An adjustable angle fixing clamp for connecting power cable and switch cabinet

Abstract

The application discloses an adjustable-angle fixing clamp for connecting a power cable and a switch cabinet, which comprises a switch cabinet body, the switch cabinet body is provided with wire holes arranged at equal distances, a first clamp is arranged in the wire hole, and a second clamp is arranged at the end of the first clamp outside the switch cabinet body; the first clamp comprises a fixing tube fixed to the inner wall of the wire hole, and a clamping block is fixed to the fixing tube through bolts. According to the distribution direction of the power cable and the adjustment requirement of the power cable, the position of the second clamp is adjusted, so that the power cable is prevented from being excessively bent to cause damage to the power cable, the service life of the power cable is prolonged, meanwhile, the installation direction of the power cable can be adapted to the installation environment of the switch cabinet, and the application environment range of the switch is improved.

Description

Technical Field

[0001] This invention relates to the field of switchgear technology, and more specifically, to an adjustable angle fixing clamp for connecting power cables to switchgear. Background Technology

[0002] In power systems, the connection between cable terminations and switchgear is a critical aspect of electrical installation engineering. To ensure a safe and reliable connection, traditional cable clamps generally adopt a "fixed" structure, characterized by a rigid connection between the base and the cable clamp body, preventing relative rotation between the two.

[0003] This structure can meet the requirements under ideal working conditions, but it has the following problems:

[0004] 1. Poor angle adaptability: When the angle of the cable clamp body does not match the actual direction of the cable, the cable often needs to be forcibly bent to complete the connection. This not only affects the fastening effect, but may also damage the cable insulation layer.

[0005] 2. The bending radius of the cable is difficult to guarantee. If the bending radius of the cable is insufficient during the connection process (generally required to be ≥15 times the cable diameter), it will accelerate the aging of the insulation. Fixed clamps cannot adjust the angle according to the actual situation, which increases the risk of exceeding the bending radius standard. Summary of the Invention

[0006] In view of the problems existing in the prior art, the purpose of this invention is to provide an adjustable angle fixing clamp for connecting power cables and switch cabinets, which solves the problems of poor angle adaptability, difficulty in ensuring cable bending radius, and easy damage to cable insulation layer caused by traditional fixed cable fixing clamps.

[0007] To solve the above problems, the present invention adopts the following technical solution;

[0008] An adjustable angle fixing clamp for connecting power cables to a switch cabinet includes a switch cabinet body, on which are equally spaced wire holes, a first clamp is installed inside the wire holes, and a second clamp is installed at the end of the first clamp located outside the switch cabinet body.

[0009] The first clamp includes a fixing tube fixedly installed on the inner wall of the wire hole, and a clamping block is fixedly installed on the fixing tube by bolts;

[0010] The second clamp includes a first clamping plate, and connecting rods are fixedly connected to both sides of the first clamping plate by bolts. A collar is rotatably connected between the ends of the two connecting rods away from the first clamping plate. The collar is sleeved on the fixed tube and rotatably connected to the fixed tube. A fixing bolt is threaded onto the collar. A second clamping plate is hinged to the first clamping plate. The side of the second clamping plate away from the hinge of the first clamping plate is fixedly connected to the first clamping plate by bolts.

[0011] As a further description of the above technical solution:

[0012] Both the first and second clamping plates are semi-circular plates, and anti-slip protrusions are integrally formed on the opposite side of both the first and second clamping plates.

[0013] As a further description of the above technical solution:

[0014] Both sides of the collar are threaded with positioning screws, which are located at the rotatable connection between the connecting rod and the collar.

[0015] As a further description of the above technical solution:

[0016] The bottom of the clamping block is integrally formed with anti-slip texture, and the bottom of the clamping block extends to the inside of the fixing tube.

[0017] As a further description of the above technical solution:

[0018] Both sides of the first clamping plate are integrally formed with U-shaped limiting blocks, and the connecting end of the connecting rod and the first clamping plate is located inside the U-shaped limiting block and fits against the inner wall of the U-shaped limiting block.

[0019] Compared with the prior art, the advantages of this invention are:

[0020] This solution adjusts the position of the second clamp according to the distribution direction of the power cable and the required adjustment of the power cable, so that the bending angle of the first clamp and the second clamp matches the bending direction of the power cable. This avoids excessive bending of the power cable and damage, and improves the service life of the power cable. At the same time, it can adapt to the installation direction of the power cable according to the installation environment of the switch cabinet, thereby expanding the applicable environment range of the switch. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the connection structure between the main body of the switch cabinet and the first clamp of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection structure between the first clamp and the second clamp of the present invention.

[0023] Explanation of the labels in the diagram:

[0024] 1. Switch cabinet body; 2. Wiring hole; 3. First clamp; 31. Fixing tube; 32. Clamping block; 4. Second clamp; 41. First clamping plate; 42. Connecting rod; 43. Collar; 44. Fixing bolt; 45. Second clamping plate; 46. Positioning screw; 47. U-shaped limiting block. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] Please see Figure 1 and Figure 2 In this invention, an adjustable angle fixing clamp for connecting a power cable to a switch cabinet includes a switch cabinet body 1. The switch cabinet body 1 has wire holes 2 arranged at equal intervals. A first clamp 3 is installed inside the wire holes 2. A second clamp 4 is installed at the end of the first clamp 3 located outside the switch cabinet body 1. The first clamp 3 includes a fixing tube 31 fixedly installed on the inner wall of the wire holes 2. A clamping block 32 is fixedly installed on the fixing tube 31 by bolts.

[0027] The second clamp 4 includes a first clamping plate 41. Both sides of the first clamping plate 41 are fixedly connected to connecting rods 42 by bolts. A collar 43 is rotatably connected between the ends of the two connecting rods 42 away from the first clamping plate 41. The collar 43 is sleeved on the fixed tube 31 and rotatably connected to the fixed tube 31. A fixing bolt 44 is threaded on the collar 43. A second clamping plate 45 is hinged to the first clamping plate 41. The side of the second clamping plate 45 away from the hinge point of the first clamping plate 41 is fixedly connected to the first clamping plate 41 by bolts.

[0028] In use, the power cable is inserted into the switch cabinet body 1 through the first clamp 3 in the through hole 2, and then the clamp 32 is fixed to the fixing pipe 31 with bolts. The power cable is initially clamped and fixed by the bottom of the clamp 32 cooperating with the inside of the fixing pipe 31. Then, according to the distribution direction of the power cable and the adjustment requirements of the power cable, the position of the second clamp 4 is adjusted and fixed, so that the bending angle of the first clamp 3 and the second clamp 4 conforms to the bending direction of the power cable. The power cable is fixed by bolts between the first clamp plate 41 and the second clamp plate 45 to ensure the stability of the power cable, avoid damage to the power cable caused by excessive bending, and improve the service life of the power cable. At the same time, it can adapt to the installation direction of the power cable according to the installation environment of the switch cabinet, thereby improving the applicable environment range of the switch.

[0029] Wherein: the first clamping plate 41 and the second clamping plate 45 are both semi-circular plates, and the opposite side of the first clamping plate 41 and the second clamping plate 45 are integrally formed with anti-slip protrusions.

[0030] In this invention, the two semi-circular plates, the first clamping plate 41 and the second clamping plate 45, are easy to assemble to clamp and fix the power cable, and the anti-slip protrusions further increase friction, thereby improving the fixing effect and the stability of the power cable.

[0031] The collar 43 has a positioning screw 46 threadedly connected to both sides, and the positioning screw 46 is located at the rotatable connection between the connecting rod 42 and the collar 43.

[0032] In use, by turning the two positioning screws 46, the bending angle between the first clamp 3 and the second clamp 4 can be easily adjusted. Tightening the positioning screws 46 can fix the position of the second clamp 4, thereby providing support for the bent part of the power cable to a certain extent. This adjustability can adapt to the bending degree of the power cable while avoiding excessive concentration of bending positions and causing bending.

[0033] Among them, the bottom of the clamping block 32 is integrally formed with anti-slip texture, and the bottom of the clamping block 32 extends to the inner side of the fixing tube 31.

[0034] In this embodiment, the anti-slip texture increases the friction between the clamping block 32 and the power cable, ensuring that the clamping block 32 can contact the surface of the power cable inserted into the fixing tube 31, thereby achieving the function of clamping and fixing.

[0035] Among them, the left and right sides of the first clamping plate 41 are integrally formed with U-shaped limiting blocks 47, and the connecting end of the connecting rod 42 and the first clamping plate 41 is located inside the U-shaped limiting block 47 and fits against the inner wall of the U-shaped limiting block 47.

[0036] In this embodiment, the connection stability between the connecting rod 42 and the first clamping plate 41 is limited by the U-shaped limiting block 47 to prevent changes in angle.

[0037] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. An adjustable angle fixing clamp for connecting power cables to a switchgear, comprising a switchgear body (1), characterized in that: The switch cabinet body (1) is provided with wire holes (2) arranged at equal intervals. A first clamp (3) is installed inside the wire hole (2). A second clamp (4) is installed at the end of the first clamp (3) located outside the switch cabinet body (1). The first clamp (3) includes a fixing tube (31) fixedly installed on the inner wall of the wire hole (2), and a clamping block (32) is fixedly installed on the fixing tube (31) by bolts. The second clamp (4) includes a first clamping plate (41), and connecting rods (42) are fixedly connected to both sides of the first clamping plate (41) by bolts. A collar (43) is rotatably connected between the ends of the two connecting rods (42) away from the first clamping plate (41). The collar (43) is sleeved on the fixed tube (31) and rotatably connected to the fixed tube (31). A fixing bolt (44) is threaded on the collar (43). A second clamping plate (45) is hinged to the first clamping plate (41). The side of the second clamping plate (45) away from the hinge of the first clamping plate (41) is fixedly connected to the first clamping plate (41) by bolts.

2. The adjustable angle fixing clamp for connecting power cables to switchgear according to claim 1, characterized in that: Both the first clamping plate (41) and the second clamping plate (45) are semi-circular plates, and anti-slip protrusions are integrally formed on the opposite side of the first clamping plate (41) and the second clamping plate (45).

3. The adjustable angle fixing clamp for connecting power cables to switchgear according to claim 1, characterized in that: Both sides of the collar (43) are threaded with positioning screws (46), which are located at the rotatable connection between the connecting rod (42) and the collar (43).

4. The adjustable angle fixing clamp for connecting power cables to switchgear according to claim 1, characterized in that: The bottom of the clamp (32) is integrally formed with anti-slip texture, and the bottom of the clamp (32) extends to the inside of the fixing tube (31).

5. An adjustable angle fixing clamp for connecting a power cable to a switchgear according to claim 1, characterized in that: The first clamping plate (41) has U-shaped limiting blocks (47) integrally formed on both the left and right sides. The connecting end of the connecting rod (42) and the first clamping plate (41) is located inside the U-shaped limiting block (47) and fits against the inner wall of the U-shaped limiting block (47).

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