Portable shot hole plugging device

Abstract

The utility model belongs to the technical field of tunnel blasting construction, and particularly relates to a portable shot hole plugging device which comprises a filling pipe and barb structures, the filling pipe is of a columnar hollow structure, the front end of the filling pipe is open, the tail end of the filling pipe is closed, and the barb structures are sequentially arranged at the tail end of the surface of the filling pipe in the length direction in a plurality of circles. Every two adjacent circles of barb structures are distributed in a staggered mode in the circumferential direction and form a closed circumference, the tail ends of the barb structures incline outwards, and a plurality of through grooves are formed in the area, located between the front end of the filling pipe and the circle of barb structures on the foremost side, of the surface of the filling pipe in the circumferential direction at equal intervals. The blast hole plugging device has the advantages that the blast hole is plugged conveniently, the plugging effect and the production efficiency and quality are improved, and meanwhile the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tunnel blasting construction technology; specifically, this utility model relates to a portable blast hole sealing device. Background Technology

[0002] Achieving an ideal blast is far from easy. It requires not only sufficient explosive energy from the explosives but also ensuring that the gases produced by the explosion have enough time to react. Specifically, when the rock mass is not yet completely broken, the plugging material plays a crucial role, firmly confining the explosive gas products within the borehole and maintaining their effect for a relatively long period. During this time, the explosive gases can more effectively expand and penetrate the fissures within the rock mass. Traditional methods of making plugging material have relied on workers mixing clay on-site and shaping it by hand. This traditional method has many drawbacks: extremely low work efficiency, requiring workers to expend enormous physical and mental energy, resulting in extremely high labor intensity. Moreover, the construction site environment is often harsh, with dust and noise, posing a serious threat to the physical and mental health of workers. Furthermore, the hand-shaped plugging material is often irregular in form, with inconsistent sizes and shapes, severely affecting the effectiveness and safety of the blasting.

[0003] With the continuous improvement of the mechanization of tunnel construction, the blasting machine has gradually replaced the traditional manual production. However, the following problems still exist in the process of use: (1) Cumbersome operation: The blasting machine requires multiple steps to complete the production, including selecting the appropriate pump, adjusting the air pressure, and controlling the mud discharge speed. It has high technical requirements for operators and requires a long period of training to master; (2) Low efficiency: The blasting machine requires pipeline connection, cleaning, and debugging during the production process. These steps consume a lot of time and energy, resulting in low production efficiency; (3) High cost: Due to the cumbersome operation and low production efficiency of the blasting machine, more manpower and resources are needed to produce the same number of products. At the same time, the blasting machine also requires more cost in maintenance and upkeep. For example, pumps, pipelines and other components need to be replaced and maintained regularly; (4) Short storage time: If the blasting mud is exposed to direct sunlight, high temperature, high humidity and other environments, the blasting mud may age faster and shorten the service life. Utility Model Content

[0004] In view of this, the present invention provides a portable blast hole sealing device, thereby solving or at least alleviating the above-mentioned problems existing in the prior art. It has a convenient sealing function for blast holes, improves the sealing effect, production efficiency and quality, and reduces the labor intensity of workers.

[0005] To achieve the aforementioned objective, this utility model provides a portable borehole sealing device, comprising a loading tube and a barbed structure. The loading tube has a cylindrical hollow structure with an open front end and a closed rear end. The barbed structure has multiple rings arranged sequentially along the length of the rear end of the loading tube surface. Adjacent rings of barbed structures are staggered in the circumferential direction, forming a closed circumference. The barbed structure is arranged with the rear end inclined outward. The surface of the loading tube has multiple through grooves equidistantly arranged along the circumferential direction in the area between its front end and the foremost ring of barbed structures.

[0006] In the portable borehole sealing device described above, optionally, the filling tube is a tubular structure made of plastic tube or biodegradable material, and the barbed structure is a strip structure with a rectangular or circular cross-section.

[0007] In the portable blast hole sealing device described above, optionally, the through groove is a strip groove, and the distance between two adjacent through grooves is greater than the width of the through groove.

[0008] In the portable gun hole sealing device described above, optionally, a filling structure is provided inside the loading tube, and the filling structure is gun slag.

[0009] In the portable borehole sealing device described above, optionally, an inwardly inclined inner strip is provided in the through groove, and a conical plate is provided on the inner end of the inner strip, the generatrix of the conical plate being parallel to the inner strip.

[0010] In the portable borehole sealing device described above, optionally, two adjacent conical plates are in contact in the circumferential direction, and a circular hole is formed between the inner ends of all the conical plates.

[0011] This utility model has the following beneficial effects:

[0012] (1) Simple operation and high production efficiency: The slag after the blasting is completed can be loaded into the loading tube to complete the production.

[0013] (2) Good sealing effect and firm fixation: On the one hand, the loading tube expands outward from the central rectangular hollow position due to the impact of the explosive gas, so that the loading tube and the internal filling material are in close contact with the hole wall, which improves the sealing effect; on the other hand, after the barbed structures of different layers are stacked, they can form a closed structure, which improves the sealing effect of the blast hole. At the same time, after contacting the inside of the blast hole, the friction between it and the hole wall is increased, ensuring that the portable blast hole sealing device is firmly fixed.

[0014] (3) No storage time limit: The internal filling material can be filled with the blasting debris after the explosion. Compared with traditional blasting clay, there is no storage time limit after the production is completed.

[0015] (4) Energy saving and environmental protection: The portable blast hole sealing device can be made entirely of recycled plastic or biodegradable materials, resulting in significant energy saving and environmental protection benefits. Attached Figure Description

[0016] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the portable borehole sealing device of this utility model.

[0018] Figure 2 This is a schematic diagram of the inner extension bar, conical plate, and circular hole of this utility model.

[0019] Reference numerals: 1-filling tube; 2-barbed structure; 3-through groove; 4-filling structure; 5-inner extension strip; 6-conical plate; 7-round hole. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1 and Figure 2 As shown, a typical embodiment of this utility model provides a portable blast hole sealing device, including a loading tube 1 and a barbed structure 2. The loading tube 1 has a columnar hollow structure with an open front end and a closed rear end. The barbed structure 2 is arranged in multiple rings along the length direction at the rear end of the surface of the loading tube 1. Adjacent rings of barbed structures 2 are staggered in the circumferential direction and form a closed circumference. The barbed structure 2 is arranged with its rear end tilted outward. Multiple through grooves 3 are equidistantly arranged along the circumferential direction in the area between its front end and the foremost ring of barbed structures 2 on the surface of the loading tube 1.

[0022] In a relatively specific embodiment, the filling tube 1 has a rectangular hollow design in the middle and is evenly distributed in a ring. During the blasting process, it is impacted by the explosive gas, and the filling tube expands outward from the central rectangular hollow position, so that the filling tube and the internal filling material are in close contact with the hole wall, thereby improving the sealing effect.

[0023] With this design, on the one hand, when impacted by the explosive gas, the loading tube 1 expands outward from the central rectangular hollow position, allowing the loading tube 1 and its internal filler to come into close contact with the borehole wall, thus improving the sealing effect; on the other hand, the quincunx-shaped barb structure 2 at the tail of the loading tube 1, with its different layers of barb structures 2 overlapping, can form a closed state, improving the borehole sealing effect and firmly confining the explosive gas products within the borehole. At the same time, after contacting the inside of the borehole, it increases the friction between the device and the borehole wall, ensuring that the portable borehole sealing device is firmly fixed.

[0024] The filling tube 1 is a tubular structure made of plastic or biodegradable materials, while the barbed structure 2 is a strip-shaped structure with a rectangular or circular cross-section. The use of recycled plastics or biodegradable materials results in significant energy-saving and environmental benefits.

[0025] The through-slot 3 is a strip-shaped channel, and the distance between two adjacent through-slots 3 is greater than the width of the through-slot 3. When impacted by explosive gases, a portion of the filling structure 4 emerges from the through-slot 3 and directly enters the blast hole, effectively sealing the blast hole.

[0026] The loading tube 1 is equipped with a filling structure 4, which is blasting slag. At this time, the internal filling material is made by using the blasting slag after the explosion. Compared with traditional blasting clay, there is no time limit for storage after the production is completed, and the operation is simple and the production efficiency is high: the production is completed by using the blasting slag to fill the loading tube 1.

[0027] The channel 3 is equipped with an inwardly inclined inner strip 5, and a conical plate 6 is provided on the inner end of the inner strip 5. The generatrix of the conical plate 6 is parallel to the inner strip 5. When impacted by blasting gas, the conical plate 6 will move outward under the compression of the filler material, thereby actively squeezing a large amount of filler material outward using its plane, so as to ensure that the filler material can fill the blast hole more efficiently and fully, and improve the sealing effect.

[0028] Adjacent conical plates 6 are in circumferential contact, and circular holes 7 are formed between the inner ends of all conical plates 6. This arrangement creates a gap between adjacent inner extensions 5, facilitating the loading of filler material into the loading tube 1. Simultaneously, the circular holes 7 ensure the filler material fills the loading tube 1 completely. Especially during the process of pressing the filler material into the loading tube 1, the conical plates 6, with their bottom ends angled inwards, prevent outward movement, allowing them to better maintain their initial state. This ensures maximum space between the conical plates 6 and the loading tube 1, maximizing the amount of filler material. This allows the conical plates 6 to expel a sufficient amount of filler material into the borehole under the impact of explosive gases, improving the sealing effect.

[0029] The specific operating procedure is as follows:

[0030] Step 1: Use the blasting debris after the explosion to fill the filling tube 1, ensuring that it is packed tightly; if the blasting debris is relatively loose, you can pour in an appropriate amount of water to improve the overall integrity.

[0031] Step 2: Insert N portable borehole sealing devices into the borehole to seal the borehole (N≥1), ensuring that the barbed part 2 of the loading tube 1 faces the borehole opening.

[0032] Step 3: All blast holes must be plugged according to the required blast hole plugging length until the overall blast hole plugging operation is completed.

[0033] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A portable hole plugging device, characterized by, The application relates to a filling pipe (1) and a barb structure (2), wherein the filling pipe (1) is a cylindrical hollow structure, the front end of the filling pipe (1) is open, the tail end of the filling pipe (1) is closed, the barb structure (2) is arranged on the tail end surface of the filling pipe (1) in a length direction and is sequentially provided with multiple turns, the adjacent two turns of the barb structure (2) are staggered in a circumferential direction and form a closed circumference, the barb structure (2) is arranged in a state of being outwardly inclined at the tail end, and multiple through grooves (3) are equidistantly arranged in a circumferential direction in a region between the front end of the filling pipe (1) and the most front turn of the barb structure (2).

2. A portable hole plugging device according to claim 1, wherein, The filling pipe (1) is a tubular structure made of plastic or degradable material, and the barb structure (2) is a strip structure with a rectangular or circular cross section.

3. A portable hole plugging device according to claim 1, wherein, The through groove (3) is a strip-shaped groove, and the distance between the adjacent two through grooves (3) is greater than the width of the through groove (3).

4. The portable hole plugging device of claim 1, wherein, The filling pipe (1) is provided with a filling structure (4), and the filling structure (4) is a cannonball.

5. The portable hole plugging device of claim 1, wherein, The through groove (3) is provided with an inner extension strip (5) which is inwardly inclined at the bottom end, and the inner side end of the inner extension strip (5) is provided with a conical sheet (6), and the generatrix direction of the conical sheet (6) is parallel to the inner extension strip (5).

6. A portable hole plugging device according to claim 5, wherein, The adjacent two conical sheets (6) are in contact in a circumferential direction, and the inner side ends of all the conical sheets (6) form a circular hole (7).

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