A device for testing the insulation type of a drop-out fuse

Abstract

The utility model provides a kind of for drop-out fuse insulation type test device, belong to fuse testing device field, including base, lifting assembly and adjusting assembly;Tension support assembly includes oil cylinder barrel;The utility model: piston rod is equipped in the inside of oil cylinder barrel, piston rod is connected in the inside of oil cylinder barrel by the piston head piston of one end installation, the inside of one end of oil cylinder barrel is equipped with guide sleeve, piston rod keeps linear movement along guide sleeve in the inside of oil cylinder barrel, limit sleeve is installed at the place close to piston head of one end of piston rod and play limiting effect, the grease nipple of both ends of oil cylinder barrel is convenient for grease to realize piston rod telescopic movement from both ends, by design oil cylinder barrel structure, high-pressure grease is injected into rod cavity or rodless cavity in oil cylinder barrel, the piston rod retraction or extension of adjustable tension support device, to reach the purpose of large load tension or support;Length range of adjustable tension or support device adjustment is large, adjustment is simple, and interchangeability, strong universality.

Description

Technical Field

[0001] This utility model relates to the field of fuse testing devices, specifically a device for testing the insulation type of drop-out fuses. Background Technology

[0002] Outdoor drop-out fuses are generally used in power systems on the primary side of distribution lines and transformers for short-circuit and overload protection. They are a type of short-circuit protection switch and are now widely used. They mainly consist of upper and lower terminals, high-strength insulators, a mounting plate, and a fuse tube. The mounting plate is fixed to the middle of the insulator. The insulator has upper and lower terminals for connecting conductors, with upper and lower stationary contacts attached to the terminals. The fuse tube has upper and lower moving contacts at both ends. After the fuse wire passes through the fuse tube, the tension of the fuse wire pulls the moving contacts tight, keeping the fuse closed. Currently, almost all drop-out fuses manufactured by domestic and international companies have basically the same structure. When performing insulation type tests on drop-out fuses, because there is no corresponding insulation type testing device, multiple people must work together and perform a lot of auxiliary work to complete the test. Furthermore, there are certain safety risks during the test preparation process, seriously affecting the efficiency of insulation type testing of drop-out fuses. Utility Model Content

[0003] The purpose of this invention is to provide a device for testing the insulation type of drop-out fuses, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a device for testing the insulation type of drop-out fuses, comprising a base, a lifting assembly, and an adjusting assembly; Wherein: the surface of the base is provided with a supporting insulator, the top of the supporting insulator is equipped with a connecting arm, and one end of the connecting arm is equipped with a drop-out fuse; The lifting assembly includes a mounting bracket fixedly installed on one side of the surface of the base. A lead screw is rotatably installed inside the mounting bracket. A lifting block is threadedly connected to the surface of the lead screw. A mounting seat is fixedly installed on the surface of the lifting block. A support insulator is fixedly installed on the surface of the mounting seat. A rocker wheel is rotatably installed at the bottom back of the mounting bracket. One end of the rocker wheel is connected to the bottom end of the lead screw. The adjustment assembly includes a telescopic rod that slides through the connecting arm. Slide bars are fixedly installed at the top and bottom of the telescopic rod. Slide grooves are correspondingly opened at the top and bottom of the inner wall of the connecting arm. The slide bars are slidably installed inside the slide grooves. Stroke grooves are opened through both sides of the connecting arm. Limiting rods are fixedly installed on both sides of one end of the telescopic rod inside the connecting arm. The limiting rods slide through the stroke grooves. Fixing nuts are threaded onto the surface of the limiting rods.

[0005] In a preferred embodiment of this utility model: one end of the rocker wheel is inserted into the interior of the mounting bracket and fixedly mounted with an active bevel gear; the bottom end of the lead screw is fixedly mounted with a driven bevel gear; the active bevel gear and the driven bevel gear are meshed and connected. As a preferred embodiment of this utility model: slide rails are fixedly installed on both sides of the surface of the mounting bracket, and sliders are fixedly installed on both sides of the lifting block, with the sliders sliding on the surface of the slide rails.

[0006] As a preferred embodiment of this utility model: an installation plate is installed at the front end of the telescopic rod, and a fixing bolt is connected to the surface of the installation plate; a fixing frame is installed on the surface of the drop-out fuse, and the fixing frame is installed on the surface of the installation plate by fixing bolts.

[0007] As a preferred embodiment of this utility model, the height of the supporting insulator is one meter.

[0008] As a preferred embodiment of this utility model, guardrails are installed on both sides of the base.

[0009] As a preferred embodiment of this utility model, a placement box is installed on the surface of the guardrail.

[0010] As a preferred embodiment of this utility model: universal wheels are fixedly installed around the bottom of the base, and the universal wheels have a self-locking plate structure.

[0011] As a preferred embodiment of this utility model, a trolley handle is fixedly installed on the side surface of the base.

[0012] As a preferred embodiment of this utility model, a reinforcing bracket is provided at the bottom of the connection between the lifting block and the mounting base.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) A mounting frame is installed on one side of the base surface. A screw is rotatably installed inside the mounting frame. A lifting block is threadedly connected to the surface of the screw. A mounting seat is installed on the surface of the lifting block. The support insulator is fixedly installed on the surface of the mounting seat. By shaking the rocker wheel at the bottom of the back of the mounting frame, the active bevel gear is driven to rotate. The active bevel gear drives the screw to rotate inside the mounting frame through the meshing driven bevel gear. Slide rails are fixedly installed on both sides of the mounting frame surface. The sliders on both sides of the lifting block are slidably installed on the slide rail surface, so that when the screw rotates, the lifting block rises and falls along the mounting frame, thereby driving the support insulator to rise and fall accordingly. Adjusting the height of the support insulator further drives the drop-out fuse away from the ground, ensuring the safe distance of the test sample to the ground. (2) A telescopic rod is slidably inserted inside the connecting arm. Slide strips are installed at the top and bottom of the telescopic rod. The telescopic rod is slidably installed in the slide groove inside the connecting arm through the slide strips. When the telescopic rod slides, it drives the drop-out fuse at the front end to adjust the distance between the telescopic rod and the supporting insulator. When the telescopic rod moves inside the connecting arm, the limit rods on both sides slide along the travel groove. The surface of the limit rod is threaded with a fixing nut. The adjusted telescopic rod is fixed by tightening the fixing nut. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a schematic diagram of the lifting component structure of this utility model; Figure 5 This is a schematic diagram of the adjustment component structure of this utility model.

[0015] In the diagram: 1. Base; 2. Supporting insulator; 3. Connecting arm; 4. Drop-out fuse; 5. Lifting assembly; 51. Mounting bracket; 52. Lead screw; 53. Lifting block; 54. Mounting seat; 55. Rocker wheel; 56. Active bevel gear; 57. Driven bevel gear; 6. Adjusting assembly; 61. Telescopic rod; 62. Sliding bar; 63. Slide groove; 64. Stroke groove; 65. Limiting rod; 66. Fixing nut; 7. Slide rail; 8. Slider; 9. Mounting plate; 10. Fixing bolt; 11. Fixing frame; 12. Guardrail; 13. Placement box; 14. Casters; 15. Cart handle; 16. Reinforcing bracket. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Please see Figure 1 - Figure 5 A device for testing the insulation type of a drop-out fuse includes: a base 1, a lifting assembly 5, and an adjusting assembly 6; a supporting insulator 2 is provided on the surface of the base 1, a connecting arm 3 is installed on the top of the supporting insulator 2, and a drop-out fuse 4 is installed at one end of the connecting arm 3. Please see Figure 1 , Figure 4 The lifting assembly 5 includes a mounting bracket 51 fixedly installed on one side of the surface of the base 1. A lead screw 52 is rotatably installed inside the mounting bracket 51. A lifting block 53 is threadedly connected to the surface of the lead screw 52. A mounting seat 54 is fixedly installed on the surface of the lifting block 53. A support insulator 2 is fixedly installed on the surface of the mounting seat 54. A rocker wheel 55 is rotatably installed at the bottom back of the mounting bracket 51. One end of the rocker wheel 55 is connected to the bottom end of the lead screw 52. One end of the rocker wheel 55 is inserted into the interior of the mounting bracket 51 and fixedly installed with an active bevel gear 56. A driven bevel gear 57 is fixedly installed at the bottom end of the lead screw 52. The active bevel gear 56 and the driven bevel gear 57 are meshed together. Slide rails 7 are fixedly installed on both sides of the surface of the mounting bracket 51. Slider blocks 8 are fixedly installed on both sides of the lifting block 53. The sliders 8 slide on the surface of the slide rails 7.

[0018] In practical use: A mounting bracket 51 is installed on one side of the surface of the base 1. A lead screw 52 is rotatably installed inside the mounting bracket 51. A lifting block 53 is threadedly connected to the surface of the lead screw 52. A mounting seat 54 is installed on the surface of the lifting block 53. The supporting insulator 2 is fixedly installed on the surface of the mounting seat 54. By shaking the rocker wheel 55 at the bottom of the back of the mounting bracket 51, the active bevel gear 56 is driven to rotate. The active bevel gear 56 drives the lead screw 52 to rotate inside the mounting bracket 51 through the meshing driven bevel gear 57. Slide rails 7 are fixedly installed on both sides of the surface of the mounting bracket 51. The sliders 8 on both sides of the lifting block 53 are slidably installed on the surface of the slide rails 7, so that when the lead screw 52 rotates, the lifting block 53 rises and falls along the mounting bracket 51, thereby driving the supporting insulator 2 to rise and fall accordingly. Adjusting the height of the supporting insulator 2 further drives the drop-out fuse 4 away from the ground, ensuring a safe distance between the test sample and the ground.

[0019] Please see Figure 2 , Figure 5The adjusting component 6 includes a telescopic rod 61 that slides inside the connecting arm 3. Slide strips 62 are fixedly installed at the top and bottom of the telescopic rod 61. Slide grooves 63 are correspondingly opened at the top and bottom of the inner wall of the connecting arm 3. Slide strips 62 are slidably installed inside the slide grooves 63. Stroke grooves 64 are opened through both sides of the connecting arm 3. Limiting rods 65 are fixedly installed on both sides of one end of the telescopic rod 61 inside the connecting arm 3. The limiting rods 65 slide inside the stroke grooves 64. The surface of the limiting rods 65 is threaded with fixing nuts 66.

[0020] In practical use: A telescopic rod 61 is slidably inserted inside the connecting arm 3. Slide strips 62 are installed at the top and bottom of the telescopic rod 61. The telescopic rod 61 is slidably installed in the slide groove 63 inside the connecting arm 3 through the slide strips 62. When the telescopic rod 61 slides, it drives the drop-out fuse 4 at the front end to adjust the distance between it and the supporting insulator 2. When the telescopic rod 61 moves inside the connecting arm 3, the limiting rods 65 on both sides slide along the stroke groove 64. The surface of the limiting rod 65 is threaded with a fixing nut 66. The adjusted telescopic rod 61 is fixed by tightening the fixing nut 66.

[0021] Please see Figure 5 The front end of the telescopic rod 61 is equipped with an installation plate 9, and the surface of the installation plate 9 is connected with fixing bolts 10. The surface of the drop-out fuse 4 is equipped with a fixing bracket 11, which is installed on the surface of the installation plate 9 by fixing bolts 10.

[0022] In practical use: The front end of the telescopic rod 61 is equipped with an installation plate 9, and the surface of the installation plate 9 is connected with fixing bolts 10. The installation plate 9 is connected to the fixing bracket 11 on the surface of the drop-out fuse 4 through the fixing bolts 10, so that the drop-out fuse 4 is fixed on the surface of the installation plate 9.

[0023] Please see Figure 2 The height of the supporting insulator 2 is one meter.

[0024] In practical use: The height of the support insulator 2 is one meter, which effectively fixes the test sample at a certain height above the ground, ensuring the safe distance of the test sample from the ground during the test.

[0025] Please see Figure 1 , Figure 2 The base 1 has guardrails 12 installed on both sides, and a storage box 13 is installed on the surface of the guardrails 12.

[0026] In practical use: guardrails 12 are installed on both sides of the base 1, and a storage box 13 is installed on the surface of the guardrails 12 for placing protective equipment, so that personnel can take protective measures during the test.

[0027] Please see Figure 3 The base 1 has casters 14 fixedly installed around its bottom edge, and the casters 14 have a self-locking plate structure.

[0028] In practical use: The bottom of the base 1 is equipped with casters 14 around its perimeter, which facilitates the movement of the device back and forth within the test area. The casters 14 have a self-locking plate structure that allows them to be locked.

[0029] Please see Figure 3 A trolley handle 15 is fixedly installed on the side surface of the base 1.

[0030] In practical use: A trolley handle 15 is installed on the side of the base 1, which makes it easy to move the device.

[0031] Please see Figure 4 A reinforcing bracket 16 is provided at the bottom of the connection between the lifting block 53 and the mounting base 54.

[0032] In practical use: the reinforcing bracket 16 provided at the connection between the lifting block 53 and the mounting base 54 improves the structural strength of the connection and meets the installation support for the supporting insulator 2 and the drop-out fuse 4.

[0033] A mounting bracket 51 is installed on one side of the surface of the base 1. A lead screw 52 is rotatably installed inside the mounting bracket 51. A lifting block 53 is threadedly connected to the surface of the lead screw 52. A mounting seat 54 is installed on the surface of the lifting block 53. The support insulator 2 is fixedly installed on the surface of the mounting seat 54. By shaking the rocker wheel 55 at the bottom of the back of the mounting bracket 51, the active bevel gear 56 is driven to rotate. The active bevel gear 56 drives the lead screw 52 to rotate inside the mounting bracket 51 through the meshing driven bevel gear 57. Slide rails 7 are fixedly installed on both sides of the surface of the mounting bracket 51. The sliders 8 on both sides of the lifting block 53 are slidably installed on the surface of the slide rails 7, so that when the lead screw 52 rotates, the lifting block 53 rises and falls along the mounting bracket 51, thereby driving the support insulator 2 to rise and fall accordingly. Adjusting the height of the support insulator 2 further drives the drop-out fuse 4 away from the ground, ensuring a safe distance between the test sample and the ground.

[0034] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for testing the insulation type of drop-out fuses, characterized in that, include: A base (1) is provided with a supporting insulator (2) on its surface. A connecting arm (3) is installed on the top of the supporting insulator (2). A drop-out fuse (4) is installed at one end of the connecting arm (3). The lifting assembly (5) includes a mounting bracket (51) fixedly installed on one side of the surface of the base (1). A lead screw (52) is rotatably installed inside the mounting bracket (51). A lifting block (53) is threadedly connected to the surface of the lead screw (52). A mounting seat (54) is fixedly installed on the surface of the lifting block (53). The supporting insulator (2) is fixedly installed on the surface of the mounting seat (54). A rocker wheel (55) is rotatably installed at the bottom back of the mounting bracket (51). One end of the rocker wheel (55) is connected to the bottom end of the lead screw (52) in a transmission connection. Adjustment component (6), the adjustment component (6) includes a telescopic rod (61) that slides through the inside of the connecting arm (3), the top and bottom of the telescopic rod (61) are fixedly installed with slide bars (62), the top and bottom of the inner wall of the connecting arm (3) are respectively provided with slide grooves (63), the slide bars (62) are slidably installed inside the slide grooves (63), the two sides of the connecting arm (3) are provided with stroke grooves (64), the telescopic rod (61) is located inside the connecting arm (3) and the two sides of the end are fixedly installed with limit rods (65), the limit rods (65) slide through the stroke grooves (64), and the surface of the limit rods (65) is threaded with fixing nuts (66).

2. The experimental apparatus according to claim 1, characterized in that: One end of the rocker wheel (55) is inserted into the interior of the mounting bracket (51) and is fixedly mounted with an active bevel gear (56). The bottom end of the lead screw (52) is fixedly mounted with a driven bevel gear (57). The active bevel gear (56) and the driven bevel gear (57) are meshed and connected.

3. The experimental apparatus according to claim 1, characterized in that: The mounting bracket (51) has slide rails (7) fixedly installed on both sides of its surface, and the lifting block (53) has sliders (8) fixedly installed on both sides of its surface. The sliders (8) slide on the surface of the slide rails (7).

4. The test apparatus according to claim 1, characterized in that: The telescopic rod (61) is equipped with an installation plate (9) at its front end. The surface of the installation plate (9) is connected with fixing bolts (10). The surface of the drop-out fuse (4) is equipped with a fixing bracket (11). The fixing bracket (11) is installed on the surface of the installation plate (9) by fixing bolts (10).

5. The test apparatus according to claim 1, characterized in that: The height of the supporting insulator (2) is one meter.

6. The test apparatus according to claim 1, characterized in that: The base (1) is equipped with guardrails (12) on both sides.

7. The test apparatus according to claim 6, characterized in that: The guardrail (12) is fitted with a placement box (13).

8. The test apparatus according to claim 1, characterized in that: The base (1) is fixedly installed with casters (14) around its bottom edge, and the casters (14) have a self-locking plate structure.

9. The test apparatus according to claim 1, characterized in that: A trolley handle (15) is fixedly installed on the side surface of the base (1).

10. The test apparatus according to claim 1, characterized in that: A reinforcing bracket (16) is provided at the bottom of the connection between the lifting block (53) and the mounting base (54).

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