A valve body closed type split multi-leaf regulating valve

Abstract

The utility model relates to the technical field of air volume regulating valves, and in particular to a valve body-enclosed split multi-leaf regulating valve, which can protect regulating components, avoid external influences on the coordinated transmission between components, reduce the failure rate, increase the service life, facilitate the replacement of damaged air volume regulating blades, and improve the convenience of replacing damaged air volume regulating blades; it includes a valve body, the left and right ends of the valve body are fixedly connected with connecting flanges, two groups of regulating rotating rods are rotatably installed in the interior of the valve body, the top of the regulating rotating rod passes through the top of the valve body and is connected to a driving assembly, and two air volume regulating blades are installed on the regulating rotating rod through a disassembly assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of air volume regulating valves, in particular to a valve body sealed split multi-leaf regulating valve. Background Art

[0002] In order to adjust the air volume in the ventilation system, air volume regulating valves are usually installed at the ventilation ducts, air supply ports and return air ports of the ventilation system to meet the requirements of air volume for different users and different environments. The air volume regulating valve is a valve that controls the air volume by adjusting the opening and closing angles of the blades, wherein the split multi-leaf air volume regulating valve is one of many air volume regulating valves. Prior art publication number CN206487883U proposes an electric split multi-leaf air volume regulating valve, comprising: a regulating valve frame, blades, an electric actuator, a transmission spindle, a connecting rod transmission device, a blade shaft, a heat insulation board, a connecting plate and a sleeve, characterized in that: the electric actuator is arranged at the upper end of the regulating valve frame, the electric actuator is interconnected with the transmission spindle, the heat insulation board is arranged between the regulating valve frame and the electric actuator, the connecting rod transmission device is arranged at the lower end of the heat insulation board, and the transmission spindle passes through the regulating valve frame and is interconnected with the connecting rod transmission device. However, the regulating mechanism is exposed to the air and is easily affected by external factors that affect the normal operation of the regulating mechanism and the transmission of the mechanism, resulting in a high adjustment failure rate. The blades are easily corroded when used in a humid environment for a long time. The corroded air volume regulating blades cannot accurately guide the wind direction, and the air volume regulating blades and the support rods are connected by welding, which makes it inconvenient to replace the air volume regulating blades. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a valve body-enclosed double-leaf regulating valve that can protect the regulating components, avoid external influences on the coordinated transmission between components, reduce the failure rate, increase the service life, facilitate the replacement of damaged air volume regulating blades, and improve the convenience of replacing damaged air volume regulating blades.

[0004] The utility model discloses a valve body sealed split multi-leaf regulating valve, comprising a valve body, wherein the left and right ends of the valve body are fixedly connected with connecting flanges, two groups of regulating rotating rods are respectively rotatably installed in the interior of the valve body, the top of the regulating rotating rod passes through the top of the valve body and is connected with a driving component, and two air volume regulating blades are installed on the regulating rotating rod through a disassembly component; the valve body is installed on the air duct through the connecting flange, and the two groups of regulating rotating rods are driven by the driving component to rotate in opposite directions, thereby driving the air volume regulating blades to rotate, adjusting the opening and closing between the front and rear groups of air volume regulating blades, adjusting the air volume, and guiding the air so that the air flows in the middle of the valve body at the same time, and the air volume regulating blades can be easily replaced by disassembling the component, thereby improving the convenience of replacing the damaged air volume regulating blades.

[0005] Preferably, the disassembly assembly includes a mounting frame, a pressure plate and fixing bolts. The mounting frame is relatively mounted on the front and rear ends of the outer wall of the adjusting rotating rod. A mounting groove is opened on the mounting frame, and the air volume adjusting blade is placed in the mounting groove. The pressure plate cover is mounted on one side of the mounting groove of the mounting frame. A plurality of fixing bolts are screwed on the pressure plate to connect the mounting frame, the pressure plate and the air volume adjusting blade. Unscrew the fixing bolts, remove the pressure plate from the mounting frame, and take the air volume adjusting blade out of the mounting groove, so as to facilitate the replacement of damaged air volume adjusting blades, improve the convenience of replacing damaged air volume adjusting blades, and ensure the sealing of the air volume adjusting blades.

[0006] Preferably, the driving assembly includes multiple worm gears, a dual-output transmission, a servo motor and two worms. The top of the adjusting rotating rod rotates through the top of the valve body and a worm gear is fixedly installed. The dual-output transmission is fixedly installed in the middle of the top end of the valve body. The input end of the dual-output transmission is connected to the output end of the servo motor. The output ends on both sides of the dual-output transmission are connected to worms, and the worms are meshed with the worm gears. Starting the servo motor drives the worm gear to rotate through the dual-output transmission, and the worm gear drives the front and rear groups of adjusting rotating rods to rotate in opposite directions through the worm gear, so that the air volume adjusting blades rotate to adjust the air volume, and at the same time guide the air to flow in the middle of the valve body.

[0007] Preferably, a plurality of upper blocks are installed on the inner wall of the valve body at the top left side of the air volume regulating blade, and lower blocks are installed on the front and rear sides of the inner wall of the valve body; the upper and lower blocks can increase the sealing and reduce the leakage after the air volume regulating blade is closed.

[0008] Preferably, a protective box is fixedly installed on the top of the valve body, the worm gear, dual-output transmission and servo motor are located inside the protective box, and the worm is rotatably installed inside the protective box; the protective box can protect the adjusting components to avoid external influences on the transmission coordination between components, reduce the failure rate and increase the service life.

[0009] Preferably, overlapping grooves are provided at the positions where the front and rear groups of air volume regulating blades contact each other; after closing the valve body, the front and rear groups of air volume regulating blades are in mating contact through the overlapping grooves, thereby improving the sealing between the two groups of air volume regulating blades and reducing leakage.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the valve body is installed on the air duct through the connecting flange, and the two groups of adjusting levers are driven to rotate in opposite directions through the driving component, thereby driving the air volume adjusting blades to rotate, adjusting the opening and closing between the front and rear groups of air volume adjusting blades, adjusting the air volume, and guiding the air to flow in the middle of the valve body. The air volume adjusting blades can be easily replaced by disassembling the components, thereby improving the convenience of replacing the damaged air volume adjusting blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0013] Figure 3 It is a left-side structural schematic diagram of the utility model;

[0014] Figure 4 It is a right side cross-sectional structural schematic diagram of the utility model;

[0015] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model viewed from above;

[0016] Markings in the attached figure: 1. valve body; 2. connecting flange; 3. adjusting lever; 4. mounting frame; 5. air volume adjusting blade; 6. pressure plate; 7. fixing bolt; 8. upper stopper; 9. lower stopper; 10. protective box; 11. worm gear; 12. dual-output transmission; 13. servo motor; 14. worm; 15. lap groove. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0018] like Figures 1 to 5 As shown, the left and right ends of the valve body 1 are fixedly connected with connecting flanges 2, two groups of adjusting rotating rods 3 are rotatably installed inside the valve body 1, and the mounting frame 4 is relatively installed at the front and rear ends of the outer wall of the adjusting rotating rod 3. The mounting frame 4 is provided with a mounting groove, and the air volume adjusting blade 5 is placed in the mounting groove. The pressure plate 6 cover is installed on one side of the mounting groove of the mounting frame 4. A plurality of fixing bolts 7 are screwed on the pressure plate 6 to connect the mounting frame 4, the pressure plate 6 and the air volume adjusting blade 5. The contact position of the front and rear groups of air volume adjusting blades 5 is provided with a lap groove 15, and the top of the adjusting rotating rod 3 rotates through the top of the valve body 1 and is fixedly installed with a worm gear 11 The dual-output transmission 12 is fixedly installed at the middle of the top of the valve body 1. The input end of the dual-output transmission 12 is connected to the output end of the servo motor 13. The output ends on both sides of the dual-output transmission 12 are connected with worms 14, which mesh with the worm gear 11. A protection box 10 is fixedly installed on the top of the valve body 1. The worm gear 11, the dual-output transmission 12 and the servo motor 13 are located inside the protection box 10. The worm 14 is rotatably installed inside the protection box 10. A plurality of upper blocks 8 are installed on the inner wall of the valve body 1 at the top of the left side of the air volume adjustment blade 5, and lower blocks 9 are installed on the front and rear sides of the inner wall of the valve body 1.

[0019] The valve body 1 is installed on the air duct through the connecting flange 2, and the servo motor 13 is started to drive the worm 14 to rotate through the dual-output transmission 12. The worm 14 drives the front and rear groups of adjusting rods 3 to rotate in opposite directions through the worm gear 11, so that the air volume adjusting blade 5 rotates to adjust the air volume. At the same time, the air is guided so that the air flows in the middle of the valve body 1. The regulating components can be protected by the protective box 10 to avoid external influences on the coordinated transmission between the components, reduce the failure rate, and increase the service life. The upper block 8 and the lower block 9 can increase the sealing after the air volume adjusting blade 5 is closed. After the valve body 1 is closed, the front and rear groups of air volume adjusting blades 5 are in contact through the overlapping groove 15 to improve the sealing between the two groups of air volume adjusting blades 5 and reduce the leakage. The fixing bolts 7 are unscrewed, the pressure plate 6 is removed from the mounting frame 4, and the air volume adjusting blade 5 is taken out of the mounting groove, which is convenient for replacing the damaged air volume adjusting blade 5, improves the convenience of replacing the damaged air volume adjusting blade 5, and ensures the sealing of the air volume adjusting blade 5.

[0020] like Figures 1 to 5 As shown, the utility model is a valve body sealed split multi-leaf regulating valve, which, when working, installs the valve body 1 on the air duct through the connecting flange 2, starts the servo motor 13 to drive the worm 14 to rotate through the dual-output transmission 12, and the worm 14 drives the front and rear groups of regulating rotating rods 3 to rotate in opposite directions through the worm gear 11, so that the air volume regulating blades 5 rotate to adjust the air volume, and the upper block 8 and the lower block 9 can make the front and rear groups of air volume regulating blades 5 cooperate and contact through the overlapping groove 15 after the air volume regulating blades 5 are closed, so as to increase the sealing and reduce the leakage, unscrew the fixing bolts 7, remove the pressure plate 6 from the mounting frame 4, and take out the air volume regulating blades 5 from the mounting groove, so as to facilitate the replacement of damaged air volume regulating blades 5.

[0021] The dual-output transmission 12 and servo motor 13 of the valve body-enclosed split multi-leaf regulating valve of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual without the need for creative work by technicians in this field.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A valve body sealed split multi-leaf regulating valve, characterized in that: The invention comprises a valve body (1), the left and right ends of the valve body (1) are fixedly connected with connecting flanges (2), two groups of adjusting rotating rods (3) are respectively rotatably mounted inside the valve body (1), the top of the adjusting rotating rod (3) passes through the top of the valve body (1) and is connected to the driving component, and two air volume adjusting blades (5) are mounted on the adjusting rotating rod (3) through a disassembly component; the disassembly component comprises a mounting frame (4), a pressure plate (6) and a fixing bolt (7), the mounting frame (4) is relatively mounted on the front and rear ends of the outer wall of the adjusting rotating rod (3), the mounting frame (4) is provided with a mounting groove, the air volume adjusting blade (5) is placed in the mounting groove, the pressure plate (6) is covered and mounted on one side of the mounting groove of the mounting frame (4), and a plurality of fixing bolts (7) are screwed on the pressure plate (6) to connect the mounting frame (4), the pressure plate (6) and the air volume adjusting blade (5).

2. A valve body sealed split multi-leaf regulating valve as claimed in claim 1, characterized in that: The driving assembly comprises a plurality of worm gears (11), a dual-output transmission (12), a servo motor (13) and two worms (14); the top of the regulating rotating rod (3) rotates through the top of the valve body (1) and the worm gear (11) is fixedly installed; the dual-output transmission (12) is fixedly installed at the middle of the top of the valve body (1); the input end of the dual-output transmission (12) is connected to the output end of the servo motor (13); the output ends on both sides of the dual-output transmission (12) are connected to the worm gears (14); the worm gears (14) are meshed with the worm gears (11).

3. A valve body sealed split multi-leaf regulating valve as claimed in claim 1, characterized in that: A plurality of upper blocks (8) are installed on the inner wall of the valve body (1) at the top left side of the air volume regulating blade (5), and lower blocks (9) are installed on the front and rear sides of the inner wall of the valve body (1).

4. A valve body sealed split multi-leaf regulating valve as claimed in claim 3, characterized in that: A protection box (10) is fixedly mounted on the top of the valve body (1); a worm gear (11), a dual-output transmission (12) and a servo motor (13) are located inside the protection box (10); and a worm (14) is rotatably mounted inside the protection box (10).

5. A valve body sealed split multi-leaf regulating valve as claimed in claim 1, characterized in that: An overlapping groove (15) is provided at the contact position between the front and rear groups of air volume regulating blades (5).

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