CN112414244B - Self-sealing orifice clamping device and construction method thereof - Google Patents
Self-sealing orifice clamping device and construction method thereof Download PDFInfo
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- CN112414244B CN112414244B CN202011412158.1A CN202011412158A CN112414244B CN 112414244 B CN112414244 B CN 112414244B CN 202011412158 A CN202011412158 A CN 202011412158A CN 112414244 B CN112414244 B CN 112414244B
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- 238000007789 sealing Methods 0.000 title claims abstract description 72
- 238000010276 construction Methods 0.000 title abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 210000000078 claw Anatomy 0.000 claims description 56
- 238000005422 blasting Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 6
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- 238000001035 drying Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 210000002435 tendon Anatomy 0.000 description 10
- 235000015278 beef Nutrition 0.000 description 9
- 239000007789 gas Substances 0.000 description 7
- 239000002360 explosive Substances 0.000 description 6
- 238000004880 explosion Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
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- 230000009471 action Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
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- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
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- 239000010438 granite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention provides a self-sealing orifice clamping device, which comprises a self-sealing component and an orifice clamping component; the orifice clamping component comprises a cylindrical hollow cylinder (3), a first through hole is formed in the top plate of the hollow cylinder (3), and an external rotating block (2) is connected in the first through hole in a rotating mode; the bottom end of the external rotating block (2) is provided with a threaded hole (12) penetrating into the external rotating block, and a pushing rod (7) is connected in the threaded hole (12) in a threaded manner; the bottom plate (8) of the hollow cylinder (3) is provided with a third through hole, and the long straight rod part (9) passes through the third through hole and is fixedly connected with the support plate (10) of the self-sealing component. The invention also discloses a construction method of the self-sealing orifice clamping device. The mechanical self-sealing orifice clamping device is suitable for plugging various orifices, does not use other plugging materials (quick-drying cement and the like), can be reused, and has the advantages of high plugging efficiency, good sealing performance and convenient operation.
Description
Technical Field
The invention relates to a self-sealing orifice clamping device and a construction method thereof, belonging to the technical fields of blasting devices, blasthole orifices and blasthole plugging.
Background
In municipal traffic engineering such as mining and stone exploitation, foundation pit excavation, tunnel and underground space construction, hard stone/boulder safe blasting demolition, blocking dredging of pipelines and the like, blasting is often required. The blasting fracturing method has the characteristics of high efficiency, low cost and the like, and is widely applied to rock excavation of mining engineering, underground traffic engineering, hydraulic and hydroelectric engineering and the like.
The blast hole plugging plays an important role in engineering blasting, reasonable plugging can ensure that the explosive fully reacts, so that the explosive emits maximum heat, toxic gas generation is reduced, and the explosion energy utilization rate of the explosive is improved; the damage of air shock waves to surrounding roadways and surrounding buildings is reduced, the risk of explosion such as gas dust is reduced, and the explosion effect is improved.
The blast hole blocking is used as an important link in the deep hole pre-splitting blasting process, and the blasting quality is directly influenced. Reasonable blast hole shutoff can prolong the action time of blasting gas, improve the blast hole utilization ratio, reduce the flying stone quantity, reduce explosion risks such as dust, gas, etc., improve blasting effect.
At present, most of metal and nonmetal underground medium-length hole blasting is insufficient in understanding of the effect of blast hole plugging in the blasting process, and many blasting projects are not plugged, so that the expected blasting effect is realized by increasing the explosive quantity. With the understanding of the blast hole plugging effect, more and more blasting projects perform blast hole plugging.
The current blast hole plugging is filled by quick-drying cement and the like, generally, clay (added with a small amount of water) is pinched and molded at first, then the clay is manually plugged into the blast hole, and a rod is used for tamping while the clay is plugged. For downward blastholes, stemming easily enters the blastholes under the action of gravity, and the blastholes are easy to be plugged; however, for horizontal blast holes or inclined upward blast holes, the conventional blast hole plugging technology has the defects that the blast hole wall is irregular and not smooth, stemming is easy to be blocked by middle bulges in the process of filling, the stemming is damaged, the stemming cannot be delivered to a designated position, the inside of the stemming is hollow, the stemming cannot be filled in place, and the blasting effect is seriously influenced. In addition, when the method is used for filling the blast holes, a certain time is often required to enable the tamping plug to be consolidated to reach a certain strength, the plugging effect is influenced by factors such as plugging material properties, consolidation time, operation modes and the like, the method is disposable, consumables are serious, and waste pollution is easy to generate. Therefore, there is a need to develop a mechanical, easy to operate, reusable self-sealing orifice-blocking device.
Disclosure of Invention
The invention aims to solve the technical problems of providing the self-sealing orifice clamping device which is mechanical, good in sealing performance, firm in orifice blocking, simple to operate and capable of being repeatedly used.
Meanwhile, the invention provides a construction method of the self-sealing orifice clamping device.
In order to solve the technical problems, the invention adopts the following technical scheme:
a self-sealing orifice clamping device comprises a self-sealing component and an orifice clamping component;
The orifice clamping component comprises a cylindrical hollow cylinder, a first through hole is formed in the top plate of the hollow cylinder, and an external rotating block is connected to the first through hole in a rotating mode;
The bottom end of the external rotating block is provided with a threaded hole penetrating into the external rotating block, and the threaded hole is internally connected with a pushing rod in a threaded manner;
The pushing rod comprises a threaded part in threaded connection with the threaded hole, a conical expansion part integrally connected with the threaded part and a long straight rod part integrally connected with the conical expansion part;
The wall grabbing claw is movably arranged in the second through hole and comprises an inner end head which is positioned in the hollow cylinder and contacted with the pushing rod and a toothed wall grabbing surface which is positioned outside the hollow cylinder and used for clamping the wall of the gun hole;
The outer wall of the wall grabbing claw is connected with the outer wall of the hollow cylinder through an elastic element;
A third through hole is formed in the bottom plate of the hollow cylinder, and the long straight rod part penetrates through the third through hole and is fixedly connected with the support plate of the self-sealing member;
The opposite surfaces of the bottom plate and the support plate extend to opposite surfaces of the bottom plate and the support plate respectively, and an elastic rod is arranged between the two annular convex edges;
The inside through-hole that is used for running through of elastic rod is provided with the elastic rod with interference fit between the long straight-bar, the elastic rod upper and lower both ends with the protruding edge looks adaptation of annular, the middle part diameter of cowhells stick is greater than the inner wall diameter along the annular is protruding.
The diameter of the conical expansion part gradually increases from the threaded part to the long straight rod part.
The inner end is arc-shaped and is matched with the conical expansion part.
The toothed wall surface comprises a plurality of metal teeth.
The external rotating block is rotatably connected in the first through hole through a bearing.
And a spanner is arranged at the top of the external rotating block.
The threaded part and the conical expansion part are both positioned in the hollow cylinder.
The elastic element comprises a spring.
The elastic rod comprises a cowhells rod; the outer surface of the elastic rod is provided with a plurality of anti-rotation textures.
A construction method of a self-sealing orifice clamping device comprises the following steps:
step one: the self-sealing orifice clamping device is placed into a blast hole, a wall grabbing claw extends into the blast hole, and a spanner is left outside the blast hole;
Step two: rotating the wrench, wherein the wrench drives the pushing rod to move forwards, the support plate of the self-sealing component connected with the pushing rod moves forwards and compresses the elastic rod, and the elastic rod transversely expands to be the same as the diameter of the blast hole;
Step three: continuing to rotate the wrench, continuing to move the pushing rod forwards, and continuing to extend the wall grabbing claw outwards until the outer diameter of the wall grabbing claw is the same as the outer diameter of the expanded elastic rod;
step four: at the moment, the wrench is continuously rotated until the wall grabbing claw is inserted into the wall of the gun and has certain pressure, the wrench is stopped to rotate, the clamping sealing operation is completed, and blasting is started;
step five: after blasting is finished, the wrench is reversely rotated, the wall grabbing claw is loosened, the elastic rod slowly returns to the original state, the self-sealing orifice clamping device is taken out from the blast hole, and the operation is finished.
The invention has the beneficial effects that:
1. according to the self-sealing orifice clamping device, the wall grabbing claw is pushed out to clamp the wall of the blast hole, so that mechanical blocking of the orifice is realized, and the orifice is transversely expanded by compressing the cowhells to realize sealing.
2. The self-sealing orifice clamping device disclosed by the invention is used for clamping by virtue of friction between the wall grabbing claw and the wall of the gun, is suitable for various rock mass blasting gun holes, is suitable for explosive blasting and various high-energy gas fracturing, and is simple to operate by only rotating a wrench to achieve required pressure.
3. The self-sealing orifice clamping device provided by the invention uses the cowhells as the sealing device, so that the high-pressure gas is ensured not to leak, and the gas sealing effect is good.
4. According to the self-sealing orifice clamping device, mechanical orifice clamping is utilized, the beef tendon rod is sealed and blocked, clamping sealing can be achieved without participation of other chemical materials, safety and environmental protection are achieved, pollution residues are avoided, time difference is not needed, explosion can be conducted after clamping, and time is saved.
5. The self-sealing orifice clamping device provided by the invention realizes clamping sealing by using the wall grabbing claw and the beef tendon rod, has the recovery procedures of the wall grabbing claw and the beef tendon rod, can be reused, and is economical and practical.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the structure of the outer rotating block of the present invention;
FIG. 4 is a schematic view of the hollow cylinder of the present invention;
fig. 5 is a schematic view of the structure of the pushing bar in the present invention.
Detailed Description
The invention is further described in detail below with reference to the drawings and the specific examples, as a novel three-way independently loaded hybrid boundary true triaxial apparatus.
Example 1:
As shown in fig. 1 and 2, a self-sealing orifice-blocking device includes a self-sealing member and an orifice-blocking member; the orifice stopper member comprises a cylindrical hollow cylinder 3.
As shown in fig. 4, the hollow cylinder 3 is formed by enclosing a top plate, a bottom plate 8 and a side wall, a conical pushing rod 7 positioned inside and an external rotating block 2 are formed, the side wall of the cylindrical hollow cylinder 3 extends out of the wall grabbing claw 4, the top of the hollow cylinder 3 is movably connected with the external rotating block 2, and the bottom of the hollow cylinder 3 is connected with a self-sealing component.
As shown in fig. 3, the external rotating block 2 passes through the top plate of the cylindrical hollow cylinder 3 and is movable, a threaded hole 12 is arranged in the center of the bottom of the external rotating block 2 and goes deep inside, and a wrench 1 is arranged at the top of the external rotating block 2 and extends out for rotation.
Preferably, a first through hole is arranged on the top plate of the hollow cylinder 3, and an external rotating block 2 is rotatably connected in the first through hole through a bearing.
As shown in fig. 5, the wall grabbing claw 4 has scalability, the inner end 15 of the wall grabbing claw 4 is arc-shaped and is contacted with the conical pushing rod 7, the two outer sides of the wall grabbing claw 4 are connected with the side wall of the hollow cylinder 3 by elastic elements 5, the elastic elements 5 are preferably springs, and the outer top end of the wall grabbing claw 4 is a tooth-shaped wall grabbing surface 16; the lower part of the pushing rod 7 is provided with a long straight rod part 9, the long straight rod part 9 is connected with a support plate 10 of the self-sealing component, the long straight rod part 9 upwards penetrates through a cylindrical elastic rod 11 with holes, the elastic rod 11 is preferably made of cowhells, the long straight rod part 9 is upwards provided with a conical expansion part 14, the conical expansion part 14 is upwards provided with a threaded part 13, the threaded part 13 extends into a threaded hole 12 of the external rotating block 2, and the conical expansion part 14 is contacted with the wall grabbing claw 4 to be pushed up and down.
The self-sealing member comprises a cylindrical elastic rod 11, the bottom plate 8 of the hollow cylinder 3 is used as a top extrusion plate of the self-sealing member, the support plate 10 is used as a bottom extrusion plate of the self-sealing member, and the long straight rod 9 passes through the bottom plate 8 and is connected with the support plate 10.
The self-sealing orifice clamping device clamps the wall of the gun hole by pushing out the wall grabbing claw 4, so that the orifice is mechanically blocked, and the elastic rod 11 is compressed to transversely expand the orifice to realize sealing.
The self-sealing orifice clamping device is used for carrying out calculation and field experiments according to the diameter of a field blast hole and the material of the wall of the blast hole, obtaining the relation between the movement distance required by the wall grabbing claw 4 and the compression distance required by the elastic rod 11 when the blast hole is sealed and the clamping device is firmly clamped, selecting the diameter of the cylinder barrel 3 according to the diameter of the blast hole before use, and further determining the length of the elastic rod 11, the position of the conical expansion part 14, the length of the threaded part 13 and the like according to the relation between the movement distance required by the wall grabbing claw 4 and the compression distance required by the elastic rod 11.
The hollow cylinder 3 is a hollow metal cylinder and is used for connecting the external rotating block 2, the self-sealing component, the wall grabbing claw 4 and the pushing rod 7, providing a contact space for the wall grabbing claw 4 and the pushing rod 7, providing a base for the wall grabbing claw 4 to be convenient for stretch and retract, and simultaneously enabling the external rotating block 2 and the pushing rod 7 to be in the same straight line so as to be convenient for coordination when moving back and forth.
The wrench 1 is welded at the top end of the external rotating block 2, the wrench 1 extends out of the blast hole, and the wrench 1 is manually or mechanically rotated to rotate, so that the pushing rod 7 is driven to move back and forth through the rotating threads.
Further, the upper portion of the pushing rod 7 is a straight thread, that is, the threaded portion 13 is matched with the external rotating block 2, when the pushing rod 7 is driven by the external rotating block 2 to move back and forth through the threads, the conical expansion portion 14 in the middle is in contact with the wall grabbing claw 4, and due to the diameter change of the conical expansion portion 14, the diameter of the portion in contact with the wall grabbing claw 4 is changed, the wall grabbing claw 4 is pushed to move up and down, and meanwhile the pushing rod 7 drives the support plate 10 to move back and forth, so that the elastic rod 11 between the self-sealing members is caused to deform.
Further, the wall grabbing claw 4 is cast by a metal material, the bottom of the wall grabbing claw 4 is arc-shaped and is matched with the conical expansion part 14 of the pushing rod 7, the top of the wall grabbing claw 4 is provided with a plurality of fine and sharp metal teeth, and when the pushing rod 7 moves forwards, the conical expansion part 14 is contacted with the bottom arc of the wall grabbing claw 4, and then the wall grabbing claw 4 is pushed to move upwards until the metal teeth at the top of the wall grabbing claw 4 clamp the wall of a gun hole; the two sides outside the wall grabbing claw 4 are connected with elastic elements 5, the elastic elements 5 are preferably spring strips, the springs are in a natural state before the wall grabbing claw 4 is not pushed out, the springs are stretched after the wall grabbing claw 4 is pushed out, the wall grabbing claw 4 is subjected to downward (namely, towards the direction of the hollow cylinder 3), and when the pushing rod 7 is retracted and the contact diameter of the conical expansion part 14 and the bottom arc of the wall grabbing claw 4 is reduced, the wall grabbing claw 4 is pulled back to the original position by the springs.
Further, the bottom plate 8 of the hollow cylinder 3 is fixed, the center of the bottom plate 8 passes through the pushing rod 7 and is movably connected with the long straight rod part 9 of the pushing rod 7, the self-sealing member is internally provided with a cowhell rod, the cowhell rod has certain elasticity, the support plate 10 is welded with the long straight rod part 9 and moves back and forth along with the long straight rod part 9, when the support plate 10 moves forward, the cowhell rod is extruded to transversely deform until the sealing requirement is met by clinging to the wall of a blast hole, and when the support plate 10 moves backward, the cowhell rod is stressed to relax and automatically recover.
Further, the center of the cowhells stick is provided with a through cylindrical hollow core, the long straight rod part 9 at the lower part of the pushing stick 7 penetrates out of the cylindrical hollow core and is connected to the support plate 10, the wrench 1 is rotated, when the external rotating block 2 drives the pushing stick 7 to move forwards, the support plate 10 is driven to move forwards, the distance between the upper extruding plate and the lower extruding plate is reduced, the cowhells stick is extruded to expand towards the side surface to be protruded, the longer the forward moving distance of the support plate 10 is, the thicker the cowhells stick is, and the longer the outwards pushing distance of the wall grabbing claw 4 is. After the support plate 10 moves forwards for a certain distance, the wall grabbing claws 4 firmly grab the wall of the gun hole at the moment, and the beef tendon rod bulges press the wall of the gun hole at the same time, so that clamping and self sealing are realized. After the operation is finished, the wrench 1 is reversely rotated, the pushing rod 7 is pushed backwards, and the wall grabbing claw 4 and the beef tendon rod can be loosened, so that the self-sealing orifice clamping device is detached, and the recycling is realized.
Further, the opposite surfaces of the bottom plate 8 and the support plate 10 extend to opposite surfaces thereof respectively to form annular convex edges, and an elastic rod 11 is arranged between the two annular convex edges; the elastic rod 11 with interference fit between the long straight rod part 9, interference fit's setting can prevent that the cowhells stick from taking place to rotate, the surface of elastic rod 11 is provided with a plurality of anti-rotation textures, and anti-rotation textures are a plurality of oblique stripes preferably, prevent the setting of rotating the texture, further prevent that the cowhells stick from taking place to rotate to realize the fore-and-aft motion of cowhells stick.
Example 2:
A construction method of a self-sealing orifice clamping device comprises the following steps:
according to the on-site blast hole diameter and the blast hole wall material, calculation and on-site experiments are carried out, for example, the blast hole diameter is 110mm, the hole wall material is granite, then the proper diameter of the hollow cylinder 3, the length of the beef tendon rod, the position of the conical expansion part 14, the telescopic distance of the wall grabbing claw 4, the length of the threaded part 13 and the like are selected according to the conditions, in the case, the hollow cylinder 3 with the diameter of 100mm is selected, the in-situ diameter of the wall grabbing claw 4 is 104mm, the maximum extension diameter is 118mm, the original diameter of the beef tendon rod is 100mm, and the specific use method comprises the following steps:
Step one: the self-sealing orifice clamping device is placed into a blast hole, a wall grabbing claw 4 partially stretches into the blast hole, and a spanner 1 is left outside the blast hole;
step two: turning the wrench 1, driving the pushing rod 7 to move forwards by the wrench 1, and connecting a long straight rod part 9 of the pushing rod 7 with a support plate 10 of the self-sealing component to move forwards to compress the beef tendon rod, wherein the beef tendon rod is transversely deformed at the moment;
Step three: the diameter of the cowhells rod reaches 110mm when the cowhells rod is compressed forward for 20mm, and the outer diameter of the wall grabbing claw 4 is 108mm;
Step four: when the wrench 1 is rotated and the pushing rod 7 continues to move forwards, the wall grabbing claw 4 continues to extend outwards until the outer diameter reaches 110mm;
Step five: at the moment, the wrench 1 is continuously rotated, the wall grabbing claw 4 is inserted into the wall of the gun and has certain pressure, the wrench 1 is stopped rotating, meanwhile, the cowhells between the self-sealing members are transversely restrained, the area of the part reaching the diameter is enlarged because the external diameter is not changed after reaching 110mm, the sealing effect is in the best state, the clamping sealing operation is completed, and the blasting is started;
Step six: after blasting is finished, the wrench 1 is reversely rotated, the wall grabbing claw 4 is loosened, the tendon rod is slowly restored to the original state, the self-sealing orifice clamping device is taken out, and the operation is finished.
Through the steps, the mechanical self-sealing orifice clamping device is adopted to realize the ideal blast hole clamping sealing effect, the operation is simple, the repeated use is realized, no pollution waste is generated, and the device is suitable for orifice plugging operation of explosive blasting or high-energy gas fracturing in various stratums and is also suitable for plugging small blast holes in a laboratory.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed as reflecting the intention that: i.e., the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
As used herein, unless otherwise specified the use of the ordinal terms "first," "second," "third," etc., to describe a general object merely denote different instances of like objects, and are not intended to imply that the objects so described must have a given order, either temporally, spatially, in ranking, or in any other manner.
While the invention has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of the above description, will appreciate that other embodiments are contemplated within the scope of the invention as described herein. Furthermore, it should be noted that the language used in the specification has been principally selected for readability and instructional purposes, and may not have been selected to delineate or circumscribe the inventive subject matter. Accordingly, many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the appended claims. The disclosure of the present invention is intended to be illustrative, but not limiting, of the scope of the invention, which is defined by the appended claims.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (10)
1. The self-sealing orifice clamping device is characterized by comprising a self-sealing component and an orifice clamping component;
The orifice clamping component comprises a cylindrical hollow cylinder (3), a first through hole is formed in the top plate of the hollow cylinder (3), and an external rotating block (2) is connected in the first through hole in a rotating mode;
the bottom end of the external rotating block (2) is provided with a threaded hole (12) penetrating into the external rotating block, and the threaded hole (12) is internally connected with a pushing rod (7) in a threaded manner;
The pushing rod (7) comprises a threaded part (13) in threaded connection with the threaded hole (12), a conical expansion part (14) integrally connected with the threaded part (13) and a long straight rod part (9) integrally connected with the conical expansion part (14);
The wall grabbing claw (4) is movably arranged in the second through hole, and the wall grabbing claw (4) comprises an inner end (15) which is positioned in the hollow cylinder (3) and is in contact with the pushing rod (7) and a toothed wall grabbing surface (16) which is positioned outside the hollow cylinder (3) and is used for clamping the wall of the gun hole;
The outer wall of the wall grabbing claw (4) is connected with the outer wall of the hollow cylinder (3) through an elastic element (5);
A third through hole is formed in the bottom plate (8) of the hollow cylinder (3), and the long straight rod part (9) penetrates through the third through hole and is fixedly connected with the support plate (10) of the self-sealing member;
The opposite surfaces of the bottom plate (8) and the support plate (10) extend towards opposite surfaces of the bottom plate and the support plate respectively, and an elastic rod (11) is arranged between the two annular convex edges;
The inside through-hole that is used for running through long straight-bar portion (9) that is provided with of elastic rod (11), elastic rod (11) with interference fit between long straight-bar portion (9), the upper and lower both ends of elastic rod (11) with protruding edge looks adaptation of annular, the middle part diameter of elastic rod (11) is greater than the inner wall diameter of protruding edge of annular.
2. A self-sealing orifice-blocking device according to claim 1, characterized in that the diameter of the conical enlargement (14) gradually increases from the threaded portion (13) to the long straight portion (9).
3. A self-sealing orifice-blocking device according to claim 1, characterized in that said inner end (15) is arc-shaped and is conformed to said conical enlargement (14).
4. A self-sealing orifice-gripping device according to claim 1, characterized in that said toothed gripping surface (16) comprises a plurality of metal teeth.
5. A self-sealing orifice-blocking device according to claim 1, characterized in that the outer turning block (2) is rotatably connected in the first through hole by means of a bearing.
6. A self-sealing orifice-blocking device according to claim 1, characterized in that the top of the outer turning block (2) is provided with a wrench (1).
7. A self-sealing orifice-blocking device according to claim 1, characterized in that the threaded portion (13) and the conical enlargement (14) are both located inside the hollow cylinder (3).
8. A self-sealing orifice-blocking device as claimed in claim 7, characterized in that said elastic element (5) comprises a spring.
9. A self-sealing orifice-blocking device according to claim 1, characterized in that said elastic bar (11) comprises a cowhells bar; the outer surface of the elastic rod (11) is provided with a plurality of anti-rotation textures.
10. The method of constructing a self-sealing orifice-blocking device of claim 6, comprising the steps of:
Step one: the self-sealing orifice clamping device is placed into a blast hole, a wall grabbing claw (4) stretches into the blast hole, and a spanner (1) is left outside the blast hole;
Step two: rotating the wrench (1), wherein the wrench (1) drives the pushing rod (7) to move forwards, the support plate (10) of the self-sealing member connected with the pushing rod (7) moves forwards and compresses the elastic rod (11), and at the moment, the elastic rod (11) transversely expands to be the same as the diameter of the blast hole;
step three: continuing to rotate the wrench (1), continuing to move the pushing rod (7) forwards, and continuing to extend the wall grabbing claw (4) outwards until the outer diameter of the wall grabbing claw (4) is the same as the outer diameter of the expanded elastic rod (11);
Step four: at the moment, the wrench (1) is continuously rotated until the wall grabbing claw (4) is inserted into the wall of the gun and has certain pressure, the wrench (1) is stopped to be rotated, the clamping sealing operation is completed, and the blasting is started;
Step five: after blasting is finished, the wrench (1) is reversely rotated, the wall grabbing claw (4) is loosened, the elastic rod (11) slowly returns to the original state, the self-sealing orifice clamping device is taken out from the blast hole, and the operation is finished.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205245914U (en) * | 2015-12-24 | 2016-05-18 | 山西大同大学 | Draw quick shutoff perforation plugging ware of expanding |
| CN107120086A (en) * | 2017-06-23 | 2017-09-01 | 中国科学院武汉岩土力学研究所 | A kind of erosion control hole plug device |
| CN208441096U (en) * | 2018-07-13 | 2019-01-29 | 北京航天地基工程有限责任公司 | Soil nailing port closing device |
| CN209101921U (en) * | 2018-11-20 | 2019-07-12 | 天津市金升科技有限公司 | A kind of adaptive rubber sealing structure for explosion hole |
| CN111649637A (en) * | 2020-04-27 | 2020-09-11 | 雅化集团绵阳实业有限公司 | Blast hole packer for blasting construction, and packing structure and packing construction method thereof |
| CN111964541A (en) * | 2020-08-27 | 2020-11-20 | 江苏中控能源科技有限公司 | Repetitive dry ice cracking rock breaking orifice clamping device and using method thereof |
| CN213811990U (en) * | 2020-12-02 | 2021-07-27 | 河海大学 | Self-sealing type orifice clamping device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2577481A1 (en) * | 2004-10-12 | 2006-04-20 | Glen Robert Hawkins | Stemming plug |
-
2020
- 2020-12-02 CN CN202011412158.1A patent/CN112414244B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205245914U (en) * | 2015-12-24 | 2016-05-18 | 山西大同大学 | Draw quick shutoff perforation plugging ware of expanding |
| CN107120086A (en) * | 2017-06-23 | 2017-09-01 | 中国科学院武汉岩土力学研究所 | A kind of erosion control hole plug device |
| CN208441096U (en) * | 2018-07-13 | 2019-01-29 | 北京航天地基工程有限责任公司 | Soil nailing port closing device |
| CN209101921U (en) * | 2018-11-20 | 2019-07-12 | 天津市金升科技有限公司 | A kind of adaptive rubber sealing structure for explosion hole |
| CN111649637A (en) * | 2020-04-27 | 2020-09-11 | 雅化集团绵阳实业有限公司 | Blast hole packer for blasting construction, and packing structure and packing construction method thereof |
| CN111964541A (en) * | 2020-08-27 | 2020-11-20 | 江苏中控能源科技有限公司 | Repetitive dry ice cracking rock breaking orifice clamping device and using method thereof |
| CN213811990U (en) * | 2020-12-02 | 2021-07-27 | 河海大学 | Self-sealing type orifice clamping device |
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