CN202158235U

CN202158235U - Pneumatic magnetic check ball valve

Info

Publication number: CN202158235U
Application number: CN2011203008702U
Authority: CN
Inventors: 丁德厚
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-12
Filing date: 2011-08-12
Publication date: 2012-03-07
Anticipated expiration: 2021-08-12

Abstract

The utility model relates to a pneumatic magnetic check ball valve. A thin-shell ball made of an iron sheet is arranged on a cage-shaped guide rail, and a magnetic sealing ring is arranged in a basic plate of the cage-shaped guide rail. The basic plate further has a function of an interface. When sleeved on a smoke discharging pipe opening vertically leading to the outside, the basic plate can serve as a rain roof. When inserted into an original smoke discharging hole on the wall of a kitchen, the basic plate can be connected with a smoke discharging pipe to be used. In smoke discharging, the ball is blown away from the pipe opening, and the smoke discharging pipe is unimpeded. When the smoke discharging stops, the ball rolls back to the position within the smoke discharging pipe opening and is firmly attracted by the magnetic sealing ring. Airflow flowing back into the smoke discharging pipe is dispersed by the ball surface, does not cross over the ball, but enables the ball to seal the smoke discharging pipe opening more tightly. A butterfly check valve is not required to be installed on a range hood. Therefore, the pneumatic magnetic check ball valve is particularly suitable for the kitchen sharing the smoke discharging pipe and capable of avoiding gas tainting and odor tainting.

Description

Pneumatic magnetic ball check valve

Technical field

The utility model belongs to the safety check technical field, is specifically related to prevent the safety check of kitchen chimney smoke leakage taint of odour, is particularly leading to a kind of pneumatic magnetic ball check valve that the outdoor smoke evacuation mouth of pipe is installed and used.

Background technique

Form vortex and local pressure increase during the work of electric household range hood, can cause and adjoin kitchen smoke blowing taint of odour.General blower fan air blowing opening at range hood; A butterfly " safety check " that has the interface effect concurrently is installed prevents that air-flow from pouring in down a chimney; Two valves of this butterfly " safety check " are infected with grease, and the fault that occurs the most easily is to open a slice, make the flow of suction oil smoke cut down half the! And the gas shock of pouring in down a chimney is to the valve of closing, and can make the butterfly valve concussion, causes the kitchen taint of odour, and these faults are not easy to find to be difficult to again remove, and have become chronic illness; China's house kitchen has been popularized common flue; " Code for design of dwelling houses " GB 50096-1999 (version in 2003); Specifically draft the cross-sectional area of multiple dwelling kitchen common flue already, the air displacement process careful calculation and strict budgeting for kitchen fume extractor is limited in 300-500m always ³Between/the h, yet the various brands kitchen ventilator competitively increases the input power of blower fan for the previous period, strengthens exhaust air rate and misleads the consumption, though the exhaust air rate of range hood is positioned at 13-15m gradually in the recent period ³/ min still exceeds two to three times of the air displacemenies of " Code for design of dwelling houses " regulation! Make " entering vertical ventilation flue then under the condition that many lampblack exhausters turn round simultaneously; produce the phenomenon that refluxes and leak and happen occasionally " (" Code for design of dwelling houses " 6.4.1); Cause in many ways and pay close attention to; The Ministry of Construction once released various ways such as main and auxiliary flue to the structure of common flue, in the hope of solving the smokejack taint of odour of collaborating.

Above-mentioned measure fails to stop the kitchen taint of odour through practical check for many years, and, when smoke evacuation, all want the lot of consumption energy, adopt main and auxiliary flue more will take many building areas.

The air resistance coefficient of object depends on profile, and vertical plane body air resistance coefficient is about 1.0, and the spheroid air resistance coefficient is about 0.5, so ball check valve extensively utilizes on the pipeline of transmitting fluid.

Summary of the invention

The pneumatic magnetic ball check valve of the utility model is to establish a magnetic gasket with interior leading to the outdoor smoke evacuation mouth of pipe, and at the smoke evacuation mouth of pipe cage type guide rail that the several steel wires of usefulness interweave and constitute is installed; Put an iron sheet shell ball in the cage type guide rail into and to assemble, ball when smoke evacuation by the smoke orifice that begins to rehearse that blows off, pneumatic unlatching; Stop to discharge fume and the smoke evacuation mouth of pipe of rolling back holds with interior seal ring by magnetic, magnetic sealing makes that pouring in down a chimney air-flow gets into smoke-ejecting pipe and disperseed by sphere; Can not cross ball; Only can let the tighter shutoff smoke evacuation mouth of pipe of ball, the chronic illness that butterfly shaped check valve stays has not existed, and the shared smokejack taint of odour phenomenon of collaborating can be stopped.

Domestic house kitchen leads to the big multilevel installation of outdoor smoke-ejecting pipe, and there also have the kitchen exhaust pipe in some high-end residentials or rural area vertically to lead to be outdoor, and is external then have the smoke-ejecting pipe in a lot of kitchens to erect to pass the roof.For level or smoke-ejecting pipe that erect to install, leading to the outdoor mouth of pipe at smoke-ejecting pipe, that the cage type guide rail is installed is different, as lead to outdoor smoke-ejecting pipe in level the cage type guide rail is installed; The cage type guide rail must tilt to install the smoke-ejecting pipe of installing with level and constitute the elevation angle; The elevation angle that is constituted is too big, and the iron sheet shell ball during smoke evacuation in the cage type guide rail will depart from the smoke-ejecting pipe medial axis when being blown off the smoke evacuation mouth of pipe too many, and ball is difficult in the smoke evacuation process, keep certain distance with the smoke evacuation mouth of pipe; Will increase the smoke evacuation resistance; If to constitute the elevation angle too little, iron sheet shell ball be infected with grease easily with the steel-wire track adhesion, discharge fume stop and the smoke-ejecting pipe that is difficult to roll back in.Erectting the smoke evacuation mouth of pipe of installing, the cage type guide rail only needs to keep concentricity axle with smoke-ejecting pipe, also erects and installs, as long as increase the weight of iron sheet shell ball a little, the ball that stops to discharge fume just can be by the grease adhesion, and falling is held by the seal ring of magnetic to the smoke evacuation mouth of pipe.The pneumatic magnetic ball check valve that is assembled into by cage type guide rail, iron sheet shell ball and magnetic gasket; It is characterized in that: do guide rail with several steel wires, bend to " U " font, " U " shape steel wire top is woven into birdcage shape; Become the cage type guide rail; In the cage type guide rail, put an iron sheet shell ball into, then vertically or tilt to be installed in and lead to the outdoor smoke evacuation mouth of pipe, establish a transverse section and be trapezoidal magnetic gasket with interior at the smoke evacuation mouth of pipe the cage type guide rail; Between the mouth of pipe and magnetic gasket of horizontal rows smoke pipe, also to acquire several starting guide rails.

Said at the cage type guide rail that is leading to outdoor smoke evacuation mouth of pipe installation; Cross-sectional diameter is not more than the external diameter of smoke-ejecting pipe; The length of cage type guide rail is a bit larger tham the twice of iron sheet shell ball diameter, installs with the concentricity axle of the gas exhaust duct of erectting, and installs with the smoke-ejecting pipe formation elevation angle inclination of level;

Saidly be trapezoidal magnetic gasket at the smoke evacuation mouth of pipe with the transverse section of interior setting, be arranged on the smoke evacuation mouth of pipe and be a bit larger tham the radius of iron sheet shell ball with interior distance, the height of trapezoidal transverse is a bit larger tham 1/2 of iron sheet shell ball and smoke-ejecting pipe inwall gap;

Saidly put iron sheet shell ball diameter in the cage type guide rail into, put the iron sheet shell ball in the cage type guide rail that tilts to install into, in iron sheet shell ball, acquire the solid little iron ball of a counterweight less than the smoke-ejecting pipe internal diameter;

Between the mouth of pipe and magnetic gasket of said smoke-ejecting pipe in level; Several starting guide rails of acquiring; The starting rail height is lower than the height of magnetic gasket trapezoidal transverse face slightly; Starting guide rail one end arrives at magnetic gasket, and the other end stretches out the smoke evacuation mouth of pipe and the following several guide rails of cage type guide rail integrate with.

Description of drawings

Fig. 1 is the longitudinal section organigram that the utility model tilts to install in the outlet of horizontal rows smoke pipe.

Fig. 2 is the A-A insight structural map of Fig. 1.

Fig. 3 is that the utility model is being erect the longitudinal section organigram that the smoke-ejecting pipe outlet is vertically installed.

Embodiment

Be described with reference to the accompanying drawings with two embodiments.

Embodiment 1

It is a kind of mode of execution that the utility model tilts to install in the outlet of horizontal rows smoke pipe.Fig. 1 is its longitudinal section organigram, and Fig. 2 is the A-A insight structural map of Fig. 1.

Shown in Fig. 1, Fig. 2: to the internal diameter 154mm of the pre-buried smoke vent of establishing 4 on the wall of kitchen; The external diameter of the wall-passing pipe 5 that adopts is 152mm; Dwindle 2mm than the pre-buried smoke-ejecting pipe of establishing 4 internal diameters; The installation chassis 8 double pipe joints 9 of making the corrugation rows smoke pipe of wall-passing pipe 5, the interface internal diameter 162mm of pipe joint 9 can be connected with the corrugation rows smoke pipe of general diameter 160mm; Do to lead with the stainless silk of 6 φ 1mm and hold; Bend to " U " font; " U " shape steel wire top is woven into birdcage and forms cage type guide rail 1, and the diameter of cage type guide rail 1 equals 152mm, and length is 290mm; Tilt to be installed in wall-passing pipe 5 and lead to the outdoor mouth of pipe, the wall-passing pipe of installing with level 5 constitutes the 20 degree elevations angle; With interior 70mm place a transverse section is installed at the mouth of pipe of wall-passing pipe 5 and is trapezoidal magnetic gasket 6, the height of trapezoidal transverse is 4mm; Put an iron sheet shell ball 2 in the cage type guide rail 1 into, the diameter of iron sheet shell ball 2 is 142mm, is placed on little iron ball 3 heavy 150 grams of counterweight in the iron sheet shell ball 2; Inclination is installed in three guide rail lengthenings of cage type guide rail 1 downside of wall-passing pipe 5 mouths of pipe, arrives at magnetic gasket 6, iron sheet shell ball 2 is rolled back and magnetic gasket 6 concentricity axles as starting guide rail 7; Because the sphere of iron sheet shell ball 2 only can contact with cage type guide rail 13 following guide rails; Acquired the little iron ball 3 of counterweight again; It all is to roll to get back in the smoke evacuation mouth of pipe with the little iron ball 3 of counterweight that smoke evacuation stops iron sheet shell ball 2; Very little with the frictional force of guide rail, guarantee that iron sheet shell ball 2 can be by the grease adhesion.

Present embodiment can be used as a kind of stereotyped structure of the utility model; The pneumatic magnetic ball check valve that is assembled into thus need only be with cage type guide rail 1 together with original smoke vent 4 on the wall-passing pipe 5 reeve kitchen walls, and the interface of pipe joint 9 is connected with the smoke-ejecting pipe of original range hood; Just can unload the butterfly shaped check valve in the range hood; Can release series product to the diameter of several kinds of smoke-ejecting pipes commonly used, be generalized to every family.

Embodiment 2

Be that the utility model is being erect the hard straight a kind of mode of execution installed of smoke-ejecting pipe outlet.As shown in Figure 3: cage type guide rail 1 heavily fortified point directly is installed in the outlet of the smoke-ejecting pipe 11 that passes the roof; The diameter 200mm of cage type guide rail 1 equates with the external diameter of smoke-ejecting pipe 11; The length of cage type guide rail 1 is 400mm; Installation transverse section in 90mm place is trapezoidal magnetic gasket 6 below the outlet of smoke-ejecting pipe 11, and the height of its trapezoidal transverse face is 6mm, and the diameter that is placed on the iron sheet shell ball 2 in the cage type guide rail 1 is 186mm; Because the diameter of iron sheet shell ball 2 is more a lot of than the diameter reduced of cage type guide rail 1; Sphere only contact with a guide rail on cage type guide rail 1 top during smoke evacuation, can adhesion, and the iron sheet shell ball 2 that stops to discharge fume is understood free fallings; Held the outlet complete closed that makes smoke-ejecting pipe 11 by magnetic gasket 6; Offer a water-leaking hole 10 on the tube wall on magnetic gasket 6, do not need rainhat to be installed, can stop the mouse sparrow again and scurry in the outlet of the smoke-ejecting pipe that passes the roof 11; Ball is beated on cage type guide rail 1 top during smoke evacuation, becomes new landscape one.

The present embodiment analogue formation is measured: at the PVC water pipe of the air blowing opening connection φ of centrifugal fan 200mm, the input power 180w of centrifugal fan starts blower fan mensuration exhaust air rate and reaches 19m ³/ min, when iron sheet shell ball was blown off mouth of pipe 120mm, exhaust air rate cut down 3%; The smoke evacuation mouth of pipe that blows off reaches the 180mm exhaust air rate and no longer reduces, and has verified pneumatic magnetic ball check valve to not resistance consumption of smoke evacuation, and the ball that stops to discharge fume falls and sucked by the seal ring of magnetic to the smoke evacuation mouth of pipe; Start blower fan once more; Iron sheet shell ball moment launches away, and it is sensitive to have verified that pneumatic magnetic ball check valve opens and closes, practical reliable.

Claims

1. pneumatic magnetic ball check valve comprises: establish a magnetic gasket with interior leading to the outdoor smoke evacuation mouth of pipe, and at the smoke evacuation mouth of pipe cage type guide rail that the several steel wires of usefulness interweave and constitute is installed; Put an iron sheet shell ball in the cage type guide rail into and to assemble, ball when smoke evacuation by the smoke orifice that begins to rehearse that blows off, pneumatic unlatching; Stop to discharge fume and the smoke evacuation mouth of pipe of rolling back holds with interior seal ring by magnetic, magnetic sealing is characterized in that: do guide rail with several steel wires; Bend to " U " font; " U " shape steel wire top is woven into birdcage shape, becomes the cage type guide rail, in the cage type guide rail, puts an iron sheet shell ball into; Then vertically or tilt to be installed in and lead to the outdoor smoke evacuation mouth of pipe, establish a transverse section and be trapezoidal magnetic gasket with interior at the smoke evacuation mouth of pipe the cage type guide rail; Between the mouth of pipe and magnetic gasket of horizontal rows smoke pipe, acquire several starting guide rails.

2. pneumatic magnetic ball check valve as claimed in claim 1; Be characterised in that said at the cage type guide rail that is leading to outdoor smoke evacuation mouth of pipe installation; The cross-sectional diameter of cage type guide rail is not more than the smoke-ejecting pipe external diameter; The length of cage type guide rail is not less than the twice of iron sheet shell ball diameter, installs with the concentricity axle of the gas exhaust duct of erectting, and installs with the smoke-ejecting pipe formation elevation angle inclination of level.

3. pneumatic magnetic ball check valve as claimed in claim 1; Be characterised in that and saidly be trapezoidal magnetic gasket leading to the transverse section of the outdoor smoke evacuation mouth of pipe with interior setting; Be arranged on the smoke evacuation mouth of pipe and be a bit larger tham the radius of iron sheet shell ball with interior distance, the height of trapezoidal transverse is a bit larger tham 1/2 of iron sheet shell ball and smoke-ejecting pipe inwall gap.

4. pneumatic magnetic ball check valve as claimed in claim 1; Be characterised in that and saidly put iron sheet shell ball diameter in the cage type guide rail into less than the smoke-ejecting pipe internal diameter; Put the iron sheet shell ball in the cage type guide rail that tilts to install into, also will in iron sheet shell ball, acquire the solid little iron ball of a counterweight.

5. pneumatic magnetic ball check valve as claimed in claim 1; Be characterised in that said between the mouth of pipe and magnetic gasket of horizontal rows smoke pipe; Several starting guide rails of acquiring; The starting rail height is lower than the height of magnetic gasket trapezoidal transverse face slightly, and starting guide rail one end arrives at magnetic gasket, and the other end stretches out the smoke evacuation mouth of pipe and the following several guide rails of cage type guide rail integrate with.