CN217233978U

CN217233978U - Novel piston structure used in cylinder

Info

Publication number: CN217233978U
Application number: CN202221179127.0U
Authority: CN
Inventors: 王辉; 张绍彬; 张风祥; 张晓燕; 范宝明
Original assignee: Taizhou Boshite Precision Casting Co ltd
Current assignee: Taizhou Boshite Precision Casting Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-08-19
Anticipated expiration: 2032-05-16

Abstract

The utility model provides a have a novel piston structure for in cylinder, including the cylinder with be located the inboard ejector pin of cylinder, the ejector pin is located the inboard one end of cylinder and is provided with first piston, the inside of first piston one side through first bolt respectively fixed mounting have equal activity suit at the second piston and the first spacing dish in the ejector pin outside, the inside of first piston opposite side through second bolt fixed mounting have the spacing dish of second of activity suit in the ejector pin outside. This a novel piston structure for in cylinder, both sides through at first sealing ring and second sealing ring set up sealed recess, set up first boss and set up the second boss in one side of first piston and second piston in first spacing dish and the spacing dish opposite side of second, make piston structure can carry out axial direction's compression to the sealing ring through sealed recess, the cooperation of first boss and second boss, and then guarantee that first piston and second piston can be inseparable attached on the piston, thereby improve the sealing performance of sealing ring.

Description

Novel piston structure used in cylinder

Technical Field

The utility model relates to a cylinder technical field specifically discloses a novel piston structure for in cylinder.

Background

The cylinder is a cylindrical metal member which is linearly reciprocated inside the cylinder by a guide piston.

Most of pistons partially sleeved inside cylinders in the prior art are designed to be of an integrated structure, so that the sealing rings and the supporting rings can be sleeved on the pistons only by expanding with tools, the sealing rings are very inconvenient to mount and dismount, meanwhile, the sealing rings cannot be tightly attached to the pistons only by radial acting force between the sealing rings and the pistons, and the sealing performance of the sealing rings is poor.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks and deficiencies of the prior art, the present application is directed to a novel piston structure for use in a cylinder, comprising a cylinder barrel and a ram located inside the cylinder barrel, a first piston is arranged at one end of the ejector rod, which is positioned at the inner side of the cylinder barrel, a second piston and a first limiting disc which are movably sleeved at the outer side of the ejector rod are respectively and fixedly arranged in one side of the first piston through a first bolt, a second limiting disc movably sleeved on the outer side of the ejector rod is fixedly arranged in the other side of the first piston through a second bolt, the outer side of one end of the first piston is sleeved with a first sealing ring which is clamped at one side of the second limiting disc and is movably sleeved at the inner side of the cylinder barrel, the outer side of the other end of the first piston is sleeved with a support ring which is positioned at one side of the second piston and movably sleeved at the inner side of the cylinder barrel, the outside cover of second piston is equipped with the joint and just the activity suit is at the inboard second sealing ring of first spacing dish one side at the cylinder.

Preferably, a sealing gasket sleeved on the outer side of the first bolt is installed between the first piston and the second piston.

Preferably, the first sealing ring and the second sealing ring are provided with sealing grooves on both sides.

Preferably, the opposite sides of the first limiting disc and the second limiting disc are provided with first bosses matched with the sealing grooves.

Preferably, one side of the first piston and one side of the second piston are both provided with second bosses matched with the sealing grooves.

Has the advantages that:

1. this a novel piston structure for in cylinder, through first piston, the second piston, the cooperation of first spacing dish and the spacing dish of second is used, make the piston adopt the sectional type design, and then first sealing ring, support ring and second sealing ring can directly the suit in the outside of first piston and second piston under the prerequisite that does not use the instrument to expand, utilize first bolt and second bolt can be respectively with the second piston simultaneously, first spacing dish and second bolt fixed mounting are in the outside of ejector pin, and then with first sealing ring, be convenient for install and dismantle the sealing ring through dismantling first bolt and second bolt in the stable suit of support ring and second sealing ring in the outside of piston.

2. This a novel piston structure for in cylinder, both sides through at first sealing ring and second sealing ring set up sealed recess, set up first boss and set up the second boss in one side of first piston and second piston in first spacing dish and the spacing dish opposite side of second, make piston structure can carry out axial direction's compression to the sealing ring through sealed recess, the cooperation of first boss and second boss, and then guarantee that first piston and second piston can be inseparable attached on the piston, thereby improve the sealing performance of sealing ring.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial schematic view of the structure of the present invention;

fig. 3 is an explosion diagram of the structure of the present invention.

In the figure: 1. a cylinder barrel; 2. a top rod; 3. a first piston; 4. a first bolt; 5. a second piston; 6. a first limiting disc; 7. a second bolt; 8. a second limiting disc; 9. a first seal ring; 10. a support ring; 11. a second seal ring.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

The embodiment of the utility model provides an in the attached drawing: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.

Please refer to fig. 1-3, a novel piston structure for use in a cylinder, includes a cylinder barrel 1 and a push rod 2 located inside the cylinder barrel 1, one end of the push rod 2 located inside the cylinder barrel 1 is provided with a first piston 3, the inside of one side of the first piston 3 is respectively and fixedly provided with a second piston 5 and a first limit disc 6 which are movably sleeved outside the push rod 2, the inside of the other side of the first piston 3 is fixedly provided with a second limit disc 8 which is movably sleeved outside the push rod 2 through a second bolt 7, the outside of one end of the first piston 3 is sleeved with a first sealing ring 9 which is clamped on one side of the second limit disc 8 and movably sleeved inside the cylinder barrel 1, the outside of the other end of the first piston 3 is sleeved with a support ring 10 which is located on one side of the second piston 5 and movably sleeved inside the cylinder barrel 1, the outside of the second piston 5 is sleeved with a second sealing ring 11 which is clamped on one side of the first limit disc 6 and movably sleeved inside the cylinder barrel 1.

Wherein, install the sealed pad of suit in the first bolt 4 outside between first piston 3 and the second piston 5, utilize sealed pad to seal the position between first piston 3 and the second piston 5, and then prevent that gas from leaking from the position between first piston 3 and the second piston 5.

Wherein, the sealing grooves are arranged on both sides of the first sealing ring 9 and the second sealing ring 11.

Wherein, first spacing dish 6 and the spacing dish 8 opposite side of second all are provided with the first boss with sealed recess looks adaptation, utilize first boss can first sealing ring 9 and second sealing ring 11 the terminal surface carry on spacingly, and then prevent that first sealing ring 9 and second sealing ring 11 from receiving the extrusion to produce excessive deformation, influence its leakproofness.

Wherein, one side of first piston 3 and second piston 5 all is provided with the second boss with sealed recess looks adaptation, utilizes the second boss can first sealing ring 9 and second sealing ring 11 the terminal surface carry on spacingly, and then prevents that first sealing ring 9 and second sealing ring 11 from receiving the extrusion to produce excessive deformation, influences its leakproofness.

When the piston mechanism is assembled, the second limiting disc 8 and the support ring 10 are sleeved on the outer side of the first piston 3, the second sealing ring 11 is sleeved on the outer side of the second piston 5, the second limiting disc 8 is sleeved on the outer side of the ejector rod 2, the second limiting disc 8 is fixedly installed on the first piston 3 through the second bolt 7, the sealing pad, the second piston 5 and the first limiting disc 6 are sequentially sleeved on the outer side of the ejector rod 2, and the sealing pad, the second piston 5 and the first limiting disc 6 are fixedly installed on one side of the first piston 3 through the first bolt 4 to complete the assembly of the piston.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The utility model provides a novel piston structure for in cylinder, includes cylinder (1) and is located the inboard ejector pin (2) of cylinder (1), its characterized in that: one end of the ejector rod (2) positioned at the inner side of the cylinder barrel (1) is provided with a first piston (3), a second piston (5) and a first limiting disc (6) which are sleeved on the outer side of the ejector rod (2) are respectively arranged in the first piston (3) through a first bolt (4), a second limiting disc (8) sleeved outside the ejector rod (2) is arranged in the other side of the first piston (3) through a second bolt (7), the outer side of one end of the first piston (3) is sleeved with a first sealing ring (9) which is clamped at one side of the second limiting disc (8) and is sleeved at the inner side of the cylinder barrel (1), the outer side of the other end of the first piston (3) is sleeved with a support ring (10) which is positioned at one side of the second piston (5) and sleeved at the inner side of the cylinder barrel (1), the outer side of the second piston (5) is sleeved with a second sealing ring (11) which is clamped on one side of the first limiting disc (6) and sleeved on the inner side of the cylinder barrel (1).

2. The new piston structure for use in a cylinder according to claim 1, wherein: and a sealing gasket sleeved on the outer side of the first bolt (4) is arranged between the first piston (3) and the second piston (5).

3. The new piston structure for use in a cylinder according to claim 1, wherein: and sealing grooves are formed on two sides of the first sealing ring (9) and the second sealing ring (11).

4. The new piston structure for use in a cylinder according to claim 1, wherein: the opposite sides of the first limiting disc (6) and the second limiting disc (8) are provided with first bosses matched with the sealing grooves.

5. The new piston structure for use in a cylinder according to claim 1, wherein: and one sides of the first piston (3) and the second piston (5) are provided with second bosses matched with the sealing grooves.