CN211169430U

CN211169430U - Concave elevator ceiling

Info

Publication number: CN211169430U
Application number: CN201921960334.8U
Authority: CN
Inventors: 王培森; 陆燕
Original assignee: Hangzhou Xo Lift Co Ltd
Current assignee: Hangzhou Xo Lift Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-08-04
Anticipated expiration: 2029-11-13

Abstract

The application provides concave type elevator furred ceiling of box structure, the box diapire is equipped with light-transmitting opening, and the box diapire includes: the two side frame cross bars are formed by extending the bottom edges of the side walls of the two box bodies towards the inner sides of the box bodies, and inner side vertical walls are formed on the inner sides of the side frame cross bars; the two-side frame longitudinal strips are formed by extending the bottom edges of the side walls of the two boxes towards the inner sides of the boxes and are spliced with the two-side frame transverse strips to form a side frame of the bottom wall of the box; the side wing mounting strips extend upwards from the frame longitudinal strips on the corresponding sides towards the interior of the box body in an inclined mode, and each side wing mounting strip is provided with a side wing light source for projecting light towards the interior of the elevator car; the transverse side of the two middle mounting bars is connected with the lateral wing mounting bar, and the other side of the two middle mounting bars forms a supporting bar; the vertical two ends of the frame longitudinal bar, the lateral wing mounting bar and the middle mounting bar are all propped against the inner side vertical wall of the corresponding side to seal the bottom of the box body. The application provides a concave type elevator furred ceiling has avoided furred ceiling side light leak effectively, has guaranteed the smoothness degree of furred ceiling side, and decorative effect is better.

Description

Concave elevator ceiling

Technical Field

The application relates to the technical field of elevators, in particular to a concave elevator ceiling.

Background

An elevator ceiling is a decorative structure installed on top of an elevator car, and an elevator ceiling also generally has a function of improving lighting in the car. The concave elevator suspended ceiling is a suspended ceiling with a relatively high light emitting area in the middle and a relatively low light emitting area at the edge of the bottom surface of the suspended ceiling.

One of the processing methods of the concave elevator suspended ceiling is formed by splicing sheet metal parts, a plurality of sheet metal parts are sequentially spliced along the same direction to form at least three luminous areas, the luminous area of the middle part is higher, the luminous areas of at least two sides are lower, the side surfaces of the front side and the rear side of the elevator suspended ceiling are formed by splicing the side surfaces of at least three sheet metal parts, and splicing seams exist on the side surfaces. When dimensional design is unreasonable, the easy light leak of furred ceiling side piece department, especially when the clearance between the lateral wall of furred ceiling and the car leg is great, the light leak will seriously influence passenger's in the car visual perception.

One of them kind of project organization is drawn forth the shielding strip from the other both sides wall of furred ceiling and shelters from these piece joints, considers the sheet metal component processing degree of difficulty, and the shielding strip is two pieces of piecing together, and the furred ceiling side still exists the piece joint. In addition, shelter from the strip and need lean on fastener and furred ceiling inner structure to be connected, the fastener directly exposes outside, and decorative effect is ideal inadequately.

SUMMERY OF THE UTILITY MODEL

The application provides a concave type elevator furred ceiling can enough avoid furred ceiling side light leak effectively, has guaranteed the smoothness and smoothness of furred ceiling side again, and decorative effect is better.

The concave elevator suspended ceiling provided by the application is a box body structure arranged on the top of an elevator car, the bottom wall of the box body is provided with a light-transmitting opening, the box body is provided with a transverse direction and a longitudinal direction which are relatively vertical in the horizontal direction,

the box diapire includes:

the two side frame cross bars are formed by extending the bottom edges of the two box side walls which are longitudinally arranged oppositely towards the inner side of the box body, and the inner side edges of the side frame cross bars extend upwards and form inner side vertical walls;

the two-side frame longitudinal strips are formed by extending the bottom edges of the two box side walls which are transversely arranged oppositely towards the inner side of the box body, are positioned between the two-side frame transverse strips and are spliced with the two-side frame transverse strips to form a side frame of the bottom wall of the box body;

the side wing mounting strips extend upwards from the frame longitudinal strips on the corresponding sides towards the interior of the box body in an inclined mode, and each side wing mounting strip is provided with a side wing light source for projecting light towards the interior of the elevator car;

the transverse side of each middle mounting bar is connected with the corresponding lateral wing mounting bar, the edge of the other side of each middle mounting bar extends upwards to form a supporting bar, and a gap between the two supporting bars is the light-transmitting opening;

the vertical two ends of the frame longitudinal bar, the lateral wing mounting bar and the middle mounting bar are all propped against the inner side vertical wall of the corresponding side to seal the bottom of the box body.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the concave elevator suspended ceiling further comprises a light-transmitting plate, and the light-transmitting plate is arranged on the top of the supporting strip to seal the light-transmitting opening.

Optionally, two box lateral walls that vertical mutual disposition is horizontal lateral wall, and horizontal lateral wall, frame horizontal bar and the inboard vertical wall with one side are bent by a sheet metal component an organic whole and are formed, the top of horizontal lateral wall is formed with the installation horizontal bar along bending towards the box in, first sheet metal component is fixed with the box roof through the fastener that runs through the installation horizontal bar.

Optionally, two box lateral walls that transversely arrange relatively are for indulging the lateral wall, and indulge lateral wall, frame with one side and indulge strip and flank mounting bar and are formed by the integrative bending of second sheet metal component, the top of indulging the lateral wall is formed with the installation along bending in the box and indulges the strip, the second sheet metal component is fixed with the box roof through running through the fastener that the strip was indulged in the installation.

Optionally, the vertical both ends of middle mounting bar turn over upward and form first end hem, and middle mounting bar, support bar and first end hem with one side are bent by the third sheet metal component is integrative to be formed, the third sheet metal component is fixed with the inboard upright wall of corresponding side through the fastener that runs through first end hem.

Optionally, the top of support bar bends in proper order and forms first spacing portion and the spacing portion of second, the horizontal both ends of light-passing board are taken and are put in first spacing portion, the horizontal both sides edge of light-passing board offsets spacingly with the spacing portion of second of corresponding side.

Optionally, the horizontal middle part of the inside vertical wall is provided with a notch for the vertical two ends of the light-transmitting plate to pass through, and the vertical two ends of the light-transmitting plate are arranged at the bottom of the notch.

Optionally, a limiting member abutting against and limiting two longitudinal ends of the light-transmitting plate is fixed on the inner vertical wall.

Optionally, concave type elevator furred ceiling is still including setting up the sealing member in the internal four corners of box, and each sealing member is bent including an organic whole and is formed:

the first bottom wall is fixed on the top surface of the frame longitudinal strip through bonding or welding;

the second bottom wall is fixed on the top surface of the side wing mounting strip through bonding or welding;

the first side wall extends upwards from the side edge of the first bottom wall and is attached and fixed with the inner side vertical wall through a fastener;

and the second side wall extends upwards from the side edge of the second bottom wall and is attached and fixed to the inner vertical wall through a fastener.

Optionally, the horizontal inboard of flank mounting bar is equipped with first turn-up, one side that middle mounting bar is close to the flank mounting bar is equipped with the second turn-up, is equipped with the fourth sheet metal component between with the second sheet metal component and the third sheet metal component of one side, and the fourth sheet metal component includes integrated into one piece:

the height of the transitional mounting strip is flush with the middle mounting strip and the frame longitudinal strip;

the second end part folded edge is formed by upwards folding the two longitudinal ends of the transition mounting strip, and the fourth sheet metal part is attached and fixed to the inner side vertical wall of the corresponding side through the second end part folded edge;

the third curled edge is formed by turning one transverse side of the transitional mounting strip upwards, and the third curled edge is attached and fixed with the first curled edge;

and the fourth turned edge is formed by turning the other transverse side of the transitional mounting strip upwards, and the fourth turned edge is attached and fixed with the second turned edge.

The application provides a concave type elevator furred ceiling has avoided furred ceiling side light leak effectively, has guaranteed the smoothness degree of furred ceiling side, and decorative effect is better.

Drawings

FIG. 1 is a schematic diagram of a concave elevator ceiling from a perspective in one embodiment;

fig. 2 is a schematic structural view of the concave elevator ceiling of fig. 1 from another perspective;

FIG. 3 is an exploded view of the bottom of the concave elevator ceiling of FIG. 1;

FIG. 4 is an exploded view of the concave elevator ceiling of FIG. 1;

fig. 5 is a schematic view of the internal structure of the concave elevator ceiling of fig. 1 from a perspective;

FIG. 6 is an enlarged view of area A of FIG. 5;

fig. 7 is a schematic view of the internal structure of the concave elevator ceiling of fig. 1 from another perspective;

fig. 8 is a schematic view of the internal structure of the concave elevator ceiling of fig. 1 from another perspective.

The reference numerals in the figures are illustrated as follows:

1. a first sheet metal part; 11. a frame cross bar; 12. an inner vertical wall; 13. a lateral side wall; 14. installing a transverse strip; 15. a second avoidance port; 16. a transverse mounting hole; 17. a notch; 2. a second sheet metal part; 21. a frame longitudinal bar; 22. a lateral wing mounting bar; 23. a side wing light source; 24. a longitudinal side wall; 25. installing longitudinal strips; 26. avoiding the mouth; 27. a slot; 28. a longitudinal mounting hole; 29. a first crimp; 3. a third sheet metal part; 31. mounting a bar in the middle; 32. a supporting strip; 33. a first limiting part; 34. a second limiting part; 35. folding the first end; 36. second curling; 4. a light-transmitting plate; 51. a top plate; 52. a hanging seat; 6. a limiting member; 61. a longitudinal limiting wall; 62. a transverse limiting wall; 7. a seal member; 71. a first bottom wall; 72. a second bottom wall; 73. a first side wall; 74. a second side wall; 8. a fourth sheet metal part; 81. a transitional mounting bar; 82. folding the second end; 83. third curling; 84. and fourthly, curling.

Detailed Description

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 only a part of the embodiments of the present application, and not all of the embodiments. 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 will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

In one embodiment, as shown in fig. 1, 2 and 3, the concave suspended ceiling is a box structure installed on the top of the elevator car, the bottom wall of the box is provided with a light-transmitting opening, the box has a horizontal direction and a vertical direction which are vertical to each other, and the bottom wall of the box comprises two frame transverse strips 11, two frame longitudinal strips 21, two side wing mounting strips 22 and two middle mounting strips 31. The two frame cross bars 11 are formed by extending the bottom edges of two box side walls which are longitudinally arranged oppositely towards the inner side of the box, and the inner side edge of each frame cross bar 11 extends upwards and is formed with an inner side vertical wall 12.

The two side frame longitudinal strips 21 are formed by extending the bottom edges of the two box side walls which are transversely arranged oppositely towards the inner side of the box body, and the two side frame longitudinal strips 21 are positioned between the two side frame transverse strips 11 and spliced with the two side frame transverse strips 11 to form a side frame of the bottom wall of the box body. The two side wing mounting bars 22 extend upwards from the frame longitudinal bars on the corresponding sides towards the interior of the box body in an inclined mode, and side wing light sources 23 which project light rays towards the interior of the elevator car are mounted on the side wing mounting bars 22.

One side of each middle mounting bar 31 in the transverse direction is connected with the corresponding side wing mounting bar 22, the edge of the other side extends upwards to form a supporting bar 32, and the gap between the two supporting bars 32 is a light transmission opening. The longitudinal ends of the frame longitudinal strips 21, the lateral wing mounting strips 22 and the middle mounting strip 31 are all abutted against the inner side vertical wall of the corresponding side to seal the bottom of the box body.

Frame vertical bar 21, flank mounting bar 22 and middle mounting bar 31 etc. splice in proper order along horizontal (being the X direction in fig. 1) and form the box diapire, can avoid the light leak of piece department through overlapping structure such as set up hem, turn-up in the both sides of each mounting bar during the concatenation, and these overlapping structures are located inside the box, need not consider the problem that influences the furred ceiling outward appearance, and the light leak problem of consequently furred ceiling bottom is solved easily.

The key problem to be solved by the suspended ceiling formed by transverse splicing is light leakage at two sides in the longitudinal direction (namely the Y direction in figure 1). What this embodiment adopted is that the way of setting up the frame bottom the furred ceiling, and is concrete, and the frame horizontal bar 11 and the frame vertical bar 21 in the frame all have corresponding box lateral wall an organic whole to bend and form, only need with box lateral wall and box top fixed can, need not consider the inside piece problem between same box lateral wall and the box diapire.

The frame part of the bottom wall of the box body of the embodiment is relatively low, and the frame longitudinal strips 21, the side wing mounting strips 22, the middle mounting strips 31 and the like are longitudinally abutted against the frame for sealing, so that a plurality of depressed areas with low centers and high peripheries are formed, wherein two depressed areas close to the edges are used as lamp grooves of the side wing light source 23, and one depressed area in the middle is used as a light transmission opening of the light source in the box body.

The concave structure with high middle and low two sides can be realized by setting the height of the supporting bar 32 and the inclination angle of the side wing mounting bar 22. In addition, the light projection direction of each side wing light source 23 is towards the lower part of the light-transmitting opening, so that a light-gathering type light projection effect matched with the concave structure is generated, and good visual perception is brought to passengers in the car.

The middle mounting bar 31 can be directly connected with the side wing mounting bar 22, and other connecting structures can be arranged between the middle mounting bar 31 and the side wing mounting bar 22 to increase the stereoscopic impression of the suspended ceiling.

In order to protect the light-emitting elements and circuits in the box body and improve the safety, in one embodiment, as shown in fig. 3, the concave elevator ceiling further comprises a light-transmitting plate 4, the light-transmitting plate 4 is arranged on the top of the supporting bar 32 in a lapping mode to seal the light-transmitting opening, and maintenance personnel can conveniently overhaul the internal structure of the ceiling. Further, in one embodiment, a light diffusion layer may be included in the light-transmissive plate to increase the uniformity of the light at the light-transmissive opening.

In order to increase the connection strength of the frame cross bars, in an embodiment, as shown in fig. 3, two box side walls which are longitudinally and oppositely arranged are the cross side walls 13, the cross side wall 13, the frame cross bar 11 and the inner vertical wall 12 which are on the same side are formed by integrally bending the first sheet metal part 1, the top edge of the cross side wall is bent towards the inside of the box to form the installation cross bar 14, and the first sheet metal part 1 is fixed with the top wall of the box through a fastener which penetrates through the installation cross bar 14. Specifically, can set up a mounting hole along transversely on the installation horizontal bar 14, form a plurality of fixed points through the fastener that runs through each mounting hole on first sheet metal component 1 to prevent that first sheet metal component 1 from warping, guarantee the seal at first sheet metal component 1 top.

In order to increase the connection strength of the vertical strips of the side frames, in an embodiment, as shown in fig. 3 and 8, the two side walls of the box body which are transversely arranged oppositely are vertical side walls 24, the vertical side wall 24, the vertical strip 21 of the side frame and the side wing mounting strip 22 which are on the same side are formed by integrally bending the second sheet metal part 2, the top edge of the vertical side wall 24 is bent towards the inside of the box body to form a mounting vertical strip 25, and the second sheet metal part is fixed with the top wall of the box body through a fastener which penetrates through the mounting vertical strip.

Specifically, a row of mounting holes can be formed in the longitudinal mounting strip 25, and the second sheet metal part 2 is fixed to the top wall of the box body through fasteners penetrating through the mounting holes. In one embodiment, as shown in fig. 3, the bottom surface of the top wall of the box body is a flat surface, and the mounting cross bar 14 and the mounting longitudinal bar 25 are combined into a flat frame which is attached to the bottom edge of the top wall of the box body. Correspondingly, the longitudinal dimension of the mounting longitudinal strip 25 is smaller than the longitudinal dimension of the longitudinal side wall 24, so that first avoiding openings 26 corresponding to the width of the mounting transverse strip 14 are formed at the two longitudinal ends of the second sheet metal part 2.

Further, in order to prevent the ceiling from being deformed, in one embodiment, as shown in fig. 3, the inner side vertical wall 12 is provided at both lateral ends thereof with second avoidance openings 15 for avoiding the longitudinal side wall 24, and the longitudinal side wall 24 is provided at both ends thereof with insertion grooves 27 into which the inner side vertical wall 12 is inserted. The tops of the first sheet metal part 1 and the second sheet metal part 2 are fixed with the top wall of the box body through corresponding fasteners, so that the relative positions are kept. The bottom of first sheet metal component 1 and second sheet metal component 2 is spacing each other through inserted sheet slot structure in the four corners department that is close to the furred ceiling, further ensures that relative position is fixed.

The light leak problem of sheltering from the vertical both sides of furred ceiling through first sheet metal component 1 has converted the inboard piece problem of frame, in order to further prevent the inboard light leak of frame, in an embodiment, as shown in fig. 3, the vertical both ends of middle mounting bar 31 are turned over upward and are rolled over and form first end hem 35, middle mounting bar 31 with one side, support bar 32 and first end hem 35 are bent by third sheet metal component 3 an organic whole and are formed, third sheet metal component 3 stands the wall through the fastener that runs through the first end hem and the inboard of corresponding side fixedly. In the present embodiment, the first end folded edge 35 and the inner standing wall 12 are overlapped in the height direction, thereby effectively preventing light leakage inside the bezel. The third sheet metal part 3 is directly or indirectly connected with the second sheet metal part 2 in the transverse direction and is also directly connected with the first sheet metal part 1 in the longitudinal direction, so that the third sheet metal part is more stable.

Specifically, in an embodiment, as shown in fig. 2 and 4, the top wall of the box body is formed by transversely splicing three top plates 51, and hanging seats 52 are installed at four corners of the top wall of the box body. The two ends of the horizontal mounting bar 14 are provided with horizontal mounting holes 16 for mounting the hanging seats 52, and the two ends of the vertical mounting bar 25 are provided with vertical mounting holes 28 for mounting the hanging seats 52. The bottom edge of the same hanger bracket 52 is fixed to both the mounting cross bar 14 and the mounting longitudinal bar 25. A light source (not shown) corresponding to the light transmission opening is installed on the bottom surface of the top plate 51 at the middle portion.

In order to prevent the light-transmitting plate 4 from laterally shaking, in an embodiment, as shown in fig. 5 and 6, the top of the supporting bar 32 is sequentially bent to form a first limiting portion 33 and a second limiting portion 34, the two lateral ends of the light-transmitting plate 4 are overlapped on the first limiting portion 33, and the two lateral edges of the light-transmitting plate 4 are abutted against the second limiting portions 34 of the corresponding sides for limiting.

In order to prevent light leakage from both longitudinal sides of the light-transmitting plate 4, as shown in fig. 3 and 7, a notch 17 for allowing both longitudinal ends of the light-transmitting plate 4 to pass through is formed in the transverse middle portion of the inner vertical wall 12, and both longitudinal ends of the light-transmitting plate 4 are placed at the bottom of the notch 17. The longitudinal extension length of the light-transmitting plate 4 exceeds the inner vertical wall 12, so that the side, close to the light-transmitting opening, of the inner vertical wall 12 is prevented from generating abutted seams and light leakage.

In order to prevent the light-transmitting plate 4 from longitudinally shaking, in an embodiment, as shown in fig. 3, a limiting member 6 is fixed on the inner vertical wall 12 and abuts against and limits two longitudinal ends of the light-transmitting plate 4. Specifically, in an embodiment, the transparent plate 4 is rectangular, the number of the limiting members 6 is four, and the limiting members 6 are respectively disposed at four corners of the transparent plate 4, each limiting member 6 includes a longitudinal limiting wall 61 abutting against one longitudinal end of the transparent plate 4 and a transverse limiting wall 62 abutting against one transverse end of the transparent plate 4, and the transverse limiting wall 62 is flush with the second limiting portion 34.

In order to prevent light leakage from the seams between the vertical side frame strips 21 and the vertical side wing strips 22 and the vertical inner wall 12, in an embodiment, as shown in fig. 3, the concave suspended ceiling of the elevator further includes sealing members 7 disposed at four corners inside the box body, and each sealing member 7 includes a first bottom wall 71, a second bottom wall 72, a first side wall 73, and a second side wall 74 which are integrally formed by bending. Wherein, the first bottom wall 71 is fixed on the top surface of the frame longitudinal bar 21 by bonding or welding; the second bottom wall 72 is fixed to the top surface of the wing mounting bar 22 by bonding or welding; a first side wall 73 extending upward from a side edge of the first bottom wall 71 and fixed to the inner vertical wall by a fastener; the second side wall 74 extends upward from a side edge of the second bottom wall and is secured against the inner side standing wall by a fastener. The first bottom wall 71 and the first side wall 73 are integrally formed, so that no light leakage problem exists at the bending position, and the second bottom wall 72 and the second side wall 74 are integrally formed, so that no light leakage problem exists at the bending position.

In one embodiment, as shown in fig. 1 and 3, a first curled edge 29 is provided on the lateral inner side of the wing mounting strip 22, a second curled edge 36 is provided on one side of the middle mounting strip 31 close to the wing mounting strip, a fourth sheet metal part 8 is provided between the second sheet metal part 2 and the third sheet metal part 3 on the same side, and the fourth sheet metal part 8 includes an integrally formed transition mounting strip 81, a second end folded edge 82, a third curled edge 83 and a fourth curled edge 84.

The height of the transitional mounting strip 81 is flush with the height of the middle mounting strip and the vertical strip of the frame; the second end folding edges 82 are formed by upwards folding the two longitudinal ends of the transitional mounting strip, and the fourth sheet metal part is attached and fixed to the inner side vertical wall of the corresponding side through the second end folding edges; the third curled edge 83 is formed by folding one transverse side of the transitional mounting strip upwards, and the third curled edge is jointed and fixed with the first curled edge; the fourth bead 84 is formed by folding the other lateral side of the transitional mounting strip upward, and the fourth bead is fixed to the second bead in an abutting manner.

The fourth sheet metal part 8 can be one or a plurality of side-by-side, between two adjacent fourth sheet metal parts 8, or between the fourth sheet metal part 8 and the third sheet metal part 3, or between the fourth sheet metal part 8 and the second sheet metal part 2, a narrow and deep groove can be formed through the partially overlapped curling structures, so that the three-dimensional visual effect is achieved, and the processing requirements can be met.

In one embodiment, during assembly, the top parts of the first sheet metal part 1 and the second sheet metal part 2 are all subjected to rivet pulling; two ends of the second sheet metal part 2, the third sheet metal part 3 and the fourth sheet metal part 8 are connected with the first sheet metal part 1 through screw nuts, so that the influence of the bulge of the rivet nut on the non-flush between each end surface and the connecting surface of the first sheet metal part 1 is avoided; clamping the second sheet metal part 2 in the middle of the first sheet metal part 1 in a front-back manner, and fixing a screw on a rivet nut on a flanging of the second sheet metal part 2 through a through hole in the middle of the fourth sheet metal part 8 to fasten the screw; the sealing elements 7 are then bonded to the respective ends of the second sheet metal part 2. Arranging the lamps on the top plate 51 in the middle of the frame; all the wires are laid, and the wires are led out from the round holes at the four corners of the top plate 51. Then screws are used for penetrating through the holes at four corners of the hanging seat 52 and the top plate 51 and are fixed on the rivet nuts at four corners of the first sheet metal part 1 and the second sheet metal part 2.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The concave elevator suspended ceiling is a box body structure arranged on the top of an elevator car, and the bottom wall of the box body is provided with a light-transmitting opening, and is characterized in that the box body is provided with a transverse direction and a longitudinal direction which are relatively vertical in the horizontal direction,

the box diapire includes:

2. The concave elevator ceiling of claim 1, further comprising light-transmitting panels that overlap the top of the support bars to close the light-transmitting openings.

3. The concave elevator ceiling according to claim 1, wherein the two box side walls arranged longitudinally and oppositely are transverse side walls, the frame transverse bar and the inner vertical wall on the same side are formed by integrally bending a first sheet metal part, the top edge of each transverse side wall is bent towards the inside of the box to form an installation transverse bar, and the first sheet metal part is fixed to the top wall of the box through a fastener penetrating through the installation transverse bar.

4. The concave elevator ceiling according to claim 3, wherein the two laterally oppositely arranged box side walls are longitudinal side walls, the frame longitudinal strips and the side wing mounting strips on the same side are formed by integrally bending second sheet metal parts, the top edges of the longitudinal side walls are bent towards the inside of the box body to form mounting longitudinal strips, and the second sheet metal parts are fixed to the top wall of the box body through fasteners penetrating through the mounting longitudinal strips.

5. The concave elevator ceiling according to claim 4, wherein the middle mounting strip is folded upward at its longitudinal ends to form first end flaps, the middle mounting strip, the support strip and the first end flaps on the same side are integrally formed by folding a third sheet metal part, and the third sheet metal part is fixed to the inner vertical wall of the corresponding side by a fastener penetrating through the first end flaps.

6. The concave elevator suspended ceiling according to claim 2, wherein the top of the supporting bar is bent in sequence to form a first limiting part and a second limiting part, the two transverse ends of the light-transmitting plate are arranged on the first limiting part, and the two transverse side edges of the light-transmitting plate are abutted against the second limiting parts on the corresponding sides for limiting.

7. The concave elevator ceiling according to claim 2, wherein the lateral middle portion of the inner vertical wall is provided with a slot through which the longitudinal ends of the light-transmitting plate pass, and the longitudinal ends of the light-transmitting plate are lapped at the bottom of the slot.

8. The concave elevator ceiling as defined in claim 2, wherein the inner vertical wall is fixed with a limiting member which is abutted against and limited by two longitudinal ends of the light-transmitting plate.

9. The concave elevator ceiling of claim 1, further comprising sealing members disposed at four corners of the box, each sealing member comprising an integrally bent:

10. The concave elevator ceiling according to claim 5, wherein a first curled edge is disposed on the transverse inner side of the wing mounting bar, a second curled edge is disposed on one side, close to the wing mounting bar, of the middle mounting bar, a fourth sheet metal part is disposed between the second sheet metal part and the third sheet metal part on the same side, and the fourth sheet metal part comprises an integrally formed part: