Elevator car ventilation device

Abstract

The utility model relates to the field of ventilation devices, and discloses an elevator car ventilation device which comprises an elevator car, a limiting assembly is arranged at the top of the front side of the elevator car, sliding grooves are formed in the two ends of the top side of the elevator car, a base is inserted into the tops of the two sliding grooves, and dragging grooves are formed in the two sides of the bottom of the base. The inner walls of the close sides of the two sliding grooves are connected with pushing pads through elastic assemblies, pushing blocks are arranged in the sliding grooves, the outer walls of the close sides of the two pushing blocks are provided with sliding way assemblies, the sliding way assemblies are connected with the pushing pads, the top ends of the rear sides of the pushing blocks are fixedly connected with dragging blocks, and the front ends of the pushing blocks are fixedly connected with dragging handles. And the top of the base is fixedly connected with a case. When the ventilation device needs to be maintained and the filter screen needs to be replaced, the screw is screwed firstly, then the handle is grasped to open the cover door, the pulling handle is lifted to lift the pushing block upwards, the pushing block drives the pulling block to move upwards, and the pulling block is inserted into the pulling groove in the bottom end of the base.

Description

Technical Field

[0001] The utility model relates to the field of coking production devices, in particular to an elevator car ventilation device. Background Art

[0002] Elevators are one of the indispensable equipment in current high-rise buildings. With the development of the economy and the continuous improvement of people's living standards, the competition in elevator technology has become more and more intense, and people's requirements for taking elevators have become higher and higher. The elevator car is an elevator box structure used for riding. People enter the car and then the motor drives the car up and down to achieve the function of transportation. Because the car is a relatively sealed elevator box structure and there are many people riding, the car needs to be ventilated to ensure smooth breathing of the passengers.

[0003] The existing elevator car ventilation device generally includes a filter. The existing filter accumulates dust after working for a long time and needs to be replaced. It is very inconvenient for the staff to replace the filter in the prior art. In addition, the existing ventilation device is generally fixed on the top of the elevator car. If the ventilation device is damaged and needs maintenance, it is very inconvenient for the staff to repair it because it is fixed on the top of the elevator car. In this regard, in order to solve this technical problem, the present application proposes an elevator car ventilation device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an elevator car ventilation device, aiming to improve the inconvenience of replacing the ventilation device filter and the maintenance of the ventilation device in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A ventilation device for an elevator car comprises an elevator car, a limiting component is arranged on the top of the front side of the elevator car, slide grooves are arranged at both ends of the top side of the elevator car, a base is inserted at the top of the two slide grooves, and pulling grooves are arranged on both sides of the bottom of the base, and a push pad is connected to the inner wall of the two slide grooves on one side through an elastic component, a push block is arranged in the slide groove, and a slideway component is arranged on the outer wall of the two push blocks on one side, the slideway component is connected to the push pad, a pulling block is fixedly connected to the top end of the rear side of the push block, a pulling handle is fixedly connected to the front end of the push block, the top of the base is fixedly connected to the machine box, and the A ventilation component is provided inside the chassis, and grooves are provided on the upper and lower sides of the chassis, and a filter is slidably connected to the inner wall of the groove, and fixed blocks are fixedly connected to the filter on all sides, and spring tubes are fixedly connected to the left and right sides of the chassis, and a spacer is fixedly connected to the middle inner wall of the spring tube. A first spring is provided inside the spring tube, and a push rod is slidably connected to the inner wall of the spring tube, and the push rod is connected to the spring tube through a push-pull component, and a push strip is fixedly connected to the end of the push rod, and a side arm of the push strip is fixedly connected to a limiting rod, and a groove is provided in the middle of the fixed block, and the inner wall of the groove is plugged into the limiting rod.

[0007] Furthermore, the limiting assembly includes a cover door rotatably connected to the top end of the front side of the outer wall of the elevator box, a handle is fixedly connected to the left side of the front end of the cover door, a screw is threadedly connected to the left side of the front end of the cover door, and the rear side of the screw outer wall is threadedly connected to the elevator box.

[0008] Furthermore, the ventilation component includes a ventilation fan arranged inside the chassis, the top and bottom of the chassis are provided with grooves, the inner wall of the top groove is fixedly connected with an air inlet pipe, the inner wall of the bottom groove is fixedly connected with an air outlet pipe, and an air inlet is provided in the middle of the top end of the elevator box, and the air inlet is plugged into the air outlet pipe.

[0009] Furthermore, the push-pull assembly includes a limiting groove opened on the outer wall of the spring tube, the inner wall of the limiting groove is slidably connected to the limiting strip, and the bottom side of the outer wall of the push rod is fixedly connected to the limiting strip.

[0010] Furthermore, the elastic component includes an elastic rod fixed on the inner wall of the slide groove, a connecting rod is slidably connected to the left side of the outer wall of the elastic rod, the left side of the connecting rod is fixedly connected to the push pad, and a second spring is arranged on the inner wall of the connecting rod.

[0011] Furthermore, one end of the second spring is fixedly connected to the left outer wall of the elastic rod, and the other end of the second spring is fixedly connected to the left inner wall of the connecting rod.

[0012] Furthermore, the slide assembly includes a movable groove arranged in the middle of the right outer wall of the push block, the right outer wall of the push block is vertically provided with upper and lower grooves, the inner wall of the movable groove is slidably connected to the push pad, and the inner wall of the upper and lower grooves is slidably connected to the push pad.

[0013] Furthermore, one end of the first spring is fixedly connected to the top end of the spacer block, and the other end of the first spring is fixedly connected to the bottom end of the push rod.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, by pulling the limit rod to move along the limit groove toward the spacer block, the push rod is squeezed by the first spring end, the first spring drives the push strip to pull the limit rod out of the groove of the fixed block, and the limit rod is rotated along the limit groove so that the limit strip is blocked by the limit groove and will not be affected by the first spring connected to the push rod to drive the push rod to move. The filter can be pulled out of the chassis for cleaning and replacement. After the replacement is completed, the first spring of the limit rod is rotated to pop out the push rod, and the push rod drives the push strip to move toward the fixed block. The top strip drives the limit rod to insert into the groove of the fixed block to fix the filter, thereby achieving a more convenient effect of replacing the filter.

[0016] 2. In the utility model, the pull block is inserted into the pull groove of the base by lifting the pull handle, and the second spring pushes the connecting rod against the push block so that the push block can be driven to slide on the slide groove by pulling the pull handle, thereby repairing the ventilation device. After the repair, the pull handle is pushed to drive the push block to return the chassis to its original position, and the pull handle is pulled to drive the push block to apply force to the push pad to compress the second spring, and then the pull handle is pulled downward to pull the pull block out of the pull groove, thereby achieving the effect of making it more convenient to repair the ventilation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of an elevator car ventilation device proposed by the utility model;

[0018] Figure 2 A three-dimensional diagram of a chassis of an elevator car ventilation device proposed by the utility model;

[0019] Figure 3 A cross-sectional view of a chassis of an elevator car ventilation device proposed by the utility model;

[0020] Figure 4 A cross-sectional view of a spring tube of an elevator car ventilation device proposed by the utility model;

[0021] Figure 5 This is a structural diagram of a push-pull assembly of an elevator car ventilation device proposed by the utility model;

[0022] Figure 6 A schematic diagram of a base of an elevator car ventilation device proposed by the utility model;

[0023] Figure 7 This is a structural diagram of a replacement device for an elevator car ventilation device proposed by the utility model;

[0024] Figure 8This is a cross-sectional view of a connecting rod of an elevator car ventilation device proposed by the utility model.

[0025] Legend:

[0026] 1. Elevator box; 2. Chassis; 3. Cover door; 4. Handle; 5. Screw; 6. Ventilator; 7. Inlet pipe; 8. Exhaust pipe; 9. Filter; 10. Fixing block; 11. Spring tube; 12. Push rod; 13. Push bar; 14. Limit rod; 15. Spacer; 16. First spring; 17. Limit groove; 18. Limit bar; 19. Base; 20. Push block; 21. Spring rod; 22. Connecting rod; 23. Second spring; 24. Push pad; 25. Pull block; 26. Pull handle; 27. Upper and lower grooves; 28. Moving groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-8, the utility model provides an embodiment: an elevator car ventilation device, including an elevator box 1, a limit assembly is arranged on the top of the front side of the elevator box 1 to prevent the push block 20 from sliding out of the slide slot; slide slots are provided at both ends of the top side of the elevator box 1, and a base 19 is inserted at the top of the two slide slots, and a pull slot is provided on both sides of the bottom of the base 19, and a push pad 24 is connected to the inner wall of the two slide slots through an elastic component to push the push block 20; a push block 20 is arranged in the slide slot, and a slideway assembly is arranged on the outer wall of the two push blocks 20, and the slideway assembly is connected to the push pad so that the push block 20 drives the base 19 to drive the chassis 2 to slide out, and the elastic assembly will not affect the work; a pull block 25 is fixedly connected to the top of the rear side of the push block 20, and a pull handle 26 is fixedly connected to the front end of the push block 20, and the pull handle 26 is grasped to drive the push block 20 to drive the pull block 25 to pull out the chassis 2; the top of the base 19 is fixedly connected to the chassis 2, and a ventilation assembly is arranged inside the chassis 2, so as to enter the elevator car The upper and lower sides of the chassis 2 are provided with grooves, and the inner wall of the groove is slidably connected with a filter screen 9. The filter screen 9 is fixedly connected with a fixed block 10 all around. The left and right sides of the chassis 2 are fixedly connected with a spring tube 11, and the limit of the push rod 12 will not be affected by the first spring 16 connected to the push rod 12. The movement of the push rod 12 is driven; the inner wall of the middle part of the spring tube 11 is fixedly connected with a spacer 15, and a first spring 16 is arranged inside the spring tube 11. The inner wall of the spring tube 11 is slidably connected with the push rod 12, and the push rod 12 is connected to the spring tube 11 through a push-pull assembly. The end of the push rod 12 is fixedly connected with a top strip 13, and the side arm of the top strip 13 is fixedly connected with a limiting rod 14. A groove is provided in the middle part of the fixed block 10, and the inner wall of the groove is plugged into the limiting rod 14; the first spring 16 applies force to drive the push rod 12 toward the fixed block 10, and the push rod 12 drives the top strip 13 to move toward the fixed block 10, and the top strip 13 drives the limiting rod 14 to insert into the groove of the fixed block 10 to fix the filter screen 9.

[0029] The limit assembly includes a cover door 3 rotatably connected to the top of the front side of the outer wall of the elevator box 1, a handle 4 is fixedly connected to the left side of the front end of the cover door 3, a screw 5 is threadedly connected to the left side of the front end of the cover door 3, and the rear side of the outer wall of the screw 5 is threadedly connected to the elevator box 1. Turn the screw 5 and then grab the handle 4 to open the cover door 3;

[0030] The ventilation assembly includes a ventilation fan 6 arranged inside the chassis 2. The chassis 2 is provided with grooves at the top and bottom. An air inlet pipe 7 is fixedly connected to the inner wall of the top groove. An air outlet pipe 8 is fixedly connected to the inner wall of the bottom groove. An air inlet is provided at the middle of the top of the elevator box 1. The air inlet is plugged with the air outlet pipe 8. When the ventilation fan 6 is started, fresh air is drawn from the air inlet pipe 7 to the air outlet pipe 8.

[0031] The push-pull assembly includes a limit groove 17 provided on the outer wall of the spring tube 11, the inner wall of the limit groove 17 is slidably connected to a limit strip 18, the bottom side of the outer wall of the ejector rod 12 is fixedly connected to the limit strip 18, the limit strip 18 pulls the ejector rod 12 to slide along the inner wall of the limit groove 17 in the spring tube 11, and then the limit strip 18 is rotated along the inner wall of the limit groove 17, at this time, the limit strip 18 is blocked by the limit groove 17 and will not be affected by the first spring 16 connected to the ejector rod 12 to drive the ejector rod 12 to move;

[0032] The elastic component includes an elastic rod 21 fixed on the inner wall of the slide slot, a connecting rod 22 is slidably connected to the left side of the outer wall of the elastic rod 21, the left side of the connecting rod 22 is fixedly connected to the push pad 24, a second spring 23 is arranged on the inner wall of the connecting rod 22, one end of the second spring 23 is fixedly connected to the left outer wall of the elastic rod 21, and the other end of the second spring 23 is fixedly connected to the left side of the inner wall of the connecting rod 22. When the drag block 25 pushes the base 19 out of the slide slot, the second spring 23 pushes the push pad 24 on the connecting rod 22 to push the push block 20, so that one side of the push block 20 is placed on the slide slot and slides;

[0033] The slideway assembly includes a moving groove 28 disposed in the middle of the right outer wall of the push block 20. The right outer wall of the push block 20 is vertically provided with an upper and lower groove 27. The inner wall of the moving groove 28 is slidably connected to the push pad 24, and the inner wall of the upper and lower grooves 27 is slidably connected to the push pad 24. The push block 20 moves upward, and the push pad 24 slides in the upper and lower grooves 27. The push block 20 slides on the slideway, and the push pad 24 slides along the moving groove 28. One end of the first spring 16 is fixedly connected to the top of the spacer 15, and the other end of the first spring 16 is fixedly connected to the bottom of the push rod 12. The first spring 16 applies force to the push rod 12 so that the limit rod 14 can be inserted into the fixed block 10.

[0034] Working principle: When you want to repair the ventilation device and replace the filter 9, first tighten the screw 5 and then grab the handle 4 to open the cover door 3, lift the pull handle 26 to lift the push block 20 upward, the push block 20 drives the pull block 25 to move upward, the pull block 25 is inserted into the pull groove at the bottom of the base 19, and the push pad 24 slides along the upper and lower grooves 27 on the outer wall of the push block 20. When the pull block 25 pushes the base 19 out of the slide groove, the second spring 23 pushes the push pad 24 on the connecting rod 22 to push the push block 20, and one side of the push block 20 slides on the slide groove. At this time, the push pad 24 slides along the moving groove 28, and the pull handle 26 is The chassis 2 fixedly connected to the base 19 is pulled out to repair the ventilation device. The limit strip 18 is pulled to slide on the inner wall of the limit groove 17. The limit strip 18 pulls the push rod 12 to slide in the spring tube 11. The push strip 13 at the end of the push rod 12 moves with the push rod 12 to drive the limit rod 14 to be pulled out of the fixed block 10, and the limit strip 18 is rotated along the inner wall of the limit groove 17. At this time, the limit strip 18 is blocked by the limit groove 17 and will not be affected by the first spring 16 connected to the push rod 12 to drive the push rod 12 to move. Then the fixed block 10 is pulled to pull the filter 9 out of the chassis 2 for replacement and cleaning. After replacement, insert the filter 9 into the chassis 2, rotate the limit strip 18 along the limit groove 17, and under the power of the first spring 16, the first spring 16 applies force to drive the push rod 12 toward the fixed block 10, and the push rod 12 drives the top strip 13 to move toward the fixed block 10, and the top strip 13 drives the limit rod 14 to insert into the groove of the fixed block 10 to fix the filter 9; then grasp the handle 26 to push the push block 20 inward along the slide groove, and after reaching the original position, squeeze the push block 20 toward the push pad 24, the second spring 23 is squeezed and contracted, and then the push block 20 slides downward to insert the base 19 back into the slide groove. The same steps are followed after the ventilation device is repaired.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An elevator car ventilation device, comprising an elevator car (1), characterized in that: A limit assembly is provided at the top of the front side of the elevator box (1), and both ends of the top side of the elevator box (1) are provided with slide grooves, and the tops of the two slide grooves are plugged with bases (19), and the bottom sides of the base (19) are provided with pull grooves, and the inner walls of the two slide grooves on the sides close to each other are connected with push pads (24) through elastic components, and push blocks (20) are provided in the slide grooves, and the outer walls of the two push blocks (20) on the sides close to each other are provided with slideway assemblies, and the slideway assemblies are connected to the push pads (24), and the top ends of the rear sides of the push blocks (20) are fixedly connected with pull blocks (25), and the front ends of the push blocks (20) are fixedly connected with pull handles (26), and the top of the base (19) is fixedly connected with a chassis (2), and a ventilation assembly is provided inside the chassis (2), and the chassis (2) Grooves are provided on the upper and lower sides, a filter screen (9) is slidably connected to the inner wall of the groove, and the filter screen (9) is fixedly connected to fixed blocks (10) on all sides, and the left and right sides of the chassis (2) are fixedly connected to spring tubes (11), and the middle inner wall of the spring tube (11) is fixedly connected to a spacer (15), and a first spring (16) is arranged inside the spring tube (11), and the inner wall of the spring tube (11) is slidably connected to a push rod (12), and the push rod (12) is connected to the spring tube (11) through a push-pull assembly, and the end of the push rod (12) is fixedly connected to a push strip (13), and the side arm of the push strip (13) is fixedly connected to a limit rod (14), and a groove is provided in the middle of the fixed block (10), and the inner wall of the groove is plugged into the limit rod (14).

2. An elevator car ventilation device according to claim 1, characterized in that: The limit assembly comprises a cover door (3) rotatably connected to the top end of the front side of the outer wall of the elevator box (1); a handle (4) is fixedly connected to the left side of the front end of the cover door (3); a screw (5) is threadedly connected to the left side of the front end of the cover door (3); and the rear side of the outer wall of the screw (5) is threadedly connected to the elevator box (1).

3. An elevator car ventilation device according to claim 1, characterized in that: The ventilation assembly comprises a ventilation fan (6) arranged inside the chassis (2); the chassis (2) is provided with grooves at the top and bottom; an air inlet pipe (7) is fixedly connected to the inner wall of the groove at the top; an air outlet pipe (8) is fixedly connected to the inner wall of the groove at the bottom; an air inlet port is provided at the middle of the top end of the elevator box (1); the air inlet port is plugged into the air outlet pipe (8).

4. An elevator car ventilation device according to claim 1, characterized in that: The push-pull assembly comprises a limiting groove (17) formed on the outer wall of the spring tube (11); the inner wall of the limiting groove (17) is slidably connected to a limiting strip (18); and the bottom side of the outer wall of the push rod (12) is fixedly connected to the limiting strip (18).

5. The elevator car ventilation device according to claim 1, characterized in that: The elastic component comprises an elastic rod (21) fixed on the inner wall of the slide groove, a connecting rod (22) is slidably connected to the left side of the outer wall of the elastic rod (21), the left side of the connecting rod (22) is fixedly connected to the push pad (24), and a second spring (23) is arranged on the inner wall of the connecting rod (22).

6. An elevator car ventilation device according to claim 5, characterized in that: One end of the second spring (23) is fixedly connected to the left outer wall of the elastic rod (21), and the other end of the second spring (23) is fixedly connected to the left inner wall of the connecting rod (22).

7. An elevator car ventilation device according to claim 5, characterized in that: The slideway assembly comprises a movable groove (28) arranged in the middle of the right outer wall of the push block (20); the right outer wall of the push block (20) is vertically provided with upper and lower grooves (27); the inner wall of the movable groove (28) is slidably connected to the push pad (24); and the inner wall of the upper and lower grooves (27) is slidably connected to the push pad (24).

8. An elevator car ventilation device according to claim 1, characterized in that: One end of the first spring (16) is fixedly connected to the top end of the spacer (15), and the other end of the first spring (16) is fixedly connected to the bottom end of the push rod (12).

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