Gas relay clamping mechanism

Abstract

The utility model relates to the technical field of gas relay detection, and provides a gas relay clamping mechanism which comprises a detection table main body, a connecting pipe is arranged on the upper portion of the detection table main body, a gas relay body is arranged in the middle of the connecting pipe, and a lifting plate is arranged in the detection table main body. The device comprises a lifting plate, two first sliding grooves are formed in the top of the lifting plate, two sliding blocks are slidably connected to the interiors of the two first sliding grooves, two clamping plates are arranged at the top of the lifting plate, a servo motor is arranged on one side of the exterior of the lifting plate, and a supporting plate is fixedly connected to the bottom of the servo motor. According to the technical scheme, the problems that in the prior art, when a gas relay detection table clamps gas relays, due to the fact that different models and sizes exist, a clamping mechanism cannot adapt to the gas relays, more time and effort need to be consumed to find a proper clamping mode or adjust the clamping mechanism, and the clamping mechanism cannot adapt to the gas relays are solved. And therefore, the overall working efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas relay detection, in particular to a gas relay clamping mechanism. Background Art

[0002] The gas relay is an important component of the gas relay test bench and an important safety protection device on the oil-immersed transformer. It is installed on the connecting pipe between the transformer cover and the oil conservator. Under the action of gas or oil flow generated by internal faults in the transformer, it connects the signal or trip circuit, causing the relevant devices to send out alarm signals or cut off the transformer from the power grid, thereby protecting the transformer.

[0003] Patent specification with announcement number CN217238298U discloses a single-pipe gas relay test bench, including an oil tank, a connecting pipe fixed on the upper side of the oil tank, a gas relay installed in the middle of the connecting pipe, and a first clamping plate and a second clamping plate respectively installed on both sides of the gas relay.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: the above device is not convenient for accurately and stably clamping and fixing the relay during use, and the clamping and fixing are performed by manually operating the clamping mechanism, which will be affected by human factors, resulting in the clamping mechanism being unable to achieve precise position and force when clamping the gas relay, thereby affecting the accuracy and reliability of the test. Therefore, further improvement is needed. Utility Model Content

[0005] The utility model proposes a gas relay clamping mechanism, which solves the problem that when a gas relay test bench established in the related art clamps gas relays, the clamping mechanism cannot adapt due to the problem of different models and sizes, and more time and energy are required to find a suitable clamping method or adjust the clamping mechanism, thereby reducing the overall work efficiency.

[0006] The technical solution of the utility model is as follows:

[0007] A gas relay clamping mechanism includes a test platform body, a connecting pipe is provided on the upper part of the test platform body, a gas relay body is installed in the middle part of the connecting pipe, a lifting plate is provided inside the test platform body, two sliding grooves 1 are provided on the top of the lifting plate, and two sliding blocks are connected to each other through sliding connection inside the two sliding grooves 1, two clamping plates are provided on the top of the lifting plate, a servo motor is provided on one side of the outside of the lifting plate, a support plate is fixedly connected to the bottom of the servo motor, and the servo motor is fixedly connected to gear 1 through an output shaft, one end of the inner cavity of one of the sliding grooves 1 is connected to a screw rod through a bearing, and one end of the screw rod is fixedly connected to gear 2.

[0008] Preferably, the four sliding blocks are symmetrically distributed in pairs, and the four sliding blocks are fixedly connected to the two clamping plates respectively.

[0009] Preferably, the support plate is fixedly connected to an outer side of the lifting plate, and the gear 1 is connected to the lifting plate via a bearing.

[0010] Preferably, the gear 2 is connected to one end of the inner cavity of one of the sliding grooves 1 through a bearing, and the gear 1 and the gear 2 are meshed with each other.

[0011] Preferably, the two clamping plates are symmetrically distributed, and the screw rod is connected to the two sliding blocks inside one of the sliding grooves through a ball nut pair.

[0012] Preferably, a second sliding groove is provided inside the main body of the testing platform, and the lifting plate is connected to the second sliding groove by sliding.

[0013] Preferably, a cylinder is fixedly connected to the bottom of the inner cavity of the detection platform body, a piston rod is provided inside the cylinder, and the top end of the piston rod is fixedly connected to the bottom of the lifting plate.

[0014] Preferably, a sliding groove three is provided inside each of the two clamping plates, and the connecting pipe is in contact with the inside of the sliding groove three.

[0015] The working principle and beneficial effects of the utility model are as follows:

[0016] In the utility model, the gas relay body is clamped and fixed by moving the two clamping plates, which can adapt to gas relays of different sizes and shapes, greatly improving the compatibility of the equipment while ensuring the stability and accuracy of the clamping. This solves the problem that when the gas relay test bench clamps the gas relays, the clamping mechanism cannot adapt to the different models and sizes, and it takes more time and effort to find a suitable clamping method or adjust the clamping mechanism, which reduces the overall work efficiency.

[0017] In the utility model, the gas relay body is moved upward to a suitable height as the lifting plate moves upward. By adjusting the height of the lifting plate, it can adapt to gas relay bodies of different models and sizes while ensuring that the gas relay body is correctly placed in the clamping mechanism, thereby achieving stable clamping and accurate testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 A magnified view of point A in the figure;

[0021] Figure 3 It is a partial structural diagram of the utility model;

[0022] Figure 4 It is a cross-sectional schematic diagram of the overall structure of the utility model;

[0023] Figure 5 For this utility model Figure 4 Enlarged view of point B in .

[0024] In the figure: 1. Test bench body; 2. Connecting pipe; 3. Gas relay body; 4. Lifting plate; 5. Sliding groove 1; 6. Sliding block; 7. Clamp; 8. Servo motor; 9. Support plate; 10. Gear 1; 11. Screw; 12. Gear 2; 13. Sliding groove 2; 14. Sliding groove 3; 15. Cylinder; 16. Piston rod. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0026] like Figures 1 to 5 As shown, this embodiment proposes a gas relay clamping mechanism, including a test platform main body 1, a connecting tube 2 is provided on the upper part of the test platform main body 1, a gas relay body 3 is installed in the middle part of the connecting tube 2, a lifting plate 4 is provided inside the test platform main body 1, two sliding grooves 5 are opened on the top of the lifting plate 4, and two sliding blocks 6 are connected to the inside of the two sliding grooves 5 by sliding, two clamping plates 7 are provided on the top of the lifting plate 4, and a servo motor 8 is provided on the outer side of the lifting plate 4, and the bottom of the servo motor 8 is fixedly connected to a support plate 9, and the servo motor 8 is fixedly connected to a gear 10 through an output shaft, and one end of the inner cavity of one sliding groove 5 is connected to a screw rod 11 through a bearing, and one end of the screw rod 11 is fixedly connected to a gear 2 12.

[0027] In this embodiment, the four sliding blocks 6 are symmetrically distributed in pairs, and the four sliding blocks 6 are fixedly connected to the two clamping plates 7 respectively, so that the sliding blocks 6 can move while driving the clamping plates 7 to move.

[0028] In this embodiment, the support plate 9 is fixedly connected to the outer side of the lifting plate 4, and the gear 10 is connected to the lifting plate 4 via a bearing, which makes it easier for the support plate 9 to fix the servo motor 8.

[0029] In this embodiment, gear 2 12 is connected to one end of the inner cavity of one of the sliding grooves 1 5 through a bearing, and gear 1 10 and gear 2 12 are engaged with each other, which can facilitate the rotation of gear 10 and drive gear 2 12 to rotate at the same time.

[0030] In this embodiment, the two splints 7 are symmetrically distributed, and the screw rod 11 is connected to the two sliding blocks 6 inside one of the sliding grooves 5 through a ball nut pair, which can facilitate the rotation of the screw rod 11 while driving the two sliding blocks 6 to move toward each other.

[0031] When in use, the staff first places the gas relay body 3 that needs to be clamped on the upper part of the lifting plate 4 and adjusts the appropriate position, and then connects the servo motor 8. After the servo motor 8 is energized, it will drive the gear 10 to rotate through the output shaft. When the gear 10 rotates, it will drive the gear 2 12 to rotate. When the gear 2 12 rotates, it will drive the screw rod 11 to rotate. When the screw rod 11 rotates, it will drive two of the sliding blocks 6 to move in opposite directions. When the two sliding blocks 6 move in opposite directions, they will drive the two splints 7 to move in opposite directions. When the two splints 7 move in opposite directions, they will drive the other two sliding blocks 6 to move in opposite directions. The movable blocks 6 move in opposite directions. When the two clamping plates 7 move in opposite directions and come into contact with the two sides of the gas relay body 3, the two clamping plates 7 will clamp and fix the gas relay body 3. When the gas relay body 3 needs to be disassembled, the servo motor 8 is controlled to rotate in the opposite direction, which will drive the two clamping plates 7 to move in the opposite direction relative to each other, thereby canceling the clamping of the gas relay body 3. By moving the two clamping plates 7 to clamp and fix the gas relay body 3, it can adapt to gas relays of different sizes and shapes, greatly improving the compatibility of the equipment while ensuring the stability and accuracy of the clamping. Example 2

[0032] like Figures 3 to 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a second sliding groove 13 is opened inside the detection platform body 1, and the lifting plate 4 is connected to the second sliding groove 13 by sliding.

[0033] In this embodiment, a cylinder 15 is fixedly connected to the bottom of the inner cavity of the detection platform body 1, and a piston rod 16 is provided inside the cylinder 15. The top end of the piston rod 16 is fixedly connected to the bottom of the lifting plate 4, which can facilitate the movement of the piston rod 16 and drive the lifting plate 4 to move at the same time.

[0034] In this embodiment, the interior of the two clamping plates 7 is provided with a sliding groove 3 14 , and the connecting tube 2 is in contact with the interior of the sliding groove 3 14 , which facilitates the clamping plates 7 to slide up and down along the exterior of the connecting tube 2 .

[0035] When in use, the staff first places the gas relay body 3 to be clamped on the lifting plate 4, and then starts the cylinder 15. When the cylinder 15 is started, it will drive the piston rod 16 to move upward. When the piston rod 16 moves upward, it will drive the lifting plate 4 to move upward along the inside of the sliding groove 13. When the lifting plate 4 moves upward, it will drive the gas relay body 3 to move upward to a suitable height. By adjusting the height of the lifting plate 4, it can adapt to gas relay bodies 3 of different models and sizes, and it can also ensure that the gas relay body 3 is correctly placed in the clamping mechanism, thereby achieving stable clamping and accurate testing.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas relay clamping mechanism, comprising a test bench body (1), characterized in that: A connecting tube (2) is provided on the upper part of the detection platform body (1), a gas relay body (3) is installed in the middle part of the connecting tube (2), a lifting plate (4) is provided inside the detection platform body (1), two sliding grooves (5) are provided on the top of the lifting plate (4), and two sliding blocks (6) are connected to the inside of the two sliding grooves (5) by sliding, two clamping plates (7) are provided on the top of the lifting plate (4), a servo motor (8) is provided on one side of the outside of the lifting plate (4), the bottom of the servo motor (8) is fixedly connected to a support plate (9), and the servo motor (8) is fixedly connected to a gear (10) through an output shaft, one end of the inner cavity of one of the sliding grooves (5) is connected to a screw rod (11) through a bearing, and one end of the screw rod (11) is fixedly connected to a gear (12).

2. A gas relay clamping mechanism according to claim 1, characterized in that: The four sliding blocks (6) are symmetrically distributed in pairs, and the four sliding blocks (6) are fixedly connected to the two clamping plates (7) respectively.

3. A gas relay clamping mechanism according to claim 1, characterized in that: The support plate (9) is fixedly connected to an outer side of the lifting plate (4), and the gear 1 (10) is connected to the lifting plate (4) via a bearing.

4. A gas relay clamping mechanism according to claim 1, characterized in that: The gear 2 (12) is connected to one end of the inner cavity of one of the sliding grooves (5) via a bearing, and the gear 1 (10) and the gear 2 (12) are meshed with each other.

5. A gas relay clamping mechanism according to claim 1, characterized in that: The two clamping plates (7) are symmetrically distributed, and the screw rod (11) is connected to the two sliding blocks (6) inside one of the sliding grooves (5) via a ball nut pair.

6. A gas relay clamping mechanism according to claim 5, characterized in that: A second sliding groove (13) is provided inside the main body (1) of the detection platform, and the lifting plate (4) is connected to the second sliding groove (13) by sliding.

7. A gas relay clamping mechanism according to claim 6, characterized in that: A cylinder (15) is fixedly connected to the bottom of the inner cavity of the detection platform body (1), a piston rod (16) is provided inside the cylinder (15), and the top end of the piston rod (16) is fixedly connected to the bottom of the lifting plate (4).

8. A gas relay clamping mechanism according to claim 7, characterized in that: The interiors of the two clamping plates (7) are each provided with a sliding groove three (14), and the connecting pipe (2) is in contact with the interiors of the sliding groove three (14).

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