An end structure for a waterproof busbar trunking

By designing a combination of sealing and heat dissipation mechanisms, the problems of unstable sealing and water leakage at the ends of the waterproof busbar trunking were solved, achieving better sealing and heat dissipation performance and simplifying the installation process.

CN224289215UActive Publication Date: 2026-05-26WUHAN HUAYUAN ELECTRICAL EQUIP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN HUAYUAN ELECTRICAL EQUIP CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing waterproof busbar trunking suffers from problems such as unstable sealing at the ends and in the connection structure, easy water seepage, complex installation, and potential water seepage risks.

Method used

An end structure including a sealing mechanism, a protective shell, a heat dissipation mechanism, and a fixing mechanism was designed. By cooperating with the sealing side seat and the sealing top seat, a better sealing effect is achieved by using the sealing gasket to press tightly. And by combining the cooling fan and the heat-conducting baffle, effective heat dissipation and sealing are achieved.

Benefits of technology

The sealing performance of the busbar trunking has been improved, reducing the risk of water leakage, simplifying the installation process, and effectively reducing the temperature at the connection points through the heat dissipation mechanism, thus enhancing the overall waterproof performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the technical field of waterproof busbar trunking, specifically relating to an end structure of a waterproof busbar trunking, including a busbar trunking shell and a busbar body installed inside the busbar trunking shell. The end of the busbar trunking shell is connected to a protective shell via a sealing mechanism. The sealing mechanism is tightly pressed against the outside of the busbar body. The sealing mechanism includes a fixing seat installed on the busbar trunking shell, a sealing top seat integrally formed on one side of the fixing seat, and sealing side seats installed on the sealing top seat and the fixing seat. A sealing gasket is provided on one side of the sealing side seat and the sealing top seat, and the sealing gasket is tightly pressed against the busbar body. Through the designed sealing mechanism, during use, the sealing side seat and the sealing top seat are connected to one end of the busbar trunking shell, sealing the end of the busbar trunking shell and the outside of the busbar body. The tight pressure of the sealing gasket ensures a better sealing effect.
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Description

Technical Field

[0001] This utility model belongs to the technical field of waterproof busbar trunking, and specifically relates to an end structure of a waterproof busbar trunking. Background Technology

[0002] With the development of power transmission and distribution systems, waterproof busbar trunking, with its compact structure, lightweight design, and convenient installation, has gradually replaced traditional cables and become the preferred solution for indoor low-voltage power transmission trunk lines. However, existing waterproof busbar trunking still faces significant technical bottlenecks in practical applications, especially in terms of end sealing and connection structures, which urgently need improvement.

[0003] Currently, most waterproof busbar trunking systems on the market use busbar connectors to connect adjacent busbar sections. However, these connectors have the following drawbacks: First, the joint between the busbar and the end of the busbar trunking housing often suffers from unstable waterproofing due to unreasonable sealing structure design (such as a single rubber gasket or insufficient mechanical crimping). After long-term use, water leakage is likely to occur due to material aging or vibration loosening, leading to decreased insulation performance and even short circuit risk. Second, the end connection requires external connectors for auxiliary fixation, which not only increases installation complexity but also increases the number of sealing interfaces due to the assembly of multiple components, further exacerbating the risk of water leakage.

[0004] Therefore, it is necessary to design an end structure for the waterproof busbar trunking to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an end structure for a waterproof busbar trough to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an end structure of a waterproof busbar trunking, comprising a busbar trunking shell and a busbar body installed inside the busbar trunking shell, wherein a protective shell is connected to the end of the busbar trunking shell through a sealing mechanism, the sealing mechanism is pressed tightly against the outside of the busbar body, a heat dissipation mechanism is provided on one side of the protective shell, and a fixing mechanism is provided in the middle of the protective shell.

[0007] The fixing mechanism includes a fixing rod installed inside the protective housing. One end of the fixing rod is provided with a fixing screw head. One end of the fixing screw head passes through the protective housing and is fixedly installed with a fixing knob. A fixing nut is screwed onto the outside of the fixing screw head. A pressure plate is fixedly installed on one side of the fixing nut. The outside of the fixing rod is slidably installed on the inside of the heat-conducting partition through a mounting hole.

[0008] The sealing mechanism includes a fixed seat installed on the outer shell of the busbar trunking. A sealing top seat is integrally formed on one side of the fixed seat. A sealing side seat is installed on the sealing top seat and the fixed seat. A sealing gasket is provided on one side of the sealing side seat and the sealing top seat. The sealing gasket is pressed tightly against the busbar body.

[0009] Preferably, the sealing side seat is L-shaped, with connecting grooves at both ends and a connecting protrusion on one side of the sealing top seat, and the connecting protrusion and the connecting groove engage with each other.

[0010] Preferably, a mounting bracket is fixedly installed on one side of the sealing top seat by screws, and a locking groove is provided on the inner side of the mounting bracket, which engages with the outer side of the busbar body.

[0011] Preferably, the protective housing includes a protective side plate and a protective cover plate fixedly mounted on the protective side plate by bolts, and the two ends of the protective side plate are fixedly mounted on the sealing top seat and the sealing side seat by screws.

[0012] Preferably, the end of the protective cover is engaged with the sealing top seat, and the edge of the protective cover is engaged with the outside of the protective side plate.

[0013] Preferably, the busbar trunking housing includes a mounting plate and a fixed side plate that is fixedly mounted on the mounting plate by bolts. The surface of the fixed side plate is provided with heat sinks, and the inner side of the fixed side plate is provided with an inner partition plate that engages with the busbar body.

[0014] Preferably, sealing corrugations are provided at both ends of the fixed side plate and on the inner side of the mounting plate, and the mounting plate and the fixed side plate are interlocked by the sealing corrugations, and a sealing strip is provided between the fixed side plate and the mounting plate.

[0015] Preferably, the heat dissipation mechanism includes a heat dissipation cavity formed inside the protective shell and a filter screen installed inside the heat dissipation cavity. A cooling fan is installed inside the heat dissipation cavity, and a vent is provided on the outside of the protective shell. The filter screen is located between the cooling fan and the vent. One side of the heat dissipation cavity is connected to the interior of a heat-conducting partition through a connecting pipe.

[0016] Preferably, the inner side of the heat-conducting partition is provided with a heat dissipation channel, and the inner wall of the heat dissipation channel is provided with heat-conducting capillary protrusions. The surface of the heat-conducting partition is provided with a connecting plate, and the main busbars are electrically connected to each other through the connecting plate. The inner side of the protective shell is fixedly installed with a guide rail by screws, and the heat-conducting partition is slidably installed on the guide rail.

[0017] Preferably, a sliding column is installed on the inner side of the sealing gasket, and sliding cavities are opened on the inner sides of both the sealing top seat and the sealing side seat. A support spring is installed on the inner side of the sliding cavity, and one end of the sliding column is slidably installed in the sliding cavity and presses on the support spring.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. Through the designed sealing mechanism, during use, the sealing side seat and sealing top seat are connected to one end of the busbar trunking shell. The sealing side seat and sealing top seat seal the end of the busbar trunking shell and the outside of the busbar body. The sealing effect is better ensured by the tight pressure of the sealing gasket.

[0020] 2. Through the designed protective housing, the protective cover and protective side plate are fixedly installed on the outside of the sealing top seat during use, thereby wrapping and sealing the busbar body and busbar connector, making the busbar better sealed.

[0021] 3. Through the designed heat dissipation and fixing mechanisms, the fixing nuts of the fixing mechanism are pressed onto the main body of the busbar during use. With the separation of the heat-conducting baffle and the connection of the surface connecting plate, it is convenient to connect the main bodies of the busbar. The operation of the cooling fan causes airflow to pass through the heat-conducting baffle and carry away the heat at the connection point for heat dissipation. Moreover, the airflow channel is not connected to the inside of the protective shell to ensure a seal and reduce the occurrence of leakage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the protective outer shell structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the sealed explosion structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the sealing structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the sealing side seat structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the sealing gasket structure of this utility model;

[0029] Figure 8 This is a schematic diagram of the heat dissipation structure of this utility model;

[0030] Figure 9This is a schematic diagram of the thermally conductive partition structure of this utility model;

[0031] In the diagram: 1. Busbar trunking shell; 10. Busbar body; 11. Mounting plate; 12. Fixed side plate; 13. Heat sink; 14. Inner partition; 15. Sealing corrugations; 16. Sealing strip; 2. Protective shell; 21. Protective cover plate; 22. Protective side plate; 3. Sealing mechanism; 31. Fixed seat; 32. Sealing top seat; 33. Sealing side seat; 34. Connecting protrusion; 35. Connecting groove; 36. Sealing gasket; 361. Sliding... 362. Column; 363. Sliding cavity; 364. Support spring; 37. Mounting bracket; 38. Engaging groove; 4. Heat dissipation mechanism; 41. Heat dissipation cavity; 42. Cooling fan; 43. Filter screen; 44. Vent; 5. Fixing mechanism; 51. Fixing knob; 52. Fixing screw head; 53. Fixing rod; 54. Thermally conductive baffle; 55. Pressing plate; 56. Fixing nut; 57. Thermally conductive capillary protrusion; 58. Mounting hole; 59. Guide rail. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1: Please refer to Figures 1 to 9This utility model provides a technical solution: an end structure of a waterproof busbar trunking, including a busbar trunking shell 1 and a busbar body 10 installed inside the busbar trunking shell 1. A protective shell 2 is connected to the end of the busbar trunking shell 1 via a sealing mechanism 3. The sealing mechanism 3 is tightly pressed against the outside of the busbar body 10. A heat dissipation mechanism 4 is provided on one side of the protective shell 2, and a fixing mechanism 5 is provided in the middle of the protective shell 2. The fixing mechanism 5 includes a fixing rod 53 installed inside the protective shell 2, and a fixing screw head 52 is provided at one end of the fixing rod 53. One end of the screw head 52 passes through the protective housing 2 and is fixedly installed with a fixing knob 51. A fixing nut 56 is screwed onto the outside of the fixing screw head 52. A clamping plate 55 is fixedly installed on one side of the fixing nut 56. The outside of the fixing rod 53 is slidably installed on the inside of the heat-conducting partition 54 through the mounting hole 58. When the busbar body 10 is installed inside the protective cover plate 21 and the protective side plate 22, it is inserted between the heat-conducting partition 54. By rotating the fixing knob 51, the fixing screw head 52 and the fixing rod 53 are rotated, and the fixing screw head 52 drives the fixing nut 56 and the clamping plate 55 to press against the busbar body. 10; The sealing mechanism 3 includes a fixed seat 31 installed on the busbar trunking housing 1. A sealing top seat 32 is integrally formed on one side of the fixed seat 31. A sealing side seat 33 is installed on the sealing top seat 32 and the fixed seat 31. A sealing gasket 36 is provided on one side of the sealing side seat 33 and the sealing top seat 32. The sealing gasket 36 is pressed tightly against the busbar body 10. The fixed seat 31 is fixed to one end of the busbar trunking housing 1 with screws. Then, the sealing side seat 33 is installed on the fixed seat 31 and the sealing top seat 32, and is pressed tightly against the outside of the busbar body 10. The sealing gasket 36 enhances the sealing capability; the sealing side seat 33 is L-shaped, with connecting grooves 35 at both ends, and a connecting protrusion 34 on one side of the sealing top seat 32. The connecting protrusion 34 and the connecting groove 35 engage with each other to ensure more stable installation of the sealing side seat 33; a mounting bracket 37 is fixedly installed on one side of the sealing top seat 32 by screws. The mounting bracket 37 has a locking groove 38 on its inner side, which engages with the outer side of the busbar body 10, facilitating the installation and fixing of the busbar body 10 during use.

[0034] As can be seen from the above description, the present invention has the following beneficial effects: during use, the sealing side seat 33 and the sealing top seat 32 are connected to one end of the busbar trunking shell 1, and the sealing side seat 33 and the sealing top seat 32 seal the end of the busbar trunking shell 1 and the outside of the busbar body 10, and the sealing effect is better ensured by the tight pressure of the sealing gasket 36.

[0035] Further reading is available. Figures 1 to 9The heat dissipation mechanism 4 includes a heat dissipation cavity 41 inside the protective housing 2 and a filter screen 43 installed inside the heat dissipation cavity 41. A cooling fan 42 is installed inside the heat dissipation cavity 41, and a vent 44 is provided on the outside of the protective housing 2. The filter screen 43 is located between the cooling fan 42 and the vent 44. One side of the heat dissipation cavity 41 is connected to the inside of the heat-conducting baffle 54 through a connecting pipe. A heat dissipation channel is provided on the inside of the heat-conducting baffle 54, and heat-conducting capillary protrusions 57 are provided on the inner wall of the heat dissipation channel. A connecting plate is provided on the surface of the heat-conducting baffle 54, and the busbar bodies 10 are electrically connected through the connecting plate. A guide rail 59 is fixedly installed on the inside of the protective housing 2 by screws. The heat-conducting baffle 54 is slidably installed on the guide rail 59. The two ends of the heat-conducting baffle 54 are connected to the heat dissipation cavities 41 on both sides through the connecting pipe. When dissipating heat, the airflow generated by the operation of the cooling fan 42 enters the heat dissipation cavity 41. The heat is drawn into the interior of the heat-conducting baffle 54, thereby carrying away the heat from the connection of the busbar body 10 for heat dissipation; a sliding column 361 is installed on the inner side of the sealing gasket 36, and sliding cavities 362 are opened on the inner sides of the sealing top seat 32 and the sealing side seat 33. A support spring 363 is installed on the inner side of the sliding cavity 362. One end of the sliding column 361 is slidably installed in the sliding cavity 362 and presses on the support spring 363. When the sealing gasket 36 is pressed on the busbar body 10, the sliding column 361 slides in the sliding cavity 362 and compresses the support spring 363. The elastic force of the support spring 363 makes the sealing gasket 36 fit against the surface of the busbar body 10 for sealing. The sealing gasket 36 is made of aging-resistant silicone rubber material with a thickness of 3-5mm; the cooling fan 42 is an axial flow fan with a rated power of 12V / 0.5A, which forms forced convection heat dissipation through the vent 44 on the outside of the protective shell 2.

[0036] Example 2: Please refer to Figures 1 to 9 As shown, based on Embodiment 1, this utility model provides a technical solution: the protective shell 2 includes a protective side plate 22 and a protective cover plate 21 fixedly installed on the protective side plate 22 by bolts. The two ends of the protective side plate 22 are fixedly installed on the sealing top seat 32 and the sealing side seat 33 by screws. The protective side plate 22 is fixedly installed on the two ends of the sealing top seat 32 and the sealing side seat 33. Then the protective cover plate 21 is installed on the sealing top seat 32, and the protective cover plate 21 is engaged with both sides of the protective side plate 22. The end of the protective cover plate 21 is engaged with the sealing top seat 32, and the edge of the protective cover plate 21 is engaged with the outside of the protective side plate 22. Sealing strips and other reinforcements are installed on the inner sides of the protective cover plate 21 and the protective side plate 22.

[0037] Further reading is available. Figures 1 to 6The busbar trunking housing 1 includes a mounting plate 11 and a fixed side plate 12 that is bolted to the mounting plate 11. The surface of the fixed side plate 12 is provided with heat sinks 13, and the inner side of the fixed side plate 12 is provided with an inner partition 14. The inner partition 14 is engaged with the busbar body 10. The mounting plate 11 and the fixed side plate 12 are engaged by sealing corrugations 15 and reinforced by sealing strips 16. Sealing corrugations 15 are provided at both ends of the fixed side plate 12 and on the inner side of the mounting plate 11. The mounting plate 11 and the fixed side plate 12 are engaged with each other by sealing corrugations 15, and a sealing strip 16 is provided between the fixed side plate 12 and the mounting plate 11. The sealing capability is enhanced by sealing corrugations 15 and sealing strips 16.

[0038] By adopting the above technical solution, the protective cover plate 21 and the protective side plate 22 are fixedly installed on the outside of the sealing top seat 32 during use, thereby wrapping and sealing the busbar body 10 and the busbar trunking connector, so as to improve the sealing effect of the busbar trunking.

[0039] The working principle and usage process of this utility model are as follows: During use, the mounting plate 11 and the fixed side plate 12 are locked together by the sealing corrugations 15 and reinforced by the sealing strips 16. When connecting the busbar trunking shell 1, the fixing seat 31 is first fixed to one end of the busbar trunking shell 1 with screws. Then, the sealing side seat 33 is installed on the fixing seat 31 and the sealing top seat 32 by the locking of the connecting protrusions 34 and the connecting grooves 35, and is pressed tightly against the outside of the busbar body 10. The sealing ability is reinforced by the sealing gasket 36. Then, the protective side plate 22 is fixedly installed on both ends of the sealing top seat 32 and the sealing side seat 33. Finally, the protective cover plate 21 is installed on the sealing top seat 32, and the protective cover plate 21 is locked on both sides of the protective side plate 22. When the busbar body 10 is installed inside the protective cover plate 21 and the protective side plate 22, it is inserted between the heat-conducting partition plate 54. The fixing screw head 52 and the fixing rod 53 are rotated by the fixing knob 51. The fixing screw head 52 drives the fixing nut 56 and the clamping plate 55 to press on the busbar body 10, so that the busbar body 10 and the connecting plate of the heat-conducting partition plate 54 are connected to each other. The two ends of the heat-conducting partition plate 54 are connected to the heat dissipation cavity 41 on both sides through the connecting pipe. When dissipating heat, the airflow generated by the operation of the cooling fan 42 enters the interior of the heat-conducting partition plate 54, thereby carrying away the heat at the connection of the busbar body 10 for heat dissipation. The airflow enters and exits from the vents 44 on both sides of the protective shell 2 and will not enter the interior of the protective shell 2 to ensure the sealing and waterproof capability.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. An end structure of a waterproof busbar trunking, comprising a busbar trunking housing (1) and a busbar body (10) installed within the busbar trunking housing (1), characterized in that: The end of the busbar trunking housing (1) is connected to a protective housing (2) through a sealing mechanism (3). The sealing mechanism (3) is pressed tightly against the outside of the busbar body (10). A heat dissipation mechanism (4) is provided on one side of the protective housing (2). A fixing mechanism (5) is provided in the middle of the protective housing (2). The sealing mechanism (3) includes a fixed seat (31) installed on the busbar housing (1). A sealing top seat (32) is integrally formed on one side of the fixed seat (31). A sealing side seat (33) is installed on the sealing top seat (32) and the fixed seat (31). A sealing gasket (36) is provided on one side of the sealing side seat (33) and the sealing top seat (32). The sealing gasket (36) is pressed tightly on the busbar body (10). The fixing mechanism (5) includes a fixing rod (53) installed inside the protective shell (2). One end of the fixing rod (53) is provided with a fixing screw head (52). One end of the fixing screw head (52) passes through the protective shell (2) and is fixedly installed with a fixing knob (51). A fixing nut (56) is screwed on the outside of the fixing screw head (52). A pressure plate (55) is fixedly installed on one side of the fixing nut (56). The outside of the fixing rod (53) is slidably installed on the inside of the heat-conducting partition (54) through the mounting hole (58).

2. The end structure of a waterproof busbar trough according to claim 1, characterized in that: The sealing side seat (33) is L-shaped, and the two ends of the sealing side seat (33) are provided with connecting grooves (35). The sealing top seat (32) is provided with a connecting protrusion (34) on one side, and the connecting protrusion (34) and the connecting groove (35) engage with each other.

3. The end structure of a waterproof busbar trough according to claim 1, characterized in that: The sealing top seat (32) is fixedly mounted with a mounting bracket (37) on one side by screws. The mounting bracket (37) has a locking groove (38) on its inner side, which engages with the outer side of the bus body (10).

4. The end structure of a waterproof busbar trough according to claim 1, characterized in that: The protective housing (2) includes a protective side plate (22) and a protective cover plate (21) fixedly mounted on the protective side plate (22) by bolts. The two ends of the protective side plate (22) are fixedly mounted on the sealing top seat (32) and the sealing side seat (33) by screws.

5. The end structure of a waterproof busbar trough according to claim 4, characterized in that: The end of the protective cover (21) is engaged with the sealing top seat (32), and the edge of the protective cover (21) is engaged with the outside of the protective side plate (22).

6. The end structure of a waterproof busbar trough according to claim 1, characterized in that: The busbar casing (1) includes a mounting plate (11) and a fixed side plate (12) fixedly mounted on the mounting plate (11) by bolts. The surface of the fixed side plate (12) is provided with heat sinks (13), and the inner side of the fixed side plate (12) is provided with an inner partition (14). The inner partition (14) is engaged with the busbar body (10).

7. The end structure of a waterproof busbar trough according to claim 6, characterized in that: Sealing corrugations (15) are provided at both ends of the fixed side plate (12) and on the inner side of the mounting plate (11), and the mounting plate (11) and the fixed side plate (12) are interlocked by the sealing corrugations (15), and a sealing strip (16) is provided between the fixed side plate (12) and the mounting plate (11).

8. The end structure of a waterproof busbar trough according to claim 1, characterized in that: The heat dissipation mechanism (4) includes a heat dissipation cavity (41) opened in the protective shell (2) and a filter screen (43) installed in the heat dissipation cavity (41). A cooling fan (42) is installed on the inner side of the heat dissipation cavity (41), and a vent (44) is provided on the outer side of the protective shell (2). The filter screen (43) is located between the cooling fan (42) and the vent (44). One side of the heat dissipation cavity (41) is connected to the interior of the heat-conducting partition (54) through a connecting pipe.

9. The end structure of a waterproof busbar trough according to claim 1, characterized in that: The inner side of the heat-conducting baffle (54) is provided with a heat dissipation channel, and the inner wall of the heat dissipation channel is provided with heat-conducting capillary protrusions (57). The surface of the heat-conducting baffle (54) is provided with a connecting plate. The busbar bodies (10) are electrically connected to each other through the connecting plate. The inner side of the protective shell (2) is fixedly installed with a guide rail (59) by screws. The heat-conducting baffle (54) is slidably installed on the guide rail (59).

10. The end structure of a waterproof busbar trough according to claim 1, characterized in that: A sliding column (361) is installed on the inner side of the sealing gasket (36). A sliding cavity (362) is opened on the inner side of both the sealing top seat (32) and the sealing side seat (33). A support spring (363) is installed on the inner side of the sliding cavity (362). One end of the sliding column (361) is slidably installed in the sliding cavity (362) and pressed on the support spring (363).