CN111721175A - Mine blasting rubble protector - Google Patents

Mine blasting rubble protector Download PDF

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Publication number
CN111721175A
CN111721175A CN202010579708.2A CN202010579708A CN111721175A CN 111721175 A CN111721175 A CN 111721175A CN 202010579708 A CN202010579708 A CN 202010579708A CN 111721175 A CN111721175 A CN 111721175A
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CN
China
Prior art keywords
fixedly connected
plate
guard plate
fixed
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010579708.2A
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Chinese (zh)
Other versions
CN111721175B (en
Inventor
单春雨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway 19th Bureau Group Mining Investment Co Ltd
Original Assignee
China Railway 19th Bureau Group Mining Investment Co Ltd
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Publication date
Application filed by China Railway 19th Bureau Group Mining Investment Co Ltd filed Critical China Railway 19th Bureau Group Mining Investment Co Ltd
Priority to CN202010579708.2A priority Critical patent/CN111721175B/en
Publication of CN111721175A publication Critical patent/CN111721175A/en
Application granted granted Critical
Publication of CN111721175B publication Critical patent/CN111721175B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D5/00Safety arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D5/00Safety arrangements
    • F42D5/04Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells

Abstract

The invention discloses a mine blasting crushed stone protection device which comprises a protection plate, wherein a fixing plate is fixedly connected to the lower surface of the protection plate, a fixing mechanism for fixing the protection device is arranged on the upper surface of the fixing plate, the fixing mechanism comprises a threaded hole formed in the upper surface of the fixing plate, a rotating lead screw is connected to the inner wall of the threaded hole in a threaded manner, the bottom end of the rotating lead screw penetrates through the upper surface of the fixing plate and extends to the lower surface of the fixing plate, a conical connecting column is fixedly connected to the lower surface of the rotating lead screw, and conical thread teeth are fixedly connected to the surface of the conical connecting column. This mine blasting rubble protector through setting up the toper spliced pole, rotating the lead screw, rotates wheel and toper thread tooth, is convenient for rotate and rotates the wheel, makes to rotate the lead screw and drives toper spliced pole downstream to it is fixed to stretch into the earth's surface, thereby makes this mine blasting rubble protector can use the guard plate to protect, effectual protection blasting constructor's safety.

Description

Mine blasting rubble protector
Technical Field
The invention relates to the technical field of mine blasting protection, in particular to a mine blasting crushed stone protection device.
Background
Blasting is a technology which utilizes the compression, loosening, destruction, throwing and killing effects generated by the explosion of explosives in air, water, earth and stone media or objects to achieve the expected purpose. When the explosive charge or explosive charge explodes in the earth and stone medium or the structure, the phenomena of compression, deformation, damage, loosening and throwing are generated on the earth and stone medium or the structure, so the explosion is widely applied to mine engineering.
At present, blasting is carried out by arranging detonators by professional blasting constructors, but broken stones can be blasted to the surrounding by explosives in the blasting process, and the blasting constructors are far away from a blasting point but still have the danger of being damaged by broken stones, so that certain potential safety hazards exist in blasting operation.
Therefore, the mine blasting crushed stone protection device is provided.
Disclosure of Invention
The invention aims to provide a mine blasting crushed stone protection device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a mine blasting broken stone protection device comprises a protection plate, wherein a fixed plate is fixedly connected to the lower surface of the protection plate, a fixing mechanism for fixing the protection device is arranged on the upper surface of the fixed plate, the fixing mechanism comprises a threaded hole formed in the upper surface of the fixed plate, a rotating lead screw is connected to the inner wall of the threaded hole in a threaded manner, the bottom end of the rotating lead screw penetrates through the upper surface of the fixed plate and extends to the lower surface of the fixed plate, a conical connecting column is fixedly connected to the lower surface of the rotating lead screw, conical thread teeth are fixedly connected to the surface of the conical connecting column, a rotating wheel is fixedly connected to one end, away from the conical connecting column, of the rotating lead screw, a handle is rotatably connected to the upper surface of the rotating wheel, a moving mechanism is fixedly connected to the, the supporting mechanism comprises a rotating seat fixedly connected to the back face of the protection plate, a rotating shaft is fixedly connected to the inner wall of the rotating seat, a fixing pipe is sleeved on the surface of the rotating shaft, an extension column is slidably connected to the inner wall of the fixing pipe, and a conical insertion column is fixedly connected to one end of the extension column.
Preferably, the last fixed surface of guard plate is connected with the push rod, the quantity of push rod is two, and two push rods use the positive central line of guard plate to set up the both ends edge department at the guard plate upper surface as symmetry axis symmetry, two the surface of push rod all is equipped with the lag, the material of lag is rubber, the through-hole has been seted up in the front of guard plate, the inner wall fixedly connected with of through-hole is convenient for observe the toughened glass of the blasting condition, the positive fixedly connected with grid protection frame of guard plate, and the grid protection frame sets up in toughened glass's front, the grid protection frame is formed by many horizontal and fore-and-aft round steel welding.
Preferably, the moving mechanism includes the positive slide rail of fixed connection at the guard plate, the sliding surface of slide rail is connected with the sliding block, the positive fixedly connected with backup pad of sliding block, the through-hole has been seted up to the side of backup pad, the inner wall fixedly connected with bearing of through-hole, the interior anchor ring fixedly connected with axis of rotation of bearing, the equal fixedly connected with gyro wheel in both ends of axis of rotation.
Preferably, the quantity of slide rail, sliding block and backup pad is two, and two slide rails use the positive central line of protection plate to set up in the front of guard plate as symmetry axis symmetry, two the screw thread through-hole has all been seted up to the face in opposite directions of sliding block, and the equal threaded connection of inner wall of two screw thread through-hole has the locking bolt, the one end of two locking bolts respectively with the face in opposite directions overlap joint of two slide rails.
Preferably, the number of the rotary screw rods is two, and the two rotary screw rods are symmetrically arranged on two sides of the upper surface of the fixing plate by taking the center line of the front surface of the fixing plate as a symmetry axis.
Preferably, fixed threaded hole is seted up on the surface of fixed pipe, the inner wall fixedly connected with adjusting bolt of fixed threaded hole, adjusting bolt's one end and the surperficial overlap joint of extension post, the back fixedly connected with fixture block of guard plate, the draw-in groove with fixed pipe looks adaptation is seted up at the back of fixture block, and the inner wall of this draw-in groove and the surface joint of fixed pipe.
Preferably, the storage mechanism comprises a storage box fixedly connected to the back of the protection plate, a partition plate is fixedly connected to the inner wall of the storage box, a cabinet door is rotatably connected to the back of the storage box through a damping hinge, and a handle is fixedly connected to the back of the cabinet door.
Preferably, the back of guard plate is connected with solar cell panel through the hinge rotation, solar cell panel's back fixedly connected with fixed block, the inner wall of fixed block is connected with the connecting rod through the back shaft rotation, a plurality of recess has been seted up at the back of guard plate, and the one end joint of fixed block is kept away from to the inner wall of recess and connecting rod.
Preferably, the last fixed surface of guard plate is connected with the support column, the top fixedly connected with area sound warning light of support column, the last fixed surface of storage tank is connected with the battery box, and the inside of battery box is provided with the battery, area sound warning light and solar cell panel all with the battery coupling.
Advantageous effects
The invention provides a mine blasting crushed stone protection device which has the following beneficial effects:
1. this mine blasting rubble protector, through setting up the toper spliced pole, rotate the lead screw, rotate wheel and toper thread tooth, be convenient for rotate and rotate the wheel, it drives toper spliced pole downstream to make to rotate the lead screw, toper thread tooth downstream is fixed and is stretched into the earth's surface, thereby it can use the guard plate to protect to make this mine blasting rubble protector, effectual protection blasting constructor's safety, rotate the seat through setting up, fixed pipe, stretch post and toper grafting post, be convenient for the pulling stretch post inserts the earth's surface with toper grafting post, thereby can the auxiliary stay guard plate, safety more.
2. This mine blasting rubble protector through setting up push rod, slide rail, sliding block, backup pad and gyro wheel, and this guard plate of being convenient for falls, makes gyro wheel contact ground to can promote the device and remove, through setting up solar cell panel, voiced sound warning light and battery, the solar cell panel of being convenient for can provide the power for voiced sound warning light, thereby can inform the danger of blasting in advance.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a schematic side sectional view of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 3 according to the present invention.
In the figure: the solar energy storage cabinet comprises a protection plate 1, a fixing plate 2, a rotary screw rod 3, a conical connecting column 4, a rotary wheel 5, a fixed tube 6, an extending column 7, a conical inserting column 8, a push rod 9, toughened glass 10, a grille protection frame 11, a sliding rail 12, a sliding block 13, a supporting plate 14, a locking bolt 15, an adjusting bolt 16, a clamping block 17, a storage tank 18, a partition plate 19, a cabinet door 20, a solar cell panel 21, a connecting rod 22 and a sound warning lamp 23.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a mine blasting rubble protector, including guard plate 1, the last fixed surface of guard plate 1 is connected with push rod 9, the quantity of push rod 9 is two, and two push rods 9 use the positive central line of guard plate 1 to set up the both ends edge department at the 1 upper surface of guard plate as symmetry axis symmetry, the surface of two push rods 9 all is equipped with the lag, the material of lag is rubber, the through-hole has been seted up in guard plate 1's front, the toughened glass 10 of the blasting condition is convenient for observe to the inner wall fixedly connected with of through-hole, guard plate 1's positive fixedly connected with grid protection frame 11, and grid protection frame 11 sets up in toughened glass 10's front, grid protection frame 11 is formed by many horizontal and fore-and-aft round steel welding.
The lower fixed surface of guard plate 1 is connected with fixed plate 2, the upper surface of fixed plate 2 is provided with the fixed establishment of fixed this protector, fixed establishment is including seting up the screw hole at fixed plate 2 upper surface, the inner wall threaded connection of screw hole has rotation lead screw 3, the quantity of rotation lead screw 3 is two, and two rotation lead screws 3 all use the positive central line of fixed plate 2 to set up the both sides at fixed plate 2 upper surface as symmetry axis symmetry, the bottom of rotation lead screw 3 runs through the upper surface of fixed plate 2 and extends to the lower surface of fixed plate 2, the lower fixed surface of rotation lead screw 3 is connected with toper spliced pole 4, the fixed surface of toper spliced pole 4 is connected with toper thread tooth, the one end fixedly connected with who keeps away from toper spliced pole 4 of rotation lead screw 3 rotates wheel 5, and the upper surface of rotation wheel 5 is connected with, Rotate lead screw 3, rotate wheel 5 and toper thread tooth, be convenient for rotate and rotate wheel 5, make and rotate lead screw 3 and drive the downstream of toper spliced pole 4, toper thread tooth downstream is fixed and is stretched into the earth's surface to it protects effectual protection blasting constructor's safety to make this mine blasting rubble protector can use guard plate 1.
The positive fixedly connected with moving mechanism of guard plate 1, moving mechanism includes fixed connection at the positive slide rail 12 of guard plate 1, the sliding surface of slide rail 12 is connected with sliding block 13, the positive fixedly connected with backup pad 14 of sliding block 13, the through-hole has been seted up to the side of backup pad 14, the inner wall fixedly connected with bearing of through-hole, the interior anchor ring fixedly connected with axis of rotation of bearing, the equal fixedly connected with gyro wheel in both ends of axis of rotation, slide rail 12, sliding block 13 and backup pad 14's quantity is two, and two slide rails 12 use the positive central line of guard plate 1 as symmetry axis symmetry setting in the front of guard plate 1, the screw through-hole has all been seted up to the facies of two sliding blocks 13, and the equal threaded connection in inner wall of two screw through-holes has locking bolt 15, the one end of two locking bolt 15 overlaps with the, The sliding blocks 13, the supporting plates 14 and the rollers facilitate the falling of the protection plate 1, and the rollers contact the ground, so that the device can be pushed to move.
The back of the protection plate 1 is respectively and fixedly connected with a supporting mechanism and a storage mechanism, the supporting mechanism comprises a rotating seat fixedly connected to the back of the protection plate 1, the inner wall of the rotating seat is fixedly connected with a rotating shaft, the surface of the rotating shaft is sleeved with a fixing pipe 6, the inner wall of the fixing pipe 6 is slidably connected with an extension column 7, the surface of the fixing pipe 6 is provided with a fixing threaded hole, the inner wall of the fixing threaded hole is fixedly connected with an adjusting bolt 16, one end of the adjusting bolt 16 is in lap joint with the surface of the extension column 7, the back of the protection plate 1 is fixedly connected with a clamping block 17, the back of the clamping block 17 is provided with a clamping groove matched with the fixing pipe 6, the inner wall of the clamping groove is clamped with the surface of the fixing pipe 6, one end of the extension column 7 is fixedly connected with a conical insertion column 8, through the rotating seat, the fixing pipe, therefore, the protection plate 1 can be supported in an auxiliary mode, and the safety is improved.
The storage mechanism comprises a storage box 18 fixedly connected to the back of the protection plate 1, a partition plate 19 is fixedly connected to the inner wall of the storage box 18, a cabinet door 20 is rotatably connected to the back of the storage box 18 through a damping hinge, and a handle is fixedly connected to the back of the cabinet door 20.
The back of guard plate 1 is connected with solar cell panel 21 through hinge rotation, solar cell panel 21's back fixedly connected with fixed block, the inner wall of fixed block rotates through the back shaft and is connected with connecting rod 22, a plurality of recess has been seted up at the back of guard plate 1, and the one end joint of fixed block is kept away from to the inner wall of recess and connecting rod 22, the last fixed surface of guard plate 1 is connected with the support column, the top fixedly connected with area sound warning light 23 of support column, the last fixed surface of storage tank 18 is connected with the battery box, and the inside of battery box is provided with the battery, area sound warning light 23 and solar cell panel 21 all with the battery coupling, through setting up solar cell panel 21, take sound warning light 23 and battery, be convenient for solar cell panel 21 can provide the power for taking sound warning light 23, thereby can inform the danger of.
The working principle is as follows: when the mine blasting crushed stone protection device is used, the position of the sliding block 13 is adjusted, the sliding block 13 is fixed by using the locking bolt 15, the device is laid down, the roller is in contact with the ground, the device is pushed to move to a blasting point, the device is erected, the two rotating wheels 5 are rotated, the rotating screw rod 3 drives the conical connecting column 4 to rotate, the conical connecting column 4 is deeply fixed on the ground surface due to the conical thread teeth arranged on the surface of the conical connecting column 4, the extension column 7 is pulled to insert the conical connecting column 8 into the ground surface for fixing, the adjusting bolt 16 is screwed to fix the extension column 7, the protection plate 1 is supported in an auxiliary mode, the audible warning lamp 23 is turned on, people around can know the dangerous existence, meanwhile, blasting personnel can hide in the back of the protection plate 1 and observe the blasting condition through the toughened glass 10, and by using the mine blasting crushed stone protection device, the safety of blasting constructors can be effectively protected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a mine blasting rubble protector, includes guard plate (1), its characterized in that: the protective plate is characterized in that a fixed plate (2) is fixedly connected to the lower surface of the protective plate (1), a fixing mechanism for fixing the protective device is arranged on the upper surface of the fixed plate (2), the fixing mechanism comprises a threaded hole formed in the upper surface of the fixed plate (2), a rotary screw rod (3) is connected to the inner wall of the threaded hole in a threaded manner, the bottom end of the rotary screw rod (3) penetrates through the upper surface of the fixed plate (2) and extends to the lower surface of the fixed plate (2), a conical connecting column (4) is fixedly connected to the lower surface of the rotary screw rod (3), conical thread teeth are fixedly connected to the surface of the conical connecting column (4), a rotary wheel (5) is fixedly connected to one end, away from the conical connecting column (4), of the rotary screw rod (3), a handle is rotatably connected to the upper surface of the rotary wheel (, the back of guard plate (1) is fixedly connected with supporting mechanism and storing mechanism respectively, supporting mechanism includes the rotation seat of fixed connection at the guard plate (1) back, the inner wall fixedly connected with pivot of rotating the seat, the surface cover of pivot is equipped with fixed pipe (6), the inner wall sliding connection of fixed pipe (6) has extension post (7), the one end fixedly connected with toper grafting post (8) of extension post (7).
2. The mine blasting stone breakage protector of claim 1, wherein: the utility model discloses a protection plate, including guard plate (1), upper surface fixedly connected with push rod (9), the quantity of push rod (9) is two, and two push rods (9) prevent that the positive central line of guard plate (1) sets up the both ends edge department at guard plate (1) upper surface for symmetry axis symmetry, two the surface of push rod (9) all is equipped with the lag, the material of lag is rubber, the through-hole has been seted up in the front of guard plate (1), the inner wall fixedly connected with of through-hole is convenient for observe toughened glass (10) of the blasting condition, the positive fixedly connected with grid protection frame (11) of guard plate (1), and grid protection frame (11) set up the front at toughened glass (10), grid protection frame (11) are formed by many horizontal and fore-and aft round steel welding.
3. The mine blasting stone breakage protector of claim 2, wherein: moving mechanism includes positive slide rail (12) of fixed connection at guard plate (1), the surperficial sliding connection of slide rail (12) has sliding block (13), the positive fixedly connected with backup pad (14) of sliding block (13), the through-hole has been seted up to the side of backup pad (14), the inner wall fixedly connected with bearing of through-hole, the interior anchor ring fixedly connected with axis of rotation of bearing, the equal fixedly connected with gyro wheel in both ends of axis of rotation.
4. The mine blasting stone breakage protector of claim 3, wherein: the quantity of slide rail (12), sliding block (13) and backup pad (14) is two, and two slide rails (12) set up in the front of guard plate (1) for symmetry axis symmetry from the positive central line of guard plate (1), two the screw thread through-hole has all been seted up to the face in opposite directions of sliding block (13), and the equal threaded connection of inner wall of two screw thread through-holes has locking bolt (15), the one end of two locking bolt (15) is respectively with the overlap joint of the face in opposite directions of two slide rails (12).
5. The mine blasting stone breakage protector of claim 1, wherein: the number of the rotary screw rods (3) is two, and the two rotary screw rods (3) are symmetrically arranged on two sides of the upper surface of the fixing plate (2) by taking the center line of the front surface of the fixing plate (2) as a symmetry axis.
6. The mine blasting stone breakage protector of claim 1, wherein: fixed threaded hole has been seted up on the surface of fixed pipe (6), fixed threaded hole's inner wall fixedly connected with adjusting bolt (16), the one end of adjusting bolt (16) and the surperficial overlap joint of extension post (7), back fixedly connected with fixture block (17) of guard plate (1), the draw-in groove with fixed pipe (6) looks adaptation is seted up at the back of fixture block (17), and the inner wall of this draw-in groove and the surperficial joint of fixed pipe (6).
7. The mine blasting stone breakage protector of claim 1, wherein: the storage mechanism comprises a storage box (18) fixedly connected to the back of the protection plate (1), a partition plate (19) is fixedly connected to the inner wall of the storage box (18), a cabinet door (20) is rotatably connected to the back of the storage box (18) through a damping hinge, and a handle is fixedly connected to the back of the cabinet door (20).
8. The mine blasting stone breakage protector of claim 1, wherein: the back of guard plate (1) is rotated through the hinge and is connected with solar cell panel (21), the back fixedly connected with fixed block of solar cell panel (21), the inner wall of fixed block is rotated through the back shaft and is connected with connecting rod (22), a plurality of recess has been seted up at the back of guard plate (1), and the one end joint of fixed block is kept away from with connecting rod (22) to the inner wall of recess.
9. The mine blasting stone breakage protector of claim 1, wherein: the utility model discloses a solar battery protection device, including guard plate (1), the last fixed surface of guard plate (1) is connected with the support column, the top fixedly connected with area sound warning light (23) of support column, the last fixed surface of storage tank (18) is connected with the battery box, and the inside of battery box is provided with the battery, take sound warning light (23) and solar cell panel (21) all with the battery coupling.
CN202010579708.2A 2020-06-23 2020-06-23 Mine blasting rubble protector Active CN111721175B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010579708.2A CN111721175B (en) 2020-06-23 2020-06-23 Mine blasting rubble protector

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Application Number Priority Date Filing Date Title
CN202010579708.2A CN111721175B (en) 2020-06-23 2020-06-23 Mine blasting rubble protector

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CN111721175A true CN111721175A (en) 2020-09-29
CN111721175B CN111721175B (en) 2022-04-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117427706A (en) * 2023-10-26 2024-01-23 连云港长兴建设工程有限公司 Stone crusher for building earthwork

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KR20040023283A (en) * 2002-09-11 2004-03-18 강대우 Apparatus for preventing air blast, sound, fly rock and rock dust in the rock
JP2016183851A (en) * 2015-03-26 2016-10-20 株式会社ケィズ・アロー Moving type protection shield and simple protection array formed joining plurality thereof together
CN206488708U (en) * 2016-12-26 2017-09-12 重庆大学 A kind of directional blasting protector
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
CN108534620A (en) * 2018-06-14 2018-09-14 贵州大学 A kind of mine blasting protective fence convenient for splicing
CN109579646A (en) * 2018-12-05 2019-04-05 贵州大学 A kind of blasting protection device with depositing dust function
CN109654967A (en) * 2019-01-28 2019-04-19 贵州大学 A kind of explosion being easily installed flyrock protection device
CN209147847U (en) * 2018-12-11 2019-07-23 中铁十九局集团矿业投资有限公司 A kind of protective device suitable for mine blasting
CN209726966U (en) * 2018-07-11 2019-12-03 安徽理工大学 A kind of Blasting of shear wall protective device
CN209820303U (en) * 2019-03-16 2019-12-20 艾春玲 Non-explosive grenade rapid processing device without handle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040023283A (en) * 2002-09-11 2004-03-18 강대우 Apparatus for preventing air blast, sound, fly rock and rock dust in the rock
JP2016183851A (en) * 2015-03-26 2016-10-20 株式会社ケィズ・アロー Moving type protection shield and simple protection array formed joining plurality thereof together
CN206488708U (en) * 2016-12-26 2017-09-12 重庆大学 A kind of directional blasting protector
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
CN108534620A (en) * 2018-06-14 2018-09-14 贵州大学 A kind of mine blasting protective fence convenient for splicing
CN209726966U (en) * 2018-07-11 2019-12-03 安徽理工大学 A kind of Blasting of shear wall protective device
CN109579646A (en) * 2018-12-05 2019-04-05 贵州大学 A kind of blasting protection device with depositing dust function
CN209147847U (en) * 2018-12-11 2019-07-23 中铁十九局集团矿业投资有限公司 A kind of protective device suitable for mine blasting
CN109654967A (en) * 2019-01-28 2019-04-19 贵州大学 A kind of explosion being easily installed flyrock protection device
CN209820303U (en) * 2019-03-16 2019-12-20 艾春玲 Non-explosive grenade rapid processing device without handle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117427706A (en) * 2023-10-26 2024-01-23 连云港长兴建设工程有限公司 Stone crusher for building earthwork

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