A pipe trap
By designing a pipe-type rat trap, and using push-pull electromagnets and infrared sensors to control the closing components, the problem of existing rat traps being unable to fit and attract rats in narrow pipes on construction sites has been solved, achieving the effect of efficiently capturing rats drilling in construction sites.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-07
AI Technical Summary
Existing mousetraps are not suitable for narrow pipes on construction sites and cannot attract mice that crawl through pipes, thus failing to effectively catch mice.
Design a pipe-type mouse trap, which uses a support frame and a mouse-catching tube. The closing assembly is controlled by a push-pull electromagnet and an infrared sensor. By setting a support plate and a push-pull electromagnet on the side of the support frame, the support plate and the electromagnet cooperate to open the closing assembly. The top plate is controlled by a spring and an infrared sensor to fall and close the mouse-catching window, thus catching the mouse.
It enables effective capture of drilling rats in narrow pipes on construction sites, improving rat-catching efficiency and applicability, and adapting to construction site environments.
Smart Images

Figure CN224460966U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rat-catching technology, and in particular to a rat-catching device. Background Technology
[0002] Construction sites, with their numerous pipes, attract a large number of rats that love to burrow into them. These rats not only crawl in and out of the pipes but also gnaw on them, causing damage and disrupting normal construction work.
[0003] Although there are many existing mousetraps, most of them are box-type or clamp-type structures. Not only are their sizes and shapes unsuitable for the narrow inner diameter of construction site pipes (usually 50-100mm), but the limited space inside the pipes also prevents the triggering mechanism from functioning properly. Furthermore, they fail to attract rats that like to crawl into pipes on construction sites.
[0004] For example, Chinese utility model patent CN 205018147 U, published on February 10, 2016, discloses a mousetrap, which includes a base plate, a contact plate hinged to the base plate, a movable plate hinged to the base plate via a hinge shaft, and a clamping plate hinged to the base plate via a hinge shaft; one end of the clamping plate is provided with a pressing part that lifts up the other end of the clamping plate, and the other end of the movable plate abuts against the base plate; the movable plate is disposed between the base plate and the clamping plate, and one end of the movable plate is provided with an abutting part, the edge of which is provided with a slot for the contact plate to pass through; one end of the contact plate abuts against the abutting part, and the other end is provided with a hook; the clamping plate is provided with a locking post that engages with the hook; a food storage tube is integrally formed on the base plate, and a guardrail is provided on the other edge of the movable plate, and a through hole is provided in the middle for the food storage tube to pass through. This utility model patent describes a mousetrap where the bait is placed inside a storage tube to prevent movement due to the opening or closing of the clamp, thus improving its effectiveness and efficiency in catching mice. However, this clamp-type mousetrap is not well-suited to the narrow inner diameter of construction site pipes in terms of shape, size, and triggering mechanism, and it fails to attract mice that like to crawl through pipes on construction sites. Summary of the Invention
[0005] To address the aforementioned technical problems, this utility model proposes a pipe-type rat trap to solve the problems that existing rat traps cannot be adapted to the narrow inner diameter of construction site pipes in terms of shape and size, cannot operate normally due to space limitations inside the pipes, and cannot attract rats that like to crawl into pipes on construction sites.
[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0007] A pipe-type rat trap includes a support frame and a rat-trapping tube fixed to the support frame. The front of the rat-trapping tube has a rat-entry window. A closing component for closing the rat-entry window is hinged to the top of the support frame or the rat-trapping tube. A support plate is connected to the side of the closing component. A push-pull electromagnet on the support frame can engage with the support plate to open the closing component. This invention, by setting a pipe-type rat-trapping cavity and placing bait in the cavity, attracts rats that like to crawl through pipes, making it more suitable for rat trapping on construction sites. By setting a support plate on the side of the support frame and installing a push-pull electromagnet on the support frame, one end of the support plate is connected to the closing component, and the other end of the support plate can engage with the push-pull electromagnet, so that when the support plate is stuck on the extended push-pull electromagnet, the closing component is opened. When the push-pull electromagnet retracts, the top plate falls, causing the closing component to close, trapping the rat that has entered the rat-trapping cavity.
[0008] Furthermore, the closure assembly includes a top plate hinged to the top of the support frame and a front door panel connected to the top plate, the front door panel engaging with the mouse inlet window.
[0009] Furthermore, in order to better accommodate the mouse-entry window, the main door panel is an arc-shaped panel that fits into the mouse-entry window.
[0010] Furthermore, in order to enable the top plate to fall quickly and close the main door panel to enter the mouse window, a spring is connected between the top plate and the support frame.
[0011] Furthermore, in order to facilitate the insertion of the telescopic rod of the push-pull electromagnet, the support plate is provided with a notch for the telescopic rod of the push-pull electromagnet to pass through.
[0012] Furthermore, in order to allow the support plate to swing within a certain range and to more easily engage with the telescopic rod of the push-pull electromagnet through the notch, the upper end of the support plate is hinged to the top plate.
[0013] Furthermore, in order to ensure that the support plate can only swing within a certain range, the outer side of the support frame is provided with a limiting member for limiting the support plate. The limiting member has a through hole for the support plate to pass through, and the support plate is fitted with the through hole with a clearance so that the limiting member does not obstruct the opening and closing of the closing assembly.
[0014] Furthermore, in order to more accurately capture rats entering the pipe, infrared sensors are respectively installed on the support frame near the rat-entry window and near the center line of the rat-catching tube. The support frame is also equipped with a controller, the input end of which is connected to the infrared sensor and the output end of which is connected to a push-pull electromagnet to control the extension and retraction of the push-pull electromagnet.
[0015] Furthermore, in order to remove the captured rats, a rat-removal door is provided on the back of the rat-removal tube, with one end of the rat-removal door hinged to the rat-removal tube and the other end locked to the rat-removal tube.
[0016] Furthermore, in order to improve the stability of the support frame, the support frame includes parallel and spaced trapezoidal side plates and a base plate connected between the two trapezoidal side plates; the mouse trap is vertically fixed between the two trapezoidal side plates.
[0017] The beneficial effects of this utility model are:
[0018] 1. This utility model, by setting up a pipe-type rat trapping cavity and placing bait in the cavity, attracts rats that like to crawl into pipes, making it more suitable for rat trapping on construction sites;
[0019] 2. This utility model involves setting a support plate on the outside of a support frame, inserting a push-pull electromagnet through the support frame, connecting one end of the support plate to a top plate hinged to the support frame, and fixing the front door of the mouse trap cavity to the top plate; the other end of the support plate can engage with the push-pull electromagnet to prevent it from opening when the support plate is engaged with the extended push-pull electromagnet; when the push-pull electromagnet retracts, the top plate falls and closes the front door, trapping the mouse that has entered the mouse trap cavity.
[0020] 3. This utility model sets up two infrared sensors. When the infrared sensor at the door is triggered and loses its signal, the infrared sensor inside is triggered at the same time. The controller controls the push-pull electromagnet to retract based on this signal, thereby closing the front door panel.
[0021] 4. This utility model adds a spring between the outside of the support frame and the top plate. When the front door is opened, the spring is stretched, so that when the push-pull electromagnet retracts, the support plate loses its blocking function, and the top plate can fall down quickly and automatically, increasing the practicality of the mouse trap. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a side view of the structure of this utility model;
[0025] Figure 3 This is a side view of the structure of Embodiment 3 of this utility model.
[0026] In the diagram: 1. Support frame, 2. Mouse trap, 21. Mouse entry window, 3. Light-emitting diode, 4. Main door panel, 5. Mouse retrieval door, 6. Top panel, 7. Push-pull electromagnet, 71. Telescopic rod, 8. Infrared sensor, 9. Support plate, 10. Spring, 11. Limiting component. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] like Figure 1 As shown in Embodiment 1 of this utility model, a pipe-type mousetrap includes a support frame 1 and a mousetrap tube 2 fixed to the support frame 1. The mousetrap tube 2 is a commonly used pipe on construction sites, and both ends of the pipe are closed by the support frame 1. A mouse-entry window 21, larger than the mouse's body, is cut out on the upper front of the mousetrap tube 2. In this embodiment, the mouse-entry window 21 is a rectangular window with a rectangular shape in both top and side views. A closing component for closing the mouse-entry window 21 is hinged to the top of the support frame 1 or the mousetrap tube 2.
[0029] Furthermore, the closure assembly includes a top plate 6 hinged to the top of the support frame 1 and a front door panel 4 connected to the top plate 6, the front door panel 4 cooperating with the mouse entry window 21. Each of the top two sides of the rear end of the support frame 1 is connected to a fixing block, the upper end of which is provided with a transverse pivot, and the two pivots on both sides are coaxially arranged. The two pivots pass through the rear ends of both sides of the top plate 6, causing the top plate 6 to be hinged to the support frame 1.
[0030] Furthermore, such as Figure 2 As shown, the main door panel 4 is an arc-shaped panel that fits into the mouse-entry window 21. In this embodiment, the part cut off when cutting the mouse-entry window 21 of the mouse-catching tube 2 is used. The smaller width of the edges around this part is removed to serve as the main door panel 4. This not only allows the main door panel 4 to fit the shape of the mouse-entry window 21, but also uses locally available materials, saving costs and manufacturing time.
[0031] Furthermore, such as Figure 2As shown, a support plate 9 is connected to the side of the closing assembly to support the top plate 6, thereby opening the front door panel 4. In this embodiment, the support plate 9 is set in the vertical plane and fits against the outer side of the support frame 1. The support frame 1 is provided with a push-pull electromagnet 7 that can cooperate with the support plate 9 to open the closing assembly, thereby opening the mouse entry window 21. The telescopic rod 71 of the push-pull electromagnet 7 passes through the side of the support frame 1, and the lower part of the support plate 9 is provided with a latch for locking onto the telescopic rod. When the closing assembly is opened, the support plate 9 supports the top plate, and the telescopic rod of the push-pull electromagnet 7 extends and locks into the latch of the support plate 9, so that the top plate is stably supported. When you want to close the mouse entry window 21, control the telescopic rod of the push-pull electromagnet 7 to retract, the top plate falls and drives the front door panel 4 to close the mouse entry window 21.
[0032] Furthermore, such as Figure 2 As shown, a spring 10 is connected between the top plate 6 and the support frame 1. The spring 10 is stretched when the closing component is raised, so that the top plate falls quickly when the mouse is caught, causing the front door to close and enter the mouse window.
[0033] Example 2 differs from Example 1 in that, as Figure 2 As shown, a notch is provided on one side of the support plate 9 for the telescopic rod 71 of the push-pull electromagnet 7 to pass through as a locking slot, so that the support plate 9 can be easily locked onto the telescopic rod of the push-pull electromagnet 7 after moving in the vertical plane.
[0034] Example 3 differs from Example 2 in that, as Figure 2 As shown, the upper end of the support plate 9 is hinged to the top plate 6, which makes the support plate more flexible and easier to control it to be locked onto the telescopic rod 71 of the push-pull electromagnet 7 through the notch, and reduces the difficulty of setting the position of the push-pull electromagnet 7.
[0035] Furthermore, the outer side of the support frame 1 is provided with a limiting member 11 for limiting the support plate 9. The limiting member has a through hole through which the support plate 9 passes. The support plate 9 is clearance-fitted with the through hole so that the limiting member 11 does not obstruct the opening and closing of the closure assembly. Specifically, as shown... Figure 2 As shown, the limiting component is a rectangular plate with a rectangular groove recessed to one side in the middle. The width and depth of the rectangular groove are both greater than the width and thickness of the support plate 9. The two ends of the plate are fixed to the sides of the support frame 1, and a gap, i.e., a through hole, is formed between the recessed part and the support frame 1 for the support plate 9 to pass through. The size of the gap does not prevent the support plate 9 from supporting the closing component or from closing the mouse inlet window 21, while also limiting the swing amplitude of the support plate 9 from being too large, which would cause the notch to disengage from the telescopic rod 71. At the same time, the inside of the notch is inclined upwards, and the notch is diagonally stuck on the telescopic rod 71. The downward pressure of the closing component and the downward tension of the spring prevent the notch from disengaging from the extended telescopic rod 71.
[0036] Example 4 differs from Example 2 in that, as Figure 2 As shown, infrared sensors 8 are respectively installed on the support frame 1 near the mouse-entry window 21 and near the center line of the mouse-trapping tube 2. The support frame 1 is equipped with a controller. The input end of the controller is connected to the infrared sensor 8, and the output end is connected to the push-pull electromagnet 7 to control the extension and retraction of the push-pull electromagnet 7. When the infrared sensor at the door is triggered and then loses its signal, that is, it detects a mouse and then disappears, while the internal infrared sensor detects a mouse and is triggered, it means that the mouse has completely entered the mouse-trapping tube 2. Based on this signal, the controller controls the push-pull electromagnet to retract, which causes the support plate to drive the top plate to fall, thereby causing the main door panel 4 to close the mouse-entry window 21.
[0037] Furthermore, such as Figure 1 and Figure 2 As shown, to reduce costs, an inexpensive infrared sensor is used. This invention employs a low-cost, separate sensor. In this embodiment, an HS0038 infrared sensor is used in conjunction with an IR LED. Specifically, an HS0038 infrared sensor 8 is installed on the support frame 1 at one end of the mouse trap 2, near the mouse inlet window 21, and near the center line of the mouse trap 2, respectively. An IR LED 3 is installed at a corresponding position on the other end. Furthermore, a power module is installed on the support frame 1, connected to a push-pull electromagnet and a controller for power supply.
[0038] The controller, infrared sensor 8, push-pull electromagnet 7, and LED all utilize existing, low-cost technologies. In this embodiment, the controller can be an enhanced 51 microcontroller (STC8H1K08-36I-TSSOP20), the infrared sensor 8 is an HS0038 type infrared sensor, and the LED is an IR LED compatible with the infrared sensor. The enhanced 51 microcontroller is connected to the push-pull electromagnet 7 via a 5V relay module. Furthermore, to ensure that the light from the IR LED does not affect the mouse, an IR LED with a wavelength of 940nm is selected.
[0039] Example 5 differs from Example 1 in that, as Figure 1As shown, the back of the mouse trap tube 2 is provided with a small mouse-catching door 5. One end of the small mouse-catching door 5 is hinged to the mouse trap tube 2, and the other end of the small mouse-catching door 5 can be opened and closed. A lock is provided between this end of the small mouse-catching door 5 and the mouse trap tube 2. The lock uses a common type of lock found in the prior art. Specifically, the lock plate includes a lock plate with a hole and a lock ring that can pass through the lock plate. The lock plate is hinged to one of the small mouse-catching door 5 and the mouse trap tube 2, and the lock ring is fixed to the other. Alternatively, a pin and a matching pin can be used as the lock, with the pin and the matching pin connected to the small mouse-catching door 5 and the mouse trap tube 2 respectively.
[0040] Example 6 differs from Example 1 in that, as Figure 1 As shown, the support frame 1 includes parallel and spaced trapezoidal side plates and a base plate connected between the two trapezoidal side plates; the mouse trap tube 2 is vertically fixed between the two trapezoidal side plates, so that the trapezoidal side plates close the two ends of the mouse trap tube, thereby improving the stability of the mouse trap tube.
[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions of some or all of the technical features therein, within the spirit and principles of the present utility model, shall not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model, and shall all be included within the protection scope of the present utility model.
Claims
1. A pipe trap comprising: It includes a support frame (1) and a mouse trap (2) fixed on the support frame (1). The front of the mouse trap (2) is provided with a mouse entry window (21). The top of the support frame (1) or the mouse trap (2) is hinged with a closing component for closing the mouse entry window (21). The side of the closing component is connected to a support plate (9). The support frame (1) is provided with a push-pull electromagnet (7) that can cooperate with the support plate (9) to open the closing component.
2. The pipe mousetrap of claim 1, wherein: The closing assembly includes a top plate (6) hinged to the top of the support frame (1) and a front door plate (4) connected to the top plate (6), the front door plate (4) cooperating with the mouse inlet window (21).
3. A pipe mousetrap according to claim 2, characterised in that: The main door panel (4) is an arc-shaped panel that fits into the mouse-entry window (21).
4. A pipe mousetrap according to claim 2 or 3, characterised in that: A spring (10) is connected between the top plate (6) and the support frame (1).
5. A pipe mousetrap according to claim 2 or 3, characterised in that: The support plate (9) is provided with a notch for the telescopic rod (71) of the push-pull electromagnet (7) to pass through.
6. A pipe mousetrap according to claim 2 or 3, characterised in that: The upper end of the support plate (9) is hinged to the top plate (6).
7. A pipe mousetrap according to claim 6, characterised in that: The support frame (1) is provided with a limiting member (11) for limiting the support plate (9) on the outside. The limiting member is provided with a through hole for the support plate (9) to pass through. The support plate (9) is fitted with the through hole with a gap so that the limiting member does not obstruct the opening and closing of the closing assembly.
8. A pipe mousetrap according to any one of claims 1 to 3 and 7, wherein: Infrared sensors (8) are respectively provided on the support frame (1) near the mouse inlet window (21) and near the center line of the mouse trap (2). The support frame (1) is equipped with a controller. The input end of the controller is connected to the infrared sensor (8), and the output end is connected to the push-pull electromagnet (7) to control the extension and retraction of the push-pull electromagnet (7).
9. The pipe mousetrap of any of claims 1-3 and 7, wherein: The back of the rat trap (2) is provided with a rat catching door (5), one end of which is hinged to the rat trap (2) and the other end is locked to the rat trap (2).
10. The pipe mousetrap of any of claims 1-3 and 7, wherein: The support frame (1) includes parallel and spaced trapezoidal side plates and a base plate connected between the two trapezoidal side plates; the mouse trap (2) is vertically fixed between the two trapezoidal side plates.