Air valve and adjustment method

Abstract

The present invention relates to the technical field of duct ventilation, and more particularly to a damper and adjustment method, comprising a valve housing, a ventilation passage being provided in the middle of the valve housing; and a windshield assembly disposed within the valve housing. The windshield assembly comprises a cross-shaped support member mounted within the valve housing, the support member dividing the ventilation passage into four ventilation areas, each of which is provided with a plurality of windshields for enclosing the ventilation areas. The air volume adjustment assembly employed in the present invention cooperates with the windshield to achieve small-scale changes in the air volume passing through the damper, as well as rapid changes in the air volume passing through the damper, thereby increasing the operational flexibility of the damper and broadening the range of applications for the damper.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline ventilation, and in particular to an air valve and an adjustment method thereof. Background Art

[0002] Damper is a vital component in air conditioning and ventilation systems, controlling the direction, speed, and volume of air flow. They are typically installed in ductwork to help effectively control temperature and air quality in different areas.

[0003] Existing air valves include active air valves, passive air valves, etc. Passive air valves do not rely on external power sources for operation during use and automatically adjust their opening and closing states according to the natural pressure difference of air flow. They have a simple structure. However, the scope of use of passive air valves is limited. They can only be used in working environments with large air flow, and the blades of passive air valves frequently collide with the valve body, which reduces the service life of the passive air valves. Active air valves are operated by external power sources, can control the size of the air volume, and limit the adjusted blades. They are applicable to many occasions. However, multiple blades in the active air valve can only be adjusted at the same time, and the range of air volume adjustment each time is large, which reduces the accuracy of the air volume adjustment of the air valve.

[0004] Therefore, there is an urgent need to provide an air valve that can improve the accuracy of air volume regulation and increase the number of usage occasions. Summary of the Invention

[0005] Based on this, it is necessary to provide an air valve and an adjustment method, aiming to solve the problems caused by the existing air valve during use.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a wind valve comprises: a valve housing, wherein a ventilation channel is provided in the middle of the valve housing.

[0007] It also includes a wind shield group, which is arranged in the valve housing. The wind shield group includes a cross-shaped support installed inside the valve housing. The support divides the ventilation channel into four ventilation areas. The ventilation areas are provided with multiple wind shields for closing the ventilation areas.

[0008] It also includes an air volume adjustment group, which is arranged on the valve housing. The air volume adjustment group includes an overall adjustment part arranged on the valve housing, and multiple individual adjustment parts are connected to the left and right sides of the overall adjustment part. The multiple individual adjustment parts are connected to multiple corresponding wind shields. The overall adjustment part adjusts the multiple individual adjustment parts at the same time, so that the multiple wind shields are transformed and change the air volume of the ventilation channel at the same time.

[0009] The separate adjustment part includes a lifting rod that slides through the upper shell wall of the valve shell, and a plurality of positioning openings are opened on the lifting rod. A traction rod is hinged at the lower end of the lifting rod, and a rotating sleeve is installed at the lower end of the traction rod. A fixed connecting piece is connected to the rotating sleeve, and the fixed connecting piece is connected to the corresponding wind shield. The vertically moving lifting rod drives the traction rod and the rotating sleeve to move, and the moving rotating sleeve drives the corresponding single wind shield to change through the fixed connecting piece, so that the air volume of the ventilation channel changes. A limit piece connected to the overall adjustment part is provided in any positioning opening.

[0010] Preferably, the wind shield portion includes a plurality of blades located in the ventilation area, both ends of the blades are rotatably connected to the vertical section of the support and the side wall of the valve housing through a rotating shaft, a connecting seat is installed on the blade, an ear seat plate is hinged on the connecting seat, and a linkage rod is commonly installed on the multiple ear seat plates.

[0011] Preferably, the integral adjustment portion includes two guide rods symmetrically mounted on the upper end of the valve housing, a lifting plate is slidingly sleeved on the two guide rods, an adjusting screw is threadedly connected to the middle of the lifting plate, and the lower end of the adjusting screw is rotatably connected to the upper shell wall of the valve housing.

[0012] Preferably, the fixed connection member includes a connecting rod which is sleeved in the rotating sleeve and rotatably connected thereto, and a fixing plate is installed at the end of the connecting rod, and the fixing plate is fixedly connected to the corresponding linkage rod.

[0013] Preferably, the limiting member includes two sliding grooves symmetrically opened on the upper end of the lifting plate, a sliding block is slidably connected in the sliding groove, a mounting member is installed on the upper end of the sliding block, and a limiting rod that cooperates with the corresponding positioning opening is commonly installed between the front and rear mounting members.

[0014] Preferably, the wind shield group further includes a plurality of baffles respectively installed on the inner ends of the side walls of the two vertical sections of the valve housing and the left and right ends of the vertical section of the support member, and the baffles are used to limit the rotation angle of the blades.

[0015] Preferably, a limit plate is installed near the upper end of the lifting rod to limit the lowering distance of the lifting rod.

[0016] Preferably, the multiple connecting rods in the same ventilation area have the same structure but different lengths, and the connecting rods in the upper and lower ventilation areas on the same side are installed in opposite directions to the fixing plates.

[0017] Preferably, the traction rods in the plurality of separate adjustment parts on the same side have the same structure and only differ in length.

[0018] In addition, the present invention also provides a method for adjusting an air valve, which specifically includes the following steps: S1: detachably installing the valve housing on the ventilation duct, and the multiple wind shielding parts in the initial state seal the ventilation channel.

[0019] S2: According to the required air volume, move one or more lifting rods, the lifting rod drives the traction rod and the rotating sleeve to move, and the moving rotating sleeve drives the corresponding windshield part to change through the fixed connecting piece, so that the air volume of the ventilation channel changes.

[0020] S3: Or the overall adjustment part drives multiple lifting rods to move at the same time, the multiple lifting rods drive multiple traction rods and multiple rotating sleeves to move, and the multiple moving rotating sleeves drive multiple corresponding windshields to change through multiple fixed connecting parts, so that the air volume of the ventilation channel can be changed quickly.

[0021] S4: The air damper that changes the air volume works on the ventilation duct.

[0022] In summary, the present invention has the following beneficial effects: 1. The air volume adjustment group used in the present invention cooperates with the wind shield part, which can realize the small-scale change of the air volume passing through the air valve, and can also realize the rapid change of the air volume passing through the air valve, thereby improving the flexibility of the air valve operation and increasing the use occasions of the air valve.

[0023] 2. The multiple separate adjustment parts adopted in the present invention can respectively control the status of multiple wind shielding parts, flexibly control the opening and closing status of different areas of the air valve, realize the small-scale change of the air flow rate of the air valve, and improve the accuracy of the air valve in regulating the air volume.

[0024] 3. The overall adjustment part used in the present invention cooperates with multiple individual adjustment parts, so that multiple individual adjustment parts can adjust multiple wind shields at the same time, thereby realizing the function of the air valve to quickly adjust the air volume.

[0025] 4. The air volume adjustment group used in the present invention cooperates with the wind shield, which can limit the wind shield after adjustment to avoid frequent collisions of the wind shield, thereby effectively improving the service life of the air valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and examples.

[0027] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle is shown.

[0028] Figure 2 A schematic diagram of the three-dimensional structure of the present invention from a second viewing angle is shown.

[0029] Figure 3 A front view of the present invention is shown.

[0030] Figure 4 A left side view of the present invention is shown.

[0031] Figure 5 Shown Figure 3 Cross-sectional view of AA in the figure.

[0032] Figure 6 Shown Figure 5 Magnified view of area C in the middle.

[0033] Figure 7 Shown Figure 4 Cross-sectional view of the BB.

[0034] Figure 8 Shown Figure 7 Magnified view of area D in the middle.

[0035] Figure 9 A schematic diagram of the three-dimensional structure of a portion of the valve housing, a portion of the lifting plate and a separate adjustment portion of the present invention is shown.

[0036] Among them, the above-mentioned drawings include the following figure marks: 1. valve housing; 10. ventilation channel; 100. ventilation area; 11. circular tube; 2. wind shield group; 20. support member; 21. wind shield part; 210. blade; 211. connecting seat; 212. ear seat plate; 213. linkage rod; 22. baffle; 3. air volume adjustment group; 30. overall adjustment part; 300. guide rod; 301. lifting plate; 302. adjusting screw; 31. separate adjustment part; 310. lifting rod; 311. positioning opening; 312. traction rod; 313. rotating sleeve; 314. fixed connecting part; 3140. connecting rod; 3141. fixed plate; 315. limit member; 3150. slide groove; 3151. sliding block; 3152. mounting member; 3153. limit rod; 316. limit plate. DETAILED DESCRIPTION

[0037] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] See Figure 1 、 Figure 2 and Figure 5 A wind valve includes a valve housing 1, a ventilation channel 10 is provided in the middle of the valve housing 1, and round tubes 11 connected to the ventilation channel 10 are installed at the front and rear ends of the valve housing 1.

[0039] During the specific operation, the valve housing 1 is transported to the installation position. A plurality of installation holes for installation and connection are opened on the circular tube 11. Then, the two circular tubes 11 are fixedly connected to the two existing ventilation ducts respectively by bolts.

[0040] See Figure 1-Figure 5The air valve also includes a wind shield group 2, which is arranged in the valve housing 1. The wind shield group 2 includes a cross-shaped support member 20 installed inside the valve housing 1. The support member 20 divides the ventilation channel 10 into four ventilation areas 100. The ventilation area 100 is provided with a plurality of wind shields 21 for closing the ventilation area 100.

[0041] See Figure 2 、 Figure 6 and Figure 7 The wind shield 21 includes a plurality of blades 210 located in the ventilation area 100. Both ends of the blades 210 are rotatably connected to the vertical section of the support member 20 and the side wall of the valve housing 1 through a rotating shaft. A connecting seat 211 is installed on the blade 210, and an ear seat plate 212 is hinged on the connecting seat 211. A linkage rod 213 is commonly installed on the multiple ear seat plates 212.

[0042] See Figure 1 and Figure 6 The wind shield group 2 also includes a plurality of baffles 22 respectively installed on the inner ends of the side walls of the two vertical sections of the valve housing 1 and the left and right ends of the vertical section of the support member 20. The baffles 22 are used to limit the rotation angle of the blade 210.

[0043] During specific operation, the support member 20 divides the ventilation channel 10 into four ventilation areas 100, and plays a supporting and limiting role in the subsequent installation of the blades 210. The support member 20 can be a rod-shaped structure or a frame-shaped structure, which is not limited here. During the installation of the valve housing 1 and the ventilation duct, ensure that the end of the blade 210 away from the linkage rod 213 is facing the air inlet direction. In the initial state, the blade 210 is in a vertical state due to its own gravity. The ends of the two adjacent blades 210 in the same ventilation area 100 are staggered to avoid gaps between the two adjacent blades 210 and air leakage. At the same time, the top and bottom two blades 210 in the same ventilation area 100 abut against the inner wall of the valve housing 1, thereby ensuring that multiple blades 210 can seal the ventilation area 100. The blades 210 in the four ventilation areas 100 realize the function of closing the ventilation channel 10. Multiple baffles 22 are used to limit the clockwise rotation of the blade 210 to avoid excessive rotation of the blade 210 and the formation of gaps between adjacent blades 210.

[0044] See Figure 1 、 Figure 2 and Figure 5The air valve also includes an air volume adjustment group 3, which is arranged on the valve housing 1. The air volume adjustment group 3 includes an overall adjustment part 30 arranged on the valve housing 1, and multiple individual adjustment parts 31 are connected to the left and right sides of the overall adjustment part 30. The multiple individual adjustment parts 31 are connected to multiple corresponding wind shields 21. The overall adjustment part 30 simultaneously adjusts the multiple individual adjustment parts 31, so that the multiple wind shields 21 are simultaneously transformed and change the air volume of the ventilation channel 10.

[0045] See Figure 1 、 Figure 2 、 Figure 8 and Figure 9 The separate adjustment part 31 includes a lifting rod 310 that slides through the upper shell wall of the valve shell 1. A plurality of positioning openings 311 are provided on the lifting rod 310. A traction rod 312 is hinged at the lower end of the lifting rod 310. A rotating sleeve 313 is installed at the lower end of the traction rod 312. A fixed connecting piece 314 is connected to the rotating sleeve 313. The fixed connecting piece 314 is connected to the corresponding wind shield 21. The vertically moving lifting rod 310 drives the traction rod 312 and the rotating sleeve 313 to move. The moving rotating sleeve 313 drives the corresponding single wind shield 21 to change through the fixed connecting piece 314, so that the air volume of the ventilation channel 10 changes. A limiting piece 315 connected to the overall adjustment part 30 is provided in any one of the positioning openings 311. A limiting plate 316 for limiting the descending distance of the lifting rod 310 is installed near the upper end of the lifting rod 310.

[0046] During specific operation, after the valve housing 1 and the ventilation duct are installed, in the initial state, multiple limit members 315 cooperate with the corresponding positioning openings 311 on the multiple lifting rods 310 to realize the function of limiting the multiple lifting rods 310, and then limit the wind shield 21 through the traction rod 312, the rotating sleeve 313 and the fixed connection member 314 to prevent the multiple blades 210 from rotating due to wind force, so that it can be used under working conditions that require the air valve to be closed, increasing the use occasions of the air valve, and the limit plate 316 limits the downward movement distance of the lifting rod 310 to prevent the lifting rod 310 from entering the interior of the valve housing 1 due to its own gravity.

[0047] See Figure 2 、 Figure 5 、 Figure 7 and Figure 9 The fixed connecting member 314 includes a connecting rod 3140 which is sleeved in the rotating sleeve 313 and rotatably connected thereto. A fixing plate 3141 is installed at the end of the connecting rod 3140 , and the fixing plate 3141 is fixedly connected to the corresponding linkage rod 213 .

[0048] See Figure 1 、 Figure 2 、 Figure 7 and Figure 9The overall adjustment part 30 includes two guide rods 300 symmetrically installed on the upper end of the valve housing 1, and a lifting plate 301 is slidably sleeved on the two guide rods 300. The limiting member 315 includes two sliding grooves 3150 symmetrically opened on the upper end of the lifting plate 301. A sliding block 3151 is slidably connected in the sliding groove 3150, and a mounting member 3152 is installed on the upper end of the sliding block 3151. A limiting rod 3153 that cooperates with the corresponding positioning opening 311 is commonly installed between the front and rear mounting members 3152.

[0049] When the air valve is needed for ventilation, the corresponding lifting rod 310 is pulled according to the required ventilation volume. The lifting rod 310 drives the rotating sleeve 313 to rise through the traction rod 312, and the rotating sleeve 313 drives the connecting rod 3140 and the fixed plate 3141 to rise. The fixed plate 3141 drives the linkage rod 213 to rise. The linkage rod 213 drives the multiple blades 210 to rotate according to the rotating shaft through the multiple ear seat plates 212 and the multiple connecting seats 211, thereby opening the ventilation area 100 and realizing the ventilation function. When the lifting rod 310 is raised to the required height, it pushes the corresponding two sliding blocks 3151. The two sliding blocks 3151 drive the two mounting parts 3152 to drive the The limiting rod 3153 moves to the corresponding positioning opening 311 to realize the function of limiting the lifting rod 310, and then realize the function of limiting the rotated blade 210, avoiding repeated collisions of the blade 210, and improving the service life of the air valve. The mounting part 3152 can be a plate-shaped structure, a rod-shaped structure or a frame-shaped structure, which is not limited here. Multiple lifting rods 310 can respectively control the status of multiple wind shields 21, thereby flexibly controlling the opening and closing status of different areas of the ventilation channel 10, and changing the air volume passing through the air valve in a small range, effectively improving the flexibility of the air valve in controlling the air volume, and improving the accuracy of the air valve in adjusting the air volume.

[0050] See Figure 7 and Figure 9 The multiple connecting rods 3140 in the same ventilation area 100 have the same structure and only differ in length. The connecting rods 3140 and the fixing plates 3141 in the upper and lower ventilation areas 100 on the same side are installed in opposite directions.

[0051] See Figure 1 and Figure 7 The traction rods 312 in the multiple independent adjustment parts 31 on the same side have the same structure and only differ in length.

[0052] During specific operation, traction rods 312 of different lengths can realize the function of adjusting the wind shield 21 at different heights. The connecting rods 3140 in the same ventilation area 100 have the same structure but different lengths. The connecting rods 3140 in the upper and lower ventilation areas 100 on the same side are installed in opposite directions to the fixing plate 3141. Multiple installed traction rods 312 can be laid flat without affecting the movement of the traction rods 312 and the rotation of the blades 210.

[0053] See Figure 7 The middle part of the lifting plate 301 is threadedly connected with an adjusting screw 302, and the lower end of the adjusting screw 302 is rotatably connected to the upper shell wall of the valve shell 1.

[0054] During specific operation, when the air valve changes the air volume, the adjusting screw 302 can also be rotated, and the adjusting screw 302 drives the lifting plate 301 to rise along the guide rod 300. At the same time, the lifting plate 301 drives the multiple lifting rods 310 to rise through multiple limit plates 316 and multiple limit members 315, thereby realizing that all blades 210 in multiple ventilation areas 100 rotate at the same time, thereby realizing the rapid change of the air volume of the ventilation channel 10, effectively improving the efficiency of the air volume change of the air valve.

[0055] In addition, the present invention also provides a method for adjusting an air valve, which specifically includes the following steps: S1: detachably mounting the valve housing 1 on the ventilation duct, wherein the multiple wind shielding portions 21 in the initial state seal the ventilation channel 10 .

[0056] S2: According to the required air volume, move one or more lifting rods 310, and the lifting rod 310 drives the traction rod 312 and the rotating sleeve 313 to move. The moving rotating sleeve 313 drives the corresponding wind shield 21 to change through the fixed connecting piece 314, so that the air volume of the ventilation channel 10 changes.

[0057] S3: Or the overall adjustment part 30 drives multiple lifting rods 310 to move at the same time, and the multiple lifting rods 310 drive multiple traction rods 312 and multiple rotating sleeves 313 to move. The multiple moving rotating sleeves 313 drive multiple corresponding wind shields 21 to change through multiple fixed connecting parts 314, so that the air volume of the ventilation channel 10 changes rapidly.

[0058] S4: The air damper that changes the air volume works on the ventilation duct.

[0059] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0060] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0061] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A damper, characterized in that: include: A valve housing, wherein a ventilation channel is provided in the middle of the valve housing; a wind shield assembly disposed in the valve housing, the wind shield assembly comprising a cross-shaped support member mounted inside the valve housing, the support member dividing the ventilation channel into four ventilation areas, each of the ventilation areas being provided with a plurality of wind shield portions for enclosing the ventilation areas; An air volume adjustment group is provided on the valve housing, the air volume adjustment group comprising an integral adjustment portion provided on the valve housing, a plurality of individual adjustment portions being connected to the left and right sides of the integral adjustment portion, the plurality of individual adjustment portions being connected to a plurality of corresponding windshield portions, the integral adjustment portion simultaneously adjusting the plurality of individual adjustment portions, causing the plurality of windshield portions to be simultaneously changed and altering the air volume of the ventilation channel; The separate adjustment part includes a lifting rod that slides through the upper shell wall of the valve housing, a plurality of positioning openings are opened on the lifting rod, a traction rod is hinged at the lower end of the lifting rod, a rotating sleeve is installed at the lower end of the traction rod, a fixed connecting piece is connected to the rotating sleeve, and the fixed connecting piece is connected to the corresponding windshield part. The vertically moving lifting rod drives the traction rod and the rotating sleeve to move, and the moving rotating sleeve drives the corresponding single windshield part to change through the fixed connecting piece, so that the air volume of the ventilation channel is changed, and a limiter connected to the overall adjustment part is provided in any one of the positioning openings; The windshield portion includes a plurality of blades located in the ventilation area, both ends of the blades being rotatably connected to the vertical section of the support member and the side wall of the valve housing via a rotating shaft, a connecting seat being mounted on the blade, a lug plate being hingedly connected to the connecting seat, and a linkage rod being mounted on the plurality of lug plates; The fixed connection member includes a connecting rod which is sleeved in the rotating sleeve and rotatably connected thereto, and a fixing plate is installed at the end of the connecting rod, and the fixing plate is fixedly connected to the corresponding linkage rod.

2. The air valve according to claim 1, characterized in that: The integral adjustment part includes two guide rods symmetrically installed on the upper end of the valve housing. A lifting plate is slidingly sleeved on the two guide rods. An adjusting screw is threadedly connected to the middle of the lifting plate. The lower end of the adjusting screw is rotatably connected to the upper shell wall of the valve housing.

3. The air valve according to claim 2, characterized in that: The limiting member includes two sliding grooves symmetrically opened on the upper end of the lifting plate, a sliding block is slidably connected in the sliding groove, a mounting member is installed on the upper end of the sliding block, and a limiting rod that cooperates with the corresponding positioning opening is installed between the front and rear mounting members.

4. The air valve according to claim 1, characterized in that: The wind shield group also includes a plurality of baffles respectively installed on the inner ends of the side walls of the two vertical sections of the valve housing and the left and right ends of the vertical section of the support member, and the baffles are used to limit the rotation angle of the blades.

5. The air valve according to claim 1, characterized in that: A limit plate for limiting the descending distance of the lifting rod is installed near the upper end of the lifting rod.

6. The air valve according to claim 1, characterized in that: The multiple connecting rods in the same ventilation area have the same structure but different lengths. The connecting rods in the upper and lower ventilation areas on the same side are installed in opposite directions to the fixing plates.

7. The air valve according to claim 1, characterized in that: The traction rods in the plurality of independent adjustment parts on the same side have the same structure and only differ in length.

8. A method for adjusting a damper, characterized in that: The method is completed by using the air valve according to claim 1, comprising the following steps: S1: The valve housing is detachably mounted on the ventilation duct, and the multiple wind shielding parts in the initial state seal the ventilation duct; S2: According to the required air volume, a single or multiple lifting rods are moved, and the lifting rods drive the traction rod and the rotating sleeve to move. The moving rotating sleeve drives the corresponding windshield to change through the fixed connection piece, so that the air volume of the ventilation channel is changed; or the overall adjustment part drives multiple lifting rods to move at the same time, and the multiple lifting rods drive multiple traction rods and multiple rotating sleeves to move. The multiple moving rotating sleeves drive multiple corresponding windshields to change through multiple fixed connection pieces, so that the air volume of the ventilation channel is quickly changed; S3: The air damper that changes the air volume works on the ventilation duct.

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