CN-224229324-U - Valve core structure and soft water valve

CN224229324UCN 224229324 UCN224229324 UCN 224229324UCN-224229324-U

Abstract

The utility model discloses a valve core structure and a soft water valve, which comprises a pull rod, a piston body and a venturi tube, wherein the pull rod is connected with the piston body, the piston body is provided with an inner cavity, the venturi tube is arranged in the inner cavity, a first water inlet, a salt suction port and a water outlet are arranged on the piston body, the venturi tube is provided with a water inlet hole, a suction inlet and a water outlet hole, the water inlet hole is communicated with the first water inlet, the suction inlet is communicated with the salt suction port, and the water outlet hole is communicated with the water outlet. When the pull rod moves forwards and backwards, the venturi tube moves along with the piston body, when the piston body moves to a salt sucking state, the salt sucking port can suck salt water, at the moment, the salt water is sucked and mixed from the salt sucking port and the suction port in sequence, and when the piston body moves to enable the venturi tube to be separated from the salt sucking water injection nozzle, at the moment, salt sucking is stopped, and the state is switched into a water supplementing state. Through optimizing the flow path of salt water in the salt absorbing process, the unstable factors caused by the complex flow path are reduced, the valve core can rapidly and accurately adjust the salt water flow, and the stability of the performance of the water softener is improved.

Inventors

FU PING
JIN ZHONGJIE
CHEN ZHENHUA

Assignees

佛山市岩知科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250625

Claims (10)

1. A valve core structure is characterized by comprising a pull rod, a piston body and a venturi tube, wherein the pull rod is connected with the piston body, the piston body is provided with an inner cavity, the venturi tube is arranged in the inner cavity, a first water inlet, a salt suction port and a water outlet are formed in the piston body, the venturi tube is provided with a water inlet hole, a suction inlet and a water outlet hole, the water inlet hole is communicated with the first water inlet, the suction inlet is communicated with the salt suction port, and the water outlet hole is communicated with the water outlet.
2. The valve core structure according to claim 1, wherein the outer wall surface of the venturi tube is provided with a plurality of annular grooves, and first sealing elements are embedded in the annular grooves and enable the venturi tube to be in sealing fit with the inner wall of the inner cavity.
3. The valve core structure according to claim 2, wherein the venturi tube is provided with a limiting portion, the inner wall of the piston body is provided with a step surface, and the limiting portion is in abutting fit with the step surface.
4. The valve core structure according to any one of claims 1-3, wherein the pull rod is provided with a protruding block, the piston body is provided with a limiting groove, and the protruding block is clamped in the limiting groove.
5. The valve cartridge structure according to claim 3, wherein the pull rod includes a push-pull portion and an end cap portion connected, the end cap portion defines a cavity, the venturi portion is inserted into the cavity, the step faces toward the end cap portion, and the end cap portion is partially inserted into the cavity so that the end cap portion abuts against the stopper portion.
6. The valve core structure according to claim 5, wherein the piston body is provided with a second sealing element, a third sealing element and a fourth sealing element, the end cover part is provided with a fifth sealing element, the first water inlet is positioned between the fourth sealing element and the fifth sealing element, the salt absorbing port is positioned between the third sealing element and the fourth sealing element, and the water outlet is positioned between the second sealing element and the third sealing element.
7. The valve cartridge structure of claim 6, wherein the salt suction port is positioned directly opposite the suction port.
8. The valve core structure according to claim 5, wherein the end cap portion is provided with a second water inlet, and the first water inlet is located opposite to the second water inlet.
9. The valve cartridge structure of claim 5, wherein the push-pull portion is provided with a plurality of grooves.
10. A soft water valve, characterized by comprising a valve body and the valve core structure of any one of claims 1-9, wherein a salt absorbing channel and a salt absorbing water injection nozzle are arranged on the valve body, the valve core is arranged in the salt absorbing channel, and the salt absorbing water injection nozzle is communicated with the salt absorbing channel.

Description

Valve core structure and soft water valve Technical Field The utility model relates to the technical field of water treatment equipment, in particular to a valve core and a soft water valve. Background The soft water valve is a core component of the water softener, and controls the working modes of the water softener, such as running, backwashing, salt absorption regeneration, water supplementing and the like, and the switching of the working modes mainly switches the waterway to be conducted or closed by controlling the movement of the valve core. When the water softener absorbs salt for regeneration, the brine in the salt tank is required to be guided into the resin tank to regenerate the resin, so that the water softening capacity of the resin is recovered. In the salt absorption mode, the concentration of the absorbed salt water needs to be controlled, so that the salt water in the salt tank is firstly mixed with tap water, and finally guided into the resin tank. The existing soft water valve mixes water to be independent channel, and the case only controls the flow direction and the break-make of rivers, leads to the valve body inside runner design more complicated, and the degree of fit requirement between case and the mixed water channel is higher, appears inhaling salt volume too much or not enough easily, and then influences the performance of water softener. Disclosure of utility model The utility model aims to provide a valve core structure and a soft water valve, which integrate a water mixing function on a valve core. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The valve core structure comprises a pull rod, a piston body and a venturi tube, wherein the pull rod is connected with the piston body, the piston body is provided with an inner cavity, the venturi tube is arranged in the inner cavity, a first water inlet, a salt suction port and a water outlet are formed in the piston body, the venturi tube is provided with a water inlet hole, a suction inlet and a water outlet hole, the water inlet hole is communicated with the first water inlet, the suction inlet is communicated with the salt suction port, and the water outlet hole is communicated with the water outlet. In one embodiment, the outer wall surface of the venturi tube is provided with a plurality of annular grooves, and a first sealing piece is embedded in each annular groove and enables the venturi tube to be in sealing fit with the inner wall of the inner cavity. In one embodiment, the venturi tube is provided with a limiting part, the inner wall of the piston body is provided with a step surface, and the limiting part is in butt fit with the step surface. In one embodiment, the pull rod is provided with a protruding block, the piston body is provided with a limiting groove, and the protruding block is clamped in the limiting groove. In one embodiment, the pull rod includes a push-pull portion and an end cap portion connected to each other, the end cap portion is provided with a cavity, the venturi tube portion is inserted into the cavity, the step faces toward the end cap portion, and the end cap portion is partially inserted into the cavity so that the end cap portion abuts against the limiting portion. In one embodiment, the piston body is provided with a second sealing element, a third sealing element and a fourth sealing element, the end cover part is provided with a fifth sealing element, the first water inlet is positioned between the fourth sealing element and the fifth sealing element, the salt absorbing port is positioned between the third sealing element and the fourth sealing element, and the water outlet is positioned between the second sealing element and the third sealing element. In one embodiment, the salt suction port is opposite to the suction port. In one embodiment, the end cover part is provided with a second water inlet, and the first water inlet is opposite to the second water inlet. In one embodiment, the push-pull portion is provided with a plurality of grooves. The utility model also provides a soft water valve, which comprises a valve body and the valve core structure, wherein the valve body is provided with a salt suction channel and a salt suction water injection nozzle, the valve core is arranged in the salt suction channel, and the salt suction water injection nozzle is communicated with the salt suction channel. Compared with the prior art, the valve core structure has the beneficial effects that the venturi tube is arranged in the inner cavity of the piston body, the piston body is provided with the salt suction port and the water outlet, the salt suction port is communicated with the suction port, and the venturi tube moves along with the piston body when the pull rod moves forwards and backwards. When the piston body moves to the state that the channel is in the salt absorbing state, the salt absorbing port can absorb salt water, at the mome