Biological trap

Abstract

The invention relates to a biological catching and killing device which comprises an operating handle, a power supply circuit and a catching mechanism, the catching mechanism comprises a plurality of fingers made of conductive materials, the operating handle is arranged on the catching mechanism to control the fingers to achieve the catching action, and the power supply circuit provides a power source for the fingers. According to the active capturing finger, the complete active capturing function is achieved, and the active capturing finger is more suitable for the market requirement.

Description

Technical Field

[0001] The present invention relates to a creature trap, and in particular to a device for catching and killing smaller creatures (such as spiders, caterpillars, cockroaches, centipedes, etc.) Background Art

[0002] Current cockroach catching devices are generally passive capture devices, such as the utility model "A Cockroach Catcher (Patent No. 202221012132.2) and "A Cockroach Catcher (Patent No. 202321197622.9)" published by the State Intellectual Property Office. These devices lure cockroaches into a box and prevent them from escaping, trapping them in the box to achieve the capture and killing function. However, they have no effect on walking or escaping cockroaches. Moreover, their structure is designed specifically for cockroaches and is difficult to be compatible with other small arthropods such as spiders, centipedes, and caterpillars. They have a single function and insufficient market adaptability. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned technical problems of the existing cockroach catching devices and to provide a multi-purpose biological killer.

[0004] The biological trap includes an operating handle, a power supply circuit and a capture mechanism. The capture mechanism includes a plurality of fingers made of conductive material. The operating handle is arranged on the capture mechanism to control the fingers to achieve a grasping action. The power supply circuit provides power to the fingers, and adjacent fingers respectively form positive and negative high-voltage electrodes of a high-voltage electric field.

[0005] Furthermore, the operating handle includes a handle body, a controller and a pulling member, the controller and the pulling member are arranged on the handle body, and the controller is used to control the pulling member to pull the capture mechanism; the power supply circuit is arranged in the operating handle or the capture mechanism, and the power supply circuit is used to provide power to the capture mechanism; the capture mechanism also includes a mounting seat, and each finger is mounted on the mounting seat through a movable member to form a gripper, and each finger forms a relative opening and closing movement under the action of the movable member. The operating handle is arranged on the mounting seat, and the pulling member is connected to the movable member of the capture mechanism. The operating handle controls the pulling member to pull the movable member on the mounting seat through the controller, and the movable member controls the movement of each finger to realize the gripping function of the gripper.

[0006] Furthermore, the mounting base is a shell, and a connector with a through hole is provided on one side of the mounting base to dock with the operating handle, and an opening is provided on the other side of the mounting base, and a fixing part with a mounting hole is provided at the opening. The fixing part fixes the movable part at the opening, and the gripper is installed on the movable part through the mounting hole.

[0007] Furthermore, the movable part is a circular block-shaped fixed part made of insulating elastic material. The movable part is limitedly installed at the opening of the mounting seat by the fixed part, and the center position of the movable part is connected to the pulling part of the operating handle, so that when the pulling part is pulled, the movable part is driven to bulge outward in a spherical shape and concave inward in a spherical shape, thereby driving the fingers of the gripper to open or tighten to realize the gripping function.

[0008] Furthermore, the plurality of fingers are installed on the movable part in a circular distribution with the center point of the movable part as a base point.

[0009] Furthermore, a plurality of finger mounting holes are distributed in a ring on the movable part, and one end of the finger is fixedly mounted on the movable part through the finger mounting hole.

[0010] Furthermore, the finger is provided with a guide swinging member, which is installed by setting limiting mounting holes at corresponding positions inside several finger mounting holes of the movable member, and is fixed on the movable member in cooperation with the finger, and force-bearing protrusions are respectively provided on both sides of the guide swinging member.

[0011] Furthermore, the finger is a long strip of conductive strip with a fixed head at one end, and the finger is fixed to the movable part through the fixed head and the guide swinging part.

[0012] Furthermore, the pulling member includes a traction rope, a return spring and a traction shaft. One end of the traction rope is connected to the controller, and the other end is connected to one end of the traction shaft. The other end of the traction shaft is connected to the movable member. The return spring is installed on the traction shaft and is limited in the mounting seat to control the return bulge of the movable member.

[0013] Furthermore, the gripper is provided with a protective body to prevent the creatures from escaping.

[0014] Furthermore, the guard body is a plurality of soft retaining bars fixed on the movable part, and the soft retaining bars are distributed in a ring around the outer side of the gripper.

[0015] Furthermore, the movable part and the protective body are an integrated structure, or the fixed part and the movable part are an integrated structure, or the fixed part, the movable part and the protective body are an integrated structure, or the mounting seat, the movable part and the protective body are an integrated structure.

[0016] Beneficial effects of the present invention:

[0017] 1. The present invention controls the capture mechanism through an operating handle to capture a variety of creatures, such as spiders, caterpillars, cockroaches, centipedes, etc., thereby realizing a fully active capture function, which is more suitable for market demand.

[0018] 2. The adjacent fingers of the present invention respectively form positive and negative high-voltage electrodes of a high-voltage electric field, thereby making it easier to kill organisms and avoiding direct killing with hands. The operation is simple and practical.

[0019] 3. The finger of the present invention is provided with a guide swinging member fixed to the movable member. Therefore, when the movable member bulges outward in a spherical shape or concave inward in a spherical shape, the guide swinging member enables the finger to swing better, thereby effectively improving the grasping function of the finger.

[0020] 4. The gripper of the present invention is provided with a protective enclosure, thereby effectively preventing the captured creatures from escaping easily, thereby improving the capturing function. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the main view of the structure of embodiment 1 of the present invention

[0022] Figure 2 for Figure 1 Top view of .

[0023] Figure 3 for Figure 1 AA cross-sectional view.

[0024] Figure 4 This is a structural stereogram of Example 1 of the present invention.

[0025] Figure 5 This is a structural diagram of the capture mechanism of Example 1 of the present invention.

[0026] Figure 6 Schematic diagram of the structure of the movable part of embodiment 1 of the present invention.

[0027] Figure 7 This is a schematic structural diagram of the guide swing member of Example 1 of the present invention.

[0028] Figure 8 This is a schematic diagram of the finger structure of Example 1 of the present invention.

[0029] Figure 9 This is a schematic diagram of the coordinated installation of the guide swing member and the finger in Example 1 of the present invention.

[0030] Figure 10 This is a schematic diagram of the installation of the mounting base, movable part, protective body and fixed part of Example 1 of the present invention.

[0031] Figure 11 This is a schematic diagram of the installation structure of Example 1 of the present invention.

[0032] Figure 12 This is a schematic diagram of the integrated structure of the movable part and the protective body of Example 2 of the present invention.

[0033] Figure 13This is a three-dimensional diagram of a movable part and a protective body installed on a mounting base through a fixing part in embodiment 2 of the present invention.

[0034] Figure 14 for Figure 13 Partial view.

[0035] Figure 15 for Figure 13 Exploded diagram of .

[0036] Figure 16 This is a schematic diagram of the integrated structure of the movable part and the fixed part of the structure of Example 3 of the present invention.

[0037] Figure 17 This is a three-dimensional diagram of a protective body according to embodiment 3 of the present invention installed on a mounting base via movable parts and fixed parts.

[0038] Figure 18 for Figure 17 Partial view.

[0039] Figure 19 for Figure 17 Exploded view of

[0040] Figure 20 This is a schematic diagram of the integrated structure of the guardrail, movable parts and fixed parts of the structure of Example 4 of the present invention.

[0041] Figure 21 This is a schematic diagram of the integrated structure of the guardrail, movable parts and mounting base of Example 5 of the present invention.

[0042] Figure 22 for Figure 21 Partial view. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below with reference to the accompanying drawings.

[0044] Example 1:

[0045] Reference Figure 1-11 The biological trap shown includes an operating handle 1, a power supply circuit 11 and a capture mechanism 2. The capture mechanism 2 includes a plurality of fingers 221 made of conductive material. The operating handle 1 is arranged on the capture mechanism 2 to control the fingers 221 to perform a grasping action. The power supply circuit 11 provides power to the fingers 221, and adjacent fingers 221 respectively form positive and negative high-voltage electrodes of a high-voltage electric field.

[0046] In the embodiment, the operating handle 1 includes a handle body 10, a controller 12 and a pulling member 13, the controller 12 and the pulling member 13 are arranged on the handle body 10, and the controller 12 is used to control the pulling member 13 to pull the capture mechanism 2; the power supply circuit 11 is arranged in the operating handle 1 or the capture mechanism 2, and the power supply circuit 11 is used to provide power to the capture mechanism 2; the capture mechanism 2 also includes a mounting seat 21, and each finger 221 is mounted on the mounting seat 21 through a movable member 23 to form a gripper 22, and each finger 221 forms a relative opening and closing movement under the active action of the movable member 23, the operating handle 1 is arranged on the mounting seat 21, and the pulling member 13 is connected to the movable member 23 of the capture mechanism 2, and the operating handle 1 controls the pulling member 13 through the controller 12 to pull the movable member 23 on the mounting seat 21, and the movable member 23 controls the movement of each finger 221 to realize the gripping function of the gripper 22.

[0047] Specifically, the handle body 10 includes a handheld portion 101 and a connecting portion 102, each of which is a shell structure. The handheld portion 101 serves as a handle, and the connecting portion 102 is a tube connecting the handheld portion 101 and the capture mechanism 2. The power supply circuit 11 includes a battery 111, an electrical switch 112, and a conductive wire 113. The battery 111 is installed within the handheld portion 101 of the handle body 10, while the electrical switch 111 is located outside the handheld portion 101. The battery 111 and electrical switch 112 can also be installed directly within the capture mechanism 2 to reduce the length of the conductive wire 113. One end of the conductive wire 113 is connected to the circuit output terminal of the battery 111, and the other end is connected to the capture mechanism 2 to provide power to the capture mechanism 2. The controller 12 includes a trigger 121, which is used to control the pulling member 13 to pull the capture mechanism 2. Specifically, the operating handle 1 pulls the pulling member 13 via the trigger 121 of the controller 12, and the pulling movement of the pulling member 13 controls the capture mechanism 2.

[0048] The capture mechanism 2 also includes a mounting base 21. Each finger 221 is mounted on the mounting base 21 via a movable member 23 to form a gripper 22. The gripper 22 is relatively open and closed by the movable member 23. Each finger 221 is connected to the power supply circuit 11, and adjacent fingers 221 form positive and negative high-voltage electrodes of a high-voltage electric field. During use, the high-voltage electric field is used to capture and kill various small organisms (such as spiders, caterpillars, cockroaches, centipedes, etc.). The mounting base 21 is made of a thermosetting or thermoplastic elastomer material.

[0049] The operating handle 1 is installed on the mounting seat 21 of the capture mechanism 2 through the connecting part 102, and the pulling member 13 is connected to the movable member 23 of the capture mechanism 2. The operating handle 1 controls the pulling member 13 through the trigger 121 of the controller 12 to pull the movable member 23 on the mounting seat 21, and the movable member 23 controls the movement of each finger 221 to realize the grasping function of the gripper 22.

[0050] The pulling member 13 includes a traction rope 131, a return spring 132 and a traction shaft 133. One end of the traction rope 131 is connected to the controller 12, that is, the trigger 121 of the controller 12, and the other end is connected to one end of the traction shaft 133. The other end of the traction shaft 133 is connected to the movable member 23. The return spring 132 is installed on the traction shaft 133 and is limited in the mounting seat 21 to control the movable member 23 to return and bulge. That is, when the return spring 132 returns under the limiting action in the mounting seat 21, it will push the movable member 23 to bulge outward in a spherical shape (convex) to drive the fingers 221 of the gripper 22 to open. The mounting base 21 is a shell, such as a trumpet-shaped shell. A connector 211 with a through hole 2111 is provided on one side of the mounting base 21 to dock with the operating handle 1. An opening 213 is provided on the other side of the mounting base 21. A fixing part 214 with a mounting hole 2141 is provided at the opening 213. The fixing part 214 fixes the movable part 23 at the opening 213, and the gripper 22 is installed on the movable part 23 through the mounting hole 2141.

[0051] Specifically, the return spring 132 and the traction shaft 133 of the pulling member 13 are arranged in the mounting seat 21, one end of the traction shaft 133 is fixed on the movable member 23, and the other end is located at the connecting head 211 of the mounting seat 21, and is connected to one end of the traction rope 131 through the through hole 2111 of the connecting head 211, and the other end of the traction rope 131 is connected to the trigger 121 of the controller 12 through the connecting part 102 of the operating handle 1. One end of the return spring 132 is subjected to force on the movable member 23, and the other end is located in the mounting seat 21, and is limited to be forced at the connecting head 211, forming a spherical arch (convex) state outward when the movable member 23 returns.

[0052] The fixing member 214 on the mounting seat 21 is a ring-shaped cover, and the fixing member 214 is screwed and installed at the opening 213 of the mounting seat 21. Figure 3 and Figure 5As shown, a threaded interface 2131 is provided at the opening 213 of the mounting seat 21, and the annular fixing member 214 is screwed and fixed with the interface 2131, and the gripper 22 is fixed on the movable member 23 through the mounting hole 2141 of the fixing member 214. The movable member 23 is pressed and fixed at the opening 213 of the mounting seat 21 by the fixing member 214, and the movable member 23 can be pulled by the pulling member 13 at the opening 213 to form a spherical bulge outward and a spherical concave state, which can be converted into each other. That is, when the pulling member 13 pulls the movable member 23 through the traction rope 131, the movable member 23 is in a spherical concave state at the opening 213. When the pulling member 13 stops pulling the movable member 23, the movable member 23 is in a spherical bulge outward at the opening 213 under the action of the return spring 132.

[0053] The movable part 23 is a circular block-shaped fixed part made of insulating elastic material. For example, the movable part 23 is made of thermosetting or thermoplastic elastomer material, specifically rubber material. The movable part 23 is limitedly installed at the opening 213 of the mounting seat 21 by the fixing part 214, that is, the fixing part 214 presses the edge position of the movable part 23 on the edge of the opening 213 of the mounting seat 21, so that the movable part 23 is limited and positioned at the opening 213 of the mounting seat 21, and the center position of the movable part 23 is connected to the pulling part 13 of the operating handle 1, so that the operating handle 1 can pull the pulling part 13 through the trigger 121 to drive the movable part 23, so that the movable part 23 can form a spherical bulge outward and a spherical concave inward, thereby driving the fingers 221 of the gripper 22 to open or tighten to realize the gripping function. Specifically, the center of the movable member 23 is connected to one end of the traction shaft 133, and the other end of the traction shaft 133 passes through the connector 211 on the mounting base 21 and is connected to the traction rope 131 of the pulling member 13. During use, the traction rope 131 is pulled by the trigger 121 of the operating handle 1, and the traction rope 131 pulls the traction shaft 133, driving the movable member 23 inward to form a spherical concave shape. At this time, the gripper 22 retracts the fingers 221 to enter a gripping state. When the trigger 121 of the operating handle 1 is released, the traction shaft 133, under the action of the return spring 132, pushes the movable member 23 outward to form a spherical bulge. At this time, the gripper 22 opens the fingers 221 to enter an open state ready for gripping.

[0054] The multiple fingers 221 are installed on the movable part 23 in a circular distribution with the center point of the movable part 23 as the base point. Specifically, the movable part 23 has a plurality of finger mounting holes 231 distributed in a circular manner, and one end of the finger 221 is fixedly installed on the movable part 23 through the finger mounting hole 231.

[0055] In order to better control the finger 221 to realize the grasping function on the movable part 23, the finger 221 is provided with a guide swinging member 2212, and the guide swinging member 2212 is installed by setting a limit mounting hole 2213 at a corresponding position inside the several finger mounting holes 231 of the movable part 23, and is fixed on the movable part 23 in cooperation with the finger 221, that is, the inner sides of the several finger mounting holes 231 of the movable part 23 are respectively provided with a limit mounting hole 2213, and the limit mounting holes 2213 correspond to the number of the finger mounting holes 231, and the guide swinging member 2212 is fixed on the movable part 23 through the limit mounting hole 2213 is installed on the movable part 23. In order to further improve the grasping function of the guide swinging part 2212 on the movable part 23 to drive the finger 221, a groove 2211 is provided at one end of the finger 221. The finger 221 is fixedly mounted on the finger mounting hole 231 through the groove 2211 and clamps the movable part 23. The finger 221 and the guide swinging part 2212 are respectively mounted on the finger mounting hole 231 and the limit mounting hole 2213, so that a certain distance is retained between the finger 221 and the guide swinging part 2212, thereby increasing the swinging angle of the finger 221 and improving the grasping performance of the finger 221. In order to better improve the swing performance of the guide swing member 2212 driven by the movable member 23, force-bearing protrusions 2214 are respectively provided on both sides of the guide swing member 2212. The force-bearing protrusions 2214 enable the guide swing member 2212 to better bear the force on the movable member 23 on both sides, thereby increasing the force of the guide swing member 2212 on the movable member 23, thereby further improving the swing performance of the finger 221. At the same time, in order to prevent the finger 221 from easily deviating from the position when grasping, the guide swing member 2212 is also provided with a fixing groove 2215, and the finger 221 is positioned on the guide swing member 2212 through the fixing groove 2215

[0056] The finger 221 is a long conductive strip with a fixed head 2215 at one end. The finger 221 is fixed to the movable part 23 through the fixed head 2215 and the guide swinging part 2212, and is connected to the conductive line 113 of the power supply circuit 11.

[0057] In order to further improve the killing function of the biological trap, the gripper 22 is also provided with a protective body 24 to prevent the escape of biological organisms. The protective body 24 is a plurality of soft baffles 241 fixed on the movable part 23. The baffles 241 are made of thermosetting or thermoplastic elastomer materials, such as nylon wire. The soft baffles 241 are distributed in a ring around the outside of the gripper 22, that is, a baffle 241 is provided on the outside of each finger 221. The baffle 241 is installed on the movable part 23. Specifically, the outer position of the gripper 22 on the movable part 23 is provided with assembly holes 2216 in a ring distribution. The baffles 241 are fixed to the movable part 23 through the assembly holes 2216. For ease of installation, the plurality of soft baffles 241 can be divided into several parts. Each baffle 241 is provided with a mounting head 2411 to fix each other, and then fixed to the assembly hole 2216 through the mounting head 2411. Figure 10 As shown, the blocking bar 241 forms a barrier layer on the outside of the gripper 22, forming a barrier in the distance (gap) between the fingers 221 that generate the high voltage electric field, thereby preventing the creatures (such as spiders, caterpillars, cockroaches, centipedes, etc.) from escaping from the distance (gap) of the gripper 22 when grasping the creatures.

[0058] Example 2:

[0059] like Figure 12-15 The biological trap shown in the figure has the following technical features: the movable part 23 and the protective body 24 are an integrated structure, that is, the movable part 23 and the protective body 24 (that is, a plurality of soft baffles 241) are integrally formed, and there is no need to set a mounting head 2411 on the baffle 241. During installation, the traction shaft 133, the finger 221 and the guide swinging member 2212 and other related components are installed on the movable part 23, and the traction shaft 133, the finger 221 and the guide swinging member 2212 are located in the protective body 24, and then the movable part 23 is limited and fixed on the mounting seat 21 by the fixing member 214. The rest is the same as the above embodiment 1.

[0060] Example 3:

[0061] like Figure 16-19 The biological trap shown in the figure has the following technical features: the fixed part 214 and the movable part 23 are an integrated structure, and a groove 2217 is provided between the fixed part 214 and the movable part 23, so as to improve the performance of the movable part 23 in bulging outwardly or concave inwardly. When in use, the protective body 24 (i.e., a plurality of soft baffles 241), the traction shaft 133, the finger 221 and the guide swinging part 2212 and other related parts are installed on the movable part 23, and then installed on the mounting base 21 through the fixed part 214. The rest is the same as the above embodiment 1.

[0062] Example 4:

[0063] like Figure 20 The biological trap shown in the figure has the following technical features: the fixed part 214, the movable part 23 and the protective body 24 are an integrated structure. When in use, the traction shaft 133, the finger 221 and the guide swinging part 2212 and other related parts are installed on the movable part 23, and then fixed to the mounting base 21 with the fixed part 214. Its structure is simpler and more convenient to install, and the rest is the same as the above embodiment 1.

[0064] Example 5:

[0065] like Figure 21-22 The biological trap shown in this embodiment has the following technical features: the mounting base 21, movable member 23 and protective body 24 are an integrated structure. When in use, the pulling member 13, each finger 221 and the guide swing member 2212 are respectively installed on the movable member 23 through the through hole 2111 of the connecting head 211 on the mounting base 21. For example, the pulling member 13 is connected to the central through hole of the movable member 23, each finger 221 is installed in the finger mounting hole 231, and each guide swing member 2212 is installed in the limit mounting hole 2213. The rest is the same as the above embodiment 1.

Claims

1. A biological trap, characterized by: The invention comprises an operating handle (1), a power supply circuit (11) and a capture mechanism (2); the capture mechanism (2) comprises a plurality of fingers (221) made of a conductive material; the operating handle (1) is arranged on the capture mechanism (2) to control the fingers (221) to achieve a grasping action; the power supply circuit (11) provides power to the fingers (221); and adjacent fingers (221) respectively form positive and negative high-voltage electrodes of a high-voltage electric field.

2. The bio-killer according to claim 1, characterized in that: The operating handle (1) comprises a handle body (10), a controller (12) and a pulling member (13); the controller (12) and the pulling member (13) are arranged on the handle body (10); the controller (12) is used to control the pulling member (13) to pull the capturing mechanism (2); The power supply circuit (11) is provided in the operating handle (1) or the capture mechanism (2), and the power supply circuit (11) is used to provide power to the capture mechanism (2); The capture mechanism (2) further comprises a mounting seat (21), and each finger (221) is mounted on the mounting seat (21) via a movable member (23) to form a gripper (22), and each finger (221) forms a relative opening and closing movement under the action of the movable member (23). The operating handle (1) is arranged on the mounting seat (21), and the pulling member (13) is connected to the movable member (23) of the capture mechanism (2). The operating handle (1) controls the pulling member (13) through the controller (12) to pull the movable member (23) on the mounting seat (21), and the movable member (23) controls the movement of each finger (221) to realize the grasping function of the gripper (22).

3. The bio-killer according to claim 2, characterized in that: The mounting seat (21) is a shell. A connector (211) with a through hole (2111) is provided on one side of the mounting seat (21) for docking with the operating handle (1). An opening (213) is provided on the other side of the mounting seat (21). A fixing member (214) with a mounting hole (2141) is provided at the opening (213). The fixing member (214) fixes the movable member (23) at the opening (213). The gripper (22) is mounted on the movable member (23) through the mounting hole (2141).

4. The bio-killer according to claim 3, characterized in that: The movable member (23) is a circular block-shaped fixed member made of insulating elastic material. The movable member (23) is limitedly mounted at the opening (213) of the mounting seat (21) through a fixed member (214), and the center position of the movable member (23) is connected to the pulling member (13) of the operating handle (1), so that when the pulling member (13) is pulled, the movable member (23) is driven to swell outwards in a spherical shape and to concave inwards in a spherical shape, thereby driving the fingers (221) of the gripper (22) to open or tighten to realize the gripping function.

5. The bio-killer according to claim 4, characterized in that: The plurality of fingers (221) are installed on the movable part (23) in a circular distribution with the center point of the movable part (23) as a base point.

6. The bio-killer according to claim 5, characterized in that: A plurality of finger mounting holes (231) are distributed in a ring shape on the movable part (23), and one end of the finger (221) is fixedly mounted on the movable part (23) through the finger mounting hole (231).

7. The bio-killer according to claim 6, characterized in that: The finger (221) is provided with a guide swinging member (2212). The guide swinging member (2212) is installed by providing a limit mounting hole (2213) at a corresponding position inside a plurality of finger mounting holes (231) of the movable member (23). The guide swinging member (2212) cooperates with the finger (221) to be fixed on the movable member (23). Force-bearing protrusions (2214) are provided on both sides of the guide swinging member (2212). The finger (221) is a long strip-shaped conductive strip with a fixed head (2215) provided at one end. The finger (221) is fixed on the movable member (23) by cooperating with the guide swinging member (2212) through the fixed head (2215).

8. The bio-killer according to claim 8, characterized in that: The pulling member (13) includes a traction rope (131), a return spring (132) and a traction shaft (133). One end of the traction rope (131) is connected to the controller (12), and the other end is connected to one end of the traction shaft (133). The other end of the traction shaft (133) is connected to the movable member (23). The return spring (132) is installed on the traction shaft (133) and is limited in the mounting seat (21) to control the movable member (23) to return and bulge.

9. The biocatch device according to any one of claims 3 to 8, characterized in that: The gripper (22) is provided with a protective body (24) for preventing the creatures from escaping.

10. The bio-killer according to claim 9, characterized in that: The movable part (23) and the protective body (24) are an integrated structure, or the fixed part (214) and the movable part (23) are an integrated structure, or the fixed part (214), the movable part (23) and the protective body (24) are an integrated structure, or the mounting seat (21), the movable part (23) and the protective body (24) are an integrated structure.

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