CN219674945U - Plugging device for coal mine roof cutting - Google Patents
Plugging device for coal mine roof cutting Download PDFInfo
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- CN219674945U CN219674945U CN202321355945.6U CN202321355945U CN219674945U CN 219674945 U CN219674945 U CN 219674945U CN 202321355945 U CN202321355945 U CN 202321355945U CN 219674945 U CN219674945 U CN 219674945U
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- fixedly connected
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- air
- plugging device
- cavity
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- 239000003245 coal Substances 0.000 title claims abstract description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 10
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 10
- 241001330002 Bambuseae Species 0.000 claims description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 10
- 239000011425 bamboo Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 210000004712 air sac Anatomy 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a plugging device for coal mine roof cutting, which relates to the technical field of roof cutting plugging and comprises a shell, wherein an external thread cylinder is detachably connected inside the shell, an air sac is fixedly connected outside the external thread cylinder, and a plurality of centralizers are fixedly connected outside the shell at equal intervals.
Description
Technical Field
The utility model relates to the technical field of roof cutting and plugging, in particular to a plugging device for coal mine roof cutting.
Background
In the coal mining process, the stoped place requires the roof to collapse in time so as to lighten the pressure of the roof in the operation area, ensure the safety of the operation area, and after the pillars outside the necessary operation area are prop-backed, the roof is required to collapse according to a line which is required to be set, the area where the roof collapses is one side of the line which is a supporting area, the boundary line is the roof collapse line, namely the roof cutting line, and the technical method is adopted to enable one side to be the supporting area, the other side to be the roof collapse area and the roof cutting area. The traditional roof-cutting roadway protection technology adopts mine explosive to carry out blasting operation, however, as gunpowder is added in the hole, the action time is long, the generated gas is more, and the hole plugging method of stemming or cement cannot meet the construction requirement.
Chinese patent CN218524038U discloses a plugging device for colliery roof cutting, including the shutoff post, the outside evenly distributed of shutoff post has a plurality of blocking parts, the reinforcement part is installed to the shutoff post afterbody, the outside of shutoff post is close to the reinforcement part and is installed metal seal ring, the shutoff post is corresponding to alternate to colliery porthole in, the utility model realizes back reinforcing support with the help of the laminating contact of shutoff post and stemming, the shutoff stability of colliery porthole has been promoted, through evenly distributed have a plurality of blocking parts on the shutoff post, can strengthen the contact of shutoff post and colliery porthole, the interlock locking force of shutoff post and colliery porthole has been promoted, be equipped with the reinforcement part simultaneously at the shutoff post afterbody, the bollard embedding colliery porthole on it has further promoted this plugging device's stability, can realize strengthening the locking state, realized the multiple spot synchronous locking treatment to this plugging device under the cooperation of blocking part, the whole effect has been strengthened.
However, the front end of the patent still adopts traditional stemming to carry out plugging, so that the operation flow is complex, the buffering effect is not achieved, meanwhile, the hydraulic cylinder drives the thickened ground nail to penetrate into the coal mine blasthole, the contact area between the plugging column and the coal mine blasthole is increased, and a plurality of hydraulic cylinders are required to act simultaneously, so that the use cost of the whole equipment is higher.
The utility model comprises the following steps:
the utility model aims to solve the problems and provide a plugging device for coal mine roof cutting, which solves the problems in the background art.
In order to solve the problems, the utility model provides a technical scheme that:
the utility model provides a plugging device for colliery is cut top, includes the casing, the inside of casing can be dismantled and is connected with the external screw thread section of thick bamboo, the outside fixedly connected with air bag of external screw thread section of thick bamboo, the outside equidistance fixedly connected with of casing is a plurality of centralizers, the outside of centralizer can be dismantled and is connected with the closing plate, the inside sliding connection of casing has a plurality of extension bars, the inside of casing just is located the inboard rotation of extension bar and is connected with the ratchet, the outside equidistance fixedly connected with a plurality of deflector of ratchet, and every the deflector all contacts with one side of corresponding extension bar, the inside rotation of casing is connected with the pawl that uses with the ratchet cooperation, the inside equidistance of casing is provided with a plurality of retraction subassemblies, the inside of casing is equipped with the detection subassembly that uses with the air bag cooperation.
As a preferable scheme of the utility model, an air passage is arranged in the shell, the air passage is communicated with the external thread cylinder, and a one-way valve is arranged in the air passage.
As a preferable scheme of the utility model, the retraction assembly comprises a mounting cavity, a plurality of mounting cavities are formed in the housing at equal intervals, each mounting cavity is located on the outer side of a corresponding extension rod, a sliding plate is fixedly connected to the outer side of the extension rod and located in the mounting cavity, the sliding plate is connected with the mounting cavity in a sliding mode, a first spring is sleeved between the sliding plate and the inner wall of the mounting cavity, and the first spring is located on one side, far away from the ratchet wheel, of the sliding plate.
As a preferable scheme of the utility model, the detection assembly comprises an air cavity, two air cavities are arranged in the external thread cylinder, a through hole is formed in the external thread cylinder and located between the air cavity and the air bag, a piston is connected in a sliding manner in the air cavity, a fixing ring is fixedly connected in the air cavity, a second spring is arranged between the fixing ring and the piston, and a pressure sensor is fixedly connected to one side, far away from the piston, of the inner wall of the air cavity.
As a preferable scheme of the utility model, a retainer ring is fixedly connected to the outside of the shell and positioned on one side of the centralizer, a plurality of screw rods are fixedly connected to one side of the sealing plate, and each screw rod penetrates through the retainer ring and is in threaded connection with a nut.
As a preferable scheme of the utility model, a plurality of elastic sheets are fixedly connected to the outer part of the shell at equal intervals, and two handles are symmetrically and fixedly connected to one end of the shell, which is far away from the external thread cylinder.
The beneficial effects of the utility model are as follows: can replace traditional stemming to carry out the shutoff in advance to the stemming through the external screw thread section of thick bamboo cooperation air bag that sets up at the casing anterior segment, not only convenient operation, but also have cushioning effect, simultaneously, can also detect the pressure of retracting in the stemming under the effect of detection component, can advance early warning, use through ratchet cooperation pawl and deflector, can push into the ore deposit stemming inside simultaneously with a plurality of extension bars of casing, its mechanical structure is simple moreover, with low costs stability is high, can make things convenient for the retraction of extension bar under the auxiliary action of retraction component, and then conveniently take out equipment from the stemming.
Description of the drawings:
for ease of illustration, the utility model is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic view of the internal structure of the present utility model;
FIG. 2 is a front view of the housing of the present utility model;
FIG. 3 is an enlarged view of the utility model at A in FIG. 2;
FIG. 4 is an enlarged view of the utility model at B in FIG. 3;
fig. 5 is an enlarged view of the present utility model at C in fig. 3.
In the figure: 1. a housing; 2. an external thread cylinder; 3. an air bag; 4. an airway; 5. an extension rod; 6. a ratchet wheel; 7. a pawl; 8. a guide plate; 9. a retraction assembly; 91. a mounting cavity; 92. a slide plate; 93. a first spring; 10. a one-way valve; 11. a detection assembly; 111. an air cavity; 112. a through hole; 113. a piston; 114. a fixing ring; 115. a second spring; 116. a pressure sensor; 12. a centralizer; 13. a retainer ring; 14. a sealing plate; 15. a screw; 16. a screw cap; 17. an elastic sheet; 18. a handle.
The specific embodiment is as follows:
the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Examples:
referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a plugging device for colliery is cut top, which comprises a housin 1, the inside of casing 1 is dismantled and is connected with external screw thread section of thick bamboo 2, external fixedly connected with air bag 3 of external screw thread section of thick bamboo 2, the outside equidistance fixedly connected with a plurality of centralizers 12 of casing 1, the outside of centralizer 12 is dismantled and is connected with closing plate 14, the inside sliding connection of casing 1 has a plurality of extension bars 5, the inside of casing 1 just is located the inboard rotation of extension bar 5 and is connected with ratchet 6, the outside equidistance fixedly connected with of ratchet 6 a plurality of deflector 8, and every deflector 8 all contacts with one side of corresponding extension bar 5, the inside rotation of casing 1 is connected with the pawl 7 that uses with ratchet 6 cooperation, the inside equidistance of casing 1 is provided with a plurality of retraction subassemblies 9, the inside of casing 1 is equipped with the detection subassembly 11 that uses with air bag 3 cooperation.
Through the structure: can replace traditional stemming to carry out the shutoff in advance to the porthole through the external screw thread section of thick bamboo 2 cooperation air bag 3 that sets up at casing 1 anterior segment, not only convenient operation, but also have cushioning effect, use through ratchet 6 cooperation pawl 7 and deflector 8, can push the inside a plurality of extension bars 5 of casing 1 simultaneously into the ore deposit porthole, its mechanical structure is simple moreover with low costs high stability.
Further, the inside of casing 1 is provided with air flue 4, communicates between air flue 4 and the external screw thread section of thick bamboo 2, and the inside of air flue 4 is provided with check valve 10, conveniently inflates to the inside of air bag 3, and then makes its inflation advance the shutoff to the porthole, and under the effect of check valve 10, can prevent the inside gas leakage of air bag 3, and then ensures the tightness of shutoff.
Further, retract the subassembly 9 and include installation cavity 91, a plurality of installation cavities 91 have been seted up to the inside equidistance of casing 1, and every installation cavity 91 all is located the outside that corresponds extension rod 5, and the outside of extension rod 5 just is located the inside fixedly connected with slide 92 in installation cavity 91, sliding connection between slide 92 and the installation cavity 91, the cover is equipped with first spring 93 between slide 92 and the inner wall in installation cavity 91, and first spring 93 is located the side that slide 92 kept away from ratchet 6.
Through the structure: when the guide plate 8 loses pressure on the extension rod 5, the first spring 93 drives the sliding plate 92 to slide in the installation cavity 91, so that the extension rod 5 is pulled into the shell 1 from a roadway, and the equipment is conveniently taken out from a blasthole.
Further, the detection assembly 11 comprises an air cavity 111, two air cavities 111 are arranged in the outer thread cylinder 2, a through hole 112 is formed in the outer thread cylinder 2 and located between the air cavity 111 and the air bag 3, a piston 113 is slidably connected in the air cavity 111, a fixed ring 114 is fixedly connected in the air cavity 111, a second spring 115 is arranged between the fixed ring 114 and the piston 113, and a pressure sensor 116 is fixedly connected to one side, away from the piston 113, of the inner wall of the air cavity 111.
Through the structure: the air bag 3 is pressed and the gas in the air bag enters the air cavity 111 through the through hole 112 and presses the piston 113, the piston 113 moves in the air cavity 111 and presses the second spring 115, the pressure in the air cavity 111 is increased and presses the pressure sensor 116 along with the decrease of the space in the air cavity 111, and when the pressure sensor 116 is excessively pressed, an alarm is triggered to prompt, early warning can be performed in advance, and accidents are prevented.
Further, the outside of casing 1 just is located one side fixedly connected with retaining ring 13 of centralizer 12, and one side fixedly connected with a plurality of screw rods 15 of closing plate 14, every screw rod 15 all runs through retaining ring 13 and threaded connection has nut 16, can fix closing plate 14, and then prevents that it from droing from the outside of casing 1.
Further, a plurality of elastic pieces 17 of outside equidistance fixedly connected with of casing 1, elastic piece 17 atress warp when casing 1 inserts to the porthole inside, and the frictional force that casing 1 pulled out from the porthole inside can be improved to elastic piece 17 after the deformation, can assist the promotion to the stability of equipment, and casing 1 keeps away from two handles 18 of one end symmetry fixedly connected with of external screw thread section of thick bamboo 2, conveniently takes the operation to whole equipment.
Working principle: the air bag 3 and the retainer ring 13 with corresponding specifications are selected according to the specifications of the blast hole, then the retainer ring 13 is inserted at the outer side of the centralizer 12 outside the shell 1, the retainer ring 13 is contacted with the sealing plate 14, then the retainer ring 13 is locked by the screw 15 and the nut 16, then the external thread cylinder 2 at one side of the air bag 3 is arranged inside the shell 1, the equipment is inserted into the blast hole of the shell by the handle 18, the air bag 3 is inflated by the air channel 4 to be inflated to seal the blast hole, then the ratchet wheel 6 inside the shell 1 is rotated, the guide plate 8 is driven to rotate when the ratchet wheel 6 rotates, the guide plate 8 can push the extension rod 5 to move inside the shell 1 when rotating, then the extension rod 5 is inserted into a mine channel outside the blast hole to position the shell 1, the extension rod 5 drives the sliding plate 92 to squeeze the first spring 93 when moving, the pawl 7 in the shell 1 can prevent the guide plate 8 from rotating, so that the stability of the extension rod 5 can be ensured, the elastic sheet 17 is stressed and deformed when the shell 1 is inserted into the blasthole, the deformed elastic sheet 17 can improve the friction force of the shell 1 pulled out of the blasthole, when the gas in the blasthole is extruded into a roadway, the air bag 3 at the front end can be subjected to buffer treatment, meanwhile, the gas in the air bag 3 is pressed into the air cavity 111 through the through hole 112 and presses the piston 113, the piston 113 moves in the air cavity 111 and presses the second spring 115, the pressure in the air cavity 111 is increased and presses the pressure sensor 116 along with the reduction of the space in the air cavity 111, when the pressure sensor 116 is excessively pressed, an alarm is triggered to prompt, the sealing plate 14 can perform secondary sealing after the air bag 3 is failed, and when equipment is required to be taken out from the blasthole, the pawl 7 is separated from the guide plate 8 and drives the ratchet 6 to rotate, at the moment, the guide plate 8 loses pressure on the extension rod 5, meanwhile, the first spring 93 drives the sliding plate 92 to slide in the installation cavity 91, the extension rod 5 is pulled into the shell 1 from a roadway, and then the equipment can be pulled out of a blast hole through the handle 18.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a plugging device for colliery is cut top, its characterized in that, including casing (1), the inside of casing (1) can be dismantled and is connected with external screw thread section of thick bamboo (2), the outside fixedly connected with air bag (3) of external screw thread section of thick bamboo (2), the outside equidistance fixedly connected with of casing (1) is a plurality of centralizers (12), the outside of centralizer (12) can be dismantled and be connected with closing plate (14), the inside sliding connection of casing (1) has a plurality of extension bars (5), the inside of casing (1) just is located the inboard rotation of extension bar (5) and is connected with ratchet (6), the outside equidistance fixedly connected with a plurality of deflector (8), and every deflector (8) all contact with one side of corresponding extension bar (5), the inside rotation of casing (1) is connected with pawl (7) that use with ratchet (6) cooperation, the inside equidistance of casing (1) is provided with a plurality of retraction components (9), the inside of casing (1) is equipped with detects subassembly (11) that use with air bag (3).
2. The plugging device for coal mine roof cutting according to claim 1, wherein an air passage (4) is arranged in the shell (1), the air passage (4) is communicated with the external thread cylinder (2), and a one-way valve (10) is arranged in the air passage (4).
3. The plugging device for coal mine roof cutting according to claim 1, wherein the retraction assembly (9) comprises a mounting cavity (91), a plurality of mounting cavities (91) are formed in the housing (1) at equal intervals, each mounting cavity (91) is located at the outer side of the corresponding extension rod (5), a sliding plate (92) is fixedly connected to the outer side of the extension rod (5) and located in the mounting cavity (91), the sliding plate (92) is slidably connected with the mounting cavity (91), a first spring (93) is sleeved between the sliding plate (92) and the inner wall of the mounting cavity (91), and the first spring (93) is located at one side, far away from the ratchet wheel (6), of the sliding plate (92).
4. The plugging device for coal mine roof cutting according to claim 1, wherein the detection assembly (11) comprises an air cavity (111), two air cavities (111) are arranged in the outer thread cylinder (2), a through hole (112) is formed in the outer thread cylinder (2) and located between the air cavity (111) and the air bag (3), a piston (113) is slidably connected in the air cavity (111), a fixing ring (114) is fixedly connected in the air cavity (111), a second spring (115) is arranged between the fixing ring (114) and the piston (113), and a pressure sensor (116) is fixedly connected to one side, away from the piston (113), of the inner wall of the air cavity (111).
5. A plugging device for roof cutting in coal mines according to claim 1, wherein a retainer ring (13) is fixedly connected to the outside of the housing (1) and located at one side of the centralizer (12), a plurality of screw rods (15) are fixedly connected to one side of the sealing plate (14), and each screw rod (15) penetrates through the retainer ring (13) and is in threaded connection with a screw cap (16).
6. The plugging device for coal mine roof cutting according to claim 1, wherein a plurality of elastic sheets (17) are fixedly connected to the outer part of the shell (1) at equal intervals, and two handles (18) are symmetrically and fixedly connected to one end, far away from the external thread cylinder (2), of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321355945.6U CN219674945U (en) | 2023-05-31 | 2023-05-31 | Plugging device for coal mine roof cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321355945.6U CN219674945U (en) | 2023-05-31 | 2023-05-31 | Plugging device for coal mine roof cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219674945U true CN219674945U (en) | 2023-09-12 |
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ID=87897399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321355945.6U Active CN219674945U (en) | 2023-05-31 | 2023-05-31 | Plugging device for coal mine roof cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219674945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117001079A (en) * | 2023-09-15 | 2023-11-07 | 泉州市泉志轻工机械有限公司 | Automatic attack tooth and detect categorised tooth machine of attacking |
-
2023
- 2023-05-31 CN CN202321355945.6U patent/CN219674945U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117001079A (en) * | 2023-09-15 | 2023-11-07 | 泉州市泉志轻工机械有限公司 | Automatic attack tooth and detect categorised tooth machine of attacking |
| CN117001079B (en) * | 2023-09-15 | 2023-12-29 | 泉州市泉志轻工机械有限公司 | Automatic attack tooth and detect categorised tooth machine of attacking |
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