Novel wiring device of intelligent system

Abstract

The utility model provides a novel wiring device for an intelligent system, which comprises a rectangular box body, wire inlets are arranged on the left and right side surfaces, a corresponding wire outlet is arranged on the front side surface, and an internal arc-shaped channel is communicated with the rectangular box body. The box body is moderate in thickness and does not occupy too much space, and structural strength is guaranteed. The wire inlets are arranged at intervals front and back, and the wire outlets are arranged at intervals left and right, so that a large number of wires can be arranged. The inner diameter of the channel is gradually increased from front to back and is coaxial, thereby being suitable for wires of different specifications and convenient to maintain. The box body is provided with a groove and a fixed connecting hole and can be fixedly installed on the upper side, the left side and the right side to adapt to different positions and equipment frame bodies. The heat dissipation holes are communicated with the channels, heat is dissipated in time, and wires are prevented from being damaged due to overheating. The wire can be clamped and fixed by the clamping part and the clamping elastic sheet of the wire outlet, thereby preventing loosening and falling. The device can quickly arrange the wires, is simple to operate, solves the problem of wire scattering, meets the complex wiring requirements of an intelligent system, improves the installation stability and flexibility, and enhances the system reliability and wiring stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to wiring equipment technical field, concretely relates to a novel wiring device of intelligent system. BACKGROUND

[0002] In today's era of rapid technological development, intelligent systems have been widely applied in various fields. From home intelligent devices to industrial automation control systems, the popularity of intelligent systems has greatly improved production efficiency and quality of life.

[0003] However, with the continuous development and complication of intelligent systems, one of the prominent problems is wiring. In many intelligent system devices, a large number of wires are often involved. These wires bear important tasks such as transmitting power and signals.

[0004] If these wires are placed randomly, it will bring many adverse consequences:

[0005] Appearance is messy: not only affects the overall appearance of the device, but also gives people a feeling of unprofessional and chaotic. In some places with high appearance requirements, such as office areas, commercial places, etc., messy wires will reduce the overall quality of the environment.

[0006] Safety hazards: scattered wires are easy to be stepped on and pulled, which may cause the wire sheath to break, thereby causing safety accidents such as electric shock and short circuit. Especially in places with a large number of people, safety hazards are more prominent.

[0007] Maintenance is difficult: when the device needs to be maintained or troubleshooting, it is difficult to quickly and accurately find the specific wire. This will greatly increase the time and cost of maintenance, and reduce the efficiency of maintenance. Moreover, in the chaotic wires, it is also easy to mis-touch other lines and cause new problems.

[0008] At present, although there are some traditional wiring methods and devices, they often have the following shortcomings:

[0009] Poor regularity effect: traditional wiring methods may simply bundle wires together, which cannot achieve effective regularity. After a long time of use, the wires are still easy to loosen and become chaotic.

[0010] Slow wiring speed: traditional wiring devices are relatively cumbersome in installation and adjustment, which requires a lot of time and manpower. This is a big constraint factor for some intelligent systems that need to be quickly deployed.

[0011] Therefore, how to regularize and quickly wire becomes a problem to be solved in the field of intelligent system. Under this background, the application provides a novel wiring device of intelligent system, aiming at solving the problems in the prior art, and providing a more efficient, safe and beautiful solution for wiring of intelligent system. SUMMARY

[0012] In view of the problems in the background art, the utility model provides a novel wiring device of intelligent system to solve the above technical problems.

[0013] The technical scheme of the utility model is as follows:

[0014] A novel wiring device of intelligent system, comprising a box body, a plurality of wire inlet ports are arranged on the left side and the right side of the box body, a wire outlet port corresponding to the wire inlet ports is arranged on the front side of the box body, a channel is arranged in the box body and is communicated with the wire inlet ports and the wire outlet port, and the channel is arc-shaped.

[0015] The utility model is further provided with a plurality of wire inlet ports arranged on the left side and the right side of the box body, the wire inlet ports are arranged in the front-rear direction on the left side and the right side of the box body, and the wire outlet port on the front side of the box body is arranged in the left-right direction.

[0016] The utility model is further provided with a plurality of arc-shaped channels coaxially arranged corresponding to the wire inlet ports on the right side of the box body, and the inner diameter of the channels gradually increases from front to back.

[0017] The utility model is further provided with a plurality of arc-shaped channels coaxially arranged corresponding to the wire inlet ports on the left side of the box body, and the inner diameter of the channels gradually increases from front to back.

[0018] The utility model is further provided with a first recess arranged on the left side and the right side of the lower side of the front end of the box body, a second recess arranged on the lower side of the rear end of the box body, and a first fixed connecting hole penetrating the upper side of the box body arranged on the bottom of the first recess and the second recess.

[0019] The utility model is further provided with a second fixed connecting hole arranged on the front end of the left side and the right side of the box body, the second fixed connecting hole is in communication with the first recess, a third fixed connecting hole arranged on the rear end of the left side and the right side of the box body, and the third fixed connecting hole is in communication with the second recess.

[0020] The utility model is further provided with a heat dissipation hole penetrating the upper side and the lower side of the box body, and the heat dissipation hole is in communication with the channel.

[0021] The utility model further sets up, the outlet is connected with the clamping portion of U shape, one end of clamping portion is connected with the clamping spring piece, and one end of clamping spring piece is fixedly connected with clamping portion, and the other end of clamping spring piece extends downward.

[0022] The utility model discloses the beneficial effects that have adopted the technical scheme:

[0023] Firstly, by the rectangular box body and the specific thickness design, the structure strength is guaranteed while not occupying too much space, and installation in various environments is facilitated. The inlet and the outlet cooperate with the arc-shaped channel, can quickly and neatly arrange the wires, and the operation is simple and convenient, effectively solves the problems of appearance disorder, safety hazards and maintenance difficulties caused by the scattered placement of the wires.

[0024] Secondly, the multiple inlets are arranged in front of and behind each other, the outlet is arranged in left and right, and a large number of inlets correspond to a row of outlets, which can simultaneously arrange a large number of wires and meet the complex wiring requirements of intelligent systems. The inner diameter of the channel gradually increases from front to back and is coaxially arranged, which is suitable for different specifications of wires, reduces the crowding of wires, and is convenient for maintenance and replacement.

[0025] Furthermore, the grooves and the fixed connection holes on the box body can realize the fixed installation of the upper side and the left and right sides of the box body, adapt to different installation positions and equipment racks, and improve the stability and flexibility of installation.

[0026] Finally, the heat dissipation holes are communicated with the channel, can timely dissipate the heat generated by the wires, keep the internal temperature of the box body appropriate, prevent the wires from being damaged due to overheating, and improve the reliability of the system. The clamping portion and the clamping spring piece of the outlet can clamp and fix the wires, prevent the wires from loosening or falling off, and further improve the wiring stability. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0028] Figure 1 It is a structural schematic view of the utility model.

[0029] Figure 2 It is an exploded schematic view of the utility model.

[0030] Figure 3 It is a structural schematic view of the box body of the utility model Figure 1 .

[0031] Figure 4The utility model discloses a box body's structure diagram Figure 2 .

[0032] Figure 5 The utility model discloses a box body's exploded view.

[0033] Figure 6 The utility model discloses a sectional view.

[0034] Figure 7 The utility model discloses a clamping portion and the structure diagram of clamping elastic piece of schematic diagram.

[0035] The label explanation in the drawing: box body 1, inlet 2, outlet 3, passageway 4, first recess 5, second recess 6, first fixed connection hole 7, second fixed connection hole 8, third fixed connection hole 9, heat dissipation hole 10, clamping portion 11, clamping elastic piece 12. DETAILED DESCRIPTION

[0036] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0037] The following references Figures 1-7 The utility model is explained as follows:

[0038] Embodiment: a new wiring device of intelligent system, including box body 1, and box body 1 is rectangle, this design has certain advantage in space utilization. Whether be installed in wall surface, equipment cabinet interior or other specific position, the rectangle box body 1 can better adapt to different installation environment, and make full use of the limited space. The thickness is 1-2CM. This thickness guarantees that box body 1 has certain structural strength, can bear the weight of internal electric wire and possible external pressure, and also will not be too much space, so that the whole wiring device is more flexible in practical application.

[0039] Box body 1 can adopt high-strength plastic material and be made, has good insulating property, can effectively prevent the short circuit risk between electric wire, can also protect the user from electric shock injury.

[0040] The main function of box body 1 is to provide a regular space for electric wire. By containing electric wire in box body 1, various problems caused by scattered electric wire can be avoided, such as appearance disorder, safety hazard and maintenance difficulty.

[0041] The left and right sides of the box body 1 are respectively provided with wire inlet ports 2. This design of double-sided wire entry increases the flexibility of wiring, allowing the selection of wire entry from the left or right side according to actual conditions, facilitating the introduction of electrical wires. The main function of the wire inlet port 2 is to provide a channel for electrical wires to enter the box body 1. When the electrical wires extend from the wire inlet port 2, they can smoothly enter the channel inside the box body 1, achieving the regularization of the electrical wires.

[0042] The front side of the box body 1 is provided with wire outlet ports 3 corresponding to the wire inlet ports 2. This design allows the electrical wires to be drawn out from a specific location after being regularized inside the box body 1, facilitating connection with other devices of the intelligent system. The position of the wire outlet port 3 corresponds to the wire inlet port 2, ensuring that the electrical wires can be wired according to the predetermined path inside the box body 1, avoiding confusion and intersection. The main function of the wire outlet port 3 is to provide a channel for the electrical wires to exit the box body 1. When the electrical wires pass through the channel and extend from the wire outlet port 3, they can be connected with other devices of the intelligent system, achieving power and signal transmission.

[0043] The inside of the box body 1 is provided with a channel 4 that connects the corresponding wire inlet port 2 and wire outlet port 3, and the channel 4 is in the shape of a circular arc. The circular arc-shaped channel can reduce the bending radius of the electrical wires during wiring, reducing the risk of damage to the electrical wires. Especially for some thinner electrical wires or electrical wires with strict requirements on the bending radius, the circular arc-shaped channel can better protect the performance of the electrical wires. The circular arc-shaped channel can make the wiring of the electrical wires inside the box body 1 more smooth, reducing the friction and entanglement between the electrical wires, improving the efficiency and quality of wiring.

[0044] The connectivity of the channel ensures that the electrical wires can smoothly enter the inside of the box body 1 from the wire inlet port 2 and reach the wire outlet port 3 through the channel. This connectivity allows the wiring device to achieve quick regularization and guidance of the electrical wires.

[0045] The main function of the channel is to provide a regular wiring path for the electrical wires. By restricting the electrical wires inside the channel, it can avoid the random and scattered placement of the electrical wires inside the box body 1, achieving the orderly layout of the electrical wires.

[0046] The electrical wires extend from the wire inlet port 2, pass through the circular arc-shaped channel inside the box body 1, and finally extend from the wire outlet port 3. In this process, the box body 1 regularizes the electrical wires, allowing them to be arranged in an orderly manner inside the box body 1.

[0047] The wire inlet port 2, the channel, and the wire outlet port 3 form a space that can accommodate regularized electrical wires, allowing quick insertion of the electrical wires for regularization. This design is simple and convenient to operate, without the need for complex tools and techniques, and can achieve efficient wiring.

[0048] Advantages summary:

[0049] Aesthetically pleasing: By storing the wires inside the box 1, the problem of disorganized appearance caused by scattered wires is avoided, making the wiring of the intelligent system more aesthetically pleasing and neat.

[0050] Safe and reliable: The insulation material and sealing design of the box 1 can effectively prevent short circuits between wires and damage to wires from external factors, improving the safety and reliability of the wiring.

[0051] Convenient maintenance: When maintenance or troubleshooting of the intelligent system is needed, specific wires can be quickly and accurately found, greatly improving maintenance efficiency. At the same time, the neat wiring inside the box 1 also reduces the risk of misoperation during maintenance.

[0052] Strong versatility: The rectangular box 1, double-sided wire entry port 2, adjustable wire exit port 3, and circular arc-shaped channel of the wiring device can adapt to different specifications and quantities of wires, as well as different installation environments and intelligent system requirements, with strong versatility.

[0053] The left and right sides of the box 1 are respectively provided with multiple wire entry ports 2, which greatly increases the number of wires that the wiring device can accommodate. In the intelligent system, there are often a large number of wires that need to be organized, and this multi-wire entry port 2 design can meet the wiring needs of different quantities of wires.

[0054] The wire entry ports 2 on the left and right sides of the box 1 are spaced in the front-to-back direction. The front-to-back direction spaced wire entry ports 2 can avoid wires being too concentrated when entering the box 1, reducing the possibility of mutual interference and entanglement between wires. The spaced arrangement also provides more space for wire insertion, making the operation more convenient. Even in the case of relatively thick and hard wires, they can be easily inserted into the wire entry ports 2. This layout also helps with heat dissipation. When a large number of wires pass through the box 1, the spaced wire entry ports 2 can promote air circulation, reducing the risk of wire failure due to overheating.

[0055] The wire exit ports 3 on the front side of the box 1 are spaced in the left-to-right direction. Neat arrangement: The design of a row of wire exit ports 3 allows the wires extending from the box 1 to be neatly arranged, further enhancing the aesthetics of the wiring. At the same time, this neat arrangement also facilitates subsequent maintenance and management of the wires. Corresponding to the wire entry ports 2: The wire exit ports 3 correspond to the wire entry ports 2 on the left and right sides, ensuring that the wires can pass through the channel from the inside of the box 1 to the wire exit ports 3 according to the predetermined path. This correspondence makes the wiring more orderly, reducing the situation of wire crossing and confusion. Spaced arrangement: The left-to-right direction spaced wire exit ports 3 can also avoid wires being too concentrated when extending out of the box 1, reducing mutual interference between wires. The spaced arrangement also provides more space for the connection of wires and external devices, facilitating connection operations.

[0056] The left and right sides of the box body 1 are respectively provided with a plurality of wire inlet ports 2, and a corresponding row of wire outlet ports 3 is arranged on the front side. This design allows a large number of wires to be inserted from the left or right side of the box body 1, pass through the channels, and then be pulled out from the front side of the box body 1.

[0057] Efficient and orderly arrangement of a large number of wires: This layout can simultaneously arrange a large number of wires, meeting the needs of complex wiring in intelligent systems. Through the arrangement of the box body 1, the originally scattered wires become neat and orderly, improving the reliability and maintainability of the system.

[0058] Convenient management and maintenance: After the large number of wires are arranged, they are easier to identify and manage. When maintenance or troubleshooting is needed, specific wires can be quickly found, improving work efficiency.

[0059] Improve system stability: Neat and orderly wiring can reduce electromagnetic interference between wires, improve the stability and performance of intelligent systems, and reduce the probability of short circuit, open circuit and other faults caused by wire chaos.

[0060] The plurality of arc-shaped channels 4 corresponding to the wire inlet ports 2 on the right side of the box body 1 are coaxially arranged, and the inner diameter of the channels 4 gradually increases from front to back.

[0061] The plurality of arc-shaped channels 4 corresponding to the wire inlet ports 2 on the left side of the box body 1 are coaxially arranged, and the inner diameter of the channels 4 gradually increases from front to back.

[0062] The left and right sides of the lower side of the front end of the box body 1 are respectively provided with a first recess 5. The selection of this position has certain rationality. The recess at the front end can provide better support and fixing point during installation, ensuring the stability of the box body 1 after installation. The lower side of the rear end of the box body 1 is provided with a second recess 6. The recess at the rear end cooperates with the recess at the front end to provide stable support for the installation of the box body 1. The first recess 5 and the second recess 6 are mainly used to provide fixed connection points. When installing the box body 1, these recesses can accommodate fixing bolts or other connecting devices, so that the box body 1 can be firmly fixed on the installation position. The design of the recesses can also play a certain protection role. When the box body 1 is installed at the bottom or lower side of the equipment, the recesses can prevent the fixing connection device from being collided and damaged by external forces, prolonging the service life of the connecting device.

[0063] The bottoms of the first recess 5 and the second recess 6 are respectively provided with a first fixed connection hole 7 penetrating through the upper side of the box body 1. This design allows the fixing bolt to pass through the connection hole from the lower side of the box body 1 and be fixedly connected with the equipment at the installation position. This penetrating connection method can provide a more secure fixing effect, ensuring that the box body 1 will not loosen or fall off during use.

[0064] Installation method:

[0065] The box body 1 can be fixedly installed on its upper side. This installation method can install the box body 1 at the bottom or lower side of the installation position, fully utilize the space, and will not affect the normal operation of the equipment.

[0066] The bolt is connected in the first fixed connection hole 7 and is fixedly connected with the equipment of the installation position. This connection method is simple and reliable, and the installation and removal are relatively convenient.

[0067] Application scenario:

[0068] This wiring device is suitable for various intelligent systems, especially in the case of limited space, the box body 1 can be installed at the bottom or lower side of the equipment, without occupying additional space.

[0069] For example, in a home intelligent device, the box body 1 can be installed at the bottom of a TV cabinet or the lower side of a wall, and the messy wires can be stored inside the box body 1, making the living room more tidy and beautiful. In an industrial automation control system, the box body 1 can be installed at the bottom of the equipment cabinet or the lower side of the machine, providing a regular wiring space for the wires and improving the reliability and maintainability of the system.

[0070] The front ends of the left and right sides of the box body 1 are respectively provided with second fixed connection holes 8, and the selection of this position enables the box body 1 to be fixed at the front ends of the two sides, increasing the stability of the installation. The second fixed connection holes 8 are in communication with the first grooves 5, and the communication arrangement makes the installation of the fixed bolts more convenient, which can directly extend into the second fixed connection holes 8 from the grooves for fixation. The rear ends of the left and right sides of the box body 1 are respectively provided with third fixed connection holes 9, and the fixed connection holes at the rear ends of the two sides correspond to the second fixed connection holes 8 at the front ends, which jointly provide support for the fixation of the left and right sides of the box body 1. The third fixed connection holes 9 are in communication with the second grooves 6. Similar to the second fixed connection holes 8, the third fixed connection holes 9 are in communication with the second grooves 6, facilitating the installation of the fixed bolts.

[0071] Installation method:

[0072] The box body 1 can be fixedly installed on its left and right sides. The equipment rack body is provided with connection holes corresponding to the second fixed connection holes 8 and the third fixed connection holes 9, and the fixed bolts extend into the connection holes and the second fixed connection holes 8 and the third fixed connection holes 9, thereby forming a fixed installation of the box body 1.

[0073] This installation method is suitable for installing the box body 1 on the equipment rack body, fully utilizing the structure of the rack body for fixation, improving the stability and reliability of the installation.

[0074] Advantages:

[0075] Multi-directional fixing: By setting fixing connection holes on both sides and the front and rear ends of the box body 1, multi-directional fixing installation is achieved. This multi-directional fixing can better adapt to different installation environments and stress conditions, ensuring that the box body 1 does not loosen or shift during use.

[0076] High flexibility: This fixed installation allows the box body 1 to choose different installation positions and angles according to actual needs. For example, the box body 1 can be installed horizontally on the equipment rack body or vertically on the wall, meeting the wiring needs of different intelligent systems.

[0077] Convenient maintenance: When maintenance or replacement of the box body 1 is needed, only the fixing bolts need to be removed, which is simple and convenient. At the same time, multi-directional fixing makes the box body 1 more stable during maintenance, reducing the risk of accidental damage.

[0078] The box body 1 is provided with a heat dissipation hole 10 penetrating through its upper and lower sides, which is in communication with the channel 4. This penetrating design ensures that air can flow freely inside the box body 1, effectively dissipating heat. The position of the heat dissipation hole 10 is also carefully considered. Since there are a large number of wires passing through the channel inside the box body 1, these wires will generate some heat during operation. By setting the heat dissipation hole 10 in communication with the channel, the heat in the channel can be directly dissipated, improving the heat dissipation efficiency.

[0079] Heat dissipation: In intelligent systems, wires generate heat during power and signal transmission. If this heat is not dissipated in time, it will cause the temperature inside the box body 1 to rise, affecting the performance and lifespan of the wires. The heat dissipation hole 10 can effectively dissipate the heat inside the box body 1, keeping the temperature inside the box body 1 within a reasonable range and ensuring the normal operation of the wires.

[0080] Ventilation: The heat dissipation hole 10 also serves as a ventilation function. Through air circulation, the humid air inside the box body 1 can be discharged, preventing the wires from rusting due to moisture. At the same time, ventilation can also reduce the accumulation of dust and impurities inside the box body 1, keeping the inside of the box body 1 clean.

[0081] The outlet 3 is connected with a U-shaped clamping part 11, which is clamped on the side wall of the outlet 3. This installation method is simple and convenient, and can also ensure the firm and reliable connection between the clamping part 11 and the outlet 3. One end of the clamping part 11 is connected with a clamping spring 12, one end of which is fixedly connected with the clamping part 11, and the other end extends downward. This elastic property allows the clamping spring 12 to deform within a certain range, thereby adapting to wires of different diameters.

[0082] After wiring is completed through the box body 1, the clamping part 11 and the clamping spring 12 are inserted into the outlet 3. At this time, the clamping spring 12 will elastically abut on the electric wire under the elastic action, forming clamping and fixing of the electric wire.

[0083] This clamping and fixing mode can effectively prevent the electric wire from loosening or falling off due to external force pulling in the use process, improving the stability and reliability of wiring.

[0084] Advantages:

[0085] Simple and convenient operation: the installation and use of the clamping part 11 and the clamping spring 12 are very simple, only need to insert them into the outlet 3 to complete the clamping and fixing of the electric wire. This simple operation mode can improve the efficiency of wiring, reduce the installation time and cost.

[0086] Strong adaptability: the elastic property of the clamping spring 12 makes it can adapt to electric wires of different diameters, improving the universality and adaptability of the outlet 3.

[0087] High stability: clamping and fixing can effectively prevent the electric wire from loosening or falling off, improving the stability and reliability of wiring. In the process of equipment operation, the electric wire will not loosen or fall off due to external force pulling, thereby ensuring the normal operation of the system.

[0088] The above only describes the preferred embodiments of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A novel wiring device for an intelligent system, comprising a housing (1), characterized in that: The box (1) has inlet ports (2) on its left and right sides respectively, and outlet ports (3) corresponding to the inlet ports (2) on its front side. The box (1) has a channel (4) inside that connects the corresponding inlet ports (2) and outlet ports (3). The channel (4) is arc-shaped. The box (1) has multiple inlet ports (2) on its left and right sides respectively. The inlet ports (2) on the left and right sides of the box (1) are spaced apart in the front-back direction. The outlet ports (3) on the front side of the box (1) are spaced apart in the left-right direction. The lower side of the front end of the box (1) has a first groove (5) on its left and right sides respectively. The lower side of the rear end of the box (1) has a second groove (6). The bottom of the first groove (5) and the second groove (6) has a first fixed connection hole (7) penetrating the upper side of the box (1) respectively.

2. The novel wiring device for an intelligent system according to claim 1, characterized in that: Multiple arc-shaped channels (4) corresponding to the cable inlet (2) on the right side of the box (1) are coaxially arranged, and the inner diameter of the channels (4) gradually increases from front to back.

3. The novel wiring device for an intelligent system according to claim 1, characterized in that: Multiple arc-shaped channels (4) corresponding to the cable inlet (2) on the left side of the box (1) are coaxially arranged, and the inner diameter of the channels (4) gradually increases from front to back.

4. The novel wiring device for an intelligent system according to claim 1, characterized in that: The front ends of the left and right sides of the box body (1) are respectively provided with second fixed connection holes (8), and the second fixed connection holes (8) are connected to the first groove (5). The rear ends of the left and right sides of the box body (1) are respectively provided with third fixed connection holes (9), and the third fixed connection holes (9) are connected to the second groove (6).

5. A novel wiring device for an intelligent system according to claim 1, characterized in that: The box body (1) is provided with heat dissipation holes (10) that run through its upper and lower sides, and the heat dissipation holes (10) are connected to the channel (4).

6. A novel wiring device for an intelligent system according to claim 1, characterized in that: The outlet (3) is connected to a U-shaped clamping part (11). One end of the clamping part (11) is connected to a clamping spring (12). One end of the clamping spring (12) is fixedly connected to the clamping part (11), and the other end of the clamping spring (12) extends downward.

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