Medium-length hole blasting spacer capable of preventing gliding

Abstract

The utility model belongs to the technical field of medium-length hole blasting spacers, and particularly relates to a medium-length hole blasting spacer capable of preventing gliding, which comprises a support column, an air bag sleeved outside the support column, a positioning strip fixedly connected to the outer wall of the air bag, a support frame fixedly connected to the bottom end of the support column, and a balancing weight mounted at the bottom end of the support frame. A supporting stay wire penetrates through the inner wall of the supporting column, and an elastic piece fixedly connected with the inner wall of the supporting column is arranged at the bottom end of the supporting stay wire. By arranging supporting plates, supporting stay wires move, elastic pieces are driven to be poked reversely, the elastic pieces move, lifting blocks are driven to vertically slide upwards along the inner wall of a supporting frame, telescopic guide grooves in the outer walls of four sets of lifting plates are driven to slide synchronously, and then telescopic columns are driven to horizontally slide along the inner wall of the supporting frame through connecting columns; the telescopic column slides to drive the supporting plate to be tightly attached to the inner wall of the blast hole, stable fixing of the air bag is achieved, and deviation of the air bag is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of medium-deep hole blasting spacers, specifically a medium-deep hole blasting spacer that can prevent slippage. Background Technology

[0002] In mine blasting, the use of spacers to rationally arrange the explosive loading structure improves blasting effects, reduces the amount of explosive used, and allows for on-site inflation of the gasbag to ensure a tight fit with the inner wall of the borehole. Explosives are then loaded onto the upper part of the spacer, reducing explosive consumption per unit, providing shock absorption and waterproofing, and minimizing the impact on the borehole. This reduces the explosion pressure within the borehole, reduces or even eliminates rock and ore impact and fragmentation caused by coupled loading, expands the fracture zone, and improves the effective utilization rate of explosive blasting energy, thereby reducing explosive consumption per unit unit.

[0003] A search revealed that patent CN217058532U discloses a blasting spacer device, relating to the field of mining blasting technology. It includes a blast hole with a spacer inside. The spacer comprises an air bladder, a fixed tube fixed to the upper end of the air bladder, a fixed plate fixed to the upper end of the fixed tube, a movable abutment rod on the inner side of the fixed plate that abuts against the inner wall of the blast hole, a rotatable hook inside the fixed plate that can disengage from the abutment rod, and a movable push rod inside the fixed tube that can rotate the hook. The push rod moves under the impact of gas, and an inflation device for releasing gas is fixed inside the air bladder. Because blast holes are typically underground and exposed, groundwater and rainwater can enter, often resulting in water accumulation inside the blast hole, making it slippery. Air bladder spacers require the spacer to be placed in the blast hole before releasing or generating gas. Under the pressure of the explosive, the spacer may slide downwards, affecting the blasting effect.

[0004] When using existing medium-deep hole blasting spacers, the air bladder is prone to shifting during inflation, causing it to fail to provide air separation at the intended position in the blast hole. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a deep-hole burst spacer that can prevent slippage and avoid the problem of airbag displacement during inflation.

[0006] In view of this, the present invention provides a medium-deep hole blasting spacer that can prevent slippage, comprising a support column, an air bladder sleeved on the outside of the support column, a positioning strip fixedly connected to the outer wall of the air bladder, a support frame fixedly connected to the bottom end of the support column, a counterweight block installed at the bottom end of the support frame, a support cable penetrating through the inner wall of the support column, a spring piece fixedly connected to the inner wall of the support column at the bottom end of the support cable, a lifting block fixedly connected to the bottom end of the spring piece extending to the inner wall of the support frame, a lifting plate fixedly connected to the outer wall of the lifting block, a telescopic guide groove formed on the outer wall of the lifting plate, a connecting column movably connected within the telescopic guide groove, a telescopic column that slides horizontally with the inner wall of the support frame fixedly connected to one end of the connecting column, and a support plate fixedly connected to one end of the telescopic column.

[0007] Based on the above structure, the support cable moves, causing the spring to move in the opposite direction. This causes the spring to move, which in turn causes the lifting block to slide vertically upward along the inner wall of the support frame. The sliding of the lifting block causes the telescopic guide grooves on the outer walls of the four sets of lifting plates to slide synchronously. The sliding of the telescopic guide grooves causes the telescopic columns to slide horizontally along the inner wall of the support frame through the connecting columns. The sliding of the telescopic columns causes the support plate to fit tightly against the inner wall of the blast hole, thus achieving stable fixation of the airbag and preventing the airbag from shifting.

[0008] Preferably, the central axis of the airbag coincides with the central axis of the support column, and the positioning strips are equidistantly distributed along the outer wall of the airbag. In this embodiment, this facilitates the expansion of the airbag, causing the positioning strips to fit tightly against the inside of the borehole, thereby improving the stability of the airbag positioning.

[0009] Preferably, the counterweight is in the shape of an inverted cone, and the spring is in the shape of a cross. In this embodiment, it is convenient for the operator to place the airbag in the gun hole through the counterweight. Then, the operator pulls the support cable. The movement of the support cable causes the spring to move in the opposite direction, causing the spring to move and drive the lifting block to slide vertically upward along the inner wall of the support frame.

[0010] Preferably, the lifting plate is provided with four sets, and the telescopic guide groove is inclined. In this embodiment, it is convenient for the lifting block to slide and drive the telescopic guide grooves on the outer wall of the four sets of lifting plates to slide synchronously. The sliding of the telescopic guide groove drives the telescopic column to slide horizontally along the inner wall of the support frame through the connecting column, thereby realizing the control operation of the horizontal sliding of the telescopic column.

[0011] Preferably, the support plate is arc-shaped and the outer wall of the support plate is provided with anti-slip texture. In this embodiment, the telescopic column slides to drive the support plate to fit tightly against the inner wall of the blast hole, so as to achieve a stable fixed connection of the airbag and prevent the airbag from shifting.

[0012] Preferably, an inflation cylinder is fixedly connected to the inner wall of the airbag, an inflation port is fixedly connected to the bottom end of the inflation cylinder, a sealing ring is fixedly connected to the top end of the inflation cylinder, an inflation cable passes through the inner wall of the sealing ring, and a sealing post is installed at the bottom end of the inflation cable that is sealed to the inner wall of the inflation port. In this embodiment, the operator pulls the inflation cable to make the inflation cable move in a straight line, causing the sealing post and the inflation port to move away from each other, thereby allowing the high-pressure gas inside the inflation cylinder to inflate the airbag through the inflation port, thereby causing the airbag to expand and causing the positioning strip to fit tightly against the inside of the borehole, improving the stability of the airbag positioning.

[0013] Preferably, the sealing column has a "T" shaped cross-section. In this embodiment, by setting the sealing column with a "T" shaped cross-section, it is beneficial for high-pressure gas to push the sealing column to fit tightly with the inflation port, thus avoiding air leakage from the inflation cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model is equipped with a support plate to support the movement of the pull wire, which drives the spring to move in the opposite direction. This causes the spring to move and drive the lifting block to slide vertically upward along the inner wall of the support frame. This causes the telescopic guide grooves on the outer walls of the four sets of lifting plates to slide synchronously. Then, through the connecting column, the telescopic column is driven to slide horizontally along the inner wall of the support frame. The sliding of the telescopic column causes the support plate to fit tightly against the inner wall of the blast hole, thereby achieving stable fixation of the airbag and preventing the airbag from shifting.

[0016] 2. This utility model is equipped with a sealing column. Pulling the inflation cable causes the inflation cable to move in a straight line, which moves the sealing column away from the inflation port. This allows the high-pressure gas inside the inflation cylinder to inflate the airbag through the inflation port, thereby causing the airbag to expand and causing the positioning strip to fit tightly against the inside of the borehole, thus improving the stability of the airbag positioning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the air cylinder of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the support frame of this utility model.

[0021] In the diagram: 1. Support column; 2. Airbag; 201. Positioning strip; 3. Support frame; 4. Counterweight; 5. Support cable; 6. Spring; 7. Lifting block; 8. Lifting plate; 9. Telescopic guide groove; 10. Connecting column; 11. Telescopic column; 12. Support plate; 13. Inflation cylinder; 14. Inflation port; 15. Sealing ring; 16. Inflation cable; 17. Sealing column. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 - Figure 4 The present invention will be described in further detail below.

[0023] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] like Figure 1-4 As shown, a medium-deep hole blasting spacer that can prevent slippage includes a support column 1, an airbag 2 sleeved on the outside of the support column 1, a positioning strip 201 fixedly connected to the outer wall of the airbag 2, a support frame 3 fixedly connected to the bottom end of the support column 1, a counterweight block 4 installed at the bottom end of the support frame 3, a support wire 5 passing through the inner wall of the support column 1, a spring piece 6 fixedly connected to the inner wall of the support column 1 at the bottom end of the support wire 5, a lifting block 7 fixedly connected to the bottom end of the spring piece 6 extending to the inner wall of the support frame 3, a lifting plate 8 fixedly connected to the outer wall of the lifting block 7, a telescopic guide groove 9 opened on the outer wall of the lifting plate 8, a connecting column 10 movably connected in the groove of the telescopic guide groove 9, a telescopic column 11 that slides horizontally with the inner wall of the support frame 3 fixedly connected to one end of the connecting column 10, and a support plate 12 fixedly connected to one end of the telescopic column 11.

[0025] Based on the above structure, the movement of the support cable 5 causes the spring piece 6 to move in the opposite direction, causing the spring piece 6 to move and drive the lifting block 7 to slide vertically upward along the inner wall of the support frame 3. This causes the telescopic guide grooves 9 on the outer walls of the four sets of lifting plates 8 to slide synchronously. Then, through the connecting column 10, the telescopic column 11 is driven to slide horizontally along the inner wall of the support frame 3. The sliding of the telescopic column 11 causes the support plate 12 to fit tightly against the inner wall of the blast hole, thereby achieving stable fixation of the airbag 2 and preventing the airbag 2 from shifting.

[0026] In one embodiment, the central axis of the airbag 2 coincides with the central axis of the support column 1, and the positioning strips 201 are equidistantly distributed along the outer wall of the airbag 2.

[0027] In this embodiment, the airbag 2 is easily inflated, causing the positioning strip 201 to fit tightly against the inside of the borehole, thereby improving the stability of the airbag 2's positioning.

[0028] In one embodiment, the counterweight 4 is in the shape of an inverted cone, and the spring piece 6 is in the shape of a cross.

[0029] In this embodiment, it is convenient for the staff to place the airbag 2 in the gun hole through the counterweight 4. Then, the staff pulls the support cable 5. The support cable 5 moves, which drives the spring 6 to move in the opposite direction, causing the spring 6 to move and drive the lifting block 7 to slide vertically upward along the inner wall of the support frame 3.

[0030] In one embodiment, the lifting plate 8 is provided with four sets, and the telescopic guide groove 9 is inclined.

[0031] In this embodiment, the sliding of the lifting block 7 drives the telescopic guide grooves 9 on the outer wall of the four sets of lifting plates 8 to slide synchronously, thereby driving the telescopic column 11 to slide horizontally along the inner wall of the support frame 3 through the connecting column 10.

[0032] In one embodiment, the support plate 12 has an arc-shaped shape, and the outer wall of the support plate 12 is provided with anti-slip texture.

[0033] In this embodiment, the telescopic column 11 slides to drive the support plate 12 to fit tightly against the inner wall of the borehole, thereby achieving stable fixation of the airbag 2 and preventing the airbag 2 from shifting.

[0034] In one embodiment, an inflation cylinder 13 is fixedly connected to the inner wall of the airbag 2, an inflation port 14 is fixedly connected to the bottom end of the inflation cylinder 13, a sealing ring 15 is fixedly connected to the top end of the inflation cylinder 13, and an inflation pull line 16 passes through the inner wall of the sealing ring 15, so that a sealing post 17 that is sealed and connected to the inner wall of the inflation port 14 is installed at the bottom end of the inflation pull line 16.

[0035] In this embodiment, the operator pulls the inflation cable 16, causing the inflation cable 16 to move in a straight line, which drives the sealing column 17 and the inflation port 14 to move away from each other. This allows the high-pressure gas inside the inflation cylinder 13 to inflate the airbag 2 through the inflation port 14, thereby causing the airbag 2 to expand and causing the positioning strip 201 to fit tightly against the inside of the blast hole, improving the positioning stability of the airbag 2.

[0036] In one embodiment, the sealing column 17 has a "T" shaped cross-section.

[0037] In this embodiment, by setting a sealing column 17 with a "T" shaped cross-section, it is beneficial for high-pressure gas to push the sealing column 17 to fit tightly with the air inlet 14, thus avoiding air leakage from the air cylinder 13.

[0038] In this embodiment, the anti-slip deep-hole blasting spacer works as follows: First, the operator places the airbag 2 in the blast hole using the counterweight 4. Then, the operator pulls the support cable 5, which moves the spring 6 in the opposite direction. This causes the spring 6 to move, which in turn causes the lifting block 7 to slide vertically upward along the inner wall of the support frame 3. This causes the telescopic guide grooves 9 on the outer walls of the four sets of lifting plates 8 to slide synchronously. Then, the telescopic column 11 slides horizontally along the inner wall of the support frame 3 via the connecting column 10. The sliding of the telescopic column 11 causes the support plate 12 to fit tightly against the inner wall of the blast hole, thus achieving stable fixation of the airbag 2 and preventing the airbag 2 from shifting.

[0039] Finally, pull the inflation cable 16 to make the inflation cable 16 move in a straight line, causing the sealing column 17 and the inflation port 14 to move away from each other, so that the high-pressure gas inside the inflation cylinder 13 inflates the airbag 2 through the inflation port 14, thereby causing the airbag 2 to expand and causing the positioning strip 201 to fit tightly with the inside of the blast hole, improving the positioning stability of the airbag 2.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A medium-deep hole blasting spacer to prevent slippage, characterized in that, The system includes a support column (1), an airbag (2) sleeved on the outside of the support column (1), a positioning strip (201) fixedly connected to the outer wall of the airbag (2), a support frame (3) fixedly connected to the bottom end of the support column (1), a counterweight (4) installed at the bottom end of the support frame (3), a support cable (5) penetrating through the inner wall of the support column (1), and a spring piece (6) fixedly connected to the inner wall of the support column (1) at the bottom end of the support cable (5). The bottom end extends to the inner wall of the support frame (3) and is fixedly connected to a lifting block (7). The outer wall of the lifting block (7) is fixedly connected to a lifting plate (8). The outer wall of the lifting plate (8) is provided with a telescopic guide groove (9). A connecting column (10) is movably connected in the groove of the telescopic guide groove (9). One end of the connecting column (10) is fixedly connected to a telescopic column (11) that slides horizontally with the inner wall of the support frame (3). One end of the telescopic column (11) is fixedly connected to a support plate (12).

2. The anti-slip medium-deep hole blasting spacer according to claim 1, characterized in that: The central axis of the airbag (2) coincides with the central axis of the support column (1), and the positioning strips (201) are equidistantly distributed along the outer wall of the airbag (2).

3. The anti-slip medium-deep hole blasting spacer according to claim 1, characterized in that: The counterweight (4) is in the shape of an inverted cone, and the spring (6) is in the shape of a cross.

4. The anti-slip medium-deep hole blasting spacer according to claim 1, characterized in that: The lifting plate (8) is provided in four sets, and the telescopic guide groove (9) is inclined in shape.

5. The anti-slip medium-deep hole blasting spacer according to claim 1, characterized in that: The support plate (12) has an arc shape, and the outer wall of the support plate (12) is provided with anti-slip texture.

6. The anti-slip medium-deep hole blasting spacer according to claim 1, characterized in that: An inflation cylinder (13) is fixedly connected to the inner wall of the airbag (2). An inflation port (14) is fixedly connected to the bottom end of the inflation cylinder (13). A sealing ring (15) is fixedly connected to the top end of the inflation cylinder (13). An inflation pull line (16) passes through the inner wall of the sealing ring (15). A sealing post (17) is installed at the bottom end of the inflation pull line (16) and is sealed to the inner wall of the inflation port (14).

7. The anti-slip medium-deep hole blasting spacer according to claim 6, characterized in that: The cross-section of the sealing column (17) is "T" shaped.

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