A smooth-surface blasting charge device

Abstract

This utility model relates to the field of smooth blasting technology, and more particularly to a smooth blasting charging device, comprising a support frame, hinge seats symmetrically mounted on both sides of the support frame, a connecting rod rotatably connected to the hinge seats via a rotating shaft, a rubber suction cup mounted at the end of the connecting rod, a threaded rod threadedly connected to the central threaded hole of the support frame, a ball head seat mounted at the end of the threaded rod, a ball head rod rotatably connected to the ball head seat, a fixing component fixedly connected to the end of the ball head rod, a cartridge case clamped on the fixing component, a buffer pad mounted at the end of the cartridge case, and an adhesive layer mounted on the outer side of the buffer pad. This utility model uses the rubber suction cups on both sides of the support frame to adhere to the tunnel wall, thereby fixing the support frame in place. Then, rotating the threaded rod causes it to rotate along the central threaded hole of the support frame to charge the explosive into the blast hole. This miniaturizes the charging device, making it easier to transport and set up, and can adapt to charging operations in blast holes at different angles, thus improving the applicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of smooth blasting technology, and in particular to a smooth blasting charging device. Background Technology

[0002] For example, Chinese Patent No. CN222993601U discloses a charging device for tunnel smooth blasting. The explosive is placed on a slide as a preparatory material to be filled in a storage cylinder. When the storage cylinder is horizontally aligned with the slide, the first electric cylinder drives the connecting rod to push the pusher into the storage cylinder for containment. When the storage cylinder is horizontally aligned with the pusher, the storage cylinder aligns with the smooth blasting hole. The second electric cylinder drives the pusher to extend into the inner cavity of the storage cylinder, loading the explosive contained in the storage cylinder into the smooth blasting hole.

[0003] However, the above-mentioned charging device still has certain defects: First, the device is large in size and complex in structure, while the tunnel construction space is usually narrow, making it difficult to transport and set up. It cannot be flexibly adapted to tunnels with different cross-sectional dimensions, thus limiting its practicality. Second, the storage cylinder and pusher of the device can only achieve horizontal alignment, which is only suitable for horizontal or slightly inclined blast holes such as sidewalls. For the key arch blast holes (mostly inclined or vertically upward) in tunnel smooth blasting, the angle cannot be adjusted, making it impossible to charge explosives, thus narrowing its applicability. Third, the rigid pushing of the electric cylinder does not take into account the actual working conditions of the blast hole. The inner wall of the blast hole is prone to unevenness, and the friction between the explosive and the hole wall is large during pushing, which can easily cause the explosive cartridge to break, leading to explosive leakage that affects detonation or static electricity and other safety hazards. It is also prone to jamming or deviation, destroying the precise charging structure, resulting in over-excavation and uneven smooth blasting surfaces. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a smooth-surface blasting charging device, which solves the technical problems of existing charging devices being large in size, inconvenient to transport and set up, only able to be aligned horizontally, having a narrow range of applications, and potentially causing friction damage between the explosive charge and the inner wall of the borehole due to the unevenness of the inner wall of the borehole when pushed in a straight line.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a smooth-surface blasting charging device, including a bracket, hinge seats symmetrically installed on both sides of the bracket, a connecting rod rotatably connected to the hinge seat via a rotating shaft, a rubber suction cup installed at the end of the connecting rod, a vacuum component for enhancing adsorption stability provided on the connecting rod, a threaded rod threadedly connected to the central threaded hole of the bracket, a ball head seat installed at the end of the threaded rod, a ball head rod rotatably connected to the ball head seat, a fixing component fixedly connected to the end of the ball head rod, a cartridge being clamped on the fixing component, a buffer pad installed at the end of the cartridge, and an adhesive layer installed on the outside of the buffer pad.

[0006] A further improvement is that a turntable is installed at the front end of the threaded rod, a stable bracket is installed on the bracket, and the threaded rod is threaded into the threaded hole on the stable bracket.

[0007] A further improvement is that the rubber suction cup adopts an inner and outer double-layer lip structure, and the rubber suction cup is made of high-elasticity nitrile rubber material.

[0008] A further improvement is that the vacuum assembly includes a miniature vacuum pump mounted on a connecting rod, and the interface of the miniature vacuum pump is fitted with a connecting tube extending into a rubber suction cup.

[0009] A further improvement is that the fixing component includes a mounting base installed at the end of the ball head, a bidirectional electric telescopic rod is installed inside the mounting base, and the free ends of the bidirectional electric telescopic rod pass through the mounting base and are fitted with clamping blocks, with pressure sensors installed on the inner wall of the clamping blocks.

[0010] A further improvement is that a battery is installed on one side of the bracket, and a controller is installed on the other side. The vacuum assembly and the fixing assembly are both electrically connected to the controller.

[0011] By employing the above technical solution, this utility model provides a smooth-surface blasting charge device, which has at least the following beneficial effects: 1. This utility model uses rubber suction cups on both sides of the support to adhere to the tunnel wall, thereby fixing the support. Then, the threaded rod is rotated to rotate along the threaded hole in the center of the support and load the explosive into the blast hole. This miniaturizes the explosive loading device, making it easier to transport and set up. It can also adapt to explosive loading work in blast holes at different angles, thus improving the applicability of the device.

[0012] 2. In this utility model, when the propellant is loaded, the cartridge is subjected to the reaction force of the inner wall of the borehole, which causes the ball head rod to rotate slightly within the ball head seat for adjustment. This avoids hard friction between the cartridge and the inner wall of the borehole, which could damage the cartridge and lead to explosive leakage that could affect detonation or static electricity.

[0013] 3. This utility model uses a bidirectional electric telescopic rod to move the clamping blocks on its two free ends relative to each other, thereby clamping and fixing the cartridge on both sides. Pressure sensors are installed on the inner wall of the clamping blocks, so the pressure applied to the surface of the cartridge is displayed on the controller in real time, thus avoiding over-clamping and damage to the cartridge. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0015] In the attached diagram: Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the flip-over rear view structure of this utility model; Figure 3 This is an enlarged schematic diagram of the bracket and its partial structure of the present invention; Figure 4 This is a partially enlarged schematic diagram of the threaded rod and its structure according to this utility model; Figure 5 This is an enlarged schematic diagram of the fixed component of this utility model.

[0016] In the diagram: 1. Bracket; 2. Hinge seat; 3. Connecting rod; 4. Rubber suction cup; 5. Vacuum assembly; 51. Miniature vacuum pump; 52. Connecting pipe; 6. Threaded rod; 61. Turntable; 62. Stabilizing bracket; 7. Ball head seat; 8. Ball head club; 9. Fixing assembly; 91. Mounting base; 92. Bidirectional electric telescopic rod; 93. Clamping block; 94. Pressure sensor; 10. Drug cartridge; 11. Buffer pad; 12. Adhesive layer; 13. Storage battery; 14. Controller. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1 Existing charging devices are bulky, inconvenient to transport and set up, and can only be aligned horizontally, limiting their applicability. Furthermore, the unevenness of the borehole's inner wall means that a straight, rigid push can cause friction damage between the propellant and the borehole wall. This embodiment provides a smooth-surface blasting charging device, miniaturizing the charging device for easier transport and setup. It can also adapt to charging boreholes at different angles, increasing its applicability and enabling charging of boreholes with uneven inner walls, thus preventing friction damage between the propellant and the borehole wall. Please refer to... Figures 1-5The smooth-surface blasting charging device includes a support 1, with hinge seats 2 symmetrically installed on both sides of the support 1. A connecting rod 3 is rotatably connected to the hinge seat 2 via a rotating shaft. A rubber suction cup 4 is installed at the end of the connecting rod 3. A vacuum component 5 to enhance adsorption stability is installed on the connecting rod 3. A threaded rod 6 is threaded into the central threaded hole of the support 1. A ball head seat 7 is installed at the end of the threaded rod 6. A ball head rod 8 is rotatably connected to the ball head seat 7. A fixing component 9 is fixed to the end of the ball head rod 8. A cartridge 10 is held in the fixing component 9. A buffer pad 11 is installed at the end of the cartridge 10. An adhesive layer 12 is installed on the outside of the buffer pad 11. The rubber suction cups 4 on both sides of the support 1 are adjusted according to the required borehole angle. The cartridge 10 is then adsorbed onto the tunnel wall, thus fixing the support 1. The cartridge 10 is then clamped and fixed by the fixing component 9. The threaded rod 6 is then rotated to rotate along the threaded hole in the center of the support 1 and load the explosive into the borehole. Due to the unevenness of the borehole wall, the cartridge 10 is subjected to the reaction force of the borehole wall, which causes the ball head rod 8 to rotate slightly within the ball head seat 7 for adjustment. This prevents the cartridge 10 from hard friction with the borehole wall, which could damage the cartridge 10 and lead to explosive leakage affecting the detonation or static electricity generation. When the cartridge 10 is pushed to the bottom of the borehole, the adhesive layer 12 contacts the bottom wall of the borehole and adheres the cartridge 10 to the bottom wall of the borehole, preventing it from slipping off.

[0019] To improve the stability of the threaded rod 6 in loading the drug, a turntable 61 is installed at the front end of the threaded rod 6 in the device, and a stabilizing bracket 62 is installed on the bracket 1. The threaded rod 6 is threaded into the threaded hole on the stabilizing bracket 62. Rotating the turntable 61 can drive the threaded rod 6 to rotate forward, and the stabilizing bracket 62 provides a support point, thereby improving the stability of the threaded rod 6 in delivering the drug.

[0020] Specifically, the rubber suction cup 4 adopts a double-layer lip structure and is made of high-elasticity nitrile rubber. The rubber suction cup 4 made of high-elasticity nitrile rubber is 30% more elastic than ordinary rubber, thus ensuring that the rubber suction cup 4 can fit into the tiny pits of the rock wall. It also adopts a double-layer lip structure, that is, the outer large lip covers the edge and the inner small lip focuses on the center, which can better embed into the tiny cracks of the rock wall and improve the sealing performance.

[0021] To ensure the stability of clamping the cartridge 10, the device is also equipped with a fixing component 9. The fixing component 9 includes a mounting base 91 installed at the end of the ball joint 8. A bidirectional electric telescopic rod 92 is installed inside the mounting base 91, and the free ends of the bidirectional electric telescopic rod 92 pass through the mounting base 91 and are equipped with clamping blocks 93. Pressure sensors 94 are installed on the inner wall of the clamping blocks 93. The bidirectional electric telescopic rod 92 is activated by the controller 14, which drives the clamping blocks 93 on its two free ends to move relative to each other, thereby clamping and fixing the cartridge 10 on both sides. Since the pressure sensors 94 are installed on the inner wall of the clamping blocks 93, the pressure applied to the surface of the cartridge 10 is displayed on the controller 14 in real time, thereby avoiding over-clamping and damage to the cartridge 10.

[0022] Furthermore, a storage battery 13 is installed on one side of the bracket 1, and a controller 14 is installed on the other side. The vacuum assembly 5 and the fixing assembly 9 are both electrically connected to the controller 14. The storage battery 13 supplies power to the device and works with the controller 14 to control the normal operation of the device.

[0023] Example 2 Because the rock face is uneven, to prevent the rubber suction cup 4 from falling off, therefore, based on Example 1, as follows: Figures 1-5 As shown, the device is also equipped with a vacuum component 5, which includes a miniature vacuum pump 51 mounted on the connecting rod 3. The interface of the miniature vacuum pump 51 is equipped with a connecting pipe 52 extending into the rubber suction cup 4. When the miniature vacuum pump 51 is started, the rubber suction cup 4 is evacuated through the connecting pipe 52, thereby ensuring that the rubber suction cup 4 can be firmly attached to the rock wall and preventing the rubber suction cup 4 from falling off and affecting the loading of explosives into the blast hole.

[0024] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smooth-surface blasting charging device, comprising a support (1), characterized in that: The bracket (1) is symmetrically equipped with hinge seats (2) on both sides. A connecting rod (3) is rotatably connected to the hinge seat (2) through a rotating shaft. A rubber suction cup (4) is installed at the end of the connecting rod (3). A vacuum component (5) to enhance adsorption stability is provided on the connecting rod (3). A threaded rod (6) is threadedly connected to the central threaded hole of the bracket (1). A ball head seat (7) is installed at the end of the threaded rod (6). A ball head rod (8) is rotatably connected to the ball head seat (7). A fixing component (9) is fixedly connected to the end of the ball head rod (8). A cartridge (10) is clamped on the fixing component (9). A buffer pad (11) is installed at the end of the cartridge (10). An adhesive layer (12) is installed on the outside of the buffer pad (11).

2. The smooth-surface blasting charging device according to claim 1, characterized in that: The threaded rod (6) has a turntable (61) installed at its front end, and a stabilizing bracket (62) is installed on the bracket (1). The threaded rod (6) is threaded into the threaded hole on the stabilizing bracket (62).

3. The smooth blasting charging device according to claim 1, characterized in that: The rubber suction cup (4) adopts an inner and outer double-layer lip structure and is made of high-elasticity nitrile rubber material.

4. The smooth-surface blasting charging device according to claim 1, characterized in that: The vacuum assembly (5) includes a miniature vacuum pump (51) mounted on a connecting rod (3), and the interface of the miniature vacuum pump (51) is fitted with a connecting tube (52) extending into a rubber suction cup (4).

5. A smooth-surface blasting charging device according to claim 1, characterized in that: The fixing component (9) includes a mounting base (91) installed at the end of the ball head (8), a bidirectional electric telescopic rod (92) is installed in the mounting base (91), and the free ends of the bidirectional electric telescopic rod (92) pass through the mounting base (91) and are equipped with clamping blocks (93), and pressure sensors (94) are installed on the inner wall of the clamping blocks (93).

6. A smooth-surface blasting charging device according to claim 1, characterized in that: A battery (13) is installed on one side of the bracket (1), and a controller (14) is installed on the other side. The vacuum assembly (5) and the fixing assembly (9) are both electrically connected to the controller (14).

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