Ventilation structure of elevator car

Abstract

The invention belongs to the field of elevators, and discloses an elevator car ventilation structure which comprises a car bottom assembly, a car wall assembly arranged at the upper end of the car bottom assembly and a car top assembly arranged at the upper end of the car wall assembly. The car bottom assembly comprises a surrounding frame and a car bottom plate arranged in the surrounding frame, an air inlet channel from bottom to top is formed between the surrounding frame and the car bottom plate, and the air inlet channel enables airflow to enter the upper end of the car bottom plate from the bottom of the car bottom plate through the air inlet channel and enter the elevator car. The car roof assembly comprises a car roof plate and a ventilation adjusting plate, a plurality of car roof ventilation holes are formed in the car roof plate, the ventilation adjusting plate is arranged on the car roof plate and covers the car roof ventilation holes, a plurality of adjusting ventilation holes corresponding to the car roof ventilation holes in position are formed in the ventilation adjusting plate, and the position of the ventilation adjusting plate on the car roof plate can be adjusted through the ventilation adjusting plate. And the overlapping area of the car roof ventilation hole and the adjusting ventilation hole is changed. Ventilation structures are arranged on the car wall assembly, the car top assembly and the car bottom assembly, and the ventilation effect is good.

Description

Technical Field

[0001] The invention relates to the field of elevators, and in particular to an elevator car ventilation structure. Background Art

[0002] As an enclosed space, the elevator car needs to pay attention to the internal air quality. The national standard requires that ventilation holes should be set at the top and bottom of the car, and there are clear requirements for the effective area of ​​the ventilation holes: the effective area of ​​the ventilation holes at the top and bottom of the car should not be less than 1% of the effective area of ​​the car. The gap around the car door can be included in the calculation of the ventilation hole area, but it should not be greater than 50% of the required effective area.

[0003] Traditional elevator cars are ventilated through the gaps between the car wall and the car bottom, and between the car wall and the car top. To increase the ventilation volume, the gaps must be increased. Large gaps are often visible to passengers, affecting the overall appearance. In addition, traditional elevators are also equipped with special ventilation equipment (blowers, fans, air conditioners, etc.) to enhance the ventilation effect of the elevator, which will increase the cost of the elevator. Summary of the invention

[0004] The object of the present invention is to provide an elevator car ventilation structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An elevator car ventilation structure comprises a car bottom assembly, a car wall assembly arranged at the upper end of the car bottom assembly and a car top assembly arranged at the upper end of the car wall assembly; the car bottom assembly comprises a surrounding frame and a car bottom plate arranged in the surrounding frame, an air inlet passage from bottom to top is formed between the surrounding frame and the car bottom plate, and the air inlet passage allows airflow to enter the upper end of the car bottom plate from the bottom of the car bottom plate through the air inlet passage and enter the interior of the elevator car; the car top assembly comprises a car top plate and a ventilation adjustment plate, a plurality of car top ventilation holes are arranged on the car top plate, the ventilation adjustment plate is arranged on the car top plate and covers the car top ventilation holes, a plurality of adjustment ventilation holes corresponding to the positions of the car top ventilation holes are arranged on the ventilation adjustment plate, and the ventilation adjustment plate can adjust its position on the car top plate to change the overlapping area of ​​the car top ventilation holes and the adjustment ventilation holes.

[0006] Furthermore, a rear flange of the car floor is arranged upward on the rear side of the car floor, and the enclosure frame includes an enclosure frame rear plate arranged opposite to the rear flange of the car floor, and an air inlet channel on the rear side of the car floor assembly is formed between the rear flange of the car floor and the enclosure frame rear plate; The left side of the car floor plate is provided with a left flange of the car floor plate upward, the enclosure frame includes a left plate of the enclosure frame arranged opposite to the left flange of the car floor plate, and an air inlet passage on the left side of the car floor assembly is formed between the left flange of the car floor plate and the left plate of the enclosure frame; A right flange of the car floor is arranged upward on the right side of the car floor, and the enclosure frame comprises a right plate of the enclosure frame arranged opposite to the right flange of the car floor, and an air inlet channel on the right side of the car floor assembly is formed between the right flange of the car floor and the right plate of the enclosure frame.

[0007] Furthermore, a rear baffle of the enclosure frame is provided at the upper end of the rear plate of the enclosure frame extending forward, and the rear baffle of the enclosure frame shields the air inlet channel at the rear side of the car bottom assembly; The upper end of the left plate of the enclosure frame is extended to the right to form a left retaining edge of the enclosure frame, and the left retaining edge of the enclosure frame blocks the air inlet channel on the left side of the car bottom assembly; The upper end of the right plate of the enclosure frame is extended to the left to be provided with a right retaining edge of the enclosure frame, and the right retaining edge of the enclosure frame blocks the air inlet channel on the right side of the car bottom assembly.

[0008] Furthermore, the car roof ventilation holes and the regulating ventilation holes are both long strip holes.

[0009] Furthermore, the ventilation adjustment plate is connected to the car top ventilation hole through an adjusting bolt, and the position of the ventilation adjustment plate on the car top plate can be adjusted when the adjusting bolt is loosened.

[0010] Furthermore, a plurality of car top ventilation holes and ventilation adjustment plates are arranged on at least one side of the front, back, left, and right sides of the car top plate.

[0011] Furthermore, a ceiling assembly is arranged at the lower end of the car top assembly, and the ceiling assembly is a hollow annular structure, which includes a rear frame, a front frame arranged opposite to the rear frame, and two lamp holder plates respectively connected between the rear frame and the front frame, and the two lamp holder plates are located on the left and right sides of the rear frame.

[0012] Furthermore, the lamp holder plate includes a horizontal section of the lamp holder plate and an inclined section of the lamp holder plate connected to the horizontal section of the lamp holder plate, the horizontal section of the lamp holder plate is close to the center side of the ceiling assembly, and the inclined section of the lamp holder plate is away from the center side of the ceiling assembly, a plurality of first lamp holder plate ventilation holes are arranged on the horizontal section of the lamp holder plate, a plurality of second lamp holder plate ventilation holes are arranged on the inclined section of the lamp holder plate, the second lamp holder plate ventilation holes face the adjacent car wall, the first lamp holder plate ventilation holes and the second lamp holder plate ventilation holes correspond to the lamps of the ceiling assembly and can transmit light into the car.

[0013] Furthermore, a guardrail assembly is arranged at the upper end of the car top assembly, a protective cover is arranged on the guardrail assembly, the protective cover covers the car top ventilation holes, and a filter hole is arranged on the protective cover.

[0014] Furthermore, the car wall assembly includes four car wall modules spliced ​​end to end, wherein one or more car wall modules are configured as a ventilated car wall module, the ventilated car wall module includes multiple car wall units spliced ​​in a horizontal direction, two adjacent car wall units of a ventilated car wall module are connected by a folding structure, the folding structure includes a first folding edge and a second folding edge connected by fasteners, a car wall vent is formed between the first folding edge and the second folding edge, and the first folding edge and / or the second folding edge covers the car wall vent.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The invention provides ventilation structures on the car wall assembly, the car top assembly and the car bottom assembly, so that the ventilation effect is good; 2) The present invention provides car top ventilation holes on the car top plate to increase the ventilation volume of the car top, and also provides a ventilation adjustment plate to adjust the ventilation effect of the car top assembly as needed; 3) The present invention provides a first lamp holder plate ventilation hole and a second lamp holder plate ventilation hole on the ceiling, and the first lamp holder plate ventilation hole and the second lamp holder plate ventilation hole can be used for ventilation and also can play a role of light transmission and decoration; 4) The present invention provides a protective cover with filter holes on the guardrail assembly, which can prevent dust and other debris from entering the car, and ensure the cleanliness and hygiene of the car while ventilating it; 5) The present invention arranges a surrounding frame on the outside of the car floor plate, and forms an air inlet channel between the surrounding frame and the car floor plate to achieve air inlet to the car floor; 6) The frame can improve the structural strength of the car bottom; 7) The frame can block the air inlet channel to ensure the beauty of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the car top assembly in the present invention.

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0020] Figure 5 It is a structural schematic diagram of the car top assembly in the present invention when the ventilation adjustment plate is removed.

[0021] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0022] Figure 7It is a schematic diagram of the longitudinal cross-sectional structure of the car top assembly in the present invention.

[0023] Figure 8 for Figure 7 Enlarged view of center C.

[0024] Fig. 9 It is a schematic diagram of the top view of the structure of the ceiling assembly in the present invention.

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the ceiling assembly in the present invention.

[0026] Fig.11 It is a schematic diagram of the structure of the guardrail assembly in the present invention.

[0027] Fig.12 It is a schematic diagram of the structure of the car wall assembly in the present invention.

[0028] Fig.13 It is a schematic diagram of the top view of the structure of the car wall assembly in the present invention.

[0029] Fig.14 for Fig.13 Enlarged view of point D in the middle.

[0030] Fig.15 It is a structural schematic diagram of the car bottom assembly in the present invention.

[0031] Fig.16 for Fig.15 Enlarged view of point E in the middle.

[0032] Fig.17 for Fig.15 Enlarged view of point F in the middle.

[0033] Fig.18 for Fig.15 Enlarged view of point G in the middle.

[0034] Fig.19 This is a schematic diagram of the top view of the structure of the car bottom assembly of the present invention when the floor is removed.

[0035] Fig. 20 for Fig.19 Middle HH section view.

[0036] Fig.21 for Fig. 20 Enlarged view of point J in the middle, the arrow in the figure indicates the direction of air inlet.

[0037] Fig. 22 for Fig. 20 Enlarged view of point K in the middle, the arrow in the figure indicates the direction of air inlet.

[0038] Fig.23 for Fig.19 Middle II sectional view.

[0039] Fig.24 for Fig.23 Enlarged view of point L in the middle, the arrow in the figure indicates the direction of air inlet.

[0040] Fig.25 It is a structural schematic diagram of the car floor plate in the present invention.

[0041] In the figure: Car floor assembly 1, car floor plate 100, car floor plate rear flange 1000, car floor plate left flange 1001, car floor plate right flange 1002, enclosure frame rear plate 101, enclosure frame rear retaining edge 1010, enclosure frame left plate 102, enclosure frame left retaining edge 1020, enclosure frame right plate 103, enclosure frame right retaining edge 1030, car floor plate reinforcement rib 104, floor 105; Car wall assembly 2, front car wall module 2a, left car wall module 2b, rear car wall module 2c, right car wall module 2d, car wall unit 200, first folded edge 201, second folded edge 202, car wall vent 203; Car top assembly 3, car top plate 300, car top ventilation hole 3000, ventilation adjustment plate 301, and adjustment ventilation hole 3010; Guardrail assembly 4, protective cover 400; Ceiling assembly 5, rear frame 500, front frame 501, lamp holder plate 502, lamp holder plate horizontal section 5020, lamp holder plate inclined section 5021, first lamp holder plate ventilation hole 5022, second lamp holder plate ventilation hole 5023, hanging plate 503. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-Figure 25 An elevator car ventilation structure includes a car bottom assembly 1, a car wall assembly 2 arranged at the upper end of the car bottom assembly 1, and a car top assembly 3 arranged at the upper end of the car wall assembly 2.

[0044] Continue reading Figure 2-Figure 11In one embodiment of the present invention, the car top assembly 3 includes a car top plate 300 and a ventilation adjustment plate 301, a plurality of car top ventilation holes 3000 are arranged on the car top plate 300, the ventilation adjustment plate 301 is arranged at the upper end of the car top plate 300 and covers the car top ventilation holes 3000, a plurality of adjustment ventilation holes 3010 corresponding to the positions of the car top ventilation holes 3000 are arranged on the ventilation adjustment plate 301, and the ventilation adjustment plate 301 can adjust its position on the car top plate 300 to change the overlapping area between the car top ventilation holes 3000 and the adjustment ventilation holes 3010, thereby changing the ventilation effect of the elevator car top structure.

[0045] Continue reading Figure 3-Figure 6 In one embodiment of the present invention, a group of car roof ventilation holes 3000 are arranged on the front side and the left and right sides of the car roof panel 300, and corresponding ventilation adjustment plates 301 are arranged on the car roof ventilation holes 3000 on the left and right sides, and one ventilation adjustment plate 301 adjusts a group of car roof ventilation holes 3000.

[0046] Continue reading Figure 3-Figure 8 In one embodiment of the present invention, the car top ventilation hole 3000 and the adjustment ventilation hole are both long strip holes, the ventilation adjustment plate 301 is a long strip structure, and the ventilation adjustment plate 301 is connected to the car top ventilation hole 3000 through an adjusting bolt. After loosening the adjusting bolt, the adjusting bolt can slide on the car top ventilation hole 3000, so that the position of the ventilation adjustment plate 301 on the car top plate 300 can be adjusted.

[0047] Continue reading Figure 2 , Fig. 9 , Fig.10 In one embodiment of the present invention, a ceiling assembly 5 is provided at the lower end of the car top assembly 3. The ceiling assembly 5 is a hollow annular structure, which includes a rear frame 500, a front frame 501 arranged opposite to the rear frame 500, two lamp holder plates 502 respectively connected between the rear frame 500 and the front frame 501, lamps arranged on the lamp holder plates 502, and four hanging plates 503. The two lamp holder plates 502 are located on the left and right sides of the rear frame 500, and there is a gap between the lamp holder plates 502 and the car top plate 300. The four hanging plates 503 are located at the four corners of the ceiling assembly 5, which connect the front frame 501 and the lamp holder plates 502, or connect the rear frame 500 and the lamp holder plates 502. The hanging plates 503 are hung on the car top plate 300 by fasteners.

[0048] Continue reading Fig.10In one embodiment of the present invention, the lamp holder plate 502 includes a lamp holder plate horizontal section 5020 and a lamp holder plate inclined section 5021 connected to the lamp holder plate horizontal section 5020, the lamp holder plate horizontal section 5020 is close to the center side of the ceiling assembly 5, the lamp holder plate inclined section 5021 is away from the center side of the ceiling assembly 5, a plurality of first lamp holder plate ventilation holes 5022 are arranged on the lamp holder plate horizontal section 5020, the lamp holder plate inclined section 5021 is at a low position close to the center side of the ceiling assembly 5, and at a high position away from the center side of the ceiling assembly 5, a plurality of second lamp holder plate ventilation holes 5023 are arranged on the lamp holder plate inclined section 5021, the second lamp holder plate ventilation holes 5023 are inclined relative to the horizontal plane and face the adjacent car wall, the first lamp holder plate ventilation holes 5022 and the second lamp holder plate ventilation holes 5023 correspond to the lamps of the ceiling assembly 5, and can transmit light into the car, wherein the second lamp holder plate ventilation holes 5023 can transmit light to the adjacent car wall module.

[0049] Continue reading Figure 1 and Fig.11 In one embodiment of the present invention, a guardrail assembly 4 is arranged at the upper end of the car top assembly 3, and a plurality of protective covers 400 are arranged on the guardrail assembly 4. The protective covers 400 cover the car top ventilation holes 3000. The protective covers 400 have filter holes, which can prevent dust and other debris from entering the car, and ensure the cleanliness and hygiene of the car while ventilating it.

[0050] The ventilation principle of the car top assembly 3: the airflow above the car top enters the gap between the car top assembly 3 and the ceiling assembly 5 through the protective cover 400, the car top ventilation hole 3000, and the adjustment ventilation hole 3010 in turn. When the wind volume is small, the wind flows directly into the interior of the car from the hollow part of the ceiling assembly 5. When the wind volume is large, part of the wind enters the interior of the car through the first lamp holder plate ventilation hole 5022 and the second lamp holder plate ventilation hole 5023, and part of the wind flows into the interior of the car through the hollow part of the ceiling assembly 5.

[0051] Continue reading Figure 12-Figure 14In one embodiment of the present invention, the car wall assembly 2 includes four car wall modules spliced ​​end to end, namely a front car wall module 2a, a left car wall module 2b, a rear car wall module 2c and a right car wall module 2d, wherein the left car wall module 2b, the rear car wall module 2c and the right car wall module 2d are all configured as ventilation car wall modules, the ventilation car wall module includes a plurality of car wall units 200 spliced ​​in a horizontal direction, two adjacent car wall units 200 of a ventilation car wall module are connected by a folding structure, the folding structure includes a first folding 201 and a second folding 202 connected by a fastener, the fastener includes a bolt and a rivet nut fixed on the folding structure, the rivet nut is separated between the first folding 201 and the second folding 202, and is fixed on one of the foldings, the bolt passes through the other folding and is connected to the rivet nut, so that when the first folding 201 and the second folding 202 are connected, a car wall vent 203 can be formed between the two, and the second folding 202 covers the car wall vent 203 through the bending structure.

[0052] The first folded edge 201 and the second folded edge 202 are fixed to the ends of the corresponding car wall unit 200 .

[0053] Continue reading Figure 15-Figure 25 In one embodiment of the present invention, the car floor assembly includes a frame, a car floor board 100 arranged in the frame, and a floor 105 arranged at the upper end of the car floor board 100. A bottom-up air inlet channel is formed between the frame and the car floor board 100, and the air inlet channel allows air to enter the upper end of the car floor board 100 from the bottom of the car floor board 100 through the air inlet channel and enter the interior of the elevator car.

[0054] Continue reading Figure 15-Figure 25 In one embodiment of the present invention, the enclosure is a U-shaped structure as a whole, which includes an enclosure rear plate 101 and an enclosure left plate 102 and an enclosure right plate 103 respectively arranged on the left and right sides of the enclosure rear plate 101. The rear side of the car floor 100 is provided with a car floor rear flange 1000 facing upward, the left side of the car floor 100 is provided with a car floor left flange 1001 facing upward, and the right side of the car floor 100 is provided with a car floor right flange 1002 facing upward. The car floor rear flange 1000, the car floor left flange 1001, and the car floor right flange 1002 are connected to form a U-shaped structure. The enclosure rear plate 101 and the car floor rear flange 1000 are arranged opposite to each other, and an air inlet passage at the rear side of the car floor is formed therebetween. The enclosure left plate 102 and the car floor left flange 1001 are arranged opposite to each other, and an air inlet passage at the left side of the car floor is formed therebetween. The right plate 103 of the enclosure frame is arranged opposite to the right flange 1002 of the car floor plate, and an air inlet passage on the right side of the car floor is formed therebetween.

[0055] Further reading Figure 15-Figure 22In one embodiment of the present invention, the upper end of the enclosure rear plate 101 is extended forward to set the enclosure rear baffle 1010, and the enclosure rear baffle 1010 blocks the air inlet channel at the rear side of the car bottom. The upper end of the enclosure left plate 102 is extended rightward to set the enclosure left baffle 1020, and the enclosure left baffle 1020 blocks the air inlet channel on the left side of the car bottom. The upper end of the enclosure right plate 103 is extended leftward to set the enclosure right baffle 1030, and the enclosure right baffle 1030 blocks the air inlet channel on the right side of the car bottom. The enclosure rear baffle 1010, the enclosure left baffle 1020, and the enclosure right baffle 1030 play a role in preventing the ventilation channel from being exposed.

[0056] Continue reading Fig. 20 and Fig.23 In one embodiment of the present invention, a plurality of car floor reinforcement ribs 104 are arranged at intervals at the bottom of the car floor 100, and the car floor reinforcement ribs 104 are U-shaped groove structures. The rear plate 101, the left plate 102, and the right plate 103 of the enclosure are all welded to the corresponding car floor reinforcement ribs 104.

[0057] In the above technical solution, the present invention sets a frame on the outside of the car floor 100, and forms an air inlet channel between the frame and the car floor 100 to achieve air inlet to the car floor, and the frame can shield the air inlet channel to ensure the beauty of the car.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator car ventilation structure, comprising a car bottom assembly (1), a car wall assembly (2) arranged at the upper end of the car bottom assembly (1), and a car top assembly (3) arranged at the upper end of the car wall assembly (2), characterized in that: The car bottom assembly (1) comprises an enclosure frame and a car bottom plate (100) arranged in the enclosure frame, wherein an air inlet passage from bottom to top is formed between the enclosure frame and the car bottom plate (100), wherein the air inlet passage allows airflow to enter the upper end of the car bottom plate (100) from the bottom of the car bottom plate (100) through the air inlet passage and then enter the interior of the elevator car; the car top assembly (3) comprises a car top plate (300) and a ventilation adjustment plate (301), wherein a plurality of car top ventilation holes (3000) are arranged on the car top plate (300), wherein the ventilation adjustment plate (301) is arranged on the car top plate (300) and covers the car top ventilation holes (3000), wherein a plurality of adjustment ventilation holes (3010) corresponding to the positions of the car top ventilation holes (3000) are arranged on the ventilation adjustment plate (301), and wherein the ventilation adjustment plate (301) can adjust its position on the car top plate (300) so that the overlapping area between the car top ventilation holes (3000) and the adjustment ventilation holes (3010) is changed.

2. An elevator car ventilation structure according to claim 1, characterized in that: The rear side of the car floor panel (100) is provided with a car floor panel rear flange (1000) facing upward, the enclosure frame comprises an enclosure frame rear plate (101) arranged opposite to the car floor panel rear flange (1000), and an air inlet passage at the rear side of the car floor assembly (1) is formed between the car floor panel rear flange (1000) and the enclosure frame rear plate (101); The left side of the car floor plate (100) is provided with a left car floor plate flange (1001) facing upwards, the enclosure frame comprises an enclosure frame left plate (102) arranged opposite to the left car floor plate flange (1001), and an air inlet passage on the left side of the car floor assembly (1) is formed between the left car floor plate flange (1001) and the enclosure frame left plate (102); A right side flange (1002) of the car floor panel is arranged upward on the right side of the car floor panel (100); the enclosure frame comprises a right enclosure frame plate (103) arranged opposite to the right side flange (1002) of the car floor panel; an air inlet passage on the right side of the car floor assembly (1) is formed between the right side flange (1002) of the car floor panel and the right enclosure frame plate (103).

3. An elevator car ventilation structure according to claim 2, characterized in that: The upper end of the enclosure rear plate (101) is extended forward to form an enclosure rear baffle (1010), and the enclosure rear baffle (1010) blocks the air inlet channel at the rear side of the car bottom assembly (1); The upper end of the left plate (102) of the enclosure frame is extended rightward to form a left enclosure frame retaining edge (1020), and the left enclosure frame retaining edge (1020) blocks the air inlet channel on the left side of the car bottom assembly (1); The upper end of the right plate (103) of the enclosure frame is extended to the left to form a right enclosure frame retaining edge (1030), and the right enclosure frame retaining edge (1030) blocks the air inlet channel on the right side of the car bottom assembly (1).

4. The elevator car ventilation structure according to claim 1, characterized in that: The car top ventilation hole (3000) and the regulating ventilation hole (3010) are both long strip-shaped holes.

5. The elevator car ventilation structure according to claim 1, characterized in that: The ventilation adjustment plate (301) is connected to the car top ventilation hole (3000) via an adjustment bolt, and the position of the ventilation adjustment plate (301) on the car top plate (300) can be adjusted when the adjustment bolt is loosened.

6. The elevator car ventilation structure according to claim 1, characterized in that: A plurality of car top ventilation holes (3000) and ventilation adjustment plates (301) are provided on at least one side of the front, back, left, and right sides of the car top plate (300).

7. The elevator car ventilation structure according to claim 1, characterized in that: A ceiling assembly (5) is arranged at the lower end of the car top assembly (3); the ceiling assembly (5) is a hollow annular structure, comprising a rear frame (500), a front frame (501) arranged opposite to the rear frame (500), and two lamp holder plates (502) respectively connected between the rear frame (500) and the front frame (501); the two lamp holder plates (502) are located on the left and right sides of the rear frame (500).

8. An elevator car ventilation structure according to claim 7, characterized in that: The lamp holder plate (502) comprises a lamp holder plate horizontal section (5020) and a lamp holder plate inclined section (5021) connected to the lamp holder plate horizontal section (5020), the lamp holder plate horizontal section (5020) being close to the center side of the ceiling assembly (5), and the lamp holder plate inclined section (5021) being away from the center side of the ceiling assembly (5), a plurality of first lamp holder plate ventilation holes (5022) being arranged on the lamp holder plate horizontal section (5020), and a plurality of second lamp holder plate ventilation holes (5023) being arranged on the lamp holder plate inclined section (5021), the second lamp holder plate ventilation holes (5023) facing the adjacent car wall, the first lamp holder plate ventilation holes (5022) and the second lamp holder plate ventilation holes (5023) corresponding to the lamps of the ceiling assembly (5) and capable of transmitting light into the car.

9. The elevator car ventilation structure according to claim 7, characterized in that: A guardrail assembly (4) is arranged at the upper end of the car top assembly (3), a protective cover (400) is arranged on the guardrail assembly (4), the protective cover (400) covers the car top ventilation hole (3000), and a filter hole is arranged on the protective cover (400).

10. The elevator car ventilation structure according to claim 1, characterized in that: The car wall assembly (2) comprises four car wall modules spliced ​​end to end, wherein one or more car wall modules are configured as ventilation car wall modules, the ventilation car wall module comprising a plurality of car wall units (200) spliced ​​in a horizontal direction, two adjacent car wall units (200) of a ventilation car wall module being connected via a folding structure, the folding structure comprising a first folding edge (201) and a second folding edge (202) connected via a fastener, a car wall vent (203) being formed between the first folding edge (201) and the second folding edge (202), and the first folding edge (201) and / or the second folding edge (202) covering the car wall vent (203).

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