CN112611284A - A protector that is convenient for receive and close for colliery blasting - Google Patents
A protector that is convenient for receive and close for colliery blasting Download PDFInfo
- Publication number
- CN112611284A CN112611284A CN202011457542.3A CN202011457542A CN112611284A CN 112611284 A CN112611284 A CN 112611284A CN 202011457542 A CN202011457542 A CN 202011457542A CN 112611284 A CN112611284 A CN 112611284A
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- China
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- plate
- fixedly connected
- protection
- shell
- rotating rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses a folding-convenient protection device for coal mine blasting, which relates to the technical field of coal mine blasting protection devices and comprises a shell and a telescopic protection plate arranged on the shell, wherein a protection mechanism for blasting protection is arranged at the upper end of the shell, the protection mechanism comprises a fixed protection plate fixedly connected to the upper end of the shell, and a top plate is fixedly connected to the upper end of the telescopic protection plate. According to the invention, through adjusting the expansion of the protective net and the telescopic protection plate, flying stones with more heights can be blocked, the protection range is increased, the safety is higher, then the folding work of the protective net and the telescopic protection plate can be automatically realized, dust and stones on the protective net can be shaken off in the folding process, manual cleaning is not needed, the working efficiency is improved, and in addition, the stones flying in the blasting process can be prevented from entering the shell, so that the damage of internal elements of the device is avoided, and the practicability of the device is further improved.
Description
Technical Field
The invention relates to the technical field of coal mine blasting protection devices, in particular to a protection device which is used for coal mine blasting and is convenient to fold.
Background
Coal is a solid fuel, although the concept of environmental protection of human beings is gradually enhanced in recent years, the use of coal mines is reduced to a certain extent, the coal mines are still a common energy source at present, in the process of mining of the coal mines, the coal mines often need to be blasted, the blasting of the coal mines generally accompanies the splashing of broken stones, the broken stones are small in size, the broken stones can splash at a high speed during blasting, if the broken stones are directly hit to a human body, the human body is undoubtedly damaged greatly, and therefore a protective device is generally needed to be used in the blasting of the coal mines.
The existing protective device has a simpler structure, only depends on a firmer protective plate to be matched with the protective net to block flying stones, although the protective device has basic protective effect, however, the existing protective device has a certain height, some flying stones may fly to a high place under the action of huge impact force and then smash to the human body, the protective range is small, secondly, the prior protective device is inconvenient to fold when in use, and in order to ensure the protective effect, the whole volume of the protective device cannot be too small, so that the protective device is inconvenient to move, in addition, the protection device partially equipped with the protective net needs to shake off dust and stones on the protective net for subsequent use when the prior manual work finishes blasting, the manual cleaning wastes time and labor, the practicability of the device is reduced, therefore, a need exists to solve the above problems by providing a collapsible shelter device for coal mine blasting.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a folding protection device for coal mine blasting.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a protector for be convenient for receive and close for colliery blasting, includes the casing and sets up the flexible guard plate on the casing, the casing upper end is equipped with the protection machanism who is used for the blasting protection, protection machanism includes the fixed guard plate of fixed connection in the casing upper end, flexible guard plate upper end fixedly connected with roof, a plurality of solid fixed rings of roof lower extreme fixedly connected with are a plurality of gu fixed ring is equipped with the protection network jointly on the fixed ring, be equipped with the actuating mechanism who is used for driving flexible guard plate lift in the casing, be equipped with the receiving mechanism who is used for accomodating the protection network in the casing, be equipped with the vibrations mechanism that is used for shaking off the upper stone.
Preferably, the driving mechanism rotates two threaded rods connected to the bottom in the shell, the upper ends of the two threaded rods penetrate through the upper end of the shell, the side walls of the telescopic protection plate are symmetrically and fixedly connected with two first baffles which are respectively positioned at two sides of the fixed protection plate, the side walls opposite to the two first baffles are respectively and fixedly connected with a limiting plate, the upper ends of the two threaded rods penetrate through the upper ends of the limiting plates at the same side, the side walls opposite to the two limiting plates are respectively and slidably connected with the two side walls of the fixed protection plate, the side walls of the two threaded rods positioned in the shell are respectively and fixedly sleeved with a first bevel gear, bottom fixedly connected with biax motor in the casing, the equal fixed connection axis of rotation of two output shafts of biax motor, two the equal fixedly connected with of one end that the biax motor was kept away from to the axis of rotation can with the homonymy first bevel gear meshing's second bevel gear.
Preferably, the accommodating mechanism comprises a first vertical plate fixedly connected to the bottom in the shell, the side wall of the first vertical plate is rotatably connected with a first rotating rod, one end of the first rotating rod is fixedly connected with a first gear, the upper end of the shell is provided with an installation opening, the upper end of the shell is fixedly connected with an installation plate through a bolt, the installation plate is arranged right opposite to the installation opening, the lower end of the mounting plate is symmetrically and fixedly connected with two first fixing plates, the side walls of the two first fixing plates are jointly and rotatably connected with a second rotating rod, the second rotating rod is in transmission connection with the first rotating rod through a first belt, one end of the second rotating rod penetrates through the side wall of the first fixing plate at the same side and is fixedly connected with a second gear which can be meshed with the first gear, the protection network lower extreme runs through the installing port and passes through bolt and second dwang lateral wall fixed connection, the protection network is around establishing at second dwang lateral wall.
Preferably, vibrations mechanism includes two second risers of fixed connection in fixed guard plate upper end, two the common rotation of the relative lateral wall of second riser is connected with the third dwang, the equidistant fixed cover of third dwang lateral wall has connect the cam, two third risers of fixed guard plate upper end fixedly connected with, two the common rotation of the relative lateral wall of third riser is connected with the fourth dwang, the third dwang passes through the second belt and is connected with the transmission of fourth dwang, the fixed cover of fourth dwang lateral wall has connect the third gear, flexible guard plate fixedly connected with can with third gear complex pinion rack.
Preferably, the fixing mechanism comprises a second fixing plate fixedly connected to the upper end of the shell, a sliding groove is formed in the upper end of the shell, a sliding block is connected to the sliding groove in a sliding mode, a moving plate is fixedly connected to the upper end of the sliding block, and a blanking plate is fixedly connected to the upper end of the moving plate.
Preferably, two equal fixedly connected with second baffle of the relative lateral wall of first baffle, the equal fixedly connected with third baffle of fixed protection board both sides wall.
Preferably, the side wall of the second fixed plate is elastically connected with the side wall of the moving plate through a plurality of springs, the blanking plate is arranged in an inclined mode, and the mounting plate is located below the blanking plate.
The invention has the following beneficial effects:
1. the protection device is provided with the protection mechanism, two output shafts of the double-shaft motor drive two rotating shafts to rotate, the two rotating shafts drive two threaded rods through the meshing of the first bevel gear and the second bevel gear, the telescopic protection plate moves upwards under the action of the two limiting plates, and the protection net also extends along with the rising of the telescopic protection plate, so that flying stones with more heights can be blocked, the protection range is increased, and the safety is higher;
2. the device is provided with the storage mechanism, the output shaft of the double-shaft motor reversely rotates to drive the two rotating shafts to reversely rotate, the two rotating shafts drive the telescopic protection plate to downwards move, and the second rotating rod reversely rotates to enable the protection net to be wound on the second rotating rod, so that manual winding is not needed, and the working efficiency is improved;
3. the device is provided with the vibration mechanism, the toothed plate is always meshed with the third gear to drive the third gear to rotate in the downward movement process of the telescopic protection plate, the third gear drives the fourth rotating rod to rotate, the fourth rotating rod drives the third rotating rod to rotate through second belt transmission, the third rotating rod drives the third rotating rod to rotate through the cam, and the cam is in contact with the protection net in the rotation process of the cam, so that dust and stones on the protection net can be shaken off, and the working efficiency is further improved;
4. this device has set up fixed establishment, and the stone that the blasting in-process flew rolls along lower flitch inclined plane, avoids the stone to get into in the casing from the installing port for device internal element damages and can't continue work, and then has improved the practicality of device.
Drawings
Fig. 1 is a schematic structural diagram of a collapsible protection device for coal mine blasting according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is a side view of a collapsible shelter for coal mine blasting according to the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 3;
FIG. 5 is an enlarged view of the structure of FIG. 3 at C;
fig. 6 is a top view of a retractable protection plate and a fixed protection plate of the foldable protection device for coal mine blasting according to the present invention.
In the figure: 1 casing, 2 first baffle, 3 fixed guard plate, 4 threaded rods, 5 limiting plates, 6 roof, 7 fixed ring, 8 flexible guard plate, 9 first fixed plate, 10 protection net, 11 first bevel gear, 12 biax motor, 13 axis of rotation, 14 first riser, 15 second bevel gear, 16 first dwang, 17 first gear, 18 second gear, 19 second dwang, 20 mounting panel, 21 second riser, 22 third dwang, 23 cam, 24 third gear, 25 third riser, 26 fourth dwang, 27 pinion rack, 28 flitch, 29 movable plate, 30 second fixed plate, 31 sliding block, 32 sliding tray, 33 second baffle, 34 third baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-6, a folding protection device for coal mine blasting comprises a shell 1 and a telescopic protection plate 8 arranged on the shell 1, wherein a protection mechanism for blasting protection is arranged at the upper end of the shell 1, the protection mechanism comprises a fixed protection plate 3 fixedly connected at the upper end of the shell 1, a top plate 6 is fixedly connected at the upper end of the telescopic protection plate 8, the fixed protection plate 3 and the telescopic protection plate 8 are both made of steel plates with certain strength, for realizing fixed guard plate 3 and flexible guard plate 8 long-term utilization in realizing the operation, can set up the rubber pad at fixed guard plate 3 and flexible guard plate 8 lateral walls, 6 lower extreme fixedly connected with a plurality of solid fixed rings 7 of roof, be equipped with protection network 10 on a plurality of solid fixed rings 7 jointly, protection network 10 upper end can be fixed on solid fixed ring 7 through the rope for protection network 10 can conveniently be changed, and the device can reuse.
Be equipped with the actuating mechanism who is used for the lift of flexible guard plate 8 of drive in casing 1, actuating mechanism rotates two threaded rods 4 of connection bottom in casing 1, 1 upper end of casing is run through to two threaded rod 4 upper ends, two first baffles 2 of 8 lateral wall symmetry fixedly connected with of flexible guard plate, two first baffles 2 are located fixed guard plate 3 both sides respectively, the equal fixedly connected with limiting plate 5 of 2 relative lateral walls of two first baffles, two 4 upper ends of threaded rod all run through the 5 upper ends of limiting plate of homonymy, two 5 relative lateral walls of limiting plate respectively with 3 both sides wall sliding connection of fixed guard plate, limiting plate 5 can't rotate when making two threaded rod 4 rotate, make flexible guard plate 8 only can reciprocate along 4 directions of threaded rod.
In the invention, the side walls of the two threaded rods 4 in the shell 1 are fixedly sleeved with first bevel gears 11, the bottom in the shell 1 is fixedly connected with a double-shaft motor 12, two output shafts of the double-shaft motor 12 are fixedly connected with rotating shafts 13, and one ends of the two rotating shafts 13 far away from the double-shaft motor 12 are fixedly connected with second bevel gears 15 capable of being meshed with the first bevel gears 11 on the same side.
The storage mechanism for storing the protective net 10 is arranged in the shell 1, the storage mechanism comprises a first vertical plate 14 fixedly connected to the bottom in the shell 1, a first rotating rod 16 is rotatably connected to the side wall of the first vertical plate 14, one end of the first rotating rod 16 is fixedly connected with a first gear 17, an installation opening is arranged at the upper end of the shell 1, the upper end of the shell 1 is fixedly connected with a mounting plate 20 through a bolt, the mounting plate 20 is arranged right opposite to the installation opening, two first fixing plates 9 are symmetrically and fixedly connected to the lower end of the mounting plate 20, the side walls of the two first fixing plates 9 are together rotatably connected with a second rotating rod 19, the second rotating rod 19 is in transmission connection with the first rotating rod 16 through a first belt, one end of the second rotating rod 19 penetrates through the side wall of the first fixing plate 9 at the same side and is fixedly connected with a second gear 18 capable of being meshed with the, the protection net 10 is wound on the side wall of the second rotating rod 19, manual arrangement is not needed, work efficiency is improved, the protection net 10 can be fixedly connected with the side wall of the second rotating rod 19 through screwing out bolts, and replacement of the protection net 10 can be achieved.
The shell 1 is provided with a vibration mechanism for shaking off stones on the protective net 10, the vibration mechanism comprises two second vertical plates 21 fixedly connected to the upper end of the fixed protection plate 3, the opposite side walls of the two second vertical plates 21 are jointly and rotatably connected with third rotating rods 22, the side walls of the third rotating rods 22 are fixedly sleeved with cams 23 at equal intervals, the upper end of the fixed protection plate 3 is fixedly connected with two third vertical plates 25, the opposite side walls of the two third vertical plates 25 are jointly and rotatably connected with fourth rotating rods 26, the third rotating rods 22 are in transmission connection with the fourth rotating rods 26 through second belts, the side walls of the fourth rotating rods 26 are fixedly sleeved with third gears 24, the telescopic protection plate 8 is fixedly connected with toothed plates 27 capable of being matched with the third gears 24, the diameter of the cams 23 is smaller than the interval between the third rotating rods 22 and the fourth rotating rods 26, and the phenomenon that the cams 23 collide with the fourth rotating rods 26, when the long ends of the cams 23 rotate until the surfaces of the protection nets 10 contact, the protection nets 10 are arched, and the cams 23 continue to rotate the protection nets 10 to return to the vertical state, so that a shaking action is formed, and dust and stones on the protection nets 10 are shaken off.
Be equipped with the fixed establishment that is used for fixed protection network 10 on casing 1, fixed establishment includes second fixed plate 30 of fixed connection in casing 1 upper end, casing 1 upper end is equipped with sliding tray 32, sliding connection has sliding block 31 in sliding tray 32, sliding block 31 upper end fixedly connected with movable plate 29, flitch 28 under the fixedly connected with of movable plate 29 upper end, second fixed plate 30 lateral wall is through a plurality of springs and 29 lateral walls elastic connection of movable plate, lower flitch 28 slope sets up, mounting panel 20 is located flitch 28 below down, prevent that the blasting in-process stone from getting into casing 1 from the installing port in, make device internal component damage and can't continue work.
In the invention, the opposite side walls of the two first baffle plates 2 are fixedly connected with the second baffle plate 33, and the two side walls of the fixed protection plate 3 are fixedly connected with the third baffle plates 34, so that stones can be prevented from entering between the first baffle plates 2 and the fixed protection plate 3, and the threaded rod 4 can not rotate continuously.
When in use, the telescopic protection plate 8 is accommodated behind the fixed protection plate 3.
When the protective device is used, firstly, the protective device is placed at a proper position, the protective plate 3 is fixed, when the protective area of the protective device cannot meet the current protective requirement, the blanking plate 28 is pulled outwards, so that the pressure on one side of the protective net 10 is relieved on the side wall of the blanking plate 28, the double-shaft motor 12 is started, two output shafts of the double-shaft motor 12 drive the two rotating shafts 13 to rotate, the two rotating shafts 13 drive the two threaded rods 4 through the meshing of the first conical gear 11 and the second conical gear 15, the telescopic protective plate 8 moves upwards under the action of the two limiting plates 5, the first rotating rod 16 is driven to rotate through the first belt transmission in the rotating process of the rotating shafts 13, the first rotating rod 16 drives the second rotating rod 19 to rotate through the meshing of the first gear 17 and the second gear 18, the protective net 10 extends along with the rising of the telescopic protective plate 8, when, the double-shaft motor 12 is turned off, the blanking plate 28 is loosened, the blanking plate 28 moves towards the protective net 10 under the elastic action of the spring, the pressure on the protective net 10 is increased, and stones are prevented from entering the shell 1 from gaps.
When the protective net 10 and the telescopic protection plate 8 need to be retracted, the blanking plate 28 is pulled outwards, so that the pressure on one side of the protective net 10 is relieved from the side wall of the blanking plate 28, the dual-shaft motor 12 is started, the output shaft of the dual-shaft motor 12 rotates reversely to drive the two rotating shafts 13 to rotate reversely, the two rotating shafts 13 drive the telescopic protection plate 8 to move downwards, the second rotating rod 19 rotates reversely to enable the protective net 10 to wind on the second rotating rod 19, in the downward movement process of the telescopic protection plate 8, the toothed plate 27 is always meshed with the third gear 24, so as to drive the third gear 24 to rotate, the third gear 24 drives the fourth rotating rod 26 to rotate, the fourth rotating rod 26 drives the third rotating rod 22 to rotate through the second belt transmission, the third rotating rod 22 drives to rotate through the cam 23, in the rotation process of the cam 23, when the long end of the cam 23 rotates to, the cam 23 continues to rotate the protection net 10 to return to the upright state, thereby forming a shaking action to shake off dust and stones on the protection net 10.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A folding-convenient protection device for coal mine blasting comprises a shell (1) and a telescopic protection plate (8) arranged on the shell (1), and is characterized in that a protection mechanism for blasting protection is arranged at the upper end of the shell (1), the protection mechanism comprises a fixed protection plate (3) fixedly connected to the upper end of the shell (1), a top plate (6) is fixedly connected to the upper end of the telescopic protection plate (8), a plurality of fixing rings (7) are fixedly connected to the lower end of the top plate (6), a protection net (10) is jointly arranged on the plurality of fixing rings (7), a driving mechanism for driving the telescopic protection plate (8) to lift is arranged in the shell (1), a containing mechanism for containing the protection net (10) is arranged in the shell (1), a vibration mechanism for shaking off stones on the protection net (10) is arranged on the shell (1), the shell (1) is provided with a fixing mechanism for fixing the protective net (10).
2. The folding protection device for coal mine blasting according to claim 1, wherein the driving mechanism rotates two threaded rods (4) connected to the bottom in the shell (1), the upper ends of the two threaded rods (4) penetrate through the upper end of the shell (1), the side walls of the telescopic protection plate (8) are symmetrically and fixedly connected with two first baffles (2), the two first baffles (2) are respectively located at two sides of the fixed protection plate (3), the opposite side walls of the two first baffles (2) are respectively and fixedly connected with a limiting plate (5), the upper ends of the two threaded rods (4) penetrate through the upper ends of the limiting plates (5) at the same side, the opposite side walls of the two limiting plates (5) are respectively and slidably connected with the two side walls of the fixed protection plate (3), and the side walls of the two threaded rods (4) located in the shell (1) are respectively and fixedly sleeved with first bevel gears (11), bottom fixedly connected with biax motor (12) in casing (1), two equal fixed connection axis of rotation (13) of output shaft of biax motor (12), two the equal fixedly connected with of one end that biax motor (12) were kept away from in axis of rotation (13) can with the homonymy second bevel gear (15) of first bevel gear (11) meshing.
3. The folding protection device for coal mine blasting according to claim 1, wherein the storage mechanism comprises a first vertical plate (14) fixedly connected to the bottom in the shell (1), a first rotating rod (16) is rotatably connected to the side wall of the first vertical plate (14), a first gear (17) is fixedly connected to one end of the first rotating rod (16), an installation opening is formed in the upper end of the shell (1), a mounting plate (20) is fixedly connected to the upper end of the shell (1) through a bolt, the mounting plate (20) is arranged right opposite to the installation opening, two first fixing plates (9) are symmetrically and fixedly connected to the lower end of the mounting plate (20), a second rotating rod (19) is rotatably connected to the side wall of the two first fixing plates (9) together, and the second rotating rod (19) is in transmission connection with the first rotating rod (16) through a first belt, second dwang (19) one end runs through the homonymy first fixed plate (9) lateral wall and fixedly connected with can with second gear (18) of first gear (17) meshing, protection network (10) lower extreme runs through the installing port and passes through bolt and second dwang (19) lateral wall fixed connection, protection network (10) are around establishing at second dwang (19) lateral wall.
4. A collapsible shelter for a coal mine explosion according to claim 1, it is characterized in that the vibration mechanism comprises two second vertical plates (21) fixedly connected with the upper end of the fixed protection plate (3), the opposite side walls of the two second vertical plates (21) are jointly and rotatably connected with a third rotating rod (22), the side walls of the third rotating rods (22) are fixedly sleeved with cams (23) at equal intervals, the upper ends of the fixed protection plates (3) are fixedly connected with two third vertical plates (25), the opposite side walls of the two third vertical plates (25) are jointly and rotatably connected with a fourth rotating rod (26), the third rotating rod (22) is in transmission connection with the fourth rotating rod (26) through a second belt, a third gear (24) is fixedly sleeved on the side wall of the fourth rotating rod (26), the telescopic protection plate (8) is fixedly connected with a toothed plate (27) which can be matched with the third gear (24).
5. The folding protection device for coal mine blasting according to claim 1, wherein the fixing mechanism comprises a second fixing plate (30) fixedly connected to the upper end of the shell (1), a sliding groove (32) is formed in the upper end of the shell (1), a sliding block (31) is slidably connected in the sliding groove (32), a moving plate (29) is fixedly connected to the upper end of the sliding block (31), and a blanking plate (28) is fixedly connected to the upper end of the moving plate (29).
6. A collapsible shelter for coal mine blasting as claimed in claim 1, wherein a second baffle (33) is fixedly connected to each of the opposite side walls of the two first baffles (2), and a third baffle (34) is fixedly connected to each of the two side walls of the fixed shelter (3).
7. A collapsible shelter for coal mine blasting as claimed in claim 5, wherein the side wall of the second fixed plate (30) is resiliently connected to the side wall of the moving plate (29) by a plurality of springs, the blanking plate (28) is inclined and the mounting plate (20) is located below the blanking plate (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011457542.3A CN112611284B (en) | 2020-12-10 | 2020-12-10 | A protector that is used for colliery blasting to be convenient for receive and close |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011457542.3A CN112611284B (en) | 2020-12-10 | 2020-12-10 | A protector that is used for colliery blasting to be convenient for receive and close |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112611284A true CN112611284A (en) | 2021-04-06 |
| CN112611284B CN112611284B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011457542.3A Active CN112611284B (en) | 2020-12-10 | 2020-12-10 | A protector that is used for colliery blasting to be convenient for receive and close |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112611284B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047320A (en) * | 2021-05-17 | 2021-06-29 | 王常青 | Road slope surface protection device |
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| CN210689416U (en) * | 2019-09-03 | 2020-06-05 | 中国人民解放军陆军工程大学 | Engineering protection net structure for blasting landmine |
| CN210833279U (en) * | 2019-07-16 | 2020-06-23 | 浙江安盛爆破工程有限公司 | Comprehensive blasting protection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5415641B1 (en) * | 2013-05-23 | 2014-02-12 | 貞男 網島 | Protection device such as rockfall |
| CN107907022A (en) * | 2017-12-11 | 2018-04-13 | 贵州大学 | It is a kind of for colliery blasting easy to the protective device that folds |
| CN109300377A (en) * | 2018-10-23 | 2019-02-01 | 山东大学 | The rock-fall protection net pilot model apparatus of adjustable-angle |
| CN209541589U (en) * | 2019-01-28 | 2019-10-25 | 保利新联爆破工程集团有限公司 | A kind of surface blasting orientation shading type device for reducing dust |
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| CN210529520U (en) * | 2019-08-28 | 2020-05-15 | 陈德强 | Protection device for stopping blasting rock tumbling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047320A (en) * | 2021-05-17 | 2021-06-29 | 王常青 | Road slope surface protection device |
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| Publication number | Publication date |
|---|---|
| CN112611284B (en) | 2023-06-20 |
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