CN204083451U - For the switch valve of soda drinking machine - Google Patents

Abstract

The utility model discloses a kind of switch valve for soda drinking machine, comprise pressure cap (2), push rod (10), valve seat (8), O type circle (9), spring (5) and valve body (6), described valve seat (8) upper-end surface and the cooperation place of O type circle (9) are groove (12), valve seat (8) is provided with inclined hole (4), one end of inclined hole (4) is positioned at the bottom land edge of groove (12), and the other end of inclined hole (4) is positioned at the side-walls of valve seat (8).After adopting this structure, this inclined hole balances pressure and the water (flow) direction on O type circle surface, makes the installation of O type circle more stable, avoids that O type circle occurs and turns over stripping phenomenon, thus ensure that the airtight of valve does not leak.

Description

For the switch valve of soda drinking machine

Technical field

The utility model relates to valve technology field, is specifically a kind of switch valve for soda drinking machine controlling liquid communication on edible soda drinking machine.

Background technique

Switch valve on soda drinking machine is the valving of the liquid communication for controlling soda drinking machine.The switch valve for soda drinking machine of prior art, as shown in Figure 1, comprise pressure cap 02, valve body 04, valve assembly, spring 03 and safe plug screw assembly 06, pressure cap 02 is threaded in the upper end of valve body 04, valve assembly comprises push rod 09, valve seat 07 and O type circle 08, the upper gap of push rod 09 is engaged in pressure cap 02, O type circle 08 is embedded with in the middle part of push rod 09, O type circle 08 is socketed in the top of valve seat 07 simultaneously, O type circle 08 and pressure cap 02 form family of power and influence's door, push rod 09 lower end is threaded with valve seat 07, valve seat 07 is pushed against by spring 03 and valve body 04, there is in valve body 04 water intake 05 and the water outlet 010 of connection, safe plug screw assembly 06 is arranged on the side of valve body 04.The working principle of this switch valve is as follows: the pipeline connecting water intake 05 and water outlet 010 in advance; Under general state, valve, under the internal pressure of soda drinking machine and the effect of spring force, is be in closed condition; When needs are drunk water, press the push rod 09 in valve assembly, Open valve, water from water intake 05 through flow direction valve water outlet 010; When not needing drinking-water, unclamp the push rod 09 of valve assembly, valve seat 07 under the effect of spring 03 and drinking machine internal pressure on move, by valve closing.

But there is following shortcoming in the switch valve for soda drinking machine of above-mentioned this structure:

1) because the aqueous solution in soda drinking machine is soda water, and the composition of soda water is carbon carbonated drink solution, itself there is certain pressure, recess synchronous press mounting in valve assembly in the middle part of the recess on valve seat 07 top and push rod 09 O type circle 08, therefore, when O type circle in valve assembly 08 is about to seal with the aperture of pressure cap 02, the current produced under the pressure effect of carbon carbonated drink solution, the surface of O type circle 08 can be made to be subject to unbalanced impact force, thus easily generation O type circle turns over stripping phenomenon, now throttle down will not have seal action again, easily cause leakage;

2) up move under the valve seat 07 in valve assembly is subject to the effect of drinking machine internal pressure and acting force of the spring, the aperture end face close contact of last valve seat 07 upper-end surface and pressure cap 02, O type circle 08 easily enters between the junction plane of valve seat 07 and pressure cap 02 after being extruded distortion, this is because O type circle 08 is pressed in the recess of valve seat 07 upper-end surface by push rod 09 screw thread, and the sectional area of O type circle 08 is constant, can only walk to the direction had living space after it is extruded distortion, thus can cause be squeezed into valve seat 07 and pressure cap 02 junction plane between; Therefore, the frequent keying of valve, easily wearing and tearing O type circle, last O type circle lost efficacy, thus caused leaking.

In prior art: 01, water outlet; 02, pressure cap; 03, spring; 04, valve body; 05, water intake; 06, safe plug screw assembly; 07, valve seat; 08, O type circle; 09, push rod;

The utility model: 1, dust-proof cover; 2, pressure cap; 3, gap; 4, inclined hole; 5, spring; 6, valve body; 7, water intake; 8, valve seat; 9, O type circle; 10, push rod; 11, water outlet.

Model utility content

Technical problem to be solved in the utility model is, provides one can ensure the normal sealability of O type circle and can extend O type circle working life, thus avoids the switch valve for soda drinking machine that leaks.

For solving the problems of the technologies described above, the switch valve for soda drinking machine that the utility model provides, comprise pressure cap, push rod, valve seat, O type circle, spring and valve body, described pressure cap is threaded in the upper end of valve body, and the upper gap of push rod is engaged in pressure cap, and O type snare is connected in the middle part of push rod, valve seat is threaded with the lower end of push rod, the two ends of spring push against with valve seat and valve body respectively, have water intake and the water outlet of connection in valve body, and the contact of O type circle and pressure cap forms valve; The cooperation place of described valve seat upper-end surface and O type circle is groove, and valve seat is provided with inclined hole, and one end of inclined hole is positioned at the bottom land edge of groove, and the other end of inclined hole is positioned at the side-walls of valve seat.

Have gap between the cell wall of described groove and the maximum outside diameter of O type circle, the groove depth of groove is less than the diameter of section size of O type circle.

The water outlet of described valve seat upper end is socketed with dust-proof cover, and described pressure cap is positioned at dust-proof cover.

After adopting above structure, the utility model compared with prior art, has the following advantages:

1) because the valve seat in valve assembly is provided with inclined hole, one end of inclined hole communicates with groove, therefore, this inclined hole balances pressure and the water (flow) direction on O type circle surface, make the installation of O type circle more stable, avoid that O type circle occurs and turn over stripping phenomenon, thus ensure that the airtight of valve does not leak;

2) in addition, owing to there is gap between the cell wall of the groove of O type circle accommodating on valve seat upper-end surface and O type circle maximum outside diameter, therefore, when the valve is closed, under the effect of drinking machine internal pressure and spring, when valve assembly moving extruding O type circle, can walk to this gap after O type circle is extruded, and can not enter between valve seat and the junction plane of pressure cap, thus ensure the normal deformation of O type circle, while extending O type circle working life, also extend the working life of switch valve;

3) being provided with dust-proof cover at the water outlet of valve body upper end, is affect the performance of valve to water outlet be protected to avoid entering of dust before switch valve installation.

Accompanying drawing explanation

Fig. 1 is the structural representation for the switch valve of soda drinking machine in prior art.

Fig. 2 is the structural representation of the utility model for the switch valve of soda drinking machine.

Fig. 3 is the structure for amplifying schematic diagram in A portion in Fig. 2.

Wherein:

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.

The structural representation of the switch valve of soda drinking machine is used for from the utility model shown in Fig. 2 and Fig. 3, it comprises pressure cap 2, push rod 10, valve seat 8, O type circle 9, spring 5 and valve body 6, described pressure cap 2 is threaded in the upper end of valve body 6, the upper gap of push rod 10 is engaged in pressure cap 2, O type circle 9 is socketed in the middle part of push rod 10, valve seat 8 is threaded with the lower end of push rod 10, the two ends of spring 5 push against with valve seat 8 and valve body 6 respectively, water intake 7 and water outlet 11, the O type circle 9 in valve body 6 with connection form valve with the contact of pressure cap 2.The cooperation place of described valve seat 8 upper-end surface and O type circle 9 is groove 12, and valve seat 8 is provided with inclined hole 4, and one end of inclined hole 4 is positioned at the bottom land edge of groove 12, and the other end of inclined hole 4 is positioned at the side-walls of valve seat 8.

Have gap 3 between the cell wall of described groove 12 and the maximum outside diameter of O type circle 9, the groove depth of groove 12 is less than the diameter of section size of O type circle 9.

Water outlet 11 place of described valve seat 8 upper end is socketed with dust-proof cover 1, and described pressure cap 2 is positioned at dust-proof cover 1.

The working procedure of the utility model stop valve is as follows: first remove the dust-proof cover 1 on valve body 6 when this switch valve is installed, connect the pipeline of water intake 7 and water outlet 11; Under general state, valve, under the internal pressure of soda drinking machine and the effect of spring force, is be in closed condition; When needs are drunk water, press the push rod 10 in valve assembly, Open valve, water from water intake 7 through valve pocket, inclined hole, flow direction valve water outlet 11; When not needing drinking-water, unclamp the push rod 10 of valve assembly, valve seat 8 under the effect of spring 5 and drinking machine internal pressure on move, by valve closing.

Claims (3)

1. the switch valve for soda drinking machine, comprise pressure cap (2), push rod (10), valve seat (8), O type circle (9), spring (5) and valve body (6), described pressure cap (2) is threaded in the upper end of valve body (6), the upper gap of push rod (10) is engaged in pressure cap (2), O type circle (9) is socketed in push rod (10) middle part, valve seat (8) is threaded with the lower end of push rod (10), the two ends of spring (5) push against with valve seat (8) and valve body (6) respectively, there is in valve body (6) water intake (7) and the water outlet (11) of connection, O type circle (9) forms valve with the contact of pressure cap (2), it is characterized in that: described valve seat (8) upper-end surface and the cooperation place of O type circle (9) are groove (12), valve seat (8) is provided with inclined hole (4), one end of inclined hole (4) is positioned at the bottom land edge of groove (12), and the other end of inclined hole (4) is positioned at the side-walls of valve seat (8).

2. the switch valve for soda drinking machine according to claim 1, it is characterized in that: have gap (3) between the cell wall of described groove (12) and the maximum outside diameter of O type circle (9), the groove depth of groove (12) is less than the diameter of section size of O type circle (9).

3. the switch valve for soda drinking machine according to claim 2, it is characterized in that: water outlet (11) place of described valve seat (8) upper end is socketed with dust-proof cover (1), described pressure cap (2) is positioned at dust-proof cover (1).