to easily add bait to the bait warehouse or replace the bait that has been consumed or deteriorated through the mouse taking opening 400, which not only improves the use efficiency of the mouse trapping device 100, but also ensures that there is enough bait in the bait warehouse to attract mice. The shielding plate 410 can shield the mouse taking opening 400, so that the mouse trapping device 100 is more concealed in appearance, which helps to reduce the alertness of the mice to the mouse trapping device 100 and makes it easier for them to fall into the trap. In addition, the shielding plate 410 can also prevent external environment from interfering with the inside of the mouse trapping device 100, such as wind blowing and rain.
[0046] In Embodiment Two, referring to Figures 4-8 , the mouse storage device 200 includes a second mouse storage box 220 and a mouse storage pipeline 230. The side wall of the mouse trapping device and the side wall of the second mouse storage box 220 are both provided with an assembly communication member 240 for assembly and in communication with the mouse storage pipeline 230. Further, the first mouse storage box 210 can be cancelled, and the second mouse storage box 220 is used. When the mouse trapping device captures mice, the mice will tend to move to the second mouse storage box 220 through the mouse storage pipeline 230 due to their nature of burrowing, which avoids the long stay of mice in the mouse trapping device, so that they emit a special smell to remind their companions of danger, which is recognized by other mice, causing other mice to avoid approaching the mouse trapping device due to the perception of the special smell.
[0047] In the embodiment, the assembly communication member 240 includes a connecting through hole 241 and a sleeve member 242. The sleeve member 242 includes a mounting portion 242.1 detachably connected with the side wall of the mouse trapping device or the side wall of the second mouse storage box 220 and a sleeve body 242.2 penetrating in the connecting through hole 241. The mouse storage pipeline 230 is sleeved on the outer side wall of the sleeve body 242.2 and is fixedly connected through a clamp member 243. The mounting portion 242.1 of the sleeve member 242 is detachably connected with the side wall of the mouse trapping device or the second mouse storage box 220, so that the assembly of the mouse storage pipeline 230 with the mouse trapping device or the second mouse storage box 220 can be easily realized.
[0048] Referring to Figures 4-7In the embodiment, the inner side wall of the sleeve 242 arranged on the mouse trap is provided with a first one-way limiting plate 244 which allows the mouse to enter the mouse storage channel 230 in one direction, and the inner side wall of the sleeve 242 arranged on the second mouse storage box 220 is provided with a second one-way limiting plate 245 which allows the mouse to enter the second mouse storage box 220 from the mouse storage channel 230 in one direction. Further, the first one-way limiting plate 244 allows the mouse to enter the mouse storage channel 230 in one direction, and the second one-way limiting plate 245 allows the mouse to enter the second mouse storage box 220 from the mouse storage channel 230 in one direction, so that once the mouse enters the mouse storage channel 230, it cannot return to the original path, but can only enter the second mouse storage box 220 along the mouse storage channel 230, and cannot return to the mouse storage channel after entering the second mouse storage box 220, thereby avoiding the escape of the mouse. In some embodiments, the second storage box is also provided with a bait storage bin and a mouse taking opening 400. In the embodiment, the mouse storage space is arranged in the second mouse storage box, and the detection device includes a second detection member which includes a detection seat (not shown in the figure) and a detection head 250. The detection seat is arranged in the mouse trap, and the detection head 250 is arranged on the top of the first one-way limiting plate. The detection seat and the detection head 250 can cooperate to detect whether the mouse triggers the first one-way limiting plate to enter the mouse storage channel. When the mouse triggers the first one-way limiting plate to enter the mouse storage channel, the detection seat sends a signal to open the movable trap door. The detection seat is a Hall sensor, and the detection head is a magnet.
[0049] Referring to Figures 4-7 In the embodiment, the first one-way limiting plate 244 includes a first hinge (not shown in the figure) connected to the inner side wall of the sleeve 242, and a first limiting plate body 244.2 connected to the first hinge. The second one-way limiting plate 245 includes a second hinge 245.1 connected to the inner side wall of the sleeve 242, and a second limiting plate body 245.2 connected to the second hinge 245.1. Further, the first one-way limiting plate 244 and the second one-way limiting plate 245 are connected to the sleeve 242 through the hinges, so that the limiting plates can be flexibly opened and closed, allowing the mouse to smoothly pass in a specific direction, and being effectively blocked in the opposite direction.
[0050] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall fall within the protection scope of the appended claims of the present utility model.
Claims
1. A multi-form continuous mousetrap, characterized in that, The utility model provides a mouse trap device and a mouse storage device, and the mouse trap device and the mouse storage device are connected through a one-way passage device. The mouse trap device comprises a mouse trap space (111), two movable trap doors (112) arranged on two sides of the mouse trap device, a sensing device (113) arranged at the bottom of the mouse trap device, and a driving member for driving the movable trap doors (112) to open or close. The mouse storage device comprises a mouse storage space connected with the mouse trap space (111), and a one-way passage device (300) arranged in the mouse storage space. The mouse storage device comprises a second mouse storage box (220) and a mouse storage pipeline (230), and the sidewall of the mouse trap device and the sidewall of the second mouse storage box (220) are both provided with an assembly communication member (240) for assembly and communication with the mouse storage pipeline (230).
2. The multi-form continuous mousetrap of claim 1, wherein, The driving member comprises a driving motor, a rotating member (114) driven to rotate by the driving motor, and a linkage arm (114.1) driven by the rotating member (114) to link the movable trap doors (112) to open or close.
3. The multi-form continuous mousetrap of claim 1, wherein, The mouse storage device comprises a first mouse storage box (210) arranged on the top of the mouse trap device (100), and the first mouse storage box (210) comprises a climbing opening (211) connected with the mouse trap space (111).
4. The multi-form sequential mousetrap of claim 3, wherein, The detection device comprises a first detection member (120), the one-way passage device (300) comprises a one-way passage (310) arranged in the first mouse storage box (210), and the one-way passage (310) is provided with at least one one-way passage plate (311), the first detection member (120) is arranged in the one-way passage (310) and used for detecting whether a mouse has passed through the first one-way passage plate (311), and the one-way passage plate (311) can allow the mouse to pass through in a forward direction and does not allow the mouse to pass through in a reverse direction.
5. The multi-form sequential mousetrap of claim 4, wherein, One side of the one-way passage (310) is provided with a first bait bin (115), and the sidewall of the one-way passage (310) is provided with an opening (116) connected with the first bait bin (115).
6. The multi-form sequential mousetrap of claim 5, wherein, The sidewall of the first mouse storage box (210) is provided with a mouse taking opening (400) and a shielding plate (410) used for shielding the mouse taking opening (400), the mouse taking opening (400) is connected with the bait bin, and bait in the bait bin can be added or taken out through the mouse taking opening (400).
7. The multi-form sequential mousetrap of claim 1, wherein, The assembly communication piece (240) comprises a connecting through hole (241) and a sleeve piece (242), the sleeve piece (242) comprises a mounting part (242.1) detachably connected with the side wall of the mouse trap or the side wall of the second mouse storage box (220) and a sleeve body (242.2) penetrating in the connecting through hole (241), the mouse storage pipeline (230) is sleeved on the outer side wall of the sleeve body (242.2) and is fixedly connected through a clamp piece (243).
8. The multi-form sequential mousetrap of claim 7, wherein, A first one-way limiting plate (244) allowing one-way entry into the mouse storage pipeline (230) is arranged on the inner side wall of the sleeve piece (242) arranged on the mouse trap, a second one-way limiting plate (245) allowing one-way entry from the mouse storage pipeline (230) into the second mouse storage box (220) is arranged on the inner side wall of the sleeve piece (242) arranged on the second mouse storage box (220), the detection device comprises a second detection piece, the second detection piece comprises a detection seat and a detection head (250), the detection seat is arranged in the mouse trap, the detection head (250) is arranged on the top of the first one-way limiting plate, and the detection seat and the detection head (250) can cooperate to detect whether the mouse triggers the first one-way limiting plate to enter the mouse storage pipeline.
9. The multi-form sequential mousetrap of claim 8, wherein, The first one-way limiting plate (244) comprises a first hinge connected with the inner side wall of the sleeve piece (242) and a first limiting plate body (244.2) connected with the first hinge, and the second one-way limiting plate (245) comprises a second hinge (245.1) connected with the inner side wall of the sleeve piece (242) and a second limiting plate body (245.2) connected with the second hinge (245.1).