CN220930328U - Mechanical valve switch and large flushing valve - Google Patents

Abstract

The utility model provides a mechanical valve switch and a large flushing valve, which comprises a valve seat, a key, a movable iron core assembly, a magnet and a key spring, wherein the valve seat is provided with a movable iron core accommodating cavity and a key accommodating cavity which are correspondingly arranged, an opening of the movable iron core accommodating cavity faces downwards, the movable iron core assembly is assembled in the movable iron core accommodating cavity and has downward elastic force, an opening of the key accommodating cavity faces upwards, the key is assembled in the key accommodating cavity in a lifting and movable mode, a magnet accommodating cavity is formed at the bottom of the key, a limit convex rib is protruded on the inner side wall of the magnet accommodating cavity, and the magnet is assembled in the magnet accommodating cavity and forms interference fit with the limit convex rib; the button spring is assembled in the button accommodating cavity, the lower end of the button spring is propped against the valve seat, and the upper end of the button spring is propped against the magnet. The mechanical valve switch only needs to overcome the elasticity of the key spring when being pressed each time, is not influenced by water pressure, and realizes light touch driving.

Description

Mechanical valve switch and large flushing valve

Technical Field

The utility model relates to the field of valve opening and closing, in particular to a mechanical valve opening and closing and a large flushing valve.

Background

The existing large flushing valve has two modes for controlling water outlet, one is that an electromagnetic valve is switched on and off to control water outlet, and power is needed to be supplied; the other is that the mechanical valve switch controls water outlet, and the manual operation is performed without power on. The two paths of switches can independently control the water outlet of the large flushing valve.

The existing mechanical valve switch is as shown in a manual drainage valve in a drainage device disclosed in CN110185106B, and the drainage valve has the defects that the switch is pressed by water pressure to cause difficult pressing, and when the water pressure is high, the switch needs to be pressed by large force or even can not be pressed to be opened.

Disclosure of utility model

To solve the above problems, the present utility model provides a mechanical valve switch and a large-stroke valve.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

The mechanical valve switch comprises a valve seat, a key, a movable iron core assembly, a magnet and a key spring, wherein the valve seat is provided with a movable iron core accommodating cavity and a key accommodating cavity which are correspondingly arranged, an opening of the movable iron core accommodating cavity faces downwards, the movable iron core assembly is assembled in the movable iron core accommodating cavity and has downward elastic force, an opening of the key accommodating cavity faces upwards, the key is assembled in the key accommodating cavity in a lifting mode, a magnet accommodating cavity is formed at the bottom of the key, a limit convex rib is arranged on the inner side wall of the magnet accommodating cavity in a protruding mode, and the magnet is assembled in the magnet accommodating cavity and forms interference fit with the limit convex rib; the button spring is assembled in the button accommodating cavity, the lower end of the button spring is propped against the valve seat, and the upper end of the button spring is propped against the magnet.

Further, a limiting structure is arranged between the key and the valve seat so as to limit the key to be separated from the valve seat.

Further, the limiting structure is a limiting step formed on the valve seat and a back-off formed on the key, and the limiting step is matched with the back-off to limit the key to be separated from the valve seat.

Further, a plurality of gaps penetrating through the magnet accommodating cavity are formed in the bottom of the key, so that a plurality of elastic pieces are formed on the side wall of the magnet accommodating cavity, and the limiting step is formed on the elastic pieces.

Furthermore, a guide groove is further formed in the valve seat, and the limiting step of the key is further matched with the guide groove to form guide matching.

Further, the movable iron core assembly comprises a movable iron core, a plug and a movable iron core spring, the movable iron core is assembled in the movable iron core accommodating cavity in a lifting mode, the plug is assembled at the bottom of the movable iron core, and the movable iron core spring is assembled in the movable iron core accommodating cavity and applies downward elastic force to the movable iron core.

The large flushing valve comprises a valve body with a water inlet cavity, a water outlet cavity and a back pressure cavity, and further comprises the mechanical valve switch, wherein a movable iron core component of the mechanical valve switch seals the pressure relief hole through self elasticity.

Further, the pressure relief holes are formed in two, the large flushing valve further comprises an electric valve switch, and the mechanical valve switch and the electric valve switch respectively control one pressure relief hole.

The technical scheme provided by the utility model has the following beneficial effects:

According to the scheme provided by the application, the key is pressed by external force, the key drives the magnet to move downwards together to be close to the movable iron core assembly, and the movable iron core assembly is attracted by the magnetic attraction of the magnet to move upwards, so that the pressure release hole is opened, and water is discharged from the large flushing valve; after the external force is removed, the key and the magnet move upwards to reset under the drive of the key spring, and the movable iron core component moves downwards to reset and re-plug the pressure release hole. The mechanical valve switch only needs to overcome the elasticity of the key spring when being pressed each time, is not influenced by water pressure, and realizes light touch driving.

The magnet forms interference fit with the spacing protruding muscle, and the button spring supports on the magnet, and magnet installation is firm for simple structure, the action is reliable.

Drawings

FIG. 1 shows a cross-sectional view of a mechanical valve switch in an embodiment;

FIG. 2 is an exploded view of a mechanical valve switch according to an embodiment;

FIG. 3 shows a cross-sectional view of a valve seat of a mechanical valve switch in an embodiment;

FIG. 4 is a schematic diagram showing a key structure of a mechanical valve switch according to an embodiment;

FIG. 5 is a schematic diagram showing a second structure of a key of a mechanical valve switch according to the embodiment;

FIG. 6 is a schematic view showing the appearance of a large flush valve according to an embodiment;

fig. 7 shows a cross-sectional view of a large flush valve in an embodiment.

The drawings are marked:

10. A valve seat; 11. a limit step; 12. a guide groove; 13. a movable iron core accommodating cavity; 14. a key receiving chamber; 20. a key; 21. limiting convex ribs; 22. a spring plate; 23. reversing; 24. a magnet accommodating chamber; 25. a notch; 31. a magnet; 32. a key spring; 33. a movable iron core; 34. a movable iron core spring; 35. a plug; 36. a movable iron core assembly; 100. a valve body; 103. a back pressure chamber; 104. a pressure relief hole; 200 mechanical valve switch; 300. and an electric valve switch.

Detailed Description

For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

The utility model will now be further described with reference to the drawings and detailed description.

Referring to fig. 1 to 5, the mechanical valve switch 200 provided in this embodiment includes a valve seat 10, a key 20, a moving core assembly 36, a magnet 31 and a key spring 32, where the valve seat 10 has a moving core accommodating cavity 13 and a key accommodating cavity 14 that are correspondingly disposed, an opening of the moving core accommodating cavity 13 is downward, and the moving core assembly 36 is assembled in the moving core accommodating cavity and has a downward elastic force, that is, the moving core assembly moves downward by virtue of the downward elastic force under no external force, so as to be used for blocking the pressure release hole 104 of the large-flushing valve as shown in fig. 7.

The opening of the key accommodating cavity 14 faces upwards, the key 20 is assembled in the key accommodating cavity 14 in a lifting and moving mode, a magnet accommodating cavity 24 is formed at the bottom of the key 20, a limit convex rib 21 protrudes from the inner side wall of the magnet accommodating cavity 24, and the magnet 31 is assembled in the magnet accommodating cavity 24 and forms interference fit with the limit convex rib 21; the key spring 32 is assembled in the key accommodating chamber 14, the lower end of the key spring is abutted against the valve seat 10, and the upper end of the key spring is abutted against the magnet 31, namely, the key spring 32 exerts upward elastic force on the key 20 and the magnet 31.

With continued reference to fig. 6 and 7, this embodiment further provides a large flushing valve, including the valve body 100 with intake chamber, apopore and backpressure chamber 103, backpressure chamber 103 has pressure release hole 104, and when pressure release hole 104 was shutoff, the passageway between intake chamber and the apopore was finally shutoff to the volume grow of backpressure chamber 103, and when pressure release hole 104 was opened, backpressure chamber 103 began to release to open the passageway between intake chamber and the apopore, intake chamber and apopore were linked together this moment, and large flushing valve goes out water.

Specifically, the valve seat 10 of the mechanical valve switch 200 is assembled on the valve body 100 of the large-flushing valve, and the movable iron core assembly 36 of the mechanical valve switch 200 seals the pressure release hole 104 by self-elasticity. Namely, under the action of no external force, the movable iron core assembly 36 moves downwards by virtue of downward elasticity of the movable iron core assembly to be used for plugging the pressure relief hole 104 of the large flushing valve; and key 20 and magnet 31 are moved away from plunger assembly 36 by the upward spring force exerted by key spring 32.

When the large flushing valve needs to discharge water, the key 20 of the mechanical valve switch 200 is pressed by external force, the key 20 drives the magnet 31 to move downwards together to be close to the movable iron core assembly 36, and the movable iron core assembly 36 is attracted by the magnetic attraction of the magnet 31 to move upwards, so that the pressure release hole 104 is opened, and the large flushing valve discharges water; after the external force is removed, the key 20 and the magnet 31 move upwards to reset under the drive of the key spring 32, and the movable iron core assembly 36 moves downwards to reset and reseat the pressure release hole 104. The mechanical valve switch 200 can be pressed each time only by overcoming the elastic force of the key spring 32, and is not influenced by water pressure, so that light touch driving is realized.

Meanwhile, the magnet 31 and the limiting convex rib 21 form interference fit, the key spring 32 is propped against the magnet 31, and the magnet 31 is firmly installed, so that the structure is simple, and the action is reliable.

The movable iron core assembly 36 comprises a movable iron core 33, a plug 35 and a movable iron core spring 34, wherein the movable iron core 33 is assembled in the movable iron core accommodating cavity 13 in a lifting mode, the plug 35 is assembled at the bottom of the movable iron core 33, and the movable iron core spring 34 is assembled in the movable iron core accommodating cavity 13 and applies downward elastic force to the movable iron core 33, so that the movable iron core assembly 36 has the downward elastic force; the plug 35 corresponds to the pressure relief hole 104 to block the pressure relief hole 104. When the key 20 is pressed to move the magnet 31 downwards, the movable iron core 33 is attracted by the magnet 31 to overcome the elastic force of the movable iron core spring 34 and move upwards, so that the pressure relief hole 104 is opened, after the magnet 31 moves upwards and resets, the movable iron core 33 moves downwards and resets under the action of the movable iron core spring 34, and the plug 35 plugs the pressure relief hole 104 again. The movable iron core assembly 36 adopted in the embodiment has a simple structure, and is stable and reliable. Of course, in other embodiments, the structure of the plunger assembly 36 is not limited thereto.

Further, a limiting structure is provided between the key 20 and the valve seat 10 to limit the key 20 from being separated from the valve seat 10. Specifically, the limiting structure comprises a limiting step 11 formed on the valve seat 10 and an inverted buckle 23 formed on the key 20, and the limiting step 11 is matched with the inverted buckle 23 to limit the key 20 to be separated from the valve seat 10. As shown in fig. 1, when the key 20 is not pressed, the lower parts of the key 20 and the magnet 31 are propped against by the key spring 32, and the back-off 23 of the key 20 is propped against the limit step 11 of the valve seat 10 to realize fixation.

In order to ensure that the key 20 can be smoothly installed, a plurality of notches 25 penetrating into the magnet accommodating cavity 24 are formed at the bottom of the key 20, so that a plurality of elastic pieces 22 are formed on the side wall of the magnet accommodating cavity 24, and the back-off 23 is formed on the elastic pieces 22. When the button is assembled, the elastic sheet 22 deforms inwards, so that the button 20 is smoothly inserted into the button accommodating cavity 14 of the valve seat 10.

The valve seat 10 is further provided with a guide groove 12, and the back-off 23 of the key 20 is further matched with the guide groove 12 to form guide matching. Thus, the pressing is smoother.

Specifically, the guide groove 12 of the valve seat 10 is formed when the limit step 11 is punched, that is, when the valve seat 10 punches the limit step 11 from bottom to top, the punched part forms the guide groove 12, and no separate preparation is needed.

The above-mentioned assembly structure of the key 20 and the valve seat 10 is one of the preferred embodiments, and of course, in other embodiments, the assembly structure of the key 20 and the valve seat 10 is not limited thereto.

Further, in this embodiment, two pressure relief holes 104 are provided, the large flushing valve further includes an electric valve switch 300, and the mechanical valve switch 200 and the electric valve switch 300 each control one pressure relief hole 104. Specifically, the electric valve switch 300 is a solenoid valve switch in the prior art, and can automatically control the water outlet of the large flushing valve after being electrified.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (8)

1. A mechanical valve switch, characterized by: the movable iron core assembly is assembled in the movable iron core accommodating cavity and has downward elasticity, the opening of the key accommodating cavity is upward, the key is assembled in the key accommodating cavity in a liftable and movable mode, the bottom of the key is provided with a magnet accommodating cavity, the inner side wall of the magnet accommodating cavity is provided with a limiting convex rib in a protruding mode, and the magnet is assembled in the magnet accommodating cavity and forms interference fit with the limiting convex rib; the button spring is assembled in the button accommodating cavity, the lower end of the button spring is propped against the valve seat, and the upper end of the button spring is propped against the magnet.

2. The mechanical valve switch of claim 1, wherein: and a limiting structure is arranged between the key and the valve seat so as to limit the key to be separated from the valve seat.

3. The mechanical valve switch of claim 2, wherein: the limiting structure is a limiting step formed on the valve seat and a back-off formed on the key, and the limiting step is matched with the back-off to limit the key to be separated from the valve seat.

4. A mechanical valve switch according to claim 3, characterized in that: the bottom of button has seted up a plurality of breach that link up to magnet and hold the chamber, and then makes the lateral wall that magnet held the chamber form a plurality of shell fragments, spacing step forms on the shell fragment.

5. A mechanical valve switch according to claim 3 or 4, characterized in that: the valve seat is also provided with a guide groove, and the limit step of the key is also matched with the guide groove to form guide matching.

6. The mechanical valve switch of claim 1, wherein: the movable iron core assembly comprises a movable iron core, a plug and a movable iron core spring, the movable iron core is assembled in the movable iron core accommodating cavity in a lifting mode, the plug is assembled at the bottom of the movable iron core, and the movable iron core spring is assembled in the movable iron core accommodating cavity and applies downward elastic force to the movable iron core.

7. The utility model provides a big towards valve, includes the valve body that has inlet chamber, apopore and backpressure chamber, backpressure chamber has pressure release hole, its characterized in that: the mechanical valve switch of any one of claims 1-6, wherein the plunger assembly of the mechanical valve switch seals the pressure relief hole by self-elasticity.

8. The large flush valve of claim 7, wherein: the pressure relief holes are formed in two, the large flushing valve further comprises an electric valve switch, and the mechanical valve switch and the electric valve switch respectively control one pressure relief hole.