CN220705726U - Protective bracket for coal mine mining - Google Patents
Protective bracket for coal mine mining Download PDFInfo
- Publication number
- CN220705726U CN220705726U CN202321798397.4U CN202321798397U CN220705726U CN 220705726 U CN220705726 U CN 220705726U CN 202321798397 U CN202321798397 U CN 202321798397U CN 220705726 U CN220705726 U CN 220705726U
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- plate
- rod
- unlocking
- groove
- locking
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- 239000003245 coal Substances 0.000 title claims abstract description 43
- 238000005065 mining Methods 0.000 title claims abstract description 19
- 230000001681 protective effect Effects 0.000 title claims description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000006978 adaptation Effects 0.000 claims 2
- 238000000605 extraction Methods 0.000 claims 1
- 230000007306 turnover Effects 0.000 abstract description 12
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Component Parts Of Construction Machinery (AREA)
Abstract
The utility model discloses a protection support for coal mine mining, which relates to the technical field of coal mine mining and comprises a bottom plate, a first connecting rod, a second connecting rod and a top plate, wherein a hydraulic cylinder is arranged between the bottom plate and the top plate, a turnover plate is rotationally connected to the top plate, a guard plate is rotationally connected to the bottom plate, and the protection support further comprises: the locking mechanism comprises a locking rod, a groove is formed in the overturning plate, a sliding groove matched with the locking rod is formed in the groove, the locking rod is connected in the sliding groove in a sliding mode, a connecting plate is fixedly connected to the guard plate, a clamping groove matched with the locking rod is formed in the connecting plate, the locking rod is matched with the clamping groove in a plugging mode, a retaining plate is fixedly connected to the locking rod, and a spring is arranged between the retaining plate and the inner wall of the groove. Through the grafting cooperation of locking lever and draw-in groove of locking mechanism, can make the upset board and backplate lock, and become a whole after upset board and the backplate lock to shelter from the coal piece of working face, prevent that the staff of mining from being smashed by the coal piece.
Description
Technical Field
The utility model relates to the technical field of coal mine mining, in particular to a protective bracket for coal mine mining.
Background
Coal mines are areas where mankind is mining coal resources in coal-rich mining areas, and are generally divided into underground coal mines and open pit coal mines; when the coal seam is far away from the ground surface, coal is generally selected to be extracted from an underground excavation roadway, which is an underground coal mine; when the distance between the coal bed and the ground surface is very close, the earth surface soil layer is generally peeled off directly to excavate coal, and the coal is an open pit coal mine; most of coal mines in China belong to underground coal mines.
The publication number is: CN216043793U, publication date: 2022, 3 month 15 days, including protection support, base and pneumatic cylinder, pneumatic cylinder fixed connection is in the four corners on protection support bottom right side, the bottom fixed connection of pneumatic cylinder is at the base right side top, the base is located the bottom of protection support. According to the utility model, the supporting rod is arranged to drive the telescopic rod, the pressing block and the first pressure sensor to sense the supported hydraulic cylinder, and the elastic force detection assembly is also arranged to sense the place where the top of the protective support is in contact with the mine hole, so that the alarm is carried out through the infrared alarm assembly when the sensed pressure exceeds the standard, the problem that the existing protective support has no pressure detection alarm function, so that even if a worker slightly presses down a coal mine, people cannot know, can not check in time, but can ignore, thereby causing a certain potential safety hazard, and the effect of pressure detection alarm is achieved.
In the prior art of the above patent, the coal cutter is located on one side of the working face, no protection plate is used for protecting workers in coal mining, a coal discharging opening is formed on one side of the working face, when the coal discharging opening is blocked due to oversized coal blocks, the coal blocks can be optionally exploded according to the situation by using explosive, and the workers can be crushed by the coal fragments.
Disclosure of Invention
The utility model aims to provide a protective bracket for coal mine excavation, which aims to solve the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a protection support for coal mine mining, includes the bottom plate, rotate on the bottom plate and be connected with first connecting rod, rotate on the first connecting rod and be connected with the second connecting rod, rotate on the second connecting rod and be connected with the roof, be provided with the pneumatic cylinder between bottom plate and the roof, rotate on the roof and be connected with the upset board, rotate on the bottom plate and be connected with the backplate, still include:
the locking mechanism comprises a locking rod, a groove is formed in the overturning plate, a sliding groove matched with the locking rod is formed in the groove, the locking rod is slidably connected in the sliding groove, a connecting plate is fixedly connected to the guard plate, a clamping groove matched with the locking rod is formed in the connecting plate, the locking rod is matched with the clamping groove in an inserting mode, a retaining plate is fixedly connected to the locking rod, and a spring is arranged between the retaining plate and the inner wall of the groove.
Further, the unlocking mechanism is further arranged in the groove and comprises a connecting rod fixedly connected to the locking rod, the connecting rod is fixedly connected with an unlocking rod, one end of the unlocking rod is semicircular, an unlocking disc is rotationally connected to the groove, an unlocking groove matched with the unlocking rod is formed in the unlocking disc, and a deflector rod is eccentrically and fixedly connected to the unlocking disc.
Further, the radius of the unlocking groove is smaller than the radius of a semicircle at one end of the unlocking rod.
Further, an electric push rod is arranged between the top plate and the turnover plate.
The electric push rod comprises a top plate, a connecting seat, a base, a rotating seat and an output end, wherein the bottom surface of the top plate is fixedly connected with the connecting seat, the base of the electric push rod is rotationally connected to the connecting seat, the rotating seat is fixedly connected to the rotating plate, and the output end of the electric push rod is rotationally connected to the rotating seat.
Further, the locking rod is fixedly connected with a limiting plate used for limiting the locking rod in the chute.
Compared with the prior art, the protective bracket for coal mine mining provided by the utility model has the advantages that the turnover plate and the guard plate can be locked through the insertion and connection cooperation of the locking rod of the locking mechanism and the clamping groove, and the turnover plate and the guard plate are integrated after being locked, so that coal scraps on a working surface are shielded, and mining workers are prevented from being injured by the coal scraps.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of connection of a roll-over plate and a guard plate according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a connecting plate, a locking mechanism and an unlocking mechanism according to an embodiment of the present utility model.
Reference numerals illustrate: 1. a bottom plate; 2. a first link; 3. a second link; 4. a top plate; 5. a hydraulic cylinder; 6. a turnover plate; 61. a groove; 7. a guard board; 71. a connecting plate; 711. a clamping groove; 8. a locking mechanism; 81. a locking lever; 82. a retaining plate; 83. a spring; 9. an unlocking mechanism; 91. a connecting rod; 92. unlocking the rod; 93. unlocking the disc; 931. unlocking grooves; 94. a deflector rod.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1-3, the protection support for coal mining provided by the embodiment of the utility model comprises a bottom plate 1, wherein a first connecting rod 2 is rotatably connected to the bottom plate 1, a second connecting rod 3 is rotatably connected to the first connecting rod 2, a top plate 4 is rotatably connected to the second connecting rod 3, a hydraulic cylinder 5 is arranged between the bottom plate 1 and the top plate 4, a turnover plate 6 is rotatably connected to the top plate 4, and an electric push rod is arranged between the top plate 4 and the turnover plate 6; specifically, the bottom surface of the top plate 4 is fixedly connected with a connecting seat, the base of the electric push rod is rotationally connected to the connecting seat, the turnover plate 6 is fixedly connected with a rotating seat, and the output end of the electric push rod is rotationally connected to the rotating seat; the last rotation of bottom plate 1 is connected with backplate 7, and upset board 6 is connected with backplate 7 is detachable, still includes: a locking mechanism 8; the locking mechanism 8 is used for locking the turnover plate 6 and the guard plate 7 and comprises a locking rod 81, a groove 61 is formed in the turnover plate 6, the groove 61 is communicated with a chute matched with the locking rod 81, the locking rod 81 is fixedly connected with a limiting plate used for limiting the locking rod 81 in the chute, and the limiting plate can prevent the elastic force of a spring 83 from driving the locking rod 81 to slide out of the chute; preferably, one end of the locking rod 81 inserted into the clamping groove 711 is semicircular, and the locking rod can be conveniently matched with the clamping groove 711 in a clamping way; the locking rod 81 is connected in the chute in a sliding way, the guard plate 7 is fixedly connected with the connecting plate 71, the connecting plate 71 is provided with a clamping groove 711 matched with the locking rod 81, the locking rod 81 is in plug-in fit with the clamping groove 711, the locking rod 81 is fixedly connected with the retaining plate 82, and a spring 83 is arranged between the retaining plate 82 and the inner wall of the groove 61, and specifically, the spring 83 is a pressure spring; more specifically, one end of the spring 83 is fixedly connected to the retaining plate 82, and the other end is fixedly connected to the inner wall of the groove 61.
An unlocking mechanism 9 is further arranged in the groove 61, and the unlocking mechanism 9 is used for extracting the locking rod 81 from the clamping groove 711 so as to achieve the purpose of unlocking the overturning plate 6 and the guard plate 7; the unlocking mechanism 9 comprises a connecting rod 91 fixedly connected to the locking rod 81, an unlocking rod 92 is fixedly connected to the connecting rod 91, one end of the unlocking rod 92 is semicircular, an unlocking disc 93 is rotationally connected to the groove 61, and specifically, the unlocking disc 93 is rotationally connected to the groove 61 through a rotating shaft; more specifically, the rotating shaft is rotatably connected in the groove 61, and the rotating shaft is fixedly connected coaxially with the unlocking disc 93; the unlocking disc 93 is provided with an unlocking groove 931 which is matched with the unlocking lever 92, and preferably, the radius of the unlocking groove 931 is smaller than the radius of a semicircle at one end of the unlocking lever 92, so that the unlocking lever 92 can be easily unlocked from the unlocking groove 931; a deflector rod 94 is eccentrically and fixedly connected to the unlocking disc 93.
Working principle: during the use, place a plurality of protection brackets to suitable position to paste and lean on together, start pneumatic cylinder 5, the output of pneumatic cylinder 5 drives roof 4 and rises, the upper surface butt of roof 4 plays the effect of support at the mine tunnel upper surface, wherein, first connecting rod 2 and second connecting rod 3 rotate at bottom plate 1 and roof 4 respectively along with the rising of roof 4, carry out the adjustment of angle, start electric putter, electric putter's output drive upset board 6 overturns, and the butt is on the lateral wall in mine tunnel, the region that lies in between pneumatic cylinder 5 and the upset board 6 on the bottom plate 1 is staff's activity region.
Through rotating backplate 7 on bottom plate 1, make connecting plate 71 butt locking pole 81 on the backplate 7, when connecting plate 71 butt locking pole 81, spring 83 takes place elastic deformation, drive locking pole 81 to slide to spout inside, when the draw-in groove 711 of connecting plate 71 moves to locking pole 81 position department, spring 83 resumes elastic deformation, drive locking pole 81 to slide out from spout inside to the butt is in the inside of draw-in groove 711, accomplish turnover plate 6 and backplate 7 and lock, and turnover plate 6 and backplate 7 lock the back, form an organic whole, can shelter from the coal piece, prevent that the staff from being injured.
During unlocking, the shift lever 94 is shifted to enable the shift lever 94 to drive the unlocking disc 93 to rotate in the groove 61 by taking the axis of the rotating shaft as the center, in the rotating process, the inner wall of the unlocking groove 931 is abutted against the unlocking lever 92, the unlocking lever 92 moves horizontally after being abutted against the unlocking lever 92, the spring 83 deforms elastically and contracts, when the unlocking groove 931 of the unlocking disc 93 rotates to be completely separated from the unlocking lever 92, at the moment, the unlocking lever 92 is abutted against the circumferential surface of the unlocking disc 93, meanwhile, the unlocking lever 92 drives the connecting rod 91 to drive the locking rod 81 to move out of the clamping groove 711, unlocking of the overturning plate 6 and the guard plate 7 is completed, the guard plate 7 rotates on the bottom plate 1 until the guard plate 7 is parallel to the bottom plate 1, and the guard plate 7 is abutted against the upper surface of the bottom plate 1.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (6)
1. The utility model provides a protection support for coal mine mining, includes bottom plate (1), its characterized in that, rotate on bottom plate (1) and be connected with first connecting rod (2), rotate on first connecting rod (2) and be connected with second connecting rod (3), rotate on second connecting rod (3) and be connected with roof (4), be provided with pneumatic cylinder (5) between bottom plate (1) and roof (4), rotate on roof (4) and be connected with upset board (6), rotate on bottom plate (1) and be connected with backplate (7), still include:
locking mechanism (8), it includes locking pole (81), set up fluted (61) on upset board (6), recess (61) intercommunication have with the spout of locking pole (81) looks adaptation, locking pole (81) sliding connection is in the spout, fixedly connected with connecting plate (71) on backplate (7), set up draw-in groove (711) with locking pole (81) looks adaptation on connecting plate (71), locking pole (81) are pegged graft with draw-in groove (711) and are cooperated, fixedly connected with butt plate (82) on locking pole (81), be provided with spring (83) between butt plate (82) and the inner wall of recess (61).
2. The protection support for coal mining according to claim 1, wherein an unlocking mechanism (9) is further arranged in the groove (61), the unlocking mechanism (9) comprises a connecting rod (91) fixedly connected to a locking rod (81), an unlocking rod (92) is fixedly connected to the connecting rod (91), one end of the unlocking rod (92) is semicircular, an unlocking disc (93) is rotatably connected to the groove (61), an unlocking groove (931) matched with the unlocking rod (92) is formed in the unlocking disc (93), and a deflector rod (94) is eccentrically and fixedly connected to the unlocking disc (93).
3. A coal mine extraction protective bracket according to claim 2, wherein the unlocking groove (931) has a radius smaller than a radius of a semicircle at one end of the unlocking lever (92).
4. The protective bracket for coal mining according to claim 1, wherein an electric push rod is arranged between the top plate (4) and the turning plate (6).
5. The protective bracket for coal mining according to claim 4, wherein the bottom surface of the top plate (4) is fixedly connected with a connecting seat, the base of the electric push rod is rotatably connected to the connecting seat, the turning plate (6) is fixedly connected with a rotating seat, and the output end of the electric push rod is rotatably connected to the rotating seat.
6. The protective bracket for coal mining according to claim 1, wherein the locking rod (81) is fixedly connected with a limiting plate for limiting the locking rod (81) in the chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321798397.4U CN220705726U (en) | 2023-07-10 | 2023-07-10 | Protective bracket for coal mine mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321798397.4U CN220705726U (en) | 2023-07-10 | 2023-07-10 | Protective bracket for coal mine mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220705726U true CN220705726U (en) | 2024-04-02 |
Family
ID=90437152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321798397.4U Active CN220705726U (en) | 2023-07-10 | 2023-07-10 | Protective bracket for coal mine mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220705726U (en) |
-
2023
- 2023-07-10 CN CN202321798397.4U patent/CN220705726U/en active Active
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| GR01 | Patent grant |