Automatic knife switch device for melting ice on ground wire without power outage

Abstract

The utility model relates to the technical field of ground wire de-icing, and in particular provides an automatic knife switch device for de-icing ground wires without power outages, comprising a base, a first wiring assembly, a second wiring assembly, a third wiring assembly, and a reciprocating mechanism, wherein the first wiring assembly and the second wiring assembly are symmetrically arranged on the top of the base, the first wiring assembly and the second wiring assembly are arranged at intervals, the third wiring assembly is arranged between the first wiring assembly and the second wiring assembly, the reciprocating mechanism is arranged at the bottom of the third wiring assembly, and the third wiring assembly is slidably connected to the base through the reciprocating mechanism. The purpose is to solve the problem of poor control accuracy of the closing and opening positions of the existing knife switch device.

Description

Technical Field

[0001] The utility model relates to the technical field of ground wire ice melting, in particular to an automatic knife switch device for non-power-off ground wire ice melting. Background Art

[0002] Ice covering the ground wire of overhead transmission lines is extremely detrimental to line operation, and may cause problems such as too small a distance between wires and excessive load on wires, thus causing line failures or even accidents. Therefore, de-icing has become one of the necessary tasks for winter power grid operation and maintenance.

[0003] At present, traditional de-icing work usually needs to be carried out after a power outage. In order to ensure the normal operation and safety of the line, the prior art has proposed a non-stop power-off ice-melting circuit. For example, the invention patent with publication number CN117277192A proposes a ground wire series non-stop power-off ice-melting circuit and an operation method and a short-circuit knife switch used, which avoids the technical problem of line shutdown during ice melting; due to the structural limitations of the short-circuit knife switch provided by the prior art, it is impossible to achieve the precise control requirements for the closing and opening positions, resulting in the closing and opening movements being not smooth enough, and then resulting in insufficient control accuracy of the closing and opening positions; secondly, the existing short-circuit knife switch lacks the visualization function of the opening and closing, and the operation and maintenance personnel cannot see the operating status of the short-circuit knife switch in real time, which increases the uncertainty of operation. Utility Model Content

[0004] The utility model aims to provide an automatic knife switch device for melting ice on ground wires without power outages, so as to solve the problem that the closing and opening position control accuracy of the existing knife switch device is relatively poor.

[0005] To achieve the above-mentioned purpose, the technical solution of the first aspect of the utility model provides an automatic knife switch device for melting ice on a ground wire without power outage, comprising a base, and also comprising a first wiring assembly, a second wiring assembly, a third wiring assembly and a reciprocating mechanism, wherein the first wiring assembly and the second wiring assembly are symmetrically arranged on the top of the base, the first wiring assembly and the second wiring assembly are spaced apart, the third wiring assembly is arranged between the first wiring assembly and the second wiring assembly, the reciprocating mechanism is arranged at the bottom of the third wiring assembly, and the third wiring assembly is slidably connected to the base through the reciprocating mechanism.

[0006] Furthermore, the reciprocating mechanism includes a base plate, a motor and a reciprocating screw. The base plate is arranged in the middle of the base, and the motor is arranged on the top of the base plate close to the side of the first wiring assembly. The output end of the motor is connected to one end of the reciprocating screw, and the other end of the reciprocating screw is fixedly connected to the third wiring assembly.

[0007] Furthermore, the reciprocating mechanism also includes two slide rails arranged on the bottom plate, and the two slide rails are symmetrically arranged on both sides of the reciprocating screw and are slidably connected to the third wiring assembly.

[0008] Furthermore, the first wiring assembly includes a first mounting seat, a first insulator string, a first disc, a first wiring string, a first mounting plate and a first contact, the first mounting seat is fixedly connected to the base, the top of the first mounting seat is sequentially provided with a first insulator string, a first disc, a first wiring string and a first mounting plate, the first insulator string is electrically connected to the first wiring string, and the first contact is provided on a side of the first mounting plate close to the second wiring assembly.

[0009] Furthermore, the first contact includes a mounting base, a clamp and a spring, the mounting base is arranged on the top of the first mounting plate, the clamp is arranged on the outer side of the mounting base, and the spring is arranged on the clamp.

[0010] Furthermore, the third wiring assembly includes a second mounting seat, a slider, a second insulator string, a second disc, a second wiring string, a second mounting plate and a second contact, the second mounting seat is arranged on the base, the bottom of the second mounting seat is slidably connected to the base through the slider, the top of the second mounting seat is sequentially provided with a second insulator string, a second disc, a second wiring string and a second mounting plate, the second insulator string is electrically connected to the second wiring string, and the second contact is arranged on the top of the second mounting plate.

[0011] Furthermore, the second contact includes a connecting plate, and cylinders are symmetrically provided on both sides of the connecting plate, and the cylinders match the first wiring assembly and the second wiring assembly.

[0012] Furthermore, it also includes an image acquisition device, which is arranged on the outside of the second mounting seat and is used to obtain a moving image of the second contact.

[0013] Furthermore, the non-power-off ground wire ice-melting automatic knife switch device also includes a first contact switch and a second contact switch, the first contact switch is electrically connected to the first wiring assembly, and the second contact switch is electrically connected to the second wiring assembly.

[0014] Furthermore, it also includes a routing mechanism, which includes a routing tube and a drag chain, one end of the routing tube is arranged at the bottom of the second mounting plate and passes through the second disc and the second mounting seat, the drag chain is arranged on the outside of the second mounting seat, and one end of the routing tube close to the second mounting seat extends in an arc shape toward the outside of the second mounting seat into the drag chain.

[0015] The beneficial effects of the utility model include:

[0016] 1. The utility model provides an automatic knife switch device for melting ice on ground wires without power outages. By setting a reciprocating mechanism, the reciprocating mechanism is used to drive the third wiring assembly to reciprocate on the base, thereby ensuring that the third wiring assembly can be in good and stable contact with the first wiring assembly and the second wiring assembly, thereby achieving precise control of the closing and opening positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the main structure of the non-stop ground wire ice-melting automatic knife switch device provided by the embodiment of the utility model;

[0019] Figure 2 A rear structural schematic diagram of a non-stop ground wire ice-melting automatic knife switch device provided by an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the first contact of an embodiment of the utility model;

[0021] Icons: 100-base, 200-first wiring assembly, 210-first mounting seat, 220-first insulator string, 230-first disc, 240-first wiring string, 250-first mounting plate, 260-first contact, 261-mounting base, 262-clamp, 263-spring, 300-second wiring assembly, 400-third wiring assembly, 410-second mounting seat, 420-slider, 430-second insulator string , 440-second disc, 450-second terminal string, 460-second mounting plate, 470-second contact, 471-connecting plate, 472-cylinder, 500-reciprocating mechanism, 510-bottom plate, 520-motor, 530-reciprocating screw, 540-slide rail, 600-image acquisition device, 700-wiring mechanism, 710-wiring tube, 720-drag chain, 800-first contact switch, 900-second contact switch. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] See also Figures 1 to 3 As shown, at least one embodiment of the present disclosure provides an automatic knife switch device for melting ice on a ground wire without power outages, comprising a base 100, and also comprising a first wiring assembly 200, a second wiring assembly 300, a third wiring assembly 400 and a reciprocating mechanism 500, wherein the first wiring assembly 200 and the second wiring assembly 300 are symmetrically arranged on the top of the base 100, the first wiring assembly 200 and the second wiring assembly 300 are arranged at intervals, the third wiring assembly 400 is arranged between the first wiring assembly 200 and the second wiring assembly 300, the reciprocating mechanism 500 is arranged at the bottom of the third wiring assembly 400, and the third wiring assembly 400 is arranged at the bottom of the third wiring assembly 400. The wire assembly 400 is slidably connected to the base 100 through a reciprocating mechanism 500; specifically, the first wiring assembly 200 and the second wiring assembly 300 are of the same structural design. In actual use, the first wiring assembly 200 and the second wiring assembly 300 are respectively used to realize the functions of opening and closing the switch; by setting up a reciprocating mechanism 500, the reciprocating mechanism 500 is used to drive the third wiring assembly 400 to reciprocate on the base 100, ensuring that the third wiring assembly 400 can be well and smoothly in contact with the first wiring assembly 200 and the second wiring assembly 300, thereby realizing precise control of the closing and opening positions.

[0025] Preferably, the reciprocating mechanism 500 includes a base plate 510, a motor 520 and a reciprocating screw 530, the base plate 510 is arranged in the middle of the base 100, the motor 520 is arranged on the top of the base plate 510 near the side of the first wiring assembly 200, the output end of the motor 520 is connected to one end of the reciprocating screw 530, and the other end of the reciprocating screw is fixedly connected to the third wiring assembly 400, and the reciprocating mechanism 500 also includes two slide rails 540 arranged on the base plate 510, the two slide rails 540 are symmetrically arranged on both sides of the reciprocating screw 530 and are slidably connected to the third wiring assembly 400; the base plate 510 is arranged in the middle of the base 100, providing a stable support platform, so that the movement of the entire reciprocating mechanism 500 is more stable and reliable; the design of the slide rail 540 makes the movement of the third wiring assembly 400 smoother, reduces friction, and improves operating efficiency and precision.

[0026] Preferably, the first wiring assembly 200 includes a first mounting seat 210, a first insulator string 220, a first disc 230, a first wiring string 240, a first mounting plate 250 and a first contact 260. The first mounting seat 210 is fixedly connected to the base 100. The top of the first mounting seat 210 is provided with the first insulator string 220, the first disc 230, the first wiring string 240 and the first mounting plate 250 in sequence. The first insulator string 220 is electrically connected to the first wiring string 240. The first contact 260 is provided on the first mounting seat 210. The plate 250 is close to one side of the second wiring assembly 300; it should be noted that the second wiring assembly 300 and the first wiring assembly 200 have the same structural configuration; specifically, the first disc 230 is provided with a through hole matching the first wiring substring 240 and the first insulator string 220; the first insulator string 220 is used to separate the high-voltage side and the low-voltage side of the device; the electrical connection between the first insulator string 220 and the first wiring substring 240 is used to ensure the isolation of the wires between the high-voltage side and the low-voltage side, so as to prevent abnormal operation or accidents of the device due to electrical short circuit or leakage.

[0027] Preferably, the first contact 260 includes a mounting base 261, a clamp 262 and a spring 263, the mounting base 261 is arranged on the top of the first mounting plate 250, the clamp 262 is arranged on the outside of the mounting base 261, and the spring 263 is arranged on the clamp 262; specifically, the mounting base 261 is fixedly connected to the first mounting plate 250, and the clamp 262 is preferably U-shaped and has an elastic structure. When the second contact 470 on the third wiring assembly 400 is embedded in the clamp 262, the second contact 470 will open the clamp 262 and clamp the second contact 470 under the action of the spring 263, thereby ensuring good contact between the second contact 470 and the first contact 260, and reliable passage of large current, which can effectively avoid electrical faults or short circuits caused by poor contact or looseness, and reduce the occurrence rate of equipment working failures. This structural design is simple and practical, easy to maintain and operate, and provides important guarantees for the stable operation and long-term use of the knife switch device.

[0028] Preferably, the third wiring assembly 400 includes a second mounting seat 410, a slider 420, a second insulator string 430, a second disc 440, a second wiring string 450, a second mounting plate 460 and a second contact 470. The second mounting seat 410 is arranged on the base 100. The bottom of the second mounting seat 410 is slidably connected to the base 100 through the slider 420. The top of the second mounting seat 410 is sequentially provided with a second insulator string 430, a second disc 440, a second wiring string 450 and a second mounting plate 460. The second insulator string 430 is electrically connected to the second wiring string 450. The second contact 470 is arranged on the top of the second mounting plate 460.

[0029] Preferably, the second contact 470 includes a connecting plate 471, and cylinders 472 are symmetrically provided on both sides of the connecting plate 471, and the cylinders 472 match the first wiring assembly 200 and the second wiring assembly 300; specifically, the cylinder 472 structure has good mechanical stability and wear resistance, which can effectively ensure good contact between the second contact 470 and the clamp 262, thereby improving the transmission efficiency and reliability of the knife switch device; the symmetrical design of the cylinder 472 helps to balance the connection force, so that the force between the second contact 470 and each wiring assembly is more uniform, effectively reducing the concentration of local stress and extending the service life. In addition, the matching design of the cylinder 472 can ensure the close connection between the second contact 470 and the wiring assembly, reduce contact resistance, improve contact performance, reduce energy loss when transmitting current, and further improve the transmission efficiency of the knife switch device.

[0030] Preferably, an image acquisition device 600 is further included, and the image acquisition device 600 is arranged on the outside of the second mounting seat 410. The image acquisition device 600 is used to obtain a moving image of the second contact 470. Specifically, the image acquisition device 600 is preferably a camera. By obtaining the moving image of the second contact 470 through the image acquisition device 600, a visual analysis of the position of the second contact 470 can be achieved, thereby reducing the occurrence of unexpected failures and ensuring the normal operation and safe use of the equipment.

[0031] Preferably, the non-stop ground wire ice-melting automatic knife switch device also includes a first contact switch 800 and a second contact switch 900, wherein the first contact switch 800 is electrically connected to the first wiring assembly 200, and the second contact switch 900 is electrically connected to the second wiring assembly 300; specifically, the first contact switch 800 and the second contact switch 900 are used to cooperate with the reciprocating movement mechanism 500 to realize the judgment of the contact position, thereby improving the accuracy of the contact position control, and thus realizing the opening and closing functions; through these two contact switches, the contact position can be monitored and judged, and when the contact moves to a specific position, the contact switch will send a signal to judge the position of the contact, thereby realizing the control and adjustment of the contact position.

[0032] Preferably, it also includes a wiring mechanism 700, which includes a wiring tube 710 and a drag chain 720, one end of the wiring tube 710 is arranged at the bottom of the second mounting plate 460 and passes through the second disc 440 and the second mounting seat 410, the drag chain 720 is arranged on the outside of the second mounting seat 410, and one end of the wiring tube 710 close to the second mounting seat 410 extends in an arc shape toward the outside of the second mounting seat 410 to the inside of the drag chain 720; specifically, the drag chain 720 is used to ensure that the wiring tube 710 is always inside the drag chain 720 when the wiring tube 710 moves, thereby playing a limiting function on the wiring tube 710, thereby avoiding the wiring tube 710 from being unsmooth due to swinging or external interference, thereby ensuring a smooth and stable wiring process.

[0033] In addition to the above description, there are a few points to note:

[0034] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure, and other structures may refer to the general design;

[0035] (2) The control programs of the motors, switches, etc. in the present disclosure are all mature conventional technologies in the prior art. Those skilled in the art can realize the application of the present utility model based on the principles of the same functions in the prior art. The program part is not the innovative point of the present utility model;

[0036] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An automatic switch device for melting ice on ground wires without power outages, comprising a base (100), characterized in that: The invention also comprises a first wiring assembly (200), a second wiring assembly (300), a third wiring assembly (400) and a reciprocating mechanism (500), wherein the first wiring assembly (200) and the second wiring assembly (300) are symmetrically arranged on the top of the base (100), the first wiring assembly (200) and the second wiring assembly (300) are arranged at intervals, the third wiring assembly (400) is arranged between the first wiring assembly (200) and the second wiring assembly (300), the reciprocating mechanism (500) is arranged at the bottom of the third wiring assembly (400), and the third wiring assembly (400) is slidably connected to the base (100) via the reciprocating mechanism (500).

2. The automatic knife switch device for melting ice on ground wire without power outage according to claim 1 is characterized in that: The reciprocating mechanism (500) comprises a base plate (510), a motor (520) and a reciprocating screw (530); the base plate (510) is arranged in the middle of the base (100); the motor (520) is arranged on the top of the base plate (510) and close to the first wiring assembly (200); the output end of the motor (520) is connected to one end of the reciprocating screw (530); and the other end of the reciprocating screw is fixedly connected to the third wiring assembly (400).

3. The automatic knife switch device for melting ice on ground wire without power outage according to claim 2 is characterized in that: The reciprocating mechanism (500) further comprises two slide rails (540) arranged on the bottom plate (510); the two slide rails (540) are symmetrically arranged on both sides of the reciprocating screw (530) and are slidably connected to the third wiring assembly (400).

4. The automatic knife switch device for melting ice on ground wire without power outage according to claim 1 is characterized in that: The first wiring assembly (200) comprises a first mounting seat (210), a first insulator string (220), a first disc (230), a first wiring string (240), a first mounting plate (250) and a first contact (260); the first mounting seat (210) is fixedly connected to the base (100); the first insulator string (220), the first disc (230), the first wiring string (240) and the first mounting plate (250) are arranged on the top of the first mounting seat (210) in sequence; the first insulator string (220) is electrically connected to the first wiring string (240); and the first contact (260) is arranged on a side of the first mounting plate (250) close to the second wiring assembly (300).

5. The automatic knife switch device for melting ice on ground wire without power outage according to claim 4 is characterized in that: The first contact (260) comprises a mounting base (261), a clamp (262) and a spring (263); the mounting base (261) is arranged on the top of the first mounting plate (250); the clamp (262) is arranged on the outer side of the mounting base (261); and the spring (263) is arranged on the clamp (262).

6. The automatic knife switch device for melting ice on ground wire without power outage according to any one of claims 1 to 5, characterized in that: The third wiring assembly (400) comprises a second mounting seat (410), a slider (420), a second insulator string (430), a second disc (440), a second wiring string (450), a second mounting plate (460) and a second contact (470); the second mounting seat (410) is arranged on the base (100); the bottom of the second mounting seat (410) is slidably connected to the base (100) via the slider (420); the top of the second mounting seat (410) is provided with a second insulator string (430), a second disc (440), a second wiring string (450) and a second mounting plate (460) in sequence; the second insulator string (430) is electrically connected to the second wiring string (450); and the second contact (470) is arranged on the top of the second mounting plate (460).

7. The automatic knife switch device for melting ice on ground wire without power outage according to claim 6 is characterized in that: The second contact (470) comprises a connecting plate (471), and cylinders (472) are symmetrically provided on both sides of the connecting plate (471), and the cylinders (472) match the first wiring assembly (200) and the second wiring assembly (300).

8. The automatic knife switch device for melting ice on ground wire without power outage according to claim 6 is characterized in that: It also includes an image acquisition device (600), which is arranged outside the second mounting seat (410) and is used to acquire a moving image of the second contact (470).

9. The automatic knife switch device for melting ice on ground wire without power outage according to claim 8 is characterized in that: The non-power-off ground wire ice-melting automatic knife switch device also includes a first contact switch (800) and a second contact switch (900), wherein the first contact switch (800) is electrically connected to the first wiring assembly (200), and the second contact switch (900) is electrically connected to the second wiring assembly (300).

10. The automatic knife switch device for melting ice on ground wire without power outage according to claim 9, characterized in that: The invention also includes a wiring mechanism (700), wherein the wiring mechanism (700) includes a wiring tube (710) and a drag chain (720), wherein one end of the wiring tube (710) is arranged at the bottom of the second mounting plate (460) and passes through the second disc (440) and the second mounting seat (410), and the drag chain (720) is arranged on the outer side of the second mounting seat (410), and one end of the wiring tube (710) close to the second mounting seat (410) extends in an arc shape toward the outer side of the second mounting seat (410) and into the drag chain (720).

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