CN207455873U - Proportion expression non-return air door - Google Patents

Abstract

The utility model discloses a kind of proportion expression non-return air doors,Including an air-door opening-closing device,One air door,Two interlinked mechanisms and a counter weight device,Air-door opening-closing device includes an at least power source and a transmission shaft,Power source is generating power so that transmission shaft to be driven to rotate,Air door includes a top frame,One bottom frame,Two are connected to frame and plural blade group between top frame end position opposite with bottom frame,Blade group is articulated between two frames of air door,And one of blade group and transmission shaft linkage,To be driven through transmission shaft reciprocal pivot is carried out with the blade group of transmission shaft linkage,Interlinked mechanism is connected on two opposite ends of blade group,Pivot is synchronized to interlock blade group,And counter weight device has a Weight plate and an at least clump weight,One end of Weight plate is connected on one end of blade group,The other end of Weight plate then has an at least elongated slot,Clump weight is connected in elongated slot,And displacement can be carried out along elongated slot,With the weight for adjusting blade group opening angle with adjusting counterweight.

Description

Proportion expression non-return air door

Technical field

The utility model is related to a kind of air door structure, espespecially a kind of adjustable opening angle is with matching somebody with somebody the ratio between recanalization example formula check Air door.

Background technology

Non-return air door refers to be installed in a pipeline, for the air quantity in pipeline by the way that and while closing then makes when opening Air quantity in pipeline can not by air-conditioning equipment, applicable scope is quite extensive, for example, the fire and smoke exhaust of building air-conditioning or Take precautions against peculiar smell in living at home to drift (kitchen or lavatory) ... etc..

The non-return air door structure of general market mainly includes an air door structure and one controlling door opening and close Motor is connected between the blade of air door and actuator through the power of motor offer, then via sliding component, interlocking lever, to interlock The blade of air door is pivoted.

However, above-mentioned construction, it is necessary to which the power provided by motor opens the work of air door and closing air door to reach With when motor failure, then air door can not be successfully and be turned on and off.

Therefore, TaiWan, China M476826 new patents are that " adjustable opening angle is with matching somebody with somebody the inverse of recanalization for offer one kind Only air door " is mainly pivoted through the next band movable vane piece of weight of counter weight device, to reach the mesh for being turned on and off air door , however, such structure in the blade opening angle of air door to be adjusted, is both needed to the adjustment part progress to an angle adjusting Adjustment, it is therefore, each counter weight device band movable vane piece to be made to be pivoted according to the blade opening angle of angular adjustment apparatus setting During the opening angle of secondary change blade, be both needed to the adjustment part of whole angle adjusting, cause in actual job, it is comparable not It is convenient.

Utility model content

It in order to solve the above technical problems, can in a manual manner or electronic mode the purpose of this utility model is to provide one kind It is turned on and off the proportion expression non-return air door of air door.

In order to solve the above technical problems, the another object of the utility model is to provide a kind of adjustable opening angle and counterweight The proportion expression non-return air door of adjustment.

In order to solve the above technical problems, the further object of the utility model is that providing one kind can adjust in response to different demands The proportion expression non-return air door of whole opening angle.

To reach above-mentioned purpose, the utility model uses following technical scheme：

A kind of proportion expression non-return air door includes at least an air door, two interlinked mechanisms, at least a counter weight device and an air door open Device is closed, air door is connected to frame and plural leaf between top frame end position opposite with bottom frame including a top frame, a bottom frame, two Piece group, blade group are articulated between two frames of air door, to be pivoted in an open position to work between a detent position is reciprocal.

Wherein, it is respectively provided on each frame of air door several from top to bottom and according to the pivot hole of equidistant spread configuration, blade Group respectively has a hinged arm and a blade, and the opposite end of hinged arm is respectively penetrated in the pivot hole for being located at opposite position on frame It is interior, and blade is then connected on hinged arm, to be interlocked by hinged arm, and interlinked mechanism is respectively provided with several linking arms and at least one Connecting rod, one end of each linking arm are connected on each blade group one end, and connecting rod is then connected to the other end both sides for waiting linking arms On.

The apical margin one side of above-mentioned blade has protruded out an overlap joint protrusion through bending, and the root edge opposite side of blade then passes through Bending and be recessed have an overlap joint groove；When blade is located at detent position, the overlap joint protrusion of blade is overlapped in position position on the top In the overlap joint groove of blade.

Counter weight device has an adjustment plate and several lock-connecting pieces, and adjustment plate is locked on one end of one blade group, and In adjustment plate and with several lockholes that setting is surrounded along a circular trace, Weight plate has several along one adjacent to an end position The arc groove that circular trace surrounds is connected with being subject to drawing-in for each lock-connecting piece with the lockhole of adjustment plate by each arc groove.

Air-door opening-closing device includes an at least power source and a transmission shaft, and power source is generating power to drive transmission shaft It rotates, wherein power source includes one of an electric and pneumatic switch and a manual switch or both, electric and pneumatic switch For motor-operated control valve, electro-motor, oil hydraulic cylinder or pneumatic cylinder, manual switch is manually-operated gate.

Description of the drawings

Fig. 1 is the stereo appearance figure of the utility model；

Fig. 2 is most of solution figure of the utility model proportion expression non-return air door；

Fig. 3 is the three-dimensional exploded view of the utility model air-door opening-closing device；

Fig. 4 is the three-dimensional exploded view of the utility model counter weight device；

Fig. 5 is the decomposition diagram of the utility model air door and linkage；

Fig. 6 is the front view of the utility model air door；

Fig. 7 is the sectional view of A-A ' hatching lines in the utility model Fig. 6；

Fig. 8 is the schematic diagram of another embodiment of the utility model proportion expression non-return air door；And

Fig. 9 is the schematic diagram of the another embodiment of the utility model proportion expression non-return air door.

【Symbol description】

1 air-door opening-closing device, 11 power source, 111 manual rotation valve

112 motor-operated control valve, 12 transmission shaft, 2 air door

21 top frame, 22 bottom frame, 23 frame

231 pivot hole, 24 blade group, 241 hinged arm

242 blades 2421 overlap joint protrusion 2422 overlaps groove

3 interlinked mechanism, 31 linking arm, 32 connecting rod

4 counter weight device, 41 adjustment plate, 42 Weight plate

43 lock-connecting piece, 44 clump weight, 45 lockhole

46 arc groove, 47 elongated slot

Specific embodiment

Specific embodiment explained below to illustrate the embodiment aspect of the utility model, precisely because not limiting this reality With the new scope to be protected：

Please refer to Fig.1~7, the utility model proportion expression non-return air door mainly include an air-door opening-closing device 1, an air door 2, Two interlinked mechanisms 3 and at least a counter weight device 4, wherein：

Air-door opening-closing device 1 includes an at least power source 11 and a transmission shaft 12, and it is electric and pneumatic that power source 11 includes one Switch and a manual switch start switch for manual rotation valve 111, and electric and pneumatic switch is motor-operated control valve 112, manually Changeover valve 111 and motor-operated control valve 112 are connected with one end of transmission shaft 12.

Air door 2 includes a top frame 21, a bottom frame 22, two frames 23 and plural blade group 24, and top frame 21 and bottom frame 22 are distinguished Respectively have between the top of frame 23 and bottom, on the opposite face of frame 23 several from top to bottom according to equidistant arrangement The pivot hole 231 of setting, and the front and rear edges of air door 2 are connected in a pipeline (not shown).

Blade group 24 includes a hinged arm 241 and a blade 242, and hinged arm 241 respectively penetrates opposite in being located on frame 23 It answers in the pivot hole 231 of position, and blade 242 is then connected on hinged arm 241, and the apical margin one side of blade 242 is protruded out through bending There is an overlap joint protrusion 2421, and the root edge opposite side of blade 242 is then recessed through bending an overlap joint groove 2422, and blade group The hinged arm 241 of a 24 wherein blade groups 24 is connected with transmission shaft 12.

Interlinked mechanism 3 is connected on 24 one end of blade group, to interlock the pivot that blade group 24 synchronizes, and Interlinked mechanism 3 is respectively provided with several 31 and two connecting rods 32 of linking arm, and one end of each linking arm 31 is connected to each blade group 24 241 one end of hinged arm on, two connecting rods 32 be then connected to wait linking arms 31 other end both sides on.

Counter weight device 4 is connected on each interlinked mechanism 3, and blade group 24 is opened to adjust to provide appropriate weight The wind-force person of Shi Suoxu；Counter weight device 4 has an adjustment plate 41, a Weight plate 42, several lock-connecting pieces 43 and several counterweights Block 44, adjustment plate 41 are locked on 241 one end of axostylus axostyle of one blade group 24, and in adjustment plate 41 and with several circular along one Track surrounds the lockhole 45 set, and Weight plate 41 has several arc grooves surrounded along a circular trace adjacent to an end position 46, it is connected with being subject to drawing-in for each lock-connecting piece 43 with the lockhole 45 of adjustment plate 41 by each arc groove 46, makes Weight plate 42 via lock Fitting 43 and interlocked with the axostylus axostyle 241 of blade group 24, Weight plate 42 adjacent to another end position then have two parallel elongated slots 47, match somebody with somebody Pouring weight 44 is arranged on by bolt lock in elongated slot 47, and is connected on the other end of Weight plate 42.

The utility model proportion expression non-return air door through motor-operated control valve 112 in use, drive what is be connected with transmission shaft 12 Blade group 24 is pivoted between an open position and a closed position, and is passed through linkage 3 and driven other blade groups 24 same Step pivots, to achieve the purpose that be turned on and off air door 2, and when motor-operated control valve 112 when failure or power failure ... are when factors nothing When method starts, power source 11 can be also switched to manual rotation valve 111 by the utility model proportion expression non-return air door, to utilize hand Flowing mode is turned on and off air door 2.

Alternatively, manual rotation valve 111 and motor-operated control valve 112 also can be cut off in the utility model proportion expression non-return air door, Blade group 24 is made as the wind-force in pipeline is blown and is opened naturally, and when the wind in blade group 24 not in by pipeline is attacked, profit It can be pivoted with the weight of counter weight device 4 with movable vane piece group 24 toward detent position, make the overlap joint protrusion on the top of blade 242 2421 are overlapped in the overlap joint groove 2422 of top blade 242, with promote airtight effect and prevent blade 242 there may be it Deformation.

And when the weight of counter weight device 4 to be adjusted, in addition to being reached except the clump weight 44 of replaceable different weight, more Locked again after can clump weight 44 being slid onto appropriate location along elongated slot 47, just can use adjustment clump weight 44 to Weight plate 42 Arm of force distance between locking point, and then the torque produced by clump weight 44 is adjusted out, and then change and blade group 24 is allowed to be pivoted Required wind-force during unlatching, in addition, also lock-connecting piece 43 can be made in arc groove by the way that Weight plate 42 is rotated a predetermined angular Into line slip in 46, to become the angle for dissolving Weight plate 44 and hanging, more can blade be thereby applied to subtleer adjustment Weight in group.

In addition, referring to Fig. 8~9, the power source of the air-door opening-closing device 1 of the utility model proportion expression non-return air door also may be used It is individually for manual rotation valve 111 or is individually for motor-operated control valve 112, to penetrate motor-operated control valve 112 or manual rotation valve The blade group 24 of 111 drives and 12 connection of transmission shaft is pivoted between an open position and a closed position, and passes through gearing Device 3 drives other 24 pivot in unison of blade group, to reach the purpose for being turned on and off air door 2.

And the utility model proportion expression non-return air door penetrates motor-operated control valve 112 to regulate and control the wind pressure in exhaust system, makes System reaches balance, and online board is avoided to cause to work as machine due to wind pressure is unstable.

The above is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, any one skilled in the art in technical scope, can readily occur in variation disclosed in the utility model Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power Subject to the protection domain of profit requirement.

Claims (7)

1. a kind of proportion expression non-return air door, mainly includes：

One air-door opening-closing device, the air-door opening-closing device include an at least power source and a transmission shaft, and power source is dynamic to generate Power is to drive transmission shaft to rotate；

One air door, the air door have a top frame, a bottom frame, two be connected to frame between top frame end position opposite with bottom frame and Plural blade group, between blade group is according to equally spacedly frame is articulated in, and one of blade group and transmission shaft linkage, with through biography Moving axis drives and the blade group of transmission shaft linkage is in an open position to the reciprocal pivot of progress between a detent position；

Two interlinked mechanisms, interlinked mechanism are connected to the both ends of blade group, and pivot is synchronized to interlock blade group；

There is a Weight plate and an at least clump weight, one end of Weight plate to be connected to blade for an at least counter weight device, counter weight device On one end of group, the other end of Weight plate then has an at least elongated slot, and clump weight, which is connected to, to be waited in elongated slots, and can be carried out along elongated slot Displacement.

2. be respectively provided on each frame of proportion expression non-return air door as described in claim 1, wherein doorframe it is several from top to bottom And according to the pivot hole of equidistant spread configuration, blade group respectively has a hinged arm and a blade, and the opposite end of hinged arm respectively penetrates In being located on frame in the pivot hole of opposite position, and blade is then connected on hinged arm, to be interlocked by hinged arm, interlinked mechanism company It is connected on the opposite end of hinged arm.

3. the apical margin one side of proportion expression non-return air door as claimed in claim 2, wherein blade has protruded out one through bending and has taken Protrusion is connect, and the root edge opposite side of blade is then recessed through bending an overlap joint groove, when blade is located at detent position, blade Overlap joint protrusion be overlapped in position on the top in the overlap joint groove of position blade.

4. proportion expression non-return air door as described in claim 1, wherein each interlinked mechanism is respectively provided with several linking arm and extremely A few connecting rod, one end of each linking arm are connected on each blade group one end, and connecting rod is then connected to the other end for waiting linking arms On both sides.

5. proportion expression non-return air door as described in claim 1, wherein counter weight device have an adjustment plate and several lock-connecting pieces, Adjustment plate is locked on one end of one blade group, and in adjustment plate and with several locks that setting is surrounded along a circular trace Hole, Weight plate has several arc grooves surrounded along a circular trace adjacent to an end position, with by each arc groove and adjustment plate Lockhole for each lock-connecting piece be subject to drawing-in connection.

6. proportion expression non-return air door as described in claim 1, wherein power source include an electric and pneumatic switch and one manually One of switch or both.

7. proportion expression non-return air door as claimed in claim 6, wherein electric and pneumatic switch is motor-operated control valve, electronic horse It reaches, oil hydraulic cylinder or pneumatic cylinder, manual switch are manual rotation valve.