Lifting device for in-tank cleaning equipment

Abstract

The embodiment of the utility model provides a lifting device for in-tank cleaning equipment, and relates to the technical field of lifting devices. The lifting device for the in-tank cleaning equipment comprises a frame body, an extension arm, a driving assembly, a mounting arm, a pull rope and a supporting wheel assembly. The extension arm is mounted in the frame body in a sliding manner; the driving assembly is fixedly mounted on the frame body; the mounting arm is connected with the extension arm in a sliding connection manner; the supporting wheel assembly is fixedly connected to the upper end of the extension arm; one end of the pull rope is fixedly connected with the frame body, the pull rope is wound around the supporting wheel assembly, and the other end of the pull rope is fixedly connected with the mounting arm. Automatic lifting of the extension arm is achieved through the driving assembly, and the problem that time and labor are wasted due to manual lifting of the cleaning equipment is solved; and on the other hand, through the matched design of the pull rope and the supporting wheel assembly, the lifting stroke of the mounting arm is effectively prolonged.

Description

Technical Field

[0001] This invention relates to the field of lifting device technology, specifically to a lifting device for tank cleaning equipment. Background Technology

[0002] Tanks typically refer to sealed containers such as reaction vessels, storage tanks, and fermentation tanks, which are widely used in the pharmaceutical industry for drug production, storage, and fermentation processes. After use, the interior of the tank must be thoroughly cleaned to ensure that no residue adheres to the inner wall, preventing cross-contamination or affecting drug quality during subsequent use. Currently, the common method for cleaning tanks is to use specialized cleaning equipment to rinse or scrub the inner surface of the tank to remove dirt and residue.

[0003] However, existing cleaning processes have limitations because the tank openings typically face upwards. To clean the inside of the tank, it is usually necessary to manually lift the cleaning equipment to a suitable height, or use a single hydraulic cylinder lifting device to move the cleaning equipment up and down. Manual lifting is cumbersome, time-consuming, and labor-intensive, making it difficult to meet the high-efficiency cleaning needs of the pharmaceutical industry. While hydraulic cylinder lifting devices can achieve a certain degree of automation, their lifting stroke is limited by the cylinder length, making them unsuitable for cleaning deeper tanks. Extending the stroke by lengthening the cylinder can easily lead to decreased transmission stability, affecting the reliability and safety of the equipment. Furthermore, oil leaks during hydraulic cylinder use can directly contaminate the medicine inside the tank, leading to substandard drug quality or safety hazards. Utility Model Content

[0004] According to an embodiment of the present invention, a lifting device for an in-tank cleaning equipment is provided to solve the problems mentioned in the background art.

[0005] In a first aspect of the invention, a lifting device for an in-tank cleaning equipment is provided.

[0006] The lifting device for the tank cleaning equipment includes: a frame, an extension arm, a drive assembly, a mounting arm, a pull rope, and a support wheel assembly;

[0007] The extension arm is slidably mounted inside the frame.

[0008] The drive assembly is fixedly mounted on the frame and configured to drive the extension arm to extend and retract relative to the frame.

[0009] The mounting arm and the extension arm are connected by a sliding connection.

[0010] The support wheel assembly is fixedly connected to the upper end of the extension arm;

[0011] One end of the pull rope is fixedly connected to the frame, the pull rope is wrapped around the support wheel assembly, and the other end of the pull rope is fixedly connected to the mounting arm.

[0012] Preferably, the frame includes a base and two support arms with a U-shaped cross-section;

[0013] The two support arms are fixedly mounted on the base, and an installation space for accommodating the extension arm is formed between the two support arms.

[0014] Preferably, the drive assembly includes a first mounting base, a second mounting base, a drive motor, and a lead screw; the first mounting base is fixedly connected to the two support arms, the second mounting base is connected to the end of the two support arms away from the base, the lead screw is rotatably mounted between the first mounting base and the second mounting base, and the output end of the drive motor is connected to the lead screw to drive the lead screw to rotate.

[0015] Preferably, the extension arm is provided with a guide rail, and the mounting arm is slidably connected to the guide rail.

[0016] Preferably, the support wheel assembly includes two mounting plates and four rollers; the two mounting plates are fixedly connected to the extension arm respectively, and two rollers are rotatably mounted on each mounting plate; the number of pull ropes is two, and the pull ropes pass around the rollers.

[0017] Preferably, the support wheel assembly further includes four support rods, which are fixedly installed between the two mounting plates.

[0018] Preferably, a third mounting base is fixedly installed on the frame, and one end of the pull rope is fixedly connected to the third mounting base.

[0019] Preferably, the cross-section of the extension arm is rectangular.

[0020] Preferably, two support wheels are installed at the upper end of the frame, and the two support wheels are in contact with the side of the extension arm.

[0021] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0022] This invention provides a lifting device for tank cleaning equipment. Through a drive assembly, it automates the lifting of an extension arm, avoiding the time-consuming and labor-intensive process of manually lifting the cleaning equipment and improving cleaning efficiency. Furthermore, the coordinated design of the pull rope and support wheel assemblies effectively extends the lifting stroke of the mounting arm, overcoming the limited stroke limitation of single-screw lifting devices and avoiding the stability reduction caused by lengthened transmission components. This simple and compact structure is suitable for cleaning tanks of varying depths and has high practical value.

[0023] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0024] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0025] Figure 1 A first-view perspective perspective schematic diagram of the lifting device for an in-tank cleaning apparatus according to an embodiment of the present invention is shown;

[0026] Figure 2 A second perspective perspective three-dimensional structural schematic diagram of a lifting device for an in-tank cleaning apparatus according to an embodiment of the present invention is shown;

[0027] Figure 3 An exploded structural schematic diagram of a lifting device for a tank cleaning apparatus according to an embodiment of the present invention is shown;

[0028] Figure 4 A three-dimensional structural schematic diagram of the support wheel assembly of a lifting device for an in-tank cleaning equipment according to an embodiment of the present invention is shown.

[0029] Explanation of reference numerals in the attached figures

[0030] 1-Frame, 11-Base, 12-Support arm, 13-Third mounting seat, 14-Support wheel, 2-Extension arm, 21-Guide rail, 3-Drive assembly, 31-First mounting seat, 32-Second mounting seat, 33-Drive motor, 34-Screw, 4-Mounting arm, 5-Pull rope, 6-Support wheel assembly, 61-Mounting plate, 62-Roller, 63-Support rod. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0033] like Figures 1 to 4 As shown, the lifting device for the tank cleaning equipment aims to solve the problems of time-consuming and labor-intensive manual lifting and limited screw lifting stroke in the prior art. The structure and working principle of the device are described in detail below with reference to specific embodiments.

[0034] The lifting device for the tank cleaning equipment includes a frame 1, an extension arm 2, a drive assembly 3, a mounting arm 4, a pull rope 5, and a support wheel assembly 6. Specifically, the frame 1 serves as the main support structure of the device, used to fix and support other components; the extension arm 2 is slidably installed inside the frame 1, capable of telescoping along the longitudinal direction of the frame 1; the drive assembly 3 is fixedly installed on the frame 1 and configured to drive the extension arm 2 to move up and down relative to the frame 1 via mechanical transmission. The drive assembly 3 can adopt existing drive forms such as a motor with a gear and rack mechanism, a hydraulic cylinder, or a pneumatic cylinder. Those skilled in the art can select a suitable drive method according to actual needs.

[0035] The mounting arm 4 is connected to the extension arm 2 via a sliding connection, allowing the mounting arm 4 to slide relative to the extension arm 2 along its length. The mounting arm 4 is used to mount a cleaning device (not shown in the figure), which includes at least a cleaning nozzle for rinsing or scrubbing the inner wall of the tank. The specific structure and function of the mounting arm 4 are equivalent to the telescopic arm disclosed in Chinese Patent Publication No. CN221734338U, and it can be provided with fixing holes or clamping mechanisms to mount the cleaning device. The support wheel assembly 6 is fixedly connected to the upper end of the extension arm 2, and typically includes at least one roller or pulley for guiding and supporting the movement of the pull rope 5. One end of the pull rope 5 is fixedly connected to the frame 1, and the other end passes through the support wheel assembly 6 and is fixedly connected to the mounting arm 4. The pull rope 5 can be made of high-strength steel wire rope, nylon rope, or other tensile-resistant materials to ensure the stability and reliability of the transmission.

[0036] The working principle of this device is as follows: In actual use, the drive assembly 3 starts and drives the extension arm 2 to move upward along the frame 1, that is, to extend relative to the frame 1. Since the support wheel assembly 6 is fixed to the upper end of the extension arm 2, when the extension arm 2 moves upward, the support wheel assembly 6 moves upward synchronously. During this process, the support wheel assembly 6 drives the pull rope 5 wrapped around it to move. Since one end of the pull rope 5 is fixed to the frame 1 and its length remains unchanged, the upward movement of the support wheel assembly 6 will pull the other end of the pull rope 5 to pull the mounting arm 4 to slide upward relative to the extension arm 2. Therefore, this device achieves the upward movement of the mounting arm 4 through the direct lifting and lowering movement of the extension arm 2 and the indirect traction of the pull rope 5. Specifically, when the extension arm 2 extends upward a certain distance, the upward movement height of the mounting arm 4 is the sum of the extension amount of the extension arm 2 and the additional displacement generated by the traction of the pull rope 5, so that the actual lifting stroke of the mounting arm 4 is significantly greater than the extension amount of the extension arm 2.

[0037] On the one hand, the automated lifting and lowering of the extension arm 2 is achieved through the drive component 3, avoiding the time-consuming and labor-intensive problem of manually lifting the cleaning equipment and improving cleaning efficiency. On the other hand, the coordinated design of the pull rope 5 and the support wheel assembly 6 effectively extends the lifting stroke of the mounting arm 4, overcoming the limitation of the stroke of a single screw lifting device, while avoiding the stability reduction problem caused by lengthening the transmission components. This structure is simple and compact, suitable for the cleaning needs of tanks of different depths, and has high practical value.

[0038] On the other hand, the coordinated design of the pull rope 5 and the support wheel assembly 6 effectively extends the lifting stroke of the mounting arm 4, overcoming the limitation of the stroke of a single screw lifting device, while avoiding the stability reduction problem caused by the lengthening of transmission components. In addition, the device uses a mechanical drive method (such as a motor with a gear and rack mechanism) instead of a hydraulic cylinder, avoiding the risk of drug contamination that may be caused by oil leakage from the hydraulic cylinder, and ensuring cleanliness and safety in the pharmaceutical manufacturing process.

[0039] In this embodiment, the frame 1 includes a base 11 and two U-shaped support arms 12. The base 11 serves as the bottom support structure of the frame 1, used to fix the device and provide stability. The two support arms 12 are fixed to the upper surface of the base 11 by welding, bolting, or other fixing methods, and the two support arms 12 are arranged in parallel with their U-shaped openings facing each other or back to back, thereby defining an installation space between the two support arms 12 to accommodate the extension arm 2. The extension arm 2 is slidably installed between the two support arms 12, and its shape is adapted to the inner cavity of the U-shaped support arm 12 to ensure the guidance and stability of the extension arm 2 during sliding.

[0040] In this embodiment, the drive assembly 3 includes a first mounting base 31, a second mounting base 32, a drive motor 33, and a lead screw 34. Specifically, the first mounting base 31 is fixedly connected to the two support arms 12 by bolts or welding, and is usually located on the side near the base 11 to support the lower end of the drive assembly 3; the second mounting base 32 is fixedly connected to the end of the two support arms 12 away from the base 11 (i.e., the upper end), and is used to support the upper end of the drive assembly 3. The lead screw 34 is rotatably mounted between the first mounting base 31 and the second mounting base 32 by bearings or other rotating support structures, and its axis is parallel to the length direction of the support arm 12 to achieve precise driving of the extension arm 2. The drive motor 33 is fixedly mounted on the first mounting base 31, and its output end is connected to one end of the lead screw 34 through a coupling or gear transmission mechanism to drive the lead screw 34 to rotate around its axis. The drive motor 33 is preferably a servo motor or a stepper motor to provide stable speed and torque, but those skilled in the art can also select other types of motors according to actual needs.

[0041] Furthermore, the extension arm 2 is provided with a nut structure (not shown in the figure) that cooperates with the lead screw 34. This nut structure is threadedly engaged with the lead screw 34. When the drive motor 33 starts, its output end drives the lead screw 34 to rotate. The rotation of the lead screw 34 drives the nut structure to move axially along the lead screw 34 through threaded transmission, thereby causing the extension arm 2 to extend and retract relative to the frame 1. Specifically, when the lead screw 34 rotates in the forward direction, the extension arm 2 slides upward along the support arm 12 and extends relative to the frame 1; when the lead screw 34 rotates in the reverse direction, the extension arm 2 slides downward along the support arm 12 and retracts into the frame 1. Through the precise cooperation between the lead screw 34 and the nut structure, the drive assembly 3 can achieve smooth lifting and lowering of the extension arm 2, and the lifting position is controllable to meet the cleaning needs at different heights.

[0042] In this embodiment, a guide rail 21 is provided on the extension arm 2, and the mounting arm 4 is connected to the guide rail 21 by a sliding connection. Specifically, a slider (not shown in the figure) is fixedly connected to the mounting arm 4. The slider slides in cooperation with the guide rail 21, which extends along the length of the extension arm 2. The guide rail 21 is preferably a linear guide rail or a ball bearing guide rail to ensure the smoothness and stability of the mounting arm 4 when sliding relative to the extension arm 2. The slider is fixed to the mounting arm 4 by bolts or welding, and its interior may be provided with balls or slider bushings to reduce frictional resistance. Through the cooperation of the guide rail 21 and the slider, the mounting arm 4 can achieve precise up and down movement on the extension arm 2, avoiding deviation or vibration during operation, thereby improving the positioning accuracy of the cleaning device.

[0043] In this embodiment, the support wheel assembly 6 includes two mounting plates 61 and four rollers 62. Specifically, the two mounting plates 61 are fixedly connected to the upper end of the extension arm 2 by bolts or welding, and the two mounting plates 61 are arranged parallel to each other on both sides of the extension arm 2. Each mounting plate 61 has two rollers 62 rotatably mounted on it via bearings or shafts, allowing each roller 62 to rotate freely around its own axis. There are two pull ropes 5, each of which passes over the two rollers 62 on the corresponding side, forming a stable traction path. When the support wheel assembly 6 moves upward with the extension arm 2, the pull ropes 5 move relative to each other under the guidance of the rollers 62, while the rollers 62 rotate to reduce the frictional resistance between the pull ropes 5 and the rollers 62, thereby ensuring the smoothness of the traction process and the service life of the pull ropes 5.

[0044] Furthermore, the support wheel assembly 6 also includes four support rods 63. The support rods 63 are fixedly installed between the two mounting plates 61, preferably by bolts or welding, to form a stable frame structure. Specifically, the four support rods 63 are respectively arranged at the four corners of the mounting plates 61, with their ends connected to the two mounting plates 61 respectively, thereby enhancing the rigidity and stability between the two mounting plates 61, preventing deformation or displacement during the pulling of the rope 5 or the movement of the extension arm 2, and ensuring the overall reliability of the support wheel assembly 6.

[0045] In this embodiment, a third mounting base 13 is fixedly installed on the frame 1. The third mounting base 13 is preferably located near the upper end of the frame 1 and is fixedly connected to the support arm 12 by bolts or welding. One end of the pull rope 5 is fixedly connected to the third mounting base 13, for example, by a rope buckle, bolts, or clamping device to ensure that the pull rope 5 can withstand sufficient tension during traction.

[0046] In this embodiment, the extension arm 2 has a rectangular cross-section. This rectangular cross-section not only improves the structural strength and bending resistance of the extension arm 2, but also facilitates its installation and matching with the inner cavity of the U-shaped support arm 12 and the guide rail 21, ensuring the stability of the extension arm 2 during telescopic movement. Furthermore, the rectangular cross-section design also helps in the precise alignment of the slider and the guide rail 21.

[0047] In this embodiment, two support wheels 14 are installed on the upper end of the frame 1, and the two support wheels 14 respectively roll in contact with the side of the extension arm 2. Specifically, the support wheels 14 are fixed to the upper ends of the two support arms 12 by brackets or bearings, and their wheel surfaces are tangent to the outer side of the extension arm 2, providing lateral support when the extension arm 2 extends or retracts relative to the frame 1. The support wheels 14 are preferably roller structures, and their rolling action can reduce the friction between the extension arm 2 and the support arm 12, while limiting the lateral sway of the extension arm 2, thereby significantly improving the smoothness and stability of the extension movement of the extension arm 2.

[0048] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A lifting device for a tank cleaning apparatus, characterized by include: Frame (1), extension arm (2), drive assembly (3), mounting arm (4), pull rope (5) and support wheel assembly (6); The extension arm (2) is slidably installed inside the frame (1); The drive assembly (3) is fixedly installed on the frame (1) and configured to drive the extension arm (2) to extend and retract relative to the frame (1); The mounting arm (4) and the extension arm (2) are connected by a sliding connection. The support wheel assembly (6) is fixedly connected to the upper end of the extension arm (2); One end of the pull rope (5) is fixedly connected to the frame (1), the pull rope (5) passes around the support wheel assembly (6), and the other end of the pull rope (5) is fixedly connected to the mounting arm (4).

2. The lifting device for a tank cleaning apparatus according to claim 1, characterized by The frame (1) includes a base (11) and two support arms (12) with a U-shaped cross-section. The two support arms (12) are fixedly mounted on the base (11), and an installation space for accommodating the extension arm (2) is formed between the two support arms (12).

3. The lifting device for a tank cleaning apparatus according to claim 2, characterized by The drive assembly (3) includes a first mounting base (31), a second mounting base (32), a drive motor (33), and a lead screw (34); the first mounting base (31) is fixedly connected to the two support arms (12), the second mounting base (32) is connected to the end of the two support arms (12) away from the base (11), the lead screw (34) is rotatably mounted between the first mounting base (31) and the second mounting base (32), and the output end of the drive motor (33) is connected to the lead screw (34) to drive the lead screw (34) to rotate.

4. The apparatus according to claim 1, wherein The extension arm (2) is provided with a guide rail (21), and the mounting arm (4) is slidably connected to the guide rail (21).

5. The apparatus according to claim 1, wherein The support wheel assembly (6) includes two mounting plates (61) and four rollers (62); the two mounting plates (61) are fixedly connected to the extension arm (2) respectively, and two rollers (62) are rotatably mounted on each mounting plate (61); there are two pull ropes (5), and the pull ropes (5) pass around the rollers (62).

6. The apparatus according to claim 5, wherein The support wheel assembly (6) also includes four support rods (63), which are fixedly installed between the two mounting plates (61).

7. The apparatus according to claim 1, wherein A third mounting base (13) is fixedly installed on the frame (1), and one end of the pull rope (5) is fixedly connected to the third mounting base (13).

8. The apparatus according to claim 1, wherein The cross-section of the extension arm (2) is rectangular.

9. The apparatus according to claim 1, wherein Two support wheels (14) are installed at the upper end of the frame (1), and the two support wheels (14) are in contact with the side of the extension arm (2).

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