Suspension clamp for power supply line

Abstract

The present invention relates to the field of suspension clamps, and in particular to a suspension clamp for power lines, comprising a suspension frame, a slider, a fixed clamp and a movable clamp, wherein a slide groove is provided at the bottom of the suspension frame, wherein two sliders are slidably arranged in the slide groove, each of the sliders is provided with a fixed clamp, each of the fixed clamps is rotatably connected with a movable clamp, and the fixed clamp and the movable clamp form a circular ring-shaped clamp; a cable is placed between the fixed clamp and the movable clamp, and then the fixed clamp and the movable clamp are fixed by bolts to clamp the cable. The present invention allows two movable clamps to flip upward synchronously by lifting a connecting rod upward, without the need to position and install them one by one, and then the connecting rod is hung on a hook, so that workers can put cables into the fixed clamp or inspect the inner walls of the fixed clamp and the movable clamp.

Description

Technical Field

[0001] The invention relates to the field of suspension wire clamps, and in particular to a suspension wire clamp for a power supply line. Background Art

[0002] The suspension wire clamp is a hardware fixture that suspends the conductor or ground wire to the suspension insulator string or hardware fixture string. Due to the influence of external wind force, the clamping position of the suspension wire clamp and the cable are constantly shaking and rubbing, resulting in large losses and requiring periodic inspections.

[0003] For example, Chinese patent CN219351239U discloses a double-clip suspension clamp with adjustable line spacing, which not only improves the fixing effect by means of double-clip, but also adjusts the spacing between the two clips by sliding the two clips in the slide groove. However, it has the following defects:

[0004] 1. When using a double-clip suspension clamp, the cable needs to be clamped into the clamp twice, and the cable clamping correction needs to be performed twice, which is cumbersome to operate;

[0005] 2. When inspecting the suspension wire clamp, since the cable clamping position is blocked, it is usually necessary to disassemble the wire clamp for inspection. The process is relatively cumbersome and the degree of loss of the suspension wire clamp cannot be directly observed. Summary of the invention

[0006] In order to overcome the disadvantage that the existing double-clamp suspension clamp is complicated to install and disassemble during inspection, the present invention provides a suspension clamp for a power supply line.

[0007] Technical solution: A suspension wire clamp for a power supply line, comprising a hanging frame, a slider, a fixed clamping plate and a movable clamping plate, wherein a sliding groove is provided at the bottom of the hanging frame, and two sliders are slidably arranged in the sliding groove, each of the sliders is equipped with a fixed clamping plate, and each of the fixed clamping plate is rotatably connected to a movable clamping plate, and the fixed clamping plate and the movable clamping plate form a circular ring-shaped wire clamp; the cable is placed between the fixed clamping plate and the movable clamping plate, and then the fixed clamping plate and the movable clamping plate are fixed by bolts to clamp the cable; it also includes: a connecting rod, one connecting rod is commonly connected between the two fixed clamping plates, and another connecting rod is commonly connected between the two movable clamping plates, and by toggling the connecting rod between the two movable clamping plates, the two movable clamping plates are synchronously driven to flip together, so that the two groups of fixed clamping plates and the movable clamping plates can synchronously clamp the cables.

[0008] As an improvement on the above solution, a hook is rotatably connected to the side of the suspension frame, and a torsion spring is connected between the suspension frame and the hook. Workers manually flip the hook down to hang the connecting rod between the two movable clamping plates. There is no need for workers to lift the connecting rod all the time to keep the movable clamping plate in a flipped-up state, which makes it convenient for workers to put cables into the fixed clamping plate or inspect the inner walls of the fixed clamping plate and the movable clamping plate.

[0009] As an improvement on the above scheme, two telescopic spring rods are installed on the inner arc surface of each fixed clamping plate and each movable clamping plate, and an inner clamping plate is commonly installed on the telescopic ends of each two telescopic spring rods. The two inner clamps in each annular wire clamp are symmetrically arranged, and the inner clamping plates replace the fixed clamping plates and the movable clamping plates to clamp the cables. A wedge block is installed on the outer arc surface of each inner clamp, and a connecting arm is installed on the four corners of the bottom of the suspension frame, and each connecting arm is installed with a top plate, and each top plate is in contact with the inclined surface of a wedge block.

[0010] As an improvement of the above solution, when the inner clamping plate is in a normal clamping state for the cable, the position where the top plate contacts the inclined surface of the wedge block is located in the middle of the inclined surface of the wedge block.

[0011] As an improvement of the above solution, the inner curved surface of the inner clamping plate for clamping the cable is provided with a wear-resistant layer.

[0012] As an improvement of the above solution, the connecting rod is a spring telescopic rod composed of a telescopic rod and a fixed rod, a groove is opened on one side of the fixed rod, the telescopic rod slides in the groove of the fixed rod, and a spring is installed between the telescopic rod and the groove of the fixed rod.

[0013] As an improvement of the above solution, when the inner clamping plate is in a normal clamping state for the cable, the outer surface of the rod body portion of the telescopic rod hidden in the groove of the fixed rod is provided with a red coating.

[0014] As an improvement of the above scheme, a circular hole 1 is respectively opened on the facing sides of the two fixed clamping plates, and a circular hole 2 is respectively opened on the facing sides of the two movable clamping plates. The two circular holes 1 are used to insert the two ends of one of the connecting rods, and the two circular holes 2 are used to insert the two ends of the other connecting rod.

[0015] As an improvement of the above solution, two telescopic spring beads are installed on each of the telescopic rods, and two through holes are opened on each of the fixed rods. During the process of the telescopic rods contracting into the grooves of the fixed rods, the telescopic spring beads are in a contracted state. When the telescopic spring beads move to the position of the through holes, they automatically pop out to fix the relative positions of the telescopic rods and the fixed rods.

[0016] As an improvement of the above solution, a gap is left between the bottom of the fixed clamping plate and the movable clamping plate that form a circular clamp.

[0017] Beneficial effect: The present invention allows the two movable clamping plates to flip upward synchronously by lifting the connecting rod upward, without the need to position and install them one by one, and then hangs the connecting rod on a hook, making it convenient for workers to put cables into the fixed clamping plate or check the inner walls of the fixed clamping plate and the movable clamping plate.

[0018] In the present invention, when wear occurs between the cable and the inner clamping plate, a gap is generated between the inner clamping plate and the cable and the cable cannot be clamped. At this time, the elastic extension force of the telescopic rod can drive the inclined surface of the wedge block to continue to move along the top plate, so that the inner clamping plate is closer to the cable, ensuring that the inner clamping plate is always in a clamped state for the cable.

[0019] The arrangement of the red-coated rod part hidden in the groove of the fixed rod through the telescopic rod will be exposed when the inner clamping plate and the cable clamping contact position rub against each other, so as to timely alert the inspectors on the ground. In this way, there is no need for the inspectors to climb up specifically for inspection to discover the wear and tear. The inspectors can know the degree of wear between the inner clamping plate and the cable by observing the exposed area of ​​the red-coated rod part on the ground or nearby, thereby realizing rapid transmission of information.

[0020] The telescopic connecting rod can expose the clamping position of the cable for direct observation, and a large gap is formed between the inner arc surface of the inner clamping plate and the cable, which is convenient for personnel to check. In this way, there is no need to remove the fixing bolts of the fixed clamping plate and the movable clamping plate to check the cable clamping position and the wear of the inner clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 What is shown is a schematic diagram of the three-dimensional structure of the suspension wire clamp of the power supply line of the present invention;

[0022] Figure 2 What is shown is a schematic diagram of the combined three-dimensional structure of the slider and the slide groove of the present invention;

[0023] Figure 3 What is shown is a schematic diagram of the combined three-dimensional structure of the fixed clamping plate and the movable clamping plate of the present invention;

[0024] Figure 4 Shown is a schematic diagram of the installation position of the telescopic spring rod of the present invention;

[0025] Figure 5 Shown is a contact state diagram of the wedge block and the top plate of the present invention;

[0026] Figure 6 What is shown is a three-dimensional structural schematic diagram of the connecting rod of the present invention;

[0027] Figure 7 What is shown is the flipping state diagram of the movable clamping plate of the present invention.

[0028] The reference numerals in the figure are as follows: 1-suspension frame, 2-slider, 3-fixed splint, 4-movable splint, 5-connecting rod, 6-hook, 11-telescopic spring rod, 12-inner splint, 13-wedge block, 14-connecting arm, 15-top plate, 101-slide groove, 301-round hole one, 401-round hole two, 501-telescopic rod, 502-fixed rod, 503-telescopic spring bead, 504-through hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] A suspension clamp for a power supply line, such as Figure 1-Figure 3 As shown, it includes a suspension frame 1, a slider 2, a fixed clamping plate 3 and a movable clamping plate 4. The bottom of the suspension frame 1 is provided with a slide groove 101. Two sliders 2 are slidably arranged in the slide groove 101. Each of the sliders 2 is equipped with a fixed clamping plate 3. Each of the fixed clamping plates 3 is rotatably connected to a movable clamping plate 4. The fixed clamping plate 3 and the movable clamping plate 4 form a circular ring-shaped wire clamp.

[0032] Also includes:

[0033] A connecting rod 5 , one connecting rod 5 is commonly connected between the two fixed clamping plates 3 , and another connecting rod 5 is commonly connected between the two movable clamping plates 4 .

[0034] The side of the suspension frame 1 is rotatably connected to a hook 6 , and a torsion spring is connected between the suspension frame 1 and the hook 6 .

[0035] In this embodiment, the worker hangs the suspension wire clamp on the insulator string through the hanging frame 1, and then the worker lifts up the connecting rod 5 to make the two movable clamps 4 flip upward synchronously, and then hangs the connecting rod 5 on the hook 6, and then the cable is located on the inner arc surface of the fixed clamp 3, and then the hook 6 is manually flipped downward to make the connecting rod 5 disengage from the hook 6, and the two movable clamps 4 flip downward to clamp the cable, and then the torsion spring on the hook 6 automatically resets the hook 6. At this time, the cable is clamped between the fixed clamp 3 and the movable clamp 4, and then the fixed clamp 3 and the movable clamp 4 are fixed by bolts to complete the clamping and fixation of the cable.

[0036] Example 2

[0037] On the basis of Example 1, Figure 1-Figure 7As shown, two telescopic spring rods 11 are installed on the inner arc surface of each fixed clamp 3 and each movable clamp 4, and an inner clamp 12 is commonly installed on the telescopic ends of each two telescopic spring rods 11, the two inner clamps 12 in each annular wire clamp are symmetrically arranged, and a wedge block 13 is installed on the outer arc surface of each inner clamp 12, and a connecting arm 14 is installed at the four corners of the bottom of the suspension frame 1, and each connecting arm 14 is installed with a top plate 15, and each top plate 15 is in contact with the inclined surface of a wedge block 13.

[0038] When the inner clamping plate 12 is in a normal clamping state for the cable, the position where the top plate 15 contacts the inclined surface of the wedge block 13 is located in the middle of the inclined surface of the wedge block 13. When the inner arc surface of the inner clamping plate 12 is worn and a gap is generated between the cable and the cable, the inclined surface of the wedge block 13 can continue to move along the top plate 15, so that the inner clamping plate 12 has space to continue to move and clamp the cable.

[0039] The inner curved surface of the inner clamping plate 12 for clamping the cable is provided with a wear-resistant layer to reduce the degree of wear between the inner clamping plate 12 and the cable.

[0040] The connecting rod 5 is a spring telescopic rod 501 composed of a telescopic rod 501 and a fixed rod 502. A groove is opened on one side of the fixed rod 502. The telescopic rod 501 slides in the groove of the fixed rod 502, and a spring is installed between the grooves of the telescopic rod 501 and the fixed rod 502.

[0041] When the inner clamping plate 12 is in a normal clamping state for the cable, the outer surface of the rod body portion of the telescopic rod 501 hidden in the groove of the fixed rod 502 is provided with a red coating.

[0042] The two fixed clamping plates 3 have facing sides respectively formed with a first circular hole 301 for inserting the connecting rod 5 , and the two movable clamping plates 4 have facing sides respectively formed with a second circular hole 401 for inserting the connecting rod 5 .

[0043] Two telescopic spring beads 503 are installed on each telescopic rod 501, and two through holes 504 are provided on each fixed rod 502. The operating principle of the telescopic spring beads 503 is consistent with the telescopic fixing principle of the umbrella handle, which will not be repeated here.

[0044] After that, the worker moves the two sets of fixed clamping plates 3 and the movable clamping plate 4 to move them closer together, so that the telescopic rod 501 of the connecting rod 5 is in the state of being retracted in the fixed rod 502, that is, the telescopic spring ball 503 is located in the through hole 504 to fix the relative position of the telescopic rod 501 and the fixed rod 502, and inserts the connecting rod 5 in the retracted state into the circular hole 401 of the two movable clamping plates 4. At this time, there is no need to insert the connecting rod 5 between the two fixed clamping plates 3. The worker can lift the connecting rod 5 upward to make the two movable clamping plates 4 flip upward synchronously, and then hang the connecting rod 5 on the hook 6. The worker can make the cable be located on one side of the inner arc surface of the inner clamping plate 12, and then disengage the connecting rod 5 from the hook 6, and let the movable clamping plate 4 flip down and reset, so that the two symmetrical inner clamping plates 12 are located on both sides of the cable but are not in the clamping state. After that, the worker moves the two sets of fixed clamping plates 3 and the movable clamping plate 4 to move them away from each other. Before moving, the retractable spring ball 503 can be temporarily removed between the two movable clamping plates 4. The connecting rod 5 in the retracted state causes the fixed clamping plate 3 and the movable clamping plate 4 to move to the top plate 15 and contact the inclined surface of the wedge block 13 at the corresponding position. Then the worker presses the telescopic spring bead 503 to unlock the telescopic rod 501 and the fixed rod 502 to the fixed state, so that the telescopic rod 501 can elastically retract in the groove of the fixed rod 502. Then, the unlocked connecting rod 5 is inserted between the two fixed clamping plates 3 and the two movable clamping plates 4. At this time, under the elastic extension of the telescopic rod 501, the inclined surface of the wedge block 13 moves along the top plate 15, driving the inner clamping plate 12 to gradually contact and clamp the cable, and in this process, the telescopic spring rod 11 adaptively extends until the middle position of the inclined surface of the wedge block 13 contacts the top plate 15. At this time, the two symmetrical inner clamping plates 12 just clamp the cable. In this state, the telescopic rod 501 is still not fully extended, that is, the spring between the telescopic rod 501 and the fixed rod 502 is still in a compressed state, and the cable clamping operation is completed.

[0045] Furthermore, since the telescopic rod 501 is not fully extended when the cable is in the normal clamping state, the elastic extension force of the telescopic rod 501 can always act on the wedge block 13. After long-term use, when wear occurs between the cable and the inner clamping plate 12, a gap is generated between the inner clamping plate 12 and the cable, making it impossible to clamp them. At this time, the elastic extension force of the telescopic rod 501 can drive the inclined surface of the wedge block 13 to continue to move along the top plate 15, so that the inner clamping plate 12 is closer to the cable, ensuring that the inner clamping plate 12 is always in a clamped state for the cable.

[0046] Furthermore, when the inner plate 12 is in a normal clamping state for the cables, the outer surface of the portion of the telescopic rod 501 hidden in the groove of the fixed rod 502 is provided with a red coating. When a gap is generated between the inner plate 12 and the cables and the cables cannot be clamped, the telescopic rod 501 will be further extended to ensure that the inner plate 12 is always in a clamping state for the cables. At this time, the portion of the rod with a red coating hidden in the groove of the fixed rod 502 will be exposed, thereby promptly alerting the inspectors on the ground. In this way, there is no need to wait until the inspectors climb up to conduct an inspection to discover the wear and tear. Moreover, the larger the gap caused by the wear between the inner plate 12 and the cables, the greater the degree of further extension of the telescopic rod 501 will be, and the more the area of ​​the rod with a red coating will be exposed. The inspectors can know the degree of wear between the inner plate 12 and the cables by observing the exposed area of ​​the rod with a red coating on the ground or nearby, thereby realizing rapid transmission of information.

[0047] Furthermore, the rod body portion with the red coating is usually hidden in the groove of the fixing rod 502, so as to prevent the red coating from being worn by wind and sand.

[0048] Furthermore, the connecting rod 5 is designed as a spring telescopic rod 501 composed of a telescopic rod 501 and a fixed rod 502. In this way, when the inspector checks the wear of the clamping contact position between the inner clamp plate 12 and the cable, the telescopic rod 501 can be directly moved and retracted into the fixed rod 502, so that the telescopic spring bead 503 is located in the through hole 504 to fix the relative position of the telescopic rod 501 and the fixed rod 502, thereby removing the connecting rod 5 between the two sets of fixed clamp plates 3 and the movable clamp plate 4, so that the wedge block 13 loses its limit position. Pushing force, under the rebound and reset action of the telescopic spring rod 11, the inner clamping plate 12 automatically breaks away from the contact and clamping relationship with the cable, and then the worker can move the fixed clamping plate 3 and the movable clamping plate 4 to make the inner clamping plate 12 leave the original position of clamping the cable, so that the clamping position of the cable is exposed and can be directly observed. A large gap is also formed between the inner arc surface of the inner clamping plate 12 and the cable, which is convenient for personnel to check. In this way, there is no need to remove the fixing bolts of the fixed clamping plate 3 and the movable clamping plate 4, and the wear of the cable clamping position and the inner clamping plate 12 can be checked.

[0049] Example 3

[0050] On the basis of Example 2, Figure 1 As shown, a gap is left between the bottom of the fixed clamping plate 3 and the movable clamping plate 4 that form a circular wire clamp, so that rainwater or dust impurities can fall through the gap, thereby reducing the situation where the cable clamping position is aggravated by the accumulation of rainwater or dust impurities.

[0051] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A suspension wire clamp for a power supply line, comprising a suspension frame (1), a slider (2), a fixed clamping plate (3) and a movable clamping plate (4), wherein a slide groove (101) is provided at the bottom of the suspension frame (1), two sliders (2) are slidably arranged in the slide groove (101), each of the sliders (2) is provided with a fixed clamping plate (3), each of the fixed clamping plates (3) is rotatably connected to a movable clamping plate (4), and the fixed clamping plates (3) and the movable clamping plates (4) form a circular wire clamp; a cable is placed between the fixed clamping plate (3) and the movable clamping plate (4), and then the fixed clamping plate (3) and the movable clamping plate (4) are fixed by bolts to clamp the cable; Its characteristic is that include: A connecting rod (5), wherein one connecting rod (5) is commonly connected between the two fixed clamping plates (3), and another connecting rod (5) is commonly connected between the two movable clamping plates (4); by moving the connecting rod (5) between the two movable clamping plates (4), the two movable clamping plates (4) are synchronously driven to flip together, thereby achieving synchronous clamping of the cables by the two groups of fixed clamping plates (3) and the movable clamping plates (4); Two telescopic spring rods (11) are installed on the inner arc surface of each fixed clamping plate (3) and each movable clamping plate (4), and an inner clamping plate (12) is installed on the telescopic ends of each two telescopic spring rods (11). The two inner clamping plates (12) in each annular wire clamp are symmetrically arranged. The inner clamping plates (12) replace the fixed clamping plates (3) and the movable clamping plates (4) to clamp the cables. A wedge block (13) is installed on the outer arc surface of each inner clamping plate (12). A connecting arm (14) is installed at each of the four corners of the bottom of the suspension frame (1). Each connecting arm (14) is installed with a top plate (15). Each top plate (15) contacts the inclined surface of a wedge block (13). The connecting rod (5) is a spring telescopic rod (501) composed of a telescopic rod (501) and a fixed rod (502); a groove is formed on one side of the fixed rod (502); the telescopic rod (501) slides in the groove of the fixed rod (502); and a spring is installed between the grooves of the telescopic rod (501) and the fixed rod (502); A first circular hole (301) is respectively provided on the facing sides of the two fixed clamping plates (3), and a second circular hole (401) is respectively provided on the facing sides of the two movable clamping plates (4). The two first circular holes (301) are used for inserting the two ends of one of the connecting rods (5), and the two second circular holes (401) are used for inserting the two ends of the other connecting rod (5); Two telescopic spring beads (503) are mounted on each telescopic rod (501), and two through holes (504) are provided on each fixed rod (502). When the telescopic rod (501) is retracted into the groove of the fixed rod (502), the telescopic spring beads (503) are in a retracted state. When the telescopic spring beads (503) move to the position of the through holes (504), they are automatically ejected to fix the relative position of the telescopic rod (501) and the fixed rod (502).

2. A suspension clamp for a power supply line according to claim 1, characterized in that: The hanging frame (1) is rotatably connected to a hook (6) on the side, and a torsion spring is connected between the hanging frame (1) and the hook (6). The worker manually flips down the hook (6) to hang the connecting rod (5) between the two movable clamping plates (4). The worker does not need to lift the connecting rod (5) all the time to keep the movable clamping plate (4) in an upturned state, which makes it easier for the worker to put the cable into the fixed clamping plate (3) or to inspect the inner walls of the fixed clamping plate (3) and the movable clamping plate (4).

3. The suspension clamp for a power supply line according to claim 1, characterized in that: When the inner clamping plate (12) is in a normal clamping state for the cable, the position where the top plate (15) contacts the inclined surface of the wedge block (13) is located in the middle of the inclined surface of the wedge block (13).

4. The suspension clamp for a power supply line according to claim 1, characterized in that: The inner curved surface of the inner clamping plate (12) for clamping the cable is provided with a wear-resistant layer.

5. The suspension clamp for a power supply line according to claim 1, characterized in that: When the inner clamping plate (12) is in a normal clamping state for the cable, the outer surface of the rod body portion of the telescopic rod (501) hidden in the groove of the fixed rod (502) is provided with a red coating.

6. A suspension clamp for a power supply line according to any one of claims 1 to 5, characterized in that: A gap is left between the bottoms of the fixed clamping plate (3) and the movable clamping plate (4) which form a circular wire clamp.

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