Protective coating device for inner wall of reinforced concrete drainage pipe

Abstract

The utility model relates to the technical field of reinforced concrete drainage pipes, and discloses a reinforced concrete drainage pipe inner wall protective coating device which comprises a pipe body, an arc-shaped buffer plate is arranged on the inner side of a water inlet of the pipe body, first rotating shafts are rotationally installed on the two symmetrical sides of the arc-shaped buffer plate, and grooves are formed in the ends, away from each other, of the two first rotating shafts. Rotating shafts II are fixedly mounted in grooves of the rotating shafts I, rolling wheels are rotatably mounted on the outer sides of the rotating shafts II, an annular sliding groove is formed in the inner wall of the pipe body, the rolling wheels are arranged in the annular sliding groove in a rolling mode, and semicircular rotating shafts III are fixedly mounted at the rotating ends of the rotating shafts I; through the arrangement of the arc-shaped buffer plate, the first rotating shaft, the second rotating shaft, the rolling wheels and the annular sliding groove, the arc-shaped buffer plate is arranged at the position of the water inlet of the pipe body, when large water flow gathered by the outside is impacted, the water flow firstly impacts the arc-shaped buffer plate for buffering, and therefore the impact force of the water flow on the inner wall of the pipe body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforced concrete drainage pipes, and more specifically to a protective coating device for the inner wall of a reinforced concrete drainage pipe. Background Art

[0002] Concrete pipe refers to a pipe made of concrete or reinforced concrete, used to transport fluids such as water, oil and gas. It is divided into four categories: plain concrete pipe, ordinary reinforced concrete pipe, self-stressed reinforced concrete pipe and prestressed concrete pipe. According to the different inner diameters of concrete pipes, they can be divided into small diameter pipes, medium diameter pipes and large diameter pipes. According to the different water pressure bearing capacity of the pipes, they can be divided into low-pressure pipes and pressure pipes. Compared with steel pipes, concrete pipes can be divided into flat-end pipes, socket-and-spigot pipes and tongue-and-groove pipes according to the different types of pipe joints.

[0003] Most of the existing concrete drainage pipes are of a single structure. When the high-speed water flow in the small-diameter water pipe enters the larger drainage pipe, it will produce an instantaneous impact on the water inlet of the larger drainage pipe, thereby damaging the anti-corrosion coating on the inner wall of the large drainage pipe.

[0004] Therefore, in view of this, research and improvement are conducted on the existing structure and defects, and a protective coating device for the inner wall of a reinforced concrete drainage pipe is provided, in order to achieve a more practical purpose. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a reinforced concrete drainage pipe inner wall protective coating device to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solution: a protective coating device for the inner wall of a reinforced concrete drainage pipe, comprising a pipe body, an arc-shaped buffer plate is arranged on the inner side of a water inlet of the pipe body, a rotating shaft 1 is symmetrically installed on both sides of the arc-shaped buffer plate, two rotating shafts 1 are rotatably installed at ends away from each other, a groove is provided in each of the two rotating shafts 1, a rotating shaft 2 is fixedly installed in the groove of each of the rotating shafts 1, a roller is rotatably installed on the outer side of each of the rotating shafts 2, an annular groove is provided on the inner wall of the pipe body, and the roller is rotatably arranged inside the annular groove.

[0007] Furthermore, a semicircular rotating shaft three is fixedly installed at the rotating end of the rotating shaft one, and a three-quarter circular groove is opened on the symmetrical side wall of the arc-shaped buffer plate. The semicircular rotating shaft three is rotatably arranged in the three-quarter circular groove. By the rotation of the semicircular rotating shaft three in the three-quarter circular groove, the rotation angle of the rotating shaft one on the semicircular rotating shaft three is limited, thereby avoiding a large rotation of the outer arc-shaped buffer plate, which affects the placement of the device.

[0008] Furthermore, a buffer pad is fixedly installed on the outer side of the arc buffer plate. When the arc buffer plate vibrates, the contact between the arc buffer plate and the inner wall of the tube body is made flexible through the buffer pad, thereby reducing damage to the inner wall of the tube body.

[0009] Furthermore, a number of water guide grooves are evenly arranged on the inner side of the arc-shaped buffer plate, and the collected water flow is guided and diverted through the water guide grooves to reduce the impact force of the water flow.

[0010] Furthermore, the rotating shaft 1 and the arc-shaped buffer plate are rotatably connected via a bearing, and the bearing improves the smoothness of the rotation of the arc-shaped buffer plate on the outer side of the rotating shaft 1.

[0011] Furthermore, a sealing ring is provided between the rotating shaft 1 and the gap of the tube body, and the connecting gap between the arc-shaped buffer plate and the semicircular rotating shaft 3 is sealed by the sealing ring, thereby reducing the corrosion of water to the bearing.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model is provided with an arc buffer plate, a rotating shaft 1, a rotating shaft 2, a roller, and an annular slide groove. When in use, through the arc buffer plate arranged at the water inlet of the pipe body, when facing the impact of a large water flow gathered from the outside, the water flow will first impact the arc buffer plate for buffering, thereby reducing the impact force of the water flow on the inner wall of the pipe body, greatly improving the practicality of the device.

[0014] 2. The utility model is provided with a semicircular rotating shaft three. When in use, the semicircular rotating shaft three is rotated in a three-quarter circular groove to limit the rotation angle of the rotating shaft one on the semicircular rotating shaft three, thereby avoiding a large rotation of the outer arc-shaped buffer plate to affect the placement of the device, thereby greatly improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the arc-shaped buffer plate of the utility model.

[0017] Figure 3 For the utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] Figure 4 It is a schematic diagram of the side structure of the arc-shaped buffer plate of the utility model.

[0019] Figure 5 It is a schematic diagram of the connection structure of the rotating shaft 1 and the semicircular rotating shaft 3 of the utility model.

[0020] The reference numerals in the drawings are: 100, tube body; 110, arc-shaped buffer plate; 111, rotating shaft one; 112, rotating shaft two; 113, roller; 114, annular slide groove; 120, semicircular rotating shaft three; 121, water guide groove; 122, buffer pad; 123, bearing; 124, sealing ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Example 1: Please refer to Figure 1-5 The utility model provides a reinforced concrete drainage pipe inner wall protective coating device, including a pipe body 100, an arc-shaped buffer plate 110 is arranged on the inner side of the water inlet of the pipe body 100, and a rotating shaft 111 is symmetrically installed on both sides of the arc-shaped buffer plate 110 for rotation. The two rotating shafts 111 are provided with grooves at the ends away from each other, and a rotating shaft 2 112 is fixedly installed in the groove of the rotating shaft 111, and a roller 113 is rotatably installed on the outer side of the rotating shaft 2 112. An annular slide groove 114 is opened on the inner wall of the pipe body 100, and the roller 113 is rollingly arranged inside the annular slide groove 114.

[0023] Working principle: When in use, connect the small-diameter pipe to the pipe body 100. When the water flows in multiple small-diameter pipes converge into the inside of the pipe body 100, part of the water flow will impact the arc-shaped buffer plate 110. At the same time, the arc-shaped buffer plate 110 will swing through the roller 113 driven by the water flow, thereby interfering with the speed of the water flow, thereby reducing the damage caused by the direct impact of the water flow on the inner wall of the pipe body 100. When the pipe body 100 is placed, it will slide in the arc-shaped buffer plate 110 through the roller 113, thereby ensuring that the arc-shaped buffer plate 110 is located at the bottom of the inner side of the pipe body 100. Embodiment 2

[0024] The difference between the second embodiment and the first embodiment is that the rotating ends of the first shaft 111 are fixedly installed with the semicircular third shaft 120, the symmetrical side walls of the arc buffer plate 110 are provided with three-quarter circular grooves, the semicircular third shaft 120 is rotatably arranged in the three-quarter circular groove, the outer side of the arc buffer plate 110 is fixedly installed with a buffer pad 122, the inner side of the arc buffer plate 110 is evenly provided with a number of water guide grooves 121, the first shaft 111 and the arc buffer plate 110 are rotatably connected through a bearing 123, and a sealing ring 124 is provided between the first shaft 111 and the gap of the tube body 100. When the water flow hits the arc buffer plate 110, the water flow is prevented from flowing. After the buffer plate 110 is put on, the arc buffer plate 110 is driven to shake, and the contact between the arc buffer plate 110 and the inner wall of the tube body 100 is made flexible through the buffer pad 122. The semicircular shaft three 120 is rotated in the three-quarter circular groove to prevent the arc buffer plate 110 from rotating too much inside the device when the device is placed, thereby affecting the placement of the device. The smoothness of the rotation of the arc buffer plate 110 is improved by the bearing 123, and the gap between the shaft 1 111 and the arc buffer plate 110 is sealed by the sealing ring 124, and the water flow is buffered and diverted by the water guide groove 121.

[0025] Finally: The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A reinforced concrete drainage pipe inner wall protective coating device, comprising a pipe body (100), characterized in that: An arc-shaped buffer plate (110) is arranged on the inner side of the water inlet of the tube body (100), and a rotating shaft (111) is rotatably mounted on both sides of the arc-shaped buffer plate (110), and grooves are provided at the ends of the two rotating shafts (111) that are away from each other, and a rotating shaft (112) is fixedly mounted in the groove of the rotating shaft (111), and a roller (113) is rotatably mounted on the outer side of the rotating shaft (112), and an annular sliding groove (114) is provided on the inner wall of the tube body (100), and the roller (113) is rollingly arranged inside the annular sliding groove (114).

2. The reinforced concrete drainage pipe inner wall protective coating device according to claim 1 is characterized in that: The rotating ends of the rotating shaft one (111) are fixedly mounted with semicircular rotating shaft three (120), and the symmetrical side walls of the arc-shaped buffer plate (110) are provided with three-quarter circular grooves, and the semicircular rotating shaft three (120) is rotatably arranged in the three-quarter circular grooves.

3. The reinforced concrete drainage pipe inner wall protective coating device according to claim 1 is characterized in that: A buffer pad (122) is fixedly mounted on the outer side of the arc-shaped buffer plate (110).

4. The reinforced concrete drainage pipe inner wall protective coating device according to claim 1 is characterized in that: A number of water guide grooves (121) are evenly arranged on the inner side of the arc-shaped buffer plate (110).

5. The reinforced concrete drainage pipe inner wall protective coating device according to claim 1 is characterized in that: The first rotating shaft (111) and the arc-shaped buffer plate (110) are rotatably connected via a bearing (123).

6. The reinforced concrete drainage pipe inner wall protective coating device according to claim 1, characterized in that: A sealing ring (124) is provided between the gap between the rotating shaft 1 (111) and the tube body (100).

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