Blast hole charging device for rock blasting

Abstract

The utility model relates to the technical field of rock blasting, in particular to a blasthole charging device for rock blasting, which comprises a funnel and a fixing component, the fixing component is arranged at the straight cylinder end of the funnel, and the fixing component can further comprise a mounting frame, a guide block, a fixing block, a connecting rod, a fixing ring and a threaded cylinder. The threaded cylinder is rotated and moves along threads of the straight cylinder end of the funnel, the fixing ring is limited by the connecting rods on the two sides, the threaded cylinder rotates along the fixing ring and drives the fixing ring to move, the fixing ring can drive the connecting rods on the two sides to rotate, and the connecting rods drive the guide blocks to move along the guide grooves in the rotating process of the fixing ring. And meanwhile, the guide blocks on the two sides drive the corresponding fixing blocks to move towards the inner wall of the blast hole, so that the fixing blocks on the two sides abut against the inner wall of the blast hole, the funnel is fixed, an original fixing mode is replaced with the mode, and the problem that the stability is poor when the funnel is fixed due to long-time use is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rock blasting technical field, concretely is a kind of blasting hole charging device for rock blasting. BACKGROUND

[0002] In the rock blasting construction process, the size of blast hole and the type of explosive are determined according to geological conditions, section size, support method, construction cost and construction equipment. After the blast hole is opened, the explosive is loaded into the blast hole. In order to avoid waste of explosive, the explosive needs to be poured into the blast hole. However, for small-diameter blast holes, if non-wound multi-hole granular ammonium oil explosive is used for filling, the explosive is easy to scatter around the blast hole, causing waste of explosive. Especially for small-diameter blast holes drilled on inclined surfaces, the explosive scattering phenomenon is more serious.

[0003] For example, the blasting hole charging device for rock blasting disclosed in the authorized announcement No. CN219083922U uses the spring in the compression guide cylinder to tightly press the telescopic rod against the inner wall of the blasting hole, so that the straight cylinder segment is firmly fixed in the blast hole, effectively preventing the explosive from spilling out of the blast hole during charging, saving the explosive. However, in the blasting hole charging device in the above-mentioned document, the spring force after the elastic deformation of the spring between the funnel for charging and the inner wall of the blasting hole acts on the telescopic rod to fix the funnel. Due to the long-term use of the spring, the spring force is easily weakened, reducing the force between the telescopic rod and the blasting hole, which easily leads to low stability of the funnel during fixing and tilting of the funnel. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of poor stability of the funnel during fixing due to long-term use, and provides a blasting hole charging device for rock blasting.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A blasting hole charging device for rock blasting is designed, which includes a funnel and a fixing assembly. The fixing assembly is arranged at the straight cylinder end of the funnel. The fixing assembly can further include a mounting bracket, a guide block, a fixing block, a connecting rod, a fixing ring and a threaded cylinder.

[0007] The two sides of the mounting bracket are respectively provided with guide blocks. One side of the guide block is rotationally connected with the connecting rod. The extension ends of the connecting rods on both sides are hingedly connected with the fixing ring. The inner wall of the fixing ring is rotationally connected with the threaded cylinder. The other end of the guide block is fixedly connected with the fixing block.

[0008] Preferably, one side of the straight cylinder end of the funnel is provided with threads. The threads of the straight cylinder end of the funnel are threadedly connected with the threaded cylinder.

[0009] Preferably, guide grooves are provided on both sides of the mounting frame, and the openings on both sides of the guide grooves penetrate the mounting frame;

[0010] The middle section of the guide block can match the guide groove, and the two sides of the guide block are respectively matched with the opening positions of the guide groove.

[0011] Preferably, a striking assembly is provided on one side of the outer wall of the fixing ring, the striking assembly including a support rod, a slide rod, a spring and a striking ball;

[0012] The end of the connecting rod is fixedly connected to the fixing ring, the middle of the support rod is provided with a sliding rod, the end of the sliding rod is fixedly connected to the striking ball, and the two ends of the spring are fixedly connected to the support rod and the sliding rod respectively.

[0013] Preferably, the end of the striking ball furthest from the fixed slide bar is abutted against the fixed ring.

[0014] Preferably, a sliding hole is provided on one side of the support rod adjacent to the slide rod, the inner diameter of the sliding hole being the same as the outer diameter of the slide rod, and the sliding hole being able to match the slide rod.

[0015] The present invention provides a blasting hole charging device for rock blasting, which has the following advantages: When the threaded cylinder is rotated, it moves along the thread at the straight end of the funnel. The fixing ring is restricted by the connecting rods on both sides. Simultaneously, the threaded cylinder rotates along the fixing ring, causing the fixing ring to move. The fixing ring can then drive the connecting rods on both sides to rotate. During this rotation, the connecting rods move the guide blocks along the guide groove. At the same time, the guide blocks on both sides drive the corresponding fixing blocks to move towards the inner wall of the blasting hole, causing the fixing blocks on both sides to abut against the inner wall of the blasting hole, thereby fixing the funnel. This method replaces the original fixing method, avoiding the problem of poor stability when fixing the funnel after prolonged use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the structure of this utility model;

[0018] Figure 3 This is a side view of the structure of this utility model.

[0019] In the diagram: 1. Funnel; 2. Fixing component; 201. Mounting bracket; 2011. Guide groove; 202. Guide block; 203. Fixing block; 204. Connecting rod; 205. Fixing ring; 206. Threaded cylinder; 3. Striking component; 301. Support rod; 3011. Sliding hole; 302. Sliding rod; 303. Spring; 304. Striking ball. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] This embodiment presents a blasting hole charging device for rock blasting, such as... Figure 1 , Figure 2 and Figure 3 As shown, it includes a funnel 1 and a fixing component 2. The fixing component 2 is located at the straight end of the funnel 1. The fixing component 2 may also include a mounting bracket 201, a guide block 202, a fixing block 203, a connecting rod 204, a fixing ring 205, and a threaded cylinder 206.

[0022] Guide blocks 202 are provided on both sides of the mounting bracket 201. One side of the guide block 202 is rotatably connected to the connecting rod 204. The extension ends of the connecting rods 204 on both sides are hinged to the fixing ring 205. The inner wall of the fixing ring 205 is rotatably connected to the threaded cylinder 206. The other end of the guide block 202 is fixedly connected to the fixing block 203.

[0023] A thread is provided on one side of the straight cylindrical end of the funnel 1. The thread of the straight cylindrical end of the funnel 1 is threadedly connected to the threaded cylinder 206. The threaded cylinder 206 moves along the thread of the straight cylindrical end of the funnel 1. The fixing ring 205 is restricted by the connecting rods 204 on both sides. While the threaded cylinder 206 rotates along the fixing ring 205, it drives the fixing ring 205 to move. The fixing ring 205 can drive the connecting rods 204 on both sides to rotate. During the rotation of the connecting rods 204 along the fixing ring 205, it drives the guide block 202 to move along the guide groove 2011. At the same time, the guide blocks 202 on both sides drive the corresponding fixing blocks 203 to move. The mounting frame 201 is provided with guide grooves 2011 on both sides. The opening positions of the guide grooves 2011 on both sides penetrate the mounting frame 201. The middle section of the guide block 202 can match the guide groove 2011, and the opening positions of the guide block 202 on both sides match the opening positions of the guide groove 2011.

[0024] A striking component 3 is provided on one side of the outer wall of the fixed ring 205. The striking component 3 includes a support rod 301, a sliding rod 302, a spring 303, and a striking ball 304. The end of the connecting rod 204 is fixedly connected to the fixed ring 205. The sliding rod 302 is provided in the middle of the support rod 301. A person can pull the sliding rod 302 to move along the sliding hole of the support rod 301. The sliding rod 302 drives the striking ball 304 to move and simultaneously drives the spring 303 to stretch. After the sliding rod 302 is released, the elastic force of the spring 303 drives the striking ball 304 to strike the fixed ring 205, causing vibration. The gunpowder inside the funnel 1 is transferred to the funnel 1, causing it to move around and preventing it from accumulating and clogging. The end of the slide rod 302 is fixedly connected to the striking ball 304. The two ends of the spring 303 are fixedly connected to the support rod 301 and the slide rod 302 respectively. The end of the striking ball 304 away from the fixed slide rod 302 is pressed against the fixing ring 205. A sliding hole 3011 is provided on the side of the support rod 301 adjacent to the slide rod 302. The inner diameter of the sliding hole 3011 is the same as the outer diameter of the slide rod 302, and the sliding hole 3011 can match the slide rod 302.

[0025] Specifically, before loading explosives into the blasting hole of the rock, the straight end of the funnel 1 and the fixing block are inserted into the blasting hole of the rock. Then, the personnel rotate the threaded cylinder 206. The threaded cylinder 206 moves along the thread of the straight end of the funnel 1. The fixing ring 205 is restricted by the connecting rods 204 on both sides. While the threaded cylinder 206 rotates along the fixing ring 205, it drives the fixing ring 205 to move. The fixing ring 205 can drive the connecting rods 204 on both sides to rotate. During the rotation of the connecting rods 204 along the fixing ring 205, the connecting rods 204 drive the guide block 202 to move along the guide groove 2011. At the same time, the guide blocks 202 on both sides drive the corresponding fixing blocks 203 to move towards the inner wall of the blasting hole, so that the fixing blocks on both sides abut against the inner wall of the blasting hole, thereby fixing the funnel. This method avoids the problem of reduced stability of the funnel during long-term use.

[0026] When loading the explosive, the operator can pull the slide bar 302 to move along the sliding hole of the support rod 301. The slide bar 302 moves the striking ball 304 and stretches the spring 303. After releasing the slide bar 302, the elasticity of the spring 303 causes the striking ball 304 to strike the fixed ring 205. The vibration is transmitted to the funnel 1, causing the explosive inside the funnel 1 to move around, thus preventing the explosive inside the funnel 1 from accumulating and blocking.

[0027] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A blasting hole charging device for rock blasting, characterized in that: It includes a funnel and a fixing assembly, the fixing assembly being disposed at the straight cylindrical end of the funnel, wherein the fixing assembly may further include a mounting bracket, a guide block, a fixing block, a connecting rod, a fixing ring, and a threaded cylinder; Guide blocks are provided on both sides of the mounting bracket. One side of the guide block is rotatably connected to the connecting rod. The extension ends of the connecting rods on both sides are hinged to the fixing ring. The inner wall of the fixing ring is rotatably connected to the threaded cylinder. The other end of the guide block is fixedly connected to the fixing block.

2. The explosive charging device for rock blasting according to claim 1, characterized in that: The funnel has a thread on one side of its straight cylindrical end, and the thread at the straight cylindrical end of the funnel is threadedly connected to the threaded cylinder.

3. The explosive charging device for rock blasting according to claim 1, characterized in that: The mounting bracket is provided with guide grooves on both sides, and the openings on both sides of the guide grooves penetrate the mounting bracket. The middle section of the guide block can match the guide groove, and the two sides of the guide block are respectively matched with the opening positions of the guide groove.

4. A blasting hole charging device for rock blasting according to claim 1, characterized in that: A striking assembly is provided on one side of the outer wall of the fixed ring. The striking assembly includes a support rod, a slide rod, a spring, and a striking ball. The end of the connecting rod is fixedly connected to the fixing ring, the middle of the support rod is provided with a sliding rod, the end of the sliding rod is fixedly connected to the striking ball, and the two ends of the spring are fixedly connected to the support rod and the sliding rod respectively.

5. A blasting hole charging device for rock blasting according to claim 4, characterized in that: The end of the striking ball furthest from the fixed slide bar is pressed against the fixed ring.

6. A blasting hole charging device for rock blasting according to claim 4, characterized in that: The support rod has a sliding hole on one side adjacent to the slide rod. The inner diameter of the sliding hole is the same as the outer diameter of the slide rod, and the sliding hole can match the slide rod.

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