CN107514946A - A kind of explosion isolation protecting device of convenient use - Google Patents
A kind of explosion isolation protecting device of convenient use Download PDFInfo
- Publication number
- CN107514946A CN107514946A CN201710956358.5A CN201710956358A CN107514946A CN 107514946 A CN107514946 A CN 107514946A CN 201710956358 A CN201710956358 A CN 201710956358A CN 107514946 A CN107514946 A CN 107514946A
- Authority
- CN
- China
- Prior art keywords
- support bar
- plate
- fixed plate
- convenient use
- protecting device
- 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.)
- Pending
Links
- 238000004880 explosion Methods 0.000 title claims abstract description 19
- 238000002955 isolation Methods 0.000 title claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 230000001012 protector Effects 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005422 blasting Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
- F42D5/045—Detonation-wave absorbing or damping means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The invention discloses a kind of explosion isolation protecting device of convenient use, including protector main body, fixed plate, projection, first support bar and protection network, protective plate is provided with the left of the protector main body, and protective plate is connected by elastic layer with bottom plate, the fixed plate is arranged on the right side of bottom plate by buffer spring, and the upper and lower ends of fixed plate are connected with baffle plate, the projection is arranged on the right side of baffle plate, the first support bar is connected by turning joint with the upper end of fixed plate, and the lower end of first support bar is connected by turning joint with second support bar, the left end of the second support bar is interspersed in the inside of fixes sleeve, and fixes sleeve is located at the lower section on the right side of fixed plate, the protection network is arranged on the inner side of first support bar, and the lower section of protection network is connected with connecting rod.The explosion isolation protecting device of the convenient use, can be protected to popper, and easy for installation, can be repeatedly used.
Description
Technical field
The present invention relates to blasting technique field, the explosion isolation protecting device of specially a kind of convenient use.
Background technology
At present, hard rock and part soft rock excavation construction are mainly based on Blasting Excavation in state's inner tunnel, in building
Compact district or the blast working for having strict safety required distance, must be requested that have good safety prevention measure, according to investigations, tunnel
Blast working, because slungshot is limited by tunnel perimeter preliminary bracing, slungshot running orbit flies in a direction, so only
The security protection of slungshot traffic direction is carried out, then can reach the purpose of security protection, it is main during blast working at this stage
There are two methods：(1) for there is place to meet safe distance requirement, main use is pacified outside shotfiring safety warning line
Full warning, the scheme guarded against using not zone of protection, security area is larger, and evacuating personnel region is big, will increase man power and material；
(2) it is main that blast working, protection are carried out using local protection or overall protected measure for not possessing safe distance condition
Facility mainly using back-pressure sandbag and coordinates the method for protection network to carry out security protection, the scheme protected using sandbag, and pile is difficult
Degree is big, and pile input manpower is more, and pack quantity is big every time, and can not reuse.
Therefore, if the portable device that Tunnel Blasting protection use can be reused, will greatly improve construction efficiency.
The content of the invention
It is an object of the invention to provide a kind of explosion isolation protecting device of convenient use, to solve above-mentioned background technology
The problem of existing explosion isolation protecting device of middle proposition, protection effect is poor, and the person of being not convenient to use reuses.
To achieve the above object, the present invention provides following technical scheme：A kind of explosion isolation protecting device of convenient use,
Including protector main body, fixed plate, projection, first support bar and protection network, it is provided with the left of the protector main body
Protective plate, and protective plate is connected by elastic layer with bottom plate, the fixed plate is arranged on the right side of bottom plate by buffer spring,
And the upper and lower ends of fixed plate are connected with baffle plate, the projection is arranged on the right side of baffle plate, and card is provided with below projection
Button, the first support bar is connected by turning joint with the upper end of fixed plate, and the lower end of first support bar passes through rotation
Hinge is connected with second support bar, and the left end of the second support bar is interspersed in the inside of fixes sleeve, and fixes sleeve position
Lower section on the right side of fixed plate, the protection network are arranged on the inner side of first support bar, and the lower section of protection network and connecting rod phase
Connection.
Preferably, the protective plate includes salient point, and salient point is evenly distributed on the outer surface of protective plate.
Preferably, the equal length of the protective plate, elastic layer and bottom plate, and the length of protective plate, elastic layer and bottom plate
The respectively less than length of fixed plate.
Preferably, the baffle plate is provided with two altogether, and baffle plate is axisymmetricly installed on fixed plate, the length of baffle plate
The distance between fixed plate is arrived equal to protective plate.
Preferably, the structure of the first support bar and second support bar is rotational structure, and second support bar is straight
Footpath is less than the diameter of bore of fixes sleeve.
Preferably, the fixes sleeve includes fixing hole, and fixed hole position is in the both sides of fixes sleeve.
Preferably, the width of the protection network is equal to the distance between 2 first support bars, and the setting angle of protection network
It is identical with the setting angle of first support bar.
Compared with prior art, the beneficial effects of the invention are as follows：The explosion isolation protecting device of the convenient use, can be right
Popper is protected, and easy for installation, can be repeatedly used, and protective plate is provided with protector main body, plays resistance
The effect of blasting flyrock is kept off, avoids personal safety of the blasting flyrock to popper from damaging, is advantageous to the protection to popper,
And salient point is evenly distributed with protective plate, play a part of slowing down protective plate and blasting flyrock gouging abrasion, be advantageous to improve and prevent
The service life of backplate, elasticity layer is set between protective plate and bottom plate, plays and slows down blasting flyrock to protector main body
The effect of collision dynamics, is advantageous to the stable placement of protector main body, and buffer spring is provided between fixed plate and bottom plate,
Play a part of further slowing down blasting flyrock to protector main body collision dynamics, the upper and lower ends of fixed plate are provided with gear
Plate, play a part of preventing blasting flyrock from entering between fixed plate and bottom plate, be advantageous to the use of buffer spring, and in fixation
The upper end of plate is provided with projection, plays a part of protecting turning joint above first support bar, avoids blasting flyrock to rotating hinge
Chain causes to damage, and the back side of fixed plate is provided with buckle, plays a part of fixed first support bar and second support bar, favorably
In the stable installation of first support bar and second support bar, protection network is provided with the inside of first support bar, it is anti-to play protection
The effect of popper below protecting wire net, the personal safety for avoiding blasting flyrock from being fallen from top to popper are damaged, are advantageous to
Further popper is protected, the lower section on the right side of fixed plate is provided with fixes sleeve, plays fixed second support bar
Effect, be advantageous to the stable installation of second support bar, first support bar and second support bar be provided with protector main body,
And fixed plate, first support bar and the triangle shape of second support bar, play a part of fixed support protecting apptss main body, have
Beneficial to the stability for improving protector main body, preferably popper is protected.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is overlooking the structure diagram of the present invention；
Fig. 3 is a portions of the present invention cross-sectional view；
Fig. 4 is protection plate structure schematic diagram of the present invention.
In figure：1st, protector main body, 2, protective plate, 201, salient point, 3, elastic layer, 4, fixed plate, 5, buckle, 6, gear
Plate, 7, projection, 8, turning joint, 9, first support bar, 10, buffer spring, 11, fixes sleeve, 1101, fixing hole, 12, second
Support bar, 13, protection network, 14, bottom plate, 15, connecting rod.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-4 are referred to, the present invention provides a kind of technical scheme：A kind of explosion isolation protecting device of convenient use, bag
Include protector main body 1, protective plate 2, salient point 201, elastic layer 3, fixed plate 4, buckle 5, baffle plate 6, projection 7, turning joint 8,
First support bar 9, buffer spring 10, fixes sleeve 11, fixing hole 1101, second support bar 12, protection network 13, bottom plate 14 and company
Extension bar 15, the left side of protector main body 1 is provided with protective plate 2, and protective plate 2 is connected by elastic layer 3 with bottom plate 14, prevents
Backplate 2 includes salient point 201, and salient point 201 is evenly distributed on the outer surface of protective plate 2, sets salient point 201 to play and slows down protective plate
2 with the effect of blasting flyrock gouging abrasion, be advantageous to improve the service life of protective plate 2, protective plate 2, elastic layer 3 and bottom plate 14
Equal length, and the length of protective plate 2, elastic layer 3 and bottom plate 14 is respectively less than the length of fixed plate 4, sets protective plate 2 to play
Stop the effect of blasting flyrock, avoid personal safety of the blasting flyrock to popper from damaging, be advantageous to the guarantor to popper
Shield, fixed plate 4 is arranged on the right side of bottom plate 14 by buffer spring 10, and the upper and lower ends of fixed plate 4 are connected with baffle plate 6,
Baffle plate 6 is provided with two altogether, and baffle plate 6 is axisymmetricly installed on fixed plate 4, and the length of baffle plate 6 is equal to protective plate 2 to admittedly
The distance between fixed board 4, baffle plate 6 is set to play a part of preventing blasting flyrock from entering between fixed plate 4 and bottom plate 14, favorably
In the use of buffer spring 10, projection 7 is arranged on the right side of baffle plate 6, and the lower section of projection 7 is provided with buckle 5, first support bar
9 are connected by turning joint 8 with the upper end of fixed plate 4, and the lower end of first support bar 9 passes through turning joint 8 and second
Strut 12 is connected, and the structure of first support bar 9 and second support bar 12 is rotational structure, and the diameter of second support bar 12
Less than the diameter of bore of fixes sleeve 11, first support bar 9 and second support bar 12, and fixed plate 4, first support bar 9 are set
With 12 triangle shape of second support bar, play a part of fixed support protecting apptss main body 1, be advantageous to improve protector
The stability of main body 1, is preferably protected to popper, and the left end of second support bar 12 is interspersed in the interior of fixes sleeve 11
Portion, and fixes sleeve 11 is located at the lower section on the right side of fixed plate 4, fixes sleeve 11 includes fixing hole 1101, and fixing hole 1101
In the both sides of fixes sleeve 11, set fixes sleeve 11 to play a part of fixed second support bar 12, be advantageous to second support bar
12 stable installation, protection network 13 is arranged on the inner side of first support bar 9, and the lower section of protection network 13 is connected with connecting rod 15
Connect, the width of protection network 13 is equal to the distance between 2 first support bars 9, and the setting angle of protection network 13 and the first support
The setting angle of bar 9 is identical, set protection network 13 play a part of protect the lower section popper of protection network 13, avoid blasting flyrock from
The personal safety that top falls to popper damages, and is advantageous to further protect popper.
Operation principle：When using the explosion isolation protecting device of the convenient use, each of protector main body 1 is first checked
Whether structure is intact, after inspection, the one end of protector main body 1 with fixes sleeve 11 is contacted with ground, makes protection
Plate 2 is and outside by the turning joint 8 of the lower section of projection 7 by first support bar 9 and second support bar 12 towards the side of blow-up point
Layback moves, and first support bar 9 and second support bar 12 is separated with buckle 5, and the protection network 13 between first support bar 9 is also therewith
Open, then the left end of second support bar 12 is inserted into the inside of fixes sleeve 11, and fixing bolt is passed through fixing hole 1101
Second support bar 12 is fixed on to the inside of fixes sleeve 11, now, staff can stand in the lower section of protection network 13, protective plate
2 can stop blasting flyrock, and salient point 201 can mitigate the collision of blasting flyrock and protective plate 2, and elastic layer 3 can mitigate blasting flyrock pair
The collision dynamics of protector main body 1, the buffer spring 10 of the rear side of fixed plate 4 can further mitigate blasting flyrock to protector
The collision dynamics of main body 1, baffle plate 6 can prevent blasting flyrock from entering between fixed plate 4 and bottom plate 14, and connecting rod 15 can stablize branch
First support bar 9 is supportted, the above just completes the sequence of operations of the explosion isolation protecting device of the convenient use, in this specification not
The content being described in detail belongs to prior art known to professional and technical personnel in the field.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of explosion isolation protecting device of convenient use, including protector main body (1), fixed plate (4), projection (7),
One support bar (9) and protection network (13), it is characterised in that：Protective plate (2) is provided with the left of the protector main body (1),
And protective plate (2) is connected by elastic layer (3) with bottom plate (14), the fixed plate (4) is arranged on by buffer spring (10)
The right side of bottom plate (14), and the upper and lower ends of fixed plate (4) are connected with baffle plate (6), the projection (7) is arranged on baffle plate (6)
Right side, and buckle (5) is provided with below projection (7), the first support bar (9) passes through turning joint (8) and fixed plate
(4) upper end is connected, and the lower end of first support bar (9) is connected by turning joint (8) with second support bar (12), institute
The left end for stating second support bar (12) is interspersed in the inside of fixes sleeve (11), and fixes sleeve (11) is located at fixed plate (4) right side
The lower section of side, the protection network (13) are arranged on the inner side of first support bar (9), and the lower section of protection network (13) and connecting rod
(15) it is connected.
A kind of 2. explosion isolation protecting device of convenient use according to claim 1, it is characterised in that：The protective plate
(2) salient point (201) is included, and salient point (201) is evenly distributed on the outer surface of protective plate (2).
A kind of 3. explosion isolation protecting device of convenient use according to claim 1, it is characterised in that：The protective plate
(2), the equal length of elastic layer (3) and bottom plate (14), and the length of protective plate (2), elastic layer (3) and bottom plate (14) is respectively less than
The length of fixed plate (4).
A kind of 4. explosion isolation protecting device of convenient use according to claim 1, it is characterised in that：The baffle plate
(6) two are provided with altogether, and baffle plate (6) is axisymmetricly installed on fixed plate (4), the length of baffle plate (6) is equal to protective plate
(2) the distance between fixed plate (4) is arrived.
A kind of 5. explosion isolation protecting device of convenient use according to claim 1, it is characterised in that：Described first
The structure of strut (9) and second support bar (12) is rotational structure, and the diameter of second support bar (12) is less than fixes sleeve
(11) diameter of bore.
A kind of 6. explosion isolation protecting device of convenient use according to claim 1, it is characterised in that：The fixed cover
Cylinder (11) includes fixing hole (1101), and fixing hole (1101) is located at the both sides of fixes sleeve (11).
A kind of 7. explosion isolation protecting device of convenient use according to claim 1, it is characterised in that：The protection network
(13) width is equal to the distance between 2 first support bars (9), and the setting angle and first support bar of protection network (13)
(9) setting angle is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956358.5A CN107514946A (en) | 2017-10-12 | 2017-10-12 | A kind of explosion isolation protecting device of convenient use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956358.5A CN107514946A (en) | 2017-10-12 | 2017-10-12 | A kind of explosion isolation protecting device of convenient use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107514946A true CN107514946A (en) | 2017-12-26 |
Family
ID=60727229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710956358.5A Pending CN107514946A (en) | 2017-10-12 | 2017-10-12 | A kind of explosion isolation protecting device of convenient use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107514946A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301832A (en) * | 2018-01-31 | 2018-07-20 | 大连海事大学 | It is a kind of to protect the quiet quick-fried device of the liquid carbon dioxide of splashing and quiet quick-fried construction method |
| CN108548462A (en) * | 2018-06-19 | 2018-09-18 | 贵州大学 | A kind of engineering explosion explosive fixing device |
| CN109098528A (en) * | 2018-09-16 | 2018-12-28 | 六盘水久翔爆破工程有限责任公司 | A kind of surface blasting safety protective fence |
| CN109405694A (en) * | 2018-12-06 | 2019-03-01 | 贵州大学 | A kind of protective device that the explosion with dust-absorbing function is moved back with protecting against shock |
| CN109900179A (en) * | 2019-03-01 | 2019-06-18 | 湖北乾奥建设工程有限公司 | A kind of municipal administration transformation aging blocks blasting protection equipment and application method |
| CN110057260A (en) * | 2019-05-28 | 2019-07-26 | 湘潭大学 | A kind of pipe gallery construction blasting isolating device |
| CN110645862A (en) * | 2018-06-27 | 2020-01-03 | 贵州大学 | Comprehensive protection device for engineering blasting |
| CN111811352A (en) * | 2020-07-16 | 2020-10-23 | 浙江安盛爆破工程有限公司 | Mine blasting protector |
| CN113047898A (en) * | 2021-02-26 | 2021-06-29 | 成都建工路桥建设有限公司 | Tunnel blasting protection device and using method thereof |
| CN114034221A (en) * | 2021-11-16 | 2022-02-11 | 华能国际电力江苏能源开发有限公司南京电厂 | Prevent serious end cover of deformation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013256845A (en) * | 2012-06-14 | 2013-12-26 | Tokyo Seiko Co Ltd | Protective device against falling object, and method for reinforcing the same |
| CN205426002U (en) * | 2016-03-07 | 2016-08-03 | 慈溪宝诚知识产权服务有限公司 | Explosive blasting protector |
| CN205618909U (en) * | 2016-04-18 | 2016-10-05 | 大丰市天曌机械科技有限公司 | Projecting apparatus is strutting arrangement for curtain |
| CN206073829U (en) * | 2016-09-09 | 2017-04-05 | 安徽理工大学 | A kind of blasting flyrock preventer |
| CN106595412A (en) * | 2017-01-19 | 2017-04-26 | 贵州新联爆破工程集团有限公司 | Far-field protective structure dismantling flying stones |
| CN106839913A (en) * | 2017-02-14 | 2017-06-13 | 贵州大学 | A kind of Blasting of shear wall protector |
| CN207335556U (en) * | 2017-10-12 | 2018-05-08 | 贵州大学 | A kind of explosion isolation protecting device easy to use |
-
2017
- 2017-10-12 CN CN201710956358.5A patent/CN107514946A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013256845A (en) * | 2012-06-14 | 2013-12-26 | Tokyo Seiko Co Ltd | Protective device against falling object, and method for reinforcing the same |
| CN205426002U (en) * | 2016-03-07 | 2016-08-03 | 慈溪宝诚知识产权服务有限公司 | Explosive blasting protector |
| CN205618909U (en) * | 2016-04-18 | 2016-10-05 | 大丰市天曌机械科技有限公司 | Projecting apparatus is strutting arrangement for curtain |
| CN206073829U (en) * | 2016-09-09 | 2017-04-05 | 安徽理工大学 | A kind of blasting flyrock preventer |
| CN106595412A (en) * | 2017-01-19 | 2017-04-26 | 贵州新联爆破工程集团有限公司 | Far-field protective structure dismantling flying stones |
| CN106839913A (en) * | 2017-02-14 | 2017-06-13 | 贵州大学 | A kind of Blasting of shear wall protector |
| CN207335556U (en) * | 2017-10-12 | 2018-05-08 | 贵州大学 | A kind of explosion isolation protecting device easy to use |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301832A (en) * | 2018-01-31 | 2018-07-20 | 大连海事大学 | It is a kind of to protect the quiet quick-fried device of the liquid carbon dioxide of splashing and quiet quick-fried construction method |
| CN108301832B (en) * | 2018-01-31 | 2024-05-03 | 大连海事大学 | Liquid carbon dioxide static explosion device capable of preventing splashing and static explosion construction method |
| CN108548462A (en) * | 2018-06-19 | 2018-09-18 | 贵州大学 | A kind of engineering explosion explosive fixing device |
| CN110645862A (en) * | 2018-06-27 | 2020-01-03 | 贵州大学 | Comprehensive protection device for engineering blasting |
| CN109098528A (en) * | 2018-09-16 | 2018-12-28 | 六盘水久翔爆破工程有限责任公司 | A kind of surface blasting safety protective fence |
| CN109405694A (en) * | 2018-12-06 | 2019-03-01 | 贵州大学 | A kind of protective device that the explosion with dust-absorbing function is moved back with protecting against shock |
| CN109900179A (en) * | 2019-03-01 | 2019-06-18 | 湖北乾奥建设工程有限公司 | A kind of municipal administration transformation aging blocks blasting protection equipment and application method |
| CN110057260A (en) * | 2019-05-28 | 2019-07-26 | 湘潭大学 | A kind of pipe gallery construction blasting isolating device |
| CN111811352A (en) * | 2020-07-16 | 2020-10-23 | 浙江安盛爆破工程有限公司 | Mine blasting protector |
| CN111811352B (en) * | 2020-07-16 | 2022-05-10 | 浙江安盛爆破工程有限公司 | Mine blasting protector |
| CN113047898A (en) * | 2021-02-26 | 2021-06-29 | 成都建工路桥建设有限公司 | Tunnel blasting protection device and using method thereof |
| CN114034221A (en) * | 2021-11-16 | 2022-02-11 | 华能国际电力江苏能源开发有限公司南京电厂 | Prevent serious end cover of deformation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107514946A (en) | A kind of explosion isolation protecting device of convenient use | |
| CN207335556U (en) | A kind of explosion isolation protecting device easy to use | |
| CN204007366U (en) | A kind of flexibility is adjustable blasting flyrock protection network | |
| CN105019942A (en) | Method for dismounting second-lined reinforced concrete in tunnel | |
| CN206000552U (en) | Tunnel falling rocks flexible protection systems | |
| CN108534620A (en) | A kind of mine blasting protective fence convenient for splicing | |
| CN208379466U (en) | Flexible hangar tunnel | |
| CN108444353A (en) | Tunnel excavation Blasting shock wave protective device and operating method | |
| CN106839913B (en) | A kind of Blasting of shear wall protective device | |
| CN207197380U (en) | The safety device of multiple anti-slungshot in a kind of subway foundation pit | |
| CN207456312U (en) | A kind of rock mass engineering project explosion safety device | |
| CN208272592U (en) | A kind of fixed device of submarine cable installation | |
| CN208396333U (en) | A kind of pin-connected panel floor edge hole safety protection facility | |
| CN207218125U (en) | A kind of high-voltage line ground wire lowering or hoisting gear | |
| CN206556525U (en) | A kind of Blasting of shear wall protector | |
| CN103900431B (en) | The anti-slungshot device of foundation ditch explosion depositing dust and means of defence thereof | |
| CN208933843U (en) | A kind of soft protecting net system suitable for large impact amount | |
| CN215672186U (en) | Coal mining machine safety device for coal mine | |
| CN108797353A (en) | A kind of bridge construction protective device | |
| CN106368710A (en) | Pavement protection method for super shallow-buried tunnel penetrating through existing road underneath | |
| CN111829407B (en) | Underworkings blasting shield assembly | |
| CN210262793U (en) | Safety device for municipal building construction | |
| CN208308171U (en) | Construction elevator cable protector | |
| CN206930230U (en) | A kind of netted blasting protection device of rope class | |
| CN206514739U (en) | Standard combination modular structure is used in a kind of blast working covering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171226 |