Valve structure and system comprising same

Abstract

The utility model provides a valve structure and a system comprising the same, and belongs to the technical field of tunnel concrete pouring, the valve structure at least comprises a shell, a valve core structure and a rotary execution unit, a pouring port and a slurry discharge channel are formed on the shell, the valve core structure comprises a valve core main body located in the shell and an inflow pipe extending out of the shell, and the rotary execution unit is connected with the valve core main body. A fluid channel communicating with the inflow pipe is formed in the valve element body, the valve element body is further connected with a rotation execution unit, and the rotation execution unit can drive the valve element structure to rotate around the central axis of the inflow pipe so that the fluid channel can be selectively arranged at the pouring opening or the slurry discharging channel. No matter how the valve element structure rotates, the fluid channel in the valve element body is communicated with the inflow pipe all the time, and the dislocation problem does not exist. In addition, the blocking face on the valve element body and the forming face at the pouring opening are consistent in surface shape and coplanar, and the problem that after concrete is solidified, a concrete boss is formed on the inner wall of the tunnel, and consequently the follow-up procedure is complex can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel concrete pouring, and particularly relates to a valve structure and a pouring system comprising the same. Background Art

[0002] During tunnel construction, concrete pouring is an important process to ensure the stability and safety of the engineering structure. In the past, this process was mostly carried out by manual laying, chute conveying or pouring using a concrete distributor. These methods have problems such as low construction efficiency, high labor demand, excessive generation of waste concrete, and they are also prone to blocking the pipeline, resulting in the interruption of the construction process. In recent years, with the development of society and the progress of engineering technology, people's requirements for the efficiency of concrete pouring in tunnel construction have become higher and higher, which has promoted the development of construction technology towards automation and intelligence to meet the needs of rapid and high-quality construction.

[0003] Chinese Patent ZL202021793305.X discloses a conduit piping system for tunnel concrete pouring construction, which is an automated pressurized pouring system for a lining trolley. It equidistantly arranges several three-way grouting injectors along the inner wall of the trolley, and connecting pipes are arranged between several three-way grouting injectors. When grouting, it sequentially uses the three-way grouting injectors from bottom to top to grout different positions inside the tunnel, greatly reducing the manpower required for grouting, improving the concrete grouting efficiency, and having better construction effects. However, the three-way grouting injector (essentially a valve) in the above patent still has the following problems: 1. Its elbow pipe is arranged inside the turntable and both ends of the elbow pipe are located on the circumference of the turntable. This makes it necessary for both ends of the elbow pipe to rotate around the rotation axis of the turntable when rotating. The rotation axis of the turntable is substantially perpendicular to the center line of the elbow pipe. In order to ensure that both ends of the elbow pipe are aligned with the connection ports after rotation and avoid pipe blockage, both ends of the elbow pipe have to be sealed, for example, connection flange plates are connected and arranged at both ends of the elbow pipe; further, in the above three-way grouting injector, when the end of the elbow pipe is misaligned with the connection port, it is easy to cause difficulties in the entry of concrete into the three-way grouting injector, and in severe cases, even pipe blockage. Since the turntable rotates around the pin shaft, in order to avoid misalignment, it not only requires that both ends of the elbow pipe can be aligned with the connection ports in the circumferential direction, but also requires that both ends of the elbow pipe can be aligned with the connection ports in the axial direction of the pin shaft. Therefore, it has high requirements for the installation accuracy of the turntable; 2. Its pouring port has a certain extension length. One end of the pouring port is connected to the concrete grouting part, and the other end is connected to the grouting cavity. When the blocking part seals the pouring port, the blocking part is located in the grouting cavity and it cannot fill the pouring port, resulting in a cavity being formed at the pouring port. After the concrete is poured and solidified, a concrete convex platform will be formed on the inner wall of the tunnel here. This is not conducive to the removal or movement of equipment such as the three-way grouting injector and the trolley, and subsequent construction such as knocking out and repairing the convex platform is also required, with cumbersome procedures.

[0004] In view of this, the prior art needs to be further improved. Summary of the invention

[0005] In view of the shortcomings of the prior art, the utility model provides a tunnel lining plugging structure and a system including the same, aiming to solve the problem of low construction efficiency when removing the pads after the pouring construction is completed in the prior art, so as to further improve the construction efficiency.

[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0007] A valve structure includes an outer shell, a valve core structure and a rotary execution unit, wherein a slurry discharge body and a mounting portion for mounting and fixing the outer shell are formed on the outer shell, a pouring port is formed in the middle of the mounting portion, a slurry discharge channel is formed at the slurry discharge body, the valve core structure includes a valve core body located in the outer shell and an inlet pipe extending to the outside of the outer shell, a fluid channel connected to the inlet pipe is formed in the valve core body, the valve core structure is connected to the rotary execution unit, and the rotary execution unit can drive the valve core structure to rotate around the rotation center axis of the inlet pipe when working, and thereby selectively align the fluid channel at one of the pouring port and the slurry discharge channel.

[0008] A valve structure includes an outer shell, a valve core structure, a rotary actuator and a protective cover, wherein the outer shell is installed in the protective cover, and a slurry discharge body and a casting body extending to the outside of the protective cover are formed on the outer shell, and a slurry discharge channel and a casting channel connected to the inside of the outer shell are respectively formed inside the slurry discharge body and the casting body, and the valve core structure includes a valve core body located in the outer shell and an inlet pipe extending to the outside of the outer shell, the inlet pipe extends and passes through the protective cover, and a fluid channel connected to the inlet pipe is formed in the valve core body, and the valve core structure is connected to the rotary actuator unit, and the rotary actuator unit can drive the valve core structure to rotate around the rotation center axis of the inlet pipe when working, and then selectively align the fluid channel with one of the conductive casting channel and the slurry discharge channel.

[0009] Compared with the prior art, the utility model has at least the following beneficial effects:

[0010] 1. Through the technical solution of the utility model, the valve core structure rotates around the central axis of the inlet pipe when rotating. No matter how the valve core structure rotates, the fluid channel in the valve core body is always connected with the inlet pipe, and there will be no problem of concrete being difficult to enter the valve structure due to misalignment, and the setting of the sealing parts is reduced;

[0011] 2. In one technical solution, the valve structure is directly installed on the trolley through the mounting part, and the sealing surface is consistent with and coplanar with the forming surface and the outer wall surface of the trolley. This avoids the formation of a concrete boss on the inner wall of the tunnel after the pouring construction is completed, and forms a complete tunnel lining inner wall at one time, which facilitates the subsequent dismantling of the trolley, valve structure and other equipment and simplifies the construction steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a valve structure in one embodiment of the utility model;

[0014] Figure 2 yes Figure 1 The three-dimensional structure schematic diagram of the valve structure shown in another viewing angle;

[0015] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the valve structure shown in another viewing angle;

[0016] Figure 4 yes Figure 1 A schematic diagram of the top view of the valve structure shown;

[0017] Figure 5 yes Figure 4 The cross-sectional structure schematic diagram of the valve structure shown in the AA direction;

[0018] Figure 6 yes Figure 1 The cross-sectional structure diagram of the valve structure shown in the figure is coordinated with the trolley during grouting (refer to Figure 5 , its valve core structure rotates);

[0019] Figure 7 yes Figure 1 The three-dimensional structural schematic diagram of the valve structure shown when the first housing is removed;

[0020] Figure 8 yes Figure 1 A three-dimensional structural schematic diagram of a valve core structure used in the valve structure shown;

[0021] Fig. 9 yes Figure 8 The three-dimensional structure schematic diagram of the valve structure shown in another viewing angle;

[0022] Fig.10 It is a three-dimensional structural schematic diagram of a valve structure in another embodiment of the utility model;

[0023] Fig.11 yes Fig.10 The three-dimensional structure schematic diagram of the valve structure shown in another viewing angle;

[0024] Fig.12 yes Fig.10 A schematic diagram of the three-dimensional structure of the valve structure shown in another viewing angle;

[0025] Among them, 1-housing, 2-valve core structure, 3-installation part, 4-slurry discharge body, 5-rotation execution unit, 6-power unit, 7-power seat, 8-support part, 9-casting mouth, 10-trolley, 11-casting cavity, 12-inner wall of tunnel surrounding rock, 13-positioning groove, 14-protective cover, 15-hanging frame, 16-casting body, 17-plug-in groove,

[0026] 101- first shell, 102- second shell,

[0027] 21- valve core body, 22- inlet pipe,

[0028] 201-fluid channel, 202-blocking surface, 203-cavity,

[0029] 221-seal ring body, 222-seal ring groove, 2011-inlet, 2012-outlet,

[0030] 301-mounting plate, 302-protrusion,

[0031] 401-slurry discharge channel, 402-forming surface,

[0032] 501 - rotating shaft, 502 - force applying part, 503 - connecting part. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0034] Embodiment 1

[0035] like Figures 1 to 9As shown, the utility model provides a valve structure, which includes a shell 1, a valve core structure 2 and a rotary execution unit 5, wherein a slurry discharge body 4 and a mounting portion 3 for mounting and fixing the shell 1 are formed on the shell 1, a pouring port 9 is formed in the middle of the mounting portion 3, a slurry discharge channel 401 is formed at the slurry discharge body 4, the valve core structure 2 includes a valve core body 21 located in the shell 1 and an inlet pipe 22 extending to the outside of the shell 1, a fluid channel 201 connected to the inlet pipe 22 is formed in the valve core body 21, the valve core structure 2 is (directly or indirectly) connected to the rotary execution unit 5, and the rotary execution unit 5 can drive the valve core structure 2 to rotate around the rotation center axis of the inlet pipe 22 when working, and thereby selectively align the fluid channel 201 (more accurately, the outlet 2012 of the fluid channel 201) at one of the pouring port 9 and the slurry discharge channel 401. Through the above arrangement, when the fluid channel 201 is aligned with the pouring port 9, the fluid channel 201 can be used to inject concrete into the pouring cavity 11 for pouring; when the fluid channel 201 is aligned with the slurry discharge channel 401, the fluid channel 201 is connected to the slurry discharge channel 401, and the concrete slurry can be transported to the next valve structure or the next pouring position through the slurry discharge channel 401.

[0036] It should be noted that the three-way grouting device used in the prior art, as disclosed in Patent ZL202021793305.X, has a bend pipe arranged inside the turntable and both ends of the bend pipe are located on the circumference of the turntable, which means that both ends of the bend pipe need to rotate around the rotation axis of the turntable during rotation, and the rotation axis of the turntable is roughly perpendicular to the center line of the bend pipe. In order to ensure that the two ends of the bend pipe are aligned with the connecting port after the bend pipe rotates and avoid pipe blockage, both ends of the bend pipe have to be sealed, for example, connecting flanges are connected at both ends of the bend pipe. In addition, when the end of the bend pipe is misaligned with the connecting port, it is easy to make it difficult for concrete to enter the three-way grouting device, and even block the pipe in severe cases. Since the turntable rotates around the pin shaft, in order to avoid misalignment, it is required that not only the two ends of the bend pipe in the circumferential direction be aligned with the connecting port, but also the two ends of the bend pipe in the axial direction of the pin shaft be aligned with the connecting port. Therefore, it has high requirements on the installation accuracy of the turntable. The utility model adopts a special setting mode, and the valve core structure 2 rotates around the rotation center axis of the inlet pipe 22 when rotating. In this way, no matter how the valve core structure 2 rotates, the fluid channel 201 in the valve core body 21 is always connected with the inlet pipe 22. Therefore, there will be no problem that concrete is difficult to enter the valve structure due to misalignment.

[0037] As a preferred embodiment, the rotary actuator 5 is connected and arranged on the side of the valve core body 21 away from the inlet pipe 22. The rotary actuator 5 is rotatably matched with the housing 1. The rotary actuator 5 can be a power unit such as an electric motor, etc., or a driven component such as a pulley driven by a belt or a rotary component driven by a hydraulic cylinder (see Figure 2 ) etc. Through the above arrangement, both ends of the valve core body 21 are supported on the housing 1 through the inlet pipe 22 and the rotary actuator 5, and the rotation stability of the valve core body 21 is higher. In addition, since the rotation of the valve core structure 2 is achieved by the rotary actuator 5 arranged on the side of the valve core body 21 away from the inlet pipe 22, the alignment of the outlet 2012 of the fluid channel 201 and the slurry discharge channel 401 will be easier. For example, after installation, it is only necessary to control the rotation angle of the rotary actuator 5 to achieve alignment.

[0038] It should also be noted that, in the above technical solution, the slurry discharge body 4 can be a slurry discharge pipe, which is connected to the interior of the outer shell 1 (more specifically, the valve chamber inside the outer shell 1 for the valve core body 21 to rotate), and the slurry discharge body 4 can also be only a part of the outer shell 1. When the slurry discharge body 4 is only a part of the outer shell 1, the slurry discharge channel 401 is a slurry discharge opening formed on the outer shell 1; in addition, for the valve core structure 2, its valve core body 21 and the inlet pipe 22 can be a detachable connection or an integral connection; the above arrangement of the slurry discharge body 4 and the valve core structure 2 should also be understood as the protection scope of the present utility model.

[0039] In a preferred embodiment, the mounting portion 3 is adapted to the grouting opening on the trolley 10. In specific use, the valve structure is mounted at the grouting opening on the trolley 10 through the mounting portion 3. At this time, the pouring port 9 is facing the inner wall 12 of the tunnel surrounding rock, and the pouring port 9 is used to pour concrete into the pouring cavity 11 between the trolley 10 and the inner wall 12 of the tunnel surrounding rock.

[0040] In order to better achieve the purpose of the utility model, a sealing surface 202 is formed on the valve core body 21, and a molding surface 402 is formed on the side of the mounting portion 3 facing the inner wall 12 of the tunnel surrounding rock. The sealing surface 202 and the molding surface 402 have the same surface shape (for example, both are flat or curved), and when the fluid channel 201 is connected to the slurry discharge channel 401, the sealing surface 202 is just blocked at the pouring port 9. Preferably, when the sealing surface 202 is blocked at the pouring port 9, the sealing surface 202 is coplanar with the molding surface 402 (see Figure 5). Further preferably, the molding surface 402 is consistent with the outer wall surface of the trolley 10 on the side facing the inner wall 12 of the tunnel surrounding rock. When the valve structure is installed on the trolley 10, the molding surface 402 is coplanar with the outer wall surface of the trolley 10. It should be noted that the existing three-way grouting device has a certain extension length of the grouting port. When the sealing part seals the grouting port, the sealing part is located in the grouting cavity, and it is impossible to fill the grouting port, resulting in a cavity formed at the grouting port. After the concrete is poured and solidified, a concrete boss will be formed on the inner wall of the tunnel, which is not conducive to the removal or movement of the three-way grouting device, trolley and other equipment, and it is also necessary to knock out and repair the boss in the subsequent construction, which is cumbersome. The utility model arranges the valve core body 21 and the mounting portion 3 so that the forming surface 402, the outer wall surface of the trolley 10 and the blocking surface 202 can be kept consistent when in the blocking position, thereby avoiding the formation of a boss, facilitating the removal or movement of equipment such as the trolley in the later stage, and simplifying the construction steps. It should also be noted that in the utility model, the forming surface 402, the outer wall surface of the trolley 10 and the blocking surface 202 are arranged to be consistent and coplanar, which can avoid the formation of a concrete boss in the tunnel after the concrete construction is completed. In addition, although "setting the molding surface 402, the outer wall surface of the trolley 10 and the blocking surface 202 to be consistent and coplanar" is the best choice in this embodiment, in the actual construction process, since the valve structure of the utility model is very small compared to the trolley 10, its molding surface 402 and the blocking surface 202 may not be coplanar and consistent with the outer wall surface of the trolley 10. For example, the molding surface 402 and the blocking surface 202 can both be set to be planes, and this method should still fall within the protection scope of the present application.

[0041] Furthermore, the mounting portion 3 includes a mounting plate 301 and a protrusion 302. The protrusion 302 is located in the middle of the mounting plate 301 facing the inner wall 12 of the tunnel surrounding rock. The side of the protrusion 302 facing the inner wall 12 of the tunnel surrounding rock is formed as a molding surface 402, and the pouring port 9 is formed in the middle of the molding surface 402. It should be noted that during the pouring construction, in order to pour through the trolley 10, a corresponding grouting opening will be provided on the trolley 10. The utility model can match the corresponding grouting opening on the trolley 10 through the provision of the protrusion 302. During installation, the mounting plate 301 of the mounting portion 3 is installed on the inner wall surface of the trolley 10, and the protrusion 302 is embedded in the grouting opening (see Figure 6 ), so as to ensure that the forming surface 402 is coplanar with the outer wall of the trolley 10 at the end of installation (by selecting the protrusion 302 of corresponding thickness), and the casting port 9 is formed in the middle of the forming surface 402, so as to facilitate the subsequent concrete pouring construction of the casting cavity 11.

[0042] In a preferred embodiment, the rotary execution unit 5 is connected to the power unit 6, and the power unit 6 provides the power required for the rotation of the rotary execution unit 5. Preferably, the power unit 6 is hinged to the rotary execution unit 5, and one end of the power unit 6 away from the rotary execution unit 5 is hinged to the power seat 7. The power seat 7 is used to provide support for the power unit 6. Since both ends of the power unit 6 are hinged, for example, hinged by a pin, this can ensure that it can adaptively rotate to adapt to the rotation of the rotary execution unit 5 when power is applied. In a further preferred embodiment, the power unit 6 adopts a piston structure, such as a hydraulic piston structure.

[0043] In a preferred embodiment, the housing 1 is composed of a first housing 101 and a second housing 102 which are connected to each other. This is to facilitate processing, manufacturing and installation.

[0044] In a further preferred embodiment, the outer shell 1 and the valve core structure 2 are both made of a composite polymer lightweight material. Preferably, a support skeleton is provided inside the outer shell 1 and the valve core structure 2. Further preferably, one or more closed cavities 203 are formed inside the valve core body 21 of the valve core structure 2. The above arrangement can reduce the weight of the valve structure as much as possible, which is beneficial to the installation, disassembly and transportation of the equipment during on-site construction. In a preferred example, a positioning groove 13 is also formed on one side end face of the valve core body 21. This positioning groove 13 is provided to facilitate the injection molding of the composite polymer and is not necessary, but it should also belong to the protection scope of the present utility model.

[0045] In a preferred example, the valve core body 21 is an incomplete cylinder. Specifically, the outer contour of the valve core body 21 includes planes located at both ends, and an incomplete cylindrical surface and a sealing surface 202 located between the two end planes. The sealing surface 202 is extended along the axial direction of the cylinder (the valve core body 21 becomes an incomplete cylinder due to the setting of the sealing surface 202), and the rotary actuator unit 5 and the inlet pipe 22 are respectively connected to the two end planes of the valve core body 21, and the rotary actuator unit 5, the inlet pipe 22 and the valve core body 21 have the same rotation axis, for example, they are all located at the center of the cylinder.

[0046] In a further preferred embodiment, a sealing ring body 221 is formed outside the inlet pipe 22 near the valve core body 21, and the outer side of the inlet pipe 22 is rotatably sealed with the housing 1 through the sealing ring body 221. Further preferably, a sealing ring groove 222 can be provided at the sealing ring body 221 for installing a sealing ring, etc.

[0047] In a preferred embodiment, the rotary actuator 5 includes a rotating shaft 501, a force-applying portion 502 and a connecting portion 503. The rotating shaft 501 is connected to the end face of the valve core body 21 away from the inlet pipe 22 through the connecting portion 503, and the central axis of the rotating shaft 501 is the same as the rotation axis of the valve core body 21. In a further preferred embodiment, the rotary actuator 5 is rotatably sealed with the housing 1 through the connecting portion 503, and the connecting portion 503 is disc-shaped as a whole. The above is only a preferred example. As mentioned above, the rotary actuator 5 can also be a power unit such as a motor, and the output shaft of the motor is the rotating shaft 501. Of course, any other type of rotary actuator 5, as long as it can drive the valve core structure 2 to rotate according to the rotation method of the utility model, should be considered to fall within the protection scope of the utility model.

[0048] In a further preferred embodiment, a support portion 8 is further included. The support portion 8 is disposed at the mounting portion 3 and spaced apart from the housing 1 . One end of the rotating shaft 501 away from the valve core body 21 is rotatably disposed on the support portion 8 .

[0049] Furthermore, the inlet pipe 22 is formed as an inlet port 2011, and the cylindrical surface of the valve core body 21 is formed with an outlet port 2012. The basic working principle of the valve structure of the utility model is as follows: during the pouring construction, the outlet port 2012 is aligned with the pouring cavity 11 (see Figure 6 At this time, the outlet 2012 is opposite to the pouring port 9). At this time, the concrete from the inlet 2011 enters the fluid channel 201 through the inlet pipe 22, and then is discharged from the outlet 2012 and enters the pouring cavity 11 for pouring. After pouring for a period of time, the position corresponding to the pouring port 9 of the current valve structure in the pouring cavity 11 is filled with concrete slurry, and it becomes more difficult to continue to inject concrete from here. At this time, the valve core structure 2 can be driven to rotate by rotating the execution unit 5 to align the outlet 2012 to the discharge channel 401 at the discharge body 4. At this time, the blocking surface 202 is just blocked at the pouring port 9 to achieve the blocking of the pouring port 9, and the concrete from the inlet 2011 continues to enter the fluid channel 201 through the inlet pipe 22, and enters the next valve structure from the discharge channel 401, and the valve structure at the next position is poured. Construction, thereby realizing grouting at different positions inside the tunnel in turn.

[0050] Embodiment 2

[0051] Different from the first embodiment, in this embodiment, the housing 1 is not provided with the mounting portion 3 as shown in the first embodiment. Figures 10 to 12 As shown, a protective cover 14 is arranged on the outer side of the shell 1 , and a slurry discharge body 4 and a casting body are formed on the shell 1 , and both the slurry discharge body 4 and the casting body extend to the outside of the protective cover 14 .

[0052] Specifically, the present embodiment relates to a valve structure, which includes a housing 1, a valve core structure 2, a rotary actuator 5 and a protective cover 14, wherein the housing 1 is installed in the protective cover 14, and a slurry discharge body 4 and a casting body 16 extending to the outside of the protective cover 14 are formed on the housing 1, and a slurry discharge channel 401 and a casting channel connected to the inside of the housing 1 are formed in the interior of the slurry discharge body 4 and the casting body 16, respectively, and the valve core structure 2 includes a valve core body 21 located in the housing 1 and an inlet pipe 22 extending to the outside of the housing 1, and the inlet pipe 22 is provided. The tube 22 extends and passes through the protective cover 14. A fluid channel 201 connected to the inlet pipe 22 is formed in the valve core body 21. The valve core structure 2 is connected (directly or indirectly) to the rotary actuator 5. The rotary actuator 5 can drive the valve core structure 2 to rotate around the rotation center axis of the inlet pipe 22 during operation, and then selectively align the fluid channel 201 (more accurately, the outlet 2012 of the fluid channel 201) with one of the conductive casting channel and the slurry discharge channel 401. Further, a hanging bracket 15 is also connected to one side of the protective cover 14, which is used to hang the valve structure on the trolley 10 or other tunnel construction equipment. Preferably, a plurality of plug-in slots 17 are provided on the hanging bracket 15 for convenient plug-in fixation. The setting of the protective cover 14 can protect the grouting construction on the one hand. For example, when a small amount of concrete slurry overflows due to a loose rotary seal, it can protect the surrounding construction personnel and prevent concrete from dripping; on the other hand, it is convenient for the installation of the valve structure.

[0053] Preferably, the protective cover 14 on one side of the suspension bracket 15 is formed as an open side, so as to facilitate the installation of the housing 1 etc. therein. Preferably, the protective cover 14 is also provided with a perforation, and at least part of the rotation execution unit 5 extends out of the protective cover 14 through the perforation, for example Fig.10 and Fig.11 As shown, the power unit 6 is a hydraulic cylinder, which is connected to the power seat 7 after passing through the through hole.

[0054] In a preferred example, both the grouting body 4 and the casting body 16 are pipe bodies.

[0055] The parts not described in detail in the second embodiment are the same or similar to the configuration of the first embodiment and will not be described again here.

[0056] Embodiment 3

[0057] Based on embodiments one and two, the utility model also relates to a tunnel concrete construction pouring system comprising the above-mentioned valve structure, which at least includes a conduit and one or more valve structures, wherein the multiple valve structures are connected through the conduit, or the valve structure is connected to the conduit. Preferably, each of the valve structures is installed on the trolley 10. For details, please refer to patent ZL202021793305.X, the entire content of which is incorporated herein by reference.

[0058] Finally, it should be noted that in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A valve structure, comprising a housing (1), a valve core structure (2) and a rotary actuator (5), characterized in that: A slurry discharge body (4) and a mounting portion (3) for mounting and fixing the housing (1) are formed on the housing (1); a pouring port (9) is formed in the middle of the mounting portion (3); a slurry discharge channel (401) is formed at the slurry discharge body (4); the valve core structure (2) comprises a valve core body (21) located in the housing (1) and an inlet pipe (22) extending outside the housing (1); a fluid channel (201) connected to the inlet pipe (22) is formed in the valve core body (21); the valve core structure (2) is connected to a rotary actuator unit (5); and the rotary actuator unit (5) can drive the valve core structure (2) to rotate around the rotation center axis of the inlet pipe (22) when in operation, thereby selectively placing the fluid channel (201) at one of the pouring port (9) and the slurry discharge channel (401).

2. A valve structure according to claim 1, characterized in that: The slurry discharge body (4) is a part of the outer shell (1), and the slurry discharge channel (401) is a slurry discharge opening provided on the outer shell (1); or, the slurry discharge body (4) is a slurry discharge pipe connected to the outer shell (1).

3. A valve structure according to any one of claims 1-2, characterized in that: A blocking surface (202) is formed on the valve core body (21), and a molding surface (402) is formed on the side of the mounting portion (3) facing the inner wall (12) of the tunnel surrounding rock. The blocking surface (202) and the molding surface (402) have the same surface shape, and when the fluid channel (201) and the slurry discharge channel (401) are connected, the blocking surface (202) is exactly blocked at the pouring port (9).

4. A valve structure according to claim 3, characterized in that: When the blocking surface (202) blocks the pouring port (9), the blocking surface (202) is coplanar with the molding surface (402).

5. A valve structure according to claim 4, characterized in that: The mounting portion (3) comprises a mounting plate (301) and a protrusion (302); the protrusion (302) is located on a side of the mounting plate (301) facing the inner wall (12) of the tunnel surrounding rock; the protrusion (302) is formed into a molding surface (402) on the side facing the inner wall (12) of the tunnel surrounding rock; and a pouring port (9) is formed on the molding surface (402).

6. A valve structure according to any one of claims 1-2, characterized in that: The rotary execution unit (5) comprises a rotary shaft (501), a force-applying portion (502) and a connecting portion (503); the rotary shaft (501) is connected to an end surface of the valve core body (21) on a side away from the inlet pipe (22) via the connecting portion (503); and the central axis of the rotary shaft (501) is the same as the rotation axis of the valve core body (21).

7. A valve structure according to claim 6, characterized in that: It also includes a support portion (8), which is arranged at the mounting portion (3) and spaced apart from the housing (1), and one end of the rotating shaft (501) away from the valve core body (21) is rotatably arranged on the support portion (8).

8. A valve structure, comprising a housing (1), a valve core structure (2), a rotary actuator (5) and a protective cover (14), characterized in that: The outer shell (1) is installed in the protective cover (14), and a slurry discharge body (4) and a casting body (16) extending to the outside of the protective cover (14) are formed on the outer shell (1). The interiors of the slurry discharge body (4) and the casting body (16) are respectively formed with a slurry discharge channel (401) and a casting channel connected to the interior of the outer shell (1). The valve core structure (2) includes a valve core body (21) located in the outer shell (1) and an inlet pipe (22) extending to the outside of the outer shell (1). The inlet pipe (22) extends and passes through the protective cover (14). A fluid channel (201) connected to the inlet pipe (22) is formed in the valve core body (21). The valve core structure (2) is connected to the rotary actuator unit (5). When working, the rotary actuator unit (5) can drive the valve core structure (2) to rotate around the rotation center axis of the inlet pipe (22) and selectively connect the fluid channel (201) to one of the casting channel and the slurry discharge channel (401).

9. A concrete pouring system, characterized in that: The concrete pouring system comprises one or more valve structures according to any one of claims 1-3 and 6-8.

10. A concrete pouring system, comprising one or more valve structures according to any one of claims 4 to 5, characterized in that: The valve structure is mounted on a trolley (10) via a mounting portion (3), the casting port (9) is arranged facing the inner wall (12) of the tunnel surrounding rock, the molding surface (402) is consistent with the outer wall surface of the trolley (10) facing the inner wall (12) of the tunnel surrounding rock, and the molding surface (402) is coplanar with the outer wall surface of the trolley (10).

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