A double arm device for in-tank cleaning

Abstract

The utility model relates to the technical field of tank cleaning, especially a double-arm device for tank cleaning, comprising: a control box; two groups of extension arm assemblies, one end of each group of extension arm assemblies being fixedly connected to the surface of the control box; a telescopic control structure arranged inside the control box and fixedly connected to the extension arm assemblies for controlling the extension and retraction of the extension arm assemblies. The extension arm assemblies are used to send the cleaning spray heads to the inside of the tank body, two groups of cleaning spray heads can be installed by using the two groups of extension arm assemblies in opposite directions, the cleaning range is improved, both sides can be cleaned simultaneously during cleaning, the rotating structure is not needed for cooperation, and the cleaning speed is improved.

Description

Technical Field

[0001] This utility model relates to the field of tank cleaning technology, specifically a double-arm device for tank cleaning. Background Technology

[0002] Tanks, as sealed containers for storing liquids or gases, are widely used in pressure vessels such as urban gas storage tanks and tank containers. Tanks include fermentation tanks and reaction vessels. After prolonged use, tanks need to be cleaned internally, which requires the use of tank cleaning devices.

[0003] However, existing tank cleaning devices use a single arm to send the cleaning nozzle into the tank to clean the inner wall of the tank. However, since most single arms are fixed structures, they can only clean in one direction, resulting in a limited cleaning range. Therefore, a rotating structure is needed to achieve a comprehensive cleaning. Furthermore, the single-arm cleaning process is time-consuming, leading to a slow cleaning speed. Utility Model Content

[0004] The purpose of this invention is to solve the problem of slow cleaning speed caused by the inability of existing tank cleaning devices to perform rapid cleaning.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A dual-arm device for tank cleaning, comprising: Control box; Two sets of extension arm assemblies, one end of each set of extension arm assemblies is fixedly connected to the control box; A telescopic control structure is fixedly connected to the extension arm assembly and is used to control the telescopic extension of the extension arm assembly.

[0006] Preferably, each set of the extension arm assemblies includes: A fixed arm, one end of which is fixedly connected to the control box; A basic arm, one end of which is rotatably connected to the end of the fixed arm away from the control box; Telescopic arm, one end of which extends into the interior of the basic arm (5) and is slidably connected to the basic arm (5).

[0007] Preferably, the telescopic arm includes: The three-section arm has one end extending into the interior of the base arm and slidably connected to the base arm; The two-section arm has one end extending into the interior of the three-section arm and being slidably connected to it. A first arm, one end of which extends into the interior of the second arm and is slidably connected to the second arm.

[0008] Preferably, the telescopic control structure includes: An extension assembly is disposed inside the lower part of the control box; the extension assembly is fixedly connected to the surface of the first arm section for extending the first arm section. A retractable assembly is disposed in the control box and located above the extension assembly; one end of the retractable assembly is fixedly connected to the end of the first arm near the fixed arm.

[0009] Preferably, the extension component includes: An extension wheel is located inside the lower part of the control box, and the axis of the extension wheel is rotatably connected to the control box. Two sets of first guide wheels are both located inside the control box at the upper part, and at one end close to the fixed arm; the axis of the first guide wheel is rotatably connected to the control box; Six sets of anchor wheels are respectively set at both ends of the second-section arm and the third-section arm, as well as at the end of the basic arm away from the fixed arm and the end of the first-section arm close to the fixed arm; An extension wire rope is provided, one end of which is fixedly connected to the surface of the extension wheel, and the other end is fixedly connected to the anchor wheel on the first section of the arm; the extension wire rope passes through the first guide wheel and the remaining anchor wheels in sequence.

[0010] Preferably, the shrinkage component includes: A retractable wheel is located inside the control box and directly above the extension wheel; the axis of the retractable wheel is rotatably connected to the control box. Two sets of second guide wheels, each set of second guide wheels is positioned above the first guide wheel and is rotatably connected to the control box; A retractable steel wire rope, one end of which is fixedly connected to the surface of the retractable wheel, and the other end of which is fixedly connected to the end of the arm section near the fixed arm.

[0011] Preferably, it further includes: a conveying structure; the conveying structure is disposed above the control box and fixedly connected to the control box; the conveying structure includes: The first gear, the axis of which is rotatably connected to the control box; Two sets of second gears are symmetrically arranged on the edge of the first gear and mesh with the first gear; Two sets of fourth guide wheels, the axis of each set of fourth guide wheels is fixedly connected to the axis of the second gear; a water pipe is provided between the two sets of fourth guide wheels; The motor, the output end of which is fixedly connected to the shaft of the first gear.

[0012] Preferably, it further includes: multiple sets of limiting members; the multiple sets of limiting members are fixedly connected to one side of the extension arm assembly; the surface of the limiting member is provided with a through hole, so that the water pipe can pass through the through hole.

[0013] Preferably, it further includes: a third guide wheel; the third guide wheel is disposed at the end of the extension arm assembly away from the control box.

[0014] Preferably, it further includes: a can lid; the can lid is sleeved on the outside of the extension arm assembly and is fixedly connected to the control box.

[0015] The beneficial effects proposed by this utility model are as follows: the cleaning nozzle is delivered into the tank through the extension arm assembly, and two sets of cleaning nozzles can be installed by using two sets of extension arm assemblies in opposite directions, which increases the cleaning range and allows both sides to be cleaned at the same time during cleaning, eliminating the need for a rotating structure to cooperate, and also increasing the cleaning speed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A three-dimensional schematic diagram of the internal connection structure; Figure 3 for Figure 1 Enlarged 3D schematic diagram of the central connecting structure; Figure 4 for Figure 1 Schematic diagram of the connection structure of the first, second, and third sections of the boom; Figure 5 for Figure 4 A three-dimensional schematic diagram of the internal connection structure; Figure 6 for Figure 5 Schematic diagram of the connection structure at point A in the middle; Figure 7 for Figure 5 Schematic diagram of the connection structure at point B.

[0017] In the diagram: 1. First arm section, 2. Second arm section, 3. Third arm section, 4. Limiting component, 5. Basic arm, 6. Control box, 7. Extension wheel, 8. First guide wheel, 9. Extension wire rope, 10. Fixed arm, 11. Can lid, 12. Anchor wheel, 13. Retraction wheel, 14. Second guide wheel, 15. Retraction wire rope, 16. Third guide wheel, 17. First gear, 18. Second gear, 19. Fourth guide wheel, 20. Motor. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] This embodiment:

[0020] Please see Figure 1-7 In this embodiment: a dual-arm device for tank cleaning includes: a control box 6, two sets of extension arm assemblies and a telescopic control structure.

[0021] In this embodiment, one end of each extension arm assembly is fixedly connected to the control box 6.

[0022] In this embodiment, a cleaning water pipe and a cleaning nozzle are installed on the outside of the extension arm assembly. The cleaning nozzle is delivered into the tank through the extension arm assembly. By using two sets of extension arm assemblies in opposite directions, two sets of cleaning nozzles can be installed, which increases the cleaning range and allows both sides to be cleaned at the same time during cleaning. There is no need for a rotating structure to cooperate, which also improves the cleaning speed.

[0023] The telescopic control structure is fixedly connected to the extension arm assembly and is used to control the extension and retraction of the extension arm assembly.

[0024] In this embodiment, the telescopic control structure can control the extension and retraction of the extension arm assembly to facilitate cleaning.

[0025] like Figure 1 and Figure 4 As shown, each extension arm assembly includes: a fixed arm 10, a basic arm 5, a three-section arm 3, a two-section arm 2, and a one-section arm 1.

[0026] One end of the fixed arm 10 is fixedly connected to the control box 6; one end of the basic arm 5 is rotatably connected to the end of the fixed arm 10 away from the control box 6.

[0027] In this embodiment, a self-locking structure is provided at the connection between the basic arm 5 and the fixed arm 10, which can stop the basic arm 5 and the fixed arm 10 at any angle; this self-locking structure can be a combination of a bidirectional ratchet and a locking pin, or other structures, as long as they can achieve self-locking.

[0028] Telescopic arm, one end of which extends into the interior of the basic arm (5) and is slidably connected to the basic arm (5).

[0029] The telescopic arm includes: a three-section arm 3, a two-section arm 2, and a one-section arm 1.

[0030] One end of the three-section arm 3 retracts into the interior of the basic arm 5 and is slidably connected to the basic arm 5; one end of the two-section arm 2 retracts into the interior of the three-section arm 3 and is slidably connected to the three-section arm 3; one end of the one-section arm 1 retracts into the interior of the two-section arm 2 and is slidably connected to the two-section arm 2.

[0031] In this embodiment, when extension is required, the first arm 1 extends first. When the first arm 1 reaches its limit, it will drive the second arm 2 to extend. When the second arm 2 reaches its limit, it will drive the third arm 3 to extend.

[0032] like Figure 2 and Figure 5 As shown, the telescopic control structure includes an extension component and a retraction component.

[0033] Specifically, the extension assembly is located inside the lower part of the control box 6; the extension assembly is fixedly connected to the surface of the arm 1 to extend the arm 1.

[0034] In this embodiment, the extension arm assembly can be extended by the extension component.

[0035] The retraction assembly is located in the control box 6 and above the extension assembly; one end of the retraction assembly is fixedly connected to the end of a section arm 1 near the fixed arm 10.

[0036] In this embodiment, the extended arm assembly can be retracted by the retraction component.

[0037] like Figure 2 and Figure 6 As shown, the extension assembly includes: an extension wheel 7, two sets of first guide wheels 8, six sets of anchor point wheels 12, and an extension steel wire rope 9.

[0038] The extension wheel 7 is located inside the lower part of the control box 6, and the axis of the extension wheel 7 is rotatably connected to the control box 6.

[0039] In this embodiment, when the extension wheel 7 rotates, the extension wire rope 9 can be wound up or unwound. When the extension wire rope 9 is wound up, the extension arm assembly will extend. A first servo motor is provided behind the extension wheel 7, which can change the rotation direction of the extension wheel 7.

[0040] Both sets of first guide wheels 8 are located inside the control box 6 at the top and at one end near the fixed arm 10; the axis of the first guide wheel 8 is rotatably connected to the control box 6.

[0041] In this embodiment, the first guide wheel 8 can control the position of the extension wire rope 9.

[0042] Six sets of anchor wheels 12 are respectively set at both ends of the second-section arm 2 and the third-section arm 3, as well as at the end of the basic arm 5 away from the fixed arm 10 and the end of the first-section arm 1 close to the fixed arm 10; one end of the extension steel wire rope 9 is fixedly connected to the surface of the extension wheel 7, and the other end is fixedly connected to the anchor wheel 12 on the first-section arm 1; the extension steel wire rope 9 passes through the first guide wheel 8 and the remaining anchor wheels 12 in sequence.

[0043] In this embodiment, when the extension wire rope 9 retracts, since the distance from the anchor wheel 12 on the second arm 2 to the fixed arm 10 is greater than the distance from the end of the extension wire rope 9 to the fixed arm 10, the first arm 1 can be extended away from the fixed arm 10; after the first arm 1 is extended to its limit, the second arm 2 can be extended by relying on the anchor wheel 12 on the third arm 3; after the second arm 2 is extended to its limit, the third arm 3 can be extended by relying on the anchor wheel 12 on the basic arm 5.

[0044] like Figure 2 and Figure 7 As shown, the shrinking assembly includes: a shrinking wheel 13, two sets of second guide wheels 14, and a shrinking wire rope 15.

[0045] The retraction wheel 13 is located inside the control box 6 and directly above the extension wheel 7; the axis of the retraction wheel 13 is rotatably connected to the control box 6.

[0046] In this embodiment, when the retraction wheel 13 rotates, the retraction wire rope 15 can be wound up or unwound. When the retraction wire rope 15 is wound up, the extension arm assembly will retract. A second servo motor is provided behind the retraction wheel 13, which can change the rotation direction of the retraction wheel 13.

[0047] Each set of second guide wheels 14 is positioned above the first guide wheel 8 and is rotatably connected to the control box 6.

[0048] In this embodiment, the second guide wheel 14 can control the direction of the retracting wire rope 15.

[0049] One end of the retractable steel wire rope 15 is fixedly connected to the surface of the retractable wheel 13, and the other end is fixedly connected to the end of a section arm 1 near the fixed arm 10.

[0050] In this embodiment, when the retractable wire rope 15 is wound up, a section of arm 1 can be pulled to move closer to the fixed arm 10.

[0051] like Figure 3 As shown, the double-arm device for tank cleaning also includes: a conveying structure; the conveying structure is located above the control box 6 and is fixedly connected to the control box 6; the conveying structure includes: a first gear 17, two sets of second gears 18, two sets of fourth guide wheels 19 and a motor 20.

[0052] The shaft of the first gear 17 is rotatably connected to the control box 6.

[0053] In this embodiment, the control box 6 can support the rotation of the first gear 17.

[0054] Two sets of second gears 18 are symmetrically arranged on the edge of the first gear 17 and mesh with the first gear 17.

[0055] In this embodiment, when the first gear 17 rotates, it will drive the two sets of second gears 18 to rotate.

[0056] The axis of each set of fourth guide wheels 19 is fixedly connected to the axis of the second gear 18; a water pipe is installed between the two sets of fourth guide wheels 19.

[0057] In this embodiment, when the second gear 18 rotates, it will drive the fourth guide wheel 19 to rotate synchronously, and the fourth guide wheel 19 will control the direction of the water pipe extension and retraction.

[0058] The output end of the motor 20 is fixedly connected to the shaft of the first gear 17.

[0059] In this embodiment, the model of motor 20 is selected according to actual needs, as long as it meets the working conditions; the output end of motor 20 can drive the first gear 17 to rotate.

[0060] like Figure 4 As shown, the double-arm device for tank cleaning also includes: multiple sets of limiting members 4; multiple sets of limiting members 4 are fixedly connected to one side of the extension arm assembly; the surface of the limiting member 4 is provided with a through hole so that the water pipe can pass through the through hole.

[0061] The water pipe for cleaning can be installed on the extension arm assembly via the limiting member 4; a cleaning nozzle is installed at the end of the water pipe away from the fixed arm 10, which can clean the inside of the tank.

[0062] like Figure 4 As shown, the double-arm device for tank cleaning also includes a third guide wheel 16; the third guide wheel 16 is located at the end of the extension arm assembly away from the control box 6.

[0063] In this embodiment, the cleaning nozzle changes direction via the third guide wheel 16.

[0064] like Figure 3 As shown, the double-arm device for cleaning inside the tank also includes: a tank cover 11; the tank cover 11 is sleeved on the outside of the extension arm assembly and is fixedly connected to the control box 6.

[0065] In this embodiment, the can lid 11 is fastened to the mouth of the can to prevent water droplets from spraying out.

[0066] Working principle: When using the double-arm cleaning device for the tank, the water pipes for cleaning are passed through the through holes on the surface of the limiting member 4 in sequence, and the cleaning nozzles are passed through the third guide wheel 16, and the device is moved to the tank opening.

[0067] When extension is required, the first servo motor is activated, which causes the extension wheel 7 to rotate and wind up the extension wire rope 9. Since the distance from the anchor wheel 12 on the second arm 2 to the fixed arm 10 is greater than the distance from the end of the extension wire rope 9 to the fixed arm 10, the first arm 1 can be extended away from the fixed arm 10. After the first arm 1 is extended to its limit, the second arm 2 can be extended by the anchor wheel 12 on the third arm 3. After the second arm 2 is extended to its limit, the third arm 3 can be extended by the anchor wheel 12 on the base arm 5. During this process, the retraction wheel 13 will release the line at the same speed.

[0068] During this process, the cleaning nozzle will move, and the motor 20 will be started at the same time. The output end of the motor 20 will drive the first gear 17 to rotate, the first gear 17 will drive the second gear 18 to rotate, and the second gear 18 will drive the fourth guide wheel 19 to rotate, which can deliver water pipes for the movement of the cleaning nozzle.

[0069] During cleaning, clean water is supplied to the cleaning nozzle through the water pipe to perform high-pressure rinsing on the inner wall of the tank. The external second servo motor is activated, causing the output end of the second servo motor to drive the shrink wheel 13 to rotate and wind up the shrink wire rope 15. The shrink wire rope 15 will drive a section of arm 1 to move closer to the fixed arm 10, changing the cleaning position. During this process, the extension wheel 7 will release the line at the same speed.

[0070] The cleaning nozzles are delivered into the tank via the extension arm assembly. Two sets of extension arm assemblies in opposite directions can be used to install two sets of cleaning nozzles, increasing the cleaning range and allowing simultaneous cleaning of both sides without the need for a rotating structure. This also increases the cleaning speed, completing the use of this device.

[0071] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A two-arm device for in-tank cleaning, characterized by: include: Control box (6); Two sets of extension arm assemblies, one end of each set of extension arm assemblies is fixedly connected to the control box (6); A telescopic control structure is fixedly connected to the extension arm assembly and is used to control the telescopic extension of the extension arm assembly.

2. The two-arm device for cleaning inside a tank according to claim 1, characterized in that: Each of the aforementioned extension arm assemblies includes: Fixed arm (10), one end of which is fixedly connected to the control box (6); A basic arm (5), one end of which is rotatably connected to the end of the fixed arm (10) away from the control box (6); Telescopic arm, one end of which extends into the interior of the basic arm (5) and is slidably connected to the basic arm (5).

3. The double-arm device for tank cleaning according to claim 2, characterized in that: The telescopic arm includes: Three-section arm (3), one end of which extends into the interior of the basic arm (5) and is slidably connected to the basic arm (5); Two-section arm (2), one end of which extends into the interior of the three-section arm (3) and is slidably connected to the three-section arm (3); One arm (1), one end of which extends into the interior of the second arm (2) and is slidably connected to the second arm (2).

4. The double-arm device for tank cleaning according to claim 3, characterized in that: The telescopic control structure includes: An extension assembly is disposed inside the lower part of the control box (6); the extension assembly is fixedly connected to the surface of the first arm (1) for extending the first arm (1); A retractable assembly is disposed in the control box (6) and located above the extension assembly; one end of the retractable assembly is fixedly connected to one end of the first arm (1) near the fixed arm (10).

5. The double-arm device for tank cleaning according to claim 4, characterized in that: The extension component includes: An extension wheel (7) is located inside the lower part of the control box (6), and the axis of the extension wheel (7) is rotatably connected to the control box (6); Two sets of first guide wheels (8) are both located inside the control box (6) and above it, and are located at one end close to the fixed arm (10); the axis of the first guide wheel (8) is rotatably connected to the control box (6); Six sets of anchor wheels (12) are respectively set at both ends of the two-section arm (2) and the three-section arm (3), as well as at the end of the basic arm (5) away from the fixed arm (10) and at the end of the one-section arm (1) close to the fixed arm (10); The extension wire rope (9) is fixedly connected at one end to the surface of the extension wheel (7) and at the other end to the anchor wheel (12) on the first arm (1); the extension wire rope (9) passes through the first guide wheel (8) and the remaining anchor wheels (12) in sequence.

6. The double-arm device for tank cleaning according to claim 5, characterized in that: The shrinkage component includes: The retractable wheel (13) is located inside the control box (6) and directly above the extension wheel (7); the axis of the retractable wheel (13) is rotatably connected to the control box (6); Two sets of second guide wheels (14), each set of second guide wheels (14) is disposed above the first guide wheel (8) and is rotatably connected to the control box (6); A retractable wire rope (15) is provided, with one end of the retractable wire rope (15) fixedly connected to the surface of the retractable wheel (13) and the other end fixedly connected to the end of the first arm (1) near the fixed arm (10).

7. The double-arm device for tank cleaning according to claim 1, characterized in that: Also includes: A conveying structure; the conveying structure is disposed above the control box (6) and is fixedly connected to the control box (6); the conveying structure includes: The first gear (17) is rotatably connected to the control box (6); Two sets of second gears (18) are symmetrically arranged on the edge of the first gear (17) and mesh with the first gear (17); Two sets of fourth guide wheels (19), the axis of each set of fourth guide wheels (19) is fixedly connected to the axis of the second gear (18); a water pipe is provided between the two sets of fourth guide wheels (19); The motor (20) is fixedly connected to the shaft of the first gear (17) at its output end.

8. The double-arm device for tank cleaning according to claim 7, characterized in that: Also includes: Multiple sets of limiting members (4); the multiple sets of limiting members (4) are fixedly connected to one side of the extension arm assembly; The surface of the limiting member (4) is provided with a through hole, so that the water pipe can pass through the through hole.

9. The double-arm device for tank cleaning according to claim 1, characterized in that: Also includes: The third guide wheel (16) is located at the end of the extension arm assembly away from the control box (6).

10. The double-arm device for tank cleaning according to claim 1, characterized in that: Also includes: Can lid (11); the can lid (11) is fitted on the outside of the extension arm assembly and is fixedly connected to the control box (6).

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