Cable clamp for power installation
By designing a cable clamp that includes a mounting bracket, a guide roller assembly, an intermediate clamping roller assembly, and a buffer clamping assembly, the problem of cable swaying and wear caused by wind and temperature changes was solved, achieving stable connection and efficient laying.
Patent Information
- Application Number
- CN202520301090.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Traditional cable clamps are prone to cable swaying during the connection process due to wind and temperature changes, which can cause the connection ends to separate. In addition, the small contact surface can lead to friction and wear, affecting the laying efficiency and safety.
A cable clamp comprising a mounting bracket, a front guide roller assembly, an intermediate clamping roller assembly, and a rear guide roller assembly is designed. Combined with a buffer clamping assembly and an elastic connector, it achieves large-area guiding support and elastic tension, preventing cable displacement and wear.
Large-area guide support and elastic tension prevent cable displacement and wear caused by shaking or expansion, thus improving the safety and efficiency of cable laying.
Smart Images
Figure CN223871930U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power construction technology, and in particular relates to a cable clamp for power installation. Background Technology
[0002] Power engineering construction refers to the process of installing, maintaining, and constructing power equipment and power systems in the power sector. The proportion of cables in power lines is gradually increasing. Power cables are cable products used to transmit and distribute high-power electrical energy in the main lines of a power system.
[0003] During long-distance cable laying, connections are sometimes required. To reduce the difficulty of manual cable connection, cable clamps are generally used to pre-fix the cable connection points. By clamping and supporting the cable, cable clamps can effectively fix and protect the cable and prevent it from loosening or moving; at the same time, cable clamps can generate a strong clamping force and transfer it to the cable shell, providing stability and safety support for the cable.
[0004] In practical power system applications, when connecting cables, it is necessary to manually pull the two ends of the cable to align them, and then use cable clamps to fix the cable connection components. Traditional cable clamps have a relatively simple structure. Cables may sway or expand due to wind and temperature changes, causing displacement between the cable and the clamp, resulting in the two ends of the cable separating. It is then necessary to manually pull the two ends of the cable again to align them, which is cumbersome and inconvenient, affecting the efficiency of cable laying. In addition, the contact surface between the existing clamps and the cable is small. The cable swaying will repeatedly rub against the clamping point. Over time, this friction will wear down the outer sheath of the cable, leading to a short circuit. Therefore, there is an urgent need to design a cable clamp for power installation to solve the above problems. Utility Model Content
[0005] This utility model provides a cable clamp for power installation with a reasonable structural design to solve the technical problems existing in the prior art. This utility model can stably clamp cables and provide large-area guiding support for cables. It can load redundant parts of the cable, preventing displacement between the cable and the clamp due to shaking or expansion, thus ensuring high safety.
[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows: A cable clamp for power installation includes a mounting bracket, on which a front guide roller assembly, an intermediate clamping roller assembly, a rear guide roller assembly, and a buffer clamping assembly are sequentially mounted; the buffer clamping assembly includes a first clamping mechanism fixedly connected to the mounting bracket for clamping cables; two sets of first guide plates are arranged oppositely on one side of the first clamping mechanism, and two sets of second guide plates are arranged oppositely on the other side; buffer swing arms are pivotally connected between the two sets of first guide plates and between the two sets of second guide plates, and the two sets of buffer swing arms are distributed in an inverted V-shape; an elastic connector is pivotally connected between each buffer swing arm and the mounting bracket; and a second clamping mechanism is mounted on each buffer swing arm.
[0007] The advantages and positive effects of this utility model are as follows: This utility model provides a cable clamp for power installation. Through the arrangement of the front guide roller assembly, the middle clamping roller assembly, and the rear guide roller assembly, a large-area guiding and supporting contact between the cable clamp and the cable can be achieved, thereby avoiding damage caused by repeated friction between the cable and the cable clamp when the cable shakes due to external forces. Through the arrangement of the buffer clamping assembly, the redundant part of the cable can be loaded between the first clamping mechanism and the two second clamping mechanisms. With the arrangement of the buffer swing arm and the elastic connector that pivotally connects the buffer swing arm to the mounting bracket, the cable can maintain elastic tension when the cable shakes due to wind force, and can adapt to the expansion and contraction of the cable due to temperature changes. This avoids the cable from displacing between the clamp and the cable due to shaking or expansion and contraction, which would cause the connection end to separate. It has strong safety and improves the cable laying efficiency.
[0008] Preferably, a first arc-shaped groove is provided on each of the first guide plates, and a second arc-shaped groove is provided on each of the second guide plates. The first guide plates and second guide plates located on the same side are symmetrically arranged. A sliding pin is installed on each buffer swing arm, and the sliding pin slides through the corresponding arc-shaped groove.
[0009] Preferably, the first clamping mechanism includes a clamping support fixedly attached to the mounting bracket, a wire-passing groove is formed on the clamping support, an arc-shaped wire-clamping claw is provided in the wire-passing groove, and an adjusting screw screwed onto the clamping support, the inner end of the adjusting screw extending into the wire-passing groove and rotatably connected to the wire-clamping claw.
[0010] Preferably, the second clamping mechanism includes an upper clamping block and a lower clamping block connected by bolts, and arc-shaped grooves are provided on the mating surfaces of the upper clamping block and the lower clamping block.
[0011] Preferably, the intermediate clamping wheel assembly includes a clamping wheel mounting base fixedly attached to a mounting bracket, a lifting wheel seat slidably passing through the clamping wheel mounting base, a transversely arranged spindle fixedly attached to the clamping wheel mounting base, an adjusting eccentric wheel rotatably connected to the spindle and located below and in close contact with the lifting wheel seat, and a locking knob for locking the adjusting eccentric wheel and the spindle through the adjusting eccentric wheel; multiple sets of longitudinally adjustable upper clamping wheels are mounted on the clamping wheel mounting base, and multiple sets of transversely arranged lower clamping wheels are rotatably connected to the lifting wheel seat; each upper clamping wheel is located above the corresponding two sets of lower clamping wheels.
[0012] Preferably, the front guide roller assembly includes a front guide roller seat fixedly attached to the inlet end of the mounting bracket, a transversely arranged front guide roller rotatably connected to the front guide roller seat, and two sets of front vertical guide rollers rotatably connected to and arranged in parallel on the mounting bracket, the two sets of front vertical guide rollers being adjacent to the intermediate clamping roller assembly.
[0013] Preferably, the rear guide roller assembly includes a rear guide roller seat fixed to a mounting bracket, two sets of rear transverse guide rollers rotatably connected to the rear guide roller seat and distributed vertically, and two sets of rear vertical guide rollers rotatably connected to and arranged in parallel on the mounting bracket, with the two sets of rear vertical guide rollers adjacent to the buffer clamping assembly. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0015] Figure 2 This is a three-dimensional structural diagram of the buffer clamping component in this utility model;
[0016] Figure 3 This is a three-dimensional structural diagram of part of the present invention;
[0017] Figure 4 This is a three-dimensional structural diagram of the intermediate clamping wheel assembly in this utility model.
[0018] In the diagram: 1. Front guide roller assembly; 1-1. Front transverse guide roller; 1-2. Front guide roller seat; 1-3. Front vertical guide roller; 2. Intermediate clamping roller assembly; 2-1. Adjustable eccentric wheel; 2-2. Lifting wheel seat; 2-3. Clamping roller mounting seat; 2-4. Wheel seat adjusting rod; 2-5. Mounting seat plate; 2-6. Adjustable clamping roller seat; 2-7. Upper clamping roller; 2-8. Lower clamping roller; 3. Rear guide roller assembly; 3-1. Rear transverse guide roller; 3-2. Rear guide roller seat; 3-3. 4. Rear vertical guide roller; 4. Buffer clamping assembly; 4-1. Wire guide groove; 4-2. Clamping support; 4-3. Wire clamping claw; 4-4. Adjusting screw; 4-5. First guide plate; 4-6. First arc groove; 4-7. Second arc groove; 4-8. Upper clamping block; 4-9. Lower clamping block; 4-10. Sliding pin; 4-11. Buffer swing arm; 4-12. Elastic connector; 4-13. Pivot shaft; 4-14. Second guide plate; 5. Mounting bracket. Detailed Implementation
[0019] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided in detail:
[0020] Please see Figure 1 The cable clamp for power installation of this utility model includes a mounting bracket 5, on which a front guide roller assembly 1, an intermediate clamping roller assembly 2, a rear guide roller assembly 3 and a buffer clamping assembly 4 are sequentially mounted.
[0021] See further Figure 2 The aforementioned buffer clamping assembly 4 includes a first clamping mechanism fixedly mounted on the mounting bracket 5 for clamping cables. Two sets of opposing first guide plates 4-5 are provided on one side of the first clamping mechanism, and two sets of opposing second guide plates 4-14 are provided on the other side. Buffer swing arms 4-11 are pivotally connected between the two sets of first guide plates 4-5 and between the two sets of second guide plates 4-14. The two sets of buffer swing arms 4-11 are arranged in an inverted V-shape. An elastic connector 4-12 is pivotally connected between each buffer swing arm 4-11 and the mounting bracket 5. The elastic connector 4-12 includes a damper whose two ends are pivotally connected to the buffer swing arm 4-11 and the mounting bracket 5 respectively, and a spring passing through the damper. A second clamping mechanism is mounted on each buffer swing arm 4-11.
[0022] Furthermore, each of the first guide plates 4-5 has a first arc-shaped groove 4-6, and each of the second guide plates 4-14 has a second arc-shaped groove 4-7. The first guide plates 4-5 and the second guide plates 4-14 on the same side are symmetrically arranged. Each buffer arm 4-11 is equipped with a sliding pin 4-10, which slides through the corresponding arc-shaped groove. Furthermore, each buffer arm 4-11 is fixedly connected with two sets of sliding pins 4-10 arranged coaxially; each buffer arm 4-11 is fixedly connected with a pivot shaft 4-13, which is pivotally connected to the corresponding guide plate.
[0023] like Figure 2 As shown, the first clamping mechanism includes a clamping support 4-2 fixedly attached to the mounting bracket 5. A wire-passing groove 4-1 is formed on the clamping support 4-2, and the wire-passing groove 4-1 is an arc-shaped groove communicating with its side. An arc-shaped wire-clamping claw 4-3 is provided in the wire-passing groove 4-1. The mechanism also includes an adjusting screw 4-4 screwed onto the clamping support 4-2. The inner end of the adjusting screw 4-4 extends into the wire-passing groove 4-1 and is rotatably connected to the wire-clamping claw 4-3.
[0024] The second clamping mechanism includes an upper clamping block 4-8 and a lower clamping block 4-9 connected by bolts. Arc-shaped grooves are provided on the mating surfaces of the upper clamping block 4-8 and the lower clamping block 4-9, and the two arc-shaped grooves form a slot through which the cable can pass.
[0025] See further Figure 3 The aforementioned front guide roller assembly 1 includes a front guide roller seat 1-2 fixedly connected to the inlet end of the mounting bracket 5, a transversely arranged front transverse guide roller 1-1 rotatably connected to the front guide roller seat 1-2, and two sets of front vertical guide rollers 1-3 rotatably connected to and arranged in parallel on the mounting bracket 5, with the two sets of front vertical guide rollers 1-3 adjacent to the intermediate clamping roller assembly 2.
[0026] like Figure 3 As shown, the rear guide roller assembly 3 includes a rear guide roller seat 3-2 fixedly attached to the mounting bracket 5, two sets of rear transverse guide rollers 3-1 rotatably connected to the rear guide roller seat 3-2 in an up-down distribution, and two sets of rear vertical guide rollers 3-3 rotatably connected to and arranged in parallel on the mounting bracket 5, with the two sets of rear vertical guide rollers 3-3 adjacent to the buffer clamping assembly 4.
[0027] like Figure 1 and Figure 3 As shown, two sets of oppositely arranged single ear plates are fixedly connected to the end of the mounting bracket 5, which facilitates the mounting bracket 5 to be pivotally connected to other components or brackets via pins.
[0028] See further Figure 4The aforementioned intermediate clamping wheel assembly 2 includes a clamping wheel mounting base 2-3 fixedly connected to the mounting bracket 5. A lifting wheel seat 2-2 is slidably mounted on the clamping wheel mounting base 2-3. A horizontally arranged spindle is fixedly connected to the clamping wheel mounting base 2-3. An adjusting eccentric wheel 2-1, located below and in close contact with the lifting wheel seat 2-2, is rotatably connected to the spindle. A locking knob for locking the adjusting eccentric wheel 2-1 and the spindle is mounted on the adjusting eccentric wheel 2-1. Multiple sets of upper clamping wheels 2-7 with adjustable longitudinal position are mounted on the clamping wheel mounting base 2-3. Multiple sets of lower clamping wheels 2-8 arranged horizontally side by side are rotatably connected to the lifting wheel seat 2-2. Each upper clamping wheel 2-7 is located above the corresponding two sets of lower clamping wheels 2-8. This arrangement guides the cable and also straightens it, preventing deformed cables from affecting subsequent cable end connections.
[0029] Furthermore, the clamping wheel mounting base 2-3 is provided with multiple sets of longitudinally extending sliding grooves, and adjustable clamping wheel seats 2-6 are slidably inserted in each sliding groove. Each upper clamping wheel 2-7 is rotatably connected to each adjustable clamping wheel seat 2-6. It also includes a mounting plate 2-5 fixed to the clamping wheel mounting base 2-3. Multiple wheel seat adjusting rods 2-4 connected to the multiple sets of adjustable clamping wheel seats 2-6 are screwed onto the mounting plate 2-5. The lower end of the wheel seat adjusting rod 2-4 passes through the slot opened in the corresponding adjustable clamping wheel seat 2-6 and is equipped with a spring pin. A locking nut is screwed onto each wheel seat adjusting rod 2-4.
[0030] Working principle:
[0031] In actual operation, the cable passes through the front guide roller assembly 1, the intermediate clamping roller assembly 2, and the rear guide roller assembly 3 in sequence to guide the cable. At the same time, the intermediate clamping roller assembly 2 can straighten the cable. Then, the cable passes through the second clamping mechanism, the first clamping mechanism, and another second clamping mechanism in sequence. The redundant part of the cable is then loaded between the first clamping mechanism and the two second clamping mechanisms to pre-fix the cable, which facilitates the connection between the end of the cable and the end of another cable. When the cable sways due to wind, the elastic connector 4-12 will deform, thus maintaining the elastic tension of the cable. When the cable expands or contracts due to temperature changes, the swing arm 4-11 will swing to adapt to the expansion and contraction of the cable.
Claims
1. A cable clamp for electrical installation, characterized in that: The system includes a mounting bracket (5), on which a front guide roller assembly (1), an intermediate clamping roller assembly (2), a rear guide roller assembly (3), and a buffer clamping assembly (4) are sequentially mounted. The buffer clamping assembly (4) includes a first clamping mechanism fixed to the mounting bracket (5) for clamping cables. Two sets of first guide plates (4-5) are arranged opposite to each other on one side of the first clamping mechanism, and two sets of second guide plates (4-14) are arranged opposite to each other on the other side. Buffer swing arms (4-11) are pivotally connected between the two sets of first guide plates (4-5) and between the two sets of second guide plates (4-14). The two sets of buffer swing arms (4-11) are arranged in an inverted figure-eight shape. Elastic connectors (4-12) are pivotally connected between each buffer swing arm (4-11) and the mounting bracket (5). A second clamping mechanism is mounted on each buffer swing arm (4-11).
2. The cable clamp for power installation as described in claim 1, characterized in that: in Each first guide plate (4-5) is provided with a first arc-shaped groove (4-6), and each second guide plate (4-14) is provided with a second arc-shaped groove (4-7). The first guide plates (4-5) and the second guide plates (4-14) located on the same side are symmetrically arranged. Each buffer swing arm (4-11) is equipped with a sliding pin (4-10), which slides through the corresponding arc-shaped groove.
3. The cable clamp for power installation as described in claim 1, characterized in that: The first clamping mechanism includes a clamping support (4-2) fixedly attached to the mounting bracket (5), a wire groove (4-1) is provided on the clamping support (4-2), an arc-shaped wire clamping claw (4-3) is provided in the wire groove (4-1), and an adjusting screw (4-4) screwed onto the clamping support (4-2), the inner end of the adjusting screw (4-4) extending into the wire groove (4-1) and rotatably connected to the wire clamping claw (4-3).
4. The cable clamp for power installation as described in claim 1, characterized in that: The second clamping mechanism includes an upper clamping block (4-8) and a lower clamping block (4-9) connected by bolts, and arc-shaped grooves are provided on the mating surfaces of the upper clamping block (4-8) and the lower clamping block (4-9).
5. The cable clamp for power installation as described in claim 1, characterized in that: The intermediate clamping wheel assembly (2) includes a clamping wheel mounting seat (2-3) fixedly attached to a mounting bracket (5), a lifting wheel seat (2-2) slidably passing through the clamping wheel mounting seat (2-3), a horizontally arranged spindle fixedly attached to the clamping wheel mounting seat (2-3), an adjusting eccentric wheel (2-1) rotatably connected to the spindle and located below and in close contact with the lifting wheel seat (2-2), a locking knob for locking the adjusting eccentric wheel (2-1) and the spindle through the adjusting eccentric wheel (2-1); multiple sets of upper clamping wheels (2-7) with adjustable longitudinal position are mounted on the clamping wheel mounting seat (2-3), and multiple sets of lower clamping wheels (2-8) arranged horizontally side by side are rotatably connected to the lifting wheel seat (2-2); each upper clamping wheel (2-7) is located above the corresponding two sets of lower clamping wheels (2-8).
6. The cable clamp for power installation as described in claim 1, characterized in that: The front guide roller assembly (1) includes a front guide roller seat (1-2) fixedly attached to the inlet end of the mounting bracket (5), a front transverse guide roller (1-1) rotatably connected to the front guide roller seat (1-2), and two sets of front vertical guide rollers (1-3) rotatably connected to and arranged in parallel on the mounting bracket (5), with the two sets of front vertical guide rollers (1-3) adjacent to the intermediate clamping roller assembly (2).
7. The cable clamp for power installation as described in claim 1, characterized in that: The rear guide roller assembly (3) includes a rear guide roller seat (3-2) fixed on the mounting bracket (5), two sets of rear transverse guide rollers (3-1) rotatably connected to the rear guide roller seat (3-2) in an up-down distribution, and two sets of rear vertical guide rollers (3-3) rotatably connected to and arranged side by side on the mounting bracket (5), with the two sets of rear vertical guide rollers (3-3) adjacent to the buffer clamping assembly (4).