A manually operated split-leaf air volume control valve

Abstract

The utility model discloses a kind of manual split multi-leaf air volume regulating valves, including valve body, air volume regulating assembly, linkage assembly and regulation and control component;Regulation and control component includes C-type frame, C-type frame is fixed above linkage assembly, the inside of the upper and lower two boards of its opening is respectively provided with upper round tooth and lower round tooth, C-type frame upper plate side surface is provided with indicating arrow, upper round tooth and lower round tooth are provided with regulation and control rod between, regulation and control rod includes stem and rod head, tooth slot is set on rod head, the center of rod head top surface is set with round shaft, the center of rod head bottom surface is set with round shaft, scale disc is set on the circumference of rod head, regulation and control shaft is set in C-type frame, regulation and control shaft includes shaft column and first hinged part, first hinged part is fixed on shaft column, shaft column is fixedly connected with C-type frame bottom plate, and passes through the clearance connection of C-type frame top plate, regulation and control switch is rotatably set above regulation and control shaft, regulation and control switch includes fixedly connected tablet and second hinged part, second hinged part is rotatably connected with first hinged part, the shaft hole of second hinged part is outward eccentric.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, specifically a manual split-leaf multi-blade air volume regulating valve. Background Technology

[0002] The manually operated, split-leaf multi-blade airflow control valve is a key component of ventilation and air conditioning systems, specifically designed for precise control of airflow volume and direction within ducts. Its main body consists of multiple sets of aluminum alloy or galvanized steel blades, each set symmetrically arranged around a central axis, and synchronized in opposite directions via an external linkage mechanism. When the manual actuator drives the linkage, the blades open or close in pairs, forming a balanced, low-resistance channel, reducing airflow turbulence and lowering operating noise.

[0003] The authorization announcement number (CN 210107655 U) discloses a novel manual multi-leaf opposing control valve, which can conveniently and reliably adjust the opening degree of each air volume regulating blade while the outer shell is wrapped with heat insulation material. This significantly improves the regulation efficiency, saves valuable time, enhances the user's experience of using the multi-leaf opposing control valve, and is conducive to its widespread application, thus having significant practical significance in production.

[0004] However, in practical applications, the following problems still exist: First, the ventilation volume of the regulating valve cannot be quantitatively displayed, and the opening and closing angle of the fan blades needs to be adjusted by the experience of the staff during operation; Second, after long-term use, the fan blades are prone to deformation and need to be replaced or repaired, which not only affects work efficiency but also increases production costs. Summary of the Invention

[0005] The purpose of this invention is to solve the problems mentioned in the background art, and thus proposes a manual split-leaf multi-blade airflow regulating valve. This invention, by setting up a control component, providing an indicator arrow on the side of the C-shaped frame upper plate, and a scale on the circumferential surface of the rod head, accurately displays the opening and closing angle of the fan blades, improving the airflow accuracy of the regulating valve, and thereby improving the quality of production and daily life.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A manually operated, split-leaf multi-blade airflow regulating valve includes a valve body and an airflow regulating component, the airflow regulating component being disposed inside the valve body. It also includes a linkage component and a control component. The linkage component is disposed on the top surface of the valve body, and the control component is disposed on the top surface of the linkage component. The control component includes a C-shaped frame fixed above the linkage component. Upper and lower circular teeth are respectively provided on the inner sides of the upper and lower plates of the C-shaped frame. An indicator arrow is provided on the side of the upper plate of the C-shaped frame. A control rod is disposed between the upper and lower circular teeth. The control rod includes a rod post and a rod head. Glands are provided on the upper and lower surfaces of the rod head, engaging with the upper and lower circular teeth. A groove is formed on the top surface of the rod head. A circular shaft is set at the center and rotatably connected to the center of the upper circular tooth. A circular shaft is set at the center of the bottom surface of the rod head and passes through the lower circular tooth to be fixedly connected to the linkage assembly. A scale is set on the circumferential surface of the rod head. An adjustment shaft is set in the middle of the C-shaped frame. The adjustment shaft includes a shaft column and a first hinge. The first hinge is fixed on the upper surface of the shaft column. The shaft column is fixedly connected to the bottom plate of the C-shaped frame and passes through the gap of the top plate of the C-shaped frame. An adjustment switch is rotatably set above the adjustment shaft. The adjustment switch includes a pressure plate and a second hinge that are fixedly connected. The second hinge is rotatably connected to the first hinge. The shaft hole of the second hinge is set eccentrically outward.

[0008] Preferably, the valve body includes a valve body frame, and a first valve body skirt and a second valve body skirt disposed on both sides of the valve body frame, and bearing seats are disposed on the inner sides of the upper and lower sides of the valve body frame.

[0009] Preferably, the air volume regulating component includes a fan blade shaft and fan blades, with the fan blade shaft fixed in the middle of the fan blades and both ends of the fan blade shaft rotatably disposed in bearing seats.

[0010] Preferably, a front sealing strip is provided on the left side of the fan blade and a rear sealing strip is provided on the right side of the fan blade, and the front and rear sealing strips of two adjacent air volume regulating components cooperate to form a sealing structure.

[0011] Preferably, the valve body further includes a sealing plate, which is disposed between the two inner walls of the valve body frame. The sealing plate on the left side cooperates with the front sealing strip of the left fan blade to form a sealing structure, and the sealing plate on the right side cooperates with the rear sealing strip of the right fan blade to form a sealing structure.

[0012] Preferably, the valve body further includes symmetrically arranged circular grooves, the number of which is equal to the number of airflow regulating components, the length of the front sealing strip and the rear sealing strip is less than that of the fan blade, the length of the fan blade extending from the top and bottom sides is equal to the depth of the circular groove, and the fan blade extends into the circular groove.

[0013] Preferably, the linkage assembly includes a drive gear and a driven gear, and a chain connecting the drive gear and the driven gear. The drive gear and the driven gear are respectively fixedly connected to the fan blade shaft below them. The drive gear is fixed above the rod head and below it. A protective plate groove is provided above the drive gear and the driven gear. The protective plate groove is fixed to the top surface of the valve body frame by bolts.

[0014] Preferably, positioning holes are provided on the first valve body skirt and the second valve body skirt.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model improves the airflow accuracy of the regulating valve by setting up a control component, setting an indicator arrow on the side of the upper plate of the C-shaped frame, and setting a scale on the circumferential surface of the rod head to accurately display the opening and closing angle of the fan blades, thereby improving the quality of production and life.

[0017] 2. This utility model improves the sealing effect and prevents air leakage when the fan blades are closed by setting a front sealing strip and a rear sealing strip on the fan blades and a sealing sheet on the inner wall of the valve body frame, thus meeting the high standards of industrial production requirements.

[0018] 3. This utility model protects the upper and lower sides of the fan blades by setting a circular groove on the valve body, allowing the fan blades to rotate within the groove. This prevents deformation caused by excessive wind pressure, increases the maintenance and replacement cycle, improves work efficiency, and saves costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the valve body and linkage assembly structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the air volume regulating component of this utility model;

[0022] Figure 4 Appendix to this utility model Figure 1 Enlarged view of a portion of point A inside.

[0023] Wherein: 1. Valve body; 11. First valve body skirt; 12. Second valve body skirt; 13. Valve body frame; 14. Sealing plate; 15. Circular groove; 16. Bearing seat; 17. Positioning hole;

[0024] 2. Airflow regulating component; 21. Fan blade shaft; 22. Fan blade; 23a. Front sealing strip; 23b. Rear sealing strip;

[0025] 3. Linkage components; 31. Driving gear; 32. Chain; 33. Driven gear;

[0026] 4. Control components; 41. C-frame; 411. Upper circular tooth; 412. Lower circular tooth; 413. Indicator arrow; 42. Control shaft; 421. Shaft post; 422. First hinge; 43. Control switch; 431. Pressure plate; 432. Second hinge; 44. Control rod; 441. Rod post; 442. Rod head; 443. Dial. Detailed Implementation

[0027] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] Example 1, as Figure 1 and Figure 4 As shown, a manual split-leaf multi-blade airflow regulating valve includes a valve body 1 and an airflow regulating component 2. The airflow regulating component 2 is disposed inside the valve body 1. It also includes a linkage component 3 and a control component 4. The linkage component 3 is disposed on the top surface of the valve body 1, and the control component 4 is disposed on the top surface of the linkage component 3. The airflow regulating component 2 changes the size of the internal communication space of the valve body 1 by its own rotation angle. The linkage component 3 synchronously controls the fan blades 22 inside the airflow regulating component 2, reducing the number of control components 4 and lowering the failure rate. The control component 4 can receive and adjust the rotation angle of the airflow regulating component 2.

[0029] The control component 4 includes a C-shaped frame 41, which is fixed above the linkage component 3. The inner sides of the upper and lower plates of the C-shaped frame 41 are respectively provided with upper circular teeth 411 and lower circular teeth 412. An indicator arrow 413 is provided on the side of the upper plate of the C-shaped frame 41. A control rod 44 is provided between the upper circular teeth 411 and lower circular teeth 412. The control rod 44 includes a rod post 441 and a rod head 442. The rod head 442 has grooves on its upper and lower surfaces that mesh with the upper and lower circular teeth 411 and 412. A circular shaft is located at the center of the top surface of the rod head 442 and is rotatably connected to the center of the upper circular teeth 411. A circular shaft is located at the center of the bottom surface of the rod head 442 and passes through the lower circular teeth 412 to connect with the linkage component. Component 3 is fixedly connected. The circumferential surface of the rod head 442 is provided with a scale 443. The C-shaped frame 41 is provided with an adjustment shaft 42 in the middle. The adjustment shaft 42 includes a shaft post 421 and a first hinge member 422. The first hinge member 422 is fixed on the upper surface of the shaft post 421. The shaft post 421 is fixedly connected to the bottom plate of the C-shaped frame 41 and passes through the gap of the top plate of the C-shaped frame 41. An adjustment switch 43 is rotatably provided above the adjustment shaft 42. The adjustment switch 43 includes a pressure plate 431 and a second hinge member 432 that are fixedly connected. The second hinge member 432 is rotatably connected to the first hinge member 422. The shaft hole of the second hinge member 432 is eccentrically set outward.

[0030] It should be noted that: when the control switch 43 is pressed down to the horizontal position, the lower end of the second hinge 432 presses against the upper plate of the C-shaped frame 41, reducing the distance between the upper and lower plates of the C-shaped frame 41. This causes the upper and lower circular teeth 411 and 412 to engage with the rod head 442, limiting the control rod 44 and preventing it from rotating. When the control switch 43 is lifted to the vertical position, because the second hinge 432 is eccentrically hinged to the first hinge 422, the lower end of the second hinge 432 is closer to the upper plate of the C-shaped frame 41. The distance between the upper and lower plates of the C-frame 41 is reduced, and the upper plate of the C-frame 41 is raised, increasing the distance between the upper and lower plates of the C-frame 41. This allows the upper and lower circular teeth 411 and 412 to disengage from the rod head 442, enabling the control rod 44 to control the rotation of the linkage component 3, thereby adjusting the opening and closing angle of the fan blade 22. An indicator arrow 413 is provided on the side of the upper plate of the C-frame 41, and a scale 443 is provided on the circumferential surface of the rod head 442 to accurately display the opening and closing angle of the fan blade 22, improving the accuracy of the airflow of the regulating valve, and thus improving the quality of production and daily life.

[0031] like Figure 2 As shown, the valve body 1 includes a valve body frame 13, and a first valve body skirt 11 and a second valve body skirt 12 disposed on both sides of the valve body frame 13. Bearing seats 16 are disposed on the inner sides of the upper and lower sides of the valve body frame 13.

[0032] like Figure 3 As shown, the airflow regulating component 2 includes a fan blade shaft 21 and a fan blade 22. The fan blade shaft 21 is fixed in the middle of the fan blade 22, and both ends of the fan blade shaft 21 are rotatably disposed in the bearing housing 16. A front sealing strip 23a is provided on the left side of the fan blade 22, and a rear sealing strip 23b is provided on the right side of the fan blade 22. The front sealing strip 23a and the rear sealing strip 23b of two adjacent airflow regulating components 2 cooperate to form a sealing structure.

[0033] like Figure 2 and Figure 3 As shown, the valve body 1 also includes a sealing plate 14, which is disposed between the left and right inner walls of the valve body frame 13. The sealing plate 14 on the left side cooperates with the front sealing strip 23a of the left fan blade 22 to form a sealing structure, and the sealing plate 14 on the right side cooperates with the rear sealing strip 23b of the right fan blade 22 to form a sealing structure.

[0034] The valve body 1 also includes symmetrically arranged circular grooves 15. The number of circular grooves 15 is equal to the number of air volume regulating components 2. The lengths of the front sealing strip 23a and the rear sealing strip 23b are less than the lengths of the fan blades 22. The lengths of the fan blades 22 extending from the top and bottom sides are equal to the depth of the circular grooves 15. The fan blades 22 extend into the circular grooves 15 and rotate within the circular grooves 15. This protects the top and bottom sides of the fan blades 22, preventing deformation due to excessive air pressure, increasing the maintenance and replacement cycle, improving work efficiency, and saving costs.

[0035] The linkage component 3 includes a drive gear 31 and a driven gear 33, and a chain 32 connecting the drive gear 31 and the driven gear 33. The drive gear 31 and the driven gear 33 are respectively fixedly connected to the fan blade shaft 21 below them. The drive gear 31 is fixed above the rod head 442. A protective plate groove is provided above the drive gear 31 and the driven gear 33. The protective plate groove is fixed to the top surface of the valve body frame 13 by bolts.

[0036] like Figure 1 As shown, positioning holes 17 are provided on the first valve body skirt 11 and the second valve body skirt 12.

[0037] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and do not require that this utility model be constructed or operated in a specific orientation, and therefore should not be construed as limiting this utility model. The terms "connected" and "linked" in this utility model should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0038] The above description represents the preferred operating mode of this utility model. The specific operating mode description is only for better understanding the concept of this utility model. For those skilled in the art, several improvements or equivalent substitutions can be made based on the principles of this utility model, and these improvements or equivalent substitutions are also considered to fall within the protection scope of this utility model.

Claims

1. A manually operated split-leaf multi-blade airflow regulating valve, comprising a valve body (1) and an airflow regulating component (2), wherein the airflow regulating component (2) is disposed inside the valve body (1), characterized in that: It also includes a linkage component (3) and a control component (4), wherein the linkage component (3) is disposed on the top surface of the valve body (1) and the control component (4) is disposed on the top surface of the linkage component (3); The control component (4) includes a C-shaped frame (41), which is fixed above the linkage component (3). The inner sides of the upper and lower plates of the C-shaped frame (41) are respectively provided with upper circular teeth (411) and lower circular teeth (412). An indicator arrow (413) is provided on the side of the upper plate of the C-shaped frame (41). A control rod (44) is provided between the upper circular teeth (411) and the lower circular teeth (412). The control rod (44) includes a rod post (441) and a rod head (442). The rod head (442) has tooth grooves on its upper and lower surfaces, which mesh with the upper circular teeth (411) and the lower circular teeth (412). A circular shaft is provided at the center of the top surface of the rod head (442), which is rotatably connected to the center position of the upper circular teeth (411). A circular shaft is provided at the center of the bottom surface of the rod head (442), which passes through the lower circular teeth (412) and is linked. The component (3) is fixedly connected. The circumferential surface of the rod head (442) is provided with a dial (443). The middle of the C-shaped frame (41) is provided with an adjustment shaft (42). The adjustment shaft (42) includes a shaft column (421) and a first hinge (422). The first hinge (422) is fixed on the upper surface of the shaft column (421). The shaft column (421) is fixedly connected to the bottom plate of the C-shaped frame (41) and passes through the gap of the top plate of the C-shaped frame (41). An adjustment switch (43) is rotatably provided above the adjustment shaft (42). The adjustment switch (43) includes a pressure plate (431) and a second hinge (432) that are fixedly connected. The second hinge (432) is rotatably connected to the first hinge (422). The shaft hole of the second hinge (432) is eccentrically set outward.

2. The manually operated split-leaf multi-blade air volume regulating valve according to claim 1, characterized in that: The valve body (1) includes a valve body frame (13), and a first valve body skirt (11) and a second valve body skirt (12) disposed on both sides of the valve body frame (13). Bearing seats (16) are provided on the inner sides of the upper and lower sides of the valve body frame (13).

3. A manually operated, split-leaf multi-blade airflow regulating valve according to claim 2, characterized in that: The air volume regulating component (2) includes a fan blade shaft (21) and a fan blade (22). The fan blade shaft (21) is fixed in the middle of the fan blade (22), and the two ends of the fan blade shaft (21) are rotatably arranged in the bearing seat (16).

4. A manually operated, split-leaf multi-blade airflow regulating valve according to claim 3, characterized in that: A front sealing strip (23a) is provided on the left side of the fan blade (22), and a rear sealing strip (23b) is provided on the right side of the fan blade (22). The front sealing strip (23a) and the rear sealing strip (23b) of two adjacent air volume regulating components (2) cooperate to form a sealing structure.

5. A manually operated, split-leaf multi-blade airflow regulating valve according to claim 4, characterized in that: The valve body (1) also includes a sealing plate (14), which is disposed between the left and right inner walls of the valve body frame (13). The sealing plate (14) on the left side cooperates with the front sealing strip (23a) of the left fan blade (22) to form a sealing structure, and the sealing plate (14) on the right side cooperates with the rear sealing strip (23b) of the right fan blade (22) to form a sealing structure.

6. A manually operated, split-leaf multi-blade airflow regulating valve according to claim 4, characterized in that: The valve body (1) also includes symmetrically arranged circular grooves (15) on the upper and lower sides. The number of the circular grooves (15) is equal to the number of air volume regulating components (2). The lengths of the front sealing strip (23a) and the rear sealing strip (23b) are less than the fan blades (22). The fan blades (22) extend out on the upper and lower sides for a length equal to the depth of the circular grooves (15). The fan blades (22) extend into the circular grooves (15).

7. A manually operated, split-leaf multi-blade airflow regulating valve according to claim 3, characterized in that: The linkage component (3) includes a drive gear (31) and a driven gear (33), and a chain (32) connecting the drive gear (31) and the driven gear (33). The drive gear (31) and the driven gear (33) are respectively fixedly connected to the fan blade shaft (21) below them. The drive gear (31) is fixed above the rod head (442) below. A protective plate groove is provided above the drive gear (31) and the driven gear (33). The protective plate groove is fixed to the top surface of the valve body frame (13) by bolts.

8. A manually operated, split-leaf multi-blade airflow regulating valve according to claim 2, characterized in that: Positioning holes (17) are provided on the first valve body skirt (11) and the second valve body skirt (12).

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