CN216477749U

CN216477749U - Gas compressor with piston rod good sealing mechanism

Info

Publication number: CN216477749U
Application number: CN202220023495.XU
Authority: CN
Inventors: 刘旭洲; 鞠晓梅; 刘彦杰; 刘彦洲
Original assignee: Qingdao Xuzhou Ruifu Refrigeration Equipment Co ltd
Current assignee: Qingdao Xuzhou Ruifu Refrigeration Equipment Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-05-10
Anticipated expiration: 2032-01-05

Abstract

The utility model relates to the technical field of gas compressors, in particular to a gas compressor with a piston rod good sealing mechanism, which comprises a cylinder, wherein a first inner cavity and a second inner cavity are respectively arranged inside the cylinder, a piston rod is arranged in the cylinder, hemispherical sealant is arranged at the bottom of the piston rod, a piston disc is fixedly connected at the bottom of the sealant, the second inner cavity is arranged at the bottom of the first inner cavity, the piston disc is arranged in the second inner cavity, the diameter of piston dish and second inner chamber is the same, and sealed diameter of gluing is the same with the diameter of first inner chamber, and the diameter of first inner chamber is less than the diameter of second inner chamber, equal fixedly connected with admission valve and air outlet valve in first inner chamber and the second inner chamber, sealed top fixedly connected with mount pad, the utility model discloses a sealed glue improves the sealing performance of piston dish, avoids the gas condition of leaking to appear, improves the stability of gas compressor operation.

Description

Gas compressor with piston rod good sealing mechanism

Technical Field

The utility model relates to a gas compressor technical field specifically is a gas compressor with good sealing mechanism of piston rod.

Background

The piston compressor is a compressor which can make gas be pressurized and transferred by means of reciprocating movement of piston, belonging to volume type compressor, also called reciprocating piston compressor or reciprocating compressor, mainly formed from working cavity, driving component, machine body and auxiliary component, the working cavity can be directly used for compressing gas, and formed from cylinder, cylinder sleeve, gas valve, filler, piston and piston rod, the piston can be driven by piston rod and can be made into reciprocating movement in the cylinder, the volumes of working cavities of two sides of piston can be alternatively and oppositely changed, the gas whose volume is reduced is discharged by means of gas valve due to pressure increase, and the gas whose volume is increased is sucked by means of gas valve due to pressure decrease, and the driving component can be used for implementing reciprocating movement.

When the existing gas compressor is used, when the internal gas pressure is too large, gas easily passes through the piston disc and the inner wall of the compressor, so that gas leakage is caused, the normal use of the gas compressor is influenced, the sealing performance of the piston disc is poor, and the piston disc is usually fixedly connected with a piston rod in a connecting mode, so that the gas compressor is inconvenient to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas compressor with good sealing mechanism of piston rod to solve the problem that proposes among the above-mentioned background art.

The technical scheme of the utility model is that: the utility model provides a gas compressor with good sealing mechanism of piston rod, includes the cylinder, inside first inner chamber and the second inner chamber of being provided with respectively of cylinder, be provided with the piston rod in the cylinder, the piston rod bottom is provided with hemispherical sealed glue, sealed glue bottom fixedly connected with piston dish, the second inner chamber is in the bottom of first inner chamber, the piston dish is in the second inner chamber, the piston dish with the diameter of second inner chamber is the same, sealed diameter with the diameter of first inner chamber is the same, the diameter of first inner chamber is less than the diameter of second inner chamber.

Preferably, an air inlet valve and an air outlet valve are fixedly connected in the first inner cavity and the second inner cavity.

Preferably, the top of the sealant is fixedly connected with a mounting seat, the bottom of the piston rod is fixedly connected with a mounting column, the bottom of the mounting column is fixedly connected with a threaded portion, and the threaded portion is in threaded connection with the mounting seat.

Preferably, the mounting seat and the threaded portion are fixedly connected with jacks.

Preferably, the top of the cylinder is fixedly connected with a support ring.

Preferably, a clamping groove is fixedly formed in the peripheral wall of the support ring, and the clamping groove is connected with the top of the cylinder in a clamping mode.

Preferably, the top of the support ring is fixedly connected with a sealing ring, and the sealing ring is sleeved with a dustproof pad.

Preferably, the bottom of the cylinder is fixedly connected with a backing plate.

The utility model discloses an improve and provide a gas compressor with good sealing mechanism of piston rod here, compare with prior art, have following improvement and advantage:

one is as follows: the utility model provides a cylinder inside comprises the common of two inner chambers of first inner chamber and second inner chamber, when piston rod drive piston dish when moving down, if the atmospheric pressure in the first inner chamber exceeds standard, then the atmospheric pressure in the first inner chamber can extrude spherical sealant, cause the sealant both sides to warp, the deformation of sealant provides the space for atmospheric pressure, avoid the gas in the first inner chamber to directly rush through the piston dish and enter into the second inner chamber, when piston rod drive piston dish when moving up, the sealant outside limit can extrude with the bayonet socket between first inner chamber and the second inner chamber, make the sealant bottom warp, and extrude the piston dish, thereby improve the sealing performance of piston dish, moreover, the steam generator is simple in structure, and the leakproofness is high;

the second step is as follows: the utility model has the advantages that the piston rod is connected with the mounting seat through the mounting column by the screw thread, thereby facilitating the disassembly and assembly of the piston rod and the subsequent maintenance work, penetrating the bolt through the jack, improving the connection stability of the mounting seat and the screw thread part and improving the firm degree of the connection between the piston rod and the mounting seat;

and thirdly: the support ring passes through the draw-in groove and installs fixedly with the cylinder, and dustproof the pad can improve dustproof efficiency, avoids outside dust to enter into inside the cylinder.

Drawings

The invention is further explained below with reference to the figures and examples:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional view of the overall structure of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic view of the assembly of the sealing ring and the dust-proof pad of the present invention.

In the figure: 1. a cylinder; 101. an inner cavity; 102. a second lumen; 103. a base plate; 2. a piston rod; 201. Mounting a column; 202. a threaded portion; 203. a jack; 3. sealing glue; 301. a mounting seat; 4. a piston disc; 5. an intake valve; 6. an air outlet valve; 7. a support ring; 8. a card slot; 9. a seal ring; 10. a dust-proof pad.

Detailed Description

The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses an improve and provide a gas compressor with good sealing mechanism of piston rod here, the technical scheme of the utility model is:

as shown in fig. 1-4, a gas compressor with a piston rod good sealing mechanism includes a cylinder 1, a first inner cavity 101 and a second inner cavity 102 are respectively arranged inside the cylinder 1, a piston rod 2 is arranged in the cylinder 1, a hemispherical sealant 3 is arranged at the bottom of the piston rod 2, a piston disc 4 is fixedly connected to the bottom of the sealant 3, the second inner cavity 102 is located at the bottom of the first inner cavity 101, the piston disc 4 is located in the second inner cavity 102, the diameters of the piston disc 4 and the second inner cavity 102 are the same, the diameter of the sealant 3 is the same as that of the first inner cavity 101, the diameter of the first inner cavity 101 is smaller than that of the second inner cavity 102, and a backing plate 103 is fixedly connected to the bottom of the cylinder 1;

an inlet valve 5 and an outlet valve 6 are fixedly connected to the first inner cavity 101 and the second inner cavity 102.

Specifically, the method comprises the following steps: the cylinder 1 is inside to constitute jointly by first inner chamber 101 and second inner chamber 102, when piston rod 2 drive piston dish 4 downstream, if the atmospheric pressure in first inner chamber 101 exceeds standard, then the atmospheric pressure in first inner chamber 101 can extrude spherical sealed glue 3, cause sealed glue 3 both sides to warp, sealed glue 3's deformation provides the space for atmospheric pressure, avoid the gas in first inner chamber 101 directly to rush through piston dish 4 and enter into second inner chamber 102, when piston rod 2 drive piston dish 4 upstream, sealed glue 3 outside limit can with the bayonet socket extrusion between first inner chamber 101 and the second inner chamber 102, make sealed glue 3 bottom warp, and extrude piston dish 4, thereby improve piston dish 4's sealing performance, moreover, the steam generator is simple in structure, the leakproofness is high.

The top of the sealant 3 is fixedly connected with an installation seat 301, the bottom of the piston rod 2 is fixedly connected with an installation column 201, the bottom of the installation column 201 is fixedly connected with a threaded part 202, and the threaded part 202 is in threaded connection with the installation seat 301.

Specifically, the method comprises the following steps: the piston rod 2 is connected with the mounting base 301 through the mounting column 201 in a threaded manner, so that the piston rod 2 is convenient to disassemble and assemble, and subsequent maintenance work is convenient.

Equal fixedly connected with jack 203 on mount pad 301 and screw portion 202, in this setting, run through jack 203 with the bolt, improve the stability of being connected of mount pad 301 and screw portion 202, improve the firm degree that piston rod 2 is connected with mount pad 301.

The top of the cylinder 1 is fixedly connected with a support ring 7, the support ring 7 can limit and fix the piston rod 2 in the setting, the piston rod 2 is allowed to linearly reciprocate, and the stability of the movement of the piston rod 2 is improved.

Fixed draw-in groove 8 of having seted up on the 7 periphery walls of support ring, draw-in groove 8 is connected with 1 top joint of cylinder, and 7 top fixedly connected with sealing ring 9 of support ring have cup jointed dustproof pad 10 on the sealing ring 9, and in this setting, support ring 7 is installed fixedly through draw-in groove 8 and cylinder 1, and dustproof pad 10 can improve dustproof efficiency, avoids external dust to enter into inside cylinder 1.

The working principle is as follows: the cylinder 1 is internally composed of a first inner cavity 101 and a second inner cavity 102 together, when the piston rod 2 drives the piston disc 4 to move downwards, if the air pressure in the first inner cavity 101 exceeds the standard, the air pressure in the first inner cavity 101 can extrude the spherical sealant 3 to cause the two sides of the sealant 3 to deform, the deformation of the sealant 3 provides a space for the air pressure to prevent the air in the first inner cavity 101 from directly rushing through the piston disc 4 to enter the second inner cavity 102, when the piston rod 2 drives the piston disc 4 to move upwards, the outer side of the sealant 3 can extrude with a bayonet between the first inner cavity 101 and the second inner cavity 102 to deform the bottom of the sealant 3 and extrude the piston disc 4, thereby improving the sealing performance of the piston disc 4, the structure is simple, the sealing performance is high, the piston rod 2 is connected with the mounting seat 301 through the mounting column 201 by screw threads, and the disassembly and assembly of the piston rod 2 are convenient, subsequent maintenance work of being convenient for runs through jack 203 with the bolt, improves the stability of being connected of mount pad 301 and screw portion 202, improves the firm degree that piston rod 2 and mount pad 301 are connected.

Claims

1. The utility model provides a gas compressor with piston rod good sealing mechanism which characterized in that: including cylinder (1), cylinder (1) inside is provided with first inner chamber (101) and second inner chamber (102) respectively, be provided with piston rod (2) in cylinder (1), piston rod (2) bottom is provided with hemispherical sealed glue (3), sealed glue (3) bottom fixedly connected with piston dish (4), second inner chamber (102) are in the bottom of first inner chamber (101), piston dish (4) are in second inner chamber (102), piston dish (4) with the diameter of second inner chamber (102) is the same, the diameter of sealed glue (3) with the diameter of first inner chamber (101) is the same, the diameter of first inner chamber (101) is less than the diameter of second inner chamber (102).

2. A gas compressor with a good sealing mechanism of piston rod according to claim 1, characterized in that: and an air inlet valve (5) and an air outlet valve (6) are fixedly connected in the first inner cavity (101) and the second inner cavity (102).

3. A gas compressor with a good sealing mechanism of piston rod according to claim 1, characterized in that: the sealing glue (3) is fixedly connected with a mounting seat (301) at the top, a mounting column (201) is fixedly connected with the bottom of the piston rod (2), a threaded portion (202) is fixedly connected with the bottom of the mounting column (201), and the threaded portion (202) is in threaded connection with the mounting seat (301).

4. A gas compressor with a good sealing mechanism of piston rod according to claim 3, characterized in that: and the mounting seat (301) and the thread part (202) are fixedly connected with jacks (203).

5. A gas compressor with a good sealing mechanism of piston rod according to claim 1, characterized in that: the top of the cylinder (1) is fixedly connected with a support ring (7).

6. A gas compressor with good sealing mechanism of piston rod according to claim 5, characterized in that: clamping groove (8) are fixedly arranged on the outer peripheral wall of the support ring (7), and the clamping groove (8) is connected with the top of the cylinder (1) in a clamping mode.

7. A gas compressor with good sealing mechanism of piston rod according to claim 5, characterized in that: the top of the support ring (7) is fixedly connected with a sealing ring (9), and the sealing ring (9) is sleeved with a dustproof pad (10).

8. A gas compressor with a good sealing mechanism of piston rod according to claim 1, characterized in that: the bottom of the cylinder (1) is fixedly connected with a backing plate (103).