Emulsion matrix on-site mixed explosive smooth blasting charging device

Abstract

The utility model discloses an emulsion matrix on-site mixed explosive smooth blasting charging device, which belongs to the technical field of charging devices, and comprises a central inner pipe, the central inner pipe is fixed in the middle of an external expansion pipe, the middle of the central inner pipe is a charging channel, and the lower end of the interior of the external expansion pipe is fixedly connected with a connecting nut; a regulation and control pipe is inserted into the center inner pipe, positioning blocks are fixedly connected to the front side and the rear side of the upper end of the regulation and control pipe, the positioning blocks are inserted into containing grooves, the containing grooves are formed in the center inner pipe, and the positioning blocks and the center inner pipe are mutually fixed through locking bolts. According to the emulsion matrix on-site mixed explosive smooth blasting charging device, the inner diameter of the charging cavity of the charging device can be adjusted according to the actual charging amount, meanwhile, after the charging device is placed into a blast hole, the stability of the charging device can be guaranteed, and the center of the charging device is aligned with the center of the blast hole.

Description

Technical Field

[0001] The utility model relates to the technical field of charge devices, in particular to a latex matrix on-site mixed explosive smooth blasting charge device. Background Art

[0002] In pre-splitting blasting and smooth blasting, it is usually necessary to place a charging device into the blasthole and fill the explosives into the charging device through a mixing truck, and use the gas pressure generated after the blasting to cause through cracks in the rock mass.

[0003] For example, a blasting gun bore radial uncoupled charge connector with publication number CN206459574U comprises a top baffle, an inner liner, an outer shell and a bottom baffle. The inner liner is located inside the outer shell, and the inner liner and the outer shell are connected by the top baffle and the bottom baffle to form an air separation cavity. The top baffle, the bottom baffle and the through cavity of the inner liner are connected to form a charge cavity. The central opening of the top baffle is a charge port, and its caliber is equal to that of the charge cavity. The central opening of the bottom baffle is a bottom hole, and its caliber is smaller than that of the charge cavity.

[0004] The above-mentioned prior art has the following technical problems: the existing charge loader charges the inside of the charge chamber when in use, but the inner diameter of the charge chamber is fixed, which is not convenient for adjusting the diameter according to the actual required charge amount. At the same time, when the charge device is placed inside the blast hole, it is not convenient to ensure that the center of the charge device is aligned with the center of the blast hole. When the center of the charge device differs greatly from the center of the blast hole, it is easy to affect the overall blasting quality.

[0005] Therefore, we propose a latex matrix on-site mixed explosive smooth blasting charging device to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide a latex matrix on-site mixed explosive smooth blasting charging device to solve the problem raised by the above-mentioned background technology that the existing charge devices on the market charge charges into the interior of the charge cavity when in use, but the inner diameter of the charge cavity is fixed and the diameter cannot be adjusted according to the actual required charge amount, and at the same time, when the charge device is placed inside the blast hole, it is not convenient to ensure that the center of the charge device is aligned with the center of the blast hole. When the difference between the center of the charge device and the center of the blast hole is large, it is easy to affect the overall blasting quality.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a latex matrix on-site mixed explosive smooth blasting charging device, comprising a central inner tube, the central inner tube is fixed to the middle of an external expansion tube, and the middle of the central inner tube is a charging channel, and the inner lower end of the external expansion tube is fixedly connected with a connecting nut;

[0008] Also includes:

[0009] A regulating tube is inserted into the interior of the central inner tube, and positioning blocks are fixedly connected to the front and rear sides of the upper end of the regulating tube, the positioning blocks are inserted into the interior of the receiving groove, and the receiving groove is provided on the central inner tube, and the positioning blocks are fixed to the central inner tube by locking bolts;

[0010] A limiting ring is fixedly connected to the external expansion tube, and a positioning centering mechanism is installed on the outer side of the limiting ring. The positioning centering mechanism is used to contact the inner wall of the blast hole to ensure that the center of the central inner tube is aligned with the center of the blast hole.

[0011] Preferably, the outer wall of the upper end of the central inner tube is provided with threads, and the threads on the central inner tube match the threads on the connecting nut at the lower end of the inner part of the external expansion tube.

[0012] By adopting the above technical solution, the threads on the upper end of the central inner tube match the threads on the connecting nut, so that the central inner tube can be screwed into the connecting nut at the lower end of the inner part of the external expansion tube.

[0013] Preferably, the outer wall of the positioning block on the regulating tube and the interior of the accommodating groove on the central inner tube fit each other, and the positioning block is symmetrically arranged with respect to the transverse center axis of the regulating tube.

[0014] By adopting the above technical solution, the outer wall of the positioning block on the control tube and the inner wall of the receiving groove fit each other, thereby ensuring the stability of the control tube when it is installed on the central inner tube.

[0015] Preferably, a plurality of positioning and centering mechanisms are evenly distributed at equal angles in the circumferential direction of the limiting ring, and the positioning and centering mechanisms are threadedly connected to the side of the limiting ring.

[0016] By adopting the above technical solution, through the threaded connection between the positioning and centering mechanism and the limiting ring, the positioning and centering mechanism can be easily removed from the limiting ring, thereby reducing the occupied area when moving the central inner tube and the external expansion tube.

[0017] Preferably, the positioning and centering mechanism includes a clamping column, and a movable column is inserted into the interior of the clamping column, one end of the movable column extending out of the interior of the clamping column is installed with a guide ball, and the end of the movable column away from the guide ball is connected to each other through a return spring and the interior of the clamping column.

[0018] By adopting the above technical solution, the reset spring can be provided to enable the clamping column to reset and rebound after moving in the movable column.

[0019] Preferably, the guide ball is rotatably connected to the end of the movable column, and the guide ball is configured as a spherical structure.

[0020] By adopting the above technical solution, the friction between the ball and the inner wall of the blast hole can be reduced by guiding the rotation of the ball at the end of the movable column.

[0021] Preferably, the outer wall of the end of the movable column and the inner wall of the clamping column are in contact with each other, and the movable column forms an elastic telescopic structure through a return spring and the clamping column.

[0022] By adopting the above technical solution, the outer wall of the movable column and the inner wall of the clamping column fit together, which can ensure the stability of the movable column when moving on the clamping column.

[0023] Compared with the prior art, the utility model has the following beneficial effects: the latex matrix on-site mixed explosive smooth blasting charging device can adjust the inner diameter of the charging cavity of the charging device according to the actual charging amount, and at the same time, after the charging device is placed inside the blast hole, the stability of the charging device can be ensured, so that the center of the charging device is aligned with the center of the blast hole;

[0024] 1. A central inner tube is provided. By screwing a central inner tube into the connecting nut at the lower end of the outer expansion tube, it is convenient to complete the splicing and combination between two adjacent central inner tubes and the outer expansion tube. At the same time, the charging cavity in the middle of the central inner tube is convenient for charging the inside;

[0025] 2. A regulating tube is provided. When normal charging is performed, the inner diameter of the charging cavity is the inner diameter of the regulating tube. When the charge amount needs to be increased, the locking bolt is turned to release the fixation between the regulating tube and the central inner tube, and then the regulating tube is taken out from the central inner tube. At this time, the inner diameter of the charging cavity is the inner diameter of the central inner tube, so as to achieve the purpose of changing the inner diameter of the charging cavity according to actual needs;

[0026] 3. A clamping column is provided, and through the threaded connection between the clamping column and the limiting ring, the central inner tube and the external expanded tube can be rotated and separated when they are stored or transported, avoiding the increase of the overall occupied area due to the connection positioning and centering mechanism on the limiting ring;

[0027] 4. A guide ball is provided. When the central inner tube and the external expansion tube are placed into the blasthole, the guide ball rolls along the inner wall of the blasthole. The central inner tube and the external expansion tube are supported by the movable column, the clamping column and the guide ball, so that the center of the central inner tube is aligned with the center of the blasthole, and the stability of the central inner tube and the external expansion tube is ensured;

[0028] 5. A movable column is provided. Since the movable column can slide on the clamping column, when used in the face of blast holes with different diameters, adaptive adjustment can be made by moving the movable column inside the clamping column. At the same time, by setting a reset spring, the movable column can be reset and rebound after moving inside the clamping column. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the central inner tube and the external expansion tube structure of the utility model;

[0031] Figure 3 This is a bottom view of the structure of the external expansion pipe and the connecting nut of the utility model;

[0032] Figure 4 This is a schematic diagram of the cross-sectional structure of the central inner tube and the control tube of the utility model;

[0033] Figure 5 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0034] Figure 6 This is a schematic diagram of the central inner tube and the control decomposition structure of the utility model;

[0035] Figure 7 This is a schematic diagram of the structure of the movable column and the return spring of the utility model.

[0036] In the figure: 1. central inner tube; 2. external expansion tube; 3. connecting nut; 4. regulating tube; 5. positioning block; 6. receiving groove; 7. locking bolt; 8. limiting ring; 9. positioning and centering mechanism; 901. clamping column; 902. movable column; 903. guide ball; 904. return spring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Example 1: Please refer to Figure 1-Figure 4 In the prior art, when blasting, more explosive packs and detonators are usually needed, which is not convenient for the purpose of continuously charging the inside of the blasthole. In order to solve this technical problem, the present embodiment discloses the following technical content: a latex matrix on-site mixed explosive smooth blasting charging device, including a central inner tube 1, the central inner tube 1 is fixed in the middle of an external expansion tube 2, and the middle of the central inner tube 1 is a charging channel, and the lower end of the inner part of the external expansion tube 2 is fixedly connected with a connecting nut 3; the upper end outer wall of the central inner tube 1 is provided with a thread, and the thread on the central inner tube 1 matches the thread on the connecting nut 3 at the lower end of the inner part of the external expansion tube 2.

[0039] When charging is required, the middle parts of the lower ends of the central inner tube 1 and the external expansion tube 2 are aligned with each other, and then the central inner tube 1 is rotated. Since the upper end surface of the central inner tube 1 is provided with threads, when the central inner tube 1 is rotated, it can be screwed into the connecting nut 3 inside the external expansion tube 2, thereby completing the fixed connection between the two adjacent central inner tubes 1 and the external expansion tube 2, reducing the use of detonators, reducing the unit consumption of explosives and construction costs, and also facilitating the adjustment of the height of the charging device according to the actual height of the blast hole, thereby increasing the flexibility of the device when used.

[0040] Embodiment 2: The technical content disclosed in this embodiment is a further improvement made on the basis of the above-mentioned embodiment 1. The existing charge charger charges the charge cavity when in use. However, the inner diameter of the charge cavity is fixed and the diameter cannot be adjusted according to the actual charge amount required. Figure 2-Figure 6 As shown, in order to solve this technical problem, the present embodiment discloses the following technical contents; a regulating tube 4 is inserted into the interior of the central inner tube 1, and positioning blocks 5 are fixedly connected to the front and rear sides of the upper end of the regulating tube 4, the positioning blocks 5 are inserted into the interior of the receiving groove 6, and the receiving groove 6 is opened on the central inner tube 1, and the positioning blocks 5 are fixed to the central inner tube 1 by locking bolts 7; the outer wall of the positioning blocks 5 on the regulating tube 4 and the interior of the receiving groove 6 on the central inner tube 1 fit each other, and the positioning blocks 5 are symmetrically arranged about the transverse center axis of the regulating tube 4.

[0041] When charging, in the initial state, the diameter of the charging chamber is the inner diameter of the regulating tube 4. When the inner diameter of the charging chamber needs to be increased, the locking bolt 7 is turned to release the fixation between the regulating tube 4 and the central inner tube 1, and then the regulating tube 4 is taken out from the interior of the central inner tube 1. At this time, the inner diameter of the charging chamber is the inner diameter of the central inner tube 1, which makes it easier to adjust the inner diameter of the charging chamber according to actual needs. At the same time, the outer wall of the positioning block 5 and the inner wall of the accommodating groove 6 fit each other, thereby ensuring the stability of the positioning block 5 in the accommodating groove 6.

[0042] Embodiment 3: This embodiment is a further improvement made on the basis of the above-mentioned embodiments 1 and 2. When the charge device is placed inside the blast hole, it is not easy to ensure that the center of the charge device is aligned with the center of the blast hole. When the center of the charge device differs greatly from the center of the blast hole, it is easy to affect the overall blasting quality. Figure 1-Figure 4 and Figure 7As shown, this embodiment discloses the following technical contents: a limiting ring 8 is fixedly connected to the external expansion tube 2, and a positioning centering mechanism 9 is installed on the outer side of the limiting ring 8, and the positioning centering mechanism 9 is used to contact the inner wall of the blasthole to ensure that the center of the central inner tube 1 is aligned with the center of the blasthole. A plurality of positioning centering mechanisms 9 are evenly distributed at equal angles in the circumference of the limiting ring 8, and the positioning centering mechanism 9 is threadedly connected to the side of the limiting ring 8. The positioning centering mechanism 9 includes a clamping column 901, and a movable column 902 is inserted into the inside of the clamping column 901, and a guide ball 903 is installed at one end of the movable column 902 extending from the inside of the clamping column 901, and the end of the movable column 902 away from the guide ball 903 is connected to the inside of the clamping column 901 through a reset spring 904. The guide ball 903 is rotatably connected to the end of the movable column 902, and the guide ball 903 is set as a spherical structure. The outer wall of the end of the movable column 902 and the inner wall of the clamping column 901 are in contact with each other, and the movable column 902 forms an elastic telescopic structure through the return spring 904 and the clamping column 901.

[0043] After the central inner tube 1 and the external expansion tube 2 are assembled and placed into the borehole, the guide ball 903 at the end of the movable column 902 rolls along the inner wall of the borehole to reduce the friction between the inner wall of the borehole. At this time, the central inner tube 1 and the external expansion tube 2 are positioned by the movable column 902 and the clamping column 901 so that the center of the central inner tube 1 and the center of the borehole are located on the same vertical line. Since the movable column 902 and the clamping column 901 are slidingly connected, the sliding of the movable column 902 inside the clamping column 901 can be conveniently adapted to the use of boreholes of different diameters. The end of the movable column 902 is threadedly connected to the side of the limiting ring 8, so it is convenient to unscrew the positioning and centering mechanism 9 from the limiting ring 8, thereby reducing the footprint of the central inner tube 1 and the external expansion tube 2 during transportation or storage.

[0044] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A latex matrix on-site mixed explosive smooth blasting charging device, comprising a central inner tube (1), the central inner tube (1) is fixed to the middle of an external expansion tube (2), and the middle of the central inner tube (1) is a charging channel, and the inner lower end of the external expansion tube (2) is fixedly connected with a connecting nut (3); It is characterized in that Also includes: A regulating tube (4) is inserted into the interior of the central inner tube (1), and positioning blocks (5) are fixedly connected to the front and rear sides of the upper end of the regulating tube (4), the positioning blocks (5) are inserted into the interior of the receiving groove (6), and the receiving groove (6) is provided on the central inner tube (1), and the positioning blocks (5) are fixed to the central inner tube (1) by means of locking bolts (7); The external expansion tube (2) is fixedly connected with a limiting ring (8), and a positioning centering mechanism (9) is installed on the outer side of the limiting ring (8). The positioning centering mechanism (9) is used to contact the inner wall of the blast hole to ensure that the center of the central inner tube (1) is aligned with the center of the blast hole.

2. A latex matrix on-site mixed explosive smooth blasting charging device according to claim 1, characterized in that: The upper outer wall of the central inner tube (1) is provided with threads, and the threads on the central inner tube (1) match the threads on the connecting nut (3) at the lower end of the external expansion tube (2).

3. The latex matrix on-site mixed explosive smooth blasting charging device according to claim 1, characterized in that: The outer wall of the positioning block (5) on the regulating tube (4) and the interior of the receiving groove (6) on the central inner tube (1) fit each other, and the positioning block (5) is symmetrically arranged with respect to the transverse center axis of the regulating tube (4).

4. The latex matrix on-site mixed explosive smooth blasting charging device according to claim 1, characterized in that: A plurality of positioning and centering mechanisms (9) are evenly distributed at equal angles in the circumferential direction of the limiting ring (8), and the positioning and centering mechanisms (9) are threadedly connected to the side of the limiting ring (8).

5. The latex matrix on-site mixed explosive smooth blasting charging device according to claim 4, characterized in that: The positioning and centering mechanism (9) comprises a clamping column (901), and a movable column (902) is inserted into the interior of the clamping column (901); one end of the movable column (902) extending out of the interior of the clamping column (901) is installed with a guide ball (903), and one end of the movable column (902) away from the guide ball (903) is connected to the interior of the clamping column (901) via a return spring (904).

6. A latex matrix on-site mixed explosive smooth blasting charging device according to claim 5, characterized in that: The guide ball (903) is rotatably connected to the end of the movable column (902), and the guide ball (903) is configured as a spherical structure.

7. The latex matrix on-site mixed explosive smooth blasting charging device according to claim 5, characterized in that: The outer wall of the end of the movable column (902) and the inner wall of the clamping column (901) fit together, and the movable column (902) forms an elastic telescopic structure through the return spring (904) and the clamping column (901).

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