A telescopic insulating multi-functional contact device

Abstract

The present invention provides a telescopic insulating multi-functional contact device, which includes a telescopic insulating rod, a contact head installed at the head of the telescopic insulating rod, and a wire reel device installed at the tail of the telescopic insulating rod. The telescopic insulating rod installs or disassembles the contact head through a quick-change joint structure. The contact head is an electrical detector or a grounding hook. The electrical detector and the grounding hook are quickly interchanged through the quick-change joint structure. The grounding hook includes a grounding wire, and the wire reel device is used to deploy or accommodate the grounding wire. The telescopic insulating multi-functional contact device provided by the present invention can achieve quick replacement at the head end of the insulating rod and has strong versatility; the head end of the rod can be used to install and fix the grounding hook and the electrical detector and quickly interchange them; at the same time, a wire reel device for accommodating copper wires is provided on the insulating rod. This device can be flexibly disassembled and assembled and is mainly used for the arrangement, accommodation and deployment of the grounding wire.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical safety appliances, and particularly relates to a telescopic insulating multi-functional contactor. Background Art

[0002] Insulation telemetry, phase verification and other operations are important tasks before the commissioning of transmission lines. In the prior art, there are the following problems in the work of telemetering insulation and phase verification of our transmission lines: 1. Instead of a grounding hook matching the insulating rod, a copper wire is tied to the top of the insulating rod and then contacts the connection part of the line to complete the operation, resulting in poor contact; 2. The grounding copper wire is relatively long and there is no special device for storage. The storage of the copper wire before and after the operation is cumbersome and non-standard; 3. The connection end between the front end of the insulating rod and the voltage detector cannot be disassembled and cannot be interchanged and used commonly. Voltage detectors and grounding hooks of different models cannot be used on the same insulating rod, which brings great inconvenience to the operation. Summary of the Invention

[0003] In view of the above problems, the present invention proposes a telescopic insulating multi-functional contactor to improve the above problems.

[0004] In a first aspect, the present invention provides a telescopic insulating multi-functional contactor, which includes a telescopic insulating rod, a contact head installed at the head of the telescopic insulating rod, and a wire reel device installed at the tail of the telescopic insulating rod. The telescopic insulating rod installs or disassembles the contact head through a quick-change joint structure. The contact head is a voltage detector or a grounding hook. The voltage detector and the grounding hook are quickly interchanged through the quick-change joint structure. The grounding hook includes a grounding wire, and the wire reel device is used to deploy or accommodate the grounding wire.

[0005] More preferably, the contact head includes a contact end and a connection end opposite to the contact end, and the grounding wire of the grounding hook is connected to the connection end.

[0006] More preferably, the quick-change joint structure includes a compression spring device arranged at the head of the telescopic insulating rod, a positioning pin arranged on the telescopic insulating rod close to the compression spring device, and a positioning groove arranged on the connection end far from the contact end. The connection end is sleeved and compressed on the compression spring device and rotated to make the positioning pin and the positioning groove cooperate for installation and disassembly.

[0007] More preferably, the spring device includes a spring seat with an opening, a first compression spring arranged in the spring seat, and a spring column arranged on the first compression spring. When the first compression spring is in a natural state, the top of the spring column exposes from the opening. The spring seat is fixed to the head of the telescopic insulating rod. The connection end compresses the first compression spring and rotates the contactor to make the positioning groove and the positioning pin cooperate.

[0008] Preferably, the take-up device includes a fixed seat fixed on the telescopic insulating rod, a take-up wheel connected to the fixed seat through a first bearing, and a housing covering the take-up wheel. The take-up wheel includes a fixed part, a first wheel shaft and a second wheel shaft arranged oppositely, and a winding groove connecting the first wheel shaft and the second wheel shaft for winding the wire. A wire guiding hole is arranged on the housing at a position opposite to the winding groove. The winding groove is provided with a second wire guiding hole and is a hollow structure. The telescopic insulating multi-functional contactor further includes a take-up shaft arranged in the winding groove and a hand crank fixed on the side of the take-up shaft away from the fixed seat. The take-up shaft includes a transverse part and an abutting part fixed on the side of the transverse part close to the fixed seat. One end of the transverse part away from the abutting part passes through the housing and is fixed to the hand crank. The take-up shaft and the winding groove are fixed through a second compression spring. The second compression spring surrounds the transverse part to make the abutting part abut against the inner side surface of the winding groove. The take-up shaft and the housing are connected through a second bearing.

[0009] Preferably, a groove is provided on the side of the fixed seat away from the telescopic insulating rod, the first bearing is fixed in the groove, and the fixed part of the take-up wheel and the first bearing are fixed through a fastener.

[0010] Preferably, the hand crank includes a crank arm and a handle.

[0011] Preferably, the take-up device further includes a positioning structure, and the positioning structure includes a positioning hole arranged on the side of the housing close to the hand crank and a spring lock arranged on the crank arm.

[0012] Preferably, the positioning holes are arranged at intervals on the housing corresponding to the position of the spring lock and are arranged in a circumferential shape.

[0013] Preferably, the telescopic insulating rod is made of epoxy resin.

[0014] The technical effects of the present invention are as follows: A telescopic insulating multi-functional contactor provided by the present invention can realize quick replacement of the head end of the insulating rod and has strong universality; the head end of the rod can be used for installing and fixing a grounding hook and a voltage detector and can be quickly interchanged; at the same time, a take-up device for storing copper wires is arranged on the insulating rod, and the device can be flexibly disassembled and assembled, and is mainly used for sorting, storing and unwinding grounding wires.

[0015] The rod body is made of a telescopic insulating material, which is light in weight and convenient to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the contact head of the telescopic insulating multi-functional contactor of the present invention being a voltage detector;

[0017] Figure 2 The structural schematic diagram of the contact part of the retractable insulating multi-functional contactor of the present invention is a grounding hook;

[0018] Figure 3 is Figure 2 the sectional view along the A-A direction;

[0019] Figure 4 is Figure 3 the enlarged view of the quick-change joint structure in;

[0020] Figure 5 the schematic diagram of the grounding hook ready to be connected to the retractable insulating rod;

[0021] Figure 6 is Figure 3 the enlarged view of the wire reel device in;

[0022] Figure 7 the locking state diagram of the spring lock;

[0023] Figure 8 is Figure 2 the sectional view of the wire reel device along the B-B direction;

[0024] Figure 9 is Figure 2 the sectional view along the C-C direction;

[0025] Figure 10 is Figure 9 the diagram of the state to be assembled in the direction;

[0026] Figure 11 the structural schematic diagram of the wire reel and the fixed seat in an embodiment of the present invention.

[0027] Reference numerals

[0028] Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] The present invention provides a retractable insulating multi-functional contactor 100, as Figures 1-11As shown, it includes a telescopic insulating rod 10, a quick-change joint structure 30, a contact head 20, and a wire reel device 40. Among them, the contact head 20 is installed at the head of the telescopic insulating rod 10, and the wire reel device 40 is installed at the tail of the telescopic insulating rod 10. The telescopic insulating rod 10 installs or disassembles the contact head 20 through the quick-change joint structure 30. Preferably, the contact head 20 is an electrical detector 201 or a grounding hook 202. The electrical detector 201 and the grounding hook 202 can be quickly interchanged through the quick-change joint structure 30. The grounding hook 202 further includes a grounding wire 2021, and the wire reel device 40 is used to deploy or accommodate the grounding wire 2021.

[0031] As Figures 1-3 shown, the contact head 20 includes a contact end 21 and a connection end 22 opposite to the contact end 21. Preferably, one end of the grounding wire 2021 (partially shown) of the grounding hook 202 is connected to the connection end 22.

[0032] The telescopic insulating rod 10 has at least two telescopic sections 11. In one embodiment, there are four telescopic sections 11, and an insulating handle 12 is further provided at the bottom of the lowermost telescopic section 11. The wire reel device 40 can be clamped on the first telescopic section 11 counted from the bottom upwards. Preferably, the telescopic insulating rod 10 is made of epoxy resin material, and each telescopic section 11 can maintain an extended state by setting the size of the connection part and using friction when the telescopic section 11 is extended.

[0033] As Figures 1-5 shown, the quick-change joint structure 30 includes a compression spring device 31 provided at the head of the telescopic insulating rod 10, a positioning pin 32 provided on the telescopic insulating rod 10 on one side close to the compression spring device 31, and a positioning groove 33 provided on the connection end 22 on the side away from the contact end 21. The distance between the positioning pin 32 and the edge of the head of the telescopic insulating rod 10 matches the distance between the positioning groove 33 and the edge of the connection end 22 close to the contact end 21. In one embodiment, the connection end 22 is in a cylindrical barrel shape, and the positioning groove 33 includes a vertical entry groove 331 and a limiting groove 332 communicating with the entry groove 331 in the horizontal direction. Among them, the connection end 22 is sleeved on the compression spring device 31. Align the entry groove 331 with the position of the positioning pin 32, then apply a thrust to the compression spring device 31 to compress the spring column 313 to be flush with the spring seat 311 and make the positioning pin 32 enter the entry groove 331, and rotate the connection end 22 to make the positioning pin 32 enter the limiting groove 332. The contact head 20 is supported by the supporting force of the first compression spring 312 and limited by the positioning pin 32 to the limiting groove 332, so that the cooperation installation and disassembly of the positioning pin 32 and the positioning groove 33 can be realized.

[0034] Preferably, the spring device includes a spring seat 311 with an opening 3111, a first compression spring 312 disposed within the spring seat 311, and a spring post 313 disposed on the first compression spring 312. When the first compression spring 312 is in its natural state, the top of the spring post 313 protrudes from the opening 3111. The spring seat 311 is fixed to the head of the telescopic insulating rod 10. Preferably, the connecting end 22 is installed by compressing the first compression spring 312 and rotating the contactor to engage the positioning groove 33 and the positioning pin 32. Rotating in the reverse direction allows for quick disassembly of the contact head 20 to install or remove the grounding hook 202 and the electrical detector 201, enabling quick interchange during use.

[0035] Figures 6-7 Combined Figures 1-2 As shown, the wire reel device 40 includes a fixed seat 41 fixed to the telescopic insulating rod 10, a wire reel 42 connected to the fixed seat 41 through a first bearing 44, and a housing 43 covering the wire reel 42. The wire reel 42 includes a fixed portion 421, opposed first and second wheel shafts 422 and 423, and a wire winding groove 424 connecting the first and second wheel shafts 422 and 423 for winding wire. A second wire hole 4241 is provided in the wire winding groove, as Figure 11 described. A wire hole 431 is provided on the housing 43 opposite to the position of the wire winding groove 424 and a through hole for the wire reel shaft 46 to pass through. Among them, the wire reel shaft 46 is connected to the housing 43 through a second bearing 47. The wire winding groove 424 is a hollow structure and is provided with a second wire hole 4241. The telescopic insulating multi-functional contactor 100 further includes a wire reel shaft 46 disposed within the wire winding groove 424 and a crank 49 fixed to the side of the wire reel shaft 46 away from the fixed seat 41. Preferably, the crank 49 includes a crank arm 491 and a handle 492. The wire reel shaft 46 includes a transverse portion 461 and an abutting portion 462 fixed to the side of the transverse portion 461 close to the fixed seat 41. One end of the transverse portion 461 away from the abutting portion 462 passes through the housing 43 and is perpendicularly fixed to the crank arm 491. The wire reel shaft 46 and the wire winding groove 424 are fixed by a second compression spring 48. The second compression spring 48 surrounds the transverse portion 461 and makes the abutting portion 462 abut against the inner side surface of the wire winding groove 424. A three-layer stepped groove 412 is provided on the side of the fixed seat 41 away from the telescopic insulating rod 10. The first bearing 44 is fixed on the second step within the groove 412. The fixed portion 421 of the wire reel 42 passes through the first bearing 44 and is fixed to the first bearing 44 through a fastener 45. Preferably, the fastener 45 is a circlip.

[0036] Preferably, the part of the fixing base 41 connected to the telescopic insulating rod 10 includes a semi-circular groove 411. After the fixing base 41 is inserted into the telescopic insulating rod 10 through the part where the radius of the telescopic joint 11 is smaller than that of the semi-circular groove 411, the fixing base 41 is moved downward until it is fastened to the telescopic insulating rod 10, thereby fixing the wire reel device 40 to the telescopic insulating rod 10 to facilitate the accommodation of the grounding wire 2021. The fixing structure of the two is simple, and it is convenient to remove the wire reel device 40 when not in use.

[0037] The wire reel device 40 further includes a positioning structure 410. The positioning structure 410 includes a positioning hole 4101 provided on the side of the housing 43 close to the crank 49 and a spring lock 4102 provided on the rocker arm 491. The positioning holes 4101 are arranged at intervals on the side of the housing 43 close to the crank 49 and are arranged in a circle at the position corresponding to the spring lock 4102. The spring lock 4102 includes a third compression spring 41021 arranged in the rocker arm 491, a locking and positioning shaft 42022 passing through the third compression spring 41021, and a pull ring 42023 connected to the locking and positioning shaft 42022.

[0038] Usage method of the wire reel:

[0039] 1. When the wire reel is in the non-operating state, as Figure 7 shown, at this time the spring lock 4102 is snapped into the positioning hole 4101 to lock the crank 49, and both the crank 49 and the wire reel 42 cannot rotate.

[0040] 2. When it is necessary to wind the wire, after pulling open the spring lock 4102, hold the handle 492 and pull the wire reel shaft 46 axially outward along the wire reel shaft 46, so that the second compression spring 48 is in a compressed state. The outward movement of the wire reel shaft 46 creates a gap at the contact point between the abutting portion 462 and the inside of the wire winding groove 424. Then, insert the end of the grounding wire 2021 into the inside of the wire winding groove 424 through the wire hole 431 and the second wire hole 4241 to this gap. At the same time, release the handle 492 so that the wire reel shaft 46 is reset under the elastic force of the second compression spring 48 to press the end of the grounding wire 2021.

[0041] 3. Then, the handle 492 can be rotated clockwise or counterclockwise to start the wire reel 42, and the grounding wire 2021 is wound on the wire winding groove 424 of the wire reel 42.

[0042] During the winding process, the abutting portion 462 of the wire reel shaft 46 not only functions to press the end of the grounding wire 2021, but also plays a role in transmitting torque to the wire reel 42. The grounding wire 2021 is guided along the guide groove of the wire reel 42 and is wound onto the wire winding groove 424 of the wire reel 42.

[0043] In summary, the present invention provides a telescopic insulating multi-functional contact device. The head end of the insulating rod can be quickly replaced and has strong versatility. The head end of the insulating telescopic rod can be used to install and fix a grounding hook and a voltage detector, and can be quickly interchanged. At the same time, a wire winder device for accommodating copper wires is provided on the insulating rod. This device can be flexibly disassembled and assembled, and is mainly used for sorting, accommodating and unwinding grounding wires. The insulating telescopic rod is made of a telescopic insulating material, which is light in weight and convenient to carry and use.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. And these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A telescopic insulating multi-functional contactor, characterized in that, it includes a telescopic insulating rod, a contact head installed at the head of the telescopic insulating rod, and a wire reel device installed at the tail of the telescopic insulating rod. The telescopic insulating rod installs or disassembles the contact head through a quick-change joint structure. The contact head is an electrical detector or a grounding hook. The electrical detector and the grounding hook are quickly interchanged through the quick-change joint structure. The grounding hook includes a grounding wire, and the wire reel device is used to unwind or accommodate the grounding wire; The contact head includes a contact end and a connection end opposite to the contact end, and the grounding wire of the grounding hook is connected to the connection end; The quick-change joint structure includes a compression spring device arranged at the head of the telescopic insulating rod, a positioning pin arranged on the telescopic insulating rod near the compression spring device, and a positioning groove arranged on the connection end away from the contact end. The connection end is sleeved and compressed on the compression spring device and rotated to make the positioning pin cooperate with the positioning groove for installation and disassembly; The wire reel device includes a fixed seat fixed on the telescopic insulating rod, a wire reel connected to the fixed seat through a first bearing, and a housing covering the wire reel. The wire reel includes a fixed part, an opposed first wheel shaft and a second wheel shaft, and a winding groove connecting the first wheel shaft and the second wheel shaft for winding the wire. A wire hole opposite to the position of the winding groove is arranged on the housing. The winding groove is provided with a second wire hole and is a hollow structure. The telescopic insulating multi-functional contactor further includes a wire reel shaft arranged in the winding groove and a crank fixed on the side of the wire reel shaft away from the fixed seat. The wire reel shaft includes a transverse part and an abutting part fixed on the side of the transverse part close to the fixed seat. One end of the transverse part away from the abutting part passes through the housing and is fixed to the crank. The wire reel shaft and the winding groove are fixed by a second compression spring. The second compression spring surrounds the transverse part to make the abutting part abut against the inner side surface of the winding groove. The wire reel shaft and the housing are connected through a second bearing.

2. The telescopic insulating multi-functional contactor according to claim 1, characterized in that, the spring device includes a spring seat with an opening, a first compression spring arranged in the spring seat, and a spring column arranged on the first compression spring. In the natural state of the first compression spring, the top of the spring column exposes from the opening. The spring seat is fixed to the head of the telescopic insulating rod. The connection end compresses the first compression spring and rotates the contactor to make the positioning groove and the positioning pin cooperate.

3. The telescopic insulating multi-functional contactor according to claim 1, characterized in that, a groove is arranged on the side of the fixed seat away from the telescopic insulating rod, the first bearing is fixed in the groove, and the fixed part of the wire reel and the first bearing are fixed through a fastener.

4. The telescopic insulating multi-functional contactor according to claim 1, characterized in that, the crank includes a crank arm and a handle.

5. The telescopic insulating multi-functional contactor according to claim 4, It is characterized in that the take-up device further includes a positioning structure, which includes a positioning hole provided on the housing near the crank and a spring lock provided on the rocker arm.

6. The telescopic insulating multi-functional contactor according to claim 5, It is characterized in that the positioning holes are spaced on the housing corresponding to the position of the spring lock and are arranged in a circle.

7. The telescopic insulating multi-functional contactor according to claim 1, It is characterized in that the material of the telescopic insulating rod is epoxy resin.

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