Insulation resistance meter test rod capable of preventing electric shock

Abstract

The utility model discloses an anti-electric shock insulation resistance instrument test rod, which relates to the insulation resistance instrument test rod technical field, and comprises a first test rod and an insulation handle, the top of the first test rod is provided with a second test rod, the top of the second test rod is fixedly provided with a hook body, the outer side of the second test rod is provided with a tester, and the insulation handle is provided with a hook body. The top of the tester is connected with a wire. According to the anti-electric-shock insulation resistance meter test rod, a clamping block is pulled to be separated from a second fixing block, then a second test rod is rotated and folded, when the second test rod is completely folded and is close to a first test rod, an insulation handle can be rotated, and the insulation handle is in butt joint with the second test rod through an arc-shaped groove in one side; the insulating handle made of the rubber material deforms after being in contact with the second test rod, and is clamped with the second test rod, so that folding storage of the second test rod and the first test rod is completed, and the test rod of the insulation resistance meter can be conveniently folded and carried through the operation.

Description

Technical Field

[0001] The utility model relates to the technical field of insulation resistance meter test rods, in particular to an insulation resistance meter test rod for preventing electric shock. Background Art

[0002] In the field of electrified railways, overhead line mode contact networks are generally used to power locomotives and vehicles. The contact network line is at a high distance from the ground, and the line is arranged along the railway track. The locomotive uses a pantograph to smoothly draw current from the contact network to obtain a stable source of energy. The special bow-net coupling relationship between the locomotive and the contact network determines that the contact network in the field of electrified railways cannot be equipped with a backup system. Therefore, in order to ensure the safe and stable operation of the contact network, the railway department needs to carry out maintenance operations on the contact network system according to the plan and cycle. After each maintenance operation is completed, the line needs to be tested for insulation to ensure that there is no grounding point on the line to the ground and the line is insulated. Due to the high height of the contact network line, testers generally use an insulation resistance tester test rod to detect the high-altitude contact network line.

[0003] For example, the portable contact network line insulation tester with publication number CN209264898U, the insulation tester of this utility model is equipped with a special insulating rod and a hook to connect the contact network line, which helps the tester to directly measure the insulation condition of the contact network line to the ground in the field environment, reducing the workload of the tester; the wire of the insulation resistance meter is encapsulated in the cavity inside the insulating rod, reducing the interference of the external environment on the insulation resistance meter, and improving the reliability and service life of the entire insulation tester.

[0004] The above-mentioned insulation resistance meter test rod is integrated. Since the contact network is at a high distance from the ground, the length of the test rod is generally set to be longer. However, the longer insulation resistance meter test rod has high requirements on space during transportation and carrying, so it is not convenient to carry. Utility Model Content

[0005] The utility model aims to provide an insulation resistance test rod for preventing electric shock, so as to solve the problem that the existing insulation resistance test rod is inconvenient to carry as mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulation resistance test rod for preventing electric shock, comprising: a first test rod and an insulating handle, a second test rod is arranged on the top of the first test rod, a hook body is fixed on the top of the second test rod, a tester is arranged on the outside of the second test rod, a wire is connected to the top of the tester, one end of the wire is connected to the hook body,

[0007] A first fixed block is fixedly connected to the top of the first test rod, a sliding groove is provided inside the first fixed block, and the sliding groove is slidably connected to the sliding rod, a first spring is sleeved on the outer side of the sliding rod, one end of the first spring is connected to the first fixed block, one end of the sliding rod is fixedly connected to a clamping block, and one side of the clamping block is clamped and connected to the second fixed block.

[0008] Preferably, a card slot matching the card block is provided inside the second fixing block, and one side of the second fixing block is movably connected to the first fixing block via a hinge.

[0009] Preferably, an insulating handle is movably connected to the middle of the first test rod, an annular groove matching the limiting ring is provided inside the insulating handle, and the annular groove is movably connected to the insulating handle.

[0010] Preferably, the inner side of the limiting ring is fixedly connected to the first test rod, and one side of the insulating handle is provided with an arc groove matching the second test rod.

[0011] Preferably, a through slot matching the first test rod is formed inside the insulating handle, and the top of the second fixing block is fixedly connected to the second test rod.

[0012] Preferably, a card plate is fixedly connected to one side of the tester, and the card plate has an "L" shape. A fixing frame is snap-fitted to the outer side of the card plate, and a snap-fitting groove matching the card plate is provided inside the fixing frame.

[0013] Preferably, a protrusion is fixedly connected to the inner side of the fixing frame, and the outer side of the protrusion is slidably connected to the second testing rod.

[0014] Preferably, a sliding groove matching the protrusion is provided inside the second test rod, and a through hole is provided inside the fixing frame, and the through hole is slidably connected to the second test rod.

[0015] Preferably, the top of the clamping plate is fixedly connected to a limiting block, and the outer side of the limiting block is clamped and connected to a fixing plate.

[0016] Preferably, a limiting groove matching the limiting block is provided inside the fixing plate, a second spring is connected to the bottom of the fixing frame, and the bottom of the second spring is connected to the second fixing block.

[0017] Compared with the prior art, the beneficial effect of the test rod of the insulation resistance meter for preventing electric shock is as follows: by pulling the card block to disengage from the engagement with the second fixed block, and then rotating and folding the second test rod, when the second test rod is completely folded and close to the first test rod, the insulating handle can be rotated to dock and engage with the second test rod through the arc groove on one side to complete the folding and storage of the second test rod and the first test rod, and by pulling the fixed frame to move downward, the fixed frame will squeeze the second spring at the bottom when it moves, and when the fixed frame moves downward, it can drive the limit block on the top of the card plate to disengage from the engagement with the fixed plate, and when the fixed frame moves down to the lowest point, the tester can be moved upward to drive the card plate to disengage from the engagement with the fixed frame, and the tester can be taken out, at which time the tester body can be conveniently inspected and repaired.

[0018] 1. When testing the overhead contact network line at a high position in the railway, an insulation resistance meter test rod is generally used. After the test is completed, the card block is pulled out of engagement with the second fixed block, and then the second test rod is rotated and folded. When the second test rod is completely folded and close to the first test rod, the insulating handle can be rotated to dock with the second test rod through the arc groove on one side. The insulating handle made of rubber material will deform after contacting the second test rod and engage with the second test rod to complete the folding and storage of the second test rod and the first test rod. In this way, the insulation resistance meter test rod can be easily folded and carried through the above operation.

[0019] 2. When testing the overhead contact lines at high places in the railway, an insulation resistance meter test rod is generally used. When disassembling the tester, the fixed frame is pulled down to move it. When the fixed frame moves, the second spring at the bottom is squeezed. When the fixed frame moves down, the tester will also move down under the action of gravity, and drive the limit block on the top of the card plate to disengage from the engagement with the fixed plate. When the fixed frame moves down to the lowest point, the tester can be moved up to drive the card plate to disengage from the engagement with the fixed frame, and the tester can be taken out. At this time, the tester body can be conveniently inspected and repaired. In this way, the above operation can facilitate the disassembly and inspection of the tester in the insulation resistance meter test rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the utility model;

[0022] Figure 3 It is an enlarged schematic diagram of A of the utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the insulating handle of the utility model;

[0024] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the second test rod of the utility model.

[0025] In the figure: 1. first test rod; 2. second test rod; 3. hook body; 4. tester; 5. wire; 6. first fixed block; 7. slide bar; 8. first spring; 9. clamping block; 10. second fixed block; 11. insulating handle; 12. limit ring; 13. arc groove; 14. clamping plate; 15. fixing frame; 16. protrusion; 17. limit block; 18. fixing plate; 19. second spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 4 The utility model provides a technical solution: an insulation resistance test rod for preventing electric shock, comprising: a first test rod 1 and an insulating handle 11, a second test rod 2 is arranged on the top of the first test rod 1, a hook body 3 is fixed on the top of the second test rod 2, a tester 4 is arranged on the outside of the second test rod 2, a wire 5 is connected to the top of the tester 4, and one end of the wire 5 is connected to the hook body 3,

[0028] The top of the first test rod 1 is fixedly connected with a first fixed block 6, a sliding groove is provided inside the first fixed block 6, and the sliding groove is slidably connected with the sliding rod 7, a first spring 8 is sleeved on the outer side of the sliding rod 7, one end of the first spring 8 is connected to the first fixed block 6, one end of the sliding rod 7 is fixedly connected with a clamping block 9, and one side of the clamping block 9 is clamped and connected with a second fixed block 10; a clamping groove matching the clamping block 9 is provided inside the second fixed block 10, and one side of the second fixed block 10 is movably connected with the first fixed block 6 through a hinge; an insulating handle 11 is movably connected to the middle part of the first test rod 1, and the insulating handle An annular groove matching the limiting ring 12 is provided inside the hand 11, and the annular groove is movably connected to the insulating handle 11, and the inner side of the limiting ring 12 is fixedly connected to the first test rod 1; an arc groove 13 matching the second test rod 2 is provided on one side of the insulating handle 11; a through groove matching the first test rod 1 is provided inside the insulating handle 11, the top of the second fixed block 10 is fixedly connected to the second test rod 2, the first fixed block 6 forms a rotating structure with the second fixed block 10 through a rotating shaft, the sliding rod 7 and the first fixed block 6 form a sliding structure, and the insulating handle 11 is made of rubber.

[0029] In specific implementation, when testing the overhead contact network line at a high position in the railway, an insulation resistance meter test rod is generally used. When the test rod is used, the second fixed block 10 is driven to rotate by rotating the second test rod 2. When the second fixed block 10 rotates and contacts the inclined surface on one side of the clamping block 9, the clamping block 9 will move and drive the sliding rod 7 on one side to move. When the sliding rod 7 moves, it will squeeze the first spring 8. When the clamping block 9 contacts the clamping groove inside the second fixed block 10, the first spring 8 will reset and push the clamping block 9 to move and engage with the second fixed block 10 to complete the connection between the first test rod 1 and the second test rod 2. At this time, the test rod will be unfolded, and the insulating handle 11 can be held to detect the overhead contact network. The insulating handle 11 made of rubber can prevent the user from getting an electric shock.

[0030] When the detection is completed, the card block 9 is pulled out of the engagement with the second fixed block 10, and then the second test rod 2 is rotated and folded. When the second test rod 2 is completely folded and close to the first test rod 1, the insulating handle 11 can be rotated to dock with the second test rod 2 through the arc groove 13 on one side. The insulating handle 11 made of rubber material will be deformed after contacting the second test rod 2 and engage with the second test rod 2 to complete the folding and storage of the second test rod 2 and the first test rod 1. The above operation can facilitate the folding and carrying of the insulation resistance meter test rod.

[0031] See also Figure 1 , Figure 2 and Figure 5 A card plate 14 is fixedly connected to one side of the tester 4, and the shape of the card plate 14 is "L"-shaped. The outer side of the card plate 14 is snap-connected with a fixing frame 15, and a snap-fitting groove matching the card plate 14 is provided inside the fixing frame 15; a protrusion 16 is fixedly connected to the inner side of the fixing frame 15, and the outer side of the protrusion 16 is slidably connected to the second test rod 2; a sliding groove matching the protrusion 16 is provided inside the second test rod 2, and a through hole is provided inside the fixing frame 15, and the through hole is slidably connected to the second test rod 2; a limited block 17 is fixedly connected to the top of the card plate 14, and a fixed plate 18 is snap-connected to the outer side of the limited block 17; a limited groove matching the limited block 17 is provided inside the fixed plate 18, and a second spring 19 is connected to the bottom of the fixing frame 15, and the bottom of the second spring 19 is connected to the second fixed block 10, the card plate 14 and the fixing frame 15 constitute a snap-fitting structure, and the second test rod 2 and the fixing frame 15 constitute a sliding structure.

[0032] In specific implementation, when testing the overhead contact network line at a high position in the railway, an insulation resistance test rod is generally used. When the tester 4 is disassembled, the fixing frame 15 is pulled downward. When the fixing frame 15 moves, the second spring 19 at the bottom is squeezed. When the fixing frame 15 moves downward, the tester 4 will also move downward under the action of gravity, and drive the limit block 17 on the top of the card plate 14 to disengage from the engagement with the fixing plate 18. When the fixing frame 15 moves down to the lowest point, the tester 4 can be moved upward to drive the card plate 14 to disengage from the engagement with the fixing frame 15, and the tester 4 can be taken out. At this time, the tester body 4 can be conveniently inspected.

[0033] After the inspection and maintenance is completed, the fixing frame 15 can be pressed down, and the card plate 14 on one side of the tester body 4 can be inserted into the engagement groove of the fixing frame 15, and then the fixing frame 15 can be released. At this time, the second spring 19 will be reset, pushing the fixing frame 15 to move up, and the fixing frame 15 can drive the tester 4, the card plate 14 and the limit block 17 to move up, so that the limit block 17 and the fixing plate 18 are engaged, completing the installation limit of the tester 4. In this way, the above operation can facilitate the disassembly and inspection of the tester 4 in the insulation resistance test rod.

[0034] To sum up: when using the insulation resistance meter test rod for preventing electric shock, first hang the hook body 3 at the top of the second test rod 2 on the contact network line, and hang the grounding hook at the bottom of the tester 4 on the rail, and then the first test rod 1 can be moved to drive the second test rod 2 and the hook body 3 to move. After the tester 4 is connected to the hook body 3 through the wire 5, the line can be detected. This is the feature of the insulation resistance meter test rod for preventing electric shock. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An insulation resistance test rod for preventing electric shock, comprising: A first test rod (1) and an insulating handle (11), characterized in that a second test rod (2) is arranged on the top of the first test rod (1), a hook body (3) is fixed on the top of the second test rod (2), a tester (4) is arranged on the outside of the second test rod (2), a wire (5) is connected to the top of the tester (4), one end of the wire (5) is connected to the hook body (3), The top of the first test rod (1) is fixedly connected to a first fixed block (6), a sliding groove is provided inside the first fixed block (6), and the sliding groove is slidably connected to a sliding rod (7), a first spring (8) is sleeved on the outer side of the sliding rod (7), one end of the first spring (8) is connected to the first fixed block (6), one end of the sliding rod (7) is fixedly connected to a clamping block (9), and one side of the clamping block (9) is clamped and connected to a second fixed block (10).

2. The insulation resistance test rod for preventing electric shock according to claim 1, characterized in that: A slot matching the clamping block (9) is provided inside the second fixing block (10), and one side of the second fixing block (10) is movably connected to the first fixing block (6) via a hinge.

3. The insulation resistance test rod for preventing electric shock according to claim 2, characterized in that: An insulating handle (11) is movably connected to the middle of the first test rod (1), an annular groove matching the limiting ring (12) is provided inside the insulating handle (11), and the annular groove is movably connected to the insulating handle (11).

4. The insulation resistance test rod for preventing electric shock according to claim 3, characterized in that: The inner side of the limiting ring (12) is fixedly connected to the first test rod (1), and one side of the insulating handle (11) is provided with an arc-shaped groove (13) matching the second test rod (2).

5. The insulation resistance test rod for preventing electric shock according to claim 4, characterized in that: A through slot matching the first test rod (1) is provided inside the insulating handle (11), and the top of the second fixing block (10) is fixedly connected to the second test rod (2).

6. The insulation resistance test rod for preventing electric shock according to claim 1, characterized in that: A card plate (14) is fixedly connected to one side of the tester (4), and the card plate (14) has an "L"-shaped appearance. A fixing frame (15) is snap-fitted to the outer side of the card plate (14), and a snap-fitting groove matching the card plate (14) is provided inside the fixing frame (15).

7. The insulation resistance test rod for preventing electric shock according to claim 6, characterized in that: A protrusion (16) is fixedly connected to the inner side of the fixing frame (15), and the outer side of the protrusion (16) is slidably connected to the second testing rod (2).

8. The insulation resistance test rod for preventing electric shock according to claim 7, characterized in that: The second test rod (2) is provided with a sliding groove matching the protrusion (16) inside, and the fixing frame (15) is provided with a through hole inside, and the through hole is slidably connected to the second test rod (2).

9. The insulation resistance test rod for preventing electric shock according to claim 8, characterized in that: The top of the clamping plate (14) is fixedly connected to a limiting block (17), and the outer side of the limiting block (17) is clamped and connected to a fixing plate (18).

10. The insulation resistance test rod for preventing electric shock according to claim 9, characterized in that: A limiting groove matching the limiting block (17) is provided inside the fixing plate (18); a second spring (19) is connected to the bottom of the fixing frame (15); and the bottom of the second spring (19) is connected to the second fixing block (10).

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