A grouting assembly with anti-adhesion and flushing functions

Abstract

The application provides a grouting assembly with anti-adhesion and flushing functions, which comprises a base and a valve rod assembly. The base is provided with a flushing port and a plurality of injection ports. The valve rod assembly comprises a valve rod body. The first end of the valve rod body is connected with the base. The inside of the valve rod body is provided with a flushing pipeline and an injection pipeline. The first end of the flushing pipeline is communicated with the flushing port. The first end of the injection pipeline is communicated with the injection port. The valve rod assembly further comprises a flushing valve core and a mixing valve core. The flushing valve core is arranged at the second end of the flushing pipeline. The mixing valve core is arranged in the valve rod body and is movable relative to the valve rod body. The mixing valve core has a blocking state and a mixing state. In the blocking state, the mixing valve core is used for blocking the injection pipeline. In the mixing state, the mixing valve core is used for unblocking the injection pipeline and the injection port, so that the anchoring agent is mixed at the second end of the injection pipeline. The grouting assembly has the advantage of good anti-adhesion effect.

Description

Technical Field

[0001] This invention relates to the field of mine roadway support equipment technology, specifically to a grouting assembly with anti-adhesion and flushing functions. Background Technology

[0002] With the rapid development of coal mines, metal mines, and other fields, rock bolt support, as an effective surrounding rock control technology, has been widely used. Rock bolt support, through steps such as drilling holes in the surrounding rock of coal roadways, installing anchoring agents and rock bolts, and pre-tightening the rock bolts, can effectively control surrounding rock deformation and ensure safe mine production.

[0003] In related technologies, anchoring agents are used to fill boreholes to form solid support structures. Anchoring agents with multiple components can react and solidify rapidly after mixing, which is particularly important for applications requiring rapid support, such as high-risk areas like coal mine roadways. However, when multi-component anchoring agents are mixed and pressurized for delivery, blockages can easily occur at the one-way valves. This can cause the one-way valves to become blocked and unable to open or close, leading to backflow of the mixed anchoring agent. This can further block the flow channels in the drill box, affecting construction efficiency. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a grouting assembly with anti-adhesion and flushing functions, which has the advantage of good anti-adhesion effect.

[0006] A grouting assembly with anti-adhesion and flushing functions according to an embodiment of the present invention includes: The base is provided with a flushing port and multiple liquid injection ports; A valve stem assembly includes a valve stem body, a first end of which is connected to the base. The valve stem body has an internal flushing pipe and an injection pipe. The first end of the flushing pipe is connected to the flushing port, and the first end of the injection pipe is connected to the injection port. The valve stem assembly further includes a flushing valve core and a mixing valve core. The flushing valve core is located at the second end of the flushing pipeline, allowing flushing liquid to be sprayed sequentially through the flushing port, the flushing pipeline, and the flushing valve core to the port at the second end of the injection pipeline. The mixing valve core is located within the valve stem body and is movable relative to the valve stem body, and the mixing valve core has a blocking state and a mixing state. In the blocked state, the mixing valve core is used to block the injection line; In the mixed state, the mixing valve core is used to clear and block the injection line and the injection port, so that the liquid injected through the injection port is mixed at the port of the second end of the injection line.

[0007] In the embodiment of this invention, the mixing valve core of the grouting assembly with anti-adhesion and flushing functions can effectively seal the injection pipeline in the sealing state, preventing the anchoring agent from mixing and solidifying prematurely within the pipeline, thus reducing pipeline blockage caused by anchoring agent adhesion. In the flushing state, the flushing valve core guides the flushing liquid through the flushing port, flushing pipeline, and flushing valve core, ultimately spraying it towards the second end of the injection pipeline, thereby flushing away residues within the pipeline and preventing anchoring agent backflow and pipeline blockage.

[0008] Furthermore, in the mixing state, the mixing valve core can open the injection pipeline and injection port, allowing the anchoring agent to be mixed at the second end of the injection pipeline. This design ensures that the anchoring agent does not solidify prematurely before mixing, improving construction efficiency. Moreover, through the coordinated operation of the flushing valve core and the mixing valve core, the grouting assembly can flexibly switch between different working states, improving the reliability and applicability of the assembly.

[0009] In some embodiments, the valve stem body includes a connecting section and an extension section connected in sequence, the connecting section being connected between the base and the extension section, and the valve stem assembly further includes a control element disposed on the connecting section and connected to the mixing valve core for controlling the mixing valve core to switch between the blocking state and the mixing state.

[0010] In some embodiments, the control element includes a control section and an elastic section. The connecting section is provided with a control cavity and a connecting pipe. The connecting pipe connects the injection port and the control cavity. The radial dimension of the control cavity is larger than the radial dimension of the injection pipe. The control section is adapted to the control cavity and connected to a first end of the mixing valve core. The first end of the elastic section abuts against the base, and the second end of the elastic section abuts against the control section. The injection port is used to introduce an anchoring agent. The anchoring agent enters the control cavity through the connecting pipe and drives the control section to move, so that the mixing valve core changes from the blocked state to the mixed state.

[0011] In some embodiments, the valve stem assembly further includes a mixing head connected to a second end of the valve stem body, wherein the second end of the flushing line and the second end of the injection line are both located inside the mixing head, the second end of the mixing valve core extends through the mixing head, and the second end of the mixing valve core is also fitted with a sealing ring, wherein in the sealed state, the sealing ring seals the port of the second end of the injection line.

[0012] In some embodiments, the cross-sectional area of ​​the second end of the mixing valve core gradually decreases along the flow direction of the anchoring agent.

[0013] In some embodiments, the mixing head further includes a mixing tank located on the side of the mixing head away from the base, and the mixing tank is connected to both the flushing line and the injection line.

[0014] In some embodiments, the width of the mixing groove gradually decreases in the direction from the flushing valve core to the mixing valve core.

[0015] In some embodiments, the sidewalls of the mixing tank at the first end away from the mixing valve core and at the second end away from the flushing valve core are both arc-shaped surfaces.

[0016] In some embodiments, the mixing head has a connecting conduit that forms part of the injection conduit, and the connecting conduit extends in a generally L-shaped or straight direction.

[0017] In some embodiments, the valve stem assembly further includes a blocking member comprising an elastic element and a blocking component. The mixing head has a blocking cavity communicating with and located at the second end of the injection line. The radial dimension of the blocking cavity is larger than the radial dimension of the injection line. The blocking member is disposed within the blocking cavity. The elastic element is located on the side of the blocking component adjacent to the outlet of the injection line, and one end of the elastic element abuts against the blocking component. Attached Figure Description

[0018] Figure 1 This is a first-view cross-sectional schematic diagram of a grouting component with anti-adhesion and flushing functions according to an embodiment of the present invention.

[0019] Figure 2 This is a second-view cross-sectional schematic diagram of a grouting assembly with anti-adhesion and flushing functions according to an embodiment of the present invention.

[0020] Figure 3 This is a cross-sectional schematic diagram of the mixing head of the grouting assembly with anti-adhesion and flushing functions according to an embodiment of the present invention.

[0021] Figure 4 This is a cross-sectional schematic diagram of the mixing head of a grouting assembly with anti-adhesion and flushing functions according to another embodiment of the present invention.

[0022] Figure label: 1. Base; 11. Injection port; 2. Valve stem assembly; 21. Valve stem body; 210. Flushing line; 211. Injection line; 212. Connecting section; 2121. Control chamber; 2122. Connecting line; 213. Extension section; 2131. Seal; 22. Flushing valve core; 23. Mixing valve core; 24. Mixing head; 241. Mixing tank; 242. Connecting line; 25. Sealing ring; 26. Barrier element; 261. Elastic element; 262. Barrier component; 27. Barrier chamber; 28. Channel; 291. Adjusting seat; 292. Adjusting screw. 31. Control section; 32. Elastic section. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] like Figure 1 and Figure 2 As shown, the grouting assembly with anti-adhesion and flushing functions in this embodiment of the invention includes a base 1 and a valve stem assembly 2.

[0025] The base 1 is provided with a flushing port and multiple injection ports 11; the valve stem assembly 2 includes a valve stem body 21, the first end of which is connected to the base 1. The valve stem body 21 has a flushing pipe 210 and an injection pipe 211 inside. The first end of the flushing pipe 210 is connected to the flushing port, and the first end of the injection pipe 211 is connected to the injection port 11. The valve stem assembly 2 also includes a flushing valve core 22 and a mixing valve core 23. The flushing valve core 22 is located at the second end of the flushing pipe 210, so that the flushing liquid passes sequentially through the flushing port, the flushing pipe 210, and the flushing valve. The core 22 is sprayed towards the port at the second end of the injection pipeline 211. The mixing valve core 23 is located inside the valve stem body 21 and is movable relative to the valve stem body 21. The mixing valve core 23 has a blocking state and a mixing state. In the blocking state, the mixing valve core 23 is used to block the injection pipeline 211. In the mixing state, the mixing valve core 23 is used to clear the injection pipeline 211 and the injection port 11 so that the liquid injected through the injection port (such as anchoring agents of different components, etc., the following will use anchoring agents as an example) is mixed at the port at the second end of the injection pipeline 211.

[0026] Specifically, such as Figure 1 and Figure 2As shown, the base 1 is located at the bottom of the overall assembly, supporting the entire assembly and providing a mounting platform for other components within it. The base 1 has a flushing port and multiple injection ports 11. The flushing port connects to the flushing line 210 to allow the introduction of flushing liquid (such as water, cleaning agents, etc.). The injection ports 11 connect to the injection line 211 to allow the introduction of anchoring agents of different compositions through different injection ports 11, preventing the anchoring agents from solidifying before mixing.

[0027] The first end of the valve stem body 21 (i.e., the lower end of the valve stem body 21) is detachably connected to the base 1 by bolts or other means. The valve stem body 21 has a flushing pipe 210 and an injection pipe 211 inside, and the extension directions of the flushing pipe 210 and the injection pipe 211 are generally consistent with the extension direction of the valve stem body 21. The lower end of the flushing pipe 210 is connected to the flushing port, and the upper end of the flushing pipe 210 is used to install the flushing valve core 22. The lower end of the injection pipe 211 is connected to the injection port 11, and the upper end of the injection pipe 211 is arranged adjacent to the mixing valve core 23. In the blocking state, the mixing valve core 23 can block the upper port of the injection pipe 211.

[0028] Understandably, the flushing valve core 22 is located at the second end of the flushing pipe 210 and is responsible for controlling the flow direction of the flushing liquid, allowing it to pass through the flushing port and the flushing pipe 210, and finally be sprayed onto the second end of the injection pipe 211. The mixing valve core 23 is located inside the valve stem body 21, meaning that the valve stem body 21 has a channel 28 adapted to the mixing valve core 23 to facilitate the movement of the mixing valve core 23 relative to the valve stem body 21. Furthermore, the mixing valve core 23 cooperates with the injection pipe 211 during relative movement, enabling the grouting device to have two working states: a blocking state and a mixing state.

[0029] In the blocked state, the mixing valve core 23 can block the outlet of the injection pipeline 211 (i.e., the port at the second end of the injection pipeline 211) to prevent the anchoring agents of different components in multiple injection pipelines 211 from reacting before mixing, and to avoid the anchoring agent from clogging the pipeline due to solidification before mixing. In the mixing state, as the mixing valve core 23 moves downward, the blocking state between the mixing valve core 23 and the injection pipeline 211 is released, that is, the liquid in the injection pipeline 211 can be discharged from the port at the second end. Then the anchoring agents in multiple injection pipelines 211 will mix at the second end of the injection pipeline 211 to form a complete anchoring agent. The mixed anchoring agent is then transported into the borehole so that the anchoring agent gradually solidifies over time.

[0030] After the anchoring agent is injected, the mixing valve core 23 is in the position of blocking the outlet of the injection pipeline 211 (i.e., the blocked state). Since the mixed anchoring agent is prone to remain on the upper end of the mixing valve core 23 in the mixed state, it can easily block the injection pipeline 211 if not cleaned in time. At this time, flushing liquid is introduced into the flushing pipeline 210. The flushing liquid is sprayed through the flushing valve core 22 to the port of the second end of the injection pipeline 211 to flush away the residual anchoring agent, prevent the anchoring agent from solidifying, and ensure the cleanliness of the upper end of the mixing valve core 23.

[0031] The mixing valve core 23 can be driven by a drive component, such as a telescopic cylinder or a motor, or it can be driven by a high-pressure circuit, for example, by introducing high-pressure fluid into the mixing valve core 23 to move it. The flushing valve core 22 can be a one-way valve, meaning that the flushing valve core 22 is normally closed (blocking the flushing pipeline 210). When high-pressure fluid is introduced into the flushing port, the flushing valve core 22 opens under pressure, thereby realizing the flushing function of the injection pipeline 211.

[0032] In other words, the mixing valve core 23 of the grouting assembly with anti-adhesion and flushing functions in this embodiment of the invention can effectively block the injection pipeline 211 in the sealed state, preventing the anchoring agent from mixing and solidifying prematurely in the pipeline, and reducing pipeline blockage caused by anchoring agent adhesion. In the flushing state, the flushing valve core 22 can guide the flushing liquid through the flushing port, the flushing pipeline 210, and the flushing valve core 22, ultimately spraying it towards the second end of the injection pipeline 211, thereby flushing away residues in the pipeline and preventing anchoring agent backflow and pipeline blockage.

[0033] Furthermore, when the mixing valve core 23 is in the mixing state, the anchoring agent can be injected into the injection pipeline 211 through the injection port 11, allowing the anchoring agent to be mixed at the second end of the injection pipeline 211. This design ensures that the anchoring agent does not solidify prematurely before mixing, improving construction efficiency. Moreover, through the coordinated operation of the flushing valve core 22 and the mixing valve core 23, the grouting assembly can flexibly switch between different working states, improving the reliability and applicability of the assembly.

[0034] In some embodiments, the valve stem body 21 includes a connecting section 212 and an extension section 213 connected in sequence. The connecting section 212 is connected between the base 1 and the extension section 213. The valve stem assembly 2 also includes a control element, which is disposed on the connecting section 212 and connected to the mixing valve core 23 for controlling the mixing valve core 23 to switch between a blocking state and a mixing state.

[0035] Specifically, such as Figure 1 and Figure 2As shown, the bottom of the connecting section 212 is connected to the base 1, and the top of the connecting section 212 is connected to the extension section 213. The connection can be made by bolting. The control components are arranged on the connecting section 212 to facilitate the movement of the mixing valve core 23 by mechanical, hydraulic, electric or other forms of actuation.

[0036] Understandably, designing the valve stem body 21 as a two-section detachable structure avoids having multiple mounting positions on a single component. This not only ensures the overall strength and integrity of the extension section 213 but also facilitates the design of extension sections 213 of different specifications (such as different sizes and materials) to connect with the connecting section 212, thus ensuring applicability to different scenarios. Therefore, the segmentation of the valve stem body 21 makes the maintenance and replacement of parts of the grouting assembly more convenient, reducing system maintenance costs.

[0037] Of course, sealing rings are provided at the gaps where liquid is transported between each connected component to ensure the sealing of the connection.

[0038] In some embodiments, the control component includes a control part 31 and an elastic part 32. The connecting section 212 is provided with a control cavity 2121 and a connecting pipe 2122. The connecting pipe 2122 connects the injection port 11 and the control cavity 2121. The radial dimension of the control cavity 2121 is larger than the radial dimension of the injection pipe 211. The control part 31 is adapted to the control cavity 2121 and connected to the first end of the mixing valve core 23. The first end of the elastic part 32 abuts against the base 1, and the second end of the elastic part 32 abuts against the control part 31. The injection port 11 is used to introduce anchoring agent. The anchoring agent enters the control cavity 2121 through the connecting pipe 2122 and drives the control part 31 to move, so that the mixing valve core 23 changes from a blocked state to a mixed state.

[0039] Specifically, as shown in the figure, the connecting pipe 2122 is connected to the injection port 11 via the injection pipe 211. The control part 31 and the elastic part 32 are both located within the control cavity 2121. The outer peripheral wall of the control part 31 abuts against the wall of the control cavity 2121, and the control part 31 can move vertically. The connecting pipe 2122 is located above the control part 31 so that when an anchoring agent (usually delivered under high pressure) is introduced into the injection port 11, the pressure of the anchoring agent drives the control part 31 to move downwards, thereby moving the mixing valve core 23. It should be noted that since only one type of anchoring agent is injected into the injection pipe 211, the anchoring agent can be prevented from reacting and solidifying within the injection pipe 211 when the control part 31 is driven.

[0040] It is understandable that, such as Figure 1 and Figure 2As shown, the control unit 31 is responsible for controlling the movement of the mixing valve core 23. The design of the control unit 31 allows it to fit into the control chamber 2121, and its movement is achieved through the pressure of the anchoring agent within the control chamber 2121. One end of the elastic part 32 abuts against the base 1, and the other end abuts against the control unit 31. The function of the elastic part 32 is to provide a restoring force, ensuring that the control unit 31 can return to its initial position after the pressure is released.

[0041] Preferably, the control cavity 2121 is a cavity on the connecting section 212, the radial dimension of which is larger than the radial dimension of the injection line 211. The design of the control cavity 2121 allows the anchoring agent to generate sufficient pressure within it to drive the control unit 31.

[0042] In other words, when the anchoring agent enters the connecting pipe 2122 through the injection port 11 and then into the control chamber 2121, the anchoring agent generates higher pressure within the control chamber 2121 because the radial dimension of the control chamber 2121 is larger than that of the injection pipe 211. This high-pressure anchoring agent pushes the control unit 31 to move, thereby causing the mixing valve core 23 to switch from a blocked state to a mixed state, allowing other anchoring agents in the injection pipe to mix at the second end of the injection pipe 211. When the pressure of the anchoring agent is less than the spring force, the control unit 31 returns to its initial position under the elastic force of the elastic part 32, ensuring that the mixing valve core 23 can return to the blocked state, ready for the next operation.

[0043] like Figure 1 and Figure 2 As shown, the valve stem assembly 2 also includes an adjusting seat 291 and an adjusting screw 292. The adjusting seat 291 is disposed in the control cavity 2121 and located below the elastic part 32. The adjusting screw 292 is arranged through the base 1 from bottom to top, and the upper end of the adjusting screw 292 abuts against the adjusting seat 291. The adjusting screw 292 is rotatable relative to the adjusting seat 291 so that the position of the adjusting seat 291 in the control cavity 2121 can be adjusted by rotating the adjusting screw 292, thereby adjusting the compression amount of the elastic part 32.

[0044] It is understandable that if the adjusting screw 292 is rotated clockwise, the adjusting seat 291 will move upward; conversely, if the adjusting screw 292 is rotated counterclockwise, the adjusting seat 291 will move downward.

[0045] In some embodiments, the extension 213 is provided with a seal 2131, which is located on the side of the extension 213 adjacent to the connecting section 212.

[0046] It is understandable that, such as Figure 1 and Figure 2As shown, the seal 2131 is located on the lower bottom wall of the connecting section 212. The seal 2131 is an annular part. The inner peripheral wall of the seal 2131 is in sealing contact with the outer peripheral wall of the mixing valve core 23. The seal 2131 can prevent the anchoring agent from flowing to the mixing head 24 through the gap between the mixing valve core 23 and the valve stem body 21.

[0047] In some embodiments, the valve stem assembly 2 further includes a mixing head 24, which is connected to the second end of the valve stem body 21. The second end of the flushing line 210 and the second end of the injection line 211 are both located inside the mixing head 24. The second end of the mixing valve core 23 is arranged through the mixing head 24. The second end of the mixing valve core 23 is also fitted with a sealing ring 25. In the sealing state, the sealing ring 25 seals the port of the second end of the injection line 211.

[0048] Specifically, such as Figure 1 and Figure 2 As shown, the mixing head 24 is located at the upper end of the valve stem body 21, and the mixing head 24 and the valve stem body 21 can be connected by bolts. The second end of the flushing line 210 and the second end of the injection line 211 are both located inside the mixing head 24. The flushing valve core 22 is installed at the port of the second end of the flushing line 210, while the mixing valve core 23 can switch between the blocking state and the mixing state inside the mixing head 24.

[0049] Understandably, since the anchoring agent mixes at the mixing head 24, incomplete cleaning is inevitable after prolonged use. In such cases, the mixing head 24 can be disassembled separately for cleaning or replacement, thereby improving maintenance and replacement efficiency. The sealing ring 25 can be made of rubber and is fitted onto the upper end of the mixing valve core 23 (i.e., the second end of the mixing valve core 23). In the sealed state, the outer peripheral wall of the sealing ring 25 abuts against the port of the second end of the injection line 211 to seal the injection line 211. Preferably, there can be multiple sealing rings 25, which are spaced apart along the extension direction of the mixing valve core 23.

[0050] In other words, the sealing ring 25 is fitted onto the mixing valve core 23. The length of the sealing ring 25 is greater than the radial dimension of the injection line 211 to ensure that, in the sealed state, the sealing ring 25 can completely seal the port at the second end of the injection line 211. It should be noted that the radial dimension of the mixing valve core 23 is smaller than the radial dimension of the channel 28 to facilitate the up-and-down movement of the mixing valve core 23 within the channel 28, avoiding contact and friction between the wall of the mixing valve core 23 and the wall of the channel 28, which could cause the mixing valve core 23 to become stuck or move poorly.

[0051] In addition, such as Figure 1As shown, the sealing ring 25 is positioned at the upper end of the mixing valve core 23, and the sealing ring 25 is a certain distance from the top of the sealing valve core 23. Thus, in the mixed state, after the anchoring agents of different components are mixed and solidified at the port of the second end of the injection pipeline 211, when the mixing valve core 23 moves upward, the top of the mixing valve core 23 can be used to push the solidified material upward, so as to cooperate with the flushing pipeline 210 to flush the port of the second end of the injection pipeline 211, thereby reducing the possibility of the port of the second end of the injection pipeline 211 being blocked.

[0052] Preferably, the upper end of the valve stem body 21 is provided with a mounting groove, and the mixing head 24 is adapted to be installed in the mounting groove, which makes the integrity of the overall component better. Furthermore, the peripheral wall of the valve stem body 21 can also protect the mixing head 24, further reducing the possibility of damage to the mixing head 24 during use and improving its service life.

[0053] In some embodiments, the cross-sectional area of ​​the second end of the mixing valve core 23 gradually decreases along the flow direction of the anchoring agent.

[0054] It is understandable that, such as Figure 1 and Figure 2 As shown, since the second end of the injection line 211 is arranged inside the mixing head 24, the cooperation between the mixing valve core 23 and the injection line 211 is also completed inside the mixing head 24. In the mixing state, as the mixing valve core 23 moves downward, the anchoring agent can be discharged from the injection line 211 only after a gap appears between the mixing valve core 23 and the port of the injection line 211.

[0055] Therefore, as the cross-sectional area of ​​the upper end of the mixing valve gradually decreases from bottom to top, it facilitates the flow of the anchoring agent and helps to improve the mixing efficiency of the anchoring agent at the mixing point.

[0056] In some embodiments, the mixing head 24 further includes a mixing tank 241, which is located on the side of the mixing head 24 away from the base 1, and the mixing tank 241 is connected to both the flushing line 210 and the injection line 211.

[0057] Specifically, such as Figure 1 and Figure 2 As shown, the mixing tank 241 is arranged on the upper surface of the mixing head 24, and the mixing tank 241 is connected to both the flushing pipe 210 and the injection pipe 211, so that the mixing tank 241 provides a cleaning or mixing place for the flushing liquid or anchoring agent.

[0058] Understandably, the design of the mixing tank 241 allows the anchoring agent to fully contact and mix in a relatively enclosed space before mixing, which helps to improve the uniformity and quality of the anchoring agent mixing. Since the mixing tank 241 is connected to the flushing pipe 210, the flushing liquid can be transported through the mixing tank 241, thereby cleaning the anchoring agent mixing area after construction and preventing residual anchoring agent from solidifying and clogging the pipe.

[0059] In some embodiments, the width of the mixing groove 241 gradually decreases in the direction from the flushing valve core 22 to the mixing valve core 23.

[0060] It is understandable that, such as Figure 1 and Figure 2 As shown, along the direction from the flushing valve core 22 to the mixing valve core 23, as the width of the mixing tank 241 decreases, the flow path of the flushing liquid gradually narrows, resulting in an increase in flow velocity. This helps to increase the flow velocity of the flushing liquid at the mixing point, thereby improving the cleaning efficiency.

[0061] In some embodiments, the sidewalls of the mixing tank 241 at the first end away from the mixing valve core 23 and at the second end away from the flushing valve core 22 are both arc-shaped surfaces.

[0062] It is understandable that, such as Figure 1 and Figure 2 As shown, the sidewalls at both ends of the mixing tank 241 are arc-shaped, and the two sides of the arc-shaped mixing tank 241 are smoothly connected. That is, the arc-shaped design provides a smoother flow path, which helps to reduce turbulence and eddies in the flow of anchoring agent, thereby reducing energy loss and pressure fluctuations.

[0063] The smoother flow path reduces resistance encountered by the anchoring agent during flow, thereby decreasing pressure loss and improving system efficiency. Smooth flow facilitates thorough mixing of the anchoring agent components, as turbulence and eddies can interfere with the mixing process, while a smooth flow path allows for better contact and mixing of the components. Furthermore, the curved sidewall design makes cleaning and maintenance of the mixing tank 241 easier, as the smooth surface is easier to clean, reducing the accumulation of dirt and residue.

[0064] Preferably, the flushing valve core 22 includes a plurality of cleaning outlets, which are arranged circumferentially at intervals along the center line of the flushing valve core 22.

[0065] Understandably, the rinsing liquid can be sprayed from multiple different locations, covering a larger cleaning area. Furthermore, since both ends of the mixing tank 241 have curved sidewalls, multiple cleaning outlets can spray a large amount of rinsing liquid during the cleaning process. This ensures the rinsing liquid is sprayed evenly from multiple outlets, reducing blind spots and making the cleaning more thorough, further reducing system malfunctions caused by residue blockage.

[0066] In some embodiments, the mixing head 24 has a connecting line 242 that forms part of the injection line 211, and the connecting line 242 extends in a generally L-shaped or straight direction.

[0067] It is understandable that, such as Figure 3 As shown, the injection line 211 extends from the base 1 to the valve stem body 21, and the connecting line 242 connects the injection line 211 located on the valve stem body 21 and the channel 28 of the valve stem body 21. The connecting line 242 extends in an L-shape, that is, the lower end (i.e., the vertical section) of the connecting line 242 is connected to the injection line 211 located on the valve stem body 21, and the upper end (i.e., the horizontal section) of the connecting line 242 is connected to the channel 28 of the valve stem body 21.

[0068] In another embodiment, such as Figure 4 As shown, the connecting pipe 242 extends in a straight line, with its lower end connected to the injection pipe 211 located on the valve stem body 21, and its upper end connected to the channel 28 of the valve stem body 21. It is understood that after prolonged use, the mixing head 24 may become clogged. After removing the mixing head 24, a cleaning tool can be used to directly clean the straight connecting pipe 242, thus facilitating the reuse of the mixing head 24.

[0069] In some embodiments, such as Figure 1 and Figure 2 As shown, the valve stem assembly 2 also includes a blocking member 26, which includes an elastic member 261 and a blocking component 262. The mixing head 24 has a blocking cavity 27, which is connected to the injection line 211 and located at the second end of the injection line 211. The radial dimension of the blocking cavity 27 is larger than the radial dimension of the injection line 211. The blocking member 26 is disposed in the blocking cavity 27. The elastic member 261 is located on the side of the blocking component 262 adjacent to the outlet of the injection line 211, and one end of the elastic member 261 abuts against the blocking component 262.

[0070] Specifically, such as Figure 1 and Figure 2The diameter of the blocking cavity 27 is larger than the diameter of the injection line 211. Therefore, both ends of the blocking cavity 27 form bosses. The elastic element 261 and the blocking component 262 are both placed inside the blocking cavity 27, with the elastic element 261 positioned above the blocking component 262. The upper end of the elastic element 261 abuts against the upper boss of the blocking cavity 27, and the lower end of the elastic element 261 abuts against the blocking component 262.

[0071] Understandably, the blocking component 262 can be a cone or a sphere to block the lower end of the blocking cavity 27. In the blocked state, the blocking component 262 abuts against the lower edge of the blocking cavity 27 under the elastic force of the elastic member 261, thereby blocking the injection line 211. In the mixed state, the liquid in the injection line 211 needs to overcome the sum of the elastic force of the elastic member 261 and the weight of the blocking component 262, thus making the injection line 211 open.

[0072] In other words, the second end of the injection pipeline 211 is provided with a blocking component 26, which can prevent the mixed anchoring agent from flowing into the injection pipeline 211 when the injection is finished, further avoiding blockage of the injection pipeline 211 and ensuring the smooth flow of the injection pipeline 211.

[0073] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0075] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0076] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0077] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A grouting assembly with anti-adhesion and flushing functions, characterized in that, include: The base is provided with a flushing port and multiple liquid injection ports; A valve stem assembly includes a valve stem body, a first end of which is connected to the base. The valve stem body has an internal flushing pipe and an injection pipe. The first end of the flushing pipe is connected to the flushing port, and the first end of the injection pipe is connected to the injection port. The valve stem assembly further includes a flushing valve core and a mixing valve core. The flushing valve core is located at the second end of the flushing pipeline, allowing flushing liquid to sequentially pass through the flushing port, the flushing pipeline, and the flushing valve core towards the port at the second end of the injection pipeline. The mixing valve core is located within the valve stem body and is movable relative to the valve stem body. The mixing valve core has a blocking state and a mixing state. In the blocked state, the mixing valve core is used to block the injection line; In the mixed state, the mixing valve core is used to clear the injection line and the injection port, so that the liquid injected through the injection port is mixed at the port of the second end of the injection line; The valve stem body includes a connecting section and an extension section connected in sequence. The connecting section is connected between the base and the extension section. The valve stem assembly also includes a control element, which is disposed in the connecting section and connected to the mixing valve core for controlling the mixing valve core to switch between the blocking state and the mixing state. The control component includes a control part and an elastic part. The connecting section is provided with a control cavity and a connecting pipe. The connecting pipe connects the injection port and the control cavity. The radial dimension of the control cavity is larger than the radial dimension of the injection pipe. The control part is adapted to the control cavity and connected to the first end of the mixing valve core. The first end of the elastic part abuts against the base, and the second end of the elastic part abuts against the control part. The injection port is used to introduce anchoring agent. The anchoring agent enters the control cavity through the connecting pipe and drives the control part to move, so that the mixing valve core changes from the blocked state to the mixed state.

2. The grouting assembly with anti-adhesion and flushing functions according to claim 1, characterized in that, The valve stem assembly also includes a mixing head, which is connected to the second end of the valve stem body. The second end of the flushing pipeline and the second end of the injection pipeline are both located inside the mixing head. The second end of the mixing valve core is arranged through the mixing head. The second end of the mixing valve core is also fitted with a sealing ring. In the sealing state, the sealing ring seals the port of the second end of the injection pipeline.

3. The grouting assembly with anti-adhesion and flushing functions according to claim 2, characterized in that, Along the direction from the control element to the mixing valve core, the cross-sectional area of ​​the second end of the mixing valve core gradually decreases.

4. The grouting assembly with anti-adhesion and flushing functions according to claim 3, characterized in that, The mixing head also includes a mixing tank located on the side of the mixing head away from the base, and the mixing tank is connected to both the flushing pipeline and the injection pipeline.

5. The grouting assembly with anti-adhesion and flushing functions according to claim 4, characterized in that, The width of the mixing groove gradually decreases along the direction from the flushing valve core to the mixing valve core.

6. The grouting assembly with anti-adhesion and flushing functions according to claim 5, characterized in that, The sidewalls of the mixing tank at the first end away from the mixing valve core and at the second end away from the flushing valve core are both arc-shaped surfaces.

7. The grouting assembly with anti-adhesion and flushing functions according to claim 6, characterized in that, The mixing head has a connecting pipe that forms part of the injection pipe, and the connecting pipe extends in a generally L-shaped or straight direction.

8. The grouting assembly with anti-adhesion and flushing functions according to claim 7, characterized in that, The valve stem assembly further includes a blocking member, which includes an elastic element and a blocking component. The mixing head has a blocking cavity, which is connected to the injection line and located at the second end of the injection line. The radial dimension of the blocking cavity is larger than the radial dimension of the injection line. The blocking member is disposed within the blocking cavity. The elastic element is located on the side of the blocking component adjacent to the outlet of the injection line, and one end of the elastic element abuts against the blocking component.

Images