Mechanical pneumatic shield-shaped gate water level stabilizer

Abstract

The utility model relates to the technical field of shield-shaped gates, in particular to a mechanical pneumatic shield-shaped gate water level stabilizer which comprises an adjusting bin, an air bag is fixedly installed in the adjusting bin, an air supply pipeline is fixedly installed at the end of the adjusting bin, the air bag is communicated with the air supply pipeline, and the air supply pipeline is communicated with an air bag of a shield-shaped valve. The water level can be stably adjusted. Lubricating oil in the oil storage tank is extruded, enters the lubricating groove through the hose and the communicating hole, is matched with sliding of the sliding block, and is smeared on the contact face of the sliding block and the sleeve, friction loss is reduced, the service life of the sliding block and the sleeve is prolonged, and sliding of the sliding block and the sleeve is smoother through the lubricating oil; therefore, the water level control sensitivity is improved, and the water level control is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of shield-shaped gates, in particular to a mechanical pneumatic shield-shaped gate water level stabilizer. Background Art

[0002] As a new type of water conservancy engineering equipment, the pneumatic shield gate can be automatically opened and closed by controlling the air pressure. The operation is more convenient than the traditional manual method. Even in the case of power outages caused by floods, the water level can be safely discharged by discharging the air in the air bag, ensuring the stable operation of the water conservancy project. At the same time, it also has the advantages of good sealing performance, strong structural design and seismic resistance, good water flow adaptability, convenient foundation and construction, environmental protection and safety, long service life, and wide application range. It has become an important sealing equipment in water conservancy projects. However, in actual use, it is found that the volume of gas inside the air bag will fluctuate due to the influence of the external environment, such as temperature, thermal expansion and contraction of gas, which makes the height of the shield valve change. For this reason, some patents began to add water level stabilizers.

[0003] For example, the patent with authorization announcement number CN207987875U discloses a mechanical pneumatic shield gate water level stabilizer. When the working airbag of the pneumatic shield gate expands due to over-inflation or high temperature, the airbag will also expand accordingly through the gas transmission of the air supply pipeline... The gas in the air supply pipeline is discharged through the air outlet pipe, the air outlet hole, and the outlet in turn, so that the digital height of the shield valve is basically consistent, but there are still certain shortcomings.

[0004] Affected by temperature, the volume of the working airbag of the shield-shaped valve changes, causing the valve core to slide in the valve body, and the sliding frequency is relatively frequent, especially in areas with large temperature differences between day and night. Wear will occur during the sliding process, and the above invention is not equipped with a lubricating oil application device. As the use time increases, the contact surface between the valve core and the valve body becomes drier and the wear becomes more serious, thereby reducing the service life of the valve core and the valve body, and the sealing performance of the two is reduced, which will also affect their working effect. Utility Model Content

[0005] In response to the above problems, the present application provides a solution to the problem that the above invention is not equipped with a lubricating oil application device, and as the use time increases, the contact surface between the valve core and the valve body becomes drier and the wear becomes more serious, thereby reducing the service life of the valve core and the valve body, and the sealing performance of the two is reduced, which also affects their working effect.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A mechanical pneumatic shield-shaped gate water level stabilizer comprises an adjusting chamber, an air bag is fixedly installed inside the adjusting chamber, an air supply pipeline is fixedly installed at the end of the adjusting chamber, the air bag is connected to the air supply pipeline, and the air supply pipeline is connected to the air bag of the shield-shaped valve;

[0008] A push plate is fixedly installed on the outside of the air bag, and the push plate is slidably installed on the inside of the adjustment chamber. A linkage column is fixedly installed on the outside of the push plate, and a piston plate is fixedly installed on the end of the linkage column away from the push plate. An extrusion chamber is slidably installed on the outside of the piston plate. A liquid outlet check valve and a liquid inlet check valve are fixedly installed on the outside of the extrusion chamber, and an oil storage tank is fixedly installed on the top of the liquid inlet check valve.

[0009] A sleeve is fixedly installed at the end of the regulating bin, a slider is slidably installed inside the sleeve, a linkage rod is fixedly installed between the slider and the push plate, a plurality of lubrication grooves are opened on the outside of the slider, a connecting hole is opened on the inside of the lubrication groove, and the connecting hole is connected to the liquid outlet one-way valve through a hose.

[0010] Furthermore, the extrusion chamber is fixedly installed on the inner side of the regulating chamber, and the oil storage tank is fixedly installed on the inner side of the regulating chamber.

[0011] Furthermore, a pressure relief hole is provided at the top of the air supply pipe, a first through hole is provided at the top of the sleeve, a second through hole matching the first through hole is provided at the bottom of the sleeve, and a pressure relief pipe is installed between the pressure relief hole and the first through hole.

[0012] Furthermore, an inflation hole is provided at the top of the air supply pipe, a third through hole is provided at the top of the sleeve, a fourth through hole matching the third through hole is provided at the bottom of the sleeve, the fourth through hole is connected to an external high-pressure gas storage tank, and an inflation pipe is installed between the third through hole and the inflation hole.

[0013] Furthermore, a fifth through hole is formed through the middle of the sliding block, and the fifth through hole matches with the third through hole and the fourth through hole.

[0014] Furthermore, a sixth through hole is formed through the middle of the slider, and the sixth through hole matches with the first through hole and the second through hole.

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

[0016] The utility model describes a mechanical pneumatic shield-shaped gate water level stabilizer, in which the lubricating oil inside the oil storage tank is squeezed and enters the lubrication groove through the hose and the connecting hole, and the lubricating oil is applied to the contact surface of the slider and the sleeve in coordination with the sliding of the slider, thereby reducing friction loss and thus extending the service life of the two. The lubricating oil also makes the sliding of the slider and the sleeve smoother and more easily driven by the change in the volume of the airbag of the shield-shaped valve, thereby improving the sensitivity of the water level control and making the water level control more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 A schematic diagram of the overall structure of a mechanical pneumatic shield gate water level stabilizer provided by the utility model;

[0019] Figure 2 A schematic diagram of the internal structure of a mechanical pneumatic shield gate water level stabilizer provided by the utility model;

[0020] Figure 3 A schematic diagram of the casing structure of a mechanical pneumatic shield gate water level stabilizer provided by the utility model;

[0021] Figure 4 A schematic diagram of the structure of a slider of a mechanical pneumatic shield gate water level stabilizer provided by the utility model;

[0022] Figure 5 for Figure 4 A magnified image of point A;

[0023] Figure 6 A schematic diagram of the air supply pipeline structure of a mechanical pneumatic shield gate water level stabilizer provided by the utility model;

[0024] Figure 7 A schematic diagram of the internal structure of an extrusion chamber of a mechanical pneumatic shield gate water level stabilizer provided by the utility model.

[0025] In the figure: 1. air supply pipeline; 2. regulating chamber; 3. sleeve; 4. pressure relief pipe; 5. inflation pipe; 6. inflation hole; 7. pressure relief hole; 8. first through hole; 9. second through hole; 10. third through hole; 11. fourth through hole; 12. air bag; 13. push plate; 14. linkage rod; 15. slider; 16. fifth through hole; 17. sixth through hole; 18. lubrication groove; 19. connecting hole; 20. oil storage tank; 21. extrusion chamber; 22. liquid outlet one-way valve; 23. liquid inlet one-way valve; 24. piston plate; 25. linkage column. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0027] As shown in Fig. 1-7, the embodiment of the utility model provides a mechanical pneumatic shield gate water level stabilizer, comprising an adjusting chamber 2, an air bag 12 is fixedly installed inside the adjusting chamber 2, an air supply pipeline 1 is fixedly installed at the end of the adjusting chamber 2, the air bag 12 is connected to the air supply pipeline 1, and the air supply pipeline 1 is connected to the air bag of the shield valve, so that the volume of the air bag 12 and the air bag of the shield valve changes synchronously;

[0028] A push plate 13 is fixedly installed on the outside of the air bag 12, and the push plate 13 is slidably installed on the inside of the regulating chamber 2. A linkage column 25 is fixedly installed on the outside of the push plate 13, and a piston plate 24 is fixedly installed on the end of the linkage column 25 away from the push plate 13. An extrusion chamber 21 is slidably installed on the outside of the piston plate 24. The piston plate 24 is used to change the internal pressure of the extrusion chamber 21. A liquid outlet check valve 22 and a liquid inlet check valve 23 are fixedly installed on the outside of the extrusion chamber 21. When the internal pressure of the extrusion chamber 21 increases, the liquid outlet check valve 22 opens and the liquid inlet check valve 23 closes. When the internal pressure of the extrusion chamber 21 decreases, the liquid outlet check valve 22 closes and the liquid inlet check valve 23 opens. The top of the liquid inlet check valve 23 is connected and fixedly installed with an oil storage tank 20;

[0029] A sleeve 3 is fixedly installed at the end of the regulating chamber 2, a slider 15 is slidably installed inside the sleeve 3, a linkage rod 14 is fixedly installed between the slider 15 and the push plate 13, a plurality of lubrication grooves 18 are provided on the outside of the slider 15 for the seepage of lubricating liquid, a connecting hole 19 is provided on the inside of the lubrication groove 18, and the connecting hole 19 is connected to the liquid outlet one-way valve 22 through a hose.

[0030] In this embodiment, Figure 2 As shown, during the process of stable water level regulation, the volume of the air bag 12 changes, driving the push plate 13 to move and the linkage column 25 to move synchronously. When the linkage column 25 moves to the right, the linkage column 25 drives the piston plate 24 to move to the right, the internal pressure of the extrusion chamber 21 decreases, the liquid outlet check valve 22 is closed, and the liquid inlet check valve 23 is opened, and the lubricating oil in the oil storage tank 20 enters the extrusion chamber 21;

[0031] When the linkage column 25 moves to the left, the linkage column 25 drives the piston plate 24 to move to the left, the internal pressure of the extrusion chamber 21 increases, the liquid outlet one-way valve 22 opens, and the liquid inlet one-way valve 23 closes. The lubricating oil in the oil storage tank 20 enters the lubrication groove 18 through the hose and the connecting hole 19, and cooperates with the sliding of the slider 15 to apply the lubricating oil to the contact surface between the slider 15 and the sleeve 3, thereby reducing friction loss and extending the service life of the two. The lubricating oil will also make the sliding of the slider 15 and the sleeve 3 smoother, and more susceptible to the movement driven by the change in the volume of the airbag of the shield valve, that is, the sensitivity of the water level control is improved, making the water level control more accurate.

[0032] Specifically, the squeezing chamber 21 is fixedly installed inside the regulating chamber 2 , and the oil storage tank 20 is fixedly installed inside the regulating chamber 2 .

[0033] Specifically, a pressure relief hole 7 is provided at the top of the air supply pipe 1, a first through hole 8 is provided at the top of the sleeve 3, a second through hole 9 matching with the first through hole 8 is provided at the bottom of the sleeve 3, the axes of the first through hole 8 and the second through hole 9 are colinear, a pressure relief pipe 4 is installed between the pressure relief hole 7 and the first through hole 8, a sixth through hole 17 is provided through the middle of the slider 15, and the sixth through hole 17 matches with the first through hole 8 and the second through hole 9.

[0034] In this embodiment, Figure 2 As shown, when the airbag of the shield-shaped valve expands due to temperature rise or other reasons, the air bag 12 expands synchronously through the gas transmission of the air supply pipe 1, driving the push plate 13 and the linkage rod 14 to move to the left, and the linkage rod 14 drives the slider 15 and the sixth through hole 17 to move to the left. The sixth through hole 17 is connected with the first through hole 8 and the second through hole 9. The gas in the airbag of the shield-shaped valve is discharged from the air supply pipe 1, the pressure relief pipe 4, and the second through hole 9, so that the airbag 12 and the airbag of the shield-shaped valve are reduced, the volume is restored, the water level control is stable, and the reduction of the airbag 12 drives the various components to reset.

[0035] Specifically, an inflation hole 6 is provided at the top of the air supply pipe 1, a third through hole 10 is provided at the top of the sleeve 3, and a fourth through hole 11 matched with the third through hole 10 is provided at the bottom of the sleeve 3. The axes of the third through hole 10 and the fourth through hole 11 are colinear, and the fourth through hole 11 is connected to an external high-pressure gas storage tank. The pressure of the high-pressure gas storage tank is greater than the pressure of the airbag of the shield valve. An inflation tube 5 is installed between the third through hole 10 and the inflation hole 6, and a fifth through hole 16 is provided through the middle of the slider 15, and the fifth through hole 16 matches the third through hole 10 and the fourth through hole 11.

[0036] In this embodiment, Figure 2 As shown, Figure 2 As shown, when the airbag of the shield-shaped valve shrinks due to lowering of temperature or other reasons, the airbag 12 shrinks synchronously through the gas transmission of the air supply pipe 1, driving the push plate 13 and the linkage rod 14 to move to the right, and the linkage rod 14 drives the slider 15 and the fifth through hole 16 to move to the right. The fifth through hole 16 is connected with the third through hole 10 and the fourth through hole 11. The gas of the high-pressure gas tank enters the airbag 12 and the airbag of the shield-shaped valve from the inflation pipe 5 and the air supply pipe 1, so that the airbag 12 and the airbag of the shield-shaped valve expand, the volume is restored, the water level control is stable, and the expansion of the airbag 12 drives the various components to reset.

[0037] How it works:

[0038] like Figure 2As shown, when the airbag of the shield-shaped valve shrinks due to lowering of temperature or other reasons, the airbag 12 shrinks synchronously through the gas transmission of the air supply pipe 1, driving the push plate 13 and the linkage rod 14 to move to the right, and the linkage rod 14 drives the slider 15 and the fifth through hole 16 to move to the right. The fifth through hole 16 is connected with the third through hole 10 and the fourth through hole 11. The gas of the high-pressure gas tank enters the airbag 12 and the airbag of the shield-shaped valve from the inflation pipe 5 and the air supply pipe 1, so that the airbag 12 and the airbag of the shield-shaped valve expand, the volume is restored, the water level control is stable, and the expansion of the airbag 12 drives the various components to reset.

[0039] When the airbag of the shield-shaped valve expands due to temperature rise or other reasons, the air bag 12 expands synchronously through the gas transmission of the air supply pipe 1, driving the push plate 13 and the linkage rod 14 to move to the left, and the linkage rod 14 drives the slider 15 and the sixth through hole 17 to move to the left. The sixth through hole 17 is connected with the first through hole 8 and the second through hole 9. The gas in the airbag of the shield-shaped valve is discharged from the air supply pipe 1, the pressure relief pipe 4, and the second through hole 9, so that the airbag 12 and the airbag of the shield-shaped valve are reduced, the volume is restored, the water level control is stable, and the reduction of the airbag 12 drives the various components to reset.

[0040] During the adjustment process, the push plate 13 moves and drives the linkage column 25 to move synchronously. When the push plate 13 drives the linkage column 25 to move rightward, the linkage column 25 drives the piston plate 24 to move rightward, the internal pressure of the extrusion chamber 21 decreases, the liquid outlet check valve 22 is closed, and the liquid inlet check valve 23 is opened, and the lubricating oil in the oil storage tank 20 enters the extrusion chamber 21;

[0041] When the push plate 13 drives the linkage column 25 to move leftward, the linkage column 25 drives the piston plate 24 to move leftward, the internal pressure of the extrusion chamber 21 increases, the liquid outlet one-way valve 22 opens, and the liquid inlet one-way valve 23 closes. The lubricating oil in the oil storage tank 20 enters the lubrication groove 18 through the hose and the connecting hole 19, and cooperates with the sliding of the slider 15 to apply the lubricating oil to the contact surface between the slider 15 and the sleeve 3, thereby reducing friction loss and extending the service life of the two. The lubricating oil will also make the sliding of the slider 15 and the sleeve 3 smoother, and more susceptible to the movement driven by the change of the airbag volume of the shield valve, that is, the sensitivity of the water level control is improved, and the water level control is made more accurate.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mechanical pneumatic shield gate water level stabilizer, comprising a regulating chamber (2), characterized in that: An air bag (12) is fixedly installed inside the regulating chamber (2), an air supply pipeline (1) is fixedly installed at the end of the regulating chamber (2), the air bag (12) is connected to the air supply pipeline (1), and the air supply pipeline (1) is connected to the air bag of the shield valve; A push plate (13) is fixedly mounted on the outside of the air bag (12), the push plate (13) is slidably mounted on the inside of the regulating chamber (2), a linkage column (25) is fixedly mounted on the outside of the push plate (13), a piston plate (24) is fixedly mounted on the end of the linkage column (25) away from the push plate (13), an extrusion chamber (21) is slidably mounted on the outside of the piston plate (24), a liquid outlet check valve (22) and a liquid inlet check valve (23) are fixedly mounted on the outside of the extrusion chamber (21), and an oil storage tank (20) is fixedly mounted on the top of the liquid inlet check valve (23); A sleeve (3) is fixedly mounted at the end of the regulating chamber (2), a slider (15) is slidably mounted inside the sleeve (3), a linkage rod (14) is fixedly mounted between the slider (15) and the push plate (13), a plurality of lubrication grooves (18) are formed on the outside of the slider (15), a communication hole (19) is formed on the inside of the lubrication groove (18), and the communication hole (19) is connected to the liquid outlet one-way valve (22) via a hose.

2. A mechanical pneumatic shield gate water level stabilizer according to claim 1, characterized in that: The squeezing chamber (21) is fixedly mounted on the inner side of the regulating chamber (2), and the oil storage tank (20) is fixedly mounted on the inner side of the regulating chamber (2).

3. A mechanical pneumatic shield gate water level stabilizer according to claim 1, characterized in that: The air supply pipe (1) has a pressure relief hole (7) at the top, the sleeve (3) has a first through hole (8) at the top, the sleeve (3) has a second through hole (9) matching the first through hole (8) at the bottom, and a pressure relief pipe (4) is installed between the pressure relief hole (7) and the first through hole (8).

4. A mechanical pneumatic shield gate water level stabilizer according to claim 1, characterized in that: The top of the gas supply pipe (1) is provided with a charging hole (6), the top of the sleeve (3) is provided with a third through hole (10), the bottom of the sleeve (3) is provided with a fourth through hole (11) matching with the third through hole (10), the fourth through hole (11) is connected to an external high-pressure gas storage tank, and an charging pipe (5) is installed between the third through hole (10) and the charging hole (6).

5. A mechanical pneumatic shield gate water level stabilizer according to claim 4, characterized in that: A fifth through hole (16) is provided through the middle of the sliding block (15), and the fifth through hole (16) cooperates with the third through hole (10) and the fourth through hole (11).

6. A mechanical pneumatic shield gate water level stabilizer according to claim 3, characterized in that: A sixth through hole (17) is formed through the middle of the sliding block (15), and the sixth through hole (17) cooperates with the first through hole (8) and the second through hole (9).

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