Cable circuit tester

Abstract

The utility model discloses a cable circuit tester, which belongs to the technical field of cable testers and comprises a tester main body, a control screen is arranged on the upper surface of the tester main body, two protective covers are slidably mounted at positions, right opposite to the control screen, of the upper surface of the tester main body, and the two protective covers are matched with the control screen for use. A mounting shell is fixedly mounted on the side surface of the tester main body, a rotating shaft I is rotationally mounted in the mounting shell, a gear is fixedly mounted on the outer surface of the rotating shaft I, and two toothed plates are arranged outside the gear in a meshing manner; the protective cover is arranged to be used in cooperation with the mounting shell, sliding unfolding and closing of the protective cover are achieved through cooperation of the first rotating shaft, the gear and the toothed plate in the mounting shell, then the protective cover is opened when the control screen needs to be operated, the protective cover is closed after use, and the control screen can be effectively isolated and protected; the problem that the control screen is easy to touch and damage due to external installation is avoided, and a good protection effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable testers, and in particular relates to a cable circuit tester. Background Art

[0002] Cable is a general term for items used for optical and electrical signal transmission, such as optical cables, electrical wires, and cables. Cables have numerous uses and are ubiquitous in real life. They are primarily used for control installations, connecting devices, and transmitting power and signals. They are common and indispensable items in daily life. Because cables primarily transmit signals, they are subject to certain physical and electrical performance requirements. During use, they require various tests to verify that their performance is normal and meets the requirements. Tests typically include open and short circuits, wiring errors, insulation performance, voltage withstand, attenuation, and crosstalk. Therefore, cable testers are essential tools for cable testing.

[0003] With the development of technology, cable testers have been upgraded from manual operation to current electronic control tests, and control operations and displays are performed through a control screen. However, the control screens are all installed externally, and there is no protective mechanism for the control screens. After use, the control screens cannot be effectively isolated and protected, and are prone to damage due to accidental contact. In addition, there is no carrying mechanism on the tester for easy portability, making it inconvenient to hold and use. Utility Model Content

[0004] The purpose of the present utility model is to provide a cable circuit tester to solve the problem that the control screens proposed in the above-mentioned background technology are all installed externally, and there is no protective mechanism for the control screen on them. After use, the control screen cannot be effectively isolated and protected, and it is easy to cause accidental contact and damage to the control screen. In addition, there is no carrying mechanism on the tester for easy carrying, which makes it inconvenient to hold and use.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cable circuit tester, comprising a tester body, the upper surface of the tester body is provided with a control screen, two protective covers are slidably installed at the position of the upper surface of the tester body facing the control screen, the two protective covers are used in conjunction with the control screen, a mounting shell is fixedly installed on the side of the tester body, a rotating shaft 1 is rotatably installed in the mounting shell, a gear is fixedly installed on the outer surface of the rotating shaft 1, two tooth plates are provided for external meshing of the gear, the two tooth plates are staggered with each other and a connecting rod is fixedly installed on the side of the tooth plate, and the connecting rod The other end is fixedly connected to the protective cover at the corresponding position, and a channel for the movement of the connecting rod is provided on the side of the mounting shell, one end of the rotating shaft extends out of the mounting shell and is fixed with a rotating plate, a latch is inserted into the rotating plate, and a slot for inserting the latch is provided on the side of the mounting shell, a receiving groove is provided on the side of the tester body, and a pulling assembly is provided in the receiving groove, and the pulling assembly includes an outer rubber sleeve, and adjustment grooves are provided at both ends of the outer rubber sleeve, and an inner rubber plate is slidably provided in the adjusting groove, and the end of the inner rubber plate away from the outer rubber sleeve is fixedly installed with rotating shaft 2, and the rotating shaft 2 is rotatably installed on the inner wall of the receiving groove.

[0006] By adopting the above scheme, a protective cover is provided for use in conjunction with the mounting shell, and the rotating shaft 1, gear and tooth plate in the mounting shell are used to realize the sliding expansion and closing of the protective cover. Then, the protective cover is opened when the control screen needs to be operated, and the protective cover is closed after use. The control screen can be effectively isolated and protected, avoiding the problem that the control screen is easily damaged by being touched when it is installed externally, and has a good protective effect. By providing an outer rubber sleeve to cooperate with the inner rubber plate and the rotating shaft 2 to assemble the lifting component, the sliding characteristics between the outer rubber sleeve and the inner rubber plate are used to achieve overall elongation when it needs to be carried. When used in conjunction with the rotating shaft 2, the outer rubber sleeve and the inner rubber plate can form a curved structure for hand holding, which is convenient for carrying and use.

[0007] As a preferred embodiment, a slide rail block is fixedly mounted on the side surface of the tooth plate, and a guide rail bar used in conjunction with the slide rail block is fixedly mounted on the inner wall of the mounting shell.

[0008] By adopting the above solution, the slide block is used in conjunction with the guide rail to support the movement of the tooth plate, improve the movement stability of the tooth plate, and ensure smooth engagement between the tooth plate and the gear.

[0009] As a preferred embodiment, a wheel groove is formed on the inner wall of the adjusting groove on the outer rubber sleeve, and a roller is rotatably mounted on the end of the inner rubber plate, and the roller rolls and fits against the inner wall of the wheel groove.

[0010] With the above solution, the roller is used in conjunction with the wheel groove to achieve a limiting effect, thereby preventing the inner rubber plate from sliding off the outer rubber sleeve.

[0011] As a preferred embodiment, a damping shaft is fixedly installed on the side of the tester body, a clamping plate is fixedly installed on the outer surface of the damping shaft, a clamping rod is fixedly installed on the side of the outer rubber sleeve, and the clamping plate has a bayonet for use with the clamping rod.

[0012] By adopting the above solution, the card plate is used in conjunction with the card rod to lock the external rubber sleeve, achieving a good storage locking effect.

[0013] As a preferred embodiment, a spring is fixedly mounted on the side surface of one of the tooth plates, and the other end of the spring is fixed to the inner wall of the mounting shell.

[0014] By adopting the above solution, the elasticity of the spring is used in conjunction. When the protective cover is closed, the spring is in a deformed state. Therefore, when the pin is pulled out, the elasticity of the spring can be used to drive the protective cover to open quickly, thereby improving the convenience of operation.

[0015] As a preferred embodiment, a trapezoidal slide bar is fixedly mounted on the lower surface of the protective cover, and a trapezoidal slide groove for sliding the trapezoidal slide bar is provided on the surface of the tester body.

[0016] By adopting the above solution and using the trapezoidal slide bar in conjunction with the trapezoidal slide groove, the protective cover can be slidably supported and limited, thereby improving movement stability.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The cable circuit tester is used with a protective cover in conjunction with a mounting shell. The protective cover is slid open and closed by utilizing the cooperation of a rotating shaft, a gear, and a toothed plate inside the mounting shell. The protective cover is opened when the control panel needs to be operated, and closed after use. This effectively isolates and protects the control panel, avoiding the problem of the control panel being easily damaged by touch when installed externally, and achieving a good protective effect.

[0019] The cable circuit tester is assembled with a lifting component by providing an outer rubber sleeve, an inner rubber plate and a second rotating shaft. When it needs to be carried, the sliding characteristics between the outer rubber sleeve and the inner rubber plate are used to achieve overall stretching. When used in conjunction with the second rotating shaft, the outer rubber sleeve and the inner rubber plate can form a curved structure for hand gripping, making it easy to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the utility model from another angle;

[0022] Figure 3This is a schematic diagram of the structure of the utility model with the protective cover opened;

[0023] Figure 4 This is a schematic structural diagram of the installation shell section of the utility model;

[0024] Figure 5 This is a schematic structural diagram of the gear and tooth plate of the utility model;

[0025] Figure 6 This is a schematic structural diagram of the cross section of the outer rubber sleeve of the utility model;

[0026] Figure 7 This is a structural diagram of the clamping plate and clamping rod of the utility model.

[0027] In the figure: 1. Tester body; 2. Protective cover; 3. Mounting shell; 4. Rotating shaft 1; 5. Gear; 6. Tooth plate; 7. Connecting rod; 8. Outer rubber sleeve; 9. Inner rubber plate; 10. Rotating shaft 2; 11. Rotating plate; 12. Latch; 13. Slide block; 14. Guide bar; 15. Roller; 16. Damping shaft; 17. Clamping plate; 18. Clamping rod; 19. Spring; 20. Trapezoidal slide bar. DETAILED DESCRIPTION

[0028] See also Figure 1-7 The utility model provides a cable circuit tester, including a tester body 1, the upper surface of the tester body 1 is provided with a control screen, the upper surface of the tester body 1 is slidably installed with two protective covers 2 at a position facing the control screen, the two protective covers 2 are used in conjunction with the control screen, a mounting shell 3 is fixedly installed on the side of the tester body 1, a rotating shaft 4 is rotatably installed in the mounting shell 3, a gear 5 is fixedly installed on the outer surface of the rotating shaft 4, the outer meshing of the gear 5 is provided with two tooth plates 6, the two tooth plates 6 are staggered and a connecting rod 7 is fixedly installed on the side of the tooth plate 6, the other end of the connecting rod 7 is connected to the corresponding position The protective cover 2 is fixedly connected, and a channel for the movement of the connecting rod 7 is opened on the side of the mounting shell 3. One end of the rotating shaft 4 extends out of the mounting shell 3 and is fixed with a rotating plate 11, and a pin 12 is inserted on the rotating plate 11. A slot for inserting the pin 12 is opened on the side of the mounting shell 3. A receiving groove is opened on the side of the tester body 1 and a pulling assembly is arranged in the receiving groove. The pulling assembly includes an outer rubber sleeve 8, and adjustment grooves are opened at both ends of the outer rubber sleeve 8 and an inner rubber plate 9 is slidingly arranged in the adjusting groove. The end of the inner rubber plate 9 away from the outer rubber sleeve 8 is fixedly installed with a rotating shaft 2 10, and the rotating shaft 2 10 is rotatably installed on the inner wall of the receiving groove.

[0029] A slide block 13 is fixedly installed on the side of the tooth plate 6, and a guide bar 14 used in conjunction with the slide block 13 is fixedly installed on the inner wall of the mounting shell 3. The slide block 13 is used in conjunction with the guide bar 14 to support the movement of the tooth plate 6, improve the movement stability of the tooth plate 6, and ensure the smooth engagement of the tooth plate 6 and the gear 5.

[0030] A wheel groove is provided on the inner wall of the adjustment groove on the outer rubber sleeve 8, and a roller 15 is rotatably installed on the end of the inner rubber plate 9. The roller 15 rolls and fits on the inner wall of the wheel groove. The roller 15 cooperates with the wheel groove to play a limiting effect, preventing the inner rubber plate 9 from sliding off the outer rubber sleeve 8.

[0031] A damping shaft 16 is fixedly installed on the side of the tester body 1, and a clamping plate 17 is fixedly installed on the outer surface of the damping shaft 16. A clamping rod 18 is fixedly installed on the side of the outer rubber sleeve 8. The clamping plate 17 has a bayonet for use with the clamping rod 18. The clamping plate 17 is used in conjunction with the clamping rod 18 to lock the outer rubber sleeve 8, which has a good storage locking effect.

[0032] A spring 19 is fixedly installed on the side of one of the tooth plates 6, and the other end of the spring 19 is fixed to the inner wall of the mounting shell 3. The spring 19 is used in conjunction with the elasticity of the spring 19. When the protective cover 2 is closed, the spring 19 is in a deformed state. Therefore, when the latch 12 is pulled out, the elasticity of the spring 19 can be used to drive the protective cover 2 to open quickly, thereby improving the convenience of operation.

[0033] A trapezoidal slide 20 is fixedly installed on the lower surface of the protective cover 2, and a trapezoidal slide groove is opened on the surface of the tester body 1 for the trapezoidal slide 20 to slide. By using the trapezoidal slide 20 in conjunction with the trapezoidal slide groove, the protective cover 2 can be slidably supported and limited to improve the movement stability.

[0034] When in use, when it is necessary to use the tester body 1 to perform a cable test, first connect the cable to be tested to the interface on the tester body 1, and then pull out the pin 12. When the pin 12 is pulled out, the elasticity of the spring 19 will pull the tooth plate 6 connected to the spring 19 to move, and then the gear 5 and the tooth plate 6 will cooperate to drive the other tooth plate 6 to move relative to each other, so that the two protective covers 2 can slide and unfold through the connecting rod 7, thereby exposing the control screen, and then the control screen is used to perform cable testing. After the test is completed, the rotating plate 11 is rotated to drive the gear 5 to rotate, and then the tooth plate 6 is reset, thereby driving the protective cover 2 to reset and slide closed, and the pin 12 is inserted to lock it, thereby protecting the control screen. When it needs to be carried, the card plate 17 is rotated to disengage the card plate 17 from the bayonet, unlocking the outer rubber sleeve 8, and then the outer rubber sleeve 8 and the inner rubber plate 9 are used in conjunction with the rotating shaft 2 10, so that the outer rubber sleeve 8 and the inner rubber plate 9 can form a curved structure for hand holding, which is convenient for carrying and use.

Claims

1. A cable circuit tester, characterized in that: The invention comprises a tester body (1), wherein the upper surface of the tester body (1) is provided with a control screen, and two protective covers (2) are slidably installed at positions on the upper surface of the tester body (1) facing the control screen, and the two protective covers (2) are used in conjunction with the control screen, and a mounting shell (3) is fixedly installed on the side of the tester body (1), and a rotating shaft (4) is rotatably installed in the mounting shell (3), and a gear (5) is fixedly installed on the outer surface of the rotating shaft (4), and two tooth plates (6) are provided for external meshing of the gear (5), and the two tooth plates (6) are arranged in an interlaced manner and a connecting rod (7) is fixedly installed on the side of the tooth plate (6), and the other end of the connecting rod (7) is fixedly connected to the protective cover (2) at the corresponding position. The side of the mounting shell (3) is provided with a channel for the movement of the connecting rod (7), one end of the rotating shaft (4) extends out of the mounting shell (3) and is fixed with a rotating plate (11), a latch (12) is inserted on the rotating plate (11), and the side of the mounting shell (3) is provided with a slot for the latch (12) to be inserted, the side of the tester body (1) is provided with a receiving groove and a pulling component is provided in the receiving groove, the pulling component includes an outer rubber sleeve (8), both ends of the outer rubber sleeve (8) are provided with adjustment grooves and an inner rubber plate (9) is slidably provided in the adjustment groove, the end of the inner rubber plate (9) away from the outer rubber sleeve (8) is fixedly installed with the rotating shaft (10), and the rotating shaft (10) is rotatably installed on the inner wall of the receiving groove.

2. The cable circuit tester according to claim 1, wherein: A slide block (13) is fixedly mounted on the side surface of the tooth plate (6), and a guide rail (14) used in conjunction with the slide block (13) is fixedly mounted on the inner wall of the mounting shell (3).

3. The cable circuit tester according to claim 1, wherein: A wheel groove is provided on the inner wall of the adjusting groove of the outer rubber sleeve (8), and a roller (15) is rotatably mounted on the end of the inner rubber plate (9), and the roller (15) rolls and fits on the inner wall of the wheel groove.

4. The cable circuit tester according to claim 1, wherein: A damping shaft (16) is fixedly mounted on the side of the tester body (1), a clamping plate (17) is fixedly mounted on the outer surface of the damping shaft (16), a clamping rod (18) is fixedly mounted on the side of the outer rubber sleeve (8), and a clamping port for use with the clamping rod (18) is provided on the clamping plate (17).

5. The cable circuit tester according to claim 1, wherein: A spring (19) is fixedly mounted on the side surface of one of the tooth plates (6), and the other end of the spring (19) is fixed to the inner wall of the mounting shell (3).

6. The cable circuit tester according to claim 1, characterized in that: A trapezoidal slide bar (20) is fixedly mounted on the lower surface of the protective cover (2), and a trapezoidal slide groove for the trapezoidal slide bar (20) to slide is provided on the surface of the tester body (1).

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