Hydraulic station pressure gauge convenient to install

Abstract

The utility model discloses a hydraulic station pressure gauge convenient to install, which comprises a pressure gauge shell, the inner wall of the pressure gauge shell is fixedly connected with a dial plate, the front surface of the dial plate is rotatably connected with a pointer, the front surface of the pressure gauge shell is provided with scales, the side surface of the pressure gauge shell is fixedly connected with a pressure connecting pipe, and the side surface of the pressure connecting pipe is rotatably connected with a pointer. A leakage stopping rubber sleeve is fixedly connected to the side surface of the pressure connecting pipe, an air inlet pipe and a non-return device are arranged on the side surface of the leakage stopping rubber sleeve, the non-return device comprises a limiting disc, a threaded sleeve, a non-return disc, a connecting plate, a sliding sleeve, a sliding column, a spring and a non-return clamping block, a non-return groove is formed in the non-return disc, and through the non-return device, the non-return clamping block is arranged in the non-return groove. According to the utility model, the rotation of the threaded sleeve can be stopped, the looseness of the connection part is effectively prevented, the durability of the connection part is improved, the leakage caused by looseness can be prevented, the safety of the pressure gauge of the hydraulic station in the use process is greatly improved, the installation is simple and convenient, and the convenience is extremely high.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauges, in particular to a hydraulic station pressure gauge which is easy to install. Background Art

[0002] The hydraulic station pressure gauge is one of the common instruments in the hydraulic system, which is used to measure the pressure of the hydraulic oil circuit in the hydraulic system. The hydraulic system uses liquid to transfer energy, transfers the driving power to the actuator, and realizes the operation of the engineering machinery. In the hydraulic system, accurate control and monitoring of pressure are very important, and the hydraulic station pressure gauge, as an important measuring instrument, can provide real-time pressure data to help operators understand the working condition of the hydraulic system and ensure the normal operation of the system.

[0003] However, common pressure gauges are connected to hydraulic pipes through threads. Due to long-term pressure, the threaded connections are prone to rotation or loosening, resulting in air and liquid leakage, posing certain safety hazards. After searching, it was found that the technical solution provided by the utility model with application number CN202123019527.3 also has the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a hydraulic station pressure gauge that is easy to install. The anti-return device can prevent the threaded sleeve from rotating, effectively prevent the loosening of the connection part, improve the durability of the connection part, and prevent leakage caused by loosening, thereby greatly improving the safety of the hydraulic station pressure gauge during use. At the same time, the installation is simple and convenient, and it is extremely convenient.

[0005] The utility model also provides a hydraulic station pressure gauge having the above-mentioned easy-to-install pressure gauge, a pressure gauge case, a dial fixedly connected to the inner wall of the pressure gauge case, a pointer rotatably connected to the front surface of the dial, a scale arranged on the front surface of the pressure gauge case, a pressure connecting pipe fixedly connected to the side surface of the pressure gauge case, a leak-proof rubber sleeve fixedly connected to the side surface of the pressure connecting pipe, and an air inlet pipe arranged on the side surface of the leak-proof rubber sleeve;

[0006] The anti-return device includes a limit plate, a threaded sleeve, a anti-return plate, a connecting plate, a sliding sleeve, a sliding column, a spring and an anti-return block. The lower surface of the limit plate is fixedly connected to the threaded sleeve, the interior of the threaded sleeve is fixedly connected to the connecting plate, the lower surface of the connecting plate is fixedly connected to the sliding sleeve, the inner surface of the sliding sleeve is slidably connected to the sliding column, the lower surface of the sliding column is fixedly connected to the anti-return block, and the interior of the anti-return plate is provided with a anti-return groove.

[0007] According to the hydraulic station pressure gauge which is easy to install, the pressure gauge housing is connected to the pressure connecting pipe for transmitting the pressure to the inside of the pressure gauge.

[0008] According to the hydraulic station pressure gauge which is easy to install, the inner surface of the limit plate is rotatably connected to the pressure connecting pipe, and the inner surface of the threaded sleeve is threadably connected to the air inlet pipe.

[0009] According to the hydraulic station pressure gauge that is easy to install, the inner surface of the non-return disk is fixedly connected to the air intake pipe, and the non-return blocks are multiple in number and distributed in a ring array.

[0010] According to the hydraulic station pressure gauge which is easy to install, the non-return groove is matched with the non-return block, and the number of the non-return grooves is multiple and distributed in a ring array.

[0011] According to the hydraulic station pressure gauge which is easy to install, the upper end of the spring is fixedly connected to the connecting plate, and the lower end of the spring is fixedly connected to the non-return block, and the non-return block is continuously stuck in the non-return groove by the elastic force of the spring.

[0012] According to the hydraulic station pressure gauge which is easy to install, the side surface of the pressure connecting pipe is threadedly connected with a limit nut, and the lower surface of the limit nut is in contact with the limit plate for secondary reinforcement, which greatly improves the safety of the equipment.

[0013] According to the hydraulic station pressure gauge which is easy to install, a slide groove is provided inside the threaded sleeve, and the inner surface of the slide groove is slidably connected to the anti-return block.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a hydraulic station pressure gauge that is easy to install in the utility model;

[0017] Figure 2 This is a partial structural sectional view of a hydraulic station pressure gauge that is easy to install according to the utility model;

[0018] Figure 3 This is a partial structural exploded diagram of a hydraulic station pressure gauge that is easy to install according to the utility model;

[0019] Figure 4 for Figure 2 A schematic diagram of the enlarged structure in the middle.

[0020] Legend:

[0021] 1. Pressure gauge case; 2. Dial; 3. Pointer; 4. Scale; 5. Pressure connecting pipe; 6. Leak-proof rubber sleeve; 7. Inlet pipe; 8. Limit plate; 9. Threaded sleeve; 10. Check plate; 11. Connecting plate; 12. Sliding sleeve; 13. Sliding column; 14. Spring; 15. Check block; 16. Check groove; 17. Slide groove; 18. Limit nut; 19. Check device. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4 The utility model embodiment is a hydraulic station pressure gauge which is easy to install, comprising a pressure gauge case 1, a dial 2 is fixedly connected to the inner wall of the pressure gauge case 1, a pointer 3 is rotatably connected to the front surface of the dial 2, a scale 4 is arranged on the front surface of the pressure gauge case 1, a pressure connecting pipe 5 is fixedly connected to the side surface of the pressure gauge case 1, a leak-proof rubber sleeve 6 is fixedly connected to the side surface of the pressure connecting pipe 5, an air intake pipe 7 is arranged on the side surface of the leak-proof rubber sleeve 6, the pressure gauge case 1 is connected to the pressure connecting pipe 5, a limiting nut 18 is threadedly connected to the side surface of the pressure connecting pipe 5, and the lower surface of the limiting nut 18 is in contact with the limiting disk 8.

[0024] The anti-return device 19 includes a limit plate 8, a threaded sleeve 9, a non-return plate 10, a connecting plate 11, a sliding sleeve 12, a sliding column 13, a spring 14 and a non-return block 15. The inner surface of the limit plate 8 is rotatably connected to the pressure connecting pipe 5, the lower surface of the limit plate 8 is fixedly connected to the threaded sleeve 9, the inner surface of the threaded sleeve 9 is threadedly connected to the intake pipe 7, the interior of the threaded sleeve 9 is fixedly connected to the connecting plate 11, the lower surface of the connecting plate 11 is fixedly connected to the sliding sleeve 12, the inner surface of the sliding sleeve 12 is slidably connected to the sliding column 13, and the sliding column The lower surface of 13 is fixedly connected to the non-return block 15, the number of the non-return blocks 15 is multiple and distributed in a circular array, the upper end of the spring 14 is fixedly connected to the connecting plate 11, the lower end of the spring 14 is fixedly connected to the non-return block 15, the inner surface of the non-return disk 10 is fixedly connected to the intake pipe 7, the inside of the non-return disk 10 is provided with a non-return groove 16, the non-return groove 16 is adapted to the non-return block 15, the number of the non-return grooves 16 is multiple and distributed in a circular array, the inside of the threaded sleeve 9 is provided with a slide groove 17, the inner surface of the slide groove 17 is slidably connected to the non-return block 15.

[0025] Working principle: during installation, hold the pressure connecting pipe 5, fix the leak-proof rubber sleeve 6 on the side surface of the pressure connecting pipe 5, and then insert it into the intake pipe 7. The elasticity of the leak-proof rubber sleeve 6 makes the pressure connecting pipe 5 and the intake pipe 7 achieve preliminary sealing, and then rotate the limit plate 8 to make the limit plate 8 drive the threaded sleeve 9 to be threadedly connected with the intake pipe 7. During the rotation and continuous decline of the threaded sleeve 9, the lower end of the non-return block 15 is driven to continuously sweep the non-return groove 16 in the non-return disk 10. During this process, the spring 14 will repeatedly push the non-return block 15 into the non-return groove 16 until the rotation of the threaded sleeve 9 is stopped. Since the back side of the non-return block 15 is completely stuck in the non-return groove 16, the threaded sleeve 9 cannot rotate relative to the non-return disk 10, thereby ensuring the sealing of the intake pipe 7 and the pressure connecting pipe 5, making the equipment more durable, and finally tightening the limit nut 18 for secondary reinforcement to prevent the pressure connecting pipe 5 from loosening relative to the limit plate 8. The installation process is simple and convenient.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A hydraulic station pressure gauge that is easy to install, characterized in that: include: A pressure gauge case (1), wherein a dial (2) is fixedly connected to the inner wall of the pressure gauge case (1), a pointer (3) is rotatably connected to the front surface of the dial (2), a scale (4) is provided on the front surface of the pressure gauge case (1), a pressure connecting pipe (5) is fixedly connected to the side surface of the pressure gauge case (1), a leak-proof rubber sleeve (6) is fixedly connected to the side surface of the pressure connecting pipe (5), and an air inlet pipe (7) is provided on the side surface of the leak-proof rubber sleeve (6); A backflow prevention device (19), the backflow prevention device (19) comprising a limit plate (8), a threaded sleeve (9), a backflow prevention plate (10), a connecting plate (11), a sliding sleeve (12), a sliding column (13), a spring (14) and a backflow prevention block (15), the lower surface of the limit plate (8) is fixedly connected to the threaded sleeve (9), the interior of the threaded sleeve (9) is fixedly connected to the connecting plate (11), the lower surface of the connecting plate (11) is fixedly connected to the sliding sleeve (12), the inner surface of the sliding sleeve (12) is slidingly connected to the sliding column (13), the lower surface of the sliding column (13) is fixedly connected to the backflow prevention block (15), and a backflow prevention groove (16) is provided inside the backflow prevention plate (10).

2. A hydraulic station pressure gauge that is easy to install according to claim 1, characterized in that: The pressure gauge housing (1) is connected to the pressure connecting pipe (5).

3. A hydraulic station pressure gauge that is easy to install according to claim 1, characterized in that: The inner surface of the limit plate (8) is rotatably connected to the pressure connecting pipe (5), and the inner surface of the threaded sleeve (9) is threadably connected to the air inlet pipe (7).

4. A hydraulic station pressure gauge that is easy to install according to claim 1, characterized in that: The inner surface of the non-return disk (10) is fixedly connected to the air intake pipe (7), and the non-return blocks (15) are multiple in number and distributed in a ring array.

5. The easy-to-install hydraulic station pressure gauge according to claim 1, characterized in that: The non-return groove (16) is adapted to the non-return block (15), and the non-return groove (16) is in multiple number and distributed in a ring array.

6. A hydraulic station pressure gauge that is easy to install according to claim 1, characterized in that: The upper end of the spring (14) is fixedly connected to the connecting plate (11), and the lower end of the spring (14) is fixedly connected to the anti-return block (15).

7. The easy-to-install hydraulic station pressure gauge according to claim 1, characterized in that: The side surface of the pressure connecting pipe (5) is threadedly connected to a limiting nut (18), and the lower surface of the limiting nut (18) is in contact with the limiting plate (8).

8. The easy-to-install hydraulic station pressure gauge according to claim 1, characterized in that: A sliding groove (17) is provided inside the threaded sleeve (9), and the inner surface of the sliding groove (17) is slidably connected to the anti-return block (15).

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