CN201198446Y - Claw type jack - Google Patents
Claw type jack Download PDFInfo
- Publication number
- CN201198446Y CN201198446Y CNU2008200574557U CN200820057455U CN201198446Y CN 201198446 Y CN201198446 Y CN 201198446Y CN U2008200574557 U CNU2008200574557 U CN U2008200574557U CN 200820057455 U CN200820057455 U CN 200820057455U CN 201198446 Y CN201198446 Y CN 201198446Y
- Authority
- CN
- China
- Prior art keywords
- pawl
- jack
- claw
- carrying
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000000078 claw Anatomy 0.000 title claims abstract description 23
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009993 protective function Effects 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model provides a claw jack, which comprises a base, a cylinder, a piston, a small pump and a pressing handle; wherein, a lifting claw is fixed on the top of the piston; tension springs are mounted on both sides of the lifting claw; and the other end of each tension spring is connected with the base. The tension springs are used to rapidly reset the claw jack. A guide slot is arranged in the middle of the lifting claw; a guide plate is mounted on the cylinder and fastened in the guide slot; and thereby, even if load bearing is too high, the lifting claw cannot be twisted. The utility model resolves the problem that a jack cannot be used in a small space, thus resolving the defect of the prior art. The claw jack, which has the advantages of unique design, novel structure and good lifting effect, not only can utilize the top to conduct jacking but also can utilize the lifting claw to conduct lifting. The claw jack can be applied in various cases, in particular used to lift an object in a narrow space.
Description
Technical field
The utility model relates to a kind of pawl formula jack.
Background technology
The jacking function that jack commonly used possesses all is to act on the jack top, and during less than the jack height, jack has just lost effect in the locus.All very little such as general lathe lower margin space, the trouble that just seems when wanting to move machine equipment very also often needs earlier just can to insert the lathe belly to the lathe certain altitude of slinging to the fork truck pin fully when employing fork truck.The invention considers to give full play to the effect of jack just, even under very little height space condition, and also jack-up object like a cork.
Summary of the invention
The purpose of this utility model provides a kind of pawl formula jack, solved the problem that jack can't be applied to little space, remedied the deficiencies in the prior art.
A kind of pawl formula jack of the present utility model comprises base, cylinder body, piston, little pump and presses hand, is fixed with at piston head and carries pawl, carries the pawl both sides extension spring is installed, and the extension spring other end is connected with base.Extension spring is used for resetting fast of jack.Have guide groove in the middle of carrying pawl, a guide plate is housed on the cylinder body, described guide plate is stuck in the guide groove, and when carrying was bigger than normal, being unlikely to carry pawl can be twisted.
As optimized technical scheme:
Aforesaid a kind of pawl formula jack wherein, is installed a pressure-relief valve on the oil return line of described jack base, excessive when carrying, when oil pressure is too high, can play overload protective function, and jack is not damaged.
Aforesaid a kind of pawl formula jack, wherein, described cylinder body and base adopt spiral marking connection or welding manner.
Aforesaid a kind of pawl formula jack wherein, is welded with carrying handle on the described cylinder body, makes things convenient for moving of jack.
Aforesaid a kind of pawl formula jack, wherein, the described pawl of carrying comprises top and two service portions of claw.
Aforesaid a kind of pawl formula jack, wherein, the described pawl top of carrying is a plane.
Aforesaid a kind of pawl formula jack, wherein, the described plane of action of carrying the pawl claw flushes with base upper surface, helps jack and is inserted into the object bottom.
Aforesaid a kind of pawl formula jack, wherein, the described pawl claw of carrying is a plane or forked.
Aforesaid a kind of pawl formula jack, wherein, the described pawl claw plane of action of carrying has anti-slop serrations, makes the castering action of jack more effective.
Pawl formula jack of the present utility model is the lifting gear according to hydraulic principle work, it as principle is: during rising: screw the oil return valve rod, pressing is pressed hand, pressing when handing up on the pump mind-set, steel ball under the pump housing is picked up, simultaneously power fluid is sucked in the pump housing, press hand when pressing down, steel ball sealing under the pump housing, power fluid can only pass through oil hole when pressure was arranged, steel ball is opened and is entered in the oil cylinder under the oil cylinder, and power fluid is with piston rod jack-up.During decline: unscrew the oil return valve rod the interior steel ball of valve rod is opened, in-oil cylinder have the power fluid of pressure to get back in the fuel tank by oil hole, makes under the piston and roll back the home position.Pawl formula jack also is equipped with pressure-relief valve and plays overload protection function.
The beneficial effects of the utility model are:
A kind of pawl formula jack of the present utility model, design is unique, novel structure; Promote effectively, the jacking of both available top also can promote with carrying pawl; Be applicable to various occasions, especially be suitable for small space and raise object.
Description of drawings
Fig. 1 is the structural representation of a kind of pawl formula of the utility model jack
Fig. 2 is the cross section structure scheme drawing of a kind of pawl formula of the utility model jack
Wherein 1 is that base 2 is that little pump 3 is that to press 4 are cylinder bodies to hand
The 5th, carrying handle 6 is that extension spring 7 is that piston 8 is to carry pawl
The 9th, carrying pawl claw 10 is that top cap 11 is that the little pump pump housing 12 is little pump pump hearts
The 13rd, little pump seal 14 is that oil return valve rod 15 is plug cocks
The 16th, power fluid 17 is that operating cylinder 18 is that guide plate 19 is pressure-relief valves
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.
As shown in Figure 1, it is a kind of pawl formula jack of the present utility model, comprise base 1, cylinder body 4, piston 7; little pump 2 and press hand 3; cylinder body 4 upper cap crown caps 10; plug cock 15 is installed at cylinder body 4 middle parts; operating cylinder 17 is arranged in the cylinder body 4; contain power fluid 16 between cylinder body 4 and the operating cylinder 17; piston 7 is in operating cylinder 17, and little pump 2 is by the little pump pump housing 11; compositions such as the little pump pump heart 12 and little pump seal 13, and an oil return valve rod 14 also is installed on the base 1; cylinder body 4 and base 1 adopt spiral marking connection; be fixed with at piston 7 tops and carry pawl 8, carry pawl 8 both sides extension spring 6 is installed, extension spring 6 other ends are connected with base 1.Extension spring 6 is used for resetting fast of jack; Have guide groove in the middle of carrying pawl 8, a guide plate 18 is housed on the cylinder body 4, described guide plate 18 is stuck in the guide groove, and when carrying was bigger than normal, being unlikely to carry pawl 8 can be twisted; Be welded with carrying handle 5 on the cylinder body 4, make things convenient for moving of jack, carry pawl 8 and comprise top and 9 two service portions of claw, carrying pawl 8 tops is planes, put forward the plane of action and base 1 upper surface flush of pawl claw 9, help jack and be inserted into the object bottom, carrying pawl claw 9 is planes, carrying pawl claw 9 plane of action has anti-slop serrations, makes the castering action of jack more effective.One pressure-relief valve 19 is installed on the oil return line of jack base 1, excessive when carrying, when oil pressure is too high, can play overload protective function, jack is not damaged.
Through evidence, the utility model has solved the problem that jack can't be applied to little space really, has remedied the deficiencies in the prior art.
Claims (9)
1. pawl formula jack, comprise base, cylinder body, piston, little pump and press hand, it is characterized in that: be fixed with at piston head and carry pawl, carry the pawl both sides extension spring is installed, the extension spring other end is connected with base, have guide groove in the middle of carrying pawl, a guide plate is housed on the cylinder body, described guide plate is stuck in the guide groove.
2. a kind of pawl formula jack as claimed in claim 1 is characterized in that installing on the oil return line on the described jack base pressure-relief valve.
3. a kind of pawl formula jack as claimed in claim 1 is characterized in that described cylinder body and base adopt spiral marking connection or welding manner.
4. a kind of pawl formula jack as claimed in claim 1 is characterized in that being welded with carrying handle on the described cylinder body.
5. a kind of pawl formula jack as claimed in claim 1 is characterized in that the described pawl of carrying comprises top and two service portions of claw.
6. as claim 1 or 4 described a kind of pawl formula jacks, it is characterized in that the described pawl top of carrying is a plane.
7. as claim 1 or 4 described a kind of pawl formula jacks, it is characterized in that the described plane of action of carrying the pawl claw flushes with base upper surface.
8. a kind of pawl formula jack as claimed in claim 1 is characterized in that the described pawl claw of carrying is a plane or forked.
9. a kind of pawl formula jack as claimed in claim 1 is characterized in that the described pawl claw plane of action of carrying has anti-slop serrations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200574557U CN201198446Y (en) | 2008-04-18 | 2008-04-18 | Claw type jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200574557U CN201198446Y (en) | 2008-04-18 | 2008-04-18 | Claw type jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198446Y true CN201198446Y (en) | 2009-02-25 |
Family
ID=40449604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200574557U Expired - Fee Related CN201198446Y (en) | 2008-04-18 | 2008-04-18 | Claw type jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198446Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830410A (en) * | 2010-05-21 | 2010-09-15 | 华东交通大学 | Portable ultralow space jack |
| CN104310266A (en) * | 2014-11-19 | 2015-01-28 | 杭州富阳泳富机械有限公司 | Novel hydraulic claw jack |
| CN107253684A (en) * | 2017-07-31 | 2017-10-17 | 苏州润贤峰汽车部件有限公司 | A kind of automobile-used foot-operated jack |
| CN110700866A (en) * | 2019-11-07 | 2020-01-17 | 徐州众信矿业科技有限公司 | Mining hydraulic prop |
| CN112960583A (en) * | 2021-03-19 | 2021-06-15 | 中铁大桥局集团有限公司 | Device for relieving pressure of jack and jack system |
-
2008
- 2008-04-18 CN CNU2008200574557U patent/CN201198446Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830410A (en) * | 2010-05-21 | 2010-09-15 | 华东交通大学 | Portable ultralow space jack |
| CN101830410B (en) * | 2010-05-21 | 2013-01-02 | 华东交通大学 | Portable ultralow space jack |
| CN104310266A (en) * | 2014-11-19 | 2015-01-28 | 杭州富阳泳富机械有限公司 | Novel hydraulic claw jack |
| CN104310266B (en) * | 2014-11-19 | 2017-07-14 | 杭州富阳泳富机械有限公司 | A kind of novel hydraulic claw jack |
| CN107253684A (en) * | 2017-07-31 | 2017-10-17 | 苏州润贤峰汽车部件有限公司 | A kind of automobile-used foot-operated jack |
| CN110700866A (en) * | 2019-11-07 | 2020-01-17 | 徐州众信矿业科技有限公司 | Mining hydraulic prop |
| CN112960583A (en) * | 2021-03-19 | 2021-06-15 | 中铁大桥局集团有限公司 | Device for relieving pressure of jack and jack system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20110418 |