Upward blast hole charging plugging device

Abstract

The invention belongs to the technical field of blast hole plugging, and discloses an upward blast hole charging plugging device which comprises a rack, clamping grooves are axially formed in one end of the outer side face of the rack at equal intervals, fixing rods are axially mounted at the end, close to the middle, of the rack at equal intervals, and handles are arranged at the ends, away from the rack, of the fixing rods. And the other end of the handle is connected with the fixed rod. When the supporting plate makes contact with and compresses the blast hole wall, the counter-acting force of the blast hole wall can balance the mortar pressure, the device is automatically locked at the current position, an operator does not need to conduct any complex upward-looking adjustment, only the device needs to be pushed into a hole and a mortar pump is started, and positioning and supporting can be automatically completed; the final expansion stroke of the supporting plate completely depends on the actual inner diameter of the blast hole, so that the device can adapt to different hole diameters in a large range without replacing parts, the problem that a traditional device is poor in adaptability is solved, the preparation time is remarkably shortened, and the overall efficiency of plugging operation is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of blast hole plugging, and particularly relates to an upward blast hole charging plugging device. BACKGROUND

[0002] In the rock and soil engineering such as mine exploitation, tunneling, water conservancy and hydropower, blasting is the main means of rock breaking. The plugging quality of blast hole is directly related to the blasting effect and safety production. Good plugging can ensure that the explosion energy fully acts on the rock mass, reduces the leakage of harmful gas in blasting, and prevents the blast hole from being washed out. Among them, the plugging of upward blast hole (i.e. vertical upward or blast hole with large upward angle) is much more difficult to operate and ensure the plugging quality than horizontal or downward blast hole due to the influence of gravity.

[0003] At present, for the plugging operation of upward blast hole, the existing technology and device have many problems to be solved. In the positioning and supporting link, the fixing mode of the traditional device is relatively primitive and cumbersome. Some devices rely on manual rotation of lead screws or use spring buckles for preliminary fixing. When operating from the top, it is not only time-consuming and laborious, but also difficult to accurately control the supporting force, which leads to the difficulty in ensuring the position and posture of the device in the blast hole. Especially when facing the blast hole with irregular hole wall or hole diameter deviation, the manual or semi-automatic positioning mode has poor adaptability and insufficient supporting stability, which is easy to displace or fall under the pressure of subsequent grouting, seriously affecting the accuracy and reliability of plugging.

[0004] In the grouting plugging link, the existing technology generally has the problems of complicated process and uneven plugging. The traditional operation process usually takes "positioning and supporting" and "grouting" as two independent steps. The operator needs to first install and fix the supporting device, and then arrange the grouting pipeline for grouting. The process is separated and the flow is complicated, which greatly prolongs the single-hole operation time. More seriously, the grouting of upward blast hole is mostly in a single-point injection mode. Influenced by gravity, the cement mortar and other plugging materials are difficult to uniformly fill the entire plugging section, especially in the top area of the blast hole, which is easy to form voids or non-dense areas, resulting in structural defects of the plugging body, and greatly reducing the airtightness and strength, leaving safety hazards. SUMMARY

[0005] The purpose of the present application is to provide an upward blast hole charging plugging device to solve the problems raised in the background.

[0006] In order to achieve the above object, the present application provides the following technical scheme: the uphole charging plugging device, including the frame, the frame outside surface one end is opened with the clamping groove in the axial equal interval, the frame is close to the middle part one end is installed with the fixed rod in the axial equal interval, the fixed rod is away from the frame one end is equipped with the handle, the handle other end and the fixed rod between the connection, the frame one end is opened with the through hole below the clamping groove in the axial equal interval, the frame middle part is installed with the mortar distribution component, the mortar distribution component outside surface fixed sleeve is connected with the self-adjusting component, the self-adjusting component is away from the handle one end and the clamping groove between the movable joint, the frame outside surface is equipped with the support plate in the axial equal interval, the support plate inside surface is installed with the extension rod, the extension rod one end penetrates the clamping groove one end and is connected with the self-adjusting component between,

[0007] The mortar distribution component one end input expansion cement mortar, and act on the inside of mortar distribution component, and drive the self-adjusting component, and through the self-adjusting component control multiple support plate relatively far away until the hole wall is contacted, auxiliary complete the plugging process.

[0008] When the hole charging plugging is carried out, the explosive is placed in the hole, and the operating end of the device, that is, the outside surface of the frame is located at the plugging end of the hole, and the handle is operated by hand, and the corresponding expansion cement mortar is prepared and pressurized by using a pump, and injected into the inside of the mortar distribution component, and the preparation process is completed.

[0009] As a further technical scheme of the present application, the mortar distribution component includes a storage tube, the inside of the storage tube movably sleeved with a piston plate, the rear end of the storage tube fixedly communicated with a feed pipe, the feed pipe away from the storage tube one end in turn penetrates the self-adjusting component and the handle one end and movably sleeved with the handle and the self-adjusting component between.

[0010] As a further technical scheme of the present application, the feed pipe away from the storage tube one end and the external expansion cement mortar input pump are communicated, the piston plate away from the feed pipe one end fixedly installed with a piston rod, the piston rod penetrates the storage tube one end and connected with the frame, the rear end of the storage tube and the self-adjusting component are connected.

[0011] As a further technical scheme of the present application, the outside surface of the piston rod movably sleeved with a limit spring, the left and right ends of the limit spring are connected with one end of the storage tube and one end of the piston plate respectively.

[0012] When the hole is plugged, the cement mortar is injected into the inside of the feed pipe, at this time the cement mortar enters the inside of the storage tube, and the piston plate is pressurized, at this time the limit spring is compressed, and the piston rod is driven to move away from the storage tube, and the force is applied to the self-adjusting component.

[0013] As a further technical scheme of the present application, the self-adjusting assembly comprises a movable plate, a middle part of the movable plate is movably sleeved between the feeding pipe, one end of the movable plate is movably sleeved between the fixed rod near the outer side, and the first fixed seat is fixedly installed on the end of the movable plate near the rack in an axial equidistant manner.

[0014] As a further technical scheme of the present application, the first fixed seat is movably connected with a connecting rod through a rotating shaft at one end away from the movable plate, the connecting rod is movably connected with a second fixed seat through a rotating shaft at one end away from the first fixed seat, the second fixed seat is fixedly installed with a clamping block at one end away from the connecting rod, the clamping block is movably connected with the clamping groove at one side, and the clamping block is connected with the extension rod at one end.

[0015] When the piston rod is displaced away from the storage pipe, the distance between the rack and the movable plate is increased, the movable plate is driven to be displaced away from the rack, the connecting rods are deflected towards the middle part, the clamping blocks are pushed, the clamping blocks are displaced relative to the clamping groove and towards the middle part of the rack, the extension rod and the support plate are displaced, the support plates are relatively close to each other, and when the outer side of the support plate contacts the inner wall of the blast hole, the front end of the device is inserted into the blast hole, the support plate contacts the inner wall of the blast hole, and the positioning process is completed.

[0016] The cement mortar required for plugging is utilized, that is, the pressure when the cement mortar is injected, the cooperation between the mortar distribution assembly and the self-adjusting assembly enables the device to quickly complete the positioning process before plugging, and the blast hole with different diameters can be quickly positioned, ensuring that the subsequent accurate plugging can be performed, effectively shortening the preparation time and improving the overall plugging efficiency.

[0017] As a further technical scheme of the present application, the outer side of the storage pipe near the feeding pipe is provided with a distribution box, the inner side of the distribution box is fixedly and axially communicated with a distribution valve in an equidistant manner, and the distribution valve is in communication with the outer side of the storage pipe.

[0018] As a further technical scheme of the present application, the front end of the support plate is provided with a mortar injection head through the locking frame, the bottom end of the mortar injection head is fixedly communicated with a feeding hose, and one end of the feeding hose away from the mortar injection head penetrates through the through hole and is in communication with the outer side of the distribution box.

[0019] When the outer side of the support plate is in contact with the inner wall of the blast hole, at this time the mortar head is located at one end of the inner wall, by opening a plurality of distribution valves, the cement mortar enters the inside of the distribution box through the distribution valve, and after distribution of the distribution box, it is guided out through a plurality of material conveying hoses, and finally guided out through the mortar head, multi-point injection to the inner wall of the blast hole, rapid grouting of one end of the blast hole, after injection, waiting for the cement mortar to dry can complete the plugging process.

[0020] By reusing the positioning process of the support plate, that is, after completing the plugging positioning, the position of the mortar head can be positioned, and at the same time, the cement mortar is injected at multiple points and acts on the inner wall of the blast hole. Through multi-point cement mortar injection, the plugging process is quickly completed, the whole process is quickly completed, the plugging time can be significantly shortened, and multi-point injection can avoid the influence of uneven grouting on the plugging effect and improve the overall plugging quality.

[0021] The beneficial effects of the present application are as follows:

[0022] 1、The present application realizes automatic positioning and support of the device by setting the linkage of the mortar distribution assembly and the self-adjusting assembly, greatly improving the operation convenience, hole diameter adaptability and work efficiency. In the prior art, when working in an upward blast hole, the device is fixed by manual adjustment, which is complicated, time-consuming and labor-consuming, and the positioning is not accurate. The present application uses the pumping pressure of the plugging medium itself as a power source, the mortar pressure is introduced into the storage pipe to drive the piston plate and the piston rod to move. This movement is accurately converted and amplified into the radial expansion action of the support plate through the lever and connecting rod mechanism of the self-adjusting assembly. This is a fully automatic force feedback process. The mortar pressure pushes the support plate to expand, and when the support plate contacts and presses the blast hole wall, the reaction force of the blast hole wall balances the mortar pressure, so that the device is automatically locked at the current position. The operator does not need to make any complex upward adjustment. Only need to push the device into the hole and start the mortar pump, the positioning and supporting steps can be automatically completed. The final expansion stroke of the support plate depends entirely on the actual inner diameter of the blast hole, so that the device can adapt to different hole diameters in a wide range without replacing parts, solving the problem of poor adaptability of traditional devices, significantly shortening the preparation time and improving the overall efficiency of the plugging operation.

[0023] 2、The present application realizes "power homology, time sequence linkage" by closely integrating the positioning support and the grouting plugging two core functions, greatly optimizes the operation process, shortens the plugging cycle, in the traditional plugging operation, support positioning and grouting are two separate processes, different tools are needed to execute step by step, the process is complicated and time-consuming, in the present application, the mortar distribution assembly is both a "hydraulic cylinder" that drives the self-adjusting assembly to realize positioning and a "flow divider" that distributes mortar for subsequent grouting, the support plate is both an "actuator" that realizes positioning support and a "work platform" that carries the mortar injection head, the device automatically completes positioning using the early pressure of the mortar flow, once positioning is completed, the system pressure is established, the operator only needs to open the distribution valve, and the same mortar flow is seamlessly switched to the grouting task, through the distribution box and the material conveying hose to the mortar injection head, by integrating the two independent processes into a continuous automatic process, the tool replacement and pipeline rearrangement are saved, the structure is compact, the process is smooth, the non-operation time is greatly compressed, and the single-hole plugging cycle is significantly shortened.

[0024] 3、The present application sets up a multi-point surrounding grouting system by setting multiple mortar injection heads at the front end of the support plate and cooperating with the distribution box and the material conveying hose, fundamentally solves the industry problems of uneven upward blasthole plugging and top cavity, significantly improves the plugging quality and safety, the biggest difficulty of upward blasthole plugging is to overcome the influence of gravity, when traditional single-point grouting, the mortar is easy to flow downward or aggregate under the action of gravity, resulting in difficulty in filling the top of the blasthole, forming a weak point or gap in plugging, which seriously affects the plugging strength and air tightness, the support plate of the present application automatically arranges multiple mortar injection heads at different positions of the blasthole section while being opened and positioned, after the mortar from the storage pipe is evenly distributed through the distribution box, it is sprayed into the blasthole inner wall at the same pressure through multiple material conveying hoses from multiple mortar injection heads, this multi-point, surrounding injection mode enables the mortar to quickly and uniformly cover the entire plugging area from different angles, especially effectively fills the top of the blasthole under the influence of gravity, ensuring the integrity and density of the plugging body, through multi-point grouting, the quality defects caused by uneven mortar injection are avoided, the formed plugging body is more homogeneous and reliable, greatly improving the plugging strength and safety. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic view of the overall structure of the present application;

[0026] Figure 2 It is a cooperation schematic view of the rack, fixed rod and handle structure of the present application;

[0027] Figure 3 It is a separate schematic view of the mortar distribution assembly structure of the present application;

[0028] Figure 4This is a cross-sectional schematic diagram of the internal structure of the mortar distribution component of the present invention;

[0029] Figure 5 This is a partial schematic diagram of the mortar distribution component structure of the present invention;

[0030] Figure 6 This is a separate schematic diagram of the self-adjusting component structure of the present invention;

[0031] Figure 7 This is a schematic diagram showing the cooperation between the support plate and the injection head structure of the present invention.

[0032] In the diagram: 1. Frame; 2. Slot; 3. Fixing rod; 4. Handle; 5. Through hole; 6. Mortar distribution assembly; 601. Storage pipe; 602. Piston plate; 603. Piston rod; 604. Limiting spring; 605. Feed pipe; 606. Distribution box; 607. Distribution valve; 7. Self-adjusting assembly; 701. Movable plate; 702. First fixed seat; 703. Second fixed seat; 704. Connecting rod; 705. Locking block; 8. Extension rod; 9. Support plate; 10. Slurry injection head; 11. Material conveying hose. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1 to 7 As shown in the embodiment of the present invention, the upward blast hole charging and sealing device includes a frame 1. One end of the outer side of the frame 1 is provided with slots 2 at equal intervals along the axis. One end of the frame 1 near the middle is provided with fixed rods 3 at equal intervals along the axis. One end of the fixed rods 3 away from the frame 1 is provided with a handle 4. The other end of the handle 4 is connected to the fixed rod 3. One end of the frame 1 is provided with through holes 5 at equal intervals along the axis, located below the slots 2. A mortar distribution component 6 is installed in the middle of the frame 1. A self-adjusting component 7 is fixedly sleeved on the outer side of the mortar distribution component 6. The end of the self-adjusting component 7 away from the handle 4 is movably engaged with the slots 2. The outer side of the frame 1 is provided with support plates 9 at equal intervals along the axis. An extension rod 8 is installed on the inner side of the support plate 9. One end of the extension rod 8 passes through one end of the slot 2 and is connected to the self-adjusting component 7.

[0035] Expansive cement mortar is input into one end of the mortar distribution component 6 and acts inside the mortar distribution component 6, driving the self-adjusting component 7. The self-adjusting component 7 controls multiple support plates 9 to move away from each other until they contact the borehole wall, thus assisting in completing the sealing process.

[0036] In the process of hole charging plugging, the explosive is placed in the hole, and the operating end of the device, i.e. the outer side of the rack 1, is located at the plugging end of the hole, while the handle 4 is operated by hand, and the corresponding expanding cement mortar is prepared and pressurized by a pump, and then injected into the inside of the mortar distribution assembly 6 to complete the preparation process.

[0037] As shown in Figure 1 and Figure 3 and Figure 4 , the mortar distribution assembly 6 comprises a storage tube 601, the inside of the storage tube 601 movably sleeved with a piston plate 602, the rear end of the storage tube 601 fixedly communicated with a feeding pipe 605, the end of the feeding pipe 605 away from the storage tube 601 in turn penetrating through the self-adjusting assembly 7 and one end of the handle 4 and movably sleeved between the handle 4 and the self-adjusting assembly 7, the end of the feeding pipe 605 away from the storage tube 601 communicated with an external expanding cement mortar input pump, the end of the piston rod 603 away from the feeding pipe 605 fixedly installed with the piston plate 602, the end of the piston rod 603 penetrating through the storage tube 601 and connected with the rack 1, the rear end of the storage tube 601 connected with the self-adjusting assembly 7, the outer side of the piston rod 603 movably sleeved with a limiting spring 604, the left and right ends of the limiting spring 604 respectively connected with one end of the storage tube 601 and one end of the piston plate 602.

[0038] In the process of hole plugging, the cement mortar is injected into the inside of the feeding pipe 605, at this time the cement mortar enters the inside of the storage tube 601, and the piston plate 602 is pressed, at this time the limiting spring 604 is compressed, and the piston rod 603 is driven to move away from the storage tube 601, and the force is applied to the self-adjusting assembly 7.

[0039] As shown in Figure 1 and Figure 6 , the self-adjusting assembly 7 comprises a movable plate 701, the middle part of the movable plate 701 movably sleeved with the feeding pipe 605, the end of the movable plate 701 close to the outer side movably sleeved with the fixed rod 3, the end of the movable plate 701 close to the rack 1 axially equidistantly fixedly installed with a first fixed seat 702, the end of the first fixed seat 702 away from the movable plate 701 movably connected with a connecting rod 704 through a pivot, the end of the connecting rod 704 away from the first fixed seat 702 movably connected with a second fixed seat 703 through a pivot, the end of the second fixed seat 703 away from the connecting rod 704 fixedly installed with a clamping block 705, the side of the clamping block 705 movably connected with the clamping groove 2, and the end of the clamping block 705 connected with the extension rod 8.

[0040] When the piston rod 603 is displaced away from the storage tube 601, the distance between the frame 1 and the movable plate 701 increases, which drives the movable plate 701 to be displaced away from one end of the frame 1, and the plurality of connecting rods 704 are deflected towards the middle, and the plurality of clamping blocks 705 are pushed, which drives the plurality of clamping blocks 705 to be displaced relative to the clamping grooves 2 and towards the middle of the frame 1, and drives the extension rods 8 and the supporting plates 9 to be displaced, and finally drives the plurality of supporting plates 9 to be relatively close to each other, until the outer side of the supporting plates 9 can be in contact with the inner wall of the blast hole, and the front end of the device is inserted into the blast hole, and the positioning process is completed by the contact between the supporting plates 9 and the inner wall of the blast hole.

[0041] The cement mortar required for plugging is utilized, i.e., the pressure during the injection of the cement mortar, and the cooperation between the mortar distribution assembly 6 and the self-adjusting assembly 7 enables the device to quickly complete the positioning process before plugging, and the blast hole with different diameters can be quickly positioned, which ensures that the subsequent accurate plugging can be performed, effectively shortens the preparation time, and improves the overall plugging efficiency.

[0042] As shown in Figure 1 and Figure 4 and Figure 5 and Figure 7 The outer side of the storage tube 601 near one end of the feeding tube 605 is provided with a distribution box 606, the inner side of the distribution box 606 is axially fixed and communicated with distribution valves 607 at equal intervals, the distribution valves 607 are in communication with the outer side of the storage tube 601, the front end of the supporting plate 9 is provided with a mortar injection head 10 through a locking frame, the bottom end of the mortar injection head 10 is fixedly communicated with a feeding hose 11, and one end of the feeding hose 11 away from the mortar injection head 10 penetrates through the through hole 5 and is in communication with the outer side of the distribution box 606.

[0043] When the outer side of the supporting plate 9 is in contact with the inner wall of the blast hole, the mortar injection head 10 is located at one end of the inner wall at this time, the plurality of distribution valves 607 are opened, the cement mortar enters the inside of the distribution box 606 through the distribution valves 607, and after being distributed by the distribution box 606, the cement mortar is guided out through the plurality of feeding hoses 11, and finally guided out through the mortar injection head 10, and sprayed to the inner wall of the blast hole in multiple points, which quickly injects the cement mortar to one end of the blast hole, and after the injection is completed, the plugging process is completed after the cement mortar is dried.

[0044] The positioning process of the supporting plate 9 is utilized again, i.e., after the plugging positioning is completed, the position of the mortar injection head 10 is positioned, and the cement mortar is injected at multiple points and acts on the inner wall of the blast hole, the cement mortar is injected at multiple points, and the plugging process is quickly completed, which can significantly shorten the plugging time, and the multiple-point injection can avoid the influence of uneven mortar injection on the plugging effect, and improve the overall plugging quality.

[0045] Working principle and use process:

[0046] Preparation: the operator holds the handle 4 and pushes the front end of the device, i.e. the side where the rack 1, the support plate 9 and the jetting head 10 are located, into the predetermined sealing position inside the upward blast hole to be sealed;

[0047] Connecting pipeline: the output pipeline of the external inflatable cement mortar input pump (not shown in the figure) is reliably connected to the end of the feeding pipe 605 of the device;

[0048] Starting positioning: start the mortar pump, and the inflatable cement mortar is pumped into the feeding pipe 605 under high pressure and then flows into the rear cavity of the storage pipe 601, and the pressure of the mortar continuously acts on the piston plate 602 to push the piston plate 602 to overcome the pre-tightening force of the limiting spring 604;

[0049] Support plate opening: the piston plate 602 drives the piston rod 603 to move away from the storage pipe 601, and since one end of the piston rod 603 is connected to the rack 1 and the rear end of the storage pipe 601 is connected to the self-adjusting assembly 7, the relative movement will cause the storage pipe 601 and the self-adjusting assembly 7 to move as a whole towards the deep part of the blast hole;

[0050] Automatic support: the displacement of the self-adjusting assembly 7 drives the movement of the movable plate 701, and the movable plate 701 generates a pushing force on the clamping block 705 through the linkage mechanism composed of the first fixed seat 702, the connecting rod 704 and the second fixed seat 703, and the clamping block 705 slides in the clamping groove 2 of the rack 1 and drives the extension rod 8 connected thereto, and the extension rod 8 in turn pushes the multiple support plates 9 to open outward along the radial direction;

[0051] Positioning and locking: the multiple support plates 9 continue to open outward until their outer sides are in close contact with the inner wall of the blast hole and generate sufficient supporting friction, at which time the reaction force provided by the support plates 9 and the mortar pressure reach balance, and the device is firmly and automatically positioned and supported in the blast hole, and this process is automatically completed by using the mortar pressure and can automatically adapt to blast holes of different diameters;

[0052] Start grouting: after positioning is completed, the operator opens the multiple distribution valves 607 provided on the distribution box 606, at which time the subsequent pumped mortar flows into the distribution box 606 through the distribution valves 607 in the storage pipe 601;

[0053] Multi-point sealing: the mortar is evenly distributed into the multiple feeding hoses 11 in the distribution box 606 and finally sprayed into the inner wall of the blast hole through the multiple jetting heads 10 fixed at the front end of the support plates 9 from multiple different directions of the blast hole section, thereby achieving rapid and uniform grouting of the front end of the blast hole;

[0054] Complete the work: After the grouting volume reaches the design requirements, close the mortar pump and the distribution valve 607. After the injected expansive cement mortar dries and solidifies, a firm and dense sealing body is formed in the blast hole, and the entire sealing process is completed.

Claims

1. A device for sealing off an upwardly directed blasthole, comprising a frame (1), characterised in that: One end of the outer side of the frame (1) is provided with slots (2) at equal intervals along the axis. The end of the frame (1) near the middle is provided with fixed rods (3) at equal intervals along the axis. The end of the fixed rod (3) away from the frame (1) is provided with a handle (4). The other end of the handle (4) is connected to the fixed rod (3). One end of the frame (1) is provided with through holes (5) located below the slots (2) at equal intervals along the axis. A mortar distribution component (6) is installed in the middle of the frame (1). A self-adjusting component (7) is fixedly sleeved on the outer side of the mortar distribution component (6). The end of the self-adjusting component (7) away from the handle (4) is movably engaged with the slots (2). The outer side of the frame (1) is provided with support plates (9) at equal intervals along the axis. An extension rod (8) is installed on the inner side of the support plate (9). One end of the extension rod (8) passes through one end of the slot (2) and is connected to the self-adjusting component (7). The mortar distribution component (6) inputs expansive cement mortar at one end and acts inside the mortar distribution component (6), and drives the self-adjusting component (7). The self-adjusting component (7) controls multiple support plates (9) to move away from each other until they come into contact with the borehole wall, thus assisting in completing the sealing process.

2. The uphole charge stemming device of claim 1, wherein: The mortar distribution component (6) includes a storage pipe (601), a piston plate (602) is movably sleeved inside the storage pipe (601), and a feed pipe (605) is fixedly connected to the rear end of the storage pipe (601). The end of the feed pipe (605) away from the storage pipe (601) passes through the self-adjusting component (7) and the handle (4) in sequence and is movably sleeved between the handle (4) and the self-adjusting component (7).

3. The uphole charge stemming device of claim 2, wherein: The end of the feed pipe (605) away from the storage pipe (601) is connected to an external expansive cement mortar input pump. The piston plate (602) away from the feed pipe (605) is fixedly equipped with a piston rod (603). The piston rod (603) passes through one end of the storage pipe (601) and is connected to the frame (1). The rear end of the storage pipe (601) is connected to the self-adjusting component (7).

4. The uphole charge stemming device of claim 3, wherein: The piston rod (603) is movably sleeved with a limiting spring (604), and the left and right ends of the limiting spring (604) are respectively connected to one end of the inner cavity of the storage tube (601) and one end of the piston plate (602).

5. The uphole charge stemming device of claim 4, wherein: The self-adjusting component (7) includes a movable plate (701), the middle part of which is movably connected to the feed pipe (605), and one end of the movable plate (701) is movably connected to the fixed rod (3) near the outer side. The first fixed seat (702) is fixedly installed axially at equal intervals at one end of the movable plate (701) near the frame (1).

6. The uphole charge stemming device of claim 5, wherein: The first fixed seat (702) is movably connected with a connecting rod (704) through a rotating shaft at one end away from the movable plate (701), one end of the connecting rod (704) away from the first fixed seat (702) is movably connected with a second fixed seat (703) through a rotating shaft, one end of the second fixed seat (703) away from the connecting rod (704) is fixedly installed with a clamping block (705), one side of the clamping block (705) is movably connected with the clamping groove (2), and one end of the clamping block (705) is connected with the extension rod (8).

7. The uphole charge stemming device of claim 6, wherein: The outer side of the storage tube (601) is provided with a distribution box (606) at one end close to the feeding tube (605), the inner side of the distribution box (606) is axially fixedly and equally spacedly connected with distribution valves (607), and the distribution valves (607) are communicated with the outer side of the storage tube (601).

8. The uphole charge stemming device of claim 7, wherein: The front end of the supporting plate (9) is provided with a jet head (10) through a locking frame, the bottom end of the jet head (10) is fixedly communicated with a feeding hose (11), one end of the feeding hose (11) away from the jet head (10) penetrates through the through hole (5) and is communicated with the outer side of the distribution box (606).

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