Ventilation structure of elevator car

Abstract

The utility model relates to the technical field of elevators, and discloses an elevator car ventilation structure which comprises a car body, an air outlet and an air inlet are formed in the top end and one side of the interior of the car body respectively, an air outlet pipeline is installed at the top end of the air outlet, an air inlet pipeline is installed on one side of the air inlet, and the air outlet pipeline is communicated with the air inlet pipeline. Dust-proof plates are installed in the air outlet and the air inlet, connecting blocks are fixedly connected to the front end and the rear end of the air inlet pipeline, a replacement groove is formed in the top end of the air inlet pipeline, a filter plate is slidably connected to the interior of the replacement groove, and traction grooves are formed in the two sides of the interior of each connecting block. According to the ventilation structure of the elevator car, through the design that the filter plate can be conveniently replaced, when the filter plate needs to be replaced due to the fact that the filter plate adsorbs many harmful substances, maintenance work is simpler and rapider, complex tools and professional skills are not needed, the workload and working time of maintenance personnel can be remarkably reduced, and then the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to a ventilation structure for an elevator car. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building. Its car moves on at least two rigid tracks that are perpendicular to the horizontal plane or have an angle of inclination of less than 15 degrees to the vertical. The ventilation structure is an important component of the elevator car, and its function is to provide good air circulation inside the car to ensure the comfort, health and safety of passengers during the elevator ride.

[0003] Traditional elevator car ventilation systems typically install filter plates inside to absorb dust or harmful substances. To maintain the cleanliness of the air inside the car, the filter plates need to be replaced regularly. However, when replacing existing filter plates, it is generally necessary to first remove the screws used for fixing them. This process is not only cumbersome, but also time-consuming and labor-intensive during installation, resulting in a large workload and seriously affecting the replacement efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the replacement of filter plates in the ventilation structure of the existing technology is relatively cumbersome. Therefore, we propose a ventilation structure for elevator cars.

[0005] To achieve the above objectives, this application adopts the following technical solution: a ventilation structure for an elevator car, comprising a car body, wherein an air outlet and an air inlet are respectively provided at the top and one side of the interior of the car body; an air outlet duct is installed at the top of the air outlet, and an air inlet duct is installed on one side of the air inlet; dustproof plates are installed inside both the air outlet and the air inlet; connecting blocks are fixedly connected to the front and rear ends of the air inlet duct; a replacement groove is provided at the top of the air inlet duct, and a filter plate is slidably connected inside the replacement groove; the connecting blocks... Both sides of the internal structure have traction grooves, and traction blocks are slidably connected inside the traction grooves. A toggle plate is fixedly connected to the opposite side of the traction blocks. A tension spring is fixedly connected inside the connecting block. The end of the toggle plate near the tension spring is fixedly connected to the tension spring. A limit plate is fixedly connected to the end of the toggle plate near the filter plate. A snap-fit ​​plate is fixedly connected to the end of the toggle plate away from the filter plate. A snap-fit ​​groove is formed on the surface of the snap-fit ​​plate. A snap-fit ​​post is fixedly connected to the top of the connecting block. The inside of the snap-fit ​​groove is snapped into the snap-fit ​​post.

[0006] Preferably, the inner diameter of the snap-fit ​​groove is designed to match the size of the snap-fit ​​post.

[0007] Preferably, the top and bottom of the traction groove are provided with sliding grooves, and the top and bottom of the traction block are fixedly connected with sliders, and the inside of the sliding groove is slidably connected to the sliders.

[0008] Preferably, a rubber contact plate is installed inside the limiting plate.

[0009] Preferably, the inside of the replacement slot has a chamfer.

[0010] Preferably, the surface of the dustproof plate is equipped with inclined plates, and there are multiple inclined plates that are rotatably connected to the interior of the dustproof plate.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] In this invention, when the filter plate needs to be disassembled and replaced, the actuating plate is pulled to engage the locking groove with the locking post, releasing the filter plate from its clamped state. The filter plate can then be removed for replacement. After replacement, the filter plate is slid back into the replacement slot, and the locking groove is released from the locking post. The actuating plate, due to the tension of the spring, will then press the limiting plate against the filter plate, achieving rapid fixation after installation. This design allows for convenient filter plate replacement, simplifying and speeding up maintenance when the filter plate needs replacement due to excessive adsorption of harmful substances. It eliminates the need for complex tools and specialized skills, significantly reducing the workload and time required for maintenance personnel, thereby lowering labor costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the elevator car and ventilation structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the car of this utility model;

[0015] Figure 3 This is a schematic diagram of the air outlet duct and air inlet duct structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the dustproof plate structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the air inlet duct structure of this utility model;

[0018] Figure 6 This is an enlarged schematic diagram of the filter plate fixing structure of this utility model.

[0019] Legend: 1. Car body; 2. Air outlet; 3. Air inlet; 4. Air outlet duct; 5. Air inlet duct; 6. Dustproof plate; 7. Connecting block; 8. Replacement slot; 9. Filter plate; 10. Traction slot; 11. Traction block; 12. Actuating plate; 13. Tension spring; 14. Limiting plate; 15. Snap-fit ​​plate; 16. Snap-fit ​​slot; 17. Snap-fit ​​column; 18. Slide groove; 19. Sliding block; 20. Rubber contact plate; 21. Chamfer; 22. Inclined plate. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0021] Reference Figures 1-6 As shown, this utility model provides a technical solution: a ventilation structure for an elevator car, including a car body 1. An air outlet 2 and an air inlet 3 are respectively provided at the top and one side of the interior of the car body 1. An air outlet duct 4 is installed at the top of the air outlet 2, and an air inlet duct 5 is installed on one side of the air inlet 3. Dustproof plates 6 are installed inside both the air outlet 2 and the air inlet 3. Connecting blocks 7 are fixedly connected to the front and rear ends of the air inlet duct 5. A replacement groove 8 is provided at the top of the air inlet duct 5, and a filter plate 9 is slidably connected inside the replacement groove 8. Traction grooves 10 are provided on both sides inside the connecting block 7, and traction blocks 11 are slidably connected inside the traction grooves 10. A toggle plate 12 is fixedly connected to the opposite side of the traction blocks 11. A tension spring 13 is fixedly connected inside the connecting block 7. One end of the toggle plate 12 near the tension spring 13 is fixedly connected to the tension spring 13, and a limit plate 14 is fixedly connected to the end of the toggle plate 12 near the filter plate 9. The toggle plate 12 is further away from the filter plate. One end of the filter plate 9 is fixedly connected to a snap-fit ​​plate 15. The snap-fit ​​plate 15 has a snap-fit ​​groove 16 on its surface. The top of the connecting block 7 is fixedly connected to a snap-fit ​​post 17. The inside of the snap-fit ​​groove 16 is snapped into the snap-fit ​​post 17. When the staff needs to disassemble and replace the filter plate 9, they pull the actuating plate 12 to snap the snap-fit ​​groove 16 into the snap-fit ​​post 17, thus releasing the filter plate 9 from its pressed and fixed state. Then the filter plate 9 can be taken out for replacement. After completion, the filter plate 9 is slid back into the replacement slot 8, and the snap-fit ​​groove 16 is released from the snap-fit ​​post 17. At this time, the actuating plate 12 will drive the limiting plate 14 to press the filter plate 9 due to the tension of the tension spring 13, thereby achieving quick fixation of the filter plate 9 after installation. With the design that allows for convenient replacement of the filter plate 9, when the filter plate 9 needs to be replaced due to the adsorption of a lot of harmful substances, the maintenance work is simpler and faster, without the need for complicated tools and professional skills, which can significantly reduce the workload and working time of maintenance personnel, thereby reducing labor costs.

[0022] Reference Figure 6As shown in this embodiment, the inner diameter of the snap-fit ​​groove 16 is designed to match the size of the snap-fit ​​post 17. By using the snap-fit ​​groove 16 and the snap-fit ​​post 17 together, the toggle plate 12 will not shake or shift during the fixing process, effectively ensuring the stability of the fixing when the snap-fit ​​groove 16 and the snap-fit ​​post 17 are snapped together.

[0023] Reference Figure 6 As shown in this embodiment: the top and bottom of the traction groove 10 are provided with sliding grooves 18, and the top and bottom of the traction block 11 are fixedly connected with sliders 19. The inside of the sliding groove 18 is slidably connected to the sliders 19. Through the setting of the sliding groove 18 and the sliders 19, the actuating plate 12 can form a stable guiding effect when sliding inside the connecting block 7, thereby effectively controlling the movement trajectory of the limiting plate 14, so that it can firmly press the filter plate 9, and improve the stability of the fixing process after the filter plate 9 is disassembled and replaced.

[0024] Reference Figure 6 As shown in this embodiment: a rubber contact plate 20 is installed inside the limiting plate 14. By installing the rubber contact plate 20 inside the limiting plate 14, the limiting plate 14 can have greater friction after pressing the filter plate 9, thereby making the filter plate 9 more stable during the fixing process and less prone to displacement.

[0025] Reference Figure 5 As shown in this embodiment: the inside of the replacement groove 8 is provided with a chamfer 21. By setting the chamfer 21, the filter plate 9 can have a larger alignment area when it slides into the replacement groove 8, thereby making the installation of the filter plate 9 more convenient and further improving the operating efficiency of the staff.

[0026] Reference Figure 4 As shown in this embodiment: a plurality of inclined plates 22 are installed on the surface of the dustproof plate 6 and are rotatably connected to the interior of the dustproof plate 6. By setting the inclined plates 22, when the ventilation structure is used in different seasons, the position of the inclined plates 22 can be adjusted to control the amount of air in and out. When the flow of people is large or the air is polluted, the ventilation volume is increased, and when the air volume is reduced in cold or hot weather, the ventilation volume is reduced to maintain a stable temperature inside the car, effectively improving the performance.

[0027] Working principle: When the operator needs to disassemble and replace the filter plate 9, the actuating plate 12 is pulled to engage the locking groove 16 with the locking post 17, releasing the filter plate 9 from its clamped state. The filter plate 9 can then be removed for replacement. After replacement, the filter plate 9 is slid back into the replacement slot 8, and the locking groove 16 and locking post 17 are released. At this point, the actuating plate 12, due to the tension of the tension spring 13, will cause the limiting plate 14 to press the filter plate 9, thus achieving quick fixation of the filter plate 9 after installation. This design allows for convenient replacement of the filter plate 9, making maintenance simpler and faster when the filter plate 9 needs replacement due to excessive adsorption of harmful substances. It requires no complex tools or professional skills, significantly reducing the workload and time of maintenance personnel, thereby lowering labor costs. The use of the locking groove 16 and locking post 17 ensures that the actuating plate 12 will not shake or shift during the fixing process, effectively guaranteeing the stability of the locking groove 16 and locking post 17 during engagement. The sliding groove 1... The arrangement of 8 and slider 19 allows the toggle plate 12 to slide inside the connecting block 7, providing a stable guide and effectively controlling the movement trajectory of the limiting plate 14. This ensures the filter plate 9 is firmly pressed, improving the stability of the fixing process after filter plate 9 is disassembled and replaced. By installing a rubber contact plate 20 inside the limiting plate 14, the limiting plate 14 can provide greater friction after pressing the filter plate 9, making the filter plate 9 more stable during fixing and less prone to displacement. The chamfer 21 provides a larger alignment area when the filter plate 9 slides into the replacement slot 8, making the installation of the filter plate 9 more convenient and further improving the efficiency of the operator. The inclined plate 22 allows the airflow to be controlled by adjusting its position when using the ventilation structure in different seasons. Increase the ventilation volume when there is a large flow of people or the air is polluted, and reduce the ventilation volume in cold or hot weather to maintain a stable temperature inside the car, effectively improving the performance.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ventilation structure for an elevator car, comprising a car body (1), characterized in that: The car body (1) has an air outlet (2) and an air inlet (3) on its top and one side, respectively. An air outlet duct (4) is installed on the top of the air outlet (2), and an air inlet duct (5) is installed on one side of the air inlet (3). Dustproof plates (6) are installed inside both the air outlet (2) and the air inlet (3). Connecting blocks (7) are fixedly connected to the front and rear ends of the air inlet duct (5). A replacement groove (8) is opened at the top of the air inlet duct (5). A filter plate (9) is slidably connected inside the replacement groove (8). Traction grooves (10) are opened on both sides inside the connecting block (7). Traction blocks are slidably connected inside the traction grooves (10). (11) A toggle plate (12) is fixedly connected to the opposite side of the traction block (11). A tension spring (13) is fixedly connected inside the connecting block (7). The end of the toggle plate (12) near the tension spring (13) is fixedly connected to the tension spring (13). A limit plate (14) is fixedly connected to the end of the toggle plate (12) near the filter plate (9). A snap-fit ​​plate (15) is fixedly connected to the end of the toggle plate (12) away from the filter plate (9). A snap-fit ​​groove (16) is opened on the surface of the snap-fit ​​plate (15). A snap-fit ​​post (17) is fixedly connected to the top of the connecting block (7). The inside of the snap-fit ​​groove (16) is snapped with the snap-fit ​​post (17).

2. The ventilation structure of an elevator car according to claim 1, characterized in that: The inner diameter of the snap-fit ​​groove (16) is designed to match the size of the snap-fit ​​post (17).

3. The ventilation structure of an elevator car according to claim 1, characterized in that: The top and bottom of the traction groove (10) are provided with sliding grooves (18), and the top and bottom of the traction block (11) are fixedly connected with sliders (19). The inside of the sliding groove (18) is slidably connected to the sliders (19).

4. The ventilation structure of an elevator car according to claim 1, characterized in that: A rubber contact plate (20) is installed inside the limiting plate (14).

5. The ventilation structure of an elevator car according to claim 1, characterized in that: The inside of the replacement slot (8) is chamfered (21).

6. The ventilation structure of an elevator car according to claim 1, characterized in that: The surface of the dustproof plate (6) is equipped with inclined plates (22), and there are multiple inclined plates (22) that are rotatably connected to the interior of the dustproof plate (6).

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