CN112744676A

CN112744676A - Ventilating exhaust fan assembly in elevator

Info

Publication number: CN112744676A
Application number: CN202011547747.0A
Authority: CN
Inventors: 刘建宏
Original assignee: Individual
Current assignee: Hunan Fuying Electromechanical Engineering Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-05-04
Anticipated expiration: 2040-12-24
Also published as: CN112744676B

Abstract

The invention discloses an air ventilation exhaust fan assembly in an elevator, which comprises an elevator car, wherein a partition plate is fixedly connected to the inner wall of the elevator car, a plurality of first through holes are uniformly formed in the middle of the partition plate, a shell is movably arranged on the inner wall of the partition plate, a movable hole is formed in the side wall of one end, corresponding to the inner position of the partition plate, of the shell, an annular mounting groove is formed in the inner wall of one end, corresponding to the position of the movable hole, of the partition plate, and the inner wall of the movable hole is movably connected. According to the invention, the two extrusion blocks are pressed by the thumb and the middle finger, the double-end telescopic rod and the damping spring are in a compressed state until the double-end telescopic rod and the damping spring can not be compressed, at the moment, the mounting block is completely positioned on the inner wall of the movable hole, the air inlet box and the shell can be drawn out from the inner wall of the partition plate, at the moment, the first soft magnet and the second soft magnet are separated, and the first filter screen is replaced and cleaned, so that the operation is simple and convenient to use, and the purpose of convenience in disassembly and cleaning can be realized.

Description

Ventilating exhaust fan assembly in elevator

Technical Field

The invention relates to the technical field of exhaust fans, in particular to an elevator internal ventilation exhaust fan assembly.

Background

In the life of people, the popularization and application of the elevator bring convenience to people. Elevators have been fully integrated into our lives as an important vehicle for transporting people and goods. The elevator car is used as a direct place for carrying people, people have higher and higher requirements on the elevator car, and the elevator car has more humanized requirements on additional functions besides the function of normal use. The elevator is because the space is narrow and small, and the air flow is relatively poor, and in order to improve the person's of taking experience, ventilation unit is all installed to most elevators, and the ventilation of elevator mainly is through installing the exhaust fan at the sedan-chair top, under the circumstances that the elevator circular telegram, bloies through the exhaust fan, realizes that the air flow in the sedan-chair, and the exhaust fan of elevator has the filtering and sterilizing function in the hospital.

However, in the prior art, when the air conditioner is in actual use, the air in the elevator is exhausted by the exhaust fan for a long time, filtered and disinfected, and then the filter screen is full of dust and is inconvenient to disassemble and clean.

Disclosure of Invention

The invention aims to provide an elevator ventilation exhaust fan assembly to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the elevator car comprises an elevator car body, a partition board is fixedly connected to the inner wall of the elevator car body, a plurality of first through holes are uniformly formed in the middle of the partition board, a shell is movably arranged on the inner wall of the partition board, a movable hole is formed in the side wall of one end, corresponding to the position of the inner part of the partition board, of the shell, an annular mounting groove is formed in the inner wall of one end, corresponding to the position of the movable hole, of the partition board, a mounting block is movably connected to the inner wall of the movable hole, a connecting block is fixedly connected to one end, away from the position of the movable hole, of the mounting block, a groove is formed in the bottom of one end, corresponding to the position of the connecting block, of the shell, the connecting block is movably inserted into the shell and extends into the groove, a movable groove, the quantity of connecting block is two, and two connecting blocks set up for the symmetry axis symmetry about the vertical axis of shell mid point, two the equal fixedly connected with double-end telescopic link of one end of extrusion piece opposite face, and the double-end telescopic link activity runs through and extends to the inside of shell, the one end fixedly connected with damping spring of the corresponding double-end telescopic link position of extrusion piece, damping spring fixed connection is at the inner wall of recess, the top fixedly connected with air inlet box of shell, the lateral wall of air inlet box runs through the embedding and has first soft magnet, the surface activity laminating of first soft magnet has the second soft magnet, the first filter screen of one end fixed surface connection that first soft magnet position was kept away from to the second soft magnet, a plurality of fresh air inlets have been seted up to the lateral wall of the corresponding first filter screen position of air inlet box.

Preferably, the partition plate is of an internal hollow structure, the surface of the shell is fixedly connected with a third blocking ring, the third blocking ring is located at the bottom of the movable hole, and the diameter of the third blocking ring is larger than the inner diameter of the partition plate.

Preferably, the number of the first soft magnets is two, and the two first soft magnets are symmetrically arranged around the horizontal axis of the midpoint of the air inlet box.

Preferably, a second through hole is formed in the top of the air inlet box, the interior of the second through hole is communicated with the interior of the air inlet box, an air inlet pipe is movably connected to the inner wall of the second through hole, a support is fixedly connected to the inner wall of the air inlet pipe, and a threaded rod is rotatably connected to the middle of the support through a bearing.

Preferably, the bottom of the threaded rod is of a pyramid structure, an angular cone groove is formed in the bottom of the inner wall of the air inlet box corresponding to the position of the threaded rod, the shape of the angular cone groove is matched with that of the bottom of the threaded rod, and the bottom of the threaded rod is movably inserted into the inner wall of the angular cone groove.

Preferably, the air-supply line activity runs through and extends to elevator car's top, the third through-hole has been seted up at the top of the corresponding air-supply line position of elevator car, and the inner wall of third through-hole and the surperficial swing joint of air-supply line, the surface of air-supply line is fixedly connected with respectively first to hinder retaining ring and second and hinders the retaining ring, first the ring that blocks closely laminates at the top of elevator car inner wall, the second blocks the top that the ring closely laminates at the air-supply line case, first one end that hinders retaining ring and elevator car opposite face all sets up roughly, and the second hinders the equal smooth setting of one end of retaining ring and air-supply line case opposite face.

Preferably, the top of the air inlet pipe is hinged with a first hinged rod, the top of the first hinged rod is hinged with a second hinged rod, the top of the second hinged rod is hinged with a top cover, the surface of the threaded rod is in threaded connection with a nut, the surface of the nut is fixedly connected with a connecting rod, the connecting rod is fixedly connected with the bottom of the top cover, the surface of the air inlet pipe corresponding to the first hinge rod is fixedly connected with a rubber elastic sheet, the rubber elastic sheet is fixedly connected with the peripheral side surface of the top cover, the middle part of the rubber elastic sheet is movably attached to one end of the opposite surface of the first hinge rod and the second hinge rod, the surface of the top of the air inlet pipe is fixedly connected with a second filter screen, the second filter screen is fixedly connected with the peripheral side surface of the top cover, the inner wall of the second filter screen is movably jointed with the surface of the rubber elastic sheet, the number of the first hinge rods is four, and the four first hinge rods are annularly hinged to the top of the air inlet pipe.

Preferably, the top fixedly connected with disinfect box of the corresponding second filter screen position of elevator car, the top fixedly connected with exhaust fan of disinfect box, the inner wall of disinfect box fixedly connected with heating rod and ultraviolet lamp respectively.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the two extrusion blocks are pressed by the thumb and the middle finger, the double-end telescopic rod and the damping spring are in a compressed state until the double-end telescopic rod and the damping spring can not be compressed, the mounting block is completely positioned on the inner wall of the movable hole at the moment, the air inlet box and the shell can be drawn out from the inner wall of the partition plate, the first soft magnet and the second soft magnet are separated at the moment, and the first filter screen is replaced and cleaned, so that the operation is simple and convenient to use, and the purposes of convenience in disassembly and cleaning can be realized;

2. the invention also discloses a method for disassembling the air inlet pipe and the second filter screen, wherein the air inlet pipe and the second filter screen are disassembled, the shell is rotated through the groove by a thumb and a middle finger, the shell drives the air inlet box to rotate, the air inlet box drives the pyramid groove to rotate when the air inlet box rotates, the first check ring and one end of the opposite surface of the elevator car are both arranged roughly, and the second check ring and one end of the opposite surface of the air inlet box are both arranged smoothly, so that the air inlet pipe cannot rotate along with the air inlet box when the air inlet box rotates, namely, the pyramid groove can drive the threaded rod and the air inlet pipe to rotate relatively, when the threaded rod rotates, the threaded rod drives the nut to move up and down, when the nut moves up, the nut drives the top cover to move up through the connecting rod, the first hinged rod and the second hinged rod are hinged with each other, and the rubber elastic sheet and the second filter screen are changed into a barrel, the diameters of the rubber elastic sheet and the second filter screen are not much different from the diameter of the air inlet pipe and can be separated from the inner wall of the third through hole, at the moment, the thumb and the middle finger press the two extrusion blocks, the double-end telescopic rod and the damping spring are in a compression state until the double-end telescopic rod and the damping spring cannot be compressed again, at the moment, the mounting block is completely positioned on the inner wall of the movable hole, the air inlet box and the shell can be drawn out from the inner wall of the partition plate, the rubber elastic sheet and the second filter screen also fall off from the inner wall of the third through hole, the purpose of disassembling and cleaning the air inlet pipe and the second filter screen is achieved, when the air inlet pipe and the second filter screen are mounted, the rubber elastic sheet and the second filter screen are inserted into the inner wall of the third;

3. the invention also can make the air in the elevator car enter the disinfection box through the first through hole, the first filter screen, the air inlet hole, the air inlet pipe and the second filter screen by the work of the exhaust fan, the air can be primarily filtered and finely filtered through the first filter screen and the second filter screen, and bacteria and viruses in the air in the disinfection box and on the surface of the second filter screen are eliminated through the heating rod and the ultraviolet lamp, thereby realizing the sterilization and disinfection effects.

Drawings

FIG. 1 is a front sectional view of an elevator ventilating fan assembly according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 of the ventilating and exhausting fan assembly for an elevator according to the present invention;

FIG. 3 is a front sectional view of the air inlet box of the ventilating and exhausting fan assembly in an elevator according to the present invention;

FIG. 4 is a front sectional view of an air intake duct structure of an elevator ventilating fan assembly according to the present invention;

fig. 5 is a bottom view of the housing structure of the ventilating fan assembly in an elevator according to the present invention.

In the figure: 1. an elevator car; 2. a partition plate; 3. a first through hole; 4. a housing; 5. a movable hole; 6. an annular mounting groove; 7. mounting blocks; 8. connecting blocks; 9. a groove; 10. a movable groove; 11. extruding the block; 12. a double-head telescopic rod; 13. a damping spring; 14. an air inlet box; 15. a first soft magnetic iron; 16. a second soft magnetic iron; 17. a first filter screen; 18. an air inlet hole; 19. a second through hole; 20. an air inlet pipe; 21. a support; 22. a threaded rod; 23. a pyramid groove; 24. a first hinge lever; 25. a second hinge lever; 26. a top cover; 27. a nut; 28. a connecting rod; 29. a rubber elastic sheet; 30. a second filter screen; 31. a first check ring; 32. a second check ring; 33. a third check ring; 34. a sterilizing box; 35. an exhaust fan; 36. a heating rod; 37. an ultraviolet lamp; 38. a third via.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Referring to fig. 1-5, the present invention provides a technical solution: comprises an elevator car 1, a partition plate 2 is fixedly arranged on the inner wall of the elevator car 1, a plurality of first through holes 3 are uniformly arranged in the middle of the partition plate 2, a shell 4 is movably arranged on the inner wall of the partition plate 2, a movable hole 5 is arranged on the side wall of one end of the shell 4 corresponding to the inner position of the partition plate 2 corresponding to the movable hole 5, an annular mounting groove 6 is arranged on the inner wall of one end of the partition plate 2 corresponding to the movable hole 5, a mounting block 7 is movably connected with the inner wall of the movable hole 5, a connecting block 8 is fixedly arranged on one end of the mounting block 7 far away from the movable hole 5, a groove 9 is arranged at the bottom of one end of the shell 4 corresponding to the connecting block 8, the connecting block 8 is movably inserted into the shell 4 and extends into the groove 9, a movable groove 10 is arranged on the side wall of one end of the shell 4, the quantity of connecting block 8 is two, and two connecting blocks 8 set up for the symmetry axis symmetry about the vertical axis in shell 4 mid point, the equal fixed mounting in one end of 11 opposite faces of two extrusion pieces has double-end telescopic link 12, and the activity of double-end telescopic link 12 runs through and extends to the inside of shell 4, the one end fixed mounting of the corresponding double-end telescopic link 12 position of extrusion piece 11 has damping spring 13, damping spring 13 fixed mounting is at the inner wall of recess 9, the top fixed mounting of shell 4 has air inlet box 14, air inlet box 14's lateral wall runs through the embedding and has first soft magnet 15, the surface activity laminating of first soft magnet 15 has second soft magnet 16, the one end fixed surface that first soft magnet 15 position was kept away from to second soft magnet 16 installs first filter screen 17, a plurality of inlet openings 18 have been seted up to the lateral wall of the corresponding first filter screen 17 position of.

The baffle 2 is an internal hollow structure, the surface of the shell 4 is fixedly provided with a third check ring 33, the third check ring 33 is positioned at the bottom of the movable hole 5, and the diameter of the third check ring 33 is larger than the inner diameter of the baffle 2.

The number of the first soft magnets 15 is two, and the two first soft magnets 15 are symmetrically arranged about a horizontal axis at the midpoint of the air inlet box 14.

The top of the air inlet box 14 is provided with a second through hole 19, the inside of the second through hole 19 is communicated with the inside of the air inlet box 14, the inner wall of the second through hole 19 is movably connected with an air inlet pipe 20, the inner wall of the air inlet pipe 20 is fixedly provided with a support 21, and the middle part of the support 21 is rotatably connected with a threaded rod 22 through a bearing.

The bottom of the threaded rod 22 is of a pyramid structure, an angular pyramid groove 23 is formed in the bottom of the inner wall of the air inlet box 14 corresponding to the position of the threaded rod 22, the shape of the angular pyramid groove 23 is matched with that of the bottom of the threaded rod 22, and the bottom of the threaded rod 22 is movably inserted into the inner wall of the angular pyramid groove 23.

The air-supply line 20 activity runs through and extends to elevator car 1's top, third through-hole 38 has been seted up at the top of the corresponding air-supply line 20 position of elevator car 1, and the inner wall of third through-hole 38 and the surface swing joint of air-supply line 20, the surface of air-supply line 20 fixed mounting respectively has first retaining ring 31 and second to block retaining ring 32, first retaining ring 31 that blocks closely laminates at the top of elevator car 1 inner wall, the second blocks retaining ring 32 and closely laminates at the top of air-supply line case 14, the first one end that blocks retaining ring 31 and elevator car 1 opposite face all sets up roughly, and the second blocks the equal smooth setting of one end of retaining ring 32 and air-supply line case 14 opposite face.

The top of the air inlet pipe 20 is hinged with a first hinged rod 24, the top of the first hinged rod 24 is hinged with a second hinged rod 25, the top of the second hinged rod 25 is hinged with a top cover 26, the surface of the threaded rod 22 is connected with a nut 27 in a threaded manner, the surface of the nut 27 is fixedly provided with a connecting rod 28, the connecting rod 28 is fixedly arranged at the bottom of the top cover 26, the surface of the air inlet pipe 20 corresponding to the position of the first hinged rod 24 is fixedly provided with a rubber elastic sheet 29, the rubber elastic sheet 29 is fixedly arranged on the peripheral side surface of the top cover 26, the middle part of the rubber elastic sheet 29 is movably attached to one end of the opposite surface of the first hinged rod 24 and the second hinged rod 25, the surface of the top of the air inlet pipe 20 is fixedly provided with a second filter screen 30, the second filter screen 30 is fixedly arranged on the peripheral side surface of the top cover 26, the inner, and four first hinge rods 24 are annularly hinged on the top of the air inlet pipe 20, when the air inlet pipe 20 and the second filter screen 30 are disassembled, the shell 4 is rotated through the groove 9 by the thumb and the middle finger positioned on the inner wall of the groove 9, and the shell 4 drives the air inlet box 14 to rotate, and when the air inlet box 14 rotates, the air inlet box 14 drives the pyramid groove 23 to rotate, because the first check ring 31 and one end of the opposite surface of the elevator car 1 are both roughly arranged, and the second check ring 32 and one end of the opposite surface of the air inlet box 14 are both smoothly arranged, the air inlet pipe 20 can not rotate along with the air inlet box 14 when the air inlet box 14 rotates, namely the pyramid groove 23 can drive the threaded rod 22 and the air inlet pipe 20 to rotate relatively, and when the threaded rod 22 rotates, the threaded rod 22 can drive the nut 27 to move up and down, when the nut 27 moves up, the nut 27 can drive the top cover 26 to move up through the connecting rod 28, and the first hinge rod 24 and the second hinge rod 25 are hinged with each other, the rubber elastic sheet 29 and the second filter screen 30 are changed from an oval structure to a barrel-shaped structure, the diameters of the rubber elastic sheet 29 and the second filter screen 30 are not much different from the diameter of the air inlet pipe 20 and can be separated from the inner wall of the third through hole 38, at the moment, the thumb and the middle finger press the two squeezing blocks 11, the double-end telescopic rod 12 and the damping spring 13 are in a compressed state until the double-end telescopic rod 12 and the damping spring 13 can not be compressed, at the moment, the mounting block 7 is completely positioned on the inner wall of the movable hole 5, the air inlet box 14 and the shell 4 can be drawn out from the inner wall of the partition plate 2, the rubber elastic sheet 29 and the second filter screen 30 also fall off from the inner wall of the third through hole 38, so as to finish the purposes of disassembling and cleaning the air inlet pipe 20 and the second filter screen 30, when the air pipe 20 and the second filter screen 30 are installed, the, and the air inlet box 14 and the pyramid groove 23 are rotated reversely.

Top fixed mounting of the corresponding second filter screen 30 position of elevator car 1 has disinfect box 34, the top fixed mounting of disinfect box 34 has exhaust fan 35, the inner wall of disinfect box 34 is fixed mounting respectively has heating rod 36 and ultraviolet lamp 37, work through exhaust fan 35, make the inside air of elevator car 1 pass through first through-hole 3, first filter screen 17, inlet air 18, air-supply line 20 and second filter screen 30 get into disinfect box 34 inside, can carry out primary filtration and meticulous filtration to the air through first filter screen 17 and second filter screen 30, and eliminate bacterium and the virus on disinfect box 34 inside air and second filter screen 30 surface through heating rod 36 and ultraviolet lamp 37, thereby realize the sterile effect of sterilization.

The working principle is as follows: when the air inlet box is used, when the shell 4 and the air inlet box 14 are installed, the two squeezing blocks 11 are pressed by a thumb and a middle finger, the double-end telescopic rod 12 and the damping spring 13 are in a compressed state until the double-end telescopic rod 12 and the damping spring 13 can not be compressed again, the installing block 7 is completely positioned on the inner wall of the movable hole 5 at the moment, then the air inlet box 14 is inserted into the inner wall of the partition plate 2 until the top of the third check ring 33 is attached to the bottom of the partition plate 2, the position of the movable hole 5 corresponds to the position of the annular installing groove 6 at the moment, the thumb and the middle finger are opened, the two squeezing blocks 11 are separated from each other under the action of resetting and stretching of the damping spring 13, the squeezing blocks 11 drive the installing block 7 to be inserted into the annular installing groove 6 through the connecting block 8, the installation of the shell 4 and the air inlet box 14 is completed, when the disassembly and cleaning are, and make double-end telescopic link 12 and damping spring 13 be in compression state, until double-end telescopic link 12 and damping spring 13 can't recompress, installation piece 7 is located the inner wall of activity hole 5 completely this moment, can take air inlet box 14 and shell 4 out from the inner wall of baffle 2, separate first soft magnet 15 and second soft magnet 16 this moment, and change and wash first filter screen 17, easy operation facilitates the use, thereby can realize the purpose convenient to detach and clearance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an exhaust fan subassembly of ventilating in elevator, includes elevator car (1), its characterized in that: the inner wall of the elevator car (1) is fixedly connected with a partition plate (2), a plurality of first through holes (3) are uniformly formed in the middle of the partition plate (2), an outer shell (4) is movably arranged on the inner wall of the partition plate (2), a movable hole (5) is formed in one end of the side wall, corresponding to the inner position of the partition plate (2), of the outer shell (4), an annular mounting groove (6) is formed in one end of the inner wall, corresponding to the position of the movable hole (5), of the partition plate (2), a mounting block (7) is movably connected to the inner wall of the movable hole (5), a connecting block (8) is fixedly connected to one end, far away from the position of the movable hole (5), of the mounting block (7), a groove (9) is formed in the bottom of one end, corresponding to the connecting block (8), of the outer shell (4), the connecting block (8) is movably inserted into the outer shell (4) and extends into the groove (, the surperficial swing joint of inner wall and connecting block (8) of activity groove (10), the one end fixedly connected with extrusion piece (11) of installation piece (7) position is kept away from in connecting block (8), the quantity of connecting block (8) is two, and two connecting blocks (8) are set up for symmetry axis symmetry about the vertical axis of shell (4) mid point, two the equal fixedly connected with double-end telescopic link (12) of one end of extrusion piece (11) opposite face, and the activity of double-end telescopic link (12) runs through and extends to the inside of shell (4), the one end fixedly connected with damping spring (13) of the corresponding double-end telescopic link (12) position of extrusion piece (11), damping spring (13) fixed connection is at the inner wall of recess (9), the top fixedly connected with air inlet box (14) of shell (4), the lateral wall of air inlet box (14) runs through the embedding and has first soft magnet (15), the surface of the first soft magnet (15) is movably attached with a second soft magnet (16), a first filter screen (17) is fixedly connected to the surface of one end, far away from the first soft magnet (15), of the second soft magnet (16), and a plurality of air inlet holes (18) are formed in the side wall, corresponding to the first filter screen (17), of the air inlet box (14).

2. An elevator ventilating and exhausting fan assembly according to claim 1, wherein: the baffle (2) is of an inner hollow structure, the surface of the shell (4) is fixedly connected with a third check ring (33), the third check ring (33) is located at the bottom of the movable hole (5), and the diameter of the third check ring (33) is larger than the inner diameter of the baffle (2).

3. An elevator ventilating and exhausting fan assembly according to claim 1, wherein: the number of the first soft magnets (15) is two, and the two first soft magnets (15) are symmetrically arranged around the horizontal axis of the midpoint of the air inlet box (14).

4. An elevator ventilating and exhausting fan assembly according to claim 1, wherein: the air inlet box is characterized in that a second through hole (19) is formed in the top of the air inlet box (14), the inside of the second through hole (19) is communicated with the inside of the air inlet box (14), an air inlet pipe (20) is movably connected to the inner wall of the second through hole (19), a support (21) is fixedly connected to the inner wall of the air inlet pipe (20), and a threaded rod (22) is rotatably connected to the middle of the support (21) through a bearing.

5. The ventilation fan assembly of claim 4, wherein: the bottom of the threaded rod (22) is of a pyramid structure, an angular cone groove (23) is formed in the bottom of the inner wall of the air inlet box (14) corresponding to the position of the threaded rod (22), the shape of the angular cone groove (23) is matched with that of the bottom of the threaded rod (22), and the bottom of the threaded rod (22) is movably inserted into the inner wall of the angular cone groove (23).

6. An elevator ventilating and exhausting fan assembly according to claim 5, wherein: the top that air-supply line (20) activity run through and extend to elevator car (1), third through-hole (38) have been seted up at the top of the corresponding air-supply line (20) position of elevator car (1), and the surface swing joint of the inner wall of third through-hole (38) and air-supply line (20), the surface of air-supply line (20) is fixedly connected with first block retaining ring (31) and second block retaining ring (32) respectively, first block retaining ring (31) closely laminate at the top of elevator car (1) inner wall, second block retaining ring (32) closely laminate at the top of air-supply line case (14), the first one end that blocks retaining ring (31) and elevator car (1) opposite face all sets up roughly, and the second blocks the one end of retaining ring (32) and air-supply line case (14) opposite face and all sets up smoothly.

7. An elevator ventilating and exhausting fan assembly according to claim 6, wherein: the top of the air inlet pipe (20) is hinged with a first hinged rod (24), the top of the first hinged rod (24) is hinged with a second hinged rod (25), the top of the second hinged rod (25) is hinged with a top cover (26), the surface of the threaded rod (22) is in threaded connection with a nut (27), the surface of the nut (27) is fixedly connected with a connecting rod (28), the connecting rod (28) is fixedly connected with the bottom of the top cover (26), the surface of the air inlet pipe (20) corresponding to the first hinged rod (24) is fixedly connected with a rubber elastic sheet (29), the rubber elastic sheet (29) is fixedly connected with the peripheral side of the top cover (26), the middle of the rubber elastic sheet (29) is movably jointed with one end of the opposite side of the first hinged rod (24) and the second hinged rod (25), the surface of the top of the air inlet pipe (20) is fixedly connected with a second filter screen (30), and second filter screen (30) fixed connection is in the all side of top cap (26), the inner wall of second filter screen (30) and the surperficial activity laminating of rubber shell fragment (29), the quantity of first articulated rod (24) is four, and four first articulated rod (24) are the top that the annular hinged is intake pipe (20).

8. An elevator ventilating and exhausting fan assembly according to claim 7, wherein: the top fixedly connected with disinfect box (34) of the corresponding second filter screen (30) position of elevator car (1), the top fixedly connected with exhaust fan (35) of disinfect box (34), the inner wall difference fixedly connected with heating rod (36) and ultraviolet lamp (37) of disinfect box (34).