Flexible grounding wire clamp

Abstract

The invention relates to the technical field of electrical appliances, and particularly discloses a flexible grounding wire clamp which comprises a clamp body and a connecting base, connecting shafts are rotationally connected to the two sides of the clamp body, the connecting shafts penetrate through one ends of contact fingers and are fixedly connected with the contact fingers, sliding grooves are formed in the inner walls of the two sides of the clamp body, and the sliding grooves are connected with the connecting base. The sliding groove is slidably connected with a movable plate, the movable plate is fixedly connected with a first telescopic rod, one end of the first telescopic rod is fixedly provided with a connecting frame, the connecting frame is rotatably connected with an abutting roller, the abutting roller is attached to the contact finger, the movable plate is fixedly connected with a first connecting spring, and one end of the first connecting spring is fixedly connected with the connecting frame. And the telescopic rod I penetrates through and is connected with the interior of the spring I. The clamp can effectively adjust the clamping force of the clamp on a cable contact point according to different working environments, and can also achieve a cleaning effect on the cable contact point in the process of clamping the cable contact point.

Description

Technical Field

[0001] The invention relates to the technical field of electrical appliances, in particular to a flexible grounding wire clamp. Background Art

[0002] A grounding clamp is a clamp used for grounding electrical equipment. It is widely used in the fields of electricity, communications, construction, etc. The grounding clamp can effectively connect the grounding wire to the equipment lead-out terminal or interface to form a good grounding loop, preventing electrical equipment from malfunctioning or being damaged due to ground potential deviation. At the same time, it can also prevent the sudden power supply to the equipment and the induced voltage generated by the adjacent high-voltage live equipment from causing harm to the human body during high-voltage equipment maintenance or other work, and discharge the residual charge of the power-off equipment.

[0003] When the existing grounding wire clamp is in use, the wire clamp is mostly connected and clamped with the contact point of the wire by the clamp's own clamping force, and there is no convenient way to adjust the clamping force of the wire clamp. As a result, the wire clamp may become unattached under the influence of external force, resulting in the problem of low practicality of the grounding wire clamp.

[0004] For this purpose, the present invention proposes a flexible grounding wire clamp. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a flexible grounding wire clamp, which has the advantage of being able to adjust the clamping force according to the different wire contact points required by the grounding wire clamp, thereby solving the problems raised in the background technology.

[0006] The present invention provides the following technical solution: a flexible grounding wire clamp, comprising a clamp body and a connecting base, both sides of the clamp body are rotatably connected with connecting shafts, the connecting shaft passes through one end of a contact finger and is fixedly connected to the contact finger, inner walls on both sides of the clamp body are provided with sliding grooves, the sliding grooves are slidably connected with movable plates, the movable plate is fixedly connected with a telescopic rod one, one end of the telescopic rod one is fixedly installed with a connecting frame, the connecting frame is rotatably connected with an abutment roller, and the abutment roller is in contact with the contact finger, the movable plate is fixedly connected with a connecting spring one, and one end of the connecting spring one is fixedly connected to the connecting frame, and the telescopic rod one passes through the interior of the connecting spring one.

[0007] Preferably, both sides of the clamp body are rotatably connected with a rotating shaft, the rotating shaft is coaxially fixedly connected with a spur gear, and a roller brush is coaxially mounted on one end of the rotating shaft, and the bristles of the roller brush overlap each other.

[0008] Preferably, fixed rails are fixedly installed at both ends of the top of the connecting base, and the two fixed rails are slidably connected to sliding blocks. The top of the sliding block is fixedly connected to an abutment block, one end of the sliding block is rotatably connected to a rotating rod, and the rotating rod is rotatably connected to the connecting base, one of the sliding blocks is fixedly connected to a telescopic rod three, and one end of the telescopic rod three is fixedly connected to the other sliding block, one of the sliding blocks is fixedly connected to a connecting spring three, and one end of the connecting spring three is fixedly connected to the other sliding block, and the telescopic rod three passes through the interior of the connecting spring three.

[0009] Preferably, connecting plates are coaxially fixedly installed at both ends of the connecting shaft, a torsion spring is fixedly connected to the connecting plate, and one end of the torsion spring is fixedly connected to the inner wall of the clamping body.

[0010] Preferably, the inner bottom of the clamp body is fixedly connected with a telescopic rod 2, one end of the telescopic rod 2 is fixedly connected with a support plate, the inner bottom of the clamp body is fixedly connected with a connecting spring 2, and one end of the connecting spring 2 is fixedly connected to the bottom of the support plate, the telescopic rod 2 passes through the interior of the connecting spring 2, fixed racks are fixedly installed on both sides of the support plate, and the fixed racks are in contact with the side surfaces of the clamp body, and the fixed racks are meshed with the spur gears.

[0011] Preferably, a fixed block is fixedly installed on the top of one end of the connecting base, the fixed block is movably connected to a push rod, a fixed disc is fixedly connected to the outer surface of the push rod, the fixed disc is fixedly connected to a connecting spring four, and one end of the connecting spring four is fixedly connected to the fixed block, and the push rod passes through the interior of the connecting spring four.

[0012] Preferably, a socket is fixedly mounted on the top of the connecting base, a plug rod is plugged into the socket, one end of the plug rod is fixedly connected to the bottom of the clamp body, and a groove is formed on the inner wall of the other end of the plug rod.

[0013] Preferably, the clamp body is U-shaped, and the contact fingers are made of flexible material.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The flexible grounding wire clamp is provided with an adjustment component. When the contact finger in the clamp body clamps the cross bar of the cable contact point, the contact finger will generate a clamping force under the torsion force of the torsion spring, and when it is necessary to adjust the clamping force of the contact finger on the cable contact point, the movable plates on both sides of the clamp body are moved downward, thereby driving the telescopic rod 1 connected to the movable plate and the connecting frame at the end of the telescopic rod 1 to move downward together, and under the elastic force of the connecting spring 1, the abutting roller rotatably connected inside the connecting frame will always fit with the outer side of the contact finger, thereby strengthening the clamping force of the contact finger on the cable contact point, and the more the telescopic rod 1 and the connecting frame are moved downward, the greater the clamping force applied to the contact finger, thereby realizing the adjustment of the clamping force of the grounding wire clamp on the cable contact point, so that the grounding wire clamp is suitable for different working environments.

[0016] 2. The flexible grounding wire clamp is provided with a downward pressure component. When the jacking device lifts the clamp body upward, the cable release point of the support plate will be released first during use, and as the lifting movement continues, the cable release point will generate downward pressure on the support plate, thereby pushing the support plate to move downward and contracting the telescopic rod 2 connected to its bottom. At the same time, in the process of the downward movement of the support plate, the fixed racks connected on both sides of the support plate will also be driven to move downward, and the spur gear meshing with the fixed rack will be driven to rotate, thereby driving the rotating shaft coaxially fixedly connected to the spur gear and the roller brush coaxially fixedly connected to one end of the rotating shaft to rotate, thereby cleaning the cable contact point, and in the process of releasing the clamping and contracting the wire clamp, the roller brush will be driven in the reverse direction to reverse, thereby cleaning the cable contact point again, so that the wire clamp can clean the cable contact point while clamping it.

[0017] 3. The flexible grounding wire clamp is provided with a fixing component. When the grounding wire clamp is installed in use, first, the push rod is pushed so that one end of the push rod squeezes one end of a sliding block, thereby pushing it to move toward the center of the connecting base along the track of the fixed track, and under the action of the rotating rod, the other sliding block will also move toward the center of the connecting base, so that the two abutment blocks are close to each other, and then one end of the plug-in rod connected to the clamp body is inserted into the plug-in seat, and then the abutment between one end of the push rod and the sliding block is released, and then the two sliding blocks will move in the opposite direction along the track of the fixed track under the action of the telescopic rod three and the connecting spring three, and the abutment block will abut against the groove on the inner wall of one end of the plug-in rod, thereby realizing the fixed installation of the plug-in rod and the clamp body connected to its end, and the fixation can be quickly released by repeating the above operation in reverse. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention;

[0019] Figure 2 For the present invention Figure 1A side view structural schematic diagram of;

[0020] Figure 3 For the present invention Figure 1 A schematic cross-sectional structure diagram of;

[0021] Figure 4 For the present invention Figure 1 Schematic diagram of some structures;

[0022] Figure 5 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 6 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0024] Figure 7 For the present invention Figure 1 The enlarged structural diagram at C in the middle;

[0025] Figure 8 For the present invention Figure 3 Enlarged structural diagram at D in the middle.

[0026] In the figure: 1. clamping body; 2. contact finger; 3. movable plate; 4. telescopic rod one; 5. connecting frame; 6. abutting roller; 7. connecting spring one; 8. telescopic rod two; 9. supporting plate; 10. connecting spring two; 11. fixed rack; 12. rotating shaft; 13. spur gear; 14. roller brush; 15. connecting shaft; 16. torsion spring; 17. connecting base; 18. fixed track; 19. sliding block; 20. abutting block; 21. rotating rod; 22. telescopic rod three; 23. connecting spring three; 24. fixed block; 25. push rod; 26. fixed disc; 27. connecting spring four; 28. socket; 29. ​​plug rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 8A flexible grounding wire clamp comprises a clamp body 1 and a connecting base 17, both sides of the clamp body 1 are rotatably connected with a connecting shaft 15, the connecting shaft 15 passes through one end of the contact finger 2 and is fixedly connected to the contact finger 2, the inner walls of both sides of the clamp body 1 are provided with a slide groove, the slide groove is slidably connected with a movable plate 3, the movable plate 3 is fixedly connected with a telescopic rod 4, one end of the telescopic rod 4 is fixedly installed with a connecting frame 5, the connecting frame 5 is rotatably connected with an abutting roller 6, and the abutting roller 6 is in contact with the contact finger 2, the movable plate 3 is fixedly connected with a connecting spring 7, and the connecting spring 7 is fixedly connected with the connecting spring 7. One end of the connecting spring 7 is fixedly connected to the connecting frame 5, and the telescopic rod 4 runs through the interior of the connecting spring 7. Through the linkage design of the movable plate 3, the telescopic rod 4, the connecting frame 5 and the abutting roller 6, the clamping force of the contact finger 2 on the cable contact point can be easily adjusted. When the clamping force needs to be enhanced, it is only necessary to move the movable plate 3 downward to apply additional pressure to the contact finger 2 through the abutting roller 6, thereby ensuring the stability of the clamping, improving the adaptability and flexibility of the grounding wire clamp, and enabling it to cope with cables of different diameters and materials.

[0029] Among them, both sides of the clamp body 1 are rotatably connected with a rotating shaft 12, and the rotating shaft 12 is coaxially fixedly connected with a spur gear 13, and one end of the rotating shaft 12 is coaxially installed with a roller brush 14, and the brushes of the roller brush 14 overlap with each other. The rotating shaft 12 is rotatably connected on both sides of the clamp body 1, and the spur gear 13 and the roller brush 14 are coaxially fixedly connected. When the rotating shaft 12 rotates under the drive of the fixed rack 11, the roller brush 14 rotates accordingly. The brushes on the roller brush 14 are designed to overlap with each other, so that the dirt, dust and other impurities on the cable contact points can be more effectively cleaned during the rolling process.

[0030] Among them, fixed rails 18 are fixedly installed at both ends of the top of the connecting base 17, and the two fixed rails 18 are slidably connected with sliding blocks 19. The top of the sliding block 19 is fixedly connected with an abutment block 20, one end of the sliding block 19 is rotatably connected to a rotating rod 21, and the rotating rod 21 is rotatably connected to the connecting base 17, one sliding block 19 is fixedly connected to a telescopic rod three 22, and one end of the telescopic rod three 22 is fixedly connected to another sliding block 19, one sliding block 19 is fixedly connected to a connecting spring three 23, and one end of the connecting spring three 23 is fixedly connected to another sliding block 19, the telescopic rod three 22 runs through the interior of the connecting spring three 23, and the combined design of the sliding block 19, the rotating rod 21, the telescopic rod three 22 and the connecting spring three 23 forms an adaptive clamping system, thereby realizing the rapid installation and disassembly of the grounding wire clamp.

[0031] Among them, both ends of the connecting shaft 15 are coaxially fixed with connecting plates, the connecting plate is fixedly connected to a torsion spring 16, one end of the torsion spring 16 is fixedly connected to the inner wall of the clamp body 1, when the contact finger 2 contacts the cable contact point and moves to the outside of the clamp body 1 under its squeezing action, the torsion spring 16 can provide partial basic clamping force for the contact finger 2.

[0032] Among them; the inner bottom of the clamp body 1 is fixedly connected with a telescopic rod 2 8, one end of the telescopic rod 2 8 is fixedly connected with a support plate 9, the inner bottom of the clamp body 1 is fixedly connected with a connecting spring 2 10, and one end of the connecting spring 2 10 is fixedly connected to the bottom of the support plate 9, the telescopic rod 2 8 runs through the inside of the connecting spring 2 10, and fixed racks 11 are fixedly installed on both sides of the support plate 9, and the fixed racks 11 are in contact with the side of the clamp body 1, and the fixed racks 11 are meshed with the spur gear 13;

[0033] Telescopic rod 28 in this application Figure 7 In this case, the telescopic rod 8 is configured to be composed of two linear rods which are nested with each other, and the telescopic movement is achieved by relative sliding between the two linear rods.

[0034] Among them; a fixed block 24 is fixedly installed on the top of one end of the connecting base 17, the fixed block 24 is movably connected to a push rod 25, a fixed disc 26 is fixedly connected to the outer surface of the push rod 25, the fixed disc 26 is fixedly connected to a connecting spring four 27, and one end of the connecting spring four 27 is fixedly connected to the fixed block 24, and the push rod 25 passes through the interior of the connecting spring four 27.

[0035] Among them; the top of the connecting base 17 is fixedly installed with a socket 28, the socket 28 is plugged with a plug rod 29, and one end of the plug rod 29 is fixedly connected to the bottom of the clamp body 1, and the inner wall of the other end of the plug rod 29 is provided with a groove.

[0036] The clamp body 1 is U-shaped, and the contact finger 2 is made of a flexible material.

[0037] Among them, the grounding wire clamp cooperates with the existing lifting device to play the functions of automatic clamping, hanging state detection and conductor detection.

[0038] Working principle: when in use, first push the push rod 25 so that one end of it applies pressure to one of the sliding blocks 19, causing the sliding block to slide along the predetermined path of the fixed track 18 toward the center of the connecting base 17. At the same time, due to the linkage mechanism of the rotating rod 21, the other sliding block 19 will also move accordingly toward the center of the connecting base 17, causing the two abutment blocks 20 to approach each other. Next, the user accurately inserts one end of the plug-in rod 29 equipped with the clamp body 1 into the plug-in seat 28. After the insertion is completed, release the push rod 25 so that it no longer applies pressure to the sliding block 19. At this time, the two sliding blocks 19 will move in opposite directions along the fixed track 18 under the rebound force of the telescopic rod three 22 and the elastic action of the connecting spring three 23 until their respective abutment blocks 20 are tightly fitted with the groove on the inner wall of one end of the plug-in rod 29, thereby achieving stable installation of the plug-in rod 29 and the clamp body 1 connected thereto.

[0039] Secondly, the connection base 17 and the device on the top are lifted by the supporting lifting rod to ground and clamp. When the contact finger 2 in the clamp body 1 clamps the crossbar of the cable contact point, the contact finger 2 will naturally generate a certain clamping force with the help of the torsion force of the torsion spring 16. If the clamping tightness of the contact finger 2 on the cable contact point needs to be adjusted according to actual needs, the operator can simply push down the movable plates 3 on both sides of the clamp body 1. This action will link the telescopic rod 14 and the connection frame 5 at its end to move downward synchronously. Under the elastic restoring force of the connection spring 17, the flexibly rotating abutting roller 6 inside the connection frame 5 will fit closely to the outer surface of the contact finger 2, forming a dynamic reinforcement mechanism, which effectively increases the clamping pressure of the contact finger 2 on the cable contact point. It is worth noting that as the downward movement distance of the movable plate 3, the telescopic rod 4 and the connecting frame 5 increases, the additional clamping force applied to the contact finger 2 by the abutting roller 6 will also be correspondingly enhanced, thereby achieving fine adjustment of the clamping force. At the same time, as the lifting action proceeds, the cable contact point will naturally exert downward pressure on the support plate 9, and this pressure pushes the support plate 9 to move downward. The downward movement of the support plate 9 is not only accompanied by the contraction of the telescopic rod 8 connected to its bottom, but also transmits power through the racks 11 fixed on both sides. The downward movement of the rack 11 drives the spur gear 13 meshing with it to rotate, and the rotation of the spur gear 13 further drives the coaxially fixed rotating shaft 12 to rotate, and the roller brush 14 at one end of the rotating shaft 12 also begins to rotate. This rotation action effectively performs a preliminary cleaning of the cable contact point and removes possible dust or impurities, thereby maintaining a good transmission effect of the cable contact point.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible grounding wire clamp, comprising a clamp body (1) and a connecting base (17), both sides of the clamp body (1) are rotatably connected with a connecting shaft (15), the connecting shaft (15) passes through one end of a contact finger (2) and is fixedly connected to the contact finger (2), the inner walls of both sides of the clamp body (1) are provided with a sliding groove, the sliding groove is slidably connected with a movable plate (3), the movable plate (3) is fixedly connected with a telescopic rod (4), one end of the telescopic rod (4) is fixedly installed with a connecting frame (5), the connecting frame (5) is rotatably connected with an abutting roller (6), and the abutting roller (6) is in contact with the contact finger (2), the movable plate (3) is fixedly connected with a connecting spring (7), and one end of the connecting spring (7) is fixedly connected to the connecting frame (5), and the telescopic rod (4) passes through the interior of the connecting spring (7).

2. A flexible grounding clamp according to claim 1, characterized in that: Both sides of the clamp body (1) are rotatably connected to a rotating shaft (12), the rotating shaft (12) is coaxially fixedly connected to a spur gear (13), and one end of the rotating shaft (12) is coaxially mounted with a roller brush (14).

3. A flexible grounding clamp according to claim 2, characterized in that: The brushes of the roller brush (14) overlap each other.

4. The flexible grounding clamp according to claim 1, characterized in that: Both ends of the top of the connecting base (17) are fixedly installed with fixed rails (18), and the two fixed rails (18) are slidably connected with sliding blocks (19). The top of the sliding block (19) is fixedly connected with an abutment block (20), one end of the sliding block (19) is rotatably connected with a rotating rod (21), and the rotating rod (21) is rotatably connected to the connecting base (17), one of the sliding blocks (19) is fixedly connected with a telescopic rod three (22), and one end of the telescopic rod three (22) is fixedly connected to the other sliding block (19), one of the sliding blocks (19) is fixedly connected with a connecting spring three (23), and one end of the connecting spring three (23) is fixedly connected to the other sliding block (19), and the telescopic rod three (22) passes through the interior of the connecting spring three (23).

5. The flexible grounding clamp according to claim 1, characterized in that: Connecting plates are coaxially fixedly mounted at both ends of the connecting shaft (15), the connecting plates are fixedly connected to a torsion spring (16), and one end of the torsion spring (16) is fixedly connected to the inner wall of the clamping body (1).

6. The flexible grounding clamp according to claim 2, characterized in that: The inner bottom of the clamp body (1) is fixedly connected to a second telescopic rod (8), one end of which is fixedly connected to a support plate (9), the inner bottom of the clamp body (1) is fixedly connected to a second connecting spring (10), one end of which is fixedly connected to the bottom of the support plate (9), the second telescopic rod (8) passes through the interior of the second connecting spring (10), fixed racks (11) are fixedly installed on both sides of the support plate (9), and the fixed racks (11) are in contact with the side surfaces of the clamp body (1), and the fixed racks (11) are meshed with the spur gears (13).

7. The flexible grounding clamp according to claim 1, characterized in that: A fixing block (24) is fixedly installed on the top of one end of the connecting base (17), and the fixing block (24) is movably connected to a push rod (25). A fixing disc (26) is fixedly connected to the outer surface of the push rod (25), and the fixing disc (26) is fixedly connected to a connecting spring four (27), and one end of the connecting spring four (27) is fixedly connected to the fixing block (24), and the push rod (25) passes through the interior of the connecting spring four (27).

8. The flexible grounding clamp according to claim 1, characterized in that: A plug socket (28) is fixedly mounted on the top of the connecting base (17), a plug rod (29) is plugged into the plug socket (28), one end of the plug rod (29) is fixedly connected to the bottom of the clamp body (1), and a groove is formed on the inner wall of the other end of the plug rod (29).

9. The flexible grounding clamp according to claim 1, characterized in that: The clamping body (1) has a U-shaped appearance.

10. The flexible grounding clamp according to claim 1, characterized in that: The contact finger (2) is made of flexible material.

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