Matching structure between bathing machine cart and main machine
By installing lower and upper anti-collision components between the shower machine trolley and the main unit, the problems of impact and movement when the stretcher enters and exits are solved, ensuring that the trolley is stably inserted into the main unit, thus improving the safety and stability of use.
Patent Information
- Application Number
- CN202520345368.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-03
AI Technical Summary
In existing shower machines, the separate design of the stretcher and the main unit can lead to collisions or instability of the trolley during entry and exit, affecting the safety of the equipment and the user.
A lower and upper anti-collision component is installed between the shower machine trolley and the main unit, including multiple pairs of lower and upper anti-collision wheels. The wheels are designed with soft rubber or silicone, and with beveled edges and V-shaped grooves, the trolley is accurately positioned and stable.
This makes it easier for the trolley to enter the main unit, avoiding impacts and movement, and improving safety and stability during use.
Smart Images

Figure CN223969047U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bathing machine, and more particularly to a cooperative structure between a bathing machine trolley and a main unit, belonging to the field of mechanical technology. Background Technology
[0002] A shower machine is a bathing aid designed for the elderly or other people with mobility issues. Compared to manual bathing, it effectively saves manpower and improves efficiency. Various shower machines are currently available on the market, and numerous technical solutions for (automatic) shower machines have been disclosed in Chinese patent applications, such as CN108272367A (a fully automatic bathing system), CN110367860A (a fully automatic shower machine), and CN111568272A (an intelligent shower machine). In existing products and the aforementioned disclosed technical solutions, a stretcher is generally used to transport the person needing to shower into the machine. Because the stretcher and the main unit of the shower machine are separate, the following problems need to be addressed: First, the stretcher may collide with the main unit when entering or leaving, affecting the equipment; second, carrying a stretcher is strenuous, so a trolley-type stretcher is often used. However, a trolley-type stretcher is prone to movement under external force after entering the main unit, causing discomfort to the user and potentially leading to limb injury in some cases. Summary of the Invention
[0003] The purpose of this utility model is to overcome the above-mentioned problems existing in the current bathing machine and to provide a cooperative structure between the bathing machine trolley and the main unit.
[0004] To achieve the purpose of this utility model, the following technical solution is adopted: a cooperative structure between a bath machine trolley and a main unit, wherein the trolley includes a base frame and an upper frame, both of which are rectangular. Casters are installed on the lower part of the base frame, and a lower anti-collision component that cooperates with the base frame is installed on the lower part of the main unit. An upper anti-collision component that cooperates with the upper frame is installed above the lower anti-collision component. The front ends of the base frame are machined with chamfered edges on both sides. The lower anti-collision component includes at least three pairs of lower anti-collision wheels rotatably installed on the lower part of the main unit, wherein the width between the outermost lower anti-collision wheels is greater than the width of the rectangular frame, and the width between the innermost lower anti-collision wheels is less than the width of the rectangular frame. The width of the cube is greater than the minimum width between the two beveled corners. After the trolley enters the main unit, the lower anti-collision wheel between the innermost and outermost ends has a contact fit or clearance fit with the side wall of the base frame. The upper anti-collision assembly includes upper anti-collision frames that are fixedly installed on both sides of the main unit inlet. Multiple pairs of upper anti-collision wheels corresponding to the left and right directions are rotatably installed on the upper anti-collision frames from the inside to the outside. The spacing between the corresponding anti-collision wheels from the inside to the outside increases sequentially. After the trolley enters the main unit, the pair of upper anti-collision wheels at the innermost end has a contact fit or clearance fit with the outer wall of the upper frame. The rotation axes of the upper and lower anti-collision wheels are both in the up and down direction.
[0005] Furthermore, the innermost lower anti-collision wheel is made of soft rubber or soft silicone, and has multiple toothed grooves machined on the chamfered outer wall.
[0006] Furthermore, the upper anti-collision frame is a groove-shaped frame with a V-shaped bottom surface.
[0007] Furthermore, the lower anti-collision assembly has five pairs of lower anti-collision wheels.
[0008] The positive and beneficial technical effects of this utility model are as follows: When the trolley with this matching structure is pushed in, it is easier to find the entrance. After being pushed into place, the lower anti-collision wheel and the bottom oblique side are tangent, which restricts both the left and right directions and the front. The multiple teeth can ensure that the limit is stable. Attached Figure Description
[0009] Figure 1 This is a side view of the stroller.
[0010] Figure 2 This is a schematic diagram showing the connection between the underframe and the lower anti-collision components.
[0011] Figure 3 This is a diagram of the bottom of the shower machine.
[0012] Figure 4 This is an exploded view of the upper anti-collision component.
[0013] Figure 5 yes Figure 2 A partially enlarged schematic diagram. Detailed Implementation
[0014] To more fully explain the implementation of this utility model, implementation examples are provided. These implementation examples are merely illustrative of this utility model and do not limit its scope.
[0015] The present invention will be further explained in detail with reference to the accompanying drawings, in which the following references are made: 1: base frame; 2: upper frame; 3: caster; 4: lower anti-collision wheel A; 5: lower anti-collision wheel B; 6: lower anti-collision wheel C; 7: lower anti-collision wheel D; 8: lower anti-collision wheel E; 9: chamfered surface; 10: main unit; 11: upper anti-collision frame; 12: upper anti-collision wheel; 13: limiting shaft; 14: limiting plate.
[0016] As shown in the attached diagram; a matching structure between a shower machine trolley and the main unit, the trolley includes a base frame 1 and an upper frame 2, both of which are rectangular. Casters 3 are installed on the lower part of the base frame. A lower anti-collision assembly that cooperates with the base frame is installed on the lower part of the main unit 10. An upper anti-collision assembly that cooperates with the upper frame is installed on the main unit above the lower anti-collision assembly. The outer front end of the base frame 1 is machined with a chamfered edge 9. The lower anti-collision assembly includes at least three pairs of lower anti-collision wheels rotatably installed on the lower part of the main unit. In this embodiment, the lower anti-collision assembly has five pairs of lower anti-collision wheels, which are arranged from the inside out as lower anti-collision wheel A4, lower anti-collision wheel B, etc. 5. Lower anti-collision wheels C6, D7, and E8; the width between the outermost lower anti-collision wheels E is greater than the frame width of the cuboid, while the width of the innermost lower anti-collision wheel A is less than the width of the cuboid but greater than the minimum width between the two chamfered edges 9. After the trolley enters the main unit, the lower anti-collision wheels between the innermost and outermost ends make contact or clearance fit with the side wall of the base frame. The innermost lower anti-collision wheel is made of soft rubber or soft silicone, and multiple grooves are machined on the outer wall of the chamfered edge. In this way, the anti-collision wheel A is tangent to the front chamfered edge of the base frame, and the wheel deforms and engages with the grooves, making the positioning more secure.
[0017] The upper anti-collision assembly includes upper anti-collision frames 11 fixedly installed on both sides of the main unit's inlet. Multiple pairs of upper anti-collision wheels 12, corresponding to left and right directions, are rotatably mounted on the upper anti-collision frames from the inside out. The spacing between the corresponding anti-collision wheels increases sequentially from the inside out. After the trolley enters the main unit, the innermost pair of upper anti-collision wheels has a contact fit or clearance fit with the outer wall of the upper frame. The rotation axes of both the upper and lower anti-collision wheels are vertical. In this embodiment, the upper anti-collision frame is a channel-shaped frame with a V-shaped bottom surface. The V-shape is as follows... Figure 4 As shown. Figure 4 This is an exploded view of the upper anti-collision component. During installation, the upper anti-collision wheel is installed inside the upper anti-collision frame, and then the upper limit shaft is inserted (there is a limit shaft hole on the groove side of the upper anti-collision frame). The upper anti-collision wheel and the limit shaft rotate in the same direction. Then, the limit plate is installed to press the end of the limit shaft. Finally, the limit plate and the upper anti-collision frame are fixedly connected by the limit screw. Figure 4 In the middle, the uppermost anti-collision wheel is located at the outermost end. The upper anti-collision rings on both sides of the main unit inlet are distributed in a figure-eight pattern, and the large outer port facilitates the entry of the upper frame.
[0018] When using this trolley, bathers support themselves on the upper frame and push it into the main unit.
[0019] After a detailed description of the embodiments of this utility model, those skilled in the art will clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent applications. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the scope of the technical solution of this utility model, and this utility model is not limited to the embodiments of the examples given in the specification.
Claims
1. A cooperation structure between a bathtub trolley and a main machine, the trolley comprising a bottom frame and an upper frame, both of which are rectangular, and a caster wheel is installed at the lower part of the bottom frame, characterized in that: The lower anti-collision assembly is installed on the lower part of the host and matched with the chassis, and the upper anti-collision assembly matched with the upper frame is installed above the lower anti-collision assembly, the chassis is chamfered on the two sides of the front end, the lower anti-collision assembly includes at least three pairs of lower anti-collision wheels rotatably installed on the lower part of the host, the width between the outermost lower anti-collision wheels is greater than the frame of the cuboid, the width of the innermost lower anti-collision wheels is less than the width of the cuboid and greater than the minimum width between the two chamfered surfaces, after the trolley enters the interior of the host, the lower anti-collision wheels between the innermost and the outermost are in contact or clearance fit with the side wall of the chassis, the upper anti-collision assembly includes upper anti-collision frames fixedly installed on the two sides of the entrance of the host, a plurality of pairs of upper anti-collision wheels corresponding in the left and right directions are rotatably installed on the upper anti-collision frames from inside to outside, the intervals between the upper anti-collision wheels corresponding from inside to outside are increased in turn, after the trolley enters the interior of the host, the innermost pair of upper anti-collision wheels is in contact or clearance fit with the outer wall of the upper frame, and the rotation axes of the upper anti-collision wheels and the lower anti-collision wheels are all in the upward and downward directions.
2. The matching structure between the shower cart and the main machine according to claim 1, characterized in that: The innermost lower anti-collision wheel is a soft rubber wheel or a soft silica gel wheel, and a plurality of tooth grooves are formed on the outer wall of the chamfered surface.
3. The engagement structure between the shower cart and the main machine according to claim 1, characterized in that: The upper anti-collision frame is a groove-shaped frame, and the bottom surface of the groove-shaped frame is V-shaped.
4. The engagement structure between the shower cart and the main machine according to claim 1, characterized in that: The lower anti-collision assembly includes five pairs of lower anti-collision wheels.
Citation Information
Patent Citations
Full-automatic bathing system
CN108272367A
Full-automatic bathing machine
CN110367860A
Intelligent bathing machine
CN111568272A