CN217582429U - Piston rod mechanism for inflator - Google Patents
Piston rod mechanism for inflator Download PDFInfo
- Publication number
- CN217582429U CN217582429U CN202221281498.XU CN202221281498U CN217582429U CN 217582429 U CN217582429 U CN 217582429U CN 202221281498 U CN202221281498 U CN 202221281498U CN 217582429 U CN217582429 U CN 217582429U
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- piston
- piston rod
- bowl
- contact
- head
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Abstract
The utility model discloses a piston rod mechanism for pump, including the piston head, spring and piston bowl are established to piston head outside cover, piston bowl inboard is equipped with the piston pad, the lateral wall contact of spring one end and mounting groove, the spring other end with the piston pad contact, the piston bowl other end and piston guide pin bushing contact, the piston guide pin bushing is located the outside of piston head, piston head one end is equipped with the piston rod link, the piston rod link is equipped with the piston rod spread groove, and during the use, the piston rod is located the outside of piston rod link, the piston rod again with piston rod spread groove block is connected.
Description
Technical Field
The utility model relates to a pump field, concretely relates to piston rod mechanism for pump.
Background
The piston rod mechanism mainly comprises a piston head, an inner tube and a piston rod, wherein the piston head is arranged on the inner side of the inner tube, one end of the piston head is connected with the piston rod, the piston rod pushes the piston head to reciprocate in the inner tube, a plurality of rubber rings are sleeved on the outer side of the piston head, the rubber rings are easy to damage when the piston head reciprocates on the inner side of the inner tube for a long time, and when the rubber rings are damaged, the piston rod mechanism can cause gaps, so that the gaps can cause air leakage of the piston rod mechanism, and the main defect of the traditional technology is that air leakage of the piston rod mechanism can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem be: the spring on the outer side of the piston head can automatically compensate the worn clearance through the self-compressed pressure, and the spring props against the piston gasket of the piston bowl to move outwards when the piston bowl moves forwards to prevent the clearance from being generated.
In order to achieve the above purpose, the utility model provides a piston rod mechanism for an inflator, which comprises a piston head,
a spring and a piston bowl are sleeved on the outer side of the piston head, a piston gasket is arranged on the inner side of the piston bowl, one end of the spring is in contact with the side wall of the mounting groove, the other end of the spring is in contact with the piston gasket,
the other end of the piston bowl is contacted with a piston guide sleeve which is arranged on the outer side of the piston head,
the piston head one end is equipped with the piston rod link, the piston rod link is equipped with the piston rod spread groove, and during the use, the piston rod is located the outside of piston rod link, the piston rod again with the block of piston rod spread groove is connected.
Further, the piston head is provided with a mounting groove, and a piston ring is arranged in the mounting groove.
Further, the piston bowl orientation the inboard of piston gasket is equipped with slope limit and sharp limit, the piston gasket orientation the surface of piston bowl one end is equipped with second slope limit and second sharp limit, the second slope limit with the contact of second sharp limit prevents when making piston rod mechanism remove to take place gas leakage.
Furthermore, a sealing edge and a positioning edge are arranged on the inner side of one end, facing the piston bowl, of the piston guide sleeve, a second sealing edge and a second positioning edge are arranged on the surface, facing the piston guide sleeve, of the piston bowl, the second sealing edge is in contact with the sealing edge, and the second positioning edge is in contact with the positioning edge.
The utility model discloses a technological effect and advantage: the piston head is arranged on the inner side of the inner tube, one end of the piston head is connected with the piston rod, the piston rod pushes the piston head to reciprocate on the inner side of the inner tube, the piston head is sleeved on the outer side of the piston head due to long-term reciprocating motion on the inner side of the inner tube, the piston bowl and the piston guide sleeve are abraded to generate gaps, air leakage can occur, in order to prevent air leakage, the spring on the outer side of the piston head can automatically compensate the abraded gaps through self-compressed pressure, and when the piston bowl is pushed forwards in operation, the spring props against the piston bowl, the piston gasket moves towards the outer side, and the gaps are prevented from being generated.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the exploded structure of the present invention.
Fig. 3 is a schematic sectional view of the present invention.
Fig. 4 is a schematic diagram of the piston head structure of the present invention.
Fig. 5 is a schematic cross-sectional view of the connection between the piston head and the inner tube and the piston rod according to the present invention.
Detailed Description
As shown in fig. 1 to 5, a piston rod mechanism for a pump includes a piston head 10, the piston head 10 is provided with a mounting groove 11, and a piston ring 12 is disposed in the mounting groove 11.
The spring 20 and the piston bowl 30 are sleeved on the outer side of the piston head 10, a piston gasket 31 is arranged on the inner side of the piston bowl 30, one end of the spring 20 is in contact with the side wall of the mounting groove 11, and the other end of the spring 20 is in contact with the piston gasket 31.
Piston bowl 30 orientation the inboard of piston gasket 31 is equipped with slope limit and sharp limit, piston gasket 31 orientation the surface of piston bowl 30 one end is equipped with second slope limit and second sharp limit, the second slope limit with the contact of second sharp limit prevents when making piston rod mechanism move and takes place gas leakage.
The other end of the piston ring 30 is in contact with a piston guide 32, and the piston guide 32 is arranged outside the piston head 10.
The inner side of one end, facing the piston bowl 30, of the piston guide sleeve 32 is provided with a sealing edge and a positioning edge, the surface, facing the piston guide sleeve 32, of the piston bowl 30 is provided with a second sealing edge and a second positioning edge, the second sealing edge is in contact with the sealing edge, and the second positioning edge is in contact with the positioning edge.
Piston head 10 one end is equipped with piston rod connecting end 13, piston rod connecting end 13 is equipped with piston rod connecting groove 14, and during the use, the piston rod is located the outside of piston rod connecting end 13, the piston rod again with piston rod connecting groove 14 block is connected.
In specific implementation, the piston head 10 is arranged on the inner side of the inner tube, one end of the piston head 10 is connected with the piston rod, the piston rod pushes the piston head 10 to reciprocate on the inner side of the inner tube, the piston head 10 reciprocates on the inner side of the inner tube for a long time, the piston bowl 30 and the piston guide sleeve 32 which are sleeved on the outer side of the piston head 10 are worn to generate gaps, and the air leakage condition can occur.
Claims (4)
1. The utility model provides a piston rod mechanism for pump which characterized in that: including piston head (10), spring (20) and piston bowl (30) are established to piston head (10) outside cover, piston bowl (30) inboard is equipped with piston gasket (31), the lateral wall contact of spring (20) one end and mounting groove (11), spring (20) other end with piston gasket (31) contact, piston bowl (30) other end and piston guide pin bushing (32) contact, piston guide pin bushing (32) are located the outside of piston head (10), piston head (10) one end is equipped with piston rod link (13), piston rod link (13) are equipped with piston rod spread groove (14), and during the use, the piston rod is located the outside of piston rod link (13), the piston rod again with piston rod spread groove (14) block is connected.
2. A piston rod mechanism for an inflator according to claim 1, wherein: the piston head (10) is provided with a mounting groove (11), and a piston ring (12) is arranged in the mounting groove (11).
3. A piston rod mechanism for a pump according to claim 1, wherein: piston bowl (30) orientation the inboard of piston gasket (31) is equipped with slope limit and sharp limit, piston gasket (31) orientation the surface of piston bowl (30) one end is equipped with second slope limit and second sharp limit, the second slope limit with the contact of second sharp limit prevents when making piston rod mechanism move and takes place gas leakage.
4. A piston rod mechanism for an inflator according to claim 2, wherein: the inner side of one end, facing the piston bowl (30), of the piston guide sleeve (32) is provided with a sealing edge and a positioning edge, the surface, facing the piston guide sleeve (32), of the piston bowl (30) is provided with a second sealing edge and a second positioning edge, the second sealing edge is in contact with the sealing edge, and the second positioning edge is in contact with the positioning edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221281498.XU CN217582429U (en) | 2022-05-26 | 2022-05-26 | Piston rod mechanism for inflator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221281498.XU CN217582429U (en) | 2022-05-26 | 2022-05-26 | Piston rod mechanism for inflator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217582429U true CN217582429U (en) | 2022-10-14 |
Family
ID=83555225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221281498.XU Active CN217582429U (en) | 2022-05-26 | 2022-05-26 | Piston rod mechanism for inflator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217582429U (en) |
-
2022
- 2022-05-26 CN CN202221281498.XU patent/CN217582429U/en active Active
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