CN214195353U - Wallboard and bathroom - Google Patents

Abstract

The application provides a wallboard and bathroom relates to bathroom equipment technical field. The wall plate comprises at least one wall plate unit, each wall plate unit comprises an upright post, a connecting structure and two unit plates, and the two unit plates are arranged on two opposite sides of the upright post through the connecting structure; the connecting structure comprises a connecting piece and two limiting pieces, mounting holes penetrating through two opposite sides of the stand column are formed in the stand column, the connecting piece comprises two extending parts, the connecting piece penetrates through the mounting holes, and the two extending parts are located outside the mounting holes; each unit plate is correspondingly hung on one extension part, each extension part is correspondingly provided with a limiting part, and the limiting parts are used for limiting the unit plates to move towards the direction close to or far away from the upright post. When two locating parts are fixed in the extension that corresponds, two locating parts are with the fixed position of two cell boards, avoid two cell boards to move in the direction that two locating parts were arranged, and cause the piece joint of the board of two units to change, influence the waterproof performance of wallboard.

Description

Wallboard and bathroom

Technical Field

The application relates to the technical field of bathroom equipment, particularly, relate to a wallboard and bathroom.

Background

At present, the existing ceramic tile veneer integrated bathroom wallboards in the domestic market are vertically fixed and connected through embedded nylon connecting pieces, and the wallboards are not firmly connected and are easy to break; the joint of the wall board has large gap and is easy to leak.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a wallboard and bathroom to improve the insecure problem of current wallboard connection.

In a first aspect, an embodiment of the present application provides a wall panel, including at least one wall panel unit, where each wall panel unit includes a pillar, a connecting structure, and two cell plates, and the two cell plates are installed on two opposite sides of the pillar through the connecting structure; the connecting structure comprises a connecting piece and two limiting pieces, mounting holes penetrating through two opposite sides of the stand column are formed in the stand column, the connecting piece comprises two extending parts, the connecting piece penetrates through the mounting holes, and the two extending parts are located outside the mounting holes; each unit plate is correspondingly hung on one extension part, each extension part is correspondingly provided with a limiting part, and the limiting parts are used for limiting the unit plates to move towards the direction close to or far away from the upright post.

Among the above-mentioned technical scheme, when two locating parts are fixed in the extension that corresponds, two locating parts are with the rigidity of two cell boards, avoid two cell boards to move in the direction that two locating parts were arranged, and cause the piece joint of the board of two units to change, influence the waterproof performance of wallboard.

In some embodiments of the first aspect of the present application, the retaining member is threadedly engaged with the extension portion corresponding thereto.

Among the above-mentioned technical scheme, locating part and extension spiro union have realized locating part and extension fixed connection promptly after the spiro union is accomplished, need not additionally set up fixed knot and construct. And, through the spiro union length of adjusting locating part and extension, adjust the distance between two locating parts to adjust the piece size between two cell boards, also can adapt to the cell board of unidimensional not.

In some embodiments of the first aspect of the present application, the position-limiting member includes a circular truncated cone section, the circular truncated cone section is provided with a first threaded hole for screwing the extending portion, and the first threaded hole penetrates through two axial ends of the circular truncated cone section; the keel frame of the unit plate is provided with a hook part, the unit plate is hung on the extension part through the hook part, and one end surface of the circular platform section is tightly propped against the side surface of the hook part.

Among the above-mentioned technical scheme, first screw hole runs through the axial both ends of round platform section for the relative extension of locating part scope of adjusting is bigger, makes the piece adjustment range between two cell boards bigger, and the scope that two locating parts were injectd also can adapt to more not unidimensional cell boards.

In some embodiments of the first aspect of the present application, the small end of the truncated cone section abuts against the side surface of the hook portion, and the large end of the truncated cone section is far away from the hook portion.

Among the above-mentioned technical scheme, the tip of round platform section supports tightly with the side of couple portion, and couple portion is kept away from to the main aspects of round platform section, and the relative stand of restriction cell board that not only can be better removes, and fastening effect is better, still is convenient for install the locating part on the extension.

In some embodiments of the first aspect of the present application, the position-limiting member further includes an extending section, and the extending section is connected to an end surface of the circular platform section, which abuts against the hook portion; the first threaded hole penetrates through the circular platform section and the extension section in sequence.

Among the above-mentioned technical scheme, the setting of extension for the couple portion on the fossil fragments frame of cell board can be at least partly hung through the extension and detain on the extension, makes cell board and locating part cooperation inseparabler, is favorable to the firm connection of cell board, and the cell board also can be followed the removal of locating part and removed, the regulation of the piece between two cell boards of being convenient for.

In some embodiments of the first aspect of the present application, the vertical columns are provided with a plurality of mounting holes at intervals along the length direction, and the cell plate includes a plurality of connecting structures, and the connecting structures are arranged in one-to-one correspondence with the mounting holes.

Among the above-mentioned technical scheme, every wallboard unit board includes a plurality of connection structure of interval arrangement in length direction for the structure of wallboard unit is more firm, makes the waterproof performance of wallboard unit better.

In some embodiments of the first aspect of the present application, the limiting member has a second threaded hole on a peripheral wall thereof; the connecting structure further comprises a locking piece, and the locking piece is in threaded connection with the second threaded hole and abuts against the peripheral wall of the extending portion to limit the limiting piece to rotate circumferentially relative to the extending portion.

Among the above-mentioned technical scheme, the setting of retaining member can avoid the locating part to lead to the fact the not hard up piece grow between the cell board of locating part to influence waterproof performance because of vibrations etc..

In some embodiments of the first aspect of the present application, the cell plates include a veneer and a keel frame connected to a back side of the veneer, the stud being located on the back side of the veneer and between the keel frames of the two cell plates.

Among the above-mentioned technical scheme, the stand is located the rear of decorative board, can avoid the stand to influence the decorative board of cell board pleasing to the eye under the prerequisite of guaranteeing connection performance.

In some embodiments of the first aspect of the present application, each cell plate comprises a plurality of facing plates arranged vertically; the wallboard further comprises at least one cross, the cross is provided with four supporting parts, every two adjacent supporting parts are vertically arranged, the cross is located between the two unit boards, and each supporting part is located between the two veneer boards.

In the technical scheme, the arrangement of the cross can control the abutted seam between two adjacent unit plates within a required range.

In a second aspect, an embodiment of the present application provides a bathroom, including a base plate and a wall plate provided according to the first aspect, wherein a lower end of the wall plate is connected to the base plate; the chassis includes bottom plate and anti-bank, and anti-bank is installed in the bottom plate, and anti-bank sets up along the edge of bottom plate, and the wallboard is located the inboard of anti-bank and with install in the bottom plate.

Among the above-mentioned technical scheme, the wallboard passes through connection structure and stabilizes the connection, and when two locating parts were fixed in the extension that corresponds, two locating parts were with the rigidity of two cell boards, avoided two cell boards to move in the direction that two locating parts were arranged, and caused the piece of the board of two units to change, influenced the waterproof performance of wallboard to make the waterproof performance of bathroom better. The anti-bank can improve the waterproof performance of bathroom.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic view of a wall panel provided by an embodiment of the present application from a first perspective;

FIG. 2 is a schematic view of a wall panel provided by an embodiment of the present application from a second perspective;

FIG. 3 is an enlarged view taken at I in FIG. 2;

fig. 4 is a schematic view of a first viewing angle of a unit plate provided in an embodiment of the present application;

FIG. 5 is a schematic diagram of a second viewing angle of a cell plate according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram illustrating a third view angle of a cell plate according to an embodiment of the present disclosure;

FIG. 7 is an enlarged view taken at II in FIG. 6;

FIG. 8 is a schematic view of a position limiting member;

FIG. 9 is a schematic view of a cross;

FIG. 10 is a schematic view of a wall panel provided with a cross;

fig. 11 is an enlarged view at III in fig. 10.

Icon: 100-wallboard; 10-a wall panel unit; 11-upright post; 111-mounting holes; 12-a linking structure; 121-a connector; 122-a stop; 1221-a first threaded hole; 1222-a circular table segment; 1223-an extension; 1224-a second threaded hole; 123-a locking member; 13-a cell plate; 131-a keel frame; 1311-a first side; 1312-a second side; 1313-fifth side; 1314-sixth side; 1315-hook portion; 132-a veneer; 1321-third side; 1322-fourth side; 1323-seventh side; 1324-eighth side; 14-a cross; 141-branch; a-a first direction; b-a second direction.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is conventionally understood by those skilled in the art, is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Examples

As shown in fig. 1 to 10, the present application provides a wall panel 100, the wall panel 100 includes at least one wall panel unit 10, each wall panel unit 10 includes a vertical column 11, a connecting structure 12 and two unit panels 13, the two unit panels 13 are mounted on two opposite sides of the vertical column 11 through the connecting structure 12; the connecting structure 12 includes a connecting member 121 and two limiting members 122, the upright post 11 is provided with mounting holes 111 penetrating through two opposite sides of the upright post 11, the connecting member 121 includes two extending portions, the connecting member 121 is inserted into the mounting holes 111, and the two extending portions are located outside the mounting holes 111; each unit plate 13 is hung on one extension portion correspondingly, each extension portion is provided with a limiting member 122 correspondingly, and the limiting member 122 is used for limiting the unit plates 13 to move towards the direction close to or away from the upright post 11. When the two limiting members 122 are fixed to the corresponding extending portions, the two limiting members 122 fix the positions of the two unit plates 13, so as to prevent the two unit plates 13 from moving in the direction in which the two limiting members 122 are arranged, which causes the seam of the two unit plates to change, and affects the waterproof performance of the wall plate 100. The unit plates 13 on the two sides are too close to the direction of the upright post 11, which can affect the installation of a cross 14 (detailed later) in the seam, and the filling and sealing effects of seam beautifying agent and sealant; the two side unit plates 13 move in the direction opposite to the upright post 11, so that the abutted seams of the two unit plates 13 are too large, the sealing effect is not good, and the problem of water leakage occurs.

In the present embodiment, one wall panel unit 10 can be defined as long as it includes the columns 11, the connection structures 12, and the two unit panels 13. In other embodiments, the wall panel 100 may include two or more wall panel units 10, for example, when the wall panel 100 includes two wall panel units 10, the wall panel 100 includes three wall panels 13, two studs 11 and at least two connecting structures 12, and any two adjacent wall panels, the stud between the two adjacent wall panels and the connecting structure connecting the stud and the two adjacent wall panels define one wall panel unit 10.

In this embodiment, the mounting hole 111 may be a common circular hole or a threaded hole, when the mounting hole 111 is a threaded hole, the connecting member 121 is inserted into the mounting hole 111 by screwing, and a portion of the connecting member 121 located in the mounting hole 111 may also be provided with a thread matching with the thread of the mounting hole 111, so as to prevent the connecting member 121 from moving axially in the mounting hole 111. Of course, the portion of the connector 121 located in the mounting hole 111 may not be threaded.

As shown in fig. 4 to 7, in the present embodiment, each unit panel 13 includes a veneer 132 and a keel frame 131, and the keel frame 131 is installed on the back surface of the veneer 132. In this embodiment, the keel frame 131 has a first side 1311 and a second side 1312 opposite to each other in the first direction a, the veneer 132 has a third side 1321 and a fourth side 1322 in the first direction a, the first side 1311 is flush with the third side 1321, the second side 1312 is located in an area covered by the back surface of the veneer 132, the size of the veneer 132 in the first direction a is larger than that of the keel frame 131 in the first direction a, and the second side 1312 is offset from the fourth side 1322. When the two unit panels 13 are mounted on the vertical posts 11 through the connecting structures 12, the fourth sides 1322 of the facing plates 132 of the two unit panels 13 are oppositely arranged, and the distance between the fourth sides 1322 of the two unit panels 13 is the seam of the wall panel unit 10.

The studs 11 are located on the back of the facing sheet 132 and between the second side surfaces 1312 of the keel frames 131 of the two unit panels 13. The upright post 11 is located behind the veneer 132, so that the upright post 11 can be prevented from influencing the beauty of the veneer 132 of the unit plate 13 on the premise of ensuring the connection performance.

The keel frame 131 also has fifth and sixth sides 1313, 1314 oppositely disposed in the second direction B, the veneer 132 also has seventh and eighth sides 1323, 1324 oppositely disposed in the second direction B, the fifth and seventh sides 1313, 1323 are aligned, the size of the veneer 132 in the second direction B is greater than the size of the keel frame 131 in the second direction B, and the sixth side 1314 is offset from the eighth side 1324.

The veneer 132 of the unit panel 13 may be one or more, and in this embodiment, the veneer 132 is provided in plurality, and the plurality of veneers 132 are arranged side by side along the second direction B.

Wherein the first direction a and the second direction B are perpendicular. When the wall panel 100 is installed on the base plate of the bathroom, the first direction a is a horizontal direction, and the second direction B is a vertical direction.

In other embodiments, the cell plate 13 may have other configurations, such as first side 1311 and third side 1321 being flush, second side 1312 and fourth side 1322 being flush, and/or fifth side 1313 and seventh side 1323 being aligned, and sixth side 1314 being aligned with eighth side 1324.

In this embodiment, the keel frame 131 of the unit board 13 has a hook 1315, and the unit board 13 is hung on the extension part by the hook 1315.

In this embodiment, the surface of the extension portion is provided with an external thread, the limiting member 122 is screwed with the extension portion corresponding thereto, and after the screwing is completed, the limiting member 122 is fixedly connected with the extension portion without additionally providing a fixing structure. Moreover, the distance between the two limiting members 122 is adjusted by adjusting the bolt connection length of the limiting members 122 and the extension part, so that the size of the abutted seam between the two unit plates 13 is adjusted, and the unit plates 13 with different sizes can be adapted.

As shown in fig. 8, in the present embodiment, the position-limiting member 122 includes a circular truncated cone 1222, the circular truncated cone 1222 is provided with a first threaded hole 1221 for screwing the extending portion, and the first threaded hole 1221 penetrates through two axial ends of the circular truncated cone 1222; one end surface of the circular table segment 1222 is tightly abutted against the side surface of the hook portion 1315. The small end of the truncated cone 1222 abuts against the side of the hook 1315, and the large end of the truncated cone 1222 is away from the hook 1315, so that the unit plate 13 can be better limited from moving relative to the column 11, the fastening effect is better, and the limiting member 122 can be conveniently mounted on the extending portion. In this embodiment, the small end surface of the truncated cone 1222 abuts against the second side surface 1312 of the keel frame 131. It should be noted that the large end and the small end of the truncated cone 1222 are respectively located at two axial ends of the truncated cone 1222, and the diameter of the large end is greater than that of the small end.

The stopper 122 further includes an extending section 1223, the extending section 1223 is connected to an end surface of the circular truncated cone 1222 abutted against the hook 1315, that is, the extending section 1223 is connected to a small end surface of the circular truncated cone 1222. The first threaded hole 1221 penetrates the truncated cone 1222 and the extension 1223 in sequence. When the stopper 122 is screwed to the extension portion, the stopper 122 is sleeved on the outer side of the extension portion, and the extension portion 1223 of the stopper 122 is located between the frustum portion 1222 and the unit plate 13. Due to the arrangement of the extension sections 1223, the hook portions 1315 on the keel frame 131 of the unit plates 13 can be at least partially hooked on the extension sections 1223, so that the unit plates 13 are more tightly matched with the limiting piece 122, which is beneficial to the stable connection of the unit plates 13, and the unit plates 13 can also move along with the movement of the limiting piece 122, thereby facilitating the adjustment of the splicing seam between the two unit plates 13. In this embodiment, the hook 1315 is entirely hooked to the extension.

A second threaded hole 1224 is formed in the peripheral wall of the limiting member 122; the connecting structure 12 further includes a locking member 123, wherein the locking member 123 is screwed with the second threaded hole 1224 and abuts against the peripheral wall of the extending portion to limit the limiting member 122 from rotating circumferentially relative to the extending portion. The second threaded hole 1224 is provided in the peripheral wall of the circular truncated cone 1222 and penetrates through one side of the peripheral wall of the circular truncated cone 1222. In the present embodiment, the locking member 123 is a bolt, a screw, or the like. The axis of the second threaded hole 1224 is perpendicular to the axis of the limiting member 122, and when the locking member 123 is screwed in the second threaded hole 1224, one end of the locking member 123 located in the second threaded hole 1224 abuts against the peripheral wall of the extending portion to prevent the limiting member 122 from rotating circumferentially relative to the extending portion, and the arrangement of the locking member 123 can prevent the limiting member 122 from loosening the abutted seam between the unit plates 13 to increase due to vibration and the like, so that the waterproof performance is affected.

In order to improve the structural stability of the wall panel 100, in the present embodiment, the columns 11 are provided with a plurality of mounting holes 111 at intervals along the length direction, the unit panel 13 includes a plurality of connecting structures 12, and the connecting structures 12 are arranged in one-to-one correspondence with the mounting holes 111. Each of the wall panel units 10 includes a plurality of connection structures 12 arranged at intervals in a length direction, so that the structure of the wall panel unit 10 is more stable, and the waterproof performance of the wall panel unit 10 is better.

As shown in fig. 9-11, the wall panel 100 further includes at least one cross 14, the cross 14 has four branches 141, two adjacent branches 141 are vertically arranged, the cross 14 is located between two unit panels 13, and each branch 141 is located between two veneer panels 132, the cross 14 is configured to control the seam between two adjacent unit panels 13 within a required range. The cross 14 may be made of an elastic material, when the cross 14 is squeezed between the two unit plates 13, the elastic force of the cross 14 has a tendency of pushing the unit plates 13 away from each other, meanwhile, the cross 14 can also prevent the two unit plates 13 from moving toward each other, the two limit pieces 122 prevent the two unit plates 13 from moving toward each other, and the cross 14 and the two limit pieces 122 jointly keep the seam between the two unit plates 13 within a required range, so as to facilitate filling of the seam beautifying agent, the waterproof glue and the like in the seam.

The present application also provides a bathroom comprising a base plate and the wall plate 100 provided according to the first aspect, wherein the lower end of the wall plate 100 is connected to the base plate. Wallboard 100 is connected through connection structure 12 is firm, and when two locating parts 122 were fixed in the extension that corresponds, two locating parts 122 were with the rigidity of two cell boards 13, avoided two cell boards 13 to move in the direction that two locating parts 122 were arranged, and caused the piece seam of the board of two units to change, influenced wallboard 100's waterproof performance to make the waterproof performance of bathroom better.

The chassis includes bottom plate and anti-bank, and anti-bank is installed in the bottom plate, and anti-bank sets up along the edge of bottom plate, and wallboard 100 is located the inboard of anti-bank and with install in the bottom plate. In this embodiment, the difference between the sixth side 1314 of the keel frame 131 of the unit panel 13 and the eighth side 1324 of the veneer 132 may be designed to be consistent with the height of the reversed sill, and when the wall panel 100 is installed on the chassis, the sixth side 1314 of the keel frame 131 abuts against the upper surface of the reversed sill, and the eighth side 1324 of the veneer 132 abuts against the upper surface of the bottom plate. The anti-bank can improve the waterproof performance of bathroom.

When the bathroom is assembled, the base plate is leveled, the upright post 11 is installed on the base plate, a certain installation accuracy is ensured, the connecting piece 121 is arranged in the installation hole 111 of the upright post 11 in a penetrating manner, two extending parts of the connecting piece 121 are positioned outside the installation hole 111, the limiting parts 122 are respectively screwed on the corresponding extending parts, the unit plates 13 on two sides of the upright post 11 are sequentially installed, the small end face of the limiting part 122 on one side of the upright post 11 and the side face of the upright post 11 are adjusted to a designed preset distance, and then the locking part 123 is further screwed in the second threaded hole 1224, so that one end of the locking part 123 abuts against the peripheral wall of the extending part. The installer uses the tile suction cups to install the wall panel 100, and hangs the keel frames 131 corresponding to the unit panels 13 on both sides of the vertical column 11 on the extension portion through the hook portions 1315, the sixth side 1314 of the keel frame 131 of the unit panel 13 is supported on the reverse ridge, and the eighth side 1324 of the veneer 132 is supported on the bottom plate.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A wallboard, comprising:

the wall plate unit comprises a vertical column, a connecting structure and two unit plates, and the two unit plates are arranged on two opposite sides of the vertical column through the connecting structure;

the connecting structure comprises a connecting piece and two limiting pieces, mounting holes penetrating through two opposite sides of the stand column are formed in the stand column, the connecting piece comprises two extending parts, the connecting piece penetrates through the mounting holes, and the two extending parts are located outside the mounting holes;

each unit plate is correspondingly hung on one extension part, each extension part is correspondingly provided with a limiting part, and the limiting parts are used for limiting the unit plates to move towards the direction close to or far away from the upright post.

2. The wall panel of claim 1, wherein the retainer is threadably engaged with the extension corresponding thereto.

3. The wall plate according to claim 2, wherein the limiting member comprises a circular truncated cone section, the circular truncated cone section is provided with a first threaded hole for screwing the extending portion, and the first threaded hole penetrates through two axial ends of the circular truncated cone section;

the keel frame of the unit plate is provided with a hook part, the unit plate is hung on the extension part through the hook part, and one end face of the circular table section is tightly propped against the side face of the hook part.

4. The wall panel according to claim 3, wherein the small end of the truncated cone section abuts against the side surface of the hook section, and the large end of the truncated cone section is far away from the hook section.

5. The wall plate according to claim 3, wherein the limiting member further comprises an extending section connected to an end surface of the circular platform section abutting against the hook portion;

the first threaded hole penetrates through the circular platform section and the extension section in sequence.

6. The wall panel according to claim 3, wherein the columns are provided with a plurality of mounting holes at intervals along the length direction, and the wall panel unit comprises a plurality of connecting structures, and the connecting structures are arranged in one-to-one correspondence with the mounting holes.

7. The wall plate according to claim 2, wherein the retaining member has a second threaded hole in a peripheral wall thereof;

the connecting structure further comprises a locking piece, and the locking piece is in threaded connection with the second threaded hole and abuts against the peripheral wall of the extending portion to limit the limiting piece to rotate circumferentially relative to the extending portion.

8. The wall panel of claim 1, wherein the unit panels comprise a veneer panel and a keel frame connected to a back side of the veneer panel, the stud being located on the back side of the veneer panel and between the keel frames of two of the unit panels.

9. The wall panel of claim 1, wherein each unit panel comprises a plurality of facing panels arranged vertically;

the wallboard further comprises at least one cross, the cross is provided with four branch parts, every two adjacent branch parts are vertically arranged, the cross is located between the two unit boards, and each branch part is located between the two veneer boards.

10. A sanitary ware, comprising:

a chassis; and

the wall panel of any of claims 1-9, wherein the lower end of the wall panel is connected to a chassis;

the chassis comprises a bottom plate and a reverse ridge, the reverse ridge is installed on the bottom plate, the reverse ridge is arranged along the edge of the bottom plate, and the wallboard is located on the inner side of the reverse ridge and installed on the bottom plate.

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