CN203306982U - Manual oil pump for hydraulic jack - Google Patents
Manual oil pump for hydraulic jack Download PDFInfo
- Publication number
- CN203306982U CN203306982U CN2013204096574U CN201320409657U CN203306982U CN 203306982 U CN203306982 U CN 203306982U CN 2013204096574 U CN2013204096574 U CN 2013204096574U CN 201320409657 U CN201320409657 U CN 201320409657U CN 203306982 U CN203306982 U CN 203306982U
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- CN
- China
- Prior art keywords
- pump
- pump core
- seal ring
- shaped seal
- ring
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- Expired - Fee Related
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Abstract
The utility model discloses a manual oil pump for a hydraulic jack. The manual oil pump comprises a pump body and a pump core, wherein the upper end of the pump body is provided with a pump core installation hole, an O-shaped seal ring, a nylon baffle ring, a pump sleeve and a Y-shaped seal ring are sequentially arranged between the pump core installation hole and the pump core from bottom to top, the O-shaped seal ring, the nylon baffle ring, the pump sleeve and the Y-shaped seal ring are respectively sleeved with the lower end of the pump core, and the lower end of the pump core is inserted into the pump core installation hole. According to the technical scheme, the O-shaped seal ring, the nylon baffle ring, the pump sleeve and the Y-shaped seal ring are sequentially arranged between the pump core installation hole and the pump core from bottom to top; both the O-shaped seal ring and the Y-shaped seal ring are adopted, so that the sealing property is good; the Y-shaped seal ring has excellent pressure resistance and wear resistance; the manual oil pump is low in cost, stable to operate and long in service life.
Description
Technical field
The utility model relates to technical field of jacks, is specifically related to a kind of oil jack hand oil pump.
Background technology
The seal ring that the pump core of existing oil jack hand oil pump is used is O RunddichtringO and back-up ring, and the O RunddichtringO is expensive, and wear-resisting resistance to pressure is poor, and due to the continuous up-and-down movement of pump core, the O RunddichtringO easily weares and teares, and service life is short.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of reasonable in design, seal ring resistance to abrasion good, working stability, and cost is low, the oil jack hand oil pump of long service life.
For achieving the above object, the utility model provides following technical scheme: a kind of oil jack hand oil pump, comprise the pump housing and pump core, described pump housing upper end is provided with pump core mounting hole, between described pump core mounting hole and pump core, be disposed with from the bottom up O RunddichtringO, nylon back-up ring, pump block and y-type seal ring, described O RunddichtringO, nylon back-up ring, pump block and y-type seal ring are socketed with pump core lower end respectively, and insert in pump core mounting hole described pump core lower end.
By adopting technique scheme, between pump core mounting hole and pump core, be disposed with from the bottom up O RunddichtringO, nylon back-up ring, pump block and y-type seal ring, O RunddichtringO and y-type seal ring have been used simultaneously, good seal performance, the withstand voltage resistance to abrasion of y-type seal ring is good, cost is low, working stability, long service life.
The utility model further is provided with: described pump core upper end one side is provided with U-shaped open slot, and corresponding open slot is provided with pump core pin, is provided with and presses hand near pump core upper end, and described pump core pin inserts in open slot, makes the pump core and press hand hinged by pump core pin.By this setting, the pump core is with to press hand easy to connect, reliable.
The utility model also further is provided with: described press the hand front end and the pump housing hinged, press the hand rear end handle that has been threaded, described handle rear end is socketed with taper knob.By this setting, the utility model structure is more reasonable, works more reliable.
The utility model has the advantages that: compared with prior art, the setting of the utility model structure is more reasonable, between pump core mounting hole and pump core, be disposed with from the bottom up O RunddichtringO, nylon back-up ring, pump block and y-type seal ring, O RunddichtringO and y-type seal ring have been used simultaneously, good seal performance, the withstand voltage resistance to abrasion of y-type seal ring is good, and cost is low, working stability, long service life.
The utility model is described in further detail below in conjunction with Figure of description and specific embodiment.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the exploded view of the utility model embodiment.
The specific embodiment
Referring to Fig. 1 and Fig. 2, the disclosed a kind of oil jack hand oil pump of the utility model, comprise the pump housing 1 and pump core 2, the described pump housing 1 upper end is provided with pump core mounting hole 11, between described pump core mounting hole 11 and pump core 2, be disposed with from the bottom up O RunddichtringO 3, nylon back-up ring 4, pump block 5 and y-type seal ring 6, described O RunddichtringO 3, nylon back-up ring 4, pump block 5 and y-type seal ring 6 are socketed with pump core 2 lower ends respectively, and insert in pump core mounting holes 11 described pump core 2 lower ends.
For making the utility model structure more reasonable, as preferably, described pump core 2 upper end one sides of the present embodiment are provided with U-shaped open slot 21, corresponding open slot 21 is provided with pump core pin 7, near pump core 2 upper ends, be provided with and press hand 8, described pump core pin 7 inserts in open slot 21, makes pump core 2 and press hand 8 hinged by pump core pin 7.
Described press hand 8 front ends and the pump housing 1 hinged, press the hand 8 rear ends handle 9 that has been threaded, described handle 9 rear ends are socketed with taper knob 10.
The utility model structure arranges rationally, between pump core mounting hole and pump core, be disposed with from the bottom up O RunddichtringO, nylon back-up ring, pump block and y-type seal ring, O RunddichtringO and y-type seal ring have been used simultaneously, good seal performance, the withstand voltage resistance to abrasion of y-type seal ring is good, cost is low, working stability, long service life.
Above-described embodiment is to specific descriptions of the present utility model; only for the utility model is further described; can not be interpreted as the restriction to the utility model protection domain, within the technician of this area makes some nonessential improvement according to the content of above-mentioned utility model to the utility model and adjusts and all fall into protection domain of the present utility model.
Claims (3)
1. oil jack hand oil pump, comprise the pump housing (1) and pump core (2), it is characterized in that: the described pump housing (1) upper end is provided with pump core mounting hole (11), between described pump core mounting hole (11) and pump core (2), be disposed with from the bottom up O RunddichtringO (3), nylon back-up ring (4), pump block (5) and y-type seal ring (6), described O RunddichtringO (3), nylon back-up ring (4), pump block (5) and y-type seal ring (6) are socketed with pump core (2) lower end respectively, and insert in pump core mounting hole (11) described pump core (2) lower end.
2. a kind of oil jack hand oil pump according to claim 1, it is characterized in that: described pump core (2) upper end one side is provided with U-shaped open slot (21), corresponding open slot (21) is provided with pump core pin (7), near pump core (2) upper end, be provided with and press hand (8), described pump core pin (7) inserts in open slot (21), makes pump core (2) and press hand (8) hinged by pump core pin (7).
3. a kind of oil jack hand oil pump according to claim 2, it is characterized in that: describedly press hand (8) front end and the pump housing (1) is hinged, press hand (8) the rear end handle (9) that has been threaded, described handle (9) rear end is socketed with taper knob (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204096574U CN203306982U (en) | 2013-07-02 | 2013-07-02 | Manual oil pump for hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204096574U CN203306982U (en) | 2013-07-02 | 2013-07-02 | Manual oil pump for hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203306982U true CN203306982U (en) | 2013-11-27 |
Family
ID=49613204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204096574U Expired - Fee Related CN203306982U (en) | 2013-07-02 | 2013-07-02 | Manual oil pump for hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203306982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342308A (en) * | 2013-07-02 | 2013-10-09 | 平湖市通力机械有限公司 | Manual oil pump of oil jack |
-
2013
- 2013-07-02 CN CN2013204096574U patent/CN203306982U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342308A (en) * | 2013-07-02 | 2013-10-09 | 平湖市通力机械有限公司 | Manual oil pump of oil jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20140702 |
|
| EXPY | Termination of patent right or utility model |