Liquid-driven gas compression cylinder sealing structure and using method

Abstract

The invention belongs to the technical field of compression cylinders, and discloses a hydraulic drive gas compression cylinder sealing structure and a using method.The hydraulic drive gas compression cylinder sealing structure comprises a compression cylinder body, a connecting frame, a cylinder cover, a limiting mechanism and a positioning assembly, the connecting frame is fixedly connected to the outer wall of the compression cylinder body, the cylinder cover covers an opening of the compression cylinder body, and the limiting mechanism is arranged between the cylinder cover and the connecting frame; the positioning assembly is arranged between the connecting frame and the cylinder cover and used for positioning the cylinder body die casting. The limiting mechanism comprises an assembly cavity, a limiting groove, a moving plate and a driving mechanism, the assembly cavity is formed in the cylinder cover, the limiting groove is formed in the outer surface of the connecting frame, the moving plate is arranged in the assembly cavity and the limiting groove, and the driving mechanism is used for driving the moving plate to slide along the assembly cavity and the inner wall of the limiting groove. The hydraulic drive gas compression cylinder is convenient to operate, the cylinder cover can be rapidly separated from the compression cylinder body, the sealing gasket can be rapidly replaced, meanwhile, the sealing performance of the hydraulic drive gas compression cylinder is guaranteed, and the production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of compression cylinder technology, specifically relating to a sealing structure and usage method of a liquid-driven gas compression cylinder. Background Technology

[0002] A hydraulically driven gas compressor cylinder is a special type of compressor cylinder whose working principle differs from traditional pneumatic or electric compressor cylinders. It primarily utilizes liquid as the driving force, converting the liquid's pressure energy into mechanical energy through a hydraulic transmission mechanism. This mechanical energy drives a piston to reciprocate within the cylinder, thus compressing the gas. Hydraulically driven gas compressor cylinders offer unique advantages in specific applications, such as environments requiring high thrust, high speed control precision, or high explosion-proof requirements. The gasket in a hydraulically driven gas compressor cylinder is a crucial component ensuring the effective and efficient operation of the gas compression process. The primary purpose of this sealing gasket is to prevent gas leakage and liquid ingress into the compression area, thereby maintaining the continuity and stability of the compression process.

[0003] Currently, the gasket is located between the piston and the cylinder to ensure a tight fit between them, thereby preventing gas leakage from the compression area. However, after long-term use, the gasket will experience aging and wear. Furthermore, the cylinder design of traditional hydraulic gas compression cylinders may require multiple steps and tools to completely disassemble, which increases the difficulty of replacing the gasket. The gasket replacement process is also quite troublesome, which may lead to extended equipment downtime. This will affect the continuity and efficiency of the production line, resulting in reduced output. Summary of the Invention

[0004] The purpose of this invention is to provide a sealing structure and method for a liquid-driven gas compression cylinder, enabling quick removal and replacement of the sealing ring gasket, thereby improving production efficiency.

[0005] The technical solution adopted in this invention is a liquid-driven gas compression cylinder sealing structure, including a compression cylinder body, a connecting frame, a cylinder cover, a limiting mechanism, and a positioning component. The connecting frame is fixedly connected to the outer wall of the compression cylinder body, the cylinder cover is closed at the opening of the compression cylinder body, the limiting mechanism is disposed between the cylinder cover and the connecting frame, and the positioning component is disposed between the connecting frame and the cylinder cover for positioning the cylinder body die-casting part. The limiting mechanism includes a component cavity, a limiting groove, a moving plate, and a driving mechanism. The component cavity is opened inside the cylinder head, the limiting groove is opened on the outer surface of the connecting frame, the moving plate is disposed in the component cavity and the limiting groove, and the driving mechanism is used to drive the moving plate to slide along the inner wall of the component cavity and the limiting groove.

[0006] Preferably, the driving mechanism includes a first rotating shaft, a threaded portion, a blocking ring, a first bevel gear, a second rotating shaft, a second bevel gear, and a handle; the first rotating shaft is disposed inside the component cavity, the threaded portion is disposed at both ends of the first rotating shaft, the threads of the threaded portions at both ends are opposite in direction, the blocking ring is disposed at the connection between the smooth portion and the threaded portion of the first rotating shaft, one end of the moving plate is threadedly connected to the first rotating shaft, the first bevel gear is fixedly sleeved on the outer surface of the first rotating shaft, the outer surface of the second rotating shaft is rotatably connected to the inner wall of the component cavity, the second bevel gear is fixedly sleeved on the second rotating shaft, the second bevel gear meshes with the first bevel gear, and the handle is fixedly connected to the second rotating shaft.

[0007] Preferably, the limiting mechanism further includes a stop component, which includes a gear, a groove, a slide plate, a limiting block, and a spring; the gear is fixedly connected to the second rotating shaft, the groove is formed on the outer surface of the cylinder head, the slide plate is slidably connected to the inner wall of the groove, one end of the slide plate is fixedly connected to the spring, and the spring is disposed in the groove, the limiting block is fixedly connected to the slide plate, and the limiting block is engaged with the gear.

[0008] Preferably, one end of the limiting block is provided with a toothed groove, the meshing gear is a ratchet, and the toothed groove of the limiting block meshes with the meshing gear.

[0009] Preferably, the limiting block is T-shaped.

[0010] Preferably, the surface of the handle is provided with anti-slip texture.

[0011] Preferably, four limiting mechanisms are provided, evenly distributed on the outer surface of the cylinder head.

[0012] Preferably, the positioning component includes a positioning opening and a positioning rod. The positioning opening is formed on the outer surface of the cylinder head, and the positioning rod is fixed to the outer surface of the connecting bracket. The positioning opening and the positioning rod are positioned correspondingly, and the positioning rod is inserted into the positioning opening.

[0013] Preferably, it further includes a sealing annular gasket, which is disposed between the cylinder body and the cylinder head of the compression cylinder.

[0014] The present invention also provides a method for using a liquid-driven gas compression cylinder sealing structure, comprising the following steps: S1. Drive the moving plate to slide along the inner wall of the component cavity and the limiting groove, so that the connecting frame is disengaged from the cylinder body of the compression cylinder; S2. Replace the sealing ring gasket; S3. Under the positioning action of the positioning component, the docking connecting frame and the compression cylinder body are connected, and the moving plate is driven to slide along the inner wall of the component cavity and the limiting groove, so that the connecting frame and the compression cylinder body are tightly connected.

[0015] The beneficial effects of this invention are as follows: This invention, through the coordinated action of the connecting frame, cylinder head, and limiting mechanism, allows for the rapid disengagement of the cylinder head from the connecting frame and the compression cylinder body. This facilitates the removal and replacement of the sealing ring gasket. During installation after replacement, the cylinder head and connecting frame are quickly aligned under the positioning of the positioning component, thus fixing the sealing ring gasket between the compression cylinder body and the cylinder head. This rapid replacement ensures the sealing performance of the liquid-driven gas compression cylinder. This invention is easy to operate, reduces equipment downtime, has minimal impact on production line continuity, and improves production efficiency.

[0016] This invention utilizes the combined action of a gear, a sliding plate, a limiting block, and a spring. Under the push of the spring, the sliding plate can drive the limiting block into the groove of the gear, thereby preventing the gear from reversing. After the cylinder head is closed, the gear cannot reverse, preventing the first rotating shaft from rotating back. This restricts the moving plate within the limiting groove, ensuring a tight connection between the connecting frame and the cylinder head, reliable connection, and good sealing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the internal structure of the limiting mechanism of the present invention.

[0021] Figure 5 This is a schematic diagram of the connection structure between the connecting bracket and the cylinder head of the present invention.

[0022] Figure 6 For the present invention Figure 1 A magnified structural diagram of point A in the middle.

[0023] In the diagram: 1. Compression cylinder body; 2. Connecting frame; 3. Cylinder head; 4. Limiting mechanism; 401. Component cavity; 402. Limiting groove; 403. First rotating shaft; 404. Threaded part; 405. Barrier ring; 406. Moving plate; 407. First bevel gear; 408. Second rotating shaft; 409. Second bevel gear; 410. Rotary handle; 411. Meshing gear; 412. Slide groove; 413. Slide plate; 414. Limiting block; 415. Spring; 5. Oil reservoir; 6. Positioning opening; 7. Positioning rod; 8. Sealing ring gasket; 9. Hydraulic motor; 10. Piston rod; 11. Reducer; 12. Sealing support ring; 13. Guide sealing ring; 14. Piston body; 15. Piston sealing ring. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0025] Example 1 like Figure 1 and Figure 2 As shown, the liquid-driven gas compression cylinder sealing structure of the present invention includes a compression cylinder body 1, a connecting frame 2, a cylinder cover 3, a limiting mechanism 4, and a positioning component. The connecting frame 2 is fixedly connected to the outer wall of the compression cylinder body 1, the cylinder cover 3 covers the opening of the compression cylinder body 1, the limiting mechanism 4 is disposed between the cylinder cover 3 and the connecting frame 2, and the positioning component is disposed between the connecting frame 2 and the cylinder cover 3 for positioning the cylinder body die-casting. like Figure 3 As shown, the limiting mechanism 4 includes a component cavity 401, a limiting groove 402, a moving plate 406, and a driving mechanism. The component cavity 401 is opened inside the cylinder head 3, the limiting groove 402 is opened on the outer surface of the connecting frame 2, the moving plate 406 is disposed in the component cavity 401 and the limiting groove 402, and the driving mechanism is used to drive the moving plate 406 to slide along the inner wall of the component cavity 401 and the limiting groove 402.

[0026] The sealing structure of the liquid-driven gas compressor cylinder of the present invention is used to disassemble the compressor cylinder during the replacement of the compressor cylinder sealing gasket. The cylinder cover 3 can be quickly disconnected from the connecting frame 2 and the compressor cylinder body 1 by the limiting mechanism 4, and the sealing ring gasket 8 can be quickly removed for replacement. During subsequent installation, the cylinder cover 3 and the connecting frame 2 can be quickly connected under the positioning of the positioning opening 6 and the positioning rod 7, so that the sealing ring gasket 8 is fixed between the compressor cylinder body 1 and the cylinder cover 3, thereby completing the quick replacement and ensuring the sealing performance of the liquid-driven gas compressor cylinder. Example 2 Based on Example 1, such as Figure 4 As shown, the drive mechanism includes a first rotating shaft 403, a threaded part 404, a blocking ring 405, a first bevel gear 407, a second rotating shaft 408, a second bevel gear 409, and a handle 410.

[0027] The first rotating shaft 403 is disposed inside the component cavity 401. Threaded portions 404 are disposed at both ends of the first rotating shaft 403, with the threads of the threaded portions 404 at both ends having opposite directions. A blocking ring 405 is disposed at the connection between the smooth portion and the threaded portion 404 of the first rotating shaft 403. One end of the moving plate 406 is threadedly connected to the first rotating shaft 403. The first bevel gear 407 is fixedly sleeved on the outer surface of the first rotating shaft 403. The outer surface of the second rotating shaft 408 is rotatably connected to the inner wall of the component cavity 401. The second bevel gear 409 is fixedly sleeved on the second rotating shaft 408 and meshes with the first bevel gear 407. The rotating handle 410 is fixedly connected to the second rotating shaft 408.

[0028] In this embodiment, the surface of the handle 410 is provided with anti-slip texture to prevent the operator's hand from slipping when rotating.

[0029] Example 3 Based on Example 2, such as Figure 4 As shown, the limiting mechanism 4 in this embodiment also includes a stop component, which includes a meshing gear 411, a slide groove 412, a slide plate 413, a limiting block 414, and a spring 415.

[0030] The gear 411 is fixedly connected to the second rotating shaft 408. The slide groove 412 is opened on the outer surface of the cylinder head 3. The inner wall of the slide groove 412 is slidably connected to the slide plate 413. One end of the slide plate 413 is fixedly connected to the spring 415, and the spring 415 is set in the slide groove 412. The limit block 414 is fixedly connected to the slide plate 413. The end face of the limit block 414 is engaged with the gear 411.

[0031] In this embodiment, the limiting block 414 is T-shaped, and the teeth on the surface of the meshing gear 411 are of a special shape, with one side being an inclined surface. The shape of the teeth of the limiting block 414 is adapted to the meshing gear 411, allowing the meshing gear 411 to rotate in one direction. This prevents the second rotating shaft 408 from rotating and causing the moving plate 406 to disengage from the limiting groove 402, thus preventing the cylinder head 3 from being fixedly connected to the connecting frame 2.

[0032] One end of the spring 415 away from the outer surface of the slide plate 413 is fixedly connected to the inner wall of the slide groove 412. In this embodiment, the spring 415 is always in a compressed state, so that the spring 415 can squeeze the slide plate 413 and the limiting block 414, so that the limiting block 414 can stably engage and limit the meshing gear 411.

[0033] Example 4 Based on Example 1, this example has four limiting mechanisms 4, which are evenly distributed on the outer surface of the cylinder head 3.

[0034] Example 5 Based on Example 1, such as Figure 5 and Figure 6 As shown, in this embodiment, the positioning component includes a positioning opening 6 and a positioning rod 7.

[0035] The positioning opening 6 is opened on the outer surface of the cylinder head 3, and the positioning rod 7 is fixed on the outer surface of the connecting frame 2. The positions of the positioning opening 6 and the positioning rod 7 are corresponding. The positioning rod 7 is inserted into the positioning opening 6. In this embodiment, the positioning opening 6 and the positioning rod 7 can be positioned when the cylinder head 3 is connected to the connecting frame 2, so that the two can be quickly connected and the maintenance efficiency of the compression cylinder can be improved.

[0036] In this embodiment, four positioning openings 6 are arranged in a circular array on the outer surface of the cylinder head 3, and correspondingly, four positioning rods 7 are arranged in a circular array on the outer surface of the connecting frame 2.

[0037] A sealing ring gasket 8 is installed at the open end face of the compression cylinder body 1. In this embodiment, the sealing ring gasket 8 is made of rubber. After the cylinder cover 3 and the connecting bracket 2 are fixedly connected, the connection between the cylinder cover 3 and the compression cylinder body 1 is sealed, thereby ensuring the overall sealing effect of the compression cylinder body 1.

[0038] Example 6 Based on Example 1, in this example, an oil reservoir 5 is installed on the outer surface of the compression cylinder body 1, a hydraulic motor 9 is installed on the inner wall of the compression cylinder body 1, a piston rod 10 is installed on the outer surface of the hydraulic motor 9, a reducer 11 is fixedly connected to the outer surface of the piston rod 10, and the outer surface of the reducer 11 is fixedly connected to the inner wall of the compression cylinder body 1. A sealing support ring 12 is installed on the inner wall of the compression cylinder body 1, and a guide sealing ring 13 is installed on the inner wall of the compression cylinder body 1.

[0039] A piston body 14 is fixedly connected to the outer surface of the piston rod 10, and the outer surface of the piston body 14 is slidably connected to the inner wall of the guide sealing ring 13. In this embodiment, the guide sealing ring 13 can guide the movement of the piston body 14, thereby ensuring that the guide sealing ring 13 can stably compress gas. A piston sealing ring 15 is fixedly connected to the inner wall of the piston body 14. In this embodiment, the piston sealing ring 15 is preferably made of polytetrafluoroethylene, which has high wear resistance and sealing properties, ensuring that gas leakage does not occur when the piston body 14 slides on the inner wall of the guide sealing ring 13, thereby ensuring the normal operation of the compression cylinder.

[0040] Example 7 This embodiment provides the working principle of the sealing structure of the liquid-driven gas compression cylinder of the present invention: When disassembling the cylinder cover 3 to repair the sealing annular gasket 8, firstly, the limiting block 414 is pulled away from the meshing gear 411 to compress the spring 415. At this time, the limiting block 414 disengages from the meshing gear 411 and releases the limiting of the meshing gear 411, allowing it to rotate. Then, the handle 410 is rotated in the opposite direction to drive the second bevel gear 409 and the first bevel gear 407 to rotate, causing the first rotating shaft 403 and the threaded part 404 to rotate, thereby driving the two threaded moving plates 406 to move synchronously to the middle. When the two moving plates 406 move to the middle part, the limiting fixation between the cylinder cover 3 and the connecting frame 2 can be released, thereby allowing the cylinder cover 3 to be removed to repair the internal sealing annular gasket 8. Other sealing parts are inspected and replaced. Finally, after the replacement is completed, the cylinder head 3 and the connecting frame 2 can be quickly connected under the positioning of the positioning opening 6 and the positioning rod 7. Rotating the handle 410 drives the second bevel gear 409 and the first bevel gear 407 to rotate, causing the first rotating shaft 403 and the threaded part 404 to rotate, thereby driving the two threaded moving plates 406 to move to both sides synchronously. When the two moving plates 406 move to both sides, the limiting and fixing between the cylinder head 3 and the connecting frame 2 is completed. After releasing the pull on the limiting block 414, the meshing gear 411 can be stably limited under the compression of the spring 415, so that it can rotate in one direction and cannot rotate back, so that the moving plate 406 cannot move to the middle, and the cylinder head 3 and the connecting frame 2 are stably sealed and connected.

[0041] Example 8 The present invention also provides a method for using a liquid-driven gas compression cylinder sealing structure, comprising the following steps: S1. Drive the moving plate 406 to slide along the inner wall of the component cavity 401 and the limiting groove 402, so that the connecting frame 2 is disengaged from the cylinder body 1 of the compression cylinder.

[0042] S2. Replace the sealing ring gasket 8.

[0043] S3. Under the positioning action of the positioning component, the connecting frame 2 and the compression cylinder body 1 are connected, and the moving plate 406 is driven to slide along the inner wall of the component cavity 401 and the limiting groove 402, so that the connecting frame 2 and the compression cylinder body 1 are tightly connected.

[0044] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0045] It should be noted that the standard parts used in this invention can all be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A sealing structure for a liquid-driven gas compression cylinder, characterized in that, The cylinder includes a compression cylinder body (1), a connecting frame (2), a cylinder head (3), a limiting mechanism (4), and a positioning component. The connecting frame (2) is fixedly connected to the outer wall of the compression cylinder body (1), the cylinder head (3) covers the opening of the compression cylinder body (1), the limiting mechanism (4) is disposed between the cylinder head (3) and the connecting frame (2), and the positioning component is disposed between the connecting frame (2) and the cylinder head (3) for positioning the cylinder body die casting. The limiting mechanism (4) includes a component cavity (401), a limiting groove (402), a moving plate (406), and a driving mechanism. The component cavity (401) is opened inside the cylinder head (3), the limiting groove (402) is opened on the outer surface of the connecting frame (2), the moving plate (406) is disposed in the component cavity (401) and the limiting groove (402), and the driving mechanism is used to drive the moving plate (406) to slide along the inner wall of the component cavity (401) and the limiting groove (402).

2. The sealing structure of the liquid-driven gas compression cylinder according to claim 1, characterized in that, The drive mechanism includes a first rotating shaft (403), a threaded portion (404), a blocking ring (405), a first bevel gear (407), a second rotating shaft (408), a second bevel gear (409), and a rotating handle (410). The first rotating shaft (403) is disposed within the component cavity (401), and the threaded portion (404) is disposed at both ends of the first rotating shaft (403), with the threads of the threaded portions (404) at both ends having opposite directions of rotation. The blocking ring (405) is disposed on the smooth portion and the threaded portion of the first rotating shaft (403). At the connection of part (404), one end of the movable plate (406) is threadedly connected to the first rotating shaft (403), the first bevel gear (407) is fixedly sleeved on the outer surface of the first rotating shaft (403), the outer surface of the second rotating shaft (408) is rotatably connected to the inner wall of the component cavity (401), the second bevel gear (409) is fixedly sleeved on the second rotating shaft (408), the second bevel gear (409) meshes with the first bevel gear (407), and the handle (410) is fixedly connected to the second rotating shaft (408).

3. The sealing structure of the liquid-driven gas compression cylinder according to claim 2, characterized in that, The limiting mechanism (4) also includes a stop assembly, which includes a gear (411), a groove (412), a slide plate (413), a limiting block (414), and a spring (415). The gear (411) is fixedly connected to the second rotating shaft (408). The groove (412) is opened on the outer surface of the cylinder head (3). The slide plate (413) is slidably connected to the inner wall of the groove (412). One end of the slide plate (413) is fixedly connected to the spring (415), and the spring (415) is disposed in the groove (412). The limiting block (414) is fixedly connected to the slide plate (413), and the limiting block (414) is engaged with the gear (411).

4. The sealing structure of the liquid-driven gas compression cylinder according to claim 3, characterized in that, The limiting block (414) has a toothed groove at one end, and the meshing gear (411) is a ratchet. The toothed groove of the limiting block (414) meshes with the meshing gear (411).

5. The sealing structure of the liquid-driven gas compression cylinder according to claim 3, characterized in that, The limiting block (414) is T-shaped.

6. The sealing structure of the liquid-driven gas compression cylinder according to claim 2, characterized in that, The surface of the handle (410) is provided with anti-slip texture.

7. The sealing structure of the liquid-driven gas compression cylinder according to claim 1, characterized in that, The limiting mechanism (4) is provided in four parts, which are evenly distributed on the outer surface of the cylinder head (3).

8. The sealing structure of the liquid-driven gas compression cylinder according to claim 1, characterized in that, The positioning component includes a positioning opening (6) and a positioning rod (7). The positioning opening (6) is opened on the outer surface of the cylinder head (3), and the positioning rod (7) is fixed on the outer surface of the connecting frame (2). The positions of the positioning opening (6) and the positioning rod (7) are corresponding, and the positioning rod (7) is inserted into the positioning opening (6).

9. The sealing structure of the liquid-driven gas compression cylinder according to any one of claims 1-8, characterized in that, It also includes a sealing ring gasket (8), which is disposed between the cylinder body (1) and the cylinder head (3) of the compression cylinder.

10. A method using the sealing structure of a liquid-driven gas compression cylinder as described in claim 9, characterized in that, Includes the following steps: S1. Drive the moving plate (406) to slide along the inner wall of the component cavity (401) and the limiting groove (402), so that the connecting frame (2) is disengaged from the cylinder body (1) of the compression cylinder; S2. Replace the sealing ring gasket (8); S3. Under the positioning action of the positioning component, the docking connecting frame (2) and the compression cylinder body (1) are connected, and the moving plate (406) is driven to slide along the inner wall of the component cavity (401) and the limiting groove (402) so that the connecting frame (2) and the compression cylinder body (1) are tightly connected.

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