Novel bus clamp of switch cabinet

By designing an adjustable busbar clamp, the problem of existing busbar clamps being unable to adapt to copper busbars of different thicknesses is solved, achieving flexible adjustment and stability of the busbar clamp opening, and adapting to the assembly requirements of busbars of different sizes.

CN223502427UActive Publication Date: 2025-10-31ZHENGZHOU HUACHEN ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202422991180.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-10-31
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

The existing busbar clamps have a fixed mounting slot width, which cannot accommodate copper busbars of different thicknesses, leading to assembly difficulties.

Method used

A novel busbar clamp for switchgear is designed. The distance and width between the upper and lower clamps can be adjusted by turning the lifting adjustment screw with a hand-tightening nut. An auxiliary lifting rod is used to provide support, and the length and width of the clamp opening can be adjusted using upper and lower adjustment components.

Benefits of technology

It enables flexible adjustment of the busbar clamp to adapt to busbars of different sizes, improving the convenience and stability of assembly and ensuring safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223502427U_ABST
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Abstract

The utility model provides a novel bus clamp for a switch cabinet, which belongs to the technical field of low-voltage complete electrical equipment and comprises an upper clamping plate and a lower clamping plate which are arranged along the left-right direction, an upper opening is arranged at the top of an upper clamping opening of the upper clamping plate, an upper movable rod is arranged in the upper opening, and a lower opening is arranged at the lower part of an upper clamping opening of the lower clamping plate. A lower movable rod is arranged in the lower opening, upper adjusting assemblies are symmetrically arranged on the front side and the rear side of the upper opening, lower adjusting assemblies are symmetrically arranged on the front side and the rear side of the lower opening, and lifting assemblies are arranged on the left side and the right side of the upper clamping plate and the left side and the right side of the lower clamping plate respectively. The width of the clamping opening of the upper clamping plate is adjusted through the upper adjusting assembly, and the width of the clamping opening of the lower clamping plate is adjusted through the lower adjusting assembly, so that the length adjustment and the width adjustment of the clamping opening of the bus clamp are realized.
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Description

Technical Field

[0001] This utility model relates to the field of low-voltage complete electrical equipment technology, specifically to a new type of busbar clamp for switchgear. Background Technology

[0002] Busbar clamps are commonly used fixtures for fixing busbars and are widely used in complete switchgear. They are used to effectively fix and support busbars and meet insulation requirements. Typically, mounting slots are opened on the mounting plate of the busbar clamp, the copper busbars of the switchgear are installed in the mounting slots, and the copper busbars are clamped in the mounting slots by bolts or other locking components.

[0003] However, since the width of the mounting slot is fixed, only copper busbars with a thickness that matches the width of the mounting slot can be installed in the mounting slot. When the thickness of the copper busbar is greater than the width of the mounting slot, the copper busbar cannot be installed in the mounting slot; when the thickness of the copper busbar is less than the width of the mounting slot, the problem of positioning the copper busbar in the mounting slot is involved, which increases the assembly difficulty. To solve the above problems, a new type of busbar clamp for switchgear is proposed. Utility Model Content

[0004] In view of this, the present invention provides a novel busbar clamp for switchgear. The present invention allows adjustment of the length of the busbar clamp opening by turning the lifting adjustment screw with a hand-tightening nut, thereby adjusting the upper and lower clamping plates and the clamping opening of the busbar clamp. The width of the upper clamping opening is adjusted by the upper adjustment component, and the width of the lower clamping opening is adjusted by the lower adjustment component, thereby realizing the adjustment of the length and width of the busbar clamp opening.

[0005] To solve the above-mentioned technical problems, this utility model provides a novel busbar clamp for switchgear, including an upper clamping plate and a lower clamping plate arranged in the left-right direction. The upper clamping plate has an upper opening at the top of the clamping opening, and an upper movable rod is arranged inside the upper opening. The lower clamping plate has a lower opening at the bottom of the clamping opening, and a lower movable rod is arranged inside the lower opening. An upper adjustment component is symmetrically arranged on the front and rear sides of the upper opening, and a lower adjustment component is symmetrically arranged on the front and rear sides of the lower opening. A lifting component is arranged on the left and right sides of both the upper and lower clamping plates.

[0006] Each lifting assembly includes a lower connecting block connected to the side wall of the lower clamping plate, which is used to connect the lower end of the lifting adjustment screw to the lower clamping plate. It also includes an upper connecting block connected to the side wall of the upper clamping plate, which is used to connect the upper end of the lifting adjustment screw to the upper clamping plate. The upper and lower connecting blocks are coaxially provided with lifting threaded holes, which facilitate the installation of the lifting adjustment screw and allow it to move and adjust between the upper and lower connecting blocks. A lifting adjustment screw is installed within the lifting threaded hole, and the lifting adjustment screw is used to adjust the distance between the upper and lower clamping plates.

[0007] The upper part of the lifting adjustment screw is equipped with a lifting limit ring to prevent the lifting adjustment screw from falling. The upper end of the lifting limit ring is equipped with a hand-tightening nut for easy manual adjustment of the lifting adjustment screw.

[0008] An auxiliary lifting rod is provided between the outermost edges of the upper and lower clamping plates. The auxiliary lifting rod is used for support when the upper and lower clamping plates are separated. The upper end of the auxiliary lifting rod is embedded in the upper clamping plate, and the lower end of the auxiliary lifting rod is embedded in the lower clamping plate.

[0009] The structure of each upper-level control component is identical to that of each lower-level control component.

[0010] Each upper-level adjustment component includes a first connecting block fixed to one side of the upper clamping plate, which is used for the movement of one end of the horizontal adjustment screw. A second connecting block is fixed to the other side of the upper clamping plate, which is used for the movement of the other end of the horizontal adjustment screw. The first connecting block and the second connecting block are coaxially provided with a horizontal threaded hole, which is used for the longitudinal movement of the horizontal adjustment screw. The horizontal adjustment screw is provided in the horizontal threaded hole and is also used to adjust the width of the clamping plate on the upper clamping plate.

[0011] A horizontal limit ring is provided at one end of the horizontal adjusting screw to prevent the horizontal adjusting screw from falling off. A hand-tightening nut is provided at the front end of the horizontal limit ring to facilitate manual adjustment of the horizontal adjusting screw.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. By turning the lifting adjustment screw with the hand-tightening nut, the distance between the upper and lower connecting blocks is controlled, thereby adjusting the length of the busbar clamp between the upper and lower clamps. At the same time, the auxiliary lifting rod supports the upper and lower clamps. The width of the clamp on the upper clamp is adjusted by the first and second connecting blocks on the upper adjustment component, and the width of the clamp on the lower clamp is adjusted by the first and second connecting blocks on the lower adjustment component, thus realizing the length and width adjustment of the busbar clamp.

[0014] 2. The hand-tightening nut allows for easy manual adjustment of the lifting screw by turning the knob. The lifting limit ring is used to prevent the lifting screw from loosening after it is fixed, ensuring its stability and safety. The horizontal limit ring is used to prevent the horizontal adjustment screw from loosening after it is fixed, ensuring its stability and safety.

[0015] 3. The auxiliary lifting rod is used to support the upper and lower clamping plates when they separate, thus providing reinforcement support during the separation process. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a front view structural diagram of the present utility model;

[0018] Figure 3 This is a bottom sectional view of the present invention;

[0019] Figure 4 This is a front sectional view of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 100, upper clamping plate; 101, upper opening; 102, upper movable rod; 103, upper adjustment assembly; 104, first connecting block; 105, second connecting block; 106, horizontal threaded hole; 107, horizontal adjusting screw; 108, horizontal limit ring; 200, lower clamping plate; 201, lower opening; 202, lower adjustment assembly; 203, lower movable rod; 300, lifting assembly; 301, lifting limit ring; 302, lower connecting block; 303, upper connecting block; 304, lifting adjusting screw; 305, hand-tightening nut; 306, auxiliary lifting rod; 307, lifting threaded hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0022] like Figure 1-4As shown: This embodiment provides a novel busbar clamp for a switchgear, including an upper clamping plate 100 and a lower clamping plate 200 arranged in a left-right direction. The upper clamping plate 100 has an upper opening 101 at the top of its upper clamping opening, which is used to fix an upper movable rod 102. The upper movable rod 102 is disposed within the upper opening 101 and assists in the separation of the upper opening 101 to accommodate busbars of different sizes. The upper movable rod 102 also assists in supporting the opening degree of the upper opening 101. The lower clamping plate 200 has a lower opening 201 at the bottom of its upper clamping opening, which contains a lower movable rod 203. 201 is used to fix the lower movable rod 203. The lower movable rod 203 has the same structure as the upper movable rod 102. An upper adjustment component 103 is symmetrically arranged on the front and rear sides of the upper opening 101. The upper adjustment component 103 is used to adjust the width between the upper clamping openings of the upper clamping plate 100. A lower adjustment component 202 is symmetrically arranged on the front and rear sides of the lower opening 201. The lower adjustment component 202 is used to adjust the width between the upper clamping openings of the lower clamping plate 200. A lifting component 300 is arranged on the left and right sides of the upper clamping plate 100 and the lower clamping plate 200. The lifting component 300 is used to adjust the length between the upper clamping plate 100 and the lower clamping plate 200.

[0023] In use, the lifting adjustment screw 304 is turned by hand-tightening nut 305, thereby controlling the distance between the upper connecting block 303 and the lower connecting block 302, thus adjusting the length of the busbar clamp between the upper clamp 100 and the lower clamp 200. At the same time, the auxiliary lifting rod 306 supports the upper clamp 100 and the lower clamp 200. The width of the clamp on the upper clamp 100 is adjusted by the first connecting block 104 and the second connecting block 105 on the upper adjustment component 103, and the width of the clamp on the lower clamp 200 is adjusted by the first connecting block 104 and the second connecting block 105 on the lower adjustment component 202, thereby realizing the length and width adjustment of the busbar clamp.

[0024] This embodiment provides a novel busbar clamp for switchgear.

[0025] like Figure 1 , 2As shown in Figure 4: Each lifting assembly 300 includes a lower connecting block 302 connected to the side wall of the lower clamping plate 200. The lower connecting block 302 is used to connect the lower end of the lifting adjusting screw 304 to the lower clamping plate 200. The lower connecting block 302 is fixed to the side wall of the lower clamping plate 200 with bolts. An upper connecting block 303 is connected to the side wall of the upper clamping plate 100. The upper connecting block 303 is fixed to the side wall of the upper clamping plate 100 with bolts. The upper connecting block 303 is used to connect the upper end of the lifting adjusting screw 304 to the side wall of the upper clamping plate 100. The upper connecting block 303 and the lower connecting block 302 are coaxially provided with a lifting threaded hole 307. The internal thread of the lifting threaded hole 307 is adapted to the external thread of the lifting adjusting screw. The lifting threaded hole 307 is used to facilitate the installation of the lifting adjusting screw 304, which can be moved and adjusted between the upper connecting block 303 and the lower connecting block 302. The lifting threaded hole 307 is provided with a lifting adjusting screw 304, which is used to adjust the distance between the upper clamping plate 100 and the lower clamping plate 200.

[0026] Its effect is as follows: The lifting adjustment screw 304 is used to adjust the distance between the upper clamping plate 100 and the lower clamping plate 200, thereby controlling the height of the clamping opening between the upper clamping plate 100 and the lower clamping plate 200, thereby adjusting the length of the busbar clamping, and thus adapting to busbars of different sizes and clamping busbars of different sizes.

[0027] like Figure 1 , 2 As shown in Figure 4: A lifting limit ring 301 is provided on the upper part of the lifting adjustment screw 304. The lifting limit ring 301 is adapted to the size of the lifting adjustment screw 304. The lifting limit ring 301 is fixed between the upper connecting block 303 and the lower connecting block 302. The internal thread of the lifting limit ring 301 is adapted to the thread on the lifting adjustment screw 304. The lifting limit ring 301 is used to prevent the lifting adjustment screw 304 from falling. A hand-tightening nut 305 is provided at the upper end of the lifting limit ring 301 for easy manual adjustment of the lifting adjustment screw 304. The hand-tightening nut 305 and the lifting adjustment screw 304 can be integrally cast or welded together.

[0028] Its effects are as follows: the hand-tightening nut 305 facilitates manual adjustment of the knob lifting screw 304, and the lifting limit ring 301 is used to prevent the lifting screw 304 from loosening after it is fixed, ensuring its stability and safety.

[0029] like Figure 1 , 2 As shown in Figure 4: An auxiliary lifting rod 306 is provided between the outermost edges of the upper clamping plate 100 and the lower clamping plate 200. The auxiliary lifting rod 306 is used for support when the upper clamping plate 100 and the lower clamping plate 200 are separated. The auxiliary lifting rod 306 can be a telescopic rod with a sleeve. The upper end of the auxiliary lifting rod 306 is embedded in the upper clamping plate 100, and the lower end of the auxiliary lifting rod 306 is embedded in the lower clamping plate 200.

[0030] Its effect is as follows: the auxiliary lifting rod 306 is used to support the upper clamping plate 100 and the lower clamping plate 200 when they are separated, and thus plays a role in reinforcing the support when the upper clamping plate 100 and the lower clamping plate 200 are separated.

[0031] like Figure 1 , 2 As shown in Figure 3, each upper adjustment component 103 and each lower adjustment component 202 have the same structure. The upper adjustment component 103 is used to adjust the clamping width between the upper clamping plates 100, and the lower adjustment component 202 is used to adjust the clamping width between the lower clamping plates 200.

[0032] like Figure 1 , 2 As shown in Figure 3: Each upper-level adjustment component 103 includes a first connecting block 104 fixed to one side of the clamping opening of the upper clamping plate 100. The first connecting block 104 is used for the movement of one end of the horizontal adjustment screw 107. A second connecting block 105 is fixed to the other side of the clamping opening of the upper clamping plate 100. The second connecting block 105 is used for the movement of the other end of the horizontal adjustment screw 107. The first connecting block 104 and the second connecting block 105 are coaxially provided with a horizontal threaded hole 106. The horizontal threaded hole 106 is used for the longitudinal movement of the horizontal adjustment screw 107. The horizontal adjustment screw 107 is provided in the horizontal threaded hole 106. The horizontal adjustment screw 107 is also used to adjust the width of the clamping opening on the upper clamping plate. The first connecting block 104 on the upper-level adjustment component 103 is fixed to the front of the upper clamping plate 100 with bolts. The second connecting block 105 on the upper-level adjustment component 103 is fixed to the front of the upper clamping plate 100 with bolts.

[0033] like Figure 1 , 2 As shown in Figure 3: Each lower adjustment assembly 202 includes a first connecting block 104 fixed to one side of the clamping opening of the lower clamping plate 200. The first connecting block 104 is used for the movement of one end of the horizontal adjustment screw 107. A second connecting block 105 is fixed to the other side of the clamping opening of the lower clamping plate 200. The second connecting block 105 is used for the movement of the other end of the horizontal adjustment screw 107. The first connecting block 104 and the second connecting block 105 are coaxially provided with a horizontal threaded hole 106. The horizontal threaded hole 106 is used for the longitudinal movement of the horizontal adjustment screw 107. The horizontal adjustment screw 107 is provided in the horizontal threaded hole 106. The horizontal adjustment screw 107 is also used to adjust the width of the clamping opening on the lower clamping plate. The first connecting block 104 on the upper adjustment assembly 103 is fixed to the front of the upper clamping plate 100 with bolts. The second connecting block 105 on the upper adjustment assembly 103 is fixed to the front of the upper clamping plate 100 with bolts.

[0034] Its effect is as follows: the upper adjustment component 103 is used to adjust the clamping width between the upper clamping plates 100, and the lower adjustment component 202 is used to adjust the clamping width between the lower clamping plates 200, thereby making it convenient for the bus clamp to cope with busbars of different sizes when in use.

[0035] like Figure 1 , 2 As shown in Figure 3: A horizontal limiting ring 108 is provided at one end of the horizontal adjusting screw 107. The horizontal limiting ring 108 is installed between the first connecting block 104 and the second connecting block 105. The horizontal limiting ring 108 is used to prevent the horizontal adjusting screw 107 from falling off. The horizontal limiting ring 108 has an internal thread that is compatible with the horizontal adjusting screw 107. A hand-tightening nut 305 is provided at the front end of the horizontal limiting ring 108. The hand-tightening nut 305 is used to facilitate manual adjustment of the horizontal adjusting screw 107. The lifting assembly 300 and the upper adjustment assembly 103 are both made of insulating and high-temperature resistant materials.

[0036] Its effects are as follows: the hand-tightening nut 305 facilitates manual adjustment of the horizontal adjustment screw 107, and the horizontal limit ring 108 is used to prevent the horizontal adjustment screw 107 from loosening after it is fixed, ensuring its stability and safety.

[0037] Working principle: By turning the lifting adjustment screw 304 with the hand-tightening nut 305, the distance between the upper connecting block 303 and the lower connecting block 302 is controlled, thereby adjusting the length of the busbar clamp between the upper clamp 100 and the lower clamp 200. At the same time, the auxiliary lifting rod 306 supports the upper clamp 100 and the lower clamp 200. The width of the upper clamp 100 is adjusted by the first connecting block 104 and the second connecting block 105 on the upper adjustment component 103, and the width of the lower clamp 200 is adjusted by the first connecting block 104 and the second connecting block 105 on the lower adjustment component 202. Simultaneously, the upper movable rod 102 provides auxiliary support for the width adjustment of the upper clamp 100, and the lower movable rod 203 provides auxiliary support for the width adjustment of the lower clamp 200, thereby realizing the length and width adjustment of the busbar clamp.

[0038] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A novel busbar clamp for switchgear, comprising an upper clamping plate (100) and a lower clamping plate (200) arranged in a left-right direction, characterized in that: The upper clamping plate (100) has an upper opening (101) at the top of the clamping opening, and an upper movable rod (102) is provided inside the upper opening (101). The lower clamping plate (200) has a lower opening (201) at the bottom of the clamping opening, and a lower movable rod (203) is provided inside the lower opening (201). An upper adjustment component (103) is symmetrically arranged on the front and rear sides of the upper opening (101), and a lower adjustment component (202) is symmetrically arranged on the front and rear sides of the lower opening (201). A lifting component (300) is provided on the left and right sides of both the upper clamping plate (100) and the lower clamping plate (200).

2. The novel busbar clamp for switchgear as described in claim 1, characterized in that: Each lifting assembly (300) includes a lower connecting block (302) connected to the side wall of the lower clamping plate (200) and an upper connecting block (303) connected to the side wall of the upper clamping plate (100). The upper connecting block (303) and the lower connecting block (302) are coaxially provided with a lifting threaded hole (307), and a lifting adjusting screw (304) is provided in the lifting threaded hole (307).

3. The novel busbar clamp for switchgear as described in claim 2, characterized in that: The upper part of the lifting adjustment screw (304) is provided with a lifting limit ring (301), and the upper end of the lifting limit ring (301) is provided with a hand-tightening nut (305).

4. The novel busbar clamp for switchgear as described in claim 3, characterized in that: An auxiliary lifting rod (306) is provided between the outermost edges of the upper clamping plate (100) and the lower clamping plate (200). The upper end of the auxiliary lifting rod (306) is embedded in the upper clamping plate (100), and the lower end of the auxiliary lifting rod (306) is embedded in the lower clamping plate (200).

5. A novel busbar clamp for switchgear as described in claim 4, characterized in that: Each of the upper-level adjustment components (103) and each of the lower-level adjustment components (202) have the same structure.

6. A novel busbar clamp for switchgear as described in claim 5, characterized in that: Each of the upper adjustment components (103) includes a first connecting block (104) fixed to one side of the clamping opening of the upper clamping plate (100) and a second connecting block (105) fixed to the other side of the clamping opening of the upper clamping plate (100). The first connecting block (104) and the second connecting block (105) are coaxially provided with a horizontal threaded hole (106), and a horizontal adjusting screw (107) is provided in the horizontal threaded hole (106).

7. A novel busbar clamp for switchgear as described in claim 6, characterized in that: A horizontal limiting ring (108) is provided at one end of the horizontal adjusting screw (107), and a hand-tightening nut (305) is provided at the front end of the horizontal limiting ring (108).