Concrete pouring tool
By combining a T-joint with a plastic corrugated steel wire hose, the problems of low efficiency and inconvenience in the secondary lining concrete pouring of traditional steel pipes and rubber steel wire hoses are solved, realizing efficient and flexible concrete pouring operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-03
AI Technical Summary
During the secondary lining concrete pouring process, the use of steel pipes or rubber wire pipes leads to low work efficiency. Steel pipes are not easy to bend and it is inconvenient to change the pouring position, while rubber wire pipes are heavy and difficult for one person to replace, which brings inconvenience to the construction.
The system combines a T-joint with a plastic corrugated steel wire hose and secures it with clamps, enabling simultaneous pouring from both sides. It uses lightweight plastic corrugated steel wire hose to replace traditional pipes, and the clamp design enhances the clamping effect. The anti-slip ring improves stability, and the materials of the clamps and hoses are optimized to adapt to tunnel construction.
It improves construction efficiency, allowing one person to complete the pipe replacement work, flexibly adjust the pouring position, and is easy to use, thus enhancing the convenience and efficiency of construction.
Smart Images
Figure CN223964481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tunnel engineering construction technology, specifically to a concrete pouring tool. Background Technology
[0002] Secondary lining is a cast-in-place concrete or reinforced concrete lining constructed inside the initial support during tunnel construction, forming a composite lining together with the initial support. In contrast to the initial support, secondary lining refers to the inner lining built with concrete and other materials after the tunnel has undergone initial support. Its purpose is to reinforce the support, optimize the drainage system, improve the appearance, and facilitate the installation of communication, lighting, and monitoring facilities, thus meeting the requirements of modern highway tunnel construction.
[0003] Currently, in the process of secondary lining concrete pouring, steel pipes or rubber wire hoses are directly connected to the concrete pump inlet. Using a single steel pipe or rubber wire hose for secondary lining concrete pouring inside the tunnel leads to low work efficiency. Furthermore, the inflexibility of steel pipes makes it difficult to change the pouring position, causing inconvenience. Additionally, the weight of rubber wire hoses makes it difficult for one person to replace them, causing numerous inconveniences to the construction. Therefore, a concrete pouring tool is proposed. Utility Model Content
[0004] The present invention aims to solve the problems mentioned in the background art by providing a concrete pouring tool.
[0005] The specific technical solution is as follows:
[0006] A concrete pouring tool, comprising:
[0007] The tee connector has three connection ports, one of which is connected to the feed port of the concrete pump, and the other two connection ports are fitted with plastic corrugated steel wire hoses by clamping devices. The end of the plastic corrugated steel wire hose away from the tee connector is a free end.
[0008] Each of the clamping components includes two clamps, one end of which is hinged together and the other end of which is locked together by a locking structure. The two clamps locked together are fitted onto the plastic corrugated steel wire hose. The end of the plastic corrugated steel wire hose away from its free end is fitted onto the connection port and fixed to the connection port by the two clamps locked together.
[0009] In the aforementioned concrete pouring tool, each of the two clamps hinged together has an installation groove at one end, and a pin is fixedly installed in each of the two installation grooves. A connecting plate is movably fitted on both pins, and the connecting plate can rotate relative to the two pins.
[0010] In the aforementioned concrete pouring tool, each of the two clamps locked together by the locking structure has a fitting groove at one end. The locking structure includes a rotating shaft, a ball seat, a screw, and a wing nut. The rotating shaft is rotatably installed in one of the fitting grooves. The ball seat is fixedly fitted in the middle of the rotating shaft. One end of the screw is fixedly installed on the ball seat, and the other end of the screw can rotate around the rotating shaft to pass through the other fitting groove. The wing nut is threaded onto the screw. When the end of the screw away from the ball seat passes through the other fitting groove, the wing nut can be rotated to abut against the side of the fitting groove through which the screw passes.
[0011] In the aforementioned concrete pouring tool, both of the inner sides of the clamps are provided with arc-shaped grooves.
[0012] In the aforementioned concrete pouring tool, several anti-slip rings are integrally provided on the outer walls of the three connection ports.
[0013] In the aforementioned concrete pouring tool, the anti-slip ring is an annular protrusion structure, evenly distributed along the axial direction of the connection, with a spacing of 8-12mm between adjacent anti-slip rings, and the outer surface of the anti-slip ring is covered with a rubber layer, the rubber layer having a Shore hardness of 70-80A.
[0014] In the aforementioned concrete pouring tool, the feed port of the concrete pump is connected to the connection port via a plastic corrugated steel wire hose, and both ends of the plastic corrugated steel wire hose located between the feed port of the concrete pump and the connection port are fixed by the clamping device.
[0015] In the aforementioned concrete pouring tool, the wall of the plastic corrugated steel wire hose is made of high-density polyethylene (HDPE) and 304 stainless steel spiral wire. The diameter of the stainless steel spiral wire is 1.2-1.5 mm, the spiral spacing is 15-20 mm, and the burst pressure of the plastic corrugated steel wire hose is ≥3.2 MPa, and the bending radius is ≤500 mm.
[0016] The concrete pouring tool described above, wherein the clamp is made of aluminum alloy with a thickness of 3-5mm, the arc-shaped groove has a depth of 2-3mm, and the inner surface of the arc-shaped groove is provided with anti-slip texture, the roughness Ra of the anti-slip texture being 3.2-6.3μm.
[0017] In the aforementioned concrete pouring tool, the axes of the three connecting ports of the tee connector are symmetrically distributed in a Y-shape, the included angle between adjacent connecting ports is 120°±5°, and the inner wall of the tee connector is coated with a polyurethane wear-resistant coating with a coating thickness of 0.5-1.0mm.
[0018] This utility model has the following beneficial effects:
[0019] The concrete pouring tool provided by this utility model has a three-way connector. One port of the three-way connector is connected to the feed port of the concrete pump, and the other two ports are equipped with plastic corrugated steel wire hoses. During the secondary lining concrete pouring process, concrete can be poured on both sides of the tunnel at the same time, which can greatly improve work efficiency. At the same time, the use of lightweight plastic corrugated steel wire hoses instead of traditional steel pipes or rubber steel wire hoses allows one person to complete the pipe replacement work. It is also convenient to change the pouring position, making it easy to use and bringing great convenience to construction. Attached Figure Description
[0020] Figure 1 A schematic diagram of the structure of the concrete pouring tool provided in the embodiment of this utility model;
[0021] Figure 2 An exploded structural diagram of the concrete pouring tool provided in an embodiment of this utility model;
[0022] Figure 3 A schematic diagram of the structure of the tee connector in the concrete pouring tool provided in this embodiment of the utility model;
[0023] Figure 4 This is a schematic diagram of the clamping component in the concrete pouring tool provided in this embodiment of the utility model;
[0024] Figure 5 This is a structural schematic diagram of the clamping component in the concrete pouring tool provided in an embodiment of the present utility model from another perspective.
[0025] In the attached image:
[0026] 1. T-joint; 101. Connecting port; 102. Anti-slip ring;
[0027] 2. Plastic corrugated steel wire hose;
[0028] 3. Clamping parts; 301. Clamp; 302. Mounting groove; 303. Connecting plate; 304. Pin; 305. Arc groove; 306. Rotating shaft; 307. Ball seat; 308. Fitting groove; 309. Wing nut; 310. Screw. Detailed Implementation
[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0030] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; 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 refer to the internal communication of two components or the interaction between 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.
[0033] Example
[0034] The concrete pouring tools provided in this embodiment, such as Figures 1-5 As shown, it includes: a tee connector 1, which has three connection ports 101. One connection port 101 is connected to the material inlet of the concrete pump, and the other two connection ports 101 are each fitted with a plastic corrugated steel wire hose 2 by a clamping member 3. The end of the plastic corrugated steel wire hose 2 away from the tee connector 1 is a free end.
[0035] The concrete pouring tool using the above-mentioned technical solution, by setting a three-way connector 1, connects one of the connector ports 101 to the material inlet of the concrete pump, and installs plastic corrugated steel wire hoses 2 on the other two connector ports 101. During the secondary lining concrete pouring process, concrete can be poured on both sides of the tunnel at the same time, which can greatly improve work efficiency. At the same time, the use of lightweight plastic corrugated steel wire hoses 2 to replace traditional steel pipes or rubber steel wire hoses allows one person to complete the pipe replacement work, and it is also convenient to change the pouring position. It is easy to use and brings great convenience to the construction.
[0036] Each clamping component 3 includes two clamps 301. One end of the two clamps 301 is hinged together, and the other end of the two clamps 301 is locked together by a locking structure. The two clamps 301 locked together are fitted onto the plastic corrugated steel wire hose 2. The end of the plastic corrugated steel wire hose 2 away from its free end is fitted onto the connection port 101 and fixed together with the connection port 101 by the two clamps 301 locked together.
[0037] The specific scheme for hinged connection of one end of the two clamps 301 is as follows: each end of the two clamps 301 hinged together has an installation groove 302, and a pin 304 is fixedly installed in each of the two installation grooves 302. A connecting plate 303 is movably mounted on the two pins 304, and the connecting plate 303 can rotate relative to the two pins 304.
[0038] The two clamps 301 are locked together by a locking structure, each with a fitting groove 308 at one end. The locking structure includes a rotating shaft 306, a ball seat 307, a screw 310, and a wing nut 309. The rotating shaft 306 is rotatably installed in one of the fitting grooves 308. The ball seat 307 is fixedly fitted in the middle of the rotating shaft 306. One end of the screw 310 is fixedly installed on the ball seat 307, and the other end of the screw 310 can rotate around the rotating shaft 306 to pass through the other fitting groove 308. The wing nut 309 is threaded onto the screw 310. When the end of the screw 310 away from the ball seat 307 passes through the other fitting groove 308, the wing nut 309 can be rotated to abut against the side of the fitting groove 308 through which the screw 310 passes.
[0039] The clamping component 3 using the above-mentioned technical solution is relatively easy to use. Simply attach the end of the plastic corrugated steel wire hose 2 away from its free end to the connection port 101, then attach the two clamps 301 locked together to the plastic corrugated steel wire hose 2, and then pass the end of the screw 310 away from the ball seat 307 through another mounting groove 308. By rotating and tightening the wing nut 309, the wing nut 309 is pressed against the side of the mounting groove 308 through which the screw 310 passes. The clamps 301 locked together can then fix one end of the plastic corrugated steel wire hose 2 to the connection port 101, making it easy to assemble and disassemble the plastic corrugated steel wire hose 2 and further improving work efficiency.
[0040] To ensure the clamping effect of the two clamps 301, arc-shaped grooves 305 are provided on the inner side of the two clamps 301. The groove walls of the arc-shaped grooves 305 form two convex ribs that can tightly clamp the plastic corrugated steel wire hose 2, thereby ensuring the clamping effect of the clamping component 3 on the plastic corrugated steel wire hose 2.
[0041] To prevent the plastic corrugated steel wire hose 2 from easily detaching from the connection port 101, several anti-slip rings 102 are integrally provided on the outer side wall of each of the three connection ports 101. The anti-slip rings 102 are annular protrusions, evenly distributed along the axial direction of the connection port 101, with a spacing of 8-12mm between adjacent anti-slip rings 102. The outer surface of the anti-slip rings 102 is covered with a rubber layer, and the Shore hardness of the rubber layer is 70-80A.
[0042] To facilitate the connection between the concrete pump's inlet and the connection port 101, the concrete pump's inlet is connected to the connection port 101 via a plastic corrugated steel wire hose 2, and both ends of the plastic corrugated steel wire hose 2 located between the concrete pump's inlet and the connection port 101 are fixed with clamping parts 3.
[0043] To ensure the suitability of the plastic corrugated steel wire hose 2 for secondary lining concrete pouring, its wall is constructed from a composite of high-density polyethylene (HDPE) and 304 stainless steel spiral wire. The stainless steel spiral wire has a diameter of 1.2-1.5mm and a spiral spacing of 15-20mm. The hose has a burst pressure ≥3.2MPa and a bending radius ≤500mm. Its lightweight nature significantly improves operational convenience. Construction workers can easily move the hose and quickly adjust the pouring position, offering significantly improved ease of operation compared to traditional steel pipes. Furthermore, pipe replacement can be completed by a single person, an advantage not available with traditional rubber-coated steel wire hoses. In actual construction, workers can flexibly adjust the pouring position according to the tunnel's internal structure and pouring requirements, enhancing construction flexibility and efficiency.
[0044] Among them, the clamp 301 is made of aluminum alloy with a thickness of 3-5mm, the arc groove 305 has a depth of 2-3mm, and the inner surface of the arc groove 305 is provided with anti-slip texture with a roughness Ra of 3.2-6.3μm. By refining the material and structural design of the clamp 301, emphasizing lightweight (aluminum alloy) and anti-slip performance (roughness), the problem of "insufficient reliability of clamping parts" is solved.
[0045] The three connection ports 101 of the tee connector 1 are symmetrically distributed in a Y-shape, and the included angle between adjacent connection ports 101 is 120°±5°. The inner wall of the tee connector 1 is coated with a polyurethane wear-resistant coating with a coating thickness of 0.5-1.0mm. By limiting the geometric parameters (including the included angle and the coating) of the tee connector 1, the uniformity of concrete distribution and wear resistance can be optimized.
[0046] In summary, the concrete pouring tool provided in this embodiment, when in use, connects the feed port of the concrete pump to the connection port 101 via the plastic corrugated steel wire hose 2, and fixes both ends of the plastic corrugated steel wire hose 2 located between the feed port of the concrete pump and the connection port 101 with clamping pieces 3. One end of each of the two plastic corrugated steel wire hoses 2 is fitted onto the other two connection ports 101 of the tee connector 1, and then locked using the clamping pieces 3. After passing the end of the screw 310 away from the ball seat 307 through another fitting groove 308, it is then screwed... Tighten the wing nut 309 so that it abuts against the side of the mounting groove 308 through which the screw 310 passes. Then, use the clamp 301 to lock one end of the plastic corrugated steel wire hose 2 to the connection port 101. Concrete can be poured on both sides of the tunnel at the same time, which can greatly improve work efficiency. At the same time, the use of the lightweight plastic corrugated steel wire hose 2 to replace the traditional steel pipe or rubber steel wire hose allows one person to complete the pipe replacement work. It is also convenient to change the pouring position and is easy to use, bringing great convenience to the construction.
[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A concrete pouring tool, characterized in that, include: A three-way connector (1) has three connection ports (101), one of which is connected to the material inlet of a concrete pump, and the other two connection ports (101) are fitted with plastic corrugated steel wire hoses (2) by clamping parts (3). The end of the plastic corrugated steel wire hose (2) away from the three-way connector (1) is a free end. Each of the clamping components (3) includes two clamps (301), one end of which is hinged together and the other end of which is locked together by a locking structure. The two clamps (301) locked together are fitted onto the plastic corrugated steel wire hose (2). The end of the plastic corrugated steel wire hose (2) away from its free end is fitted onto the connection port (101) and fixed together with the connection port (101) by the two clamps (301) locked together.
2. The concrete pouring tool according to claim 1, characterized in that, Each of the two clamps (301) is hinged together and has a mounting groove (302) at one end. A pin (304) is fixedly installed in each of the two mounting grooves (302). A connecting plate (303) is movably fitted on both pins (304). The connecting plate (303) can rotate relative to the two pins (304).
3. The concrete pouring tool according to claim 2, characterized in that, Both clamps (301) are locked together by the locking structure, and each end has a fitting groove (308). The locking structure includes a rotating shaft (306), a ball seat (307), a screw (310), and a wing nut (309). The rotating shaft (306) is rotatably installed in one of the fitting grooves (308). The ball seat (307) is fixedly fitted in the middle of the rotating shaft (306). One end of the screw (310) is fixedly installed in the ball seat (308). 07), and the other end of the screw (310) can rotate around the pivot (306) to pass through another mounting slot (308), the wing nut (309) is threaded onto the screw (310), when the end of the screw (310) away from the ball seat (307) passes through another mounting slot (308), by rotating the wing nut (309) the wing nut (309) can be pressed against the side of the mounting slot (308) through which the screw (310) passes.
4. The concrete pouring tool according to claim 3, characterized in that, Both clamps (301) have arc-shaped grooves (305) on their inner sides.
5. The concrete pouring tool according to claim 1, characterized in that, Several anti-slip rings (102) are integrally provided on the outer side walls of the three connection ports (101).
6. The concrete pouring tool according to claim 5, characterized in that, The anti-slip ring (102) is an annular protrusion structure, which is evenly distributed along the axial direction of the connection port (101). The distance between adjacent anti-slip rings (102) is 8-12mm, and the outer surface of the anti-slip ring (102) is covered with a rubber layer with a Shore hardness of 70-80A.
7. The concrete pouring tool according to claim 1, characterized in that, The material inlet of the concrete pump is connected to the connection port (101) through a plastic corrugated steel wire hose (2). Both ends of the plastic corrugated steel wire hose (2) located between the material inlet of the concrete pump and the connection port (101) are fixed by the clamping member (3).
8. The concrete pouring tool according to claim 7, characterized in that: The wall of the plastic corrugated steel wire hose (2) is made of high-density polyethylene (HDPE) and 304 stainless steel spiral wire. The diameter of the stainless steel spiral wire is 1.2-1.5 mm, the spiral spacing is 15-20 mm, and the burst pressure of the plastic corrugated steel wire hose (2) is ≥3.2 MPa and the bending radius is ≤500 mm.
9. The concrete pouring tool according to claim 4, characterized in that: The clamp (301) is made of aluminum alloy with a thickness of 3-5mm. The arc-shaped groove (305) has a depth of 2-3mm, and the inner surface of the arc-shaped groove (305) is provided with anti-slip texture. The roughness Ra of the anti-slip texture is 3.2-6.3μm.
10. The concrete pouring tool according to claim 6, characterized in that: The three connection ports (101) of the tee connector (1) are symmetrically distributed in a Y-shape, and the included angle between adjacent connection ports (101) is 120°±5°. The inner wall of the tee connector (1) is coated with a polyurethane wear-resistant coating with a coating thickness of 0.5-1.0mm.