A deep pit concrete conveying device
By using a threaded shaft driven fixed seat and limit shaft design, combined with a motor-driven mixing rod and stable support structure, the problem of inaccurate concrete delivery in deep pits is solved, and efficient concrete delivery is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CSCEC STRAIT CONSTR & DEV
- Filing Date
- 2025-06-02
- Publication Date
- 2026-05-26
AI Technical Summary
Existing deep pit concrete conveying devices cannot be accurately deployed in deep pit environments, resulting in low conveying efficiency and concrete waste.
The fixed seat structure driven by the threaded shaft, combined with the design of the limit shaft and the motor-driven mixing rod, ensures the accuracy and uniformity of concrete delivery, and provides stable support through the moving wheels and threaded tapered rod.
It improves the accuracy and efficiency of concrete delivery, reduces waste, and ensures adaptability to construction in pits of varying depths and complexities.
Smart Images

Figure CN224281282U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically a deep pit concrete conveying device. Background Technology
[0002] Building construction refers to the production activities during the implementation phase of an engineering project. It is the process of building various types of buildings. Specifically, it includes multiple stages such as foundation construction, main structure construction, roof construction, and decoration construction. In projects such as deep foundation pits and underground tunnels, concrete transportation is a crucial part of the construction process.
[0003] However, existing deep pit concrete conveying equipment still has certain problems in use:
[0004] However, due to the special characteristics of deep pit environments, such as limited space, high operational difficulty, and numerous safety hazards, traditional concrete delivery methods typically involve spraying concrete from the pit opening into the deep pit. However, during the spraying process, the special characteristics of the deep pit environment make it impossible to accurately deliver the concrete into the deep pit, resulting in low concrete delivery efficiency and concrete waste.
[0005] Therefore, we propose a deep pit concrete conveying device to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this utility model is to provide a deep pit concrete conveying device to solve the problem mentioned in the background art that, due to the special characteristics of the deep pit environment, such as limited space, high operational difficulty, and numerous safety hazards, the traditional concrete conveying method usually involves spraying concrete from the pit opening into the deep pit. However, during the spraying process, the special characteristics of the deep pit environment make it impossible to accurately deliver the concrete into the deep pit, resulting in low concrete conveying efficiency and concrete waste.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a deep pit concrete conveying device, comprising a base and a first fixing rod:
[0008] A first fixing rod is fixed to one side of the base. A first sliding groove is provided on one side of the first fixing rod. A second motor is bolted to the top of the first fixing rod. A threaded shaft is movably connected to the output end of the second motor. A fixing seat is provided on one side of the first fixing rod. One end of the fixing seat is threadedly connected to the threaded shaft. The fixing seat and the first fixing rod form a sliding structure through the first sliding groove.
[0009] By adopting the above technical solution, the screw shaft is driven to rotate by the second motor, which can drive the fixed seat to move up and down along the middle of the first fixed rod, so as to provide power transmission for the subsequent up and down movement of the conveying hard pipe, and facilitate the adjustment of the conveying height according to the needs of the deep pit.
[0010] Preferably, a second fixing rod is fixed on one side of the base, a second sliding groove is provided on one side of the second fixing rod, a limiting shaft is fixed in the middle of the second sliding groove, and the other end of the fixing base is slidably connected to the limiting shaft.
[0011] By adopting the above technical solution, a limiting shaft is installed in the middle of the second fixing rod, and the fixing seat is slidably connected to the limiting shaft, which can give the fixing seat a certain limiting effect, thereby making the fixing seat stable when moving up and down, and ensuring the accurate delivery of concrete.
[0012] Preferably, a fixing frame is fixed above the base, a bearing box is fixed in the middle of the fixing frame, a conveying hose is connected to the bottom of one side of the bearing box, a pump body is fixedly connected to one end of the conveying hose, a conveying rigid pipe is fixed in the middle of the fixing base, and the other end of the conveying hose is connected to the conveying rigid pipe.
[0013] Using the above technical solution, the concrete is supported inside the support box, connected to the support box via a conveying hose, and the concrete inside the support box is extracted by a pump, then flows through the conveying hose to the inside of the conveying rigid pipe, and finally through the spraying point of the conveying rigid pipe to complete the concrete conveying operation.
[0014] Preferably, a first support plate is fixed to one side of the fixed base, a second support plate is fixed to one side of the fixed frame, and the conveying hose passes through the middle of the first and second support plates.
[0015] By adopting the above technical solution, two sets of support plates are installed on one side of the fixed seat and fixed frame. The two sets of support plates can support the conveying hose and maintain the stability of the conveying hose during the conveying process.
[0016] Preferably, a feed inlet is provided on one side of the bearing box, a first motor is bolted to the upper end of the bearing box, a drive shaft is movably connected to the output end of the first motor, a first stirring rod is fixed to the outer surface of the drive shaft, and three sets of the first stirring rod are provided. Three sets of second stirring rods are fixed to the bottom end of the drive shaft, and the second stirring rods are designed at an inclined angle.
[0017] By adopting the above technical solution, concrete is fed into the bearing box through the feed inlet. The first motor drives the transmission shaft and drives the first and second stirring rods to rotate, which can agitate the concrete inside the bearing box, prevent the concrete from settling inside the bearing box, and maintain the uniformity of the concrete.
[0018] Preferably, the base is bolted to the bottom with a movable wheel, and the four corners of the base are integrally extended with extension plates. A handle is provided on the top of the extension plate, and a threaded tapered rod is fixed to the bottom end of the handle. The threaded tapered rod is threadedly connected to the middle of the extension plate.
[0019] By adopting the above technical solution, the installation of movable wheels at the bottom of the base facilitates the mobility of the device, increases the adaptability of the construction site, and the installation of threaded cone rods at the four corners of the base allows the threaded cone rods to be rotated into the muddy ground of the construction site to increase the support for the device and maintain its stability during concrete transportation.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] 1. The threaded shaft in the middle of the first fixed rod is driven to rotate by the second motor. The rotation of the threaded shaft drives the fixed seat connected to it to move axially. The fixed seat is slidably connected to the limiting shaft in the middle of the second fixed rod. When the fixed seat moves, the limiting shaft can be used to limit and guide the movement of the fixed seat, ensuring that the fixed seat moves in the vertical direction. This allows the height of the fixed seat to be easily adjusted according to the needs of the deep pit, so as to adapt to the construction environment of deep pits of different depths and complexities, improve the efficiency of concrete conveying, and meet the needs of deep pit concrete use.
[0022] 2. Concrete is fed into the bearing box through the inlet. The first motor drives the transmission shaft to rotate, which in turn drives the first and second stirring rods fixed to its outer surface and bottom to rotate. This agitates the concrete inside the bearing box, preventing sedimentation and maintaining the uniformity of the concrete. This ensures good fluidity of the concrete and facilitates smooth pumping. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the front view of the main body structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the rear view of the main body structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the connection structure between the fixing base and the fixing rod of this utility model;
[0026] Figure 4 This is a cross-sectional structural diagram of the carrier box of this utility model;
[0027] Figure 5 This is a schematic diagram of the movable wheel and threaded tapered rod structure of this utility model.
[0028] In the diagram: 1. Base; 2. Fixing frame; 3. Bearing box; 4. Feed inlet; 5. First motor; 6. Drive shaft; 7. First stirring rod; 8. Second stirring rod; 9. Conveying hose; 10. Pump body; 11. First fixing rod; 12. First chute; 13. Second motor; 14. Threaded shaft; 15. Second fixing rod; 16. Second chute; 17. Limiting shaft; 18. Fixing seat; 19. Conveying rigid pipe; 20. First support plate; 21. Second support plate; 22. Moving wheel; 23. Extension plate; 24. Handle; 25. Threaded tapered rod. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0030] To address the problem of low concrete delivery efficiency caused by the unique characteristics of deep pit environments in existing technologies, which prevent accurate placement of concrete into the pit, the following solution is disclosed. Please refer to [link / reference]. Figures 1-5 This utility model provides a technical solution: a deep pit concrete conveying device, including a base 1 and a first fixed rod 11: the first fixed rod 11 is fixed on one side of the base 1, a first sliding groove 12 is provided on one side of the first fixed rod 11, a second motor 13 is bolted to the top of the first fixed rod 11, a threaded shaft 14 is movably connected to the output end of the second motor 13, a fixed seat 18 is provided on one side of the first fixed rod 11, and one end of the fixed seat 18 is threadedly connected to the threaded shaft 14, and the fixed seat 18 forms a sliding structure with the first fixed rod 11 through the first sliding groove 12; a second fixed rod 15 is fixed on one side of the base 1, a second sliding groove 16 is provided on one side of the second fixed rod 15, a limiting shaft 17 is fixed in the middle of the second sliding groove 16, and the other end of the fixed seat 18 is slidably connected to the limiting shaft 17.
[0031] The second motor 13 drives the threaded shaft 14 in the middle of the first fixed rod 11 to rotate. The rotation of the threaded shaft 14 then drives the fixed seat 18, which is threaded to it, to move axially. The fixed seat 18 is slidably connected to the limiting shaft 17 in the middle of the second fixed rod 15. When the fixed seat 18 moves, the limiting shaft 17 can limit and guide the movement of the fixed seat 18, ensuring that the fixed seat 18 moves in the vertical direction. This allows the height of the fixed seat 18 to be easily adjusted according to the needs of the deep pit, so as to adapt to the construction environment of deep pits of different depths and complexities, improve the efficiency of concrete conveying, and meet the needs of deep pit concrete use.
[0032] A mounting frame 2 is fixed above the base 1. A bearing box 3 is fixed in the middle of the mounting frame 2. A conveying hose 9 is connected to the bottom of one side of the bearing box 3. A pump body 10 is fixedly connected to one end of the conveying hose 9. A conveying rigid pipe 19 is fixed in the middle of the mounting base 18, and the other end of the conveying hose 9 is connected to the conveying rigid pipe 19. A first support plate 20 is fixed to one side of the mounting base 18, and a second support plate 21 is fixed to one side of the mounting frame 2. The conveying hose 9 passes through the middle of the first support plate 20 and the second support plate 21.
[0033] Concrete is loaded into the bearing box 3. The conveying hose 9 is connected to the bearing box 3 in a flow-through manner. The top of the conveying hose 9 is connected to the conveying rigid pipe 19. The concrete inside the bearing box 3 is extracted by the pump body 10 and flows through the conveying hose 9 to the conveying rigid pipe 19, and then sprayed out through the conveying rigid pipe 19. The conveying rigid pipe 19 is fixedly connected to the fixed seat 18, which allows the movement of the fixed seat 18 to drive the conveying rigid pipe 19 to rise and fall, so as to accurately put the conveying rigid pipe 19 into the deep pit. The relative height of the conveying rigid pipe 19 in the deep pit can be adjusted according to the concrete pouring requirements of the deep pit to improve adaptability. A first support plate 20 and a second support plate 21 are designed on the outside of the conveying hose 9 to provide a certain support for the conveying hose 9, ensuring that the conveying hose 9 will not shake or fall off due to external force when it is raised and lowered in conjunction with the conveying rigid pipe 19, thereby improving the quality of concrete conveying, improving the efficiency of concrete conveying, and improving the efficiency of equipment use.
[0034] A feed inlet 4 is provided on one side of the bearing box 3. A first motor 5 is bolted to the upper end of the bearing box 3. A transmission shaft 6 is movably connected to the output end of the first motor 5. A first stirring rod 7 is fixed on the outer surface of the transmission shaft 6, and three sets of the first stirring rod 7 are provided. Three sets of second stirring rods 8 are fixed to the bottom end of the transmission shaft 6, and the second stirring rods 8 are designed at an inclined angle.
[0035] Concrete is fed into the bearing box 3 through the feed inlet 4. The first motor 5 drives the transmission shaft 6 to rotate, which in turn drives the first stirring rod 7 and the second stirring rod 8 fixed on its outer surface and bottom to rotate, so as to agitate the concrete inside the bearing box 3. This prevents the concrete from settling inside the bearing box 3, maintains the uniformity of the concrete, and ensures that the concrete has good fluidity, thus ensuring the smooth progress of the pumping process.
[0036] The base 1 is bolted to the bottom of a movable wheel 22. The four corners of the base 1 are integrally extended with extension plates 23. A handle 24 is provided on the top of the extension plate 23. A threaded tapered rod 25 is fixed to the bottom of the handle 24, and the threaded tapered rod 25 is threadedly connected to the middle of the extension plate 23.
[0037] By installing four sets of moving wheels 22 at the bottom of the base 1, the device can be moved easily, improving its flexibility and adaptability. By inserting a threaded tapered rod 25 through the middle of the extension plate 23, the threaded tapered rod 25 can be rotated into the muddy soil of the construction site by the handle 24 before conveying concrete, which can increase the support of the device, maintain the stability of the device during concrete conveying, and provide stable support for the device.
[0038] Working Principle: For this type of deep pit concrete conveying device, firstly, the movable wheels 22 at the bottom of the base 1 enable flexible movement to adapt to different construction sites. When a fixed device is needed, the threaded cone rod 25 can be rotated by the handle 24 to penetrate into the muddy soil of the construction site, providing stable support for the device. Next, concrete is fed into the bearing box 3 through the feed inlet 4. At this time, the first motor 5 starts, driving the transmission shaft 6 to rotate, which in turn drives the first stirring rod 7 and the second stirring rod 8 to rotate within the bearing box 3, fully mixing the concrete to prevent sedimentation and maintain its uniformity and fluidity, preparing it for the subsequent pumping process. When concrete needs to be conveyed into the deep pit, the second motor 13 starts, driving the threaded shaft 14 to rotate within the first fixed rod 11. Since the fixed seat 18 is threadedly connected to the threaded shaft 14 and forms a sliding connection with the first fixed rod 11 through the first sliding groove 12, The fixed seat 18 moves along the axial direction of the threaded shaft 14 due to the moving structure. At the same time, the other end of the fixed seat 18 is slidably connected to the limiting shaft 17 in the middle of the second fixed rod 15. The limiting shaft 17 limits and guides the movement of the fixed seat 18, ensuring that it moves in the vertical direction. As the fixed seat 18 moves, the conveying hard pipe 19 fixedly connected to it will also rise and fall accordingly. One end of the conveying hose 9 is connected to the bearing box 3 and the other end is connected to the conveying hard pipe 19. After the pump body 10 is started, the concrete in the bearing box 3 is extracted and conveyed to the conveying hard pipe 19 through the conveying hose 9, and finally sprayed out from the conveying hard pipe 19 to realize the deep pit conveying of concrete. During this process, the first support plate 20 and the second support plate 21 on the outside of the conveying hose 9 provide support to prevent the conveying hose 9 from shaking or falling off due to external force during the lifting and adjusting, thus ensuring the quality and efficiency of concrete conveying.
[0039] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A deep pit concrete conveying device, comprising a base (1) and a first fixing rod (11), characterized in that: A first fixing rod (11) is fixed on one side of the base (1). A first sliding groove (12) is provided on one side of the first fixing rod (11). A second motor (13) is bolted to the top of the first fixing rod (11). A threaded shaft (14) is movably connected to the output end of the second motor (13). A fixing seat (18) is provided on one side of the first fixing rod (11). One end of the fixing seat (18) is threadedly connected to the threaded shaft (14). The fixing seat (18) and the first fixing rod (11) form a sliding structure through the first sliding groove (12).
2. The deep pit concrete conveying device according to claim 1, characterized in that: A second fixing rod (15) is fixed on one side of the base (1), and a second sliding groove (16) is provided on one side of the second fixing rod (15). A limiting shaft (17) is fixed in the middle of the second sliding groove (16), and the other end of the fixing seat (18) is slidably connected to the limiting shaft (17).
3. The deep pit concrete conveying device according to claim 1, characterized in that: A mounting frame (2) is fixed above the base (1), a bearing box (3) is fixed in the middle of the mounting frame (2), a conveying hose (9) is connected to one side bottom of the bearing box (3), a pump body (10) is fixedly connected to one end of the conveying hose (9), a conveying hard pipe (19) is fixed in the middle of the mounting base (18), and the other end of the conveying hose (9) is connected to the conveying hard pipe (19).
4. A deep pit concrete conveying device according to claim 3, characterized in that: The first support plate (20) is fixed on one side of the fixed base (18), and the second support plate (21) is fixed on one side of the fixed frame (2), and the delivery hose (9) passes through the middle of the first support plate (20) and the second support plate (21).
5. A deep pit concrete conveying device according to claim 3, characterized in that: A feed inlet (4) is provided on one side of the bearing box (3). A first motor (5) is bolted to the upper end of the bearing box (3). A transmission shaft (6) is movably connected to the output end of the first motor (5). A first stirring rod (7) is fixed on the outer surface of the transmission shaft (6). Three sets of the first stirring rod (7) are provided. Three sets of second stirring rods (8) are fixed at the bottom end of the transmission shaft (6). The second stirring rods (8) are designed with an inclined angle.
6. A deep pit concrete conveying device according to claim 1, characterized in that: The base (1) is bolted to the bottom of a movable wheel (22). An extension plate (23) extends integrally from the four corners of the base (1). A handle (24) is provided above the extension plate (23). A threaded cone rod (25) is fixed to the bottom of the handle (24), and the threaded cone rod (25) is threadedly connected to the middle of the extension plate (23).