CN203561297U - Blasting retaining device - Google Patents
Blasting retaining device Download PDFInfo
- Publication number
- CN203561297U CN203561297U CN201320704442.5U CN201320704442U CN203561297U CN 203561297 U CN203561297 U CN 203561297U CN 201320704442 U CN201320704442 U CN 201320704442U CN 203561297 U CN203561297 U CN 203561297U
- Authority
- CN
- China
- Prior art keywords
- push rod
- explosion
- support bar
- backstopping device
- pressing spring
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model discloses a blasting retaining device which comprises an emission end body, an ejector rod and supporting rods, wherein the emission end body radially comprises an ejector rod hole communicated with an emission hole, the ejector rod is arranged in the ejector rod hole, and the ejector rod extends out from the ejector rod hole when the emission hole performs emission; and swinging ends are pushed to swing to the outer side of the emission end body around rotation ends. Therefore, the problem that a carbon dioxide exploiting device flies out of a coal drilling hole during a blasting process is solved, and safety and reliability of carbon dioxide exploitation are improved.
Description
Technical field
The utility model relates to ore exploration and exploitation field, particularly explosion backstopping device.
Background technology
Colliery, in exploitation, generally adopts the recovery method of underground blasting.Due to, traditional explosive produces a large amount of high temperature and flame in blasting process, therefore, to coal mining, has brought potential safety hazard, while especially carrying out detonation in high gas and projecting mine, coal dust very likely with gas explosion.In recent years, in order to improve the security of coal mining, carbon dioxide exploitation is arisen at the historic moment.Carbon dioxide exploitation is take carbon dioxide as explosive source, and carbon dioxide exploitation device is the gas-field exploitation mode that main enforcement device carries out.Wherein, carbon dioxide exploitation device comprise high strength fill liquid carbon dioxide metal tube, heater, level pressure let out can device etc. part.Carrying out in recovery process, the one end of carbon dioxide being exploited to device is positioned in coal body boring, by exploder, activate heater, heat inner liquid carbon dioxide and become gas, make 600 times of volume expansions, pressure reach the carbon dioxide abrupt release of hundred MPas, thereby reach the requirement of coal blasting.But in the instantaneous explosion process of carbon dioxide, stretch into the carbon dioxide exploitation device in coal body boring, can, under the effect of instantaneous explosion power, in holing, fly out at a terrific speed, significantly increase explosion danger, thereby affected and hindered the application of carbon dioxide exploitation.
Utility model content
For defect of the prior art, the utility model provides explosion backstopping device, by steady arm, the moment in blasting process outwards swings its explosion backstopping device, form fixed support with coal body drill hole inner wall, thereby make the carbon dioxide exploitation device being attached thereto, in instant of detonation, can be fixed in coal body boring.Thereby solved in above-mentioned prior art the problem that carbon dioxide exploitation device flies out in blasting process from coal body boring.
In the utility model one embodiment, provide explosion backstopping device, wherein, having comprised: discharge end body, push rod and support bar; Described discharge end body radially comprises the jogger hole communicating with discharge orifice, and described push rod is arranged in described jogger hole, and when described discharge orifice discharge, described push rod stretches out from described jogger hole; The swinging end of described support bar is arranged at stretching out on track of described push rod, the rotation end of described support bar is flexibly connected with described discharge end body, when described push rod stretches out from described jogger hole, promote described swinging end around described rotation end, to the outer side oscillation of described discharge end body.
In some embodiments, also comprise: pressing spring, described pressing spring is arranged at the swing side of described support bar, is fixedly connected with described discharge end body, makes described support bar be pressed in described push rod.
In some embodiments, the rotation end of described support bar is that revolute pair is connected with described discharge end body.
In some embodiments, described jogger hole is bellmouth, and the profile of described push rod and described bellmouth is corresponding.
In some embodiments, also comprise: sheath, described sheath be fixed on described swinging end supporting surface or, be wrapped in described swinging end outside.
In some embodiments, the external part of described push rod is top cap, and described top cap external diameter is greater than described jogger hole aperture.
In some embodiments, the steady pin of described pressing spring is arranged at the rotation end of described support bar, making the angle that radially wobbles of described swinging end is predetermined angle or maximum predetermined angle, described maximum predetermined angle is, when the extension elongation of described push rod is push rod length described in the pendulum angle of swinging end.
In some embodiments, also comprise: power-assisted pressing spring, described power-assisted pressing spring is arranged at the inner side of the swinging end of described support bar, is fixedly connected with described discharge end body, and the thrust of described power-assisted pressing spring is less than the thrust of described pressing spring.
In some embodiments, the low side of described push rod comprises: inner cavity.
In some embodiments, also comprise: the circle of holding one's breath, the bottom of described push rod comprises: the ring recess of holding one's breath, described in hold one's breath ring recess with described in the circle of holding one's breath corresponding, described in the circle ring recess inside of holding one's breath described in being assemblied in of holding one's breath.
Compared with prior art, according to the utlity model has following advantage: the explosion backstopping device in the utility model passed through in carbon dioxide explosion moment, the support bar that can open laterally, is fixed in exploitation hole carbon dioxide exploitation device moment.Therefore efficiently solve, carbon dioxide exploitation device is implementing in carbon blasting process, the problem flying out in adopting hole.Thereby security and the reliability of carbon dioxide exploitation have been improved.
Accompanying drawing explanation
Structural representation when Fig. 1 is original state in one embodiment of explosion backstopping device of the present utility model;
Structural representation when Fig. 2 is duty in one embodiment of explosion backstopping device of the present utility model;
Fig. 3 is the structural representation during with the original state of pressing spring in a kind of embodiment of explosion backstopping device of the present utility model;
Fig. 3 a is the perspective internal view of Fig. 3 borehole blasting backstopping device;
Fig. 4 is the structural representation during with the duty of pressing spring in a kind of embodiment of explosion backstopping device of the present utility model;
Fig. 4 a is the perspective internal view of high strength explosion backstopping device in Fig. 4;
Fig. 5 be explosion backstopping device of the present utility model in one embodiment partly cut open structural representation;
Fig. 6 is the working state structure schematic diagram with bilateral pressing spring in a kind of embodiment of explosion backstopping device of the present utility model;
Fig. 7 is the partial structurtes schematic diagram of push rod in a kind of embodiment of explosion backstopping device of the present utility model;
Fig. 8 is the partial structurtes schematic diagram of push rod in the another kind of embodiment of explosion backstopping device of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, shown in Fig. 1～Fig. 8, utility model is described in further detail.
Structural representation when Fig. 1 is original state in one embodiment of explosion backstopping device of the present utility model.The link 11 of discharge end body 10 is provided with and can exploits external screw thread or the internal thread (internal thread type is not shown) that device is connected with carbon dioxide.At link 11, offer discharge orifice 12.After discharge end body 10 is connected with carbon dioxide exploitation device, this discharge orifice 12 is communicated with the discharge chamber in carbon dioxide exploitation device.Discharge orifice 12 is also communicated with venting of dust explosion hole 13 and jogger hole 14 simultaneously, and wherein, jogger hole 14 is along the radially setting of discharge end body 10.In jogger hole 14, assembling push rod 20, the aperture of the external diameter of push rod 20 and jogger hole 14 is corresponding, thereby can guarantee that push rod 20 stays in jogger hole 14 when discharge orifice 12 does not produce discharge, and when discharge orifice 12 produces discharge, push rod 20 stretches out from jogger hole 14.For making push rod 20 be difficult for landing in jogger hole 14, the external part of push rod 20 can also be top cap 22, and the external diameter of top cap 22 is greater than the aperture of jogger hole 14.Stretching out on track 21 of push rod 20, support bar 30(is set and is illustrated as supported on both sides bar) swinging end 32, the rotation end 31 of support bar 30 is by revolute pair connected modes such as connecting bolts 40, be fixed on discharge end body 10, therefore,, when discharge orifice 12 discharges, swinging end 32 can be under the outside promotion of push rod 20, outside around from connecting bolt 40 to discharge end body 10, swings along the direction of motion of stretching out track 21.
The course of work of the utility model explosion backstopping device is: the collection terminal that explosion backstopping device is connected in to carbon dioxide exploitation device, afterwards the one end that is connected with explosion backstopping device is stretched into in blast hole, (explosion backstopping device is when original state, integral installation external diameter is less than blast hole internal diameter), internal structure is as shown in Figure 1.After the carbon dioxide in carbon dioxide exploitation device is detonated, " the carbon dioxide explosion gas " entering in discharge orifice 12, when passing through venting of dust explosion hole 13 ventings of dust explosion, enter jogger hole 14, promote push rod 20 from initial position, along stretching out the outside fast moving of track 21, the upper end of push rod 20 drives the swinging end 32 of support bar 30, around rotating end 31, outwards swings.Therefore, make swinging end 32 and blast hole inwall form effective support, make carbon dioxide exploitation device in the moment of blast, be fixed in blast hole, internal structure as shown in Figure 2.Thereby effectively avoided in blast process the phenomenon that carbon dioxide exploitation device flies out from explosive hole.
In a kind of embodiment of explosion backstopping device as of the present utility model in Fig. 3～3a with as shown in the original state structural representation of pressing spring.For ease of support bar 30, after blast completes, can make carbon dioxide exploitation device from explosive hole, take out smoothly, even if swinging end 32 returns to initial position.Therefore, in a kind of embodiment of the present utility model, in the swing side 32 of support bar 30, be also fixed with pressing spring 50(and be illustrated as bilateral pressing spring), specifically can, by this pressing spring 50 by screw or bolt, be fixed on discharge end body 10.Pressing spring 50, when initial position, by pressing force of the spring, is pressed in the swing side 32 of support bar 30 on push rod 20.When push rod 20 is initial position, be pressed on jogger hole 14.When swinging side 32 under the promotion of push rod 20, while swinging laterally, pressing spring 50 produces compression, and state is as shown in Fig. 4～4a.After explosion completes, swing side 32 under " spring force " effect of pressing spring 50, from external shown in Fig. 4, return to the initial position shown in Fig. 3.Therefore swing side 32 and disengage with blast hole inwall, thereby carbon dioxide exploitation device can be taken out smoothly from explosive hole.
As shown in Figure 5.For the support reaction time that makes explosion backstopping device shortens, what push rod 20 can be sensitive departs from from jogger hole 14.Therefore, in a kind of embodiment of the present utility model, jogger hole 14 also can be bellmouth, and push rod 20 is corresponding with the profile of bellmouth.Thereby, once depart from push rod 20 bottoms and jogger hole 14, will there is more explosion gas to promote push rod 20 and move up, therefore, shortened the support reaction time of explosion backstopping device, make sensitivity higher.
As shown in Figure 4.For making explosion backstopping device can adapt to more coarse explosive hole surface, be not easy to landing from explosive hole.Therefore in a kind of embodiment of the present utility model, on the supporting surface contacting with explosive hole in swing side 32, go back fixed sheath 60.This sheath 60 also can be wrapped in the outside (not shown) of swinging end 32, and its sheath 60 can be selected damping material.Thereby be more conducive to, the utility model is implemented to use in various explosive holes.
As shown in Fig. 4～5,4a.For the utility model explosion backstopping device is implemented in larger explosive hole, its support bar 30 can be because pendulum angle is excessive, thereby cause push rod 20 to depart from from jogger hole 14.Therefore,, in a kind of embodiment of the present utility model, by the steady pin 51 of pressing spring 50, the pendulum angle of support bar 30 is limited.Make the steady pin 51 of pressing spring 50 be arranged at the rotation end 31 of support bar 30, the axial wobble angle that makes swinging end 32 is predetermined angle or maximum predetermined angle, maximum predetermined angle is, when push rod 20 all stretches out from jogger hole 14, and the pendulum angle of swinging end 32.That is, when guaranteeing that push rod 20 can be from the situation of jogger hole 14 landings, the full swing angle of swinging end 32.Thereby expanded the applicable situation of the utility model explosion backstopping device.
If Fig. 6 is with as shown in the working state structure schematic diagram of bilateral pressing spring in a kind of embodiment of explosion backstopping device of the present utility model.For making the utility model explosion backstopping device can be, the blast institute motive force that produces compared with hour, also can normally use.Therefore in a kind of embodiment of the present utility model, in swinging end 32 inner sides of support bar 30, be also provided with power-assisted pressing spring 70.Specifically can, by this power-assisted pressing spring 70 by screw or bolt, be fixed on discharge end body 10.For not affecting the normal work of pressing spring 50, the thrust of setting power-assisted pressing spring 70 is less than the thrust of pressing spring 50.Thereby the outside swing of support bar 30 is played to the effect that power-assisted swings.
As shown in Figure 7, for making explosion backstopping device reaction of the present utility model more accurate, can motion accurately in jogger hole 14.Therefore, in a kind of embodiment of the present utility model, inner cavity is offered in the bottom of push rod 20, the inner cavity that this inner cavity can form for arc-shaped cavity and hole shape chamber 23.Thereby make the explosive force can be from the multiple directions of the inside of push rod 20, it is applied to motive force, therefore after effectively having avoided push rod 20 1 sides stressed, moment stuck phenomenon in jogger hole 14, thereby guaranteed flexibility ratio and the reliability of the utility model borehole blasting backstopping device.
As shown in Figure 8, can, by the mode of the circle 80 of holding one's breath in push rod 20 bottom outside increases, strengthen the reaction sensitivity of explosion backstopping device, in the bar bottom of push rod, comprise: the ring recess 24 of holding one's breath, the ring recess 24 of holding one's breath is corresponding with the size of the circle 80 of holding one's breath, and the circle 80 that makes to hold one's breath is assemblied in holds one's breath in ring recess 24.Therefore, make the gas-tight property between push rod 20 and jogger hole 14 better, thereby ensured that push rod 20 can obtain higher motive force.Thereby, improved the reaction sensitivity of explosion backstopping device.
Above-described is only embodiments more of the present utility model.For the person of ordinary skill of the art, not departing under the prerequisite of the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (10)
1. explosion backstopping device, is characterized in that, comprising: discharge end body, push rod and support bar; Described discharge end body radially comprises the jogger hole communicating with discharge orifice, and described push rod is arranged in described jogger hole, and when described discharge orifice discharge, described push rod stretches out from described jogger hole; The swinging end of described support bar is arranged at stretching out on track of described push rod, the rotation end of described support bar is flexibly connected with described discharge end body, when described push rod stretches out from described jogger hole, promote described swinging end around described rotation end, to the outer side oscillation of described discharge end body.
2. explosion backstopping device according to claim 1, is characterized in that, also comprises: pressing spring, described pressing spring is arranged at the swing side of described support bar, is fixedly connected with described discharge end body, makes described support bar be pressed in described push rod.
3. explosion backstopping device according to claim 1, is characterized in that, the rotation end of described support bar is that revolute pair is connected with described discharge end body.
4. explosion backstopping device according to claim 1, is characterized in that, described jogger hole is bellmouth, and the profile of described push rod and described bellmouth is corresponding.
5. explosion backstopping device according to claim 3, is characterized in that, also comprises: sheath, described sheath be fixed on described swinging end supporting surface or, be wrapped in described swinging end outside.
6. explosion backstopping device according to claim 2, is characterized in that, the external part of described push rod is top cap, and described top cap external diameter is greater than described jogger hole aperture.
7. explosion backstopping device according to claim 6, it is characterized in that, the steady pin of described pressing spring is arranged at the rotation end of described support bar, making the angle that radially wobbles of described swinging end is predetermined angle or maximum predetermined angle, described maximum predetermined angle is, when the extension elongation of described push rod is push rod length described in the pendulum angle of swinging end.
8. explosion backstopping device according to claim 7, it is characterized in that, also comprise: power-assisted pressing spring, described power-assisted pressing spring is arranged at the inner side of the swinging end of described support bar, be fixedly connected with described discharge end body, the thrust of described power-assisted pressing spring is less than the thrust of described pressing spring.
9. explosion backstopping device according to claim 1, is characterized in that, the low side of described push rod comprises: inner cavity.
10. explosion backstopping device according to claim 1, is characterized in that, also comprises: the circle of holding one's breath, the bottom of described push rod comprises: the ring recess of holding one's breath, described in hold one's breath ring recess with described in the circle of holding one's breath corresponding, described in the circle ring recess inside of holding one's breath described in being assemblied in of holding one's breath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704442.5U CN203561297U (en) | 2013-11-08 | 2013-11-08 | Blasting retaining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704442.5U CN203561297U (en) | 2013-11-08 | 2013-11-08 | Blasting retaining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561297U true CN203561297U (en) | 2014-04-23 |
Family
ID=50511013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320704442.5U Withdrawn - After Issue CN203561297U (en) | 2013-11-08 | 2013-11-08 | Blasting retaining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634196A (en) * | 2013-11-08 | 2015-05-20 | 北京天高智机技术开发公司 | Blasting retaining device |
-
2013
- 2013-11-08 CN CN201320704442.5U patent/CN203561297U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634196A (en) * | 2013-11-08 | 2015-05-20 | 北京天高智机技术开发公司 | Blasting retaining device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204461229U (en) | The low power safety blasting unit in colliery | |
| CN103510979B (en) | Dry ice explosion and air-permeability-enhancing device and method for drawing out gas by using same | |
| CN106351659B (en) | A kind of carbon dioxide fracturing device | |
| CN204941505U (en) | Liquid carbon dioxide big gun is with proppant explosion permeability improvement device | |
| CN104375167A (en) | Down-hole coal seam earthquake CT detection vibroseis and method based on seismal waves excited by spring | |
| CN201428439Y (en) | Energy-increased explosion enlargement type perforating gun single connector | |
| CN206581900U (en) | A kind of multistage ignites the safe tubing string of explosion fracturing step by step | |
| CN203561297U (en) | Blasting retaining device | |
| CN204663509U (en) | Anti-reflection system is shaken in carbon dioxide coal seam | |
| CN108413826A (en) | A kind of deep hole standing shot device and method | |
| CN201225138Y (en) | Oil conduit transportation perforation press control on-off machine | |
| CN104634196B (en) | Explosion backstopping device | |
| CN104634202B (en) | High intensity explosion backstopping device | |
| CN201661242U (en) | Large-aperture petroleum drilling and production impactor | |
| CN206158745U (en) | Carbon dioxide sends and splits ware | |
| CN205138349U (en) | Spring contraction type detonator big gun line fixing device | |
| CN205784917U (en) | A kind of fracturing cylinder | |
| CN206280072U (en) | Catalase device and development machine | |
| CN203687800U (en) | High-strength blast retaining device | |
| CN103256029B (en) | Cable transfer secondary is gone into the well oriented perforation method and device | |
| CN207231326U (en) | A kind of carbon dioxide fracturing device only winged device | |
| CN204754894U (en) | Module perforation for rifle efflux energization pass and to explode device | |
| CN201934086U (en) | Compound perforating device carried with supporting agent | |
| CN203687801U (en) | Manual blasting stopper | |
| CN108731560B (en) | Blasting structure of high-efficient blasting unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140423 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |