Adjustable ventilation valve of rail transit platform door

Abstract

The utility model relates to the technical field of rail transit, in particular to an adjustable ventilation valve of a rail transit platform door, which comprises a fixed frame, a sliding frame and a driving mechanism, and the fixed frame is provided with a first ventilation area; a second ventilation area is arranged on the sliding frame along the fixed frame, a ventilation channel is formed in an overlapping area of the first ventilation area and the second ventilation area, and the position of the second ventilation area changes along with sliding of the sliding frame, so that the size of the ventilation channel is adjusted; the driving mechanism is connected with the sliding frame and used for driving the sliding frame to slide. According to the adjustable ventilation valve of the rail transit platform door, the ventilation quantity of the platform side and the rail side of a subway station can be adjusted, and then the temperature is adjusted, so that the energy consumption of relevant platform environmental control equipment can be reduced, and the purpose of saving energy is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to an adjustable ventilation valve for a rail transportation platform door. Background Art

[0002] At present, platform doors are widely used in urban rail transit. The main function of platform doors is to separate the subway driving area from the platform waiting area. Platform doors can provide a relatively quiet and comfortable waiting environment for subway stations. Due to the separation of platform doors, the heat of the track area is isolated, which reduces the cooling and heating load of the subway environmental control system in the summer and winter air-conditioning seasons, and reduces the energy consumption for the operation of the subway environmental control system. In other months of the non-air-conditioning season, the subway driving area and the platform waiting area need to be ventilated by fans, so the platform doors need to be installed with adjustable ventilation systems. In order to meet the sealing requirements of the platform in the air-conditioning season and the ventilation requirements in the non-air-conditioning season, and also to meet the quality requirements of circulating air under ventilation conditions, an adjustable ventilation system is set on the upper part of the platform door to ensure the waiting environment of the platform waiting area.

[0003] Most of the ventilation valves of the existing platform door ventilation system use blade deflection control to control the air circulation between the subway driving area and the platform waiting area. However, the blade deflection method is difficult to accurately control the size of the air flow channel. At the same time, due to the fixed connection method of the deflection blades, the pressure-bearing capacity of the entire blade device is small and it is easy to deform. Therefore, it is necessary to optimize the blade structure of the platform door adjustable ventilation valve. Utility Model Content

[0004] In order to solve the problem that the existing blade-type adjustable ventilation valve in the prior art is easy to deform, the utility model provides an adjustable ventilation valve for a rail transit platform door with high structural strength.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An adjustable ventilation valve for a rail transit platform door, comprising:

[0007] A fixed frame, wherein the fixed frame has a first ventilation area;

[0008] A sliding frame, wherein the sliding frame is provided with a second ventilation area along the fixed frame, the overlapping area of ​​the first ventilation area and the second ventilation area forms a ventilation channel, and the position of the second ventilation area changes with the sliding of the sliding frame, thereby realizing the adjustment of the size of the ventilation channel;

[0009] The driving mechanism is connected to the sliding frame and is used to drive the sliding frame to slide.

[0010] Furthermore, a plurality of first blades are fixed on the fixed frame, and the first ventilation area is provided on at least one side of the first blade.

[0011] Furthermore, the first blades are evenly distributed on the fixed frame.

[0012] Furthermore, a plurality of second blades are fixed on the sliding frame, and the second ventilation area is provided on at least one side of the second blade.

[0013] Furthermore, the second blades are evenly distributed on the sliding frame.

[0014] Furthermore, the first blade and the second blade are parallel to each other.

[0015] Furthermore, the first blade and the second blade are in close contact with each other. In this way, air can only pass through the ventilation passage, and will not pass through the first blade and the second blade, thus not causing air turbulence or even generating noise.

[0016] Furthermore, the driving mechanism includes an electric cylinder, and a push rod of the electric cylinder is connected to the sliding frame.

[0017] Furthermore, a hinge seat is fixed on the fixed frame, the cylinder body of the electric cylinder is hinged on the hinge seat, a connecting plate is fixed on the sliding frame, the connecting plate has a hinge head, and the fixed frame is provided with a through hole for the hinge head to pass through the fixed frame and be hinged to the push rod.

[0018] Furthermore, the electric cylinder is arranged above the fixed frame.

[0019] Beneficial effect: The adjustable ventilation valve of the rail transit platform door of the utility model can adjust the ventilation volume on the platform side and the track side of the subway station, and then adjust the temperature, thereby reducing the energy consumption of related platform environmental control equipment to achieve the purpose of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A three-dimensional structural schematic diagram of an adjustable ventilation valve of a rail transit platform door with the ventilation channel fully open;

[0022] Figure 2 A three-dimensional structural diagram of an adjustable ventilation valve of a rail transit platform door in a fully closed state of the ventilation channel;

[0023] Figure 3 A three-dimensional structural diagram of an adjustable ventilation valve of a rail transit platform door with a partially opened ventilation channel;

[0024] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0025] Figure 5 A front view of an adjustable ventilation valve of a rail transit platform door with a partially opened ventilation channel;

[0026] Figure 6 for Figure 5 Sectional view along BB;

[0027] Figure 7 It is a structural schematic diagram of a fixed frame;

[0028] Figure 8 It is a structural schematic diagram of the sliding frame.

[0029] 1. Fixed frame, 11. First ventilation area, 12. First blade, 13. Through hole, 14. Slide rail 2. Sliding frame, 21. Second ventilation area, 22. Second blade, 3. Ventilation channel, 4. Electric cylinder, 41. Push rod, 5. Articulated seat, 6. Connecting plate, 7. Articulated head. DETAILED DESCRIPTION

[0030] 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. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0033] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0034] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0035] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0036] like Figures 1 to 8 , is an adjustable ventilation valve for a rail transit platform door of the utility model, comprising a fixed frame 1, a sliding frame 2 and a driving mechanism, the fixed frame 1 having a first ventilation area 11; the sliding frame is provided with a second ventilation area 21 along the fixed frame 1, the overlapping area of ​​the first ventilation area 11 and the second ventilation area 21 forms a ventilation channel 3, the second ventilation area 21 changes position as the sliding frame 2 slides, thereby realizing the adjustment of the size of the ventilation channel 3; the driving mechanism is connected to the sliding frame 2, and is used to drive the sliding frame 2 to slide.

[0037] A plurality of first blades 12 are fixed on the fixed frame 1 , and a first ventilation area 11 is provided on at least one side of the first blade 12 . The first blades 12 are evenly distributed on the fixed frame 1 .

[0038] A plurality of second blades 22 are fixed on the sliding frame 2, and at least one side of the second blade 22 is provided with a second ventilation area 21. The second blades 22 are evenly distributed on the sliding frame 2.

[0039] like Figure 6 The first blade 12 and the second blade 22 are parallel to each other. The first blade 12 and the second blade 22 are in close contact.

[0040] The driving mechanism includes an electric cylinder 4, and a push rod 41 of the electric cylinder 4 is connected to the sliding frame 2. A hinge seat 5 is fixed on the fixed frame 1, and the cylinder body of the electric cylinder 4 is hinged on the hinge seat 5. A connecting plate 6 is fixed on the sliding frame, and a hinge head 7 is provided on the connecting plate 6. A through hole 13 is provided on the fixed frame 1 for the hinge head 7 to be hinged with the push rod 41 after passing through the fixed frame 1. The sliding frame 2 can also slide in the horizontal direction or in the vertical direction. In this embodiment, the sliding frame 2 slides in the horizontal direction. Specifically, a slide rail 14 for the sliding frame 2 to slide is provided on the fixed frame 1, and the electric cylinder 4 is arranged above the fixed frame 1. As an implementation mode, the adjustable ventilation valve is installed on the upper part of the platform door, specifically, between the column frames in the top box of the platform door. The utility model realizes the air exchange between the track driving area and the platform waiting area through the control of the adjustable ventilation valve. At the same time, considering the economy, the push rod 41 of the electric cylinder 4 pushes the sliding frame 2 to slide on the slide rail, so that the first blade 12 and the second blade 22 are offset to form a ventilation channel 3, and the opening size of the ventilation channel 3 can be controlled by the pushing stroke of the electric cylinder 4, thereby adjusting the ventilation volume.

[0041] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An adjustable ventilation valve for a rail transit platform door, characterized in that: include: A fixed frame (1), wherein the fixed frame (1) has a first ventilation area (11); A sliding frame (2), wherein the sliding frame is provided with a second ventilation area (21) along the fixed frame (1), the overlapping area of ​​the first ventilation area (11) and the second ventilation area (21) forms a ventilation channel (3), and the position of the second ventilation area (21) changes with the sliding of the sliding frame (2), thereby realizing the adjustment of the size of the ventilation channel (3); A driving mechanism is connected to the sliding frame (2) and is used to drive the sliding frame (2) to slide.

2. The adjustable ventilation valve for a rail transit platform door according to claim 1, characterized in that: A plurality of first blades (12) are fixed on the fixed frame (1), and the first ventilation area (11) is provided on at least one side of the first blade (12).

3. The adjustable ventilation valve for a rail transit platform door according to claim 2, characterized in that: The first blades (12) are evenly distributed on the fixed frame (1).

4. The adjustable ventilation valve for a rail transit platform door according to claim 2, characterized in that: A plurality of second blades (22) are fixed on the sliding frame (2), and at least one side of the second blade (22) is provided with the second ventilation area (21).

5. The adjustable ventilation valve for a rail transit platform door according to claim 4, characterized in that: The second blades (22) are evenly distributed on the sliding frame (2).

6. The adjustable ventilation valve for a rail transit platform door according to claim 4, characterized in that: The first blade (12) and the second blade (22) are parallel to each other.

7. The adjustable ventilation valve for a rail transit platform door according to claim 4, characterized in that: The first blade (12) and the second blade (22) are in close contact.

8. The adjustable ventilation valve for a rail transit platform door according to claim 1, characterized in that: The driving mechanism comprises an electric cylinder (4), and a push rod (41) of the electric cylinder (4) is connected to the sliding frame (2).

9. The adjustable ventilation valve for a rail transit platform door according to claim 8, characterized in that: A hinge seat (5) is fixed on the fixed frame (1), the cylinder body of the electric cylinder (4) is hinged on the hinge seat (5), a connecting plate (6) is fixed on the sliding frame, the connecting plate (6) has a hinge head (7), and a through hole (13) is provided on the fixed frame (1) for the hinge head (7) to pass through the fixed frame (1) and be hinged to the push rod (41).

10. The adjustable ventilation valve for a rail transit platform door according to claim 9, characterized in that: The electric cylinder (4) is arranged above the fixed frame (1).

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