High-capacity automotive liquefied natural gas bottle pressurizing mechanism

Abstract

The utility model relates to the technical field of vehicle liquefied natural gas bottle pressurization, and discloses a large-capacity vehicle liquefied natural gas bottle pressurization mechanism which comprises a bottle body, a connecting plate is fixedly connected to the interior of the bottle body, a hydraulic cylinder is fixedly connected to the interior of the connecting plate, and the output end of the hydraulic cylinder is fixedly connected with a connecting base. The outer wall of the connecting base is rotationally connected with a first rotating plate, the outer wall of the first rotating plate is rotationally connected with a second rotating plate, the interior of the second rotating plate is rotationally connected with a fixing shaft, the upper surface of the fixing shaft is fixedly connected to the lower surface of the connecting plate, and a supporting assembly is arranged on the outer wall of the bottle body and used for fixing. According to the gas pressurizing device, the air cylinder is started to drive the connecting base to slide, the connecting base drives the first rotating plate to rotate, the first rotating plate drives the second rotating plate to rotate through the shaft, and therefore the second rotating plate drives the third rotating plate to rotate through the shaft, the connecting base slides to drive the push piece to slide through the push rod to pressurize gas, and the effect that the gas is compressed to the needed pressure range is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle liquefied natural gas bottle pressurization, in particular to a large-capacity vehicle liquefied natural gas bottle pressurization mechanism. Background Art

[0002] A hydraulic natural gas bottle is a container specifically used for storing and transporting liquefied natural gas (LNG) or high-pressure gaseous natural gas. The pressurization of a large-capacity vehicle liquefied natural gas bottle refers to the process of converting low-pressure liquefied natural gas stored in a liquefied natural gas (LNG) bottle into high-pressure gaseous natural gas suitable for use in a vehicle engine through a pressurization device. In order to meet the demand for natural gas supply during the operation of a vehicle and ensure that the fuel system can work stably, safely, and efficiently, a large-capacity vehicle liquefied natural gas bottle pressurization mechanism will be used.

[0003] A large-capacity vehicle liquefied natural gas bottle pressurization mechanism is a device used when pressurizing gas. In the prior art, it is difficult for the pressure of liquefied natural gas to reach the required value during pressurization, which affects the stability of vehicle use. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a large-capacity vehicle liquefied natural gas bottle pressurization mechanism, aiming to improve the problem that it is difficult to obtain the required pressure when pressurizing gas.

[0005] To achieve the above object, the utility model provides the following technical solution: A large-capacity vehicle liquefied natural gas bottle pressurization mechanism includes a bottle body. A connecting plate is fixedly connected inside the bottle body. A hydraulic cylinder is fixedly connected inside the connecting plate. The output end of the hydraulic cylinder is fixedly connected with a connecting seat. A first rotating plate is rotatably connected to the outer wall of the connecting seat. A second rotating plate is rotatably connected to the outer wall of the first rotating plate. A fixed shaft is rotatably connected inside the second rotating plate. The upper surface of the fixed shaft is fixedly connected to the lower surface of the connecting plate. A third rotating plate is rotatably connected to the outer wall of the second rotating plate. A base is rotatably connected to the outer wall of the third rotating plate. A pressurization box is fixedly connected to the lower surface of the base. The outer wall of the pressurization box is fixedly connected inside the bottle body. A push rod is slidably connected inside the pressurization box. The upper surface of the push rod is fixedly connected to the lower surface of the connecting seat. The lower surface of the push rod is fixedly connected with a push piece. The outer wall of the push piece is slidably connected inside the pressurization box. A support assembly is arranged on the outer wall of the bottle body for fixation.

[0006] Preferably, the support assembly includes a fixing plate, the outer wall of the fixing plate is fixedly connected to the outer wall of the bottle body, and a fixing block is fixedly connected to the upper surface of the fixing plate.

[0007] Preferably, a cylinder is fixedly connected to the upper surface of the fixing block, and a sealing ring is fixedly connected to the output end of the cylinder.

[0008] Preferably, a sleeve is slidably connected to the outer wall of the sealing ring, and the lower surface of the sleeve is fixedly connected to the upper surface of the fixing plate.

[0009] Preferably, an air storage cylinder is fixedly connected to the outer wall of the sleeve, and the lower surface of the air storage cylinder is fixedly connected to the upper surface of the fixing plate.

[0010] Preferably, a first one-way valve is fixedly connected inside the air storage cylinder, a first connecting pipe is fixedly connected inside the first one-way valve, the outer wall of the first connecting pipe is fixedly connected inside the bottle body, and the outer wall of the first connecting pipe is fixedly connected inside the pressurizing tank.

[0011] Preferably, a second one-way valve is fixedly connected inside the air storage cylinder, and a second connecting pipe is fixedly connected inside the second one-way valve.

[0012] Preferably, a sealing pipe is fixedly connected inside the bottle body, and the outer wall of the sealing pipe is fixedly connected inside the pressurizing tank.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, starting the air cylinder drives the connecting seat to slide, the connecting seat drives the first rotating plate to rotate, the first rotating plate drives the second rotating plate to rotate through the shaft, so that the second rotating plate drives the third rotating plate to rotate through the shaft, and the pushing piece is driven to slide through the push rod by the sliding of the connecting seat to pressurize the gas, achieving the effect of compressing the gas to the required pressure range and ensuring the stable supply of the gas.

[0015] 2. In the utility model, starting the air cylinder drives the sealing ring to slide in the sleeve, the gas inside the pressurizing tank is extracted into the air storage cylinder through the first connecting pipe and the first one-way valve, and then starting the air cylinder again transmits the gas inside the air storage cylinder to the second connecting pipe through the second one-way valve, and then is transported to the engine for use, achieving the effect of preventing the gas from flowing back and affecting the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of a supercharger mechanism for a large-capacity vehicle liquefied natural gas bottle proposed by the utility model;

[0017] Figure 2 is a cross-sectional view of the internal structure of the bottle body of a supercharger mechanism for a large-capacity vehicle liquefied natural gas bottle proposed by the utility model;

[0018] Figure 3 is a partial structural schematic diagram of the pushing piece of a supercharger mechanism for a large-capacity vehicle liquefied natural gas bottle proposed by the utility model,

[0019] Figure 4This is a cross-sectional view of the internal structure of the gas placement cylinder of the large-capacity vehicle liquefied natural gas bottle pressurization mechanism proposed by the present utility model.

[0020] Legend:

[0021] 1. Bottle body; 2. Connecting plate; 3. Hydraulic cylinder; 4. Connecting seat; 5. First rotating plate; 6. Second rotating plate; 7. Fixed shaft; 8. Third rotating plate; 9. Base; 10. Pressurization box; 11. Push rod; 12. Pushing piece; 13. Fixed plate; 14. Fixed block; 15. Cylinder; 16. Sealing ring; 17. Sleeve; 18. Gas placement cylinder; 19. First one-way valve; 20. First connecting pipe; 21. Second one-way valve; 22. Second connecting pipe; 23. Sealing pipe. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the specification drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Refer to Figure 1 - Figure 3 , an embodiment provided by the present utility model: a large-capacity vehicle liquefied natural gas bottle pressurization mechanism, including a bottle body 1, a connecting plate 2 is fixedly connected inside the bottle body 1, a hydraulic cylinder 3 is fixedly connected inside the connecting plate 2, an output end of the hydraulic cylinder 3 is fixedly connected with a connecting seat 4, an outer wall of the connecting seat 4 is rotatably connected with a first rotating plate 5, an outer wall of the first rotating plate 5 is rotatably connected with a second rotating plate 6, a fixed shaft 7 is rotatably connected inside the second rotating plate 6, an upper surface of the fixed shaft 7 is fixedly connected to a lower surface of the connecting plate 2, an outer wall of the second rotating plate 6 is rotatably connected with a third rotating plate 8, an outer wall of the third rotating plate 8 is rotatably connected with a base 9, a lower surface of the base 9 is fixedly connected with a pressurization box 10, an outer wall of the pressurization box 10 is fixedly connected inside the bottle body 1, a push rod 11 is slidably connected inside the pressurization box 10, an upper surface of the push rod 11 is fixedly connected to a lower surface of the connecting seat 4, a lower surface of the push rod 11 is fixedly connected with a pushing piece 12, an outer wall of the pushing piece 12 is slidably connected inside the pressurization box 10, a support assembly is arranged on an outer wall of the bottle body 1, and the support assembly is used for fixing.

[0024] Specifically, the connecting plate 2 is fixed inside the bottle body 1 to fix the hydraulic cylinder 3. The connecting seat 4 can be slid by the hydraulic cylinder 3, and then the first rotating plate 5 can rotate through the shaft between the connecting seat 4, and then the second rotating plate 6 can rotate through the action of the shaft. The fixed shaft 7 supports the second rotating plate 6, and then the third rotating plate 8 rotates. The base 9 supports the third rotating plate 8 through the shaft, and then the push rod 11 slides through the sliding of the connecting seat 4, so that the push piece 12 slides to pressurize the gas, compress the gas and increase its pressure.

[0025] Refer to Figure 2 and Figure 4 , the support assembly includes a fixing plate 13. The outer wall of the fixing plate 13 is fixedly connected to the outer wall of the bottle body 1. A fixing block 14 is fixedly connected to the upper surface of the fixing plate 13. A cylinder 15 is fixedly connected to the upper surface of the fixing block 14. The output end of the cylinder 15 is fixedly connected to a sealing ring 16. The outer wall of the sealing ring 16 is slidably connected to a sleeve 17. The lower surface of the sleeve 17 is fixedly connected to the upper surface of the fixing plate 13. An air storage cylinder 18 is fixedly connected to the outer wall of the sleeve 17. The lower surface of the air storage cylinder 18 is fixedly connected to the upper surface of the fixing plate 13. A first one-way valve 19 is fixedly connected inside the air storage cylinder 18. A first connecting pipe 20 is fixedly connected inside the first one-way valve 19. The outer wall of the first connecting pipe 20 is fixedly connected inside the bottle body 1. The outer wall of the first connecting pipe 20 is fixedly connected inside the pressurizing box 10. A second one-way valve 21 is fixedly connected inside the air storage cylinder 18. A second connecting pipe 22 is fixedly connected inside the second one-way valve 21.

[0026] Specifically, the fixing block 14 is fixed on the upper surface of the fixing plate 13 to fix the cylinder 15. The sealing ring 16 can slide inside the sleeve 17 through the cylinder 15, and then the gas enters the inside of the air storage cylinder 18 through the first connecting pipe 20 and the first one-way valve 19 for storage. The reverse sliding of the sealing ring 16 can make the gas be transported through the second one-way valve 21 and the second connecting pipe 22. The first one-way valve 19 and the second one-way valve 21 can play a role in unidirectionally extracting the gas to prevent the gas from flowing back and affecting the stability of the equipment.

[0027] Refer to Figure 1 , a sealing pipe 23 is fixedly connected inside the bottle body 1. The outer wall of the sealing pipe 23 is fixedly connected inside the pressurizing box 10.

[0028] Specifically, the vaporized gas can be transported to the inside of the pressurizing box 10 through the sealing pipe 23 for pressurization, and the sealing pipe 23 plays a role in unidirectional transportation.

[0029] Working principle: When the supercharging mechanism needs to be used, the vaporized gas is transported to the inside of the supercharging tank 10 through the sealing pipe 23. The hydraulic cylinder 3 is started. The connecting plate 2 has a fixing effect on the hydraulic cylinder 3. The hydraulic cylinder 3 drives the connecting seat 4 to slide. When the connecting seat 4 slides, it drives the first rotating plate 5 to rotate through the shaft between the first rotating plate 5. The first rotating plate 5 drives the second rotating plate 6 to rotate through the shaft between the first rotating plate 5 and the second rotating plate 6. The second rotating plate 6 rotates through the fixed shaft 7 on the lower surface of the connecting plate 2. When the second rotating plate 6 rotates, it drives the third rotating plate 8 to rotate through the shaft between the second rotating plate 6 and the third rotating plate 8 through the shaft between the third rotating plate 8 and the base 9. Thus, the sliding of the connecting seat 4 drives the push rod 11 to slide inside the supercharging tank 10. The push rod 11 drives the push piece 12 to slide on the inner wall of the supercharging tank 10, thereby pressurizing the gas inside the supercharging tank 10, achieving the effect of ensuring that the gas pressure is maintained within a relatively stable range and avoiding affecting the stability of gas supply due to too low pressure. When the pressurized gas needs to be transported into the engine, the cylinder 15 is started. The fixing block 14 supports the cylinder 15. The cylinder 15 drives the sealing ring 16 to slide inside the sleeve 17. When the sealing ring 16 slides, it sucks the gas in the supercharging tank 10 through the first connecting pipe 20 into the first one-way valve 19 and stores it inside the gas storage cylinder 18. The cylinder 15 is started again, and the gas in the gas storage cylinder 18 can be transported into the engine through the second one-way valve 21 and the second connecting pipe 22 through the sliding of the sealing ring 16 for use, achieving the effects of preventing gas reverse flow, protecting the equipment, and maintaining the stability of gas flow. This mechanism can not only achieve the effect of compressing the gas to the required pressure range but also achieve the effect of preventing gas backflow during the gas transmission process.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pressurizing mechanism for a large-capacity liquefied natural gas bottle for a vehicle, comprising a bottle body (1), characterized in that: The bottle body (1) is fixedly connected to a connecting plate (2) inside, the connecting plate (2) is fixedly connected to a hydraulic cylinder (3) inside, the output end of the hydraulic cylinder (3) is fixedly connected to a connecting seat (4), the outer wall of the connecting seat (4) is rotatably connected to a rotating plate 1 (5), the outer wall of the rotating plate 1 (5) is rotatably connected to a rotating plate 2 (6), the interior of the rotating plate 2 (6) is rotatably connected to a fixed shaft (7), the upper surface of the fixed shaft (7) is fixedly connected to the lower surface of the connecting plate (2), the outer wall of the rotating plate 2 (6) is rotatably connected to a rotating plate 3 (8), the rotating plate 3 (8) is rotatably connected to the outer wall of the rotating plate 2 (6). The outer wall is rotatably connected to a base (9), the lower surface of the base (9) is fixedly connected to a booster box (10), the outer wall of the booster box (10) is fixedly connected to the inside of the bottle body (1), the inside of the booster box (10) is slidably connected to a push rod (11), the upper surface of the push rod (11) is fixedly connected to the lower surface of the connecting seat (4), the lower surface of the push rod (11) is fixedly connected to a push piece (12), the outer wall of the push piece (12) is slidably connected to the inside of the booster box (10), and the outer wall of the bottle body (1) is provided with a support assembly, which is used for fixing.

2. The large-capacity liquefied natural gas bottle pressurizing mechanism for vehicles according to claim 1 is characterized in that: The support assembly comprises a fixing plate (13), the outer wall of the fixing plate (13) being fixedly connected to the outer wall of the bottle body (1), and the upper surface of the fixing plate (13) being fixedly connected to a fixing block (14).

3. The large-capacity liquefied natural gas bottle pressurizing mechanism for vehicles according to claim 2 is characterized in that: The upper surface of the fixed block (14) is fixedly connected to a cylinder (15), and the output end of the cylinder (15) is fixedly connected to a sealing ring (16).

4. The large-capacity liquefied natural gas bottle pressurizing mechanism for vehicles according to claim 3 is characterized in that: The outer wall of the sealing ring (16) is slidably connected to a sleeve (17), and the lower surface of the sleeve (17) is fixedly connected to the upper surface of the fixing plate (13).

5. The large-capacity liquefied natural gas bottle pressurizing mechanism for vehicles according to claim 4 is characterized in that: An air cylinder (18) is fixedly connected to the outer wall of the sleeve (17), and the lower surface of the air cylinder (18) is fixedly connected to the upper surface of the fixing plate (13).

6. The large-capacity liquefied natural gas bottle pressurizing mechanism for vehicles according to claim 5 is characterized in that: A first one-way valve (19) is fixedly connected to the interior of the air cylinder (18), a first connecting pipe (20) is fixedly connected to the interior of the first one-way valve (19), an outer wall of the first connecting pipe (20) is fixedly connected to the interior of the bottle body (1), and an outer wall of the first connecting pipe (20) is fixedly connected to the interior of the booster box (10).

7. The large-capacity liquefied natural gas bottle pressurizing mechanism for vehicles according to claim 5, characterized in that: A second one-way valve (21) is fixedly connected inside the air cylinder (18), and a second connecting pipe (22) is fixedly connected inside the second one-way valve (21).

8. The large-capacity liquefied natural gas bottle pressurizing mechanism for vehicles according to claim 1 is characterized in that: A sealing tube (23) is fixedly connected to the interior of the bottle body (1), and an outer wall of the sealing tube (23) is fixedly connected to the interior of the booster box (10).

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