CN2622498Y

CN2622498Y - Automatic exhausting valve

Info

Publication number: CN2622498Y
Application number: CN 03231235
Authority: CN
Inventors: 徐国峰; 高明松; 蒲昌烈
Original assignee: GUILONG VALVE CO Ltd SHANGHAI
Current assignee: GUILONG VALVE CO Ltd SHANGHAI
Priority date: 2003-05-16
Filing date: 2003-05-16
Publication date: 2004-06-30
Anticipated expiration: 2013-05-16

Abstract

The utility model discloses an automatic exhausting valve including a valve body, a valve seat, and a floating ball. The lower end of the valve body is a cut and the upper end of the valve body is a hollow cylinder. The inner wall in one side of the valve body is a slope wall which is provided with a guiding incline slot. A transfixion venthole is arranged between the slope wall and the valve body wall. A rib is arranged between the slope wall and the inner top wall of the valve body. The middle of the rib is provided with a strip vent, which is communicated with the transfixion venthole. The floating ball is an eccentric hollow column one side of which is a rectangular block and one side top that the floating ball squeezing the valve body rib is an inclined plane, which is provided with an airflow adjusting slot and a gland strip moving over slot. The base is a supporting base which is sealed and connected with the lower port of the valve body and the lower end of the base is provided with a cut. The utility model has the advantages of simple structure, small size, big air exit hole, flexible air exit, self clean, discontinuous on-off, easy maintenance, and long service life, etc.

Description

Automatic control pressure vent

Technical field

The utility model relates to valve, more specifically refers to a kind of automatic control pressure vent that is used for conduit pipeline.

Background technique

In the water system, when pipeline drift diameter hour, pump discharge or pipeline higher position installing outlet valve 10 (see figure 1)s of being everlasting, the air in the discharge conduit 30 is avoided in the pipeline air to build up forming air being interrupted part, send water efficient thereby improve.Air outside the pipeline is in relief opening enters pipeline when producing negative pressure in the pipeline simultaneously, and the pressure that equalizing main is inside and outside plays the protection pipe-line system.

Automatic control pressure vent in the market adopts lever swing-arm type mechanism mostly, see also shown in Figure 2, this outlet valve 10 mainly comprises valve body 11, ball float 12, valve gap 13, ball float 12 is positioned at valve body 11, valve gap 13 is covered in the valve body 11, valve import 14 is positioned at the lower end of valve body 11, valve outlet port 15 is positioned on the valve gap 13, relief opening 16 is installed in the lower end of valve outlet port 14, ball float 12 joins with an end of lever 17, the other end of lever 17 is fixed on the pin 19 that is installed on the supporting frame 18, and sealing plug 171 is housed on the lever 17.After the water level in the valve body 11 rose to certain altitude, ball float 12 rose and drives levers 171 and be positioned at sealing plug 19 on the lever, and was that fulcrum rotates in the counterclockwise direction with pin 19, and 171 of sealing plugs are sealed relief opening 16; When air in the pipe-line system in valve import 14 enters valve body 11, along with increasing of air built up on top, ball float 12 moves down, driving lever 17 and sealing plug 171 is that fulcrum is rotated in a clockwise direction with pin 19, sealing plug 171 is thrown off with relief opening 16, opens relief opening 16, the outlet valve exhaust.There is following shortcoming in this outlet valve: 1, complex structure, and fragile; 2, no self-cleaning function, foreign material easily stop up relief opening, and easy cleaning not; 3, exhaust port is less.

At the above-mentioned shortcoming that traditional outlet valve exists, the purpose of this utility model provides a kind of automatic control pressure vent.

To achieve these goals, the utility model adopts following technological scheme: this automatic control pressure vent comprises valve body, base, ball float,

Valve body is the hollow cylinder that a lower end is opening, upper end sealing, valve body one side inwall is a sloped wall, sloped wall offers the guiding skewed slot, and offer between sloped wall and the valve body wall and run through vent, be provided with fin between sloped wall and the valve body inner roof wall, offer the bar shaped relief opening in the middle of the fin, the bar shaped relief opening with run through vent and communicate;

Ball float is one to be placed in body cavity and to be provided with the eccentric open column shape body of air flue, open column shape body one side is a rectangular block, the side top that ball float and valve body fin offset is the inclined-plane, gas flow modulation groove and Stamping Steel Ribbon slot to make way are offered in the inclined-plane, gas flow modulation groove along continuous straight runs is offered, and the air flue in gas flow modulation groove and the ball float communicates, and the Stamping Steel Ribbon slot to make way is offered along bevel direction, on the Stamping Steel Ribbon slot to make way Stamping Steel Ribbon is set, the running shaft that matches with valve body guiding skewed slot is set on the rectangular block; Base is a supporting base that joins with valve body lower end mouth sealing, and through hole is offered in the base lower end.

The utility model adopts technique scheme, utilize ball float to have the structure of eccentric open column shape body and the design that Stamping Steel Ribbon is set on the Stamping Steel Ribbon slot to make way, when Stamping Steel Ribbon moves on along with water level the bar shaped relief opening on the fin arc surface is sealed, and the gas increase is when making drawdown, Stamping Steel Ribbon separates with relief opening again to have formed relief opening is carried out washboard formula automatically cleaning, obviously, outlet valve of the present utility model has simple in structure, volume is little, and vent ports is big, and exhaust is flexible, automatically cleaning, gradually open gradually and close, keep conveniently the advantage of long service life.

Description of drawings

Fig. 1 is used in the principle schematic of water system for outlet valve.

Fig. 2 is traditional exhaust structure schematic representation.

Fig. 3 is the utility model exhaust structure schematic representation.

Fig. 4 is the utility model outlet valve valve body structure schematic representation.

Fig. 5 be Fig. 4's " Z-Z " to local enlarged diagram.

Fig. 6 is that the A of Fig. 4 is to partial schematic diagram.

Fig. 7 is the utility model outlet valve ball float structural representation.

Fig. 8 is the utility model outlet valve ball float schematic top plan view.

Fig. 9, Figure 10 are respectively the utility model outlet valve structural representation when being in different conditions.

Figure 11, Figure 12 are respectively the utility model outlet valve relief opening sealing principle schematic representation.

Embodiment

See also shown in Figure 3ly, automatic control pressure vent 20 of the present utility model comprises valve body 21, ball float 22, base 23.

Please cooperate Fig. 4-shown in Figure 6 again, it is opening that valve body 21 is a lower end, the hollow cylinder of upper end sealing, valve body 21 1 side inwalls are sloped wall 211, sloped wall 211 offers guiding skewed slot 2111, and offer between sloped wall 211 and the valve body wall and run through vent 212, be provided with fin 213 between sloped wall 211 and the valve body inner roof wall, running through vent 212 also can be opened between fin 213 and the valve body wall, in this embodiment, running through vent 212 has illustrated to be opened between fin 213 and the valve body wall, offer bar shaped relief openings 214 in the middle of the fin 213, bar shaped relief opening 214 with run through vent 212 and communicate.

Please continue to cooperate Fig. 7, shown in Figure 8, ball float 22 is one to be placed in valve body 21 inner chambers and to be provided with the eccentric open column shape body of air flue, open column shape body one side is a rectangular block 221, ball float 22 is the inclined-plane with the side top 222 that valve body fin 213 offsets, gas flow modulation groove 223 and Stamping Steel Ribbon slot to make way 224 are offered in side top 222, gas flow modulation groove 223 along continuous straight runs are offered, gas flow modulation groove 223 communicates with the air flue 225 of formation in the ball float, air flue 225 is the big little cone shape hole of, the upper shed 226 of cone shape hole is arranged in Stamping Steel Ribbon slot to make way 224, and the under shed of cone shape hole is relative with the through hole 231 of base 23.Stamping Steel Ribbon slot to make way 224 is offered along the bevel direction on side top 222, Stamping Steel Ribbon slot to make way 224 intersects with gas flow modulation groove 223, Stamping Steel Ribbon 227 is set on the Stamping Steel Ribbon slot to make way 224, fixedly install the running shaft 228 that matches with valve body guiding skewed slot 2111 on the rectangular block 221, the water of ball float 22 in valve body makes progress and upwards slides and rotation at guiding skewed slot 2111 by running shaft 228 under the buoyancy function.It is worthy of note, in the ball float 22, be the down big fine taper hole air flue 225 of going up and be certain lateral deviation, make the centers of gravity of ball float 22 itself be offset to the left like this to (shown in Fig. 7 deflection) to the right.

The face of described fin 213 is an arc surface, and fin 213 and substantially horizontal (promptly with valve body 21 on top end) are an angle.

Automatic control pressure vent working procedure of the present utility model is described below:

When water level in the pipe-line system rises to automatic control pressure vent inside, please continue in conjunction with Fig. 9, shown in Figure 10, ball float 22 moves upward at buoyancy function lower edge valve body 21 guiding skewed slots 2111, because the center of gravity of ball float 22 has skew, bar shaped relief opening 214 in the sealing surface of rubber weather strip 227 and the valve body on fin 213 arc surfaces has angle, along with water level continues to rise, rubber weather strip 227 lower ends contact with fin 213 arc surfaces of valve body at first, ball float 22 when rising around its running shaft 228 (this moment, valve body guiding skewed slot 2111 became pivot point with the point of contact of running shaft 228).Rubber weather strip 227 diminishes gradually with the angle of the arc surface of fin 213, rubber weather strip 227 from bottom to top touch fin 213 arc surfaces gradually and closes gradually and seal bar shaped relief opening 214, gradually pass function when making it to form hermetically closing, whole then outlet valve 20 is in the complete shut-down state.Simultaneously because fin 213 arc surfaces of rubber weather strip 227 and valve body have certain relatively moving, can remove on fin 213 arc surfaces of valve body and the residual foreign material in relief opening 214 places, this be called washboard formula self-cleaning function.Along with increasing of valve body 21 internal upper part air, the water surface in the valve body 21 descends, and reach a certain height, and ball float 22 has whereabouts trend.Because the skew of ball float center of gravity, at first the fulcrum that contacts of ball float 22 running shaft 228 on its valve body guiding skewed slot 2111 and ball float rotates, throw off with the fin 213 arc surface tops of valve body earlier on Stamping Steel Ribbon 227 tops, tear osculum one, enlarge gradually until all opening relief opening 214, therefore discharge the air in the valve body 21, this for gradually opening function.

Along with the further increase of air mass flow, the water surface descends, and ball float 22 falls after rise downwards along valve body guiding skewed slot 2111.Until contact base 23, outlet valve 20 is in full-gear.

The water surface rises once more in valve body 21, and ball float 22 rises thereupon, then carries out a work cycle again.

Under request in person successively in conjunction with shown in Figure 11, Figure 12 (intermittent line is represented air-flow among this figure), again relief opening 214 sealing principles are further detailed, when rubber weather strip 227 with after fin 213 arc surfaces contact, increase along with ball float 22 buoyancy, 227 of rubber weather strips produce resiliently deformable, produce elastic force f, touch fin 213 arc surfaces, act on this moment and also have fluid pressure P below the rubber weather strip 227, make rubber weather strip 227 further resiliently deformables, seal bar shaped relief opening 214 fully, reach the ideal effect of double seal.Through practical proof, select the rubber weather strip of excellent spring, even fluid pressure is low to moderate 0.2kgf/cm ²(liquid is full of the demarcation pressure minimum of pipeline) still has excellent sealing ability.Because bar shaped relief opening 214 is the design of convergent-divergent aperture, can very rapid exhausting air.When the space of air-flow high speed flow between rubber weather strip 227 and bar shaped relief opening 214, can produce an adsorption force F1 who makes progress to plane on the rubber weather strip 227, F1 makes the close trend of the oriented relief opening of rubber weather strip 227 214, cause rubber weather strip 227 can not be fully and relief opening 214 break away from, thereby can not open relief opening 214 fully, exhaust efficiency descends.And this model utility has solved this problem effectively.Being most of air-flow in the middle of ball float 22, air flues produce adsorption force F2 through rubber weather strip 227 lower planes, and the trend that rubber weather strip 227 is had transport out of bar shaped relief opening 214 is until opening relief opening 214 fully.

Claims

1, a kind of automatic control pressure vent is characterized in that: this outlet valve comprises valve body, base, ball float,

Valve body is the hollow cylinder that a lower end is opening, upper end sealing, valve body one side inwall is a sloped wall, sloped wall offers the guiding skewed slot, offer on the valve body wall and run through vent, be provided with fin between sloped wall and the valve body inner roof wall, offer the bar shaped relief opening in the middle of the fin, the bar shaped relief opening with run through vent and communicate;

Ball float is one to be placed in body cavity and to be provided with the eccentric open column shape body of air flue, open column shape body one side is a rectangular block, the side top that ball float and valve body fin offset is the inclined-plane, gas flow modulation groove and Stamping Steel Ribbon slot to make way are offered in the inclined-plane, gas flow modulation groove along continuous straight runs is offered, and the air flue in gas flow modulation groove and the ball float communicates, and the Stamping Steel Ribbon slot to make way is offered along bevel direction, on the Stamping Steel Ribbon slot to make way Stamping Steel Ribbon is set, the running shaft that matches with valve body guiding skewed slot is set on the rectangular block;

Base is a supporting base that joins with valve body lower end mouth sealing, and through hole is offered in the base lower end.

2, automatic control pressure vent as claimed in claim 1 is characterized in that: the air flue in the described ball float is the big little cone shape hole of, and the upper shed of cone shape hole is arranged in the Stamping Steel Ribbon slot to make way, and the under shed of cone shape hole is relative with the through hole of base.

3, automatic control pressure vent as claimed in claim 1 is characterized in that: described fin face is an arc surface, and fin and substantially horizontal are an angle.

4, automatic control pressure vent as claimed in claim 1 is characterized in that: the described vent that runs through is opened between fin and the valve body wall.

5, automatic control pressure vent as claimed in claim 1 is characterized in that: the described vent that runs through is opened between sloped wall and the valve body wall.