High-pressure sprayer for pasty explosive

Abstract

The high-pressure sprayer comprises a lower connecting piece, a middle connecting piece is spirally installed on the upper side of the lower connecting piece, an upper accessory is spirally installed at the top end of the middle connecting piece, the lower connecting piece comprises a lower barrel located on the lower side, an upper barrel is installed on the top of the lower barrel, and external threads are formed in the outer ring face of the lower barrel. The high-pressure sprayer for the pasty explosive relates to the technical field of mine blasting, is provided with a lower connecting piece and a middle connecting piece which are used for being connected with a spraying machine, and is provided with two kinds of upper accessories which can be universally connected with the middle connecting piece. According to the spray head assembly, one type can be used for ejecting an explosive hole in a stone wall, the other type can be used for spraying explosives, only one upper accessory needs to be replaced, other assemblies connected with a pesticide spraying machine (or a hole digging machine) do not need to be replaced, the installation process is simplified, time is saved, the universality of the assemblies is improved, and people can use the spray head assembly conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of mine blasting, in particular to a high-pressure nozzle for paste explosives. Background Art

[0002] Blasting is a technique that uses the compression, loosening, destruction, projection, and damage effects of explosives detonating in air, water, earth, or rock to achieve a desired objective. The detonation of explosives (charges) causes compression, deformation, destruction, loosening, and projection of the material. Blasting is primarily used in earthwork projects and the demolition of metal buildings and structures. Research encompasses the properties and use of explosives and explosive tools, the effects of explosives (charges) in various media, contact and non-contact blasting of charges against targets, and the organization and execution of various blasting operations.

[0003] In the field of underground mining operations, explosives are also very common and widely used. In order to blast a mountain, it is necessary to open a blasting hole in the internal rock wall of the mountain in advance, and then fill the blasting hole with paste explosives. The viscosity of this explosive is similar to that of paste, and it can be sprayed into the hole at high pressure and adhere to the rock wall. The structure of the existing paste explosive nozzle is relatively complicated, and it takes a certain amount of time to replace the accessories when the explosives are introduced. If the drilling end and the spraying end can share the connecting parts, this can not only improve the versatility of the nozzle assembly and the ease of operation, but also save time and equipment costs. Therefore, this case is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a high-pressure nozzle for paste explosives, which solves the problems of poor versatility of the existing nozzle components and lack of a simple tool for spraying paste explosives into explosive holes.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high-pressure nozzle for paste explosives, comprising a lower connecting piece, a middle connecting piece being spirally mounted on the upper side of the lower connecting piece, and an upper accessory being spirally mounted on the top end of the middle connecting piece;

[0006] The lower connecting member includes a lower cylinder located at the lower side, an upper cylinder is mounted on the top of the lower cylinder, an outer ring surface of the lower cylinder is provided with an external thread, an inner channel penetrating the lower cylinder is provided between the lower cylinder and the upper cylinder, a cylindrical through groove is provided on the upper cylinder, the through groove is connected to the inner channel, and an inner ring surface of the through groove is provided with an internal thread;

[0007] The middle connecting piece includes a lower cylinder, an outer ring surface of the lower cylinder is provided with an external thread, the lower cylinder is inserted into the through groove and is spirally connected to the upper cylinder through an internal thread, a gasket is integrally formed on the outer ring surface of the upper top of the lower cylinder, an upper cylinder is installed on the upper side of the lower cylinder, an outer ring surface of the upper cylinder is provided with an external thread, an explosive nozzle is provided in the upper cylinder, and a cavity is provided in the lower cylinder, the cavity is cylindrical, the top of the cavity is hemispherical, and the cavity is connected to the explosive nozzle.

[0008] Preferably, the upper accessory is cylindrical in shape, the top of the upper accessory is hemispherical or bullet-shaped, a circular hole is provided at the bottom of the upper accessory, an internal thread is provided on the inner annular surface of the circular hole, and the upper accessory is spirally connected to the upper cylinder.

[0009] Preferably, the upper accessory includes a lower ring, the inner ring surface of which is provided with an internal thread, the lower ring is spirally connected to the upper cylinder, the upper port of the lower ring is evenly spaced with two pairs of columns, the two pairs of columns are integrally connected with the upper ring, and the upper surface of the lower ring is provided with a groove.

[0010] Preferably, a sphere is installed on the inner upper side of the cavity, the interior of the sphere is hollow, and the outer wall of the sphere is provided with a plurality of circular holes connected to the hollow space.

[0011] Preferably, the front and rear sides of the upper cylinder, the washer and the upper accessory are all ground with anti-slip grooves, and the anti-slip grooves on the front and rear sides of the upper cylinder, the washer and the upper accessory are aligned in a straight line. Beneficial effects

[0012] The utility model provides a high-pressure nozzle for paste explosives. It has the following beneficial effects: the nozzle is provided with a lower connector and a middle connector for connecting to a sprayer, and two upper accessories that can be universally connected to the middle connector: one for punching a hole for explosives in a stone wall, and the other for spraying explosives. This nozzle assembly only requires replacing one upper accessory, while other components connected to the sprayer (or hole puncher) remain unchanged. The holes punched in this manner are more compatible with the nozzle, simplifying the installation process, saving time, and improving the versatility of the component, making it easier for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model.

[0015] Figure 3This is a structural diagram of the second embodiment of the upper accessory of the present utility model.

[0016] In the figure: 1. lower cylinder; 2. upper cylinder; 3. inner channel; 4. through groove; 5. lower cylinder; 6. gasket; 7. upper cylinder; 8. explosive nozzle; 9. cavity; 10. circular hole; 11. lower ring; 12. column; 13. upper ring; 14. sphere; 15. anti-slip groove; 16. groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.

[0019] See also Figure 1-3 The utility model provides a technical solution: a high-pressure nozzle for paste explosives, comprising a lower connecting piece, a middle connecting piece being spirally mounted on the upper side of the lower connecting piece, and an upper accessory being spirally mounted on the top end of the middle connecting piece;

[0020] The lower connecting member includes a lower cylinder 1 located at the lower side, an upper cylinder 2 is mounted on the top of the lower cylinder 1, an outer ring surface of the lower cylinder 1 is provided with an external thread, an inner channel 3 is provided between the lower cylinder 1 and the upper cylinder 2 and passes through the lower cylinder 1, a cylindrical through groove 4 is provided on the upper cylinder 2, the through groove 4 is connected to the inner channel 3, and an inner ring surface of the through groove 4 is provided with an internal thread;

[0021] The middle connecting member includes a lower cylinder 5, an outer ring surface of the lower cylinder 5 is provided with an external thread, the lower cylinder 5 is inserted into the through groove 4 and is spirally connected to the upper cylinder 2 through an internal thread, a gasket 6 is integrally formed on the outer ring surface of the upper top of the lower cylinder 5, an upper cylinder 7 is mounted on the upper side of the lower cylinder 5, an outer ring surface of the upper cylinder 7 is provided with an external thread, an explosive nozzle 8 is provided in the upper cylinder 7, and a cavity 9 is provided in the lower cylinder 5, the cavity 9 is cylindrical, the top of the cavity 9 is hemispherical, and the cavity 9 is connected to the explosive nozzle 8;

[0022] Specifically, during the operation, first screw the lower connecting piece into the punching machine, then screw the middle connecting piece into the lower connecting piece, and then screw the upper accessory for punching into the middle connecting piece to start the punching operation. After the operation is completed, unscrew the lower connecting piece from the punching machine, connect it to the sprayer, replace the upper accessory with the one for spraying, insert the nozzle assembly into the hole just punched, and start the spraying operation.

[0023] Specifically, the lower connecting piece, the middle connecting piece and the upper fitting are all made of high-strength steel and have good hardness.

[0024] Embodiment 1: The upper accessory is cylindrical in shape, the top of the upper accessory is hemispherical or bullet-shaped, a circular hole 10 is formed at the bottom of the upper accessory, an internal thread is formed on the inner annular surface of the circular hole 10, and the upper accessory is spirally connected to the upper cylinder 7;

[0025] Specifically, the accessories of this embodiment are installed when drilling.

[0026] Embodiment 2: The upper accessory includes a lower ring 11, an inner ring surface of which is provided with an internal thread, the lower ring 11 is spirally connected to the upper cylinder 7, and the upper end of the lower ring 11 is evenly spaced with two pairs of columns 12, the two pairs of columns 12 are integrally connected with an upper ring 13, and the upper surface of the lower ring 11 is provided with a groove;

[0027] Specifically, the upper fitting of this embodiment is installed when spraying explosives.

[0028] Embodiment 3: A sphere 14 is installed on the inner upper side of the cavity 9. The interior of the sphere 14 is hollow, and the outer wall of the sphere 14 is provided with a plurality of circular holes 10 connected to the hollow interior.

[0029] Specifically, the hollow sphere 14 is mainly used to break up the explosives after they are pressed into the lower connecting piece, so that the explosives are sprayed out in a dispersed manner along the explosive nozzle 8, which is conducive to the adhesion of the explosives to the wall.

[0030] Anti-skid patterns 15 are ground on the front and rear sides of the upper cylinder 2, the washer 6 and the upper accessory, and the anti-skid patterns 15 on the front and rear sides of the upper cylinder 2, the washer 6 and the upper accessory are aligned in a straight line.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure nozzle for paste explosives, characterized in that: It consists of a lower connecting piece, a middle connecting piece and an upper fitting: the upper side of the lower connecting piece is screw-mounted with the middle connecting piece, and the top end of the middle connecting piece is screw-mounted with the upper fitting; The lower connecting member comprises a lower cylinder (1) located at the lower side, an upper cylinder (2) is mounted on the top of the lower cylinder (1), an external thread is provided on the outer ring surface of the lower cylinder (1), an inner channel (3) passing through the lower cylinder (1) is provided between the lower cylinder (1) and the upper cylinder (2), a cylindrical through groove (4) is provided on the upper cylinder (2), the through groove (4) is connected to the inner channel (3), and an inner thread is provided on the inner ring surface of the through groove (4); The middle connecting member comprises a lower column (5), an outer ring surface of the lower column (5) is provided with an external thread, the lower column (5) is inserted into the through groove (4) and is spirally connected to the upper cylinder (2) through an internal thread, a washer (6) is integrally formed on the outer ring surface of the upper top of the lower column (5), an upper column (7) is installed on the upper side of the lower column (5), an outer ring surface of the upper column (7) is provided with an external thread, an explosive nozzle (8) is provided in the upper column (7), and a cavity (9) is provided in the lower column (5), the cavity (9) is cylindrical, the top of the cavity (9) is hemispherical, and the cavity (9) is connected to the explosive nozzle (8).

2. A high pressure nozzle for paste explosive according to claim 1, characterized in that The upper accessory is cylindrical in shape, the top of the upper accessory is hemispherical or bullet-shaped, a circular hole (10) is provided at the bottom of the upper accessory, an internal thread is provided on the inner annular surface of the circular hole (10), and the upper accessory is spirally connected to the upper cylinder (7).

3. A high pressure nozzle for paste explosive according to claim 1, characterized in that The upper accessory comprises a lower ring (11), an inner ring surface of which is provided with an internal thread, the lower ring (11) is spirally connected to the upper cylinder (7), the upper end of the lower ring (11) is provided with two pairs of columns (12) at equal distances, the two pairs of columns (12) are integrally connected with an upper ring (13), and a groove (16) is provided on the upper surface of the lower ring (11).

4. A high pressure nozzle for paste explosive according to claim 1, characterized in that A sphere (14) is installed on the inner upper side of the cavity (9), the interior of the sphere (14) is hollow, and the outer wall of the sphere (14) is provided with a plurality of circular holes (10) connected to the hollow interior.

5. A high pressure nozzle for paste explosive according to claim 1, characterized in that The upper cylinder (2), the washer (6) and the front and rear sides of the upper accessory are all ground with anti-skid grooves (15), and the anti-skid grooves (15) on the front and rear sides of the upper cylinder (2), the washer (6) and the upper accessory are aligned in a straight line.

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