Grounding device for contact network

Abstract

The utility model relates to the technical field of electric power system maintenance, in particular to a grounding device for a contact network, which comprises a hook-shaped piece with conductive performance, a connecting wire, a grounding needle and a supporting rod, and is characterized in that the hook-shaped piece comprises a connecting part, a first mounting part and a second mounting part, and the first mounting part and the second mounting part are arranged at an interval; the first end of the first mounting part is connected with the first end of the second mounting part through the connecting part, and the grounding pin is connected with the hook-shaped piece through the connecting wire; the supporting rod is connected with the end, away from the connecting part, of the first mounting part, at least one of the first mounting part and the second mounting part is provided with an elastic sealing assembly, and the elastic sealing assembly is used for movably sealing the hook-shaped piece so as to limit the high-voltage transmission line. According to the grounding device, the hook-shaped piece is closed by arranging the elastic closing assembly, when the hook-shaped piece is hung on the electric wire, the electric wire can be limited in a closed space, the grounding device is not easy to separate from the high-voltage transmission line under the influence of wind power, and the possibility of falling off is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power system maintenance, and particularly to a grounding device for a catenary. Background Art

[0002] The catenary is a high-voltage transmission line that is erected in a zigzag pattern above the rails in an electrified railway for the pantograph to draw current. The catenary is the main framework of the railway electrification project and is a special form of transmission line that is erected above the railway line to supply power to electric locomotives. When the catenary needs to be repaired, to prevent damage to the insulator on the surface of the high-voltage transmission line and in the case of live electricity, the strong current in the high-voltage transmission line passes through the human body, causing human safety problems. It is necessary to connect the transmission line on the catenary to the grounding device. In the case of human electric shock, the grounding needle on the grounding device can conduct the current to the ground, so that the current passing through the human body will be much smaller, thus ensuring the life safety of the human body.

[0003] The connection part between the existing grounding device and the high-voltage transmission line of the catenary is arranged in a U shape. When connecting, the U-shaped opening part is hung on the transmission line, and the current passes through the U-shaped connection part and enters the ground along the grounding needle. However, this grounding device cannot limit the high-voltage transmission line. When affected by wind, the grounding device is prone to shake on the outer wall of the high-voltage transmission line, resulting in the grounding device being easily detached from the high-voltage transmission line. Summary of the Utility Model

[0004] The present disclosure provides a grounding device for a catenary to improve the problem that the grounding device is prone to shake when affected by wind, resulting in the grounding device being easily detached from the high-voltage transmission line in the above background art.

[0005] In a first aspect, the present disclosure provides a grounding device for a catenary, including a hook-shaped member with conductive properties, a connecting wire, a grounding needle, and a support rod:

[0006] The hook-shaped member includes a connecting portion and a first mounting portion and a second mounting portion arranged at intervals. The first end of the first mounting portion and the first end of the second mounting portion are connected through the connecting portion. The grounding needle is connected to the hook-shaped member through the connecting wire; the support rod is connected to the end of the first mounting portion away from the connecting portion,

[0007] At least one of the first mounting portion and the second mounting portion is provided with an elastic closing assembly, and the elastic closing assembly is configured as:

[0008] The elastic closing assembly includes a closing member and an elastic member. The first end of the closing member is connected to the first end of the elastic member. The second end of the elastic member is connected to the first mounting portion. The second end of the closing member is movably abutted against the second mounting portion;

[0009] or

[0010] There are two elastic sealing components, and the elastic sealing components include a first elastic sealing component and a second elastic sealing component;

[0011] The first elastic closing component includes a first closing member and a first elastic member, the first end of the first closing member is connected to the first end of the first elastic member, and the second end of the first elastic member is connected to the first mounting portion. The second elastic closing component includes a second closing member and a second elastic member, the first end of the second closing member is connected to the first end of the second elastic member, the second end of the second elastic member is connected to the second mounting portion, and the second end of the first closing member is movably abutted against the second end of the second closing member.

[0012] In one embodiment, a first inclined surface is provided on a side of the second end of the closure member close to the support rod, and the first inclined surface is configured to gradually narrow the closure member in a direction from the first end of the closure member to the second end of the closure member.

[0013] In one embodiment, a second slope is provided on a side of the second end of the closure member facing away from the first slope, and the second slope is configured to gradually narrow the closure member in a direction from the first end to the second end of the closure member.

[0014] In one embodiment, the elastic member includes a mounting seat and an elastic telescopic rod, the mounting seat is provided with a mounting groove, the elastic telescopic rod is fixedly arranged in the mounting groove, one end of the elastic telescopic rod is connected to the closing member, and the closing member is at least partially arranged in the mounting groove and slidingly cooperates with the side wall of the mounting groove.

[0015] In one embodiment, the support rod has a telescopic rod structure.

[0016] In one embodiment, the support rod includes a first connecting rod and a second connecting rod, the first connecting rod is provided with a connecting groove, the side wall of the connecting groove is provided with a first threaded structure, the second connecting rod is provided with a second threaded structure, the second connecting rod is at least partially provided in the connecting groove and the first threaded structure is threadedly connected to the second threaded sleeve structure, and the second connecting rod is connected to the end of the first mounting part away from the connecting part.

[0017] In one embodiment, the first thread structure is a nut, and the nut is fixed in the connecting groove.

[0018] In one embodiment, a rotation limiting portion is provided at one end of the second connecting rod away from the first mounting portion.

[0019] In one embodiment, the hook-shaped member is U-shaped.

[0020] In one embodiment, an insulating sleeve is provided at one end of the support rod away from the connecting portion.

[0021] A grounding device for a catenary provided by the present disclosure closes the hook-shaped member by providing an elastic closing assembly on the hook-shaped member. When the hook-shaped member is hung on the wire, the wire can be restricted within the closed space. When affected by wind force, it is not easy for the grounding device to separate from the high-voltage transmission wire, reducing the possibility of falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Hereinafter, the present disclosure will be described in more detail based on embodiments with reference to the drawings:

[0023] Figure 1 Schematic diagram of a grounding device for a catenary provided by an embodiment of the present disclosure;

[0024] Figure 2 Cross-sectional view of a grounding device for a catenary provided by an embodiment of the present disclosure;

[0025] Figure 3 For Figure 2 Enlarged view of the structure of part A in

[0026] Figure 4 For Figure 2 Enlarged view of the structure of part B in

[0027] Description of reference numerals: 100, hook-shaped member; 200, connecting wire; 300, grounding pin; 400, support rod; 410, first connecting rod; 411, first thread structure; 420, second connecting rod; 421, second thread structure; 422, rotation limiting portion; 500, elastic closing assembly; 510, closing member; 511, first inclined surface; 512, second inclined surface; 520, elastic member; 521, mounting seat; 522, elastic telescopic rod; 600, insulating sleeve.

[0028] In the drawings, the same components are denoted by the same reference numerals, and the drawings are not drawn to actual scale. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To enable those skilled in the art to better understand the technical solutions of the present disclosure, and to fully understand how the present disclosure applies technical means to solve technical problems and the implementation process of achieving corresponding technical effects and to implement accordingly, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part rather than all of the embodiments of the present disclosure. The embodiments of the present disclosure and each feature in the embodiments can be combined with each other on the premise of not conflicting, and the formed technical solutions are all within the protection scope of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0031] Figure 1 A schematic diagram of a grounding device for a catenary provided for an embodiment of the present disclosure. As Figure 1 shown, a grounding device for a catenary includes a hook-shaped member 100 with electrical conductivity, a connecting wire 200, a grounding needle 300, and a support rod 400:

[0032] The hook-shaped member 100 includes a connecting portion and a first mounting portion and a second mounting portion arranged at intervals. The first end of the first mounting portion is connected to the first end of the second mounting portion through the connecting portion. The grounding needle 300 is connected to the hook-shaped member 100 through the connecting wire 200; the support rod 400 is connected to the end of the first mounting portion away from the connecting portion,

[0033] At least one of the first mounting portion and the second mounting portion is provided with an elastic closing assembly 500, and the elastic closing assembly 500 is configured as:

[0034] As Figure 2 and Figure 3 shown, the elastic closing assembly 500 includes a closing member 510 and an elastic member 520. The first end of the closing member 510 is connected to the first end of the elastic member 520. The second end of the elastic member 520 is connected to the first mounting portion. The second end of the closing member 510 is movably abutted against the second mounting portion;

[0035] Or

[0036] The number of the elastic sealing assemblies 500 is two, and the elastic sealing assemblies 500 include a first elastic sealing assembly and a second elastic sealing assembly;

[0037] The first elastic sealing assembly includes a first sealing member and a first elastic member. The first end of the first sealing member is connected to the first end of the first elastic member, and the second end of the first elastic member is connected to the first mounting portion. The second elastic sealing assembly includes a second sealing member and a second elastic member. The first end of the second sealing member is connected to the first end of the second elastic member, and the second end of the second elastic member is connected to the second mounting portion. The second end of the first sealing member is movably abutted against the second end of the second sealing member.

[0038] In this embodiment, the hook member 100 is used to hook the high-voltage transmission line. After hooking the high-voltage transmission line, the current is guided to the connecting wire 200 and finally introduced into the ground through the grounding pin 300. In this embodiment, the first mounting portion, the second mounting portion and the connecting portion are integrally formed. The hook member 100 can be made of a metal material with high strength, corrosion resistance and excellent electrical conductivity, such as copper alloy or stainless steel, to ensure the structural stability and electrical continuity.

[0039] In one embodiment, the hook member 100 is arranged in a U shape. The U-shaped structure makes the first mounting portion and the second mounting portion symmetrically arranged, so as to better maintain the structural stability and adapt to different installation environments and catenary structures.

[0040] The sealing member 510 is a key component in the elastic sealing assembly 500. Its material needs to have sufficient flexibility and wear resistance, and spring steel or stainless steel can be selected. The sealing member 510 is designed to be able to closely fit on the second mounting portion to form an effective electrical connection and mechanical seal, preventing external environmental factors (such as moisture, corrosion, etc.) from eroding the internal structure. The first end of the sealing member 510 is connected to the elastic member 520, and the dynamic contact with the second mounting portion is realized through the elastic force of the elastic member 520. The elastic member 520 is the key to providing the elastic force required by the sealing member 510. It can be made of materials such as springs or elastic rubbers. The sufficient elastic force range needs to be considered to ensure that the sealing member 510 can maintain a stable contact pressure under different working conditions, and at the same time avoid damage caused by being too tight or poor contact caused by being too loose. The second end of the elastic member 520 can be installed on the first mounting portion by means of welding or bolt fixation to ensure its stability and reliability during long-term use.

[0041] In one embodiment, the first end of the closure member 510 is connected to the first end of the elastic member 520, the second end of the elastic member 520 is connected to the first mounting portion, and the second end of the closure member 510 is movably abutted against the second mounting portion. That is, when the second end of the elastic closure assembly 500 abuts against the second mounting portion, the hook member 100 and the elastic closure assembly 500 jointly form a closed space, and the high-voltage transmission line is restricted within a limited range of movement through this closed space, so that the hook member 100 is not likely to shake and fall. Specifically, the elastic closure assembly 500 moves away from the second mounting portion under an external force, so that the high-voltage transmission line can smoothly enter the middle of the hook member 100, and then the elastic closure member 510 returns to its normal state and abuts against the second mounting portion, thus forming a closed space.

[0042] In one embodiment, the number of the elastic closure assemblies 500 is two, and the elastic closure assembly 500 includes a first elastic closure assembly and a second elastic closure assembly; the first elastic closure assembly includes a first closure member and a first elastic member, the first end of the first closure member is connected to the first end of the first elastic member, the second end of the first elastic member is connected to the first mounting portion, the second elastic closure assembly includes a second closure member and a second elastic member, the first end of the second closure member is connected to the first end of the second elastic member, the second end of the second elastic member is connected to the second mounting portion, and the second end of the first closure member is movably abutted against the second end of the second closure member. That is, elastic closure members 510 are respectively arranged on the first mounting portion and the second mounting portion, and the two elastic closure members 510 abut against each other to form a closed space and restrict the high-voltage transmission line within a limited space range.

[0043] As a medium for current transmission, the connecting wire 200 needs to have excellent electrical conductivity and sufficient mechanical strength. One end of it is connected to the hook member 100 (usually the connecting portion), and the other end is connected to the grounding pin 300. The connecting wire 200 may be made of stranded copper wire or special alloy wire to ensure the efficiency and safety of current transmission. In addition, the connecting wire 200 may also be provided with an insulating layer to prevent current leakage and the risk of electric shock. The grounding pin 300 is the part directly inserted into the ground in the grounding device and is used to conduct current into the earth. The grounding pin 300 is usually made of a metal material with high electrical conductivity and corrosion resistance, such as copper or galvanized steel, to ensure good grounding effect. The length and diameter of the grounding pin 300 need to be adjusted according to specific site conditions, and are not specifically limited here.

[0044] The support rod 400 in this embodiment can be made of high-strength steel or alloy material and is subjected to anti-corrosion treatment through a special process. One end of the support rod 400 is connected to one end of the first mounting portion away from the connecting portion, and the other end can be fixed on the catenary pole or other fixed structures. The design of the support rod 400 needs to consider the requirements for easy installation, maintenance, and adjustment.

[0045] As Figure 2 and Figure 3 shown, in one embodiment, an insulating sleeve 600 is provided at one end of the support rod 400 away from the connecting portion to further improve the safety of use and reduce the harm caused by electric leakage to the human body during use.

[0046] When the grounding device of this embodiment is in use, first put on the protective device. Then, insert one end of the grounding needle 300 into the ground, and then hold the support rod 400 and move the hook-shaped member 100 in the direction close to the high-voltage transmission line. When the hook-shaped member 100 moves to the point where the elastic closing assembly 500 contacts the high-voltage transmission line, then hold the support rod 400 and move the hook-shaped member 100 in the opposite direction, so that the high-voltage transmission line exerts a force on the closing member 510, causing the elastic member 520 to deform and drive the closing member 510 to deform, so that the closing member 510 no longer closes the hook-shaped member 100. At this time, the high-voltage transmission line can enter the middle part of the hook-shaped member 100. When the high-voltage transmission line leaves the elastic closing assembly 500, the elastic closing assembly 500 returns to its original state and closes the hook-shaped member 100, finally restricting the high-voltage transmission line in a closed space. When the insulator on the surface of the high-voltage transmission line is damaged, the strong current in the high-voltage transmission line is led to the ground through the hook-shaped member 100 and the grounding needle 300, so that the current passing through the human body will be much smaller, thus effectively ensuring the life safety of the human body.

[0047] In summary, a grounding device for a catenary provided in this embodiment realizes flexible closing of the hook-shaped member 100 by providing an elastic closing assembly 500 on the hook-shaped member 100. When the hook-shaped member 100 is hung on the wire, the wire can be restricted in a closed space. When affected by wind, it is not easy for the grounding device to separate from the high-voltage transmission line, reducing the possibility of falling off.

[0048] As Figure 3 shown, in one embodiment, a first inclined surface 511 is provided on one side of the second end of the closing member 510 close to the support rod 400, and the first inclined surface 511 is configured to gradually narrow the closing member 510 in the direction from the first end to the second end of the closing member 510.

[0049] In this embodiment, the first inclined surface 511 is used to better guide the high-voltage transmission line into the enclosed space. Specifically, during use, after the first inclined surface 511 is abutted against the high-voltage transmission line, the grounding device is pulled downward, so that the high-voltage transmission line generates an upward acting force on the first inclined surface 511. At this time, after this acting force acts on the first inclined surface 511, a component force will be generated in the direction away from the second mounting portion, so that the elastic member 520 retracts better in the direction away from the second mounting portion, and drives the closing member 510 to gradually move away from the second mounting portion. Therefore, as the grounding device is continuously pulled downward, the high-voltage transmission line gradually approaches the second end of the closing member 510 along the first inclined surface 511, and at the same time, the second end of the closing member 510 also gradually moves away from the second mounting portion, and finally the high-voltage transmission line enters the middle of the hook-shaped member 100 from the gap between the second end of the closing member 510 and the second mounting portion. After the high-voltage transmission line loses contact with the first inclined surface 511, the acting force acting on the first inclined surface 511 disappears, and the elastic member 520 returns to its original state, so that the closing member 510 continues to abut against the second mounting portion to complete the limiting of the high-voltage transmission line.

[0050] As Figure 3 shown, in one embodiment, a second inclined surface 512 is provided on a surface of the second end of the closing member 510 facing away from the first inclined surface 511, and the second inclined surface 512 is configured to make the closing member 510 gradually narrow in the direction from the first end to the second end of the closing member 510.

[0051] In this embodiment, in order to more conveniently remove the hook-shaped member 100 or the second device, the second inclined surface 512 is provided to better guide the high-voltage transmission line out of the enclosed space. Specifically, when removing the grounding device, hold the support rod 400 and move the hook-shaped member 100 upward, so that the second inclined surface 512 abuts against the high-voltage transmission line. At this time, as the hook-shaped member 100 moves upward, a downward acting force will be generated on the second inclined surface 512. This acting force generates a component force in the direction away from the second mounting portion, so that the elastic member 520 retracts better in the direction away from the second mounting portion, and drives the closing member 510 to gradually move away from the second mounting portion. Therefore, as the grounding device is continuously moved upward, the high-voltage transmission line gradually approaches the second end of the closing member 510 along the second inclined surface 512, and at the same time, the second end of the closing member 510 also gradually moves away from the second mounting portion, and finally the high-voltage transmission line leaves the middle of the hook-shaped member 100 through the gap between the second end of the closing member 510 and the second mounting portion.

[0052] In one embodiment, the closing member 510 is provided with both the first inclined surface 511 and the second inclined surface 512, so that the installation and removal of the grounding device become smoother.

[0053] In one embodiment, the second ends of the first closure member and the second closure member are both provided with a first inclined surface 511 and / or a second inclined surface 512, so that the process of the first closure member approaching and separating from the second closure member is smoother.

[0054] As Figure 3 shown, in one embodiment, the elastic member 520 includes a mounting base 521 and an elastic telescopic rod 522. The mounting base 521 is provided with a mounting groove. The elastic telescopic rod 522 is fixedly arranged in the mounting groove. One end of the elastic telescopic rod 522 is connected to the closure member 510. At least part of the closure member 510 is arranged in the mounting groove and is in sliding fit with the side wall of the mounting groove.

[0055] In this embodiment, the mounting base 521 provides a stable mounting foundation for the elastic telescopic rod 522, ensuring that the elastic telescopic rod 522 can maintain a relatively stable position when subjected to an external force and is not easily displaced or loosened. At least part of the closure member 510 is arranged in the mounting groove and is in sliding fit with the side wall of the mounting groove, so that the closure member 510 can smoothly move along the side wall of the mounting groove when subjected to an external force, making the telescopic process of the closure member 510 more stable, and further making the structure and performance of the entire grounding device more stable.

[0056] In one embodiment, the structure of the support rod 400 is a telescopic rod structure.

[0057] In this embodiment, the structure of the support rod 400 is a telescopic rod structure, enabling the grounding device to flexibly adapt to installation requirements at different heights and further improving the practicality of the grounding device.

[0058] As Figure 2 and Figure 4 shown, in one embodiment, the support rod 400 includes a first connecting rod 410 and a second connecting rod 420. The first connecting rod 410 is provided with a connecting groove. The side wall of the connecting groove is provided with a first thread structure 411. The second connecting rod 420 is provided with a second thread structure 421. At least part of the second connecting rod 420 is arranged in the connecting groove and the first thread structure 411 is in threaded connection with the second thread sleeve structure. The second connecting rod 420 is connected to one end of the first mounting portion away from the connecting portion.

[0059] In this embodiment, a connection groove is provided inside the first connecting rod 410. The connection groove is used to accommodate the second connecting rod 420 and realize the connection and telescopic functions of the two. A first thread structure 411 is provided on the side wall of the connection groove, and a second thread structure 421 matching the first thread structure 411 on the first connecting rod 410 is provided on the second connecting rod 420. The second connecting rod 420 is at least partially inserted into the connection groove of the first connecting rod 410, and the second connecting rod 420 is firmly installed and telescopically adjusted in the connection groove through the threaded connection of the first thread structure 411 and the second thread structure 421. This connection method is not only firm and reliable, but also convenient for users to adjust the length of the support rod 400 as needed. The user only needs to rotate the second connecting rod 420 to realize the telescoping of the connecting rod through the interaction of the threads.

[0060] As Figure 4 shown, in one embodiment, the first thread structure 411 is a nut, and the nut is fixed in the connection groove.

[0061] In this embodiment, a nut is used as the first thread structure 411. The cooperation between the nut and the thread can provide a firm fastening force to ensure that the second connecting rod 420 is stable and immovable in the connection groove. Nuts usually have high hardness and wear resistance, and can withstand large torques and repeated tightening stresses, thereby extending the service life of the support rod 400. In addition, during long-term use, if the nut or the threaded part is worn or damaged, the user can easily replace or repair it. As a standard part, nuts are easy to purchase products of the same specifications and models in the market, which is convenient for users to replace when needed, reducing the maintenance cost and time.

[0062] As Figure 2 shown, in one embodiment, a rotation limiting portion 422 is provided at one end of the second connecting rod 420 away from the first mounting portion.

[0063] In this embodiment, the width of the rotation limiting portion 422 is greater than the radial length of the first thread, so that the second connecting rod 420 can be adjusted within a preset length range and will not rotate out of the connection groove, making it more convenient to use.

[0064] It should be noted that in this disclosure, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of another identical element in the article or device including the element.

[0065] Although the embodiments disclosed in the present disclosure are as above, the above content is only an embodiment adopted for the convenience of understanding the present disclosure and is not intended to limit the present disclosure. Any person skilled in the art within the technical field to which the present disclosure pertains may make any modifications and changes in the form of implementation and details without departing from the spirit and scope disclosed in the present disclosure. However, the scope of patent protection of the present disclosure shall still be subject to the scope defined by the appended claims.

Claims

1. A grounding device for a catenary, characterized in that, It includes a hook-shaped piece with conductive properties, a connecting wire, a grounding pin and a support rod: The hook-shaped member includes a connecting portion and a first mounting portion and a second mounting portion spaced apart from each other. The first end of the first mounting portion is connected to the first end of the second mounting portion via the connecting portion. The grounding pin is connected to the hook-shaped member via the connecting wire. The support rod is connected to an end of the first mounting portion away from the connecting portion. At least one of the first mounting portion and the second mounting portion is provided with an elastic sealing component, and the elastic sealing component is configured as follows: The elastic sealing assembly includes a sealing member and an elastic member, wherein a first end of the sealing member is connected to a first end of the elastic member, a second end of the elastic member is connected to the first mounting portion, and a second end of the sealing member is movably abutted against the second mounting portion; or There are two elastic sealing components, and the elastic sealing components include a first elastic sealing component and a second elastic sealing component; The first elastic closing component includes a first closing member and a first elastic member, the first end of the first closing member is connected to the first end of the first elastic member, and the second end of the first elastic member is connected to the first mounting portion. The second elastic closing component includes a second closing member and a second elastic member, the first end of the second closing member is connected to the first end of the second elastic member, the second end of the second elastic member is connected to the second mounting portion, and the second end of the first closing member is movably abutted against the second end of the second closing member.

2. The device according to claim 1, characterized in that, A first inclined surface is provided on a surface of the second end of the closure member close to the support rod, and the first inclined surface is configured to gradually narrow the closure member in a direction from the first end of the closure member to the second end of the closure member.

3. The device according to claim 2, characterized in that, A second slope is provided on a side of the second end of the closure member facing away from the first slope, and the second slope is configured to gradually narrow the closure member in a direction from the first end to the second end of the closure member.

4. The device according to claim 1, wherein The elastic member includes a mounting seat and an elastic telescopic rod. The mounting seat is provided with a mounting groove. The elastic telescopic rod is fixedly arranged in the mounting groove. One end of the elastic telescopic rod is connected to the closing member. The closing member is at least partially arranged in the mounting groove and slidingly cooperates with the side wall of the mounting groove.

5. The device according to claim 1, characterized in that, The structure of the support rod is a telescopic rod structure.

6. The device according to claim 5, characterized in that, The support rod includes a first connecting rod and a second connecting rod, the first connecting rod is provided with a connecting groove, the side wall of the connecting groove is provided with a first threaded structure, the second connecting rod is provided with a second threaded structure, the second connecting rod is at least partially provided in the connecting groove and the first threaded structure is threadedly connected to the second threaded sleeve structure, and the second connecting rod is connected to the end of the first mounting part away from the connecting part.

7. The device according to claim 6, characterized in that, The first thread structure is a nut, and the nut is fixed in the connecting groove.

8. The device according to claim 6, characterized in that, A rotation limiting portion is provided at one end of the second connecting rod away from the first mounting portion.

9. The device according to claim 1, characterized in that, The hook-shaped member is arranged in a U shape.

10. The device according to any one of claims 1-9, characterized in that An insulating sleeve is provided at one end of the support rod away from the connecting portion.

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