CN110848398A - An adjustable flow valve core - Google Patents

Abstract

The invention relates to an adjustable flow valve core, which comprises a valve core seat, a valve cavity is divided into an upper cavity and a lower cavity; the lower cavity is provided with a partition for dividing the lower cavity into an upper valve cavity and a lower valve cavity; The valve cavity is provided with a water inlet and a water outlet; the partition has a fixed part, a sealing part and a deformation part connecting the fixed part and the sealing part, and the sealing part is arranged corresponding to the water outlet to make the water inlet and the water outlet communicate or disconnect; the valve core seat is provided with There is an adjustment device that converts the circumferential rotation into axial motion. The top of the upper valve cavity is a deformable extrusion that divides the valve cavity into an upper cavity and a lower cavity. The extrusion is connected to the adjustment device and can be used in the adjustment device. Adjust the pressure of the upper valve cavity under the axial movement of the valve to act on the sealing part to adjust the gap between the sealing part and the water outlet. The present invention has the advantages of simple structure, no greater error in the fitting of the components due to wear of the components or dirt between the components, resulting in stuck and unable to realize the adjustable function of the flow.

Description

An adjustable flow valve core

technical field

The invention relates to an adjustable flow valve core.

Background technique

In the Chinese patent document with the authorized announcement number CN208331278U and the invention name is the adjustable flow valve core, an adjustable flow valve core structure is disclosed. And the adjustment head moves down, so as to control the distance that the leather cup can leave the drain hole, and adjust the flow. However, this structure needs to rely on the direct contact and cooperation of multiple components, which is laborious in use. If the use time is long, each component will wear out or there will be dirt between the components, resulting in a larger error in the matching of the components, and it is very easy to cause jamming. The adjustable function of the flow cannot be realized.

Therefore, there is a need for improvement in the existing adjustable flow spool.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an adjustable flow valve core with a structure different from that mentioned in the background art, so as to alleviate the problems existing in the prior art.

To achieve the above object, the present invention adopts the following technical solutions:

An adjustable flow valve core, comprising a valve core seat provided with a valve cavity, the valve cavity is divided into an upper cavity and a lower cavity; the lower cavity is provided with a partition for dividing the lower cavity into an upper valve cavity and a lower valve cavity; The lower valve cavity is provided with a water inlet and a water outlet; the partition has a fixing part, a sealing part and a deformation part connecting the fixing part and the sealing part, the fixing part is installed and connected on the lower cavity, and the sealing part is arranged corresponding to the water outlet to make the water inlet It is connected or disconnected from the water outlet; the valve core seat is provided with an adjustment device that converts circumferential rotation into axial motion, and the top of the upper valve cavity is a deformable extrusion that divides the valve cavity into an upper cavity and a lower cavity. The extrusion part is connected with the adjusting device and can adjust the pressure of the upper valve cavity under the axial movement of the adjusting device to act on the sealing part to adjust the gap between the sealing part and the water outlet.

The present invention has the advantages of simple structure, no greater error in the fitting of the components due to wear of the components or dirt between the components, resulting in stuck and unable to realize the adjustable function of the flow.

Description of drawings

FIG. 1 is a schematic diagram of the overall three-dimensional state structure of the adjustable flow valve core in the embodiment.

FIG. 2 is a schematic structural diagram of the whole disassembled state of the adjustable flow valve core in the embodiment.

FIG. 3 is a cross-sectional structural schematic diagram of the adjustable flow valve core in the embodiment.

Fig. 4 is a longitudinal cross-sectional structural schematic diagram of the adjustable flow valve core in the embodiment (the water inlet and the water outlet are connected).

FIG. 5 is a schematic cross-sectional structural diagram of the adjustable flow valve core in the embodiment (the water inlet and the water outlet are disconnected).

Reference number:

1. Body seat; 11. Step surface; 12. Blocking block.

2. Base; 21. Water inlet; 22. Water outlet.

3. Separator; 31. Fixing part; 32. Sealing part; 33. Deformation part; 34. Pressure relief hole; 35. Axial hole.

4. Extrusion; 41. Connecting part; 42. Extruding part; 43. Telescopic part.

d. Gap.

5. Adjusting part; 52. Internal thread; 53. Blocking surface; 54. Abutting surface; 55. Positioning piece; 56. Positioning convex.

6. Adjusting head; 61. External thread; 62. Resisting surface; 63. Adjusting body; 64. Extrusion column; 65. Guide groove.

7. Reinforcing block; 71. Guide block.

8. Fixtures.

91, pressing part; 92, rotating part; 93, spring; 94, control shaft.

101, balance spring; 102, upper valve chamber; 103, lower valve chamber.

Detailed ways

As shown in Figures 1 to 5, an adjustable flow valve core includes a valve core seat with a valve cavity, and the valve core seat is a split structure, including a body seat 1 and a base 2, and the lower end of the body seat 1 faces toward There are several hook buckles extending downward, and the hook buckles are equally spaced on the same circle that rotates with the central axis of the body seat 1; The base 2 is integrally formed by hooking the buckles together.

The valve cavity is divided into an upper cavity and a lower cavity; the lower cavity is provided with a partition 3 that divides the lower cavity into an upper valve cavity 102 and a lower valve cavity 103 ; the lower valve cavity 103 is provided with a water inlet 21 and a water outlet 22 . The top of the upper valve cavity 102 is deformable and is the extrusion part 4 that divides the valve cavity into an upper cavity and a lower cavity.

The separator 3 has a fixed part 31, a sealing part 32 and a deformation part 33 connecting the fixed part 31 and the sealing part 32. The fixing part 31 is installed and connected to the lower cavity, and the sealing part 32 is arranged corresponding to the water outlet 22 so that the water inlet 21 and the The water outlet 22 is connected or disconnected.

The valve core seat is provided with an adjustment device that converts the circumferential rotation into axial movement. The extrusion part 4 is connected to the adjustment device and can adjust the pressure of the upper valve cavity 102 under the axial movement of the adjustment device to act on the sealing part 32 to adjust. The gap d between the sealing portion 32 and the water outlet 22 . Therefore, the structure does not need to use the cooperation of multiple components, which avoids the wear of each component or the existence of dirt between the components in the prior art, which leads to a larger error in the cooperation of the components, which is very likely to be stuck and cannot realize the adjustable function of the flow rate. defect. Of course, it should be mentioned that only when in use, that is, when the water inlet 21 has liquid entering the lower valve cavity 103, the function of the adjusting device to adjust the flow can be realized.

In this embodiment, the adjusting device includes an adjusting member 5 and an adjusting head 6. The adjusting member 5 is installed on the valve core seat so as to be able to rotate around the central axis of the valve cavity. The adjusting member 5 is provided with an internal thread 52, and the adjusting head 6 It can be axially movably arranged in the upper cavity and is restricted from rotating in the circumferential direction. An axial guide groove 65 is provided on the adjusting member 5, and a guide block 71 is provided on the matching guide groove 65 on the reinforcing block 7 described below. After installation, the guide block 71 falls into the guide groove 65 to realize that the adjusting head 6 can only move axially and is restricted from rotating in the circumferential direction.

The adjusting head 6 is provided with an external thread 61 , and the internal thread 52 is screwed with the external thread 61 . The circumferential rotation of the adjusting member 5 makes the adjusting head 6 move along the axial direction of the valve core seat to act on the extrusion member 4 . The end where the inner thread 52 and the outer thread 61 start to be screwed together is defined as the beginning end, and the other end of the inner thread 52 and the outer thread 61 away from the beginning end is defined as the end end, and the end end of the inner thread 52 is provided with a blocking surface 53, The starting end of the external thread 61 is provided with a resisting surface 62 . When the inner thread 52 and the outer thread 61 are screwed to the blocking surface 53 against the resisting surface 62, it can prevent the thread from slipping due to the matching problem of the thread, causing 360-degree rotation or the phenomenon that the threads are biting each other, and the valve core appears from the surface. The phenomenon of malfunction is to prevent the thread from being locked by rotation and function failure, and will not cause the stroke of the rotating thread to be locked, locked, and uncomfortable, and the rotational torque of the structure is firm.

The extrusion part 4 has a connection part 41, an extrusion part 42 and a telescopic part 43 connecting the connection part 41 and the extrusion part 42. The connection part 41 is axially fixed in the valve cavity; the adjustment head 6 includes an adjustment body 63 and a self- One end of the adjusting body 63 extends downward along the axial direction of the pressing column 64 , the external thread 61 is provided on the outer peripheral surface of the regulating body 63 , and the end surface of the pressing column 64 abuts the pressing portion 42 .

The inner wall of the body seat 1 is provided with a stepped surface 11, the side wall of the adjusting member 5 is provided with a top surface 54, one end of the adjusting member 5 passes through the interior of the body seat 1 and protrudes from the body seat 1, the body seat 1 and the When the base 2 is integrally formed by hooking and engaging the buckles, the abutting surface 54 abuts on the stepped surface 11 . The adjusting member 5 passes through the inside of the body seat 1 and protrudes from the body seat 1 with a positioning piece 55 sleeved at one end, and the positioning piece 55 is provided with a positioning protrusion 56 along the radial direction, and the body seat 1 is provided with a push-up button The positioning protrusion 56 is the blocking block 12 that enables the adjusting member 5 to rotate only within a range of less than 360 degrees.

When the body seat 1 and the base 2 are integrated by hooking the buckles, the adjusting member 5, the extrusion member 4 and the partition member 3 are arranged from top to bottom in the valve cavity, and the extrusion member 4 and the partition member 3 are arranged between the There is a cylindrical fixing member 8 to form the upper valve cavity 102 , a reinforcing block 7 is arranged between the adjusting member 5 and the extruding member 4 , and the extruding member 4 and the reinforcing block 7 are made of rubber material.

When the faucet is provided with a plurality of valve cores, in order to avoid the sudden change of the water flow causing the fixing member 8 and the partition member 3 to be dislocated, a balance spring 101 for balancing the water flow is arranged between the fixing member 8 and the partition member 3. The balance spring 101 One end is sleeved on the partition member 3 , and the other end is abutted on the fixing member 8 .

The separator 3 is provided with a pressure relief hole 34 and an axial hole 35 which are both communicated with the upper valve cavity 102 and the lower valve cavity 103. The axial hole 35 is configured to close or open the axial hole 35 to communicate with the upper valve cavity 102 and the lower valve cavity 103. The switching mechanism of the lower valve chamber 103; when in use, the liquid enters the lower valve chamber 103 from the water inlet 21, and when the switching mechanism closes the axial hole 35 to connect the upper valve chamber 102 and the lower valve chamber 103, the liquid enters through the pressure relief hole 34 The upper valve chamber 102 pushes the sealing portion 32 to overcome the action of the deformed portion 33 to cut off the water inlet 21 and the water outlet 22. When the switching mechanism makes the axial hole 35 communicate with the upper valve chamber 102 and the lower valve chamber 103, the upper valve chamber 102 The same as the water pressure of the lower valve chamber 103 , the Guakou portion is reset by the action of the deformation portion 33 and leaves the water outlet 22 .

Among them, the switching mechanism can adopt the existing structure, such as the pressing member 91, the rotating member 92, the spring 93 and the control shaft 94 described in the Chinese patent document with the authorized announcement number CN208331278U and the invention name is the adjustable flow valve core The mutual installation structure of the two parts, the control shaft 94 closes or opens the axial hole 35 by pressing the pressing member 91. The drawings of this embodiment have been drawn, but the specific structure and action will not be repeated.

The above-mentioned embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent to The replacement modes are all included in the protection scope of the present invention.

Claims (10)

1. An adjustable flow valve core, comprising a valve core seat provided with a valve cavity, characterized in that the valve cavity is divided into an upper cavity and a lower cavity; The partition of the valve cavity; the lower valve cavity is provided with a water inlet and a water outlet; the partition has a fixing part, a sealing part and a deformation part connecting the fixing part and the sealing part, the fixing part is installed and connected on the lower cavity, and the sealing part corresponds to the outlet. The water port is arranged to connect or disconnect the water inlet and the water outlet; the valve core seat is provided with an adjustment device that converts circumferential rotation into axial motion, and the top of the upper valve cavity is deformable and divides the valve cavity into an upper cavity and a lower cavity. The extrusion part of the cavity is connected to the adjusting device and can adjust the pressure of the upper valve cavity under the axial movement of the adjusting device to act on the sealing part and adjust the gap between the sealing part and the water outlet. 2 . An adjustable flow valve core according to claim 1 , wherein the valve core seat is a split structure, including a body seat and a base, and the lower end of the body seat is provided with a plurality of hooks extending downward, and each hook is provided with a plurality of hooks. The buckles are distributed at equal intervals on the same circle with the central axis of the body seat as the rotation; the base is provided with buckle pulls corresponding to the hooks of the body seat, and the body seat and the base are integrated by the hooks and the buckles. 3 . The adjustable flow valve core according to claim 1 , wherein the regulating device comprises a regulating member and a regulating head, and the regulating member is rotatably installed on the valve core seat around the central axis of the valve cavity. 4 . The adjustment piece is provided with an inner thread, the adjustment head can be axially movably arranged in the upper cavity and restricted from rotating in the circumferential direction, the adjustment head is provided with an outer thread, the inner thread and the outer thread are screwed together, and the circumferential rotation of the adjustment piece makes the adjustment The head acts on the extrusion along the axial movement of the valve core seat. 4. An adjustable flow spool according to claim 3, characterized in that, one end where the inner thread and the outer thread start to be screwed together are defined as the beginning end, and the other end of the inner thread and the outer thread away from the beginning end is defined as the beginning end. For the tail end, the tail end of the internal thread is provided with a blocking surface, and the beginning end of the external thread is provided with a resisting surface. 5 . The adjustable flow valve core according to claim 3 , wherein the extrusion part has a connecting part, an extrusion part, and a telescopic part connecting the connecting part and the extrusion part, and the connecting part is fixed in the axial direction. 6 . In the valve cavity; the adjustment head includes an adjustment body and an extrusion column extending axially downward from one end of the adjustment body, the external thread is provided on the outer peripheral surface of the adjustment body, and the end surface of the extrusion column abuts against the extrusion portion. 6 . The adjustable flow valve core according to claim 2 , wherein the inner wall of the body seat is provided with a stepped surface, the side wall of the regulating member is provided with a top surface, and one end of the regulating member is formed from the body seat. 7 . When the body seat and the base are integrated by hooking and buckling the buckle position, the abutting surface abuts on the step surface. 7 . The adjustable flow valve core according to claim 6 , wherein the adjusting piece passes through the inside of the body seat and extends out of the body seat with a positioning sheet sleeved on one end, and the positioning sheet is arranged along the radial direction. 8 . There are positioning protrusions, and the body seat is provided with a blocking block for abutting against the positioning protrusions so that the adjusting member can only rotate within a range of less than 360 degrees. 8 . The adjustable flow valve core according to claim 6 , wherein when the body seat and the base are integrated by hooking and snapping, an adjusting member is arranged in the valve cavity from top to bottom to squeeze the valve. 9 . The pressing piece and the dividing piece, a cylindrical fixing piece is arranged between the pressing piece and the dividing piece to form the upper valve cavity, a reinforcing block is arranged between the adjusting piece and the pressing piece, and the pressing piece and the reinforcing piece are made of rubber material to make. 9 . An adjustable flow valve core according to claim 6 , wherein a balance spring for balancing the water flow is arranged between the fixing member and the partition member, one end of the balance spring is sleeved on the partition member, and the other end is sleeved on the partition member. 10 . Abut on the fixture. 10. The adjustable flow valve core according to any one of claims 1 to 9, wherein the partition is provided with a pressure relief hole and a shaft both communicating with the upper valve cavity and the lower valve cavity The axial hole is equipped with a switching mechanism to close or open the axial hole to communicate the upper valve cavity and the lower valve cavity; when in use, the liquid enters the lower valve cavity from the water inlet, and when the switching mechanism makes the axial hole close the upper valve When the cavity and the lower valve cavity are connected, the liquid enters the upper valve cavity through the pressure relief hole, and pushes the sealing part to overcome the action of the deformation part to cut off the water inlet and the water outlet. When the switching mechanism makes the axial hole connect the upper valve cavity and the lower valve cavity When the water pressure is the same in the upper valve cavity and the lower valve cavity, the Guakou part is reset by the action of the deformation part and leaves the water outlet.

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