Bathtub stacking bracket structure

By designing a pallet rack structure with fixed blocks and support legs, the problems of swaying and inconvenience in handling bathtubs during transportation are solved, achieving efficient and stable multi-device compatibility and low-cost high-efficiency transportation, meeting the needs of large-volume storage.

CN224184919UActive Publication Date: 2026-05-01KAIPING MENGBEINA SANITARY WARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KAIPING MENGBEINA SANITARY WARE CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing bathtub packaging solutions are prone to shaking during transportation, are inconvenient to handle, cannot be adapted to different lifting equipment, occupy a large space, and have high transportation costs, thus failing to meet the needs of large-volume storage.

Method used

Design a bracket structure including a first bathtub support frame and a second bathtub support frame. The support frame is equipped with a fixing block and a support leg. The fixing block clamps the bathtub, and the support leg forms an elevated cavity to accommodate different lifting devices. The support leg cooperates with the positioning notch to achieve stable assembly. A bathtub sleeve opening is provided to reduce the overall height.

Benefits of technology

It improves the stability and retrieval efficiency of bathtubs during transportation, reduces labor costs, saves on transportation and packaging costs, increases the stacking capacity, is compatible with various lifting equipment, and reduces space occupation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a bathtub stacking bracket structure which comprises a first bathtub supporting plate frame and at least one second bathtub supporting plate frame, positioning notches are formed in the four corners of the top of the first bathtub supporting plate frame and the four corners of the top of the second bathtub supporting plate frame respectively, and supporting legs are arranged at the four corners of the bottom of the first bathtub supporting plate frame and the four corners of the bottom of the second bathtub supporting plate frame respectively. The second bathtub supporting plate frame is erected on the first bathtub supporting plate frame in a stacked mode. Bathtubs are fixed to the first bathtub supporting plate frame and the second bathtub supporting plate frame through the fixing blocks respectively, the phenomenon that the bathtubs shake and swing in the transportation process and are collided and damaged can be avoided, a gantry crane can be used, a forklift and other lifting equipment can also be used for lifting and lifting, the adaptability to different lifting equipment is improved, and the transportation efficiency of the bathtubs is improved. When the bathtub is taken, the bathtub can be taken from any layer, the taking efficiency is very high, and when the bathtub is stacked, the stacking number can be freely adjusted, so that the storage requirement of a large batch of bathtubs is met.
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Description

A bathtub stacking bracket structure Technical Field

[0001] This utility model relates to the field of bathtub packaging, and in particular to a bathtub stacking bracket structure. Background Technology

[0002] Currently, after bathtubs are manufactured, they are usually individually packaged in wooden crates. This individual packaging method is limited by the internal height of the shipping container, allowing a maximum of three layers to be stacked, which leads to high transportation costs. To solve this technical problem, a packaging and transportation method that allows bathtubs to be stacked together has emerged. For example, a patent application published in Chinese patent literature, patent number 202122120209.X, entitled "A Stackable Packaging Structure for Artificial Stone Bathtubs," mainly includes a frame and several iron hooks stacked and hung inside the frame. The frame is composed of a first horizontal bar, a second horizontal bar, a third horizontal bar, a fourth horizontal bar, a support rod, a first vertical bar, a second vertical bar, a third vertical bar, a fourth vertical bar, and a load-bearing rod. The two ends of the iron hooks are respectively hung on the first horizontal bar and the second horizontal bar. During stacking, the first layer of bathtubs is placed on a load-bearing rod, and the second to sixth or seventh layers are suspended from the frame using iron hooks. This allows for stacking of 6 to 7 layers within the container's height limit, saving cargo space, increasing cargo capacity, and significantly reducing transportation costs. However, this solution still has some shortcomings in practical application:

[0003] First, the iron hooks in this design only serve to lift the bathtub and do not have a structure to secure it. When transported to bumpy roads, the bathtub is prone to swaying and colliding with the frame or other bathtubs stacked together, resulting in damage to the bathtub. Therefore, the reliability of the design is poor.

[0004] Secondly, since the frame only has an opening at the top, this solution requires the use of a gantry crane for stacking and retrieving. However, such large equipment as gantry cranes is generally only available to manufacturers. When transported to the distributor, it is not possible to use forklifts or other lifting equipment to retrieve the bathtubs individually. The only option is to manually climb ladders from the top of the frame to retrieve them. Furthermore, since the bathtubs are heavy, they are not only prone to breaking during retrieval, but the workers retrieving them are also prone to slipping and falling, posing significant safety risks and costs associated with damaged bathtubs.

[0005] Third, when retrieving the bathtubs, they can only be taken one by one from the top, which is very inconvenient and inefficient. Moreover, since the bathtubs lack frames and iron hooks after being taken out, they cannot be stacked and can only be placed on the ground one by one, which takes up a lot of space.

[0006] Fourth, the number of bathtubs that can be stacked is still limited by the height of the rack. For example, when placed in the warehouse of a factory, the height space of the warehouse cannot be used to stack more bathtubs, which makes the solution insufficient to meet the needs of storing a larger number of bathtubs.

[0007] Therefore, based on the aforementioned shortcomings, the applicant believes that it is essential to redesign the structure of the bathtub stacking packaging to better meet people's practical application needs. Summary of the Invention

[0008] The purpose of this utility model is to solve the above-mentioned problems and shortcomings by providing a bathtub stacking bracket structure. This structure uses multiple fixing blocks to fix each bathtub to a first bathtub support frame and a second bathtub support frame, thus preventing the bathtubs from shaking and swaying during transportation and avoiding damage from collisions. The bathtubs will not loosen or fall off when being lifted. It can be lifted and moved using gantry cranes, forklifts, or other lifting equipment, improving adaptability to different lifting devices. It eliminates the need for manual handling, greatly reducing labor costs. When retrieving bathtubs, they can be taken from any layer, resulting in high retrieval efficiency. The number of bathtubs stacked can be adjusted at will to meet the storage needs of large quantities of bathtubs. Furthermore, by setting bathtub sleeve openings, the overall height of multiple bathtubs stacked together can be greatly reduced, allowing for the storage of more bathtubs in a container and saving transportation costs.

[0009] The technical solution of this utility model is implemented as follows: a bathtub stacking bracket structure, characterized in that it includes a first bathtub support bracket and at least one second bathtub support bracket. The first and second bathtub support brackets are respectively provided with a plurality of fixing blocks arranged around the bathtub and clamping and fixing the bathtub. The four corners of the top of the first and second bathtub support brackets are respectively provided with positioning notches. The four corners of the bottom of the first and second bathtub support brackets are respectively provided with legs. A first cavity is formed between the bottom surface of the first bathtub support bracket and its four legs. A second cavity is formed between the bottom surface of the second bathtub support bracket and its four legs. The middle of the second bathtub support bracket is also provided with a bathtub sleeve opening that is vertically through it. The second bathtub support brackets are stacked on the first bathtub support brackets, and the bottoms of the four legs of the second bathtub support brackets are respectively embedded in the four positioning notches of the first bathtub support brackets.

[0010] Preferably, the present invention further includes a plurality of locking screws, and each of the fixing blocks is fixed to the corresponding first bathtub tray frame and second bathtub tray frame by the locking screws.

[0011] Preferably, the first bathtub tray frame and the second bathtub tray frame each include a frame body and a support plate disposed on the top surface of the frame body; the four positioning notches are respectively disposed on the four corners of the support plate, the four support legs are respectively disposed on the four corners of the frame body, and the bathtub sleeve opening is disposed on the support plate of the second bathtub tray frame.

[0012] Preferably, the frame body is a rectangular frame structure formed by connecting two transverse bars and two longitudinal bars.

[0013] Preferably, a reinforcing rod is also connected between the transverse rod and the longitudinal rod.

[0014] Preferably, a load-bearing rod is also connected between the two transverse rods of the first bathtub tray frame or between the two longitudinal rods of the first bathtub tray frame.

[0015] Preferably, a cardboard is also provided on the top surface of the support plate.

[0016] Preferably, the height of the legs of the first bathtub tray is lower than the height of the legs of the second bathtub tray.

[0017] Preferably, the present invention also includes straps for binding the second bathtub tray frame together with the first bathtub tray frame.

[0018] Preferably, there are two or more second bathtub trays, and the two second bathtub trays are stacked on top of each other, with the bottom of the four legs of one second bathtub tray being respectively embedded into the four positioning notches of the other second bathtub tray.

[0019] The beneficial effects of this utility model are:

[0020] This utility model uses multiple fixing blocks arranged around the bathtub to clamp and fix it in place. Each bathtub is then fixed to a first bathtub support frame and a second bathtub support frame. When stacking or picking up the bathtubs, they can be lifted up along with the first and second bathtub support frames. This not only prevents the bathtubs from shaking or swaying during transportation and avoids them from being bumped or damaged, but also prevents the bathtubs from falling off during the lifting process, greatly improving the reliability of stacking, packaging, and transporting bathtubs.

[0021] Furthermore, by setting up the first and second empty cavities, lifting ropes or forklift forks can pass through, so that gantry cranes or other lifting equipment such as forklifts can be used to lift and move the first and second bathtub pallet frames. From the manufacturer to the distributor, different lifting equipment can be used for lifting, which greatly improves the adaptability of this utility model to different lifting equipment, and eliminates the need for manual handling, thus greatly reducing labor costs.

[0022] Meanwhile, the cooperation between the support legs and the positioning notch ensures that the stacking and assembly of the second bathtub tray and the first bathtub tray are both very stable and easy to separate. When taking out the bathtub, you can take it from any layer according to the number of bathtubs you need, which greatly improves the convenience of taking out the bathtub and makes the taking out efficiency very high. Moreover, the several bathtubs taken out can be stacked together, which greatly reduces the space occupied.

[0023] At the same time, the number of bathtubs stacked can be adjusted at will, which is very flexible and convenient. This allows more bathtubs to be stacked in the warehouse of the factory to meet the storage needs of a large number of bathtubs.

[0024] In addition, by setting up bathtub sleeve openings, when stacking, the bathtubs on the lower layer can pass through the bathtub sleeve openings and be placed in the bathtubs on the upper layer, so that the two bathtubs stacked together can form a non-contact stacking structure. This can greatly reduce the overall height of multiple bathtubs stacked together, so that more bathtubs can be stacked in the container, saving transportation costs.

[0025] Through the above structural design, the bathtub is supported by the first or second bathtub tray frame from the manufacturer to the distributor, and then from the distributor to the consumer. This completes the packaging and fixing of the bathtub in one go, realizing the transportation packaging and protection of the entire sales and transportation chain of the bathtub. There is no need for repeated packaging, which can greatly save labor and packaging material costs. Attached Figure Description

[0026] Figure 1 is a schematic diagram of the disassembled structure of this utility model with a bathtub placed inside.

[0027] Figure 2 is a schematic diagram of the cross-sectional structure of this utility model with part of the AA section in Figure 1.

[0028] Figure 3 is a three-dimensional structural diagram of the first bathtub tray frame of this utility model.

[0029] Figure 4 is a three-dimensional structural diagram of the second bathtub tray frame of this utility model.

[0030] Figure 5 is a schematic diagram of the first bathtub tray or the second bathtub tray of this utility model in a side view.

[0031] Figure 6 is a schematic diagram of the usage state of this utility model in a stacked state.

[0032] Figure 7 is a schematic diagram of the usage state of this utility model after stacking and packaging. Detailed Implementation

[0033] As shown in Figures 1 and 2, the bathtub stacking bracket structure of this utility model includes a first bathtub support bracket 1 and at least one second bathtub support bracket 2. The first bathtub support bracket 1 and the second bathtub support bracket 2 are each provided with a plurality of fixing blocks 3 arranged around the bathtub and clamping and fixing it in place. Positioning notches 11 are provided at the four corners of the top of the first bathtub support bracket 1 and the second bathtub support bracket 2, and positioning notches 11 are provided at the four corners of the bottom of the first bathtub support bracket 1 and the second bathtub support bracket 2. The first bathtub support frame 1 has four legs 12, and a first hollow cavity 10 is formed between the bottom surface of the first bathtub support frame 1 and its four legs 12. A second hollow cavity 20 is also formed between the bottom surface of the second bathtub support frame 2 and its four legs 12. The second bathtub support frame 2 has a vertically penetrating bathtub sleeve opening 21 in its center. The second bathtub support frame 2 is stacked on top of the first bathtub support frame 1, and the bottoms of the four legs 12 of the second bathtub support frame 2 are respectively embedded in the four positioning notches 11 of the first bathtub support frame 1. As shown in Figure 1, when placing the bathtub 100, the bathtub 100 is placed open-topped at the center of the first bathtub support frame 1 or the second bathtub support frame 2.

[0034] To further improve the installation structure of the fixing block 3, as shown in Figure 2, this utility model also includes several locking screws 4. Each fixing block 3 is fixed to the corresponding first bathtub support 1 and second bathtub support 2 by the locking screws 4. Locking the fixing block 3 with the locking screws 4 makes clamping the bathtub 100 and removing the fixing block 3 very convenient and reliable. In practical applications, the fixing block 3 can also be fixed to the first bathtub support 1 and second bathtub support 2 by riveting, snap-fit, or mortise and tenon joints.

[0035] To further improve the structure of the first bathtub support frame 1 and the second bathtub support frame 2, making their structure simple and easy to manufacture, as shown in Figures 3 and 4, the first bathtub support frame 1 and the second bathtub support frame 2 each include a frame body 13 and a support plate 14 disposed on the top surface of the frame body 13; four positioning notches 11 are respectively disposed on the four corners of the support plate 14, four support legs 12 are respectively disposed on the four corners of the frame body 13, and the bathtub insertion opening 21 is disposed on the support plate 14 of the second bathtub support frame 2. By setting the support plate 14, the bathtub can be reliably supported. By setting the frame body 13, the overall structural strength of the support plate 14 is enhanced, preventing the support plate 14 from bending or deforming, thus ensuring the performance of supporting the bathtub.

[0036] In order to make the frame body 13 have the advantages of simple structure, easy implementation and easy manufacturing, as shown in Figures 3 and 4, the frame body 13 is a rectangular frame structure connected by two horizontal bars 131 and two vertical bars 132.

[0037] To further improve the overall structural strength of the frame 13 and make it less prone to deformation and bending, as shown in Figures 3 and 4, a reinforcing rod 133 is also connected between the transverse rod 131 and the longitudinal rod 132.

[0038] In practical applications, the support plate 14 of the first bathtub support frame 1 can be configured in two ways: First, the support plate 14 of the first bathtub support frame 1 can also be provided with a bathtub sleeve opening 21, making the structure of the first bathtub support frame 1 consistent with that of the second bathtub support frame 2. This makes the production and manufacturing of the first bathtub support frame 1 easier and reduces the number of molds used for the bathtub stacking support structure. Second, the first bathtub support frame 1 does not have a bathtub sleeve opening 21. This not only gives the support plate 14 of the first bathtub support frame 1 excellent support and load-bearing performance, but also provides better protection for the bathtub 100 located at the bottom, preventing debris on the ground from scratching the bathtub 100 of the first bathtub support frame 1.

[0039] When the second scheme of the support plate 14 of the first bathtub tray frame 1 is adopted, in order to further improve the overall structural strength of the frame 13, enhance its and the support load-bearing performance of the support plate 14, and prevent deformation and bending, as shown in Figure 3, a load-bearing rod 134 is also connected between the two transverse rods 131 or between the two longitudinal rods 132 of the first bathtub tray frame 1. Preferably, there are two load-bearing rods 134, and the two load-bearing rods 134 are arranged in parallel at intervals.

[0040] To prevent wear and tear on the surface of the bathtub 100 when it comes into contact with the first bathtub support frame 1 and the second bathtub support frame 2, and to ensure that the surface of the bathtub 100 remains intact during transportation, as shown in Figure 5, a cardboard 141 is also provided on the top surface of the support plate 14. This reduces the hard contact between the bathtub 100 and the first bathtub support frame 1 and the second bathtub support frame 2, greatly reducing the likelihood of wear and tear on the bathtub 100.

[0041] Since the bathtub 100 is placed open-topped on the first bathtub support 1 and the second bathtub support 2, the bathtub 100 will not touch the ground. To further reduce the overall height of the stacked bathtubs, as shown in Figure 2, the height of the legs 12 of the first bathtub support 1 is lower than the height of the legs 12 of the second bathtub support 2. This further reduces the overall stacking height, increases the number of bathtubs that can be stacked, and does not affect the passage of the lifting equipment for lifting.

[0042] To prevent the second bathtub tray 2 from becoming loose and falling off during transportation, this utility model also includes a strap 7 for binding the second bathtub tray 2 and the first bathtub tray 1 together. In practical application, as shown in Figure 7, the strap 7 is used to bind the uppermost bathtub 100 together, which further prevents it from becoming loose and falling off. In practical application, the strap 7 can be a strip of material such as cloth or steel straps that can be used to bind goods.

[0043] To increase the stacking capacity of this invention, as shown in Figures 6 and 7, the number of second bathtub tray frames 2 is two or more, and the two second bathtub tray frames 2 are stacked on top of each other. The bottom of the four legs 12 of one second bathtub tray frame 2 is respectively embedded into the four positioning notches 11 of the other second bathtub tray frame 2. Preferably, the number of second bathtub tray frames 2 is six, which, together with the first bathtub tray frame 1 as the bottom layer, can achieve a seven-layer stacking.

[0044] In practical applications, the horizontal bar 131, vertical bar 132, reinforcing bar 133, load-bearing bar 134, and support leg 12 are all made of 40×40mm galvanized square tubing, resulting in a stable structure and high compressive strength. The positioning notch 11 is a 45×45mm rectangular notch structure. The thickness of the support plate 14 is 15mm. The height of the support leg 12 of the first bathtub tray frame 1 is 110mm, and the height of the support leg 12 of the second bathtub tray frame 2 is 220mm.

[0045] In practical applications, the fixing block 3 is made of wood, which makes it less likely to scratch the bathtub, and the material cost of wood is low.

[0046] As shown in Figures 1, 2, 6, and 7, this utility model is stacked through the following steps:

[0047] Step 1: Place one of the bathtubs 100 with its opening facing down on the first bathtub tray 1, and fix the bathtub 100 to the center of the first bathtub tray 1 using multiple fixing blocks 3 arranged around the bathtub 100. Similarly, place the other bathtub 100 with its opening facing down on the second bathtub tray 2, and fix the other bathtub 100 to the center of the second bathtub tray 2 using multiple fixing blocks 3 arranged around the bathtub 100.

[0048] The second step is to place the first bathtub support frame 1 as the bottom layer, and then place the second bathtub support frame 2 on top of the first bathtub support frame 1. The bathtub insertion opening 21 of the second bathtub support frame 2 is then fitted onto the bathtub 100 of the first bathtub support frame 1, so that the bathtub 100 of the first bathtub support frame 1 can pass through the bathtub insertion opening 21 and be placed inside the bathtub 100 of the second bathtub support frame 2. This achieves the purpose of stacking the bathtubs and reducing the overall stacking height. The bottoms of the four support legs 12 of the second bathtub support frame 2 are then embedded into the four positioning notches 11 of the first bathtub support frame 1.

[0049] The third step is to tie the first bathtub tray 1, the second bathtub tray 2, and the bathtub 100 located on the top layer together using straps 7.

[0050] In practical applications, when there are two or more second bathtub support frames 2, the two second bathtub support frames 2 are stacked on top of each other, and the bottom of the four legs 12 of one second bathtub support frame 2 is respectively embedded into the four positioning notches 11 of the other second bathtub support frame 2. Specifically, when there are six second bathtub support frames 2, there are seven bathtubs 100. One bathtub 100 is placed on the first bathtub support frame 1, and the remaining six bathtubs 100 are placed on their respective second bathtub support frames 2. The remaining six bathtubs 100 are fixed to the center position of their respective second bathtub support frames 2 by multiple fixing blocks 3 in the manner described in the first step above. After the bathtubs 100 are fixed, the six second bathtub support frames 2 are stacked on top of each other in the manner described in the second step above. Finally, the first bathtub support frame 1, the six second bathtub support frames 2, and the bathtub 100 on the top layer are tied together with straps 7 to complete the stacking.

Claims

1. A bath stacker structure, characterised by: The bathtub includes a first bathtub tray (1) and at least one second bathtub tray (2). The first bathtub tray (1) and the second bathtub tray (2) are each provided with several fixing blocks (3) arranged around the bathtub and clamping it in place. Positioning notches (11) are provided at the four corners of the top of the first bathtub tray (1) and the second bathtub tray (2). Support legs (12) are provided at the four corners of the bottom of the first bathtub tray (1) and the first bathtub tray (1). A first hollow cavity (10) is formed between the bottom surface and its four legs (12), and a second hollow cavity (20) is formed between the bottom surface of the second bathtub tray frame (2) and its four legs (12). The middle part of the second bathtub tray frame (2) is also provided with a bathtub sleeve opening (21) that is vertically through. The second bathtub tray frame (2) is stacked on the first bathtub tray frame (1), and the bottom of the four legs (12) of the second bathtub tray frame (2) is respectively embedded into the four positioning notches (11) of the first bathtub tray frame (1).

2. The bathtub stacking bracket structure according to claim 1, characterized in that: It also includes several locking screws (4), and each of the fixing blocks (3) is fixed to the corresponding first bathtub tray frame (1) and second bathtub tray frame (2) by the locking screws (4).

3. The bathtub stacking bracket structure according to claim 1, characterized in that: The first bathtub tray frame (1) and the second bathtub tray frame (2) each include a frame body (13) and a support plate (14) set on the top surface of the frame body (13); the four positioning notches (11) are respectively set on the four corners of the support plate (14), the four legs (12) are respectively set on the four corners of the frame body (13), and the bathtub through-hole (21) is set on the support plate (14) of the second bathtub tray frame (2).

4. The bath stack cradle structure according to claim 3, wherein: The frame body (13) is a rectangular frame structure formed by connecting two horizontal bars (131) and two vertical bars (132).

5. The bathtub stacking bracket structure according to claim 4, characterized in that: A reinforcing rod (133) is also connected between the transverse rod (131) and the longitudinal rod (132).

6. The bath stack cradle structure according to claim 4, wherein: A load-bearing rod (134) is also connected between the two transverse rods (131) of the first bathtub tray frame (1) or between the two longitudinal rods (132) of the first bathtub tray frame (1).

7. The bath stack cradle structure according to claim 3, wherein: The top surface of the support plate (14) is also provided with cardboard (141).

8. The bathtub stacking cradle structure according to claim 1, wherein: The height of the support leg (12) of the first bathtub tray (1) is lower than the height of the support leg (12) of the second bathtub tray (2).

9. The bath stack cradle structure according to claim 1, wherein: It also includes a strap (7) for binding the second bathtub tray (2) together with the first bathtub tray (1).

10. The bathtub stacking bracket structure according to claim 1, characterized in that: There are two or more second bathtub trays (2), and the two second bathtub trays (2) are stacked on top of each other. The bottom of the four legs (12) of one second bathtub tray (2) is embedded into the four positioning notches (11) of the other second bathtub tray (2).

Citation Information

Patent Citations

  • Stackable packaging structure for artificial stone bathtubs

    CN215972617U