Commercial concrete delivery device

CN224717418UActive Publication Date: 2026-09-04SHANDONG HUAYI TIANYANG BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202522164808.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-14
Publication Date
2026-09-04
Estimated Expiration
2035-10-14

AI Technical Summary

Technical Problem

[0005]根据以上现有技术中的不足,本实用新型要解决的技术问题是:如何通过加装振捣棒,避免混凝土在缓冲箱内堆积,保证缓冲箱内的混凝土顺畅进入竖向输送管B中,防止混凝土堵塞输送管组件,适用于混凝土垂直输送,保证混凝土可以快速、连续的供应,为此提供一种商砼混凝土输送装置

Benefits of technology

本实用新型所述的商砼混凝土输送装置, 所述竖向输送管A和竖向输送管B交错设置,经竖向输送管A排出的混凝土会降落至缓冲箱内的滑落引导斜板上,经滑落引导斜板的缓冲作用,再进入竖向输送管B中,本装置能够对下落的混凝土起缓冲作用,将垂直落差分为两级,使混凝土在自重作用下缓慢流向下一高差级,整体降低了混凝土下落速度,避免出现离析现象,所述振捣棒的底端贯穿缓冲箱的顶板,并延伸至缓冲箱与竖向输送管B的连接处,在开启振捣棒的状态下,避免混凝土在缓冲箱内堆积,保证缓冲箱内的混凝土顺畅进入竖向输送管B中,防止混凝土堵塞输送管组件,适用于混凝土垂直输送,保证混凝土可以快速、连续的供应。

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Abstract

The utility model relates to a kind of commercial concrete conveying device, belong to concrete transfer technical field.The top of buffer box is connected with the vertical conveying pipe A being communicated with its inner cavity, the bottom of buffer box is connected with the vertical conveying pipe B being communicated with its inner cavity, the vertical conveying pipe A and vertical conveying pipe B are staggered arrangement, the bottom of buffer box is provided with the sliding guide inclined plate being cooperated with vertical conveying pipe A, the vibrating rod is installed on vertical conveying pipe A by vibrating rod fixing frame, the bottom end of vibrating rod penetrates the top plate of buffer box, and extend to the connecting place of buffer box and vertical conveying pipe B.The commercial concrete conveying device of the utility model, the vertical conveying pipe A and vertical conveying pipe B are staggered arrangement, buffer effect by sliding guide inclined plate, the overall reduction of concrete falling speed avoids the segregation phenomenon, is applicable to concrete vertical conveying, guarantee that concrete can be quickly, continuously supplied.
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Description

Technical Field

[0001] This utility model relates to a commercial concrete conveying device, belonging to the field of concrete transfer technology. Background Technology

[0002] In deep foundation pit construction, concrete needs to be mixed on the ground and vertically transported into the pit for pouring. As the depth increases, the free fall height and speed of the concrete increase, easily leading to segregation (mash-aggregate separation), which seriously affects the quality of the components. Therefore, concrete delivery technology becomes a critical control point in deep foundation pit construction.

[0003] Currently, using multi-section steel or plastic tremie pipes to buffer the falling concrete effectively reduces the risk of segregation. However, this technology is not comprehensive and has the following drawbacks: The connection between the buffer tank and the conveying pipe is not smooth, and concrete easily accumulates when entering the vertical conveying pipe from the buffer tank, leading to conveying interruptions. Blockages cannot guarantee continuous supply, affecting construction efficiency. These problems result in reduced concrete conveying efficiency and unstable construction quality.

[0004] To solve one of the above problems, there is an urgent need for a commercial concrete conveying device. Utility Model Content

[0005] Based on the shortcomings of the existing technology, the technical problem to be solved by this utility model is: how to avoid the accumulation of concrete in the buffer box by adding a vibrator, ensure that the concrete in the buffer box enters the vertical conveying pipe B smoothly, prevent concrete from clogging the conveying pipe assembly, and make it suitable for vertical concrete conveying, so as to ensure that concrete can be supplied quickly and continuously. Therefore, a commercial concrete conveying device is provided.

[0006] The commercial concrete conveying device of this utility model includes a vibrator and a vibrator drive motor. The power output end of the vibrator drive motor is connected to the vibrator through a transmission flexible shaft and hose. The device is characterized by further including a buffer box. The top of the buffer box is connected to a vertical conveying pipe A communicating with its inner cavity, and the bottom of the buffer box is connected to a vertical conveying pipe B communicating with its inner cavity. The vertical conveying pipes A and B are staggered. The bottom of the buffer box is provided with a sliding guide plate that cooperates with the vertical conveying pipe A. The vibrator is mounted on the vertical conveying pipe A through a vibrator fixing frame. The bottom end of the vibrator penetrates the top plate of the buffer box and extends to the connection point between the buffer box and the vertical conveying pipe B. The vertical conveying pipes A and B are staggered. Concrete discharged from vertical conveying pipe A falls onto the sliding guide ramp inside the buffer box. After being buffered by the sliding guide ramp, it then enters vertical conveying pipe B. This device can buffer the falling concrete, dividing the vertical drop into two or more levels, allowing the concrete to flow slowly to the next level of height difference under its own weight, thus reducing the overall falling speed of the concrete and preventing segregation. The bottom end of the vibrator penetrates through the top plate of the buffer box and extends to the connection between the buffer box and vertical conveying pipe B. When the vibrator is turned on, it prevents concrete from accumulating in the buffer box and ensures that the concrete in the buffer box flows smoothly into vertical conveying pipe B. It is suitable for vertical concrete conveying, preventing concrete from clogging the conveying pipe assembly and ensuring a fast and continuous supply of concrete.

[0007] In any of the above embodiments, preferably, the vibratory rod fixing frame includes an upper crossbeam and a lower crossbeam that are parallel to each other and spaced apart. The upper crossbeam is installed on the vertical conveying pipe A through a pipe clamp A at its end, and the lower crossbeam is installed on the vertical conveying pipe A through a pipe clamp B at its end. A sliding rod and a vertical connecting rod are vertically connected between the upper and lower crossbeams. A sliding sleeve is slidably installed on the sliding rod. Horizontal connecting rods A and B are provided on both sides of the sliding sleeve. The other end of the horizontal connecting rod A is connected to the vibratory rod through a pipe clamp C. A slider is detachably installed on the other end of the horizontal connecting rod B. A slide rail is provided along the length direction of the vertical connecting rod to slide in cooperation with the slider. A compression spring is sleeved on the sliding rod between the sliding sleeve and the lower crossbeam. The compression spring provides a thrust to push the horizontal connecting rod A, the sliding sleeve, and the horizontal connecting rod B away from the lower crossbeam. After the vibratory drive motor is turned on, it drives the vibratory rod through the transmission flexible shaft and hose. The vibratory rod generates high-frequency vibration waves through its internal vibration unit, which are transmitted to the concrete, making the concrete fluid. The vibratory rod prevents the concrete from accumulating in the buffer box, ensuring that the concrete in the buffer box flows smoothly into the vertical conveying pipe B. The compression spring supports the horizontal connecting rod A and horizontal connecting rod B. The horizontal connecting rod A positions the vibratory rod through the pipe clamp C. When the vibratory rod is working, the vibration of the vibratory rod on the vertical conveying pipe A is reduced through the coordinated operation of the compression spring, the slider, and the slide rail.

[0008] In any of the above embodiments, it is preferred that the slider is mounted on the end of the horizontal connecting rod B via a connecting bolt A.

[0009] In any of the above embodiments, it is preferred that the buffer box includes a top plate, a bottom plate and four sets of side plates, the top plate, the bottom plate and the four sets of side plates forming a box structure, the top plate is provided with a pipe interface A connected to the vertical conveying pipe A, and the bottom plate is provided with a pipe interface B connected to the vertical conveying pipe B.

[0010] In any of the above embodiments, it is preferred that the width of the sliding guide ramp is the same as the width of the bottom plate of the buffer box, the sliding guide ramp is welded and fixed inside the buffer box, its upper end is welded to the corresponding side plate, and its lower end is welded to the bottom plate.

[0011] In any of the above embodiments, it is preferred that a motor mounting platform is fixed on the upper crossbeam, and the vibratory drive motor is detachably mounted on the motor mounting platform.

[0012] In any of the above embodiments, it is preferred that a diagonal bracing member is installed between the motor mounting platform and the vertical conveying pipe A.

[0013] In any of the above embodiments, preferably, the inclined tension reinforcement includes a pipe clamp D fixed to the vertical conveying pipe A, a hinge seat A on the pipe clamp D, a hinge seat B on one side of the motor mounting platform, a screw, a threaded sleeve A hinged to the hinge seat A, and a threaded sleeve B hinged to the hinge seat B. One end of the screw has a threaded section A that mates with the threaded sleeve A, and the other end of the screw has a threaded section B that mates with the threaded sleeve B. The threads of threaded sections A and B have opposite directions of rotation. A handle is provided in the middle of the screw. By rotating the screw with the handle, the overall length of the inclined tension reinforcement can be changed, enhancing its applicability.

[0014] The inclined bracing enhances the stability of the motor mounting platform, which provides an installation position for the vibratory drive motor. The buffer box occupies little space, reducing the overall space required for the device.

[0015] In any of the above embodiments, it is preferred that the pipe clamp A includes a half-clamp unit A and a half-clamp unit B connected by clamp bolts, and the half-clamp unit A is welded to the pipe clamp C.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The commercial concrete conveying device of this utility model has vertical conveying pipes A and B arranged alternately. The concrete discharged from vertical conveying pipe A falls onto the sliding guide inclined plate in the buffer box. After being buffered by the sliding guide inclined plate, it enters vertical conveying pipe B. This device can buffer the falling concrete, dividing the vertical drop into two levels, allowing the concrete to flow slowly to the next level of height difference under its own weight, thus reducing the overall falling speed of the concrete and avoiding segregation. The bottom end of the vibrator penetrates through the top plate of the buffer box and extends to the connection between the buffer box and the vertical conveying pipe B. When the vibrator is turned on, it prevents concrete from accumulating in the buffer box, ensuring that the concrete in the buffer box flows smoothly into the vertical conveying pipe B, preventing concrete from clogging the conveying pipe assembly. It is suitable for vertical concrete conveying, ensuring a fast and continuous supply of concrete.

[0017] The commercial concrete conveying device of this utility model includes a compression spring that supports horizontal connecting rods A and B. Horizontal connecting rod A positions the vibrator rod via pipe clamp C. In the working state of the vibrator rod, the vibration of the vibrator rod on the vertical conveying pipe A is reduced through the coordinated operation of the compression spring, slider, and slide rail.

[0018] The commercial concrete conveying device of this utility model can change the total length of the inclined tie reinforcement by rotating the screw with the handle, thereby enhancing the applicability of the inclined tie reinforcement. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the vibratory rod fixing frame of this utility model; Figure 3 This is a structural diagram of the inclined tension reinforcement.

[0021] In the diagram: 1. Vertical conveying pipe A; 2. Buffer box; 2.1. Pipe interface A; 2.2. Pipe interface B; 3. Vertical conveying pipe B; 4. Vibrator; 5. Vibrator fixing frame; 5.1. Upper crossbeam; 5.2. Lower crossbeam; 5.3. Pipe clamp A; 5.4. Pipe clamp B; 5.5. Slide rod; 5.6. Vertical connecting rod; 5.7. Sliding sleeve; 5.8. Horizontal connecting rod A; 5.9. Horizontal connecting rod B; 5.10. Pipe clamp C; 5.11. Slider; 5.12. Slide rail; 5.13. Connecting bolt A; 5.14. Compression spring; 6. Vibration drive motor; 7. Transmission flexible shaft and hose; 8. Sliding guide inclined plate; 9. Motor mounting platform; 10. Inclined tension reinforcement; 11. Pipe clamp D; 12. Hinge seat A; 13. Hinge seat B; 14. Threaded sleeve A; 15. Screw; 16. Handle. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings: The present invention will be further described below through specific embodiments, but it is not intended to limit the present invention. 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.

[0023] Example 1, as Figure 1-2As shown, the commercial concrete conveying device includes a vibrator 4 and a vibrator drive motor 6. The power output end of the vibrator drive motor 6 is connected to the vibrator 4 through a transmission flexible shaft and hose 7. It also includes a buffer box 2. The top of the buffer box 2 is connected to a vertical conveying pipe A1 that communicates with its inner cavity. The bottom of the buffer box 2 is connected to a vertical conveying pipe B3 that communicates with its inner cavity. The vertical conveying pipes A1 and B3 are arranged alternately. The bottom of the buffer box 2 is provided with a sliding guide plate 8 that cooperates with the vertical conveying pipe A1. The vibrator 4 is installed on the vertical conveying pipe A1 through a vibrator fixing frame 5. The bottom end of the vibrator 4 penetrates the top plate of the buffer box 2 and extends to the connection between the buffer box 2 and the vertical conveying pipe B3. The vertical conveying pipes A1 and B3 are staggered. The concrete discharged from the vertical conveying pipe A1 falls onto the sliding guide plate 8 inside the buffer box 2. After being buffered by the sliding guide plate 8, it enters the vertical conveying pipe B3. This device can buffer the falling concrete, dividing the vertical drop into two or more levels, allowing the concrete to flow slowly to the next level of height difference under its own weight, thus reducing the overall falling speed of the concrete and preventing segregation. The bottom end of the vibrator 4 penetrates the top plate of the buffer box 2 and extends to the connection between the buffer box 2 and the vertical conveying pipe B3. When the vibrator 4 is turned on, it prevents concrete from accumulating in the buffer box 2, ensuring that the concrete in the buffer box 2 flows smoothly into the vertical conveying pipe B3, preventing concrete from clogging the conveying pipe assembly, and ensuring a rapid and continuous supply of concrete.

[0024] Example 2, as Figure 1-2 As shown, the commercial concrete conveying device includes a vibrator 4 and a vibrator drive motor 6. The power output end of the vibrator drive motor 6 is connected to the vibrator 4 through a transmission flexible shaft and hose 7. It also includes a buffer box 2. The top of the buffer box 2 is connected to a vertical conveying pipe A1 that communicates with its inner cavity. The bottom of the buffer box 2 is connected to a vertical conveying pipe B3 that communicates with its inner cavity. The vertical conveying pipes A1 and B3 are arranged alternately. The bottom of the buffer box 2 is provided with a sliding guide plate 8 that cooperates with the vertical conveying pipe A1. The vibrator 4 is installed on the vertical conveying pipe A1 through a vibrator fixing frame 5. The bottom end of the vibrator 4 penetrates the top plate of the buffer box 2 and extends to the connection between the buffer box 2 and the vertical conveying pipe B3.

[0025] Furthermore, the vibratory rod fixing frame 5 includes an upper crossbeam 5.1 and a lower crossbeam 5.2 that are parallel to each other and spaced apart. The upper crossbeam 5.1 is installed on the vertical conveying pipe A1 through a pipe clamp A5.3 at its end, and the lower crossbeam 5.2 is installed on the vertical conveying pipe A1 through a pipe clamp B5.4 at its end. A sliding rod 5.5 and a vertical connecting rod 5.6 are vertically connected between the upper crossbeam 5.1 and the lower crossbeam 5.2. A sliding sleeve 5.7 is slidably installed on the sliding rod 5.5, and horizontal connecting rods A5.8 and horizontal connecting rods are provided on both sides of the sliding sleeve 5.7. B5.9, the other end of the horizontal connecting rod A5.8 is connected to the vibrator 4 through the pipe clamp C5.10, and the other end of the horizontal connecting rod B5.9 is detachably equipped with a slider 5.11. A slide rail 5.12 is provided along the length of the vertical connecting rod 5.6 to slide in cooperation with the slider 5.11. A compression spring 5.14 is sleeved on the slide rod 5.5 between the sliding sleeve 5.7 and the lower crossbeam 5.2. The compression spring 5.14 provides a thrust to push the horizontal connecting rod A5.8, the sliding sleeve 5.7, and the horizontal connecting rod B5.9 away from the lower crossbeam 5.2.

[0026] After the vibratory drive motor 6 is turned on, it drives the vibratory rod 4 through the transmission flexible shaft hose 7. The vibratory rod generates high-frequency vibration waves through its internal vibration unit, which are transmitted to the concrete, making the concrete fluid. The vibratory rod 4 prevents the concrete from accumulating in the buffer box 2, ensuring that the concrete in the buffer box 2 flows smoothly into the vertical conveying pipe B3. The compression spring 5.14 supports the horizontal connecting rod A5.8 and the horizontal connecting rod B5.9. The horizontal connecting rod A5.8 positions the vibratory rod 4 through the pipe clamp C5.10. When the vibratory rod 4 is working, the vibration of the vibratory rod 4 on the vertical conveying pipe A1 is reduced through the coordinated cooperation of the compression spring 5.14, the slider 5.11, and the slide rail 5.12.

[0027] Furthermore, the slider 5.11 is mounted on the end of the horizontal connecting rod B5.9 via connecting bolt A5.13.

[0028] Furthermore, the buffer box 2 includes a top plate, a bottom plate, and four sets of side plates. The top plate, bottom plate, and four sets of side plates form a box structure. The top plate is provided with a pipe interface A2.1 connected to the vertical conveying pipe A1, and the bottom plate is provided with a pipe interface B2.2 connected to the vertical conveying pipe B3.

[0029] Furthermore, the width of the sliding guide ramp 8 is the same as the width of the bottom plate of the buffer box 2. The sliding guide ramp 8 is welded and fixed inside the buffer box 2, with its upper end welded to the corresponding side plate and its lower end welded to the bottom plate.

[0030] Furthermore, a motor mounting platform 9 is fixed on the upper crossbeam 5.1, and the vibratory drive motor 6 is detachably mounted on the motor mounting platform 9.

[0031] Furthermore, a diagonal bracing member is installed between the motor mounting platform 9 and the vertical conveying pipe A1.

[0032] Furthermore, referring to Figure 3 The inclined tensioning member 10 includes a pipe clamp D11 fixed on the vertical conveying pipe A1, a hinge seat A12 provided on the pipe clamp D11, a hinge seat B13 provided on one side of the motor mounting platform 9, and also includes a screw 16, a threaded sleeve A14 hinged to the hinge seat A12, and a threaded sleeve B15 hinged to the hinge seat B13. One end of the screw 16 is provided with a threaded section A that mates with the threaded sleeve A14, and the other end of the screw 16 is provided with a threaded section B that mates with the threaded sleeve B15. The thread directions of the threaded sections A and B are opposite. A handle 17 is provided in the middle of the screw 16.

[0033] By rotating the screw 16 through the handle 17, the overall length of the diagonal bracing member 10 can be changed, thereby enhancing its applicability.

[0034] Furthermore, the installation of the inclined tension reinforcement 10 enhances the stability of the motor mounting platform 9. The motor mounting platform 9 provides an installation position for the vibratory drive motor 6, and the buffer box occupies little space, thus reducing the space occupied by the device.

[0035] Furthermore, the pipe clamp A5.3 includes a half-clamp unit A and a half-clamp unit B connected by clamp bolts, and the half-clamp unit A is welded to the pipe clamp C5.10.

[0036] The commercial concrete conveying device of this utility model has vertical conveying pipes A and B arranged alternately. The concrete discharged from vertical conveying pipe A falls onto the sliding guide ramp inside the buffer box. After being buffered by the sliding guide ramp, it enters vertical conveying pipe B. This device can buffer the falling concrete, dividing the vertical drop into two levels, allowing the concrete to flow slowly to the next level of height difference under its own weight, thus reducing the overall falling speed of the concrete and effectively reducing the problem of concrete segregation during the conveying process. The bottom end of the vibrator penetrates through the top plate of the buffer box and extends to the connection between the buffer box and the vertical conveying pipe B. When the vibrator is turned on, it prevents concrete from accumulating in the buffer box, ensuring that the concrete in the buffer box flows smoothly into the vertical conveying pipe B, preventing concrete from clogging the conveying pipe assembly. It is suitable for vertical concrete conveying, ensuring a fast and continuous supply of concrete.

[0037] The commercial concrete conveying device of this utility model includes a compression spring that supports horizontal connecting rods A and B. Horizontal connecting rod A positions the vibrator rod via pipe clamp C. In the working state of the vibrator rod, the vibration of the vibrator rod on the vertical conveying pipe A is reduced through the coordinated operation of the compression spring, slider, and slide rail.

[0038] The commercial concrete conveying device of this utility model can change the total length of the inclined tie reinforcement by rotating the screw with the handle, thereby enhancing the applicability of the inclined tie reinforcement.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0040] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A commercial concrete conveying device, comprising a vibrator and a vibrator drive motor, wherein the power output end of the vibrator drive motor is connected to the vibrator via a transmission flexible shaft and hose, characterized in that: It also includes a buffer box, the top of which is connected to a vertical conveying pipe A that communicates with its inner cavity, and the bottom of which is connected to a vertical conveying pipe B that communicates with its inner cavity. The vertical conveying pipes A and B are arranged alternately. The bottom of the buffer box is provided with a sliding guide plate that cooperates with the vertical conveying pipe A. The vibrator is installed on the vertical conveying pipe A through a vibrator fixing frame. The bottom end of the vibrator penetrates the top plate of the buffer box and extends to the connection between the buffer box and the vertical conveying pipe B.

2. The commercial concrete conveying device according to claim 1, characterized in that, The vibratory rod fixing frame includes an upper crossbeam and a lower crossbeam that are parallel to each other and spaced apart. The upper crossbeam is installed on the vertical conveying pipe A through a pipe clamp A at its end, and the lower crossbeam is installed on the vertical conveying pipe A through a pipe clamp B at its end. A sliding rod and a vertical connecting rod are vertically connected between the upper and lower crossbeams. A sliding sleeve is slidably installed on the sliding rod. Horizontal connecting rods A and B are provided on both sides of the sliding sleeve. The other end of the horizontal connecting rod A is connected to the vibratory rod through a pipe clamp C. A slider is detachably installed on the other end of the horizontal connecting rod B. A slide rail is provided along the length of the vertical connecting rod to slide in cooperation with the slider. A compression spring is sleeved on the sliding rod between the sliding sleeve and the lower crossbeam. The compression spring provides a thrust to push the horizontal connecting rod A, the sliding sleeve, and the horizontal connecting rod B away from the lower crossbeam.

3. The commercial concrete conveying device according to claim 2, characterized in that, The slider is mounted on the end of the horizontal connecting rod B via connecting bolt A.

4. The commercial concrete conveying device according to claim 3, characterized in that, The buffer box includes a top plate, a bottom plate, and four sets of side plates. The top plate, bottom plate, and four sets of side plates form a box structure. The top plate is provided with a pipe interface A connected to the vertical conveying pipe A, and the bottom plate is provided with a pipe interface B connected to the vertical conveying pipe B.

5. The commercial concrete conveying device according to claim 4, characterized in that, The width of the sliding guide ramp is the same as the width of the bottom plate of the buffer box. The sliding guide ramp is welded and fixed inside the buffer box, with its upper end welded to the corresponding side plate and its lower end welded to the bottom plate.

6. The commercial concrete conveying device according to claim 5, characterized in that, A motor mounting platform is fixed on the upper crossbeam, and the vibratory drive motor is detachably mounted on the motor mounting platform.

7. The commercial concrete conveying device according to claim 6, characterized in that, A diagonal bracing member is installed between the motor mounting platform and the vertical conveying pipe A.

8. The commercial concrete conveying device according to claim 7, characterized in that, The inclined tensioning member includes a pipe clamp D fixed to the vertical conveying pipe A, a hinge seat A on the pipe clamp D, a hinge seat B on one side of the motor mounting platform, a screw, a threaded sleeve A hinged to the hinge seat A, and a threaded sleeve B hinged to the hinge seat B. One end of the screw is provided with a threaded section A that mates with the threaded sleeve A, and the other end of the screw is provided with a threaded section B that mates with the threaded sleeve B. The threads of the threaded sections A and B have opposite directions of rotation, and a handle is provided in the middle of the screw.

9. The commercial concrete conveying device according to claim 8, characterized in that, The pipe clamp A includes a half-clamp unit A and a half-clamp unit B connected by clamp bolts, and the half-clamp unit A is welded to the pipe clamp C.