A gas supplement device

Abstract

The application provides a gas supplement device, which comprises a body, an inlet pipe connected with a gas source and an outlet pipe for leading out gas, the outlet pipe comprises a first pipe section and a second pipe section and a partition plate separating the first pipe section and the second pipe section, the first pipe section is in communication with the body, the first pipe section is provided with a first communication hole, the second pipe section is provided with a second communication hole, a sliding sleeve covering the second communication hole is further arranged outside the outlet pipe, the outlet pipe is further fixedly sleeved with an outer pipe, and the outer wall of the sliding sleeve is in sliding connection with the inner wall of the outer pipe, when the sliding sleeve is separated from the second communication hole, the first communication hole, the outer pipe and the second communication hole form a passage, and a mechanical valve between the first communication hole and the body is further arranged on the first pipe section. The application solves the problem that oil leakage easily occurs at the mechanical valve in the prior art.

Description

Technical Field

[0001] This invention relates to the field of automatic air replenishment valve technology, and more particularly to an air replenishment device. Background Technology

[0002] An automatic air replenishment valve is used to replenish air pressure into the air tank within the governor system to prevent pressure loss due to high-pressure gas dissolving in the oil or leaks (the air tank has an oil-to-air ratio of 1:2 and a pressure exceeding 6 MPa, thus qualifying it as the driving medium for the governor system). In existing technology, the automatic air replenishment valve is installed between the air source and the governor system's air tank. The valve and tank are typically connected via an outlet pipe. Specifically, the air tank has a connecting pipe, and the outlet pipe connects to the automatic air replenishment valve. The connecting pipe and outlet pipe are connected by a connecting structure, and the connection between them is controlled by a mechanical valve on the outlet pipe. During operation, oil from the air tank may enter the inlet pipe, potentially causing oil leakage at the mechanical valve (the internal structure of the mechanical valve may wear down over time, resulting in larger gaps and increased leakage under pressure). Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an air replenishment device that solves the problem of oil leakage at mechanical valves in existing technologies.

[0004] According to an embodiment of the present invention, a gas replenishment device includes a body, the body having an inlet pipe connected to a gas source and an outlet pipe for discharging gas, the outlet pipe including a first pipe section and a second pipe section and a partition separating the two, wherein the first pipe section is in communication with the body, the first pipe section having a first connecting hole, the second pipe section having a second connecting hole, a sliding sleeve slidably disposed outside the outlet pipe, spaced and covering the second connecting hole, the outlet pipe also having an outer pipe fixedly fitted on it, and the outer wall of the sliding sleeve being slidably connected to the inner wall of the outer pipe, when the sliding sleeve is separated from the second connecting hole, the first connecting hole, the outer pipe, and the second connecting hole form a passage; a mechanical valve located between the first connecting hole and the body is also installed on the first pipe section.

[0005] In the above embodiments, the outlet pipe is configured as a first pipe section and a second pipe section. The connection and disconnection between the first pipe section and the second pipe section are realized by the sliding of the sliding sleeve. The probability of oil in the gas storage tank entering the first pipe section is lower, and therefore the probability of oil leakage at the mechanical valve is also lower. To a certain extent, oil leakage at the mechanical valve is avoided, and the problem of easy oil leakage at the mechanical valve in the prior art is solved.

[0006] Furthermore, the partition plate is provided with a sliding hole, and a sliding column is provided through the sliding hole. One end of the sliding column is fixedly connected to a first sliding disc that is slidably disposed in the first pipe section, and the other end is detachably connected to a second sliding disc that is slidably disposed in the second pipe section. The second sliding disc is also provided with a through hole that passes through both sides of it. The first sliding disc and the second sliding disc can simultaneously cover the corresponding first through hole and second through hole at intervals as the sliding column slides.

[0007] Furthermore, a guide post located inside the first pipe section is fixedly connected to the partition plate, and the first sliding disk is slidably connected to the guide post.

[0008] Furthermore, the second sliding disk has a square hole recessed on the side opposite to the sliding post, and the sliding post is threadedly connected to the second sliding disk.

[0009] Furthermore, a spring is also provided inside the outer tube, which is sleeved on the outside of the second tube section, and the spring and the first connecting hole are located on opposite sides of the sliding sleeve.

[0010] Furthermore, a guide groove is recessed on the inner wall of the outer tube, and a sliding block is fixedly connected to the sliding sleeve and slidably connected to the guide groove. Both the guide groove and the sliding block are opposite to the first communicating hole.

[0011] Furthermore, the length of the guide groove is greater than that of the sliding block, and the passage is formed when the sliding block abuts against the end of the guide groove away from the first connecting hole.

[0012] Furthermore, a pressure relief valve located between the mechanical valve and the outer pipe is also installed on the first pipe section.

[0013] Furthermore, a retaining ring is fixedly connected to the inner wall of the outer tube. The retaining ring is separate from the outlet tube and is located between the first connecting hole and the second connecting hole.

[0014] Furthermore, an installation ring is fixedly connected to the first pipe section, and one end of the outer pipe is threadedly connected to the installation ring, while the other end is threadedly connected to the second pipe section.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The outlet pipe is configured as a first pipe section and a second pipe section, with a first connecting hole and a second connecting hole respectively on each. A sliding sleeve is used to form a passage between the first connecting hole, the second connecting hole and the first pipe section and the second pipe section to achieve air replenishment. When air replenishment is not performed, the sliding sleeve closes the second connecting hole, making it difficult for oil to enter the first pipe section. Therefore, oil leakage at the mechanical valve is avoided to a certain extent, solving the problem of easy oil leakage at the mechanical valve in the prior art. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the outlet pipe structure according to an embodiment of the present invention;

[0019] In the above attached figures:

[0020] Body 1, Inlet pipe 2, Outlet pipe 3, First pipe section 4, Second pipe section 5, Partition 6, First connecting hole 7, Second connecting hole 8, Sliding sleeve 9, Outer pipe 10, Mechanical valve 11, Spring 12, Pressure relief valve 13, Retaining ring 14, Guide groove 15, Sliding block 16, Sliding column 17, First sliding plate 18, Second sliding plate 19, Through hole 20, Guide column 21, Square hole 22, Mounting ring 23, Screw 24. Detailed Implementation

[0021] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] like Figure 1 , 2As shown, this embodiment provides a gas replenishment device, which includes a body 1. The body 1 is provided with an inlet pipe 2 connected to a gas source and an outlet pipe 3 for discharging gas (the outlet pipe 3 is connected to a gas storage tank). The outlet pipe 3 includes a first pipe section 4 and a second pipe section 5, as well as a partition 6 separating the two. The first pipe section 4 is connected to the body 1 and is provided with a first connecting hole 7. The second pipe section 5 is provided with a second connecting hole 8. A sliding sleeve 9 is slidably disposed outside the outlet pipe 3, which covers the second connecting hole 8 at intervals. An outer pipe 10 is also fixedly sleeved on the outlet pipe 3, and the outer wall of the sliding sleeve 9 is slidably connected to the inner wall of the outer pipe 10. When the sliding sleeve 9 is separated from the second connecting hole 8, the first connecting hole 7, the outer pipe 10, and the second connecting hole 8 form a passage, thereby connecting the first pipe section 4 and the second pipe section 5. A mechanical valve 11 is also installed on the first pipe section 4, located between the first connecting hole 7 and the body 1.

[0024] In the above embodiment, the outlet pipe 3 is configured as a first pipe section 4 and a second pipe section 5. The connection and disconnection between the first pipe section 4 and the second pipe section 5 are achieved by the sliding of the sliding sleeve 9. The probability of oil in the gas storage tank entering the first pipe section 4 is lower, and therefore the probability of oil leakage at the mechanical valve 11 is also lower, which to a certain extent avoids oil leakage at the mechanical valve 11 and solves the problem of easy oil leakage at the mechanical valve 11 in the prior art. Specifically, when replenishing gas, the gas enters the first pipe section 4 and flows into the first connecting hole 7, enters the outer pipe 10, and then pushes the sliding sleeve 9 to move towards the second pipe section 5, thereby releasing the second connecting hole 8, so that the first pipe section 4 and the second pipe section 5 are connected to achieve gas replenishment. After the gas replenishment is completed, the sliding sleeve 9 returns to the initial position and re-covers the pipe. The second connecting hole 8 is covered, thus disconnecting the first pipe section 4 and the second pipe section 5. In a further embodiment, a spring 12 is also provided inside the outer pipe 10, which is sleeved on the second pipe section 5. The spring 12 and the first connecting hole 7 are located on opposite sides of the sliding sleeve 9. When replenishing air, the sliding sleeve 9 moves to compress the spring 12. After the compression is completed, the spring 12 recovers its deformation and assists the sliding sleeve 9 in resetting. In a more detailed technical solution, a pressure relief valve 13 is also installed on the first pipe section 4 between the mechanical valve 11 and the outer pipe 10. After the mechanical valve 11 is closed, the pressure relief valve 13 can be opened to reduce the pressure in the first pipe section 4 more quickly. In this way, with the assistance of the spring 12, the sliding sleeve 9 can reset more quickly, preventing a small amount of oil from entering the outer pipe 10 after a long time.

[0025] like Figure 2As shown, in a further embodiment, a retaining ring 14 is fixedly connected to the inner wall of the outer tube 10. The retaining ring 14 is separate from the outlet tube 3 and is located between the first connecting hole 7 and the second connecting hole 8. The retaining ring 14 is used to restrict the sliding sleeve 9 from continuing to move towards the first pipe segment 4, so as to prevent the sliding sleeve 9 from moving excessively towards the first pipe segment 4 and misaligning with the second connecting hole 8. Furthermore, a guide groove 15 is recessed on the inner wall of the outer tube 10. The sliding sleeve 9 is fixedly connected to a sliding block 16 that is slidably connected to the guide groove 15. Both the guide groove 15 and the sliding block 16 are opposite to the first connecting hole 7. The moving block 16 prevents the sliding sleeve 9 from rotating relative to the outer tube 10 and the outlet tube 3, ensuring smooth operation and preventing the spring 12 from twisting unexpectedly. In a more detailed technical solution, the guide groove 15 is longer than the sliding block 16. When the sliding block 16 abuts against the end of the guide groove 15 away from the first connecting hole 7, the passage is formed. That is, the movement of the sliding sleeve 9 is limited by the length of the guide groove 15, which, together with the retaining ring 14, ensures that the running stroke of the sliding sleeve 9 is fixed. In particular, when the sliding block 16 abuts against the end of the guide groove 15 away from the first connecting hole 7, the space between the guide groove 15, the sliding sleeve 9, and the retaining ring 14 is not connected.

[0026] like Figure 1 , 2 As shown, in a further embodiment, the partition 6 has a sliding hole, and a sliding column 17 is disposed through the sliding hole. One end of the sliding column 17 is fixedly connected to a first sliding disk 18 that is slidably disposed in the first pipe section 4, and the other end is detachably connected to a second sliding disk 19 that is slidably disposed in the second pipe section 5. The second sliding disk 19 also has a through hole 20 that passes through both sides of it. The first sliding disk 18 and the second sliding disk 19 can simultaneously cover the corresponding first connecting hole 7 and second connecting hole 8 as the sliding column 17 slides, so that the first connecting hole 7 and the second connecting hole 8 can be connected to the outer pipe 10 at the same time. Specifically, during gas replenishment, because the gas moves towards the first connecting hole 7 (i.e., Figure 2(As shown by the middle arrow), thus pushing the first sliding plate 18 to move, and driving the second sliding plate 19 to move through the sliding column 17, thereby opening the first connecting hole 7 and the second connecting hole 8. Further, gas enters the outer pipe 10 through the first connecting hole 7, thereby continuing to push the sliding sleeve 9 to move, realizing the connection between the first pipe section 4 and the second pipe section 5. Among them, after the gas enters the second pipe section 5, it is replenished through the through hole 20. When the gas replenishment stops, the pressure relief valve 13 is located between the first sliding plate 18 and the mechanical valve 11. After the pressure relief valve 13 is opened, the pressure on the side of the first sliding plate 18 close to the pressure relief valve 13 drops sharply, causing the first sliding plate 18 to return to its initial position, and the second sliding plate 19 to return to its initial position as well. At the same time, with the assistance of the spring 12, the sliding sleeve 9 can also return to its initial position, thus completely disconnecting the first pipe section 4 and the second pipe section 5.

[0027] In a more detailed technical solution, a guide post 21 located inside the first pipe section 4 is fixedly connected to the partition plate 6. The first sliding disc 18 is slidably connected to the guide post 21. The guide post 21 enables the first sliding disc 18 to run more smoothly. Furthermore, a square hole 22 is recessed on the side of the second sliding disc 19 opposite to the sliding post 17, and the sliding post 17 is threadedly connected to the second sliding disc 19. At the end of the second pipe section 5, a tool with a square head can be inserted into the square hole 22 and then rotated to remove the second sliding disc 19. After removing the second sliding disc 19, the first sliding disc 18 can be emptied from the end of the first pipe section 4 near the body 1 (the first pipe section 4 between the pressure relief valve 13 and the first sliding disc 18). It can be detachable, so that the first sliding plate 18 can be easily removed; in particular, when the first sliding plate 18 abuts against the partition 6, the first pipe section 4 and the second pipe section 5 are connected, and when the second sliding plate 19 abuts against the partition 6, the first pipe section 4 and the second pipe section 5 are disconnected. At this time, oil can only enter the through hole 20. After a long period of operation, the oil may enter the second pipe section 5 through the sliding hole, but it will be further blocked by the first sliding plate 18, so that it can continue to operate normally for a period of time without oil leakage. Furthermore, the oil may also enter the end where the mechanical valve 11 is set after passing through the first sliding plate 18, but the amount of oil is very small, and the probability of causing oil leakage will be greatly reduced. Therefore, this device can maintain normal operation without oil leakage for a longer period of time.

[0028] like Figure 1 , 2As shown, in the detailed technical solution, an installation ring 23 is also fixedly connected to the first pipe segment 4. One end of the outer pipe 10 is threaded to the installation ring 23 and the other end is threaded to the second pipe segment 5. This makes it easy to disassemble the outer pipe 10. Furthermore, the outer pipe 10, the installation ring 23, and the first pipe segment 4 can be connected by a screw 24. At the same time, the outer pipe 10 and the second pipe segment 5 are also connected by a screw 24, making the connection of the outer pipe 10 more stable.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A gas replenishment device, characterized in that, The device includes a main body, which has an inlet pipe connected to a gas source and an outlet pipe for discharging gas. The outlet pipe includes a first pipe section and a second pipe section, as well as a partition separating the two. The first pipe section is connected to the main body and has a first connecting hole. The second pipe section has a second connecting hole. A sliding sleeve is slidably disposed outside the outlet pipe, intermittently covering the second connecting hole. An outer pipe is also fixedly fitted onto the outlet pipe, and the outer wall of the sliding sleeve is slidably connected to the inner wall of the outer pipe. When the sliding sleeve is separated from the second connecting hole, the first connecting hole, the outer pipe, and the second connecting hole form a passage. A mechanical valve is also installed on the first pipe section between the first connecting hole and the main body. A sliding hole is provided on the partition, and a sliding column is inserted through the sliding hole. One end of the sliding column is fixedly connected to a first sliding disc slidably disposed in the first pipe section, and the other end is detachably connected to a second sliding disc slidably disposed in the second pipe section. The second sliding disc also has through holes penetrating both sides of it. The first sliding disc and the second sliding disc slide with the sliding column and can simultaneously intermittently cover the corresponding first connecting hole and second connecting hole.

2. The gas replenishment device as described in claim 1, characterized in that, The partition plate is also fixedly connected to a guide post located inside the first pipe section, and the first sliding disk is slidably connected to the guide post.

3. The gas replenishment device as described in claim 1, characterized in that, The second sliding disk has a square hole recessed on the side opposite to the sliding post, and the sliding post is threadedly connected to the second sliding disk.

4. The gas replenishment device as described in claim 1, characterized in that, The outer tube is also provided with a spring that is sleeved on the outside of the second tube section, and the spring and the first connecting hole are located on opposite sides of the sliding sleeve.

5. The gas replenishment device as described in claim 1, characterized in that, The inner wall of the outer tube is also recessed with a guide groove, and the sliding sleeve is fixedly connected with a sliding block that is slidably connected to the guide groove. Both the guide groove and the sliding block are opposite to the first connecting hole.

6. The gas replenishment device as described in claim 5, characterized in that, The guide groove is longer than the sliding block, and the passage is formed when the sliding block abuts against the end of the guide groove away from the first connecting hole.

7. The gas replenishment device as described in claim 1, characterized in that, The first pipe section is also equipped with a pressure relief valve located between the mechanical valve and the outer pipe.

8. The air replenishment device as described in any one of claims 1-7, characterized in that, A retaining ring is also fixedly connected to the inner wall of the outer tube. The retaining ring is separate from the outlet tube and is located between the first connecting hole and the second connecting hole.

9. The gas replenishment device as described in claim 1, characterized in that, An installation ring is also fixedly connected to the first pipe section. One end of the outer pipe is threadedly connected to the installation ring, and the other end is threadedly connected to the second pipe section.

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