Mechanical arm for cleaning inner wall of hollow circular pipe

Abstract

The utility model discloses a mechanical arm for cleaning the inner wall of a hollow circular tube, which comprises a disc, two side walls of the disc are respectively and fixedly connected with a first fixing cylinder and a second fixing cylinder, a vertical first liquid guide channel and a transverse second liquid guide channel are arranged in the disc, the first fixing cylinder is communicated with the first liquid guide channel, and the second fixing cylinder is communicated with the second liquid guide channel. The second fixing cylinder is communicated with the second liquid guide channel, a first electric telescopic rod is fixedly connected into the first fixing cylinder, a first piston plate is fixedly connected to the output end of the first electric telescopic rod, the first piston plate is slidably connected into the first fixing cylinder, and a second electric telescopic rod is fixedly connected into the second fixing cylinder. The device is reasonable in design and ingenious in conception, not only can be adapted to circular pipes with different pipe diameters, but also can quickly switch to brush or scrape the inner walls of the circular pipes, and is high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline cleaning, in particular to a mechanical arm for cleaning the inner wall of a hollow circular pipe. Background Art

[0002] Pipes are used to transport liquids. Due to the presence of impurities in the liquid, scaling often occurs on the inner wall of the pipe. For example, if scaling occurs in some pipes of ultrapure water treatment equipment, it may affect the flow rate and water quality, and ultimately affect the water treatment effect.

[0003] There is no device in the prior art that can effectively clean the inner wall of the pipeline. If severe scaling occurs, the pipeline generally needs to be replaced, which is costly. There are also some pipeline inner wall cleaning devices in the prior art, but most of them have complex structures. For example, CN209697654U records a portable pipeline cleaning device, which needs to be equipped with a driving mechanism that travels in the pipeline.

[0004] In order to adapt to round tubes of different diameters and to be able to switch between brushing and scraping the inner wall of the round tube, the present application proposes a robotic arm for cleaning the inner wall of a hollow round tube. Utility Model Content

[0005] The utility model provides a mechanical arm for cleaning the inner wall of a hollow circular tube, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A mechanical arm for cleaning the inner wall of a hollow circular tube comprises a disc, wherein a first fixed cylinder and a second fixed cylinder are fixedly connected to both side walls of the disc, respectively, a vertical first liquid guiding channel and a horizontal second liquid guiding channel are provided in the disc, the first fixed cylinder is communicated with the first liquid guiding channel, the second fixed cylinder is communicated with the second liquid guiding channel, a first electric telescopic rod is fixedly connected in the first fixed cylinder, a first piston plate is fixedly connected to the output end of the first electric telescopic rod, the first piston plate is slidably connected in the first fixed cylinder, the second fixed cylinder is fixedly connected to the second electric telescopic rod, the output end of the second electric telescopic rod is fixedly connected to the second piston plate, the second piston plate is slidably connected in the second fixed cylinder, two brushes are connected at both ends of the first liquid guiding channel through a first elastic telescopic device, two scrapers are connected at both ends of the second liquid guiding channel through a second elastic telescopic device, and one end of the second fixed cylinder is connected to the third electric telescopic rod through a rotating device.

[0008] As a further improvement of the present technical solution: the first elastic telescopic device includes two first pushing plates, the two first pushing plates are respectively slidably connected to the two ends of the first liquid guiding channel, the side walls of the two first pushing plates are fixedly connected with first sliding rods, the two first sliding rods respectively penetrate the two end side walls of the first liquid guiding channel and are fixedly connected to the brushes, each of the first sliding rods is sleeved with a first spring, and the two ends of the first spring are respectively fixedly connected to the first pushing plate and one end side wall of the first liquid guiding channel.

[0009] As a further improvement of the present technical solution: the second elastic telescopic device includes two second push plates, the two second push plates are respectively slidably connected to the two ends of the second liquid guiding channel, the side walls of the two second push plates are fixedly connected with second sliding rods, the two second sliding rods respectively penetrate the side walls at both ends of the second liquid guiding channel and are fixedly connected to the scraper, each of the second sliding rods is provided with a second spring, and the two ends of the second spring are respectively fixedly connected to the second push plate and the side wall of one end of the second liquid guiding channel.

[0010] As a further improvement of the present technical solution: the rotating device includes a motor box, the motor box is fixedly connected to one end of the third electric telescopic rod, a servo motor is fixedly connected inside the motor box, and the output shaft of the servo motor passes through the side wall of the motor box and is fixedly connected to the side wall of the motor box.

[0011] As a further improvement of the technical solution: a camera is provided on a side wall at one end of the surface of the first fixed tube.

[0012] As a further improvement of the technical solution: the cross section of the scraper is arranged in a triangular shape.

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

[0014] The device is reasonably designed and ingeniously conceived. It can not only adapt to round tubes of different diameters, but also can quickly switch to brush or scrape the inner wall of the round tube, and is highly practical.

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 This is a front cross-sectional structural schematic diagram of a mechanical arm for cleaning the inner wall of a hollow circular tube proposed by the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the disc in the utility model;

[0019] Figure 3 It is a side cross-sectional structural schematic diagram of the first liquid guiding channel in the disc of the utility model;

[0020] Figure 4 It is a side sectional structural schematic diagram of the second liquid guiding channel in the disc of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. First electric telescopic rod; 2. First piston plate; 3. First fixed cylinder; 4. First liquid guiding channel; 5. First push plate; 6. First spring; 7. Brush; 8. First sliding rod; 9. Second fixed cylinder; 10. Motor box; 11. Servo motor; 12. Third electric telescopic rod; 13. Second liquid guiding channel; 14. Second piston plate; 15. Second electric telescopic rod; 16. Disc; 17. Second sliding rod; 18. Scraper; 19. Second spring; 20. Second push plate; 21. Camera. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] See also Figures 1 to 4 In the embodiment of the utility model, a mechanical arm for cleaning the inner wall of a hollow circular tube includes a disc 16, and a first fixed cylinder 3 and a second fixed cylinder 9 are fixedly connected to the two side walls of the disc 16 respectively. A vertical first liquid guide channel 4 and a horizontal second liquid guide channel 13 are opened in the disc 16. The first fixed cylinder 3 is connected to the first liquid guide channel 4, and the second fixed cylinder 9 is connected to the second liquid guide channel 13. A first electric telescopic rod 1 is fixedly connected in the first fixed cylinder 3, and a first piston plate 2 is fixedly connected to the output end of the first electric telescopic rod 1. The first piston plate 2 is slidably connected in the first fixed cylinder 3. A second electric telescopic rod 15 is fixedly connected in the second fixed cylinder 9, and a second piston plate 14 is fixedly connected to the output end of the second electric telescopic rod 15. The second piston plate 14 is slidably connected in the second fixed cylinder 9. Two ends of the first liquid guiding channel 4 are respectively connected to two brushes 7 through a first elastic telescopic device, and two ends of the second liquid guiding channel 13 are respectively connected to two scrapers 18 through a second elastic telescopic device. The cross-section of the scraper 18 is triangular. One end of the second fixed cylinder 9 is connected to the third electric telescopic rod 12 through a rotating device, and a camera 21 is provided on the side wall of one end of the surface of the first fixed cylinder 3.

[0027] Specifically, the first elastic telescopic device includes two first push plates 5, which are respectively slidably connected to the two ends of the first liquid guiding channel 4, and the side walls of the two first push plates 5 are fixedly connected with first sliding rods 8. The two first sliding rods 8 respectively penetrate the two end side walls of the first liquid guiding channel 4 and are fixedly connected to the brushes 7. Each first sliding rod 8 is sleeved with a first spring 6, and the two ends of the first spring 6 are respectively fixedly connected to the first push plate 5 and the side wall of one end of the first liquid guiding channel 4. The connecting chamber between the two first push plates 5 and the first piston plate 2 is filled with pressure-conducting liquid. The extension of the first electric telescopic rod 1 can push the pressure-conducting liquid to squeeze the two first push plates 5 through the first piston plate 2. After the two first push plates 5 are pressurized, they can drive the first sliding rod 8 to extend, thereby driving the two brushes 7 to press against the inner wall of the circular tube to adapt to circular tubes of different diameters.

[0028] Specifically, the second elastic telescopic device includes two second push plates 20, which are respectively slidably connected to the two ends of the second liquid guiding channel 13, and the side walls of the two second push plates 20 are fixedly connected with second sliding rods 17. The two second sliding rods 17 respectively penetrate the side walls of the two ends of the second liquid guiding channel 13 and are fixedly connected to the scraper 18. Each second sliding rod 17 is sleeved with a second spring 19, and the two ends of the second spring 19 are respectively fixedly connected to the second push plate 20 and the side wall of one end of the second liquid guiding channel 13. The connecting chamber between the two second push plates 20 and the second piston plate 14 is filled with pressure-conducting liquid. The extension of the second electric telescopic rod 15 can push the pressure-conducting liquid through the second piston plate 14 to squeeze the two second push plates 20. After the two second push plates 20 are compressed, the second sliding rods 17 are driven to extend, so that the two scrapers 18 are against the inner wall of the circular tube.

[0029] Specifically, the rotating device includes a motor box 10, which is fixedly connected to one end of the third electric telescopic rod 12. A servo motor 11 is fixedly connected inside the motor box 10. The output shaft of the servo motor 11 passes through the side wall of the motor box 10 and is fixedly connected to the side wall of the motor box 10. When the servo motor 11 is started, it can drive the disc 16 to rotate. The rotation of the disc 16 can drive the two brushes 7 and two scrapers 18 on its side wall to rotate, thereby realizing brushing or scraping the inner wall of the circular tube.

[0030] The working principle of the utility model is:

[0031] When cleaning a round tube, firstly, the third electric telescopic rod 12 is extended to move the disc 16 into the round tube, and the dirt in the round tube can be observed through the camera 21. When it is necessary to brush the inner wall of the round tube, the first electric telescopic rod 1 can be started to extend. The extension of the first electric telescopic rod 1 can push the pressure-conducting liquid to squeeze the two first push plates 5 through the first piston plate 2. After the two first push plates 5 are pressed, the first sliding rod 8 can be driven to extend, thereby driving the two brushes 7 to press against the inner wall of the round tube to adapt to round tubes of different diameters. Then, the servo motor 11 is started. The servo motor 11 can drive the disc 16 to rotate when it is started. The rotation of the disc 16 can drive the two brushes 7 to rotate, thereby realizing the brushing of the inner wall of the round tube.

[0032] When there is stubborn dirt on the inner wall of the circular tube that needs to be scraped off, the second electric telescopic rod 15 can be started to extend. The extension of the second electric telescopic rod 15 can push the pressure-conducting liquid through the second piston plate 14 to squeeze the two second push plates 20. After the two second push plates 20 are pressed, they drive the second sliding rod 17 to extend, so that the two scrapers 18 are against the inner wall of the circular tube. Then, the servo motor 11 is started again. The servo motor 11 can drive the two scrapers 18 to rotate through the disc 16, so that the stubborn dirt on the inner wall of the circular tube can be scraped off.

[0033] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A mechanical arm for cleaning the inner wall of a hollow circular tube, comprising a disc (16), characterized in that: A first fixed cylinder (3) and a second fixed cylinder (9) are fixedly connected to the two side walls of the disk (16), respectively; a vertical first liquid conducting channel (4) and a horizontal second liquid conducting channel (13) are provided in the disk (16); the first fixed cylinder (3) is communicated with the first liquid conducting channel (4), and the second fixed cylinder (9) is communicated with the second liquid conducting channel (13); a first electric telescopic rod (1) is fixedly connected in the first fixed cylinder (3); an output end of the first electric telescopic rod (1) is fixedly connected to a first piston plate (2), and the first piston plate (2) is slidably connected to the first fixed cylinder (3). In the fixed cylinder (3), a second electric telescopic rod (15) is fixedly connected to the second fixed cylinder (9), an output end of the second electric telescopic rod (15) is fixedly connected to a second piston plate (14), the second piston plate (14) is slidably connected to the second fixed cylinder (9), two brushes (7) are connected to the two ends of the first liquid guide channel (4) through a first elastic telescopic device, two scrapers (18) are connected to the two ends of the second liquid guide channel (13) through a second elastic telescopic device, and one end of the second fixed cylinder (9) is connected to a third electric telescopic rod (12) through a rotating device.

2. A mechanical arm for cleaning the inner wall of a hollow circular tube according to claim 1, characterized in that: The first elastic telescopic device comprises two first push plates (5), the two first push plates (5) are respectively slidably connected to the two ends of the first liquid guiding channel (4), the side walls of the two first push plates (5) are fixedly connected to first sliding rods (8), the two first sliding rods (8) respectively penetrate the two end side walls of the first liquid guiding channel (4) and are fixedly connected to the brush (7), each of the first sliding rods (8) is sleeved with a first spring (6), and the two ends of the first spring (6) are respectively fixedly connected to the first push plate (5) and the side wall of one end of the first liquid guiding channel (4).

3. A mechanical arm for cleaning the inner wall of a hollow circular tube according to claim 1, characterized in that: The second elastic telescopic device comprises two second push plates (20), the two second push plates (20) are respectively slidably connected to the two ends of the second liquid guiding channel (13), the side walls of the two second push plates (20) are fixedly connected with second sliding rods (17), the two second sliding rods (17) respectively penetrate the two end side walls of the second liquid guiding channel (13) and are fixedly connected to the scraper (18), each second sliding rod (17) is sleeved with a second spring (19), and the two ends of the second spring (19) are respectively fixedly connected to the second push plate (20) and the side wall of one end of the second liquid guiding channel (13).

4. A mechanical arm for cleaning the inner wall of a hollow circular tube according to claim 1, characterized in that: The rotating device comprises a motor box (10), wherein the motor box (10) is fixedly connected to one end of a third electric telescopic rod (12), a servo motor (11) is fixedly connected inside the motor box (10), and an output shaft of the servo motor (11) passes through a side wall of the motor box (10) and is fixedly connected to the side wall of the motor box (10).

5. The mechanical arm for cleaning the inner wall of a hollow circular tube according to claim 1, characterized in that: A camera (21) is provided on a side wall at one end of the surface of the first fixed tube (3).

6. A mechanical arm for cleaning the inner wall of a hollow circular tube according to claim 1, characterized in that: The cross section of the scraper (18) is arranged in a triangular shape.

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