CN204265388U - A kind of hydraulic jack - Google Patents
A kind of hydraulic jack Download PDFInfo
- Publication number
- CN204265388U CN204265388U CN201420694031.7U CN201420694031U CN204265388U CN 204265388 U CN204265388 U CN 204265388U CN 201420694031 U CN201420694031 U CN 201420694031U CN 204265388 U CN204265388 U CN 204265388U
- Authority
- CN
- China
- Prior art keywords
- base
- jack
- oil return
- return switch
- actuating cylinder
- 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 relates to a kind of hydraulic jack, comprises base, hydraulic actuating cylinder and actuating device, and base is that precision cast forms, and the thickness of base is 25 ~ 40mm, and the position at four angles of base is equipped with mounting hole, and hydraulic actuating cylinder is arranged on the center of base; The side of base is provided with oil return switch, and this oil return switch comprises spool and hand-screw screw capping, and hydraulic actuating cylinder is provided with solid piston rod.The utility model arranges mounting hole on base, jack can be arranged on lathe, break away from the dependence of jack pair landform; The base thickness of jack of the present utility model reaches 25 ~ 40mm, substantially exceeds general jack base thickness, thus more firm; The spool of oil return switch arranges hand-screw screw capping, and on the peripheral curved surface of hand-screw screw capping, arranges increasing rub line with increasing friction force, people manually can turn oil return switch, convenient and swift; Piston rod is set to pole spar, its intensity is greatly strengthened, heavier weight can be supported.
Description
Technical field
The utility model relates to a kind of jack, particularly a kind of hydraulic jack.
Background technology
Hydraulic jack, also known as oil jack, is that a kind of plunger or hydraulic actuating cylinder of adopting lifts the jack of part as rigid top.Because its have simple structure, lightweight, be easy to carry, the feature of conveniently moving, is widely used in hoisting operation.General hydraulic jack is primarily of main portion compositions such as hydraulic actuating cylinder, crank, piston rod, shoe cream room, oil pump, oil return switches.During work, as long as back and forth pull crank, make hand oil pump constantly to force feed in hydraulic actuating cylinder, due to constantly increasing of oil pressure in hydraulic actuating cylinder, just force the weight upward movement together above piston rod and piston rod.Open oil return switch, the high pressure oil in hydraulic actuating cylinder just flows back to shoe cream room, then weight and piston rod also just together with fall.
When machine tooling, after sometimes needing to withstand the work material such as substrate or cold-reduced sheet with jack, it is being processed further, at this moment just needing jack to be fixed on lathe.And first, common oil jack is only suitable for working on level land, the environmental conditions of machine tooling can not be adapted to.Secondly, common hydraulic jack generally uses hollow piston rod to reduce costs, can not the very large object of jack-up quality, even if or jack-up weight also easily there is the situation that piston rod is impaired.Again, the oil return switch of existing hydraulic jack is only the spool of one end with through hole, needs just can turn by the through hole of instrument through spool, very inconvenient.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and provides a kind of reasonable in design, can be fixed on lathe, adapts to the hydraulic jack of lathe processing conditions.In addition, this hydraulic jack also has the following advantages: 1, and oil return switch can manually turn, convenient and swift; 2, piston rod is solid piston bar, has very high strength.
The technical scheme in the invention for solving the above technical problem is:
A kind of hydraulic jack, comprise base, hydraulic actuating cylinder and actuating device, described base is that precision cast forms, and the thickness of base is 25 ~ 40mm, and the position at four angles of base is equipped with mounting hole, and hydraulic actuating cylinder is arranged on the center of base; The side of described base is provided with oil return switch, and this oil return switch comprises spool and hand-screw screw capping, and described hydraulic actuating cylinder is provided with solid piston rod.The utility model arranges mounting hole on base, jack can be arranged on lathe, break away from the dependence of jack pair landform; The base thickness of jack of the present utility model reaches 25 ~ 40mm, substantially exceeds general jack base thickness, thus more firm; The spool of oil return switch arranges hand-screw screw capping, and increasing is set on the peripheral curved surface of hand-screw screw capping rubs line with increasing friction force, make people manually can turn oil return switch, convenient and swift; By piston rod is set to pole spar, its intensity is greatly strengthened, heavier weight can be supported.
As preferably, described actuating device comprises cylinder, pillar stiffener and wedge; Described pillar stiffener and cylinder homonymy are arranged, and pillar stiffener is fixed on base; Depression bar is provided with in cylinder; One end and the pillar stiffener of described wedge are hinged, and the other end is fixedly connected with depression bar upper end.By wedge compressing depression bar constantly to force feed in hydraulic actuating cylinder, due to constantly increasing of oil pressure in hydraulic actuating cylinder, just force piston rod upward movement, thus jack-up weight.
As preferably, described wedge is provided with handle grip, described handle grip is hollow cylinder steel pipe.Like this, enter steel pipe or wooden stick just can form crank in handle grip interpolation, back and forth pull crank, piston rod jack-up weight can be made.
As preferably, described base and hydraulic actuating cylinder are integrated casting and form.
Conveniently M/C oil return switch, as preferably, described hand-screw screw capping is cylindrical, and the peripheral region of hand-screw screw capping is provided with increasing and rubs line
The utility model compared with prior art, has the following advantages and effect: 1, base arranges mounting hole, jack can be arranged on lathe, break away from the dependence of jack pair landform; 2, the spool of oil return switch arranges hand-screw screw capping, and increasing is set on the peripheral curved surface of hand-screw screw capping rubs line with increasing friction force, make people manually can turn oil return switch, convenient and swift; 3, by piston rod is set to pole spar, its intensity is greatly strengthened, heavier weight can be supported.
Accompanying drawing explanation
Fig. 1 is the structural representation of oil jack.
Fig. 2 is the birds-eye view of oil jack.
Fig. 3 is the view of oil jack actuating device one side.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
A kind of oil jack as shown in FIG. 1 to 3, comprises base 1, hydraulic actuating cylinder 2 and actuating device 3, and wherein base 1 and hydraulic actuating cylinder 2 are integrated casting and form, very firmly.Described base 1 is roughly in square shape, the thickness of base 1 is 25 ~ 40mm, and base 1 forms for precision cast, the position at four angles of base 1 is equipped with mounting hole 4, by arranging mounting hole 4 on base 1, jack can be arranged on lathe, break away from the dependence of jack pair landform.Hydraulic actuating cylinder 2 is arranged on the center of base 1, makes whole jack more stable like this.The side of described base 1 is provided with oil return switch 5, and this oil return switch 5 comprises spool 6 and hand-screw screw capping 7, and described hand-screw screw capping 7 is cylindrical, and the peripheral region of hand-screw screw capping 7 is evenly provided with increasing and rubs line.The spool 6 of oil return switch 5 arranges hand-screw screw capping 7, and increasing is set on the peripheral curved surface of hand-screw screw capping 7 rubs line with increasing friction force, make people manually can turn oil return switch 5, convenient and swift.Described hydraulic actuating cylinder 2 is provided with solid piston rod 8, by piston rod 8 is set to pole spar, its intensity is greatly strengthened, can support heavier weight.
Actuating device 3 comprises cylinder 9, pillar stiffener 10 and wedge 11; Described pillar stiffener 10 is arranged with cylinder 9 homonymy, and pillar stiffener 10 is fixed on base 1; Depression bar 12 is provided with in cylinder 9; One end and the pillar stiffener 10 of described wedge 11 are hinged, and the other end is fixedly connected with depression bar 12 upper end.Described wedge 11 is provided with handle grip 13, and described handle grip 13 is hollow cylinder steel pipe.
During use, enter handle in handle grip 13 interpolation, back and forth pull handle, constantly to force feed in hydraulic actuating cylinder 2, due to constantly increasing of oil pressure in hydraulic actuating cylinder 2, just force the weight upward movement together above piston rod 8 and piston rod 8.Open oil return switch 5, oil pressure in hydraulic actuating cylinder 8 declines, then weight and piston rod also just together with fall.
Claims (5)
1. a hydraulic jack, comprises base, hydraulic actuating cylinder and actuating device, it is characterized in that: described base is that precision cast forms, and the thickness of base is 25 ~ 40mm, and the position at four angles of base is equipped with mounting hole, and hydraulic actuating cylinder is arranged on the center of base; The side of described base is provided with oil return switch, and this oil return switch comprises spool and hand-screw screw capping, and described hydraulic actuating cylinder is provided with solid piston rod.
2. a kind of hydraulic jack according to claim 1, is characterized in that: described actuating device comprises cylinder, pillar stiffener and wedge; Described pillar stiffener and cylinder homonymy are arranged, and pillar stiffener is fixed on base; Depression bar is provided with in cylinder; One end and the pillar stiffener of described wedge are hinged, and the other end is fixedly connected with depression bar upper end.
3. a kind of hydraulic jack according to claim 2, is characterized in that: described wedge is provided with handle grip, described handle grip is hollow cylinder steel pipe.
4. a kind of hydraulic jack according to claim 1, is characterized in that: described base and hydraulic actuating cylinder are integrated casting and form.
5. a kind of hydraulic jack according to claim 1, is characterized in that: described hand-screw screw capping is cylindrical, and the peripheral region of hand-screw screw capping is provided with increasing and rubs line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694031.7U CN204265388U (en) | 2014-11-18 | 2014-11-18 | A kind of hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694031.7U CN204265388U (en) | 2014-11-18 | 2014-11-18 | A kind of hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204265388U true CN204265388U (en) | 2015-04-15 |
Family
ID=52800267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420694031.7U Expired - Fee Related CN204265388U (en) | 2014-11-18 | 2014-11-18 | A kind of hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204265388U (en) |
-
2014
- 2014-11-18 CN CN201420694031.7U patent/CN204265388U/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: 20150415 Termination date: 20181118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |