Novel sealing structure of diaphragm compressor cylinder body assembly

Abstract

The utility model discloses a novel sealing structure of a diaphragm compressor cylinder body assembly, which relates to the technical field of sealing structures and comprises an oil cylinder main body, a piston and a cylinder cover, the piston is arranged in the oil cylinder main body, an oil distribution disc is embedded above the oil cylinder main body, and the cylinder cover is arranged at the top end of the oil cylinder main body. A diaphragm is arranged in the oil distribution disc, an air inlet pipe and an exhaust pipe are sequentially arranged on the upper portion of the cylinder cover from left to right, connecting bases are arranged on the edges of the two sides of the oil cylinder body, and connecting rings are arranged on the inner walls of the connecting bases. According to the novel sealing structure of the diaphragm compressor cylinder body assembly, the installed sealing ring can be limited through the limiting pin, the sealing ring in the novel sealing structure of the diaphragm compressor cylinder body assembly can be conveniently and regularly limited and replaced, the sealing effect is ensured, auxiliary limiting can be conducted between the cylinder cover and the oil cylinder body through the connecting block, and the sealing effect is improved. And the cylinder body assembly of the diaphragm compressor can be conveniently limited and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, in particular to a novel sealing structure of a diaphragm compressor cylinder assembly. Background Art

[0002] Diaphragm compressor is a commonly used type of industrial compressor. Diaphragm compressor is a reciprocating compressor that mainly relies on the reciprocating motion of the diaphragm in the cylinder to compress and transport gas. The cylinder assembly of the diaphragm compressor is one of the core components of this type of compressor, responsible for accommodating and supporting the compression chamber and the diaphragm. The cylinder assembly of the diaphragm compressor generally uses O-rings or specially designed sealing rings at various interfaces of the cylinder to ensure airtightness under high pressure.

[0003] The diaphragm compressor cylinder assembly currently on the market is generally sealed by a sealing ring installed at the connection when in use. The sealing ring of the existing diaphragm compressor cylinder assembly is easily damaged and falls off after long-term use, which will directly affect the sealing effect of the diaphragm compressor cylinder assembly. Therefore, we propose a new sealing structure for the diaphragm compressor cylinder assembly. Utility Model Content

[0004] The purpose of the utility model is to provide a novel sealing structure of a diaphragm compressor cylinder assembly to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new sealing structure of a diaphragm compressor cylinder assembly, comprising a cylinder body, a piston and a cylinder head, a piston is arranged inside the cylinder body, and an oil distribution plate is inlaid and installed above the cylinder body, a cylinder head is arranged at the top of the cylinder body, a diaphragm is arranged inside the oil distribution plate, an intake pipe and an exhaust pipe are arranged above the cylinder head from left to right, connecting seats are arranged on both side edges of the cylinder body, and a connecting ring is arranged on the inner wall of the connecting seat, a sealing ring is inlaid and installed above the connecting ring, and the connecting ring is arranged on the outside of the cylinder body and the cylinder head.

[0006] Preferably, a groove is provided on the edge of the lower surface of the cylinder cover, the upper side of the sealing ring corresponds to the inside of the groove, and a limiting groove is provided on one side of the sealing ring.

[0007] Preferably, an installation cavity is provided inside the connecting ring, and a limiting pin inserted into the limiting groove passes through the installation cavity, and a guide rod passes through the lower part of the limiting pin.

[0008] Preferably, a first spring is sleeved on the outer side of the guide rod, one end of the first spring is connected to the limit pin, and the other end of the first spring is connected to the inner wall of the installation cavity.

[0009] Preferably, an active cavity is provided in the upper interior of the connecting seat, and a connecting block passes through the middle of the active cavity, and a convex strip is provided on the middle outer wall of the connecting block.

[0010] Preferably, both sides of the convex strip are penetrated by a limiting rod, and a second spring is sleeved on the outer side of the limiting rod, and both ends of the limiting rod are connected to the inner wall of the movable cavity.

[0011] Preferably, two ends of the second spring are connected to the convex strip and the inner wall of the movable cavity respectively, and a locking bolt connected to the cylinder cover is passed through the top of one end of the connecting block.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the new sealing structure of the diaphragm compressor cylinder assembly can limit the installed sealing ring through the limit pin, which is convenient for regular limit replacement of the sealing ring in the new sealing structure of the diaphragm compressor cylinder assembly to ensure the sealing effect; the connecting block can be used to assist in limiting the position between the cylinder cover and the cylinder body, which is convenient for the limit assembly of the diaphragm compressor cylinder assembly.

[0013] 1. The new sealing structure of the diaphragm compressor cylinder assembly first pulls the limit pin outward to the limit position, so that the limit pin is completely inside the installation cavity. At this time, the sealing ring to be replaced can be pulled upward and taken out, and the new sealing ring is placed inside the connecting ring. Then the limit pin pulled outward is loosened, so that the limit pin and the limit groove are inserted to limit the reinstalled sealing ring. The installed sealing ring can be limited by arranging a telescopic limit pin inside the connecting ring, so as to facilitate the regular replacement of the sealing ring in the new sealing structure of the diaphragm compressor cylinder assembly to ensure the sealing effect;

[0014] 2. The novel sealing structure of the diaphragm compressor cylinder assembly first pulls the connecting block outward to the extreme position, so that the part of the connecting block that extends outward in the initial state is completely inside the active cavity, and the cylinder cover can be aligned with the top of the cylinder body. Then the pulled connecting block is loosened and fitted to the surface of the cylinder cover, and finally the locking bolt is passed through the connecting block and the cylinder cover for locking installation. By arranging a movable connecting block above the connecting seat, auxiliary limiting can be performed between the cylinder cover and the cylinder body, thereby facilitating the limited assembly of the diaphragm compressor cylinder assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cutaway structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main cutaway structure of the connecting ring of the utility model;

[0017] Figure 3 This is a schematic diagram of the top view of the connecting ring structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the main cutaway structure of the connecting seat of the utility model.

[0019] In the figure: 1. Cylinder body; 2. Piston; 3. Oil distribution plate; 4. Cylinder head; 5. Diaphragm; 6. Inlet pipe; 7. Exhaust pipe; 8. Connecting seat; 9. Connecting ring; 10. Sealing ring; 11. Groove; 12. Limiting groove; 13. Mounting cavity; 14. Limiting pin; 15. Guide rod; 16. First spring; 17. Movable cavity; 18. Connecting block; 19. Raised strip; 20. Limiting rod; 21. Second spring; 22. Locking bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a technical solution: a novel sealing structure of a diaphragm compressor cylinder assembly, comprising a cylinder body 1, a piston 2 and a cylinder head 4, wherein the piston 2 is arranged inside the cylinder body 1, and an oil distribution plate 3 is inlaid and installed above the cylinder body 1, a cylinder head 4 is arranged at the top of the cylinder body 1, a diaphragm 5 is arranged inside the oil distribution plate 3, an air intake pipe 6 and an exhaust pipe 7 are arranged above the cylinder head 4 from left to right, connecting seats 8 are arranged on both side edges of the cylinder body 1, and a connecting ring 9 is arranged on the inner wall of the connecting seat 8, a sealing ring 10 is inlaid and installed above the connecting ring 9, and the connecting ring 9 is arranged on the outer sides of the cylinder body 1 and the cylinder head 4.

[0022] A groove 11 is provided on the edge of the lower surface of the cylinder head 4, the upper part of the sealing ring 10 corresponds to the inside of the groove 11, and a limiting groove 12 is provided on one side of the sealing ring 10; an installation cavity 13 is provided inside the connecting ring 9, and a limiting pin 14 which is plugged into the limiting groove 12 passes through the inside of the installation cavity 13, and a guide rod 15 passes through the lower part of the limiting pin 14; a first spring 16 is sleeved on the outer side of the guide rod 15, one end of the first spring 16 is connected to the limiting pin 14, and the other end of the first spring 16 is connected to the inner wall of the installation cavity 13, the limiting pin 14 forms a telescopic structure between the first spring 16 and the installation cavity 13, and the installation cavity 13 is symmetrically distributed about the center line of the connecting ring 9.

[0023] During the specific implementation, the limit pin 14 is first pulled outward, and the pulled limit pin 14 moves along the guide rod 15 inside the installation cavity 13, and the first spring 16 sleeved on the outside of the guide rod 15 is squeezed by the moving limit pin 14. As the limit pin 14 moves, it will gradually separate from the limit groove 12 until the limit pin 14 is pulled to the limit position, so that the limit pin 14 is completely inside the installation cavity 13. At this time, the sealing ring 10 that needs to be replaced can be pulled upward and taken out, and the new sealing ring 10 can be placed in the corresponding connection The inside of the ring 9 will then loosen the limit pin 14 that is pulled outward. The loosened limit pin 14 can automatically reset inward by the elastic force of the first spring 16 until the limit pin 14 penetrates the installation cavity 13 and the limit groove 12 again to be plugged in. The reinstalled sealing ring 10 can be limited by arranging a telescopic limit pin 14 inside the connecting ring 9. This makes it convenient to regularly limit and replace the sealing ring 10 in the new sealing structure of the diaphragm compressor cylinder assembly to ensure the sealing effect.

[0024] See also Figure 1 and Figure 4 An active cavity 17 is provided inside the upper part of the connecting seat 8, and a connecting block 18 is passed through the middle of the active cavity 17, and a convex strip 19 is provided on the outer wall of the middle part of the connecting block 18; a limiting rod 20 is passed through both sides of the convex strip 19, and a second spring 21 is sleeved on the outer side of the limiting rod 20, and both ends of the limiting rod 20 are connected to the inner wall of the active cavity 17; the two ends of the second spring 21 are respectively connected to the convex strip 19 and the inner wall of the active cavity 17, and a locking bolt 22 connected to the cylinder head 4 is passed through the upper part of one end of the connecting block 18, and the locking bolt 22 is threadedly connected to the cylinder head 4, and the limiting rod 20 is symmetrically distributed about the center line of the convex strip 19, and the convex strip 19 forms a telescopic structure with the active cavity 17 through the second spring 21.

[0025] In specific implementation, when assembling the cylinder cover 4 and the cylinder body 1, the connecting block 18 is first pulled outward, and the pulled connecting block 18 with the connected convex strips 19 moves synchronously. As the connecting block 18 moves along the limiting rod 20 into the active chamber 17, the second spring 21 sleeved on the outer side of the limiting rod 20 is squeezed until the connecting block 18 is pulled to the limit position, so that the part of the connecting block 18 extending outward in the initial state is completely inside the active chamber 17, and the cylinder cover 4 can be corresponding to the top of the cylinder body 1, and then the pulled connecting block 18 is loosened. The loosened connecting block 18 can be automatically reset outward by the elastic force of the second spring 21, so that the connecting block 18 is attached to the surface of the cylinder cover 4, and finally the locking bolt 22 is passed through the connecting block 18 and the cylinder cover 4 for locking and installation. By arranging a movable connecting block 18 above the connecting seat 8, auxiliary limiting can be performed between the cylinder cover 4 and the cylinder body 1, thereby facilitating the limiting assembly of the diaphragm compressor cylinder assembly.

[0026] To sum up, when using the new sealing structure of the diaphragm compressor cylinder assembly, the cylinder head 4 and the cylinder body 1 are locked and installed through the cooperation between the connecting block 18 and the locking bolt 22. After the diaphragm compressor cylinder assembly has been used for a long time, the cylinder head 4 and the cylinder body 1 are first disassembled, and then the limit pin 14 is pulled outward to the extreme position, and the sealing ring 10 to be replaced can be pulled upward and taken out, and the new sealing ring 10 is placed inside the connecting ring 9, and then the limit pin 14 pulled outward is loosened to limit the reinstalled sealing ring 10. The sealing effect can be ensured by the sealing ring 10 that can be quickly limited and replaced. The contents not described in detail in this description belong to the existing technology known to professional and technical personnel in this field.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel sealing structure for a diaphragm compressor cylinder assembly, comprising a cylinder body (1), a piston (2) and a cylinder cover (4), characterized in that: A piston (2) is arranged inside the oil cylinder body (1), and an oil distribution plate (3) is mounted on the top of the oil cylinder body (1). A cylinder cover (4) is arranged at the top of the oil cylinder body (1), and a diaphragm (5) is arranged inside the oil distribution plate (3). An intake pipe (6) and an exhaust pipe (7) are arranged from left to right above the cylinder cover (4). Connecting seats (8) are arranged on both side edges of the oil cylinder body (1), and a connecting ring (9) is arranged on the inner wall of the connecting seat (8). A sealing ring (10) is mounted on the top of the connecting ring (9), and the connecting ring (9) is arranged on the outer sides of the oil cylinder body (1) and the cylinder cover (4).

2. A novel sealing structure for a diaphragm compressor cylinder assembly according to claim 1, characterized in that: A groove (11) is provided on the edge of the lower surface of the cylinder cover (4), the upper side of the sealing ring (10) corresponds to the inside of the groove (11), and a limiting groove (12) is provided on one side of the sealing ring (10).

3. A novel sealing structure for a diaphragm compressor cylinder assembly according to claim 2, characterized in that: The connection ring (9) is provided with an installation cavity (13) inside, and a limiting pin (14) inserted into the limiting groove (12) passes through the installation cavity (13), and a guide rod (15) passes through the lower part of the limiting pin (14).

4. A novel sealing structure for a diaphragm compressor cylinder assembly according to claim 3, characterized in that: A first spring (16) is sleeved on the outer side of the guide rod (15), one end of the first spring (16) is connected to the limit pin (14), and the other end of the first spring (16) is connected to the inner wall of the installation cavity (13).

5. The novel sealing structure of a diaphragm compressor cylinder assembly according to claim 1 is characterized in that: An active cavity (17) is provided in the upper interior of the connecting seat (8), and a connecting block (18) passes through the middle of the active cavity (17), and a convex strip (19) is provided on the middle outer wall of the connecting block (18).

6. A novel sealing structure for a diaphragm compressor cylinder assembly according to claim 5, characterized in that: The two sides of the convex strip (19) are penetrated by a limiting rod (20), and the outer side of the limiting rod (20) is sleeved with a second spring (21), and both ends of the limiting rod (20) are connected to the inner wall of the movable cavity (17).

7. A novel sealing structure for a diaphragm compressor cylinder assembly according to claim 6, characterized in that: The two ends of the second spring (21) are respectively connected to the convex strip (19) and the inner wall of the movable chamber (17), and a locking bolt (22) connected to the cylinder cover (4) passes through the top of one end of the connecting block (18).

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