External cylinder type pneumatic louver

Abstract

The present invention relates to the technical field of structural air duct shutters, and discloses an externally-mounted cylinder pneumatic shutter, including: a wall body and a window frame. The window frame is installed at the air duct opening of the wall body, and a fixed box is arranged at the bottom of the window frame. The fixed box is fixedly installed on the surface of the wall body. For this externally-mounted cylinder pneumatic shutter, by setting connecting rods to connect several window leaves into one body, the several window leaves can be opened synchronously, and then an externally-mounted cylinder is used to control the connecting rods, enabling the shutter to be pneumatically controlled. Subsequently, with a crank as the main body, a rotary manual control component is set up to achieve a dual operation form of the shutter. At the same time, the manual control component and the cylinder arranged outside are easy to operate, and there is no need for maintenance and inspection indoors. Disassembly and repair can be carried out outdoors, which is applicable to areas such as emergency generator rooms where there are high specification requirements, conventional manual operation is not possible outdoors, and disassembly and repair are not possible indoors and other special situations.

Description

Technical Field

[0001] The present invention relates to the technical field of structural air duct shutters, and specifically to an externally mounted cylinder pneumatic shutter. Background Art

[0002] A structural air duct is a passage for air circulation. When some indoor devices need to exhaust air during operation, generally an exhaust pipe is connected to the inside of the structural air duct, and shutters need to be installed at the air inlets of the structural air duct to prevent small animals from straying in and closing the air inlets, etc.

[0003] Currently, the shutters of structural air ducts are usually manual shutters. However, in many cases, due to the limited installation space of the structural air ducts, it is very awkward and difficult to operate the shutters manually. Moreover, because the space of the structural air duct is narrow and enclosed on all sides, the staff cannot enter the air duct for maintenance. Therefore, when the pneumatic shutter is damaged, it needs to be completely disassembled to detect and repair the damaged part, which makes the pneumatic shutter have great limitations. And for the existing pneumatic shutters, after being installed on the structural air duct, it is extremely cumbersome to clean the dust. Therefore, during long-term use, the dust will affect its normal operation. Therefore, on the basis of maintaining the original functions of the pneumatic shutter, a pneumatic shutter for enclosed spaces such as structural air ducts is proposed. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an externally mounted cylinder pneumatic shutter, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solutions: An externally mounted cylinder pneumatic shutter, comprising: a wall and a window frame. The window frame is installed at the air inlet of the wall. A fixed box is provided at the bottom of the window frame, and the fixed box is fixedly installed on the surface of the wall and is covered with a waterproof housing structure. A cylinder is fixedly installed inside the fixed box. The air inlet of the cylinder passes through the housing of the fixed box through a hose and is fixedly installed with a hand-operated valve. The hand-operated valve is fixedly installed on the surface of the wall through a plate seat. A manual control component is provided on the side of the window frame. A plurality of window leaves are evenly arranged and rotatably connected inside the window frame. A connecting link for connection is provided on the outer side of the window leaf. The bottom of the link penetrates through the window frame and is provided with a pushing and pulling component. The bottom of the pushing and pulling component is fixedly installed with the top of the piston rod of the cylinder. A cleaning component for cleaning dust is inlaid on a section of the inner wall of the window frame close to the inside of the air duct, and the cleaning component is arranged obliquely on the inner wall of the window frame.

[0006] Preferably, a wire mesh is fixedly installed on the inner wall of the window frame close to the outermost side, and the outer frame of the wire mesh is bolted to the window frame.

[0007] Preferably, a plurality of connecting seats are arranged on the side surface of the connecting rod, and the positions of the plurality of connecting seats correspond to those of a plurality of window leaves respectively. The through opening of the connecting rod passing through the window frame is square.

[0008] Preferably, the manual control component includes a crank. One side of the crank passes through the window frame through a rotating shaft and is fixedly provided with a manual control disk. The other side of the crank is rotatably connected with a push rod. One end of the push rod away from the connecting position of the crank is rotatably connected with a wall seat. The wall seat is fixedly installed on the surface of the window leaf, and the installation position of the wall seat is close to the top of the window leaf.

[0009] Preferably, the window leaf includes a stress plate. One side of the stress plate is fixedly installed with a sealing plate. The other side of the stress plate is provided with a positioning rod with a fixed angle. The installation position of the sealing plate is close to the upper half of the stress plate.

[0010] Preferably, the bottom of the stress plate is semi-circular. The rotating shafts on both sides of the stress plate are located at the center of the semi-circle at the bottom of the stress plate. A strip-shaped block corresponding to the arc at the bottom of the stress plate is arranged at the bottom of the inner wall of the window frame, and the strip-shaped block is at the bottom near the positioning rod side.

[0011] Preferably, the pushing and pulling component includes a supporting part. Screws are arranged on both sides of the supporting part. A slot is opened above the screw. A sliding cavity part is arranged above the supporting part. A shaft rod is arranged inside the sliding cavity part. Both ends of the shaft rod are square prismatic bars, and the shapes and sizes of both ends of the shaft rod are adapted to the inner walls of the slots. A nut is threadedly connected to the surface of the screw.

[0012] Preferably, the whole sliding cavity part is an elliptical hollow metal part. A roller for rolling is rotatably sleeved on the outer edge of the middle part of the shaft rod. The two sides of the sliding cavity part have oval inner concave and convex ribs in a converging shape. The roller rotating on the surface of the shaft rod is in rolling connection with the inner wall of the sliding cavity part.

[0013] Preferably, the cleaning component includes a sliding cavity box. The whole sliding cavity box is obliquely embedded on the inner wall of the window frame. A sliding seat is slidably connected to the bottom of the inner wall of the sliding cavity box. A spring is fixedly installed on the top of the sliding seat. The top of the spring is fixedly installed with the top of the inner wall of the sliding cavity box. A round rod is arranged on the side surface of the sliding seat. Cleaning components corresponding in position are embedded on both sides of the inner wall of the window frame. Both ends of the round rod are fixedly installed with the sliding seats located on both sides of the inner wall of the window frame. A roller brush is rotatably sleeved on the surface of the round rod.

[0014] Preferably, a plurality of fine brushes are arranged on the outer edge of the roller brush. The outer edge of the roller brush is in rolling connection with the inner surface of the window leaf, and the roller brush is located on the inner side near the bottom when the window leaf is closed.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The pneumatic louver with externally mounted cylinder connects several louver blades into one body by setting a connecting rod, enabling the several louver blades to open synchronously. Then, an externally mounted cylinder is used to control the connecting rod, enabling pneumatic control of the louver. Subsequently, with a crank as the main body, a rotary manual control component is set up to achieve a dual operation mode for the louver. At the same time, the manual control component and the cylinder set on the outside are easy to operate, and no maintenance or inspection is required indoors. Disassembly and repair can be carried out outdoors, making it suitable for areas such as emergency generator rooms where there are high regulatory requirements, conventional manual operation is not possible outdoors, and disassembly and repair are not possible indoors.

[0017] 2. The pneumatic louver with externally mounted cylinder is equipped with a manual control component and a hand-operated valve. When the louver is being repaired, problems with the pneumatic part and the louver blade linkage part of the louver can be detected respectively through the manual control component and the hand-operated valve, achieving the purpose of quickly locking the damaged part and repairing the louver, increasing the repair efficiency of the louver, and enabling the louver to be applied to special areas such as structural air ducts.

[0018] 3. The pneumatic louver with externally mounted cylinder uses the sliding cavity part on the push-pull component to enable the fixedly installed cylinder to push the reciprocating swinging connecting rod without damage, avoiding the influence of the swinging of the connecting rod on the cylinder. At the same time, by rotatably sleeving a roller on the surface of the shaft rod, the friction between the shaft rod and the inner wall of the sliding cavity part during rising and falling is reduced, thereby improving the service life of the push-pull component. At the same time, an insertion installation method is adopted between the shaft rod and the support part, increasing the convenience of installation and disassembly of the push-pull component and making it more convenient to replace the cylinder.

[0019] 4. The pneumatic louver with externally mounted cylinder is equipped with a cleaning component. When the louver blades open and close with the operation of the cylinder, the cleaning component can be pushed by the louver blades to scrape back and forth on its inner side, achieving a cleaning effect, enabling the side of the pneumatic louver close to the air duct to be automatically cleaned, reducing the difficulty of cleaning dust from the pneumatic louver, and avoiding the influence of dust on its normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the side sectional structure when the present invention is closed;

[0022] Figure 3 is the present invention Figure 2 is an enlarged schematic diagram of part A in

[0023] Figure 4 is a schematic diagram of the louver blade structure of the present invention;

[0024] Figure 5 is a schematic diagram of the unfolded structure of the push-pull component of the present invention;

[0025] Figure 6 Schematic side-sectional structure diagram during ventilation of the present invention;

[0026] Figure 7 Rear view structure diagram of the present invention;

[0027] Figure 8 Expanded structure diagram of the cleaning component of the present invention.

[0028] In the figure: 1, wall; 2, window frame; 3, wire mesh; 4, manual control component; 41, crank; 42, push rod; 43, wall seat; 44, manual control disc; 5, fixed box; 6, cylinder; 7, hand-operated valve; 8, window leaf; 81, stress plate; 82, sealing plate; 83, positioning rod; 9, connecting rod; 10, push-pull component; 101, support; 102, screw; 103, slot; 104, shaft rod; 105, nut; 106, sliding cavity part; 11, cleaning component; 111, sliding cavity box; 112, sliding seat; 113, spring; 114, round rod; 115, roller brush. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1-8 , the pneumatic louver with external cylinder includes: a wall 1 and a window frame 2. The window frame 2 is installed at the air duct opening of the wall 1. A fixed box 5 is provided at the bottom of the window frame 2. The fixed box 5 is fixedly installed on the surface of the wall 1, and the fixed box 5 itself is covered with a waterproof housing structure. A cylinder 6 is fixedly installed inside the fixed box 5. The air inlet of the cylinder 6 passes through the housing of the fixed box 5 through a hose and is fixedly installed with a hand-operated valve 7. The hand-operated valve 7 is fixedly installed on the surface of the wall 1 through a plate seat. A manual control component 4 is provided on the side of the window frame 2. A plurality of window leaves 8 are evenly arranged and rotatably connected inside the window frame 2. A connecting rod 9 for connection is provided on the outer side of the window leaf 8. The bottom of the connecting rod 9 passes through the window frame 2 and is provided with a push-pull component 10. The bottom of the push-pull component 10 is fixedly installed with the top of the piston rod of the cylinder 6. A cleaning component 11 for cleaning dust is inlaid on a section of the inner wall of the window frame 2 close to the air duct, and the cleaning component 11 is arranged obliquely on the inner wall of the window frame 2.

[0031] Among them; a wire mesh 3 is fixedly installed on the inner wall of the window frame 2 closest to the outermost side. The outer frame of the wire mesh 3 is bolted to the window frame 2. Using bolt connection not only makes the installation of the wire mesh 3 have a certain firmness, but also facilitates its disassembly, further improving the convenience for maintenance personnel to repair.

[0032] Among them; several connecting seats are arranged on the side of the connecting rod 9, and the positions of several connecting seats correspond to those of several window leaves 8 respectively. The through-hole of the connecting rod 9 passing through the window frame 2 is square. By connecting several window leaves 8 with the connecting rod 9, several window leaves 8 can be opened and closed synchronously, thus facilitating the control of their opening and closing by the air cylinder 6. At the same time, the square through-hole at the bottom of the window frame 2 can provide enough swinging space for the connecting rod 9 when the connecting rod 9 is pushed and pulled.

[0033] Among them; the manual control component 4 includes a crank 41. One side of the crank 41 passes through the window frame 2 through a rotating shaft and is fixedly installed with a manual control disk 44. The other side of the crank 41 is rotatably connected with a push rod 42. One end of the push rod 42 far from the connecting part of the crank 41 is rotatably connected with a wall seat 43. The wall seat 43 is fixedly installed on the surface of the window leaf 8, and the installation position of the wall seat 43 is close to the top of the window leaf 8. By taking the crank 41 as the main body, the manual control component 4 is set as a rotation control structure, which is convenient for manual operation in areas such as structural air ducts and other areas restricted by space, improving the application range of the shutter.

[0034] Among them; the window leaf 8 includes a stress plate 81. One side of the stress plate 81 is fixedly installed with a sealing plate 82. The other side of the stress plate 81 is provided with a positioning rod 83 with a fixed angle. The installation position of the sealing plate 82 is close to the upper half of the stress plate 81. As Figure 4 shown, the sealing plate 82 close to the upper half of the stress plate 81 overlaps with the adjacent window leaf 8, and the part of the outer edge of the sealing plate 82 extending beyond the stress plate 81 can just overlap with the bottom of the stress plate 81, thereby reducing the gap between adjacent window leaves 8 and improving the sealing effect of the shutter.

[0035] Among them; the bottom of the stress plate 81 is semicircular. The rotating shafts on both sides of the stress plate 81 are located at the center of the semicircle at the bottom of the stress plate 81. A strip-shaped block corresponding to the arc at the bottom of the stress plate 81 is arranged at the bottom of the inner wall of the window frame 2, and at the bottom of the strip-shaped block close to the positioning rod 83 side, as Figure 2 shown, the semicircular bottom can make the rotation and opening and closing of the stress plate 81 more convenient, further reducing the distance to be reserved between the stress plates 81. At the same time, the strip-shaped block arranged at the bottom of the inner wall of the window frame 2 can block the gap reserved for the rotation of the bottommost stress plate 81 for convenience, and the strip-shaped block is made of rubber to avoid blocking the rotation of the stress plate 81.

[0036] Among them; the push-pull assembly 10 includes a support 101. On both sides of the support 101, there are screw rods 102. Above the screw rods 102, there are slots 103. Above the support 101, there is a sliding cavity part 106. Inside the sliding cavity part 106, there is a shaft rod 104. The two ends of the shaft rod 104 are square ridges, and the shape and size of the two ends of the shaft rod 104 are adapted to the inner wall of the slot 103. The surface of the screw rod 102 is threadedly connected with a nut 105. By using the sliding cavity part 106 on the push-pull assembly 10, the fixedly installed cylinder 6 can push the swinging connecting rod 9 back and forth without damage, avoiding the influence of the swinging of the connecting rod 9 on the cylinder 6. At the same time, the shaft rod 104 and the support 101 adopt an insertion installation method, increasing the convenience of installation and disassembly of the push-pull assembly 10 and making it more convenient to replace the cylinder 6.

[0037] Among them; the whole of the sliding cavity part 106 is an elliptical hollow metal part. A roller for rolling is rotatably sleeved on the outer edge of the middle part of the shaft rod 104. There are converging elliptical inner concave and convex ridges on both sides of the sliding cavity part 106. The roller rotatably arranged on the surface of the shaft rod 104 is in rolling connection with the inner wall of the sliding cavity part 106. The converging structure on both sides of the sliding cavity part 106 restricts the roller inside it. When the shaft rod 104 slides left and right under the influence of the swinging of the connecting rod 9, the roller can further reduce the friction between the shaft rod 104 and the inner wall of the sliding cavity part 106, thereby increasing the service life of the push-pull assembly 10 and reducing the effort required for pushing and pulling.

[0038] Among them; the cleaning assembly 11 includes a sliding cavity box 111. The sliding cavity box 111 is integrally and obliquely embedded in the inner wall of the window frame 2. At the bottom of the inner wall of the sliding cavity box 111, there is a sliding seat 112. At the top of the sliding seat 112, a spring 113 is fixedly installed. The top of the spring 113 is fixedly installed with the top of the inner wall of the sliding cavity box 111. On the side of the sliding seat 112, there is a round rod 114. The cleaning assemblies 11 corresponding in position are embedded on both sides of the inner wall of the window frame 2. The two ends of the round rod 114 are respectively fixedly installed with the sliding seats 112 located on both sides of the inner wall of the window frame 2. A roller brush 115 is rotatably sleeved on the surface of the round rod 114. As the window leaf 8 opens and closes, the roller brush 115 can compress the spring 113 through the sliding seat 112 and clean the side of the window leaf 8 close to the air duct back and forth, reducing the cleaning difficulty of the shutter.

[0039] Among them; several small brushes are arranged on the outer edge of the roller brush 115. The outer edge of the roller brush 115 is in rolling connection with the inner surface of the window leaf 8. And the roller brush 115 is located on the inner side close to the bottom when the window leaf 8 is closed. When the window leaf 8 opens and closes as the cylinder 6 operates, the cleaning assembly 11 can be pushed by the window leaf 8 to scrape its inner side back and forth, achieving a cleaning effect, so that the side of the pneumatic shutter close to the air duct can be automatically cleaned as the pneumatic shutter operates.

[0040] Working principle: After installing the shutter, when controlling the shutter, it can be controlled manually and pneumatically respectively. During normal use, the cylinder 6 can be directly started, and the push-pull assembly 10 is driven by the up and down movement of the cylinder 6 to drive the connecting rod 9 to swing up and down, thereby controlling the opening and closing of the window leaf 8. During the opening and closing process of the shutter, the cleaning assembly 11 is pushed by the opening and closing of the window leaf 8 and can clean the window leaf 8 back and forth. When the shutter is damaged, first, the cylinder 6 can be detected by manually pressing the hand-operated valve 7. If the cylinder 6 is damaged, the gas supply equipment can be directly repaired. If the cylinder 6 can operate normally, the connecting rod 9 is separated from the piston rod of the cylinder 6 by disassembling the push-pull assembly 10, and the manual control assembly 4 is rotated to check whether the window leaf 8 can open and close normally. If not, the wire mesh 3 can be directly disassembled to repair the shutter.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Pneumatic louver with external cylinder, characterized in that, it includes: a wall body (1) and a window frame (2), the window frame (2) is installed at the air duct opening of the wall body (1), a fixed box (5) is arranged at the bottom of the window frame (2), the fixed box (5) is fixedly installed on the surface of the wall body (1), and the fixed box (5) itself is covered with a waterproof housing structure, a cylinder (6) is fixedly installed inside the fixed box (5), the air inlet of the cylinder (6) passes through the housing of the fixed box (5) through a hose and is fixedly installed with a hand-operated valve (7), the hand-operated valve (7) is fixedly installed on the surface of the wall body (1) through a plate seat, a manual control component (4) is arranged on the side of the window frame (2), a plurality of window leaves (8) are evenly arranged and rotatably connected inside the window frame (2), a connecting link (9) is arranged on the outer side of the window leaf (8), the bottom of the link (9) passes through the window frame (2) and is provided with a push-pull component (10), the bottom of the push-pull component (10) is fixedly installed with the top of the piston rod of the cylinder (6), a cleaning component (11) for cleaning dust is inlaid on a section of the inner wall of the window frame (2) close to the air duct, and the cleaning component (11) is arranged obliquely on the inner wall of the window frame (2); the manual control component (4) includes a crank (41), one side of the crank (41) passes through the window frame (2) through a rotating shaft and is fixedly installed with a manual control disk (44), the other side of the crank (41) is rotatably connected with a push rod (42), one end of the push rod (42) far from the connecting point of the crank (41) is rotatably connected with a wall seat (43), the wall seat (43) is fixedly installed on the surface of the window leaf (8), and the installation position of the wall seat (43) is close to the top of the window leaf (8); the push-pull component (10) includes a support (101), screws (102) are arranged on both sides of the support (101), a slot (103) is opened above the screw (102), a sliding cavity part (106) is arranged above the support (101), a shaft rod (104) is arranged inside the sliding cavity part (106), both ends of the shaft rod (104) are square ribs, and the shapes and sizes of both ends of the shaft rod (104) are adapted to the inner wall of the slot (103), and a nut (105) is threadedly connected to the surface of the screw (102); the cleaning component (11) includes a sliding cavity box (111), the sliding cavity box (111) is integrally and obliquely inlaid on the inner wall of the window frame (2), a sliding seat (112) is slidably connected to the bottom of the inner wall of the sliding cavity box (111), a spring (113) is fixedly installed on the top of the sliding seat (112), the top of the spring (113) is fixedly installed with the top of the inner wall of the sliding cavity box (111), a round rod (114) is arranged on the side of the sliding seat (112), cleaning components (11) corresponding in position are inlaid on both sides of the inner wall of the window frame (2), both ends of the round rod (114) are fixedly installed with the sliding seats (112) located on both sides of the inner wall of the window frame (2), and a roller brush (115) is rotatably sleeved on the surface of the round rod (114).

2. The pneumatic louver with external cylinder according to claim 1, characterized in that, a wire mesh (3) is fixedly installed on the inner wall of the window frame (2) close to the outermost side, and the outer frame of the wire mesh (3) is bolted to the window frame (2).

3. The pneumatic louver with external cylinder according to claim 1, characterized in that, a plurality of connecting seats are arranged on the side surface of the connecting rod (9), and the plurality of connecting seats correspond to the positions of a plurality of window leaves (8) respectively, and the through opening of the connecting rod (9) passing through the window frame (2) is square.

4. The pneumatic louver with external cylinder according to claim 1, characterized in that, the window leaf (8) includes a stress plate (81), a sealing plate (82) is fixedly installed on one side of the stress plate (81), a positioning rod (83) with a fixed angle is arranged on the other side of the stress plate (81), and the installation position of the sealing plate (82) is close to the upper half of the stress plate (81).

5. The pneumatic louver with external cylinder according to claim 4, characterized in that, the bottom of the stress plate (81) is semicircular, the rotating shafts on both sides of the stress plate (81) are located at the center of the semicircle at the bottom of the stress plate (81), and a strip-shaped block corresponding to the arc at the bottom of the stress plate (81) is arranged at the bottom of the inner wall of the window frame (2), and the strip-shaped block is at the bottom on the side close to the positioning rod (83).

6. The pneumatic louver with external cylinder according to claim 1, characterized in that, the whole of the sliding cavity member (106) is an oval hollow metal part, a roller for rolling is rotatably sleeved on the outer edge of the middle part of the shaft rod (104), there are oval inner concave and convex ribs with a closed mouth shape on both sides of the sliding cavity member (106), and the roller rotating on the surface of the shaft rod (104) is in rolling connection with the inner wall of the sliding cavity member (106).

7. The pneumatic louver with external cylinder according to claim 1, characterized in that, a plurality of fine brushes are arranged on the outer edge of the roller brush (115), the outer edge of the roller brush (115) is in rolling connection with the inner surface of the window leaf (8), and the roller brush (115) is located on the inner side close to the bottom when the window leaf (8) is closed.

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