A bypass device for replacing high-voltage drop-out fuses under power and load

Abstract

The present invention discloses a bypass device for replacing a high-voltage drop-out fuse under power and load, comprising a switch unit, wherein the switch unit comprises an upper conductor and a lower conductor, wherein the upper conductor is in movable contact with the lower conductor; and an insulating assembly, wherein the insulating assembly comprises upper and lower connecting sliders, a baffle, and an insulating cylinder, wherein the upper and lower connecting sliders are sleeved on the switch unit, the insulating cylinder is sleeved on the upper and lower connecting sliders, and the baffle is arranged on the outside of the insulating cylinder. The bypass device for replacing a high-voltage drop-out fuse under power and load of the present invention can eliminate the safety hazard of the operator when a flexible cable is used to disconnect and connect the drain line under power and load when replacing the drop-out fuse under power and load; it can make the stress point of the drain line not on the main line, reduce the stress on the main line, and be stable and reliable; it can continue to supply power to the distribution transformer as a temporary high-voltage load fuse, thereby achieving zero-perception and non-stop maintenance for users.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical devices, and in particular to a bypass device for replacing a high-voltage drop-out fuse under power and load. Background Art

[0002] High-voltage drop-out fuses consist of three main parts: a porcelain insulator, a locking mechanism, and a fuse tube. They are typically installed on power transmission and distribution equipment at a certain height above the ground. Operators are required to disconnect the power supply when performing operations such as opening and closing the high-voltage drop-out fuse or replacing the fuse tube. Currently, flexible shunt cables are used to divert current when replacing drop-out fuses under power and load during live operations. However, this process results in one side of the cable being connected (removed) while the other side is connected (removed) under power and load, posing a significant safety hazard when disconnecting and connecting the leads under power and load. Traditional bypass operations lack dedicated bypass devices specifically designed for replacing high-voltage drop-out fuses on a single distribution transformer, and traditional bypass equipment is relatively large, placing high demands on both the construction site and the location. The workload is large, and the lower drain wire is too small to bear the weight of the flexible cable, making bypass operations for replacing high-voltage drop-out fuses under power and load impossible. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the invention.

[0004] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that the existing live working device for replacing high-voltage drop-type fuses under power and load and bypassing the live working device poses a great safety hazard to the operator and is prone to electric shock; it is impossible to replace the high-voltage drop-type fuse for a single distribution transformer; and the workload is large, and the cable length cannot be flexibly switched in different working scenarios, and the weight of the flexible cable cannot be carried.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a bypass device for replacing a high-voltage drop-out fuse under power and load, characterized in that it includes:

[0007] A switch unit, the switch unit comprising an upper conductor and a lower conductor, the upper conductor being in movable contact with the lower conductor;

[0008] The insulating component includes upper and lower connecting sliders, a baffle and an insulating cylinder. The upper and lower connecting sliders are outer sleeves of the switch unit, the insulating cylinder is outer sleeves of the upper and lower connecting sliders, and the baffle is arranged on the outside of the insulating cylinder.

[0009] As a preferred solution of the bypass device for replacing high-voltage drop-out fuses under power and load as described in the present invention, the switch unit also includes a spring, the lower conductor part is sleeved inside the spring, one end of the spring is fixed on the lower conductor, and the other end is fixed to the upper and lower connecting sliders.

[0010] As a preferred solution of the bypass device for replacing high-voltage drop-out fuses under power and load as described in the present invention, a first slide groove is also provided on the insulating cylinder, a handle is fixedly provided on the baffle, one end of the handle passes through the first slide groove and is built into the insulating cylinder, and the upper and lower connecting sliders are fixedly provided on the built-in end part of the handle.

[0011] As a preferred solution of the bypass device for replacing a high-voltage drop-out fuse under power and load according to the present invention, a clamping piece is provided on the insulating cylinder, and the clamping piece is fixedly connected to one side of the insulating cylinder.

[0012] As a preferred solution of the bypass device for replacing high-voltage drop-out fuses under power and load as described in the present invention, a second slide groove and a third slide groove are also provided on the insulating cylinder, the second slide groove is connected to one end of the first slide groove, and the third slide groove is connected to the other end of the first slide groove.

[0013] As a preferred solution of the bypass device for replacing the high-voltage drop-out fuse under power and load as described in the present invention, it also includes a wire clamp, a lower drain line, a power connection connector and an upper drain line, one end of the lower drain line is connected to the wire clamp, and one end of the upper drain line is connected to the power connection connector.

[0014] As a preferred solution of the bypass device for replacing a high-voltage drop-out fuse under power and load according to the present invention, the other end of the lower drain line is connected to the lower conductor, and the other end of the upper drain line is connected to the upper conductor.

[0015] As a preferred solution of the bypass device for replacing high-voltage drop-out fuses under power and load described in the present invention, it also includes a quick connector, one end of which is provided with a mounting plug and the other end is connected to the upper drain line.

[0016] As a preferred solution of the bypass device for replacing high-voltage drop-out fuses under power and load described in the present invention, one end of the power connection is provided with a hook, and the other end is provided with a mounting groove, and the mounting plug can be connected to the mounting groove.

[0017] The beneficial effects of the present invention are as follows: the bypass device for replacing high-voltage drop-out fuses under power and load of the present invention can eliminate the safety hazards of operators when using flexible cables to disconnect and connect the drainage lines under power and load when replacing the drop-out fuses under power and load; it can make the stress point of the drainage line not on the main line, reduce the stress on the main line, and make it stable and reliable; it can serve as a temporary high-voltage load fuse for the distribution transformer to continue to supply power to the distribution transformer, thereby achieving zero-perception and non-power-off maintenance for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0019] Figure 1 A schematic diagram of the overall structure of a bypass device for live and load replacement of a high-voltage drop-out fuse according to an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of a switch unit in a bypass device for live and load replacement of a high-voltage drop-out fuse according to an embodiment of the present invention;

[0021] Figure 3 A schematic cross-sectional view of an insulating component in a bypass device for live and load replacement of a high-voltage drop-out fuse according to an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the structure of an insulating cylinder in a bypass device for live and load replacement of a high-voltage drop-out fuse according to an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the quick connector structure in a bypass device for replacing a high-voltage drop-out fuse under power and load according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, these schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0027] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figure 1-4 This embodiment provides a bypass device for replacing a high-voltage drop-out fuse under power and load, comprising:

[0030] The switch unit 100 includes an upper conductor 101 and a lower conductor 102 , wherein the upper conductor 101 is in movable contact with the lower conductor 102 ;

[0031] The insulating assembly 200 includes upper and lower connecting sliders 201 , a baffle 202 and an insulating cylinder 203 . The upper and lower connecting sliders 201 are jacketed on the switch unit 100 , the insulating cylinder 203 is jacketed on the upper and lower connecting sliders 201 , and the baffle 202 is arranged on the outside of the insulating cylinder 203 .

[0032] Furthermore, the switch unit 100 further includes a spring 103 , in which the lower conductor 102 is partially sheathed. One end of the spring 103 is fixed to the lower conductor 102 , and the other end is fixed to the upper and lower connecting sliders 201 .

[0033] It should be noted that the upper conductor 101 can be fixed to one end of the insulating tube 203 by bolts. Specifically, the upper conductor 101 is cylindrical with two thick and thin sections. The tail section is thicker and 82 mm long and is fixed to one end of the insulating tube 203. The front section is thinner and 50 mm long and can be built into the upper and lower connecting sliders 201. The tail section has a mounting hole to facilitate the subsequent installation of the upper drain wire.

[0034] It should be noted that the lower conductor 102 is in a movable state. Specifically, the lower conductor 102 is also in the shape of a cylinder with two thick and thin sections. The front section is a thin cylinder with a length of 203 mm, and the tail section is a thick cylinder with a length of 65 mm. The spring 103 is sheathed on the thin cylinder of the front section, and one end of the spring 103 is fixed to the cross-section at the intersection of the front and rear sections of the lower conductor 102, and the other end is fixed to the upper and lower connecting sliders 201.

[0035] It should be noted that the upper and lower connecting sliders 201 are specifically divided into two parts, wherein the upper part has a smaller internal diameter and is used to sleeve the upper conductor, and the lower part has a larger internal diameter than the upper part and is used to fix the spring 103 and sleeve the lower conductor 103. Specifically, the upper and lower connecting sliders 201 are made of insulating material.

[0036] Furthermore, a first slide groove 203a is provided on the insulating cylinder 203, and a handle 202a is fixedly provided on the baffle 202. One end of the handle 202a passes through the first slide groove 203a and is built into the insulating cylinder 203. The built-in end of the handle 202a is fixedly provided with an upper and lower connecting slider 201.

[0037] It should be noted that a first slide groove 203a is provided on the insulating tube 203, and the exposed end of the handle 202a is cylindrical and fixedly welded with a baffle 202, which is convenient for the operator to hold; the other end is flat, which is convenient for passing through the first slide groove 203a. At the same time, this end is fixed with upper and lower connecting sliders 201 by bolts, and the first slide groove 203a is flat and vertical, which is convenient for one end of the handle to slide up and down.

[0038] Furthermore, a second slide groove 203b and a third slide groove 203c are further provided on the insulating tube 203. The second slide groove 203b is connected to one end of the first slide groove 203a, and the third slide groove 203c is connected to the other end of the first slide groove 203a.

[0039] It should be noted that the second sliding groove 203b and the third sliding groove 203c are both vertically arranged at both ends of the first sliding groove 203a, are relatively short, and are mainly used to position and fix the handle 203a.

[0040] When in use, the upper conductor 101 and the lower conductor 102 have two states: open and closed.

[0041] When separating, the operator holds one cylindrical end of the handle 202a and moves it downward along the first slide groove 203a. At this time, the baffle 202 fixed on the handle 202a moves downward, and at the same time, the upper and lower connecting sliders 201 fixed to the other end of the handle 202a move downward. Since one end of the spring 103 is connected to the upper and lower connecting sliders 201 and the other end is connected to the lower conductor 102, when the upper and lower connecting sliders 201 move downward, the spring 103 is compressed, thereby causing the lower conductor 102 connected to the spring 103 to move downward until the handle 202a slides to the bottom of the first slide groove 203a, the circuit is disconnected, and the handle 202a is then slid to the third slide groove 203c for fixation.

[0042] When closing, the operator holds one cylindrical end of the handle 202a and lifts it upward along the first slide groove 203a. At this time, the baffle 202 fixed on the handle 202a follows and moves upward, and at the same time, the upper and lower connecting sliders 201 fixed at the other end of the handle 202a move upward at the same time. Since one end of the spring 103 is connected to the upper and lower connecting sliders 201 and the other end is connected to the lower conductor 102, when the upper and lower connecting sliders 201 move upward, the spring 103 is driven to rebound, thereby causing the lower conductor 102 connected to the spring 103 to move upward until the upper and lower connecting sliders 201 are against the upper conductor 101. At this time, the end face of the lower conductor 102 contacts the end face of the upper conductor 101, so that the entire circuit is connected. At this time, the handle 202a slides to the upper end of the first slide groove 203a and slides it to the second slide groove 203b for fixation.

[0043] Specifically, the baffle and the handle are both made of insulating materials. During the entire opening and closing process, the handle 202a must move up and down in the first slide groove 203a opened on the insulating tube 203. The baffle 202 first plays a protective insulation role. Since the insulating tube 203 has a slide groove, in order to prevent leakage, the upper and lower connecting sliders 201 are added to further prevent leakage insulation. At the same time, the upper and lower connecting sliders 201 can move up and down through the handle 202a, and the connected spring 103 drives the lower conductor 102 to move synchronously to achieve the power on and off effect.

[0044] Example 2

[0045] Reference Figure 1-3 Based on the previous embodiment, this embodiment provides a bypass device for replacing a high-voltage drop-out fuse under power and load, comprising:

[0046] The switch unit 100 includes an upper conductor 101 and a lower conductor 102 , wherein the upper conductor 101 is in movable contact with the lower conductor 102 ;

[0047] The insulating assembly 200 includes upper and lower connecting sliders 201 , a baffle 202 and an insulating cylinder 203 . The upper and lower connecting sliders 201 are jacketed on the switch unit 100 , the insulating cylinder 203 is jacketed on the upper and lower connecting sliders 201 , and the baffle 202 is arranged on the outside of the insulating cylinder 203 .

[0048] Furthermore, the switch unit 100 further includes a spring 103 , in which the lower conductor 102 is partially sheathed. One end of the spring 103 is fixed to the lower conductor 102 , and the other end is fixed to the upper and lower connecting sliders 201 .

[0049] Furthermore, a clamping member 300 is provided on the insulating cylinder 203 , and the clamping member 300 is fixedly connected to one side of the insulating cylinder 203 .

[0050] It should be noted that the clamping member 300 is fixed to the middle of the side of the insulating tube 203, and its clamping head is equipped with a bolt for clamping. The clamping member 300 mainly functions to fix the entire position of the insulating tube 203. When in use, the clamping member 300 is clamped to the crossarm of the utility pole, which makes the insulating tube 203 vertical and fixes the position of the insulating tube 203. This disperses the excessive force when the cable is suspended in the air and solves the problem of unstable center of gravity.

[0051] Specifically, holes that match the upper and lower drainage wires are opened on the upper and lower sides of the insulating tube 203. After the lower drainage wire 401 is connected to the lower conductor 102 by bolts, it extends through the holes on the insulating tube 203. The upper drainage wire 501 is connected in the same way and passes through the insulating tube 203.

[0052] Furthermore, it also includes a wire clamp 400, a lower drain wire 401, a power connector 500 and an upper drain wire 501, one end of the lower drain wire 401 is connected to the wire clamp 400, and one end of the upper drain wire 501 is connected to the power connector 500.

[0053] Furthermore, the other end of the lower drain line 401 is connected to the lower conductor 102 , and the other end of the upper drain line 501 is connected to the upper conductor 101 .

[0054] Furthermore, a hook 500 a is provided at one end of the power connector 500 .

[0055] It should be noted that the lower drain line 401 is connected to the wire clamp 400, which is fixed to the cable at the lower end of the transformer by bolts, and the upper drain line 501 is connected to the power connector 500, which is hung on the cable by a hook 500a.

[0056] During use, the operator first places the opening and closing unit 100 in the open state. At this time, the upper and lower conductors are separated and cannot be energized. Then the clamping part 300 is fixed on the cross arm of the utility pole so that the force point of the entire device is supported. Then the power connector of the upper drainage end is hung on the cable, and then the wire clamp of the lower drainage end is fixed to the cable. After the operator has fixed everything, the operator moves the handle 202a to move the lower conductor 102 up until it contacts the upper conductor 101 and then fixes it to achieve the effect of bypass power supply. There is no threat of leakage during the installation process of the operator. After the bypass is energized, the operator can replace the high-voltage drop-out fuse, achieving zero-perception replacement for the user.

[0057] Example 3

[0058] Reference Figure 1 、 5 Based on the previous embodiment, this embodiment provides a bypass device for replacing a high-voltage drop-out fuse under power and load, comprising:

[0059] The switch unit 100 includes an upper conductor 101 and a lower conductor 102 , wherein the upper conductor 101 is in movable contact with the lower conductor 102 ;

[0060] The insulating assembly 200 includes upper and lower connecting sliders 201 , a baffle 202 and an insulating cylinder 203 . The upper and lower connecting sliders 201 are jacketed on the switch unit 100 , the insulating cylinder 203 is jacketed on the upper and lower connecting sliders 201 , and the baffle 202 is arranged on the outside of the insulating cylinder 203 .

[0061] Furthermore, the switch unit 100 further includes a spring 103 , in which the lower conductor 102 is partially sheathed. One end of the spring 103 is fixed to the lower conductor 102 , and the other end is fixed to the upper and lower connecting sliders 201 .

[0062] Furthermore, a quick connector 600 is further included. One end of the quick connector 600 is provided with a mounting plug 601 , and the other end is connectable to the upper drainage line 501 .

[0063] Furthermore, a hook 500a is provided at one end of the power connector 500, and a mounting groove 500b is provided at the other end, and the mounting plug 601 can be connected to the mounting groove 500b.

[0064] It should be noted that due to the complex environment in actual installation operations, in order to make the device flexible in use and adapt to operations in different scenarios, a quick connector 600 with the function of extending the upper drain line is also provided. When in use, the installation plug 601 on the quick connector 600 can be inserted into the installation slot 500b on the power connector 500, and the upper drain line 501 is connected to the quick connector 600, so that in different operating scenarios, there is no need to use an overly long lead, which simplifies the fixing operation of the overly long lead. At the same time, if a longer drain line is simply selected, the drain line will be too long and inconvenient to operate and fix. If the drain line is too long, the lead cable needs to be coiled, but the cable coiling will cause the cable to heat up, increase the electrical impedance, etc., thereby affecting installation and disassembly. The entire device can replace the bypass device of the high-voltage drop-out fuse for a single distribution transformer while ensuring the safety of the operator. It is fast and efficient, and the user is aware of it.

[0065] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0066] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0067] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A bypass device for replacing a high-voltage drop-out fuse under power and load, characterized by: include, A switch unit (100), the switch unit (100) comprising an upper conductor (101) and a lower conductor (102), the upper conductor (101) being in movable contact with the lower conductor (102); An insulating assembly (200), the insulating assembly (200) comprising upper and lower connecting sliders (201), a baffle (202) and an insulating cylinder (203), the upper and lower connecting sliders (201) being sheathed on the switch unit (100), the insulating cylinder (203) being sheathed on the upper and lower connecting sliders (201), and the baffle (202) being arranged on the outside of the insulating cylinder (203); The upper conductor (101) is cylindrical with two thick and thin sections, the tail section being thicker and fixed to one end of the insulating tube (203); the front section being thinner and built into the interior of the upper and lower connecting sliders (201); The switch unit (100) further includes a spring (103), wherein the lower conductor (102) is partially sheathed in the spring (103), and one end of the spring (103) is fixed to the lower conductor (102), and the other end is fixed to the upper and lower connecting sliders (201); The insulating cylinder (203) is further provided with a first sliding groove (203a), the baffle (202) is fixedly provided with a handle (202a), one end of the handle (202a) passes through the first sliding groove (203a) and is built into the insulating cylinder (203), and the upper and lower connecting sliders (201) are fixedly provided on the built-in end portion of the handle (202a); The insulating cylinder (203) is further provided with a second slide groove (203b) and a third slide groove (203c), wherein the second slide groove (203b) is connected to one end of the first slide groove (203a), and the third slide groove (203c) is connected to the other end of the first slide groove (203a).

2. The bypass device for replacing a high-voltage drop-out fuse under power and load according to claim 1 is characterized in that: A clamping piece (300) is provided on the insulating cylinder (203), and the clamping piece (300) is fixedly connected to one side of the insulating cylinder (203).

3. The bypass device for replacing a high-voltage drop-out fuse under power and load according to claim 2, characterized in that: It also includes a wire clamp (400), a lower drain wire (401), a power connector (500) and an upper drain wire (501), wherein one end of the lower drain wire (401) is connected to the wire clamp (400), and one end of the upper drain wire (501) is connected to the power connector (500).

4. The bypass device for hot-swapped, on-load replacement of a high-voltage drop-out fuse according to claim 3, characterized in that: The other end of the lower drain line (401) is connected to the lower conductor (102), and the other end of the upper drain line (501) is connected to the upper conductor (101).

5. The bypass device for replacing a high-voltage drop-out fuse under power and load according to claim 4, characterized in that: It also includes a quick connector (600), one end of which is provided with a mounting plug (601), and the other end of which is connectable to an upper drainage line (501).

6. The bypass device for replacing a high-voltage drop-out fuse under power and load according to claim 5, characterized in that: One end of the power connection connector (500) is provided with a hook (500a), and the other end is provided with a mounting groove (500b), and the mounting plug (601) can be connected to the mounting groove (500b).

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