Relay testing device
By introducing a locking sleeve structure and conductive block design into the relay test device, the problem of insufficient spring clamping force is solved, stable connection and efficient testing are achieved, and safety is improved.
Patent Information
- Application Number
- CN202422800829.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-18
AI Technical Summary
In existing relay testing devices, the spring clamp's rebound force weakens, resulting in reduced clamping strength, which can easily lead to relay test interruption and affect test efficiency and safety.
The locking sleeve structure is adopted, and the reaction force is formed by squeezing the rubber pad on the inner wall of the sleeve and the rubber pad on the splint to enhance the clamping strength. The arc design of the conductive block and the conductive end of the relay avoids scratching and achieves a stable connection.
The connection stability of relay testing is improved, the clamping loosening phenomenon is reduced, and the test efficiency and safety are improved.
Smart Images
Figure CN223450008U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a relay testing device belongs to relay testing equipment field. BACKGROUND
[0002] The relay testing device is a device for detecting and evaluating the performance of relays, which play an important role in electrical control systems for controlling the on-off of circuits. The relay testing device can help ensure that the performance of relays before and after use meets the standards, thereby improving the reliability and safety of the system.
[0003] The existing relay testing device has a wire connected to the detection sensing end, a spring clamp connected to the end of the wire, and a conductive plate fixedly connected to the inner wall of the clamp plate on both sides. The spring clamp clamps the conductive end of the relay, allowing the conductive plate to contact the conductive end of the relay, thereby transmitting current and voltage. The spring clamp connects to the conductive end of the relay only by clamping. After long-term use, the spring inside the spring clamp increases in metal fatigue, reducing the springback force and the clamping force on the conductive end of the relay. When arranging the wires of the relay testing device, the spring clamp is easily detached, causing the relay testing work to be interrupted and reducing the efficiency of the relay testing.
[0004] Therefore, the utility model provides a relay testing device to solve the above problems. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies in the prior art, the utility model aims to provide a relay testing device to solve the problem of unstable clamping connection testing mentioned in the background.
[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a relay testing device, comprising a relay testing machine box, three connection ports are uniformly fixed and installed on one side of the relay testing machine box from top to bottom, a wire is fixedly installed at the end of each connection port, an elastic clamp is connected to one end of each wire, a locking sleeve is sleeved outside each elastic clamp, two mounting blocks are fixedly connected to the other side of the relay testing machine box, and a handle is rotatably connected between the opposite sides of the two mounting blocks.
[0007] Further, the elastic clamp comprises a lower clamp plate and an upper clamp plate, the upper clamp plate and the lower clamp plate are hingedly connected by a spring pin shaft, a conductive block is fixedly installed on the opposite side of the lower clamp plate and the upper clamp plate, a first rubber pad is fixedly installed on the side of the lower clamp plate and the upper clamp plate away from each other, and the two conductive blocks are electrically connected to the relay testing machine box by wires.
[0008] Furthermore, the two first rubber pads have sides that are separated from each other and are in an arc-shaped convex shape, and the ends of the two conductive blocks that are away from the wires are in an arc-shaped chamfered shape.
[0009] Furthermore, the locking sleeve includes a clamping sleeve, which is arranged between the outer portion of the upper clamp and the lower clamp inside the elastic clamp, and the top and bottom of the inner wall of the clamping sleeve are fixedly installed with a second rubber pad.
[0010] Furthermore, one side opposite to the other of the two second rubber pads is in an arc-shaped convex shape, and both sides of the ferrule are in an open shape.
[0011] Furthermore, the opening diameter of one side of the ferrule is larger than the opening diameter of the other side, the top and the bottom of the inner wall of the ferrule are in an outward-expanding shape, and the outward-expanding opening faces the clamping mouth of the elastic clamp.
[0012] Beneficial effects of the utility model:
[0013] After the clamping sleeve moves from left to right, the second rubber pads fixed on the top and bottom of the inner wall of the clamping sleeve can be squeezed against the first rubber pads fixed on one side of the lower clamping plate and the upper clamping plate respectively. The resilience of the first rubber pad and the second rubber pad will form a reaction force on the upper clamping plate and the lower clamping plate, thereby increasing the strength of the upper clamping plate and the lower clamping plate on the conductive end of the external relay, improving the stability of the relay test connection, reducing the phenomenon of loose clamping of the conductive end of the relay, and improving the relay test efficiency.
[0014] The elastic clamp is mounted on the conductive connection position of the conductive end of the relay through a clamping sleeve, which avoids the operator from accidentally touching the conductive part during the test and effectively improves the safety of the relay test work. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:
[0016] Figure 1 This is a three-dimensional diagram of a relay testing device according to the present invention;
[0017] Figure 2 This is a front view of a relay testing device according to the present invention;
[0018] Figure 3 for Figure 2 A main cross-sectional view of the elastic clamp shown;
[0019] Figure 4 for Figure 3 Another main cross-sectional view of the elastic clamp shown;
[0020] Figure 5 for Figure 4The front view of the elastic clamp.
[0021] In the figure: 1, relay test machine box; 2, connecting port; 3, wire; 4, elastic clamp; 5, locking sleeve; 6, mounting block; 7, handle; 41, lower clamp plate; 42, upper clamp plate; 43, first rubber pad; 44, conductive block; 51, clamping sleeve; 52, second rubber pad. DETAILED DESCRIPTION
[0022] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0023] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of relay testing device, including relay test machine box 1, three connecting ports 2 are evenly fixed and installed in the side of relay test machine box 1 from top to bottom, the end portion of each connecting port 2 is fixedly installed with wire 3, the one end of each wire 3 is connected with elastic clamp 4, the outside of each elastic clamp 4 is equipped with locking sleeve 5, the other side of relay test machine box 1 is fixedly connected with two mounting blocks 6, the opposite side between two mounting blocks 6 is rotatably connected with handle 7, by handle 7, it is convenient to directly relay test machine box 1 is lifted and carried as a whole, effectively improve the overall portability of relay testing device.
[0024] Please refer to Figures 2-5The elastic clamp 4 includes a lower clamping plate 41 and an upper clamping plate 42. The upper clamping plate 42 and the lower clamping plate 41 are hinged to each other through a spring pin. The spring pin is composed of a pin and a spring. The spring is sleeved on the outside of the pin, and the two ends of the spring are respectively against the opposite sides of the lower clamping plate 41 and the upper clamping plate 42. The lower clamping plate 41 and the upper clamping plate 42 are fixedly installed with a conductive block 44 on the opposite side. The lower clamping plate 41 and the upper clamping plate 42 are fixedly installed with a first rubber pad 43 on the side away from the upper clamping plate 42. The two conductive blocks 44 are electrically connected to the relay test chassis 1 through the wire 3. The side where the two first rubber pads 43 are separated is in the shape of an arc protrusion. The end of the two conductive blocks 44 away from the wire 3 is in the shape of an arc chamfer, so that the upper clamping plate 42 and the lower clamping plate 41 are connected through the conductive block 4 4 In the process of clamping the conductive end of the relay, no scratching will occur between the conductive block 44 and the conductive end of the relay. By pinching one side of the lower clamping plate 41 and the upper clamping plate 42 in the upper and lower relative directions, the opening diameter between the lower clamping plate 41 and the other side of the upper clamping plate 42 can be expanded, and then the conductive end of the external relay can be placed inside the opening. After loosening the lower clamping plate 41 and the upper clamping plate 42, the conductive end of the relay can be clamped, and the conductive blocks 44 on the opposite sides of the lower clamping plate 41 and the upper clamping plate 42 are in contact with the conductive end of the relay, thereby realizing the electrical connection between the relay test equipment and the relay. After the external relay is clamped by the elastic clamp 4, the opening between the lower clamping plate 41 and the one side of the upper clamping plate 42 expands outward in an "eight" shape.
[0025] See also Figures 3-5 The locking sleeve 5 includes a clamping sleeve 51, which is sleeved between the upper clamping plate 42 and the outer portion of the lower clamping plate 41 inside the elastic clamp 4. The top and bottom of the inner wall of the clamping sleeve 51 are fixedly installed with a second rubber pad 52. The opposite side of the two second rubber pads 52 is in an arc convex shape. Both sides of the clamping sleeve 51 are open. The opening diameter of one side of the clamping sleeve 51 is larger than the opening diameter of the other side. The top and bottom of the inner wall of the clamping sleeve 51 are in an eight-shaped outward expansion shape, and the outward expansion opening faces the elastic clamp 4. At the clamping mouth, when the ferrule 51 moves from left to right, the second rubber pad 52 fixed on the top and bottom of the inner wall of the ferrule 51 can be squeezed against the first rubber pad 43 fixed on one side of the lower clamping plate 41 and the upper clamping plate 42 respectively. The resilience of the first rubber pad 43 and the second rubber pad 52 will form a reaction force on the upper clamping plate 42 and the lower clamping plate 41, thereby increasing the force of the upper clamping plate 42 and the lower clamping plate 41 to clamp the conductive end of the external relay, thereby improving the stability of the relay test connection.
[0026] Specifically, the opening between the other side of the lower clamp plate 41 and the upper clamp plate 42 can be expanded by pinching one side of the lower clamp plate 41 and the upper clamp plate 42 in opposite directions, and then the conductive end of the external relay can be placed inside the opening. After the lower clamp plate 41 and the upper clamp plate 42 are released, the conductive end of the relay can be clamped, and the conductive blocks 44 on the opposite side of the lower clamp plate 41 and the upper clamp plate 42 are in contact with the conductive end of the relay, thereby realizing the electrical connection between the relay test equipment and the relay. After the external relay is clamped by the elastic clamp 4, the opening between the one side of the lower clamp plate 41 and the upper clamp plate 42 is in an eight- character outward expansion shape.
[0027] The two sides of the sleeve 51 are in an open shape, the opening diameter of one side of the sleeve 51 is larger than that of the other side, the top of the inner wall of the sleeve 51 and the bottom of the inner wall are in an eight-character outward expansion shape, and the outward expansion opening is towards the clamping opening of the elastic clamp 4. When the sleeve 51 moves from left to right, the second rubber pad 52 fixed on the top and bottom of the inner wall of the sleeve 51 can be pressed by the first rubber pad 43 fixed on the side of the lower clamp plate 41 and the upper clamp plate 42, respectively. The elastic force of the first rubber pad 43 and the second rubber pad 52 can form a reaction force on the upper clamp plate 42 and the lower clamp plate 41, thereby increasing the clamping force of the upper clamp plate 42 and the lower clamp plate 41 on the conductive end of the external relay, improving the stability of the relay test connection, reducing the phenomenon of loose clamping of the conductive end of the relay, and improving the efficiency of the relay test.
[0028] In addition, the sleeve 51 sets the elastic clamp 4 and the conductive connection position of the relay conductive end, avoiding the misoperation of the operator on the conductive part during the test process, effectively improving the safety of the relay test work.
[0029] In addition, it should be understood that although the present specification is described in terms of embodiments, each embodiment does not contain only one independent technical solution, and the description of the specification is only for the sake of clarity. The skilled person should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by the skilled person.
Claims
1. A relay testing device, comprising a relay testing chassis (1), characterized in that: One side of the relay test box (1) is evenly fixed with three connection ports (2) from top to bottom, the end of each connection port (2) is fixed with a wire (3), one end of each wire (3) is connected to an elastic clamp (4), and the outside of each elastic clamp (4) is provided with a locking sleeve (5), and the other side of the relay test box (1) is fixedly connected to two mounting blocks (6), and a handle (7) is rotatably connected between the opposite sides of the two mounting blocks (6).
2. A relay testing device according to claim 1, characterized in that: The elastic clamp (4) comprises a lower clamp (41) and an upper clamp (42), wherein the upper clamp (42) and the lower clamp (41) are hinged to each other via a spring pin, and conductive blocks (44) are fixedly mounted on opposite sides of the lower clamp (41) and the upper clamp (42), and a first rubber pad (43) is fixedly mounted on the side of the lower clamp (41) away from the upper clamp (42), and both conductive blocks (44) are electrically connected to the relay test box (1) via a wire (3).
3. A relay testing device according to claim 2, characterized in that: The two first rubber pads (43) are both in the shape of arc protrusions on the sides away from each other, and the two conductive blocks (44) are in the shape of arc chamfers on the ends away from the wires (3).
4. A relay testing device according to claim 1, characterized in that: The locking sleeve (5) comprises a clamping sleeve (51), which is sleeved between an upper clamping plate (42) inside the elastic clamp (4) and the outside of a lower clamping plate (41), and a second rubber pad (52) is fixedly mounted on the top and bottom of the inner wall of the clamping sleeve (51).
5. A relay testing device according to claim 4, characterized in that: The opposite sides of the two second rubber pads (52) are in the shape of arc protrusions, and both sides of the clamping sleeve (51) are in the shape of openings.
6. A relay testing device according to claim 4, characterized in that: The opening diameter of one side of the clamping sleeve (51) is larger than the opening diameter of the other side, and the top and bottom of the inner wall of the clamping sleeve (51) are flared outward in an "eight" shape, with the flared opening facing the clamping opening of the elastic clamp (4).