An assembled bathroom wall pier installation structure and its installation method
By adding connecting mother parts and children at the corners of the wall panel of the prefabricated bathroom, and fixing them with 45° oblique sections and adhesives, the problem of low structural strength of the wall stack of the prefabricated bathroom is solved, efficient installation and layout of independent functional areas are achieved, and user experience is improved.
Patent Information
- Application Number
- CN202310468265.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-27
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2043-04-27
AI Technical Summary
The existing prefabricated bathroom wall-stack structure is difficult to install in a narrow space, resulting in low structural strength and affecting the partitioning effect and user experience of the bathroom.
The connecting mother parts and the connecting daughter parts are connected at the corners of the wall panel. The structural strength is enhanced through the 45° oblique section and the insertion section, and fixed with adhesive to ensure installation efficiency and effect.
It improves the structural strength of the prefabricated bathroom wall stack, reduces the probability of deformation and damage, enhances the user experience, and realizes the layout of multiple independent functional areas.
Smart Images

Figure CN116556612B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of decoration, and specifically to an installation structure and an installation method for an assembled bathroom wall pier. Background Art
[0002] Assembled interior decoration refers to dry construction, where the decoration components and equipment pipelines produced in the factory are assembled at the construction site, and the integrated design of the assembled decoration with the structural system, exterior wall system, interior wall system, and equipment pipeline system is comprehensively considered. Assembled interior decoration innovates and simplifies the construction process, and only simple tools and steps are required to complete the decoration, reducing on-site construction cutting, greatly reducing the workload and working cost, and ensuring the timeliness of the decoration.
[0003] With the rise of assembled interior decoration, independent-frame bathroom products are becoming increasingly popular among consumers. Compared with traditional bathrooms, assembled integral bathrooms use dry construction, which is simple, fast, and assembled on-site, greatly improving the efficiency, effectively shortening the construction period, saving the user's usage cost, and facilitating the promotion and application of assembled bathrooms in the market.
[0004] However, in the assembled bathrooms on the market, their internal layout is basically a combined type (all three major functional areas of washing, toileting, and bathing are arranged in the same space area), and there are few independent types (the three major functional areas of washing, toileting, and bathing are independent of each other and do not interfere with each other) or compromise types (two of the three major functions of washing, toileting, and bathing are combined), which affects the user experience.
[0005] The reason is that the production of the wall piers (partition walls) of the existing assembled bathrooms is difficult. Due to space limitations, the installation space on the back of the partition wall is often narrow, and conventional assembled construction methods cannot be used for installation, resulting in low structural strength of the partition wall, affecting the zoning of the bathroom, and reducing the user experience. Summary of the Invention
[0006] In order to overcome the above defects in the prior art, the first object of the present invention is to provide an installation structure for an assembled bathroom wall pier. This installation structure is used to connect between two adjacent assembled wall panels, can effectively ensure the structural strength at the 45° joint of the assembled wall panels, reduce the probability of its deformation and damage, ensure the service performance of the assembled bathroom wall pier, realize various independent ways of the bathroom, enhance the user experience, and facilitate the promotion and application of the above wall pier installation structure in the market. The second object of the present invention is to provide an installation method for the installation structure of the assembled bathroom wall pier, which has the advantages of improving the installation efficiency of the assembled bathroom wall pier and ensuring the installation effect.
[0007] The first inventive object of the present invention, an installation structure for an assembled bathroom wall pier, and the installation method of the installation structure for an assembled bathroom wall pier of the second inventive object are technically interrelated and belong to the same inventive concept.
[0008] To achieve the above first inventive object, the present invention adopts the following technical solutions: An installation structure for an assembled bathroom wall pier, used for connecting two adjacent wall panels. The wall panels have a first support layer and a second support layer. An installation groove is formed between the first support layer and the second support layer. The installation grooves of two adjacent ones form an installation slot, and the end of the second support layer has an inclined section at a 45° angle. The wall pier installation structure includes a connecting female part and a connecting male part. The connecting female part and the connecting male part are installed in the installation slot and are respectively fixed to two adjacent wall panels.
[0009] As a preferred solution of the present invention, the connecting female part includes a female part fixing portion that fits with the first support layer of the wall panel and a female part fitting portion that fits with the second support layer. A female part connecting portion is connected between the female part fixing portion and the female part fitting portion. The end of the female part fitting portion forms a female part abutting portion at a 45° angle.
[0010] As a preferred solution of the present invention, an abutting head is formed at the end of the female part abutting portion, and the abutting head is perpendicular to the female part abutting portion.
[0011] As a preferred solution of the present invention, a female part embedding portion is formed above the female part connecting portion. An embedding groove for embedding the end of the first support layer is formed between the female part embedding portion and the female part fixing portion. The female part embedding portion is embedded in one of the installation grooves.
[0012] As a preferred solution of the present invention, a female part strengthening portion is formed on the side of the female part fixing portion, and the female part strengthening portion is perpendicular to the female part fixing portion.
[0013] As a preferred solution of the present invention, the connecting male part includes a male part fixing portion and a male part fitting portion. A male part connecting portion is formed between the male part fixing portion and the male part fitting portion. The male part connecting portion is perpendicular to the male part fixing portion and the male part fitting portion. And a male part abutting portion at a 45° angle is formed at the end of the male part fitting portion. The male part abutting portion is fitted with the female part abutting portion and the end abuts against the abutting head.
[0014] As a preferred solution of the present invention, a male part embedding portion is formed on the side of the male part connecting portion, and the male part embedding portion is embedded in the other installation groove.
[0015] As a preferred embodiment of the present invention, the sub-component fixing portion is formed with a sub-component strengthening portion that fits with the mother-component strengthening portion; there are two sub-component strengthening portions, and a glue groove is formed between the two sub-component strengthening portions.
[0016] As a preferred embodiment of the present invention, the length of the sub-component abutting portion is longer than that of the mother-component abutting portion and partially extends into the seam groove between two adjacent wall panels.
[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: An assembled bathroom wall pier installation structure in the present invention has a clever installation structure. By adding a connecting mother-component and a connecting sub-component that are convenient for connection at the corners of the wall panels of the bathroom wall pier, while improving the installation efficiency of the wall pier, it can ensure the structural strength of the wall pier, reduce the probability of its damage and deformation, enhance the user experience, and is conducive to the promotion and application of the above-mentioned assembled bathroom wall pier structure in the market.
[0018] Furthermore, by providing a mother-component embedding portion and a sub-component embedding portion that can be embedded into the installation embedding groove on both the connecting mother-component and the connecting sub-component, the present invention can further ensure the structural strength at the corners of the wall panels, and thus ensure the structural strength of the bathroom wall pier.
[0019] Furthermore, by forming a mother-component strengthening portion on the side of the mother-component fixing portion, and the mother-component strengthening portion is perpendicular to the mother-component fixing portion. During the installation and use process, the mother-component strengthening portion is adhered to the sub-component strengthening portion in the sub-component connecting member to prevent the connecting sub-component and the connecting mother-component from falling off during use, and ensure the installation effect and service life of the assembled bathroom wall pier.
[0020] Furthermore, by adding an abutting head in the connecting mother-component, the end of the sub-component abutting portion in the connecting sub-component directly abuts on the above-mentioned abutting head to ensure the firmness between the connecting sub-component and the connecting mother-component.
[0021] Furthermore, a part of the sub-component abutting portion in the present invention extends into the seam groove between two adjacent wall panels, which plays a role in strengthening the structural strength at the joint of the two wall panels.
[0022] To achieve the second invention object, the present invention adopts the following technical solution: An installation method for an assembled bathroom wall pier installation structure, used to install the above-mentioned assembled bathroom wall pier installation structure; including the following installation steps:
[0023] a. Fix the connecting mother-component at the corner of one wall panel;
[0024] b. Fix the connecting sub-component at the corner of the adjacent other wall panel;
[0025] c. Connect the connecting mother-component to the connecting sub-component;
[0026] d. Fill the adhesive in the glue tank;
[0027] e. Repeat the above steps, and fill the caulking agent in the joint grooves between adjacent two wall panels to complete the installation of the bathroom wall pier.
[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: In the installation method of an assembled bathroom wall pier installation structure in the present invention, by applying the above-mentioned assembled bathroom wall pier installation structure, this method has the advantages of improving the installation efficiency of the assembled bathroom wall pier and ensuring the installation effect. Description of the Drawings
[0029] Figure 1 is a schematic structural diagram of an assembled bathroom wall pier installation structure in the embodiment;
[0030] Figure 2 is a schematic structural diagram of a connecting female part in an assembled bathroom wall pier installation structure in the embodiment;
[0031] Figure 3 is a schematic structural diagram of a connecting male part in an assembled bathroom wall pier installation structure in the embodiment;
[0032] Figure 4 is a schematic installation diagram of a wall panel in an assembled bathroom wall pier installation structure in the embodiment;
[0033] Figure 5 is a schematic structural diagram of a wall panel in an assembled bathroom wall pier installation structure in the embodiment;
[0034] Figure 6 is a schematic installation diagram of an assembled bathroom wall pier installation structure in the embodiment.
[0035] Reference Numerals: 1, connecting female part; 1-1, female part fixing portion; 1-2, female part fitting portion; 1-3, female part abutting portion; 1-4, female part strengthening portion; 1-5, female part embedding portion; 1-6, female part connecting portion; 1-7, abutting head; 1-8, embedding groove; 2, connecting male part; 2-1, male part fixing portion; 2-2, male part connecting portion; 2-3, male part embedding portion; 2-4, male part fitting portion; 2-5, male part abutting portion; 2-6, glue tank; 2-7, male part strengthening portion; 3, wall panel; 3-1, first support layer; 3-2, second support layer; 3-3, inclined section; 3-4, installation embedding groove; 4, installation groove; 5, joint groove; 6, fixing member; 7, adhesive; 8, caulking agent. Detailed Embodiments
[0036] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be described below through specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.
[0037] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.
[0038] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0039] Embodiment 1: As Figures 1 to 6 shown, an assembled bathroom wall pier installation structure aims to enhance the structure of the bathroom wall pier, improve the structural strength of the wall pier, and reduce the probability of its deformation. This installation structure is used to connect two adjacent wall panels 3. As Figure 4 shown, the wall pier is usually surrounded by three wall panels 3. To facilitate the installation of the above wall pier installation structure, the wall panel 3 also needs to be slightly adjusted during this process. The wall panel 3 in this embodiment is integrally composed of a decorative panel and a keel, which enhances the structural strength of the wall panel 3 while facilitating installation. The above wall panel 3 has a first support layer 3-1 and a second support layer 3-2, which are the structures of the keel part. An installation groove 3-4 is formed between the first support layer 3-1 and the second support layer 3-2. When the two wall panels 3 are assembled, two adjacent installation grooves 3-4 form an installation slot 4. To avoid interference and other phenomena during the installation process, the length of the first support layer 3-1 is shorter than the length of the second support layer 3-2, and an inclined section 3-3 at a 45° angle is formed at the end of the second support layer 3-2 to achieve the installation of two adjacent wall panels 3. To enhance the structural strength at the corners of the wall pier and reduce the probability of its deformation due to external forces, the wall pier installation structure in this embodiment includes a connecting female part 1 and a connecting male part 2, which are installed in the installation slot 4 and fixed on the wall panel 3 respectively.
[0040] Specifically, the connecting female part 1 in this embodiment includes a female part fixing portion 1-1 that fits with the first support layer 3-1 and a female part fitting portion 1-2 that fits with the second support layer 3-2. During the installation process, the female part fixing portion 1-1 is fixed to the Figure 3On the vertical wall panel 3 as shown, the female part fixing portion 1-1 needs to be attached to the outer surface of the above-mentioned first support layer 3-1, and the female part fitting portion 1-2 is attached to the surface of the above-mentioned second support layer 3-2 to complete the installation of the connecting female part 1. In order to make the connecting female part 1 integrated, which is convenient for manufacturing and installation at the same time, a female part connecting portion 1-6 is integrally formed between the above-mentioned female part fixing portion 1-1 and the above-mentioned female part fitting portion 1-2, that is, the above-mentioned female part fixing portion 1-1, the above-mentioned female part fitting portion 1-2 and the female part connecting portion 1-6 are integrally formed by injection molding or the like.
[0041] Similarly, in order to enhance the structural strength of the wall panel 3, ensure its service life during use, and reduce the probability of its deformation, in this embodiment, a female part embedding portion 1-5 is formed above the above-mentioned female part connecting portion 1-6. An embedding groove 1-8 for embedding the end of the above-mentioned first support layer 3-1 is formed between the above-mentioned female part embedding portion 1-5 and the above-mentioned female part fixing portion 1-1, and the above-mentioned female part embedding portion 1-5 is embedded in the installation embedding groove 3-4 of the above-mentioned wall panel 3. Among them, the first support layer 3-1 is arranged in a plate shape and its plate thickness is adapted to the groove width of the embedding groove 1-8.
[0042] In order to enhance the structural strength of the connecting female part 1 itself and facilitate its connection with the connecting sub-part 2, a female part strengthening portion 1-4 is formed on the side of the above-mentioned female part fixing portion 1-1, and the above-mentioned female part strengthening portion 1-4 is perpendicular to the above-mentioned female part fixing portion 1-1. The above-mentioned connecting sub-part 2 includes a sub-part fixing portion 2-1 and a sub-part fitting portion 2-4. By using fixing parts 6 such as fastening screws, the sub-part fixing portion 2-1 is fixed on the Figure 3 horizontally arranged wall panel 3 as shown. Specifically, the sub-part fixing portion 2-1 is fixed on the first support layer 3-1 of the wall panel 3, and the sub-part fitting portion 2-4 is arranged in contact with the second support layer 3-2 of the wall panel 3. Similarly, a sub-part connecting portion 2-2 is integrally formed between the above-mentioned sub-part fixing portion 2-1 and the above-mentioned sub-part fitting portion 2-4, and the above-mentioned sub-part connecting portion 2-2 is perpendicular to the above-mentioned sub-part fixing portion 2-1 and the above-mentioned sub-part fitting portion 2-4.
[0043] In order to ensure the installation effect of the connecting sub-part 2, a sub-part embedding portion 2-3 is formed on the side of the above-mentioned sub-part connecting portion 2-2, and the above-mentioned sub-part embedding portion 2-3 is embedded in the above-mentioned installation embedding groove 3-4 arranged horizontally to enhance the structural strength of the end of the keel.
[0044] A sub-part strengthening portion 2-7 that fits with the above-mentioned female part strengthening portion 1-4 is formed on the above-mentioned sub-part fixing portion 2-1. There are two of the above-mentioned sub-part strengthening portions 2-7, and a glue groove 2-6 is formed between the two above-mentioned sub-part strengthening portions 2-7. After installing the fastening screw in the glue groove 2-6, after the connecting female part 1 and the connecting sub-part 2 are installed in place, then an adhesive 7 is filled in the above-mentioned glue groove 2-6 to realize the fixed connection between the connecting female part 1 and the connecting sub-part 2.
[0045] A right-angle groove is formed at the lower right corner of the above-mentioned parent part fixing portion 1-1 and the parent part strengthening portion 1-4. The above-mentioned sub-part strengthening portion 2-7 and the sub-part connecting portion 2-2 exactly form a right-angle side, and the right-angle side is fitted and arranged in the right-angle groove. A pressing force is formed between the connecting parent part 1 and the connecting sub-part 2, further ensuring the stability of the above-mentioned wall pier installation structure.
[0046] An installation method for an assembled bathroom wall pier installation structure is used to install the above-mentioned assembled bathroom wall pier installation structure; it includes the following installation steps:
[0047] a. Fix the connecting parent part 1 at the corner of one wall panel 3 (i.e., Figure 3 the vertically arranged wall panel 3) through fastening screws, and perform the leveling work at various angles;
[0048] b. Fix the connecting sub-part 2 at one end (i.e., the corner) of the adjacent other wall panel 3 (i.e., Figure 3 the horizontally arranged wall panel 3) through fastening screws;
[0049] c. Connect the connecting parent part 1 to the connecting sub-part 2 by means of glue or the like;
[0050] d. Fill the adhesive in the glue groove 2-6;
[0051] e. Then fix another connecting parent part 1 on another vertically arranged wall panel 3 through fastening screws, fix another connecting sub-part 2 at the other end of the above-mentioned horizontally arranged wall panel 3 through fastening screws, then connect the connecting sub-part 2 and the connecting parent part 1 in this step, and finally fill the caulking agent 8 in the joint groove 5 between two adjacent wall panels 3 to complete the installation of the bathroom wall pier.
[0052] Embodiment 2: The feature that this embodiment is different from Embodiment 1 is that in an assembled bathroom wall pier installation structure in this embodiment, a parent part abutting portion 1-3 at a 45° angle is formed at the end of the above-mentioned parent part fitting portion 1-2, and an abutting head 1-7 is formed at the end of the above-mentioned parent part abutting portion 1-3. The above-mentioned abutting head 1-7 is vertically arranged with the above-mentioned parent part abutting portion 1-3. Correspondingly, a sub-part abutting portion 2-5 at a 45° angle is formed at the end of the above-mentioned sub-part fitting portion 2-4. The above-mentioned sub-part abutting portion 2-5 is fitted with the above-mentioned parent part abutting portion 1-3 and the end abuts on the above-mentioned abutting head 1-7 to further ensure the structural strength at the corner of the wall panel 3. Among them, the length of the above-mentioned sub-part abutting portion 2-5 is set to be the same as the length of the above-mentioned parent part abutting portion 1-3.
[0053] Embodiment 3: The feature that differentiates this embodiment from Embodiment 2 is that in an assembled bathroom wall pier installation structure in this embodiment, the length of the sub-component abutting portion 2-5 is longer than that of the mother-component abutting portion 1-3 and partially extends into the joint groove 5 between two adjacent above-mentioned wall panels 3, further enhancing the structural strength at the connection of two adjacent wall panels 3, reducing the probability of deformation due to external forces, thereby separating the bathroom space by function and enhancing the user experience.
[0054] Embodiment 4: The feature that differentiates this embodiment from Embodiment 1 is that in an assembled bathroom wall pier installation structure in this embodiment, in order to reduce the weight of the connecting mother-component 1 and the connecting sub-component 2 themselves, the mother-component embedding portion 1-5, the sub-component embedding portion 2-3, and the sub-component strengthening portion 2-7 are all designed as hollow structures, saving the expenditure on production materials and thus reducing the user's usage cost.
[0055] In an assembled bathroom wall pier installation structure in the above embodiments, the installation structure is ingenious. By adding the connecting mother-component 1 and the connecting sub-component 2 that are convenient for connection at the corners of the wall panel 3 of the bathroom wall pier, while improving the installation efficiency of the wall pier, it can ensure the structural strength of the wall pier, reduce the probability of its damage and deformation, enhance the user experience, and is conducive to the promotion and application of the above-mentioned assembled bathroom wall pier structure in the market.
[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.
[0057] Although the terms such as the reference numerals in the drawings: 1, connecting mother-component; 1-1, mother-component fixing portion; 1-2, mother-component fitting portion; 1-3, mother-component abutting portion; 1-4, mother-component strengthening portion; 1-5, mother-component embedding portion; 1-6, mother-component connecting portion; 1-7, abutting head; 1-8, embedding groove; 2, connecting sub-component; 2-1, sub-component fixing portion; 2-2, sub-component connecting portion; 2-3, sub-component embedding portion; 2-4, sub-component fitting portion; 2-5, sub-component abutting portion; 2-6, glue groove; 2-7, sub-component strengthening portion; 3, wall panel; 3-1, first support layer; 3-2, second support layer; 3-3, inclined section; 3-4, installation embedding groove; 4, installation groove; 5, joint groove; 6, fixing member; 7, adhesive; 8, caulking agent are used more in this article, it does not exclude the possibility of using other terms. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.
Claims
1. An assembled bathroom wall pier installation structure, characterized in that: For connecting adjacent two wall panels (3), the wall panel (3) has a first support layer (3-1) and a second support layer (3-2), an installation groove (3-4) is formed between the first support layer (3-1) and the second support layer (3-2), two adjacent installation grooves (3-4) form an installation slot (4), and the end of the second support layer (3-2) has an inclined section (3-3) at a 45° angle; the wall pier installation structure includes a connecting female part (1) and a connecting male part (2), the connecting female part (1) and the connecting male part (2) are installed in the installation slot (4) and are respectively fixed to two adjacent wall panels (3); the connecting female part (1) includes a female part fixing part (1-1) that fits with the first support layer (3-1) and a female part fitting part (1-2) that fits with the second support layer (3-2), a female part connecting part (1-6) is connected between the female part fixing part (1-1) and the female part fitting part (1-2), a female part abutting part (1-3) at a 45° angle is formed at the end of the female part fitting part (1-2); an abutting head (1-7) is formed at the end of the female part abutting part (1-3), the abutting head (1-7) is perpendicular to the female part abutting part (1-3), a female part embedding part (1-5) is formed above the female part connecting part (1-6), an embedding slot (1-8) for embedding the end of the first support layer (3-1) is formed between the female part embedding part (1-5) and the female part fixing part (1-1), the female part embedding part (1-5) is embedded in one of the installation grooves (3-4), a female part strengthening part (1-4) is formed on the side of the female part fixing part (1-1), the female part strengthening part (1-4) is perpendicular to the female part fixing part (1-1), the connecting male part (2) includes a male part fixing part (2-1) and a male part fitting part (2-4), a male part connecting part (2-2) is formed between the male part fixing part (2-1) and the male part fitting part (2-4), the male part connecting part (2-2) is perpendicular to the male part fixing part (2-1) and the male part fitting part (2-4), and a male part abutting part (2-5) at a 45° angle is formed at the end of the male part fitting part (2-4), the male part abutting part (2-5) is in fit with the female part abutting part (1-3) and the end abuts against the abutting head (1-7).
2. The installation structure of an assembled bathroom wall pier according to claim 1, characterized in that: A male part embedding part (2-3) is formed on the side of the male part connecting part (2-2), and the male part embedding part (2-3) is embedded in the other installation groove (3-4).
3. The assembled bathroom wall pier installation structure according to claim 2, characterized in that: A male part strengthening part (2-7) that fits with the female part strengthening part (1-4) is formed on the male part fixing part (2-1); there are two male part strengthening parts (2-7), and a glue groove (2-6) is formed between the two male part strengthening parts (2-7).
4. The installation structure of a prefabricated bathroom wall pier according to claim 1, characterized in that: The length of the male part abutting part (2-5) is longer than that of the female part abutting part (1-3) and part of it extends into the joint groove (5) of two adjacent wall panels (3).
5. A method for installing an assembled bathroom wall pier installation structure, which is used to install an assembled bathroom wall pier installation structure as described in any one of claims 1 to 4; characterized in that: It includes the following installation steps: a. Fix the connecting female part (1) at the corner of one wall panel (3); b. Fix the connecting male part (2) at the corner of another adjacent wall panel (3); c. Connect the connecting female part (1) to the connecting male part (2); d. Fill the glue groove (2-6) with adhesive; e. Repeat the above steps and fill the joint groove (5) between two adjacent wall panels (3) with sealant to complete the installation of the bathroom wall pier.
Citation Information
Patent Citations
Assembly type bathroom wall pier mounting structure
CN219825926U