Door frame type fan valve

Abstract

The utility model relates to the technical field of fan valves, in particular to a door frame type fan valve which can effectively prevent a valve plate from shaking during opening and closing, improve stability, avoid the situation that the valve is not tightly opened and closed and improve practicability. Comprising a valve frame, connecting plates used for being connected with external pipelines are fixedly connected to the left end and the right end of the valve frame, four sets of mounting holes are formed in each set of connecting plates, a transmission shaft is rotationally installed in the center in the valve frame, and the front end of the transmission shaft is fixedly connected with the output end of a speed reducer; the bottoms of the two sets of sinking grooves are communicated with the interior of the valve frame and are provided with guiding openings, the two sets of valve plates are symmetrically and slidably installed on the valve frame through matching with the guiding openings, the outer sides of the two sets of valve plates are fixedly connected with sealing covers, the sealing covers are installed in the sinking grooves in a covering mode, and the inner side walls of the two sets of valve plates are fixedly connected with transmission racks. The two sets of transmission racks are meshed with the transmission gear in a centrosymmetric mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fan valve, in particular to a door frame type fan valve. BACKGROUND

[0002] The fan regulating valve is an indispensable central air conditioning terminal accessory in the ventilation, air conditioning and air purification engineering of industrial plant and civil building, is generally used in the air conditioner and ventilation system pipeline to adjust the air volume of the pipeline and can be used for mixing adjustment of fresh air and return air.

[0003] The existing valve shape is designed according to the pipeline cross section and is mostly square door frame type structure, but the existing door frame type fan valve is not stable enough because the valve plate shakes when opening and closing, and the valve plate can not be closed tightly after a long time, and the practicability is insufficient. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a door frame type fan valve which can effectively avoid the shaking of the valve plate when opening and closing, improve the stability, avoid the opening and closing of the valve plate not being tight, and improve the practicability.

[0005] TECHNICAL SCHEME

[0006] To achieve the above object, the utility model provides the following technical scheme: a door frame type fan valve, including valve frame and valve mechanism, both ends of the valve frame are fixedly connected with the connecting plate for connecting with the external pipeline, four groups of mounting holes are arranged on each group of connecting plates, the valve mechanism includes motor and two groups of valve plates, the motor is fixedly installed at the front end of the valve frame, a speed reducer is fixedly installed at the front end of the valve frame, the motor output end is fixedly connected with the speed reducer input end, a transmission shaft is rotatably installed in the central part of the valve frame, the transmission shaft front end is fixedly connected with the speed reducer output end, a transmission gear is fixedly sleeved on the transmission shaft, the top end and the bottom end of the valve frame are provided with sink grooves, the two groups of sink grooves are symmetrically arranged about the center of the transmission shaft, the bottom of the two groups of sink grooves is provided with a guide opening which is communicated with the inside of the valve frame, the two groups of valve plates are symmetrically and slidably installed on the valve frame through the cooperation of the guide openings, the outer sides of the two groups of valve plates are fixedly connected with sealing covers, the sealing covers are integrally formed with the valve plates, and the sealing covers are covered in the sink grooves, the inner walls of the two groups of valve plates are fixedly connected with transmission racks, and the two groups of transmission racks are symmetrically meshed with the transmission gear.

[0007] Preferably, the top end and the bottom end of the inside of the valve frame are provided with plug-in grooves matched with the valve plates, and the two groups of plug-in grooves are symmetrically arranged about the center of the transmission shaft, and the inner sides of the two groups of valve plates are respectively inserted into the two groups of plug-in grooves.

[0008] Preferably, the outer sides of the two groups of connecting plates are fixedly connected with back-shaped fastening pads.

[0009] Preferably, the bottoms of the two groups of sink grooves are fixedly connected with sealing rubber strips.

[0010] Preferably, the two groups of valve plates are provided with chamfers on the inner side edges.

[0011] Compared with the prior art, the utility model has the advantages that: when in use, the valve frame is installed into the pipeline of the ventilation system through the bolt connection mode, initially the valve plate is in the closed state, the sealing cover is covered on the sink, when opening, the motor is started, the motor drives the transmission shaft to rotate counterclockwise through the speed reducer, and then the transmission shaft drives the two groups of valve plates to slide outward along the guide opening through the meshing of the transmission gear and the transmission rack, so that the valve plate is stably opened, when closing, the valve plate is closed through the reverse rotation of the motor, the clockwise rotation of the transmission shaft driven by the speed reducer, the cooperation of the transmission gear and the transmission rack, the guiding cooperation of the valve plate and the guide opening, the double sealing structure of the two groups of valve plates, and the improved stability and practicality. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the axonometric structure schematic diagram of the utility model;

[0013] Figure 2 is the axonometric section structure schematic diagram of the utility model;

[0014] Figure 3 is the front view structure schematic diagram of the utility model Figure 2 ;

[0015] Figure 4 is the axonometric structure schematic diagram of the valve frame in the utility model;

[0016] Marked in the drawing: 1, valve frame; 2, connecting plate; 3, mounting hole; 4, motor; 5, speed reducer; 6, transmission shaft; 7, transmission gear; 8, valve plate; 9, sink; 10, guide opening; 11, sealing cover; 12, transmission rack; 13, plug-in slot; 14, back-shaped fastening pad; 15, sealing rubber strip; 16, chamfer. DETAILED DESCRIPTION

[0017] The specific implementation of the utility model will be described in further detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0018] EXAMPLE

[0019] Please refer to Figures 1-4The utility model discloses a door frame formula fan valve, including valve frame 1, motor 4 and two groups of valve plate 8, and the both ends of valve frame 1 are fixedly connected with the connecting plate 2 for and external pipeline connection, every group of connecting plate 2 all is equipped with four groups of mounting hole 3, and motor 4 is fixedly installed at valve frame 1 front end, and the front end fixed mounting of valve frame 1 has speed reducer 5, and the output end of motor 4 is fixedly connected with the input end of speed reducer 5, and the inside central rotation of valve frame 1 is installed with transmission shaft 6, and the front end of transmission shaft 6 is fixedly connected with the output end of speed reducer 5, and the transmission gear 7 of fixed sleeve is set up in transmission shaft 6 middle, and the top and bottom of valve frame 1 all are seted with the sink 9 of two groups of sink 9 about transmission shaft 6 center symmetry, and the bottom of two groups of sink 9 all are seted with the guiding mouth 10 of valve frame 1 inside intercommunication, and two groups of valve plate 8 are slidably installed on valve frame 1 through the cooperation center symmetry of guiding mouth 10, and the outside of two groups of valve plate 8 is fixedly connected with the sealing cover 11, and the sealing cover 11 is integrally formed with valve plate 8, and sealing cover 11 is covered in sink 9, and the inside wall of two groups of valve plate 8 all is fixedly connected with transmission rack 12, and the center symmetry of two groups of transmission rack 12 is engaged with transmission gear 7, when using, the valve frame 1 is installed to the pipeline of ventilation system through the bolt connection mode, initially valve plate 8 is in the closed state, and sealing cover 11 covers on sink 9, when opening, through starting motor 4, motor 4 drives transmission shaft 6 counterclockwise rotation through speed reducer 5, and then makes transmission shaft 6 drive two groups of valve plate 8 along guiding mouth 10 and slide outwards through the engagement of transmission gear 7 and transmission rack 12, makes valve plate 8 open steadily, when closing, again through the reverse rotation of motor 4, makes speed reducer 5 drive transmission shaft 6 clockwise rotation, can make valve plate 8 close, through the cooperation of transmission gear 7 and transmission rack 12, can make valve plate 8 keep steady when opening and closing, through the guiding cooperation of valve plate 8 and guiding mouth 10, can prevent valve plate 8 from appearing to shake when opening and closing, improve stability, and are sealed through two groups of valve plate 8, adopt double seal structure, avoid the situation that valve appears to open and close not strictly, improve practicality.

[0020] The inside top and bottom of valve frame 1 are set with plug-in groove 13 in cooperation with valve plate 8, and the two groups of plug-in groove 13 are about the center symmetry of transmission shaft 6, and the inside of two groups of valve plate 8 is inserted in two groups of plug-in groove 13 respectively, through setting plug-in groove 13, when valve plate 8 closes, can make valve plate 8 insert in plug-in groove 13, so that can make valve plate 8 close more tightly, improve the sealing property.

[0021] The outside of two groups of connecting plate 2 is fixedly connected with the back fastening pad 14, through setting back fastening pad 14, can make connecting plate 2 when butt joint with external pipeline, connect more tightly firm.

[0022] The bottom of two groups of sink 9 is fixedly connected with sealing rubber strip 15, through setting sealing rubber strip 15, can make sealing cover 11 when cover installs to sink 9 more tightly, further improve the sealing property.

[0023] The inner side edges of the two valve plates 8 are provided with chamfers 16; the chamfers 16 can make the valve plates 8 more easily and smoothly inserted into the insertion slots 13.

[0024] The door frame type fan valve of the utility model, its working principle, when using, installs the valve frame 1 into the pipeline of the ventilation system through the bolt connection mode, initially the valve plate 8 is in the closed state, and the sealing cover 11 is covered on the sink 9, when opening, through starting the motor 4, the motor 4 drives the transmission shaft 6 to rotate counterclockwise through the speed reducer 5, and then makes the transmission shaft 6 drive two groups of valve plates 8 to slide outward along the guide port 10 through the meshing of the transmission gear 7 and the transmission rack 12, makes the valve plate 8 open stably, when closing, again through the reverse rotation of the motor 4, makes the speed reducer 5 drive the transmission shaft 6 to rotate clockwise, can make the valve plate 8 close, through the cooperation of the transmission gear 7 and the transmission rack 12, can make the valve plate 8 keep stable when opening and closing, through the guiding cooperation of the valve plate 8 and the guide port 10, can prevent the valve plate 8 from shaking when opening and closing, ensures the stability of the valve plate 8 when opening and closing, through double sealing, improves the sealing property of the valve.

[0025] The door frame type fan valve of the utility model, its installation mode, connection mode or setting mode are all common mechanical modes, as long as the beneficial effects can be achieved, can be implemented; the motor 4 and the speed reducer 5 of the door frame type fan valve of the utility model are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual.

[0026] The above only is the preferred embodiment of the utility model, it should be pointed out that, for the ordinary technical personnel in the technical field, on the premise of not departing from the technical principle of the utility model, can make a number of improvements and variations, these improvements and variations also should be regarded as the protection scope of the utility model.

Claims

1. A door frame type fan valve, comprising a valve frame (1), both left and right ends of the valve frame (1) are fixedly connected with connecting plates (2) for connecting with external pipelines, four groups of mounting holes (3) are arranged on each group of connecting plates (2), characterized in that, Also include valve mechanism; Valve mechanism, the valve mechanism includes motor (4) and two groups of valve plates (8), motor (4) is fixedly installed at the front end of valve frame (1), the front end of valve frame (1) is fixedly installed with speed reducer (5), the output end of motor (4) is fixedly connected with the input end of speed reducer (5), the central rotating installation of valve frame (1) is equipped with transmission shaft (6), the front end of transmission shaft (6) is fixedly connected with the output end of speed reducer (5), the transmission gear (7) is fixedly sleeved in the middle of transmission shaft (6), the top and bottom of valve frame (1) are all provided with sink (9), two groups of sink (9) are about the center of transmission shaft (6) symmetry, the bottom of two groups of sink (9) is all communicated with the inside of valve frame (1) and is provided with guide port (10), two groups of valve plates (8) are slidably installed on valve frame (1) by the cooperation of guide port (10) center symmetry, the outer side of two groups of valve plates (8) is all fixedly connected with sealing cover (11), sealing cover (11) is formed integrally with valve plate (8), and sealing cover (11) is covered in sink (9), the inner wall of two groups of valve plates (8) is all fixedly connected with transmission rack (12), and two groups of transmission rack (12) center symmetry with transmission gear (7) meshing.

2. A damper door according to claim 1, wherein The top and bottom of the inside of the valve frame (1) are all provided with the plug-in groove (13) matched with the valve plate (8), two groups of plug-in groove (13) are about the center of transmission shaft (6) symmetry, and the inner side of two groups of valve plates (8) is respectively inserted in two groups of plug-in groove (13).

3. A damper according to claim 2, wherein, The outer side of two groups of the connecting plate (2) is all fixedly connected with back-shaped fastening pad (14).

4. A damper door according to claim 3, wherein, The bottom of two groups of the sink (9) is all fixedly connected with sealing rubber strip (15).

5. A damper according to claim 4, wherein, The inner side edge of two groups of the valve plate (8) is all provided with chamfer (16).

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