Ventilation filter mechanism for elevator

Abstract

The application discloses an elevator ventilation filtering mechanism and belongs to the technical field of elevator ventilation equipment. Mainly including the car, the upper end of the car is provided with a top plate, the middle part of the top plate is concave, the outer side of the top plate forms two groups of air cavities, grilles are arranged between the two groups of air cavities and the concave cavity, a flow-through channel is arranged between the two groups of air cavities, a ventilation assembly is arranged in the flow-through channel, the ventilation assembly comprises a ventilation shell arranged in the flow-through channel, an air inlet screen is arranged on one side of the ventilation shell, an air outlet screen is arranged on the other side of the ventilation shell, three groups of filtering assemblies are sequentially arranged in the ventilation shell, and a fan is arranged in the ventilation shell. The ventilation filtering mechanism for the elevator can realize internal circulation, external introduction and internal exhaust of airflow in the car through the ventilation assembly, so that the three ventilation states can be switched according to the change of the environment in the car and the external environment, and different ventilation requirements can be adapted.

Description

Technical Field

[0001] This application relates to the field of elevator ventilation equipment technology, specifically to a ventilation and filtration mechanism for elevators. Background Technology

[0002] An elevator is a power-driven electromechanical device that uses a car that runs along rigid guide rails or steps that run along a fixed route to lift or transport people or goods in parallel. A vertical elevator has a car that runs between at least two vertical or inclined rigid guide rails with an angle of less than 15°. The size and structure of the car facilitate passenger entry and exit or loading and unloading of goods.

[0003] During elevator use, due to the small and enclosed space and large passenger flow, the exchange of air with the outside is limited. Pollutants such as CO2 exhaled by passengers, water vapor produced by sweat evaporation, and skin flakes will accumulate rapidly, leading to excessive CO2 concentration and humidity imbalance. Therefore, it is necessary to equip elevators with ventilation and filtration mechanisms to facilitate ventilation and filtration of the elevator interior.

[0004] The elevator ventilation and filtration system is a key system for ensuring air quality in the elevator car. It filters dust, odors and harmful gases through physical interception, adsorption purification or sterilization, while maintaining air circulation through efficient ventilation to prevent stuffiness and lack of oxygen.

[0005] Existing elevator ventilation and filtration mechanisms typically use fans to force fresh air into the elevator car from the shaft while simultaneously expelling stale air to achieve ventilation. However, when the external environment is harsh, such as when the outside temperature is too high or too low, this method of introducing external airflow can significantly affect the temperature environment inside the elevator, leading to discomfort for the people inside. Therefore, it is necessary to provide a ventilation and filtration mechanism for elevators to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a ventilation and filtration mechanism for elevators that can flexibly select the ventilation mode according to the external environment of the car.

[0008] The technical solution adopted by this application to solve its technical problem is: an elevator ventilation and filtration mechanism, including a car, a top plate installed at the upper end of the car, the middle part of the top plate protruding upward and forming an internal cavity, and two sets of air cavities forming around the outer side of the top plate, namely a first air cavity and a second air cavity, and a grille is provided between the two sets of air cavities and the cavity.

[0009] A flow passage is provided between the first air cavity and the second air cavity, and a ventilation assembly is provided within the flow passage. The ventilation assembly includes:

[0010] A ventilation housing is fixedly installed inside the flow channel. An air inlet mesh plate is provided on one side of the ventilation housing, and an air outlet mesh plate is provided on the other side of the ventilation housing.

[0011] The ventilation housing is provided with a first filter assembly, a second filter assembly, and a third filter assembly in sequence.

[0012] A fan is installed inside the ventilation housing.

[0013] Furthermore, a first valve plate is provided inside the ventilation housing, the first valve plate is provided with a first vent hole, and the first valve plate is provided with a first valve body.

[0014] Furthermore, a second valve plate is provided inside the ventilation housing, the second valve plate is provided with a second vent hole, and the second valve plate is provided with a second valve body.

[0015] Furthermore, a ventilation plate is provided at the upper end of the ventilation shell, and a first air vent is provided on the ventilation plate. The first air vent communicates with the interior of the ventilation shell. A top shell is provided at the upper end of the ventilation plate, and a ventilation opening is provided on the top shell. The ventilation opening communicates with the first air vent.

[0016] Furthermore, a third valve body is provided inside the vent.

[0017] Furthermore, a partition is provided between the second valve plate and the fan, and an exhaust chamber is formed between the partition and the second valve plate. A second air outlet communicating with the exhaust chamber is provided on the ventilation plate.

[0018] Furthermore, there is a gap between the ventilation plate and the top shell for airflow to pass through.

[0019] Furthermore, side covers are provided at the upper ends of both the first and second air cavities.

[0020] The beneficial effects of this application are: the ventilation and filtration mechanism for elevators provided by this application, by being equipped with ventilation components, can realize internal circulation, external air intake, and internal exhaust of air in the car, thereby switching between the three ventilation states according to changes in the internal and external environments of the car, and thus adapting to different ventilation needs.

[0021] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is an overall schematic diagram of a ventilation and filtration mechanism for an elevator according to this application;

[0024] Figure 2 for Figure 1 Overall structural diagram of the central top slab;

[0025] Figure 3 for Figure 2 Exploded view of the overall structure of the central top plate;

[0026] Figure 4 for Figure 3 Schematic diagram of the internal structure of the central ventilation component;

[0027] Figure 5 for Figure 4 A partial structural diagram at point A in the middle;

[0028] Figure 6 This application illustrates three ventilation states. Figure 1 ;

[0029] Figure 7 This application illustrates three ventilation states. Figure 2 ;

[0030] Figure 8 This application illustrates three ventilation states. Figure 3 ;

[0031] The following are the labeling elements in the figure:

[0032] 1. Car body; 2. Side cover; 3. Top plate; 31. Cavity; 4. Flow passage; 5. Lighting fixture; 6. Grille; 7. Air chamber;

[0033] 8. Ventilation assembly; 81. Ventilation housing; 83. Air inlet grille; 84. First valve plate; 85. First valve body; 86. First filter assembly; 87. Second filter assembly; 88. Fan; 89. Third filter assembly; 810. Air outlet grille; 811. Ventilation plate; 812. Top shell; 813. Ventilation opening; 814. First air outlet; 815. Second valve plate; 816. Second air outlet; 817. Partition plate;

[0034] 9. Cover; 91. Folded edge. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0037] like Figures 1-3 As shown, this application provides a ventilation and filtration mechanism for elevators, including a car 1, which is a space for accommodating people or goods to ride in the elevator. A top plate 3 is fixedly installed at the upper end of the car 1, which is used to close the car 1.

[0038] Meanwhile, light fixtures 5 are installed on both sides of the top plate 3 to illuminate the interior of the car 1;

[0039] It should be noted that the middle part of the top plate 3 protrudes upward and forms an internal cavity 31, while two sets of air ducts 7 are formed around the outer periphery of the top plate 3. For ease of explanation, these are referred to as... Figure 3 For example, the air cavity 7 located on the right side is defined as the first air cavity, and the air cavity 7 located on the right side is defined as the second air cavity. A grille 6 is provided between the two sets of air cavities 7 and the concave cavity 31 to facilitate the exchange of airflow.

[0040] Meanwhile, an overflow channel 4 is provided between the first air cavity and the second air cavity, and a ventilation component 8 is provided in the overflow channel 4. The ventilation component 8 is used to introduce airflow from the first air cavity into the second air cavity.

[0041] It is understandable that the airflow inside the car 1 can enter the first air chamber through the grille 6, and then the airflow enters the second air chamber through the ventilation component 8. Finally, the airflow in the second air chamber can return to the interior of the car 1 through the grille 6, thus completing the basic internal airflow recirculation.

[0042] Furthermore, side covers 2 are provided at the upper ends of both the first and second air cavities to facilitate sealing of the first and second air cavities.

[0043] like Figures 4-5 As shown, the ventilation assembly 8 includes a ventilation shell 81 fixedly installed in the flow channel 4. An air inlet mesh plate 83 is provided on the side of the ventilation shell 81 near the first air chamber, and an air outlet mesh plate 810 is provided on the side of the ventilation shell 81 near the second air chamber, so as to guide the airflow through the air inlet mesh plate 83 and the air outlet mesh plate 810.

[0044] Three sets of filter components are arranged sequentially inside the ventilation housing 81, namely the first filter component 86, the second filter component 87, and the third filter component 89. All three filter components are equipped with activated carbon so that the airflow passing through the ventilation housing 81 can be filtered and purified by the activated carbon.

[0045] A fan 88 is installed inside the ventilation housing 81, located between the second filter assembly 87 and the third filter assembly 89. Through the action of the fan 88, airflow inside the car 1 is drawn in through the air inlet grille 83 and discharged through the air outlet grille 810. As the airflow flows inside the ventilation housing 81, it is purified and adsorbed by the three sets of filter assemblies to remove impurities from the airflow (see reference). Figure 6 This state is defined as the internal circulation state of the ventilation component 8.

[0046] Continue to refer to Figures 4-5 A first valve plate 84 is provided inside the ventilation housing 81 near the air inlet mesh plate 83. The first valve plate 84 is provided with a first vent hole (not shown in the figure). At the same time, a first valve body 85 is provided on the first valve plate 84. The first valve body 85 can be rotated under the drive of a motor or hydraulic motor to block or open the first vent hole.

[0047] Meanwhile, a second valve plate 815 is provided inside the ventilation housing 81 near the air outlet mesh plate 810. The second valve plate 815 is provided with a second vent hole (not shown in the figure), and a second valve body is provided on the second valve plate 815. The second valve body can be rotated under the drive of a motor or hydraulic motor to block or open the second vent hole.

[0048] Furthermore, a ventilation plate 811 is provided at the upper end of the ventilation shell 81, and a first air vent 814 is provided on the ventilation plate 811. The first air vent 814 communicates with the interior of the ventilation shell 81. At the same time, a top shell 812 is provided at the upper end of the ventilation plate 811, and a ventilation opening 813 is provided on the top shell 812. The ventilation opening 813 communicates with the first air vent 814.

[0049] Therefore, when airflow needs to be introduced into the car, the first vent can be closed through the first valve body 85. Subsequently, under the action of the fan 88, the external airflow will enter the interior of the ventilation shell 81 through the vent 813 and the first air outlet 814, and after being filtered, it will be guided into the second air chamber by the air outlet mesh plate 810, and then enter the interior of the car 1 through the grille 6 (see reference). Figure 7 This state is defined as the bleed air state of ventilation component 8;

[0050] Furthermore, a third valve body is provided inside the vent 813 to facilitate opening or closing the vent 813, thereby changing the ventilation state of the ventilation assembly 8.

[0051] like Figures 3-4 As shown, a partition 817 is provided between the second valve plate 815 and the fan 88, and an exhaust chamber is formed between the partition 817 and the second valve plate 815. At the same time, a second air outlet 816 communicating with the exhaust chamber is provided on the ventilation plate 811.

[0052] It should be noted that there is a gap between the ventilation plate 811 and the top shell 812 for airflow to pass through. Therefore, when the first vent is open and the second vent is closed, the airflow inside the car 1, under the action of the fan 88, will pass through the exhaust chamber, the second vent 816, and the gap between the ventilation plate 811 and the top shell 812, and be discharged through the vent 813, thereby achieving the discharge of airflow from the car 1 (see reference). Figure 8 This state is defined as the exhaust state of the ventilation component 8;

[0053] In summary, by installing the ventilation component 8, the airflow inside the car 1 can be internally circulated, externally drawn in, and internally exhausted. This allows the system to switch between the three ventilation states according to changes in the internal and external environments of the car 1, thereby adapting to different ventilation needs.

[0054] Furthermore, a cover 9 is provided at the upper end of the ventilation component 8, and the two ends of the cover 9 are provided with flanges 91, which are used to form notches to facilitate smooth airflow.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A ventilation and filtration mechanism for elevators, characterized in that: include: The car (1) has a top plate (3) installed at the upper end of the car (1). The middle part of the top plate (3) protrudes upward and forms an internal cavity (31). Two sets of air cavities (7) are formed around the outer side of the top plate (3), namely the first air cavity and the second air cavity. A grille (6) is provided between the two sets of air cavities (7) and the cavity (31). A flow passage (4) is provided between the first air cavity and the second air cavity, and a ventilation assembly (8) is provided in the flow passage (4). The ventilation assembly (8) includes: A ventilation shell (81) is fixedly installed in the flow channel (4). An air inlet mesh plate (83) is provided on one side of the ventilation shell (81), and an air outlet mesh plate (810) is provided on the other side of the ventilation shell (81). The ventilation housing (81) is provided with a first filter assembly (86), a second filter assembly (87), and a third filter assembly (89) in sequence. A fan (88) is installed inside the ventilation housing (81).

2. The ventilation and filtration mechanism for elevators according to claim 1, characterized in that: The ventilation housing (81) is provided with a first valve plate (84), the first valve plate (84) is provided with a first vent hole, and the first valve plate (84) is provided with a first valve body (85).

3. The ventilation and filtration mechanism for elevators according to claim 2, characterized in that: The ventilation housing (81) is provided with a second valve plate (815), the second valve plate (815) is provided with a second vent hole, and the second valve plate (815) is provided with a second valve body.

4. The ventilation and filtration mechanism for elevators according to claim 3, characterized in that: The ventilation shell (81) is provided with a ventilation plate (811) at its upper end. The ventilation plate (811) is provided with a first air vent (814). The first air vent (814) is connected to the interior of the ventilation shell (81). The ventilation plate (811) is provided with a top shell (812) at its upper end. The top shell (812) is provided with a ventilation opening (813). The ventilation opening (813) is connected to the first air vent (814).

5. The ventilation and filtration mechanism for elevators according to claim 4, characterized in that: A third valve body is provided inside the vent (813).

6. The ventilation and filtration mechanism for elevators according to claim 5, characterized in that: A partition (817) is provided between the second valve plate (815) and the fan (88), and an exhaust chamber is formed between the partition (817) and the second valve plate (815). A second air outlet (816) communicating with the exhaust chamber is provided on the ventilation plate (811).

7. A ventilation and filtration mechanism for elevators according to claim 6, characterized in that: There is a gap between the ventilation plate (811) and the top shell (812) for airflow to pass through.

8. The ventilation and filtration mechanism for elevators according to claim 1, characterized in that: Side covers (2) are provided at the upper ends of both the first and second air cavities.

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