Safety anti-error isolation tool for relay protection secondary equipment

Abstract

The invention belongs to the field of relay protection secondary equipment maintenance, and discloses a safety anti-error isolation tool for relay protection secondary equipment. A mechanical coil spring structure is used for adjusting the length of the isolation belt, the requirement for isolation of relay protection secondary equipment in different scenes is met, the isolation belt comprises a storage part, an isolation part and a fixing part, the storage part takes a shell as a main body, a mechanical part and a storage isolation part are arranged in the storage part, and the isolation part is composed of the isolation belt and isolation characters on the isolation belt; connecting parts are arranged on the two sides of the shell, holes are formed in one sides of the connecting parts and connected with fixing parts on the outer side, and each fixing part comprises a detachable shell and a magnetic attraction part. The method is used for solving the problem that time and labor are wasted when relay protection secondary equipment safety anti-error isolation measures are arranged, economic cost can be reduced, and personal safety and equipment safety can be effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of maintenance of relay protection secondary equipment, and in particular to a safety and error-proof isolation tool for relay protection secondary equipment. Background Art

[0002] With the advancement of grid automation, various secondary equipment, such as relay protection devices and integrated automation systems, are becoming widely used in substations. As a crucial secondary device, relay protection devices protect the power system and its components (generators, transformers, transmission lines, busbars, etc.) from damage. Their safe operation is directly related to the safe operation of the grid and, ultimately, the power system.

[0003] Secondary equipment, such as relay protection devices, is characterized by its large number, compact size, multiple bays operating on the same panel, and complex secondary circuits. When overhauling relay protection panels, there are risks of accidental contact, missetting, or miswiring of secondary equipment operating on the same panel. These risks can lead to malfunction or failure of protection, resulting in serious power grid accidents and significant economic losses. Therefore, it is particularly important to implement isolation and protective measures for secondary equipment not relevant to the maintenance work.

[0004] Existing secondary error-proofing isolation measures typically involve isolating secondary equipment unrelated to maintenance work by setting up fences, hanging red curtains, or displaying warning signs. Currently, due to the complex and numerous types of secondary equipment and the inflexible nature of isolation tools, the deployment of secondary error-proofing isolation measures for maintenance work is time-consuming, seriously impacting on-site work efficiency. Therefore, developing a convenient, efficient, and flexible secondary error-proofing isolation device is an urgent secondary error-proofing safety challenge.

[0005] In order to solve the above problems, people have been seeking an ideal technical solution.

[0006] CN109921323A discloses an isolation device for protective screen running equipment, comprising a flexible shielding layer, a reel main rod and a reel auxiliary rod respectively arranged on the left and right sides of the flexible shielding layer, the reel main rod and the reel auxiliary rod being hollow rods, a plurality of magnet strips being bonded to the inside of the two hollow rods; a rotating shaft rod is arranged inside the reel main rod, a long hole is provided on the side wall of the reel main rod, and one side edge of the flexible shielding layer is fixed to the rotating shaft rod through the long hole; support rods are respectively provided at both ends of the rotating shaft rod, an arc-shaped piece perpendicular to the support rod is provided at the outer end of the support rod, a circumferential guide rail adapted to the arc-shaped piece is provided on the inner wall of the reel main rod, and the arc-shaped piece extends into the circumferential guide rail; a sealing cover is provided at both ends of the reel main rod, the sealing cover corresponds to the opening of the rotating shaft rod, and the two ends of the rotating shaft rod pass through the sealing cover and are provided The cam is configured to have a first end fixed to the side panel that is located adjacent to the first end of the shaft and a second end of the shaft connected to the first end of the shaft to form a circle around the cam.

[0007] CN216110045U discloses an isolation device for protective screen running equipment; it includes a winding box, a connecting box and an isolation curtain, an axle rod is provided inside the winding box, a sleeve is provided at the bottom of the winding box, the axle rod passes through the sleeve and is rotatably connected with it, a ratchet is provided on the top of the winding box, the ratchet is connected to a tightening ratchet, the axle rod is clamped with the tightening ratchet through a panel provided thereon, and the top end of the axle rod is threadedly connected to a top cap; one end of the isolation curtain is fixedly connected to the axle rod, and the other end passes through the isolation curtain outlet provided on the winding box and is connected to a plug-in part; the plug-in part includes a locking plate, a splint is provided on one side of the locking plate, and a plug connector is provided on the other side; an insertion port is provided on the side wall panel of the connecting box, a limit plug-in plate is provided inside the connecting box, a card interface is provided on the limit plug-in plate, and an upper limit plate, a lower limit plate and a compression spring are provided on the upper part of the limit plug-in plate; the utility model can effectively isolate the running equipment in the screen, improve the error prevention rate, and reduce the hidden dangers of accidental collision.

[0008] However, the above-mentioned prior art has problems such as complex structure, inconvenient to carry and use, need to improve the structural firmness, and easy to slip. Summary of the Invention

[0009] The purpose of the present invention is to provide a safety and error-proof isolation tool for relay protection secondary equipment in view of the deficiencies in the prior art.

[0010] In order to achieve the above object, the technical solution adopted by the present invention is: A safety and error-proof isolation tool for relay protection secondary equipment, characterized in that it comprises a receiving part, an isolation part and a fixing part; the fixing part comprises a magnetic part and a fixing body, and the isolation part is composed of an isolation belt; the receiving part is composed of a mechanical part, a connecting part and an outer shell part, the outer shell part is a hollow combination of a semi-cylindrical upper part and a rectangular lower part, a mechanical part is arranged inside the outer shell part, a plurality of magnet strips are bonded to the inner wall of the outer shell part, a long hole is opened on the two corresponding side walls of the rectangular outer shell part, a connecting part is provided on the surface of the outer shell part outside the long hole, the connecting part has a connecting hole that allows the isolation belt to pass through, and the connecting hole is connected to the long hole; the mechanical part has a winding component, The outer end of the coiled component is fixed to the other end of the isolation belt, and the coiled component can be spirally retracted and wound; one end of the isolation belt is fixed to the fixed part, and the other end of the isolation belt is fixed to the mechanical part of the storage part after passing through a connecting hole and a long hole. A warning slogan is sprayed on the surface of the isolation belt facing the rectangular parallelepiped; when in use, the isolation part is unfolded, and the fixed part is attracted to the protective screen operating equipment through the magnetic part; when folded, the mechanical part is rotated to retract the isolation part.

[0011] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that the connecting part is located on two corresponding side walls of the rectangular parallelepiped of the hollow assembly.

[0012] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that: the mechanical part also has a shaft, the upper end of the shaft passes through the upper wall of the hollow assembly, and the lower end of the shaft is fixed on the inner wall of the lower wall of the hollow assembly; or, the upper end of the shaft is fixed on the inner wall of the upper wall of the hollow assembly, and the lower end of the shaft passes through the lower wall of the hollow assembly; or, the upper end of the shaft passes through the upper wall of the hollow assembly, and the lower end of the shaft passes through the lower wall of the hollow assembly; the inner end of the winding component is fixed on the shaft, and the winding component can be spirally wound on the shaft.

[0013] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that a knob or handle capable of driving the shaft to rotate is installed at the end of the shaft passing through the upper wall and / or lower wall of the hollow assembly.

[0014] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that the mechanical part also has a shaft and a rotating component that can drive the shaft to rotate, the upper wall of the hollow assembly has a through upper through hole in the center, the lower end of the shaft is fixed to the inner wall of the lower wall of the hollow assembly, one end of the rotating component passes through the upper through hole and is fixed to the upper end of the shaft, and the other end of the rotating component is located outside the upper wall of the hollow assembly; or, the lower wall of the hollow assembly has a through lower through hole in the center, the upper end of the shaft is fixed to the inner wall of the upper wall of the hollow assembly, one end of the rotating component passes through the lower through hole and is fixed to the lower end of the shaft, and the other end of the rotating component is located outside the lower wall of the hollow assembly.

[0015] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that the rotating component is a knob or a handle.

[0016] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that: the winding component is a vertical arc-shaped piece, the inner wall of the shell part is provided with a circumferential guide rail adapted to the arc-shaped piece; the arc-shaped piece extends into the circumferential guide rail.

[0017] In order to further enhance the stability of the structure, the outer diameter of the arc-shaped piece is equal to the inner diameter of the outer shell of the storage part. The circumferential guide rail includes two annular pieces vertically arranged on the inner wall of the mechanical part and the outer diameter is adapted to the inner diameter of the mechanical part. The arc-shaped piece extends between the two annular pieces, and the length of the supporting part is equal to the radius difference between the outer shell of the storage part and the mechanical part.

[0018] Furthermore, a coil spring is provided between the housing portion and the mechanical portion, so that the isolation portion can automatically contract under the action of the coil spring.

[0019] Furthermore, the fixing body of the fixing part is fixed to the isolation belt by screws to prevent the isolation belt from falling off.

[0020] Furthermore, the magnetic part of the fixed part is a permanent magnet, which is arranged on the side of the fixed body facing the lower half of the rectangle. Two magnetic parts are arranged and are respectively fixed on the upper and lower parts of the surface of the fixed body. While saving materials, the magnetic part can be more reliably adsorbed on the equipment.

[0021] Furthermore, the fixing structures on both sides of the storage part are mortise and tenon structures, and the connection methods of the two connecting parts and the fixing part are all mortise and tenon connections, which makes it convenient and quick to remove the fixing part from the connecting part and insert the connecting part.

[0022] Of course, the connecting parts may also be other parts that are convenient for fixing and separating each other.

[0023] The present invention has outstanding substantial features and significant progress compared to the prior art. Specifically, the present invention provides a safety and error-proof isolation tool for relay protection secondary equipment, which is used for isolation during maintenance of relay protection secondary equipment. It can serve as a warning, avoid misoperation, and reduce the probability of accidents. Moreover, the safety and error-proof isolation tool for relay protection secondary equipment has a simple structure, is easy to carry and use, and permanent magnets are provided on the outer shell of the mechanical part and the fixed part. No additional support structure is required, and the overall weight is lighter. When in use, it is installed at the position that needs to be isolated by mortise and tenon connection and magnetic attraction. Furthermore, the storage part is a hollow combination structure with the upper half being a semi-cylinder and the lower half being a rectangular parallelepiped. The connecting parts of the mortise and tenon structure are located on both sides of the half-part rectangular parallelepiped. When in use, the mortise and tenon connection method is more firm, and the isolation structure is more stable and not easy to slip. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall scheme of the present invention.

[0025] Figure 2 This is a design drawing of the epoxy resin assembly housing of the present invention.

[0026] Figure 3 for Figure 2 Schematic diagram excluding the connecting parts and the closed opening.

[0027] Figure 4 It is a schematic diagram of the position of the connecting part of the assembly.

[0028] Figure 5 This is a design drawing of the automatic recycling and storage device of the present invention.

[0029] Figure 6 It is a schematic diagram of the isolation zone design of the present invention.

[0030] Figure 7 This is a schematic diagram of the permanent magnet design of the present invention.

[0031] Figure 8 This is a schematic diagram of the detachable housing design of the present invention.

[0032] Figure 9 It is a design drawing of the mortise and tenon joint structure of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the purpose and effects of the present invention will become more apparent. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] Example 1: Figures 1 to 9As shown, an isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that it includes a receiving part, an isolation part and a fixing part; the fixing part includes a magnetic part and a fixing body, and the isolation part is composed of an isolation belt; the receiving part is composed of a mechanical part, a connecting part and an outer shell part, the outer shell part is a hollow combination of a semi-cylindrical upper part and a rectangular lower part, a mechanical part is arranged inside the outer shell part, a plurality of magnet strips are bonded to the inner wall of the outer shell part, a long hole is opened on the two corresponding side walls of the rectangular outer shell part, a connecting part is provided on the surface of the outer shell part outside the long hole, the connecting part has a connecting hole that allows the isolation belt to pass through, and the connecting hole is connected to the long hole; the mechanical part has a winding component, The outer end of the coiled component is fixed to the other end of the isolation belt, and the coiled component can be spirally retracted and wound; one end of the isolation belt is fixed to the fixed part, and the other end of the isolation belt is fixed to the mechanical part of the storage part after passing through a connecting hole and a long hole. Warning slogans are sprayed on the surface of the isolation belt facing the rectangular parallelepiped, such as "operating equipment"; when in use, the isolation part is unfolded, and the fixed part is attracted to the protective screen operating equipment through the magnetic part; when folded, the mechanical part is rotated to retract the isolation part.

[0035] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that the connecting part is located on two corresponding side walls of the rectangular parallelepiped of the hollow assembly.

[0036] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that: the mechanical part also has a shaft, the upper end of the shaft passes through the upper wall of the hollow assembly, and the lower end of the shaft is fixed on the inner wall of the lower wall of the hollow assembly; or, the upper end of the shaft is fixed on the inner wall of the upper wall of the hollow assembly, and the lower end of the shaft passes through the lower wall of the hollow assembly; or, the upper end of the shaft passes through the upper wall of the hollow assembly, and the lower end of the shaft passes through the lower wall of the hollow assembly; the inner end of the winding component is fixed on the shaft, and the winding component can be spirally wound on the shaft.

[0037] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that a knob or handle capable of driving the shaft to rotate is installed at the end of the shaft passing through the upper wall and / or lower wall of the hollow assembly.

[0038] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that the mechanical part also has a shaft and a rotating component that can drive the shaft to rotate, the upper wall of the hollow assembly has a through upper through hole in the center, the lower end of the shaft is fixed to the inner wall of the lower wall of the hollow assembly, one end of the rotating component passes through the upper through hole and is fixed to the upper end of the shaft, and the other end of the rotating component is located outside the upper wall of the hollow assembly; or, the lower wall of the hollow assembly has a through lower through hole in the center, the upper end of the shaft is fixed to the inner wall of the upper wall of the hollow assembly, one end of the rotating component passes through the lower through hole and is fixed to the lower end of the shaft, and the other end of the rotating component is located outside the lower wall of the hollow assembly.

[0039] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that the rotating component is a knob or a handle.

[0040] The above-mentioned isolation tool for safety and error prevention of relay protection secondary equipment is characterized in that: the winding component is a vertical arc-shaped piece, the inner wall of the shell part is provided with a circumferential guide rail adapted to the arc-shaped piece; the arc-shaped piece extends into the circumferential guide rail.

[0041] In order to further enhance the stability of the structure, the outer diameter of the arc-shaped piece is equal to the inner diameter of the outer shell of the storage part. The circumferential guide rail includes two annular pieces vertically arranged on the inner wall of the mechanical part and the outer diameter is adapted to the inner diameter of the mechanical part. The arc-shaped piece extends between the two annular pieces, and the length of the supporting part is equal to the radius difference between the outer shell of the storage part and the mechanical part.

[0042] Furthermore, a coil spring is provided between the housing portion and the mechanical portion, so that the isolation portion can automatically contract under the action of the coil spring.

[0043] Furthermore, the fixing body of the fixing part is fixed to the isolation belt by screws to prevent the isolation belt from falling off.

[0044] Furthermore, the magnetic part of the fixed part is a permanent magnet, which is arranged on the side of the fixed body facing the lower half of the rectangle. Two magnetic parts are arranged and are respectively fixed on the upper and lower parts of the surface of the fixed body. While saving materials, the magnetic part can be more reliably adsorbed on the equipment.

[0045] Furthermore, the fixing structures on both sides of the storage part are mortise and tenon structures, and the connection methods of the two connecting parts and the fixing part are all mortise and tenon connections, which makes it convenient and quick to remove the fixing part from the connecting part and insert the connecting part.

[0046] Of course, the connecting parts may also be other parts that are convenient for fixing and separating each other.

[0047] Example 2: This example differs from Example 1 in that the side of the fixed portion that connects to the isolation portion is connected to a connecting portion of the receiving portion with an elongated hole, while the side of the fixed portion that is not connected to the isolation portion can be connected to a connecting portion of another relay protection secondary device safety and anti-misoperation isolation tool receiving portion that does not have an elongated hole. This expands the scope of application of the present invention and avoids the inability to isolate equipment due to length limitations.

[0048] Finally, it should be noted that the above descriptions are merely preferred embodiments of the invention and are not intended to limit the invention. Although the invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalent features for some of the technical features. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the invention shall be included within the scope of protection of the invention.

Claims

1. A safety and error-proof isolation tool for relay protection secondary equipment, characterized by: The invention comprises a receiving part, an isolating part and a fixing part; the fixing part comprises a magnetic part and a fixing body, and the isolating part is composed of an isolating belt; the receiving part is composed of a mechanical part, a connecting part and an outer shell part, and the outer shell part is a hollow combination of a semi-cylindrical upper part and a rectangular lower part, the inner part of the outer shell part is provided with a mechanical part, a plurality of magnet strips are bonded to the inner wall of the outer shell part, and a long hole is opened on the two corresponding side walls of the rectangular outer shell part, and a connecting part is provided on the surface of the outer shell part outside the long hole, and the connecting part has a connecting hole that allows the isolating belt to pass through, and the connecting hole is connected to the long hole; the mechanical part has a winding component, The outer end of the coiled component is fixed to the other end of the isolation belt, and the coiled component can be spirally retracted and wound; one end of the isolation belt is fixed to the fixed part, and the other end of the isolation belt is fixed to the mechanical part of the storage part after passing through a connecting hole and a long hole. A warning slogan is sprayed on the surface of the isolation belt facing the rectangular parallelepiped; when in use, the isolation part is unfolded, and the fixed part is attracted to the protective screen operating equipment through the magnetic part; when folded, the mechanical part is rotated to retract the isolation part.

2. The isolation tool for safety and error prevention of relay protection secondary equipment according to claim 1, characterized in that: The connecting portion is located on two corresponding side walls of the rectangular parallelepiped of the hollow assembly.

3. The isolation tool for safety and error prevention of relay protection secondary equipment according to claim 2, characterized in that: The mechanical part also has a shaft, the upper end of the shaft passes through the upper wall of the hollow assembly, and the lower end of the shaft is fixed on the inner wall of the lower wall of the hollow assembly; or, the upper end of the shaft is fixed on the inner wall of the upper wall of the hollow assembly, and the lower end of the shaft passes through the lower wall of the hollow assembly; or, the upper end of the shaft passes through the upper wall of the hollow assembly, and the lower end of the shaft passes through the lower wall of the hollow assembly; the inner end of the winding component is fixed on the shaft, and the winding component can be spirally wound on the shaft.

4. The isolation tool for preventing errors in relay protection secondary equipment according to claim 3 is characterized by: The end of the shaft passing through the upper wall and / or the lower wall of the hollow assembly is equipped with a knob or a handle that can drive the shaft to rotate.

5. The isolation tool for safety and error prevention of relay protection secondary equipment according to claim 2, characterized in that: The mechanical part also has a shaft and a rotating component that can drive the shaft to rotate. The upper wall of the hollow assembly has an upper through hole in the center. The lower end of the shaft is fixed to the inner wall of the lower wall of the hollow assembly. One end of the rotating component passes through the upper through hole and is fixed to the upper end of the shaft. The other end of the rotating component is located outside the upper wall of the hollow assembly. Alternatively, the lower wall of the hollow assembly has a through lower hole in the center, the upper end of the shaft is fixed to the inner wall of the upper wall of the hollow assembly, one end of the rotating component passes through the lower hole and is fixed to the lower end of the shaft, and the other end of the rotating component is located outside the lower wall of the hollow assembly; the rotating component is a knob or a handle.

6. The isolation tool for safety and error prevention of relay protection secondary equipment according to claim 2, characterized in that: The winding component is a vertical arc-shaped piece, and the inner wall of the shell part is provided with a circumferential guide rail adapted to the arc-shaped piece; the arc-shaped piece extends into the circumferential guide rail.

7. The isolation tool for preventing errors in relay protection secondary equipment according to claim 6, characterized in that: The outer diameter of the arc-shaped piece is equal to the inner diameter of the outer shell of the storage part. The circumferential guide rail includes two annular pieces vertically arranged on the inner wall of the mechanical part and the outer diameter of which is adapted to the inner diameter of the mechanical part. The arc-shaped piece extends between the two annular pieces. The length of the supporting part is equal to the radius difference between the outer shell of the storage part and the mechanical part.

8. The isolation tool for preventing errors in relay protection secondary equipment according to claim 7, characterized in that: A coil spring is arranged between the outer shell part and the mechanical part so that the isolation part can automatically shrink under the action of the coil spring; the fixed body of the fixed part and the isolation belt are fixed by screws; the magnetic part of the fixed part is a permanent magnet, which is arranged on the side of the fixed body of the fixed part that is rectangular facing the lower half, and two magnetic parts are arranged, which are respectively fixed on the upper half and lower half of the surface of the fixed body.

9. The isolation tool for preventing errors in relay protection secondary equipment according to claim 8, characterized in that: The side where the fixed part is connected to the isolation part is connected to the connecting part with a long hole in the storage part, and the side where the fixed part is not connected to the isolation part can be connected to the connecting part without a long hole in the storage part of another relay protection secondary equipment safety and anti-error isolation tool.

10. The isolation tool for preventing errors in relay protection secondary equipment according to claim 7, characterized in that: The fixing structures on both sides of the fixed part shell are mortise and tenon structures, and the connection method between the two connecting parts and the fixed part is mortise and tenon connection.

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