CN211423417U - Water path control valve - Google Patents

Abstract

The utility model discloses a waterway control valve, which comprises a pilot valve and a driving mechanism, wherein the pilot valve comprises a valve seat, a valve core part arranged in the valve seat and a valve rod connected with the valve core part, and a first end of the valve rod extends out of the valve seat in a sliding way; the method is characterized in that: the drive mechanism comprises a ratchet mechanism and a handle, the ratchet mechanism is connected with the valve seat, the valve rod forms a refill of the ratchet mechanism, the ratchet mechanism is provided with a push rod capable of sliding along the axis of the valve rod relative to the valve seat, the first end of the valve rod is fixedly connected with the push rod, the handle comprises a pressing part and a peripheral wall surrounding the pressing part, the handle is covered outside the push rod, the peripheral wall is in threaded connection with the push rod, the valve rod can be driven to slide through rotation of the handle so as to control the flow of the pilot valve, and the valve rod can be driven to slide through pressing of the handle. It has the following advantages: the whole structure is simple and compact, the operation is convenient and practical, and the operation is labor-saving.

Description

Water path control valve

Technical Field

The utility model relates to a water route control valve especially relates to a can control water route switch and can control the water route control valve of flow again.

Background

The traditional pilot valve comprises a valve seat, a valve core part and a valve rod, wherein the valve core part and the valve rod are arranged in the valve seat, the first end of the valve rod slides and extends out of the valve seat, the second end of the valve rod is connected with the valve core part, and the valve core part is driven to move through sliding of the valve rod to realize switching. The traditional pilot valve can only control the switch, but can not control the flow. To solve the technical problem, chinese patent database 2008.07.09 discloses a valve device named as a pilot type output and water and flow rate regulation prevention, publication No. CN101218458A, which can easily perform output and water and flow rate regulation, and after performing flow rate regulation once, even if the water stopping operation is performed later, output water at a desired flow rate adjusted in advance when outputting water next time; the pilot-operated valve device for outputting and stopping water and regulating flow rate is composed of a main valve, a back pressure chamber, a small introducing hole, a guide water channel and a flow rate regulating mechanism, wherein the main valve moves forwards and backwards along with the forward and backward movement of the pilot valve, so that the flow rate of the main water channel is regulated. The water supply device further comprises an output and water stop switching mechanism for switching the output and water stop by moving the pilot valve back and forth between the water stop position and the water output position; the flow rate adjusting mechanism maintains the flow rate adjusting position of the pilot valve at the flow rate adjusting position adjusted last time when the output and water blocking switching mechanism performs the output water operation after the water blocking operation of the pilot valve. However, although this solution can control the water path switch and the water path flow rate adjustment, the structure is very complicated, so there is a need for further improvement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a water route control valve, it has overcome among the background art not enough that water route control valve exists.

The utility model provides an adopted technical scheme of its technical problem is:

the waterway control valve comprises a pilot valve and a driving mechanism, wherein the pilot valve comprises a valve seat, a valve core part arranged in the valve seat and a valve rod connected with the valve core part, and the first end of the valve rod extends out of the valve seat in a sliding manner; the method is characterized in that: the drive mechanism comprises a ratchet mechanism and a handle, the ratchet mechanism is connected with the valve seat, the valve rod forms a refill of the ratchet mechanism, the ratchet mechanism is provided with a push rod capable of sliding along the axis of the valve rod relative to the valve seat, the first end of the valve rod is fixedly connected with the push rod, the handle comprises a pressing part and a peripheral wall surrounding the pressing part, the handle is covered outside the push rod, the peripheral wall is in threaded connection with the push rod, the valve rod can be driven to slide through rotation of the handle so as to control the flow of the pilot valve, and the valve rod can be driven to slide through pressing of the handle.

In one embodiment: the valve seat comprises a lower shell and a body, wherein the lower shell and the body are fixedly connected together in a sealing mode and form an installation cavity; the valve core part is arranged in the installation cavity and divides the installation cavity into a main water path and a back pressure chamber through the valve core part.

In one embodiment: the valve core part comprises a supporting seat and a pilot diaphragm fixedly arranged on the supporting seat, the valve rod is connected with the supporting seat, and the second end of the valve rod extends out of the valve core part.

In one embodiment: the pilot valve also comprises a first elastic body which is sleeved with the valve rod and is propped between the valve core part and the body.

In one embodiment: the lower casing lateral wall is equipped with the water inlet way of switch-on main water route, the casing end wall still is equipped with the play water route of switch-on main water route down.

In one embodiment: the pilot valve also comprises a first elastic body which is sleeved with the valve rod and is propped between the valve core part and the body; the water guide diaphragm is provided with a water guide hole, the tail end of the first elastic body extends to form an insertion section parallel to the axis, the insertion section is inserted into the water guide hole, and a gap is formed between the inner wall of the water guide hole and the insertion section.

In one embodiment: the valve seat also comprises an upper shell, the lower shell and the body are fixedly connected together, and the upper shell covers the body and is positioned above the lower shell; the ratchet mechanism is arranged in the upper shell.

In one embodiment: the ratchet mechanism further comprises a lower ratchet wheel, an upper ratchet wheel and a second elastic body; the upper ratchet wheel is connected in the upper shell in a sliding manner, the lower ratchet wheel is connected in the upper ratchet wheel in a sliding manner, and the upper ratchet wheel is matched with the lower ratchet wheel; the push rod is connected in the upper ratchet wheel in a sliding mode, and the second elastic body is sleeved with the valve rod and abuts against the position between the lower ratchet wheel and the body.

In one embodiment: the handle and the upper ratchet wheel form a connection relationship which can rotate but can not slide relatively.

In one embodiment: the upper ratchet wheel comprises an upper sleeve, an upper ratchet wheel part is arranged at the lower end part of the upper sleeve, and the upper ratchet wheel part comprises upper ratchet teeth arranged on the lower end surface of the upper sleeve; the lower ratchet wheel comprises a lower sleeve and a lower ratchet wheel part fixedly connected to the periphery of the lower end part of the lower sleeve, and the lower ratchet wheel part comprises lower ratchets; the lower sleeve is sleeved in the upper sleeve, and the upper ratchet part is matched with the lower ratchet part.

In one embodiment: the push rod comprises a non-rotating section and a threaded section, the non-rotating section is connected in the upper sleeve in a sliding mode in a matching mode, the threaded section is located on the upper sleeve, and the peripheral wall is connected to the threaded section in a threaded mode.

In one embodiment: the push rod is provided with a stepped hole which penetrates through the upper part and the lower part and has a large upper part and a small lower part, and the stepped hole is provided with an upward stepped surface; the first end of the valve rod passes through the stepped hole from top to bottom, and a nut is additionally arranged and connected with the first end of the valve rod in a threaded manner and is supported against the stepped surface in the stepped hole.

In one embodiment: the upper ratchet wheel comprises an upper sleeve, the upper end of the upper sleeve extends out of the upper shell, and a positioning ring groove is concavely arranged on the outer wall of the upper end of the upper sleeve; the inner hole wall of the peripheral wall is provided with an upper section and a lower section, a downward step surface is formed between the upper section and the lower section, the upper section is provided with an internal thread which can be in threaded connection with a push rod, and the lower section is provided with a penetrating part which penetrates through the inside and the outside; the lower section of the peripheral wall is sleeved outside the upper sleeve, the step surface is propped against the end surface of the upper sleeve, a limiting snap spring is additionally arranged, and the limiting snap spring extends into the penetrating part and is clamped into the positioning ring groove.

Compared with the background technology, the technical scheme has the following advantages:

the driving mechanism comprises a ratchet mechanism and a handle, a valve rod forms a refill of the ratchet mechanism, a first end of the valve rod is fixedly connected with the push rod, the handle is covered outside the push rod, the peripheral wall of the handle is in threaded connection with the push rod, the valve rod can be driven to slide through rotation of the handle to control the flow of the pilot valve, and the valve rod can be driven to slide through pressing of the handle to control the switching of the pilot valve. The handle rotates to directly drive the push rod to move so as to control flow regulation, the ratchet mechanism does not rotate relative to the valve seat, the structure is simple and compact, and the valve rod can adopt a thin shaft, so that the regulation range is wide; the handle is pressed and matched with the ratchet mechanism to realize switch control, the valve rod adopts a thin shaft, the influence of water force is small during switch operation, and the switch force value is small; the whole structure is simple and compact, the operation is convenient and practical, and the operation is labor-saving.

The valve seat further comprises an upper shell, the upper shell covers the body and is located on the lower shell, and the ratchet mechanism is arranged in the upper shell, so that the valve seat is convenient to assemble and simple and compact in structure.

The handle and the upper ratchet wheel form a connection relationship which can rotate but can not slide relatively, and the operation is convenient and labor-saving.

The push rod comprises a non-rotating section and a threaded section, the non-rotating section is in adaptive sliding connection with the inside of the upper sleeve, the threaded section is located on the upper sleeve, and the peripheral wall is in threaded connection with the threaded section.

The first end of the valve rod penetrates through the stepped hole from top to bottom, the first end of the valve rod is connected with the first end of the valve rod in a threaded mode through the nut, and the nut is supported on the stepped surface in the stepped hole.

The limiting clamp spring extends into the penetrating part and is clamped into the positioning ring groove, so that the assembly is convenient, and the structure is compact.

Drawings

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

FIG. 1 is a schematic perspective view of an embodiment of a waterway control valve.

FIG. 2 is an exploded perspective view of the waterway control valve in accordance with the exemplary embodiment.

FIG. 3 is one of the schematic cross-sectional views of an embodiment of a waterway control valve, wherein arrows indicate incoming water flow.

FIG. 4 is a second schematic cross-sectional view of an embodiment of a waterway control valve, wherein arrows indicate incoming water flow.

FIG. 5 is a third schematic cross-sectional view of an embodiment of a waterway control valve, wherein arrows indicate incoming water flow.

FIG. 6 is a fourth schematic cross-sectional view of an embodiment of a waterway control valve, wherein arrows indicate the flow of inlet water.

Detailed Description

Referring to fig. 1 to 6, the waterway control valve includes a pilot valve 1 and a driving mechanism 2.

The pilot valve 1 comprises a valve seat 11, a valve core part 12 and a valve rod 13, wherein the valve core part 12 and the valve rod 13 are arranged in the valve seat 11, the first end of the valve rod 13 extends out of the valve seat 11 in a sliding mode, and the valve rod 13 is connected with the valve core part 12 so that the valve core part 12 can be controlled to move to achieve waterway switch control or waterway flow regulation control. The valve seat 11 comprises a lower shell 111, a body 112 and an upper shell 113, wherein the upper shell 113, the lower shell 111 and the body 112 are fixedly connected together, and the body 112 and the lower shell 111 are fixedly connected together in an up-and-down sealing manner and form an installation cavity; the upper housing 113 covers the body 112 and is located above the lower housing 111. The valve core part 12 is installed in the installation cavity, the installation cavity is divided into a main waterway 114 and a back pressure chamber 115 through the valve core part 12, a water inlet passage 116 communicated with the main waterway 114 is arranged on the side wall of the lower shell 111, and a water outlet passage 117 communicated with the main waterway 114 is further arranged on the end wall of the lower shell 111. The valve core part 12 comprises a support seat 121 and a pilot diaphragm 122 fixed on the support seat 121, and the valve rod 13 is connected with the support seat 121. The pilot valve 1 further includes a first elastic body 14, and the first elastic body 14 is sleeved on the valve rod 13 and abuts against between the support seat 121 and the body 112. The working principle of the pilot valve 1 can refer to the prior art. The pilot diaphragm 122 is provided with a water guide hole 1221, the end of the first elastic body 14 extends to form an insertion section 141 parallel to the axis, the insertion section 141 is inserted into the water guide hole, a gap is formed between the inner wall of the water guide hole and the insertion section 141, the second elastic body can be positioned through the insertion section, and descaling can be achieved. In this embodiment: the first end of the valve rod extends out of the body from bottom to top, extends into the upper shell and penetrates out of the top port of the upper shell, and in order to realize sealing, an upper sealing cutting sleeve 131 and a sealing ring are arranged between the valve rod and the body to realize sliding sealing in a matching manner; the second end of the valve rod extends out of the valve core part 12, and a lower sealing clamping sleeve 132 and a sealing ring are arranged between the valve rod and the valve core part to realize sliding sealing in a matching way.

The driving mechanism 2 includes a ratchet mechanism 21 and a handle 22, the ratchet mechanism 21 is, for example, an automatic ball-point pen type mechanism, the ratchet mechanism 21 is installed in the upper housing 113 of the valve seat 11, and the valve rod 13 constitutes a cartridge of the ratchet mechanism 21, i.e., the length of the valve rod 13 extending relative to the upper housing 113 can be controlled. The ratchet mechanism 21 has a push rod 211, a lower ratchet 212, an upper ratchet 213, and a second elastic body 214.

The upper ratchet wheel 213 is slidably connected in the upper shell 113, the upper ratchet wheel 213 comprises an upper sleeve, the lower end part of the upper sleeve is provided with an upper ratchet wheel part 2131, the upper ratchet wheel part comprises upper ratchets arranged on the lower end surface of the upper sleeve, the upper sleeve can be slidably connected in the upper shell 113 up and down, and the upper end part of the upper ratchet wheel 213 extends out of the upper shell 113. The lower ratchet wheel 212 is slidably connected in the upper ratchet wheel 213, the lower ratchet wheel 212 comprises a lower sleeve and a lower ratchet wheel part 2121 fixedly connected to the periphery of the lower end part of the lower sleeve, and the lower ratchet wheel part comprises lower ratchet teeth. The lower sleeve is sleeved in the upper sleeve so that the upper sleeve and the lower sleeve can slide up and down relatively, and the upper ratchet part is matched with the lower ratchet part.

The second elastic body 214 is sleeved on the valve rod 13 and abuts between the lower ratchet 212 and the body 112, specifically, the upper port of the lower sleeve of the lower ratchet 212 is closed, and the second elastic body 214 is partially located in the lower sleeve and abuts between the closed end and the body 112.

The push rod 211 comprises a non-rotating section 2111 and a threaded section 2112, the non-rotating section 2111 is adapted to be slidably connected in the upper portion of the upper sleeve of the upper ratchet wheel 213, and the threaded section 2112 is located on the upper sleeve, so that the push rod 211 can slide up and down relative to the upper ratchet wheel 213 but cannot rotate relative to the upper ratchet wheel, and the push rod 211 can slide along the axis of the valve rod 13 relative to the valve seat 11. The first end of the valve rod 13 is fixedly connected with the push rod 211, and the specific structure is as follows: the push rod 211 is provided with a stepped hole which penetrates through the upper part and the lower part and has a large upper part and a small lower part, and the stepped hole is provided with an upward stepped surface; the first end of the valve rod 13 passes through the stepped hole from top to bottom, and a nut 2113 is additionally arranged and connected with the first end of the valve rod 13 in a threaded manner, and the nut is supported against the stepped surface in the stepped hole so as to fixedly connect the valve rod 13 and the push rod 211.

The handle 22 comprises a pressing part 221 and a peripheral wall 222 surrounding the pressing part, the handle 22 is covered on the outer side of the push rod 211, and the peripheral wall 222 is screwed with a threaded section 2112 of the push rod 211; moreover, the handle 22 and the upper ratchet wheel 213 form a connection relationship that can rotate but can not slide relatively, and the specific structure is as follows: a positioning ring groove 2133 is concavely arranged on the outer wall of the upper end part of the upper sleeve of the upper ratchet wheel 213; the inner hole wall of the peripheral wall 222 has an upper section and a lower section, a downward step surface is formed between the upper section and the lower section, the upper section is provided with an internal thread capable of being in threaded connection with a push rod, and the lower section is provided with a penetrating part 2221 penetrating through the inside and the outside; the lower section of the peripheral wall is sleeved outside the upper sleeve, the step surface is propped against the end surface of the upper sleeve, a limiting snap spring 223 is additionally arranged, the limiting snap spring 223 extends into the penetrating part and is clamped into the positioning ring groove to limit the relative sliding of the two, but the two can rotate relatively.

The control method of the waterway control valve in the embodiment is as follows: referring to fig. 3, in the figure, when the water passage control valve is at the closed position and the maximum flow rate position, the handle 22 is rotated, and the peripheral wall 222 of the handle 22 is matched with the thread of the threaded section 2112 of the push rod 211 to drive the push rod 211 to move downward, so as to drive the valve core portion 12 to move downward, so as to control the water passing area of the main water passage 114, and reduce the flow rate; when the valve core part 12 moves downwards to the lowest position, the waterway control valve is in a closed position and a minimum flow position, as shown in fig. 4; similarly, referring to fig. 5 and 6, the water path control valve in fig. 5 is in the open position and the maximum flow position, and the water path control valve in fig. 6 is in the open position and the minimum flow position, so that the valve core part 12 can be driven to move up and down to realize flow regulation by rotating the handle 22, and the flow can be regulated to be small (the minimum flow is not completely closed) by moving downwards or large by moving upwards. Referring to fig. 3 and 5, or referring to fig. 4 and 6, the handle 22 is pressed, and at this time, the ratchet mechanism 21 drives the valve rod 13 (the refill "extends" and retracts ") of the ratchet mechanism 21 to move the valve rod 13 up and down, so as to drive the valve core portion 12 to move up and down to open the main waterway 114, as shown in fig. 5 and 6, or close the main waterway 114, as shown in fig. 3 and 4. Therefore, the waterway control valve of the embodiment can drive the valve rod to slide through the rotation of the handle so as to control the flow of the pilot valve and can drive the valve rod to slide through the pressing of the handle so as to control the opening and closing of the pilot valve.

In this embodiment, a rotation angle range is provided between the handle and the upper ratchet wheel, so that the minimum flow rate is not closed.

The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.

Claims (13)

1. The waterway control valve comprises a pilot valve and a driving mechanism, wherein the pilot valve comprises a valve seat, a valve core part arranged in the valve seat and a valve rod connected with the valve core part, and the first end of the valve rod extends out of the valve seat in a sliding manner; the method is characterized in that: the drive mechanism comprises a ratchet mechanism and a handle, the ratchet mechanism is connected with the valve seat, the valve rod forms a refill of the ratchet mechanism, the ratchet mechanism is provided with a push rod capable of sliding along the axis of the valve rod relative to the valve seat, the first end of the valve rod is fixedly connected with the push rod, the handle comprises a pressing part and a peripheral wall surrounding the pressing part, the handle is covered outside the push rod, the peripheral wall is in threaded connection with the push rod, the valve rod can be driven to slide through rotation of the handle so as to control the flow of the pilot valve, and the valve rod can be driven to slide through pressing of the handle.

2. The waterway control valve of claim 1, wherein: the valve seat comprises a lower shell and a body, wherein the lower shell and the body are fixedly connected together in a sealing mode and form an installation cavity; the valve core part is arranged in the installation cavity and divides the installation cavity into a main water path and a back pressure chamber through the valve core part.

3. The waterway control valve of claim 2, wherein: the valve core part comprises a supporting seat and a pilot diaphragm fixedly arranged on the supporting seat, the valve rod is connected with the supporting seat, and the second end of the valve rod extends out of the valve core part.

4. The waterway control valve of claim 2, wherein: the pilot valve also comprises a first elastic body which is sleeved with the valve rod and is propped between the valve core part and the body.

5. The waterway control valve of claim 2, wherein: the lower casing lateral wall is equipped with the water inlet way of switch-on main water route, the casing end wall still is equipped with the play water route of switch-on main water route down.

6. The waterway control valve of claim 3, wherein: the pilot valve also comprises a first elastic body which is sleeved with the valve rod and is propped between the valve core part and the body; the water guide diaphragm is provided with a water guide hole, the tail end of the first elastic body extends to form an insertion section parallel to the axis, the insertion section is inserted into the water guide hole, and a gap is formed between the inner wall of the water guide hole and the insertion section.

7. The waterway control valve of claim 2, wherein: the valve seat also comprises an upper shell, the lower shell and the body are fixedly connected together, and the upper shell covers the body and is positioned above the lower shell; the ratchet mechanism is arranged in the upper shell.

8. The waterway control valve of claim 7, wherein: the ratchet mechanism further comprises a lower ratchet wheel, an upper ratchet wheel and a second elastic body; the upper ratchet wheel is connected in the upper shell in a sliding manner, the lower ratchet wheel is connected in the upper ratchet wheel in a sliding manner, and the upper ratchet wheel is matched with the lower ratchet wheel; the push rod is connected in the upper ratchet wheel in a sliding mode, and the second elastic body is sleeved with the valve rod and abuts against the position between the lower ratchet wheel and the body.

9. The waterway control valve of claim 8, wherein: the handle and the upper ratchet wheel form a connection relationship which can rotate but can not slide relatively.

10. The waterway control valve of claim 8, wherein: the upper ratchet wheel comprises an upper sleeve, an upper ratchet wheel part is arranged at the lower end part of the upper sleeve, and the upper ratchet wheel part comprises upper ratchet teeth arranged on the lower end surface of the upper sleeve; the lower ratchet wheel comprises a lower sleeve and a lower ratchet wheel part fixedly connected to the periphery of the lower end part of the lower sleeve, and the lower ratchet wheel part comprises lower ratchets; the lower sleeve is sleeved in the upper sleeve, and the upper ratchet part is matched with the lower ratchet part.

11. The waterway control valve of claim 10, wherein: the push rod comprises a non-rotating section and a threaded section, the non-rotating section is connected in the upper sleeve in a sliding mode in a matching mode, the threaded section is located on the upper sleeve, and the peripheral wall is connected to the threaded section in a threaded mode.

12. The waterway control valve of claim 8, wherein: the push rod is provided with a stepped hole which penetrates through the upper part and the lower part and has a large upper part and a small lower part, and the stepped hole is provided with an upward stepped surface; the first end of the valve rod passes through the stepped hole from top to bottom, and a nut is additionally arranged and connected with the first end of the valve rod in a threaded manner and is supported against the stepped surface in the stepped hole.

13. The waterway control valve of claim 9, wherein: the upper ratchet wheel comprises an upper sleeve, the upper end of the upper sleeve extends out of the upper shell, and a positioning ring groove is concavely arranged on the outer wall of the upper end of the upper sleeve; the inner hole wall of the peripheral wall is provided with an upper section and a lower section, a downward step surface is formed between the upper section and the lower section, the upper section is provided with an internal thread which can be in threaded connection with a push rod, and the lower section is provided with a penetrating part which penetrates through the inside and the outside; the lower section of the peripheral wall is sleeved outside the upper sleeve, the step surface is propped against the end surface of the upper sleeve, a limiting snap spring is additionally arranged, and the limiting snap spring extends into the penetrating part and is clamped into the positioning ring groove.

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