CN205973594U - Mechanical lock double acting jack - Google Patents
Mechanical lock double acting jack Download PDFInfo
- Publication number
- CN205973594U CN205973594U CN201620794963.8U CN201620794963U CN205973594U CN 205973594 U CN205973594 U CN 205973594U CN 201620794963 U CN201620794963 U CN 201620794963U CN 205973594 U CN205973594 U CN 205973594U
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- piston
- oil pocket
- outer piston
- bar
- piston bar
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Abstract
The utility model discloses a mechanical lock double acting jack, including cylinder (1) and end cover (2), be equipped with no pole chamber hydraulic fluid port (3) on cylinder (1), pole chamber hydraulic fluid port (4) have been equipped with in end cover (2), establish in the hole of work taken in cock stem (5) inner piston pole (7), and be equipped with in it first oil pocket (8), the hole rear end of work taken in cock stem (5) allies oneself with there are back piston (6), inner piston pole (7) front end allies oneself with there are front piston (10), be equipped with between inner piston pole (7) and work taken in cock stem (5) second oil pocket (9), work taken in cock stem (5) top is equipped with connecting portion (13), connecting portion (13) top is equipped with roof (14), be equipped with the screw on work taken in cock stem (5) front end lateral surface, cylinder (1) top is equipped with lock nut (15) correspondingly, be equipped with in work taken in cock stem (5) of front piston (10) front end the hole of cooling down (12). The utility model discloses a jack can reduce mounting distance, increase the piston stroke, still has the mechanical caging function simultaneously.
Description
Technical field
This utility model is related to a kind of jack, especially a kind of double-action jack with mechanical caging function.
Background technology
Jack, according to different fuel feeding directions, can be divided into single-acting jack and double-action jack, and single-acting is very heavy
Top only inputs hydraulic oil toward the side of cylinder, and leans on other external force to make piston reverses direction backhaul；And double-action jack be then respectively to
The both sides input hydraulic oil of cylinder, forward and reverse motion of piston all completes by hydraulic oil, and two oilholes of double-action jack are usual
It is arranged on the both sides of cylinder, the locating distance between two oilholes is larger so that the stroke of piston is affected；Furthermore, using high-voltage oil liquid
The double-action jack driving is a kind of unstable flexible support to the support of weight, and it has asking of high-voltage oil liquid backflow
Topic, fluid backflow will lead to the support of jack pair weight to be lost efficacy when serious, has a strong impact on the safe handling of jack.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of mechanical lock double-action jack, and it can not only shorten
Locating distance between two hydraulic fluid ports, increases piston stroke, also has mechanical caging function.
This utility model solves its technical problem and be employed technical scheme comprise that：Mechanical lock double-action jack, including cylinder
Cylinder body, outer piston bar, inner piston rod and top board, described cylinder barrel body is made up of cylinder barrel and end cap, and cylinder barrel is provided with rodless cavity
Hydraulic fluid port, is provided with rod chamber hydraulic fluid port in end cap, described inner piston rod is arranged in the endoporus of described outer piston bar, in inner piston rod
It is provided with the first axial oil pocket, the rear end of the first oil pocket is connected with rod chamber hydraulic fluid port, after the endoporus rear end of outer piston bar is associated with
Piston, and rear piston slip is placed on inner piston rod rear end, inner piston rod front end is fixedly connected with secondary piston, and secondary piston slides located at outer work
In the endoporus of stopper rod, between outer piston bar and inner piston rod, be provided with the second oil pocket, the front end of the first oil pocket and secondary piston and after
The second oil pocket between piston is connected, and outer piston masthead portion is provided with connecting portion, and connecting portion top is provided with described top board.
Further, the front end outer side face of described outer piston bar is provided with screw thread, accordingly sets in described cylinder barrel top
It is equipped with the locking nut being coupled on outer piston bar.
Further, described connecting portion is fixedly connected with outer piston bar by screw thread, and described top board passes through bolt and is connected
Portion is fixedly connected.
Further, it is communicated with the hole of cooling down of its endoporus and lateral surface in the outer piston bar of secondary piston front end.
The beneficial effects of the utility model are：Two hydraulic fluid ports are placed in one by mechanical lock double-action jack of the present utility model
End, can shorten the locating distance of oil cylinder, increase piston stroke, meanwhile, also have mechanical caging function.
Brief description
Fig. 1 is the structural representation of mechanical lock double-action jack of the present utility model.
In figure is labeled as:1- cylinder barrel, 2- end cap, 3- rodless cavity hydraulic fluid port, 4- rod chamber hydraulic fluid port, 5- outer piston bar, live after 6-
Plug, 7- inner piston rod, 8- first oil pocket, 9- second oil pocket, 10- secondary piston, 11- connects oil pocket, and 12- cools down hole, and 13- connects
Portion, 14- top board, 15- locking nut.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further illustrated.
As shown in figure 1, mechanical lock double-action jack of the present utility model includes cylinder barrel body, outer piston bar 5, rear piston
6th, inner piston rod 7 and top board 14, described cylinder barrel body is made up of cylinder barrel 1 and end cap 2, and described cylinder barrel 1 is provided with rodless cavity oil
Mouth 3, it is provided that high-voltage oil liquid in order to drive outer piston bar 5 to make forward travel forward, is provided with rod chamber oil in described end cap 2
Mouth 4, it is provided that high-voltage oil liquid in order to drive outer piston bar 5 to make setback backward.Described inner piston rod 7 is arranged on described outer
In the endoporus of piston rod 5, in inner piston rod, 7 are provided with the first axial oil pocket 8, the rear end of the first oil pocket 8 and described rod chamber
Hydraulic fluid port 4 is connected；The endoporus rear end of described outer piston bar 5 be associated with one after piston 6, and rear piston 6 slides and is placed on inner piston rod
Rear end, the front end of inner piston rod 7 is fixedly connected with a secondary piston 10, and secondary piston 10 slides in the endoporus being placed on outer piston bar 5, outer piston
Be provided with the second oil pocket 9 between bar 5 and inner piston rod 7, the front end of described first oil pocket 8 with positioned at secondary piston 10 and rear piston 6
Between the second oil pocket 9 be connected so that rod chamber hydraulic fluid port and the first oil pocket 8 and the second oil pocket 9 by a connection oil pocket
Between constitute an oil duct being interconnected, after high-voltage oil liquid enters from rod chamber hydraulic fluid port 4, it is by by described oil duct
It flow to the interior and forward and backward piston contact of the second oil pocket 9 and the pressure of its own is acted on forward and backward piston, due to secondary piston 10
It is fixedly connected with inner piston rod 7, inner piston rod 7 is fixedly connected with cylinder barrel, so when high-voltage oil liquid acts on rear piston 6,
Piston 6 will drive outer piston bar 5 to make setback backward afterwards.It is provided with energy in the outer piston bar 5 of described secondary piston 10 front end
Connect the hole 12 of cooling down of its endoporus and lateral surface, when outer piston bar 5 is when making to retreat recovery motion, cooling down hole 12 energy will be from the external world
The air entering in outer piston bar 5 endoporus emits, thus avoiding forming high pressure in the endoporus of outer piston rod 5 and making outer
Piston rod 5 can not successfully reclaim retrogressing.Described outer piston bar 5 top is provided with connecting portion 13, and this connecting portion 13 passes through screw thread
Be fixedly connected with outer piston bar 5, the top of connecting portion 13 is provided with the top board 14 described in a piece, described top board 14 pass through bolt with
Connecting portion 13 is fixedly connected, and top board 14 is the gripper shoe being supported weight.Because mechanical lock double acting of the present utility model is very heavy
The rodless cavity hydraulic fluid port 3 on top and rod chamber hydraulic fluid port 4 are arranged at same one end of cylinder barrel body, and therebetween close together,
In the case that outer piston bar 5 length is certain, shorten the locating distance of oil cylinder, thus increasing the stroke of secondary piston 6.
In addition, in order that jack of the present utility model has mechanical caging function, outer in described outer piston bar 5 front end
Screw thread is provided with side, then the top in cylinder barrel 1 is correspondingly provided with the locking nut 15 being coupled on outer piston bar 5, when
When outer piston bar 5 moves forward to specified location, by the spiral shell on described locking nut 15 and outer piston bar 5 front end outer side face
The mating reaction of stricture of vagina and outer piston bar 5 is firmly locked, thus ensureing mechanical lock double-action jack of the present utility model
Safety in utilization.
Claims (4)
1. mechanical lock double-action jack, including cylinder barrel body, outer piston bar（5）, inner piston rod（7）And top board（14）, it is special
Levy and be：Described cylinder barrel body is by cylinder barrel（1）And end cap（2）Composition, cylinder barrel（1）It is provided with rodless cavity hydraulic fluid port（3）, end cap（2）
Inside it is provided with rod chamber hydraulic fluid port（4）, described inner piston rod（7）It is arranged on described outer piston bar（5）Endoporus in, inner piston rod
（7）Inside it is provided with the first axial oil pocket（8）, the first oil pocket（8）Rear end and rod chamber hydraulic fluid port（4）It is connected, outer piston bar（5）
Endoporus rear end be associated with rear piston（6）, and rear piston（6）Slip is placed on inner piston rod（7）Rear end, inner piston rod（7）Front end is solid
It is associated with secondary piston（10）, secondary piston（10）Slide located at outer piston bar（5）Endoporus in, outer piston bar（5）With inner piston rod（7）
Between be provided with the second oil pocket（9）, the first oil pocket（8）Front end and secondary piston（10）And rear piston（6）Between the second oil pocket
（9）It is connected, outer piston bar（5）Top is provided with connecting portion（13）, connecting portion（13）Top is provided with described top board（14）.
2. mechanical lock double-action jack as claimed in claim 1 it is characterised in that：Described outer piston bar（5）Front end outside
Screw thread is provided with side, in described cylinder barrel（1）Top is correspondingly provided with being coupled to outer piston bar（5）On locking nut
（15）.
3. mechanical lock double-action jack as claimed in claim 1 or 2 it is characterised in that：Described connecting portion（13）By spiral shell
Stricture of vagina and outer piston bar（5）It is fixedly connected, described top board（14）By bolt and connecting portion（13）It is fixedly connected.
4. mechanical lock double-action jack as claimed in claim 3 it is characterised in that：In secondary piston（10）The outer piston of front end
Bar（5）Inside it is communicated with the hole of cooling down of its endoporus and lateral surface（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794963.8U CN205973594U (en) | 2016-07-27 | 2016-07-27 | Mechanical lock double acting jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620794963.8U CN205973594U (en) | 2016-07-27 | 2016-07-27 | Mechanical lock double acting jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205973594U true CN205973594U (en) | 2017-02-22 |
Family
ID=58026470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620794963.8U Active CN205973594U (en) | 2016-07-27 | 2016-07-27 | Mechanical lock double acting jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205973594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044615A (en) * | 2016-07-27 | 2016-10-26 | 泸州合成液压件有限公司 | Mechanical lock double-acting jack |
-
2016
- 2016-07-27 CN CN201620794963.8U patent/CN205973594U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044615A (en) * | 2016-07-27 | 2016-10-26 | 泸州合成液压件有限公司 | Mechanical lock double-acting jack |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |