Electronic fence

Abstract

The utility model relates to the technical field of fences, and discloses an electronic fence which comprises a supporting column, the left side of the exterior of the supporting column is fixedly connected with a rolling box, the top of the rolling box is fixedly connected with a rolling mechanism, the right side of the exterior of the supporting column is fixedly connected with a first clamping plate, and the other end of the first clamping plate is fixedly connected with a fixing column. A plurality of butt joint mechanisms are fixedly connected to the front side and the rear side of the outer portion of the fixing column. According to the winding device for the electronic net, the motor is started to drive the electronic net to be wound through the connecting shaft, when the electronic net is installed, the second grip is pulled to drive the connecting sliding block to be placed in the fixing column, then the first grip is loosened to enable the first spring to rebound, and then the electronic net is wound. The sliding clamping rods can be clamped into the first clamping grooves outside the connecting sliding blocks, then the limiting rods are inserted into the fixing columns, and then installation of the electronic net can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fence, especially electronic fence. BACKGROUND

[0002] The large warehouse of factory usually stores a large amount of raw materials, finished products and other valuable materials, installs the electronic fence with alarm structure, can carry out 24 hours monitoring to the warehouse periphery, once there is abnormal condition, can send out the alarm quickly, informs security personnel, prevents the occurrence of theft and other illegal events, protects the property safety of enterprise.

[0003] The principle of part of electronic fence system in prior art is based on electromagnetic induction and signal processing technology, the electronic fence host sends impulse signal to front fence, forms electronic fence wall, when someone or object contacts, destroys the fence, the state of impulse signal will change, the host can detect the change quickly, and triggers the alarm.

[0004] But in the specific use process, the electronic fence that can not be rolled needs to unroll and fix the whole roll of electronic net during installation, the process is more cumbersome, especially for large area or long distance installation, needs many people to cooperate and consumes a lot of time and energy, compared with this, the electronic fence that can be rolled can be more conveniently carried and gradually unrolled and installed, improves the installation efficiency, in view of the above problems, an electronic fence is provided. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides an electronic fence, which aims at improving the problem that part of the device in the prior art cannot roll the electronic net.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An electronic fence, comprising a support column, the outer left side of the support column is fixedly connected with a rolling box, the top of the rolling box is fixedly connected with a rolling mechanism, the outer right side of the support column is fixedly connected with a clamping plate one, the other end of the clamping plate one is fixedly connected with a fixed column, the outer front and rear sides of the fixed column are fixedly connected with a plurality of docking mechanisms.

[0008] The rolling mechanism comprises a motor, the driving end of the motor is fixedly connected with a connecting shaft, the driving end of the connecting shaft is fixedly connected with an electronic net, the other end of the electronic net is fixedly connected with a connecting sliding block, the outer upper and lower ends of the connecting sliding block are both provided with a clamping groove one, the front side of the connecting sliding block is fixedly connected with a handle two, the outer upper and lower ends of the fixed column are both slidingly connected with a clamping assembly, the outer of the motor is fixedly connected at the top of the rolling box.

[0009] As a further description of the above technical scheme:

[0010] The clamping assembly comprises a sliding clamping rod, the outer part of the sliding clamping rod is fixedly connected with a limiting plate, the outer part of the sliding clamping rod is sleeved with a spring one, the other end of the sliding clamping rod is fixedly connected with a handle one, and the outer part of the sliding clamping rod is slidably connected to the outer part of the fixed column.

[0011] As a further description of the above technical solution:

[0012] The docking mechanism comprises a mounting rack, the inner part of the mounting rack is fixedly connected with a fixed shaft, the outer part of the fixed shaft is rotatably connected with a rotating clamping plate, the outer part of the rotating clamping plate is fixedly connected with an extension rod, the outer part of the extension rod is sleeved with a spring two, the other end of the rotating clamping plate is fixedly connected with a clamping rod one, and the outer part of the mounting rack is fixedly connected to the outer part of the fixed column on the front and back sides.

[0013] As a further description of the above technical solution:

[0014] The inner part of the fixed column is provided with a cavity, and the outer part of the sliding clamping rod is slidably connected to the inner part of the cavity.

[0015] As a further description of the above technical solution:

[0016] The outer part of the sliding clamping rod is slidably connected to the inner part of the connecting sliding block, and the outer part of the connecting sliding block is slidably connected to the inner part of the fixed column.

[0017] As a further description of the above technical solution:

[0018] The top of the fixed column is slidably connected with a limiting rod, and the outer part of the limiting rod is slidably connected to the outer part of the sliding clamping rod.

[0019] As a further description of the above technical solution:

[0020] The outer part of the clamping rod one is clamped with the outer part of the clamping groove two, which is provided on the front and back sides of the winding box.

[0021] As a further description of the above technical solution:

[0022] The outer part of the support column is fixedly connected with an inclined steel on the front side, the outer part of the inclined steel is fixedly connected with an electric box, and the outer top end of the electric box is electrically connected with an electric wire.

[0023] As a further description of the above technical solution:

[0024] The other end of the electric wire is fixedly connected with a sliding block one, the top of the sliding block one is fixedly connected with a light alarm, and the outer part of the sliding block one is slidably connected to the outer top end of the clamping plate one.

[0025] As a further description of the above technical solutions:

[0026] One end of the spring two is fixedly connected to the outside of the rotating clamping plate, and the other end of the spring two is fixedly connected to the outside of the fixed column.

[0027] The utility model has the following beneficial effects:

[0028] 1. In the utility model, the motor is started, the motor drives the electronic net to be wound through the connecting shaft, when the electronic net is installed, handle two is pulled, handle two drives the connecting sliding block to be placed in the inside of the fixed column, then handle one is loosened, spring one is rebounded, the sliding clamping rod can be clamped into the clamping groove one in the outside of the connecting sliding block, then the limiting rod is inserted into the inside of the fixed column, the installation of the electronic net can be realized, the winding type electronic net is convenient to carry and unfold, the installation personnel can more easily unfold the electronic net from the winding state to the specified position for installation, especially in the large area or long distance installation scene, time and labor cost can be greatly saved, and the installation speed is improved.

[0029] 2. In the utility model, the rotating clamping plate can extrude the telescopic rod, then spring two is deformed, the clamping rod one in the outside of the rotating clamping plate is separated from the clamping groove two in the outside of the supporting column, when the whole is butted, the spring two is rebounded by loosening the rotating clamping plate, then the clamping rod one is clamped with the clamping groove two in the outside of the supporting column, then the butt joint of the whole can be realized, through the butt joint of the whole, the electronic fence can form a continuous, closed protection boundary around the protection area, the gap and loophole between single electronic fences are eliminated, the protection area is comprehensively and dead angle free protected, and illegal intrusion behavior is effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A three-dimensional schematic view of an electronic fence is provided for the utility model.

[0031] Figure 2 A structure schematic view of a connecting sliding block of an electronic fence is provided for the utility model.

[0032] Figure 3 A structure schematic view of a fixed column of an electronic fence is provided for the utility model.

[0033] Figure 4 A Figure 3 An enlarged view of A in the middle.

[0034] Figure 5 A structure schematic view of an electronic net of an electronic fence is provided for the utility model.

[0035] Figure 6 For Figure 5 Enlarged view at B.

[0036] Figure 7 For the utility model proposes a kind of electronic fence's electric box structure schematic view.

[0037] Legend:

[0038] 1, support column;2, winding box;3, motor;4, connecting shaft;5, electronic net;6, fixed column;7, sliding clamping rod;8, cavity;9, limit plate;10, spring one;11, connecting sliding block;12, handle one;13, clamping groove one;14, handle two;15, limit rod;16, clamping plate one;17, mounting bracket;18, fixed shaft;19, rotating clamping plate;20, telescopic rod;21, spring two;22, clamping rod one;23, clamping groove two;24, inclined steel;25, electric box;26, electric wire;27, sliding block one;28, light alarm. Specific implementation

[0039] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0040] With reference to Figures 1 to 3 , the utility model provides an embodiment: a kind of electronic fence, including support column 1, support column 1 is the basis supporting component of entire electronic fence with alarm structure, provide stable installation carrier for other structure, support column 1 is made of high-strength alloy steel material, this steel material has good strength and toughness, can withstand various natural environment test and the external force generated in equipment operation process. The external left side of support column 1 is fixedly connected with winding box 2, winding box 2 is made of stainless steel material, has good corrosion resistance and strength, can adapt to different outdoor environment. The top of winding box 2 is fixedly connected with winding mechanism, the external right side of support column 1 is fixedly connected with clamping plate one 16, clamping plate one 16 is important component for connecting support column 1 and fixed column 6, the other end of clamping plate one 16 is fixedly connected with fixed column 6, the external front and back sides of fixed column 6 are all fixedly connected with multiple docking mechanisms, docking mechanism includes mounting bracket 17, mounting bracket 17 is made of aluminum alloy material, this material has the characteristics of light weight, high strength, can reduce the weight of entire docking mechanism, and can guarantee its stability in use. The inside of mounting bracket 17 is fixedly connected with fixed shaft 18, fixed shaft 18 is treated after quenching and tempering, has good strength and toughness, can withstand various forces generated in the rotating process of rotating clamping plate 19.

[0041] A rotating clamping plate 19 is externally connected to the fixed shaft 18. The rotating clamping plate 19 is formed through processes such as cutting, bending, and welding to ensure smooth rotation. A clamping rod 22 is fixedly connected to the other end. A telescopic rod 20 is externally connected to the rotating clamping plate 19. The telescopic rod 20 is made of stainless steel and consists of an inner rod and an outer tube. The inner rod can freely extend and retract within the outer tube. The surfaces of the inner rod and the outer tube are precision-machined to ensure smooth extension and retraction without jamming. A spring 21 is fitted externally to the telescopic rod 20. Spring 21 is the elastic element in the docking mechanism. Spring 21 is made of high-quality spring steel and has undergone quenching and tempering treatment, possessing good elasticity and fatigue life. The elastic coefficient of spring 21 has been precisely calculated and tested to ensure it can provide suitable elastic force for the rotating clamping plate 19. The other end of the rotating plate 19 is fixedly connected to a clamp rod 22. The clamp rod 22 is hardened to enhance its wear resistance and strength. The clamp rod 22 is cylindrical in shape and its length is designed according to the groove depth and docking requirements of other components. The mounting bracket 17 is externally fixedly connected to the front and rear sides of the fixed column 6.

[0042] The winding mechanism includes a motor 3, which serves as the power source and is fixed to the top of the winding box 2. It is a high-performance DC geared motor 3, characterized by its small size, high torque, and stable speed, making it ideal for use in electronic fences where space and power output are specific requirements. A connecting shaft 4 is fixedly connected to the drive end of the motor 3. The connecting shaft 4 is a key component that transmits the rotational power of the motor 3 to the electronic mesh 5. Made of alloy steel and heat-treated, the connecting shaft 4 possesses good strength and toughness, capable of withstanding the torque output by the motor 3 and the tension generated by the electronic mesh 5 during winding and unwinding. The electronic mesh 5 is fixedly connected to the drive end of the connecting shaft 4. The electronic mesh 5 is the core component of the electronic fence, used to provide protection and alarm functions for specific areas. The electronic mesh 5 is woven from high-strength alloy steel wire, and the surface of the wire is galvanized, which not only improves the strength and toughness of the electronic mesh 5 but also enhances its corrosion resistance, enabling it to adapt to various harsh outdoor environments. The other end of the electronic mesh 5 is fixedly connected to a connecting slider 11. The connecting slider 11 is a key component for connecting and sliding the electronic mesh 5 with other components. The connecting slider 11 is made of high-strength engineering plastic. This material has good wear resistance, self-lubrication and mechanical strength, which can reduce friction with other components while ensuring connection strength.

[0043] The outer upper and lower ends of the connecting sliding block 11 are provided with clamping grooves 13, which are the key structures for fixing the electronic net 5 in cooperation with the clamping assembly. The clamping grooves 13 are rectangular in shape, and their depth and width are accurately designed according to the size of the sliding clamping rod 7. The front side of the connecting sliding block 11 is fixedly connected with a handle 14, which provides an operating part for the operator to manually operate the connecting sliding block 11. The handle 14 is made of soft and good anti-skid materials such as rubber or silicone, and the surface is designed with ergonomic concave-convex lines, which can effectively increase the friction between the operator's hand and the handle 14, preventing the phenomenon of hand slipping during operation. The outer upper and lower ends of the fixed column 6 are slidably connected with the clamping assembly, which is mainly used to fix the electronic net 5 in place after it is unfolded, ensuring the normal work of the electronic fence. The clamping assembly includes a sliding clamping rod 7, which is treated by quenching to enhance its wear resistance and strength. It can withstand the force generated during the fixing of the electronic net 5. The outer side of the sliding clamping rod 7 is fixedly connected with a limiting plate 9, which is mainly used to limit the sliding range of the sliding clamping rod 7 to prevent it from sliding excessively and separating from the fixed column 6 or the clamping groove 13. The limiting plate 9 is formed by cutting, bending and welding processes. The outer side of the sliding clamping rod 7 is sleeved with a spring 10, which is an elastic element in the clamping assembly, used to realize the automatic reset function of the sliding clamping rod 7. The spring 10 is made of high-quality spring steel and treated by quenching and tempering, which has good elasticity and fatigue life. The other end of the sliding clamping rod 7 is fixedly connected with a handle 12, which facilitates the manual operation of the sliding clamping rod 7 by the operator. The handle 12 is made of soft and good anti-skid materials such as rubber or silicone. The outer side of the sliding clamping rod 7 is slidably connected to the outer side of the fixed column 6. The outer side of the motor 3 is fixedly connected to the top of the winding box 2.

[0044] Referring to Figures 3 to 5 The inner side of the fixed column 6 is provided with a cavity 8, which is a hollow structure with a cylindrical shape. The diameter is accurately designed according to the size of the sliding clamping rod 7 and the connecting sliding block 11, and is generally larger than the diameter of the sliding clamping rod 7. The outer side of the sliding clamping rod 7 is slidably connected to the inner side of the cavity 8. The outer side of the sliding clamping rod 7 is slidably connected to the inner side of the connecting sliding block 11.

[0045] The inside of the connecting sliding block 11 is provided with a sliding groove matched with the sliding clamping rod 7. The width and depth of the sliding groove are accurately designed according to the size of the sliding clamping rod 7, so as to ensure that the sliding clamping rod 7 can smoothly slide in the sliding groove, and at the same time ensure the tightness of the connection between the two. The outside of the connecting sliding block 11 is slidingly connected to the inside of the fixed column 6. The top of the fixed column 6 is slidingly connected to the limiting rod 15. The limiting rod 15 is subjected to quenching and tempering treatment, has good strength and toughness, and can bear the force generated in the process of limiting the movement of the sliding clamping rod 7. The outside of the limiting rod 15 is slidingly connected to the outside of the sliding clamping rod 7. The outside of the winding box 2 is provided with a clamping groove two 23 on the front and rear sides. The clamping groove two 23 is a rectangular groove. The depth and width of the clamping groove two 23 are accurately designed according to the size of the clamping rod one 22, so as to ensure that the clamping rod one 22 can be firmly clamped into the clamping groove two 23. The outside of the clamping rod one 22 is clamped with the outside of the clamping groove two 23.

[0046] Referring to Figures 5 to 7 The outside of the front side of the supporting column 1 is fixedly connected with the inclined steel 24. The inclined steel 24 is made of high-strength alloy steel. Such steel has excellent strength and toughness, can withstand a large external force without being easily deformed, and its cross-sectional shape is usually an angle steel. After precise machining such as cutting and polishing, the connection parts with the supporting column 1 and the electrical box 25 are accurately matched. The outside of the inclined steel 24 is fixedly connected with the electrical box 25. The electrical box 25 is made of stainless steel material, has good corrosion resistance and strength, can adapt to various outdoor environments, and protects the internal electronic components from the influence of bad weather and external factors. The shape of the electrical box 25 is a cuboid. The internal space is reasonably planned to install various electrical equipment for controlling the operation of the electronic fence. The outside top end of the electrical box 25 is electrically connected with the wire 26. The wire 26 is made of high-quality copper core cable. The copper core has good conductivity, which can effectively reduce the loss in the process of electric energy transmission. The outer skin of the wire 26 is made of high-strength insulating rubber material, has the characteristics of waterproof, sun-proof, wear-resistant, etc., and can adapt to complex outdoor environmental conditions.

[0047] The other end of the wire 26 is fixedly connected with a sliding block one 27, which is made of high-strength engineering plastic, such as polycarbonate, and has good strength, toughness and wear resistance. The sliding block one 27 is designed in the shape of a cuboid, and its internal structure is specially designed to be matched with the external top end of the clamping plate one 16 to achieve smooth sliding connection. The top of the sliding block one 27 is fixedly connected with a light alarm 28, which is an important part of the electronic fence alarm system and is used to emit obvious sound and light warning signals when detecting abnormal conditions. The light alarm 28 uses high-brightness LED lights as light sources, which can be clearly visible in both day and night. At the same time, it is equipped with a high-decibel alarm to emit a sharp alarm sound to attract the attention of surrounding people. The external sliding block one 27 is slidingly connected to the external top end of the clamping plate one 16. One end of the spring two 21 is fixedly connected to the external of the rotating clamping plate 19, and the other end of the spring two 21 is fixedly connected to the external of the fixed column 6. In the normal state, the spring two 21 is in a certain compression state to provide a force for the rotating clamping plate 19 to rotate in a specific direction, so that it can tightly fit the clamping groove or clamping hole and other structures on other components to achieve locking of the butt joint. When it is necessary to adjust the butt joint state, an external force overcomes the elastic force of the spring two 21 to make the rotating clamping plate 19 rotate. When it is adjusted to the appropriate position, the elastic force of the spring two 21 makes the rotating clamping plate 19 reset to re-lock the butt joint position, thereby ensuring the reliability of the connection of each part of the entire electronic fence system.

[0048] Working principle: when the electronic net 5 is disassembled and rolled up, first find the limiting rod 15, which plays a key role in fixing the position of the electronic net. Use appropriate force to smoothly pull out the limiting rod 15 to ensure that the surrounding structure is not damaged during the operation. Then, hold the handle one 12 with both hands and pull it evenly to make the handle one 12 drive the sliding clamping rod 7 to move slowly outward. With the movement of the sliding clamping rod 7, the limiting plate 9 will be subjected to an external force and begin to extrude the spring one 10. In this process, the spring one 10 will gradually deform elastically and store elastic potential energy. When the spring one 10 is compressed to a certain extent, the connecting sliding block 11 will be separated from the inside of the fixed column 6. At this time, one end of the electronic net 5 has been placed in a movable state. Then, start the motor 3, which transmits power to the electronic net 5 through the connecting shaft 4. The electronic net 5 begins to roll up under the drive of the motor. During the rolling process, pay close attention to the rolling of the electronic net 5 to ensure that it is evenly rolled up and avoid wrinkles or uneven winding problems,

[0049] In the installation of the electronic net 5, first find the handle two 14, hold it firmly with hand, then slowly pull, make the handle two 14 drive the connecting slider 11 to be placed accurately inside the fixed column 6, after being placed in place, slowly release the handle one 12, at this time, the spring one 10 that is compressed before starts to rebound, by its own elastic potential, push the sliding clamp bar 7 to move to the connecting slider 11 direction, until the sliding clamp bar 7 is clamped into the clamping groove one 13 outside the connecting slider 11, this step ensures the stable connection between the connecting slider 11 and the fixed column 6, then, insert the limiting rod 15 into the inside of the fixed column 6, at this time, the installation of the electronic net 5 is completed, after the installation is completed, simple test is needed, check whether the electronic net 5 is installed firmly and whether it can operate normally.

[0050] When the whole needs to be separated, find the rotating clamp plate 19, press it with fingers, make it rotate around its rotating shaft, in the rotating process, the rotating clamp plate 19 will extrude the telescopic rod 20, the telescopic rod 20 is forced to push the spring two 21, make the spring two 21 deform, store elastic potential, with the compression of the spring two 21, the clamp bar one 22 outside the rotating clamp plate 19 gradually separates from the clamping groove two 23 outside the support column 1, when the clamp bar one 22 completely separates from the clamping groove two 23, the whole is separated, in the separating process, attention should be paid to control the pressing force, avoid the structure from being damaged due to excessive force.

[0051] When the whole is docked, release the previously pressed rotating clamp plate 19, the spring two 21 starts to rebound due to the previously stored elastic potential, push the rotating clamp plate 19 to rotate reversely, make the clamp bar one 22 close to the clamping groove two 23 outside the support column 1, with the continuous rebound of the spring two 21, the clamp bar one 22 is accurately clamped into the clamping groove two 23 outside the support column 1, realize the docking of the whole, after the docking is completed, check the connection parts again, ensure the docking is firm, the parts are closely matched, and there is no looseness.

[0052] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. An electric fence comprising a support post (1), characterised in that: The outer left side of the support column (1) is fixedly connected with a winding box (2), the top of the winding box (2) is fixedly connected with a winding mechanism, the outer right side of the support column (1) is fixedly connected with a clamping plate (16), the other end of the clamping plate (16) is fixedly connected with a fixed column (6), and the outer front and rear sides of the fixed column (6) are fixedly connected with a plurality of docking mechanisms. The winding mechanism comprises a motor (3), the driving end of the motor (3) is fixedly connected with a connecting shaft (4), the driving end of the connecting shaft (4) is fixedly connected with an electronic net (5), the other end of the electronic net (5) is fixedly connected with a connecting sliding block (11), the outer upper and lower ends of the connecting sliding block (11) are both provided with a clamping groove (13), the front side of the connecting sliding block (11) is fixedly connected with a handle (14), and the outer upper and lower ends of the fixed column (6) are slidably connected with a clamping assembly.

2. An electric fence according to claim 1, characterised in that: The clamping assembly comprises a sliding clamping rod (7), the outer side of the sliding clamping rod (7) is fixedly connected with a limiting plate (9), the outer side of the sliding clamping rod (7) is sleeved with a spring (10), the other end of the sliding clamping rod (7) is fixedly connected with a handle (12), and the outer side of the sliding clamping rod (7) is slidably connected to the outer side of the fixed column (6).

3. An electric fence according to claim 1, wherein: The docking mechanism comprises a mounting frame (17), the inner side of the mounting frame (17) is fixedly connected with a fixed shaft (18), the outer side of the fixed shaft (18) is rotatably connected with a rotating clamping plate (19), the outer side of the rotating clamping plate (19) is fixedly connected with a telescopic rod (20), the outer side of the telescopic rod (20) is sleeved with a spring (21), the other end of the rotating clamping plate (19) is fixedly connected with a clamping rod (22), and the outer side of the mounting frame (17) is fixedly connected to the outer front and rear sides of the fixed column (6).

4. An electric fence according to claim 2, wherein: The inner side of the fixed column (6) is provided with a cavity (8), and the outer side of the sliding clamping rod (7) is slidably connected in the inner side of the cavity (8).

5. An electric fence according to claim 2, wherein: The outer side of the sliding clamping rod (7) is slidably connected in the inner side of the connecting sliding block (11), and the outer side of the connecting sliding block (11) is slidably connected in the inner side of the fixed column (6).

6. An electric fence according to claim 2, wherein: The top of the fixed column (6) is slidably connected with a limiting rod (15), and the outer side of the limiting rod (15) is slidably connected to the outer side of the sliding clamping rod (7).

7. An electric fence according to claim 3, wherein: The outer front and rear sides of the winding box (2) are both provided with a clamping groove (23), and the outer side of the clamping rod (22) is clamped with the outer side of the clamping groove (23).

8. An electric fence according to claim 1, wherein: The outer front side of the support column (1) is fixedly connected with an inclined steel (24), the outer side of the inclined steel (24) is fixedly connected with an electric box (25), and the outer top end of the electric box (25) is electrically connected with an electric wire (26).

9. An electric fence according to claim 8, wherein: The other end of the electric wire (26) is fixedly connected with a sliding block (27), the top of the sliding block (27) is fixedly connected with a light alarm (28), and the outer side of the sliding block (27) is slidably connected to the outer top end of the clamping plate (16).

10. An electric fence according to claim 3, wherein: One end of the second spring (21) is fixedly connected to the outside of the rotating clamping plate (19), and the other end of the second spring (21) is fixedly connected to the outside of the fixed column (6).

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