CN2092602U - Single-body hydraulic props with no head - Google Patents
Single-body hydraulic props with no head Download PDFInfo
- Publication number
- CN2092602U CN2092602U CN 91211194 CN91211194U CN2092602U CN 2092602 U CN2092602 U CN 2092602U CN 91211194 CN91211194 CN 91211194 CN 91211194 U CN91211194 U CN 91211194U CN 2092602 U CN2092602 U CN 2092602U
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- Prior art keywords
- triple
- steel wire
- use valve
- injection type
- single body
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Abstract
The utility model relates to an external injection type single body hydraulic supporting post used in a mine. The external injection type single body hydraulic supporting post used in a mine is the improvement of the existing external injection type single body hydraulic supporting post. The external injection type single body hydraulic supporting post used in a mine is characterized in that the upper half part of a movable post barrel [14] is provided with a three-purpose valve sleeve [30] for installing a three-purpose valve [7]. Thus, a post head [6] which is used for installing the three-purpose valve and is arranged on an original single body hydraulic supporting post is cancelled, and a movable post has an integral structure; thereby, the force bearing condition is improved, and the safe and reliable work is realized. In addition, due to the fact that a baffle ring [28] with a gap is welded on the lower part of a cylinder body [15], and the gap is arranged on the cylinder bottom [27]; thereby, when the external injection type single body hydraulic supporting post used in a mine is dismantled, a handle body can be easily pulled out to be connected with a steel wire [13], and a steel wire [29] is connected with a base; thus, the work efficiency is raised.
Description
The utility model is the outside injection type hydraulic pillar that is used for mine support, is the improvement to former outside injection type hydraulic pillar.Belong to mine support equipment.
Existing outside injection type hydraulic pillar below 2.5 meters as shown in Figure 1.Mainly connecting steel wire ［ 13 ］, plunger tube ［ 14 ］, cylinder body ［ 15 ］, spacing steel wire ［ 16 ］, piston ［ 22 ］, O-ring seals ［ 20 ］, ［ 25 ］, y-shaped ring ［ 24 ］, base ［ 27 ］, base connection steel wire ［ 29 ］ etc. by top cover seat board ［ 3 ］, spreading tube ［ 5 ］, column cap ［ 6 ］, triple-use valve ［ 7 ］, back-moving spring ［ 9 ］, handgrip body ［ 12 ］, handgrip body forms.It has following shortcoming: the post of 1, living is welded for ［ 5 ］ three sections by plunger tube ［ 14 ］, column cap ［ 6 ］, spreading tube, easily splits off from the commissure in the use, and high is serious more.2,, influenced and used normally and keep in repair because column cap ［ 6 ］ bears whole pressure of top board, and the bore deformation that triple-use valve ［ 7 ］ is installed on the column cap is bigger.When 3, overhauling, handgrip body connection steel wire ［ 13 ］ is connected steel wire ［ 29 ］ and is difficult for being pulled out with base.Tear the post difficulty open.
It is overall structure that the purpose of this utility model is to design a kind of post alive, and it is good to prop up force-bearing situation, reliable operation, the outside injection type hydraulic pillar of convenient disassembly.
The technical solution of the utility model as shown in Figures 2 and 3.Mainly be establish a triple-use valve cover ［ 30 ］ at the first half of plunger tube, in order to triple-use valve ［ 7 ］ to be installed.For convenient disassembly, at the bottom of cylinder barrel ［ a 15 ］ welding notched baffle ring ［ 28 ］, around base ［ 27 ］, have breach, as Fig. 2 B-B, C-C section, omit among Fig. 3 and do not draw.
The utility model has the advantages that: 1, cancelled column cap ［ 6 ］, the post ［ 14 ］ of living is overall structure, force-bearing situation is good, reliable operation, processing and manufacturing are simple.2, in use triple-use valve cover ［ 30 ］ is stressed very little, and the installing hole of triple-use valve ［ 7 ］ can not be out of shape.3, when the maintenance pillar, convenient disassembly.
Accompanying drawing 3 explanations two embodiments of the present utility model in conjunction with the accompanying drawings 2.
Fig. 2 is a kind of structure chart of the present utility model, ［ 1 ］-spherical bearing among the figure, ［ 2 ］-pin, ［ 3 ］-the top cover seat board, ［ 31 ］-top cover connection steel wire, ［ 32 ］-extension spray lance, ［ 33 ］-the extension spray lance plug, ［ 8 ］-spring carrier arm, ［ 9 ］-back-moving spring, ［ 7 ］-triple-use valve, ［ 30 ］-the triple-use valve cover, ［ 34 ］-triple-use valve cover plug, ［ 10 ］-dust ring, ［ 11 ］-the post guide ring of living, ［ 12 ］-the handgrip body, ［ 13 ］-handgrip body connection steel wire, ［ 14 ］-plunger tube, ［ 15 ］-cylinder body, ［ 16 ］-spacing steel wire, ［ 18 ］-piston connection steel wire, ［ 17 ］, ［ 26 ］-ring washer, ［ 20 ］, ［ 25 ］-O-ring seals, ［ 21 ］-the piston guide ring, ［ 23 ］-the leather cup anti-extrusion ring, ［ 24 ］-y-shaped ring, ［ 27 ］-base, ［ 28 ］-baffle ring, ［ 29 ］-base connection steel wire.
The key point that this structure is different with existing pillar is: increased triple-use valve cover ［ 30 ］, triple-use valve cover ［ 30 ］ is made the form of A-A section, during installation, is enclosed within the first half of plunger tube outside, welds together with plunger tube.
Fig. 3 is an another kind of structure chart of the present utility model.［ 1 ］-spherical bearing among the figure, ［ 2 ］-pin, ［ 3 ］-the top cover seat board, ［ 4 ］, ［ 36 ］-elasticity garden pin, ［ 30 ］-the triple-use valve cover, ［ 7 ］-triple-use valve, ［ 8 ］-spring carrier arm, ［ 9 ］-back-moving spring, ［ 10 ］-dust ring, ［ 11 ］-the post guide ring of living, ［ 12 ］-the handgrip body, ［ 13 ］-handgrip body connection steel wire, ［ 14 ］-plunger tube, ［ 15 ］-cylinder body, ［ 16 ］-spacing steel wire, ［ 18 ］-piston connection steel wire, ［ 21 ］-the piston guide ring, ［ 38 ］, ［ 25 ］-O-ring seals, ［ 39 ］, ［ 26 ］-back-up ring, ［ 23 ］-the leather cup anti-extrusion ring, ［ 24 ］-y-shaped ring, ［ 27 ］-base, ［ 28 ］-baffle ring, ［ 29 ］-base connection steel wire.
The difference of this structure and Fig. 2 is: triple-use valve cover ［ 30 ］ is made built-in type, during installation, is contained in the first half of plunger tube ［ 14 ］ endoporus, with elasticity garden pin ［ 36 ］ three usefulness cover valve pockets ［ 30 ］ and plunger tube ［ 14 ］ is linked together.Between triple-use valve cover ［ 30 ］ and piston ［ 22 ］, be connected a central tube ［ 37 ］ in addition, be used to carry liquid, its top and triple-use valve cover ［ 30 ］ weld together, insert in the piston its underpart, and dress is with O-ring seals ［ 39 ］, the inner chamber of cavity of resorption that props up and plunger tube is separated, cancelled O-ring seals ［ 20 ］ and back-up ring ［ 17 ］ in the former pillar, increased the wall thickness of plunger tube end opening.
Operating principle below in conjunction with accompanying drawing 2,3 pairs of these utility models of accompanying drawing is described further, during setting prop, highly pressurised liquid injects from the liquid injection port of triple-use valve ［ 7 ］, hydraulic coupling overcomes spring force rises post alive.When falling post, handle triple-use valve, highly pressurised liquid releases from the leakage hole of triple-use valve, and the post of living descends, and during carrying, when the fluid pressure in the pillar surpassed in the triple-use valve set pressure for safety valve, safety valve was opened, and liquid sprays from safety valve.
When tearing post open, the claw of prop dismounting machine chuck can directly insert in the breach of base ［ 27 ］, when cylinder body ［ 15 ］ maintains static and chuck when rotation, can directly drive base to rotate, thereby extract connecting a steel wire ［ 29 ］.In like manner also can extract and connect steel wire ［ 13 ］.So convenient disassembly.
The utility model is applicable to all outside injection type hydraulic pillar below 2.5 meters.
Claims (4)
1, the outside injection type hydraulic pillar used of a kind of mine down-hole supporting mainly by top cover seat board [3], triple-use valve [7], back-moving spring [9], handgrip body [12], handgrip body connect steel wire [13], plunger tube [14], cylinder body [15], spacing steel wire [16], piston [22], piston guide ring [21], y-shaped ring [24], base [27], base connects steel wire [29] and characteristic triple-use valve cover [30] is formed.
2, hydraulic prop according to claim 1 is characterized in that: triple-use valve cover ［ 30 ］ is enclosed within plunger tube ［ 14 ］ the outside first half and plunger tube ［ 14 ］ and welds together.
3, hydraulic prop according to claim 1 is characterized in that: triple-use valve cover ［ 30 ］ is contained in the plunger tube ［ 14 ］; And between triple-use valve cover ［ 30 ］ and piston ［ 22 ］, be connected with central tube ［ 37 ］; O-ring seals ［ 38 ］ is contained in piston and the endoporus that central tube is connected, so that the inner chamber of pillar cavity of resorption and plunger tube ［ 14 ］ is separated.
4, according to right 2 or 3 described hydraulic props, it is characterized in that: be welded with notched baffle ring ［ 28 ］ in the bottom of cylinder body ［ 15 ］, have breach around base ［ 27 ］, the quantity of breach is 2-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91211194 CN2092602U (en) | 1991-02-01 | 1991-02-01 | Single-body hydraulic props with no head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91211194 CN2092602U (en) | 1991-02-01 | 1991-02-01 | Single-body hydraulic props with no head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2092602U true CN2092602U (en) | 1992-01-08 |
Family
ID=4919901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91211194 Withdrawn CN2092602U (en) | 1991-02-01 | 1991-02-01 | Single-body hydraulic props with no head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2092602U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100535394C (en) * | 2005-10-31 | 2009-09-02 | 中国矿业大学 | Suspension type hydraulic prop |
| CN102852537A (en) * | 2012-09-19 | 2013-01-02 | 上海支护机械设备有限公司 | Nickel-titanium alloy web membrane technology of single hydraulic prop for mine |
-
1991
- 1991-02-01 CN CN 91211194 patent/CN2092602U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100535394C (en) * | 2005-10-31 | 2009-09-02 | 中国矿业大学 | Suspension type hydraulic prop |
| CN102852537A (en) * | 2012-09-19 | 2013-01-02 | 上海支护机械设备有限公司 | Nickel-titanium alloy web membrane technology of single hydraulic prop for mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |