Distance adjusting wire clamp

Abstract

The utility model discloses a distance adjusting wire clamp, which comprises two groups of fixing clamps and a pair of bite clamps, the number of the fixing clamps is two, the two groups of fixing clamps are connected through a cushion block, the main body of each fixing clamp is a transversely arranged clamp head, one side of each fixing clamp far away from the clamp head is rotatably matched with the bite clamp through a bite shaft, the bite clamp can rotate around the bite shaft to form a bite structure with the clamp head, and the bite clamp is connected with the cushion block. A corner connecting rod of a folding rod structure is rotationally matched with the fixing pincers through a main shaft, the folding angle of the corner connecting rod is an obtuse angle, the two sets of fixing pincers are matched with the two sets of corner connecting rods, and deflection rods of a rod-shaped structure are clamped and fixed to the sides, away from the shaft, of the two sets of corner connecting rods. A straight connecting rod with a notch-shaped longitudinal section is rotationally matched at the break angle of the two groups of corner connecting rods through a first auxiliary shaft, the other end of the straight connecting rod is rotationally matched with the biting clamp through a second auxiliary shaft, a vertical rod with a rod core structure extends downwards below the two groups of fixed clamps, and a supporting rod is connected below the vertical rod; the beneficial effects are that clamping force is guaranteed, and power transmission line separation can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission line distance adjustment tools, and particularly relates to a distance adjustment wire clamp. Background Art

[0002] Conductor splitting is a conductor erection method adopted by ultra-high voltage transmission lines to suppress corona discharge and reduce line reactance. That is, each phase of the conductor is composed of several sub-conductors with smaller diameters. The sub-conductors are spaced at a certain distance and arranged in a symmetric polygon. The spacer damper is the main fitting in the split conductor structure (such as a damping spacer damper with the publication number of CN101882772A); the basic tasks of the spacer damper are: (1) suppressing aeolian vibration; (2) preventing whipping between conductors; (3) suppressing sub-span oscillation; when the transmission line is installed on the spacer damper, the spacing between all transmission lines is not necessarily the same as the required spacing of the spacer damper. At this time, it is necessary to use a wire clamp to clamp and separate or approach the conductors of the transmission line to adjust the spacing between the transmission lines so that they can be installed on the spacer damper with a standard spacing. Most of the existing transmission line clamping methods rely on ordinary pliers for clamping. When clamping some transmission lines with relatively large loads, it is easy for the transmission lines to slip off the pliers due to insufficient clamping force, which is not convenient to use, and even the wire may be damaged due to the collision of the separated transmission line. Content of the Utility Model

[0003] The purpose of the utility model is to provide a distance adjustment wire clamp to solve the problems mentioned in the above background art.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] A distance adjustment wire clamp includes: fixed pliers and biting pliers. The number of the fixed pliers is two groups. The two groups of fixed pliers are connected by a spacer. The main body of the fixed pliers is a horizontally placed plier head. On the side of the fixed pliers away from the plier head, there is a convex part with a convex structure. A biting plier is rotationally matched with the convex part through a biting shaft. The biting plier can rotate around the biting shaft and form a biting structure with the plier head. A corner connecting rod with a folding rod structure is rotationally matched with the fixed pliers by a main shaft. The folding angle of the corner connecting rod is an obtuse angle. The two groups of fixed pliers cooperate with two groups of corner connecting rods in total. On the side of the two groups of corner connecting rods away from the shaft, a deflecting rod with a rod-shaped structure is clamped and fixed. At the folding angle of the two groups of corner connecting rods, a straight connecting rod with a notch-shaped longitudinal section is rotationally matched by a first secondary shaft. The other end of the straight connecting rod is rotationally matched with the biting plier by a second secondary shaft. Below the two groups of fixed pliers, there is a vertical rod with a rod core structure extending downward. A support rod is connected below the vertical rod.

[0006] Furthermore, in order to prevent the transmission line from slipping out of the clamped fixed pliers and biting pliers when the fixed pliers and biting pliers clamp the transmission line, the fixed pliers and the biting pliers are respectively provided with a first biting groove and a second biting groove in the shape of a semi-circular arc notch.

[0007] Further, in order to increase the range of transmission lines applicable to the present utility model, the number of the first clamping grooves and the second clamping grooves is at least two groups respectively and with different radii, and the arc radii between the corresponding upper and lower first clamping grooves and second clamping grooves are the same. The spacer block is provided with a slot having the same contour as the first clamping groove.

[0008] Further, in order to facilitate the hanging of the fixing pliers when clamping the transmission line and prevent the fixing pliers from falling off the transmission line due to slight displacement, a vertical tooth-like structure is provided at one end of the spacer block away from the main shaft to form a hook tooth, and a tooth groove for accommodating the hook tooth is provided on the biting pliers.

[0009] Further, in order to conveniently control the diameter of the support rod within a reasonable range and prevent the support rod from being inconvenient to hold, the two vertical rods on the two fixing pliers are provided with bends close to each other at their bottoms to form a bent portion, and the two vertical rods are connected and fixed to the support rod through the bent portion.

[0010] Further, in order to provide construction safety, the support rod and the deflection rod are both made of insulating rods.

[0011] Further, in order to reduce the weight of the device, a hollow cutout is provided inside the biting pliers to form a weight reduction hole.

[0012] Further, in order to make it more labor-saving during clamping, a torsion spring is externally embedded between the second sub-shaft and the straight connecting rod, and the torsion spring has an elastic tendency to drive the side of the first sub-shaft of the straight connecting rod to deflect towards the vertical rod.

[0013] In summary, the present utility model has the following beneficial effects:

[0014] The clamping force is guaranteed and the transmission line can be prevented from detaching: By setting up the corner connecting rod and the straight connecting rod, based on the lever principle, the corner connecting rod and the straight connecting rod are equivalent to two labor-saving levers. When adjusting the distance while clamping the transmission line, the magnitude of the clamping force can be guaranteed through the above two labor-saving levers, preventing the transmission line from detaching or being damaged due to elastic tremor collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the internal structural schematic diagram of the present utility model;

[0017] Figure 3 is the usage structural schematic diagram of the present utility model;

[0018] In the figure, 1 is a fixed clamp; 2 is a bite clamp; 3 is a spacer block; 4 is a corner connecting rod; 5 is a strut; 6 is a straight connecting rod; 7 is a main shaft; 8 is a bite shaft; 9 is a first auxiliary shaft; 10 is a second auxiliary shaft; 11 is a clamp head; 12 is a vertical rod; 13 is a bent part; 14 is a first bite groove; 15 is a convex part; 21 is a second bite groove; 22 is a tooth groove; 23 is a weight reduction hole; 31 is a hook tooth; 41 is a deflection rod; 99 is a transmission line. Specific embodiments

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Example:

[0021] Please refer to Figures 1-3 , the present invention provides a technical solution:

[0022] Brief description of the use process:

[0023] A distance-adjustable wire clamp includes: a fixed clamp 1 and a bite clamp 2. The number of the fixed clamps 1 is two groups. The two groups of fixed clamps 1 are connected by a spacer block 3. The main body of the fixed clamp 1 is a horizontally placed clamp head 11. On one side of the fixed clamp 1 away from the clamp head 11, there is a convex part 15 with an outward convex structure. A bite clamp 2 is rotatably fitted on the convex part 15 through a bite shaft 8. The bite clamp 2 can rotate around the bite shaft 8 and form a biting structure with the clamp head 11. A corner connecting rod 4 with a folding rod structure is rotatably fitted on the fixed clamp 1 by using a main shaft 7. The folding angle of the corner connecting rod 4 is an obtuse angle. The two groups of fixed clamps 1 cooperate with two groups of corner connecting rods 4 in total. On one side of the two groups of corner connecting rods 4 away from the shaft 7, a rod-shaped deflection rod 41 is clamped and fixed. At the folding angle of the two groups of corner connecting rods 4, a straight connecting rod 6 with a trough-shaped cross-section is rotatably fitted by using a first auxiliary shaft 9. The other end of the straight connecting rod 6 is rotatably fitted with the bite clamp 2 through a second auxiliary shaft 10. Below the two groups of fixed clamps 1, a vertical rod 12 with a rod core structure extends downward, and a strut 5 is connected below the vertical rod 12.

[0024] The fixed clamp 1 and the bite clamp 2 are respectively provided with a first bite groove 14 and a second bite groove 21 in the shape of a semi-circular trough.

[0025] The number of the first bite groove 14 and the second bite groove 21 is at least two groups respectively and with different radii, and the arc radii between the upper and lower corresponding first bite groove 14 and second bite groove 21 are the same. The spacer block 3 is provided with a slot having the same contour as the first bite groove 14.

[0026] At one end of the spacer block 3 away from the main shaft 7, a vertical tooth-like structure is provided to form a hook tooth 31, and the bite clamp 2 is provided with a tooth groove 22 for accommodating the hook tooth 31.

[0027] On the two vertical rods 12 of the two fixed clamps 1, there are bent portions 13 formed by bending towards each other at their bottom ends, and the two vertical rods 12 are connected and fixed to the support rod 5 through the bent portions 13.

[0028] Both the support rod 5 and the deflection rod 41 are made of insulating rods.

[0029] A hollow cutout to form a weight reduction hole 23 is provided inside the biting clamp 2.

[0030] An outer torsion spring is embedded between the second secondary shaft 10 and the straight link 6, and the torsion spring has an elastic tendency to drive the straight link 6 to deflect towards the vertical rod 12 on the side of the first secondary shaft 9.

[0031] During use, step ① is as Figure 3 shown. First, deflect and separate the lower ends of the support rod 5 and the deflection rod 41. The deflection rod 41 drives the corner link 4 to deflect around the main shaft 7. When the corner link 4 deflects, it drives the straight link 6 to deflect accordingly through the first secondary shaft 9. The straight link 6 drives the biting clamp 2 to deflect around the biting shaft 8, thereby opening the opening between the clamp head 11 and the biting clamp 2.

[0032] In step ②, then hang the clamp head 11 and the hook teeth 31 on the transmission line 99 through the support rod 5. As long as the support rod 5 is not lifted, the hook teeth 31 can be used to prevent the wire from slipping out. Then, use the support rod to embed the transmission line 99 into the first biting groove 14 with its corresponding radius.

[0033] In step ③, then as Figure 3 shown, deflect and approach the lower ends of the support rod 5 and the deflection rod 41. Similarly to the above, the deflection rod 41 will drive the opening between the clamp head 11 and the biting clamp 2 to close. Then, under the action of the first biting groove 14 of the clamp head 11 and the second biting groove 21 of the biting clamp 2, the transmission line 99 is tightly clamped. Then, the support rod 5 and the deflection rod 41 can be pinched together to separate the transmission line 99 to a reasonable distance, and then a spacer is installed on the transmission line 99 with the separated distance.

[0034] After the spacer is installed in step ④, repeat steps ①②③ to perform the distance adjustment and spacing operation for the next group of transmission lines 99, and then adjust the distances of all the transmission lines 99 and install them on the spacers.

[0035] Through the lever principle, the corner link 4 and the straight link 6 are equivalent to two labor-saving levers. When clamping the transmission line 99 for distance adjustment, the magnitude of the clamping force can be ensured through the above two labor-saving levers, preventing the transmission line 99 from detaching or being damaged due to elastic tremor collision.

[0036] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A distance-adjustable wire clamp, comprising: Fixed clamp (1), biting clamp (2), characterized in that: the number of the fixed clamps (1) is two groups, the two groups of fixed clamps (1) are connected by a cushion block (3), the main body of the fixed clamp (1) is a horizontally placed clamp head (11), and on one side of the fixed clamp (1) far from the clamp head (11), there is a convex part (15) with a convex structure. A biting clamp (2) is rotationally fitted on the convex part (15) through a biting shaft (8). The biting clamp (2) can rotate around the biting shaft (8) to form a biting structure with the clamp head (11). A corner connecting rod (4) with a folding rod structure is rotationally fitted on the fixed clamp (1) through a main shaft (7). The folding angle of the corner connecting rod (4) is an obtuse angle. The two groups of fixed clamps (1) cooperate with two groups of corner connecting rods (4) in total. A deflecting rod (41) with a rod-shaped structure is clamped and fixed on one side of the two groups of corner connecting rods (4) far from the shaft (7). At the folding angle of the two groups of corner connecting rods (4), a straight connecting rod (6) with a notch-shaped longitudinal section is rotationally fitted through a first auxiliary shaft (9). The other end of the straight connecting rod (6) is rotationally fitted with the biting clamp (2) through a second auxiliary shaft (10). Vertical rods (12) with a rod core structure extend downward below the two groups of fixed clamps (1), and a support rod (5) is connected below the vertical rods (12).

2. The adjustable distance wire clamp according to claim 1, characterized in that: The fixed clamp (1) and the biting clamp (2) are respectively provided with a first biting groove (14) and a second biting groove (21) in a semi-circular notch shape.

3. The adjustable distance wire clamp according to claim 2, characterized in that: The number of the first biting groove (14) and the second biting groove (21) is at least two groups respectively and with different radii, and the arc radii between the upper and lower corresponding first biting groove (14) and second biting groove (21) are the same. The cushion block (3) is provided with a notch consistent with the contour of the first biting groove (14).

4. The adjustable distance wire clamp according to claim 1, characterized in that: The cushion block (3) is provided with a vertical tooth-like structure to form a hook tooth (31) at one end far from the main shaft (7), and the biting clamp (2) is provided with a tooth groove (22) for accommodating the hook tooth (31).

5. The adjustable distance wire clamp according to claim 1, characterized in that: The two vertical rods (12) on the two groups of fixed clamps (1) are bent towards each other at their bottom ends to form a bent part (13), and the two vertical rods ( 6. The adjustable distance wire clamp according to claim 1, characterized in that: ​ 7. The adjustable distance wire clamp according to claim 1, wherein: ​ 8. The adjustable distance wire clamp according to claim 1, characterized in that: ​

Images