CN204778581U - Jack mechanical type stop device - Google Patents
Jack mechanical type stop device Download PDFInfo
- Publication number
- CN204778581U CN204778581U CN201520455216.7U CN201520455216U CN204778581U CN 204778581 U CN204778581 U CN 204778581U CN 201520455216 U CN201520455216 U CN 201520455216U CN 204778581 U CN204778581 U CN 204778581U
- Authority
- CN
- China
- Prior art keywords
- hole
- spring
- fore
- annular arrangement
- shutoff
- 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
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Abstract
The utility model provides a jack mechanical type stop device, includes fore -set, spreader, firing pin, spring, steel ball, spring shutoff and sealing device, is provided with in the fore -set and places the first through -hole of spreader is provided with between bottom to the first through -hole of fore -set and places the second through -hole of firing pin and the third through -hole of placing steel ball and spring, second through -hole and third through -hole link up each other, the second through -hole and first through -hole link up, is provided with the fourth through -hole in the below of third through -hole, the third through -hole is the round platform type, and the spring is cone spring, sets up in the third through -hole cone spring, the spring shutoff is passed through threaded connection and is set up in the fourth through -hole, and the center of spring shutoff is provided with the regular polygon through -hole. The utility model discloses installation time is saved in operation easy to assemble, has improved production efficiency, , the installation can operate by disect insertion allen key when dismantling, and it is very convenient, the sealing device nature leaned on is high, has improved the durability.
Description
Technical field
The utility model relates to a kind of jack mechanical limiting location device.
Background technology
Jack lifting altitude need be strictly controlled, the lifting altitude of jack is the important indicator ensureing jack trouble free service, existing position-limited trough and spacing hole's pattern carry out emptying, when inhibiting device works, hydraulic oil can cause hydraulic oil sputter from inhibiting device and go out under the condition be under pressure, and causes the damage of sealing arrangement.
Chinese patent Authorization Notice No. CN201002949Y discloses a kind of welding type jack, this jack is at bottom design snap ring, piston spring, spacing ball and the strut bar of piston rod, and spacing ball, piston spring and snap ring be arranged in a through hole of bottom.At present, increasing jack producer starts to adopt this design, but there is following problem when processing and using in this design: 1, install inconvenience, aligned through holes is not easy when putting cylindrical piston spring and spacing ball in through-holes, and snap ring put into after need riveted joint, bother very much, be inconvenient to dismantle.2, need offering longer through hole, ensure the axial stretching space of cylindrical piston spring.3, sealing arrangement easily damages, and especially when environment for use is severe, fracture easily appears in piston 18, causes leakage of oil.
Utility model content
For the problems referred to above, the utility model provides a kind of easy installation and removal quick, the jack mechanical limiting location device that sealing arrangement reliability is high.
The utility model solves the problems of the technologies described above taked technical scheme: a kind of jack mechanical limiting location device, comprise fore-set, spreader, striker, spring, steel ball, spring shutoff and sealing arrangement, the first through hole placing described spreader is provided with in described fore-set, the bottom of described fore-set is provided with the second through hole placing described striker and the third through-hole placing described steel ball and spring between described first through hole, described second through hole and third through-hole mutually through, described second through hole and described first through hole through, it is characterized in that, the below of described third through-hole is provided with fourth hole,
Described third through-hole is circular platform type, and described spring is cone-shaped spring;
Described spring shutoff is threaded connection and is arranged in described fourth hole, and the center of described spring shutoff is provided with equilateral polygon through hole.
Further, described sealing arrangement comprise be nested with from top to bottom bottom described fore-set iron pad, strengthen nylon cushion, nylon cushion and packing seal.
Further, the bottom of described fore-set is provided with the first annular arrangement gear platform, the second annular arrangement gear platform and toroidal cavity, described iron pad is positioned on described first annular arrangement gear platform, described reinforcement nylon cushion is positioned on iron pad, and the thickness sum of iron pad and reinforcement nylon cushion equals the height between the first annular arrangement gear platform to the second annular arrangement gear platform; Described nylon cushion is positioned on the second annular arrangement gear platform, and described packing seal is positioned on described nylon cushion, and the inner side of packing seal is positioned at described toroidal cavity.
Preferably, described packing seal is Y grommet type seal.
Preferably, described equilateral polygon through hole is regular hexagon.
The beneficial effects of the utility model are:
It adopts truncated cone-shaped third through-hole and cone-shaped spring, facilitates fitting operation, saves the set-up time, improve production efficiency; Spring shutoff adopts and is threaded, and arranges equilateral polygon through hole in spring shutoff, directly can insert polygon spanner operate when installing/dismounting, very convenient; The design reliability of sealing arrangement is high, when using under the rugged environments such as mine, will sealing arrangement be caused because pressure is excessive to damage, improve durability.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is part preferred embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is integral structure schematic diagram of the present utility model;
Fig. 2 is spring shutoff schematic top plan view of the present utility model.
In figure, 1 fore-set, 11 first through holes, 12 second through holes, 13 third through-holes, 14 fourth holes, 15 first annular arrangement gear platforms, 16 second annular arrangement gear platforms, 17 toroidal cavities, 2 spreaders, 3 strikers, 4 springs, 5 steel balls, 6 spring shutoff, 61 equilateral polygon through holes, 7 iron pads, 8 strengthen nylon cushion, 9 nylon cushions, 10 packing seals.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail:
As depicted in figs. 1 and 2, this jack mechanical limiting location device comprises fore-set 1, spreader 2, striker 3, spring 4, steel ball 5, spring shutoff 6 and sealing arrangement.Traverse in the bottom of described fore-set 1 and withstand the first through hole 11 that 1 inside is provided with the described spreader 2 of placement, the diameter of described first through hole 11 is greater than the diameter of spreader 2.Be disposed with to described first through hole 11 from the bottom of described fore-set 1 and place described spring shutoff 6 fourth hole 14, place the third through-hole 13 of described steel ball 5 and spring, place the second through hole 12 of described striker 3, described fourth hole 14, third through-hole 13 and the second through hole 12 are coaxial and through, the largest diameter of fourth hole, described third through-hole 13 is circular platform type, and the diameter of the second through hole 12 is less than the diameter of third through-hole 13 upper table surface.Described second through hole 12 is through with described first through hole 11.Described spring 4 is cone-shaped spring, puts into described cone-shaped spring after first placing described steel ball 5 in described third through-hole 13 again.The lower end inside of fourth hole 14 is provided with negative thread, described spring shutoff 6 is provided with outside thread, spring shutoff 6 is threaded connection and is arranged in described fourth hole 14, the center of described spring shutoff 6 is provided with equilateral polygon through hole 61, preferably, described equilateral polygon through hole is regular hexagon, and inner-hexagon spanner can be adopted like this spring shutoff 6 to be fixed in fourth hole 14.
The bottom of fore-set 1 is provided with the first annular arrangement gear platform 15, second annular arrangement gear platform 16 and toroidal cavity 17.In order to improve reliability and the compressive property of sealing arrangement, further, described sealing arrangement comprise be nested with from top to bottom bottom described fore-set 1 iron pad 7, strengthen nylon cushion 8, nylon cushion 9 and packing seal 10.Iron pad 7 is blocked by the first annular arrangement gear platform 15, and then is nested with reinforcement nylon cushion 8, and the thickness sum of iron pad 7 and reinforcement nylon cushion 8 equals the height between the first annular arrangement gear platform 15 to the second annular arrangement gear platform 16.And then being nested with nylon cushion 9, nylon cushion 9 is blocked by the second annular arrangement gear platform 16, then is inserted in packing seal 10, and the inner side of packing seal 10 just in time snaps in toroidal cavity 17.Preferably, described packing seal 10 is Y grommet type seal, ensure that leak tightness.
The above has made detailed description to preferred implementation of the present utility model and embodiment by reference to the accompanying drawings; but the utility model is not limited to the above-described embodiment and examples; for those skilled in the art; without departing from the concept of the premise utility; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (5)
1. a jack mechanical limiting location device, comprise fore-set, spreader, striker, spring, steel ball, spring shutoff and sealing arrangement, the first through hole placing described spreader is provided with in described fore-set, the bottom of described fore-set is provided with the second through hole placing described striker and the third through-hole placing described steel ball and spring between described first through hole, described second through hole and third through-hole mutually through, described second through hole and described first through hole through, it is characterized in that, the below of described third through-hole is provided with fourth hole;
Described third through-hole is circular platform type, and described spring is cone-shaped spring;
Described spring shutoff is threaded connection and is arranged in described fourth hole, and the center of described spring shutoff is provided with equilateral polygon through hole.
2. jack mechanical limiting location device according to claim 1, is characterized in that, described sealing arrangement comprise be nested with from top to bottom bottom described fore-set iron pad, strengthen nylon cushion, nylon cushion and packing seal.
3. jack mechanical limiting location device according to claim 2, it is characterized in that, the bottom of described fore-set is provided with the first annular arrangement gear platform, the second annular arrangement gear platform and toroidal cavity, described iron pad is positioned on described first annular arrangement gear platform, described reinforcement nylon cushion is positioned on iron pad, and the thickness sum of iron pad and reinforcement nylon cushion equals the height between the first annular arrangement gear platform to the second annular arrangement gear platform; Described nylon cushion is positioned on the second annular arrangement gear platform, and described packing seal is positioned on described nylon cushion, and the inner side of packing seal is positioned at described toroidal cavity.
4. the jack mechanical limiting location device according to Claims 2 or 3, is characterized in that, described packing seal is Y grommet type seal.
5. jack mechanical limiting location device according to claim 1, is characterized in that, described equilateral polygon through hole is regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520455216.7U CN204778581U (en) | 2015-06-29 | 2015-06-29 | Jack mechanical type stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520455216.7U CN204778581U (en) | 2015-06-29 | 2015-06-29 | Jack mechanical type stop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204778581U true CN204778581U (en) | 2015-11-18 |
Family
ID=54518673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520455216.7U Expired - Fee Related CN204778581U (en) | 2015-06-29 | 2015-06-29 | Jack mechanical type stop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204778581U (en) |
-
2015
- 2015-06-29 CN CN201520455216.7U patent/CN204778581U/en not_active Expired - Fee Related
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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: 20151118 Termination date: 20170629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |