A portable resistance tester

Abstract

This application relates to a portable resistance tester, comprising a body with a rotating groove on the rear wall of the body. A rotating rod is rotatably connected to the rear wall of the rotating groove. A rotating roller is sleeved and fixed on the outer wall of the rotating rod. A connecting wire is wound around the rotating roller and the groove. One end of the connecting wire passes through the rotating roller and the rotating rod, and its end is rotatably connected to the center of the front wall of the rotating rod. A test pen and a temperature measuring pen are respectively provided on both sides of the body. One end of the connecting wire is fixedly connected to the test pen, and the other end is slidably connected to a test element inside the body. The connector of the test element is fixedly connected to a lever outside the body. By sliding the lever, the connector of the test element moves and inserts into the connecting wire. This solution measures the resistance using the temperature measuring pen and the test pen. Rotating the connecting rod drives the rotating roller to rotate. The connecting wire is retracted. When retracted to a suitable length, the test pen and the temperature measuring pen are fixed and protected by an elastic clamp and a protective pad.

Description

Technical Field

[0001] The present application relates to the technical field of resistance testers, and in particular to a portable resistance tester. Background Art

[0002] A resistance tester is an instrument used to measure the value of resistance in a circuit. It usually consists of a digital display and some control buttons for selecting the measurement range and other parameters. The resistance tester calculates the resistance value by applying a certain voltage to the resistor being tested and measuring the current passing through the resistor.

[0003] Common resistance testers include portable digital resistance testers and desktop digital resistance testers. Portable resistance testers are suitable for portable measurement and on-site maintenance, while desktop resistance testers usually have higher accuracy and more functions, and are suitable for laboratory and factory environments. This application relates to a portable resistance tester.

[0004] The traditional portable resistance tester is to put the test pen in contact with the object to be tested, and record the resistance through the dial of the tester. The test pen and the tester are separated, which is not easy to carry. The test head of the test pen is easily damaged, and the connecting wire of the test pen has no storage function and is easy to get tangled. Therefore, in order to solve the above problems, the present application provides a portable resistance tester.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to solve the problem that the test pen is easily damaged and the connecting wire is not easy to store, the present application provides a portable resistance tester.

[0007] The present application provides a portable resistance tester, wherein a rotating groove is provided on the rear wall of the body, and a rotating rod is rotatably connected to the rear wall of the rotating groove. The rotating rod is located on the outer wall inside the rotating groove and is sleeved and fixedly connected to a rotating roller. The rotating roller is provided with a circular groove, and a connecting wire is wound around the rotating roller and the groove. One end of the connecting wire passes through the rotating roller and the rotating rod, and its end is arranged near the center of the front wall inside the body through the rotating rod and is rotatably connected to it. A test pen and a temperature measuring pen are respectively provided on both sides of the body, one end of the connecting wire is fixedly connected to the test pen, and the other end is slidably connected to a test element inside the body, and a connecting head of the test element is fixedly connected to a paddle outside the body. When the paddle is slid, the connecting head of the test element moves and is plugged into the connecting wire.

[0008] Preferably, both left and right side walls of the machine body are provided with storage grooves, and both left and right side walls of the machine body are rotatably connected with rotating plates that match the storage grooves.

[0009] Preferably, a plurality of elastic clamps are fixedly provided on the inner side walls of the storage slot, and a protective pad is fixedly provided on the inner lower end of the storage slot.

[0010] Preferably, the test pen and the temperature measuring pen are detachably connected to the storage slot via the elastic clamp respectively.

[0011] Preferably, the left and right side walls of the body are both penetrated by limit rods and slidably connected, one end of the limit rod located outside the body is fixedly connected to a pull plate, a spring is wound around the outside of the limit rod, and the pull plate is elastically connected to the body through the spring.

[0012] Preferably, a limiting hole is provided through the side wall of the rotating plate, and the limiting rod is slidably connected to the rotating plate through the limiting hole.

[0013] Preferably, a connecting rod is fixedly connected to the lower wall of one end of the rotating rod located outside the body.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] By pulling the test pen, first use the temperature measuring pen to measure the temperature of the object to be tested, slide the paddle, connect the connecting wire with the test element, the test pen contacts the object to be tested to measure its resistance, rotate the connecting rod, the rotating rod drives the rotating roller to rotate, and the connecting wire is stored. When it is stored to a suitable length, the test pen and the temperature measuring pen are fixed and protected by the elastic splint and the protective pad. Pull the pull plate to rotate the rotating plate, loosen the pull plate limit rod and insert it into the limit hole to complete the fixation of the rotating plate, strengthen the protection of the test pen and the temperature measuring pen, and compared with traditional equipment, the test pen and the temperature measuring pen can be quickly stored and protected, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure from a first viewing angle in the first embodiment of the present application;

[0017] Figure 2 is a schematic diagram of the overall structure of the second viewing angle in the first embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the internal structure of the storage slot from a first viewing angle in the first embodiment of the present application;

[0019] Figure 4 It is a schematic diagram of the internal structure of the storage slot from a second viewing angle in the first embodiment of the present application;

[0020] Figure 5 It is a schematic diagram of the internal structure of the rotating tank in the first embodiment of the present application;

[0021] Figure 6It is a schematic diagram of the rotating roller storage process in the first embodiment of the present application.

[0022] Explanation of the reference numerals: 1. Machine body; 2. Rotating plate; 3. Test pen; 4. Connecting wire; 5. Elastic splint; 6. Storage slot; 7. Protective pad; 8. Limiting hole; 9. Spring; 10. Pull plate; 11. Limiting rod; 12. Rotating roller; 13. Rotating rod; 14. Connecting rod; 15. Rotating slot; 16. Temperature measuring pen. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-6 This application is described in further detail.

[0024] Embodiment 1

[0025] Reference Figure 1-6 A portable resistance tester includes a body 1, a rotating groove 15 is provided on the rear wall of the body 1, a rotating rod 13 is rotatably connected to the rear wall of the rotating groove 15, and a connecting rod 14 is fixedly connected to the lower wall of one end of the rotating rod 13 located outside the body 1. A rotating roller 12 is sleeved and fixedly connected to the outer wall of the rotating rod 13 located inside the rotating groove 15, and the rotating roller 12 is provided with a circular groove, and a connecting wire 4 is wound around the rotating roller 12 and the groove. One end of the connecting wire 4 passes through the rotating roller 12 and the rotating rod 13, and its end is arranged near the center of the front wall inside the body 1 through the rotating rod 13 and is rotatably connected thereto. When the rotating rod 13 rotates, the end of the connecting wire 4 located inside the body 1 rotates but its position does not change, which facilitates the subsequent sliding connection between the connecting wire 4 and the connector of the test element. A test pen 3 and a temperature measuring pen 16 are respectively arranged on both sides of the body 1. One end of the connecting wire 4 is fixedly connected to the test pen 3, and the other end is slidably connected to the test element inside the body 1. The connecting head of the test element is fixedly connected to the paddle outside the body 1. By sliding the paddle, the connecting head of the test element moves and is plugged into the connecting wire 4. The test element is a commonly used element in the resistance tester and will not be described here.

[0026] The left and right side walls of the body 1 are provided with storage grooves 6, and the left and right side walls of the body 1 are rotatably connected with rotating plates 2 that match the storage grooves 6. Several elastic clamps 5 are fixedly arranged on the inner side walls of the storage grooves 6. The elastic clamps 5 are elastic metal clamps, and rubber pads are fixedly arranged on the opposite sides thereof. Protective pads 7 are fixedly arranged at the lower ends of the storage grooves 6 to protect the contact heads of the test pen 3 and the temperature measuring pen 16. The test pen 3 and the temperature measuring pen 16 are detachably connected to the storage grooves 6 through the elastic clamps 5, respectively.

[0027] The left and right side walls of the machine body 1 are both provided with limit rods 11 through-through and slidably connected, and one end of the limit rods 11 located outside the machine body 1 is fixedly connected with a pull plate 10, and a spring 9 is wound around the outside of the limit rods 11, and the pull plates 10 are elastically connected to the machine body 1 through the spring 9. The side wall of the rotating plate 2 is provided with a limit hole 8 through-through, and the limit rod 11 is slidably connected to the rotating plate 2 through the limit hole 8.

[0028] During the test process, by pulling the test pen 3, since the measurement result of the object's resistance is affected by the temperature, the temperature of the object to be tested is first measured with the temperature measuring pen 16, the paddle is slid, the connecting wire 4 is connected to the test element, the test pen 3 contacts the object to be tested to measure its resistance, the connecting rod 14 is rotated, the connecting rod 14 drives the rotating rod 13 to rotate, so that the rotating roller 12 rotates, and the connecting wire 4 is stored. When it is stored to a suitable length, the test pen 3 and the temperature measuring pen 16 are fixed and protected by the elastic splint 5 and the protective pad 7, the pull plate 10 is pulled to rotate the rotating plate 2, the pull plate 10 is released, and the limit rod 11 is inserted into the limit hole 8 to complete the fixation of the rotating plate 2, thereby strengthening the protection of the test pen 3 and the temperature measuring pen 16, and realizing the rapid storage and protection of the test pen 3 and the temperature measuring pen 16.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0030] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is 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 should be included in the protection scope of the present utility model.

[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A portable resistance tester, comprising a body (1), characterized in that: The body (1) is provided with a rotating groove (15) on the rear wall, and a rotating rod (13) is rotatably connected to the rear wall of the rotating groove (15). The rotating rod (13) is located on the outer wall of the rotating groove (15) and is sleeved and fixedly connected to a rotating roller (12). The rotating roller (12) is provided with a circular groove. A connecting wire (4) is wound around the rotating roller (12) and the groove. One end of the connecting wire (4) passes through the rotating roller (12) and the rotating rod (13), and the end of the connecting wire (4) is arranged near the center of the front wall inside the body (1) through the rotating rod (13) and is rotatably connected thereto. A test pen (3) and a temperature measuring pen (16) are respectively arranged on both sides of the body (1). One end of the connecting wire (4) is fixedly connected to the test pen (3), and the other end is slidably connected to a test element inside the body (1). The connecting head of the test element is fixedly connected to a paddle outside the body (1). The paddle is slid, and the connecting head of the test element moves to be plugged into the connecting wire (4).

2. A portable resistance tester according to claim 1, characterized in that: The left and right side walls of the machine body (1) are both provided with storage grooves (6), and the left and right side walls of the machine body (1) are both rotatably connected with rotating plates (2) that match the storage grooves (6).

3. A portable resistance tester according to claim 2, characterized in that: A plurality of elastic clamping plates (5) are fixedly arranged on the inner side wall of the storage groove (6), and a protective pad (7) is fixedly arranged on the inner lower end of the storage groove (6).

4. A portable resistance tester according to claim 3, characterized in that: The test pen (3) and the temperature measuring pen (16) are detachably connected to the storage slot (6) via the elastic clamp (5) respectively.

5. A portable resistance tester according to claim 2, characterized in that: The left and right side walls of the machine body (1) are both provided with limit rods (11) penetrating and slidably connected thereto; one end of the limit rods (11) located outside the machine body (1) is fixedly connected to a pull plate (10); a spring (9) is wound around the outside of the limit rods (11); and the pull plates (10) are elastically connected to the machine body (1) via the springs (9).

6. A portable resistance tester according to claim 5, characterized in that: A limiting hole (8) is provided through the side wall of the rotating plate (2), and the limiting rod (11) is slidably connected to the rotating plate (2) via the limiting hole (8).

7. A portable resistance tester according to claim 1, characterized in that: A connecting rod (14) is fixedly connected to the lower wall of one end of the rotating rod (13) located outside the machine body (1).

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