Resistance tester connecting line take-up and pay-off device

Abstract

The utility model belongs to the technical field of resistance tester connecting wire take-up and pay-off, and particularly relates to a resistance tester connecting wire take-up and pay-off device which comprises a bottom plate, the upper side of the bottom plate is connected with a take-up and pay-off mechanism, the take-up and pay-off mechanism comprises a take-up and pay-off unit and a limiting unit, the take-up and pay-off unit is arranged on the left side of the upper side of the bottom plate, and the limiting unit is arranged on the left side of the bottom plate. And the limiting unit is arranged on the right side of the upper side of the bottom plate. When the connecting wire winding and unwinding device for the resistance tester is used and the connecting wire of the resistance tester is wound, an output shaft of a motor is started to rotate to drive a rotating rod to rotate, meanwhile, a winding shaft rotates, the connecting wire penetrating through a wire penetrating hole in a sleeve plate is wound, and meanwhile a driving belt wheel at the front end of the rotating rod rotates; and a belt is driven to rotate, so that a driven belt wheel rotates, a reciprocating screw rod is driven to rotate, a moving block on the outer side reciprocates front and back, a sleeve plate is driven to drive a wound connecting wire to reciprocate, and the connecting wire is uniformly laid on the outer side of a winding shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance tester connecting wire retracting and releasing, in particular to a resistance tester connecting wire retracting and releasing device. Background Art

[0002] Resistance tester is an indispensable tool for electrical safety inspection and grounding project completion acceptance. It includes ground resistance tester, insulation resistance tester, DC resistance meter, surface resistance tester and loop resistance tester. Loop resistance meter (transformer loop resistance tester) is suitable for testing the contact resistance value of the main contact of high and low voltage switches, the DC resistance value of high and low voltage cable lines, etc. The intelligent loop resistance tester adopts 100A constant current output. The maximum output voltage is 10V (2-3 times that of conventional instruments) and can use thin test wires, which greatly reduces the labor intensity of on-site testers. The entire test process is automatically implemented by single-chip control, with high accuracy, good reproducibility, single-button operation, simple and easy operation, and LCD display of test data.

[0003] When the existing tester stores the connecting wire, the connecting wire will be repeatedly wound at a certain position on the surface of the reel, so that the connecting wire will be tangled inside the resistance tester.

[0004] For example, a wire-reeling and reeling device of a resistance tester disclosed in Chinese patent publication No. CN216956175U is provided with a wire-reeling assembly, which enables the connecting wire to be evenly wound on the surface of a reel when the connecting wire is reeled in, thereby preventing the connecting wire from becoming tangled and entangled inside the resistance tester. At the same time, the connecting wire can be limited by the assembly, thereby making it more convenient to reel in the wire, thereby improving the practicability of the device.

[0005] However, the wire-reeling device is not provided with a device for compressing the wound connecting wire, so that the wound connecting wire is prone to become loose.

[0006] For this reason, we urgently need to provide a resistance tester connecting line retracting and releasing device. Utility Model Content

[0007] The utility model aims to provide a resistance tester connecting wire retracting and releasing device to solve the problem that the retracting and releasing device proposed in the above background technology is not provided with a device for pressing the reeled connecting wire, so that the reeled connecting wire is easy to become loose.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a resistance tester connecting line retracting and releasing device, comprising a base plate, the upper side of which is connected to a retracting and releasing mechanism, the retracting and releasing mechanism comprising a retracting and releasing unit and a limiting unit, the retracting and releasing unit being arranged on the upper left side of the base plate, and the limiting unit being arranged on the upper right side of the base plate.

[0009] The retracting and unwinding unit includes a first front support plate, a first rear support plate, a first bearing, a rotating rod, a motor, a winding shaft, a spring, a first limiting rod, a slider, a round rod and a pressure roller, wherein the first front support plate is fixedly connected to the upper left front end of the bottom plate, the first rear support plate is fixedly connected to the upper left rear end of the bottom plate, the first bearing is fixedly connected to the inner part of the upper ends of the first front support plate and the first rear support plate, the rotating rod is fixedly connected to the inner side of the first bearing, the motor is fixedly connected to the rear upper end of the first rear support plate, the winding shaft is fixedly connected to the outer side of the rotating rod, the spring is connected to the inside of the winding shaft, the first limiting rod is connected to the inside of the winding shaft, the slider is fixedly connected to the lower end of the spring, the round rod is fixedly connected to the side adjacent to the slider at the front and rear ends, and the pressure roller is connected to the outer side of the round rod.

[0010] A further improvement is that a slide groove is provided above the left and right ends of the winding shaft, a first limiting hole is provided in the middle of the slider, the upper end of the spring is fixedly connected to the inner top of the slide groove, the first limiting rod is vertically fixedly connected to the inner middle of the slide groove, the outer side of the first limiting rod is slidably connected to the inner side of the first limiting hole, and the outer side of the slider is slidably connected to the inner side of the slide groove. Therefore, when the first limiting rod is elastically driven to drive the slider to move, it can only be located in the slide groove and slide along the outer side of the first limiting rod, thereby limiting the movement of the slider.

[0011] A further improvement is that a rotating hole is opened in the middle of the pressure roller, the outer side of the round rod is rotatably connected to the inner side of the rotating hole, the front and rear sides of the pressure roller are slidably connected to the side adjacent to the two sliders, the outer side of the pressure roller abuts against the outer side of the connecting wire wound on the outer side of the winding shaft, and the rear end of the rotating rod is fixedly connected to the front end of the output shaft of the motor. Therefore, when the winding shaft collects the connecting wire, the spring pushes the slider, which pushes the pressure roller to keep in contact with the outer side of the collected connecting wire, so that the pressure roller rolls and presses the connecting wire collected on the outer side of the winding shaft.

[0012] A further improvement is that the limiting unit includes a second front support plate, a second rear support plate, a second bearing, a reciprocating screw, a second limiting rod, a moving block, a sleeve plate and a transmission member, the second front support plate is fixedly connected to the upper right front end of the base plate, the second rear support plate is fixedly connected to the upper right rear end of the base plate, the second bearing is fixedly connected to the middle position of the inner upper ends of the second front support plate and the second rear support plate, the reciprocating screw is fixedly connected to the inner side of the second bearing, the second limiting rod is fixedly connected to the lower end of one side adjacent to the second front support plate and the second rear support plate, the moving block is connected to the outer end of the reciprocating screw, the sleeve plate is fixedly connected to the upper middle position of the moving block, and the transmission member is connected to the rotating rod and the front end of the reciprocating screw.

[0013] A further improvement is that a threaded hole is provided in the middle of the upper end of the moving block, a second limiting hole is provided in the middle of the lower end of the moving block, the outer side of the reciprocating screw is threadedly connected to the inner side of the threaded hole, and the outer side of the second limiting rod is slidably connected to the inner side of the second limiting hole. Thus, when the reciprocating screw rotates, the moving block can be driven to move forward and backward along the outer sides of the reciprocating screw and the second limiting rod.

[0014] A further improvement is that a threading hole is provided at the upper end of the sleeve plate, and the inner side of the threading hole is slidably connected to the outer side of the connecting wire to be retracted. Therefore, during the process of retracting the connecting wire, the moving block can move back and forth to drive the connecting wire in the upper sleeve plate to move back and forth, so that the connecting wire is evenly wound to the outer side of the reel.

[0015] A further improvement is that an anti-skid pad is fixedly connected to the outer side of the pressure roller, so that the outer side of the pressure roller contacts the outer side of the connecting wire wound on the outer side of the winding shaft, and when the connecting wire is pressed, the anti-skid pad on the outer side of the pressure roller contacts the outer side of the connecting wire, so that the connecting wire can be pressed more firmly.

[0016] In summary, the present application discloses a resistance tester connecting wire retracting and releasing device.

[0017] According to the technical solution, when the winding shaft collects the connecting wire, the sliding block is pushed by the spring, which pushes the pressure roller to keep in contact with the outside of the collected connecting wire, so that the pressure roller presses the connecting wire collected on the outside of the winding shaft while rolling.

[0018] Furthermore, during the process of retracting and releasing the connecting wire, the moving block can move back and forth, thereby driving the connecting wire in the upper sleeve plate to move back and forth, so that the connecting wire is evenly wound to the outside of the winding shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the retractable unit of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the reel of the utility model;

[0022] Figure 4 This is a schematic diagram of the round rod structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the limiting unit of the utility model.

[0024] In the figure: 1, bottom plate; 201, first front support plate; 202, first rear support plate; 203, first bearing; 204, rotating rod; 205, motor; 206, winding shaft; 207, spring; 208, first limiting rod; 209, sliding block; 210, round rod; 211, pressure roller; 301, second front support plate; 302, second rear support plate; 303, second bearing; 304, reciprocating screw; 305, second limiting rod; 306, moving block; 307, sleeve plate; 308, transmission member. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A resistance tester connecting line retracting and releasing device comprises a base plate 1, the upper side of the base plate 1 is connected with a retracting and releasing mechanism, the retracting and releasing mechanism comprises a retracting and releasing unit and a limiting unit, the retracting and releasing unit is arranged on the upper left side of the base plate 1, and the limiting unit is arranged on the upper right side of the base plate 1.

[0029] The retracting and unwinding unit includes a first front support plate 201, a first rear support plate 202, a first bearing 203, a rotating rod 204, a motor 205, a reel 206, a spring 207, a first limit rod 208, a slider 209, a round rod 210 and a pressure roller 211. The first front support plate 201 is fixedly connected to the upper left front end of the bottom plate 1, the first rear support plate 202 is fixedly connected to the upper left rear end of the bottom plate 1, and the first bearing 203 is fixedly connected to the upper ends of the first front support plate 201 and the first rear support plate 202. Internally, the rotating rod 204 is fixedly connected to the inner side of the first bearing 203, the motor 205 is fixedly connected to the upper end of the rear side of the first rear support plate 202, the winding shaft 206 is fixedly connected to the outer side of the rotating rod 204, the spring 207 is connected to the inside of the winding shaft 206, the first limiting rod 208 is connected to the inside of the winding shaft 206, the slider 209 is fixedly connected to the lower end of the spring 207, the round rod 210 is fixedly connected to the adjacent side of the slider 209 at the front and rear ends, and the pressure roller 211 is connected to the outer side of the round rod 210.

[0030] A slide groove is provided above the left and right ends of the reel 206, a first limiting hole is provided in the middle of the slider 209, the upper end of the spring 207 is fixedly connected to the inner top of the slide groove, the first limiting rod 208 is vertically fixedly connected to the inner middle of the slide groove, the outer side of the first limiting rod 208 is slidably connected to the inner side of the first limiting hole, and the outer side of the slider 209 is slidably connected to the inner side of the slide groove. Therefore, when the first limiting rod 208 is elastically driven to drive the slider 209 to move, it can only be located in the slide groove and slide along the outer side of the first limiting rod 208, thereby limiting the movement of the slider 209.

[0031] A rotating hole is provided in the middle of the pressure roller 211, the outer side of the round rod 210 is rotatably connected to the inner side of the rotating hole, the front and rear sides of the pressure roller 211 are slidably connected to the side adjacent to the two sliders 209, the outer side of the pressure roller 211 abuts against the outer side of the connecting wire wound on the outer side of the winding shaft 206, and the rear end of the rotating rod 204 is fixedly connected to the front end of the output shaft of the motor 205. Therefore, when the winding shaft 206 collects the connecting wire, the spring 207 pushes the slider 209, which pushes the pressure roller 211 to keep in contact with the outer side of the collected connecting wire, so that the pressure roller 211 rolls and presses the connecting wire collected on the outer side of the winding shaft 206.

[0032] Embodiment 2:

[0033] On the basis of Example 1: the limiting unit includes a second front support plate 301, a second rear support plate 302, a second bearing 303, a reciprocating screw 304, a second limiting rod 305, a moving block 306, a sleeve plate 307 and a transmission member 308, the second front support plate 301 is fixedly connected to the upper right front end of the base plate 1, the second rear support plate 302 is fixedly connected to the upper right rear end of the base plate 1, the second bearing 303 is fixedly connected to the middle position of the inner upper end of the second front support plate 301 and the second rear support plate 302, the reciprocating screw 304 is fixedly connected to the inner side of the second bearing 303, the second limiting rod 305 is fixedly connected to the lower end of the adjacent side of the second front support plate 301 and the second rear support plate 302, the moving block 306 is connected to the outer end of the reciprocating screw 304, the sleeve plate 307 is fixedly connected to the upper middle position of the moving block 306, and the transmission member 308 is connected to the rotating rod 204 and the front end of the reciprocating screw 304.

[0034] A threaded hole is provided in the middle of the upper end of the moving block 306, a second limiting hole is provided in the middle of the lower end of the moving block 306, the outer side of the reciprocating screw rod 304 is threadedly connected to the inner side of the threaded hole, and the outer side of the second limiting rod 305 is slidably connected to the inner side of the second limiting hole. Thus, when the reciprocating screw rod 304 rotates, the moving block 306 can be driven to move forward and backward along the outer sides of the reciprocating screw rod 304 and the second limiting rod 305.

[0035] A threading hole is provided at the upper end of the sleeve plate 307, and the inner side of the threading hole is slidably connected to the outer side of the connecting wire to be retracted. Therefore, during the process of retracting the connecting wire, the moving block 306 moves back and forth, which can drive the connecting wire in the upper sleeve plate 307 to move back and forth, so that the connecting wire is evenly wound to the outer side of the reel 206.

[0036] The transmission member 308 includes a driving pulley, a driven pulley and a belt. The driving pulley is fixedly connected to the front outer side of the rotating rod 204, the driven pulley is fixedly connected to the front outer side of the transmission member 308, and the belt is sleeved on the outer ends of the driving pulley and the driven pulley.

[0037] Embodiment three:

[0038] Based on Example 1:

[0039] Working principle: When in use, when the resistance tester connecting wire is wound up, the motor 205 is started and its output shaft rotates to drive the rotating rod 204 to rotate, while the winding shaft 206 rotates, and the connecting wire passing through the threading hole in the sleeve plate 307 is wound up. At the same time, the active pulley at the front end of the rotating rod 204 rotates, driving the belt to rotate so that the driven pulley rotates, driving the reciprocating screw rod 304 to rotate, so that the outer moving block 306 moves back and forth, driving the sleeve plate 307 to drive the wound connecting wire to move back and forth, so that the connecting wire is evenly laid on the outside of the winding shaft 206.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A resistance tester connecting line retracting and releasing device, comprising a bottom plate (1), characterized in that: The upper side of the bottom plate (1) is connected to a retractable mechanism, the retractable mechanism comprising a retractable unit and a limit unit, the retractable unit being arranged on the upper left side of the bottom plate (1), and the limit unit being arranged on the upper right side of the bottom plate (1); The retracting and unwinding unit comprises a first front support plate (201), a first rear support plate (202), a first bearing (203), a rotating rod (204), a motor (205), a reel (206), a spring (207), a first limit rod (208), a slider (209), a round rod (210) and a pressure roller (211); the first front support plate (201) is fixedly connected to the upper left front end of the bottom plate (1); the first rear support plate (202) is fixedly connected to the upper left rear end of the bottom plate (1); the first bearing (203) is fixedly connected to the upper ends of the first front support plate (201) and the first rear support plate (202). The rotating rod (204) is fixedly connected to the inner side of the first bearing (203), the motor (205) is fixedly connected to the upper end of the rear side of the first rear support plate (202), the winding shaft (206) is fixedly connected to the outer side of the rotating rod (204), the spring (207) is connected to the inside of the winding shaft (206), the first limiting rod (208) is connected to the inside of the winding shaft (206), the slider (209) is fixedly connected to the lower end of the spring (207), the round rod (210) is fixedly connected to the adjacent side of the slider (209) at the front and rear ends, and the pressure roller (211) is connected to the outer side of the round rod (210).

2. A resistance tester connecting wire retracting and releasing device according to claim 1, characterized in that: A sliding groove is opened above the left and right ends of the winding shaft (206), and a first limiting hole is opened in the middle position of the slider (209). The upper end of the spring (207) is fixedly connected to the inner top end of the sliding groove, and the first limiting rod (208) is vertically fixedly connected to the inner middle position of the sliding groove. The outer side of the first limiting rod (208) is slidably connected to the inner side of the first limiting hole, and the outer side of the slider (209) is slidably connected to the inner side of the sliding groove.

3. A resistance tester connecting wire retracting and releasing device according to claim 1, characterized in that: A rotating hole is provided in the middle of the pressure roller (211); the outer side of the round rod (210) is rotatably connected to the inner side of the rotating hole; the front and rear sides of the pressure roller (211) are slidably connected to the side adjacent to the two sliders (209); the outer side of the pressure roller (211) abuts against the outer side of the connecting line of the winding shaft (206); and the rear end of the rotating rod (204) is fixedly connected to the front end of the output shaft of the motor (205).

4. A resistance tester connecting wire retracting and releasing device according to claim 1, characterized in that: The limiting unit comprises a second front support plate (301), a second rear support plate (302), a second bearing (303), a reciprocating screw rod (304), a second limiting rod (305), a moving block (306), a sleeve plate (307) and a transmission member (308); the second front support plate (301) is fixedly connected to the front end on the upper right side of the bottom plate (1); the second rear support plate (302) is fixedly connected to the rear end on the upper right side of the bottom plate (1); the second bearing (303) is fixedly connected to the second front support plate (301) and the second rear support plate (302). The reciprocating screw rod (304) is fixedly connected to the inner side of the second bearing (303), the second limit rod (305) is fixedly connected to the lower end of one side adjacent to the second front support plate (301) and the second rear support plate (302), the moving block (306) is connected to the outer end of the reciprocating screw rod (304), the sleeve plate (307) is fixedly connected to the upper middle position of the moving block (306), and the transmission member (308) is connected to the rotating rod (204) and the front end of the reciprocating screw rod (304).

5. A resistance tester connecting wire retracting and releasing device according to claim 4, characterized in that: A threaded hole is provided in the middle of the upper end of the moving block (306), a second limiting hole is provided in the middle of the lower end of the moving block (306), the outer side of the reciprocating screw rod (304) is threadedly connected to the inner side of the threaded hole, and the outer side of the second limiting rod (305) is slidably connected to the inner side of the second limiting hole.

6. A resistance tester connecting wire retracting and releasing device according to claim 4, characterized in that: A threading hole is provided at the inner upper end of the sleeve plate (307), and the inner side of the threading hole is slidably connected to the outer side of the connecting wire to be stored.

7. The resistance tester connecting wire retracting and releasing device according to claim 1, characterized in that: An anti-slip pad is fixedly connected to the outer side of the pressing roller (211).

Images