CN201412172Y - Bidirectional externally injected single hydraulic prop without stigma - Google Patents

Bidirectional externally injected single hydraulic prop without stigma Download PDF

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Publication number
CN201412172Y
CN201412172Y CN2009201573274U CN200920157327U CN201412172Y CN 201412172 Y CN201412172 Y CN 201412172Y CN 2009201573274 U CN2009201573274 U CN 2009201573274U CN 200920157327 U CN200920157327 U CN 200920157327U CN 201412172 Y CN201412172 Y CN 201412172Y
Authority
CN
China
Prior art keywords
cylinder
valve
alive
triple
moving 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
Application number
CN2009201573274U
Other languages
Chinese (zh)
Inventor
潘英会
Original Assignee
潘英会
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 潘英会 filed Critical 潘英会
Priority to CN2009201573274U priority Critical patent/CN201412172Y/en
Application granted granted Critical
Publication of CN201412172Y publication Critical patent/CN201412172Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a bidirectional externally injected single hydraulic prop without stigma comprising a cylinder (5), a piston (7), and a moving cylinder (6). The moving cylinder, the pistonare disposed inside the cylinder, an inclined top cover (1) is provided on the top of the moving cylinder, and a substrate (9) and a hat type chassis (8) are provided on the bottom end of the cylinder. A liquid outlet valve is disposed on the moving cylinder; and a three-purpose valve and a liquid injection opening is provided above the liquid outlet valve on the moving cylinder. The prop is characterized in that the moving cylinder is an integral member, the three-purpose valve (3) and the liquid injection opening are disposed on a connection sleeve for the three-purpose valve, and further the three-purpose valve and the connection sleeve are movably arranged on the moving cylinder. The utility model is suitable for being used as a column of the supporting rack for coal mine roadway, having advantages of single body structure, long life and easy operation.

Description

The two-way outside injection type hydraulic pillar of no column cap
Technical field
The utility model belongs to a kind of support apparatus of coal mining work plane, specifically is the hydraulic prop of hydraulic support.
Background technology
The coal-face support apparatus that uses has cantilever support at present, slippage bracket, and the bracket type sectional shelf-unit, they all need a kind of pillar, and this pillar mostly is a fluid pressure type.Used hydraulic prop generally all is provided with a cylinder alive, and whole cylinder alive is made up of lengthening tube, column cap and bottom plunger tube three parts, and this three part is fixedly connected by welding into a cylinder integral body alive; And the triple-use valve on the column cap is to pass cylinder alive, and direction is fixed.This pillar has some shortcomings: because cylinder is to be welded by three place's connecting portions, so be prone to fracture when pillar bears transverse load; Because triple-use valve is arranged in the open-work on the column cap body, corrosion back prop in triple-use valve hole just can't use; Shortened the application life of pillar; Because the triple-use valve hole is fixed, so the direction of inlet is fixed inconvenient operation.Therefore, need improve with pillar existing.
The utility model content
The purpose of this utility model is in order to solve the problems of the technologies described above, to propose the two-way outside injection type hydraulic pillar of a kind of no column cap.This pillar is made of the cylinder alive of an integral body, and triple-use valve is rotatable, and pillar is easy to operate, long service life.
The purpose of this utility model is achieved through the following technical solutions: the two-way outside injection type hydraulic pillar of no column cap, be provided with cylinder body, piston, cylinder alive, cylinder alive, piston is located at the cylinder body the inside, cylinder alive upper end is provided with the oblique top lid, the cylinder body lower end is provided with base and carnival hat formula chassis, on the cylinder of living, be provided with liquid valve, be provided with triple-use valve and liquid injection port above the liquid valve on the cylinder of living, it is characterized in that: described cylinder alive is as a whole, described triple-use valve and liquid injection port are arranged on the triple-use valve adapter sleeve, and triple-use valve and adapter sleeve are arranged on the cylinder alive rotationally.
The two-way outside injection type hydraulic pillar of no column cap of the present utility model has the following advantages: 1, solved the existing problem that is prone to fracture with pillar when bearing transverse load, be to be welded by three connecting portions with pillar cylinder alive now, the cylinder alive of hydraulic prop of the present utility model is whole.2, be the open-work that is located on the cylinder body alive now with the triple-use valve hole of pillar, when its corrosion back prop just can't use, the cylinder alive of pillar of the present utility model can only be changed the triple-use valve adapter sleeve, and pillar can be reused, and improves the application life of pillar greatly.3, the triple-use valve adapter sleeve can rotate on pillar, changes the liquid outlet direction of triple-use valve arbitrarily, makes things convenient for the workman to operate.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described: embodiment: referring to accompanying drawing, the two-way outside injection type hydraulic pillar of a kind of no column cap, be provided with cylinder body 5, piston 7, cylinder 6 alive, cylinder alive, piston is located at the cylinder body the inside, cylinder alive upper end is provided with oblique top lid 1, the lower end of cylinder body is provided with base 9 and carnival hat formula chassis 8, on the cylinder of living, be provided with liquid valve 4, be provided with triple-use valve and liquid injection port above the liquid valve on the cylinder of living, it is characterized in that: described cylinder alive is as a whole, described triple-use valve 3 and liquid injection port 3.1 are arranged on the triple-use valve adapter sleeve 2, and triple-use valve and adapter sleeve are arranged on the cylinder alive rotationally.
Present embodiment is very good through trial effect.

Claims (1)

1, the two-way outside injection type hydraulic pillar of a kind of no column cap, be provided with cylinder body (5), piston (7), cylinder (6) alive, cylinder alive, piston is located at the cylinder body the inside, cylinder alive upper end is provided with oblique top lid (1), the cylinder body lower end is provided with base (9) and carnival hat formula chassis (8), on the cylinder of living, be provided with liquid valve (4), be provided with triple-use valve and liquid injection port above the liquid valve on the cylinder of living, it is characterized in that: described cylinder alive is as a whole, described triple-use valve (3) and liquid injection port (3.1) are arranged on the triple-use valve adapter sleeve (2), and triple-use valve and adapter sleeve are arranged on the cylinder alive rotationally.
CN2009201573274U 2009-05-27 2009-05-27 Bidirectional externally injected single hydraulic prop without stigma Expired - Fee Related CN201412172Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201573274U CN201412172Y (en) 2009-05-27 2009-05-27 Bidirectional externally injected single hydraulic prop without stigma

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201573274U CN201412172Y (en) 2009-05-27 2009-05-27 Bidirectional externally injected single hydraulic prop without stigma

Publications (1)

Publication Number Publication Date
CN201412172Y true CN201412172Y (en) 2010-02-24

Family

ID=41714058

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201573274U Expired - Fee Related CN201412172Y (en) 2009-05-27 2009-05-27 Bidirectional externally injected single hydraulic prop without stigma

Country Status (1)

Country Link
CN (1) CN201412172Y (en)

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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: 20100224

Termination date: 20120527