Pneumatic mouse killer

Abstract

The utility model provides a pneumatic mouse killer and relates to the field of mouse killing. The mouse killer comprises a first shell, a second shell and a mouse trap, wherein the first shell is provided with an entrance for a mouse to enter; the luring box is arranged inside and used for storing bait; the catching and killing assembly covers the compressed gas source, the regulator assembly, the pneumatic killing structure and the trigger which are matched with one another and are all arranged in the first shell, when a mouse enters and triggers the trigger, gas of the compressed gas source flows out through the regulator assembly, and the pneumatic killing structure is triggered to impact the mouse in the shell; the auxiliary killing assembly comprises a power supply and a positive conductive end and a negative conductive end which are connected with the positive electrode and the negative electrode of the power supply respectively, the positive end is arranged at the impact end of the pneumatic killing structure, and the negative end is arranged in the first shell and used for touching mice in the shells. By means of the dual effects of the pneumatic killing structure and the auxiliary killing assembly, the catching and killing power is greatly enhanced, and the probability that mice must be killed after being hit by one shot is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rodent extinguishing, in particular to a pneumatic rodent extinguisher. Background Art

[0002] Rats are a common and diverse species of rodents with very distinctive characteristics. They are small and flexible, usually with short and thin limbs, sharp claws for climbing and digging, and long and thin tails. Most of them are gray, brown or black in color. Rats have strong adaptability and can survive in almost all environments. They can be seen in urban sewers, warehouses, rural fields and houses. Not only that, the reproductive capacity of rats is also amazing. Female rats can give birth to a large number of pups in a short period of time. However, rats have many adverse effects on humans. They may spread diseases such as plague and hemorrhagic fever, posing a serious threat to human health. They will also gnaw objects, destroy food, clothing, wires, etc., and cause economic losses.

[0003] Patent No. US9615566B2 discloses a pneumatic animal trap, comprising: an inlet; a bait; a trigger rod, the trigger rod extending from a mounting member at or near its first end to a space between the inlet and the bait in a stationary position, the trigger rod being mounted to pivot around the mounting member; a killing mechanism, the killing mechanism being configured to operate between the inlet and the trigger rod; wherein the animal causes the trigger rod to move from the stationary position, causing the killing mechanism to be actuated to kill the animal. In this patent, there are great limitations in killing animals by relying solely on a single impact of the killing mechanism. Because there are many differences in the size, body structure and movement state of animals, the bone strength, muscle distribution and location of vital parts of different animals are all different. For example, larger animals usually have stronger bones and muscle tissues and can withstand greater impact forces, so a single impact is difficult to cause fatal damage to them. Moreover, when the animal is in motion, the impact force will be dispersed and weakened, and cannot be concentrated on the fatal parts. In addition, the angle and position of the impact are extremely critical. If the animal's head, heart and other critical and fatal parts are not accurately hit, it is very likely that the animal will not be killed quickly, or even just injured, causing it to struggle in pain, and it will not be possible to achieve a fast, humane and effective killing effect. At the same time, the impact force of the killing mechanism will be restricted by many factors, such as the power source of the equipment, the design and performance of the mechanical structure, etc. If there are defects in these aspects, the impact force generated may not be enough to instantly kill animals of various sizes and conditions.

[0004] To sum up, in actual application, it is indeed difficult to guarantee a fatal blow every time by relying solely on the impact of the killing mechanism to kill animals. Utility Model Content

[0005] The purpose of the present utility model is to provide a pneumatic rat exterminator, aiming to solve the technical problems in the above-mentioned background technology.

[0006] The technical solution of the present utility model is realized as follows:

[0007] The technical solution of this application provides a pneumatic rat exterminator, including;

[0008] A first outer shell, provided with an entrance for a rat to enter its interior;

[0009] An attracting box, arranged inside the above-mentioned first outer shell, for storing bait;

[0010] A killing assembly, including a compressed gas source, a regulator assembly, a pneumatic killing structure and a trigger that cooperate with each other. The above-mentioned pneumatic killing structure and the above-mentioned trigger are both arranged inside the above-mentioned first outer shell. When a rat enters the inside of the above-mentioned first outer shell and triggers the above-mentioned trigger, the gas of the above-mentioned compressed gas source flows out from the above-mentioned regulator assembly and fires the above-mentioned pneumatic killing structure to strike the rat inside the above-mentioned first outer shell; and

[0011] An auxiliary killing assembly, including a power supply and a positive conductive end and a negative conductive end respectively connected to the positive and negative poles of the above-mentioned power supply. The above-mentioned positive conductive end is arranged at the impact end of the above-mentioned pneumatic killing structure, and the above-mentioned negative conductive end is arranged inside the above-mentioned first outer shell for touching the rat inside the above-mentioned first outer shell.

[0012] A further technical solution is that a support seat is arranged on the bottom side of the above-mentioned first outer shell, the above-mentioned support seat is provided with a passage, and the above-mentioned passage is communicated with the above-mentioned entrance.

[0013] A further technical solution is that the above-mentioned pneumatic killing structure includes a second outer shell, an elastic impact structure and a gas storage cavity. The above-mentioned second outer shell is arranged on the outside of the above-mentioned first outer shell, and the above-mentioned second outer shell is provided with a first cavity communicating with the inside of the above-mentioned first outer shell;

[0014] Wherein, the above-mentioned elastic impact structure includes an impact rod and a first spring. The above-mentioned impact rod is slidably arranged inside the above-mentioned first cavity, and one end of the above-mentioned impact rod extends into the inside of the above-mentioned first outer shell. The above-mentioned first spring is elastically connected to the above-mentioned impact rod and the above-mentioned first cavity, and the above-mentioned first spring pushes the above-mentioned impact rod away from the above-mentioned first outer shell under the elastic action;

[0015] Among them, the above gas storage cavity includes a second cavity and a third cavity provided in the above second outer shell. The second cavity and the third cavity communicate with each other, and a main valve in the form of a diaphragm is provided at the communication part of the second cavity and the third cavity. The second cavity communicates with the regulator assembly, and the third cavity communicates with the first cavity. When the compressed gas source releases gas, the gas enters the second cavity through the regulator assembly. Once the trigger is triggered, the main valve opens, and the gas in the second cavity can enter the third cavity and the first cavity, and push the impact rod to hit the mouse.

[0016] A further technical solution is that the above second outer shell is provided with a fourth cavity, the fourth cavity communicates with the third cavity, and the trigger is provided in the fourth cavity. The trigger can be used for releasing the pressure in the fourth cavity.

[0017] A further technical solution is that the above positive electrode conductive end includes a positive electrode conductive sheet, a second conductive spring, and a positive electrode conductive column. The positive electrode conductive sheet is electrically connected to the positive electrode of the above power supply;

[0018] Among them, a first sliding groove is provided at the end of the above impact rod. The positive electrode conductive sheet is provided at the bottom of the first sliding groove. The positive electrode conductive column is telescopically arranged in the first sliding groove, and one end of the positive electrode conductive column passes out of the first sliding groove. The second conductive spring connects the positive electrode conductive column and the positive electrode conductive sheet.

[0019] A further technical solution is that the above positive electrode conductive column is provided with a first slider, the first sliding groove is provided with a first guiding groove that slidably cooperates with the first slider, and the first guiding groove does not penetrate the notch of the first sliding groove.

[0020] A further technical solution is that the above negative electrode conductive end includes a negative electrode conductive sheet, a third conductive spring, and a negative electrode conductive column. The negative electrode conductive sheet is electrically connected to the negative electrode of the above power supply;

[0021] Among them, the above first outer shell is provided with a second sliding groove. The negative electrode conductive sheet is provided at the bottom of the second sliding groove. The negative electrode conductive column is telescopically arranged in the second sliding groove, and one end of the negative electrode conductive column passes out of the second sliding groove. The third conductive spring connects the negative electrode conductive column and the negative electrode conductive sheet.

[0022] A further technical solution is that the above negative electrode conductive column is provided with a second slider, the second sliding groove is provided with a second guiding groove that slidably cooperates with the second slider, and the second guiding groove does not penetrate the notch of the second sliding groove.

[0023] Compared with the prior art, the technical solution of the present utility model has at least the following advantages or beneficial effects:

[0024] When this application is in use, bait is placed in the bait box, and the smell of the bait will disperse into the air. Mice are attracted by the smell and enter the interior of the first housing through the entrance. When a mouse triggers the trigger, the gas in the compressed gas source flows out from the regulator assembly, and then strikes the pneumatic killing structure to hit the mouse. At the same time, the power supply, the positive conductive end, the mouse, and the negative conductive end form a closed loop, thereby realizing the electrocution of the mouse. In this application, the dual functions of the pneumatic killing structure and the auxiliary killing component are cleverly utilized. The pneumatic killing structure can strongly hit the mouse, while the auxiliary killing component can implement electrocution; the two cooperate with each other, greatly enhancing the killing power, effectively increasing the probability of instantly killing the mouse, and significantly improving the mouse-catching effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of a pneumatic mouse trap according to an embodiment of the present utility model;

[0027] Figure 2 It is a sectional view of a pneumatic mouse trap according to an embodiment of the present utility model;

[0028] Figure 3 For Figure 2 The partial enlarged view of A in

[0029] Figure 4 For Figure 2 The partial enlarged view of B in

[0030] Reference numerals: 1 - support base, 2 - bait box, 3 - trigger, 4 - power supply, 5 - main valve, 6 - regulator assembly, 7 - compressed gas source, 8 - first cavity, 9 - second cavity, 10 - third cavity, 11 - fourth cavity, 12 - impact rod, 121 - first rod body, 122 - second rod body, 13 - first spring, 14 - positive conductive end, 1401 - positive conductive sheet, 1402 - second conductive spring, 1403 - positive conductive column, 15 - first guide groove, 16 - first slider, 17 - second slider, 18 - second guide groove, 19 - first housing, 20 - second housing, 21 - negative conductive end, 2101 - negative conductive sheet, 2102 - third conductive spring, 2103 - negative conductive column. Detailed implementation manners

[0031] Embodiment

[0032] Please refer to Figures 1-4 , a pneumatic rat exterminator, comprising;

[0033] A first outer shell 19, provided with an inlet for a rat to enter its interior;

[0034] An attracting box 2, arranged inside the first outer shell 19, for storing bait;

[0035] A killing assembly, including a compressed gas source 7, a regulator assembly 6, a pneumatic killing structure and a trigger 3 which cooperate with each other. The pneumatic killing structure and the trigger 3 are both arranged inside the first outer shell 19. When a rat enters the interior of the first outer shell 19 and triggers the trigger 3, the gas from the compressed gas source 7 flows out from the regulator assembly 6, and the pneumatic killing structure is fired to strike the rat inside the first outer shell 19; and

[0036] An auxiliary killing assembly, including a power supply 4 and a positive conductive end 14 and a negative conductive end 21 respectively connected to the positive and negative poles of the power supply 4. The positive conductive end 14 is arranged at the impact end of the pneumatic killing structure, and the negative conductive end 21 is arranged inside the first outer shell 19 for touching the rat inside the first outer shell 19.

[0037] When this application is in use, bait is placed in the attracting box 2, and the smell of the bait will disperse into the air. The rat is attracted by the smell and enters the interior of the first outer shell 19 through the inlet. When the rat triggers the trigger 3, the gas in the compressed gas source 7 flows out from the regulator assembly 6, and then the pneumatic killing structure is fired to strike the rat. At the same time, the power supply 4, the positive conductive end 14, the rat and the negative conductive end 21 form a closed loop, thereby realizing the electrocution of the rat. In this application, the dual functions of the pneumatic killing structure and the auxiliary killing assembly are skillfully utilized. The pneumatic killing structure can strongly strike the rat, while the auxiliary killing assembly can implement electrocution; the two cooperate with each other, greatly enhancing the killing power, effectively increasing the probability of killing the rat with one strike, and significantly improving the rat extermination effect.

[0038] It is worth mentioning that the above-mentioned compressed gas source 7, regulator assembly 6, pneumatic killing structure and trigger 3 all belong to the prior art. In US9615566B2, PCT / NZ2010 / 000037 and PCT / NZ2011 / 000178, the above structures are described in detail, and their entire contents are incorporated herein by reference. Therefore, they will not be discussed in detail in this specification.

[0039] In some embodiments of the present utility model, a support base 1 is provided on the bottom side of the first outer shell 19. The support base 1 is provided with a passageway, and the passageway is communicated with the inlet.

[0040] In the above embodiment, the support base 1 plays an important role. It effectively provides stable support for the first outer shell 19. This design has significant advantages and greatly facilitates placing the present application on the ground for use. At the same time, the design of the above passageway being communicated with the inlet is also quite ingenious. This connection method creates convenient conditions for the passage of mice, enabling mice to enter the interior of the mouse exterminator more smoothly. Such a design fully considers the actual use situation and is more in line with the behavior habits of mice, making the entire mouse extermination process more reasonable and efficient, and greatly increasing the possibility of successful mouse extermination.

[0041] In some embodiments of the present utility model, the pneumatic killing structure includes a second outer shell 20, an elastic impact structure, and a gas storage cavity. The second outer shell 20 is disposed outside the first outer shell 19, and the second outer shell 20 is provided with a first cavity 8 communicating with the inside of the first outer shell 19;

[0042] Among them, the elastic impact structure includes an impact rod 12 and a first spring 13. The impact rod 12 is slidably disposed inside the first cavity 8, and one end of the impact rod 12 extends into the first outer shell 19. The first spring 13 is elastically connected to the impact rod 12 and the first cavity 8, and the first spring 13 pushes the impact rod 12 away from the first outer shell 19 under the elastic action;

[0043] Among them, the gas storage cavity includes a second cavity 9 and a third cavity 10 provided in the second outer shell 20. The second cavity 9 and the third cavity 10 are communicated with each other, and a main valve 5 in the form of a diaphragm is provided at the communication position between the second cavity 9 and the third cavity 10. The second cavity 9 is communicated with the regulator assembly 6, and the third cavity 10 is communicated with the first cavity 8. When the compressed gas source 7 releases gas, the gas enters the second cavity 9 through the regulator assembly 6. Once the trigger 3 is triggered, the main valve 5 is opened, and the gas in the second cavity 9 can enter the third cavity 10 and the first cavity 8, and push the impact rod 12 to strike the mouse.

[0044] In the above embodiments, the main valve 5 separates the second cavity 9 and the third cavity 10 into two independent cavities. After the trigger 3 is triggered, the main valve 5 is in an open state, and the gas in the second cavity 9 flows into the third cavity 10 and the first cavity 8, and pushes the impact rod 12 to strike the mouse. After the impact action of the impact rod 12 is completed, the gas is discharged from the third cavity 10, and the first spring 13 resets the impact rod 12 to its initial position for reuse.

[0045] It should be noted that the impact rod 12 is composed of a first rod body 121 and a second rod body 122, and the diameter of the second rod body 122 is smaller than that of the first rod body 121. The first rod body 121 is slidably matched with the first cavity 8, and the outer side of the first rod body 121 is in contact with the inner side of the first cavity 8 to ensure that the gas does not leak. The first spring 13 is sleeved on the second rod body 122 and is elastically matched with the first rod body 121. The impact rod 12 strikes the mouse by directly acting through the second rod body 122.

[0046] In some embodiments of the present utility model, the above-mentioned second outer shell 20 is provided with a fourth cavity 11, the fourth cavity 11 communicates with the above-mentioned third cavity 10, and the above-mentioned trigger 3 is arranged in the above-mentioned fourth cavity 11, and the above-mentioned trigger 3 can be used for releasing the pressure in the above-mentioned fourth cavity 11.

[0047] In the above embodiments, the trigger 3 has the function of pressure relief. After the impact is completed, the gas in the third cavity 10 can be discharged from the fourth cavity 11 and the trigger 3. The trigger 3 belongs to the prior art. In US9615566B2, PCT / NZ2010 / 000037, and PCT / NZ2011 / 000178, the above structure is described in detail, and all of its content is incorporated herein by reference. Therefore, it will not be discussed in detail in this specification.

[0048] In some embodiments of the present utility model, the above-mentioned positive electrode conductive end 14 includes a positive electrode conductive sheet 1401, a second conductive spring 1402, and a positive electrode conductive column 1403, and the above-mentioned positive electrode conductive sheet 1401 is electrically connected to the positive electrode of the above-mentioned power supply 4;

[0049] Among them, a first sliding groove is provided at the end of the above-mentioned impact rod 12, the above-mentioned positive electrode conductive sheet 1401 is arranged at the bottom of the first sliding groove, the above-mentioned positive electrode conductive column 1403 is telescopically arranged in the first sliding groove, and one end of the above-mentioned positive electrode conductive column 1403 passes through the first sliding groove, and the above-mentioned second conductive spring 1402 connects the above-mentioned positive electrode conductive column 1403 and the above-mentioned positive electrode conductive sheet 1401.

[0050] In the above embodiment, at the moment when the impact rod 12 impacts the mouse, a relatively large impact force will be generated. At this time, the positive electrode conductive column 1403 will compress the second conductive spring 1402. This compression action enables the positive electrode conductive column 1403 to cleverly avoid directly participating in the impact process, effectively preventing damage that the positive electrode conductive column 1403 might suffer under the strong impact force. This design is quite ingenious. In this way, it forms a good protection for the positive electrode conductive column 1403, extends its service life, ensures that the entire device can still maintain a stable electric shock function after multiple uses, and further improves the reliability and practicality of the mouse trap.

[0051] In some embodiments of the present utility model, the above positive electrode conductive column 1403 is provided with a first slider 16, the above first sliding groove is provided with a first guiding groove 15 that slidably cooperates with the above first slider 16, and the above first guiding groove 15 does not penetrate the notch of the above first sliding groove.

[0052] In the above embodiment, the sliding cooperation between the first slider 16 and the first guiding groove 15 prevents the positive electrode conductive column 1403 from slipping out of the first guiding groove 15, which is beneficial to ensuring the structural stability of the positive electrode conductive end 14.

[0053] In some embodiments of the present utility model, the above negative electrode conductive end 21 includes a negative electrode conductive sheet 2101, a third conductive spring 2102, and a negative electrode conductive column 2103. The above negative electrode conductive sheet 2101 is electrically connected to the negative electrode of the above power supply 4;

[0054] Among them, the above first housing 19 is provided with a second sliding groove. The above negative electrode conductive sheet 2101 is arranged at the bottom of the above second sliding groove. The above negative electrode conductive column 2103 is telescopically arranged in the above second sliding groove, and one end of the above negative electrode conductive column 2103 penetrates the above second sliding groove. The above third conductive spring 2102 connects the above negative electrode conductive column 2103 and the above negative electrode conductive sheet 2101.

[0055] In the above embodiment, at the moment when the impact rod 12 impacts the mouse, a relatively large impact force will be generated. At this time, the negative electrode conductive column 2103 will compress the third conductive spring 2102. This compression action enables the negative electrode conductive column 2103 to cleverly avoid directly participating in the impact process, effectively preventing damage that the negative electrode conductive column 2103 might suffer under the strong impact force. This design is quite ingenious. In this way, it forms a good protection for the negative electrode conductive column 2103, extends its service life, ensures that the entire device can still maintain a stable electric shock function after multiple uses, and further improves the reliability and practicality of the mouse trap.

[0056] In some embodiments of the present utility model, a second slider 17 is provided on the negative electrode conductive post 2103, a second guiding groove 18 that is slidably engaged with the second slider 17 is provided in the second sliding groove, and the second guiding groove 18 does not penetrate through the notch of the second sliding groove.

[0057] In the above embodiment, the sliding fit between the second slider 17 and the second guiding groove 18 prevents the negative electrode conductive post 2103 from slipping out of the second guiding groove 18, which is beneficial to ensuring the structural stability of the negative electrode conductive end 21.

[0058] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pneumatic rodent killer, characterized in that: include; A first housing (19) is provided with an entrance opening for mice to enter the interior thereof; An attractant box (2), arranged inside the first housing (19) and used for storing the bait; A killing assembly, comprising a compressed gas source (7), a regulator assembly (6), a pneumatic killing structure and a trigger (3) that cooperate with each other, wherein the pneumatic killing structure and the trigger (3) are both arranged inside the first shell (19), and when a mouse enters the first shell (19) and triggers the trigger (3), the gas of the compressed gas source (7) flows out from the regulator assembly (6) and triggers the pneumatic killing structure to hit the mouse inside the first shell (19); as well as The auxiliary killing component comprises a power supply (4) and a positive conductive end (14) and a negative conductive end (21) respectively connected to the positive and negative poles of the power supply (4); the positive conductive end (14) is arranged at the impact end of the pneumatic killing structure, and the negative conductive end (21) is arranged inside the first shell (19) to touch the mouse inside the first shell (19).

2. A pneumatic rodent killer according to claim 1, characterized in that: A support seat (1) is provided on the bottom side of the first shell (19), and the support seat (1) is provided with a passage, and the passage is communicated with the entrance.

3. A pneumatic rodent killer according to claim 1, characterized in that: The pneumatic killing structure comprises a second shell (20), an elastic impact structure and a gas storage chamber, wherein the second shell (20) is arranged on the outside of the first shell (19), and the second shell (20) is provided with a first cavity (8) communicating with the interior of the first shell (19); The elastic impact structure comprises an impact rod (12) and a first spring (13); the impact rod (12) is slidably arranged inside the first cavity (8), and one end of the impact rod (12) extends into the first shell (19); the first spring (13) elastically connects the impact rod (12) and the first cavity (8); and the first spring (13) pushes the impact rod (12) away from the first shell (19) under the elastic action; The gas storage chamber comprises a second chamber (9) and a third chamber (10) arranged in the second shell (20); the second chamber (9) and the third chamber (10) are connected to each other, and a main valve (5) in the form of a diaphragm is arranged at the connection point between the second chamber (9) and the third chamber (10); the second chamber (9) and the regulator assembly (6) are connected, and the third chamber (10) and the first chamber (8) are connected; when the compressed gas source (7) releases gas, the gas enters the second chamber (9) via the regulator assembly (6); once the trigger (3) is triggered, the main valve (5) is opened, and the gas in the second chamber (9) can enter the third chamber (10) and the first chamber (8), and push the impact rod (12) to impact the mouse.

4. A pneumatic rodent killer according to claim 3, characterized in that: The second housing (20) is provided with a fourth cavity (11), the fourth cavity (11) is connected to the third cavity (10), and the trigger (3) is arranged in the fourth cavity (11), and the trigger (3) can be used to release the pressure in the fourth cavity (11).

5. A pneumatic rodent killer according to claim 3, characterized in that: The positive electrode conductive end (14) comprises a positive electrode conductive sheet (1401), a second conductive spring (1402) and a positive electrode conductive column (1403), and the positive electrode conductive sheet (1401) is electrically connected to the positive electrode of the power supply (4); In which, a first sliding groove is arranged at the end of the impact rod (12), the positive conductive sheet (1401) is arranged at the bottom of the first sliding groove, the positive conductive column (1403) is telescopically arranged in the first sliding groove, and one end of the positive conductive column (1403) passes through the first sliding groove, and the second conductive spring (1402) connects the positive conductive column (1403) and the positive conductive sheet (1401).

6. A pneumatic rodent killer according to claim 5, characterized in that: The positive electrode conductive column (1403) is provided with a first sliding block (16), and the first sliding groove is provided with a first guiding groove (15) that is slidably matched with the first sliding block (16), and the first guiding groove (15) does not pass through the notch of the first sliding groove.

7. A pneumatic rodent killer according to claim 3, characterized in that: The negative electrode conductive end (21) comprises a negative electrode conductive sheet (2101), a third conductive spring (2102) and a negative electrode conductive column (2103), and the negative electrode conductive sheet (2101) is electrically connected to the negative electrode of the power supply (4); The first housing (19) is provided with a second sliding groove, the negative conductive sheet (2101) is arranged at the bottom of the second sliding groove, the negative conductive column (2103) is telescopically arranged in the second sliding groove, and one end of the negative conductive column (2103) passes through the second sliding groove, and the third conductive spring (2102) connects the negative conductive column (2103) and the negative conductive sheet (2101).

8. A pneumatic rodent killer according to claim 7, characterized in that: The negative electrode conductive column (2103) is provided with a second sliding block (17), and the second sliding groove is provided with a second guiding groove (18) that is slidably matched with the second sliding block (17), and the second guiding groove (18) does not pass through the notch of the second sliding groove.

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