CN214787485U - Hydraulic prop of advance support convenient to pressure regulation - Google Patents
Hydraulic prop of advance support convenient to pressure regulation Download PDFInfo
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- CN214787485U CN214787485U CN202023174943.6U CN202023174943U CN214787485U CN 214787485 U CN214787485 U CN 214787485U CN 202023174943 U CN202023174943 U CN 202023174943U CN 214787485 U CN214787485 U CN 214787485U
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- hydraulic prop
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- wall
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- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 238000010030 laminating Methods 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 8
- 230000001105 regulatory effect Effects 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 description 34
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The utility model discloses a hydraulic prop of advance support convenient to regulated pressure, including the hydraulic prop body, the hydraulic prop body be equipped with the cylinder body of arranging tunnel bottom plate in and the piston post of part in arranging the cylinder body in, wherein, the piston post can be followed cylinder body axis and slided, the cylinder body lateral wall still is equipped with a plurality of three way valves with cylinder body cavity UNICOM, cylinder body outer wall has still cup jointed can follow the gliding lantern ring that is equipped with the circulation chamber of cylinder body axis, the top of the lantern ring is equipped with a plurality of through-holes that correspond with the three way valve, the valve port that the three way valve had passes through the through-hole intercommunication of coupling hose and lantern ring, still be equipped with on the periphery wall of the lantern ring communicating pipe with circulation chamber intercommunication, adopt the technical scheme of the utility model, quick pressurization and release guarantee underground mining safety.
Description
Technical Field
The utility model belongs to the coal mining field, more specifically says, the utility model relates to a hydraulic prop of advance support convenient to regulated pressure.
Background
The single hydraulic prop is called as a single prop for short, and is matched with a metal hinged top beam in the coal mining process and used for supporting and protecting a common mining working face; the single column does not have a pushing device, an integral base and a top beam, but the structure of the column body is more complex than that of a pillar on a hydraulic support; the single column is also a constant resistance working column.
The single hydraulic prop is suitable for a horizontal or slowly-inclined coal bed with an inclination angle smaller than 25 degrees, and can be used in a coal bed with an inclination angle of 25-35 degrees when safety measures are available, a roadway bottom plate using the single hydraulic prop cannot be too soft, when the pressure of a top plate supported by the single hydraulic prop changes, the height of the single hydraulic prop needs to be adjusted timely to adapt to the pressure, the adjustment of the height of the single hydraulic prop is completed through pressurization and pressure relief, only one three-way valve is arranged on the single hydraulic prop in the prior art, the flow of liquid flowing through the three-way valve is small in the pressurization and pressure relief processes, the response speed of the single hydraulic prop is slow, and potential safety hazards exist in complicated and variable mining geological conditions in a mine.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a hydraulic prop of advance support of being convenient for regulated pressure of mining safety in the pit is guaranteed in quick pressurization and release.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: the hydraulic support post convenient to advance support of regulated pressure that provides, including the hydraulic support post body, the hydraulic support post body be equipped with the cylinder body of arranging the tunnel bottom plate in and the piston post of part in arranging the cylinder body in, wherein, the piston post can slide along the cylinder body axis, the cylinder body lateral wall still is equipped with a plurality of three way valves with cylinder body cavity UNICOM, the cylinder body outer wall still cup joints the lantern ring that can follow cylinder body axis gliding and be equipped with the circulation chamber, the top of the lantern ring is equipped with a plurality of through-holes that correspond with the three way valve, the valve port that the three way valve had passes through the through-hole intercommunication of coupling hose with the lantern ring, still be equipped with the communicating pipe with circulation chamber intercommunication on the periphery wall of the lantern ring.
The utility model discloses a hydraulic prop of advance support convenient to regulated pressure, the periphery wall of cylinder body with one of them a plurality of guide ways of distribution of the internal perisporium of the lantern ring, another is equipped with the direction arch that suits with guide way sliding fit, and wherein, the axial extension of cylinder body is all followed to guide way and direction arch.
The utility model discloses a hydraulic prop of advance support convenient to regulated pressure is equipped with fastener on the lantern ring, and wherein, fastener is used for fixing lantern ring locking on the cylinder body lateral wall.
The utility model discloses a hydraulic prop of advance support convenient to regulated pressure has still cup jointed a third sleeve on the cylinder body outer wall, and the laminating of third telescopic top and lantern ring bottom still is equipped with the screw hole on one side of the third sleeve, and fastening bolt that fastener has passes wherein to tight cylinder body outer wall.
The utility model discloses a hydraulic prop of advance support convenient to regulated pressure, lantern ring through-hole department are equipped with first sleeve, the valve gate department that three way valve had is equipped with the second sleeve, and first sleeve and second sleeve pass through coupling hose threaded connection.
Adopt the technical scheme of the utility model, the three way valve of a plurality of and cylinder body cavity UNICOM that the cylinder body lateral wall set up, and through lantern ring circulation chamber with a plurality of three way valve UNICOM, when filling liquid, pour into liquid into the circulation intracavity through communicating pipe, the intercommunication chamber communicates with through-hole, therefore after liquid fills the intercommunication chamber, just can pour into the valve port of every three way valve into through-hole and the coupling hose that is linked together with the through-hole, and then rethread valve port gets into in the cavity of cylinder body, a plurality of three way valves can work simultaneously, liquid flow has been strengthened, liquid injection speed has been improved, the piston post risees rapidly; when the height is reduced, the piston column is lowered, the three-way valve is adjusted to the unloading position, liquid in the cavity of the cylinder body flows into the communicating cavity through the valve port of the three-way valve through the connecting hose and then is discharged outwards through the communicating pipe, and the three-way valves work simultaneously, so that the liquid flow during unloading can be improved, and the piston column is quickly lowered; the pressure is quickly increased and released, so that the underground mining safety is ensured; the lantern ring can be followed the axial direction removal of cylinder body, because the lantern ring is portable, consequently the height of communicating pipe is adjusted to the accessible removal lantern ring to make things convenient for liquid feeding or flowing back, fastener is used for fixing the lantern ring locking in the position department that the cylinder body suits.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a diagram illustrating a state of use of a fore-supporting hydraulic prop for conveniently adjusting pressure according to the present invention;
fig. 2 is a perspective view of a fore-supported hydraulic prop of the present invention for facilitating pressure adjustment;
fig. 3 is a perspective view of a hydraulic prop shown in a forepoling hydraulic prop for facilitating pressure regulation according to the present invention;
fig. 4 is a perspective view of the collar shown in the hydraulic prop of the advance support for pressure adjustment of the present invention.
Labeled as: 1. a cylinder body; 2. a piston post; 3. a three-purpose valve; 4. a collar; 5. a connecting hose; 6. A communicating pipe; 7. a first sleeve; 8. a second sleeve; 9. a guide groove; 10. a guide projection; 11. a third sleeve; 12. and fastening the bolt.
Detailed Description
The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail to explain, for example, the shapes and structures of the components, the mutual positions and connection relationships among the components, the functions and working principles of the components, the manufacturing process, and the operation and use method of the components, so as to help those skilled in the art to understand the concept and technical solutions of the present invention more completely, accurately and deeply.
FIG. 1 is a diagram illustrating a state of use of a fore-supporting hydraulic prop for conveniently adjusting pressure according to the present invention; fig. 2 is a perspective view of a fore-supported hydraulic prop of the present invention for facilitating pressure adjustment; fig. 3 is a perspective view of a hydraulic prop shown in a forepoling hydraulic prop for facilitating pressure regulation according to the present invention; FIG. 4 is a perspective view of the collar shown in the forepoling hydraulic strut of the present invention to facilitate pressure regulation; the utility model relates to a hydraulic prop of advance support convenient to pressure regulation as shown in the figure, including the hydraulic prop body, the hydraulic prop body is equipped with cylinder body 1 and the piston post 2 of part in arranging in jar 1 of arranging in the tunnel bottom plate, piston post 2 can slide along cylinder body 1 axis, cylinder body 1 lateral wall still is equipped with a plurality of three way valve 3 with cylinder body 1 cavity UNICOM, can also cup joint along cylinder body 1 axis gliding lantern ring 4 that is equipped with the circulation chamber on the outer wall of cylinder body 1, the top of lantern ring 4 is equipped with a plurality of through-holes that correspond with three way valve 3, the valve port that three way valve 3 has is through connecting hose 5 and the through-hole of lantern ring 4 intercommunication, still be equipped with communicating pipe 6 with the circulation chamber intercommunication on the periphery wall of lantern ring 4; one of the outer peripheral wall of the cylinder body 1 and the inner peripheral wall of the lantern ring 4 is distributed with a plurality of guide grooves 9, the other one is provided with corresponding guide protrusions 10 in sliding fit with the guide grooves 9, and the guide grooves 9 and the guide protrusions 10 extend along the axial direction of the cylinder body 1; the lantern ring 4 is provided with a fastening device which is used for locking and fixing the lantern ring 4 on the side wall of the cylinder body 1; a third sleeve 11 is further sleeved on the outer wall of the cylinder body 1, the top of the third sleeve 11 is attached to the bottom of the sleeve, a threaded hole is further formed in one side of the third sleeve 11, and a fastening bolt 12 of the fastening device penetrates through the threaded hole to abut against the outer wall of the cylinder body; the through hole of the lantern ring 4 is provided with a first sleeve 7, the valve port of the three-way valve 3 is provided with a second sleeve 8, and the first sleeve 7 and the second sleeve 8 are in threaded connection through a connecting hose 5.
The three-purpose valve 3 is formed by combining a one-way valve, an unloading valve and a safety valve, when the three-way valve works, the high-pressure liquid opens the one-way valve of the liquid injection valve body through the liquid injection gun, the high-pressure liquid enters the lower cavity of the cylinder body 1 through a valve port, and the piston column 2 rises; after stopping filling, the one-way valve is automatically closed, and the cylinder body 1 is fixed at a certain position; when the pressure of the top plate is increased and the pressure of the inner cavity of the cylinder body 1 exceeds the set pressure of the safety valve, the safety valve opens the liquid to overflow, the pressure of the inner cavity of the cylinder body 1 is reduced, and the safety valve is closed when the pressure of the inner cavity of the cylinder body 1 is lower than the valve closing pressure of the safety valve; when the column is lowered, the unloading handle is rotated to push the valve sleeve to move axially, the unloading valve is opened, the emulsion in the cylinder body 1 overflows through the valve port, the piston column 2 retracts under the action of self weight and a return spring, and related structures and technical principles are well known by those skilled in the art and are not described herein again.
When liquid needs to be filled into the hydraulic support, a liquid filling device (such as a liquid filling gun) can fill liquid into the circulation cavity through the communicating pipe 6, and the communicating cavity is communicated with the through hole, so that the liquid can be filled into the valve port of each three-way valve 3 through the through hole and the connecting hose 5 communicated with the through hole after filling the communicating cavity, and then enters the cavity of the cylinder body 1 through the valve ports, the three-way valves 3 can work simultaneously, the liquid flow during filling can be improved, the liquid filling speed can be improved, and the piston column 2 can be rapidly lifted; correspondingly, when the piston column 2 is required to descend, the three-way valve 3 is adjusted to the unloading position, liquid in the chamber of the cylinder body 1 can flow into the communicating cavity through the valve port of the three-way valve 3 through the connecting hose 5 and then is discharged outwards through the communicating pipe 6, and similarly, a plurality of three-way valves 3 can work simultaneously, so that the liquid flow during unloading can be improved, then the liquid discharging speed can be increased, and the piston column 2 can be quickly reduced.
Although a plurality of three-way valves 3 are arranged in the embodiment, the three-way valves 3 are connected through the lantern ring 4, so that a plurality of liquid injection devices are not needed to be used for filling the three-way valves 3 one by one, and the pressurizing and pressure relief processes of the hydraulic prop are greatly facilitated.
In this embodiment, as shown in fig. 3 and 4, the connection hose 5 is detachably connected to the three-way valve 3 and the collar 4, respectively, thereby facilitating installation and subsequent maintenance and replacement of the connection hose 5.
Specifically, as shown in fig. 3 and 4, a first sleeve 7 is arranged on the outer peripheral wall of the sleeve ring 4, the first sleeve 7 is located at the through hole, the first sleeve 7 is coaxially arranged with the through hole, a second sleeve 8 is arranged on the three-way valve, the second sleeve 8 is located at the valve hole, the second sleeve 8 is coaxially arranged with the valve port, internal threads are arranged on the inner peripheral walls of the first sleeve 7 and the second sleeve 8, external threads are arranged at two ends of the connecting hose 5, one end of the connecting hose 5 is in threaded fit with the first sleeve 7, and the other end of the connecting hose 5 is in threaded fit with the second sleeve 8, so that the structure is simple.
In this embodiment, as shown in fig. 2, the lantern ring 4 can move along the axial direction of the cylinder body 1 relative to the cylinder body 1, the lantern ring 4 is provided with a fastening device, the fastening device is used for locking and fixing the lantern ring 4 on the cylinder body 1, and the lantern ring 4 can move, so that the height of the communication pipe 6 can be adjusted by moving the lantern ring 4, and liquid can be conveniently added or drained.
In the present embodiment, as shown in fig. 3 and 4, one of the outer peripheral wall of the cylinder body 1 and the inner peripheral wall of the collar 4 is provided with the guide groove 9, the other is provided with the guide projection 10, both the guide groove 9 and the guide projection 10 extend in the axial direction of the cylinder body 1, and the guide projection 10 is slidably fitted with the guide groove 9, whereby the structure is simple.
Further, the guide grooves 9 and the guide protrusions 10 are a plurality of, the guide grooves 9 and the guide protrusions 10 are arranged at intervals along the circumferential direction of the cylinder body 1, and the guide grooves 9 are in one-to-one correspondence with the guide protrusions 10.
In this embodiment, as shown in fig. 4, the fastening device includes a third sleeve 11 and a fastening bolt 12, one side of the outer peripheral wall of the lantern ring 4, which is far away from the through opening, is provided with the third sleeve 11, the third sleeve 11 is fixedly connected with the lantern ring 4, the third sleeve 11 is sleeved on the cylinder body 1, the third sleeve 11 is provided with a threaded hole, the fastening bolt 12 is in threaded fit with the threaded hole, the fastening bolt abuts against the cylinder body 1 to fix the lantern ring 4 on the cylinder body 1, and therefore the lantern ring 4 can be fixed or loosened by screwing or unscrewing the fastening bolt 12.
Adopt the technical scheme of the utility model, a plurality of three way valves of 1 cavity UNICOM of cylinder body that the lateral wall of cylinder body 1 set up, and communicate a plurality of three way valves through lantern ring circulation chamber, when filling liquid, pour into liquid into the circulation intracavity through communicating pipe, the communication chamber communicates with through-hole, therefore after liquid fills the communication chamber, just can pour into the valve port of every three way valve 3 into through-hole and the connecting hose 5 that is linked together with the through-hole, and then enter the cavity of cylinder body 1 through the valve port again, a plurality of three way valves can work simultaneously, liquid flow has been strengthened, liquid injection speed has been improved, the piston post 2 rises rapidly; when the height is reduced, the piston column 2 is lowered, the three-way valve 3 is adjusted to an unloading position, liquid in the cavity of the cylinder body flows into the communicating cavity through the valve port of the three-way valve 3 through the connecting hose 5 and then is discharged outwards through the communicating pipe 6, and the three-way valves 3 work simultaneously, so that the liquid flow during unloading can be improved, and the piston column 2 is rapidly lowered; the pressure is quickly increased and released, so that the underground mining safety is ensured; the lantern ring 4 can move along the axial direction of cylinder body 1, because the lantern ring 4 can move, consequently the height of communicating pipe 6 is adjusted to the accessible removal lantern ring 4 to make things convenient for liquid feeding or flowing back, fastener is used for fixing lantern ring 4 locking in cylinder body 1 suitable position department.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (5)
1. The utility model provides a hydraulic prop of advance support convenient to adjust pressure, includes the hydraulic prop body, its characterized in that: the hydraulic prop body be equipped with the cylinder body of arranging the tunnel bottom plate in and the piston post of cylinder body is arranged in to the part, wherein, the piston post can slide along the cylinder body axis, the cylinder body lateral wall still is equipped with a plurality of three way valves with cylinder body cavity UNICOM, the cylinder body outer wall still cup joints the lantern ring that can follow cylinder body axis gliding and be equipped with the circulation chamber, the top of the lantern ring is equipped with a plurality of through-holes that correspond with the three way valve, the valve port that the three way valve had passes through the through-hole intercommunication of coupling hose with the lantern ring, still be equipped with the communicating pipe with circulation chamber intercommunication on the periphery wall of the lantern ring.
2. A pressure-adjustable hydraulic prop for advance support according to claim 1, wherein: one of them distribution of periphery wall of cylinder body with the internal perisporium of lantern ring a plurality of guide ways, another is equipped with the guide bulge that suits with guide way sliding fit, wherein, guide way and guide bulge all extend along the axial of cylinder body.
3. A pressure-adjustable hydraulic prop for advance support according to claim 2, wherein: the lantern ring is provided with a fastening device, wherein the fastening device is used for locking and fixing the lantern ring on the side wall of the cylinder body.
4. A pressure-adjustable hydraulic prop for advance support according to claim 3, wherein: the cylinder body outer wall on still cup joint a third sleeve, the laminating of third telescopic top and lantern ring bottom, third sleeve one side still is equipped with the screw hole, fastening bolt that fastener has passes wherein to support tight cylinder body outer wall.
5. A pressure-adjustable hydraulic prop for advance support according to claim 1, wherein: the lantern ring through hole department be equipped with first sleeve, the valve port department that three way valve has is equipped with the second sleeve, first sleeve and second sleeve pass through coupling hose threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023174943.6U CN214787485U (en) | 2020-12-25 | 2020-12-25 | Hydraulic prop of advance support convenient to pressure regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023174943.6U CN214787485U (en) | 2020-12-25 | 2020-12-25 | Hydraulic prop of advance support convenient to pressure regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787485U true CN214787485U (en) | 2021-11-19 |
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ID=78720361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023174943.6U Active CN214787485U (en) | 2020-12-25 | 2020-12-25 | Hydraulic prop of advance support convenient to pressure regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787485U (en) |
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2020
- 2020-12-25 CN CN202023174943.6U patent/CN214787485U/en active Active
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