Automatic sand blower for inner wall of pipeline

Abstract

The utility model discloses an automatic sand blower for the inner wall of a pipeline. The automatic sand blower comprises a connecting rod I, a fixed rod and a protective shell, the number of the first connecting rods is two, the middles of the inner side faces of the two first connecting rods are rotationally connected with second connecting rods through pin shafts, rotating shafts are rotationally connected between the left ends and the right ends of the two second connecting rods and between the left ends and the right ends of the two first connecting rods, and the outer side ends of the rotating shafts are fixedly sleeved with rolling wheels. Anti-skid grains are uniformly distributed on the outer surfaces of the rollers; the fixing rods are fixedly connected between the lower ends of the left sides of the two first connecting rods and between the upper ends of the left sides of the two second connecting rods correspondingly, and the middle of the fixing rod at the lower end is fixedly connected with a connecting plate. And meanwhile, cleaning work can be carried out in pipelines with different diameters, and the application range of the sand blower is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline cleaning, in particular to an automatic sandblasting device for the inner wall of a pipeline. Background Art

[0002] Sandblasting generally refers to the process of using high-pressure air or water to spray sand or other hard particles onto the target surface to remove surface dirt, oxides, paint or other unwanted substances. Sandblasting is usually used for surface treatment, cleaning and preparation, such as preparing the surface before painting, removing oxide layers or cleaning metal surfaces. However, automatic sandblasters can automatically perform sandblasting operations without continuous manual operation, thereby improving the efficiency of cleaning operations;

[0003] The traditional automatic sandblasting machine for inner wall of pipeline uses a fixed bracket to carry the sandblasting machine, which is then manually pushed to move in the pipeline, and then the fixed nozzle is controlled by the control system to perform sandblasting.

[0004] The traditional automatic sandblasting machine for the inner wall of pipes has the following problems: the fixed bracket is usually designed for pipes of a specific diameter and cannot adapt to pipes of different diameters, and has poor flexibility. At the same time, the fixed nozzle may cause uneven cleaning of the inner wall of the pipe, and some areas may be over-cleaned, making it impossible to perform sandblasting on a large scale. For this reason, we propose an automatic sandblasting machine for the inner wall of pipes. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an automatic pipe inner wall sandblasting device, which can cover every corner and hard-to-reach parts of the target surface, ensure that the entire surface can be processed, and effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic sandblaster for the inner wall of a pipeline, comprising a connecting rod 1, a fixing rod and a protective shell;

[0007] Connecting rod 1: There are two of them. The middle parts of the inner sides of the two connecting rods 1 are rotatably connected with connecting rod 2 through a pin shaft. A rotating shaft is rotatably connected between the left and right ends of the two connecting rods 2 and between the left and right ends of the two connecting rods 1. The outer ends of the rotating shaft are fixed with rollers, and the outer surfaces of the rollers are provided with evenly distributed anti-slip patterns.

[0008] Fixed rod: It is fixedly connected between the left lower ends of the two connecting rods 1 and the left upper ends of the two connecting rods 2, respectively. A connecting plate is fixedly connected to the middle of the fixed rod at the lower end, and a sandblasting tube is fixedly connected to the upper surface of the connecting plate. A threaded groove is provided inside the left end of the sandblasting tube, and a sandblasting mechanism is provided on the right side of the sandblasting tube.

[0009] Protective shell: It is fixedly connected to the top of the outer surface of the sandblasting tube. A battery is provided on the right side of the top of the outer surface of the sandblasting tube. The battery is located inside the protective shell, which can cover every corner and hard-to-reach parts of the target surface, ensuring that the entire surface can be processed. At the same time, cleaning work can be performed inside pipes of different diameters, which not only improves the application range of the sandblaster.

[0010] Furthermore, it also includes a single chip microcomputer, which is arranged on the right side of the top of the sandblasting tube. The single chip microcomputer is located inside the protective shell, and the output end of the single chip microcomputer is electrically connected to the input end of the battery to facilitate the regulation of various electrical appliances.

[0011] Furthermore, it also includes an infrared receiver, which is arranged in the middle of the top of the sandblasting tube. The infrared receiver is located inside the protective shell. The infrared receiver is bidirectionally electrically connected to the single-chip microcomputer to facilitate remote control.

[0012] Furthermore, the front and rear ends of the protective shell are respectively fixedly connected with connecting rods, and the outer ends of the connecting rods that are away from each other are slidably connected to the arc-shaped opening of the adjacent connecting rod, thereby improving stability during operation.

[0013] Furthermore, it also includes tension springs, which are fixedly connected between the connecting rod 1 and the connecting rod 2 at the left and right ends, thereby improving the convenience and efficiency of operation.

[0014] Furthermore, the sandblasting mechanism includes a bearing, a delivery pipe, a nozzle, a spray head and a spiral guide port. The delivery pipe is rotatably connected to the inner wall of the right end of the sandblasting pipe through a bearing. Two spray pipes are respectively inserted at the upper and lower ends of the outer surface of the delivery pipe. The outer surfaces of the spray pipes are respectively provided with evenly distributed spray holes. The right end of the delivery pipe is fixedly connected to the spray head. The outer surface of the spray head is provided with evenly distributed spiral guide ports, so that the sandblasting evenly covers the entire target surface of the pipe wall.

[0015] Furthermore, the sandblasting mechanism also includes a small-diameter gear, a motor and a large-diameter gear. The motor is installed on the right side of the top of the sandblasting tube by bolts. The motor is located inside the protective shell. The output shaft of the motor extends to the outside of the right side of the protective shell. The output shaft of the motor is fixedly sleeved on the small-diameter gear. The large-diameter gear is fixedly sleeved on the left end of the conveying pipe. The large-diameter gear is meshed with the small-diameter gear. The input end of the motor is electrically connected to the output end of the single-chip microcomputer to facilitate driving the sandblasting mechanism.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The motor is running, and the output shaft of the motor drives the small-diameter gear to rotate. The small-diameter gear meshes and rotates with the large-diameter gear. The large-diameter gear drives the delivery pipe to rotate through the bearing. The delivery pipe drives the two nozzles plugged on the outer surface to rotate, and then the sand or other hard particles are delivered to the sandblasting tube through the pressure of the external liquid pump. They are delivered to the delivery pipe through the sandblasting tube for diversion. A part of them is diverted to the nozzle in turn through the high-pressure air of the air pump, and then sprayed onto the inner wall of the pipe through the spray hole. Then, through the continuous rotation of the delivery pipe, the nozzle is driven to revolve, so that every corner and hard-to-reach parts of the target surface can be covered, ensuring that the entire surface can be processed, improving the comprehensiveness and thoroughness of cleaning or surface treatment, while the other part is diverted to the nozzle, and then the sandblasting area is expanded through the spiral guide port, so that the sandblasting can evenly cover the entire target surface of the pipe wall to avoid leakage or uneven sandblasting.

[0018] 2. When the pipe diameter is small, the connecting rod 1 and the connecting rod 2 cannot be fully unfolded due to the limitation of the pipe diameter. In this case, the two start to rotate with the pin shaft between them as the center, driving the connecting rod to slide in the arc mouth and rotate a certain angle with the central axis of the pin shaft connected in the middle of the connecting rod 1 and the connecting rod 2 as the center of the circle. Then, during the rotation of the connecting rod 1 and the connecting rod 2, the rotation of the connecting rod 1 and the connecting rod 2 will drive the tension spring to gradually shrink, so that the tension spring is compressed during the rotation of the connecting rod 1 and the connecting rod 2, so that the whole gradually becomes more compact. As the tension spring shrinks, the connecting rod 1 and the connecting rod 2 gradually fold, so that the overall size gradually decreases, gradually adapting to the situation of smaller pipe diameter, and being able to walk inside it, so that cleaning work can be performed inside pipes of different diameters, which not only improves the application range of the sandblaster, but also reduces the need for adjustment to different pipe diameters, thereby improving the convenience and efficiency of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model in a front side section;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model enlarged at A;

[0022] Figure 4 It is a schematic diagram of the local structure of the spiral guide port of the utility model.

[0023] In the figure: 1 connecting rod 1, 2 connecting rod 2, 3 fixing rod, 4 tension spring, 5 roller, 6 anti-skid pattern, 7 rotating shaft, 8 connecting plate, 9 sandblasting tube, 10 protective shell, 11 sandblasting mechanism, 111 nozzle, 112 small diameter gear, 113 motor, 114 nozzle, 115 spiral guide port, 116 bearing, 117 large diameter gear, 118 conveying pipe, 12 connecting rod, 13 battery, 14 infrared receiver, 15 single chip microcomputer, 16 thread groove. 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 part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] See also Figure 1-4 , this embodiment provides a technical solution: an automatic sandblaster for the inner wall of a pipeline, comprising a connecting rod 1, a fixing rod 3 and a protective shell 10;

[0026] Connecting rod 1: There are two of them. The middle parts of the inner sides of the two connecting rods 1 are rotatably connected with connecting rod 2 through pin shafts. A rotating shaft 7 is rotatably connected between the left and right ends of the two connecting rods 2 and between the left and right ends of the two connecting rods 1. The outer ends of the rotating shaft 7 are fixedly sleeved with rollers 5. The outer surfaces of the rollers 5 are provided with evenly distributed anti-skid patterns 6. It also includes tension springs 4. The tension springs 4 are fixedly connected between the connecting rods 1 and 2 at the left and right ends. The left end of the sandblasting tube 9 is threadedly connected to the external connecting tube through the thread groove 16, and then the external air pump starts to work. The staff pushes the sandblasting tube 9 to move through the external connecting tube, driving the connecting rods 1 and 2 to move through the rollers 5 at the left and right ends of the rotating shaft 7. When the pipe diameter is small, the connecting rods 1 and 2 are connected. The rod 2 2 cannot be fully unfolded due to the limitation of the pipe diameter. In this case, the two start to rotate with the pin shaft between them as the center. Then, during the rotation of the connecting rod 1 and the connecting rod 2, the rotation of the connecting rod 1 and the connecting rod 2 will drive the tension spring 4 to gradually shrink, so that the tension spring 4 is compressed during the rotation of the connecting rod 1 and the connecting rod 2, so that the whole gradually becomes more compact. As the tension spring 4 shrinks, the connecting rod 1 and the connecting rod 2 are gradually folded, so that the size of the whole gradually decreases, gradually adapting to the situation of a smaller pipe diameter, and being able to walk inside it, so that cleaning work can be performed inside pipes of different diameters, which not only improves the application range of the sandblaster, but also reduces the need for adjustment to different pipe diameters, thereby improving the convenience and efficiency of operation;

[0027] Fixed rod 3: It is fixedly connected between the left lower ends of the two connecting rods 1 and the left upper ends of the two connecting rods 2, respectively. The middle part of the fixed rod 3 at the lower end is fixedly connected with a connecting plate 8, and the upper surface of the connecting plate 8 is fixedly connected with a sandblasting tube 9. The left end of the sandblasting tube 9 is provided with a threaded groove 16 inside, and the right side of the sandblasting tube 9 is provided with a sandblasting mechanism 11. The sandblasting mechanism 11 includes a bearing 116, a delivery pipe 118, a nozzle 111, a nozzle 114 and a spiral guide port 115. The delivery pipe 118 is rotatably connected to the inner wall of the right end of the sandblasting tube 9 through the bearing 116, and the upper and lower ends of the outer surface of the delivery pipe 118 are respectively plugged into There are two nozzles 111, and the outer surfaces of the nozzles 111 are respectively provided with uniformly distributed spray holes. The right end of the delivery pipe 118 is fixedly connected to a nozzle 114, and the outer surface of the nozzle 114 is provided with uniformly distributed spiral guide ports 115. The sandblasting mechanism 11 also includes a small-diameter gear 112, a motor 113 and a large-diameter gear 117. The motor 113 is installed on the right side of the top of the sandblasting tube 9 by bolts. The motor 113 is located inside the protective shell 10, and the output shaft of the motor 113 extends to the outside of the right side of the protective shell 10. The output shaft of the motor 113 is fixedly sleeved on the small-diameter gear 112, and the large-diameter gear 117 is fixed. The large diameter gear 117 is mounted on the left end of the delivery pipe 118, and the small diameter gear 112 is meshed and connected. The input end of the motor 113 is electrically connected to the output end of the single chip computer 15. When the motor 113 is running, the output shaft of the motor 113 drives the small diameter gear 112 to rotate, and the small diameter gear 112 is meshed and rotated with the large diameter gear 117. The large diameter gear 117 drives the delivery pipe 118 to rotate through the bearing 116. The delivery pipe 118 drives the two nozzles 111 plugged on the outer surface to rotate, and then the sand or other hard particles are transported to the sandblasting pipe 9 through the pressure of the external liquid pump, and are transported to the delivery pipe 118 through the sandblasting pipe 9 for separation. A part of the flow is diverted to the nozzle 111 in sequence by the action of the high-pressure air of the air pump, and then sprayed onto the inner wall of the pipe through the spray hole, and then driven by the continuous rotation of the delivery pipe 118 to drive the nozzle 111 to revolve, so that every corner and hard-to-reach parts of the target surface can be covered, ensuring that the entire surface can be treated, improving the comprehensiveness and thoroughness of cleaning or surface treatment, while another part is diverted to the nozzle 114, and then expanded through the spiral guide port 115 to expand the sandblasting area, so that the sandblasting can evenly cover the entire target surface, avoiding the occurrence of missed spraying or uneven sandblasting;

[0028] Protective shell 10: It is fixedly connected to the top of the outer surface of the sandblasting tube 9. A battery 13 is provided on the right side of the top of the outer surface of the sandblasting tube 9. The battery 13 is located inside the protective shell 10. It also includes a single-chip microcomputer 15. The single-chip microcomputer 15 is arranged on the right side of the top of the sandblasting tube 9. The single-chip microcomputer 15 is located inside the protective shell 10. The output end of the single-chip microcomputer 15 is electrically connected to the input end of the battery 13. It also includes an infrared receiver 14. The infrared receiver 14 is arranged in the middle of the top of the sandblasting tube 9. The infrared receiver 14 is located inside the protective shell 10. The infrared receiver 14 is bidirectionally electrically connected to the single-chip microcomputer 15. At the same time, external staff can communicate with the single-chip microcomputer 15 through the infrared receiver 14. An instruction is sent out through an external infrared generator, and a pulse signal is transmitted to the single-chip computer 15 through the infrared receiver 14. The single-chip computer 15 controls the internal electrical appliances after making a judgment. The single-chip computer 15 regulates the battery 13 to transmit power to the motor 113. The front and rear ends of the protective shell 10 are respectively fixedly connected with connecting rods 12, and the opposite outer ends of the connecting rods 12 are slidingly connected to the arc-shaped opening of the adjacent connecting rod 1. The connecting rod 12 passes through the arc-shaped opening and takes the central axis of the pin connecting the middle of the connecting rod 1 and the connecting rod 2 as the center of the circle. The center of the circle where the arc-shaped opening is located is located on the central axis of the pin connecting the middle of the connecting rod 1 and the connecting rod 2.

[0029] The working principle of an automatic sandblasting device for the inner wall of a pipeline provided by the utility model is as follows: the left end of a sandblasting tube 9 is threadedly connected to an external connecting tube through a threaded groove 16, and then the external air pump starts to work, and the staff pushes the sandblasting tube 9 to move through the external connecting tube, driving the connecting rod 1 and the connecting rod 2 to move through the rollers 5 at the left and right ends of the rotating shaft 7. At the same time, the external staff sends a command through an external infrared generator, and transmits a pulse signal to a single-chip microcomputer 15 through an infrared receiver 14. After the single-chip microcomputer 15 makes a judgment, it controls the internal electrical appliances, and the single-chip microcomputer 15 regulates the storage battery 13 to transmit power to the motor 113, and the motor 113 runs, and the motor 113 The output shaft drives the small diameter gear 112 to rotate, the small diameter gear 112 meshes and rotates with the large diameter gear 117, the large diameter gear 117 drives the delivery pipe 118 to rotate through the bearing 116, the delivery pipe 118 drives the two nozzles 111 plugged on the outer surface to rotate, and then the sand or other hard particles are transported to the sandblasting pipe 9 through the pressure of the external liquid pump, and then transported to the delivery pipe 118 through the sandblasting pipe 9 for diversion, and a part of it is diverted to the nozzle 111 in turn by the high-pressure air of the air pump, and then sprayed onto the inner wall of the pipeline through the spray hole, and then the continuous rotation of the delivery pipe 118 drives the nozzle 111 to revolve, so that the target surface can be covered. Every corner and hard-to-reach parts of the pipe are ensured to ensure that the entire surface can be treated, thereby improving the comprehensiveness and thoroughness of cleaning or surface treatment. The other part is diverted to the nozzle 114, and then the blasting area is expanded through the spiral guide port 115, so that the sandblasting can evenly cover the entire target surface, avoiding missed blasting or uneven blasting. When the pipe diameter is small, the connecting rod 1 and the connecting rod 2 cannot be fully expanded due to the limitation of the pipe diameter. In this case, the two start to rotate with the pin shaft between them as the center, driving the connecting rod 12 to slide in the arc-shaped port and the central axis of the pin shaft connected in the middle of the connecting rod 1 and the connecting rod 2 The connecting rod 1 and the connecting rod 2 rotate for a certain angle, and then during the rotation of the connecting rod 1 and the connecting rod 2, the rotation of the connecting rod 1 and the connecting rod 2 will drive the tension spring 4 to gradually shrink, so that the tension spring 4 is compressed during the rotation of the connecting rod 1 and the connecting rod 2, so that the whole gradually becomes more compact. As the tension spring 4 shrinks, the connecting rod 1 and the connecting rod 2 are gradually folded, so that the size of the whole gradually decreases, gradually adapting to the situation of smaller pipe diameters, and being able to walk inside it, so that cleaning work can be performed inside pipes of different diameters, which not only improves the application range of the sandblaster, but also reduces the need for adjustment to different pipe diameters, thereby improving the convenience and efficiency of operation.

[0030] It is worth noting that the specific model of the single chip microcomputer 15 disclosed in the above embodiment is S7-200, the motor 113 is recommended to use RS555, the battery 13 can use 6-GFM-100, the infrared receiver 14 is preferably CHQ0038K-1, and the single chip microcomputer 15 controls the motor 113, the battery 13 and the infrared receiver 14 using methods commonly used in the prior art.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic sandblasting device for the inner wall of a pipeline, characterized in that: It comprises a connecting rod 1 (1), a fixing rod (3) and a protective casing (10); Connecting rods (1): There are two of them. The middle parts of the inner sides of the two connecting rods (1) are rotatably connected to connecting rods (2) via pins. A rotating shaft (7) is rotatably connected between the left and right ends of the two connecting rods (2) and between the left and right ends of the two connecting rods (1). The outer ends of the rotating shafts (7) are fixedly sleeved with rollers (5). The outer surfaces of the rollers (5) are provided with evenly distributed anti-slip grooves (6). A fixing rod (3): the fixing rod (3) is respectively fixedly connected between the left lower ends of the two connecting rods 1 (1) and between the left upper ends of the two connecting rods 2 (2); a connecting plate (8) is fixedly connected to the middle of the fixing rod (3) at the lower end; a sandblasting tube (9) is fixedly connected to the upper surface of the connecting plate (8); a threaded groove (16) is provided inside the left end of the sandblasting tube (9); and a sandblasting mechanism (11) is provided on the right side of the sandblasting tube (9); A protective shell (10) is fixedly connected to the top end of the outer surface of the sandblasting tube (9). A storage battery (13) is provided on the right side of the top end of the outer surface of the sandblasting tube (9). The storage battery (13) is located inside the protective shell (10).

2. The automatic pipe inner wall sandblasting device according to claim 1, characterized in that: It also includes a single-chip microcomputer (15), which is arranged on the right side of the top end of the sandblasting tube (9), the single-chip microcomputer (15) is located inside the protective housing (10), and the output end of the single-chip microcomputer (15) is electrically connected to the input end of the storage battery (13).

3. The automatic pipe inner wall sandblasting device according to claim 2, characterized in that: It also includes an infrared receiver (14), which is arranged in the middle of the top end of the sandblasting tube (9), the infrared receiver (14) is located inside the protective shell (10), and the infrared receiver (14) is bidirectionally electrically connected to the single-chip computer (15).

4. The automatic pipe inner wall sandblasting device according to claim 1, characterized in that: The front and rear ends of the protective housing (10) are respectively fixedly connected to connecting rods (12), and the opposite outer ends of the connecting rods (12) are slidably connected to the arc-shaped opening of the adjacent connecting rod 1 (1).

5. The automatic pipe inner wall sandblasting device according to claim 1, characterized in that: It also includes a tension spring (4), wherein the tension spring (4) is fixedly connected between the first connecting rod (1) and the second connecting rod (2) at the left and right ends.

6. The automatic pipe inner wall sandblasting device according to claim 2, characterized in that: The sandblasting mechanism (11) comprises a bearing (116), a delivery pipe (118), a nozzle (111), a nozzle (114) and a spiral guide port (115); the delivery pipe (118) is rotatably connected to the inner wall of the right end of the sandblasting pipe (9) via the bearing (116); two nozzles (111) are respectively plugged into the upper and lower ends of the outer surface of the delivery pipe (118); the outer surfaces of the nozzles (111) are respectively provided with uniformly distributed spray holes; the right end of the delivery pipe (118) is fixedly connected to the nozzle (114); the outer surface of the nozzle (114) is provided with uniformly distributed spiral guide ports (115).

7. The automatic pipe inner wall sandblasting device according to claim 6, characterized in that: The sandblasting mechanism (11) further comprises a small-diameter gear (112), a motor (113) and a large-diameter gear (117); the motor (113) is mounted on the right side of the top end of the sandblasting tube (9) by means of bolts; the motor (113) is located inside the protective housing (10); the output shaft of the motor (113) extends to the outside of the right side surface of the protective housing (10); the output shaft of the motor (113) is fixedly sleeved on the small-diameter gear (112); the large-diameter gear (117) is fixedly sleeved on the left end of the conveying tube (118); the large-diameter gear (117) is meshedly connected to the small-diameter gear (112); and the input end of the motor (113) is electrically connected to the output end of the single-chip computer (15).

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