CN111720614A

CN111720614A - Key valve

Info

Publication number: CN111720614A
Application number: CN202010608668.XA
Authority: CN
Inventors: 何仁熙
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-09-29

Abstract

The invention discloses a key valve, which relates to the field of bathroom products and comprises a valve body, wherein a sliding rail assembly and a locking sleeve for locking the sliding rail assembly are arranged at the upper part of the valve body, a hand wheel is arranged at the top of the sliding rail assembly, a telescopic adjusting mechanism is arranged in the sliding rail assembly, a water opening and closing assembly is sleeved at the lower end of the telescopic adjusting mechanism, the water opening and closing assembly is hollow and used for placing a pressure reducing assembly, and the pressure reducing assembly is propped against the telescopic adjusting mechanism; the side wall of the lower part of the valve body is provided with a water outlet, the bottom of the valve body is provided with a water inlet, the water outlet is communicated with the water inlet, and the on-off of the communication is controlled by a water opening and closing assembly arranged at the lower part in the valve body; the water passing channel is controlled to be opened and closed by pressing the hand wheel downwards, and the opening size of the water passing channel is changed by adjusting the working stroke of the water opening and closing assembly by rotating the hand wheel, so that the flow regulation is realized. The invention solves the problem that the existing press type valve core is easy to block, and simultaneously, the flow regulating function is also added.

Description

Key valve

Technical Field

The invention relates to the technical field of bathroom products, in particular to a key valve.

Background

Among the current bathroom product, a valve for realizing water route on-off control mainly adopts two kinds of seal structure: rotary switching valves and push-rod switching valves. The two structures both belong to a rotary control valve, namely the on-off control of the valve is driven by rotating a hand wheel or a handle, the structure of the handle has the advantages of large volume, more material consumption and large operating torque, and a user is easy to slip when using the detergent and needs to design an anti-slip structure; in addition, the ceramic plates are matched to serve as a sealing mode, lubricating oil needs to be smeared on the ceramic plates, the lubricating oil is easy to run off under a water environment, once the lubricating oil runs off, the hand feeling of the ceramic plates is heavier, and the ceramic plates are abraded to enable the sealing function to be invalid and leak water.

Chinese patent 201620370370.9 (application No. 2016.04.29) discloses a press mechanical automatic switch valve core, which comprises an upper valve body and a lower valve body, a water sealing seat is arranged between the upper valve body and the lower valve body, the upper end of the water sealing seat is a necking part, and a telescopic core shell is sleeved in the inner cavity of the upper valve body and is positioned between the water sealing seat and the upper valve body. Wherein, flexible core is including flexible press the depression bar, flexible guide pole, flexible core spring and flexible supplementary magnet, and flexible press the depression bar upper end and wear out flexible core shell and go up the valve body and form press the switch.

When this press mechanical automatic switch case uses, press the press switch of upper end by the user, shift position switching structure through similar ballpoint drives flexible auxiliary magnet and reciprocates and is positioned respectively and close water position and the higher boiling water position in position, and then drives through the magnet suction of flexible auxiliary magnet and seals the water spring and seal the water micelle and reciprocate to the realization is to the on-off control in water route. This press mechanical automatic switch case controls the switch of valve through the mode of pressing, has got rid of structures such as hand wheel, has reduced the volume, and the cost is reduced has just avoided using the condition of skidding.

In recent years, similar valve cores are continuously appeared in the market, the working principle is largely the same and different, and the following is summarized: the water flow enters from the periphery of the valve and flows out from the bottom. When the water sealing colloidal particles move downwards, the pressure relief opening is blocked, the cavity at the upper part of the water sealing seat is communicated with the water inlet part through a small hole at the side of the water sealing seat, the water pressure is balanced, and the valve is in a closed state; when the water sealing colloidal particles move upwards, the pressure relief port is opened, water in the cavity at the upper part of the water sealing seat flows away rapidly, the balance is broken, the water sealing seat rises, the water inlet channel and the water outlet channel are communicated, and the valve is in an open state.

This structure has the following drawbacks:

1. the connecting small hole and the pressure relief opening are extremely small, and the diameter of the connecting small hole and the pressure relief opening is usually 0.5-1 mm, so that the connecting small hole and the pressure relief opening are extremely easy to block. The general optimization scheme is that a filter screen is added at the front end of water inlet, and a core spring is additionally arranged in a small hole, so that the scheme is effective for solid particle impurities in water, but cannot resist the formation of scale, the risk of blockage is still caused after long-term use, and the filter screen also needs to be cleaned frequently;

2. the water flow can only be controlled to be on or off, the flow cannot be adjusted, the use experience is poor, and the application range is narrow.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a key valve which solves the problem that the existing press type valve core is easy to block and is added with a flow regulating function.

The purpose of the invention is achieved by the following technical scheme: the key valve comprises a valve body, wherein a sliding rail assembly and a locking sleeve for locking the sliding rail assembly are arranged at the upper part of the valve body, a hand wheel is arranged at the top of the sliding rail assembly, a telescopic adjusting mechanism is arranged in the sliding rail assembly, a water opening and closing assembly is sleeved at the lower end of the telescopic adjusting mechanism, the water opening and closing assembly is hollow and is used for placing a pressure reducing assembly, and the pressure reducing assembly is propped against the telescopic adjusting mechanism; the side wall of the lower part of the valve body is provided with a water outlet, the bottom of the valve body is provided with a water inlet, the water outlet is communicated with the water inlet, and the on-off of the communication is controlled by a water opening and closing assembly arranged at the lower part in the valve body; the water passing channel is controlled to be opened and closed by pressing the hand wheel downwards, and the opening size of the water passing channel is changed by adjusting the working stroke of the water opening and closing assembly by rotating the hand wheel, so that the flow regulation is realized.

As a further technical scheme, the sliding rail component comprises an outer sleeve, a middle sleeve and an inner sleeve, the outer sleeve is fixedly arranged in a locking sleeve, the middle sleeve is arranged in the outer sleeve in a sliding mode, the upper end of the middle sleeve is connected with a hand wheel and is axially fixed, the upper end of the middle sleeve reciprocates up and down along the axis of the outer sleeve under the driving of the hand wheel, the inner sleeve is sleeved in the middle sleeve, reciprocates up and down along with the middle sleeve and rotates intermittently, and the inner sleeve has two far and near limiting positions.

As a further technical scheme, the telescopic adjusting mechanism consists of a positioning sleeve, an adjusting seat and an adjusting core, wherein the positioning sleeve and the middle sleeve are matched and positioned through a hexagonal shape, an internal spline is arranged on the inner wall of the adjusting seat and connected with the positioning sleeve through a tooth-shaped spline, the adjusting core is connected with the adjusting seat through a thread, a clamp spring groove used for installing a clamp spring and a tooth-shaped external spline used for matching with a hand wheel to form spline connection are arranged at the upper end of the adjusting core, a shaft shoulder is arranged at the lower end of the adjusting core, and the adjusting core is driven by the hand wheel to do rotary reciprocating motion and is limited through the clamp spring.

As a further technical scheme, the water opening and closing assembly consists of a connecting core, a sealing core, an opening and closing sealing ring and a large spring, wherein the connecting core is sleeved at the lower end of the adjusting core, and when a shaft shoulder of the adjusting core touches the upper end surface of the connecting core, the water opening and closing assembly is driven by the telescopic adjusting mechanism; the sealing core is fixedly arranged at the lower end of the connecting core and sealed by an O-shaped ring B, the tail part of the sealing core is sleeved with an opening and closing sealing ring and penetrates out of the bottom of the valve body to seal the water inlet, the large spring is arranged in a supporting cap and sleeved on the connecting core, and the supporting cap is fixedly arranged in the valve body.

As a further technical scheme, a middle spring is arranged between the adjusting core and the water opening and closing component, the middle spring is arranged on the inner wall of the connecting core and is propped against the bottom of the adjusting core, and the elasticity provided by the middle spring is smaller than that provided by the big spring.

As a further technical scheme, the pressure reducing assembly consists of a pressure reducing rod, a pressure reducing core, an O-shaped ring C and a small spring, wherein a locking cap is sleeved at the top of the pressure reducing rod and is arranged at the lower end of the adjusting core, the bottom of the pressure reducing rod penetrates out of the lower end of the sealing core and is sleeved with the pressure reducing core, and the pressure reducing core is sealed with the sealing core through the O-shaped ring C; the small spring sleeved on the pressure reducing rod is arranged in the connecting core and is propped against the locking cap.

As a further technical scheme, an O-shaped ring A is sleeved on the outer wall of the valve body and used for external sealing between the key valve and an adaptive product; a base sealing ring is arranged in the annular groove at the bottom of the valve body and is used for being matched with the partition seal between the water inlet channel and the water outlet channel of the product; the water outlet is provided with a V-shaped ring for sealing in the valve body.

The invention has the beneficial effects that:

1. the key valve has no small hole with the diameter of less than 1.5mm, has self-cleaning capability, is not influenced by impurities and water scale in water, and can be stably and reliably used for a long time;

2. the key valve has flow regulation capacity, can be used for controlling a mixed water pipeline and can also be matched in pairs for use, temperature control is realized by respectively controlling the flow of cold and hot water pipelines, and the application range of a product is greatly expanded;

3. the installation and sealing structure, the size and the positions of the water inlet and outlet channels of the key valve are the same as those of an industrial standard G1/2 ceramic chip valve, and the key valve can be directly used interchangeably;

4. the key valve can simultaneously realize the switching and the flow regulation operation by using a hand wheel (without being divided into two layers which are relatively independent inside and outside), and the hand wheel can change various shapes and sizes and is widely used for the water inlet and outlet control of single-handle single-control and double-handle double-control water nozzles and temperature control water nozzles and the water diversion control of various water nozzles.

Drawings

Fig. 1 is a cross-sectional view of the present invention.

Fig. 2 is an exploded view of the present invention.

FIG. 3 is a schematic structural diagram of the water shut-off state of the present invention.

FIG. 4 is a schematic structural diagram of the water boiling state of the present invention.

Description of reference numerals: the device comprises a hand wheel 1, a positioning sleeve 2, a clamp spring 3, a middle sleeve 4, an adjusting seat 5, a locking sleeve 6, an outer sleeve 7, an inner sleeve 8, an adjusting core 9, a locking cap 10, a valve body 11, a large spring 12, a middle spring 13, an O-shaped ring A14, a small spring 15, a connecting core 16, a supporting cap 17, an O-shaped ring B18, a V-shaped ring 19, a sealing core 20, a pressure reducing rod 21, a base sealing ring 22, an opening and closing sealing ring 23, an O-shaped ring C24, a pressure reducing core 25, a water outlet 26 and a water inlet 27.

Detailed Description

The invention will be described in detail with reference to the following figures and examples:

example (b): as shown in the attached

drawings

1 and 2, the key valve comprises a valve body 11, a sliding rail assembly and a locking sleeve 6 used for locking the sliding rail assembly are arranged at the upper part of the valve body 11, the sliding rail assembly comprises an outer sleeve 7, a middle sleeve 4 and an inner sleeve 8, the outer sleeve 7 is fixedly arranged in the valve body 11 and locked by the locking sleeve 6, the middle sleeve 4 is slidably arranged in the outer sleeve 7, the upper end of the middle sleeve 4 is connected with a hand wheel 1 and is axially fixed, the upper end of the middle sleeve 4 is driven by the hand wheel 1 to reciprocate up and down along the axis of the outer sleeve 7, the inner sleeve 8 is sleeved in the middle sleeve 4 and reciprocates up and down and rotates intermittently along with the middle sleeve 4, and the middle sleeve 4 has.

The top of the sliding rail component is fixedly provided with a hand wheel 1, a telescopic adjusting mechanism is arranged in the sliding rail component, the telescopic adjusting mechanism is composed of a positioning sleeve 2, an adjusting seat 5 and an adjusting core 9, the positioning sleeve 2 and a middle sleeve 4 are positioned in a hexagonal matching mode, an internal spline is arranged on the inner wall of the adjusting seat 5 and is connected with the positioning sleeve 2 through a tooth-shaped spline, the adjusting core 9 is connected with the adjusting seat 5 through threads, a clamp spring groove used for installing a clamp spring 3 and a tooth-shaped external spline used for matching the hand wheel 1 to form spline connection are arranged at the upper end of the adjusting core, a shaft shoulder is arranged at the lower end of the adjusting core, and the adjusting core 9 is driven by the hand wheel 1 to rotate and.

The lower end of the telescopic adjusting mechanism is sleeved with a water opening and closing assembly, the water opening and closing assembly consists of a connecting core 16, a sealing core 20, an opening and closing sealing ring 23 and a large spring 12, the connecting core 16 is sleeved at the lower end of the adjusting core 9, a middle spring 13 is arranged between the adjusting core 9 and the water opening and closing assembly, the middle spring 13 is arranged on the inner wall of the connecting core 16 and abuts against the bottom of the adjusting core 9, and the elasticity provided by the middle spring 13 is smaller than that of the large spring 12. When the shaft shoulder of the adjusting core 9 touches the upper end surface of the connecting core 16, the water opening and closing assembly is driven by the telescopic adjusting mechanism; the sealing core 20 is fixedly arranged at the lower end of the connecting core 16 and sealed by an O-shaped ring B18, the tail part of the sealing core 20 is sleeved with an opening and closing sealing ring 23 and penetrates out of the bottom of the valve body 11 to seal the water inlet 27, the large spring 12 is arranged in the supporting cap 17 and sleeved on the connecting core 16, and the supporting cap 17 is fixedly arranged in the valve body 11.

The water opening and closing component is hollow and is used for placing a pressure reducing component, and the pressure reducing component is propped against the telescopic adjusting mechanism; the pressure reducing assembly consists of a pressure reducing rod 21, a pressure reducing core 25, an O-shaped ring C24 and a small spring 15, wherein the top of the pressure reducing rod 21 is sleeved with a locking cap 10 and is arranged at the lower end of the adjusting core 9, the bottom of the pressure reducing rod 21 penetrates out of the lower end of the sealing core 20 and is sleeved with the pressure reducing core 25, and the pressure reducing core 25 is sealed with the sealing core 20 through the O-shaped ring C24; the small spring 15 sleeved on the pressure reducing rod 21 is arranged in the connecting core 16 and is pressed against the locking cap 10.

The water outlet 26 is arranged on the side wall of the lower portion of the valve body 11, the water inlet 27 is arranged at the bottom of the valve body 11, the water outlet 26 is communicated with the water inlet 27, an O-shaped ring A14 is sleeved on the outer wall of the valve body 11 and used for outer sealing between the key valve and an adaptive product, a base sealing ring is arranged in a ring groove in the bottom of the valve body 11 and used for partition sealing between a water inlet channel and a water outlet channel of the adaptive product, and a V-shaped ring 19 is arranged at the position of. The valve body 11 is controlled to be communicated by a water opening and closing component arranged at the lower part in the valve body 11; the water passing channel is controlled to be opened and closed by pressing the hand wheel 1 downwards, and the opening size of the water passing channel is changed by rotating the hand wheel 1 to adjust the working stroke of the water opening and closing assembly, so that the flow regulation is realized.

The working principle of the invention is as follows:

before use, the water is defaulted to be at a water closing position (as shown in fig. 3, a water passing channel is closed, a water inlet 27 is blocked by an opening and closing sealing ring 23), when a user presses the hand wheel 1 on the middle sleeve 4, the middle sleeve 4 drives the inner sleeve 8 to move and rotate, and the inner sleeve moves from a closing water level at a higher position to a opening water level at a lower position; meanwhile, the adjusting core 9 and the inner sleeve 8 move synchronously through the adjusting seat 5, in the process, the pressure reducing assembly is pushed firstly, water flows to the water outlet 26 through a gap between the pressure reducing core 25 and the sealing core 20 and a small hole on the sealing core 20, the internal pressure of the water inlet end is greatly reduced, the water pressure of the water inlet end and the water outlet end tends to be balanced, then a shaft shoulder on the adjusting core 9 is contacted with the upper end surface of the connecting core 16, the whole water opening and closing assembly is driven to move downwards, a water passing channel is opened (as shown in fig. 4, a water inlet 27 is opened, and the water flows to the water outlet 26 directly through the water inlet 27). When the hand wheel 1 is pressed down again, the inner sleeve 8 returns to the higher water closing level again under the action of the middle sleeve 4 and the middle spring 13 in the water opening and closing assembly, the water opening and closing assembly and the pressure reducing assembly synchronously return under the action of restoring forces of the large spring 12 and the small spring 15, and the water passing channel is closed.

When the flow needs to be regulated, the hand wheel 1 can be rotated, the hand wheel 1 is connected with the regulating core 9 through the tooth-shaped spline, the regulating core 9 is driven by the hand wheel 1 to rotate, the rotation is represented as axial displacement under the matching of the regulating seat 5, namely, the distance between the shaft shoulder of the regulating core 9 and the upper end face of the connecting core 16 is changed, the working stroke of the water opening and closing assembly is further regulated, the flow sectional area of the water channel is changed accordingly, and therefore the flow regulation is realized.

It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.

Claims

1. A key valve, characterized by: the water-saving valve comprises a valve body (11), wherein a sliding rail assembly and a locking sleeve (6) used for locking the sliding rail assembly are arranged at the upper part of the valve body (11), a hand wheel (1) is arranged at the top of the sliding rail assembly, a telescopic adjusting mechanism is arranged in the sliding rail assembly, a water opening and closing assembly is sleeved at the lower end of the telescopic adjusting mechanism, the water opening and closing assembly is hollow and used for placing a pressure reducing assembly, and the pressure reducing assembly is propped against the telescopic adjusting mechanism; a water outlet (26) is formed in the side wall of the lower part of the valve body (11), a water inlet (27) is formed in the bottom of the valve body (11), the water outlet (26) is communicated with the water inlet (27), and the on-off of the communication is controlled by a water opening and closing assembly arranged at the lower part in the valve body (11); the water passing channel is controlled to be opened and closed by pressing the hand wheel (1), and the opening size of the water passing channel is changed by rotating the hand wheel (1) to adjust the working stroke of the water opening and closing assembly, so that the flow regulation is realized.

2. The key valve of claim 1, wherein: the sliding rail component comprises an outer sleeve (7), a middle sleeve (4) and an inner sleeve (8), the outer sleeve (7) is fixedly arranged in a locking sleeve (6), the middle sleeve (4) is arranged in the outer sleeve (7) in a sliding mode, the upper end of the middle sleeve (4) is connected with a hand wheel (1) and axially fixed, the hand wheel (1) is driven to move up and down along the axis of the outer sleeve (7), the inner sleeve (8) is sleeved in the middle sleeve (4) and moves up and down and intermittently in a rotating mode along with the middle sleeve (4), and the sliding rail component is provided with far and near two limiting positions.

3. The key valve of claim 1, wherein: the telescopic adjusting mechanism is composed of a locating sleeve (2), an adjusting seat (5) and an adjusting core (9), the locating sleeve (2) and the middle sleeve (4) are located through hexagonal matching, an internal spline is arranged on the inner wall of the adjusting seat (5) and connected with the locating sleeve (2) through a tooth-shaped spline, the adjusting core (9) is connected with the adjusting seat (5) through threads, a clamp spring groove used for installing a clamp spring (3) and a tooth-shaped external spline used for matching with a hand wheel (1) to form spline connection are arranged at the upper end of the adjusting core, a shaft shoulder is arranged at the lower end of the adjusting core, and the adjusting core (9) is driven by the hand wheel (1) to perform rotary reciprocating motion and is limited through the clamp spring (3).

4. The key valve of claim 1, wherein: the water opening and closing assembly consists of a connecting core (16), a sealing core (20), an opening and closing sealing ring (23) and a large spring (12), wherein the connecting core (16) is sleeved at the lower end of the adjusting core (9), and when the shaft shoulder of the adjusting core (9) touches the upper end surface of the connecting core (16), the water opening and closing assembly is driven by the telescopic adjusting mechanism; the sealing core (20) is fixedly arranged at the lower end of the connecting core (16) and sealed by an O-shaped ring B (18), an opening-closing sealing ring (23) is sleeved at the tail of the sealing core (20) and penetrates out of the bottom of the valve body (11) to seal a water inlet (27), the large spring (12) is arranged in the supporting cap (17) and sleeved on the connecting core (16), and the supporting cap (17) is fixedly arranged in the valve body (11).

5. A key valve according to claim 3 or 4, wherein: a middle spring (13) is arranged between the adjusting core (9) and the water opening and closing component, the middle spring (13) is arranged on the inner wall of the connecting core (16) and is propped against the bottom of the adjusting core (9), and the elasticity provided by the middle spring is smaller than that of the large spring (12).

6. The key valve of claim 1, wherein: the pressure reducing assembly consists of a pressure reducing rod (21), a pressure reducing core (25), an O-shaped ring C (24) and a small spring (15), wherein the top of the pressure reducing rod (21) is sleeved with a locking cap (10) and is arranged at the lower end of the adjusting core (9), the bottom of the pressure reducing rod (21) penetrates out of the lower end of the sealing core (20) and is sleeved with the pressure reducing core (25), and the pressure reducing core (25) is sealed with the sealing core (20) through the O-shaped ring C (24); a small spring (15) sleeved on the pressure reducing rod (21) is arranged in the connecting core (16) and is propped against the locking cap (10).

7. The key valve of claim 1, wherein: an O-shaped ring A (14) is sleeved on the outer wall of the valve body (11) and used for outer sealing between the key valve and an adaptive product; a base sealing ring is arranged in the annular groove at the bottom of the valve body and is used for being matched with the partition seal between the water inlet channel and the water outlet channel of the product; a V-shaped ring (19) is arranged at the water outlet (26) and is used for sealing the inside of the valve body (11).