Test fixture of relay

Abstract

The utility model discloses a relay test fixture comprising a clamping plate, the lower end of the clamping plate is fixedly connected with a pressing rod, the inner wall of the pressing rod is slidably connected with a telescopic rod, a threaded groove is arranged in the telescopic rod, the inner wall of the threaded groove is in threaded connection with a second threaded rod, and the lower end of the telescopic rod is slidably connected with a clamping groove. A first threaded rod is rotationally connected to the inner wall of the clamping groove, a second bevel gear is fixedly connected to the lower end of the second threaded rod, a first bevel gear is connected to the outer surface of the second bevel gear in a meshed mode, and one end of the first threaded rod is fixedly connected to the rear end of the first bevel gear. According to the test fixture of the relay, the clamping plate is pressed, the clamping plate is pressed downwards to drive the pressing rod to move downwards, the pressing rod moves downwards to drive the telescopic rod to move downwards, so that the clamping block is driven to move leftwards and rightwards to clamp the relay, the distance between the clamping block and the telescopic rod is adjusted, the relays of different sizes and models are clamped and fixed, and the adaptability of the fixture is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of relays, and in particular relates to a test fixture for relays. Background Art

[0002] Solid-state relays need to be tested for contact voltage drop before they are shipped out of the factory. The traditional testing process is to connect the input "+" and "-" poles, as well as the output "+" and "-" poles separately, requiring a total of four wires. After the test, these cables need to be unloaded before the next product can be loaded for testing.

[0003] At present, there is a lack of corresponding fixtures to fix relays when testing them on the market. This leads to the unstable state of the relay during the measurement process, which in turn has a certain impact on the measurement results. Due to the lack of a suitable fixture, the relay may move or vibrate slightly during the measurement process, thereby changing its working state. This instability may increase the error of the measurement results and even fail to accurately reflect the actual performance of the relay. For this reason, we propose a relay test fixture. Utility Model Content

[0004] The utility model aims to provide a test fixture for a relay to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned objectives, the specific technical scheme of the utility model is as follows: a test fixture of a relay, comprising a card plate, a pressure rod fixedly connected to the lower end of the card plate, a telescopic rod slidably connected to the inner wall of the pressure rod, a threaded groove is opened inside the telescopic rod, a second threaded rod is threadedly connected to the inner wall of the threaded groove, the lower end of the second threaded rod is rotatably connected to the bottom wall of the slot, the lower end of the telescopic rod is slidably connected to the slot, a fixing block is fixedly connected to the inner wall of the slot, a first threaded rod is rotatably connected to the inside of the fixing block, the lower end of the second threaded rod is fixedly connected to the second bevel gear, the outer surface of the second bevel gear is meshedly connected to the first bevel gear, one end of the first threaded rod is fixedly connected to the rear end of the first bevel gear, and the outer surface of the first threaded rod is threadedly connected to the clamping block.

[0006] Preferably, the upper end of the telescopic rod is fixedly connected to a first spring, and one end of the first spring away from the telescopic rod is fixedly connected to the inner wall of the pressure rod.

[0007] Preferably, the upper end of the clamping block is slidably connected to a clamping plate, and a limiting rod is slidably connected inside the clamping plate. The end of the clamping plate close to the clamping block is fixedly connected to a second spring, and the end of the second spring away from the clamping plate is fixedly connected to the upper end of the clamping plate, and the limiting rod passes through the interior of the second spring and the interior of the clamping plate in sequence.

[0008] Preferably, two reset blocks are slidably connected to the outer surface of the first threaded rod, and a third spring is fixedly connected to one opposite end of the two reset blocks. The interior of the reset block is threadedly connected to the outer surface of the first threaded rod.

[0009] Preferably, the number of the clamping blocks is two, and they are respectively threadedly connected to the left and right ends of the first threaded rod, and the first threaded rod is a bidirectional threaded rod.

[0010] Preferably, the outer wall of the telescopic rod is in contact with the inner wall of the pressure rod.

[0011] Preferably, one end of the limiting rod away from the clamping plate is fixedly connected to the upper end of the clamping plate.

[0012] The test fixture of a relay of the utility model has the following advantages:

[0013] The test fixture of the relay drives the clamping block to move left and right to clamp the relay, adjust the distance between them, clamp and fix relays of different sizes and models, and ensure the adaptability of the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 For the utility model Figure 2 A is an enlarged structural diagram;

[0018] Figure 4 For the utility model Figure 2 The enlarged structural diagram at B in FIG.

[0019] Description of the markings in the figure:

[0020] 1. Clamping plate; 2. Pressure rod; 3. Telescopic rod; 4. Clamping slot; 5. Threaded slot; 6. First threaded rod; 7. Second threaded rod; 8. First bevel gear; 9. Second bevel gear; 10. First spring; 11. Clamping block; 12. Clamping plate; 13. Limiting rod; 14. Second spring; 15. Reset block; 16. Third spring; 17. Fixed block. DETAILED DESCRIPTION

[0021] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0022] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0025] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0026] In order to better understand the purpose, structure and function of the present invention, a relay test fixture of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1-Figure 4 As shown, a test fixture of a relay of the utility model comprises a card plate 1, which is used to clamp the relay, and the lower end of the card plate 1 is fixedly connected to a pressure rod 2, and the pressure rod 2 is used to drive the card plate 1 to move up and down, and the inner wall of the pressure rod 2 is slidably connected to a telescopic rod 3, and the telescopic rod 3 changes the up and down movement position of the pressure rod 2 by changing the length of entering the inner part of the pressure rod 2. A thread groove 5 is opened inside the telescopic rod 3, and the thread groove 5 drives the second threaded rod 7 to rotate through the thread, and the inner wall of the thread groove 5 is threadedly connected to the second threaded rod 7, and the lower end of the second threaded rod 7 is rotatably connected to the bottom wall of the card slot 4, and the second threaded rod 7 rotates by moving up and down through the telescopic rod 3 to drive the second bevel gear 9 to rotate, and the lower end of the telescopic rod 3 is slidably connected to the card slot 4, and the card slot 4 is used to clamp the relay, and the inner wall of the card slot 4 is fixedly connected to a fixed block 17, and the fixed block 17 is rotatably connected to a first threaded rod 6, and the first threaded rod 6 is used to drive the clamping block 11 to move left and right, and the second thread The lower end of the rod 7 is fixedly connected with a second bevel gear 9, and the second bevel gear 9 is rotated by the second threaded rod 7 so that the second bevel gear 9 rotates and drives the first bevel gear 8 to rotate through meshing transmission. The outer surface is meshed with a first bevel gear 8, and the first bevel gear 8 drives the first threaded rod 6 to rotate through rotation. One end of the first threaded rod 6 is fixedly connected to the rear end of the first bevel gear 8, and the outer surface of the first threaded rod 6 is threadedly connected with a clamping block 11, which is driven to rotate by the first bevel gear 8, so that the first threaded rod 6 drives the clamping block 11 to move left and right on the surface of the first threaded rod 6 through meshing transmission, thereby changing the clamping position of the clamping block 11, which is used to adapt to different types of relays. The upper end of the telescopic rod 3 is fixedly connected with a first spring 10, and the end of the first spring 10 away from the telescopic rod 3 is fixedly connected to the inner wall of the pressure rod 2. The first spring 10 is used to reset the telescopic rod 3 after the relay is taken out, so as to facilitate the next work and improve work efficiency.

[0028] The upper end of the clamping block 11 is slidably connected with a clamping plate 12, so that the user can adjust the position of the clamping plate 12 as needed. The clamping plate 12 is internally slidably connected with a limit rod 13, which can be fixed at a specific position of the clamping plate 12 to ensure that the clamping plate 12 does not exceed the expected sliding range during use. The limit rod 13 is used to maintain the stability of the sliding of the clamping plate 12. The clamping plate 12 is fixedly connected with a second spring 14 at one end close to the clamping block 11. The second spring 14 is used to provide the power for the clamping plate 12 to reset after moving, ensuring the normal operation of the clamping plate 12 next time, and ensuring the stability and reliability of the clamping plate 12 during operation. Whether in the process of clamping an object or after releasing the object, the second spring 14 can provide enough force to keep the position of the clamping plate 12 unchanged. In this way, the user does not need to make extra efforts to maintain the position of the clamping plate 12, so that the operation is more convenient and efficient. In addition, the design of the second spring 14 also has a certain buffering effect. When the clamping plate 12 is subjected to excessive external force or impact, the second spring 14 can absorb part of the impact force, reduce damage to the clamping plate 12 and other components, and increase the service life of the equipment. The end of the second spring 14 away from the clamping plate 12 is fixedly connected to the upper end of the clamping plate 12, and the limit rod 13 passes through the inside of the second spring 14 and the inside of the clamping plate 12 in sequence. The second spring 14 can remain stable when contracted and will not deviate from the central axis, thereby improving the stability of the movement of the clamping plate 12 and making the work smoother. It can not only ensure the stability of the limit rod 13, but also effectively limit the movement range of the clamping plate 12. Whether in the process of clamping an object or in the process of releasing an object, the clamping plate 12 can maintain a stable movement trajectory without sudden shaking or loss of control. This makes the working process smoother, reduces the occurrence of unexpected situations, and improves work efficiency;

[0029] The outer surface of the first threaded rod 6 is slidably connected with two reset blocks 15, and the two reset blocks 15 are fixedly connected with a third spring 16 at one end relative to each other. The function of the third spring 16 is to provide elastic support force for the reset block 15. When the reset block 15 is subjected to external force, the third spring 16 will be compressed or stretched, thereby generating elastic force. This elastic force can help the reset block 15 return to its initial position and maintain its stability and reliability. The reset block 15 is threadedly connected to the outer surface of the first threaded rod 6, so the reset block 15 can drive the first threaded rod 6 to reverse, thereby driving the second threaded rod 7 to reverse. The number of the clamping blocks 11 is two, and they are respectively threadedly connected to the left and right ends of the first threaded rod 6. The first threaded rod 6 is a bidirectional threaded rod, thereby realizing the clamping and releasing operation of the object. By adjusting the position of the clamping block 11, the size of the clamping force can be flexibly controlled as needed. The outer wall of the telescopic rod 3 is attached to the inner wall of the pressure rod 2, and the end of the limit rod 13 away from the clamping plate 12 is fixedly connected to the upper end of the clamping plate 12, thereby improving the stability of the device during operation.

[0030] The working principle of the test fixture of the relay is as follows: the staff puts the relay into the card slot 4, and then presses the card plate 1. The card plate 1 drives the pressure rod 2 to move downward by pressing down. The downward movement of the pressure rod 2 drives the telescopic rod 3 to move downward. The downward movement of the telescopic rod 3 drives the second threaded rod 7 to rotate. The rotation of the second threaded rod 7 drives the second bevel gear 9 to rotate. The rotation of the second bevel gear 9 drives the first bevel gear 8 to rotate. The rotation of the first bevel gear 8 drives the first threaded rod 6 to rotate. The rotation of the first threaded rod 6 drives the clamping block 11 to move. The relay is clamped by the continuous movement of the clamping block 11.

[0031] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A relay test fixture, comprising a card board (1), characterized in that: The lower end of the clamping plate (1) is fixedly connected to a pressure rod (2), the inner wall of the pressure rod (2) is slidably connected to a telescopic rod (3), a thread groove (5) is provided inside the telescopic rod (3), the inner wall of the thread groove (5) is threadedly connected to a second threaded rod (7), the lower end of the second threaded rod (7) is rotatably connected to the bottom wall of the clamping groove (4), the lower end of the telescopic rod (3) is slidably connected to the clamping groove (4), the inner wall of the clamping groove (4) is fixedly connected to a fixing block (17), the inside of the fixing block (17) is rotatably connected to a first threaded rod (6), the lower end of the second threaded rod (7) is fixedly connected to a second bevel gear (9), the outer surface of the second bevel gear (9) is meshedly connected to a first bevel gear (8), one end of the first threaded rod (6) is fixedly connected to the rear end of the first bevel gear (8), and the outer surface of the first threaded rod (6) is threadedly connected to a clamping block (11).

2. A relay test fixture according to claim 1, characterized in that: The upper end of the telescopic rod (3) is fixedly connected to a first spring (10), and one end of the first spring (10) away from the telescopic rod (3) is fixedly connected to the inner wall of the pressure rod (2).

3. A relay test fixture according to claim 1, characterized in that: The upper end of the clamping block (11) is slidably connected to a clamping plate (12), and the clamping plate (12) is internally slidably connected to a limiting rod (13). One end of the clamping plate (12) close to the clamping block (11) is fixedly connected to a second spring (14), and one end of the second spring (14) away from the clamping plate (12) is fixedly connected to the upper end of the clamping plate (12), and the limiting rod (13) passes through the interior of the second spring (14) and the interior of the clamping plate (12) in sequence.

4. A relay test fixture according to claim 1, characterized in that: The outer surface of the first threaded rod (6) is slidably connected to two reset blocks (15), and the two reset blocks (15) are fixedly connected to a third spring (16) at opposite ends thereof, and the interior of the reset block (15) is threadedly connected to the outer surface of the first threaded rod (6).

5. A relay test fixture according to claim 1, characterized in that: The number of the clamping blocks (11) is two, and they are respectively threadedly connected to the left and right ends of the first threaded rod (6), and the first threaded rod (6) is a bidirectional threaded rod.

6. A relay test fixture according to claim 1, characterized in that: The outer wall of the telescopic rod (3) is in contact with the inner wall of the pressure rod (2).

7. A relay test fixture according to claim 3, characterized in that: One end of the limiting rod (13) away from the clamping plate (12) is fixedly connected to the upper end of the clamping plate (12).

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