CN212839419U

CN212839419U - Hot water electromagnetic valve for coffee machine

Info

Publication number: CN212839419U
Application number: CN202021502743.6U
Authority: CN
Inventors: 张伟军
Original assignee: Ningbo Shengqiang Chenyi Electronic Technology Co ltd
Current assignee: Ningbo Shengqiang Chenyi Electronic Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-03-30
Anticipated expiration: 2030-07-27

Abstract

The utility model discloses a hot water solenoid valve for coffee machine, including valve body and guide's subassembly, import and export have been seted up to the valve body, have still seted up the valve pocket in the valve body, and the import is linked together through first passageway with the valve pocket, and the export passes through the second passageway with the valve pocket and links to each other the switch-on, and guide's subassembly passes through lock nut and installs on the valve body, and guide's subassembly is provided with annular turn-ups including separating magnetic sleeve, the lower extreme that separates magnetic sleeve, lock nut threaded connection on the valve body, and annular turn-ups compresses tightly locates between lock nut and. The utility model has the advantages of it is following and effect: the new mechanical structure of this scheme utilization adopts and sets up the turn-ups of annular mode at the lower extreme that separates the magnetic sleeve to compress tightly the turn-ups of annular between valve body and lock nut inner wall through lock nut, so, not only have higher leakproofness, it is more convenient with the installation moreover to produce, and the cost is also lower relatively.

Description

Hot water electromagnetic valve for coffee machine

Technical Field

The utility model relates to a solenoid valve technical field, in particular to hot water solenoid valve for coffee machine.

Background

Two-position two-way direct-acting solenoid valves are commonly used in coffee makers to control the on-off of hot water.

At present, a two-position two-way direct-acting electromagnetic valve mainly comprises a valve body and a pilot head arranged on the valve body, wherein the pilot head is generally fixedly connected with the valve body through a magnetic isolation sleeve. In a common two-position two-way direct-acting electromagnetic valve in the market, the magnetic isolation sleeve of a pilot head and a valve body are generally connected in the following two connection modes, wherein the first mode is as follows: the magnetic isolation sleeve is provided with the outer thread at the bottom, and the magnetic isolation sleeve is fixed with the valve body by the outer thread, for example, the two-position two-way electromagnetic valve disclosed as 201810060724.3 has the defects that the bottom of the magnetic isolation sleeve is provided with the thread, so that the processing difficulty is high, and the rejection rate and the cost are high; the second way is: set up a gland on the valve body, press the bottom of magnetic isolation sleeve pipe and establish between gland and valve body to through screw with gland valve body fixed connection, like the two-position two-way solenoid valve that application number 201721376493.4 disclosed, the defect that this kind of mode exists is, 1, need fix the gland through the screw, and the installation is inconvenient, 2, be difficult to ensure the leakproofness of the junction between gland, magnetic isolation sleeve pipe and the valve body three, the seepage phenomenon appears easily during the use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a coffee machine hot water solenoid valve has production and simple to operate, the better effect of leakproofness.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a hot water solenoid valve for coffee machine, includes valve body and guide's subassembly, import and export have been seted up to the valve body, the valve pocket has still been seted up in the valve body, import and valve pocket are linked together through first passageway, export and valve pocket pass through the second passageway and link to each other the switch-on, guide's subassembly passes through lock nut and installs on the valve body, guide's subassembly is including separating the magnetic sleeve, it is provided with annular turn-ups outwards to separate the lower extreme of magnetic sleeve, lock nut threaded connection is on the valve body, annular turn-ups compresses tightly and locates between lock.

Through adopting above-mentioned technical scheme, when the installation, embolia lock nut from the upper end of the magnetism-isolating sleeve pipe of guide's subassembly earlier, make annular turn-ups and lock nut inner wall offset, then install other spare parts of guide's subassembly on the magnetism-isolating sleeve pipe, at last with lock nut threaded connection on the valve body, when lock nut screws up on the valve body, can compress tightly the annular turn-ups between lock nut and valve body, so, not only have higher leakproofness, and production and installation process are more convenient moreover, and the cost is also lower relatively.

The utility model discloses a further set up to: the end face of the valve body, which is positioned in the locking nut, is provided with an annular embedded groove, an O-shaped sealing ring is embedded in the embedded groove, one end of the O-shaped sealing ring is abutted against the bottom wall of the embedded groove, and the other end of the O-shaped sealing ring is abutted against the inner top wall of the locking nut.

By adopting the technical scheme, the upper end face of the O-shaped sealing ring is in sealing fit with the magnetic isolation sleeve, the lower end face of the O-shaped sealing ring is in sealing fit with the valve body, and the magnetic isolation sleeve and the valve body form end face seal at the joint, so that the sealing performance is better.

The utility model discloses a further set up to: and a compression ring is convexly arranged on the inner top wall of the locking nut and is in compression fit with the O-shaped sealing ring.

Through adopting above-mentioned technical scheme, clamp ring and O shape sealing washer cooperation make sealed effect better.

The utility model discloses a further set up to: the pilot assembly further comprises a movable iron core, a static iron core and a coil, the static iron core is fixedly arranged in the magnetism isolating sleeve, the movable iron core is movably arranged in the magnetism isolating sleeve, the coil is arranged outside the magnetism isolating sleeve, the lower end of the movable iron core extends into the valve cavity, and the lower end of the movable iron core is abutted and matched with the passage opening of the second passage.

The utility model discloses a further set up to: the lower end of the movable iron core is provided with a sealing gasket, and the sealing gasket is matched with the channel opening of the second channel in an abutting mode.

Through adopting above-mentioned technical scheme, when moving the iron core and move under the absorption of quiet iron core, drive sealed the pad motion, when sealed the pad and break away from the passage mouth of second passageway, can make valve pocket and export circulation.

The utility model discloses a further set up to: the side wall of the lower end of the movable iron core is provided with a retaining ring, a return spring is arranged between the retaining ring and the magnetism-isolating sleeve, one end of the return spring is abutted against the retaining ring, the other end of the return spring is abutted against the inner wall of the magnetism-isolating sleeve, and the return spring enables the movable iron core to always have the movement trend of abutting against the channel opening of the second channel.

Through adopting above-mentioned technical scheme, when moving the iron core and no longer receiving the adsorption affinity of quiet iron core, will automatic re-setting under reset spring's elasticity for the lower extreme that moves the iron core supports again in the passway mouth of second passageway and realizes sealedly.

The utility model discloses a further set up to: the reset spring is a tower spring.

The utility model discloses a further set up to: the lateral wall of quiet iron core is provided with spacing step, spacing step and the spacing cooperation in magnetism isolation sleeve's top, and threaded connection has set nut on the quiet iron core, is provided with the packing ring between set nut and the solenoid.

The utility model discloses a further set up to: the valve body is a plastic valve body.

Through adopting above-mentioned technical scheme, set up the valve body into the plastics valve body, have the effect of matter light, the transportation of being convenient for.

To sum up, the utility model discloses following beneficial effect has:

1. the mode that the annular flanging is arranged at the lower end of the magnetism isolating sleeve is adopted, and the annular flanging is tightly pressed between the valve body and the inner wall of the locking nut through the locking nut, so that the magnetic valve has high sealing performance, is convenient to produce and install, and has relatively low cost;

2. the O-shaped sealing ring and the pressing ring are arranged between the valve body and the locking nut and are matched with each other, so that the sealing performance is better.

Drawings

Fig. 1 is a sectional view of the internal structure of the embodiment.

Fig. 2 is an enlarged view of the area a in fig. 1.

Figure 3 is an enlarged view of area B of figure 1,

in the figure: 1. a valve body; 11. an inlet; 12. an outlet; 13. a valve cavity; 14. a first channel; 15. a second channel; 16. a groove is embedded; 2. locking the nut; 21. a compression ring; 3. a magnetic isolation sleeve; 31. annular flanging; 4. a movable iron core; 41. a gasket; 42. a retainer ring; 5. a stationary iron core; 51. a limiting step; 6. a coil; 7. a return spring; 8. an O-shaped sealing ring; 9. positioning a nut; 10. a gasket.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

A hot water solenoid valve for a coffee machine is shown in figure 1 and comprises a valve body 1 and a pilot assembly, wherein the valve body 1 is a plastic valve body, and the hot water solenoid valve has the advantages of light weight and convenience in transportation. The valve body 1 is connected with the pilot assembly through the locking nut 2, the right end of the valve body 1 is horizontally provided with an inlet 11, the left end of the valve body 1 is horizontally provided with an outlet 12, the valve cavity 13 is further formed in the valve body 1, the inlet 11 is communicated with the valve cavity 13 through the first passage 14, and the outlet 12 is communicated with the valve cavity 13 through the second passage 15. The pilot assembly comprises a magnetism isolating sleeve 3, a movable iron core 4, a static iron core 5 and a coil 6, wherein the static iron core 5 is fixedly arranged in the magnetism isolating sleeve 3, the movable iron core 4 is movably arranged in the magnetism isolating sleeve 3, the coil 6 is arranged outside the magnetism isolating sleeve 3, the lower end of the movable iron core 4 extends into the valve cavity 13, a sealing gasket 41 is arranged at the lower end of the movable iron core 4, and the sealing gasket 41 is matched with a channel opening of the second channel 15 in an abutting mode. The outer side wall of the lower end of the movable iron core 4 is provided with a retainer ring 42, a return spring 7 is arranged between the retainer ring 42 and the magnetism isolating sleeve 3, the lower end of the return spring 7 is abutted against the retainer ring 42, the upper end of the return spring 7 is abutted against the inner wall of the magnetism isolating sleeve 3, the return spring 7 enables the movable iron core 4 to always have the movement tendency of abutting against the channel opening of the second channel 15, and in the embodiment, the return spring 7 is a tower-shaped spring.

When the coil is electrified, the movable iron core 4 moves under the adsorption of the static iron core 5 to drive the sealing gasket 41 to move, and when the sealing gasket 41 is separated from the channel opening of the second channel 15, the valve cavity 13 can be communicated with the outlet 12. When the movable iron core 4 is no longer subjected to the adsorption force of the static iron core 5, the movable iron core is automatically reset under the action of the elastic force of the reset spring 7, so that the lower end of the movable iron core 4 is propped against the passage opening of the second passage 15 again to realize sealing.

As shown in fig. 1 and 2, the lower end of the magnetic isolation sleeve 3 is provided with an annular flange 31 in the outward circumferential direction, the locking nut 2 is provided with an internal thread, the valve body 1 is provided with an external thread, the locking nut 2 is connected to the valve body 1 in a threaded manner, and the annular flange 31 is tightly pressed between the locking nut 2 and the valve body 1. An annular embedded groove 16 is formed in the upper end face, located in the locking nut 2, of the valve body 1, an O-shaped sealing ring 8 is embedded in the embedded groove 16, the lower end of the O-shaped sealing ring 8 abuts against the bottom wall of the embedded groove 16, and the upper end of the O-shaped sealing ring 8 abuts against the inner top wall of the locking nut 2. The inner top wall of the locking nut 2 is convexly provided with a pressing ring 21, and the pressing ring 21 is in pressing fit with the O-shaped sealing ring 8.

As shown in fig. 1 and 3, a side wall of the stationary core 5 is provided with a limit step 51, the limit step 51 is in limit fit with the top end of the magnetism isolating sleeve 3, the upper end of the stationary core 5 is in threaded connection with a positioning nut 9, and a gasket 10 is arranged between the positioning nut 9 and the coil 6.

The utility model discloses a basic operating principle does: when the magnetic isolation valve is installed, the locking nut 2 is sleeved from the upper end of the magnetic isolation sleeve 3, the annular flange 31 is abutted to the inner top wall of the locking nut 2, then the movable iron core 4 and the static iron core 5 are installed in the magnetic isolation sleeve 3, the coil 6 is installed outside the magnetic isolation sleeve 3, finally the locking nut 2 is connected to the valve body 1 in a threaded mode, when the locking nut 2 is screwed on the valve body 1, the annular flange 31 can be tightly pressed between the locking nut 2 and the valve body 1, the upper end face of the O-shaped sealing ring 8 is in sealing fit with the pressing ring 21, the lower end face of the O-shaped sealing ring 8 is in sealing fit with the valve body 1, the magnetic isolation sleeve 3 and the valve body 1 form end face seal at the joint, and the magnetic isolation sleeve. Therefore, the sealing structure has high sealing performance, is convenient to produce and install, and is relatively low in cost.

The utility model discloses a using-way is the same with prior art, no longer gives unnecessary details here one by one.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a hot water solenoid valve for coffee machine, includes valve body (1) and guide's subassembly, import (11) and export (12) have been seted up in valve body (1), valve chamber (13) have still been seted up in valve body (1), import (11) with valve chamber (13) are linked together through first passageway (14), export (12) with valve chamber (13) link to each other the switch-on through second passageway (15), its characterized in that: the pilot assembly is installed on the valve body (1) through a locking nut (2), the pilot assembly comprises a magnetic isolation sleeve (3), an annular flange (31) is outwards arranged at the lower end of the magnetic isolation sleeve (3), the locking nut (2) is in threaded connection with the valve body (1), and the annular flange (31) is tightly pressed and arranged between the locking nut (2) and the valve body (1).

2. A hot water solenoid valve for a coffee machine according to claim 1, characterized in that: the valve body (1) is located the terminal surface in the lock nut (2) has been seted up annular embedded groove (16), embedded O shape sealing washer (8) that is equipped with in embedded groove (16), the one end of O shape sealing washer (8) support tightly in embedded groove (16) diapire, the other end of O shape sealing washer (8) support tightly in roof in lock nut (2).

3. A hot water solenoid valve for a coffee machine according to claim 2, characterized in that: and a compression ring (21) is convexly arranged on the inner top wall of the locking nut (2), and the compression ring (21) is in compression fit with the O-shaped sealing ring (8).

4. A hot water solenoid valve for a coffee machine according to claim 1, characterized in that: guide's subassembly is still including moving iron core (4), quiet iron core (5) and solenoid (6), quiet iron core (5) fixed set up in separate magnetism sleeve pipe (3) in, move iron core (4) activity set up in separate magnetism sleeve pipe (3) in, solenoid (6) are located separate magnetism sleeve pipe (3) outer, the lower extreme that moves iron core (4) stretch into in valve pocket (13), the lower extreme that moves iron core (4) with the port of second passageway (15) offsets the cooperation.

5. A hot water solenoid valve for a coffee machine according to claim 4, characterized in that: the lower end of the movable iron core (4) is provided with a sealing gasket (41), and the sealing gasket (41) is matched with a channel opening of the second channel (15) in an abutting mode.

6. A hot water solenoid valve for a coffee machine according to claim 4, characterized in that: the lower end side wall of the movable iron core (4) is provided with a check ring (42), a return spring (7) is arranged between the check ring (42) and the magnetism isolating sleeve (3), one end of the return spring (7) is abutted to the check ring (42), the other end of the return spring (7) is abutted to the inner wall of the magnetism isolating sleeve (3), and the return spring (7) enables the movable iron core (4) to always have the movement trend of abutting to the passage opening of the second passage (15).

7. A hot water solenoid valve for a coffee machine according to claim 6, characterized in that: the return spring (7) is a tower-shaped spring.

8. A hot water solenoid valve for a coffee machine according to claim 4, characterized in that: the lateral wall of quiet iron core (5) is provided with spacing step (51), spacing step (51) with the top limit cooperation of magnetism sleeve pipe (3) separates, threaded connection has set nut (9) on quiet iron core (5), set nut (9) with be provided with packing ring (10) between solenoid (6).

9. A hot water solenoid valve for a coffee machine according to claim 1, characterized in that: the valve body (1) is a plastic valve body.