Water mixing valve

Abstract

The utility model provides a water mixing valve, and belongs to the technical field of valves. The water mixing valve solves the problem that when an existing water mixing valve is installed, an indicating arrow is likely to be blocked, and water temperature adjustment is inconvenient. The water mixing valve comprises a valve body, a valve element and a hand wheel cap, the valve element is installed in the valve body, the top of the valve element extends out of the valve body, the hand wheel cap is arranged at the top of the valve element in a sleeved mode and detachably connected with the valve element, scales are arranged on the outer side face of the bottom end of the hand wheel cap in the circumferential direction, and the water mixing valve further comprises a sleeve with an identification ring. Indication marks corresponding to the scales are arranged on the outer side face of the identification ring, and the sleeve is arranged at the top of the valve body in a sleeving mode and forms spline connection. The position of the indication mark on the valve body can be adjusted by arranging the indication mark on the identification ring of the sleeve, so that the indication mark can face a user under any condition, and the water temperature adjustment operation of the water mixing valve is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field relates to a water mixing valve. BACKGROUND

[0002] Water mixing valve is also called mixing valve is very common valve, it is a kind of valve that changes the position of opening and closing member to influence the proportion of two or more import flow to form a common export flow.Water mixing valve is often used to mix cold water and hot water, and the water mixing valve for mixing cold water and hot water is a three-way valve, the valve body of the three-way valve includes two water inlets, a water mixing cavity and a water outlet, cold water and hot water flow into the valve body from two water inlets and mix in the water mixing cavity, and the mixed warm water flows out of the water outlet for direct use by the user.

[0003] For example, a kind of sleeve type constant temperature water mixing valve [application number: CN201921486726.5;Grant announcement number: CN210461791U] disclosed in Chinese patent literature, including valve body, hot water connector arranged at the left side of valve body, cold water connector arranged at the right side of valve body and water outlet connector arranged at the lower side of valve body.The upper end of valve body is provided with an installation hole which is communicated with the internal space thereof, and a valve seat matched with the installation hole is arranged in the installation hole.The outer wall of the upper part of valve seat is provided with a plurality of evenly distributed teeth, and a limit tooth ring is arranged on the outer sleeve of the upper part of valve seat, the inner wall of limit tooth ring is provided with limit teeth matched with the teeth, and a limit plate is arranged on the upper end face of one side of limit tooth ring, and a limit notch is arranged on the upper surface of limit plate.A pressure seat matched with valve seat is arranged in valve seat, and the upper part of pressure seat protrudes outward from valve seat, and a hand wheel is fixedly arranged on the outer sleeve of pressure seat, and a limit clamping strip matched with limit notch is arranged on the inner circumferential surface of hand wheel.The inner wall of the upper side of hand wheel is provided with a plurality of evenly distributed first driving teeth, and the outer wall of the upper end of pressure seat is provided with second driving teeth matched with first driving teeth.A plurality of evenly distributed scales are arranged on the outer wall of the lower part of hand wheel, and an indicating arrow matched with scale is arranged on valve body.When adjusting water temperature, the limit clamping strip on hand wheel is not inserted into the limit notch of limit tooth ring, and the required water temperature scale on hand wheel is matched with the indicating arrow on valve body by rotating hand wheel.

[0004] In the above-mentioned water mixing valve, only one side of the valve body is provided with an indicating arrow, when installing the water mixing valve, if the left side is the hot water pipe and the right side is the cold water pipe, the hot water connector on the left side of the water mixing valve is connected with the hot water pipe, and the cold water connector on the right side of the water mixing valve is connected with the cold water pipe, at this time, the indicating arrow faces the user and can be observed by the user;However, the positions of the hot water pipe and the cold water pipe are not fixed, when the left side is the cold water pipe and the right side is the hot water pipe, the water mixing valve can only be installed in reverse, so that the arrow position faces the wall, resulting in that the indicating arrow cannot be observed when adjusting the water temperature, which affects the convenience of water temperature adjustment. UTILITY MODEL CONTENTS

[0005] The utility model discloses a water mixing valve, which solves the technical problem that the existing water mixing valve is inconvenient to adjust water temperature due to the shielding of the indicating arrow during installation.

[0006] The utility model discloses a water mixing valve, which solves the technical problem that the existing water mixing valve is inconvenient to adjust water temperature due to the shielding of the indicating arrow during installation.

[0007] A water mixing valve, comprising a valve body, a valve core and a hand wheel cap, the valve core is installed in the valve body and the top of the valve core extends out of the valve body, the hand wheel cap is sleeved on the top of the valve core and forms a detachable connection, a scale is arranged on the outer side of the bottom end of the hand wheel cap in a circumferential direction, characterized in that, further comprising a sleeve with an identification ring, the identification ring is located below the hand wheel cap, the outer side of the identification ring is provided with an indicating mark corresponding to the scale, and the sleeve is sleeved on the top of the valve body and forms a spline connection.

[0008] When the water mixing valve is delivered, the indicating mark is located on one side of the valve body. When the water mixing valve is installed in a user's home, if the positions of the hot water pipe and the cold water pipe cause the indicating mark to face the wall, the hand wheel cap and the sleeve can be detached before the water mixing valve is installed, the sleeve is rotated to adjust the orientation of the indicating mark, the indicating mark on the identification ring of the sleeve faces the user, then the sleeve and the hand wheel cap are reinstalled on the valve body and the valve core, and the water mixing valve is installed in the pipeline. Since the sleeve is connected to the top of the valve body through the spline connection, the sleeve can be connected to the top of the valve body after being detached and rotated. The indicating mark is arranged on the identification ring of the sleeve, so that the position of the indicating mark on the valve body can be adjusted, and the indicating mark can face the user in any case. Therefore, when the user needs to adjust the water temperature, the indicating mark and the scale can be directly observed, so that the hand wheel cap can be rotated to the water temperature scale required to be opposite to the indicating mark, and the water temperature adjustment of the water mixing valve is convenient.

[0009] In the water mixing valve, the indicating mark is a vertical bar protrudingly arranged on the outer side of the identification ring. The vertical bar is more easily observed and touched, and the water temperature adjustment of the water mixing valve is convenient.

[0010] In the water mixing valve, the identification ring is protrudingly arranged on the outer side of the sleeve. The protruding arrangement of the identification ring makes the indicating mark thereon more easily observed, and the water temperature adjustment of the water mixing valve is convenient.

[0011] In the water mixing valve, the outer side of the sleeve is provided with a protruding limiting strip above the identification ring, the bottom end of the hand wheel cap is sleeved on the outer side of the sleeve, the inner side of the bottom end of the hand wheel cap is provided with a protruding limiting block, and the limiting block can abut against the limiting strip with the rotation of the hand wheel cap.

[0012] The limiting strip and the limiting block are arranged to limit the rotating angle of the hand wheel cap, prevent the hand wheel cap from rotating excessively to affect the normal use of the water mixing valve, and facilitate the water temperature adjustment of the water mixing valve.

[0013] In the water mixing valve, the limiting block is provided with a limiting gap, and the limiting strip is capable of being embedded into the limiting gap.

[0014] When the temperature is not needed to be adjusted, the hand wheel cap can be disassembled, and then is reassembled on the top of the valve core and the limiting strip is embedded into the limiting gap, so that the hand wheel cap is locked on the valve body and cannot rotate. When the hand wheel cap is needed to be unlocked, the hand wheel cap is disassembled, and when the hand wheel cap is reassembled on the top of the valve core, the limiting strip is kept away from the limiting gap, so that the hand wheel cap can be rotated again.

[0015] In the water mixing valve, the limiting strip and the indicating mark are located at the same position in the circumference of the sleeve. In this way, the indicating mark and the limiting strip are both directed to the user, and the hand wheel cap can be locked or unlocked conveniently.

[0016] In the water mixing valve, the bottom end surface of the hand wheel cap and the top end surface of the indicating ring have a gap, and the bottom end of the limiting strip is connected to the top end surface of the indicating ring. In this way, the water temperature can be indicated by the relative position between the limiting strip and the scale, and the water temperature adjustment is convenient.

[0017] Compared with the prior art, the water mixing valve has the following advantages:

[0018] The indicating mark is arranged on the indicating ring of the sleeve, and the position of the indicating mark on the valve body can be adjusted, so that the indicating mark is directed to the user in any case. In this way, when the user needs to adjust the water temperature, the indicating mark and the scale can be directly seen, and the water temperature adjustment of the water mixing valve is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the perspective view of the water mixing valve embodiment one.

[0020] Figure 2 is the sectional view of the water mixing valve embodiment one.

[0021] Figure 3 is the perspective view of the water mixing valve embodiment one when the sleeve and the hand wheel cap are disassembled.

[0022] Figure 4 is the perspective view of the sleeve and the hand wheel cap in the water mixing valve embodiment one.

[0023] In the figure, 1, valve body; 1a, body; 1b, valve cover; 2, valve core; 2a, pressure seat; 3, sleeve; 3a, identification ring; 3b, indicating mark; 3c, limiting strip; 4, hand wheel cap; 4a, scale; 4b, limiting block; 4c, limiting notch; 5, hot water joint; 6, cold water joint; 7, water outlet joint; 8, gap. DETAILED DESCRIPTION

[0024] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0025] Example one

[0026] As shown in Figure 1 and Figure 2 , a water mixing valve comprises a valve body 1, a valve core 2, a sleeve 3 and a hand wheel cap 4. The valve body 1 comprises a main body and a valve cover 1b fixedly connected to the top end of the main body, the two sides of the main body are respectively connected with a hot water joint 5 and a cold water joint 6, and the bottom end of the main body is connected with a water outlet joint 7. A check valve and a filter screen are installed in the hot water joint 5 and the cold water joint 6. The valve core 2 is installed in the valve body 1, the top of the valve core 2 extends out of the valve body 1, and the structure of the valve core 2 can refer to the patent document with the publication number CN210461791U. The valve core 2 comprises a pressure seat 2a at the top of the valve core 2, the pressure seat 2a is inserted in the valve cover 1b and forms a threaded connection, and the pressure seat 2a can be lifted up and down along the valve cover 1b when rotating.

[0027] As shown in Figure 3 , the top end of the pressure seat 2a extends out of the valve cover 1b, an external spline is arranged on the outer side of the top end of the pressure seat 2a, the hand wheel cap 4 is sleeved on the top end of the pressure seat 2a and forms a spline connection, and the hand wheel cap 4 is fixed with the top end of the pressure seat 2a through a screw. Rotating the hand wheel cap 4 can drive the pressure seat 2a to lift up and down, thereby changing the position of the valve core 2 and changing the flow ratio of hot water and cold water to achieve the adjustment of water temperature. An external spline is arranged on the outer side of the top end of the valve cover 1b, an internal spline is arranged on the inner side of the top end of the sleeve 3, the sleeve 3 is sleeved on the outer side of the valve cover 1b, and the top end of the sleeve 3 and the top end of the valve cover 1b form a spline connection. The inner hole of the sleeve 3 is a stepped hole with a small upper part and a large lower part, the outer side of the valve cover 1b is in a stepped shape with a small upper part and a large lower part, and the step on the inner hole wall of the sleeve 3 abuts against the step on the outer side of the valve cover 1b. The outer side of the bottom end of the hand wheel cap 4 is circumferentially provided with a scale 4a, the scale 4a comprises a scale line and a gear value, or the scale 4a comprises a scale line and a temperature value. The outer side of the sleeve 3 below the hand wheel cap 4 has a protruding annular identification ring 3a, and the outer side of the identification ring 3a has an indicating mark 3b arranged correspondingly with the scale 4a. The indicating mark 3b is a vertical bar protruding on the outer side of the identification ring 3a, or the indicating mark 3b is an arrow pattern or a dot.

[0028] AsFigure 3 and Figure 4 As shown in Figs. 3 and 4, the outer side of the sleeve 3 has a protruding limiting strip 3c above the identification ring 3a, and the bottom end of the handle cap 4 is sleeved on the outer side of the sleeve 3, and the inner side of the bottom end of the handle cap 4 has a protruding limiting block 4b, the limiting strip 3c and the limiting block 4b are located on the same circumference, and the limiting block 4b can abut against the limiting strip 3c with the rotation of the handle cap 4. The limiting block 4b has a limiting gap 4c, and the limiting strip 3c can be embedded into the limiting gap 4c, and the handle cap 4 is fixed circumferentially with the sleeve 3 when the limiting strip 3c is embedded into the limiting gap 4c. The limiting strip 3c and the indication mark 3b are located at the same position in the circumferential direction of the sleeve 3, and the bottom end of the limiting strip 3c is connected with the top end surface of the identification ring 3a. As shown in Figs. 5 and 6, the bottom end surface of the handle cap 4 and the top end surface of the identification ring 3a have a gap 8 therebetween. Figure 1 and Figure 2 As shown in Figs. 5 and 6, the bottom end surface of the handle cap 4 and the top end surface of the identification ring 3a have a gap 8 therebetween.

[0029] When the water mixing valve is shipped, the indication mark 3b is located at one side of the valve body 1. When the water mixing valve is installed in the user's home, if the positions of the hot water pipe and the cold water pipe cause the indication mark 3b to face the wall, the handle cap 4 and the sleeve 3 can be disassembled before the water mixing valve is installed. When the handle cap 4 and the sleeve 3 are disassembled, the handle cap 4 is first rotated to abut the limiting block 4b against the limiting strip 3c, the position of the indication mark 3b corresponding to the scale 4a at this time is recorded, then the screw is disassembled, and then the handle cap 4 and the sleeve 3 are sequentially taken off. Then, the sleeve 3 and the handle cap 4 are rotated so that the indication mark 3b on the identification ring 3a of the sleeve 3 faces the user, and then the sleeve 3 is sleeved on the valve cover 1b, and the handle cap 4 is sleeved on the pressing seat 2a. When the sleeve 3 and the handle cap 4 are sleeved, attention should be paid to make the scale 4a recorded previously opposite to the indication mark 3b, and then the screw is screwed. After that, the water mixing valve is installed in the pipeline. The indication mark 3b is arranged on the identification ring 3a of the sleeve 3, and the position of the indication mark 3b on the valve body 1 can be adjusted so that the indication mark 3b can face the user in any case. In this way, when the user needs to adjust the water temperature, the indication mark 3b and the scale 4a can be directly seen, so that the handle cap 4 can be rotated to the required water temperature scale 4a opposite to the indication mark 3b, and the water temperature adjustment operation of the water mixing valve is convenient.

[0030] Embodiment Two

[0031] The top end of the pressing seat 2a is provided with a cylindrical head, and the handle cap 4 is provided with a cylindrical hole, the cylindrical head is inserted into the cylindrical hole, and the handle cap 4 is further threadedly connected with a radially arranged locking screw, the bottom end of the locking screw abuts against the outer side surface of the cylindrical head, and the handle cap 4 is axially fixed on the pressing seat 2a by an axially arranged fixing screw. The other structures and adjustment methods are basically the same as those of Embodiment One. When the handle cap 4 is disassembled, the locking screw and the fixing screw need to be screwed, and compared with Embodiment One, the operation is slightly more complicated.

[0032] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A water mixing valve comprising a valve body (1), a valve plug (2) and a hand wheel cap (4), the valve plug (2) is installed in the valve body (1) and the top of the valve plug (2) extends out of the valve body (1), the hand wheel cap (4) is sleeved on the top of the valve plug (2) and forms a detachable connection, the outer side of the bottom end of the hand wheel cap (4) is provided with a scale (4a) in the circumferential direction, characterized in that, The sleeve (3) has an identification ring (3a) below the hand wheel cap (4), the outer side of the identification ring (3a) has indication marks (3b) corresponding to the scale (4a), and the sleeve (3) is sleeved on the top of the valve body (1) and forms a spline connection.

2. The mixing valve of claim 1, wherein The indication marks (3b) are vertical bars protruding on the outer side of the identification ring (3a).

3. The mixing valve according to claim 1 or 2, characterized in that The identification ring (3a) is protruding on the outer side of the sleeve (3).

4. The mixing valve of claim 3, wherein The outer side of the sleeve (3) has a protruding limiting strip (3c) above the identification ring (3a), the bottom end of the hand wheel cap (4) is sleeved on the outer side of the sleeve (3), and the inner side of the bottom end of the hand wheel cap (4) has a protruding limiting block (4b), and the limiting block (4b) can abut against the limiting strip (3c) with the rotation of the hand wheel cap (4).

5. The mixing valve of claim 4, wherein The limiting block (4b) is provided with a limiting gap (4c), and the limiting strip (3c) can be embedded into the limiting gap (4c).

6. The mixing valve of claim 4, wherein The limiting strip (3c) and the indication marks (3b) have the same position in the circumferential direction of the sleeve (3).

7. The mixing valve of claim 6, wherein The bottom end of the limiting strip (3c) is connected with the top end of the identification ring (3a), and the bottom end surface of the hand wheel cap (4) and the top end surface of the identification ring (3a) have a gap (8).

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