Lifting staggered type primary filtering device for station fresh air duct

Abstract

The utility model discloses a lifting staggered primary filtering device for a station fresh air duct, which is provided with a rectangular outer frame, a fixed filter screen is arranged at the lower part in the outer frame, and the height of the fixed filter screen is half of the height of a frame inner hole of the outer frame; vertical sliding grooves are further formed in the inner side walls of the two sides of the outer frame, movable filter screens are arranged in the vertical sliding grooves, the movable filter screens and the fixed filter screens are arranged in a front-back staggered mode, and a lifting mechanism is further arranged at the position, located at the top of the outer frame, over the movable filter screens. The station fresh air filtering device is applied to a station fresh air duct and used for filtering fresh air, the whole device is novel in structural design, the good fresh air filtering effect is achieved, meanwhile, the filter screen located at the high position can be lifted, safe and convenient cleaning, replacing and overhauling operation is achieved, practicability is greatly improved, and the service life of the device is prolonged. And the method has very good economic value and practical popularization value.

Description

Technical Field

[0001] The utility model relates to the technical field of large-scale ventilation equipment in public places, in particular to a lifting and staggered primary filtering device for a new air duct of a station. Background Art

[0002] Ventilation is very important in large public places such as stations and hospitals, because these places are usually crowded with people, and the various bacteria and germs in the air are mixed and very complicated. If the air circulation is not smooth, it will make people inside feel uncomfortable. On the other hand, a large number of people gather in the air, and the bacteria and germs will also gather in large numbers, which will accelerate the spread of germs and is not good for people's health. Therefore, ventilation facilities will be designed in these large occasions, which will involve the setting of fresh air ducts. Traditional fresh air ducts adopt the form of ventilation fans and air ducts. The fresh air is directly introduced or exported into the space through the ventilation fans to achieve air circulation. However, the fresh air is usually mixed with a variety of debris and impurities. If it is directly introduced without filtering, there will be certain problems. Therefore, filtering devices are currently designed in many fresh air ducts. After these filtering devices have been used for a long time, a large amount of debris will usually remain on the filter screen, affecting the circulation of air through it. These air ducts are usually designed at a higher position, and it is troublesome to clean or replace them during high-altitude operations, posing a safety hazard. Utility Model Content

[0003] The purpose of the utility model is to provide a lifting and staggered primary filtering device for the fresh air duct of the station in view of the above situation. The device adopts a staggered liftable primary filtering structure, which not only meets the problem of fresh air duct filtering, but also can achieve better cleaning and replacement requirements.

[0004] The specific scheme of the utility model is: a lifting and staggered primary filtering device for a station fresh air duct, comprising a rectangular outer frame, a fixed filter screen being installed at the lower part of the outer frame, and a height of the fixed filter screen accounting for half of the height of an inner hole of the outer frame; vertical slide grooves are also arranged on the inner side walls on both sides of the outer frame, and a movable filter screen is arranged in the vertical slide grooves, and the movable filter screen and the fixed filter screen are staggered front and back, and when the two are unfolded, they cover the entire inner hole of the outer frame, and a lifting mechanism is also arranged at the top of the outer frame just above the movable filter screen, and the lifting mechanism is hoisted and connected to the movable filter screen and pulls the movable filter screen to move up and down along the vertical slide groove.

[0005] Furthermore, the fixed filter screen and the movable filter screen described in the utility model have the same structure and both have a mesh frame made of aluminum alloy, in which a number of cells are distributed, and a filter screen is arranged in each cell; a lower buckle windshield plate is provided on one side of the top of the mesh frame of the fixed filter screen, and an upper buckle windshield plate is provided on one side of the lower edge of the mesh frame of the movable filter screen, and when the upper buckle windshield plate and the lower buckle windshield plate are engaged with each other, the fixed filter screen and the movable filter screen can fully seal the holes in the frame of the external frame.

[0006] Furthermore, the filter screen described in the utility model is composed of a fine-pore steel wire mesh or a breathable filter membrane.

[0007] Furthermore, the lifting mechanism described in the utility model comprises a mechanism box body, a winding shaft is horizontally arranged in the mechanism box body, two lifting steel ropes are wound on the winding shaft, one end of the lifting steel rope is fixed on the winding shaft, and the other end of the lifting steel rope is connected to the top of the movable filter screen; a driven gear is also installed at one end of the winding shaft, and a lifting motor is also installed in the mechanism box body, and the output end of the lifting motor is transmission-connected with a driving gear, and the driving gear is meshingly connected with the driven gear.

[0008] Furthermore, guide wheel mechanisms are provided at symmetrical positions on the side walls of both sides of the movable filter screen in the utility model, and the guide wheel mechanisms on both sides are guided and moved along the corresponding vertical slide grooves.

[0009] Furthermore, the guide wheel mechanism described in the utility model has a channel steel mounting block, which is fixed on the two side walls of the movable filter screen. The channel steel mounting block is provided with an inner groove guide wheel and an outer groove wall guide wheel, wherein the inner groove guide wheel rolls and guides along the inner side wall of the vertical slide groove, and the outer groove wall guide wheel rolls and guides along the outer side walls on both sides of the mouth of the vertical slide groove.

[0010] Furthermore, the outer frame in the utility model is a rectangular frame structure assembled by upper and lower horizontal plates and left and right vertical plates.

[0011] Furthermore, the vertical slide groove in the utility model is composed of two stainless steel profiles with square cross-sections, and the two stainless steel profiles are arranged side by side to form a slide groove structure therebetween.

[0012] The utility model is used in the fresh air duct of the station to filter the fresh air. The whole equipment structure is novel in design. While meeting the better filtering effect for the fresh air, the filter screen in a high position can be raised and lowered to realize safe and convenient cleaning, replacement and maintenance operations. The practicality is greatly improved, and it has very good economic value and practical promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main viewing direction structure of the utility model;

[0015] Figure 3 yes Figure 2 Schematic diagram of the structure in the AA direction;

[0016] Figure 4 yes Figure 3 A magnified schematic diagram of the structure at K in the middle;

[0017] Figure 5 yes Figure 2 Schematic diagram of the structure in the middle BB direction;

[0018] Figure 6 yes Figure 5 A magnified schematic diagram of the structure at H in the middle;

[0019] Figure 7 It is a schematic diagram of the structure of the utility model in the exploded state.

[0020] In the figure: 1—movable filter, 2—vertical slide, 3—vertical plate, 4—fixed filter, 5—horizontal plate, 6—lifting mechanism, 7—driven gear, 8—hoisting motor, 9—lower buckle wind shield, 10—upper buckle wind shield, 11—unit cell, 12—stainless steel profile, 13—inner guide wheel of groove, 14—outer wall guide wheel of groove, 15—channel steel mounting block, 16—mechanism box body, 17—winding shaft, 18—driving gear, 19—guide wheel mechanism, 20—hoisting wire rope. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings of the utility model to clearly and completely describe the technical solution of the utility model. It is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model. In the description of the utility model, it should be noted that the terms "upper", "lower", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when used, which is only for the convenience of describing the utility model or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1 to Figure 7 The utility model is a lifting and staggered primary filtering device for the fresh air duct of a station, which has a rectangular outer frame. Furthermore, the outer frame in the utility model is a rectangular frame structure assembled by upper and lower horizontal plates 5 and left and right vertical plates 3. A fixed filter screen 4 is installed at the lower part of the outer frame, and the height of the fixed filter screen accounts for half of the height of the inner hole of the outer frame; vertical slide grooves 2 are also arranged on the inner side walls on both sides of the outer frame, and a movable filter screen 1 is arranged in the vertical slide groove. The movable filter screen and the fixed filter screen are staggered front and back, and when the two are unfolded, they cover the entire inner hole of the outer frame. A lifting mechanism 6 is also arranged at the top of the outer frame just above the movable filter screen, and the lifting mechanism is hoisted and connected with the movable filter screen and pulls the movable filter screen to move up and down along the vertical slide groove.

[0024] Furthermore, the fixed filter screen and the movable filter screen described in the utility model have the same structure and both have a mesh frame made of aluminum alloy, in which a plurality of cells 11 are distributed, and a filter screen is arranged in each cell; a lower buckle windshield plate 9 is provided on one side of the top of the mesh frame of the fixed filter screen, and an upper buckle windshield plate 10 is provided on one side of the lower edge of the mesh frame of the movable filter screen, and when the upper buckle windshield plate and the lower buckle windshield plate are engaged with each other, the fixed filter screen and the movable filter screen can fully seal the inner holes of the external frame.

[0025] Furthermore, the filter screen in the utility model is composed of a fine-mesh steel wire mesh or a breathable filter membrane. Furthermore, the vertical chute in the utility model is composed of two stainless steel profiles 12 with square cross-sections, which are arranged side by side and form a chute structure between them.

[0026] Furthermore, the lifting mechanism described in this embodiment has a mechanism box body 16, in which a winding shaft 17 is horizontally arranged, and two lifting wire ropes 20 are wound on the winding shaft, one end of the lifting wire rope is fixed on the winding shaft, and the other end of the lifting wire rope is connected to the top of the movable filter net; one end of the winding shaft is also equipped with a driven gear 7, and the mechanism box body is also equipped with a lifting motor 8, and the output end of the lifting motor is transmission-connected to a driving gear 18, and the driving gear is meshingly connected with the driven gear.

[0027] Furthermore, guide wheel mechanisms 19 are provided at symmetrical positions on the side walls of the movable filter screen in this embodiment, and the guide wheel mechanisms on both sides guide and move along the corresponding vertical slide grooves.

[0028] Furthermore, the guide wheel mechanism described in the utility model has a channel steel mounting block 15, which is fixed on the side walls of the movable filter screen. The channel steel mounting block is provided with an inner groove guide wheel 13 and an outer groove wall guide wheel 14, wherein the inner groove guide wheel rolls and guides along the inner side wall of the vertical slide groove, and the outer groove wall guide wheel rolls and guides along the outer side walls on both sides of the mouth of the vertical slide groove.

[0029] When the utility model is used, the specific operation is as follows: first install it, install the outer frame in the fresh air duct, install the corresponding vertical slide groove, fixed filter screen and movable filter screen in the hollow of the outer frame, connect the lifting mechanism above the movable filter screen, and when in normal use, lift the movable filter screen to the top by lifting wire rope, so that the fixed filter screen and the movable filter screen seal the inner holes of the entire outer frame, and when the fresh air passes through, it is filtered through the filter screen of each cell; when it needs to be cleaned after being used for a long time, first lower the movable filter screen to the lowest position by the lifting motor, rinse the filter screen, and then lift it up, and then rinse the fixed filter screen below, and the whole operation basically does not need to be done at high altitude, and the safety is guaranteed.

[0030] The utility model is used in the fresh air duct of the station to filter the fresh air. The whole equipment structure is novel in design. While meeting the better filtering effect for the fresh air, the filter screen in a high position can be raised and lowered to realize safe and convenient cleaning, replacement and maintenance operations. The practicality is greatly improved, and it has very good economic value and practical promotion value.

Claims

1. A lifting and staggered primary filter device for station fresh air duct, having a rectangular outer frame, characterized in that: A fixed filter is installed at the lower part of the outer frame, and the height of the fixed filter accounts for half of the height of the inner hole of the outer frame; vertical slide grooves are also provided on the inner walls on both sides of the outer frame, and a movable filter is provided in the vertical slide grooves. The movable filter and the fixed filter are staggered front and back, and when the two are unfolded, they cover the entire inner hole of the outer frame. A lifting mechanism is also provided at the top of the outer frame just above the movable filter, and the lifting mechanism is hoisted and connected to the movable filter and pulls the movable filter to move up and down along the vertical slide groove.

2. The lifting and staggered primary filtering device for the station fresh air duct according to claim 1 is characterized in that: The fixed filter and the movable filter have the same structure and both have a mesh frame made of aluminum alloy, in which a plurality of cells are distributed, and each cell is provided with a filter; a lower buckle windshield is provided on one side of the top of the mesh frame of the fixed filter, and an upper buckle windshield is provided on one side of the lower edge of the mesh frame of the movable filter, and when the upper buckle windshield and the lower buckle windshield are engaged with each other, the fixed filter and the movable filter can fully seal the inner holes of the external frame.

3. The lifting and staggered primary filtering device for the station fresh air duct according to claim 2 is characterized in that: The filter screen is composed of a fine-pore steel wire screen or a breathable filter membrane.

4. The lifting and staggered primary filtering device for station fresh air duct according to claim 1 is characterized in that: The lifting mechanism comprises a mechanism box body, in which a winding shaft is horizontally arranged, two lifting steel wire ropes are wound on the winding shaft, one end of the lifting steel wire rope is fixed on the winding shaft, and the other end of the lifting steel wire rope is connected to the top of the movable filter screen; one end of the winding shaft is also provided with a driven gear, and the mechanism box body is also provided with a lifting motor, and the output end of the lifting motor is transmission-connected with a driving gear, and the driving gear is meshingly connected with the driven gear.

5. The lifting and staggered primary filtering device for the station fresh air duct according to claim 1 is characterized in that: Guide wheel mechanisms are also arranged at symmetrical positions on the side walls of both sides of the movable filter screen, and the guide wheel mechanisms on both sides are guided and moved along the corresponding vertical slide grooves.

6. The lifting and staggered primary filtering device for the station fresh air duct according to claim 5 is characterized in that: The guide wheel mechanism comprises a channel steel mounting block, which is fixed on the two side walls of the movable filter screen. The channel steel mounting block is provided with an inner groove guide wheel and an outer groove wall guide wheel, wherein the inner groove guide wheel rolls and guides along the inner side wall of the vertical slide groove, and the outer groove wall guide wheel rolls and guides along the outer side walls on both sides of the mouth of the vertical slide groove.

7. The lifting and staggered primary filtering device for station fresh air duct according to claim 1 is characterized in that: The outer frame is a rectangular frame structure assembled by upper and lower horizontal plates and left and right vertical plates.

8. The lifting and staggered primary filtering device for station fresh air duct according to claim 1 is characterized in that: The vertical slide groove is composed of two stainless steel profiles with square cross-sections. The two stainless steel profiles are arranged side by side and a slide groove structure is formed between the two.

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