Concrete distributing device for building construction
By installing a detachable guy wire assembly on the concrete placing device, and using a motor to drive the rope to automatically fix or release the lower bend pipe, the cumbersome operation and safety risks of the lower bend pipe during hoisting are solved, thus improving construction progress and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CITIC CONSTR
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-15
AI Technical Summary
In construction, fixing and unbending the lower bend of the concrete placing boom during hoisting is a cumbersome and safety-risk operation that affects construction progress and safety.
The system uses a detachable cable assembly on the support plate, including a support cylinder, a drive unit, and a drum. The motor drives the rope to tighten or loosen, automatically fixing or unbending the lower bend, eliminating the need for manual operation by workers.
This eliminates the need for workers to climb onto the scaffolding to manually fix the lower bend, reducing safety risks at the construction site and improving construction efficiency and safety.
Smart Images

Figure CN224244438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a concrete placing device for building construction. Background Technology
[0002] Concrete placing booms are commonly used on construction sites as concrete placement devices. These booms are the final equipment in the concrete pumping process, delivering pumped concrete through pipes to the formwork of the component to be poured. Before pouring, a crane is used to hoist the concrete placing boom to the pouring location. Because the upper and lower bends are rotatably connected, the lower bend needs to be secured with ropes during hoisting. One end of the rope is attached to the upper part of the frame, and the other end is attached to the lower bend to prevent it from rotating during hoisting and causing an accident. After being hoisted to the pouring location, workers need to climb onto the frame to untie the ropes, allowing the lower bend to rotate normally. Given the height of the concrete placing boom, untying the ropes is not safe for workers. Furthermore, after pouring, workers need to climb back onto the concrete placing boom to re-wrap the ropes and secure the lower bend. The entire process is cumbersome and dangerous. Utility Model Content
[0003] In view of the technical problems existing in the background art, the purpose of this utility model is to provide a concrete placing device for building construction that eliminates the need for workers to manually fix the lower bend pipe, thus protecting the safety of the construction site.
[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:
[0005] A concrete placing device for building construction includes a frame and an upper and lower curved pipe mounted on the frame. A support plate is mounted on the frame and positioned at the upper curved pipe. A pull wire assembly is detachably mounted on the support plate, and a support hole is provided on the support plate. The pull wire assembly includes a support cylinder, a driving component, and a drum. The driving component includes a connecting seat and a motor. One end of the motor and the connecting seat is detachably connected, and the other end of the connecting seat is provided with a connecting rod that connects to the inside of the support hole. One end of the motor is connected to the drum for driving the drum to rotate. The support cylinder is located on the outside of the drum, and a connecting component is wound around the drum. The connecting component extends from the support cylinder and connects to the lower curved pipe.
[0006] Preferably, the support plate is provided with a support ring groove, which is located on the outside of the support hole, and the support cylinder is inserted into the support ring groove.
[0007] Preferably, one end of the connector is provided with a motor slot, the motor is installed in the motor slot, and a connecting plate is provided above the motor slot.
[0008] Preferably, a connecting groove is provided at the center of the connecting plate, and a connecting hole is provided at one end of the drum. The connecting hole and the connecting groove are aligned, and the shaft end of the motor passes through the connecting groove and the connecting hole for connection.
[0009] Preferably, the support cylinder has a groove inside, and a bearing is rotatably installed in the groove.
[0010] Preferably, the support cylinder has a through hole inside, which passes through one end of the support cylinder and connects to the groove. The diameter of the through hole is smaller than the diameter of the groove. One end of the drum is provided with a rotating shaft, which passes through the through hole, extends into the groove, and connects to the bearing.
[0011] Preferably, the support cylinder is provided with holes, the lower bend is provided with a connecting ring, and the connector extends out from the holes, with one end connected to the connecting ring.
[0012] This utility model has the following advantages and beneficial effects:
[0013] I. In this utility model, the connecting component is a rope, which is wound around a drum. One end of the rope passes through the support drum and the lower bend pipe. The drum is driven by a motor. When the concrete placing machine is to be hoisted, the drive motor drives the drum to rotate, tightens the rope on the drum, and at the same time pulls the lower bend pipe to fix it. This eliminates the need for workers to climb onto the scaffold to manually connect the components, reducing the safety risks at the construction site.
[0014] Second, in this utility model, during the concrete placing process, the worker needs to continuously pull the lower bend pipe to rotate. When the concrete placing machine reaches the pouring position, the drive motor rotates and releases the rope on the drum. The worker can then pull the lower bend pipe normally. The lower bend pipe can be unconnected without the worker's manual operation, which speeds up the construction progress. Attached Figure Description
[0015] Figure 1 A three-dimensional drawing of a concrete placing device for building construction provided by this utility model;
[0016] Figure 2 An enlarged schematic diagram of the support plate structure of a concrete placing device for building construction provided by this utility model;
[0017] Figure 3 A cross-sectional view of the connecting seat of a concrete placing device for building construction provided by this utility model;
[0018] Figure 4 A cross-sectional view of the cable assembly connection of a concrete placing device for building construction provided by this utility model;
[0019] Figure 5A cross-sectional view of the bearing connection of a concrete placing device for building construction provided by this utility model;
[0020] Figure 6 A schematic diagram showing the hole locations of a concrete placing device for building construction, provided by this utility model.
[0021] Icons: 1-Concrete placing boom, 101-Frame, 102-Upper bend pipe, 103-Lower bend pipe, 104-Rope, 105-Connecting ring, 2-Support plate, 3-Guide wire assembly, 21-Support hole, 22-Support ring groove, 3-Guide wire assembly, 31-Connecting seat, 32-Connecting rod, 33-Motor groove, 34-Connecting plate, 35-Connecting groove, 4-Motor, 5-Drum, 51-Connecting hole, 52-Shaft, 6-Support cylinder, 61-Groove, 62-Through hole, 63-Hole, 7-Bearing, 8-Cover plate. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0024] Example
[0025] like Figure 1-6As shown, a concrete placing device for building construction includes a concrete placing machine 1. The concrete placing machine 1 includes a frame 101 and an upper curved pipe 102 and a lower curved pipe 103 mounted on the frame 101. The upper curved pipe 102 and the lower curved pipe 103 are rotatably connected at their ends. A support plate 2 is mounted on the frame 101 and is located at one end of the upper curved pipe 102. A pull wire assembly 3 is detachably mounted on the support plate 2. The support plate 2 has a support hole 21. The pull wire assembly 3 includes a support cylinder 6, a driving component, and a drum 5. The driving component includes a connecting seat 31 and a motor. 4. One end of the motor 4 and the connecting seat 31 are detachably connected by plugging. The other end of the connecting seat 31 is provided with a connecting rod 32. The connecting rod 32 and the support hole 21 are connected by threads. The connecting rod 32 is connected to the inside of the support hole 21. One end of the motor 4 is connected to the drum 5 to drive the drum 5 to rotate. The drum 5 is located inside the support cylinder 6. A connector is wound on the drum 5. The connector is a rope 104. The support cylinder 6 is provided with a hole 63. A connecting ring 105 is provided on the lower bend tube 103. The connector extends out from the hole 63 and is connected to the connecting ring 105 at one end.
[0026] like Figure 1 , 2 As shown in Figures 4 and 6, a support ring groove 22 is provided on the support plate 2. The support ring groove 22 is located outside the support hole 21. The support cylinder 6 is inserted into the support ring groove 22. The drive component and the drum 5 are located inside the support cylinder 6. The support ring groove 22 has a certain depth. The support ring groove 22 can not only support the support cylinder 6, but the support cylinder 6 can also rotate within the support ring groove 22. When the worker pulls the lower bend pipe 103, the rope 104 pulls the support cylinder 6, causing the support cylinder 6 to move in the rotation direction of the lower bend pipe 103.
[0027] like Figure 1-4As shown, a motor slot 33 is provided on the connecting seat 31. The shape of the motor slot 33 is the same as that of the motor 4. The motor 4 is detachably installed in the motor slot 33, which supports the motor 4. A connecting plate 34 is detachably installed above the motor slot 33. The connecting plate 34 and the connecting seat 31 are connected by bolts. A connecting groove 35 is provided at the center of the connecting plate 34. When the motor 4 is placed in the motor slot 33, the connecting plate 34 and the connecting seat 31 are connected, and the motor 4 is fixed in the motor slot 33. The shaft end of the motor 4 is connected to the connecting plate 34. The drum 5 extends out from the groove 35 and has a connecting hole 51 at one end. The drum 5 is supported above the connecting plate 34. The connecting hole 51 and the connecting groove 35 are aligned. The shaft end of the motor 4 passes through the connecting groove 35 and the connecting hole 51 and is connected to drive the motor 4 to rotate. The motor 4 can drive the drum 5 to rotate, thereby achieving the tightening and loosening effect of the rope 104. The connecting seat 31 and the support cylinder 6 are respectively provided with wire holes. Wires are passed through the wire holes and connected to the motor 4. The power supply of the motor 4 is located outside the concrete placing machine 1, and the power supply is provided to the motor 4 through the wires.
[0028] like Figure 4 , 5 As shown, a groove 61 is provided at the upper end of the support cylinder 6, and a bearing 7 is rotatably installed in the groove 61. A through hole 62 is provided inside the support cylinder 6, which passes through one end of the support cylinder 6 and connects to the groove 61. The diameter of the through hole 62 is smaller than the diameter of the groove 61. The bearing 7 is supported in the groove 61 and will not fall out of the groove 61. A cover plate 8 is detachably provided at the upper end of the support cylinder 6 by bolts. The cover plate 8 closes the upper end of the support cylinder 6 and also connects the bearing 7 in the groove. When installing or removing the bearing 7, the cover plate 8 can be directly removed or connected from the upper end of the support cylinder 6. A rotating shaft 52 is provided at one end of the drum 5. The rotating shaft 52 passes through the through hole 62 and extends into the groove 61 to connect with the bearing 7. The drum 5 is connected to the support cylinder 6 through the bearing 7. The support cylinder 6 can further enhance the stability of the drum 5. At the same time, the bearing 7 avoids the direct connection between the drum 5 and the support cylinder 6. The connection method of the bearing 7 and the drum 5 can reduce the friction loss of the drum 5.
[0029] When the concrete placing boom 1 needs to lift concrete, first adjust the motor 4. The motor 4 drives the drum 5 to rotate, tightening the rope 104. The rope 104 pulls the lower bend 103 taut, facilitating lifting and preventing the lower bend 103 from swaying during lifting. When the concrete is lifted to the pouring position, the drive motor 4 reverses, and the drum 5 loosens the rope 104. At this time, the worker can pull the lower bend 103 to rotate it to the pouring position. During the rotation of the lower bend 103, the rope 104 on the drum 5 is continuously pulled. Pulling out of the hole 63, the rope 104 can simultaneously pull the support cylinder 6 to rotate in the support ring groove 22 along with the direction of the lower bend pipe 103, without affecting the workers' normal pouring work. After the pouring is completed, the lower bend pipe 103 is pulled back to the initial position, the drive motor 4 rotates, and the drum 5 tightens the rope 104 again. The workers can untie the connection of the lower pipe without manual operation, and at the same time, there is no need to climb the scaffold 101 when fixing it, which not only speeds up the construction progress, but also avoids the occurrence of safety accidents.
[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A concrete placing device for building construction, comprising a frame (101) and an upper curved pipe (102) and a lower curved pipe (103) disposed on the frame (101), characterized in that, A support plate (2) is provided on the frame (101). The support plate (2) is located at the upper bend (102). A pull wire assembly (3) is detachably provided on the support plate (2). A support hole (21) is provided on the support plate (2). The pull wire assembly (3) includes a support cylinder (6), a driving component, and a drum (5). The driving component includes a connecting seat (31) and a motor (4). One end of the motor (4) is detachably connected to the connecting seat (31). The other end of the connecting seat (31) is provided with a connecting rod (32). The connecting rod (32) is connected to the inside of the support hole (21). One end of the motor (4) is connected to the drum (5) to drive the drum (5) to rotate. The support cylinder (6) is located on the outside of the drum (5). A connecting component is wound on the drum (5). The connecting component extends out from the support cylinder (6) and connects to the lower bend (103).
2. The concrete placing device for building construction according to claim 1, characterized in that: The support plate (2) is provided with a support ring groove (22), which is located on the outside of the support hole (21), and the support cylinder (6) is inserted into the support ring groove (22).
3. A concrete placing device for building construction according to claim 1, characterized in that: The connecting seat (31) is provided with a motor slot (33), the motor (4) is disposed in the motor slot (33), and a connecting plate (34) is provided above the motor slot (33).
4. A concrete placing device for building construction according to claim 3, characterized in that: A connecting groove (35) is provided at the center of the connecting plate (34), and a connecting hole (51) is provided at one end of the drum (5). The connecting hole (51) and the connecting groove (35) are aligned. The shaft end of the motor (4) passes through the connecting groove (35) and the connecting hole (51) for connection.
5. A concrete placing device for building construction according to claim 1, characterized in that: The support cylinder (6) has a groove (61) inside, and a bearing (7) is rotatably installed in the groove (61).
6. A concrete placing device for building construction according to claim 5, characterized in that: The support cylinder (6) has a through hole (62) inside. The through hole (62) passes through one end of the support cylinder (6) and is connected to the groove (61). The diameter of the through hole (62) is smaller than the diameter of the groove (61). One end of the drum (5) is provided with a rotating shaft (52). The rotating shaft (52) passes through the through hole (62) and extends into the groove (61) and is connected to the bearing (7).
7. A concrete placing device for building construction according to claim 1, characterized in that: The support cylinder (6) is provided with a hole (63), and the lower bend (103) is provided with a connecting ring (105). The connector extends out from the hole (63) and one end is connected to the connecting ring (105).