A coating roll trolley arrangement for ease of disassembly
By introducing a load-bearing limit component into the coating roller trolley device, the problems of hydraulic cylinder bearing pressure and coating roller sliding collision were solved, thereby improving equipment reliability and coating roller stability, extending equipment life and improving product quality.
Patent Information
- Application Number
- CN202522206840.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-17
AI Technical Summary
When the existing manual hydraulic lifting trolley is carrying the coating roller, the hydraulic cylinder is easily damaged by instantaneous heavy pressure, and the coating roller is prone to sliding or collision during the movement, which affects the quality of the coated product and the life of the equipment.
A coating roller trolley device for easy disassembly was designed. The load-bearing limiting component forms a load-bearing support when the placement platform is raised, reducing the load pressure on the hydraulic cylinder, and limits the coating roller during movement to prevent slippage and collision.
It effectively protects the hydraulic cylinder from the impact of the coating roller's gravity, extends the equipment's lifespan, reduces the risk of coating roller damage, and ensures the integrity of the coating roller and product quality.
Smart Images

Figure CN224676135U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of trolley devices, and in particular relates to a coating roller trolley device that is easy to disassemble. Background Technology
[0002] In the coating processing industry, coating rollers are core components and require trolley devices for handling, transfer, and movement between maintenance stations within the workshop. Currently, the industry commonly uses manual hydraulic lifting trolleys to carry coating rollers. These trolleys mainly rely on hydraulic cylinders to drive the lifting and lowering of the placement platform to adapt to different operational needs at different heights.
[0003] However, existing manual hydraulic lifting trolleys have two major problems in practical applications: First, insufficient load-bearing reliability. The coating roller itself is quite heavy, and when the platform is raised to support the coating roller, the impact force of the coating roller falling is entirely borne by the hydraulic cylinder. Under long-term use, the hydraulic cylinder is prone to failure due to the instantaneous heavy pressure during the coating roller disassembly process, such as seal wear and cylinder deformation. This not only requires frequent maintenance and replacement of the hydraulic cylinder, but also shortens the service life of the entire trolley and increases the company's equipment maintenance costs. Second, lack of coating roller limit. During the movement of the trolley, the coating roller on the platform is prone to slipping and collision due to factors such as uneven workshop floors and turning inertia. This can cause minor scratches on the coating surface of the coating roller, affecting the quality of subsequent coated products, or even cause deformation of the coating roller and damage to the shaft head, directly leading to production stoppage and economic losses. Improvements are urgently needed. Therefore, we propose a coating roller trolley device that facilitates disassembly. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned technical problems by providing a coating roller trolley device that is easy to disassemble, thereby reducing the damage to the hydraulic cylinder caused by the impact force of the coating roller falling.
[0005] In view of this, the present invention provides a coating roller trolley device that is easy to disassemble, including a manual hydraulic lifting trolley body. The upper end of the manual hydraulic lifting trolley body is connected to a placement platform through a telescopic component. A rotating part is assembled on the right side of the placement platform. A load-bearing limiting component is connected to the rotating part, and the load-bearing limiting component has the freedom to rotate around the rotating part. When the load-bearing limiting component rotates around the rotating part to the bottom of the placement platform, it can form a load-bearing support structure for the placement platform. When the load-bearing limiting component rotates around the rotating part to the top of the placement platform, it can form a limiting structure for the coating roller placed on the placement platform.
[0006] Furthermore, the rotating part includes a rotating seat disposed on the right side of the placement platform. The rotating seat is fixedly connected to the placement platform by welding. A fixed rod is rotatably installed in the middle of the rotating seat. The load-bearing limiting component includes support rods welded to both the front and rear sides of the lower end of the fixed rod. A support frame is provided at the lower end of the support rod. A rubber plate is detachably installed at the lower end of the support frame. A support plate is welded to the lower right side of the main body of the manual hydraulic lifting handcart.
[0007] Furthermore, a threaded groove is provided on the outer side of the upper end of the support frame, and a screw is provided in the inner cavity of the threaded groove. A pressure plate is rotatably mounted on the end of the screw near the support rod through a bearing. The size of the screw is adapted to the size of the threaded groove, and the screw and the threaded groove are spirally connected.
[0008] Furthermore, the dimensions of the support frame are adapted to the dimensions of the support rod, and the support rod is movably connected to the support frame.
[0009] Furthermore, a limiting plate is fixedly installed on the inner side of the two support frames, and a groove is provided in the middle of the limiting plate, and the groove is set to be arc-shaped.
[0010] Furthermore, fixing blocks are fixedly installed on both the front and rear sides of the right side of the rubber plate, and a limit buckle is fixedly installed on the right side of the fixing block. The limit buckle is made of deformable plastic material, and a wedge-shaped block is integrally formed on both the front and rear sides of the limit buckle.
[0011] Furthermore, the upper end of the placement platform has limit grooves on both the front and rear sides, the limit buckle is movably connected to the limit groove, and the right side of the wedge block is set as an inclined surface.
[0012] The beneficial effects of this utility model are: With the bidirectional function of the load-bearing limit component, when the platform is raised, it can be rotated to the bottom of the platform to form a load-bearing support, which can directly bear the weight of the coating roller and the platform. This avoids the weight being entirely borne by the hydraulic cylinder of the manual hydraulic lifting trolley, effectively reducing the damage caused by the impact force of the coating roller falling to the hydraulic cylinder under instantaneous heavy pressure, and significantly extending the service life of the hydraulic cylinder and the entire trolley.
[0013] When the load-bearing limit component rotates to the top of the platform, it can effectively limit the displacement of the coating roller on the platform, prevent the coating roller from sliding or colliding due to road bumps or turning during the movement of the trolley, reduce the risk of damage such as scratches and deformation on the coating roller surface, and ensure the integrity of the coating roller. Attached Figure Description
[0014] Figure 1 This is a first-view schematic diagram of a coating roller trolley device that is easy to disassemble, as proposed in this utility model. Figure 2 This is a second-view schematic diagram of a coating roller trolley device that is easy to disassemble, as proposed in this utility model. Figure 3 This utility model proposes an easy-to-disassemble coating roller trolley device. Figure 2 Enlarged view of point A; Figure 4 This is a partial cross-sectional schematic diagram of a load-bearing and limiting component of a coating roller trolley device that is easy to disassemble, as proposed in this utility model. Figure 5 This utility model proposes an easy-to-disassemble coating roller trolley device. Figure 4 Enlarged view of point B; The markings in the diagram are as follows: 1. Manual hydraulic lifting handcart body; 11. Push handle; 12. Placement platform; 2. Support plate; 21. Rotating seat; 22. Fixing rod; 23. Support rod; 24. Support frame; 25. Rubber plate; 26. Screw; 27. Pressure plate; 28. Threaded groove; 3. Limiting plate; 31. Groove; 32. Fixing block; 33. Limiting buckle; 34. Wedge block; 35. Limiting groove. Detailed Implementation
[0015] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0016] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0017] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0018] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0019] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0020] Reference Figures 1 to 5A coating roller trolley device for easy disassembly includes a manual hydraulic lifting trolley body 1. The upper end of the manual hydraulic lifting trolley body 1 is connected to a placement platform 12 via a telescopic component. A rotating part is mounted on the right side of the placement platform 12, and a load-bearing limiting component is connected to the rotating part. The load-bearing limiting component has the freedom to rotate around the rotating part. When the load-bearing limiting component rotates around the rotating part to the bottom of the placement platform 12, it can form a load-bearing support structure for the placement platform 12. When the load-bearing limiting component rotates around the rotating part to the top of the placement platform 12, it can form a limiting structure for the coating roller placed on the placement platform 12.
[0021] The manual hydraulic lifting handcart body 1 uses a hydraulic control mechanism to lift the placement platform 12, which is a well-known technology and will not be described in detail here.
[0022] When this device is in use, if the placement platform 12 needs to be raised to move the coating roller, the load-bearing limiting component begins to function after the platform is raised into position. Since the load-bearing limiting component is rotatably connected to the rotating part, the operator can manually rotate it around the rotating part to the area below the placement platform 12. At this time, the load-bearing structure composed of the support frame 24, rubber plate 25, etc., directly contacts the support plate 2. The weight of the placement platform 12 and the coating roller placed on it is transferred to the support frame 24 through the rotating seat 21, fixed rod 22, and support rod 23, and then distributed from the support frame 24 to the support plate 2 via the rubber plate 25. The entire load-bearing process avoids the hydraulic cylinder in the main body 1 of the manual hydraulic lifting trolley, effectively protecting the hydraulic cylinder from heavy pressure. When it is necessary to limit the coating roller placed on the platform, the operator rotates the load-bearing limiting component in the opposite direction, causing it to rotate around the rotating part to the area above the placement platform 12. This design achieves functional switching of the same component at different working stages through a simple rotation action, without the need for additional complex operations or component replacements. When the load-bearing limiting component rotates to above the placement platform 12, the limiting plate 3 and related structures on the inner side of the support frame 24 approach the coating roller. By utilizing the shape and positional relationship of the limiting plate 3, the displacement of the coating roller in the left and right directions above the placement platform 12 is restricted, thereby ensuring that the coating roller can be stably placed on the platform during the movement of the trolley.
[0023] In the example of this application, the rotating part includes a rotating seat 21 disposed on the right side of the placement platform 12. The rotating seat 21 is fixedly connected to the placement platform 12 by welding. A fixed rod 22 is rotatably installed in the middle of the rotating seat 21. The load-bearing limiting component includes a support rod 23 welded to both the front and rear sides of the lower end of the fixed rod 22. A support frame 24 is provided at the lower end of the support rod 23. A rubber plate 25 is detachably installed at the lower end of the support frame 24. A support plate 2 is welded to the lower right side of the manual hydraulic lifting handcart body 1.
[0024] As a preferred example of this utility model, the rotating seat 21 is welded to the placement platform 12 as a single unit, forming a robust whole between the load-bearing limiting component and the placement platform 12. The fixed rod 22 is welded to the support rod 23, and the rigid connection formed by the weld effectively resists the tensile, compressive, and torque forces generated by gravity when bearing the weight of the coating roller. When the coating roller is placed on the platform and the load-bearing limiting component is in a supported state, the weight is sequentially transferred through the placement platform 12, rotating seat 21, fixed rod 22 to the support rod 23, and then to the support frame 24. The high connection strength of the welded structure ensures that no loosening or deformation occurs between components throughout the entire load-bearing process, guaranteeing the reliability of the load-bearing support. Furthermore, the fixed rod 22 is rotatably mounted in the middle of the rotating seat 21. When the operator applies rotational force to the load-bearing limiting component, the fixed rod 22 can rotate smoothly within the rotating seat 21, thereby driving the connected support rod 23, support frame 24, and other components to rotate synchronously. This facilitates switching between the load-bearing support and limiting states.
[0025] The rubber's cushioning properties absorb the impact force when the support frame 24 contacts the support plate 2, reducing collision noise. When the rubber plate 25 needs to be replaced due to wear and tear from long-term use, the old rubber plate 25 can be removed and replaced with a new one by disassembling the connecting parts, achieving convenient replacement.
[0026] The support plate 2 welded to the lower right side of the main body 1 of the manual hydraulic lifting handcart works together with the support frame 24 when the load-bearing limit component is in the support state. When the support frame 24 bears the weight from above, part of the weight is further distributed to the ground through the support plate 2, which enhances the stability of the entire load-bearing structure.
[0027] In the example of this application, a threaded groove 28 is provided on the outer side of the upper end of the support frame 24. A screw 26 is provided in the inner cavity of the threaded groove 28. A pressure plate 27 is rotatably mounted on the end of the screw 26 near the support rod 23 through a bearing. The size of the screw 26 is adapted to the size of the threaded groove 28, and the screw 26 and the threaded groove 28 are spirally connected.
[0028] As a preferred example of this utility model, when the placement platform 12 is raised or lowered to different heights, the operator rotates the screw 26. Due to the action of the thread, the screw 26 moves linearly along the thread groove 28, and the pressure plate 27 connected to one end of the screw 26 moves accordingly, so that the pressure plate 27 presses against the surface of the support rod 23 to achieve the effect of pressing and limiting, thereby achieving the effect of adjusting the position of the support frame 24, and thus adapting to the effect of providing load-bearing support for the placement platform 12 raised or lowered to different heights.
[0029] In the example of this application, the size of the support frame 24 is adapted to the size of the support rod 23, and the support rod 23 is movably connected to the support frame 24.
[0030] As a preferred example of this utility model, the support rod 23 and the support frame 24 are connected in a movable manner, which facilitates the adaptive adjustment of the position of the support frame 24 and the rubber plate 25.
[0031] In the example of this application, a limiting plate 3 is fixedly installed on the inner side of the two support frames 24. A groove 31 is provided in the middle of the limiting plate 3, and the groove 31 is set to be arc-shaped.
[0032] As a preferred example of this utility model, the arc-shaped groove 31 in the middle of the limiting plate 3 matches the cylindrical surface of the coating roller. When the load-bearing limiting component is in the limiting state of the coating roller, part of the circumferential surface of the coating roller is embedded in the arc-shaped groove 31. This design increases the contact area between the limiting plate 3 and the coating roller, so that the limiting force can be evenly distributed on the surface of the coating roller, thereby ensuring the limiting effect on the coating roller.
[0033] In the example of this application, fixing blocks 32 are fixedly installed on both the front and rear sides of the right side of the rubber plate 25. Limiting buckles 33 are fixedly installed on the right side of the fixing blocks 32. The limiting buckles 33 are made of deformable plastic material, and wedge blocks 34 are integrally formed on both the front and rear sides of the limiting buckles 33.
[0034] As a preferred example of this utility model, the operator aligns the limiting buckle 33 on the rubber plate 25 with the limiting groove 35 on the placement platform 12, and presses the rubber plate 25 downwards so that the limiting buckle 33 on the rubber plate 25 is engaged in the limiting groove 35, thereby achieving the limiting effect on the coating roller, which facilitates the pushing of the coating roller. Furthermore, the wedge block 34 is designed so that it can be engaged at the lower edge of the limiting groove 35. When disassembly is required, the operator applies a certain external force to the limiting buckle 33, causing the buckle to deform again and disengage from the engaged position, thus achieving quick disassembly.
[0035] In the example of this application, limit grooves 35 are provided on both the front and rear sides of the upper end of the platform 12, the limit buckle 33 is movably connected to the limit groove 35, and the right side of the wedge block 34 is set as an inclined surface.
[0036] As a preferred example of this utility model, the size and shape of the limiting groove 35 are precisely matched with the limiting buckle 33. When the limiting buckle 33 is engaged in the limiting groove 35, the two fit together tightly, which improves the stability of the connection between the rubber plate 25 and the placement platform 12 and prevents the parts from loosening due to loose connection during use.
[0037] When installing the limit buckle 33, the inclined surface of the wedge block 34 acts as a guide. When the operator brings the limit buckle 33 close to the limit groove 35, the inclined surface first contacts the edge of the limit groove 35. With further pressing, the inclined surface guides the limit buckle 33 to easily slide into the limit groove 35, reducing resistance during the engagement process and making the installation operation smoother. During disassembly, applying an outward pulling force to the limit buckle 33, the inclined surface also reduces the resistance to the buckle disengaging from the limit groove 35. The operator can complete the disassembly and assembly operations without using excessive external force, further improving the convenience of operation and reducing the difficulty of equipment maintenance.
[0038] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A coating roller trolley device that is easy to disassemble, characterized in that, Includes the main body of a manual hydraulic lifting handcart (1): The upper end of the main body (1) of the manual hydraulic lifting handcart is connected to the placement platform (12) through a telescopic component, and a rotating part is installed on the right side of the placement platform (12); The rotating part is connected to a load-bearing limiting component, and the load-bearing limiting component has a degree of freedom to rotate around the rotating part; the load-bearing limiting component can rotate around the rotating part to the bottom of the placement platform (12) to form a load-bearing support structure for the placement platform (12); the load-bearing limiting component can rotate around the rotating part to the top of the placement platform (12) to form a limiting structure for the coating roller placed on the placement platform (12).
2. The easy-to-disassemble coating roller trolley device according to claim 1, characterized in that, The rotating part includes a rotating seat (21) disposed on the right side of the placement platform (12). The rotating seat (21) is fixedly connected to the placement platform (12) by welding. A fixing rod (22) is rotatably installed in the middle of the rotating seat (21). The load-bearing limiting component includes a support rod (23) welded to both the front and rear sides of the lower end of the fixed rod (22). The lower end of the support rod (23) is provided with a support frame (24). The lower end of the support frame (24) is detachably equipped with a rubber plate (25). The lower right side of the manual hydraulic lifting handcart body (1) is welded with a support plate (2).
3. The coating roller trolley device for easy disassembly according to claim 2, characterized in that, The upper outer side of the support frame (24) is provided with a threaded groove (28), and a screw (26) is provided in the inner cavity of the threaded groove (28). A pressure plate (27) is rotatably installed on the end of the screw (26) near the support rod (23) through a bearing. The size of the screw (26) is adapted to the size of the threaded groove (28), and the screw (26) and the threaded groove (28) are spirally connected.
4. The easy-to-disassemble coating roller trolley device according to claim 3, characterized in that, The dimensions of the support frame (24) are adapted to the dimensions of the support rod (23), and the support rod (23) is movably connected to the support frame (24).
5. The coating roller trolley device for easy disassembly according to claim 4, characterized in that, Limiting plates (3) are fixedly installed on the inner side of the two support frames (24). A groove (31) is provided in the middle of the limiting plate (3), and the groove (31) is set to be arc-shaped.
6. The coating roller trolley device for easy disassembly according to claim 5, characterized in that, Fixing blocks (32) are fixedly installed on both the front and rear sides of the right side of the rubber plate (25). Limiting buckles (33) are fixedly installed on the right side of the fixing blocks (32). The limiting buckles (33) are made of deformable plastic material. Wedge blocks (34) are integrally formed on both the front and rear sides of the limiting buckles (33).
7. The coating roller trolley device for easy disassembly according to claim 6, characterized in that, Limiting grooves (35) are provided on both the front and rear sides of the upper end of the placement platform (12). The limiting buckle (33) is movably connected to the limiting groove (35), and the right side of the wedge block (34) is set as an inclined surface.