Connecting wire take-up and pay-off device for loop resistance tester

Abstract

The utility model relates to the technical field of related accessories of resistance testers, and provides a loop resistance tester connecting line take-up and pay-off device which comprises a box body and an upper cover, a plug-in mounting structure is arranged between the upper cover and the box body, a winding assembly is arranged in the box body and comprises a circular column, a winding disc is rotationally sleeved and connected outside the circular column, and the winding disc is connected with the upper cover. An outer ring groove is formed in the periphery of the surface of the circular column, a plurality of clamping grooves are formed in the upper end face and the lower end face in the outer ring groove, and an inner block is arranged on the inner side surface of the winding disc. According to the technical scheme, the problems that in the prior art, existing resistance testers are all carried through a box, connecting wires are independently rolled up and then placed together, the connecting wires need to be fixed through bandages every time, the connecting wires are mixed for use all the time, the winding situation is prone to occurring, and folding and unfolding are not convenient are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of accessories for resistance testers, specifically to a cable winding and unwinding device for a loop resistance tester. Background Technology

[0002] A loop resistance tester, also known as a contact resistance tester, is an instrument specifically designed to measure the contact and loop resistance of switch control equipment.

[0003] Current resistance testers are carried in cases, with the connecting wires rolled up separately and stored together. They need to be secured with straps each time, and since they are always used together, they are prone to tangling, making them inconvenient to store and handle.

[0004] Therefore, improvements have been made to address the aforementioned issues. Utility Model Content

[0005] This utility model proposes a cable winding and unwinding device for a loop resistance tester, which solves the problem that current resistance testers are carried in boxes, and the cables are rolled up separately and placed together. Each time, they need to be secured with straps, and they are always used together, which easily leads to tangling and inconvenience in winding and unwinding.

[0006] The technical solution of this utility model is as follows: including...

[0007] The box body and the top cover, wherein an insert assembly is provided between the top cover and the box body;

[0008] A winding assembly disposed within the housing;

[0009] The winding assembly includes a circular column, and a take-up reel is rotatably connected to the outside of the circular column. An outer ring groove is formed around the surface of the circular column, and several slots are formed on both the upper and lower end faces of the outer ring groove. An inner block is provided on the inner surface of the take-up reel.

[0010] As a further technical solution, the upper and lower ends of the inner block are movably connected with locking blocks, and the locking blocks are connected by built-in springs. The locking blocks are inserted into the locking slots, and a pair of elastic telescopic rods are provided inside the box.

[0011] As a further technical solution, the output end of the elastic telescopic rod is connected to a support frame, an inner frame is provided on the inner surface of the box, an inlet frame is slidably connected to the inner frame, and a pair of first springs are fitted on the inner frame.

[0012] As a further technical solution, a partition is provided inside the box, and a notch is opened on the surface of the partition. A pair of clips are provided on both sides of the surface of the partition, and the clips are located on both sides of the notch.

[0013] As a further technical solution, the insertion assembly includes a pair of rectangular tubes, which are fixed at both ends of the inner surface of the box, and a pair of insert rods are provided on the surface of the upper cover, with the insert rods inserted into the rectangular tubes.

[0014] As a further technical solution, a second spring is provided inside the rectangular tube, a fixed hook is provided on the surface of the upper cover, a movable hook is movably connected to the side surface of the box, a pressing plate is provided at one end of the movable hook, and a pair of third springs are connected between the pressing plate and the side surface of the box.

[0015] As a further technical solution, the top cover is matched with the box structure.

[0016] As a further technical solution, the sleeve has a semi-circular structure with a flared opening.

[0017] As a further technical solution, the surface of the winding reel is provided with an anti-slip layer, the surface of the anti-slip layer is provided with a limiting groove, and the inner surface of the upper cover is provided with a limiting block.

[0018] As a further technical solution, both the limiting groove and the limiting block are polygonal structures.

[0019] The working principle and beneficial effects of this utility model are as follows:

[0020] 1. This utility model is equipped with a winding assembly. Through the interaction of structures such as a circular column, a winding reel, a slot, a locking block, an internal spring, a support mechanism, an elastic telescopic rod, an inlet frame, and a sleeve, the connecting wire and the detection pen can be completely taken into the box and wound up. After winding, it can be kept in place and is easy to take out.

[0021] 2. This utility model is equipped with an insertion assembly. Through the interaction of the rectangular tube, the insertion rod, the second spring, the fixed hook, the movable hook and the third spring, the top cover can completely cover the box and can pop outward when opened, making it easy to remove the top cover. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is an isometric drawing of the present invention;

[0025] Figure 3 This is an isometric view of the upper cover portion of this utility model;

[0026] Figure 4 This is an isometric sectional view of the present invention;

[0027] Figure 5 This is an isometric sectional view of the present invention from another perspective;

[0028] Figure 6 Appendix to this utility model Figure 5 Enlarged view of part A in the middle;

[0029] In the diagram: 1. Box body; 2. Top cover; 3. Winding assembly; 3-1. Circular column; 3-2. Rewinding reel; 3-3. Outer ring groove; 3-4. Slot; 3-5. Inner block; 3-6. Slot block; 3-7. Built-in spring; 3-8. Elastic telescopic rod; 3-9. Support frame; 3-10. Inner frame; 3-11. Guide frame; 3-12. First spring; 3-13. Partition; 3-14. Notch; 3-15. Slot; 4. Insertion assembly; 4-1. Rectangular tube; 4-2. Insert rod; 4-3. Second spring; 4-4. Fixed hook; 4-5. Moving hook; 4-6. Pressing plate; 4-7. Third spring; 5. Anti-slip layer; 6. Limiting groove; 7. Limiting block. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0031] like Figures 1-6 As shown, this embodiment proposes a loop resistance tester connection cable retraction device, including...

[0032] Box body 1 and top cover 2, with an insert assembly 4 provided between the top cover 2 and box body 1;

[0033] Winding assembly 3 is disposed inside the housing 1;

[0034] The winding assembly 3 includes a circular column 3-1, to which a take-up reel 3-2 is rotatably mounted. An outer annular groove 3-3 is formed around the surface of the circular column 3-1. Several slots 3-4 are formed on both the upper and lower ends of the outer annular groove 3-3. An inner block 3-5 is provided on the inner surface of the take-up reel 3-2. Locking blocks 3-6 are movably mounted on both the upper and lower ends of the inner block 3-5. An internal spring 3-7 connects the locking blocks 3-6. The locking blocks 3-6 are inserted into the slots 3-4. The box body 1 contains... A pair of elastic telescopic rods 3-8 are provided, and the output end of the elastic telescopic rods 3-8 is connected to a support frame 3-9. An inner frame 3-10 is provided on the inner surface of the box body 1. An inlet frame 3-11 is slidably connected to the inner frame 3-10. A pair of first springs 3-12 are installed on the inner frame 3-10. A partition 3-13 is provided inside the box body 1. A notch 3-14 is opened on the surface of the partition 3-13. A pair of clips 3-15 are provided on both sides of the surface of the partition 3-13. The clips 3-15 are located on both sides of the notch 3-14.

[0035] In this embodiment, to achieve the effect of winding up the connecting wire, a winding assembly 3 is designed. A circular column 3-1 is set inside the housing 1, and a take-up reel 3-2 is rotatably connected to its exterior. The take-up reel 3-2 is used to wind up the connecting wire. An outer ring groove 3-3 is formed around the outer surface of the column. Multiple evenly distributed slots 3-4 are formed on both the upper and lower end faces of the outer ring groove 3-3. An inner block 3-5 is set on the inner surface of the take-up reel 3-2. A locking block 3-6 is movably fitted to both the upper and lower ends of the inner block 3-5, and an internal spring 3-7 is set between the locking blocks 3-6. The locking blocks 3-6 are engaged in the slots 3-4, which limits the movement of the take-up reel 3-2. Two elastic telescopic rods 3-8 with inclined angles are set inside the housing 1. A [missing information - likely a design feature] is provided at the output end of the elastic telescopic rods 3-8. A support frame 3-9 is provided. Through the retraction function of the elastic telescopic rod 3-8, the support frame 3-9 can press the connecting wire tightly onto the take-up reel 3-2. An inner frame 3-10 is also provided inside the box body 1. An inlet frame 3-11 and a first spring 3-12 are slidably connected to the inner frame 3-10. One end of the inlet frame 3-11 is inclined outward. One end of the connecting wire can be inserted between the inlet frame 3-11 and the take-up reel 3-2 at the inclined transition point. When the take-up reel 3-2 rotates, the connecting wire can be held on the take-up reel 3-2 by the inlet frame 3-11 and the support frame 3-9. A partition 3-13 with a notch 3-14 is provided at one end of the box body 1. Two clips 3-15 are provided on both sides of the surface of the partition 3-13 for inserting one end of the test pen of the connecting wire.

[0036] Furthermore, the insertion assembly 4 includes a pair of rectangular tubes 4-1, which are fixed to both ends of the inner surface of the box body 1. A pair of insertion rods 4-2 are provided on the surface of the upper cover 2, and the insertion rods 4-2 are inserted into the rectangular tubes 4-1. A second spring 4-3 is provided inside the rectangular tubes 4-1. A fixed hook 4-4 is provided on the surface of the upper cover 2. A movable hook 4-5 is movably connected to the side surface of the box body 1. A pressing plate 4-6 is provided at one end of the movable hook 4-5. A pair of third springs 4-7 are connected between the pressing plate 4-6 and the side surface of the box body 1.

[0037] In this embodiment, in order to achieve the connection effect between the upper cover 2 and the box body 1, an insertion assembly 4 is designed. Two rectangular tubes 4-1 are provided at the bottom inner part of the box body 1. Two insertion rods 4-2 are provided on the surface of the upper cover 2 for insertion into the rectangular tubes 4-1. A second spring 4-3 is provided inside the rectangular tubes 4-1. The insertion rods 4-2 can be popped outward by the elastic force of the second spring 4-3. A fixed hook 4-4 is provided on the surface of the upper cover 2. A movable hook 4-5 is movably fitted on the side surface of the box body 1. A pressing plate 4-6 is provided at one end of the movable hook 4-5. Two third springs 4-7 are connected between the pressing plate 4-6 and the side surface of the box body 1. The movable hook 4-5 can be connected to the fixed hook 4-4 to fix the upper cover 2 and the box body 1. The movable hook 4-5 can be separated from the fixed hook 4-4 by pushing the pressing plate 4-6.

[0038] Furthermore, the top cover 2 is structurally compatible with the box body 1.

[0039] In this embodiment, the same structure is used to ensure that the top cover 2 and the box body 1 fit together completely.

[0040] Furthermore, the sleeve 3-15 has a semi-circular structure with a trumpet-shaped opening.

[0041] In this embodiment, the connecting wire can be secured between the sleeve 3-15 using a trumpet-shaped semi-circular structure.

[0042] Furthermore, the surface of the winding reel 3-2 is provided with an anti-slip layer 5, and a limiting groove 6 is formed on the surface of the anti-slip layer 5. A limiting block 7 is provided on the inner surface of the upper cover 2.

[0043] In this embodiment, by providing an anti-slip layer 5, it is convenient to rotate the take-up reel 3-2 by twisting the anti-slip layer 5, and by connecting the limit groove 6 and the limit block 7, the take-up reel 3-2 can be fixed while the upper cover 2 is closed, so as to prevent the take-up reel 3-2 from becoming loose when carried.

[0044] Furthermore, both the limiting groove 6 and the limiting block 7 are polygonal structures.

[0045] In this embodiment, the polygonal structure facilitates better insertion when the limiting groove 6 and the limiting block 7 are connected.

[0046] When needed, push the movable hook 4-5 and the fixed hook 4-4 apart by pressing the plate 4-6. After separation, the second spring 4-3 inside the rectangular tube 4-1 can pop the insert rod 4-2 outward. Then, the top cover 2 can be removed. Insert one end of the connecting wire between the guide frame 3-11 and the take-up reel 3-2. Then, rotate the take-up reel 3-2 by twisting the anti-slip layer 5. During the rotation, the connecting wire will be wound up. Insert the other end of the connecting wire into the notch 3-14 of the partition 3-13. After the connecting wire is completely wound up, insert the test pen of the connecting wire into the sleeve 3-15. Then, insert the top cover 2 back in.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A loop resistance tester connecting cord take-up device characterized by, include Box body (1) and top cover (2), with an insert assembly (4) provided between the top cover (2) and the box body (1); A winding assembly (3) is disposed inside the housing (1); The winding assembly (3) includes a circular column (3-1), and a take-up reel (3-2) is rotatably connected to the outside of the circular column (3-1). An outer ring groove (3-3) is formed around the surface of the circular column (3-1). Several slots (3-4) are formed on both the upper and lower end faces of the outer ring groove (3-3). An inner block (3-5) is provided on the inner surface of the take-up reel (3-2).

2. The loop resistance tester connecting cord retraction device of claim 1, wherein, The inner block (3-5) is movably connected to the upper and lower ends of the locking block (3-6), and the locking blocks (3-6) are connected by an internal spring (3-7). The locking blocks (3-6) are inserted into the locking slot (3-4), and a pair of elastic telescopic rods (3-8) are provided inside the box body (1).

3. The loop resistance tester connection cable take-up and retraction device according to claim 2, characterized in that, The output end of the elastic telescopic rod (3-8) is connected to a support frame (3-9), and an inner frame (3-10) is provided on the inner surface of the box (1). An inlet frame (3-11) is slidably connected to the inner frame (3-10), and a pair of first springs (3-12) are fitted on the inner frame (3-10).

4. The loop resistance tester connecting cord retraction device of claim 3, wherein, The box body (1) is provided with a partition (3-13), and the surface of the partition (3-13) is provided with a notch (3-14). A pair of clips (3-15) are provided on both sides of the surface of the partition (3-13), and the clips (3-15) are located on both sides of the notch (3-14).

5. The loop resistance tester connecting cord retraction device of claim 1, wherein, The insertion assembly (4) includes a pair of rectangular tubes (4-1), which are fixed at both ends of the inner surface of the box (1). A pair of insert rods (4-2) are provided on the surface of the upper cover (2), and the insert rods (4-2) are inserted into the rectangular tubes (4-1).

6. The circuit resistance tester connecting cord retractor of claim 5, wherein, A second spring (4-3) is provided inside the rectangular tube (4-1), a fixed hook (4-4) is provided on the surface of the upper cover (2), a movable hook (4-5) is movably connected to the side surface of the box body (1), a pressing plate (4-6) is provided at one end of the movable hook (4-5), and a pair of third springs (4-7) are connected between the pressing plate (4-6) and the side surface of the box body (1).

7. The loop resistance tester connecting cord retraction device of claim 1, wherein, The top cover (2) is structurally compatible with the box body (1).

8. The circuit resistance tester connecting cord retractor of claim 4, wherein, The sleeve (3-15) has a semi-circular structure with a trumpet-shaped opening.

9. The loop resistance tester connecting cord retraction device of claim 1, wherein, The surface of the winding reel (3-2) is provided with an anti-slip layer (5), and a limiting groove (6) is formed on the surface of the anti-slip layer (5). A limiting block (7) is provided on the inner surface of the upper cover (2).

10. The circuit resistance tester connecting cord retractor of claim 9, wherein, Both the limiting groove (6) and the limiting block (7) are polygonal structures.

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