Elevator ventilation structure

The elevator ventilation structure through the negative pressure fan actively ventilating, brush cleaning and filtering of the filter, solves the problem of dust filtration in the elevator, keeping the air clean and the ventilation volume stable.

CN223121608UActive Publication Date: 2025-07-18ANHUI YUNMAN ELECTROMECHANICAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422356104.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-07-18
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

The existing elevator ventilation structure cannot effectively filter dust, resulting in a decrease in air quality and a decrease in ventilation volume.

Method used

An elevator ventilation structure including a negative pressure fan, a dustproof net, a mobile scraper and a filter is designed. The negative pressure fan is actively ventilated, and the dustproof net is cleaned by a blow brush, and the filter is filtered to ensure the air is clean.

Benefits of technology

Effectively filter dust, keep the air in the elevator clean, prevent the ventilation structure from being blocked, and ensure normal air flow.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223121608U_ABST
    Figure CN223121608U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of elevators, in particular to an elevator ventilation structure which comprises an elevator car and two sets of symmetrically-distributed installation frames located at the bottom of the elevator car, an installation box is fixedly installed above the elevator car, and installation frames are fixedly installed between the two sets of installation frames and the elevator car. A cleaning mechanism used for ventilation in the lift car is arranged between the mounting frame and the mounting frame, and a dust removal mechanism used for filtering dust in air is arranged in the mounting box. The cleaning mechanism comprises a negative pressure fan installed on the installation frame and a dustproof net fixedly installed on the installation frame. Dustproof protection of the negative pressure fan is achieved through the arranged cleaning mechanism, cleaning of the dustproof net is achieved through the arranged moving frame and the arranged scraping brush, and air flow reduction caused by the fact that the dustproof net is blocked by dust is reduced. And meanwhile, impurities such as dust contained in the air in the air circulation process are filtered through the arranged dust removal mechanism, and the air in the lift car is kept clean.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator ventilation structure. Background Art

[0002] An elevator is a power-driven electromechanical device that uses a box running on rigid guide rails or steps running along a fixed route to lift or lower or transport people or goods in parallel. An elevator is generally composed of four major parts: a machine room, a hoistway, a car, and a landing. The system functions of an elevator usually include eight systems, namely the traction system, guide system, car system, door system, weight balance system, drive system, control system, and safety protection system. The elevator cars commonly used currently have certain ventilation structures.

[0003] The ventilation structure helps to circulate air in the elevator and keep the air fresh. However, when the outside air circulates inward, it contains dust and other impurities and enters the elevator car, which reduces the air quality in the elevator car. The existing ventilation structure does not have good filtering measures for impurities such as dust, and during long-term use, the dust in the air adheres to the ventilation structure and also affects the ventilation volume of the ventilation structure. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides an elevator ventilation structure, which solves the problems raised by the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solutions: an elevator ventilation structure, comprising a car, and two sets of symmetrically distributed installation frames located at the bottom of the car, an installation box is fixedly installed above the car, and installation frames are fixedly installed between the two sets of installation frames and the car, and a cleaning mechanism for ventilation in the car is provided between the installation frame and the installation frame, and a dust removal mechanism for filtering dust in the air is provided in the installation box;

[0008] The cleaning mechanism includes a negative pressure fan installed on a mounting frame, and a dustproof net fixedly installed on the mounting frame. The dust removal mechanism includes two groups of fixed frames symmetrically installed in the mounting box and arranged at an angle, and filters are installed on the fixed frames. A driven wheel is sleeved on the negative pressure fan, and a driving wheel rotatably connected to the mounting frame is provided on the mounting frame. A belt is provided on the mounting frame, and the belt is respectively connected to the corresponding driving wheel and driven wheel for transmission.

[0009] Preferably, the cleaning mechanism also includes a movable frame slidably connected to the mounting frame, and a scraper brush is slidably mounted on the movable frame, the scraper brush is fitted with the dustproof net, a slider is fixedly mounted on the scraper brush, a sliding rod is provided in the movable frame, and the slider is slidably sleeved with the sliding rod, a first spring is sleeved on the sliding rod, and the two ends of the first spring are respectively fixedly connected to the sliding rod and the sliding rod and the movable frame, a first cam is rotatably mounted on the movable frame, and the first cam is fitted with the slider.

[0010] Preferably, two groups of symmetrically distributed screw rods are provided in the installation frame, and the two ends of the two groups of screw rods respectively pass through the installation frame and are rotatably connected to the installation frame, and the two groups of screw rods respectively pass through the two ends of the moving frame and are threadedly connected to the moving frame, and the right ends of the two groups of screw rods are both sleeved with the first synchronous wheels, and the first synchronous belt is provided in the installation frame, and the first synchronous belt is respectively connected to the two groups of first synchronous wheels for transmission.

[0011] Preferably, the installation box is embedded with a filter frame, and the two groups of fixed frames are symmetrically distributed about the filter frame. Both groups of fixed frames are provided with support rods, and the second springs are sleeved on the support rods. The filter is slidably connected to the fixed frame, and the filter is slidably connected to the support rods. The two ends of the second spring are respectively fixedly connected to the filter and the fixed frame. Two groups of second cams are rotatably installed on the fixed frame, and the second cams are in contact with the filter.

[0012] Preferably, two groups of symmetrically distributed dust removal ports are opened at the bottom of the installation box, and the two groups of dust removal ports are located outside the car, two groups of symmetrically distributed scraper rods are arranged in the installation box, and the two groups of scraper rods are slidingly connected to the installation box, and two groups of symmetrically distributed bidirectional screws are arranged in the installation box, and the left ends of the two groups of bidirectional screws are both sleeved with second synchronous wheels, and a second synchronous belt is arranged in the installation box, and the second synchronous belt is respectively connected to the two groups of second synchronous wheels for transmission.

[0013] Preferably, both ends of the two groups of bidirectional screws pass through the installation box and are rotatably connected to the installation box, and both ends of the two groups of bidirectional screws pass through the two groups of scraper rods and are threadedly connected to the two groups of scraper rods.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides an elevator ventilation structure, which has the following beneficial effects:

[0016] The active ventilation inside the elevator car is achieved by the set negative pressure fan in cooperation with the openings on both sides of the installation box. The dust-proof protection of the negative pressure fan is realized by the set cleaning mechanism, and the cleaning of the dust-proof net is achieved by the set moving frame and brush, reducing the decrease in air flow caused by dust clogging the dust-proof net. At the same time, the filtering of dust and other impurities contained in the air during the air flow process is realized by the set dust removal mechanism, keeping the air inside the car clean. At the same time, the automatic cleaning of the dust attached to the filter screen is achieved by the set second cam in cooperation with the scraping rod, etc., maintaining the cleanliness of the air flow and avoiding the blockage of the filter screen, which affects the normal rate of air circulation inside the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the car of the present utility model;

[0020] Figure 3 is a schematic diagram of the structure of the cleaning mechanism of the present utility model;

[0021] Figure 4 is the present utility model Figure 3 Schematic enlarged view of the structure at A in;

[0022] Figure 5 is a schematic diagram of the structure of the brush of the present utility model;

[0023] Figure 6 is a schematic diagram of the structure of the dust removal mechanism of the present utility model.

[0024] In the figure: 1, car; 2, installation frame; 3, installation rack; 4, installation box; 5, dust removal port; 6, filter screen frame; 7, cleaning mechanism; 701, negative pressure fan; 702, driven wheel; 703, driving wheel; 704, belt; 705, dust-proof net; 706, moving frame; 707, brush; 708, slider; 709, slide bar; 710, first spring; 711, first cam; 712, lead screw; 713, first synchronous wheel; 714, first synchronous belt; 8, dust removal mechanism; 801, fixed frame; 802, filter net; 803, support rod; 804, second spring; 805, second cam; 806, bidirectional screw; 807, second synchronous wheel; 808, second synchronous belt; 809, scraping rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will describe the implementation manners of the present application in detail in conjunction with the accompanying drawings and embodiments, so as to fully understand how the present application uses technical means to solve technical problems and achieve the implementation process of technical effects and implement accordingly.

[0026] Figures 1-6 As an embodiment of the present invention, an elevator ventilation structure includes a car 1 and two sets of symmetrically distributed mounting frames 2 located at the bottom of the car 1. An installation box 4 is fixedly installed above the car 1. Installation frames 3 are fixedly installed between the two sets of mounting frames 2 and the car 1. A cleaning mechanism 7 for ventilating the inside of the car 1 is provided between the installation frame 3 and the mounting frame 2. An air dust removal mechanism 8 for filtering dust in the air is provided in the installation box 4. The cleaning mechanism 7 includes a negative pressure fan 701 installed on the installation frame 3 and a dust-proof net 705 fixedly installed on the mounting frame 2. The dust removal mechanism 8 includes two sets of fixed frames 801 symmetrically installed and inclined in the installation box 4, and a filter screen 802 is installed on the fixed frame 801. A driven wheel 702 is sleeved on the negative pressure fan 701. A driving wheel 703 rotatably connected to the installation frame 3 is provided on the installation frame 3. A belt 704 is provided on the installation frame 3, and the belt 704 is respectively in transmission connection with the corresponding driving wheel 703 and the driven wheel 702. The active ventilation of the elevator car 1 is realized by the negative pressure fan 701 provided in cooperation with the openings on both sides of the installation box 4. The dust-proof protection of the negative pressure fan 701 is realized by the cleaning mechanism provided. The cleaning of the dust-proof net 705 is realized by the moving frame 706 and the brush 707 provided, reducing the decrease in air flow caused by dust clogging the dust-proof net 705.

[0027] In this embodiment, with reference to Figure 3 、 Figure 4 、 Figure 5As shown, the cleaning mechanism 7 further includes a moving frame 706 slidably connected to the mounting frame 2. A brush 707 is slidably mounted on the moving frame 706. The brush 707 is in contact with the dust-proof net 705. A slider 708 is fixedly mounted on the brush 707. A slide bar 709 is provided in the moving frame 706. The slider 708 is slidably sleeved on the slide bar 709. A first spring 710 is sleeved on the slide bar 709. The two ends of the first spring 710 are respectively fixedly connected to the slider 708 and the moving frame 706. A first cam 711 is rotatably mounted on the moving frame 706. The first cam 711 is in contact with the slider 708. Two groups of symmetrically distributed lead screws 712 are provided in the mounting frame 2. The two ends of the two groups of lead screws 712 respectively penetrate through the mounting frame 2 and are rotatably connected to the mounting frame 2. The two groups of lead screws 712 respectively penetrate through the two ends of the moving frame 706 and are respectively threadedly connected to the moving frame 706. First synchronous wheels 713 are sleeved on the right ends of the two groups of lead screws 712. A first synchronous belt 714 is provided in the mounting frame 2. The first synchronous belt 714 is respectively in transmission connection with the two groups of first synchronous wheels 713. The dust-proof net 705 mounted on the mounting frame 2 plays a certain dust-proof protection role for the negative pressure fan 701. After using for a period of time, start the motor to drive the lead screw 712 to rotate. Under the limiting action of the mounting frame 2, the moving frame 706 drives the brush 707 to move. During the movement, start the motor to drive the first cam 711 to rotate. Cooperating with the first spring 710, the brush 707 vibrates up and down to complete the cleaning of the dust-proof net 705, and cooperate with the filter screen 802 to maintain the normal air circulation volume in the car 1.

[0028] In this embodiment, referring to Figure 2 and Figure 6As shown, a filter rack 6 is embedded in the installation box 4. Two sets of fixing frames 801 are symmetrically distributed with respect to the filter rack 6. Support rods 803 are provided on both sets of fixing frames 801, and a second spring 804 is sleeved on the support rod 803. The filter screen 802 is slidably connected to the fixing frame 801 and is also slidably connected to the support rod 803. The two ends of the second spring 804 are fixedly connected to the filter screen 802 and the fixing frame 801 respectively. Two sets of second cams 805 are rotatably installed on the fixing frame 801, and the second cams 805 are in contact with the filter screen 802. Two symmetrically distributed dust removal ports 5 are opened at the bottom of the installation box 4, and the two dust removal ports 5 are located outside the car 1. Two symmetrically distributed scraping rods 809 are provided in the installation box 4. Both sets of scraping rods 809 are slidably connected to the installation box 4. Two symmetrically distributed bidirectional screws 806 are provided in the installation box 4. The left ends of the two sets of bidirectional screws 806 are sleeved with second synchronous wheels 807. A second synchronous belt 808 is provided in the installation box 4, and the second synchronous belt 808 is respectively in transmission connection with the two sets of second synchronous wheels 807. The two ends of the two sets of bidirectional screws 806 respectively penetrate through the installation box 4 and are rotatably connected to the installation box 4. The two ends of the two sets of bidirectional screws 806 respectively penetrate through the two sets of scraping rods 809 and are respectively threadedly connected to the two sets of scraping rods 809. The incoming air is first filtered by the filter screen 802 installed on the fixing frame 801. The filter screen 802 filters out dust and other impurities contained in the air, maintaining the cleanliness of the flowing air. The dust and the like contained in the air adhere to the filter screen 802. The motor drives the second cam 805 to rotate to intermittently push the filter screen 802. Cooperating with the second spring 804, the filter screen 802 reciprocates on the fixing frame 801, shaking off the dust adhering to the filter screen 802 and maintaining the normal air flow rate in the pores of the filter screen 802.

[0029] During the operation of this embodiment, when the car 1 is in use, the motor is started to drive the driving wheel 703 to rotate. Under the action of the belt 704 and the driven wheel 702, the negative pressure fan 701 rotates to discharge the air in the car 1. A negative pressure is generated in the car 1, and the external air enters the car 1 from both sides of the installation box 4. The entering air is first filtered by the filter screen 802 installed on the fixed frame 801. The filter screen 802 filters out impurities such as dust contained in the air, maintaining the cleanliness of the circulating air. Dust and the like contained in the air adhere to the filter screen 802. The second cam 805 is driven by the motor to rotate to intermittently push the filter screen 802. Cooperating with the second spring 804, the filter screen 802 reciprocates on the fixed frame 801, shaking off the dust adhering to the filter screen 802 and maintaining the normal air circulation volume in the pores of the filter screen 802. At the same time, the motor is started to drive the rotation of the bidirectional screw 806. Under the action of the second synchronous belt 808 and the second synchronous pulley 807, the two groups of bidirectional screws 806 rotate synchronously, and at the same time drive the two groups of scraping rods 809 to slide in the installation box 4, scraping off the dust falling on the filter screen 802 in the installation box 4 and discharging the dust through the dust removal port 5. The dust-proof net 705 installed on the installation frame 2 plays a certain dust-proof and protective role for the negative pressure fan 701. After using for a period of time, the motor is started to drive the rotation of the lead screw 712. Under the limiting action of the installation frame 2, the moving frame 706 drives the brush 707 to move. During the movement, the motor is started to drive the rotation of the first cam 711. Cooperating with the first spring 710, the brush 707 vibrates up and down to complete the cleaning of the dust-proof net 705, and cooperate with the filter screen 802 to maintain the normal air circulation volume in the car 1.

[0030] The control method of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming of those skilled in the art. The provision of power also belongs to the common knowledge in this field. And the present utility model is mainly used to protect mechanical devices, so the control method and circuit connection of the present utility model will not be explained in detail.

[0031] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An elevator ventilation structure, comprising a car (1) and two sets of symmetrically distributed mounting frames (2) located at the bottom of the car (1), characterized in that: Above the car (1), an installation box (4) is fixedly installed. Between the two installation frames (2) and the car (1), installation brackets (3) are fixedly installed. And between the installation bracket (3) and the installation frame (2), a cleaning mechanism (7) for ventilating the interior of the car (1) is provided. Inside the installation box (4), a dust removal mechanism (8) for filtering dust in the air is provided. The cleaning mechanism (7) includes a negative pressure fan (701) installed on the installation bracket (3), and a dust-proof net (705) fixedly installed on the installation frame (2). The dust removal mechanism (8) includes two fixed frames (801) symmetrically installed in the installation box (4) and inclined. And a filter screen (802) is installed on the fixed frame (801). A driven wheel (702) is sleeved on the negative pressure fan (701). On the installation bracket (3), a driving wheel (703) rotatably connected to the installation bracket (3) is provided. On the installation bracket (3), a belt (704) is provided. And the belt (704) is respectively in transmission connection with the corresponding driving wheel (703) and driven wheel (702).

2. The elevator ventilation structure according to claim 1, characterized in that: The cleaning mechanism (7) further includes a moving frame (706) slidably connected to the installation frame (2). And a brush (707) is slidably installed on the moving frame (706). The brush (707) is in contact with the dust-proof net (705). A slider (708) is fixedly installed on the brush (707). Inside the moving frame (706), a slide rod (709) is provided. And the slider (708) is slidably sleeved on the slide rod (709). A first spring (710) is sleeved on the slide rod (709). And the two ends of the first spring (710) are respectively fixedly connected to the slider (708) and the moving frame (706). A first cam (711) is rotatably installed on the moving frame (706). And the first cam (711) is in contact with the slider (708).

3. The elevator ventilation structure according to claim 1, characterized in that: Inside the installation frame (2), two symmetrically distributed lead screws (712) are provided. The two ends of the two lead screws (712) respectively penetrate through the installation frame (2) and are rotatably connected to the installation frame (2). The two lead screws (712) respectively penetrate through the two ends of the moving frame (706) and are respectively in threaded connection with the moving frame (706). On the right ends of the two lead screws (712), first synchronous wheels (713) are sleeved. Inside the installation frame (2), a first synchronous belt (714) is provided. And the first synchronous belt (714) is respectively in transmission connection with the two first synchronous wheels (713).

4. A lift ventilation structure according to claim 1, characterized in that: A filter screen frame (6) is embedded in the installation box (4). The two fixed frames (801) are symmetrically distributed with respect to the filter screen frame (6). On both fixed frames (801), support rods (803) are provided. And a second spring (804) is sleeved on the support rod (803). The filter screen (802) is slidably connected to the fixed frame (801). And the filter screen (802) is slidably connected to the support rod (803). The two ends of the second spring (804) are respectively fixedly connected to the filter screen (802) and the fixed frame (801). Two second cams (805) are rotatably installed on the fixed frame (801). And the second cams (805) are in contact with the filter screen (802).

5. The elevator ventilation structure according to claim 1, characterized in that: The bottom of the installation box (4) is provided with two groups of symmetrically distributed dust removal openings (5), and the two groups of dust removal openings (5) are located outside the car (1). Two groups of symmetrically distributed scraping rods (809) are arranged in the installation box (4). The two groups of scraping rods (809) are both slidably connected to the installation box (4), and two groups of symmetrically distributed bidirectional screws (806) are arranged in the installation box (4). The left ends of the two groups of bidirectional screws (806) are both sleeved with second synchronous wheels (807). A second synchronous belt (808) is arranged in the installation box (4), and the second synchronous belt (808) is respectively in transmission connection with the two groups of second synchronous wheels (807).

6. The elevator ventilation structure according to claim 5, characterized in that: The two ends of the two groups of bidirectional screws (806) respectively penetrate through the installation box (4) and are rotatably connected to the installation box (4). The two ends of the two groups of bidirectional screws (806) respectively penetrate through the two groups of scraping rods (809) and are respectively in threaded connection with the two groups of scraping rods (809).