CN203269456U - Two-way hydraulic side-pushing jack for bracket - Google Patents
Two-way hydraulic side-pushing jack for bracket Download PDFInfo
- Publication number
- CN203269456U CN203269456U CN 201320332773 CN201320332773U CN203269456U CN 203269456 U CN203269456 U CN 203269456U CN 201320332773 CN201320332773 CN 201320332773 CN 201320332773 U CN201320332773 U CN 201320332773U CN 203269456 U CN203269456 U CN 203269456U
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- Prior art keywords
- jack
- push rod
- main body
- pushing
- pushing rod
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Abstract
The utility model discloses a two-way hydraulic side-pushing jack for a bracket, relates to the lateral-thrust jack and particularly relates to the side-pushing jack of the two-way hydraulic bracket. The two-way hydraulic side-pushing jack is provided for solving the problem that the existing shielding type hydraulic side-pushing jack for the bracket is easy to leak in the moving process so as to bring inconvenience for labor production and bracket maintenance. The two-way hydraulic side-pushing jack comprises a jack main body and a jack pushing rod and also comprises an extendable pushing rod, wherein one end of the jack pushing rod is inserted into a hydraulic cylinder at one end of the jack main body, and the other end of the jack pushing rod is inserted into an inner cavity of one end of the extendable pushing rod; the outer side wall of the jack main body is provided with a first side protective board inserting hole and a first pin hole in sequence from one end of the jack main body to the other end of the jack main body; and the extendable pushing rod is provided with a second pin hole and a second side protective board inserting hole in sequence from one end of the extendable pushing rod to the other end of the extendable pushing rod. The two-way hydraulic side-pushing jack disclosed by the utility model is used for operation in a coal mine.
Description
Technical field
The utility model relates to a kind of thruster jack, is specifically related to a kind of bidirectional hydraulic support thruster jack.
Background technology
The thruster jack is colliery operation bracing or strutting arrangement commonly used.Have the hydraulic shield support jack now in moving process, very not tight owing to fitting between side guard plate and side guard plate, cause top board to leak goods, make troubles for work production and support maintenance; Owing in exploitation, the coal seam at certain inclination angle being arranged, need both sides all to use jack, increased the cost of winning in colliery.
The utility model content
The utility model easily leaks goods for solving in existing hydraulic shield support jack moving process, give the problem that work is produced and the support maintenance is made troubles, and then propose a kind of bidirectional hydraulic support thruster jack.
The utility model is to address the above problem the technical scheme of taking to be: the utility model comprises jack main body and jack push rod, the utility model also comprises the prolongation push rod, one end of jack push rod is inserted in the hydraulic actuating cylinder of jack main body one end, the other end of jack push rod is inserted in the inner chamber that extends push rod one end, have successively the first side guard plate jack and the first pin-and-hole along jack main body one end to the other end on jack main body lateral wall, have successively the second pin-and-hole and the second side guard plate jack by an end to the other end that extends push rod on the prolongation push rod.
The beneficial effects of the utility model are: the utility model has been eliminated top board and has been leaked the goods problem by in the jack main body with extend and on push rod, first a side guard plate jack to be set respectively respectively and the second side guard plate jack has guaranteed combining closely between side guard plate and side guard plate; By in the jack main body with extend on push rod first pin-and-hole and the second pin-and-hole respectively are set respectively, but make jack two-way push and support, avoid adopting two jacks to carry out Bidirectional supporting, reduced mining cost; The utility model is simple in structure, and is easy to operate, is convenient to maintenance.
Description of drawings
Fig. 1 is integral structure schematic diagram of the present utility model.
The specific embodiment
the specific embodiment one: present embodiment is described in conjunction with Fig. 1, the described a kind of bidirectional hydraulic support thruster jack of present embodiment comprises jack main body 1 and jack push rod 2, present embodiment also comprises prolongation push rod 3, one end of jack push rod 2 is inserted in the hydraulic actuating cylinder 1-1 of jack main body 1 one ends, the other end of jack push rod 2 is inserted in the inner chamber 3-1 that extends push rod 3 one ends, have successively the first pin-and-hole 1-2 and the first side guard plate jack 1-3 along jack main body 1 one ends to the other end on jack main body 1 lateral wall, extend on push rod 3 and have successively the second pin-and-hole 3-2 and the second side guard plate jack 3-3 by an end to the other end that extends push rod 3.
The technique effect of present embodiment is: the first side guard plate jack 1-3 and the second side guard plate jack 3-3 have guaranteed to fit closely between side guard plate and side guard plate, can not produce top board and leak goods.
The specific embodiment two: present embodiment is described in conjunction with Fig. 1, the described a kind of bidirectional hydraulic support thruster jack of present embodiment also comprises the first spring 4, the first spring 4 is sleeved on jack push rod 2, and the first spring 4 is between jack main body 1 one end end faces and prolongation push rod 3 one end end faces.
The technique effect of present embodiment is: so arrange, the first spring 4 can and extend push rod 3 to jack main body 1 and produce Bidirectional supporting power, and the pressure that produces in available buffer jack working process, make in jack push rod 2 moving process, jack main body 1 one end end faces have thrust all the time with prolongation push rod 3 one end end faces, have guaranteed can not leak goods in the jack working process.
Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: present embodiment is described in conjunction with Fig. 1, the described a kind of bidirectional hydraulic support thruster jack of present embodiment also comprises the second spring 5, the second spring 5 is arranged in the inner chamber 3-1 that extends push rod 3 one ends, and the second spring 5 is between jack push rod 2 other end end faces and inner chamber 3-1 bottom surface.
The technique effect of present embodiment is: the pressure between second spring 5 available buffer jack push rod 2 other ends and prolongation push rod 3 one ends so is set.
Other composition and annexation are identical with the specific embodiment one.
Principle of work
During the utility model use, side guard plate of difference plug-in mounting in the first side guard plate jack 1-3 and the second side guard plate jack 3-3, after the first pin-and-hole 1-2 fixed, jack push rod 2 drivings this moment extended push rod 3 edge prolongation push rod 3 axis directions and move; After the second pin-and-hole 3-2 was fixing, jack main body 1 can move along its axis direction at this moment, realized that so two side directions of jack promote and support.
Claims (3)
1. bidirectional hydraulic support thruster jack, it comprises jack main body (1) and jack push rod (2), it is characterized in that: described a kind of bidirectional hydraulic support thruster jack also comprises prolongation push rod (3), one end of jack push rod (2) is inserted in the hydraulic actuating cylinder (1-1) of jack main body (1) one end, the other end of jack push rod (2) is inserted in the inner chamber (3-1) that extends push rod (3) one ends, have successively the first pin-and-hole (1-2) and the first side guard plate jack (1-3) along jack main body (1) one end to the other end on jack main body (1) lateral wall, extend a upper end to the other end by extending push rod (3) of push rod (3) and have successively the second pin-and-hole (3-2) and the second side guard plate jack (3-3).
2. a kind of bidirectional hydraulic support thruster jack according to claim 1, it is characterized in that: described a kind of bidirectional hydraulic support thruster jack also comprises the first spring (4), the first spring (4) is sleeved on jack push rod (2), and the first spring (4) is positioned at jack main body (1) one end end face and extends between push rod (3) one end end faces.
3. a kind of bidirectional hydraulic support thruster jack according to claim 1, it is characterized in that: described a kind of bidirectional hydraulic support thruster jack also comprises the second spring (5), the second spring (5) is arranged in the inner chamber (3-1) that extends push rod (3) one ends, and the second spring (5) is positioned between jack push rod (2) other end end face and inner chamber (3-1) bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320332773 CN203269456U (en) | 2013-06-06 | 2013-06-06 | Two-way hydraulic side-pushing jack for bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320332773 CN203269456U (en) | 2013-06-06 | 2013-06-06 | Two-way hydraulic side-pushing jack for bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203269456U true CN203269456U (en) | 2013-11-06 |
Family
ID=49499908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320332773 Expired - Fee Related CN203269456U (en) | 2013-06-06 | 2013-06-06 | Two-way hydraulic side-pushing jack for bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203269456U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896178A (en) * | 2014-03-24 | 2014-07-02 | 江苏江北液压机械制造有限公司 | Lifting jack bidirectional hydraulic device and manufacturing method thereof |
| CN104405426A (en) * | 2014-07-28 | 2015-03-11 | 三一重型装备有限公司 | Horizontal thrust device of hydraulic support and hydraulic support |
| CN104609330A (en) * | 2015-01-21 | 2015-05-13 | 巨隆液压设备(集团)有限公司 | Bidirectional hydraulic jack |
| CN105174119A (en) * | 2015-09-06 | 2015-12-23 | 滁州市洪武报废汽车回收拆解利用有限公司 | Lifting support column with elastic buffer function |
-
2013
- 2013-06-06 CN CN 201320332773 patent/CN203269456U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896178A (en) * | 2014-03-24 | 2014-07-02 | 江苏江北液压机械制造有限公司 | Lifting jack bidirectional hydraulic device and manufacturing method thereof |
| CN103896178B (en) * | 2014-03-24 | 2017-02-15 | 江苏江北液压机械制造有限公司 | Lifting jack bidirectional hydraulic device and manufacturing method thereof |
| CN104405426A (en) * | 2014-07-28 | 2015-03-11 | 三一重型装备有限公司 | Horizontal thrust device of hydraulic support and hydraulic support |
| CN104609330A (en) * | 2015-01-21 | 2015-05-13 | 巨隆液压设备(集团)有限公司 | Bidirectional hydraulic jack |
| CN104609330B (en) * | 2015-01-21 | 2017-02-22 | 巨隆液压设备(集团)有限公司 | Bidirectional hydraulic jack |
| CN105174119A (en) * | 2015-09-06 | 2015-12-23 | 滁州市洪武报废汽车回收拆解利用有限公司 | Lifting support column with elastic buffer function |
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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: 20131106 Termination date: 20140606 |