A suspension wire clamp

Abstract

The utility model relates to a suspension wire clamp applied to the technical field of power transmission line tools, which realizes that when the cable and the suspension wire clamp body are installed, the cable can be pushed upwards through a slider, and when the slider contacts the top wall of the slide groove, the steel ball in the inner groove corresponds to the clamping groove, and the steel ball is pushed into the clamping groove and clamped by the elastic force of a tension spring, so that a pressure plate is clamped above the clamping groove, and then the cable is inserted into the clamping groove and installed, and then the pressure plate is slid downward, and the steel ball can be pulled out of the clamping groove by force, so that the pressure plate is clamped on the cable to wrap it, thereby fixing the cable, and at this time a U-shaped bolt is clamped on the pressure plate and inserted into the limiting hole to penetrate to the bottom of the limiting hole, and then threadedly fixed by a nut, and after being fixed, a sealing cover is put on the outside of the nut, so that the cable can be installed effectively without removing the pressure plate, and the pressure plate and the cable are automatically positioned and clamped, saving time and labor.

Description

Technical Field

[0001] The utility model relates to a suspension wire clamp, in particular to a suspension wire clamp used in the technical field of power transmission line tools. Background Art

[0002] Suspension wire clamps are generally used to fix conductors on the insulator string of a straight pole tower, or to hang lightning arresters on a straight pole tower. They are also used to support transposition conductors on transposition towers and fix jumpers on tension corner pole towers.

[0003] The specification of Chinese patent CN217956538U discloses a suspension wire clamp, including a suspension wire clamp shell, a support plate is fixedly installed in front of the bottom end of the suspension wire clamp shell, a fixing plate is fixedly installed at the bottom end of the middle part of the back of the support plate, and the rear end of the fixing plate extends to the lower part of the rear side of the suspension wire clamp shell. The utility model arranges a first metal pulley, a second metal pulley and an insulator string, and firstly places the conductor between the first metal pulley and the second metal pulley inside the suspension wire clamp shell and clamps and fixes it. If it is necessary to reset the suspension wire clamp shell and the insulator string as a whole, and because the first metal pulley and the second metal pulley rotate at the same time, the sliding friction between the two is changed into rolling friction, resulting in a reduction in friction, thereby making the overall reset movement of the suspension wire clamp shell and the insulator string smoother, which brings convenience to the operator's operation.

[0004] The specification of Chinese patent CN210350740U discloses a suspension wire clamp, which includes a roughly U-shaped bracket and a clamping block fixedly installed in the bracket, a through groove for clamping the cable is arranged on the central axis of the clamping block, and an opening portion connected to the through groove is also arranged on the top surface of the clamping block, the bracket includes a first clamping arm and a second clamping arm for clamping the clamping block, the bottoms of the first clamping arm and the second clamping arm are pivotally connected by a pivot shaft, a mounting portion for fixing the mounting bracket is arranged on the first clamping arm, the clamping block is fixedly connected to the first clamping arm, and a locking piece is also arranged at the opening of the bracket; with the suspension wire clamp of the above structure, since the clamping block is fixed on the bracket, there is no need to worry about the clamping block falling off, and since the first clamping arm and the second clamping arm are rotatably connected, when installing the cable, the clamping space formed by the first clamping arm and the second clamping arm on the bracket can be opened, making the work of stretching the opening portion on the clamping block easier.

[0005] The existing suspension wire clamp needs to remove the pressure plate every time the cable is installed, and then find the correct position and press it with the cable, which is time-consuming and laborious. Utility Model Content

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the existing suspension wire clamp needs to remove the pressing plate each time the cable is installed, and then find the correct position and press it with the cable, which is time-consuming and laborious.

[0007] In order to solve the above problems, the utility model provides a suspension wire clamp, including a suspension wire clamp body with a clamping groove, a cable is installed in the clamping groove, and sliding grooves are symmetrically opened on the inner wall of the clamping groove, a pressure plate with an arc-shaped depression at the bottom is slidably connected between the two sliding grooves, sliding blocks are symmetrically fixedly connected at both ends of the pressure plate and the sliding blocks are engaged with the sliding grooves, inner grooves are symmetrically opened at both ends of the sliding block, a tension spring is fixedly connected in the inner groove, a steel ball is fixedly connected at one end of the tension spring away from the inner groove, and a clamping groove corresponding to the steel ball is symmetrically opened on the inner wall of the sliding groove, and the overlapping area of ​​the projection of the steel ball and the clamping groove is less than half of the cross-sectional area of ​​the steel ball, and they are engaged with each other, two groups of limiting holes are symmetrically opened on the suspension wire clamp body, and U-shaped bolts are detachably connected in each group of limiting holes, and the U-shaped bolts are threadedly fixed to the suspension wire clamp body through nuts.

[0008] In the above-mentioned suspension wire clamp, the cable can be installed effectively without removing the pressure plate, and the pressure plate and the cable are automatically positioned and engaged, saving time and labor.

[0009] As a further improvement of the present application, two groups of connecting blocks are symmetrically fixedly connected at the top ends of both sides of the pressure plate, and the number of connecting blocks in each group is two. The surfaces of the two connecting blocks in each group that are close to each other are connected by a clamp with an arc-shaped cross-section through a damping shaft, and the clamp is engaged with a U-shaped bolt, and the U-shaped bolt is located on the inner side of the clamp.

[0010] As a further improvement of the present application, an air bag that fits the inner wall of the clamping groove is detachably connected to the clamping groove, and the air bag contacts the surface of the cable.

[0011] As a further improvement of the present application, anti-slip pads are fixedly connected to the inner walls of the two clamps, and handles are fixedly connected to the top surface walls of the clamps.

[0012] As another improvement of the present application, a groove is chiseled at the bottom of the clamping groove, a clamping block corresponding to the groove is fixedly connected to the bottom end of the airbag, and the clamping block is engaged with the groove.

[0013] As another improved supplement of the present application, an inflation hole with a sealing cover is installed on the surface of the airbag.

[0014] As another improvement supplement to the present application, the distance between the airbag in the inflated state and the arc-shaped depression at the bottom of the pressure plate is equal to the cable diameter.

[0015] In summary, this solution can be realized. When the cable and the suspension wire clamp body are installed, the cable can be pushed upward through the slider. When the slider contacts the top wall of the slide groove, the steel ball in the inner groove corresponds to the card groove. The steel ball is pushed into the card groove and engaged by the elastic force of the tension spring, so that the slider can be positioned, the pressure plate is clamped above the clamp groove, and then the cable is inserted into the clamp groove and installed, and then the pressure plate is slid downward. Since the contact area between the steel ball and the card groove is less than half of the steel ball, the steel ball is less intercepted by the card groove when moving downward, which can make it move smoothly. The inside of the detachable card slot makes the pressure plate clamped on the cable to wrap it, thereby fixing the cable in the clamping slot. At this time, the U-shaped bolt is clamped on the pressure plate and inserted into the limiting hole to the bottom of the limiting hole, and then threadedly fixed by the nut. After it is fixed, the sealing cover is put on the outside of the nut to protect it, so as to prevent the nut from being corroded and rusted by rainwater and difficult to disassemble. The cable can be installed effectively without removing the pressure plate, and the pressure plate and the cable are automatically positioned and engaged, saving time and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an axonometric diagram of the installation state of the suspension wire clamp of the first and second embodiments of the present application;

[0017] Figure 2 This is a structural diagram of the pressure plate of the first and second embodiments of the present application;

[0018] Figure 3 For this application Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a diagram showing the internal structure of the chute according to the first embodiment of the present application;

[0020] Figure 5 This is an axonometric view of a suspension wire clamp according to a second embodiment of the present application;

[0021] Figure 6 This is a structural diagram of a suspension wire clamp according to a second embodiment of the present application;

[0022] Figure 7 This is a diagram of the airbag structure of the second embodiment of the present application.

[0023] Description of the numbers in the figure:

[0024] 1. Suspension wire clamp body; 2. Limiting hole; 3. U-shaped bolt; 4. Pressure plate; 5. Clamp; 6. Cable; 7. Slide groove; 8. Slider; 9. Steel ball; 10. Inner groove; 11. Connecting block; 12. Damping shaft; 13. Clamping groove; 14. Tension spring; 15. Airbag; 16. Nut; 17. Inflating hole; 18. Clamping groove; 19. Recess; 20. Clamping block. DETAILED DESCRIPTION

[0025] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0026] The first implementation method:

[0027] Figure 1-4 A suspension wire clamp is shown, comprising a suspension wire clamp body 1 with a clamping groove 18, in which a cable 6 is installed, and an inner wall of the clamping groove 18 is symmetrically bored with sliding grooves 7, a pressure plate 4 with an arc-shaped depression at the bottom is slidably connected between the two sliding grooves 7, sliders 8 are symmetrically fixedly connected at both ends of the pressure plate 4 and the sliders 8 are engaged with the sliding grooves 7, inner grooves 10 are symmetrically bored at both ends of the slider 8, a tension spring 14 is fixedly connected in the inner groove 10, a steel ball 9 is fixedly connected at one end of the tension spring 14 away from the inner groove 10, a clamping groove 13 corresponding to the steel ball 9 is symmetrically bored with the inner wall of the sliding groove 7, and the projection overlapping area of ​​the steel ball 9 and the clamping groove 13 is less than half of the cross-sectional area of ​​the steel ball 9, and they are engaged with each other, two groups of limiting holes 2 are symmetrically bored on the suspension wire clamp body 1, each group of limiting holes 2 is detachably connected with a U-shaped bolt 3, and the U-shaped bolt 3 is threadedly fixed to the suspension wire clamp body 1 through a nut 16.

[0028] This solution can be achieved. When the cable 6 and the suspension clamp body 1 are installed, the cable 6 can be pushed upward through the slider 8. When the slider 8 contacts the top wall of the slide groove 7, the steel ball 9 in the inner groove 10 corresponds to the card groove 13. The steel ball 9 is pushed into the card groove 13 by the elastic force of the tension spring 14 to engage with the card groove 13, so that the slider 8 can be positioned, and the pressure plate 4 can be clamped above the clamping groove 18. Then, the cable 6 is inserted into the clamping groove 18 and installed, and then the pressure plate 4 is slid downward. Since the contact area between the steel ball 9 and the card groove 13 is less than half of the steel ball 9, the interception effect of the steel ball 9 received by the card groove 13 is small when it moves downward, which can make it The cable 6 is smoothly disengaged from the slot 13, so that the pressure plate 4 is clamped on the cable 6 to wrap it, thereby fixing the cable 6 in the clamping slot 18. At this time, the U-shaped bolt 3 is clamped on the pressure plate 4 and inserted into the limiting hole 2 to the bottom of the limiting hole 2, and then threadedly fixed by the nut 16. After fixing, the sealing cover is put on the outside of the nut 16 to protect it, so as to prevent rain from corroding and rusting the nut 16, which is difficult to disassemble. The cable 6 can be installed effectively without removing the pressure plate 4, and the pressure plate 4 and the cable 6 are automatically positioned and engaged, saving time and labor.

[0029] The second implementation method:

[0030] Figure 1-3 and Figure 5-7It is shown that two groups of connecting blocks 11 are symmetrically fixedly connected to the top ends of both sides of the pressure plate 4, and the number of connecting blocks 11 in each group is two, and the surfaces of the two connecting blocks 11 in each group that are close to each other are rotatably connected with a clamp 5 with an arc-shaped cross-section through a damping shaft 12, and the clamp 5 is engaged with the U-shaped bolt 3, and the U-shaped bolt 3 is located on the inner side of the clamp 5, and an airbag 15 that is in contact with the inner wall of the clamp groove 18 is detachably connected in the clamp groove 18, and the airbag 15 is in conflict with the surface of the cable 6, and anti-slip pads are fixedly connected to the inner walls of the two clamps 5, and a handle is fixedly connected to the top surface wall of the clamp 5, a groove 19 is cut at the bottom of the clamp groove 18, and a block 20 corresponding to the groove 19 is fixedly connected to the bottom end of the airbag 15, and the block 20 is engaged with the groove 19, and an inflation hole 17 with a sealing cover is installed on the surface of the airbag 15, and the distance between the airbag 15 and the arc-shaped depression at the bottom of the pressure plate 4 when inflated is equal to the diameter of the cable 6.

[0031] This solution can be realized. When the cable 6 and the suspension clamp body 1 are installed, the card block 20 at the bottom of the airbag 15 can be inserted into the groove 19, so that the airbag 15 is stuck in the clamping groove 18. At this time, the cable 6 is stuck in the airbag 15, and then the airbag 15 is inflated through the inflation hole 17 to wrap the airbag 15, thereby avoiding friction damage between the cable 6 and the suspension clamp body 1. When the cable 6 expands and contracts in winter or summer, the card block can be controlled to The tightness between the cable 6 and the pressure plate 4 can be adjusted by adjusting the amount of gas filled in 20, and then the U-shaped bolt 3 is inserted into the limiting hole 2 to limit the pressure plate 4, and the cable 6 is tightly clamped. After it is fixed, the clamp 5 can be rotated through the damping shaft 12 to engage with the U-shaped bolt 3 to reinforce the clamp 5 to avoid the risk of the limiting hole 2 shaking when the nut 16 becomes loose, which makes the pressure plate 4 fall off. When the limiting hole 2 needs to be removed, the clamp 5 can be easily opened by holding the handle.

[0032] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A suspension wire clamp, comprising a suspension wire clamp body (1) with a clamping groove (18), characterized in that: A cable (6) is installed in the clamping groove (18), and the inner wall of the clamping groove (18) is symmetrically cut with sliding grooves (7). A pressure plate (4) with an arc-shaped depression at the bottom is slidably connected between the two sliding grooves (7). Slide blocks (8) are symmetrically fixedly connected at both ends of the pressure plate (4), and the slide blocks (8) are engaged with the sliding grooves (7). Inner grooves (10) are symmetrically cut at both ends of the slide block (8), and a tension spring (14) is fixedly connected in the inner groove (10). The tension spring (14) is away from the inner groove ( 10) one end of the guide rail is fixedly connected to a steel ball (9), the inner wall of the slide groove (7) is symmetrically chiseled with a slot (13) corresponding to the steel ball (9), and the projected overlapping area of ​​the steel ball (9) and the slot (13) is less than half of the cross-sectional area of ​​the steel ball (9), and they are engaged with each other, and two groups of limiting holes (2) are symmetrically chiseled on the suspension wire clamp body (1), each group of the limiting holes (2) is detachably connected with a U-shaped bolt (3), and the U-shaped bolt (3) is threadedly fixed to the suspension wire clamp body (1) through a nut (16).

2. A suspension wire clamp according to claim 1, characterized in that: Two groups of connection blocks (11) are symmetrically fixedly connected to the top ends of both sides of the pressure plate (4), each group of connection blocks (11) has two connection blocks, and surfaces of the two connection blocks (11) in each group that are close to each other are rotatably connected to a clamp (5) with an arc-shaped cross section via a damping shaft (12), and the clamp (5) is engaged with the U-shaped bolt (3), and the U-shaped bolt (3) is located on the inner side of the clamp (5).

3. A suspension clamp according to claim 1, characterized in that: An air bag (15) that fits the inner wall of the clamping groove (18) is detachably connected to the clamping groove (18), and the air bag (15) contacts the surface of the cable (6).

4. A suspension clamp according to claim 2, characterized in that: The inner walls of the two clamps (5) are both fixedly connected with anti-slip pads, and the top surface walls of the clamps (5) are both fixedly connected with handles.

5. A suspension clamp according to claim 3, characterized in that: A groove (19) is cut at the bottom of the clamping groove (18), and a clamping block (20) corresponding to the groove (19) is fixedly connected to the bottom end of the airbag (15), and the clamping block (20) is engaged with the groove (19).

6. A suspension clamp according to claim 5, characterized in that: An inflation hole (17) with a sealing cover is installed on the surface of the air bag (15).

7. A suspension clamp according to claim 3, characterized in that: The distance between the airbag (15) in the inflated state and the arc-shaped depression at the bottom of the pressure plate (4) is equal to the diameter of the cable (6).

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