Pendant trolley convenient for shielding operation
By designing a trailer that facilitates shielding operations, and employing a portal frame and adjustable steel pipe structure, the complexity of suspending and transferring the battery pack casing was solved, achieving convenient suspension and multi-specification adaptability of the battery pack casing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-03
AI Technical Summary
In the existing technology, the shielding operation of the upper and lower shells of the battery pack is complicated and inconvenient, especially the suspension and transfer process is cumbersome and difficult to adapt to battery pack shells of different specifications.
A trailer designed for easy shielding operations is used, which adopts a portal frame structure, including vertical and horizontal steel pipes, concave brackets and omnidirectional brake wheels. It can suspend two battery pack housings at the same time, and can adapt to housings of different specifications by adjusting the length of the steel pipes.
It enables easy suspension and movement of the battery pack housing, adapts to various specifications, and improves the efficiency and flexibility of shielding operations.
Smart Images

Figure CN223962144U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of powder spraying technology, specifically relating to a hanging vehicle that facilitates shielding operations. Background Technology
[0002] Powder coating is a coating process that uses corona discharge to adhere powder coatings to a workpiece. After powder coating, steps such as heat melting and curing are followed to form a coating film on the workpiece surface, thereby improving the workpiece's insulation and protection. With the rapid development of the new energy vehicle market and the increasing demand for green, environmentally friendly, efficient, and energy-saving surface coatings, powder coating technology has found new applications in the niche field of automotive battery pack insulation.
[0003] Since certain areas of the upper and lower casings of the battery pack do not require insulation protection and therefore do not need powder coating, these areas need to be shielded before powder coating by applying tape or screwing in plugs to ensure that there is no insulating layer after powder coating. However, the upper and lower casings of the battery pack are relatively large and require shielding on both sides. To facilitate the shielding operation, the upper and lower casings of the battery pack need to be suspended during operation, and after shielding, they are transferred to the production line for powder coating. Summary of the Invention
[0004] This utility model provides a simple and practical hanging vehicle for shielding operations, which is used to suspend the upper and lower shells of the battery pack, making shielding operations convenient.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A trolley for easy shielding operations includes a U-shaped frame, which consists of two vertical steel pipes and a horizontal steel pipe positioned at the top of the two vertical steel pipes. A supporting steel pipe parallel to the horizontal steel pipe is provided on the upper part of the U-shaped frame. Concave hanging brackets are welded to the front and rear ends of the supporting steel pipe, and several hanging slots are provided on the side of the concave hanging brackets away from the supporting steel pipe. A base frame steel pipe is provided at the lower end of the two vertical steel pipes of the U-shaped frame, and a universal brake wheel is provided at the bottom of the base frame steel pipe.
[0007] Preferably, the concave bracket consists of two parallel bracket steel pipes and a steel plate at one end of the two bracket steel pipes. The other ends of the two bracket steel pipes are welded to the supporting steel pipe and are set perpendicular to the supporting steel pipe. Several hanging grooves are opened on the upper part of the steel plate.
[0008] Preferably, a first reinforcing steel pipe is inclinedly arranged between the hanging steel pipe of the concave bracket and the horizontal steel pipe of the portal frame.
[0009] Preferably, a second reinforcing steel pipe is obliquely arranged between the top two ends of the base frame steel pipe and the vertical steel pipe of the portal frame.
[0010] Preferably, the vertical steel pipe of the portal frame consists of an upper steel pipe, a lower steel pipe, and an adjusting steel pipe. The upper end of the adjusting steel pipe is inserted into the upper steel pipe and fixed in place, while the lower end of the adjusting steel pipe is movably inserted into the lower steel pipe and can extend into and out of the lower steel pipe. The adjusting steel pipe is provided with several fixed through holes spaced apart, and the upper end of the lower steel pipe is provided with a locking through hole. The adjusting steel pipe and the lower steel pipe are locked together by bolts and nuts.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This trailer has two concave brackets on the front and rear sides of the supporting steel pipe, which can simultaneously suspend the upper or lower shells of two battery packs; at the same time, after shielding is completed, it can be easily moved to the production line; in addition, by adjusting the length of the vertical steel pipe of the portal frame, the height of the concave bracket from the bottom surface can be adjusted, thereby adapting to upper and lower shells of various specifications. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 for Figure 1 A structural diagram with the horizontal steel pipe and the first reinforcing steel pipe removed.
[0014] Figure 3 This is a schematic diagram of a preferred embodiment of the present invention.
[0015] In the diagram: 1. Base frame steel pipe; 2. U-shaped frame; 3. Support steel pipe; 4. Concave hanging bracket; 5. Hanging groove; 6. Universal brake wheel; 7. First reinforcing steel pipe; 8. Second reinforcing steel pipe; 9. Adjusting steel pipe; 10. Fixing through hole; 11. Locking through hole; 21. Vertical steel pipe; 22. Horizontal steel pipe; 41. Hanging bracket steel pipe; 42. Steel plate; 211. Upper steel pipe; 212. Lower steel pipe. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art.
[0017] The present invention relates to a trolley for easy shielding operations, comprising a U-shaped frame 2, wherein the U-shaped frame 2 is composed of two vertical steel pipes 21 and a horizontal steel pipe 22 disposed on the top of the two vertical steel pipes 21; a supporting steel pipe 3 parallel to the horizontal steel pipe 22 is provided on the upper part of the U-shaped frame 2, and concave hanging brackets 4 are welded to the front and rear ends of the supporting steel pipe 3 respectively, and several hanging slots 5 are provided on the side of the concave hanging brackets 4 away from the supporting steel pipe 3; a base frame steel pipe 1 is provided at the lower end of the U-shaped frame 2, and a universal brake wheel 6 is provided at the bottom of the base frame steel pipe 1.
[0018] In use, insert S-shaped hooks into the appropriate through holes at both ends of the upper part of the battery pack's upper or lower housing. Then, move the upper or lower housing of the battery pack to hook the S-shaped hooks into the hanging slots of the concave bracket. Afterward, shielding is applied to areas where powder coating is not required by sticking tape or screwing in plugs. This mounting device can simultaneously suspend two battery pack upper or lower housings.
[0019] Specifically, the concave bracket 4 consists of two parallel bracket steel pipes 41 and a steel plate 42 set at one end of the two bracket steel pipes 41. The other ends of the two bracket steel pipes 41 are welded to the supporting steel pipe 3 and are set perpendicular to the supporting steel pipe 3. Several hanging grooves 5 are opened on the upper part of the steel plate 42.
[0020] To ensure the welding strength of the concave bracket and reduce the stress on the concave bracket, a first reinforcing steel pipe 7 is inclinedly arranged between the bracket steel pipe 41 of the concave bracket 4 and the horizontal steel pipe 22 of the portal frame 2.
[0021] To enhance the stability of the portal frame, a second reinforcing steel pipe 8 is inclinedly installed between the top two ends of the base frame steel pipe 1 and the vertical steel pipe 21 of the portal frame 2.
[0022] This trailer was designed to accommodate most battery pack housings currently being powder-coated. However, the battery pack housings we will be handling in the future will certainly not be limited to the current types. Furthermore, different vehicle models on the market have different specifications for their battery pack housings. To accommodate the upper and lower housings of larger battery packs, we have made sure that their length is matched to the longest housing as much as possible, and the height of the concave trailer from the bottom surface is adjustable. Specifically, the vertical steel pipe 21 of the portal frame 2 consists of an upper steel pipe 211, a lower steel pipe 212, and an adjusting steel pipe 9. The upper steel pipe 211 and the lower steel pipe 212 have the same structure. The adjusting steel pipe 9 is used to connect the upper steel pipe 211 and the lower steel pipe 212. The upper end of the adjusting steel pipe 9 is inserted into the upper steel pipe 211 and fixed in place. In this embodiment, it is locked in place by bolts and nuts. The lower end of the adjusting steel pipe 9 is movably inserted into the lower steel pipe 212 and can extend into and out of the lower steel pipe. The adjusting steel pipe 9 is provided with several fixed through holes 10 spaced apart. The upper end of the lower steel pipe 212 is provided with a locking through hole 11. The adjusting steel pipe 9 and the lower steel pipe 212 are locked together by bolts and nuts. Normally, the adjusting steel pipe is inserted inside the lower steel pipe and not exposed. At this time, the upper and lower steel pipes are aligned, but the adjusting steel pipe and the lower steel pipe still need to be locked with bolts and nuts. When the height needs to be adjusted, unscrew the bolt of the lower steel pipe, move the two upper steel pipes upward to the appropriate position at the same time, align a fixed through hole with the locking through hole, screw in the bolt and lock it with the bolt.
Claims
1. A hanger cart for facilitating shielding activities, the hanger cart comprising: The utility model provides a kind of door-shaped frame (2) comprising two vertical steel pipes (21) and horizontal steel pipe (22) being arranged at the top of two vertical steel pipes (21);Support steel pipe (3) is arranged in parallel with horizontal steel pipe (22) in the upper portion of the door-shaped frame (2), recessed hanger (4) is respectively welded in the front side and rear side of the two ends of support steel pipe (3), and a plurality of hanging grooves (5) are formed in the side of recessed hanger (4) away from support steel pipe (3);Bottom frame steel pipe (1) is arranged in the lower end of the two vertical steel pipes (21) of the door-shaped frame (2), and universal brake wheel (6) is arranged in the bottom of bottom frame steel pipe (1).
2. The pegboard of claim 1, wherein: The recessed hanger (4) is composed of two parallel hanging steel pipes (41) and a steel plate (42) arranged at one end of the two hanging steel pipes (41). The other end of the two hanging steel pipes (41) is welded to the support steel pipe (3) and is arranged perpendicularly to the support steel pipe (3). A plurality of hanging grooves (5) are formed in the upper portion of the steel plate (42).
3. A pegboard according to claim 2, wherein: The first reinforcing steel pipe (7) is obliquely arranged between the hanging steel pipe (41) of the recessed hanger (4) and the horizontal steel pipe (22) of the door-shaped frame (2).
4. The pegboard of claim 1, wherein: The second reinforcing steel pipe (8) is obliquely arranged between the top two ends of the bottom frame steel pipe (1) and the vertical steel pipe (21) of the door-shaped frame (2).
5. The pegboard of claim 1, wherein: The vertical steel pipe (21) of the door-shaped frame (2) is composed of an upper steel pipe (211), a lower steel pipe (212), and an adjusting steel pipe (9). The upper end of the adjusting steel pipe (9) is inserted into the upper steel pipe (211) and is fixed. The lower end of the adjusting steel pipe (9) is movably inserted into the lower steel pipe (212) and can be extended into or out of the lower steel pipe. A plurality of fixed through holes (10) are formed at intervals on the adjusting steel pipe (9). A locking through hole (11) is formed in the upper end of the lower steel pipe (212). The adjusting steel pipe and the lower steel pipe are locked by bolts and nuts.