CN213808984U - Push-button switch valve core with improved water inlet and outlet mode - Google Patents

Abstract

A key switch valve core with improved water inlet and outlet modes comprises a valve shell, wherein an upper cavity and a lower cavity which are separated from each other are arranged in the valve shell; the diaphragm assembly is arranged in the lower chamber and is provided with a water diversion hole and a pressure relief hole; the first spring is arranged in the lower chamber and enables the diaphragm assembly to have a downward moving movement tendency; a plugging component; the spinning positioning structure is used for driving the plugging component to axially move in the valve shell and locking the axial position of the plugging component; the water inlet is arranged at the bottom of the lower cavity, and the water outlet is arranged on the peripheral wall of the lower cavity; the axial movement of the plugging component can open or plug the pressure relief hole, so that the diaphragm component is controlled to open and close the water outlet. The utility model relates to a business turn over water mode modified button switch case can improve the mechanical strength of valve casing in order to promote the mechanical strength of case to can promote the life of case.

Description

Push-button switch valve core with improved water inlet and outlet mode

Technical Field

The utility model relates to a bathroom equipment field especially relates to a button switch case of business turn over water mode improvement.

Background

The valve core is used as a core component of the faucet and mainly realizes the basic functions of direction control, pressure control or flow control by means of the movement of the valve rod. At present, valve cores on the market are divided into a pressing type switch valve core and a rotary type switch valve core according to the movement mode of a valve rod, so that the water faucet realizes the pressing opening and closing and the rotary opening and closing of a water supply pipeline. The switch valve core is easy to wear during rotation, the service life of the valve core is influenced, and the press type switch valve core is small in service wear and long in service life.

The chinese utility model patent with patent number CN201821915409.6 (No. CN209245289U) discloses a key switch valve core, which comprises a lower valve body and an upper valve body, wherein the lower valve body is provided with a water inlet tank and a drain hole, the lower valve body and the upper valve body together form an inner cavity, the inner cavity is provided with a control shaft, a water sealing plate and an elastic water sealing member, the water sealing plate is provided with a shaft hole for the control shaft to penetrate, the water sealing member is provided with a communication hole and a pressure relief hole, the circumferential movement of the control shaft in the shaft hole can open or block the pressure relief hole to control the water sealing member to open and close the drain hole; the inner cavity is also internally provided with a pressing piece, a rotating piece and a spring, the spring sleeve enables the control shaft to have an upward movement trend to prop against the rotating piece, a rotating structure is arranged between the pressing piece and the rotating piece, and the rotating structure can convert the downward pressing of the pressing piece into the axial movement and the circumferential rotation of the rotating piece, so that the axial movement of the control shaft is driven and the axial position of the control shaft is locked.

The switch valve core has the following defects: firstly, a water inlet groove of the valve core is arranged in the circumferential direction of the lower valve body, and a drain hole is arranged at the bottom of the lower valve body, usually, in order to ensure that the pressure of a water inlet cavity is enough to enable an elastic water sealing piece to be uniformly deformed and completely open the drain hole, a plurality of water inlet grooves are uniformly arranged at intervals along the circumferential direction of the lower valve body so as to increase the total water inlet area, however, the increase of the total water inlet area can enable a peripheral wall gap of the lower valve body to be larger, so that the mechanical strength of the lower valve body is reduced, and the mechanical strength of the valve core is influenced; secondly, the axial positioning of the control shaft can be switched only by pressing a button down for a large stroke, so that the opening and closing state of the valve core is switched, and the user is forced to press the valve core.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that a press key switch case that business turn over water mode improves is provided to foretell technical current situation, can improve the mechanical strength of valve casing in order to promote the mechanical strength of case to can promote the life of case.

The utility model discloses the second technical problem that will solve provides a button switch case that business turn over water mode improves to foretell technical current situation, thereby the button pushes down the less messenger user switch case of stroke more laborsaving.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a button switch valve core with improved water inlet and outlet modes comprises:

a valve housing in which an upper chamber and a lower chamber are partitioned from each other;

the diaphragm assembly is arranged in the lower chamber and is provided with a water diversion hole and a pressure relief hole;

the first spring is arranged in the lower chamber and enables the diaphragm assembly to have a downward moving movement tendency;

the plugging component is used for plugging the air inlet pipe,

the spinning positioning structure is used for driving the plugging component to axially move in the valve shell and locking the axial position of the plugging component;

it is characterized in that the preparation method is characterized in that,

the bottom of the lower cavity is provided with a water inlet, and the peripheral wall of the lower cavity is provided with a water outlet; the axial movement of the plugging component can open or plug the pressure relief hole, so that the diaphragm component is controlled to open and close the water outlet.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: the spinning positioning structure comprises a deep groove and a shallow groove which are axially arranged on the inner peripheral wall of the upper cavity at intervals, a button which is axially movably arranged in the upper cavity, a rotating sleeve which can drive the plugging component to axially move, and a fixing sleeve which is axially fixed in the valve shell, wherein a positioning block which can axially slide in the deep groove or the shallow groove is arranged on the peripheral wall of the rotating sleeve, the spinning positioning structure also comprises a second spring which is arranged in the upper cavity and enables the positioning block to always have an upward movement trend, a first rotating structure is arranged between the rotating sleeve and the button, a second rotating structure is arranged between the rotating sleeve and the fixing sleeve, and the combined action of the first rotating structure and the second rotating structure can enable the single axial movement of the button to be converted into the axial movement and the circumferential rotation of the rotating sleeve so as to switch the positioning block to be positioned in the deep groove or the shallow groove, thereby locking the axial position of the occluding assembly.

As a specific design of the first rotating structure and the second rotating structure, the first rotating structure comprises a plurality of triangular protrusions distributed at intervals at the upper end of the rotating sleeve and a wavy surface arranged at the lower end of the button and used for abutting against the triangular protrusions, and the second rotating structure is a plurality of one-way teeth arranged at intervals at the upper end of the fixed sleeve and used for abutting against the lower end of the positioning block.

In order to reduce the friction between the rotating sleeve and the valve rod seat, the bottom of the rotating sleeve is provided with at least one spherical bulge. The design of the spherical bulge can reduce the contact area between the rotating sleeve and the valve rod seat, so that the friction force between the rotating sleeve and the valve rod seat is reduced, and the rotating sleeve can rotate more smoothly.

In order to enable the rotating sleeve to drive the plugging component to axially move, the plugging component comprises a valve rod which can axially move and is arranged in the fixed sleeve in a penetrating mode, and a valve rod seat which is arranged in the upper cavity and is in linkage with the valve rod, and the second spring is arranged between the valve rod seat and the fixed sleeve, so that the valve rod seat has an upward movement trend and supports the rotating sleeve.

In order to be convenient for the axial displacement of valve rod to open or block up the pressure release hole, including being located in the diaphragm subassembly pressure release hole top or below and confession the first sealing washer that the lower part of valve rod was worn to establish, the lower part of valve rod has first insertion portion and second insertion portion along its axial distribution, first insertion portion can with the sealed cooperation of first sealing washer, second insertion portion can with form water channel between the first sealing washer. Axial displacement through the valve rod and the sealed cooperation of first sealing washer or with form water channel between the first sealing washer, can avoid valve rod axial displacement and deviate from the diaphragm subassembly, if deviate from the diaphragm subassembly during valve rod axial displacement, then the case appears becoming flexible after long-term the use, and the valve rod is difficult to the accuracy and inserts back in the pressure release hole, influences the case and uses, and the valve rod design that does not deviate from the diaphragm subassembly all the time can make the switch function of case effective for a long time, the life of extension case.

The first insertion portion is positioned above the second insertion portion in order to facilitate the insertion of the valve stem into the relief hole when the valve cartridge is assembled. When the positioning block is positioned in the shallow groove, the first insertion part is in sealing fit with the first sealing ring, and when the positioning block is positioned in the deep groove, a water passing channel is formed between the second insertion part and the first sealing ring.

In order to facilitate the processing of the valve rod, the diameter of the first insertion part is larger than that of the second insertion part, and the first insertion part and the second insertion part are in smooth transition.

As the specific design of the diaphragm assembly, the diaphragm assembly further comprises a diaphragm which can elastically deform up and down, a diaphragm seat which is clamped in the diaphragm, and a sealing cover which is arranged on the diaphragm seat, wherein the pressure relief hole is formed in the diaphragm seat, and the first sealing ring is constrained between the diaphragm seat and the sealing cover.

As the concrete design of water inlet and delivery port, the valve casing is including dismantling the last valve casing and the lower valve casing of connection, the water inlet has at least two, and follows the circumference interval distribution of lower valve casing in lower valve casing bottom, the delivery port is located on the lower valve casing perisporium.

In order to avoid blocking of the water diversion hole when impurity particles entering water from the water inlet pass through the water diversion hole, the first spring is integrally provided with a slag discharge needle inserted into the water diversion hole. When the diaphragm component elastically deforms due to pressure difference, the first spring axially moves along with the diaphragm component, so that the slag discharging needle axially and repeatedly moves in the water diversion hole to dredge the water diversion hole.

Compared with the prior art, the utility model has the advantages of: the water inlet is arranged at the bottom of the lower cavity, and the water outlet is arranged on the peripheral wall of the lower cavity, so that the opening area on the peripheral wall of the valve shell can be reduced, the valve shell has higher mechanical strength and is not easy to damage, and a better protection effect can be achieved on the inner part of the valve core, so that the service life of the valve core is prolonged; the first rotating structure and the second rotating structure jointly guide and push the rotating sleeve, so that the rotating sleeve moves axially and rotates circumferentially when the axial direction of the button moves downwards, the switching of the positioning block in the deep groove and the shallow groove is completed, the opening and closing of the press type switch valve core are realized, the distance of the button which needs to move downwards in the axial direction when the button rotates at the same angle is shorter by the rotating sleeve, the press stroke is small, and the press operation is more labor-saving.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a perspective structural view of a lower valve casing in an embodiment of the present invention;

FIG. 3 is a cross-sectional view of FIG. 1 (with the valve cartridge closed);

FIG. 4 is a cross-sectional view of FIG. 1 (with the valve cartridge open);

fig. 5 is a three-dimensional structure diagram of the upper valve casing of the present invention;

fig. 6 is a schematic structural view of the button, the rotating sleeve, the fixing sleeve and the plugging component in the embodiment of the present invention;

fig. 7 is an exploded perspective view of fig. 6.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1-7, is a preferred embodiment of the present invention.

As shown in fig. 1 to 7, the push-button switch valve core with an improved water inlet and outlet manner in this embodiment includes a valve housing 1, a plugging component 2, a spinning positioning structure, a diaphragm component 4, a first spring 61, a third spring 63, a water stop sleeve 7, and other main components.

As shown in fig. 1 and 3 to 4, the valve housing 1 includes an upper valve housing 11 and a lower valve housing 12 which are screw-coupled, and a third sealing ring 52 is provided between an inner circumferential wall of the upper valve housing 11 and an outer circumferential wall of the lower valve housing 12. As shown in fig. 2 to 3, the valve housing 1 is provided inside with an upper chamber and a lower chamber which are partitioned from each other. As shown in fig. 2, two water inlets 121 are symmetrically and spaced at the bottom of the lower valve casing 12, two water outlets 122 are circumferentially and spaced on the circumferential wall of the lower valve casing 12, and both the water inlets 121 and the water outlets 122 are communicated with the lower chamber; the design of water inlet 121 and delivery port 122 in this embodiment can reduce the opening area on the valve casing 1 perisporium, makes valve casing 1 have higher mechanical strength, is difficult to damage, can play better protection effect to the case inside to the life of extension case.

As shown in fig. 3-4, the diaphragm assembly 4 is disposed within the lower chamber. The diaphragm assembly 4 comprises a diaphragm 41, a diaphragm seat 42, a cover 43 and a first sealing ring 44. As shown in fig. 2 to 3, the diaphragm 41 is elastically deformable up and down and is sealingly engaged with the inner circumferential wall of the lower valve housing 12, the diaphragm seat 42 is engaged with the diaphragm 41, the cap 43 is disposed on the diaphragm seat 42, and the first seal ring 44 is restrained between the diaphragm seat 42 and the diaphragm 41. In the present embodiment, as shown in fig. 3-4, the area between the diaphragm 41 and the fixed sleeve 33 is the pressure chamber 13; the lower valve casing 12 is formed at the bottom thereof with a water stop ring 123 disposed below the diaphragm 41, and the water stop ring 123 divides the lower portion of the diaphragm 41 into an inlet chamber 14 having an inlet port 121 and an outlet chamber 15 having an outlet port 122. As shown in fig. 3-4, the diaphragm seat 42 is provided with a water inlet hole 421 for communicating the water inlet chamber 14 and the pressure chamber 13, and a pressure relief hole 422 for communicating the pressure chamber 13 and the water outlet chamber 15. As shown in fig. 3-4, a first spring 61 and a third spring 63 are disposed in the pressure chamber 13, wherein the first spring 61 makes the diaphragm assembly 4 have a movement tendency to deform downward against the water stop ring 123 to close the water outlet 122, and the third spring 63 makes the cover 43 have a downward movement tendency to press the first sealing ring 44. As shown in fig. 3-4, the first spring 61 may further be integrally formed with a slag discharging needle 611 inserted into the water guiding hole 421.

As shown in fig. 3-4, the axial movement of the blocking assembly 2 can open or block the pressure relief hole 422, thereby controlling the diaphragm assembly 4 to open or close the water outlet 122. As shown in fig. 3 to 4, the plugging assembly 2 includes a valve rod 21, a valve rod seat 22, a clamping member 23 and a clamping spring 24. The valve rod 21 is inserted into the first sealing ring 44 (see fig. 3-4), a first insertion portion 211 and a second insertion portion 212 (see fig. 7) are distributed at the lower portion of the valve rod 21 along the axial direction thereof, the first insertion portion 211 can be in sealing fit with the first sealing ring 44 (see fig. 3), and a water passage 8 (see fig. 4) can be formed between the second insertion portion 212 and the first sealing ring 44. As shown in fig. 7, the first insertion portion 211 is positioned above the second insertion portion 212 in order to facilitate insertion of the stem 21 into the relief hole 422 when assembling the valve cartridge. Specifically, as shown in fig. 7, the diameter of the first insertion portion 211 is larger than that of the second insertion portion 212, and the first insertion portion 211 and the second insertion portion 212 are smoothly transitioned. As shown in fig. 3-4, the valve rod seat 22 is disposed in the upper chamber, and the valve rod seat 22 is coupled to the valve rod 21 via the snap-in member 23 and the snap spring 24.

As shown in fig. 3-4, the spinning positioning assembly includes deep grooves 111 and shallow grooves 112 axially spaced on the inner peripheral wall of the upper housing 11, the push button 31, the rotating sleeve 32, the fixed sleeve 33 and the second spring 62. The button 31 is axially movably disposed in the upper chamber, and an upper end of the button 31 passes through the upper valve housing 11. The rotating sleeve 32 can drive the valve rod seat 22 to axially move, and a positioning block 321 capable of axially sliding in the deep groove 111 and the shallow groove 112 is arranged on the outer peripheral wall of the rotating sleeve 32. The retaining sleeve 33 is axially fixed in the valve housing 1. The second spring 62 is disposed between the valve rod seat 22 and the fixed sleeve 33, so that the valve rod seat 22 has an upward movement tendency to push against the rotating sleeve 32, and the positioning block 321 always has an upward movement tendency. A first rotating structure is arranged between the rotating sleeve 32 and the button 31, a second rotating structure is arranged between the rotating sleeve 32 and the fixed sleeve 33, and the combined action of the first rotating structure and the second rotating structure can convert the single axial movement of the button 31 into the axial movement and the circumferential rotation of the rotating sleeve 32 so as to switch the state that the positioning block 321 is positioned in the deep groove 111 or the shallow groove 112, thereby driving the axial movement of the plugging component 2 in the valve housing 1 and locking the axial position of the plugging component 2.

As shown in fig. 6-7, the first rotating structure includes a plurality of triangular protrusions 322 disposed at the upper end of the rotating sleeve 32 and a wavy surface 311 disposed at the lower end of the button 31 and configured to abut against the triangular protrusions 322, and the second rotating structure includes a plurality of one-way teeth 331 disposed at the upper end of the fixed sleeve 33 at intervals and configured to abut against the lower end of the positioning block 321. The bottom of the rotating sleeve 32 is provided with a plurality of spherical protrusions 323 at intervals.

In this embodiment, as shown in fig. 3-4, the fixing sleeve 33 and the upper valve housing 11 together form an upper chamber, and the fixing sleeve 33 and the lower valve housing 12 together form a lower chamber; the upper part of the valve rod 2 is provided with a third insertion part 213 (see fig. 7) penetrating the fixing sleeve 33, the fixing sleeve 33 is internally provided with a water stop sleeve 7 positioned in the lower chamber, a second sealing ring 51 is restrained between the inner wall of the fixing sleeve 33 and the outer wall of the water stop sleeve 7, and the second sealing ring 51 is in sealing fit with the third insertion part 213 (see fig. 3-4) so as to seal and separate the upper chamber and the lower chamber from each other.

The working principle of the key switch valve core with the improved water inlet and outlet mode in the embodiment is as follows: when the positioning block 321 is positioned in the shallow groove 112, as shown in fig. 3, the plugging assembly 2 is locked in the first position, at this time, the first insertion portion 211 is in sealing engagement with the first sealing ring 44 to block the pressure chamber 13 from the water outlet chamber 15, the water pressure in the pressure chamber 13 is balanced with the water inlet chamber 14, the diaphragm assembly 4 is pressed down by the elastic action of the first spring 61 to abut against the water retaining ring 123, so that the communication between the water inlet chamber 14 and the water outlet chamber 15 is blocked, and the water outlet 122 is in a closed state.

As shown in fig. 4, when the button 31 is pressed downward, the rotating sleeve 32 is axially displaced and circumferentially rotated due to the combined action of the first rotating structure and the second rotating structure, the positioning block 321 enters the next adjacent deep groove 111 from the shallow groove 112, the plugging member 2 is axially moved upward to the second position, at this time, the water passage 8 is formed between the second insertion portion 212 and the first sealing ring 44, water in the pressure chamber 13 enters the water outlet chamber 15 through the pressure relief hole 422, so that the water pressure in the pressure chamber 13 is reduced to be smaller than the water pressure in the water inlet chamber 14, the diaphragm 41 is deformed upward by the pressure difference against the elastic action of the first spring 61 to be separated from the water retaining ring 123, thereby communicating the water inlet chamber 14 and the water outlet chamber 15, and the water outlet 122 is in an open state.

It should be noted that in the description of the present embodiment, the terms "front, back", "left, right", "up, down", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description of the present invention and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (10)

1. A button switch valve core with improved water inlet and outlet modes comprises:

the valve comprises a valve shell (1), wherein an upper cavity and a lower cavity which are mutually separated are arranged in the valve shell (1);

the diaphragm assembly (4) is arranged in the lower chamber, and a water diversion hole (421) and a pressure relief hole (422) are formed in the diaphragm assembly (4);

a first spring (61) arranged in the lower chamber and used for enabling the diaphragm component (4) to have a downward moving trend;

a plugging component (2),

the spinning positioning structure is used for driving the plugging assembly (2) to axially move in the valve shell (1) and locking the axial position of the plugging assembly (2);

it is characterized in that the preparation method is characterized in that,

a water inlet (121) is formed in the bottom of the lower chamber, and a water outlet (122) is formed in the peripheral wall of the lower chamber; the axial movement of the plugging component (2) can open or plug the pressure relief hole (422), so that the diaphragm component (4) is controlled to open and close the water outlet (122).

2. The valve core of the push-button switch with the improved water inlet and outlet modes according to claim 1, characterized in that: spinning location structure includes that axial interval locates deep trouth (111) and shallow slot (112), axial displacement ground on the upper chamber interior wall locate button (31), the ability drive in the upper chamber interior rotation cover (32), the axial of shutoff subassembly (2) axial displacement are fixed in fixed cover (33) in valve casing (1), be equipped with on the periphery wall of rotation cover (32) can be in axial slip's locating piece (321) in deep trouth (111) or shallow slot (112), just spinning location structure is still including locating in the upper chamber and make locating piece (321) have second spring (62) of the motion trend of moving up all the time, rotation cover (32) with be equipped with first revolution mechanic between button (31), rotate cover (32) with be equipped with second revolution mechanic between fixed cover (33), the combined action of first revolution mechanic and second revolution mechanic can make the single axial displacement of button (31) converts into The rotating sleeve (32) moves axially and rotates circumferentially to switch the positioning block (321) to be positioned in the deep groove (111) or the shallow groove (112), so that the axial position of the plugging assembly (2) is locked.

3. The valve core of the push-button switch with the improved water inlet and outlet modes according to claim 2, characterized in that: first revolution mechanic include interval distribution in a plurality of triangle-shaped protruding (322) of rotating cover (32) upper end and locate button (31) lower extreme and be used for with wave shape face (311) that triangle-shaped protruding (322) offseted, second revolution mechanic is located for the interval fixed cover (33) upper end and be used for with a plurality of one-way tooth (331) that the lower extreme of locating piece (321) offseted.

4. The valve core of the push-button switch with the improved water inlet and outlet modes according to claim 2, characterized in that: the bottom of the rotating sleeve (32) is provided with at least one spherical bulge (323).

5. The valve core of the push-button switch with the improved water inlet and outlet modes according to claim 2, characterized in that: the plugging component (2) comprises a valve rod (21) which can axially move and is arranged in the fixed sleeve (33) in a penetrating mode, and a valve rod seat (22) which is positioned in the upper cavity and is arranged in a linkage mode with the valve rod (21), and the second spring (62) is arranged between the valve rod seat (22) and the fixed sleeve (33) to enable the valve rod seat (22) to have an upward movement trend to prop against the rotating sleeve (32).

6. The valve core of the push-button switch with the improved water inlet and outlet mode according to claim 5, characterized in that: including being located in diaphragm subassembly (4) pressure release hole (422) top or below and confession first sealing washer (44) that the lower part of valve rod (21) wore to establish, the lower part of valve rod (21) has first portion of inserting (211) and second portion of inserting (212) along its axial distribution, first portion of inserting (211) can with first sealing washer (44) seal fit, second portion of inserting (212) can with form water channel (8) between first sealing washer (44).

7. The valve core of the push-button switch with the improved water inlet and outlet mode according to claim 6, characterized in that: the first insertion portion (211) is located above the second insertion portion (212).

8. The valve core of the push-button switch with the improved water inlet and outlet mode according to claim 6, characterized in that: the diameter of the first insertion part (211) is larger than that of the second insertion part (212), and the first insertion part (211) and the second insertion part (212) are in smooth transition.

9. The valve core of the push-button switch with the improved water inlet and outlet mode according to claim 6, characterized in that: diaphragm subassembly (4) still including elastic deformation's about can diaphragm (41), joint in diaphragm seat (42) in diaphragm (41), locate closing cap (43) on diaphragm seat (42), pressure release hole (422) are located on diaphragm seat (42), first sealing washer (44) restrict in diaphragm seat (42) with between closing cap (43).

10. The valve core of the push-button switch with the improved water inlet and outlet modes according to claim 1, characterized in that: valve casing (1) is including last valve casing (11) and lower valve casing (12) that can dismantle the connection, water inlet (121) have at least two, and follow the circumference interval distribution of lower valve casing (12) in lower valve casing (12) bottom, delivery port (122) are located on lower valve casing (12) perisporium.

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