CN2931970Y

CN2931970Y - Water stop mechanism of inlet valve

Info

Publication number: CN2931970Y
Application number: CN 200620061498
Authority: CN
Inventors: 刘永茂
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-07
Filing date: 2006-07-07
Publication date: 2007-08-08
Anticipated expiration: 2016-07-07

Abstract

The utility model discloses a water seal device of feed valve, which is mounted between the upper cover and the inlet tube and comprises a water seal plug, a water seal pad, an inner plug tube, wherein the inner plug tube is fixed on the upper end of the feed, surface of the inner plug tube is provided with an outward convex table, the outward convex table is provided with a side water inlet hole and a center water outlet hole, the outward convex table is provided with a water outlet hole connected with the center water outlet hole bellow, water in the water inlet pipe flows out through the side water inlet hole, the center water outlet hole and the bottom water outlet hole. The water seal pad and the cover form a tube and the water seal pad forms a through hole to the corresponding center water outlet hole and a side hole. The water seal pad is fixed in the through hole and side edge is provided with a side rod in the side hole. The side rod forms a directing groove which connects the inner plug pipe and the tube. The utility model can ensure the water seal effect and the water inlet speed.

Description

The sealing mechanism of inlet valve

Technical field

The utility model relates to the technical field of tank intake valve of water, and mechanism is relevant with sealing.

Background technique

In the prior art, the structure of tank intake valve of water as shown in Figure 1, its sealing function is by being assembled in sealing rubber cushion 1 in the loam cake 3 and needle-valve 2 is realized.Sealing rubber cushion 1 is positioned on the water intake 5 of intake pipe 4.

In the use, after cistern water level descends, keg float 6 descends thereupon, drives lever 7 and clockwise rotates, and the aperture on the loam cake 3 is opened, hydraulic pressure between venting loam cake 3 and the sealing rubber cushion 1 among the cavity volume A, sealing rubber cushion 1 is upwards pushed up by the hydraulic pressure in the intake pipe 4, and the water intake 5 of intake pipe 4 is opened, and water flows to water inlet bodies 8 through water intake 5, water outlet through water inlet body 8 flows to water tank again, realizes water tank water intake; After cistern water level rises, keg float rises thereupon, driving lever 7 rotates counterclockwise, aperture on the loam cake 3 is blocked, enter through needle-valve 2 that the water among the cavity volume A discharges nowhere between loam cake 3 and the sealing rubber cushion 1, make between loam cake 3 and the sealing rubber cushion 1 that hydraulic pressure raises in the cavity volume A, sealing rubber cushion 1 by hydraulic pressure in the cavity volume A to pressing down, seal the water intake 5 of intake pipe 4, stop to water tank water intake.

Anatomize above-mentioned sealing mechanism, be not difficult to find: because during water inlet, sealing rubber cushion 1 be fully by hydraulic action in the intake pipe 4 wherein on the mind-set top open water intake 5, so, when hydraulic pressure was on the low side in the intake pipe 4, water intake 5 was opened not obvious, and water tank water intake speed is slow; Again because the water in the intake pipe 4 is directly to enter between loam cake 3 and the sealing rubber cushion 1 among the cavity volume A through needle-valve 2, and needle-valve 2 is little with the matching gap of sealing rubber cushion 1 pin hole, and the drainage trough on the needle-valve 2 is also tiny, so, current (particularly high-pressure water flow) are when directly rushing at needle-valve 2, very easily with dirt band in the water in cavity volume A, cause dirt to stop up this gap and drainage trough, make the sealing failure mechanisms, influence the use of inlet valve.In a word, there is a little deficiency in existing sealing mechanism, haves much room for improvement really.

The model utility content

The purpose of this utility model is to provide a kind of sealing mechanism of inlet valve, to guarantee sealing effect and water tank water intake speed.

To achieve these goals, solution of the present utility model is:

The sealing mechanism of inlet valve is assembled between loam cake and the intake pipe, mainly is made up of sealing core, waterstop pad and inner core tube; Inner core tube fixedly is connected on the upper end of intake pipe, form outer lug boss on the tube wall of inner core tube, have side water inlet and center osculum on the outer lug boss, have the following osculum that is communicated with the center osculum under the outer lug boss, the water in the intake pipe through the side water inlet, center osculum and following osculum flow out; Waterstop pad is fixed on and covers, cavity volume between waterstop pad and the loam cake, and the center osculum of the corresponding inner core tube of waterstop pad forms through hole, and side also forms a side opening; The sealing core is fixed in this through hole, and the side of sealing core has a side lever and then is inserted in the side opening, forms drainage trough on the side lever, and drainage trough is communicated with the side water inlet and the cavity volume of inner core tube.

Fix a location piece on the outer lug boss of above-mentioned inner core tube, the side water inlet and the center osculum of the corresponding inner core tube of location piece are offered periphery hole and center hole, and center hole is stuck on the center osculum of inner core tube, the water in the intake pipe through the side water inlet, periphery hole, center osculum and following osculum flow out.

Be provided with flat cushion rubber between above-mentioned location piece and the outer lug boss.

Above-mentioned location piece and outer lug boss are by ultrasonic welding or bond together.

The side opening of above-mentioned waterstop pad is in the side water inlet of radially departing from inner core tube.

Also arching upward on the above-mentioned waterstop pad forms a ring resilience groove, and the sealing core is in this elastic groove.

After adopting said structure, the utility model increases an inner core tube that changes water inlet and water outlet route in the upper end of intake pipe, open the center osculum of inner core tube by sealing core and waterstop pad and realize water inlet, and realize sealing by the center osculum that sealing core and waterstop pad are blocked inner core tube.Like this, the utility model compared with prior art, water intake is opened all the time, sealing core and waterstop pad are by hydraulic action in the intake pipe its periphery upwards to be lifted, and cooperating the variation in water pressure of cavity volume between waterstop pad and the loam cake to open or block water outlet, it is little that the unlatching of water outlet is just influenced by hydraulic pressure in the intake pipe, so, no matter intake pipe hydraulic pressure height can both normally open water intake and water outlet, guarantee water tank water intake speed when water inlet; And, water in the intake pipe commutates through the side water inlet earlier, enter between loam cake and the waterstop pad in the cavity volume through the matching gap of side lever and side opening and drainage trough again, current are eased because of commutation pressure, after hydraulic pressure reduces, even high-pressure water flow can be more yet with dirt band in the water in cavity volume, avoid dirt to stop up this gap and drainage trough, guarantee sealing mechanism effect, guarantee the normal use of inlet valve.

Description of drawings

Fig. 1 is the assembled sectional view of existing inlet valve;

Fig. 2 is the schematic appearance that the utility model applies to inlet valve;

Fig. 3 is a three-dimensional exploded view of the present utility model;

Fig. 4 is an assembled sectional view of the present utility model;

Fig. 4-the 1st, the partial enlarged drawing of Fig. 4;

Fig. 5 is the enlarged view of the utility model sealing core;

Fig. 6 is the enlarged view of the utility model waterstop pad;

Fig. 7 is the enlarged view of the utility model location piece.

Embodiment

As shown in Figure 3, the utility model has disclosed a kind of sealing mechanism of inlet valve, this sealing mechanism, be assembled between loam cake 22 and the intake pipe 15, intake pipe 15 is enclosed within the water body 11, the key of loam cake 22 and non-this case of structure of intake pipe 15, can be same as the prior art, so do not describe in detail.

Sealing of the present utility model mechanism mainly is made up of sealing core 20, waterstop pad 19 and inner core tube 16, cooperates shown in Fig. 4 and Fig. 4-1.

Inner core tube 16 is fixedly connected on the upper end of intake pipe 15.Form outer lug boss 161 on the tube wall of inner core tube 16.Have side water inlet 162 and center osculum 163 on the outer lug boss 161, have the following osculum 164 that is communicated with center osculum 163 under the outer lug boss 161.Water in the intake pipe 15 be through side water inlet 162, center osculum 163 and following osculum 164 flow out, flow in the water tank through water inlet body 11 again.

Waterstop pad 19 is fixed on the loam cake 22.Form cavity volume A between waterstop pad 19 and the loam cake 22.Cooperate shown in Figure 6ly, the center osculum of waterstop pad 19 corresponding inner core tube 16 163 forms through holes 191, and side also forms a side opening 192.In order to increase the elasticity of waterstop pad 19, also arching upward on the waterstop pad 19 forms a ring resilience groove 193.

Sealing core 20 is fixed in this through hole 191.Cooperate shown in Figure 5ly, the side of sealing core 20 has 201 of side levers and is inserted in the side opening 192, forms drainage trough 202 on the side lever 201, and drainage trough 202 is communicated with the side water inlet 162 and the cavity volume A of inner core tube 16.Sealing core 20 is in the elastic groove 193, more help sealing core 20 fall to sealing inner core tube 16 center water outlet 163 or on lift the center water outlet 163 of opening inner core tube 16.

In order to alleviate hydraulic pressure better, present embodiment is also fixed a location piece 18 on the outer lug boss of inner core tube 16, cooperate shown in Figure 7, the side water inlet 162 and the center osculum 163 of location piece 18 corresponding inner core tube 16 are offered periphery hole 181 and center hole 182, and center hole 182 is stuck on the center osculum 163 of inner core tube 16, the water in the intake pipe 15 through side water inlet 162, periphery hole 181, center osculum 163 and following osculum 164 flow out.In order to guarantee water tightness, also be provided with flat cushion rubber 17 between location piece 18 and the outer lug boss 161 and realize sealing, perhaps with location piece 18 by ultrasonic welding or be bonded in and realize sealing on the outer lug boss 161.And present embodiment in the side water inlet 162 of radially departing from inner core tube 16, can further be alleviated hydraulic pressure with the side opening 192 of waterstop pad 19.

The utility model applies in the inlet valve, shown in Fig. 2,3.

In the use, cooperate Fig. 4, shown in Fig. 4-1, after cistern water level descends, keg float 30 descends thereupon, the lever that drives on the loam cake 22 clockwise rotates, aperture on the loam cake 22 is opened, hydraulic pressure between venting loam cake 22 and the waterstop pad 19 among the cavity volume A, waterstop pad 19 quilts are by intake pipe 15, the flow action that flow out side water inlet 162 is upwards lifted its periphery, when particularly forming a ring resilience groove 193 on the waterstop pad 19, make the elasticity of waterstop pad 19 increase, also can like a cork waterstop pad 19 be lifted by this better elastic even hydraulic pressure is low, the center water outlet 163 of inner core tube 16 is opened, water is through intake pipe 15, side water inlet 162, periphery hole 181, center water outlet 163, lower outlet 164 flows to water inlet body 11, and the water outlet through water inlet body 11 flows to water tank again, realizes water tank water intake.The utility model side water intake 162 is opened all the time, and it is little that the unlatching of center water outlet 163 is just influenced by hydraulic pressure, so, no matter intake pipe 15 hydraulic pressure height can both guarantee water tank water intake speed when water inlet.

After cistern water level rises, keg float 30 rises thereupon, the lever that drives on the loam cake 22 rotates counterclockwise, aperture on the loam cake 22 is blocked, enter between loam cake 22 and the waterstop pad 19 through the matching gap of side lever 201 and side opening 192 and drainage trough 202 that water discharges nowhere among the cavity volume A, amass into high pressure, waterstop pad 19 and sealing core 20 are pressed down, when particularly forming a ring resilience groove 193 on the waterstop pad 19, the elasticity of waterstop pad 19 is increased,, be subjected to very easily that hydraulic action presses down waterstop pad 19 like a cork among the cavity volume A by this better elastic, seal the center water outlet 163 of inner core tube 16, stop to water tank water intake.The utility model is 162 commutations through the side water inlet earlier because of the water in the intake pipe 15, enter again among the cavity volume A, water flow pressure is eased, therefore, can be not again with dirt band in the water in cavity volume A, avoid dirt to stop up the matching gap and the drainage trough 202 of this side lever 201 and side opening 192, guarantee sealing mechanism effect, guarantee the normal use of inlet valve.

Claims

1, the sealing mechanism of inlet valve is assembled between loam cake and the intake pipe, it is characterized in that: mainly be made up of sealing core, waterstop pad and inner core tube; Inner core tube fixedly is connected on the upper end of intake pipe, form outer lug boss on the tube wall of inner core tube, have side water inlet and center osculum on the outer lug boss, have the following osculum that is communicated with the center osculum under the outer lug boss, the water in the intake pipe through the side water inlet, center osculum and following osculum flow out; Waterstop pad is fixed on and covers, cavity volume between waterstop pad and the loam cake, and the center osculum of the corresponding inner core tube of waterstop pad forms through hole, and side also forms a side opening; The sealing core is fixed in this through hole, and the side of sealing core has a side lever and then is inserted in the side opening, forms drainage trough on the side lever, and drainage trough is communicated with the side water inlet and the cavity volume of inner core tube.

2, the sealing mechanism of inlet valve according to claim 1, it is characterized in that: fix a location piece on the outer lug boss of inner core tube, the side water inlet and the center osculum of the corresponding inner core tube of location piece are offered periphery hole and center hole, and center hole is stuck on the center osculum of inner core tube, the water in the intake pipe through the side water inlet, periphery hole, center osculum and following osculum flow out.

3, as the sealing mechanism of the inlet valve as described in the claim 2, it is characterized in that: be provided with flat cushion rubber between location piece and the outer lug boss.

4, as the sealing mechanism of the inlet valve as described in the claim 2, it is characterized in that: location piece and outer lug boss are by ultrasonic welding or bond together.

5, the sealing mechanism of inlet valve according to claim 1 is characterized in that: the side opening of waterstop pad is in the side water inlet of radially departing from inner core tube.

6, the sealing mechanism of inlet valve according to claim 1 is characterized in that: also arching upward on the waterstop pad forms a ring resilience groove, and the sealing core is in this elastic groove.