A lightning arrester production and assembly tool

Abstract

This utility model discloses a surge arrester manufacturing assembly fixture, relating to the field of surge arrester production. It includes a first assembly frame and a second assembly frame, connected and fixed together by hinges. The first assembly frame comprises a first fixed frame and a second fixed frame, both U-shaped. First connecting plates are fixedly fixed to both ends of the second fixed frame, and are inserted into the first fixed frame. The second assembly frame comprises a first mounting frame and a second mounting frame, both U-shaped. Second connecting plates are fixedly fixed to both ends of the second mounting frame, and are inserted into the first mounting frame. This utility model allows the first and second assembly frames to be adjusted to a specified length according to the overall length of the surge arrester body, thereby adapting to the overall installation requirements of surge arrester bodies of different lengths and improving the overall practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of surge arrester manufacturing, specifically a surge arrester manufacturing assembly tooling. Background Technology

[0002] Surge arresters are crucial protective devices in power transmission and transformation systems and form the basis for insulation coordination in power equipment. The insulation level of power equipment is largely determined by the protective characteristics of surge arresters. If no protective measures are taken when lightning surges enter a substation along the line, the lightning overvoltage will directly act on the power equipment, causing insulation breakdown and damage. If a surge arrester is installed at an appropriate location near the power equipment, the arrester will conduct when the amplitude of the lightning overvoltage entering the substation reaches its operating voltage, diverting the huge lightning current to the ground. The overvoltage is interrupted, and the voltage applied to the insulation of the power equipment becomes the residual voltage of the surge arrester, i.e., the voltage drop generated by the lightning current flowing through the arrester's resistive elements. Currently, the installation of drop-out surge arresters requires manual screwing of the pull ring into the high-voltage end screw of the arrester during installation, thus completing the overall production and assembly of the arrester.

[0003] Publication No. "CN221160103U" discloses an auxiliary tooling for assembling drop-out surge arresters, including a fixed positioning component and a movable positioning component that cooperates with the fixed positioning component to position the surge arrester to be assembled. The fixed positioning component includes a base plate, and two opposing lower supports for the rotating mechanism and a lower support for the pull ring mounted on the base plate. The movable positioning component includes a movable frame, and two opposing upper supports for the rotating mechanism and an upper support for the pull ring mounted inside the movable frame. The upper and lower supports for the rotating mechanism correspond to each other to form a rotating mechanism support for positioning one end of the rotating mechanism of the surge arrester to be assembled, and the upper and lower supports for the pull ring correspond to each other to form a pull ring support for positioning the pull ring at the other end of the surge arrester to be assembled. This utility model is used for positioning the assembly angle of the pull ring and rotating mechanism of drop-out surge arresters, solving the problems of laborious assembly, large errors, and low efficiency in traditional drop-out surge arrester assembly.

[0004] The assembly fixtures mentioned above have a fixed overall size, making them difficult to adjust. When assembling and installing surge arresters of bronze dimensions, the overall size of the fixtures cannot be adjusted according to different work requirements, resulting in poor overall practicality. Therefore, a surge arrester production assembly fixture is needed to help solve this problem. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a surge arrester production assembly fixture to solve the technical problem that the existing assembly fixtures have a fixed overall size, which is not convenient to adjust. When assembling and installing surge arresters of bronze size, the overall size of the fixture cannot be adjusted according to different work requirements, resulting in poor overall practicality of the assembly fixtures.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a surge arrester production assembly fixture, comprising a first assembly frame and a second assembly frame, wherein the first assembly frame and the second assembly frame are connected and fixed by hinges;

[0007] The first assembly frame includes a first fixed frame and a second fixed frame. Both the first fixed frame and the second fixed frame are U-shaped. Both ends of the second fixed frame are fixed with a first connecting plate, and the first connecting plate is inserted and installed on the first fixed frame.

[0008] The second assembly frame includes a first mounting frame and a second mounting frame. Both the first mounting frame and the second mounting frame are U-shaped. Both ends of the second mounting frame are fixed with second connecting plates, which are inserted into the first mounting frame.

[0009] Both the first fixed frame and the first mounting frame have protruding seats on their outer sides. A positioning bolt is threaded onto the protruding seat. One end of the positioning bolt installed on the first fixed frame is abutted against the outer side of the first connecting plate, and one end of the positioning bolt installed on the first mounting frame is abutted against the outer side of the second connecting plate. Both the first assembly frame and the second assembly frame have assembly cavities for assembling the surge arrester body.

[0010] The present invention is further configured such that a scale plate is horizontally embedded on the outer side of the first connecting plate and the second connecting plate, and the scale plate is engraved with length scale lines.

[0011] The present invention is further configured such that a fixing component is installed on the side of the first assembly frame away from the hinge, and a fixing hook is installed on the side of the second assembly frame away from the hinge, wherein the fixing component and the fixing hook are engaged and locked together.

[0012] The present invention is further configured such that the fixing component includes a hinged seat hingedly mounted on the side of the first assembly frame, a pressing plate hingedly mounted on the hinged seat, a pull ring hingedly mounted at the middle section of the pressing plate, and the pull ring engaging with the fixing hook.

[0013] The present invention is further configured such that each of the first fixed frame, the second fixed frame, the first mounting frame and the second mounting frame is provided with a snap-fit ​​block, a limit strip is provided on the snap-fit ​​block, a clamping block is snap-fitted and installed at the snap-fit ​​block, and a limit groove is provided at the bottom of the clamping block for the limit strip to receive.

[0014] The present invention is further configured such that the clamping block has a clamping cavity for the surge arrester body to receive, and a plurality of clamping pads are embedded in the clamping cavity.

[0015] The present invention is further configured such that a plug rod is protruding from the limiting groove at the bottom of the clamping block, a corresponding insertion hole for the plug rod to be inserted is provided on the snap-fit ​​block, a fixing hole is provided on the plug rod, and fixing bolts are threaded on the outer sides of the first fixing frame, the second fixing frame, the first mounting frame and the second mounting frame, and one end of the fixing bolt is inserted into the fixing hole of the plug rod.

[0016] In summary, the present invention has the following beneficial effects: By providing an adjustable first and second assembly frame, the first fixed frame and the first mounting frame can be moved to a specified length during operation. The overall position of the first fixed frame and the first mounting frame after adjustment is effectively determined by the scale plates on the first and second connecting plates. Twisting the positioning bolt causes the threaded engagement between the protruding seat and the positioning bolt, thereby placing one end of the positioning bolt against the first and second connecting plates. This allows for overall positioning and fastening of the first and second assembly frames. Furthermore, the first and second assembly frames can be adjusted to a specified length according to the different overall lengths of the surge arrester body, thus adapting to the overall installation requirements of surge arrester bodies of different lengths and improving the overall practicality of the device.

[0017] By using the clamping blocks and fixing bolts at the snap-fit ​​point, different sizes of clamping blocks can be easily replaced during operation according to the overall dimensions of the surge arrester body. This helps to minimize the risk of the surge arrester body rotating during subsequent high-voltage end screw installation, ensuring smooth operation of subsequent work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first and second assembly frames of this utility model after they are opened.

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0021] Figure 4 This is a schematic diagram of the structure of the first assembly frame and the second assembly frame after they are closed.

[0022] In the diagram: 1. First assembly frame; 2. First fixing frame; 3. Second fixing frame; 4. First connecting plate; 5. Second assembly frame; 6. First mounting frame; 7. Second mounting frame; 8. Second connecting plate; 9. Protruding seat; 10. Positioning bolt; 11. Scale plate; 12. Fixing component; 13. Hinge seat; 14. Pressing plate; 15. Pull ring; 16. Fixing hook; 17. Surge arrester body; 18. Snap-fit ​​block; 181. Limiting strip; 19. Clamping block; 191. Clamping pad; 20. Insert rod; 21. Fixing bolt. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] A type of surge arrester manufacturing assembly tooling, such as Figure 1-4 The diagram shows a first assembly frame 1 and a second assembly frame 5, which are connected and fixed together by hinges. The first assembly frame 1 includes a first fixing frame 2 and a second fixing frame 3, both of which are U-shaped. A first connecting plate 4 protrudes from both ends of the second fixing frame 3 and is inserted into the first fixing frame 2. The second assembly frame 5 includes a first mounting frame 6 and a second mounting frame 7, both of which are U-shaped. A second connecting plate 8 protrudes from both ends of the second mounting frame 7 and is inserted into the first mounting frame 6. Both the first fixing frame 2 and the first mounting frame 6 have protruding seats 9 on their outer edges, with threaded positioning bolts 10 installed at the protruding seats 9. One end of the positioning bolt 10 installed on the first fixing frame 2 abuts against the outer edge of the first connecting plate 4, and one end of the positioning bolt 10 installed on the first mounting frame 6 abuts against the outer edge of the second connecting plate 8. Both the first assembly frame 1 and the second assembly frame 5 have assembly cavities for assembling the surge arrester body 17.

[0025] By using the adjustable-size first assembly frame 1 and second assembly frame 5, the first fixed frame 2 and first mounting frame 6 can be moved to a specified length during operation. The overall position of the first fixed frame 2 and first mounting frame 6 after adjustment is effectively determined by the scale plates 11 on the first connecting plate 4 and second connecting plate 8. Twisting the positioning bolt 10 causes the protruding seat 9 to engage with the positioning bolt 10 through a threaded connection, thereby placing one end of the positioning bolt 10 against the first connecting plate 4 and second connecting plate 8. This ensures the overall positioning and fastening of the first assembly frame 1 and second assembly frame 5. Furthermore, the first assembly frame 1 and second assembly frame 5 can be adjusted to a specified length according to the different overall lengths of the surge arrester body 17, thus adapting to the overall installation requirements of surge arrester bodies 17 of different lengths and improving the overall practicality of the device.

[0026] A scale plate 11 is horizontally embedded on the outer side of the first connecting plate 4 and the second connecting plate 8. The scale plate 11 is engraved with length scale lines. By using the scale plate 11, the overall length of the first assembly frame 1 and the second assembly frame 5 after adjustment can be effectively determined before work.

[0027] A fixing component 12 is installed on the side of the first assembly frame 1 away from the hinge, and a fixing hook 16 is installed on the side of the second assembly frame 5 away from the hinge. The fixing component 12 and the fixing hook 16 are engaged. The fixing component 12 includes a hinge seat 13 hinged to the side of the first assembly frame 1. A pressing plate 14 is hinged to the hinge seat 13. A pull ring 15 is hinged to the middle section of the pressing plate 14. The pull ring 15 and the fixing hook 16 are engaged.

[0028] By using the fixed component 12, the pull ring 15 is snapped into the fixed hook 16. Pressing the pressing plate 14 causes the pull ring 15 to pull the fixed hook 16, thereby enabling the first assembly frame 1 and the second assembly frame 5 to be stably snapped into place. This ensures that the first assembly frame 1 and the second assembly frame 5 can be stably snapped into place during operation, thus facilitating the subsequent assembly of the surge arrester body 17.

[0029] Furthermore, the first fixing frame 2, the second fixing frame 3, the first mounting frame 6, and the second mounting frame 7 are all provided with snap-fit ​​blocks 18. The snap-fit ​​blocks 18 are provided with limit strips 181 protruding from them. The snap-fit ​​blocks 18 are fitted with clamping blocks 19. The bottom of the clamping blocks 19 is provided with a limit groove for the limit strips 181 to receive. The bottom limit groove of the clamping blocks 19 is provided with a protruding insertion rod 20. The snap-fit ​​blocks 18 are provided with corresponding insertion holes for the insertion rod 20 to be inserted. The insertion rod 20 is provided with fixing holes. The outer sides of the first fixing frames 2, the second fixing frames 3, the first mounting frames 6, and the second mounting frames 7 are threaded with fixing bolts 21. One end of the fixing bolts 21 is inserted into the fixing holes of the insertion rod 20.

[0030] By cooperating with the clamping block 19 and fixing bolt 21 at the snap-fit ​​block 18, different sizes of clamping blocks 19 can be easily replaced according to the overall size of the end of the surge arrester body 17 during operation. This will help to avoid the surge arrester body 17 rotating during subsequent high-voltage end screw installation, thus ensuring smooth operation of subsequent work.

[0031] The clamping block 19 has a clamping cavity for the surge arrester body 17 to receive. Several clamping pads 191 are embedded in the clamping cavity. The clamping pads 191 can help prevent the surge arrester body 17 from rotating during the installation of the high-voltage end screw.

[0032] The working principle of this utility model:

[0033] Before operation, the first fixed frame 2 and the first mounting frame 6 are moved to the specified length. The overall position of the first fixed frame 2 and the first mounting frame 6 after adjustment is effectively determined by the scale plate 11 on the first connecting plate 4 and the second connecting plate 8. The positioning bolt 10 is turned, and the protruding seat 9 is threadedly engaged with the positioning bolt 10, so that one end of the positioning bolt 10 is pressed against the first connecting plate 4 and the second connecting plate 8. The overall positioning and fastening of the first assembly frame 1 and the second assembly frame 5 are then performed. The first assembly frame 1 and the second assembly frame 5 are then adjusted to the specified length according to the different overall lengths of the surge arrester body 17.

[0034] According to the different overall dimensions of the end of the surge arrester body 17, insert the rod 20 on the clamping block 19 of the corresponding size into the insertion hole, rotate the fixing bolt 21, and when the fixing bolt 21 is inserted into the fixing hole on the rod 20, the overall fixing of the clamping block 19 is completed.

[0035] When downgrading, the surge arrester body 17 is placed in the assembly cavity of the first assembly frame 1 and the second assembly frame 5. The second assembly frame 5 is covered on the top of the first assembly frame 1. The pull ring 15 is snapped into the fixing hook 16. The pressing plate 14 is pressed. When the pressing plate 14 is pressed, it drives the pull ring 15 to pull the fixing hook 16, so that the first assembly frame 1 and the second assembly frame 5 can be stably snapped and fixed. During installation, the high-voltage end screw is tightened at the end of the surge arrester body (17) by the fixing component.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A surge arrester manufacturing assembly fixture, comprising a first assembly frame (1) and a second assembly frame (5), characterized in that: The first assembly frame (1) and the second assembly frame (5) are connected and fixed by hinges; The first assembly frame (1) includes a first fixed frame (2) and a second fixed frame (3). Both the first fixed frame (2) and the second fixed frame (3) are U-shaped. Both ends of the second fixed frame (3) are fixed with a first connecting plate (4). The first connecting plate (4) is inserted and installed on the first fixed frame (2). The second assembly frame (5) includes a first mounting frame (6) and a second mounting frame (7). Both the first mounting frame (6) and the second mounting frame (7) are U-shaped. Both ends of the second mounting frame (7) are fixed with a second connecting plate (8). The second connecting plate (8) is inserted and installed on the first mounting frame (6). Both the first fixed frame (2) and the first mounting frame (6) have protruding seats (9) on their outer sides. A positioning bolt (10) is threaded onto the protruding seat (9). One end of the positioning bolt (10) installed on the first fixed frame (2) is abutted on the outer side of the first connecting plate (4). One end of the positioning bolt (10) installed on the first mounting frame (6) is abutted on the outer side of the second connecting plate (8). Both the first assembly frame (1) and the second assembly frame (5) have assembly cavities for assembling the surge arrester body (17).

2. The surge arrester production assembly tool according to claim 1, characterized in that: A scale plate (11) is horizontally embedded on the outer side of the first connecting plate (4) and the second connecting plate (8), and length scale lines are engraved on the scale plate (11).

3. The surge arrester production assembly tool of claim 1, wherein: A fixing component (12) is installed on the side of the first assembly frame (1) away from the hinge, and a fixing hook (16) is installed on the side of the second assembly frame (5) away from the hinge. The fixing component (12) and the fixing hook (16) are engaged and locked together.

4. The surge arrester production assembly tool of claim 3, wherein: The fixing component (12) includes a hinge seat (13) hingedly mounted on the side of the first assembly frame (1), a pressing plate (14) hingedly mounted on the hinge seat (13), a pull ring (15) hingedly mounted at the middle section of the pressing plate (14), and the pull ring (15) engaging with the fixing hook (16).

5. The surge arrester production assembly tool of claim 4, wherein: The first fixing frame (2), the second fixing frame (3), the first mounting frame (6) and the second mounting frame (7) are all provided with snap-fit ​​blocks (18), the snap-fit ​​blocks (18) are provided with limit strips (181) protruding from them, the snap-fit ​​blocks (18) are provided with clamping blocks (19) snap-fitted and installed at the snap-fit ​​blocks (18), and the bottom of the clamping blocks (19) is provided with a limit groove for the limit strips (181) to receive.

6. The surge arrester production assembly tool of claim 5, wherein: The clamping block (19) has a clamping cavity for the surge arrester body (17) to receive, and a number of clamping pads (191) are embedded in the clamping cavity.

7. The surge arrester production assembly tool of claim 6, wherein: A rod (20) is protruding from the limiting groove at the bottom of the clamping block (19). The corresponding position of the snap-fit ​​block (18) is provided with a insertion hole for the rod (20) to be inserted. A fixing hole is provided on the rod (20). Fixing bolts (21) are threaded on the outer sides of the first fixing frame (2), the second fixing frame (3), the first mounting frame (6), and the second mounting frame (7). One end of the fixing bolt (21) is inserted into the fixing hole of the rod (20).

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