A device for pouring and sliding a chute for a tunnel low parapet
By designing a sliding groove device for the low sidewalls of tunnels, the problem of inconvenient concrete pouring for the low sidewalls was solved, achieving a convenient and efficient pouring effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY FIFTH GROUP SECOND ENGINEERING CO LTD
- Filing Date
- 2025-09-20
- Publication Date
- 2026-07-14
AI Technical Summary
The tunnel's low sidewalls are located on the side of the arch bridge, making it difficult to pour concrete, and existing technology makes it difficult to effectively carry out the pouring operation.
Design a sliding chute device that includes a steel plate platform, small side wall formwork, and an inverted arch bridge. The device uses a chute seat and sliding wheels to achieve concrete sliding pouring, and uses a support riser, screw rod, and spiral cap adjustment device to adapt to different positions. The auxiliary support mechanism and hook connection mechanism ensure stability.
This facilitated the pouring of low sidewalls in tunnels, reduced the number of workers, and improved the quality and stability of concrete pouring.
Smart Images
Figure CN224496460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tunnel sidewall pouring technology, and more specifically, to a push-slide chute device for pouring concrete for tunnel sidewalls. Background Technology
[0002] The tunnel sidewall is a temporary structure used in tunnel construction, primarily for convenient formwork positioning and dismantling during secondary lining construction. Its height is typically 30 to 50 centimeters, forming the portion of the invert arch that extends above the top of the infill. Due to tunnel structure limitations and the constraints of the lining trolley, if the sides of the invert arch are flush with the infill surface, the bottom curved formwork of the secondary lining trolley may be too long or too short, making it difficult to achieve proper contact with the top of the infill surface. This hinders control of the correct position of the longitudinal wall base line and leads to difficulties in dismantling, often resulting in the concrete at the wall base being pried up and damaged. However, with the sidewall, the curved formwork only needs to be placed close to the edge of the sidewall to allow for a smooth and seamless connection between the invert arch and the secondary lining, making dismantling much easier. Therefore, tunnel sidewalls are often poured during tunnel construction. However, the sidewall is located on the side of the invert arch trestle, making pouring inconvenient, as the concrete from the concrete mixer truck on the invert arch trestle cannot easily slide into the pouring trough. To address this, we propose a sliding trough device for pouring concrete for tunnel sidewalls. Utility Model Content
[0003] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a push-slide chute device for concrete pouring of low sidewalls in tunnels.
[0004] To solve the above problems, this utility model adopts the following technical solution: a sliding chute device for concrete pouring of low sidewalls in tunnels, comprising a steel plate platform, a small sidewall outer formwork, and an inverted arch trestle. A traveling support is installed above the steel plate platform. Four sliding wheels are fixedly installed on the bottom surface of the traveling support. Two supporting vertical pipes are fixedly connected to the top surface of the traveling support. A first screw is fitted onto the top end of each of the two supporting vertical pipes. A first top rod is fixedly connected to the top end of each of the two first screws. A first top tube is fitted onto the outer side of each first top tube. Two top support rods are fixedly connected to the top surface of each of the first top support rods. A sliding chute seat is fixedly connected to the top surface of each of the two top support rods. The traveling support... A bottom horizontal tube is fixedly connected to the top surface of the bracket. A bottom horizontal rod is fitted onto the bottom horizontal tube. Supporting inclined tubes are fixedly connected to both ends of the bottom horizontal rod. A second screw is fitted onto the top of each of the two supporting inclined tubes. A second top rod is fixedly connected to the top of each of the two second screws. A second top tube is fitted onto the outer side of the second top rod. The top surface of the second top tube is connected to the bottom surface of the top support rod. An auxiliary support mechanism is provided on each of the two top support rods. A hook connection mechanism is provided on the sliding groove seat. An inner spiral cap is threaded onto the outer side of each of the first and second screws. A lever plate is fixedly connected to the side of each inner spiral cap. A connecting hook box is provided on the side of the outer formwork of the small side wall.
[0005] As a preferred embodiment of this utility model, the auxiliary support mechanism includes a third top rod fixedly connected to the bottom surface of the two top support rods, a third top tube sleeved on the outer side of the third top rod, a support diagonal rod fixedly connected to the bottom surface of the third top tube, and the bottom end of the support diagonal rod abutting against the lower side of the arch bridge.
[0006] As a preferred embodiment of this utility model, the hook connection mechanism includes a fourth jacking tube fixedly connected to the top surface of the slide seat, a fourth jacking rod sleeved on the inner side of the fourth jacking tube, and steel bar elbows fixedly connected to both ends of the fourth jacking rod, with the bottom ends of the two steel bar elbows sleeved on the connecting hook box.
[0007] As a preferred embodiment of this utility model, a first connecting pipe is fixedly connected between the two supporting risers.
[0008] As a preferred embodiment of this utility model, the top surface of the vehicle support is fixedly connected to two third connecting pipes, and the top ends of the two third connecting pipes are respectively attached to the sides of the two supporting uprights.
[0009] As a preferred embodiment of this utility model, a plurality of second connecting pipes are fixedly connected between the two supporting inclined pipes.
[0010] The advantages of this utility model are: (1) In this utility model, a steel plate platform is set on the side of the outer formwork of the small side wall, and the device is set on the steel plate platform. The concrete in the concrete truck on the arch bridge is slid to the formwork of the low side wall by the sliding seat above the device. The device is driven to move synchronously with the concrete truck by the sliding wheel below the device. This realizes the function of conveniently pouring the low side wall of the tunnel at different mileages. On the one hand, it can reduce the number of workers, and on the other hand, it can improve the quality of concrete pouring.
[0011] (2) In this utility model, the height and angle of the slide seat can be adjusted by the cooperation of the supporting riser, the first screw, the inner spiral cover, the supporting inclined pipe, the second screw, etc., so that the device can be adapted to the pouring of low side walls at different positions. In addition, the slide seat can be supported by the third top rod, the third top pipe and the supporting inclined rod. The slide seat can be stably connected by the cooperation between the fourth top rod, the steel bar bend and the connecting hook box. It has good practicality. Attached Figure Description
[0012] Figure 1 is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 is a schematic cross-sectional view of the present invention.
[0014] Figure 3 is a schematic diagram of the structure of the slide seat of this utility model.
[0015] Figure 4 is a schematic diagram of the structure of the inner screw cap of this utility model.
[0016] The following are the labeling instructions in the diagram: 1. Steel plate platform; 2. External formwork for small side walls; 3. Inverted arch trestle; 4. Crane support; 5. Sliding wheel; 6. Supporting riser; 7. First screw rod; 8. First jacking rod; 9. First jacking pipe; 10. Top support rod; 11. Slide seat; 12. Bottom horizontal pipe; 13. Bottom horizontal bar; 14. Supporting inclined pipe; 15. Second screw rod; 16. Second jacking rod; 17. Second jacking pipe; 18. Auxiliary support mechanism; 19. Hook connection mechanism; 20. Third jacking rod; 21. Third jacking pipe; 22. Supporting inclined bar; 23. Fourth jacking pipe; 24. Fourth jacking rod; 25. Rebar elbow; 26. Connecting hook box; 27. Inner spiral cover; 28. Actuating plate; 29. Third connecting pipe; 30. First connecting pipe; 31. Second connecting pipe. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1
[0020] As shown in Figures 1 to 4, a push-slide chute device for concrete pouring of low sidewalls in tunnels includes a steel plate platform 1, a small sidewall outer formwork 2, and an inverted arch trestle 3. The steel plate platform 1 can be made of 8mm thick steel plate and is installed on the small sidewall outer formwork 2 to form a push-slide chute traveling platform. A traveling support 4 is set above the steel plate platform 1. The traveling support 4 can be made of four Φ50 steel pipes welded into a 600*800mm support. Four sliding wheels 5 are fixedly installed on the bottom surface of the traveling support 4. Two supporting uprights 6 are fixedly connected to the top surface of the traveling support 4. The supporting uprights 6 can be Φ50mm steel pipes. The top of each of the two supporting uprights 6 is fitted with a first screw 7. The outer side of the first screw 7 is connected to the supporting upright 6. The inner walls of the two screw rods 7 are fitted together to ensure the stability of the first screw rod 7 as it extends and retracts on the support riser 6. The top ends of the two first screw rods 7 are fixedly connected to the first top rods 8. The outer side of the first top rods 8 is fitted with the first top tube 9. The top surface of the first top tube 9 is fixedly connected to the two top support rods 10. The top surface of the two top support rods 10 is fixedly connected to the sliding seat 11, which is made of steel plates. The top surface of the crane bracket 4 is fixedly connected to the bottom horizontal tube 12. The bottom horizontal tube 12 is fitted with the bottom horizontal rod 13. The bottom horizontal tube 12 can be a Φ50mm steel pipe, and the bottom horizontal rod 13 can be a Φ25mm round pipe. The inner wall of the bottom horizontal tube 12 is fitted with the outer side of the bottom horizontal rod 13. The two ends of the bottom horizontal rod 13 are fixedly connected to the support inclined tubes 14, which can be Φ50mm steel pipes. The top ends of the two support inclined tubes 14 are fitted with the second screw rods 15. The outer side of the second screw rods 15 is fitted with the support inclined tubes 14. The inner walls are fitted together to ensure the stability of the second screw 15 sliding on the supporting inclined tube 14. The top ends of the two second screws 15 are fixedly connected to the second top rods 16. The outer side of the second top rods 16 is fitted with the second top tube 17. The top surface of the second top tube 17 is connected to the bottom surface of the top support rod 10. The two top support rods 10 are provided with auxiliary support mechanisms 18. The slide seat 11 is provided with a hook connection mechanism 19. The outer sides of the first screw 7 and the second screw 15 are threaded with inner spiral caps 27. The sides of the inner spiral caps 27 are fixedly connected with lever plates 28. The side of the small side wall outer template 2 is provided with a connecting hook box 26. Example 2
[0021] Based on Embodiment 1, as shown in Figures 1 to 3, the auxiliary support mechanism 18 includes a third top rod 20 fixedly connected to the bottom surface of the two top support rods 10. A third top tube 21 is sleeved on the outer side of the third top rod 20. A support diagonal rod 22 is fixedly connected to the bottom surface of the third top tube 21. The bottom end of the support diagonal rod 22 abuts against the lower side of the arch bridge 3. The hook connection mechanism 19 includes a fourth top tube 23 fixedly connected to the top surface of the slide seat 11. A fourth top rod 24 is sleeved on the inner side of the fourth top tube 23. Rebar elbows 25 are fixedly connected to both ends of the fourth top rod 24. The bottom ends of the two rebar elbows 25 are sleeved on the connecting hook box 26. The cooperation of the rebar elbows 25 and the connecting hook box 26 connects the bottom end of the slide seat 11 to the outer formwork 2 of the small side wall, thereby fixing the slide seat 11. Example 3
[0022] Based on Embodiment 1 and Embodiment 2, as shown in Figure 1, a first connecting pipe 30 is fixedly connected between the two supporting uprights 6 to strengthen the strength between the two supporting uprights 6. Two third connecting pipes 29 are fixedly connected to the top surface of the crane bracket 4. The top ends of the two third connecting pipes 29 are respectively attached to the sides of the two supporting uprights 6 to strengthen the support of the supporting uprights 6. Multiple second connecting pipes 31 are fixedly connected between the two supporting inclined pipes 14.
[0023] It should be noted that this utility model is a sliding chute device for concrete pouring of low sidewalls in tunnels. In use, a steel plate platform 1 is first installed on the side of the outer formwork 2 of the low sidewall, with the sliding wheel 5 of the device positioned on the top surface of the steel plate platform 1. Then, workers lift the sliding chute seat 11 to adjust its height and angle. Simultaneously, the first screw 7 extends and retracts in the supporting riser 6, and the second screw 15 extends and retracts in the supporting inclined pipe 14. The angles of the supporting inclined pipe 14 and the second screw 15 rotate around the bottom crossbar 13 and the second top rod 16, placing the bottom end of the sliding chute seat 11 above the pouring position of the low sidewall, while the top end of the sliding chute seat 11 is located on the side of the inverted arch bridge 3. Then, the inner spiral caps 27 on the first screw 7 and the second screw 15 are rotated respectively, so that the bottom surface of the inner spiral cap 27 contacts the top ends of the supporting riser 6 and the supporting inclined pipe 14, respectively. The supporting riser 6, the inner spiral cap 27, the first screw 7, the first top rod 8, and the first jacking pipe 9 are used to adjust the sliding chute seat 11. The chute seat 11 is supported by the bottom horizontal pipe 12, bottom horizontal bar 13, supporting inclined pipe 14, inner spiral cover 27, second screw 15, second top rod 16, and second top pipe 17. The supporting inclined bar 22 is moved so that its bottom end rests against the lower side of the arch bridge 3, so that the bottom end of the steel bar bend 25 hooks onto the connecting hook box 26, thereby fixing the chute seat 11. Finally, the concrete truck moves on the arch bridge 3, and the concrete discharged from the concrete truck's discharge port falls onto the chute seat 11, allowing the concrete to slide along the chute seat 11 into the pouring trough of the low side wall. In addition, the concrete truck and the device move synchronously, thereby ensuring continuous pouring of the low side wall.
[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A sliding chute device for concrete pouring of short sidewalls in tunnels, comprising a steel plate platform (1), a small sidewall outer formwork (2), and an inverted arch trestle (3), characterized in that: A traveling support (4) is provided above the steel plate platform (1). Four sliding wheels (5) are fixedly installed on the bottom surface of the traveling support (4). Two support uprights (6) are fixedly connected to the top surface of the traveling support (4). A first screw (7) is sleeved on the top of each of the two support uprights (6). A first top rod (8) is fixedly connected to the top of the two first screws (7). A first top tube (9) is sleeved on the outside of the first top rod (8). Two top support rods (10) are fixedly connected to the top surface of the first top tube (9). A sliding groove seat (11) is fixedly connected to the top surface of the two top support rods (10). A bottom horizontal tube (12) is fixedly connected to the top surface of the traveling support (4). A bottom horizontal rod (13) is sleeved on the bottom horizontal tube (12). The two ends of the bottom horizontal rod (13) are... Each of the two support inclined tubes (14) is fixedly connected to a second screw (15) at the top of each of the two support inclined tubes (14). The top of each of the two second screws (15) is fixedly connected to a second top rod (16). The outer side of the second top rod (16) is fitted with a second top tube (17). The top surface of the second top tube (17) is connected to the bottom surface of the top support rod (10). The two top support rods (10) are provided with an auxiliary support mechanism (18). The slide seat (11) is provided with a hook connection mechanism (19). The outer side of the first screw (7) and the second screw (15) are threaded with an inner spiral cover (27). The side of the inner spiral cover (27) is fixedly connected with a lever plate (28). The side of the small side wall outer template (2) is provided with a connecting hook box (26).
2. The device for pushing and sliding chute for pouring concrete for low sidewalls in tunnels according to claim 1, characterized in that: The auxiliary support mechanism (18) includes a third top rod (20) fixedly connected to the bottom surface of the two top support rods (10). A third top tube (21) is sleeved on the outside of the third top rod (20). A support diagonal rod (22) is fixedly connected to the bottom surface of the third top tube (21). The bottom end of the support diagonal rod (22) abuts against the lower side of the arch bridge (3).
3. The device for pushing and sliding chute for concrete pouring of low sidewalls in tunnels according to claim 1, characterized in that: The hook connection mechanism (19) includes a fourth jacking pipe (23) fixedly connected to the top surface of the slide seat (11). A fourth jacking rod (24) is sleeved on the inner side of the fourth jacking pipe (23). Rebar elbows (25) are fixedly connected to both ends of the fourth jacking rod (24). The bottom ends of the two rebar elbows (25) are sleeved on the connecting hook box (26).
4. The device for pushing and sliding chute for pouring concrete for low sidewalls in tunnels according to claim 1, characterized in that: A first connecting pipe (30) is fixedly connected between the two supporting risers (6).
5. A sliding chute device for pouring concrete for low sidewalls in tunnels according to claim 1, characterized in that: The top surface of the crane bracket (4) is fixedly connected to two third connecting pipes (29), and the top ends of the two third connecting pipes (29) are respectively attached to the sides of the two supporting uprights (6).
6. A sliding chute device for pouring concrete for low sidewalls in tunnels according to claim 1, characterized in that: Multiple second connecting pipes (31) are fixedly connected between the two supporting inclined pipes (14).