Tunnel casting pipeline structure

Abstract

The utility model relates to a tunnel casting pipeline structure in the technical field of tunnel casting, which comprises a main casting pipe, a discharge end of the main casting pipe is provided with a three-way plate valve, and two discharge ends of the three-way plate valve are connected with branch casting pipes; the three-way plate valve comprises a feeding pipe, two symmetrically-arranged discharging pipes and a valve plate, the feeding pipe and the discharging pipes are of a Y-shaped structure, the middle of the valve plate is rotationally connected to the junction of the two discharging pipes, and elastic supporting pieces are arranged between the inner sides of the two discharging pipes and the outer section of the valve plate. Gear adsorption pieces are arranged on the inner sides of the two discharging pipes; compared with the prior art, the casting pipeline structure is additionally provided with the three-way plate valve and the branch casting pipes, so that the casting pipeline structure is provided with the two discharge ports, and the two discharge ports correspond to the template casting ports on the same side, so that the function of simultaneously casting the two side parts is realized, and the casting efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel casting, in particular to a tunnel casting pipeline structure. Background Art

[0002] With economic development and convenient transportation, more and more tunnels are being built. However, during the tunnel construction process, the construction process of the tunnel is to first do initial support, then lay a waterproof layer, and then use a trolley to support the formwork so that there is a casting space between the formwork and the waterproof layer (each formwork generally has three casting ports on both sides), and then cast into the casting space.

[0003] The existing casting system corresponding to the trolley includes a main casting pipe, which first casts the tunnel side A, then moves to the B side for casting; specifically, taking the casting of side A as an example, the worker controls the casting pipe to cast from the first template and the casting port from bottom to top, and then pulls the casting to cast the next template. This method has the following defects: 1. The casting pipe needs to be docked with each template six times (three times on the A side and three times on the B side), and the casting operation cannot be performed during the switching of the casting port, thus restricting the casting efficiency.

[0004] Therefore, it is necessary to design a tunnel casting pipeline structure that can cast on both sides of the template at the same time to improve the casting efficiency. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a tunnel casting pipeline structure.

[0006] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0007] A tunnel casting pipeline structure comprises a main casting pipe, a three-way plate valve is provided at the discharge end of the main casting pipe, and both discharge ends of the three-way plate valve are connected to branch casting pipes;

[0008] The three-way plate valve comprises a feed pipe, two symmetrically arranged discharge pipes and a valve plate, wherein the feed pipe and the discharge pipe are in a "Y"-shaped structure, the middle portion of the valve plate is rotatably connected to the intersection of the two discharge pipes, and elastic support members are provided between the inner sides of the two discharge pipes and the outer section of the valve plate, so that the inner section of the valve plate is located in the middle of the two discharge pipes, so that the two discharge pipes are in a passage posture; the inner sides of the two discharge pipes are provided with a gear adsorption member, so that the valve plate is in a posture of cutting off the passage of the corresponding discharge pipe;

[0009] The three-way plate valve also includes a driving device capable of driving the valve plate to swing.

[0010] Preferably, the gear adsorption component comprises a gear frame, and the gear frame is provided with a magnet capable of adhering to the surface of the outer section of the valve plate when the position of the gear frame corresponds to the outer section of the valve plate.

[0011] Preferably, the magnet is an electromagnet and is provided with a trigger switch.

[0012] Preferably, a mounting groove is provided in the middle of the magnet, and the trigger switch is provided in the mounting groove.

[0013] Preferably, the elastic support member comprises an arc spring arranged between the inner side of the discharge pipe and the outer section of the valve plate, and spring seats are provided at both ends of the arc spring.

[0014] Preferably, an articulated seat is provided at the outer end of the valve plate, and the driving device is a telescopic device with one end hinged to the articulated seat, and the other end of the driving device is correspondingly hinged to the discharge pipe.

[0015] Preferably, an outer end of the articulated seat is provided with an articulated portion facing the driving device, and the articulated portion is correspondingly articulated with the driving device.

[0016] Preferably, it also includes a fixed pipe arranged on the side of the template and connected to the three casting ports on the side of the template.

[0017] Preferably, the fixed pipeline includes a main pipeline, and the main pipeline is connected with three fixed branches at intervals from top to bottom, and the lowest fixed branch is connected to the lower end of the main pipeline, and the outer ends of the three fixed branches are connected one by one with the three casting ports on the corresponding sides of the template.

[0018] Preferably, the fixed branch pipe is arranged to be inclined up and down, and the end corresponding to the main pipe is the upper end.

[0019] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0020] 1. Compared with the prior art, a three-way plate valve and a supporting casting pipe are added, so that the casting pipeline structure has two discharge ports. The two discharge ports correspond to the casting ports of the template on the same side, realizing the function of simultaneous casting on both sides, thereby improving the casting efficiency;

[0021] 2. The specific structure of the three-way plate valve is set up. When the driving device is not running, the valve plate is supported by two elastic support members, and the valve plate is located in the middle of the two discharge pipes. At this time, the two discharge pipes are in a passage posture; when the casting of the casting port corresponding to one of the branch casting pipes 3 is completed, the driving device can be started to drive the inner section of the valve plate to move toward the discharge pipe corresponding to the branch casting pipe 3 until the inner section of the valve plate blocks the discharge pipe passage. At the same time, the outer section of the valve plate contacts the gear adsorbent and is adsorbed by the gear adsorbent;

[0022] 3. The magnet and the trigger switch are arranged so that after the casting system turns off the casting pump, the magnet is powered off, and the valve plate is reset under the action of the elastic support member, so that the two branch casting pipes 3 are in a passage posture;

[0023] 4. The setting of the fixed pipeline enables the support casting pipe to complete the casting operation of the side template only by docking once, thereby greatly improving the casting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the three-way plate valve in the utility model;

[0026] Figure 3 It is a schematic diagram of the passages of the two discharge joints of the three-way plate valve in the utility model;

[0027] Figure 4 It is a schematic diagram of one of the discharge joint passages in the three-way plate valve of the utility model;

[0028] Figure 5 It is a schematic diagram of another discharge joint passage in the three-way plate valve of the utility model.

[0029] In the figure: 1. main casting pipe; 2. three-way plate valve; 21. feed pipe; 22. discharge pipe; 23. valve plate; 24. elastic support member; 241. arc spring; 242. spring seat; 25. gear adsorption member; 251. gear frame; 252. magnet; 253. trigger switch; 26. hinge seat; 261. hinged part; 27. driving device; 3. branch casting pipe; 4. fixed pipeline; 41. main pipeline; 42. fixed branch pipe. DETAILED DESCRIPTION

[0030] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. to indicate directions or positional relationships, they only correspond to the drawings of the present application, in order to facilitate the description of the present invention; it should be understood that if there are terms such as "end", "side", "end part", "lateral", "lateral", "transverse", "longitudinal", etc. to indicate directions or positional relationships, they only correspond to the length and width of the corresponding parts, that is, "end part" indicates the head and tail areas in the length direction of the corresponding part, and "side part" indicates the head and tail areas in the width direction of the corresponding part; this is for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0031] Embodiment 1, in combination with the attached Figure 1-5 A tunnel casting pipeline structure includes a main casting pipe 1, a three-way plate valve 2 is provided at the discharge end of the main casting pipe 1, and both discharge ends of the three-way plate valve 2 are connected to branch casting pipes 3; compared with the prior art, this arrangement adds a three-way plate valve 2 and a branch casting pipe 3, so that the casting pipeline structure has two discharge ports, and the two discharge ports correspond to the template casting port on the same side, thereby realizing the function of simultaneous casting of both sides, thereby improving the casting efficiency.

[0032] The three-way plate valve 2 includes a feed pipe 21, two symmetrically arranged discharge pipes 22 and a valve plate 23. The feed pipe 21 and the discharge pipe 22 are in a "Y"-shaped structure. The middle part of the valve plate 23 is rotatably connected to the intersection of the two discharge pipes 22. An elastic support member 24 is provided between the inner side of the two discharge pipes 22 and the outer section of the valve plate 23, so that the inner section of the valve plate 23 is located in the middle of the two discharge pipes 22, so that the two discharge pipes 22 are in a passage posture; the inner side of the two discharge pipes 22 is provided with a gear adsorption member 25, so that the valve plate 23 is in a posture of cutting off the passage of the corresponding discharge pipe 22;

[0033] The three-way plate valve 2 further includes a driving device 27 capable of driving the valve plate 23 to swing.

[0034] During use, when the driving device 27 is not running, the valve plate 23 is supported by the two elastic support members 24, and the valve plate 23 is located in the middle position of the two discharge pipes 22. At this time, the two discharge pipes 22 are in a passage posture; when the casting of the casting port corresponding to one of the branch casting pipes 3 is completed, the driving device 27 can be started so that the driving device 27 drives the inner section of the valve plate 23 to swing toward the discharge pipe 22 corresponding to the branch casting pipe 3 until the inner section of the valve plate 23 blocks the passage of the discharge pipe 22. At the same time, the outer section of the valve plate 23 resists the gear adsorption member 25 and is adsorbed by the gear adsorption member 25.

[0035] Furthermore, the gear suction member 25 includes a gear frame 251 , and the gear frame 251 is provided with a magnet 252 that can fit and absorb the outer surface of the valve plate 23 when the position of the gear frame 251 corresponds to the outer section of the valve plate 23 .

[0036] As required, the magnet 252 can be a permanent magnet or an electromagnet.

[0037] Furthermore, the elastic support member 24 includes an arc spring 241 disposed between the inner side of the discharge pipe 22 and the outer section of the valve plate 23 , and spring seats 242 are disposed at both ends of the arc spring 241 .

[0038] According to the requirements, the driving device 27 is a telescopic device.

[0039] Furthermore, a hinge seat 26 is provided at the outer end of the valve plate 23, and the driving device 27 is hinged to the hinge seat 26 at one end and hinged to the discharge pipe 22 at the other end; as needed, the end of the driving device 27 away from the hinge seat 26 can be hinged to the discharge pipe 22 through a bracket, or can be hinged to the gear frame 251 on the same side.

[0040] As required, the outer end of the hinge seat 26 is provided with a hinge portion 261 facing the driving device 27 , and the hinge portion 261 is hinged to the driving device 27 ; this can effectively reduce the length of the driving device 27 .

[0041] In the example, in order to simplify the shape of the valve plate 23 and facilitate assembly, the inner sections of the feed pipe 21 and the discharge pipe 22 can be set as rectangular tubes, and the outer ends of the rectangular tubes are connected to the circular tube joints through square-to-circular joints, and connected to the corresponding casting pipes through the circular tube joints.

[0042] As needed, in order to reduce the gap between the valve plate 23 and the intersection of the two discharge pipes 22, the valve plate 23 is provided with semicircular protrusions on both sides corresponding to its rotation center, and the centers of the two semicircular protrusions are at the same position, so that when the valve plate 23 is rotated, the gap between the valve plate 23 and the intersection of the two discharge pipes 22 will not increase.

[0043] Embodiment 2: In embodiment 1, after blocking one of the branch casting pipes 3, if the passage of the other branch casting pipe 3 is not blocked, the driving device 27 needs to have three gears to restore the passage of the branch casting pipe 3. This has the disadvantage that the driving device 27 is relatively expensive. In order to solve this defect. Figure 1-5 , a tunnel casting pipeline structure, based on the first embodiment, the magnet 252 is an electromagnet, and a trigger switch 253 is provided;

[0044] As required, the trigger switch 253 can be disposed on the shift frame 251 , or on the magnet 252 , or at other appropriate locations.

[0045] When the trigger switch 253 is arranged on the magnet 252, a mounting groove is provided in the middle of the magnet 252, and the mounting groove is provided with the trigger switch 253; to ensure that the magnet 252 can fit and adsorb the valve plate 23, the trigger end of the trigger switch 253 extends out of the mounting groove and faces the outer section of the valve plate 23. When the valve plate 23 squeezes the trigger switch 253, the trigger end of the trigger switch 253 shrinks into the mounting groove. At this time, the magnet 252 is energized to generate magnetism and fit and adsorb the valve plate 23.

[0046] Specifically, the trigger switch 253 and the magnet 252 are connected to the casting system signal; that is, when the casting pump is turned off by the casting system, the magnet 252 is powered off, and the valve plate 23 is reset under the action of the elastic support 24. At this time, the driving device 27 can have two gears, thereby reducing the price of the driving device 27.

[0047] During casting, when the casting of the casting port corresponding to one of the branch casting pipes 3 is completed, the driving device 27 can be started so that the driving device 27 drives the inner section of the valve plate 23 to swing toward the discharge pipe 22 corresponding to the branch casting pipe 3 until the inner section of the valve plate 23 blocks the passage of the discharge pipe 22. At the same time, the outer section of the valve plate 23 contacts the gear adsorption component 25 and is adsorbed by the gear adsorption component 25 until the casting of the casting port corresponding to the other branch casting pipe 3 is completed. The casting pump is closed by the casting system. At this time, the casting port corresponding to the branch casting pipe 3 can be switched. At the same time, after the casting pump is closed by the casting system, the magnet 252 is powered off, and the valve plate 23 is reset under the action of the elastic support component 24, so that the two branch casting pipes 3 are in a passage posture.

[0048] In the third embodiment, since each side of the template has three casting ports, each branch casting pipe 3 in the first and second embodiments needs to be docked three times to complete the casting operation of the side template; in order to further improve the casting efficiency. Figure 1-5 A tunnel casting pipeline structure, based on embodiments one and two, further includes a fixed pipeline 4 arranged on the side of the template and connected to the three casting ports on the side of the template.

[0049] The fixed pipeline 4 includes a main pipeline 41, which is connected to three fixed branches 42 at intervals from top to bottom, and the lowest fixed branch 42 is connected to the lower end of the main pipeline 41, and the outer ends of the three fixed branches 42 are connected one by one to the three casting ports on the side of the corresponding template.

[0050] Specifically, the upper end of the main pipe 41 has a joint connected to the branch casting pipe 3. Since there are many joint structures in the prior art that can realize detachable connection between two pipes, the joint will not be described in detail here.

[0051] This arrangement allows casting after the branch casting pipe 3 is connected to the upper end of the main pipeline 41. At this time, concrete will be cast in sequence from the bottom to the top of the fixed branch pipe 42. Therefore, the branch casting pipe 3 can complete the casting operation of the side formwork after only one connection, thereby greatly improving the casting efficiency.

[0052] As required, the fixed branch pipe 42 is arranged to be tilted up and down, and the end corresponding to the main pipe 41 is the upper end.

[0053] As needed, the branch casting pipe 3 can be a flexible pipe throughout, that is, the shape can be slightly changed as needed; the branch casting pipe 3 can also have an inner section close to the three-way plate valve 2 as a hard pipe and an outer section as a flexible pipe. The specific setting is based on actual conditions and is not specifically limited here.

[0054] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A tunnel casting pipeline structure, characterized in that: It comprises a main casting pipe (1), a discharge end of the main casting pipe (1) is provided with a three-way plate valve (2), and both discharge ends of the three-way plate valve (2) are connected to branch casting pipes (3); The three-way plate valve (2) comprises a feed pipe (21), two symmetrically arranged discharge pipes (22) and a valve plate (23); the feed pipe (21) and the discharge pipe (22) are in a "Y"-shaped structure; the middle portion of the valve plate (23) is rotatably connected to the intersection of the two discharge pipes (22); elastic support members (24) are provided between the inner sides of the two discharge pipes (22) and the outer section of the valve plate (23), so that the inner section of the valve plate (23) is located in the middle of the two discharge pipes (22), so that the two discharge pipes (22) are in a passage posture; The inner sides of the two discharge pipes (22) are each provided with a stop adsorption member (25) so that the valve plate (23) is in a posture of cutting off the passage of the corresponding discharge pipe (22); The three-way plate valve (2) further comprises a driving device (27) capable of driving the valve plate (23) to swing.

2. A tunnel casting pipeline structure according to claim 1, characterized in that: The shift position adsorption component (25) comprises a shift position frame (251), and the shift position frame (251) is provided with a magnet (252) capable of adhering to the surface of the outer section of the valve plate (23) when the position of the shift position frame (251) corresponds to the outer section of the valve plate (23).

3. A tunnel casting pipeline structure according to claim 2, characterized in that: The magnet (252) is an electromagnet and is provided with a trigger switch (253).

4. A tunnel casting pipeline structure according to claim 3, characterized in that: A mounting groove is provided in the middle of the magnet (252), and the trigger switch (253) is provided in the mounting groove.

5. The tunnel casting pipeline structure according to claim 1, characterized in that: The elastic support member (24) comprises an arc spring (241) arranged between the inner side of the discharge pipe (22) and the outer section of the valve plate (23), and spring seats (242) are provided at both ends of the arc spring (241).

6. The tunnel casting pipeline structure according to claim 1, characterized in that: An articulated seat (26) is provided at the outer end of the valve plate (23); the driving device (27) is a telescopic device with one end articulated to the articulated seat (26); and the other end of the driving device (27) is correspondingly articulated to the discharge pipe (22).

7. A tunnel casting pipeline structure according to claim 6, characterized in that: An outer end of the hinge seat (26) is provided with a hinge portion (261) facing the drive device (27), and the hinge portion (261) is hinged correspondingly to the drive device (27).

8. The tunnel casting pipeline structure according to claim 1, characterized in that: It also includes a fixed pipe (4) arranged on the side of the template and connected to the three casting ports on the side of the template.

9. A tunnel casting pipeline structure according to claim 8, characterized in that: The fixed pipeline (4) comprises a main pipeline (41), the main pipeline (41) being connected to three fixed branch pipes (42) at intervals from top to bottom, the lowest fixed branch pipe (42) being connected to the lower end of the main pipeline (41), and the outer ends of the three fixed branch pipes (42) being connected one by one to three casting ports on the side of the corresponding template.

10. A tunnel casting pipeline structure according to claim 9, characterized in that: The fixed branch pipe (42) is arranged to be inclined up and down, and the end corresponding to the main pipe (41) is the upper end.

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