A locking clamp for an interphase spacer insulator

Abstract

The utility model provides a kind of locking wire clamp for phase-to-phase spacer insulator, it is related to power transmission and transformation technical field, including upper arc seat, the bottom of upper arc seat is equipped with lower arc seat, connecting structure is arranged between upper arc seat and lower arc seat, the both sides of upper arc seat are equipped with locking structure, the top of lower arc seat is equipped with fixed wire clamp, the middle part of upper arc seat is equipped with movable wire clamp, the side of fixed wire clamp and movable wire clamp mutually close is equipped with elastic structure.The utility model is cooperated by upper arc seat, lower arc seat, fixed wire clamp and movable wire clamp, according to the specification of cable, the spacing between fixed wire clamp and movable wire clamp is adjusted, after adjustment is completed, cable is placed between fixed wire clamp and movable wire clamp, the problem that the application range of existing wire clamp is limited is solved, and the universality of the locking wire clamp is improved.

Description

Technical Field

[0001] This utility model relates to the field of power transmission and transformation technology, specifically to a locking clamp for phase-to-phase spacer bar insulators. Background Technology

[0002] In the field of power transmission, with the continuous development and upgrading of power grid construction, the requirements for the safe and stable operation of transmission lines are becoming increasingly stringent. As the main power transmission lines in some foreign countries, the stability of 420kV transmission lines is crucial to the reliability of the entire power supply system. Composite phase-to-phase spacer insulators play a vital role in 420kV transmission lines. Installed between two phase conductors, they not only effectively control the distance between the two phase conductors, achieving phase-to-phase insulation, but also provide support and connection for the conductors. They exhibit excellent performance in suppressing conductor galloping, preventing icing jumps, and preventing wind deflection, thus greatly ensuring the safe operation of overhead transmission lines and have been widely used in transmission lines.

[0003] In existing technologies, various conductor specifications are used in actual power transmission lines depending on factors such as transmission capacity and distance. However, some existing clamps are only suitable for conductors of specific specifications. When it is necessary to replace or install conductors of different specifications, it is necessary to replace them with matching clamps. Therefore, workers need to carry cables of different sizes to tighten the clamps, which undoubtedly increases construction costs and time costs, and is not conducive to the efficient implementation of power projects.

[0004] This utility model proposes a locking clamp for phase-to-phase spacer bar insulators to solve the problem that some existing clamps are only applicable to conductors of specific specifications, thus limiting their applicability. Utility Model Content

[0005] In order to overcome the problem that some existing wire clamps in the background technology can only be used for wires of specific specifications, thus limiting their applicability.

[0006] Based on the above technical concept, the technical solution adopted by this utility model is as follows:

[0007] A locking clamp for a phase-to-phase spacer bar insulator includes an upper arc-shaped base, a lower arc-shaped base installed at the bottom of the upper arc-shaped base, a connecting structure between the upper arc-shaped base and the lower arc-shaped base, locking structures on both sides of the upper arc-shaped base, a fixed clamp on the top of the lower arc-shaped base, and a movable clamp in the middle of the upper arc-shaped base. Both the fixed clamp and the movable clamp have elastic structures on the sides that are close to each other.

[0008] The connecting structure is used to connect the upper arc-shaped seat and the lower arc-shaped seat, and the locking structure is used to lock the connecting structure.

[0009] Further defining the above technical solution, the connection structure includes two sets of connecting blocks, which are respectively fixedly installed at both ends of the top of the lower arc-shaped seat, and connecting grooves are provided at both ends of the bottom of the upper arc-shaped seat for engaging with the connecting blocks.

[0010] Further defining the above technical solution, the locking structure includes two sets of housings, which are respectively fixedly installed on both sides of the upper arc-shaped seat. Movable plates are slidably installed inside both sets of housings. Movable rods are fixedly connected to the side of each set of movable plates away from the upper arc-shaped seat. Pull plates are fixedly installed at the ends of each set of movable rods away from the movable plates. Return springs are sleeved on the outer sides of each set of movable rods, and the return springs are located between the movable plates and the inner walls of the housings. Locking rods are fixedly connected to the ends of each set of movable plates away from the movable rods. Locking grooves are opened on the outer sides of each set of connecting blocks for engaging with the locking rods.

[0011] Further defining the above technical solution, the fixed clamp includes multiple fixing rods, which are connected at equal intervals to the top of the lower arc-shaped base, and a fixing plate is installed on the top of the multiple fixing rods.

[0012] Further defining the above technical solution, the movable clamp includes a screw threadedly connected to the middle of the upper arc-shaped seat. The bottom of the screw is rotatably connected to a movable seat, and the bottom of the movable seat is fixedly connected to a movable clamping plate. A rotating wheel is fixedly installed on the top of the screw. Guide rods are fixedly connected to both ends of the top of the movable seat. The tops of the two sets of guide rods extend out of the upper arc-shaped seat. Guide holes are provided on both sides of the upper arc-shaped seat for cooperating with the guide rods.

[0013] Further defining the above technical solution, the elastic structure includes multiple adjusting springs, which are respectively fixedly connected to the fixed clamping plate and the movable clamping plate on the side where they are close to each other, and each of the multiple adjusting springs has an arc-shaped plate installed on the side away from the fixed clamping plate and the movable clamping plate.

[0014] As a further limitation of the above technical solution, an insulating rubber pad is fixedly connected to the end of the arc plate away from the adjusting spring.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model uses an upper arc-shaped base, a lower arc-shaped base, a fixed wire clamp, and a movable wire clamp in combination. According to the specifications of the cable, the distance between the fixed wire clamp and the movable wire clamp is adjusted. After the adjustment is completed, the cable is placed between the fixed wire clamp and the movable wire clamp. This solves the problem of the limited applicability of existing wire clamps and improves the universality of the locking wire clamp.

[0017] This utility model, through the setting of the locking structure, when the connecting block and the connecting groove are engaged, the locking rod on the locking structure is engaged in the locking groove, thereby enabling the connecting block to be quickly locked by the locking rod, so that the upper arc seat and the lower arc seat can be quickly and firmly connected without the need for additional bolts, making the connection process more convenient.

[0018] This invention utilizes an elastic structure to allow the cable to be placed between insulating rubber pads on the inner side of the arc-shaped plate. Therefore, the cable can undergo slight twisting when icing or moving, avoiding torsional breakage caused by rigid fixing and extending the cable's service life. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a locking clamp for a phase-to-phase spacer bar insulator according to the present invention;

[0021] Figure 2 This utility model relates to a locking clamp for interphase spacer bar insulators. Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 3 This is a top view schematic diagram of a locking clamp for a phase-to-phase spacer bar insulator according to the present invention.

[0023] Among them, 1. Upper arc-shaped seat; 2. Lower arc-shaped seat; 3. Connecting structure; 31. Connecting block; 32. Connecting groove; 4. Locking structure; 41. Housing; 42. Movable plate; 43. Movable rod; 44. Pull plate; 45. Return spring; 46. Locking rod; 47. Locking groove; 5. Fixed wire clamp; 51. Fixed rod; 52. Fixed clamping plate; 6. Movable wire clamp; 61. Screw; 62. Movable seat; 63. Movable clamping plate; 64. Rotary wheel; 65. Guide rod; 66. Guide hole; 7. Elastic structure; 71. Adjusting spring; 72. Arc-shaped plate; 721. Insulating rubber pad. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-3 The present invention will be described in further detail below.

[0025] Example 1: This example provides a locking clamp for phase-to-phase spacer insulators, such as... Figure 1 and Figure 3As shown, this invention solves the problem that some existing wire clamps are only suitable for specific wire specifications, limiting their applicability. It includes an upper arc-shaped base 1, a lower arc-shaped base 2 mounted at the bottom of the upper arc-shaped base 1, a connecting structure 3 between the upper arc-shaped base 1 and the lower arc-shaped base 2, locking structures 4 on both sides of the upper arc-shaped base 1, a fixed wire clamp 5 on the top of the lower arc-shaped base 2, and a movable wire clamp 6 in the middle of the upper arc-shaped base 1. Elastic structures 7 are provided on the sides of the fixed wire clamp 5 and the movable wire clamp 6 that are close to each other. The connecting structure 3 connects the upper arc-shaped base 1 and the lower arc-shaped base 2, and the locking structure 4 locks the connecting structure 3.

[0026] Combination Figure 1 and Figure 2 In an embodiment of this utility model, the connecting structure 3 includes two sets of connecting blocks 31, which are respectively fixedly installed at both ends of the top of the lower arc-shaped seat 2. Both ends of the bottom of the upper arc-shaped seat 1 are provided with connecting grooves 32 for engaging with the connecting blocks 31.

[0027] Combination Figure 1 In an embodiment of this utility model, the fixed wire clamp 5 includes multiple fixed rods 51, which are fixedly connected at equal intervals to the top of the lower arc-shaped base 2, and a fixed clamp plate 52 is fixedly installed on the top of the multiple fixed rods 51.

[0028] Combination Figure 1 and Figure 3 In an embodiment of this utility model, the movable clamp 6 includes a screw 61 threadedly connected to the middle of the upper arc-shaped seat 1. The bottom of the screw 61 is rotatably connected to a movable seat 62. The bottom of the movable seat 62 is fixedly connected to a movable clamping plate 63. A rotating wheel 64 is fixedly installed on the top of the screw 61. Guide rods 65 are fixedly connected to both ends of the top of the movable seat 62. The tops of the two sets of guide rods 65 extend out of the upper arc-shaped seat 1. Guide holes 66 are provided on both sides of the upper arc-shaped seat 1 for cooperating with the guide rods 65.

[0029] In use, the cable is placed on the elastic structure 7 on top of the fixed clamp 52. Then, the operator engages the connecting groove 32 at the bottom of the upper arc-shaped seat 1 with the connecting block 31 at the top of the lower arc-shaped seat 2, so that the upper arc-shaped seat 1 and the lower arc-shaped seat 2 are quickly connected. Then, the rotating wheel 64 is rotated. When the rotating wheel 64 rotates, it drives the screw 61 to rotate. Since the screw 61 is rotatably connected to the movable seat 62, and the movable seat 62 is slidably connected to the guide hole 66 through the guide rod 65, the rotating wheel 64 can drive the movable seat 62 to move downward. When the movable seat 62 moves downward, it drives the movable clamp 63 to move downward, which in turn drives the elastic structure 7 at the bottom of the movable clamp 63 to press on the top of the cable. This makes the locking clamp applicable to cables of different sizes, improving the universality of the locking clamp.

[0030] Example 2: Reference Figure 1 and Figure 2 To address the issue of connection efficiency caused by bolts connecting the upper and lower arc-shaped seats, a locking structure 4 is provided. This structure includes two sets of housings 41, which are fixedly installed on both sides of the upper arc-shaped seat 1. Movable plates 42 are slidably installed inside each set of housings 41. Movable rods 43 are fixedly connected to the side of each set of movable plates 42 facing away from the upper arc-shaped seat 1. Pull plates 44 are fixedly installed at the ends of each set of movable rods 43 facing away from the movable plates 42. Return springs 45 are sleeved on the outer sides of each set of movable rods 43, and the return springs 45 are located between the inner walls of the movable plates 42 and the housings 41. Locking rods 46 are fixedly connected to the ends of each set of movable plates 42 facing away from the movable rods 43. Locking grooves 47 are provided on the outer sides of each set of connecting blocks 31 for engaging with the locking rods 46.

[0031] When it is necessary to separate the upper arc-shaped seat 1 and the lower arc-shaped seat 2, the operator holds the pull plate 44 with both hands and pulls the pull plate 44 outward to move the movable rod 43. When the movable rod 43 moves, it moves the movable plate 42 outward and compresses the return spring 45. At the same time, the movable plate 42 moves and moves the locking rod 46 outward until the locking rod 46 separates from the locking groove 47, releasing the fixing effect of the locking rod 46 on the connecting block 31. At this time, pulling the pull plate 44 upward can move the upper arc-shaped seat 1 and the lower arc-shaped seat 2. The seat 1 moves upward, thereby separating the connecting groove 32 from the connecting block 31, so that the upper arc seat 1 can be removed from the top of the lower arc seat 2. When the upper arc seat 1 and the lower arc seat 2 are reconnected, the pull plate 44 is released. Under the elastic force of the return spring 45, the movable plate 42 is reset and drives the locking rod 46 to engage in the corresponding locking groove 47, so that the connecting block 31 and the connecting groove 32 are more securely connected, thereby enabling the upper arc seat 1 and the lower arc seat 2 to be quickly and securely connected.

[0032] Example 3: Reference Figure 1 To address the problem that existing cables are typically rigidly fixed and cannot be twisted slightly during icing or movement, thus causing torsional breakage, the elastic structure 7 includes multiple adjusting springs 71, which are respectively fixedly connected to the fixed clamp 52 and the movable clamp 63 on the side where they are close to each other. The side of each adjusting spring 71 away from the fixed clamp 52 and the movable clamp 63 is fixedly fitted with an arc-shaped plate 72.

[0033] Combination Figure 1 In an embodiment of this utility model, an insulating rubber pad 721 is fixedly connected to one end of the arc plate 72 away from the adjusting spring 71.

[0034] During use, the cable is in direct contact with the insulating rubber pad 721. By adjusting the elastic force of the spring 71, the cable can be slightly twisted when covered with ice or moving, avoiding torsional breakage caused by rigid fixation and effectively extending the service life of the cable.

[0035] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments, which is intended to enable those skilled in the art to understand and apply the present invention. However, it should not be assumed that the specific implementation of the present invention is limited to these descriptions.

Claims

1. A locking clamp for phase-to-phase spacer bar insulators, comprising an upper arc-shaped base (1), characterized in that, A lower arc-shaped seat (2) is installed at the bottom of the upper arc-shaped seat (1). A connecting structure (3) is provided between the upper arc-shaped seat (1) and the lower arc-shaped seat (2). Locking structures (4) are provided on both sides of the upper arc-shaped seat (1). A fixed wire clamp (5) is provided at the top of the lower arc-shaped seat (2). A movable wire clamp (6) is provided in the middle of the upper arc-shaped seat (1). An elastic structure (7) is provided on the side where the fixed wire clamp (5) and the movable wire clamp (6) are close to each other. Among them, the connecting structure (3) is used to connect the upper arc-shaped seat (1) and the lower arc-shaped seat (2), and the locking structure (4) is used to lock the connecting structure (3).

2. A locking clamp for a phase-to-phase spacer bar insulator according to claim 1, characterized in that, The connecting structure (3) includes two sets of connecting blocks (31), which are fixedly installed at both ends of the top of the lower arc-shaped seat (2). The two ends of the bottom of the upper arc-shaped seat (1) are provided with connecting grooves (32) for engaging with the connecting blocks (31).

3. A locking clamp for an interphase spacer bar insulator according to claim 2, characterized in that, The locking structure (4) includes two sets of housings (41), which are fixedly installed on both sides of the upper arc-shaped seat (1). Movable plates (42) are slidably installed inside the two sets of housings (41). Movable rods (43) are fixedly connected to the side of the two sets of movable plates (42) away from the upper arc-shaped seat (1). The end of the two sets of movable rods (43) away from the movable plate (42) extends out of the housing (41) and is fixedly installed with a pull plate (44). The outer side of the two sets of movable rods (43) is fitted with a return spring (45), and the return spring (45) is located between the movable plate (42) and the inner wall of the housing (41). The end of the two sets of movable plates (42) away from the movable rod (43) is fixedly connected with a locking rod (46). Locking grooves (47) are opened on the outer side of the two sets of connecting blocks (31) for engaging with the locking rod (46).

4. A locking clamp for a phase-to-phase spacer bar insulator according to claim 1, characterized in that, The fixing clamp (5) includes multiple fixing rods (51), which are connected at equal intervals to the top of the lower arc-shaped seat (2), and a fixing plate (52) is installed on the top of the multiple fixing rods (51).

5. A locking clamp for a phase-to-phase spacer bar insulator according to claim 4, characterized in that, The movable clamp (6) includes a screw (61) threadedly connected to the middle of the upper arc-shaped seat (1). The bottom of the screw (61) is rotatably connected to a movable seat (62). The bottom of the movable seat (62) is fixedly connected to a movable clamp plate (63). A rotating wheel (64) is fixedly installed on the top of the screw (61). Guide rods (65) are fixedly connected to both ends of the top of the movable seat (62). The tops of the two sets of guide rods (65) extend out of the upper arc-shaped seat (1). Guide holes (66) are opened on both sides of the upper arc-shaped seat (1) for cooperating with the guide rods (65).

6. A locking clamp for a phase-to-phase spacer bar insulator according to claim 5, characterized in that, The elastic structure (7) includes multiple adjusting springs (71), which are fixedly connected to the fixed clamping plate (52) and the movable clamping plate (63) on the side close to each other. Each of the multiple adjusting springs (71) has an arc plate (72) installed on the side away from the fixed clamping plate (52) and the movable clamping plate (63).

7. A locking clamp for a phase-to-phase spacer bar insulator according to claim 6, characterized in that, An insulating rubber pad (721) is fixedly connected to one end of the arc plate (72) away from the adjusting spring (71).

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