Large-air-volume electric combined air valve

Abstract

The utility model discloses a large-air-volume electric combined air valve which comprises an installation frame, and blades are fixedly installed in a reinforcing frame through fixing screws. The first clamping block and the second clamping block abut against the connecting column, and a driving mechanism used for adjusting the fixing mechanism is arranged on the side portion of the mounting frame. Through the design of the structures of the reinforcing frame, the connecting column, the first clamping block, the second clamping block and the like, the blades are installed in the reinforcing frame, so that the strength of the blades can be improved through the reinforcing frame, the pressure bearing capacity of the blades is improved, and the situation that the blades are not tightly closed when the electric combined air valve is closed due to deformation of the blades is prevented; through cooperation of the driving mechanism and the fixing mechanism, the first clamping block and the second clamping block can abut against the connecting column, so that the reinforcing frame can be positioned and fixed, the reinforcing frame is prevented from shaking in the using process, then the blade can be positioned and fixed through the reinforcing frame, and the stability of the blade is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of combined air valves, in particular to a large-air-volume electric combined air valve. Background Art

[0002] A combined air valve is generally a large valve installed on the air shafts and air ducts of the smoke exhaust system in subway tunnel projects. In case of a fire, it plays the role of smoke exhaust, smoke isolation and fire resistance, can withstand a wind pressure of 2000 pa, and can meet the requirements of smoke leakage and fire resistance integrity within a certain period of time. In the prior art, an electric combined air valve for subway (application number: CN202122569573.4) is provided. The utility model includes a frame, an installation bottom plate is fixedly installed at the lower end of the frame, and a driving vane is arranged inside the frame. A driven vane is arranged inside the frame. The driving... is equipped with a connecting piece, and the connecting piece includes a connecting plate, a first fastening screw, a second fastening screw and an installation bolt; by externally arranging the servo motor and the transmission mechanism, the installation work is facilitated, and at the same time, the maintenance and replacement are convenient. The transmission mechanism adopts structures such as sprockets and gears, which can effectively carry out transmission and ensure the transmission accuracy. Through the arranged connecting piece, the connecting piece is connected with the frame by screws, which is convenient for operation and avoids unnecessary welding work. The first fastening screw and the second fastening screw are arranged in a staggered manner, which not only does not affect the normal installation connection, but also can ensure the stability after connection.

[0003] During the actual use of the above-mentioned electric combined air valve for subway, the external servo motor and the transmission mechanism are used to facilitate the installation and maintenance and replacement. However, there are still some problems, such as the poor strength of the valve body blades. After the long-term use of the electric combined air valve, the valve body blades are prone to deformation. When the valve blades of the electric combined air valve are closed, there are easily gaps between the valve blades, thus affecting the normal use of the electric combined air valve, and the stability of the valve body blades needs to be strengthened. Therefore, we need to propose a large-air-volume electric combined air valve. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a large-air-volume electric combined air valve to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A large-air-volume electric combined air valve includes an installation frame. Two groups of connecting rods are movably installed inside the installation frame. Blades are fixedly connected to the surfaces of the two groups of connecting rods. A strengthening mechanism is arranged inside the installation frame. The strengthening mechanism includes a strengthening frame and a connecting column. The connecting column is fixedly connected to the bottom of the strengthening frame. The connecting column is movably installed on the inner bottom of the installation frame. The blades are fixedly installed inside the strengthening frame through fixing screws.

[0006] A fixing mechanism for fixing the reinforcement frame is arranged at the bottom of the installation frame, and the fixing mechanism comprises a first clamping block and a second clamping block, the first clamping block and the second clamping block are pressed against the connecting column, and a driving mechanism for adjusting the fixing mechanism is arranged on the side of the installation frame.

[0007] Preferably, the fixing mechanism also includes a fixing plate, a limiting rod, a bidirectional threaded rod, a first slider and a second slider, the fixing plate is fixedly connected to the bottom of the mounting frame, the bidirectional threaded rod is movably installed in the fixing plate, and the first slider and the second slider are respectively threadedly installed on the left-handed thread and the right-handed thread of the bidirectional threaded rod.

[0008] Preferably, the limiting rod is fixedly connected to the fixing plate, the first slider and the second slider are both slidably mounted on the limiting rod, and the first clamping block and the second clamping block are respectively fixedly mounted on the sides of the first slider and the second slider.

[0009] Preferably, a slot is formed on each of the first card block and the second card block, one end of the connecting column extends to the bottom of the installation frame, and the connecting column is arranged in the slot.

[0010] Preferably, the driving mechanism includes a second driving motor, a mounting plate is fixedly connected to the side of the mounting frame, the second driving motor is fixedly mounted on the top of the mounting plate, and a protective shell is fixedly mounted on the top of the mounting plate.

[0011] Preferably, a first bevel gear is fixedly mounted on the output shaft of the second drive motor, one end of the bidirectional threaded rod is fixedly connected to a second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0012] Preferably, the upper ends of the two groups of connecting rods are respectively fixedly connected with the second synchronous pulley and the third synchronous pulley, the top of the mounting frame is fixedly installed with a mounting cover, the top of the mounting cover is fixedly installed with a first drive motor, and the output shaft of the first drive motor is fixedly installed with a first synchronous pulley, and the first synchronous pulley is transmitted to the second synchronous pulley and the third synchronous pulley through a synchronous belt.

[0013] Preferably, a protective cover is fixedly mounted on the top of the mounting cover, and the first drive motor is arranged in the protective cover.

[0014] Preferably, the first synchronous pulley, the synchronous belt, the second synchronous pulley and the third synchronous pulley are all arranged in a mounting cover.

[0015] Preferably, the mounting frame is provided with mounting feet, the blades are provided with positioning grooves, the connecting column is provided with slots, and the lower end of the connecting rod is inserted into the slots of the connecting column.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] Through the design of structures such as the reinforcement frame, connecting column, first clamping block and second clamping block, by installing the blade in the reinforcement frame, the strength of the blade can be improved through the reinforcement frame, thereby improving the pressure-bearing capacity of the blade and preventing the blade from deforming, resulting in the situation that the electric combined air valve cannot be tightly closed when it is closed. Through the cooperation of the driving mechanism and the fixing mechanism, the first clamping block and the second clamping block can be tightly pressed against the connecting column, so as to position and fix the reinforcement frame, prevent the reinforcement frame from shaking during use, and then the blade can be positioned and fixed through the reinforcement frame to improve the stability of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the present utility model;

[0019] Figure 2 is one of the structural schematic diagrams when the present utility model is disassembled;

[0020] Figure 3 is the second structural schematic diagram when the present utility model is disassembled;

[0021] Figure 4 is a structural schematic diagram of the reinforcement frame of the present utility model;

[0022] Figure 5 is a sectional structural schematic diagram of the reinforcement frame of the present utility model;

[0023] Figure 6 is a structural schematic diagram of the blade of the present utility model;

[0024] Figure 7 is the present utility model Figure 3 The enlarged structural schematic diagram of area A in.

[0025] In the figure: 1, mounting frame; 2, mounting cover; 3, first driving motor; 4, protective cover; 5, first synchronous pulley; 6, second synchronous pulley; 7, third synchronous pulley; 8, connecting rod; 9, blade; 10, positioning groove; 11, reinforcement frame; 12, fixing screw; 13, connecting column; 14, mounting plate; 15, second driving motor; 16, protective shell; 17, first bevel gear; 18, second bevel gear; 19, fixing plate; 20, limiting rod; 21, bidirectional threaded rod; 22, first slider; 23, second slider; 24, first clamping block; 25, second clamping block; 26, clamping groove; 27, slot; 28, mounting foot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-7 , the present invention provides a technical solution: a large-air-volume electric combined air valve, including an installation frame 1. Two groups of connecting rods 8 are movably installed in the installation frame 1. Blades 9 are fixedly connected to the surfaces of the two groups of connecting rods 8. A strengthening mechanism is arranged in the installation frame 1. The strengthening mechanism includes a strengthening frame 11 and a connecting column 13. The connecting column 13 is fixedly connected to the bottom of the strengthening frame 11. The connecting column 13 is movably installed on the inner bottom of the installation frame 1. The blade 9 is fixedly installed in the strengthening frame 11 through a fixing screw 12;

[0028] A fixing mechanism for fixing the strengthening frame 11 is arranged at the bottom of the installation frame 1. The fixing mechanism includes a first clamping block 24 and a second clamping block 25. The first clamping block 24 and the second clamping block 25 are pressed against the connecting column 13. A driving mechanism for adjusting the fixing mechanism is arranged on the side of the installation frame 1;

[0029] Through the setting of the strengthening frame 11, the strength of the blade 9 can be improved through the strengthening frame 11, thereby improving the pressure-bearing capacity of the blade 9 and preventing the blade 9 from deforming and causing the electric combined air valve to not close tightly when it is closed;

[0030] The fixing mechanism further includes a fixing plate 19, a limiting rod 20, a bidirectional threaded rod 21, a first slider 22 and a second slider 23. The fixing plate 19 is fixedly connected to the bottom of the installation frame 1. The bidirectional threaded rod 21 is movably installed in the fixing plate 19. The first slider 22 and the second slider 23 are respectively threadedly installed on the left-handed thread and the right-handed thread of the bidirectional threaded rod 21. The limiting rod 20 is fixedly connected to the fixing plate 19. The first slider 22 and the second slider 23 are both slidably installed on the limiting rod 20. The first clamping block 24 and the second clamping block 25 are respectively fixedly installed on the sides of the first slider 22 and the second slider 23. Card slots 26 are opened on both the first clamping block 24 and the second clamping block 25. One end of the connecting column 13 extends to the bottom of the installation frame 1. The connecting column 13 is arranged in the card slot 26;

[0031] The driving mechanism includes a second driving motor 15, a mounting plate 14 is fixedly connected to the side of the mounting frame 1, the second driving motor 15 is fixedly installed on the top of the mounting plate 14, a protective shell 16 is fixedly installed on the top of the mounting plate 14, a first bevel gear 17 is fixedly installed on the output shaft of the second driving motor 15, and a second bevel gear 18 is fixedly connected to one end of the bidirectional threaded rod 21, and the first bevel gear 17 is meshed with the second bevel gear 18;

[0032] The upper ends of the two groups of connecting rods 8 are respectively fixedly connected with the second synchronous pulley 6 and the third synchronous pulley 7, the top of the mounting frame 1 is fixedly mounted with a mounting cover 2, the top of the mounting cover 2 is fixedly mounted with a first drive motor 3, the output shaft of the first drive motor 3 is fixedly mounted with a first synchronous pulley 5, the first synchronous pulley 5 is driven by the second synchronous pulley 6 and the third synchronous pulley 7 through a synchronous belt, the top of the mounting cover 2 is fixedly mounted with a protective cover 4, and the first drive motor 3 is arranged in the protective cover 4;

[0033] The first synchronous pulley 5, the synchronous belt, the second synchronous pulley 6 and the third synchronous pulley 7 are all arranged in the mounting cover 2, the mounting frame 1 is provided with a mounting foot 28, the blade 9 is provided with a positioning groove 10, the connecting column 13 is provided with a slot 27, and the lower end of the connecting rod 8 is inserted into the slot 27 of the connecting column 13;

[0034] By setting the positioning groove 10, when the blade 9 is installed on the reinforcing frame 11, the blade 9 can be positioned through the positioning groove 10, so that the blade 9 can be easily installed. When the blade 9 is installed on the reinforcing frame 11, the connecting rod 8 can be inserted into the slot 27;

[0035] During specific use, when the electric combination air valve needs to be closed, the first drive motor 3 works, and the output shaft of the first drive motor 3 rotates to drive the first synchronous pulley 5 to rotate, and the first synchronous pulley 5 cooperates with the synchronous belt to drive the second synchronous pulley 6 and the third synchronous pulley 7 to rotate, and the second synchronous pulley 6 and the third synchronous pulley 7 rotate to drive the connecting rod 8 to rotate, and the connecting rod 8 rotates to drive the blade 9 to rotate, so that the electric combination air valve can be closed, and the reinforcing frame 11 can be driven to rotate when the blade 9 rotates, and the reinforcing frame 11 can improve the strength of the blade 9, thereby improving the pressure bearing capacity of the blade 9, and preventing the blade 9 from deforming and causing the electric combination air valve to be not tightly closed when it is closed;

[0036] While the first drive motor 3 is operating, the second drive motor 15 operates. The output shaft of the second drive motor 15 rotates to drive the first bevel gear 17 to rotate. When the first bevel gear 17 rotates, it drives the second bevel gear 18 to rotate. When the second bevel gear 18 rotates, it drives the bidirectional threaded rod 21 to rotate. When the bidirectional threaded rod 21 rotates, the left-handed thread and the right-handed thread on the bidirectional threaded rod 21 drive the first slider 22 and the second slider 23 to move. When the first slider 22 and the second slider 23 move, they drive the first clamping block 24 and the second clamping block 25 to approach each other, so that the first clamping block 24 and the second clamping block 25 can be pressed against the connecting column 13 through the card slots 26, thereby positioning and fixing the reinforcing frame 11. Furthermore, the blade 9 can be fixed through the reinforcing frame 11 to improve the stability of the blade 9.

[0037] 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 principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large air volume electric combined air valve, comprising a mounting frame (1), characterized in that: Two groups of connecting rods (8) are movably installed in the installation frame (1), and blades (9) are fixedly connected to the surfaces of the two groups of connecting rods (8). A reinforcing mechanism is provided in the installation frame (1), and the reinforcing mechanism comprises a reinforcing frame (11) and a connecting column (13). The connecting column (13) is fixedly connected to the bottom of the reinforcing frame (11), and the connecting column (13) is movably installed on the inner bottom of the installation frame (1), and the blades (9) are fixedly installed in the reinforcing frame (11) by fixing screws (12); A fixing mechanism for fixing the reinforcing frame (11) is arranged at the bottom of the installation frame (1), the fixing mechanism comprising a first clamping block (24) and a second clamping block (25), the first clamping block (24) and the second clamping block (25) being tightly pressed against the connecting column (13), and a driving mechanism for adjusting the fixing mechanism is arranged at the side of the installation frame (1).

2. The large air volume electric combined air valve according to claim 1, characterized in that: The fixing mechanism further comprises a fixing plate (19), a limiting rod (20), a bidirectional threaded rod (21), a first sliding block (22) and a second sliding block (23); the fixing plate (19) is fixedly connected to the bottom of the installation frame (1); the bidirectional threaded rod (21) is movably mounted in the fixing plate (19); and the first sliding block (22) and the second sliding block (23) are respectively threadedly mounted on the left-handed thread and the right-handed thread of the bidirectional threaded rod (21).

3. A large air volume electric combined air valve according to claim 2, characterized in that: The limiting rod (20) is fixedly connected to the fixing plate (19); the first sliding block (22) and the second sliding block (23) are both slidably mounted on the limiting rod (20); and the first clamping block (24) and the second clamping block (25) are respectively fixedly mounted on the sides of the first sliding block (22) and the second sliding block (23).

4. The large air volume electric combined air valve according to claim 3 is characterized in that: A card slot (26) is provided on each of the first card block (24) and the second card block (25); one end of the connecting column (13) extends to the bottom of the installation frame (1); and the connecting column (13) is arranged in the card slot (26).

5. The large air volume electric combined air valve according to claim 2 is characterized in that: The driving mechanism comprises a second driving motor (15), a mounting plate (14) is fixedly connected to the side of the mounting frame (1), the second driving motor (15) is fixedly mounted on the top of the mounting plate (14), and a protective shell (16) is fixedly mounted on the top of the mounting plate (14).

6. A large air volume electric combined air valve according to claim 5, characterized in that: A first bevel gear (17) is fixedly mounted on the output shaft of the second drive motor (15), one end of the bidirectional threaded rod (21) is fixedly connected to a second bevel gear (18), and the first bevel gear (17) is meshed with the second bevel gear (18).

7. The large air volume electric combined air valve according to claim 1, characterized in that: The upper ends of the two groups of connecting rods (8) are respectively fixedly connected to a second synchronous pulley (6) and a third synchronous pulley (7); a mounting cover (2) is fixedly mounted on the top of the mounting frame (1); a first drive motor (3) is fixedly mounted on the top of the mounting cover (2); a first synchronous pulley (5) is fixedly mounted on the output shaft of the first drive motor (3); and the first synchronous pulley (5) is driven by a synchronous belt to the second synchronous pulley (6) and the third synchronous pulley (7).

8. The large air volume electric combined air valve according to claim 7, characterized in that: A protective cover (4) is fixedly mounted on the top of the mounting cover (2), and the first drive motor (3) is arranged inside the protective cover (4).

9. The large air volume electric combined air valve according to claim 8, characterized in that: The first synchronous pulley (5), the synchronous belt, the second synchronous pulley (6) and the third synchronous pulley (7) are all arranged in the mounting cover (2).

10. The large air volume electric combined air valve according to claim 1, characterized in that: The installation frame (1) is provided with an installation foot (28), the blade (9) is provided with a positioning groove (10), the connecting column (13) is provided with a slot (27), and the lower end of the connecting rod (8) is inserted into the slot (27) of the connecting column (13).

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