CN213332535U

CN213332535U - Self-cleaning faucet control valve

Info

Publication number: CN213332535U
Application number: CN202021987353.2U
Authority: CN
Inventors: 程国军
Original assignee: Ningbo Haitian Chenghe Automatic Ltd
Current assignee: Ningbo Haitian Chenghe Automatic Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-06-01
Anticipated expiration: 2030-09-11

Abstract

A tap control valve capable of self cleaning comprises a valve body, a valve core and a valve rod capable of driving the valve core and partially exposed out of the valve body, wherein a water inlet is formed in the upper end of the valve body. The utility model discloses can reach the purpose at self-cleaning operation position to the axial length of big, the minor diameter section of reasonable apolegamy can also satisfy different users' demand.

Description

Self-cleaning faucet control valve

Technical Field

The utility model relates to a control valve, concretely relates to install in tap's delivery port department and can the tap control valve of self-cleaning.

Background

A conventional faucet control valve is installed in a faucet, and the control valve is opened and closed by operating a handle on the faucet. However, after the handle is repeatedly operated, various dirt or bacteria are inevitably generated on the handle, and particularly, the phenomenon is more obvious when the handle type faucet is installed in a public place, so that cleaning personnel need to clean or disinfect the faucet in time. Therefore, people design an induction type faucet, and the induction type faucet does not need to contact a handle, so that the defects of the traditional faucet can be well overcome, but an induction sensor in the induction type faucet is easy to damage, and the induction type faucet can not be normally and reliably used.

Therefore, people also design a self-cleaning type faucet control valve, for example, the control valve disclosed in the document with chinese patent publication No. CN204961877U, which comprises a valve body installed in the water outlet of the faucet, wherein an internal thread surrounding a water flow channel is formed in the water outlet of the faucet, one end of the valve body is provided with a water inlet hole, the other end of the valve body is provided with a valve rod, an external thread capable of matching with the internal thread is formed on the outer peripheral surface of one end of the valve body, and a water outlet hole is formed on the side surface of the valve body. When the valve is used, water flowing out of the water outlet hole on the outer peripheral surface of one end of the valve body can automatically wash the valve rod at the other end of the valve body, so that the purpose of self-cleaning the handle is achieved. However, since the tap water in the faucet has a certain pressure, when the tap water in the faucet flows out from the water outlet holes on the outer peripheral surface of the valve body, the tap water is jetted radially outwards due to the water pressure, then falls down due to the self-weight, water splash can be caused, the water amount is not concentrated and is disordered, and the radial jetting distance can be different due to different water pressures, obviously, the design can affect the normal water below the faucet to a certain extent, and most of the water flow does not flow down along the valve body wall, so the cleaning effect is not very ideal; secondly, if there are special persons (if the fingers are injured, etc.) that cannot contact water; or when the temperature of the use environment is low, and when the interior personnel (such as family personnel) in a specific place use the washing machine, people dislike being directly washed by water because of cold water; or when the water below the faucet can not meet the requirement of mixing sewage, the faucet can not meet the use requirements. Further improvements are desired.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a self-cleaning effectual tap control valve of ability self-cleaning.

For solving the technical problem, the utility model discloses the technical scheme who adopts does: the utility model provides a tap control valve of ability self-cleaning, including the valve body, be located the case of the valve intracavity of valve body and can drive the case and partially expose in the valve rod of valve body, open the upper end of valve body has water inlet, its characterized in that: the water faucet valve further comprises an upper valve sleeve and a lower valve sleeve which are sleeved outside the valve body, the upper valve sleeve is located above the lower valve sleeve and can be installed at a water outlet of the water faucet, a water inlet communicated with a water inlet on the valve body is formed in the top of the upper valve sleeve, the lower valve sleeve can be linked with the valve rod, the lower valve sleeve is provided with a large-diameter section located on the upper portion and a small-diameter section located on the lower portion, a radial wall is formed between the large-diameter section and the small-diameter section, a plurality of drain holes distributed at intervals along the circumferential direction are formed in the radial wall, a water outlet communicated with the valve cavity and the drain holes is formed in the wall surface of the valve body, and water in the valve cavity can fall down along the outer wall of the small-diameter section.

In the above scheme, a further improvement is that an inner sleeve sleeved outside the valve body is further arranged in the large-diameter section, the outer wall of the inner sleeve is attached to the inner wall of the large-diameter section, an inner flanging which abuts against the outer wall of the valve body and is positioned above the water outlet is arranged at the upper end opening of the inner sleeve, and the inner flanging plays a role of blocking edge to prevent water flowing out of the water outlet from seeping out of the upper end opening of the large-diameter section.

In the above refinement, it is further preferred that a plurality of support legs which can stand on the radial wall extend from the inner sleeve. The legs may stand between adjacent drainage apertures to avoid blocking the drainage apertures when the lower port at the inner end is fully seated on the radial wall.

In each of the above solutions, in order to further prevent the upper port of the large-diameter end from water seepage and affecting the touch feeling, preferably, the large-diameter section is further sleeved with an outer sleeve, the lower end of the outer sleeve extends inward in the radial direction to form an outer bottom surface connected with the outer wall of the large-diameter section, and the outer bottom surface is provided with a water falling hole.

The lower port of the outer sleeve also extends axially downwards to form a splash guard which covers the drainage hole in the outer sleeve, so that water from the drainage hole can splash outwards. The splash-proof sleeve can effectively overcome the phenomenon that water from the drain hole is splashed outwards.

In the above solutions, in order to realize the linkage of the lower valve sleeve and the valve rod, a simpler structure is that a blocking wall is arranged in the lower valve sleeve, a mounting hole which is matched with the valve rod in a non-circular shape is formed on the blocking wall, and a fastening piece which positions the lower valve sleeve on the valve rod is arranged on the valve rod below the blocking wall.

More practically, above-mentioned fastener is the special-shaped nut of threaded connection at the lower tip of valve rod, and this special-shaped nut's outer peripheral face has the external screw thread with path section inner wall threaded connection. The lower end face of the special-shaped nut can be provided with a polygonal sinking groove for inserting the sleeve so as to facilitate the force application to rotate the special-shaped nut.

In order to ensure the water yield, a water outlet passage communicated with the valve cavity is preferably arranged on the valve rod.

In order to make the outlet water more fine and smooth, in the above preferred scheme, a bubbler positioned below the valve rod is further installed in the small-diameter section.

More preferably, the outer circumferential surface of the upper valve sleeve is provided with an external thread for connecting with a water outlet of the water faucet, and the inner wall surface of the upper valve sleeve is provided with an internal thread in threaded connection with the head of the valve body, so that the assembly and the connection are convenient.

In order to prevent over-assembly, the outer peripheral surface of the valve body is also provided with a limiting blocking part positioned above the water outlet, and the limiting blocking part is propped against a shoulder in the upper valve sleeve in the state that the valve body is in threaded connection with the upper valve sleeve, so that the valve has better operation hand feeling when the control valve is opened and closed.

Compared with the prior art, because the utility model discloses set up upper and lower valve barrel, and lower valve barrel has the unequal big, the path section of external diameter, consequently the rivers that flow from the outlet can receive the blockking of big path section inside wall earlier and gather in big path section, let water pressure release, then the wash port outflow water on the radial wall flows down along path section outer wall, carries out thorough washing to the outer wall of path section, so the utility model discloses can not take place radial injection phenomenon, and can carry out self-cleaning to the outer wall of path section, can rationally match the axial length of big, path section simultaneously, if the axial length of big path section is far less than the axial length of path section, make people select the path section of easy application of force to drive the valve core, such control valve can be suitable for on public place this moment, make self-washing obtain better embodiment; when the axial length of big footpath section is equivalent with the axial length of path section, can be suitable for in non-public place to the user selects to drive the valve core with big footpath section or path section as required, with the operation requirement that satisfies different crowds, and such control valve overall structure is simple, and the equipment is convenient. And because the lower valve sleeve is additionally arranged, the lever action is realized, so that the valve rod is easier and more comfortable to rotate.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic perspective cross-sectional view of the lower valve sleeve of fig. 1;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention;

fig. 4 is a schematic perspective cross-sectional view of the lower valve sleeve of fig. 3.

Detailed Description

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

The first embodiment, as shown in fig. 1 and 2, is one of the preferred embodiments of the self-cleaning faucet control valve, which is preferably suitable for non-public use, and includes a valve body 1, a valve core 2, a valve stem 3 capable of driving the valve core, and an upper valve sleeve 4 and a lower valve sleeve 5 sleeved outside the valve body 1, wherein the valve core 2 is located in a valve cavity 11 of the valve body 1, which is prior art, and preferably adopts an upper valve plate 21 and a lower valve plate 22 which are oppositely arranged, the upper valve plate 21 is located in the valve cavity 11, and the lower valve plate 21 is connected with the valve stem 3. The upper end of the valve body 1 is provided with a water inlet 12 communicated with the valve cavity 11, the lower end of the valve body is provided with a through hole 13 for the valve rod to pass through, namely, the valve rod 3 is partially exposed out of the valve body 1, a first wear-resistant ring A1 is arranged on the contact surface between the through hole 13 and the valve rod 3, so that the valve rod 3 can rotate smoothly and is wear-resistant, and the valve rod 3 is provided with a water outlet channel 31 communicated with the valve cavity. Therefore, the lower valve plate 22 can be driven to rotate relative to the upper valve plate 21 by rotating the valve rod 3, so that the control valve is opened, and water entering from the water inlet 12 of the valve body can flow out of the water outlet channel 31 of the valve rod 3.

The upper valve sleeve 4 is sleeved outside the upper end part of the valve body 1, the upper valve sleeve 4 is used for being installed at a water outlet of the water faucet, and the top of the upper valve sleeve 4 is provided with a water inlet hole 41 communicated with the water inlet 12 on the valve body 1. In view of the convenient connection between the upper valve sleeve 4 and the faucet and the valve body 1, it is preferable that the outer peripheral surface of the upper valve sleeve 4 is provided with an external thread 42 for connecting with the water outlet of the faucet, and the inner wall surface of the upper valve sleeve 4 is provided with an internal thread 43 in threaded connection with the head of the valve body 1, that is, the upper valve sleeve 4 is in threaded connection with the water outlet of the faucet and is also in threaded connection with the valve body 1. In order to prevent water leakage at the threaded connection with the valve body 4, a second sealing ring a2 is sleeved at the water inlet 12 of the valve body 1, and the second sealing ring a2 is compressed between the upper valve sleeve 4 and the upper end face of the valve body 1.

When the upper valve sleeve 4 is screwed on the upper end of the valve body 1, in order to prevent the valve body 1 from being excessively screwed in, it is preferable that the outer peripheral surface of the valve body 1 is further provided with a limit stop part 15 located above the water outlet 14, and in a state that the valve body 1 is in threaded connection with the upper valve sleeve, the limit stop part 15 abuts against a shoulder 44 in the upper valve sleeve, that is, the limit stop part 15 is utilized to enable the valve body 1 to be just connected in place in the upper valve sleeve 4, otherwise, excessive screwing in causes excessive friction between the upper and lower valve plates, thereby affecting the operation hand feeling of the valve rod 3.

The lower valve sleeve 5 is located below the lower valve sleeve 4 and is linked with the valve rod 3, the lower valve sleeve 5 has a large diameter section 51 located at the upper part and a small diameter section 52 located at the lower part, a radial wall 53 is formed between the large diameter section and the small diameter section, a plurality of water discharge holes 531 are formed on the radial wall 53 at intervals along the circumferential direction, water discharge ports 14 communicating the valve cavity 11 and the water discharge holes 531 are formed on the wall surface of the valve body 1, in the embodiment, the water discharge ports 14 are located on the side wall of the valve body 1 below the lower valve plate 22 and are uniformly distributed along the circumferential direction at intervals, the water discharge ports 14 are lower than the top of the large diameter section 51 of the lower valve sleeve 5, the top of the large diameter section 51 is inserted into the lower port of the upper valve sleeve 4, so that, when the control valve is in an opened state, water in the valve cavity can flow out from the water discharge ports 14 and is accumulated in the large diameter section 51 after being blocked by, then flows out through the drainage holes 531 on the radial wall 53, and then flows down along the outer wall of the small-diameter section 52, so as to completely flush the outer wall of the small-diameter section 52.

In order to prevent the water from the water outlet 14 from seeping out from the contact part of the large-diameter section 51 and the upper valve sleeve 4, an inner sleeve 6 sleeved outside the valve body 1 is further arranged in the large-diameter section 51, the outer wall of the inner sleeve 6 is attached to the inner wall of the large-diameter section 51, the upper end opening of the inner sleeve 6 is provided with an inner flanging 61 which is abutted against the outer wall of the valve body 1 and is positioned above the water outlet 14, and the inner flanging 61 plays a role of blocking edge and prevents the water from the water outlet 14 from splashing upwards due to the action of water pressure. The lower port of the inner sleeve 6 can be supported on the radial wall 53, but in order to prevent the lower port of the inner sleeve 6 from blocking the water discharge holes 531, a plurality of support legs 62 capable of standing on the radial wall are further extended from the inner sleeve 6, so that the support legs 62 can stand on the radial wall 53 between the adjacent water discharge holes 531, and the purpose of blocking the water discharge holes 531 is avoided.

In order to prevent the contact feeling of the large diameter section 51 from being affected after the water seepage, it is further preferable that the large diameter section 51 is further sleeved with an outer sleeve 7, a lower end opening of the outer sleeve 7 extends inward and outwards to form an outer bottom surface 71 (in this embodiment, the outer sleeve and the lower valve sleeve are made into an integral piece) connected with the outer wall of the large diameter section 51, and a water drainage hole 72 is formed in the outer bottom surface. This ensures that the outer wall surface of the jacket 7 is dry and that the seeping water is collected on the outer bottom surface 71 and flows downwards and is still available for use. In consideration of the possibility that water from the water discharge hole 531 may splash to the outside, a splash guard 73 covering the water discharge hole 531 is further axially extended downward from the lower end opening of the outer sleeve 7.

In order to facilitate the linkage of the lower valve housing 5 and the valve stem 3, it is preferable that the lower valve housing 5 has a blocking wall 54, and in this embodiment, the blocking wall 54 and the radial wall 53 are at a same height, or at different heights (see fig. 3 and 4). The retaining wall 54 is provided with a mounting hole 541 which is non-circularly matched with the valve rod, the mounting hole 541 can be a quadrangle, a pentagon, a kidney-shaped or the like, correspondingly, the section of the corresponding section of the valve rod 3 is also in a corresponding polygon structure, and the valve rod 3 can be driven to rotate only by rotating the lower valve sleeve 5. Meanwhile, in order to integrate the lower valve sleeve 5 with the valve rod 3, a fastening member 8 for positioning the lower valve sleeve 5 on the valve rod 3 is provided on the valve rod 3 below the blocking wall 54, the fastening member 8 may be a snap spring, but preferably adopts a special-shaped nut, the special-shaped nut is screwed on the lower end part of the valve rod 3, and the outer peripheral surface of the special-shaped nut has an external thread which is screwed with the inner wall of the small diameter section 52. And in order to conveniently rotate the special-shaped nut, a polygonal sunk groove 81 for inserting the sleeve is formed in the lower end face of the special-shaped nut, and a hexagonal sunk groove is preferably adopted as the polygonal sunk groove.

In order to make the water from the water outlet channel 31 more fine and water-saving, a bubbler 9 positioned below the valve rod 3 and a positioning member 10 for limiting the bubbler 9 in the small diameter section 52 are further installed in the small diameter section 52, and the positioning member 10 is a nut and is in threaded connection with the lower port of the small diameter section 52. Of course, a collar-like structure or bubbler could be externally threaded.

When the valve is used, a hand can apply force to the small-diameter section 52, the lower valve sleeve 5 can be rotated as required, the valve rod 3 and the lower valve plate 22 are driven to rotate, the control valve is in an open state, at the moment, water in the faucet enters the valve cavity 11 from the water inlet 41 of the upper valve sleeve 4 through the water inlet 12 of the valve body, the upper valve plate 21 and the lower valve plate 22, and then the water is divided into two paths, wherein one path of water is used by a user after passing through the water outlet channel 31 on the valve rod 3, the bubbler 9 and the lower port of the lower valve sleeve 5; the other path falls into the large-diameter section 51 through the water outlet 14, falls from the water outlet 531, and flows down along the outer wall of the small-diameter section 52 to clean the operation part of the small-diameter section, so as to achieve the purpose of self-cleaning the operation part, and meanwhile, the self-cleaning water can still be used for cleaning.

In this embodiment, the axial length of the large diameter section 51 is designed to be equal to the axial length of the small diameter section 52, so that when in use, a hand can apply force to the large diameter section 51 (i.e. to the jacket), and the hand of an operator cannot be wetted by the self-cleaning water, so as to meet the requirement of the operator who is inconvenient to wet by the water; can also meet the use requirement that clean water is needed when a water boiling faucet is used.

In this embodiment, the water outlet passage 31 may not be provided in the valve stem, and the water falling from the water outlet hole 531 may satisfy the water usage of the user. Meanwhile, the first wear-resistant ring A1 is not arranged between the through hole 3 and the valve rod 3, so that the valve rod can be rotated more easily.

The second embodiment, as shown in fig. 3 and 4, is different from the first embodiment in that: the axial length of the large-diameter section 51 is far shorter than that of the small-diameter section 52, and the outer sleeve 7, the outer bottom surface 71 and the splash-proof sleeve 73 are eliminated, so that when the control valve is used, an operator cannot easily apply force to the large-diameter section 51 and is accustomed to applying force to the small-diameter section 52, and the control valve completely achieves the purposes of self-cleaning operation parts and preventing fouling.

Claims

1. The utility model provides a tap control valve of ability self-cleaning, including valve body (1), case (2) that are located valve pocket (11) of valve body and can drive the case and partially expose in valve rod (3) of valve body, open the upper end of valve body (1) has water inlet (12), its characterized in that: also comprises an upper valve sleeve (4) and a lower valve sleeve (5) which are sleeved outside the valve body (1), the upper valve sleeve (4) is positioned above the lower valve sleeve (5) and can be arranged at the water outlet of the water tap, the top of the upper valve sleeve (4) is provided with a water inlet hole (41) communicated with a water inlet (12) on the valve body (1), the lower valve sleeve (5) can be linked with the valve rod (3), the lower valve sleeve (5) has a large diameter section (51) at the upper part and a small diameter section (52) at the lower part, a radial wall (53) is formed between the large diameter section and the small diameter section, a plurality of water discharge holes (531) are arranged on the radial wall at intervals along the circumferential direction, a water outlet (14) communicated with the valve cavity (11) and the water discharge hole (531) is arranged on the wall surface of the valve body (1), in the state after the valve core is opened, water in the valve cavity (11) can fall down along the outer wall of the small-diameter section (52) from the water outlet (14) through the water discharge hole (531).

2. The faucet control valve of claim 1, wherein: an inner sleeve (6) sleeved outside the valve body (1) is further arranged in the large-diameter section (51), the outer wall of the inner sleeve (6) is attached to the inner wall of the large-diameter section (51), and an inner flanging (61) which is abutted against the outer wall of the valve body (1) and is positioned above the water outlet (14) is arranged at the upper end opening of the inner sleeve (6).

3. The faucet control valve of claim 2, wherein: a plurality of supporting feet (62) which can stand on the radial wall (53) extend out of the inner sleeve (6).

4. A faucet control valve as in claim 1, 2 or 3, wherein: an outer sleeve (7) is further sleeved outside the large-diameter section (51), an outer bottom surface (71) connected with the outer wall of the large-diameter section (51) extends inwards in the caliber direction of the lower end of the outer sleeve (7), and a water falling hole (72) is formed in the outer bottom surface.

5. The faucet control valve of claim 4, wherein: the lower port of the outer sleeve (7) also axially extends downwards to form a splash-proof sleeve (73) which covers the drain hole (531).

6. A faucet control valve as in claim 1, 2 or 3, wherein: a blocking wall (54) is arranged in the lower valve sleeve (5), a mounting hole (541) which is matched with the valve rod (3) in a non-circular shape is formed in the blocking wall (54), and a fastening piece (8) which is used for positioning the lower valve sleeve (5) on the valve rod (3) is arranged on the valve rod (3) below the blocking wall.

7. A faucet control valve as in claim 1, 2 or 3, wherein: the valve rod (3) is provided with a water outlet channel (31) communicated with the valve cavity (11).

8. The faucet control valve of claim 7, wherein: a bubbler (9) positioned below the valve rod (3) is also arranged in the small-diameter section (52).

9. A faucet control valve as in claim 1, 2 or 3, wherein: the outer peripheral surface of the upper valve sleeve (4) is provided with an external thread (42) used for being connected with a water outlet of a water faucet, and the inner wall surface of the upper valve sleeve (4) is provided with an internal thread (43) in threaded connection with the head of the valve body.

10. The faucet control valve of claim 9, wherein: the outer peripheral surface of the valve body (1) is also provided with a limit stop part (15) positioned above the water outlet (14), and the limit stop part (15) is abutted against a shoulder (44) of the upper valve sleeve (4) in the state that the valve body (1) is in threaded connection with the upper valve sleeve (4).