A connecting mechanism of a loose-proof bus duct

Abstract

This invention relates to the field of busbar trunking technology, specifically disclosing a connection mechanism for an anti-loosening busbar trunking, comprising: a first locking plate and a second locking plate, respectively located on both sides of the busbar trunking for contacting mounting plates on both sides of the busbar trunking; multiple connecting plates located between the first and second locking plates for clamping multiple busbar conductive plates of the busbar trunking; a locking limiting post, one end of which is connected to the first locking plate and the other end of which passes through the second locking plate; and a locking assembly connected to the other end of the locking limiting post passing through the second locking plate, wherein the locking assembly is engaged with the second locking plate for limiting contact. By forming a preload between the locking assembly and the locking limiting post, the multiple connecting plates are pressed tightly against the multiple busbar conductive plates. The limiting contact between the locking assembly and the second locking plate limits the axial movement of the locking assembly, resists vibration, and thus prevents the preload from decreasing, ensuring connection stability.

Description

Technical Field

[0001] This invention relates to the field of busbar trunking technology, and more specifically, to a connection mechanism for preventing loosening of busbar trunking. Background Technology

[0002] Busbar trunking, as a highly efficient and compact power transmission device, is widely used in low-voltage power distribution systems such as industrial plants, commercial complexes, and data centers. Compared with traditional cable wiring, busbar trunking has advantages such as large current carrying capacity, low voltage drop, compact structure, flexible installation, and long service life. In practical engineering applications, busbar trunking is usually shipped in the form of unit sections, and the conductors of adjacent unit sections are electrically connected and mechanically fixed on site through connection structures.

[0003] Currently, the connection structure of busbar trunking mostly adopts the method of connecting plates and bolts for locking. This solution has a simple structure and can meet the basic usage requirements under normal working conditions. However, in a vibration environment, traditional bolt connections rely on the self-locking friction of the threaded pair to maintain the clamping state. Under vibration, the threaded pair is prone to slippage, resulting in a reduction in preload. This leads to a decrease in the contact clamping force between the connecting plate and the conductor of the busbar trunking, which in turn increases the contact resistance between the connecting plate and the conductor, causing safety hazards such as local overheating or even arc discharge.

[0004] Therefore, it is necessary to propose a connection mechanism for preventing loosening of busbar trunking in order to at least partially solve the problems existing in the prior art. Summary of the Invention

[0005] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, the present invention provides a connection mechanism for preventing loosening of busbar trunking, comprising: The first locking plate and the second locking plate are located on both sides of the busbar trunking, respectively, and are used to contact the mounting plates on both sides of the busbar trunking. Multiple connecting plates, located between the first locking plate and the second locking plate, are used to clamp multiple busbar conductive plates of the busbar groove; A locking limit post is provided, with one end connected to the first locking plate and the other end passing through the second locking plate. A locking assembly is connected to the other end of the locking limiting post that passes through the second locking plate, and the locking assembly is engaged with the second locking plate for limiting.

[0007] Preferably, the locking limit post includes: The first limiting cylinder has one end connected to the first locking plate; The second limiting cylinder is slidably sleeved inside the first limiting cylinder; A stud is fitted inside the second limiting sleeve. One end of the stud is connected to the first locking plate, and the other end passes through the second locking plate. A spring is sleeved on the outside of the stud, and the spring is connected between the first limiting cylinder and the second limiting cylinder.

[0008] Preferably, the outer contours of the cross-sections of the first limiting cylinder and the second limiting cylinder are both polygonal.

[0009] Preferably, the connecting plate is provided with a limiting through hole corresponding to the locking limiting post.

[0010] Preferably, the second locking plate is provided with a first limiting hole corresponding to the second limiting cylinder and a second limiting hole corresponding to the stud, and the first limiting hole is provided on the side close to the first locking plate; A first stepped surface is formed between the first limiting hole and the second limiting hole, and the first stepped surface abuts against the end of the second limiting cylinder.

[0011] Preferably, the locking assembly includes: The nut body is threadedly connected to the stud. A retaining plate is provided on the side of the nut body near the second locking plate. The retaining plate has a central mounting hole, and a second stepped surface is formed between the central mounting hole and the nut body. The retaining plate also has an annular mounting groove, which is located outside the central mounting hole. An abutting ring plate is provided on the snap-fit ​​plate. One side of the abutting ring plate is provided with an annular limiting plate corresponding to the annular mounting groove. At least two arc-shaped spring pieces are provided on the inner side of the abutting ring plate. One end of the arc-shaped spring piece is connected to the abutting ring plate, and the other end abuts against the second step surface.

[0012] Preferably, the arc-shaped spring sheet creates a gap between the abutting ring plate and the retaining plate when it is not under force. When the abutment ring plate is subjected to axial force that reduces the gap distance, the arc-shaped spring sheet forms an elastic abutment force on the side of the stud.

[0013] Preferably, the second locking plate is provided with a locking member corresponding to the locking plate, which can prevent the locking plate from moving away from the second locking plate.

[0014] Preferably, the snap-fit ​​component includes: At least two elastic rods, one end of which is connected to the second locking plate, and the other end is a movable end, which generates an inward elastic force; A snap-fit ​​protrusion is located on the inner side of the movable end of the elastic rod, and the side of the snap-fit ​​protrusion facing the second locking plate is arc-shaped.

[0015] Preferably, it further includes: at least two abutment plates and an arc-shaped elastic plate, the abutment plates being connected to the second locking plate via the arc-shaped elastic plate, one end of the abutment plate contacting the abutment ring plate, and the other end of the abutment plate contacting the side of the stud.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: The anti-loosening busbar trunking connection mechanism of the present invention forms a pre-tightening force between the locking assembly and the locking limiting post, causing multiple connecting plates and multiple busbar conductive plates to press into contact. The axial movement of the locking assembly is limited by the limiting engagement between the locking assembly and the second locking plate, which can resist vibration and thus prevent the pre-tightening force from decreasing, ensuring connection stability. The continuous and stable pressing force ensures low-impedance contact between the connecting plates and the busbar conductive plates, avoids local overheating, reduces the failure rate caused by poor contact, and extends service life.

[0017] By providing continuous axial compensation force through springs, and combining the radial clamping force formed by the arc-shaped spring sheet under compression, a dual anti-loosening mechanism of axial and radial is formed, which significantly improves vibration resistance. The snap-fit ​​connector and the snap-fit ​​disc form a one-way locking structure, which can prevent the nut body from retracting due to vibration; Driven by the arc-shaped elastic plate, the abutment plate forms multiple points of contact with the side of the stud, increasing friction and further enhancing its resistance to loosening.

[0018] The connection mechanism for the anti-loosening busbar trunking described in this invention, and other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the connection mechanism for the anti-loosening busbar trunking described in this invention. Figure 2 This is an enlarged structural schematic diagram of the connection mechanism for the anti-loosening busbar trunking described in this invention; Figure 3 This is a cross-sectional schematic diagram of the locking and limiting column in the connection mechanism of the anti-loosening busbar trunking described in this invention; Figure 4 This is an exploded structural diagram of the connection mechanism for the anti-loosening busbar trunking described in this invention; Figure 5 This is a schematic diagram of the structure of the second locking plate in the anti-loosening busbar trunking connection mechanism of the present invention; Figure 6 This is a schematic diagram of the locking component in the anti-loosening busbar trunking connection mechanism of the present invention; Figure 7 This is a top view of the connection mechanism for the anti-loosening busbar trunking described in this invention. Figure 8 This is a schematic diagram of the connection structure between the second locking plate, stud, and locking assembly in the anti-loosening busbar trunking connection mechanism of the present invention. Figure 9 This is a cross-sectional structural schematic diagram of the connection mechanism for the anti-loosening busbar trunking described in this invention.

[0020] In the attached drawings, 1 is the first locking plate, 2 is the second locking plate, 21 is the first limiting hole, 22 is the second limiting hole, 23 is the first stepped surface, 3 is the mounting plate, 4 is the connecting plate, 41 is the limiting through hole, 5 is the busbar conductive plate, 6 is the locking limiting post, 61 is the first limiting cylinder, 62 is the second limiting cylinder, 63 is the stud, 64 is the spring, 7 is the locking assembly, 71 is the nut body, 72 is the snap-fit ​​plate, 721 is the center mounting hole, 722 is the annular mounting groove, 73 is the second stepped surface, 74 is the abutment ring plate, 75 is the annular limiting plate, 76 is the arc-shaped spring piece, 8 is the snap-fit ​​piece, 81 is the elastic rod, 82 is the snap-fit ​​protrusion, 9 is the abutment plate, and 10 is the arc-shaped elastic plate. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0022] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0023] like Figures 1-2 As shown, the present invention provides a connection mechanism for preventing loosening of busbar trunking, comprising: The first locking plate 1 and the second locking plate 2 are located on both sides of the busbar trunking, respectively, and are used to contact the mounting plates 3 on both sides of the busbar trunking. Multiple connecting plates 4 are located between the first locking plate 1 and the second locking plate 2, and are used to clamp multiple busbar conductive plates 5 of the busbar groove; The locking limit post 6 has one end connected to the first locking plate 1 and the other end passing through the second locking plate 2; The locking assembly 7 is connected to the other end of the locking limiting post 6 that passes through the second locking plate 2, and the locking assembly 7 is engaged with the second locking plate 2 for limiting.

[0024] When the busbar trunking is connected, connecting plates 4 are arranged between multiple busbar conductive plates 5 and between the busbar conductive plates 5 and the mounting plate 3. The locking limit post 6 is fixedly connected to the first locking plate 1. After the locking limit post 6 passes through multiple connecting plates 4 in sequence, the second locking plate 2 is put on the locking limit post 6 and then locked by the locking assembly 7, so that a pre-tightening force is formed between the second locking plate 2 and the first locking plate 1. The second locking plate 2 can be engaged with the locking assembly 7 to prevent the locking assembly 7 from loosening under vibration.

[0025] Through the above design, a pre-tightening force is formed between the locking assembly 7 and the locking limiting post 6, so that multiple connecting plates 4 and multiple busbar conductive plates 5 are pressed into contact. Through the limiting engagement between the locking assembly 7 and the second locking plate 2, the axial movement of the locking assembly 7 can be limited, which can resist the vibration and thus avoid the reduction of the pre-tightening force and ensure the connection stability.

[0026] like Figure 3 As shown, in one embodiment, the locking limit post 6 includes: The first limiting cylinder 61 has one end connected to the first locking plate 1; The second limiting cylinder 62 is slidably sleeved inside the first limiting cylinder 61; A stud 63 is fitted inside the second limiting sleeve 62. One end of the stud 63 is connected to the first locking plate 1, and the other end passes through the second locking plate 2. A spring 64 is sleeved on the outside of the stud 63, and the spring 64 is connected between the first limiting cylinder 61 and the second limiting cylinder 62.

[0027] like Figure 4 As shown, further, the outer contours of the cross-sections of the first limiting cylinder 61 and the second limiting cylinder 62 are both polygons.

[0028] like Figure 4 As shown, the connecting plate 4 is further provided with a limiting through hole 41 corresponding to the locking limiting post 6.

[0029] like Figure 5 As shown, the second locking plate 2 is further provided with a first limiting hole 21 corresponding to the second limiting cylinder 62 and a second limiting hole 22 corresponding to the stud 63. The first limiting hole 21 is provided on the side close to the first locking plate 1. A first stepped surface 23 is formed between the first limiting hole 21 and the second limiting hole 22, and the first stepped surface 23 abuts against the end of the second limiting cylinder 62.

[0030] In the above technical solution, the first limiting cylinder 61 and the stud 63 are both fixedly connected to the first locking plate 1. The limiting through hole 41 on the connecting plate 4 corresponds to the first limiting cylinder 61, so as to limit the installation position of the connecting plate 4 and prevent the connecting plate 4 from rotating along the locking limiting post 6. During installation, the second limiting cylinder 62 passes through multiple connecting plates 4 and is inserted into the first limiting hole 21 of the second locking plate 2. The end of the second limiting cylinder 62 abuts against the first stepped surface 23. When the locking assembly 7 is locked with the stud 63, a locking force is formed on the second locking plate 2, thereby causing the second locking plate 2 to exert a force on the second limiting cylinder 62, which compresses the spring 64. The elastic restoring force of the spring 64 forms a reverse force on the locking assembly 7, improving the pre-tightening effect. An elastic axial compensation effect is formed between the first limiting cylinder 61, the second limiting cylinder 62, and the spring 64, which can form a continuous elastic restoring force on the second locking plate 2, automatically compensating for the displacement caused by vibration and preventing the pre-tightening force from decaying.

[0031] In addition, the limiting insertion of the first limiting hole 21 and the second limiting cylinder 62 can prevent the locking limiting post 6 and the second locking plate 2 from rotating relative to each other, further improving the connection stability.

[0032] like Figure 6 As shown, in one embodiment, the locking assembly 7 includes: The nut body 71 is threadedly connected to the stud 63; A retaining plate 72 is provided on the side of the nut body 71 near the second locking plate 2. The retaining plate 72 has a central mounting hole 721. The central mounting hole 721 and the nut body 71 form a second stepped surface 73. The retaining plate 72 also has an annular mounting groove 722, which is located outside the central mounting hole 721. An abutting ring plate 74 is disposed on the retaining plate 72. One side of the abutting ring plate 74 is provided with an annular limiting plate 75 corresponding to the annular mounting groove 722. At least two arc-shaped spring pieces 76 are provided on the inner side of the abutting ring plate 74. One end of the arc-shaped spring piece 76 is connected to the abutting ring plate 74, and the other end abuts against the second step surface 73.

[0033] Among them, the arc-shaped elastic piece 76 is an arc-shaped elastic piece that protrudes towards the stud 63.

[0034] like Figure 9 As shown, further, when the arc-shaped spring piece 76 is not under force, it creates a gap between the abutting ring plate 74 and the locking plate 72; When the abutment ring plate 74 is subjected to axial force that reduces the gap distance, the arc-shaped spring piece 76 forms an elastic abutment force on the side of the stud 63.

[0035] Both the abutting ring plate 74 and the annular limiting plate 75 are rigid plates. When the abutting ring plate 74 is not under force, the arc-shaped spring piece 76 is also not under force. At this time, the arc-shaped spring piece 76 is in contact with the second step surface 73, and the annular limiting plate 75 is also at a distance from the bottom surface of the annular mounting groove 722. When the abutting ring plate 74 is subjected to axial force, the abutting ring plate 74 and the annular limiting plate 75 move synchronously, and at the same time, they squeeze the arc-shaped spring piece 76. When the locking assembly 7 is connected to the stud 63, the nut body 71 is screwed on, and the abutment ring plate 74 moves synchronously with the nut body 71. When the abutment ring plate 74 contacts a part of the second locking plate 2, as the locking force increases, the second locking plate 2 exerts a force on the abutment ring plate 74, which reduces the gap between the abutment ring plate 74 and the locking disc 72, thereby squeezing the arc-shaped spring piece 76. The part of the arc-shaped spring piece 76 that bends inward will move closer to the stud 63 and fit against the stud 63, thereby increasing the friction between the stud 63 and the nut body 71 to resist the loosening between the nut body 71 and the stud 63 caused by vibration.

[0036] Through the above design, the self-locking mechanism of the arc-shaped spring 76 is utilized. After the abutment ring plate 74 is subjected to pressure, the arc-shaped spring 76 can be driven to bend and deform, thereby moving it closer to the stud 63 and forming a radial elastic clamping force with the side of the stud 63. The elastic clamping force increases with the increase of the locking force, increasing the frictional resistance of the threaded pair and further resisting axial loosening.

[0037] like Figure 7 As shown, in one embodiment, the second locking plate 2 is provided with a snap-fit ​​member 8 corresponding to the snap-fit ​​plate 72, which can prevent the snap-fit ​​plate 72 from moving away from the second locking plate 2.

[0038] After the locking assembly 7 is connected to the stud 63, the locking member 8 can be locked in place with the locking plate 72, thereby preventing the locking assembly 7 from moving away from the second locking plate 2 and resisting loosening caused by vibration.

[0039] like Figure 8 As shown, in one embodiment, the snap-fit ​​connector 8 includes: At least two elastic rods 81, one end of which is connected to the second locking plate 2, and the other end is a movable end, which generates an inward elastic force; The snap-fit ​​protrusion 82 is located inside the movable end of the elastic rod 81, and the side of the snap-fit ​​protrusion 82 facing the second locking plate 2 is arc-shaped.

[0040] After the locking assembly 7 comes into close contact with the second locking plate 2, the locking plate 72 engages with the locking protrusion 82, and the elastic force of the elastic rod 81 limits the locking plate 72. The elastic rod 81 is arc-shaped. When installing the locking assembly 7, external force can be used to move the elastic rod 81 outward, connecting the locking assembly 7 to the stud 63. After the locking plate 72 moves and passes the locking protrusion 82, the external force is removed, and the locking protrusion 82 elastically engages with the side of the locking plate 72, i.e. Figure 8 As shown, under vibration, the elastic rod 81 can resist the vibration, thereby preventing the locking assembly 7 from becoming loose.

[0041] Through the above design, the snap-fit ​​protrusion 82 can form an elastic snap-fit ​​with the side of the snap-fit ​​plate 72, preventing the snap-fit ​​plate 72 from moving in the opposite direction. The above structure is simple and can lock the snap-fit ​​plate 72 without additional operation. It is not affected by the direction of vibration and can resist vibration well. It is also easy to disassemble. When disassembling the locking component 7, it can be directly unscrewed.

[0042] like Figure 8 and Figure 9 As shown, in one embodiment, it further includes: at least two abutment plates 9 and an arc-shaped elastic plate 10, the abutment plates 9 being connected to the second locking plate 2 via the arc-shaped elastic plate 10, one end of the abutment plate 9 contacting the abutment ring plate 74, and the other end of the abutment plate 9 contacting the side of the stud 63.

[0043] The arc-shaped elastic plate 10 is configured as an inwardly protruding arc or an outwardly protruding arc. In this embodiment, an outwardly protruding arc is used. The purpose is that after the abutment plate 9 is subjected to force, the arc-shaped elastic plate 10 deforms under force, so that the abutment plate 9 can make closer contact with the side of the stud 63 and increase the frictional force of the connection with the stud 63.

[0044] The abutment plate 9 and the arc-shaped elastic plate 10 can be selectively provided. When the abutment plate 9 and the arc-shaped elastic plate 10 are not provided, the abutment ring plate 74 abuts against the surface of the second locking plate 2. When the abutment plate 9 and the arc-shaped elastic plate 10 are provided, the abutment ring plate 74 abuts against the abutment plate 9. As the locking force of the locking assembly 7 increases, the pressing force between the abutment ring plate 74 and the abutment plate 9 increases accordingly, thereby causing the arc-shaped elastic plate 10 to deform under force, which increases the contact force between the abutment plate 9 and the stud 63.

[0045] In addition, the ends of the multiple abutment plates 9 that contact the stud 63 can form a spiral shape and correspond to the external thread of the stud 63, so that the abutment plates 9 can make close contact with the external thread of the stud 63 and form a better contact force.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the present invention, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A connection mechanism for preventing loosening of busbar trunking, characterized in that, include: The first locking plate (1) and the second locking plate (2) are located on both sides of the busbar trunking, respectively, and are used to contact the mounting plates (3) on both sides of the busbar trunking. Multiple connecting plates (4) are located between the first locking plate (1) and the second locking plate (2) for clamping multiple busbar conductive plates (5) of the busbar groove. The locking limit post (6) has one end connected to the first locking plate (1) and the other end passing through the second locking plate (2); The locking assembly (7) is connected to the other end of the locking limit post (6) passing through the second locking plate (2), and the locking assembly (7) is engaged with the second locking plate (2) for limiting.

2. The connection mechanism for the anti-loosening busbar trunking according to claim 1, characterized in that, The locking limit post (6) includes: The first limiting cylinder (61) has one end connected to the first locking plate (1); The second limiting cylinder (62) is slidably sleeved inside the first limiting cylinder (61); A stud (63) is fitted inside the second limiting sleeve (62). One end of the stud (63) is connected to the first locking plate (1), and the other end passes through the second locking plate (2). A spring (64) is sleeved on the outside of a stud (63), and the spring (64) is connected between a first limiting cylinder (61) and a second limiting cylinder (62).

3. The connection mechanism for the anti-loosening busbar trunking according to claim 2, characterized in that, The outer contours of the cross-sections of the first limiting cylinder (61) and the second limiting cylinder (62) are both polygonal.

4. The connection mechanism for the anti-loosening busbar trunking according to claim 1, characterized in that, The connecting plate (4) is provided with a limiting through hole (41) corresponding to the locking limiting post (6).

5. The connection mechanism for the anti-loosening busbar trunking according to claim 2, characterized in that, The second locking plate (2) is provided with a first limiting hole (21) corresponding to the second limiting cylinder (62) and a second limiting hole (22) corresponding to the stud (63). The first limiting hole (21) is provided on the side close to the first locking plate (1). A first step surface (23) is formed between the first limiting hole (21) and the second limiting hole (22), and the first step surface (23) abuts against the end of the second limiting cylinder (62).

6. The connection mechanism for the anti-loosening busbar trunking according to claim 2, characterized in that, The locking assembly (7) includes: The nut body (71) is threadedly connected to the stud (63); A retaining plate (72) is provided on the side of the nut body (71) near the second locking plate (2). The retaining plate (72) has a central mounting hole (721). A second stepped surface (73) is formed between the central mounting hole (721) and the nut body (71). The retaining plate (72) also has an annular mounting groove (722). The annular mounting groove (722) is located outside the central mounting hole (721). An abutting ring plate (74) is provided on the snap-fit ​​plate (72). One side of the abutting ring plate (74) is provided with an annular limiting plate (75) corresponding to the annular mounting groove (722). The inner side of the abutting ring plate (74) is provided with at least two arc-shaped spring pieces (76). One end of the arc-shaped spring piece (76) is connected to the abutting ring plate (74), and the other end abuts against the second step surface (73).

7. The connection mechanism for the anti-loosening busbar trunking according to claim 6, characterized in that, When the arc-shaped spring piece (76) is not under force, it creates a gap between the abutting ring plate (74) and the locking plate (72); When the abutment ring plate (74) is subjected to axial force that reduces the gap distance, the arc-shaped spring piece (76) forms an elastic abutment force on the side of the stud (63).

8. The connection mechanism for the anti-loosening busbar trunking according to claim 6, characterized in that, The second locking plate (2) is provided with a snap-fit ​​member (8) corresponding to the snap-fit ​​plate (72), which can prevent the snap-fit ​​plate (72) from moving away from the second locking plate (2).

9. The connection mechanism for the anti-loosening busbar trunking according to claim 8, characterized in that, The snap-fit ​​connector (8) includes: At least two elastic rods (81), one end of which is connected to the second locking plate (2), and the other end is a movable end, which forms an inward elastic force; A snap-fit ​​protrusion (82) is provided on the inner side of the movable end of the elastic rod (81), and the side of the snap-fit ​​protrusion (82) facing the second locking plate (2) is arc-shaped.

10. The connection mechanism for the anti-loosening busbar trunking according to claim 6, characterized in that, Also includes: At least two abutment plates (9) and an arc-shaped elastic plate (10) are provided. The abutment plates (9) are connected to the second locking plate (2) via the arc-shaped elastic plate (10). One end of the abutment plate (9) contacts the abutment ring plate (74), and the other end of the abutment plate (9) contacts the side of the stud (63).

Images