Wire clamp for electric power engineering

Abstract

The utility model relates to the technical field of electric power engineering, in particular to a wire clamp for electric power engineering, which comprises a hoop, a pressure-bearing box is fixedly mounted at the top end of the hoop, a locking mechanism is arranged at the bottom end of the pressure-bearing box, a plurality of supporting columns are mounted on the top wall of the pressure-bearing box in a sliding manner, and a pressure-bearing plate is fixedly mounted at the top ends of the supporting columns together. The outer side of the supporting column is sleeved with a first spring, one end of the first spring is fixedly connected with the pressure bearing plate, and the other end of the first spring is fixedly connected with the top side of the pressure bearing box. When the connecting shaft pressed downwards by accumulated snow slides in the spiral guide groove, the guide rod and the half gear rotate, when the half gear rotates, the rack is driven to move through meshing transmission, the rack resets to drive accumulated snow on the clamp and the pressure-bearing box to shake off, the influence of the accumulated snow on the clamp and the pressure-bearing box is reduced, and the service life of the clamp and the pressure-bearing box is prolonged. The possibility of loosening of the cable due to accumulated snow is reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power engineering, in particular to a wire clamp for electric power engineering. Background Art

[0002] Power engineering wire clamps are metal accessories used in the field of electrical engineering, mainly used to fix or connect wires. This type of wire clamp plays an important role in power transmission lines, being able to withstand the tension of wires or lightning conductors while ensuring good electrical contact.

[0003] The wire clamp of power engineering is related to the safety and stable operation of the entire power system. Its stability and reliability are crucial to the safe operation of the entire power system. However, in the cold winter, especially in areas with frequent snowfall, when snow gradually accumulates on the wire clamp, its weight will continue to increase, thereby exerting more and more downward pressure on the wire clamp. This additional burden may not only weaken the fastening force of the wire clamp, but may even cause the wire clamp to loosen. Once the wire clamp is loose, the conductor is prone to shaking under the action of wind and other external forces, thereby increasing the risk of wire breakage. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a wire clamp for electric power engineering, which can effectively solve the problem of the prior art that the wire clamp becomes loose due to excessive snow accumulation during snowfall.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The utility model provides a wire clamp for electric power engineering, comprising a clamp, a pressure box is fixedly installed on the top of the clamp, a locking mechanism is arranged at the bottom of the pressure box, a plurality of support columns are slidably installed on the top wall of the pressure box, a pressure plate is fixedly installed on the top of the support columns, a first spring is sleeved on the outer side of the support column, one end of the first spring is fixedly connected to the pressure plate, and the other end of the first spring is fixedly connected to the top side of the pressure box, wherein two symmetrical bottom ends of the support columns are symmetrically fixedly installed with connecting shafts, a bottom plate is fixedly installed on the inner wall of the pressure box, a guide rod is rotatably installed on the bottom plate, two spiral guide grooves are symmetrically provided on the guide rod, the relative inner sides of the two connecting shafts are respectively placed in the corresponding spiral guide grooves, a half gear is fixedly installed on the bottom end of the guide rod, a rack is symmetrically slidably connected to the inner wall of the pressure box, the half gear is meshed with the rack, the relative outer sides of the two racks are fixedly connected with a second spring, and the other end of the second spring is fixedly connected to the inner wall of the pressure box.

[0007] Preferably, the locking mechanism comprises two clamping plates fixedly mounted on the bottom side of the clamp, a plurality of bolts are rotatably mounted on the clamping plates, and nuts are threadedly connected to the bolts.

[0008] Preferably, a gasket is slidably mounted on the bolt, and the gasket is located between the nut and the clamping plate.

[0009] Preferably, a ball is rotatably mounted on one end of the connecting shaft close to the guide rod, and the ball is adapted to the spiral guide groove.

[0010] Preferably, a limiting rod is fixedly mounted on the outer side of the rack, and a limiting groove which is slidably connected to the limiting rod is provided on the inner wall of the pressure box.

[0011] Preferably, a limiting ring is fixedly installed on the bottom end of the support column.

[0012] Preferably, a plurality of protrusions are fixedly mounted on the inner wall of the clamp.

[0013] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] In the utility model, when the connecting shaft pressed downward by the accumulated snow slides in the spiral guide groove, the guide rod and the half gear rotate. When the half gear rotates, it drives the rack to move through the meshing transmission. The rack resets and drives the snow on the clamp and the pressure box to fall off, thereby reducing the influence of the accumulated snow on the clamp and the pressure box, reducing the possibility of the cable loosening due to the accumulated snow, and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the pressure plate, support column and connecting shaft of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the bolt and nut of the utility model;

[0020] Figure 5 It is a side view of the pressure box of the utility model.

[0021] Figure numerals: 1. clamp; 2. pressure box; 3. support column; 4. pressure plate; 5. first spring; 6. connecting shaft; 7. bottom plate; 8. guide rod; 9. spiral guide groove; 10. half gear; 11. rack; 12. second spring; 13. limit ring; 14. rolling ball; 15. limit rod; 16. limit groove; 17. protrusion; 18. splint; 19. bolt; 20. nut; 21. gasket. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model is further described below in conjunction with embodiments.

[0024] Example: Refer to Figures 1 to 5A wire clamp for electric power engineering comprises a clamp 1, a pressure box 2 is fixedly installed on the top of the clamp 1, a locking mechanism is arranged at the bottom of the pressure box 2, a plurality of support columns 3 are slidably installed on the top wall of the pressure box 2, a pressure plate 4 is fixedly installed on the top of the support columns 3, a first spring 5 is sleeved on the outer side of the support columns 3, one end of the first spring 5 is fixedly connected to the pressure plate 4, and the other end of the first spring 5 is fixedly connected to the top side of the pressure box 2, wherein two symmetrical support columns 3 are symmetrically fixedly installed with connecting shafts 6 at the bottom ends, a bottom plate 7 is fixedly installed on the inner wall of the pressure box 2, a guide rod 8 is rotatably installed on the bottom plate 7, and two spirals are symmetrically provided on the guide rod 8 Guide groove 9, the relative inner sides of the two connecting shafts 6 are respectively placed in the corresponding spiral guide groove 9, a half gear 10 is fixedly installed at the bottom end of the guide rod 8, a rack 11 is symmetrically slidably connected to the inner wall of the pressure box 2, the half gear 10 is meshed with the rack 11, and the relative outer sides of the two racks 11 are fixedly connected with a second spring 12, and the other end of the second spring 12 is fixedly connected to the inner wall of the pressure box 2; when using this device, the cable is locked in the clamp 1 through the locking mechanism, and in snowy weather, snowflakes fall on the surface of the pressure box 2 and the pressure plate 4. As the snow on the surface of the pressure plate 4 increases, the pressure plate 4 and the support column 3 move to the pressure box 2 under the action of gravity. When the support column 3 moves downward, the first spring 5 is compressed, and the support column 3 moves downward, driving the connecting shaft 6 to slide in the spiral guide groove 9. When the connecting shaft 6 slides in the spiral guide groove 9, the guide rod 8 and the half gear 10 rotate. When the half gear 10 rotates, it drives the rack 11 on one side to slide through the meshing connection, and the second spring 12 on this side is stretched. When the half gear 10 rotates 180°, it is no longer meshed with the rack 11 on this side. The second spring 12 on this side contracts and drives the rack 11 to reset. When the rack 11 resets, it drives the clamp 1 and the pressure box 2 to shake, thereby shaking off the snow on the clamp 1 and the pressure box 2, and rotating to the half gear on the other side. 10 continues to drive the rack 11 on the other side to slide through the meshing transmission, and repeats the process of shaking off the snow on the clamp 1 and the pressure box 2 when the second spring 12 contracts and drives the rack 11 to slide. After shaking off the snow twice, under the action of the elastic force of the first spring 5, the pressure plate 4 and the support column 3 move upward. As the connecting shaft 6 at the bottom end of the support column 3 moves upward, the guide rod 8 rotates in the opposite direction and gradually returns to its original state, and the rack 11 is reset to drive the snow on the clamp 1 and the pressure box 2 to be shaken off, thereby reducing the influence of the snow on the clamp 1 and the pressure box 2, reducing the possibility of the cable loosening due to snow accumulation, and extending the service life of the device.

[0025] Specifically, the locking mechanism includes two clamps 18 fixedly mounted on the bottom side of the clamp 1, and multiple bolts 19 are rotatably mounted on the clamps 18, and nuts 20 are threadedly connected to the bolts 19; when in use, the cable is passed through the clamp 1, and then the nuts 20 are tightened on the bolts 19 to fix the cable.

[0026] Furthermore, a gasket 21 is slidably installed on the bolt 19, and the gasket 21 is located between the nut 20 and the clamping plate 18; when the nut 20 is tightened on the bolt 19, the nut 20 presses the gasket 21 on the clamping plate 18, and the gasket 21 increases the friction between the nut 20 and the clamping plate 18, thereby preventing the nut 20 from loosening from the bolt 19.

[0027] Furthermore, a ball 14 is rotatably installed at one end of the connecting shaft 6 close to the guide rod 8, and the ball 14 is adapted to the spiral guide groove 9; when the connecting shaft 6 moves downward, the ball 14 slides in the spiral guide groove 9, and the rolling friction between the ball 14 and the spiral guide groove 9 replaces the sliding friction between the connecting shaft 6 and the spiral guide groove 9, thereby avoiding jamming between the connecting shaft 6 and the spiral guide groove 9.

[0028] Furthermore, a limiting rod 15 is fixedly installed on the outer side of the rack 11, and a limiting groove 16 is opened on the inner wall of the pressure box 2 to be limited and slidably connected to the limiting rod 15; the rack 11 is slidably connected to the pressure box 2 through the limiting rod 15 and the limiting groove 16, and the limiting rod 15 and the limiting groove 16 can prevent the rack 11 from moving up and down in the pressure box 2.

[0029] Furthermore, a limiting ring 13 is fixedly installed at the bottom end of the support column 3 ; the limiting ring 13 prevents the support column 3 from being separated from the pressure box 2 when sliding upward under the action of the first spring 5 .

[0030] Furthermore, a plurality of protrusions 17 are fixedly mounted on the inner wall of the clamp 1 ; the plurality of protrusions 17 increase the friction between the cable and the inner wall of the clamp 1 , making the cable more firmly and stably held in the clamp 1 .

[0031] The working principle of the device is as follows: when using the device, pass the cable through the clamp 1, and then tighten the nut 20 on the bolt 19 to fix the cable. When it snows, snowflakes fall on the surface of the pressure box 2 and the pressure plate 4. As the snow on the surface of the pressure plate 4 increases, the pressure plate 4 and the support column 3 move downward under the action of gravity. At this time, the first spring 5 is compressed, and the support column 3 drives the connecting shaft 6 to slide in the spiral guide groove 9 when it moves downward. When the connecting shaft 6 slides in the spiral guide groove 9, the guide rod 8 and the half gear 10 rotate. When the half gear 10 rotates, it drives the rack 11 on one side to slide through the meshing connection, and the second spring 12 on this side is stretched. When the half gear 10 rotates 180°, it is no longer meshed with the rack 11 on this side, and the second spring 12 on this side contracts and drives the rack 11 When the rack 11 is reset, it drives the clamp 1 and the pressure box 2 to shake, and then shakes off the snow on the clamp 1 and the pressure box 2, and the half gear 10 rotated to the other side continues to drive the rack 11 on the other side to slide through the meshing transmission, and repeats the process of shaking off the snow on the clamp 1 and the pressure box 2 when the second spring 12 contracts and drives the rack 11 to slide. After shaking off the snow twice, under the action of the elastic force of the first spring 5, the pressure plate 4 and the support column 3 move upward. As the connecting shaft 6 at the bottom end of the support column 3 moves upward, the guide rod 8 rotates in the opposite direction and gradually returns to its original state, and drives the snow on the clamp 1 and the pressure box 2 to shake off by resetting the rack 11, thereby reducing the influence of snow on the clamp 1 and the pressure box 2, reducing the possibility of cable loosening due to snow accumulation, and extending the service life of the device.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wire clamp for electric power engineering, characterized in that: The invention comprises a clamp (1), a pressure box (2) is fixedly installed on the top of the clamp (1), a locking mechanism is arranged on the bottom of the pressure box (2), a plurality of support columns (3) are slidably installed on the top wall of the pressure box (2), a pressure plate (4) is fixedly installed on the top of the support columns (3), a first spring (5) is sleeved on the outer side of the support columns (3), one end of the first spring (5) is fixedly connected to the pressure plate (4), and the other end of the first spring (5) is fixedly connected to the top side of the pressure box (2), wherein two symmetrical bottom ends of the support columns (3) are symmetrically fixedly installed with connecting shafts (6), and the inner wall of the pressure box (2) is provided with a plurality of support columns (3) which are slidably installed on the top wall of the pressure box (2), and a pressure plate (4) is fixedly installed on the top of the support columns (3). A bottom plate (7) is fixedly mounted, a guide rod (8) is rotatably mounted on the bottom plate (7), two spiral guide grooves (9) are symmetrically provided on the guide rod (8), the opposite inner sides of the two connecting shafts (6) are respectively placed in the corresponding spiral guide grooves (9), a half gear (10) is fixedly mounted on the bottom end of the guide rod (8), a rack (11) is symmetrically slidably connected to the inner wall of the pressure box (2), the half gear (10) is meshed with the rack (11), the opposite outer sides of the two racks (11) are fixedly connected to a second spring (12), the other end of the second spring (12) is fixedly connected to the inner wall of the pressure box (2).

2. A wire clamp for electric power engineering according to claim 1, characterized in that: The locking mechanism comprises two clamping plates (18) fixedly mounted on the bottom side of the clamp (1), a plurality of bolts (19) being rotatably mounted on the clamping plates (18), and nuts (20) being threadedly connected to the bolts (19).

3. A wire clamp for electric power engineering according to claim 2, characterized in that: A gasket (21) is slidably mounted on the bolt (19), and the gasket (21) is located between the nut (20) and the clamping plate (18).

4. The wire clamp for electric power engineering according to claim 1, characterized in that: A rolling ball (14) is rotatably mounted on one end of the connecting shaft (6) close to the guide rod (8), and the rolling ball (14) is adapted to the spiral guide groove (9).

5. The wire clamp for electric power engineering according to claim 1, characterized in that: A limiting rod (15) is fixedly mounted on the outer side of the rack (11), and a limiting groove (16) is provided on the inner wall of the pressure box (2) and is slidably connected to the limiting rod (15).

6. The wire clamp for electric power engineering according to claim 1, characterized in that: A limiting ring (13) is fixedly mounted on the bottom end of the support column (3).

7. The wire clamp for electric power engineering according to claim 1, characterized in that: A plurality of protrusions (17) are fixedly mounted on the inner wall of the clamp (1).

Images