CN218884277U - Electric water heater - Google Patents

Electric water heater Download PDF

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Publication number
CN218884277U
CN218884277U CN202222334055.9U CN202222334055U CN218884277U CN 218884277 U CN218884277 U CN 218884277U CN 202222334055 U CN202222334055 U CN 202222334055U CN 218884277 U CN218884277 U CN 218884277U
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CN
China
Prior art keywords
inner container
water heater
closed end
electric water
supporting
Prior art date
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Active
Application number
CN202222334055.9U
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Chinese (zh)
Inventor
杨涛
蔡想周
郑涛
王锦超
赵春艳
李飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Economic And Technology Development District Haier Water Heater Co ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Economic And Technology Development District Haier Water Heater Co ltd
Haier Smart Home Co Ltd
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Publication date
Application filed by Qingdao Economic And Technology Development District Haier Water Heater Co ltd, Haier Smart Home Co Ltd filed Critical Qingdao Economic And Technology Development District Haier Water Heater Co ltd
Priority to CN202222334055.9U priority Critical patent/CN218884277U/en
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Publication of CN218884277U publication Critical patent/CN218884277U/en
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Abstract

The utility model discloses an electric water heater, including inner bag and shell, be formed with the installation cavity in the shell, one side of the inside wall of installation cavity with inner bag fixed connection, the opposite side of the inside wall of installation cavity is formed with the supporting part, the supporting part is used for injecing the radial and axial degree of freedom of inner bag. Be formed with the installation cavity in the shell, the inner bag is installed in this installation cavity, in order to realize the injecing of the relative shell's of inner bag position, one side and the inner bag fixed connection of the inside wall of installation cavity, the opposite side of the inside wall of installation cavity is formed with the supporting part, the supporting part is used for injecing the radial and axial degree of freedom of inner bag, thereby replace original utilization foaming bed course to support the form of inner bag, thereby be convenient for the packing of the foaming material of electric water heater, improve the efficiency, guaranteed simultaneously that the relative position of inner bag and shell does not change.

Description

Electric water heater
Technical Field
The utility model belongs to the technical field of domestic appliance, especially, relate to an electric water heater.
Background
The water heater is a household appliance commonly used in daily life of people, and is divided into an electric water heater, a heat pump water heater, a solar water heater and the like. Electric water heaters are widely used because of their convenient use. The water storage type electric water heater is provided with the water tank, has the characteristics of large water yield, stable water temperature and the like, and is purchased and used by more families. For a conventional storage type electric water heater, it usually includes
A shell, an inner container, an electric appliance chamber, a heat-insulating layer and the like.
In the existing common electric water heater, the rear side of the electric water heater is connected with the inner container and the shell through the mounting bracket, so that the inner container and the shell of the electric water heater are fixed, and the foaming cushion layer is often arranged in the electric water heater, so that the relative position of the inner container and the shell is limited. Then, the arrangement of the foaming cushion layer can affect the filling of the foaming material between the shell and the inner container of the electric water heater, thereby affecting the heat preservation effect of the water heater, and the increase of the material cost and the extension of the installation time of the electric water heater can be caused due to the addition of parts.
Therefore, how to design an electric water heater is convenient for the filling of the foaming material between the outer shell and the inner container of the electric water heater, and simultaneously, the installation is more convenient, so that the technical problem to be solved is urgent.
Disclosure of Invention
The utility model provides an electric water heater, the packing of expanded material between electric water heater shell and the inner bag of being convenient for makes the installation more convenient simultaneously.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
an electric water heater comprises an inner container and an outer shell, wherein an installation cavity is formed in the outer shell, one side of the inner side wall of the installation cavity is fixedly connected with the inner container, a supporting part is formed on the other side of the inner side wall of the installation cavity, and the supporting part is used for limiting the radial and axial freedom degrees of the inner container.
In some embodiments of the present application, the electric appliance further comprises an electric appliance chamber, wherein a mounting groove is formed on the electric appliance chamber, and the electric appliance chamber is arranged in the mounting cavity; the inner container comprises an open end and a closed end, the open end and the closed end are in butt joint to form the inner container, and the open end is installed in the installation groove; the supporting part comprises a first supporting component and a second supporting component, the first supporting component is arranged on the side wall of one side, facing the inner container, of the electric appliance chamber, the first supporting component abuts against the opening end, the second supporting component is arranged on the inner side wall of the shell, and the second supporting component abuts against the closed end. The relative position between the inner container and the shell is determined by the arrangement of the first supporting component and the second supporting component.
In some embodiments of the present application, the first support assembly includes a plurality of first support ribs extending in an axial direction of the liner.
In some embodiments of the present application, the number of the first support ribs is two, and the two first support ribs are symmetrically arranged with respect to an axis of the liner; the surface of the open end is formed by connecting the arc-shaped surface of the open end with the vertical peripheral side surface of the open end, and the two first supporting ribs are abutted against the arc-shaped surface of the open end.
In some embodiments of this application, the interval is provided with a plurality of first archs on the first support muscle, first protruding edge the radial direction of open end extends the setting, first bellied surface with the design is followed to the shape of open end arcwall face. Through the shape following design of first arch and open end arcwall face, realize the closely laminating of first arch and inner bag to improve the stability of first arch to the support of inner bag.
In some embodiments of the present application, the second support assembly includes a plurality of second radial support ribs extending along an axial direction of the liner.
In some embodiments of the present application, the number of the second support ribs is two, and the two second support ribs are symmetrically arranged with respect to an axis of the inner container; the outer surface of the closed end is formed by connecting an arc-shaped surface of the closed end with the vertical peripheral side surface of the closed end, and the two second support ribs are abutted against the connecting part of the arc-shaped surface of the closed end and the vertical peripheral side surface of the closed end; one end of the second support rib extends towards the closed end arc-shaped surface, and the other end of the second support rib extends towards the vertical peripheral side of the closed end.
In some embodiments of the present application, the second support assembly further includes two auxiliary support ribs, two of the auxiliary support ribs are disposed on two sides of the second support rib, and the auxiliary support ribs abut against a joint between the arc-shaped surface of the closed end and the vertical circumferential side surface of the closed end.
In some embodiments of the present application, the second support rib is formed with a second protrusion, the second protrusion extends along the axial direction of the closed end, and a surface of the second protrusion is conformal with an outer surface of the closed end. Through the shape following design of the second protrusion and the arc-shaped surface of the opening end, the second protrusion is tightly attached to the inner container, and therefore the stability of the second protrusion for supporting the inner container is improved.
In some embodiments of the present application, a communicating foaming space is formed between the outer shell and the inner container; and/or the outer surface of the shell is connected with a foaming space communicated between the decorative layer shell and the inner container, so that the heat insulation performance of the electric water heater can be improved. Meanwhile, the outer surface of the shell of the electric water heater is connected with the decorative layer, so that the attractiveness of the electric water heater can be improved.
Compared with the prior art, the utility model discloses an advantage is with positive effect:
an installation cavity is formed in the shell, the inner container is installed in the installation cavity, in order to achieve the limitation of the position of the inner container relative to the shell, one side of the inner side wall of the installation cavity is fixedly connected with the inner container, a supporting part is formed on the other side of the inner side wall of the installation cavity and used for limiting the radial and axial freedom degree of the inner container, and therefore the original mode that the inner container is supported by a foaming cushion layer is replaced, the filling of foaming materials of the electric water heater is facilitated, the energy efficiency is improved, and meanwhile the relative position of the inner container and the shell is guaranteed not to change.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a housing of an embodiment of an electric water heater according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a schematic structural diagram of an electric appliance chamber according to an embodiment of the present invention;
FIG. 4 is a partial enlarged view of FIG. 3 at B;
fig. 5 is a schematic view illustrating an assembly of an electric appliance chamber and an inner container according to an embodiment of the present invention;
fig. 6 is a schematic view of an overall structure of an embodiment of an electric water heater according to the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at C;
fig. 8 is a cross-sectional view of an embodiment of an electric water heater of the present invention;
description of reference numerals:
100, an inner container;
110, an open end;
111, bile orifice;
112, open end arc face;
113, an open end vertical peripheral side;
120, closed end;
121, closed end arc face;
122, a closed end vertical peripheral side;
200, a housing;
210, a mounting cavity;
300, an electric appliance room;
310, mounting grooves;
410, a first support assembly;
411, first support ribs;
412, a first bump;
420, a second support member;
421, a second support rib;
422, a second bump;
423, auxiliary support ribs;
424, third bump;
and 500, mounting a bracket.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
In the description of the present specification, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In this embodiment, a support structure is provided to support the inner container 100 instead of the original foam cushion.
The electric water heater includes a casing 200 in addition to the inner container 100. A mounting cavity 210 is formed in the outer case 200, and the inner container 100 is mounted in the mounting cavity 210.
One side of the inner side wall of the installation cavity 210 is fixedly connected with the inner container 100. Specifically, as shown in fig. 8, the inner container 100 is connected to the outer container 200 by a mounting bracket 500.
In the present embodiment, a side of the inner container 100 connected to the outer case 200 by the mounting bracket is defined as a rear sidewall of the inner container 100. The side opposite the rear side wall is defined as the front side wall of the inner container 100.
The front side wall of the shell 200 is defined as the outer side wall sleeved outside the front side wall of the inner container 100; the rear side wall of the housing 200 is defined as the outer side wall of the inner container 100.
In this embodiment, the outer surface of the front sidewall of the outer shell 200 of the electric water heater is decorated by adhering acrylic or other decorative materials.
The inner container 100 of the electric water heater is filled with water, so that the electric water heater is heavy in weight. After the rear sidewall of the inner container 100 is connected to the outer container 200 through the mounting bracket and then mounted on a wall, the front sidewall of the inner container 100 may be deformed downward due to gravity, so that a positional deviation of the inner container 100 with respect to the outer container 200 may occur.
Therefore, a support 300 is provided on a side of the inner wall of the mounting cavity 210 close to the front wall of the inner container 100, and supports the front wall of the inner container 100. To define the degrees of freedom of the inner container 100 in its radial direction as well as in its axial direction.
In this embodiment, the electric water heater further includes an appliance chamber 300.
The mounting cavity 210 is formed in the housing 200, the appliance chamber 300 is mounted in the housing 200, and the mounting cavity 210 forming the inner container 100 is enclosed by the appliance chamber 300 and the housing 200. The inner container 100 is accommodated in this installation cavity 210.
In this embodiment, the electric appliance chamber 300 is provided with a mounting groove 310.
The bladder 100 includes an open end 110 and a closed end 120. The open end 110 and the closed end 120 are coaxially butted to form the inner container 100.
The opening end 110 is provided with a liner opening 111, and the liner opening 111 is arranged in the mounting groove 310.
The support portion includes a first support assembly 410 and a second support assembly 420.
The first support assembly 410 is disposed on a sidewall of the appliance compartment 300 on a side facing the open end 110 of the inner container 100. After the liner opening 111 of the liner 100 is installed in the installation groove 310, the first support member 410 abuts against the open end 110.
Since the rear sidewall of the inner container 100 is mounted by being coupled with the outer case 200 by the mounting bracket, the first support member 410 is disposed only at one side near the front sidewall of the inner container 100.
In this embodiment, the first supporting member 410 includes a plurality of first supporting ribs 411 having a radial shape. A plurality of first support ribs 411 having a radial shape are provided on the inner sidewall of the electric compartment 300 near the front sidewall of the open end 110 of the inner container 100.
The first support rib 411 extends in the axial direction of the inner container 100.
In the present embodiment, the outer surface of the open end 110 is formed by connecting an open end arc-shaped surface 112 and an open end vertical peripheral side surface 113.
The first support rib 411 abuts against the open-end arc-shaped face 112. The first supporting rib 411 extends from the opening end arc-shaped surface 112 to the opening end arc-shaped surface 112 close to the opening end vertical peripheral side surface 113 from the position close to the gallbladder opening 111.
The plurality of first support ribs 411 are symmetrically disposed with respect to the axis of the inner container 100.
The plurality of first support ribs 411 are integrally formed with the appliance compartment 300. The plurality of first support ribs 411 are integrally formed with the electric appliance chamber 300, so that the processing cost can be reduced; and because spare part reduces, can reduce the installation process of electric water heater, improve the installation effectiveness of electric water heater.
A plurality of first protrusions 412 are formed on the surface of the first support rib 411.
The first support rib 411 is in contact with the inner container 100 through the first protrusion 412.
A plurality of first protrusions 412 are provided at intervals on the first support rib 411.
The first protrusion 412 is extended in a radial direction of the open end 110.
The surface of the first protrusion 412 follows the shape of the open-end arc surface 112.
In the present embodiment, the number of the first support ribs 411 is not limited. Specifically, as shown in fig. 3, 4, and 5, the number of the first support ribs 411 is two. The two first support ribs 411 are disposed on the electric appliance compartment 300 near the front sidewall of the inner container 100, and the two first support ribs 411 are symmetrically disposed with respect to the axis of the inner container 100.
In this embodiment, the specific structural form of the first supporting component 410 is not limited, and the structural form of the first supporting component 410 is a form of a plurality of first supporting ribs 411, which is merely illustrated by way of example.
The first support member 410 may also be in the form of a first support ring, which is disposed along the circumferential direction of the open end 110 of the inner container 100 and is provided with a plurality of through holes to facilitate the flow in the cavity formed by the inner container 100 and the outer shell 200 when the foaming material is foamed.
Meanwhile, since the rear sidewall of the inner container 100 is connected to the outer shell 200, the first support assembly 410 may also adopt a first support arc structure to support the front sidewall of the inner container 100, which may also prevent the inner container 100 from deviating.
In this embodiment, the second support member 420 includes a plurality of second support ribs 421 in a radial shape. A plurality of second radial support ribs 421 are disposed on the inner sidewall of the mounting cavity 210 near the front sidewall of the closed end 120 of the inner container 100.
The second support rib 421 extends in the axial direction of the inner container 100.
In this embodiment, the outer surface of the closed end 120 is formed by the closed end arc-shaped face 121 and the closed end vertical circumferential side face 122 connected together.
The second support rib 421 abuts against the joint of the closed end arc-shaped surface 121 and the closed end vertical circumferential side surface 122. The second support rib 421 extends from the closed-end arc-shaped surface 121 to the closed-end vertical circumferential side surface 122.
The plurality of second support ribs 421 are symmetrically disposed with respect to the axis of the inner container 100.
The plurality of second support ribs 421 are integrally formed with the housing 200. The plurality of second support ribs 421 are integrally formed with the housing 200, so that the processing cost can be reduced; and because spare parts are reduced, the installation procedures of the electric water heater can be reduced, and the installation efficiency of the electric water heater is improved.
A second protrusion 422 is formed on the surface of the second support rib 421.
The second support rib 421 contacts the inner container 100 through the second protrusion 422.
The second projection 422 is provided extending in the axial direction of the closed end 120.
The surface of the second protrusion 422 is conformal with the closed end arc-shaped surface 121 and the closed end vertical circumferential side surface 122.
In this embodiment, the number of the second support ribs 421 is not limited. Specifically, as shown in fig. 1, 2, 6, and 7, the number of the second support ribs 421 is two. The two second support ribs 421 are disposed on the mounting cavity 210 near the front side wall of the closed end 120 of the inner container 100, and the two second support ribs 421 are symmetrically disposed with respect to the axis of the inner container 100.
In the present embodiment, as shown in fig. 1 and 6, the two first support ribs 411 and the two second support ribs 421 are disposed on two sides of the axis of the liner 100 near the center of the liner 100 in the radial direction, and mainly play a role in defining the degree of freedom of the liner 100 in the radial direction.
In this embodiment, as shown in fig. 1, 2, 6 and 7, the second support assembly 420 further includes two auxiliary support ribs 423, and the two auxiliary support ribs 423 are disposed on two sides of the two second support ribs 421 in the radial direction of the inner bladder 100.
The auxiliary support rib 423 abuts against the joint of the closed end arc-shaped face 121 and the closed end vertical circumferential side face 122. Since the auxiliary support rib 423 mainly serves to define the degree of freedom in the radial direction of the inner container 100, the length of the auxiliary support rib 423 extending in the axial direction of the inner container 100 is short.
In the present embodiment, the auxiliary support rib 423 is provided with a third protrusion 424, and the third protrusion 424 is provided along the axial direction of the inner container 100.
The surface of the third protrusion 424 follows the outer surface of the closed end 120.
In this embodiment, the specific structural form of the second support assembly 420 is not limited, and the structural form of the second support assembly 420 adopts a form of a plurality of second support ribs 421 and a plurality of auxiliary support ribs 423, which are only described as examples.
The second support assembly 420 may also be in the form of a second support ring, which is disposed along the circumferential direction of the closed end 120 of the inner container 100 and is provided with a plurality of through holes to facilitate the flow in the cavity formed by the inner container 100 and the outer shell 200 when the foaming material is foamed.
Meanwhile, since the rear sidewall of the inner container 100 is connected to the outer shell 200, the second support assembly 420 may also adopt a second support arc structure to support the front sidewall of the inner container 100, which may also prevent the inner container 100 from deviating.
As shown in fig. 1 and 6, since the supporting portion is used to limit the relative position between the casing 200 and the inner container 100, and the supporting portion is in the form of the supporting ribs arranged at intervals, a communicated foaming space is formed between the casing 200 and the inner container 100, and the foaming material can flow in the cavity formed by the inner container 100 and the casing 200 until the cavity is filled up during the foaming process. Therefore, the heat preservation performance of the electric water heater can be improved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the form and details of the embodiments may be made, or equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims (10)

1. An electric water heater, comprising:
an inner container;
the inner container comprises a shell, wherein a mounting cavity is formed in the shell, one side of the inner side wall of the mounting cavity is fixedly connected with the inner container, a supporting part is formed on the other side of the inner side wall of the mounting cavity, and the supporting part is used for limiting the radial and axial degrees of freedom of the inner container.
2. The electric water heater of claim 1,
the electric appliance room is provided with an installation groove and is arranged in the installation cavity;
the inner container comprises an open end and a closed end, the open end and the closed end are in butt joint to form the inner container, and the open end is installed in the installation groove;
the supporting part comprises a first supporting component and a second supporting component, the first supporting component is arranged on the side wall of one side, facing the inner container, of the electric appliance chamber, the first supporting component abuts against the opening end, the second supporting component is arranged on the inner side wall of the shell, and the second supporting component abuts against the closed end.
3. The electric water heater of claim 2, wherein the first support assembly includes a plurality of first radial support ribs extending in an axial direction of the inner container.
4. The electric water heater of claim 3,
the number of the first supporting ribs is two, and the two first supporting ribs are symmetrically arranged relative to the axis of the inner container;
the surface of the open end is formed by connecting the arc-shaped surface of the open end with the vertical peripheral side surface of the open end, and the two first supporting ribs are abutted against the arc-shaped surface of the open end.
5. The electric water heater according to claim 4, wherein the first supporting rib is provided with a plurality of first protrusions at intervals, the first protrusions extend along a radial direction of the opening end, and a surface of each first protrusion is configured to follow an arc-shaped surface of the opening end.
6. The electric water heater of claim 2, wherein the second support assembly includes a plurality of second radial support ribs extending in an axial direction of the inner container.
7. The electric water heater of claim 6,
the number of the second supporting ribs is two, and the two second supporting ribs are symmetrically arranged relative to the axis of the inner container;
the outer surface of the closed end is formed by connecting an arc-shaped surface of the closed end with the vertical peripheral side surface of the closed end, and the two second support ribs are abutted against the connecting part of the arc-shaped surface of the closed end and the vertical peripheral side surface of the closed end;
one end of the second support rib extends towards the closed end arc-shaped surface, and the other end of the second support rib extends towards the vertical peripheral side of the closed end.
8. The electric water heater of claim 7,
the second supporting assembly further comprises two auxiliary supporting ribs, the two auxiliary supporting ribs are arranged on two sides of the second supporting rib, and the auxiliary supporting ribs are abutted to the joint of the arc-shaped face of the closed end and the side face of the vertical periphery of the closed end.
9. The electric water heater according to claim 6, wherein the second support rib is formed with a second protrusion extending along the axial direction of the closed end, and the surface of the second protrusion is conformal with the outer surface of the closed end.
10. The electric water heater of claim 1, wherein:
a communicated foaming space is formed between the outer shell and the inner container;
and/or the outer surface of the shell is connected with a decorative layer.
CN202222334055.9U 2022-09-02 2022-09-02 Electric water heater Active CN218884277U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222334055.9U CN218884277U (en) 2022-09-02 2022-09-02 Electric water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222334055.9U CN218884277U (en) 2022-09-02 2022-09-02 Electric water heater

Publications (1)

Publication Number Publication Date
CN218884277U true CN218884277U (en) 2023-04-18

Family

ID=85944126

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222334055.9U Active CN218884277U (en) 2022-09-02 2022-09-02 Electric water heater

Country Status (1)

Country Link
CN (1) CN218884277U (en)

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