Novel concrete conveying pipe with speed reducing ribs

Abstract

The utility model discloses a novel concrete delivery pipe with deceleration ribs, which comprises a concrete pumping vehicle, the concrete pumping vehicle is arranged on the ground and is connected with a vertical transportation steel pipe through a pumping connection pipe, the vertical transportation steel pipe is fixed on the side wall of a vertical structure through a side wall fixing clamp, and the lower end of the vertical transportation steel pipe is connected with a concrete pouring operation pipe; the vertical transportation steel pipe is of a multi-section spliced structure, and a plurality of speed reduction ribs are arranged on the inner wall of the vertical transportation steel pipe. The steel bars are welded on the inner wall of the steel pipe in a full-length mode, friction force between pumped concrete fluid and the pipeline is increased through the concave-convex face formed by the steel bars, and compared with a conventional concrete conveying pipe, the falling speed of the pumped concrete fluid in the pipeline can be effectively reduced, and the service life of the concrete conveying pipe is prolonged. Therefore, the problem of aggregate segregation of the pumped concrete fluid under the condition of a large drop distance can be effectively avoided, potential safety hazards caused by rapid impact of the pumped concrete fluid can be effectively eliminated, and the device is particularly suitable for concrete pouring construction with a great vertical drop.

Description

Technical Field

[0001] The utility model relates to a novel concrete conveying pipe with a deceleration rib, belonging to the technical field of concrete pouring construction equipment. Background Art

[0002] In the structural pouring construction of vertical structures such as long tunnel ventilation shafts, the process of pumping concrete from the ground to the bottom of the shaft needs to overcome a huge height difference. Conventional concrete pumping pipes cannot effectively limit the acceleration process of pumped concrete as the height difference increases. The high-speed fall of pumped concrete can easily lead to practical problems such as concrete aggregate separation and rapid concrete impact, which in turn has an adverse effect on the quality of concrete pouring and construction safety. Since the construction of large vertical drop distance pumped concrete is relatively rare, there is currently a lack of effective countermeasures to solve the above objective problems. In view of the above situation, combined with the flow characteristics of pumped concrete and the layout points of concrete pumping pipes, it is of great practical significance to provide a new type of concrete delivery pipe with deceleration ribs. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a new concrete conveying pipe with deceleration ribs, so as to at least solve the problems mentioned in the background technology.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A new type of concrete conveying pipe with deceleration ribs includes a concrete pumping truck, which is arranged on the ground and connected to a vertical transport steel pipe through a pumping connecting pipe. The vertical transport steel pipe is fixed to the side wall of a vertical structure through a side wall fixing clip, and the lower end is connected to a concrete pouring operation pipe; the vertical transport steel pipe is a multi-section spliced ​​structure, and a plurality of deceleration ribs are arranged on the inner wall of the vertical transport steel pipe.

[0006] Furthermore, the speed reduction ribs are evenly distributed in a ring shape on the inner wall of the vertical transport steel pipe, are arranged along the entire length of the vertical transport steel pipe, and both ends are 1-2 cm shorter than the vertical transport steel pipe.

[0007] Furthermore, the deceleration rib is a ribbed straightened steel bar with a diameter of 12 to 16 mm.

[0008] Furthermore, the speed reducer is fixed to the inner wall of the vertical transport steel pipe by end welding, and the welding length of each end should not be shorter than 10 cm.

[0009] Furthermore, connecting flanges are provided at both ends of the vertical transport steel pipe, connecting bolt holes are evenly distributed on the connecting flanges, and two adjacent steel pipe sections are bolted together through the connecting flanges.

[0010] Furthermore, marking scales for installation and positioning of the speed reducer are also provided on the connecting flange.

[0011] Furthermore, the marking scale is a recessed notch, which is arranged on the inner side of the connecting flange and the setting position corresponds to the connecting bolt hole.

[0012] Furthermore, 3 to 4 concave notches are correspondingly arranged between the hole distances of two adjacent connecting bolt holes to ensure that after any connecting bolt hole of the two connecting flanges is centered, all marking scales are aligned one by one, and the setting position of the speed reduction rib corresponds one by one to the marking scale.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model welds steel bars arranged throughout the length of the inner wall of the steel pipe, and then utilizes the concave and convex surfaces formed by the steel bars to increase the friction between the pumped concrete fluid and the pipe. Compared with conventional concrete delivery pipes, the utility model can effectively slow down the falling speed of the pumped concrete fluid in the pipe, thereby effectively avoiding the problem of aggregate segregation of the pumped concrete fluid under the condition of a large drop distance, and effectively eliminating the safety hazards caused by the rapid impact of the pumped concrete fluid. It is particularly suitable for concrete pouring construction with a large vertical drop.

[0015] (2) The utility model assists the positioning welding of the speed reducer by marking the welding position of the steel bars on the pipeline connection flange, and controls the connection posture of the pipeline connection flange by connecting bolt holes, thereby ensuring that the positions of the speed reducers on the inner wall of any pipeline correspond one to one after the pipeline is connected, and effectively avoiding the concrete blockage problem caused by the misalignment of the speed reducers.

[0016] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, in which:

[0018] Figure 1 A schematic diagram of the structure of a new concrete delivery pipe with deceleration ribs provided by the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of vertically transporting steel pipes;

[0020] Figure 3It is a schematic diagram of the splicing structure of vertically transported steel pipes;

[0021] Figure 4 The cross-sectional diagram of the vertically transported steel pipe (without deceleration ribs);

[0022] Figure 5 It is a cross-sectional schematic diagram of vertically transported steel pipes (with speed reduction ribs).

[0023] In the figure: 1. Concrete pumping truck; 2. Pumping connecting pipe; 3. Side wall fixing card; 4. Vertical transport steel pipe; 5. Concrete pouring operation pipe; 6. Connecting flange; 7. Connecting bolt hole; 8. Speed ​​reducer; 9. Marking scale. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1-5 As shown, a new type of concrete delivery pipe with deceleration ribs includes a concrete pumping truck 1, which is set on the ground and connected to a vertical transport steel pipe 4 through a pumping connection pipe 2. The vertical transport steel pipe 4 is fixed to the side wall of the vertical structure through a side wall fixing clamp 3, and the lower end is connected to a concrete pouring operation pipe 5. The vertical transport steel pipe 4 is a multi-section spliced ​​structure, and a plurality of deceleration ribs 8 are arranged on the inner wall of the vertical transport steel pipe 4.

[0027] The deceleration ribs 8 are made of straightened ribbed steel bars with a diameter of 12 to 16 mm, which are evenly distributed on the inner wall of the vertical transport steel pipe 4 and arranged along the length of the vertical transport steel pipe 4. The two ends are 1-2 cm shorter than the vertical transport steel pipe 4 to ensure that adjacent vertical transport steel pipes 4 can be spliced ​​normally and avoid interference in assembly. The deceleration ribs 8 are fixed to the inner wall of the vertical transport steel pipe 4 by end welding, and the welding length of each end should not be shorter than 10 cm.

[0028] Connecting flanges 6 are provided at both ends of the vertical transport steel pipe 4 , connecting bolt holes 7 are evenly distributed on the connecting flanges 6 , and two adjacent steel pipe sections are bolted together through the connecting flanges 6 .

[0029] The specific construction process of the new concrete delivery pipe described in this embodiment is as follows:

[0030] 1) Welding the deceleration rib 8 to the inner wall of the vertical transport steel pipe 4;

[0031] 2) Arrange the concrete pumping truck 1, the pumping connection pipe 2, the side wall fixing card 3, the vertical transport steel pipe 4, and the concrete pouring operation pipe 5 in order, wherein the splicing method of adjacent vertical transport steel pipes 4 is as follows: align the connecting flanges 6 on the adjacent vertical transport steel pipes 4 through the connecting bolt holes 7, and then connect them together with bolts;

[0032] 3) The concrete pumping truck 1 performs concrete pumping operation through the new concrete pumping pipe, while the worker operates the concrete pouring operation pipe 5 to perform concrete pouring construction;

[0033] 4) After pouring, clean the new concrete pumping pipe;

[0034] 5) As the pouring position of the structure changes, the new concrete pumping pipe is spliced ​​and lengthened, and then the pouring construction of the structure continues;

[0035] 6) After all structures are poured, the new concrete pumping pipe shall be removed in order from bottom to top.

[0036] Example 2

[0037] On the basis of Example 1, a marking scale 9 for installing and positioning the deceleration rib 8 is further provided on the connecting flange 6. The marking scale 9 is a recessed notch, which is provided on the inner side of the connecting flange 6, and the setting position corresponds to the connecting bolt hole 7. Specifically, 3 to 4 recessed notches are provided correspondingly between the hole spacings of two adjacent connecting bolt holes 7 to ensure that after any connecting bolt holes 7 of the two connecting flanges 6 are centered, all the marking scales 9 are aligned one by one. The setting position of the deceleration rib 8 corresponds to the marking scale 9 one by one. Specifically, one marking scale 9 can correspond to one deceleration rib 8. Through the marking scale 9, after multiple sections of vertical transport steel pipes 4 are spliced, the deceleration ribs 8 in each section of the steel pipe can be aligned with each other, which can effectively avoid the concrete pipe blockage problem caused by the misalignment of the deceleration ribs, and the operation is more convenient.

[0038] The specific construction process of the new concrete delivery pipe described in this embodiment is as follows:

[0039] 1) The deceleration ribs 8 are welded to the inner wall of the vertical transport steel pipe 4 by positioning the marking scale 9. The marking scale 9 can be used to align the deceleration ribs 8 in each section of the vertical transport steel pipe 4 after multiple sections of the vertical transport steel pipe 4 are spliced;

[0040] 2) Arrange the concrete pumping truck 1, the pumping connection pipe 2, the side wall fixing card 3, the vertical transport steel pipe 4, and the concrete pouring operation pipe 5 in order, wherein the splicing method of adjacent vertical transport steel pipes 4 is as follows: align the connecting flanges 6 on the adjacent vertical transport steel pipes 4 through the connecting bolt holes 7, and then connect them together with bolts;

[0041] 3) The concrete pumping truck 1 performs concrete pumping operation through the new concrete pumping pipe, while the worker operates the concrete pouring operation pipe 5 to perform concrete pouring construction;

[0042] 4) After pouring, clean the new concrete pumping pipe;

[0043] 5) As the pouring position of the structure changes, the new concrete pumping pipe is spliced ​​and lengthened, and then the pouring construction of the structure continues;

[0044] 6) After all structures are poured, the new concrete pumping pipe shall be removed in order from bottom to top.

[0045] The above is only a preferred embodiment of the utility model, and does not limit the confidentiality of the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A new type of concrete delivery pipe with a deceleration rib, comprising a concrete pumping vehicle (1), the concrete pumping vehicle (1) being arranged on the ground and connected to a vertical transport steel pipe (4) via a pumping connection pipe (2), the vertical transport steel pipe (4) being fixed to a side wall of a vertical structure via a side wall fixing clamp (3), and the lower end of the vertical transport steel pipe being connected to a concrete pouring operation pipe (5); characterized in that: The vertical transport steel pipe (4) is a multi-section spliced ​​structure, and a plurality of speed reduction ribs (8) are arranged on the inner wall of the vertical transport steel pipe (4).

2. The novel concrete conveying pipe with deceleration ribs according to claim 1 is characterized in that: The deceleration ribs (8) are evenly distributed in an annular shape on the inner wall of the vertical transport steel pipe (4), are arranged along the entire length of the vertical transport steel pipe (4), and have two ends that are 1-2 cm shorter than the vertical transport steel pipe (4).

3. The novel concrete conveying pipe with deceleration ribs according to claim 2 is characterized in that: The speed reducer (8) is a ribbed straightened steel bar with a diameter of 12 to 16 mm.

4. The novel concrete conveying pipe with deceleration ribs according to claim 2 is characterized in that: The deceleration rib (8) is fixed to the inner wall of the vertical transport steel pipe (4) by end welding, and the welding length of each end should not be shorter than 10 cm.

5. The novel concrete conveying pipe with deceleration ribs according to any one of claims 1 to 4, characterized in that: Connecting flanges (6) are provided at both ends of the vertical transport steel pipe (4), connecting bolt holes (7) are evenly distributed on the connecting flanges (6), and two adjacent steel pipe sections are bolted together via the connecting flanges (6).

6. The novel concrete conveying pipe with deceleration ribs according to claim 5 is characterized in that: The connecting flange (6) is also provided with a marking scale (9) for installing and positioning the speed reducer rib (8).

7. The novel concrete conveying pipe with deceleration ribs according to claim 6 is characterized in that: The marking scale (9) is a recessed notch, which is arranged on the inner side of the connecting flange (6) and is arranged at a position corresponding to the connecting bolt hole (7).

8. The novel concrete conveying pipe with deceleration ribs according to claim 7 is characterized in that: Three to four recessed notches are provided correspondingly between the hole spacings of two adjacent connecting bolt holes (7) to ensure that after any connecting bolt hole (7) of the two connecting flanges (6) is centered, all the marking scales (9) are aligned one by one, and the setting positions of the speed reducers (8) correspond one by one to the marking scales (9).

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