High-altitude wiring clamp

Abstract

The invention relates to the technical field of equipment in the electric power field, in particular to a high-altitude wiring clamp which comprises a wiring clamp head and an insulating rod, the wiring clamp head comprises a shell formed by combining a fixed plate and a fixed die, a fixed jaw arranged at the top end in the shell and a movable jaw oppositely arranged on the upper clamping side of the fixed jaw, a bottom supporting plate rotationally connected with the fixed mold is arranged on the insulating rod, and a pin shaft is arranged at the connecting part of the bottom supporting plate and the fixed mold; a transmission mechanism; a limiting assembly; and a polishing assembly. On one hand, the movable jaw can be driven to linearly move towards the fixed jaw, the effect of clamping and fixing a high-altitude cable is achieved, and the high-altitude wiring clamp is not prone to falling off; and on the other hand, the acting force generated under the linear motion of the transmission mechanism can drive a structure included on the limiting assembly to limit and lock a pin shaft which is connected to the fixed mold and the bottom supporting plate in a relatively rotating manner, so that the wiring clamp head is locked at an included angle on the bottom supporting plate, and the use of the multi-angle wiring clamp head is realized.

Description

Technical Field

[0001] The invention relates to the technical field of equipment in the electric power field, and in particular to aerial wiring clamps. Background Art

[0002] Aerial wiring pliers are special tools for temporary wiring during maintenance and testing of high-voltage equipment in power systems. They are suitable for testing and wiring of aerial equipment on the ground. Their application has transferred traditional aerial work to the ground, greatly improving on-site working conditions, and greatly improving the safety and efficiency of operations. The special operating lever of the aerial wiring pliers is used to hang the upper jaw of the wiring pliers on the position where wiring is required. By pushing and pulling the special operating lever, the jaws can be opened and closed freely to complete the wiring work.

[0003] However, the clamping angle of the high-altitude wiring clamps in the prior art is single, and it is not convenient to implement the clamping operation on the high-altitude cables in any scenario. The overall operation is cumbersome, and after the clamping is completed, the insulating rod will be easily disassembled and removed, which may cause the wiring clamp to fall off the power equipment, resulting in the risk of high-voltage electric shock. The angle of the insulating rod will be offset during the process, which makes it inconvenient to separate and combine the insulating rod and the wiring clamp later.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned shortcomings and provide an aerial wiring clamp.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: an aerial wiring clamp, comprising a wiring clamp head and an insulating rod, the wiring clamp head comprising a housing composed of a fixed plate and a fixed die, a fixed jaw arranged at the top end of the housing, and a movable jaw arranged on the clamping side of the fixed jaw, the insulating rod is provided with a bottom support plate rotatably connected to the fixed die, and a pin is provided at the connection portion between the bottom support plate and the fixed die;

[0007] A transmission mechanism, disposed in the housing, for driving the movable jaw to move toward the clamping side of the fixed jaw;

[0008] A limiting assembly, arranged on the fixed mold, for limiting and locking the pin shaft;

[0009] The grinding assembly comprises a grinding roller arranged on the fixed jaw and used for grinding and removing the oxide layer on the surface of the cable, and a transmission unit 1 for driving the grinding roller to rotate.

[0010] Furthermore, the transmission mechanism includes a first rack connected to one end of the movable jaw, a second rack arranged on one side of the first rack and connected to the test line, and the second rack is provided with a first gear meshing with the first rack for transmission.

[0011] Furthermore, the limiting assembly includes a ratchet and a locking piece adapted for limiting, a spring is horizontally arranged on one end of the locking piece away from the ratchet, a protrusion is spaced apart on the other side of the locking piece relative to the spring, and a movable rod is arranged on the protrusion.

[0012] Furthermore, a transmission unit 2 for driving the movable rod to move linearly is provided at one end of the movable rod away from the protrusion;

[0013] The second transmission unit includes a third rack arranged on the movable rod, a second gear meshed with the third rack, and a slot is arranged on the lower side of the second gear and on the fixed jaw.

[0014] Furthermore, the movable jaw is provided with a fourth rack adapted to the slot and meshing with the second gear for transmission.

[0015] Furthermore, the transmission unit 1 includes a central gear coaxially arranged at the end of the grinding roller and a side gear meshingly arranged at the side of the central gear, and a transmission rod connected to the second gear is arranged on the side gear.

[0016] Furthermore, the ratchet is sleeved and fixed on the outer wall of the pin shaft, and the engaging member is arranged on the end surface of the fixed mold through a rotating shaft.

[0017] Furthermore, a tooth surface for increasing the cable clamping friction is provided on a side of the movable jaw facing the fixed jaw.

[0018] Compared with the prior art, the present invention has the following beneficial effects: the present invention can, through the transmission mechanism and the limit assembly, drive the movable jaw to move linearly toward the fixed jaw, thereby achieving the clamping and fixing effect of the aerial cable, so that the aerial wiring clamp is not easy to fall; on the other hand, the force generated by the linear motion of the transmission mechanism will simultaneously drive the structure included in the limit assembly to limit and lock the pin shaft that is relatively connected to the fixed mold and the bottom support plate for rotation, so that the angle of the wiring clamp head on the bottom support plate is locked, which is convenient for disassembling and separating the wiring clamp head and the insulating rod, and realizes the use of multi-angle wiring clamp heads; and through the provided grinding assembly, under the action of the transmission unit 1, the grinding roller is driven to grind and complete the deoxidation operation of the cable, thereby increasing the practicality and convenience of the aerial wiring clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A three-dimensional structural diagram of an overall perspective of an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the exploded structure of a wiring clamp head from one perspective according to an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the exploded structure of a wiring clamp head from another perspective according to an embodiment of the present invention;

[0023] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0024] Figure 5 It is a structural schematic diagram of a limit assembly connected to a fixed mold in one embodiment of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the transmission connection on the grinding roller in one embodiment of the present invention;

[0026] Figure 7 It is a three-dimensional structural diagram of a state of a wiring clamp head on a bottom support plate in one embodiment of the present invention;

[0027] Figure 8 It is a three-dimensional structural diagram of another state of the wiring clamp head on the bottom support plate in one embodiment of the present invention.

[0028] In the figure: 100, insulating rod; 1, fixed plate; 2, fixed mold; 3, bottom support plate; 31, pin shaft; 4, fixed jaw; 5, movable jaw; 6, transmission mechanism; 61, first rack; 62, second rack; 63, first gear; 7, limit assembly; 71, ratchet; 72, engaging piece; 73, spring; 74, protrusion; 75, movable rod; 76, transmission unit two; 761, third rack; 762, second gear; 763, slot; 8, grinding assembly; 81, grinding roller; 82, center gear; 83, side gear; 84, transmission rod; 9, fourth rack. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] like Figure 1-8 As shown, the aerial wiring clamp of the present invention comprises a wiring clamp head and an insulating rod 100, wherein the wiring clamp head comprises a housing composed of a fixed plate 1 and a fixed die 2, a fixed jaw 4 arranged at the top end of the housing, and a movable jaw 5 arranged on the clamping side of the fixed jaw 4, and a bottom support plate 3 rotatably connected to the fixed die 2 is arranged on the insulating rod 100, and a pin 31 is arranged at the connecting portion between the bottom support plate 3 and the fixed die 2;

[0033] A transmission mechanism 6, disposed in the housing, for driving the movable jaw 5 to move toward the clamping side of the fixed jaw 4;

[0034] A limiting component 7, arranged on the fixed mold 2, for limiting and locking the pin shaft 31;

[0035] The grinding assembly 8 includes a grinding roller 81 which is arranged on the fixed jaw 4 and is used for grinding and removing the oxide layer on the surface of the cable, and a transmission unit 1 which drives the grinding roller 81 to rotate.

[0036] In a specific implementation, the wiring clamp head includes a housing composed of a fixed plate 1 and a fixed mold 2 which are stacked up and fixed with a plurality of hexagon socket screws, a fixed jaw 4 installed at the top of the housing, and a movable jaw 5 which moves linearly along the center line of the fixed jaw 4. Under the action of the transmission mechanism 6, the movable jaw 5 can be linearly driven to move linearly along the center line of the fixed jaw 4, thereby realizing the clamping function of the aerial cable.

[0037] The fixed mold 2 is also connected to the bottom support plate 3 through the pin 31 on the shell, so that the fixed mold 2 can make a circular rotation around the center line of the pin 31 on the end surface of the bottom support plate 3, thereby realizing multi-angle clamping;

[0038] And in the process of moving the movable jaw 5 toward the fixed jaw 4, on the one hand, under the action of the transmission unit-structure included in the grinding assembly 8, the grinding assembly 8 can be driven to rotate, thereby realizing the removal of the oxide layer on the surface of the cable by grinding the outer wall of the grinding assembly 8, thereby increasing the use function of the aerial wiring clamp; on the other hand, with the cooperation of the limit assembly 7, the angle between the rotated wiring clamp head and the bottom support plate 3 can be limited and locked after clamping the aerial cable, thereby ensuring the stable clamping effect of the aerial wiring clamp.

[0039] It should be noted that the insulating rod 100 and the bottom support plate 3 are detachably connected using a bayonet structure.

[0040] In one embodiment, the transmission mechanism 6 includes a first rack 61 connected to one end of the movable jaw 5, a second rack 62 arranged at one side of the first rack 61 and connected to the test line, and a first gear 63 meshing and transmitting with the first rack 61 is provided on the second rack 62. With this design, through the first rack 61 vertically welded at one end of the movable jaw 5 and the second rack 62 slidably connected in the fixed mold 2, when a force is applied to one end of the second rack 62, the second rack 62 will be driven to move linearly, and the first gear 63 meshing and connected to the second rack 62 transmits the force to drive the movable jaw 5 to move linearly in the opposite direction, thereby realizing the opening and closing operation between the fixed jaw 4 and the movable jaw 5, and achieving the clamping effect of fixing the high-altitude cable.

[0041] It should be noted that a push rod motor for linear motion is fixedly mounted on one end of the second rack 62 .

[0042] In one embodiment, the position limiting assembly 7 comprises a ratchet 71 and a clamping member 72 adapted for position limiting, a spring 73 is horizontally arranged on one end of the clamping member 72 away from the ratchet 71, a protrusion 74 is arranged at intervals on the other side of the clamping member 72 opposite to the spring 73, and a movable rod 75 is arranged on the protrusion 74. With such a design, through the ratchet 71 and the clamping member 72 adapted for position limiting installed in the fixed mold 2, when one side of the movable rod 75 is subjected to the force of linear motion, the protrusion 74 welded on the end of the movable rod 75 will be driven to approach one side of the clamping member 72, and under the elastic support of the spring 73, the clamping member 72 is compressed, so that the other side of the rotating shaft on the clamping member 72 is clamped and fixed with the position limiting portion on the ratchet 71, so as to achieve the position limiting locking effect of the pin 31 coaxially sleeved on the ratchet 71.

[0043] In one embodiment, a second transmission unit 76 for driving the movable rod 75 to move linearly is disposed on one end of the movable rod 75 away from the protrusion 74;

[0044] The transmission unit 2 76 includes a third rack 761 provided on the movable rod 75, a second gear 762 meshed with the third rack 761, and a slot 763 is provided on the lower side of the second gear 762 and slotted on the fixed jaw 4. In this design, the third rack 761 welded on the other end of the movable rod 75 and the second gear 762 meshed with the third rack 761, and the top of the slot 763 transversely turned on the fixed jaw 4 is connected to the second gear 762.

[0045] In one embodiment, the movable jaw 5 is provided with a fourth rack 9 adapted to the slot 763 and meshing with the second gear 762. With this design, the fourth rack 9 welded on one side of the movable jaw 5 and distributed on the same center line as the slot 763, when the movable jaw 5 is subjected to the force of linear motion and approaches the slot 763, the fourth rack 9 will be driven to insert into the slot 763. At this time, during the process of moving, the teeth on the fourth rack 9 will mesh with the second gear 762 connected to the top of the slot 763 to rotate, so that the third rack 761 meshing on the upper side of the second gear 762 rotates, and then the movable rod 75 welded on the end of the third rack 761 moves linearly, and the force is transmitted to drive the subsequent limit assembly 7 to limit and lock the pin 31.

[0046] In one embodiment, the transmission unit 1 includes a central gear 82 coaxially arranged at the end of the grinding roller 81, a side gear 83 meshing with the side of the central gear 82, and a transmission rod 84 connected to the second gear 762 is arranged on the side gear 83. With this design, through the central gear 82 coaxially installed on the grinding roller 81 and the side gear 83 meshing with the side of the central gear 82, and the transmission rod 84 coaxially installed on the side gear 83 and connected to the second gear 762, when the second gear 762 rotates, the force generated will be transmitted to the grinding roller 81 in sequence through the transmission rod 84, the side gear 83 and the central gear 82, so that the movement of the grinding roller 81 is realized. Once the high-altitude cable is clamped, the grinding roller 81 will be synchronously driven to rotate to grind and remove the oxide layer on the cable surface, and the use effect is good.

[0047] In one embodiment, the ratchet 71 is sleeved and fixed on the outer wall of the rod of the pin shaft 31, and the engaging member 72 is arranged on the end face of the fixed mold 2 through a rotating shaft. In this design, by sleeve-fixing the ratchet 71 on the outer wall of the rod of the pin shaft 31 and using the engaging member 72 sleeved and installed on the end face of the fixed mold 2 with a rotating shaft, when one end of the engaging member 72 is subjected to a force, the other end of the engaging member 72 is driven to move in the opposite direction under the action of the rotating shaft, thereby realizing the adaptive limiting use of the engaging member 72 and the ratchet 71.

[0048] In one embodiment, a tooth surface for increasing the cable clamping friction is provided on the side of the movable jaw 5 facing the fixed jaw 4. With this design, the uneven structure of the tooth surface machined on the side of the movable jaw 5 facing the fixed jaw 4 can increase the friction between the fixed jaw 4 and the movable jaw 5 of the aerial cable on the wiring clamp head, thereby achieving a firm clamping effect.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A high-altitude wiring clamp, comprising a wiring clamp head and an insulating rod (100), characterized in that: The wiring clamp head comprises a housing composed of a fixed plate (1) and a fixed die (2), a fixed jaw (4) arranged at the top end of the housing, and a movable jaw (5) arranged on the clamping side of the fixed jaw (4), the insulating rod (100) is provided with a bottom support plate (3) rotatably connected to the fixed die (2), and a pin shaft (31) is provided at the connection portion between the bottom support plate (3) and the fixed die (2); A transmission mechanism (6) is arranged in the housing and is used to drive the movable jaw (5) to move toward the clamping side of the fixed jaw (4); A limiting assembly (7), arranged on the fixed mold (2), and used for limiting and locking the pin shaft (31); A grinding assembly (8) comprises a grinding roller (81) arranged on the fixed jaw (4) and used for grinding and removing the oxide layer on the surface of the cable, and a transmission unit 1 for driving the grinding roller (81) to rotate.

2. The aerial wiring clamp according to claim 1, characterized in that: The transmission mechanism (6) comprises a first rack (61) connected to one end of the movable jaw (5), and a second rack (62) arranged at one side of the first rack (61) and connected to a test line, wherein the second rack (62) is provided with a first gear (63) meshing with the first rack (61) for transmission.

3. The aerial wiring clamp according to claim 1, characterized in that: The limiting assembly (7) comprises a ratchet (71) and a clamping member (72) adapted for limiting, a spring (73) being horizontally arranged at one end of the clamping member (72) away from the ratchet (71), a protrusion (74) being spaced apart from the other side of the spring (73) on the clamping member (72), and a movable rod (75) being arranged on the protrusion (74).

4. The aerial wiring clamp according to claim 3, characterized in that: A transmission unit 2 (76) for driving the movable rod (75) to move linearly is provided at one end of the movable rod (75) away from the protrusion (74); The transmission unit 2 (76) comprises a third rack (761) arranged on the movable rod (75), a second gear (762) meshing with the third rack (761), and a slot (763) is provided on the lower side of the second gear (762) and is slotted on the fixed jaw (4).

5. The aerial wiring clamp according to claim 4, characterized in that: The movable jaw (5) is provided with a fourth rack (9) adapted to the slot (763) and meshing with the second gear (762) for transmission.

6. The aerial wiring clamp according to claim 4, characterized in that: The transmission unit 1 comprises a central gear (82) coaxially arranged at the end of the grinding roller (81), and a side gear (83) meshingly arranged at the side of the central gear (82), and a transmission rod (84) connected to the second gear (762) is arranged on the side gear (83).

7. The aerial wiring clamp according to claim 3, characterized in that: The ratchet (71) is sleeved and fixed on the outer wall of the rod portion of the pin shaft (31), and the engaging member (72) is arranged on the end surface of the fixed mold (2) via a rotating shaft.

8. The aerial wiring clamp according to claim 1, characterized in that: A tooth surface for increasing the cable clamping friction force is provided on a side of the movable jaw (5) facing the fixed jaw (4).

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