A double-leaf single-drive three-state damper

Abstract

The present invention discloses a double-leaf single-drive three-state damper, which is characterized in that it is used to realize switching between a first channel, a second channel, and a third channel, and one end of the first channel and the second channel are both connected to one end of the third channel; the double-leaf single-drive three-state damper includes: a first damper arranged at the connection between the first channel and the third channel; a second damper arranged at the connection between the second channel and the third channel; a driving device that drives the first damper and the second damper at the same time; the driving device synchronously drives the first damper to open and the second damper to close, or synchronously drives the first damper to close and the second damper to open, or synchronously drives the first damper to partially open and the second damper to partially open.

Description

Technical Field

[0001] The invention relates to the technical field of damper design, and in particular to a double-leaf single-drive three-state damper. Background Art

[0002] Air is the most important material condition for human life to survive and continue. It is also the physical platform for industrial operations such as refrigeration, dehumidification, heating, humidification, insulation, drying, air separation, etc. In some production links and living places, air is needed and the gas flow rate needs to be precisely controlled.

[0003] Since gas has excellent fluidity and the density, viscosity coefficient, Reynolds number, etc. that represent the thermal properties of gas change with the changes in gas temperature and pressure, generally speaking, compared with the measurement and control of the flow of solid particles and liquid substances, the methods and means of measuring and regulating gas flow are more complicated and the measurement and regulation accuracy is also lower.

[0004] Solving the problem of precise regulation of gas flow required in production links and living places has become an important and difficult problem in the field of fluid mechanics.

[0005] In addition, the existing damper can only realize one-to-one setting, and cannot realize two-way switching at the same time. Summary of the invention

[0006] In view of the problems in the background technology, the present invention provides a double-leaf single-drive three-state damper for realizing switching between a first channel, a second channel, and a third channel, wherein one end of the first channel and one end of the second channel are both connected to one end of the third channel; the double-leaf single-drive three-state damper comprises:

[0007] a first damper disposed at the connection between the first channel and the third channel;

[0008] a second damper disposed at the connection between the second channel and the third channel;

[0009] A driving device that drives the first damper and the second damper simultaneously;

[0010] The driving device synchronously drives the first damper to open and the second damper to close, or synchronously controls the first damper to close and the second damper to open, or partially opens the first damper and partially opens the second damper.

[0011] Preferably, the first damper / the second damper comprises:

[0012] A fixed orifice plate having a plurality of sequentially arranged ventilation areas disposed thereon;

[0013] A sliding orifice plate, wherein the sliding orifice plate is overlapped with the fixed orifice plate, and air distribution ports are arranged at positions corresponding to the ventilation areas on the sliding orifice plate and the fixed orifice plate, and the air distribution ports can cover the ventilation areas;

[0014] The driving device is used to simultaneously push the sliding orifice plate to move relative to the fixed orifice plate. During the relative movement, the overlapping portion of each ventilation area and the air distribution port changes, thereby realizing the switching of the ventilation area and the adjustment of the air flow.

[0015] Preferably, the ventilation area on the fixed orifice plate on the first damper is staggered with the ventilation area on the fixed orifice plate on the second damper; the air distribution area on the sliding orifice plate on the first damper is opposite to the air distribution area on the sliding orifice plate on the second damper;

[0016] The driving device drives the sliding orifice plate of the first air door and the sliding orifice plate of the second air door. When the ventilation area on the first air door completely overlaps with the air distribution area, the ventilation area on the second air door does not overlap with the air distribution area at all; when the ventilation area on the first air door does not overlap with the air distribution area at all, the ventilation area on the second air door completely overlaps with the air distribution area; when the ventilation area on the first air door partially overlaps with the air distribution area (for example, 30%), the ventilation area on the second air door also partially overlaps with the air distribution area (70%).

[0017] Preferably, a plurality of the ventilation areas are evenly distributed along the transverse or longitudinal direction of the fixed orifice plate, and a plurality of the air distribution ports are evenly distributed along the transverse or longitudinal direction of the sliding orifice plate; and the ventilation areas have the same shape and size as the air distribution ports; and the moving direction of the sliding orifice plate is along the arrangement direction of the ventilation areas and the air distribution areas.

[0018] Preferably, the arrangement direction of the ventilation area and the air distribution outlets on the first control damper is parallel to the arrangement direction of the ventilation area and the air distribution outlets on the second control damper; the driving rod of the driving device is parallel to the arrangement direction of the ventilation area and the air distribution outlets, and the driving rod is respectively connected to the first damper and the second damper through a connecting rod.

[0019] Preferably, the spacing between adjacent ventilation areas is equal to the spacing between adjacent air distribution ports; the distance between adjacent air distribution ports is greater than or equal to the size of adjacent ventilation areas in the moving direction between the fixed orifice plate and the sliding orifice plate.

[0020] Preferably, slide grooves are provided on two opposite sides of the fixed orifice plate, and the sliding orifice plate is inserted in the slide grooves and can move along the slide grooves.

[0021] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0022] The double-leaf single-drive three-state damper provided by the present invention drives the first damper and the second damper at the same time through a driving device, and makes the first damper and the second damper open and close in opposite phases, thereby realizing three states of connection between the first channel and the third channel, connection between the second channel and the third channel, and connection between the first channel and the second channel and the third channel at the same time, and the opening of the two dampers can also be adjusted by the driving device; the double-leaf single-drive three-state damper has a simple structure, ingenious design, and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other features and advantages of the present invention will be more clearly understood through the following detailed description in conjunction with the accompanying drawings, in which:

[0024] Figure 1 This is a schematic diagram of the structure of the double-leaf single-drive three-state damper provided in Example 1;

[0025] Figure 2 It is a cross-sectional schematic diagram of the double-leaf single-drive three-state damper provided in Example 1;

[0026] Figure 3 is a schematic diagram of the end portion of the first damper in Example 1;

[0027] Figure 4 This is a schematic diagram of the disassembly of the first damper in Example 1;

[0028] Figure 5 is a schematic diagram of the first damper in the closed state in Example 1;

[0029] Figure 6 is a schematic diagram of the first damper in the open state in Example 1;

[0030] Figure 7 This is a schematic diagram of the structure of the double-leaf single-drive three-state damper provided in Example 2;

[0031] Figure 8 This is a schematic diagram of the structure of the double-leaf single-drive three-state damper provided in Example 3;

[0032] Fig. 9 This is a cross-sectional schematic diagram of the double-leaf single-drive three-state damper provided in Example 3. DETAILED DESCRIPTION

[0033] The present invention will be described in more detail below with reference to the accompanying drawings showing embodiments of the present invention. However, the present invention may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are set forth in order to achieve a full and complete disclosure and to enable those skilled in the art to fully understand the scope of the present invention. In these drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity.

[0034] Example 1

[0035] Reference Figure 1-6 The present invention provides a double-leaf single-drive three-state damper for realizing switching among a first channel 1, a second channel 3, and a third channel 2, wherein one end of the first channel 1 and one end of the second channel 3 are both connected to one end of the third channel 2; the double-leaf single-drive three-state damper comprises a first damper 4 arranged at the connection between the first channel 1 and the third channel 2, a second damper 6 arranged at the connection between the second channel 3 and the third channel 2, and a driving device 6 for synchronously driving the first damper 4 and the second damper; the driving device 5 synchronously drives the first damper 4 to open and the second damper 6 to close so that the first channel 1 is connected to the third channel 2, or synchronously drives the first damper 4 to close and the second damper 6 to open so that the second channel 3 is connected to the third channel 2, or synchronously drives the first damper 4 to partially open and the second damper 6 to partially open so that the first channel 1 and the second channel 3 are simultaneously connected to the third channel 2.

[0036] The double-leaf single-drive three-state damper provided by the present invention drives the first damper and the second damper at the same time through a driving device, and makes the first damper and the second damper open and close in opposite phases, thereby realizing three states of connection between the first channel 1 and the third channel 2, connection between the second channel 3 and the third channel 2, and connection between the first channel 1 and the second channel 3 and the third channel 2 at the same time, and the opening of the two dampers can also be adjusted by the driving device; the double-leaf single-drive three-state damper has a simple structure, ingenious design, and simple operation.

[0037] In this embodiment, the first damper includes a first fixed orifice plate 401 and a first sliding orifice plate 403, and the first fixed orifice plate 401 is provided with a plurality of first ventilation areas 402 arranged in sequence; the first sliding orifice plate 403 is overlapped with the first fixed orifice plate 401, and first air distribution ports 404 are provided on the first sliding orifice plate 403 at positions corresponding to the first ventilation areas 402 on the first fixed orifice plate 401, and the first air distribution ports 404 can cover the first ventilation areas 402; the driving device 5 is used to push the first sliding orifice plate 403 to move relative to the first fixed orifice plate 401, and during the relative movement, the overlapping portion of each first ventilation area 402 and the first air distribution port 404 changes, thereby realizing the switching of the first ventilation area 402 and the adjustment of the air flow, thereby realizing the switching or flow adjustment between the first channel 1 and the third channel 2.

[0038] The second damper includes a second fixed orifice plate and a second sliding orifice plate, and the second fixed orifice plate is provided with a plurality of second ventilation areas arranged in sequence; the second sliding orifice plate and the second fixed orifice plate are overlapped, and second air distribution ports are provided at positions on the second sliding orifice plate corresponding to the second ventilation areas on the second fixed orifice plate, and the second air distribution ports can cover the second ventilation areas; the driving device is used to push the second sliding orifice plate to move relative to the second fixed orifice plate, and during the relative movement, the overlapping parts of the second ventilation areas and the second air distribution ports change, so as to realize the switching of the second ventilation areas and the adjustment of the air flow, thereby realizing the switching or flow adjustment between the second channel 3 and the third channel 2.

[0039] When in use, the driving device 5 synchronously drives the sliding orifice plate of the first damper 4 and the sliding orifice plate of the second damper 6:

[0040] When the ventilation area on the first damper 4 completely overlaps with the air distribution area, the ventilation area on the second damper 6 just does not completely overlap with the air distribution area, the first damper 4 is opened and the second damper is closed;

[0041] When the ventilation area on the first damper 4 does not overlap with the air distribution area at all, the ventilation area on the second damper 6 just completely overlaps with the air distribution area; the first damper 4 is closed and the second damper is opened;

[0042] When the ventilation area on the first damper partially overlaps with the air distribution area (x%), the ventilation area on the second damper also partially overlaps with the air distribution area (1-x%); the first damper 4 is partially opened, and the second damper is partially opened. For example, when the ventilation area on the first damper partially overlaps with the air distribution area by 30%, the ventilation area on the second damper also partially overlaps with the air distribution area by 70%.

[0043] In this embodiment, specifically, a plurality of first ventilation areas 402 / second ventilation areas are evenly distributed along the horizontal or vertical intervals of the first fixed orifice plate 401 / second fixed orifice plate, and a plurality of first air distribution ports 404 / second air distribution ports are evenly distributed along the horizontal or vertical intervals of the first sliding orifice plate 403 / second sliding orifice plate; and the first ventilation area 402 / second ventilation area and the first air distribution ports 404 / second air distribution ports have the same shape and size; the moving direction of the first sliding orifice plate 403 / second sliding orifice plate is along the arrangement direction of the first ventilation area 402 / second ventilation area and the first air distribution ports 404 / second air distribution ports. The driving rod of the driving device 5 is parallel to the arrangement direction of the ventilation areas and air distribution ports, and the driving rod is connected to the first damper and the second damper respectively through a connecting rod.

[0044] Furthermore, the spacing between adjacent first ventilation areas 402 / second ventilation areas is equal to the spacing between adjacent first air distribution outlets 404 / second air distribution outlets; the distance between adjacent first air distribution outlets 404 / second air distribution outlets is greater than or equal to the size of the adjacent first ventilation areas 402 / second ventilation areas in the moving direction between the first fixed orifice plate 401 / second fixed orifice plate and the first sliding orifice plate 403 / second sliding orifice plate.

[0045] Furthermore, the first ventilation area 402 on the first fixed orifice plate 401 on the first damper 4 is staggered with the second ventilation area on the second fixed orifice plate 6 on the second damper; the first air distribution area on the first sliding orifice plate 403 on the first damper 4 is arranged opposite to the second air distribution area on the second sliding orifice plate on the second damper 6. This embodiment is arranged in this way to ensure that when the first ventilation area 402 completely overlaps with the first air distribution port 404, the second ventilation area and the second air distribution port do not overlap at all; when the first ventilation area 402 and the first air distribution port 404 do not overlap at all, the second ventilation area and the second air distribution port completely overlap; when the first ventilation area 402 and the first air distribution port 404 partially overlap, the second ventilation area and the second air distribution port partially overlap.

[0046] In this embodiment, if Figure 1 As shown in the figure, in this embodiment, the first channel 1 and the second channel 3 are arranged opposite to each other at one end connected to the third channel 2, and the third channel 2 is arranged perpendicular to the first channel 1 and the second channel 3 and is connected to both of them at the same time; in this embodiment, the first damper and the second damper are arranged opposite to each other, and the driving device 705 is arranged between the first damper 4 and the second damper 6, and the driving device drives the first sliding orifice plate 403 of the first damper and the second sliding orifice plate of the second damper to move together.

[0047] Of course, in other embodiments, the first damper and the second damper may also be located on the same horizontal plane, such as Figure 8 As shown in , it can be adjusted according to specific needs and is not limited here.

[0048] In this embodiment, the first fixed orifice plate 401 is provided with slide grooves 405 on two opposite sides, and the first sliding orifice plate 403 is inserted in the slide grooves 405 and can move along the slide grooves 405. Similarly, the second fixed orifice plate is provided with slide grooves on two opposite sides, and the second sliding orifice plate is inserted in the slide grooves and can move along the slide grooves.

[0049] Example 2

[0050] This embodiment is an adjustment based on the embodiment 1.

[0051] like Figure 7 In this embodiment, the first damper 4 and the second damper 6 are arranged in the same plane.

[0052] Other structural forms of the double-leaf single-drive three-state damper provided in this embodiment can refer to the description in Example 1.

[0053] Example 3

[0054] This embodiment is an adjustment based on the embodiment 1.

[0055] like Figure 8-9 In this embodiment, the first channel 1 and the third channel 2 are arranged opposite to each other, and the second channel 3 is arranged perpendicular to the first channel 1 and the third channel 2. At this time, the first damper 4 and the second damper 6 are arranged vertically, but the moving directions of the sliding orifice plates thereon are still parallel to each other.

[0056] Other structural forms of the double-leaf single-drive three-state damper provided in this embodiment can refer to the description in Example 1.

[0057] Those skilled in the art will appreciate that the present invention can be implemented in many other specific forms without departing from its own spirit or scope. Although the implementation of the present invention has been described, it should be understood that the present invention should not be limited to these embodiments, and those skilled in the art can make changes and modifications within the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A double-leaf single-drive three-state damper, characterized in that: Used to realize switching among a first channel, a second channel, and a third channel, wherein one end of the first channel and one end of the second channel are both connected to one end of the third channel; The double-leaf single-drive three-state damper comprises: a first damper disposed at the connection between the first channel and the third channel; a second damper disposed at the connection between the second channel and the third channel; A driving device that drives the first damper and the second damper simultaneously; The driving device synchronously drives the first damper to open and the second damper to close, or synchronously drives the first damper to close and the second damper to open, or synchronously drives the first damper to partially open and the second damper to partially open; The first damper / second damper comprises: A fixed orifice plate having a plurality of sequentially arranged ventilation areas disposed thereon; A sliding orifice plate, wherein the sliding orifice plate is overlapped with the fixed orifice plate, and air distribution ports are arranged at positions corresponding to the ventilation areas on the sliding orifice plate and the fixed orifice plate, and the air distribution ports can cover the ventilation areas; The driving device is used to simultaneously push the sliding orifice plate to move relative to the fixed orifice plate. During the relative movement, the overlapping portion of each ventilation area and the air distribution port changes, thereby realizing the opening and closing of the ventilation area and the adjustment of the air flow; The ventilation area on the fixed orifice plate on the first damper is staggered with the ventilation area on the fixed orifice plate on the second damper; the air distribution area on the sliding orifice plate on the first damper is opposite to the air distribution area on the sliding orifice plate on the second damper; The driving device drives the sliding orifice plate of the first air door and the sliding orifice plate of the second air door. When the ventilation area on the first air door completely overlaps with the air distribution area, the ventilation area on the second air door does not overlap with the air distribution area at all; when the ventilation area on the first air door does not overlap with the air distribution area at all, the ventilation area on the second air door completely overlaps with the air distribution area; when the ventilation area on the first air door partially overlaps with the air distribution area, the ventilation area on the second air door also partially overlaps with the air distribution area.

2. The double-leaf single-drive three-state damper according to claim 1, characterized in that: There are multiple ventilation areas evenly distributed along the horizontal or vertical intervals of the fixed orifice plate, and there are multiple air distribution ports evenly distributed along the horizontal or vertical intervals of the sliding orifice plate; and the ventilation areas have the same shape and size as the air distribution ports; the moving direction of the sliding orifice plate is along the arrangement direction of the ventilation areas and the air distribution areas.

3. The double-leaf single-drive three-state damper according to claim 2 is characterized in that: The arrangement direction of the ventilation area and the air distribution outlet on the first damper is parallel to the arrangement direction of the ventilation area and the air distribution outlet on the second damper; The driving rod of the driving device is parallel to the arrangement direction of the ventilation area and the air distribution port, and the driving rod is connected to the first damper and the second damper respectively through a connecting rod.

4. The double-leaf single-drive three-state damper according to claim 2, characterized in that: The spacing between adjacent ventilation areas is equal to the spacing between adjacent air distribution ports; the distance between adjacent air distribution ports is greater than or equal to the size of the adjacent ventilation areas in the moving direction between the fixed orifice plate and the sliding orifice plate.

5. The double-leaf single-drive three-state damper according to claim 1, characterized in that: The fixed orifice plate is provided with sliding grooves on two opposite sides thereof, and the sliding orifice plate is inserted in the sliding grooves and can move along the sliding grooves.

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