CN211343554U - Pneumatic rod suitable for light pressure working condition - Google Patents
Pneumatic rod suitable for light pressure working condition Download PDFInfo
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- CN211343554U CN211343554U CN201922303996.4U CN201922303996U CN211343554U CN 211343554 U CN211343554 U CN 211343554U CN 201922303996 U CN201922303996 U CN 201922303996U CN 211343554 U CN211343554 U CN 211343554U
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- rod
- light pressure
- pneumatic rod
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Abstract
The utility model relates to the technical field of pneumatic rods, in particular to a pneumatic rod suitable for light pressure working conditions, which comprises a cylinder body, wherein a piston rod is connected in the cylinder body in a sliding way, the piston rod comprises a rod part and a piston which is formed on the rod part in an injection molding way, the rod part is made of metal material, the piston is provided with a guiding conical surface and a sealing surface, the sealing surface is provided with an annular groove, the annular groove is internally sheathed with a sealing ring, the detachable connection mode of the rod part and the piston in the traditional pneumatic rod is changed, the connection between the rod part and the piston is realized by adopting a rubber coating injection molding way, the connection is firm, the size precision can be ensured, in addition, the piston made of plastic material can effectively reduce the friction resistance in the cylinder body 1 and can greatly reduce the dead weight, so that the piston can operate light and fast, has no shake, no, effectively improve the joint strength of pole portion and piston, can guarantee the holistic rigidity of piston rod more effectively.
Description
Technical Field
The utility model belongs to the technical field of the pneumatic rod technique and specifically relates to a pneumatic rod who is suitable for light pressure operating mode.
Background
The pneumatic rod is an industrial accessory which can play a role in supporting, buffering, braking, height adjustment, angle adjustment and the like, and generally comprises a pressure cylinder, a piston rod, a piston, a sealing element, a guide sleeve and a filler. The principle is that inert gas or oil-gas mixture is filled in a closed pressure cylinder, the pressure in a cavity is several times to dozens of times higher than the atmospheric pressure, and the motion of a piston rod is realized by utilizing the pressure difference generated by the cross section area of the piston rod smaller than that of the piston.
The existing pneumatic rod can meet the normal demand pressure, but under the condition that the working condition pressure is small, for example: between 20 and 50N, the product can shake and operate unsmoothly.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of current pneumatic stem can not adapt to the light pressure operating mode, the utility model provides a be suitable for the pneumatic stem of light pressure operating mode.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a be suitable for pneumatic rod of light pressure operating mode, contains the cylinder body, sliding connection piston rod in the cylinder body, the piston rod contains pole portion and injection moulding in the piston of pole portion, pole portion is the metal material, the piston is provided with the direction conical surface and sealed face, sealed face department is provided with the annular groove, the annular groove endotheca has the sealing washer.
According to another embodiment of the present invention, further comprising a skirt portion is provided at the guiding conical surface of the piston. An avoiding space is provided for the piston, and the piston rod can smoothly run in the cylinder body conveniently.
According to another embodiment of the present invention, further comprising at least two sets of annular grooves of the piston. Further improving the sealing performance between the piston and the cylinder body.
According to another embodiment of the present invention, further comprising that the head of the piston is configured as a circular arc surface. The streamline design can reduce the running resistance of the piston, so that the piston is more suitable for the light pressure working condition.
According to another embodiment of the present invention, further comprising, the piston is provided with a bearing washer at the rear portion. The bearing gasket supports the piston made of plastic materials, deformation of the piston during reciprocating motion is avoided, and sealing performance of the piston is guaranteed.
According to the utility model discloses a further embodiment, further include, set up the holding ring in the piston, the holding ring links to each other with pole portion screw thread, be provided with the metal bush between bearing washer and the holding ring. Effectively improve the joint strength of pole portion and piston, can guarantee the holistic rigidity of piston rod more effectively.
According to another embodiment of the present invention, further comprising, the bearing washer and the positioning ring are integrally formed. Further improve holistic rigidity, guarantee the performance under the pneumatic rod light pressure operating mode.
The beneficial effects of the utility model are that, change traditional pneumatic rod middle rod portion and piston detachable connected mode, the mode that adopts the rubber coating to mould plastics realizes being connected between the two, it is firm and can guarantee the size precision to connect, in addition, the piston that adopts the plastics material can effectively reduce with the interior frictional resistance of cylinder body 1, and can alleviate the dead weight by a wide margin, make the piston operation light and fast, in the operating mode of low pressure, there is not the shake, the without abnormal sound just moves reliable and stable, and rely on bearing washer, holding ring and metal bush, effectively improve the joint strength of rod portion and piston, can guarantee the holistic rigidity of piston rod more effectively.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of an embodiment of the piston rod;
FIG. 3 is a schematic view of a second embodiment of the piston rod;
FIG. 4 is a third schematic view of a piston rod embodiment;
fig. 5 is a schematic perspective view of the piston rod.
In the figure, the piston rod comprises a cylinder body 1, a cylinder body 2, a piston rod 3, a rod part 4, a piston 4-1, a guide conical surface 4-2, a sealing surface 4-3, an annular groove 4-4, a skirt part 5, a sealing ring 6, a bearing gasket 7, a positioning ring 8 and a metal lining.
Detailed Description
As shown in fig. 1, 2 and 5, the utility model discloses a structural schematic diagram, a pneumatic rod suitable for light pressure operating mode contains cylinder body 1, sliding connection piston rod 2 in the cylinder body 1, piston rod 2 contains pole portion 3 and injection moulding in the piston 4 of pole portion 3, pole portion 3 is the metal material, piston 4 is provided with direction conical surface 4-1 and sealed face 4-2, sealed face 4-2 department is provided with annular groove 4-3, annular groove 4-3 endotheca has sealing washer 5.
Sealing face 4-2 and sealing washer 5 set up, effectively improve the sealing performance of piston 4 and cylinder body 1, the direction conical surface 4-1 helps the reciprocal linear motion of piston 4, alleviate the running resistance of piston 4, in this application, change the detachable connected mode of pole portion 3 and piston 4 in traditional pneumatic rod, adopt the mode of rubber coating injection molding to realize fixed connection between the two, it is firm and can guarantee size precision to connect, in addition, piston 4 that adopts plastics material can effectively reduce with the interior frictional resistance of cylinder body 1, and can alleviate the dead weight by a wide margin, make piston 4 move light and fast, in the operating mode of low pressure, no shake, no abnormal sound and operation are reliable and stable.
According to another embodiment of the present invention, it further comprises a skirt portion 4-4 provided at the guiding conical surface 4-1 of the piston 4. As shown in fig. 3, a plurality of skirts 4-4 are provided to provide an avoiding space for the piston 4, so as to facilitate the smooth operation of the piston rod 2 in the cylinder 1.
According to another embodiment of the present invention, it further comprises at least two sets of annular grooves 4-3 of said piston 4. As shown in fig. 3, the sealing performance between the piston 4 and the cylinder 1 is further improved.
According to another embodiment of the present invention, it further comprises that the head of the piston 4 is configured as a circular arc surface. The streamlined design can reduce the running resistance of the piston 4, so that the piston 4 is more suitable for the light pressure working condition.
According to another embodiment of the present invention, it further comprises that the rear portion of the piston 4 is provided with a load bearing washer 6. The bearing washer 6 provides support for the piston 4, which is made of plastic, and helps to avoid deformation of the piston 4 during reciprocating motion and ensure the sealing performance of the piston 4.
According to the utility model discloses a further embodiment, further include, set up holding ring 7 in the piston 4, holding ring 7 links to each other with pole portion 3 screw thread, be provided with metal bush 8 between bearing ring 6 and the holding ring 7. The positioning ring 7 can effectively improve the connection strength of the rod part 3 and the piston 4, and the metal bushing 8 is supported between the bearing washer 6 and the positioning ring 7, so that the integral rigidity of the piston rod 4 can be effectively ensured.
According to another embodiment of the present invention, it further comprises that the bearing washer 6 and the positioning ring 7 are integrally formed. As shown in FIG. 4, the rigidity of the whole is further improved, and the service performance of the pneumatic rod under the light-pressure working condition is ensured.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a be suitable for pneumatic rod of light pressure operating mode, contains cylinder body (1), sliding connection piston rod (2) in cylinder body (1), characterized by, piston rod (2) contain pole portion (3) and injection moulding in piston (4) of pole portion (3), pole portion (3) are the metal material, piston (4) are provided with direction conical surface (4-1) and sealed face (4-2), sealed face (4-2) department is provided with annular groove (4-3), annular groove (4-3) endotheca has sealing washer (5).
2. The pneumatic rod suitable for light pressure working conditions according to claim 1, wherein a skirt portion (4-4) is arranged at the guiding conical surface (4-1) of the piston (4).
3. A pneumatic rod adapted to light pressure conditions, according to claim 1, wherein said piston (4) has at least two sets of annular grooves (4-3).
4. The pneumatic rod suitable for the light pressure working condition is characterized in that the head of the piston (4) is provided with a circular arc surface.
5. A pneumatic rod adapted to light pressure conditions according to any one of claims 1 to 4, wherein the piston (4) is provided with a load-bearing washer (6) at its rear end.
6. A pneumatic rod suitable for light pressure working conditions according to claim 5, characterized in that a positioning ring (7) is arranged in the piston (4), the positioning ring (7) is in threaded connection with the rod part (3), and a metal bushing (8) is arranged between the bearing washer (6) and the positioning ring (7).
7. A pneumatic rod adapted for light pressure conditions, according to claim 6, wherein said load-bearing washer (6) and positioning ring (7) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922303996.4U CN211343554U (en) | 2019-12-20 | 2019-12-20 | Pneumatic rod suitable for light pressure working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922303996.4U CN211343554U (en) | 2019-12-20 | 2019-12-20 | Pneumatic rod suitable for light pressure working condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343554U true CN211343554U (en) | 2020-08-25 |
Family
ID=72104614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922303996.4U Active CN211343554U (en) | 2019-12-20 | 2019-12-20 | Pneumatic rod suitable for light pressure working condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343554U (en) |
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2019
- 2019-12-20 CN CN201922303996.4U patent/CN211343554U/en active Active
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