Relay vacuum testing device

Abstract

The utility model discloses a relay vacuum testing device which comprises a shell and a movable sealing plate arranged on the top of the shell, a partition plate is installed on the inner wall of the shell, a wiring terminal table is installed on the top of the partition plate, an air inlet pipe communicated with the shell is installed on the right side of the shell, and the relay vacuum testing device further comprises an adjusting plate. The adjusting plate is arranged above the sealing plate, and an annular plate is installed on the left side of the bottom of the adjusting plate. According to the utility model, through mutual cooperation of the housing, the sealing plate, the separator plate, the wiring terminal block, the air inlet pipe, the adjusting plate, the annular plate, the slot, the supporting block, the insertion block, the annular groove, the annular block, the threaded rod, the rotating block, the positioning rod, the sealing ring, the positioning groove, the positioning block, the vacuum pump and the distribution board body, the relay vacuum testing device is realized. The sealing performance of the relay during testing in a vacuum environment is ensured, and the phenomenon of air leakage is avoided, so that the accuracy of relay testing is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of relay testing, in particular to a relay vacuum testing device. Background Technique

[0002] A relay is an automatic switching element with isolation function, which is widely used in remote control, telemetry, communication, automatic control, mechatronics and power electronic equipment. It is one of the most important control elements. After the relay is produced, various technical parameters of the relay need to be tested in a vacuum working environment to evaluate its product performance in the vacuum environment, so as to confirm whether it can meet the working needs of different working environments.

[0003] According to the application number: CN201520519576.9, a relay vacuum testing device includes a box body, a vacuum tank box, a distribution board and a vacuum pump. The distribution board and the vacuum pump are installed in the box body, and the vacuum tank box is installed on the workbench at the top of the box body; the vacuum tank box includes a vacuum tank body and a sealing cover hinged to the vacuum tank body, and a wiring terminal table is installed in the vacuum tank of the vacuum tank body; a test wire is connected to one side of the wiring terminal table, and the test wire passes through the wire passing hole of the vacuum tank body and then passes through the top of the box body to be connected to the distribution board in the box body; the vacuum tank body is also communicated with two vacuum pumping air pipes, one vacuum pumping air pipe is connected in series with a solenoid valve and a vacuum pressure gauge, and the other vacuum pumping air pipe is connected to the vacuum pump in the box body; a start switch is also arranged beside the vacuum tank box, and the start switch is connected to the distribution board in the box body.

[0004] In the above case, the vacuum tank is sealed and fixed by the sealing cover, resulting in a poor sealing effect, affecting the testing effect of the relay in the vacuum environment and reducing the testing accuracy. Content of the Utility Model

[0005] The purpose of the utility model is to provide a relay vacuum testing device to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: A relay vacuum testing device, including a housing, and a movable sealing plate arranged on the top of the housing. A partition is installed on the inner wall of the housing, and a terminal block is installed on the top of the partition. An air inlet pipe communicated with the housing is installed on the right side of the housing. It further includes an adjusting plate, which is arranged above the sealing plate. A circular plate is installed on the left side of the bottom of the adjusting plate, and a slot is opened at the bottom of the circular plate. A support block is installed on the left side of the housing, and a plug is installed on the top of the support block at a position corresponding to the slot. The top of the plug penetrates through the slot and extends into it to be in rotational contact with the inner wall of the slot. The shapes of the slot and the plug are both cylindrical. An annular groove is opened on the surface of the plug inside the slot, and an annular block is installed on the surface of the plug at a position corresponding to the annular groove. The surface of the annular block is in rotational contact with the inner wall of the annular groove. A threaded rod rotatably connected to the adjusting plate through a bearing is installed in the groove on the top of the sealing plate. The top of the threaded rod penetrates through the adjusting plate and extends to its outside, and a rotating block is installed at the top of the threaded rod. A positioning rod is installed on the left side of the top of the sealing plate, and the top of the positioning rod penetrates through the adjusting plate and extends to its outside. A sealing ring is installed at the bottom of the sealing plate inside the housing. Positioning grooves are opened on the left and right sides of the bottom of the sealing plate, and positioning blocks are installed on the top of the housing at positions corresponding to the positioning grooves.

[0007] Preferably, a vacuum pump is installed on the left side of the housing, and a power distribution board body is installed on the bottom of the inner wall of the housing. The power distribution board body is connected to the terminal block through a wire.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] Through the mutual cooperation of the housing, the sealing plate, the partition, the terminal block, the air inlet pipe, the adjusting plate, the circular plate, the slot, the support block, the plug, the annular groove, the annular block, the threaded rod, the rotating block, the positioning rod, the sealing ring, the positioning groove, the positioning block, the vacuum pump and the power distribution board body, the utility model realizes a relay vacuum testing device, ensures the sealing performance during the test of the relay in a vacuum environment, avoids the phenomenon of air leakage, and thus avoids affecting the accuracy of the relay test. Description of the Drawings

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0011] Figure 2 It is a structural sectional view of the front view of the utility model;

[0012] Figure 3 It is a three-dimensional structural schematic diagram of the plug and the annular block of the utility model.

[0013] In the figure: 1 housing, 2 sealing plate, 3 partition board, 4 terminal block, 5 intake pipe, 6 adjusting plate, 7 annular plate, 8 slot, 9 support block, 10 insertion block, 11 annular groove, 12 annular block, 13 threaded rod, 14 rotating block, 15 positioning rod, 16 sealing ring, 17 positioning groove, 18 positioning block, 19 vacuum pump, 20 main body of distribution board. Detailed implementation mode

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0015] Please refer to Figures 1-3 , a relay vacuum testing device, comprising a housing 1 and a movable sealing plate 2 arranged on the top of the housing 1. The bottom of the sealing plate 2 is in contact with the top of the housing 1. A partition board 3 is fixedly connected to the inner wall of the housing 1, a terminal block 4 is fixedly connected to the top of the partition board 3, an intake pipe 5 communicated with the housing 1 is fixedly connected to the right side of the housing 1, and a valve is arranged on the intake pipe 5.

[0016] It further includes an adjusting plate 6 which is arranged above the sealing plate 2. On the left side of the bottom of the adjusting plate 6, an annular plate 7 is fixedly connected. An insertion slot 8 is formed in the bottom of the annular plate 7. A support block 9 is fixedly connected to the left side of the housing 1. At the position corresponding to the insertion slot 8 on the top of the support block 9, an insertion block 10 is fixedly connected. The top of the insertion block 10 penetrates through the insertion slot 8 and extends into its interior to be in rotational contact with the inner wall of the insertion slot 8. Both the insertion slot 8 and the insertion block 10 are cylindrical in shape. An annular groove 11 is formed in the interior of the insertion slot 8 and on the surface of the insertion block 10. At the position corresponding to the annular groove 11 on the surface of the insertion block 10, an annular block 12 is fixedly connected. The surface of the annular block 12 is in rotational contact with the inner wall of the annular groove 11. In the groove on the top of the sealing plate 2, a threaded rod 13 which is threadedly connected to the adjusting plate 6 is rotatably connected through a bearing. The top end of the threaded rod 13 penetrates through the adjusting plate 6 and extends to its exterior. The top end of the threaded rod 13 is fixedly connected with a rotating block 14. On the left side of the top of the sealing plate 2, a positioning rod 15 is fixedly connected. The top end of the positioning rod 15 penetrates through the adjusting plate 6 and extends to its exterior. By arranging the positioning rod 15, the stability of the sealing plate 2 during movement is improved. At the bottom of the sealing plate 2 and inside the housing 1, a sealing ring 16 is fixedly connected. The surface of the sealing ring 16 is in contact with the inner wall of the housing 1. By arranging the sealing ring 16, the sealing performance between the sealing plate 2 and the housing 1 is further improved. On the left and right sides of the bottom of the sealing plate 2, positioning grooves 17 are formed. At the position corresponding to the positioning grooves 17 on the top of the housing 1, positioning blocks 18 are fixedly connected. The top of the positioning blocks 18 penetrates through the positioning grooves 17 and extends into their interiors to be in contact with the inner walls of the positioning grooves 17.

[0017] A vacuum pump 19 is fixedly connected to the left side of the housing 1. The vacuum pump 19 is connected to the housing 1 through an air suction pipe. At the bottom of the inner wall of the housing 1, a power distribution board body 20 is fixedly connected. The power distribution board body 20 is connected to the terminal block 4 through a wire.

[0018] Furthermore, a fixed door is movably connected to the front of the housing 1 and at the bottom of the partition board 3 through a hinge.

[0019] Through the mutual cooperation of the housing 1, the sealing plate 2, the partition board 3, the terminal block 4, the air inlet pipe 5, the adjusting plate 6, the annular plate 7, the insertion slot 8, the support block 9, the insertion block 10, the annular groove 11, the annular block 12, the threaded rod 13, the rotating block 14, the positioning rod 15, the sealing ring 16, the positioning groove 17, the positioning block 18, the vacuum pump 19 and the power distribution board body 20, a relay vacuum testing device is realized, which ensures the sealing performance during the testing of the relay in a vacuum environment, avoids the phenomenon of air leakage, and thus avoids affecting the accuracy of the relay testing.

[0020] During use, rotate the rotary block 14. The rotary block 14 drives the threaded rod 13 to rotate and move upward. The threaded rod 13 drives the sealing plate 2 to move upward, causing the positioning groove 17 and the positioning block 18 to separate, and the sealing ring 16 and the housing 1 to separate. Then rotate the adjusting plate 6. The adjusting plate 6 rotates 180 degrees around the inserting block 10, causing the annular block 12 to rotate within the annular groove 11, opening the top of the housing 1. Place the relay on the terminal block 4, connect the respective pins of the relay to the respective terminals of the terminal block 4. Then seal the top of the housing 1 through the sealing plate 2. Start the vacuum pump 19 to extract the gas above the partition plate 3, making the interior of the housing 1 in a vacuum state. Then test the relay. The comparison case has already disclosed how to test the relay, and will not be elaborated here. After the test is completed, open the valve on the air inlet pipe 5 to allow external gas to enter the interior of the housing 1. Then the sealing plate 2 can be opened to take out the relay.

[0021] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A relay vacuum testing device, characterized in that: It includes a housing (1), and a movable sealing plate (2) arranged on the top of the housing (1). A partition plate (3) is installed on the inner wall of the housing (1). A terminal block (4) is installed on the top of the partition plate (3). An air inlet pipe (5) communicated with the housing (1) is installed on the right side of the housing (1). It further includes an adjusting plate (6). The adjusting plate (6) is arranged above the sealing plate (2). A circular plate (7) is installed on the left side of the bottom of the adjusting plate (6). A slot (8) is opened at the bottom of the circular plate (7). A support block (9) is installed on the left side of the housing (1). A plug block (10) is installed on the top of the support block (9) at a position corresponding to the slot (8). The top of the plug block (10) penetrates through the slot (8) and extends into it to be in rotational contact with the inner wall of the slot (8). The shapes of both the slot (8) and the plug block (10) are cylindrical. An annular groove (11) is opened on the surface of the plug block (10) inside the slot (8). An annular block (12) is installed on the surface of the plug block (10) at a position corresponding to the annular groove (11). The surface of the annular block (12) is in rotational contact with the inner wall of the annular groove (11). A threaded rod (13) threadedly connected to the adjusting plate (6) is rotatably connected to the groove at the top of the sealing plate (2) through a bearing. The top of the threaded rod (13) penetrates through the adjusting plate (6) and extends to its outside. A rotating block (14) is installed at the top of the threaded rod (13). A positioning rod (15) is installed on the left side of the top of the sealing plate (2). The top of the positioning rod (15) penetrates through the adjusting plate (6) and extends to its outside. A sealing ring (16) is installed at the bottom of the sealing plate (2) inside the housing (1). Positioning grooves (17) are opened on both the left and right sides of the bottom of the sealing plate (2). Positioning blocks (18) are installed on the top of the housing (1) at positions corresponding to the positioning grooves (17).

2. The relay vacuum testing device according to claim 1, wherein: A vacuum pump (19) is installed on the left side of the housing (1). A power distribution board body (20) is installed on the bottom of the inner wall of the housing (1). The power distribution board body (20) is connected to the terminal block (4) through a wire.

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