CN214534640U

CN214534640U - Valve core structure

Info

Publication number: CN214534640U
Application number: CN202120577333.6U
Authority: CN
Inventors: 陈宗仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-10-29
Anticipated expiration: 2031-03-22

Abstract

The utility model discloses a the utility model provides a case structure, including case shell, swing arm, axle center rotating member, plectrum, rotation piece, mounting, case anter. The swing arm is connected with the axle center rotating part, the axle center rotating part is connected with the upper end of the valve core shell, the valve core front piece is connected with the lower end of the valve core shell, the inner side of the valve core front piece is connected with the front side of the fixing part, the rotating part is attached to the back side of the fixing part, the rotating part is connected with the shifting piece, and the shifting piece is stirred by the swing arm to drive the rotating part to do up-down left-right sliding displacement within the range of the back side of the fixing part. The shifting piece is provided with limiting tables along two sides of a shifting motion axis of the swing arm, the valve core shell is internally provided with limiting columns, the limiting columns are positioned outside the circumference of the end of the shifting piece motion axis when the rotating piece is positioned at the valve core closing position, and the limiting columns are positioned on the inner edge of the limiting tables on the side surfaces of the shifting piece motion axis when the rotating piece is positioned at the valve core opening position.

Description

Valve core structure

Technical Field

The utility model relates to a sanitary bath equipment technical field especially relates to a case structure for two accuse multipurpose taps.

Background

The water tap is a popular name of a water valve, is used for controlling the size of water flow to be switched on and off, and has the effect of saving water. The water tap has a very fast updating speed, and develops from an old cast iron process to an electroplating knob type water tap, a stainless steel single-temperature single-control water tap, a stainless steel double-temperature double-control water tap and a kitchen semi-automatic water tap. At present, more and more consumers purchase faucets, and the faucets are comprehensively considered from various aspects such as materials, functions, shapes and the like.

The valve core is a valve part used for realizing basic functions of direction control, pressure control or flow control in the water faucet and is used for controlling the on-off of a water path in the water faucet, the valve core disclosed in the prior invention patent 2020101766530 forms a loop in the water faucet but only controls one water outlet, and the scheme that one valve core provided by 2020106206554 controls two water outlets is provided, but only one water outlet can be controlled when the loop function is formed in the water faucet. In order to solve the above problems, in the patent of the double-control multipurpose water faucet with application number 202010809359.9, the valve core of the water faucet is provided with two water outlets and a cold and hot water communication loop, so that the function of 'zero cold water' can be realized. However, the third through hole, the fourth through hole, the third fan-shaped groove and the fourth arc-shaped groove of the water faucet are respectively positioned in the range of 45-degree included angles of the vertical axis or the horizontal axis, so that the positions of the hole positions in the valve cores in the same standard specification are reduced, and the flow is insufficient. The valve core volume must be increased to meet the national standard flow, which affects the popularization of the technology.

SUMMERY OF THE UTILITY MODEL

The utility model provides a case structure.

The utility model provides a following scheme:

a valve core structure comprises a valve core shell, a swing arm, an axis rotating piece, a shifting piece, a rotating piece, a fixing piece and a valve core front piece; the swing arm is connected with the axis rotating part, the axis rotating part is connected with the upper end of the valve core shell, the valve core front piece is connected with the lower end of the valve core shell, the inner side of the valve core front piece is connected with the front side of the fixing part, the rotating part is attached to the back side of the fixing part, the rotating part is connected to the shifting piece, and the shifting piece is shifted by the swing arm to drive the rotating part to slide up and down, left and right in the range of the back side of the fixing part;

the widths of the two sides of the movement axis of the shifting piece are smaller than the widths of the two ends of the movement axis;

a limiting column is arranged in the valve core shell and used for limiting the movement position of the shifting piece;

when the limiting column is positioned on the outer side of the circumference of the end of the moving shaft of the shifting piece, the fourth arc-shaped groove of the rotating piece covers the first arc-shaped groove and the second arc-shaped groove of the fixing piece so as to form a loop; when the limiting column is located on the left side of the movement axis of the shifting piece, the third fan-shaped groove of the rotating piece covers the third through hole, the first arc-shaped groove and the second arc-shaped groove so as to control the opening and closing of the cold and hot mixed water flow of the first water outlet.

Preferably: when the limiting column is located on the outer side of the circumference of the end of the shifting piece moving shaft, the fifth arc-shaped groove of the rotating piece covers the first arc-shaped groove and the second arc-shaped groove of the fixing piece to form a loop.

Preferably: when the limiting column is located on the right side of the shifting piece movement axis, the third fan-shaped groove of the rotating piece covers the fourth through hole, the first arc-shaped groove and the second arc-shaped groove to control the opening and closing of the cold and hot mixed water flow of the second water outlet.

Preferably: the plectrum along swing arm toggle motion axis both sides are provided with spacing platform, the step face of spacing platform corresponds the height of spacing post.

Preferably: the front face of the fixing piece is provided with a first through hole and a second through hole through a vertical axis of a circle center, a cross axis of the circle center is provided with a third through hole and a fourth through hole, the third through hole is positioned on the left side of the circle center, the fourth through hole is positioned on the right side of the circle center and is not intersected with each other, the first through hole is positioned above the third through hole and the fourth through hole, and the second through hole is positioned below the third through hole and the fourth through hole and is not intersected with each other; the back of the fixed piece is provided with a first arc-shaped groove communicated with the first through hole and a second arc-shaped groove communicated with the second through hole, the outer edges of the first arc-shaped groove and the second arc-shaped groove are positioned in the circumference of the coverage area of the rotating piece with any displacement, and the first arc-shaped groove and the second arc-shaped groove are positioned above and below the vertical shaft and are not intersected with each other; the third through hole and the fourth through hole are positioned on the inner sides of the first arc-shaped groove and the second arc-shaped groove.

Preferably: the rotating piece is provided with a third fan-shaped groove, and the third fan-shaped groove covers the third through hole, the first arc-shaped groove and the second arc-shaped groove when the rotating piece is attached to the back surface of the fixing piece and the circumference of one side of the near end of the third fan-shaped groove of the rotating piece is tangent to the circumference of the left side of the transverse shaft of the fixing piece; the rotating part is provided with a fourth arc-shaped groove, the rotating part is attached to the back face of the fixing part, and the fourth arc-shaped groove covers the first arc-shaped groove and the second arc-shaped groove when the circumference of one side of the far end of the third sector-shaped groove is tangent to the circumference of the lower portion of the vertical shaft of the fixing part.

Preferably: the rotating part is provided with a fifth arc-shaped groove, and the fifth arc-shaped groove covers the first arc-shaped groove and the second arc-shaped groove when the rotating part is attached to the back of the fixing part and the circumference of one side of the far end of the third sector-shaped groove is tangent to the circumference below the vertical shaft of the fixing part.

Preferably: the fourth arc-shaped groove and the fifth arc-shaped groove are positioned on two sides of the third fan-shaped groove and respectively cover the first arc-shaped groove and the second arc-shaped groove when the limiting column is positioned on the outer side of the circumference of the end of the shifting piece moving shaft.

According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:

the limiting shifting piece 10 of the limited column can only drive the axis rotating piece to rotate by 90 degrees by the swing arm in an opening or closing state to drive the shifting piece to rotate, so that the positions of the third through hole 3, the fourth through hole 4, the first arc-shaped groove 5, the second arc-shaped groove 6 and the third fan-shaped groove 7 are not limited within a range of 45 degrees from the center of a circle, and a water inlet hole position and a water outlet hole position can be designed according to actual positions. The valve core with the standard specification can reach the flow standard under the condition of increasing functions.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the faucet components;

FIG. 2 is an external view of the valve cartridge;

FIG. 3(A-1) is a schematic view of the hole site of the rotating member of the fixing member of the present invention;

FIG. 3(A-2) is another schematic view of the hole site of the rotating member of the fixing member of the present invention;

fig. 4 is a schematic view of a first structure of the pick of the present invention;

FIG. 5 is a position diagram of a spool housing limit post;

FIG. 6 is an assembly view of the valve cartridge of the present invention;

FIG. 7 is a schematic cross-sectional view of the valve core of the present invention in a closed state and communicating with the first and second water inlets;

FIG. 8 is a schematic cross-sectional view of the first water outlet opened by the valve element of the present invention;

FIG. 9 is a schematic view of the valve core opening first water outlet rotating member fixing member covering;

FIG. 10 is a schematic view of the cover of the rotating member fixing member in the closed state of the valve cartridge according to the present invention;

FIG. 11 is a schematic view of the cover of the rotating member fixing member in the open state of the valve element according to the present invention;

fig. 12 is a second structural schematic diagram of the pick of the present invention.

In the figure: 1. a first through hole; 2. a second through hole; 3. a third through hole; 4. a fourth via hole; 5. a first arc-shaped groove; 6. a second arc-shaped groove; 7. a third fan-shaped groove; 8. a fourth arc-shaped groove; 9. a fifth arc-shaped groove; 10. a shifting sheet; 11. a rotating member; 12. a fixing member; 13. swinging arms; 14. an axis rotating member; 15. a first water inlet; 16. a second water inlet; 17. a first water outlet; 18. a second water outlet; 19. a valve core housing; 20. a valve core front sheet; 21. a limiting column; 22. a right limit table; 23. a left limit table.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

Examples

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, and fig. 12, a valve core structure according to an embodiment of the present invention is shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, and fig. 12, and the structure may include:

a valve core shell 19, a swing arm 13, an axis rotating piece 14, a shifting piece 10, a rotating piece 11, a fixing piece 12 and a valve core front piece 20; the swing arm 13 is connected with the axis rotating part 14, the axis rotating part 14 is connected with the upper end of the valve core shell 19, the valve core front piece 20 is connected with the lower end of the valve core shell 19, the inner side of the valve core front piece 20 is connected with the front side of the fixed part 12, the rotating part 11 is attached to the back side of the fixed part 12, the rotating part 11 is connected to the shifting piece 10, and the shifting piece 10 is shifted by the swing arm 13 to drive the rotating part 11 to slide up and down, left and right within the range of the back side of the fixed part 12;

the widths of the two sides of the movement axis of the plectrum 10 are smaller than the widths of the two ends of the movement axis;

a limiting column 21 is arranged in the valve core shell 19, and the limiting column 21 is used for limiting the movement position of the shifting piece 10;

when the limiting column 21 is located outside the circumference of the end of the moving axis of the plectrum 10, the fourth arc-shaped groove 8 of the rotating piece 11 covers the first arc-shaped groove 5 and the second arc-shaped groove 6 of the fixing piece 12 so as to form a loop; when the limiting column 21 is located on the left side of the movement axis of the poking piece 10, the third fan-shaped groove 7 of the rotating piece 11 covers the third through hole 3, the first arc-shaped groove 5 and the second arc-shaped groove 6 so as to control the opening and closing of the cold and hot mixed water flow at the first water outlet.

When the limiting column 21 is located on the outer side of the circumference of the end of the moving shaft of the shifting piece 10, the fifth arc-shaped groove 9 of the rotating piece 11 covers the first arc-shaped groove 5 and the second arc-shaped groove 6 of the fixing piece 12 to form a loop.

When the limiting column 21 is located on the right side of the movement axis of the shifting piece 10, the third fan-shaped groove 7 of the rotating piece covers the fourth through hole 4, the first arc-shaped groove 5 and the second arc-shaped groove 6 to control the opening and closing of the cold and hot mixed water flow at the second water outlet.

The plectrum 10 is provided with spacing platform along swing arm 13 stirring motion axis both sides, the step face of spacing platform (22, 23) corresponds the height of spacing post.

The front face of the fixing part 12 is provided with a first through hole 1 and a second through hole 2 through a vertical axis of a circle center, a transverse axis of the circle center is provided with a third through hole 3 and a fourth through hole 4, the third through hole 3 is positioned on the left side of the circle center, the fourth through hole 4 is positioned on the right side of the circle center and is not intersected with each other, the first through hole 1 is positioned above the third through hole 3 and the fourth through hole 4, and the second through hole 2 is positioned below the third through hole 3 and the fourth through hole 4 and is not intersected with each other; the back of the fixed piece 12 is provided with a first arc-shaped groove 5 communicated with the first through hole 1 and a second arc-shaped groove 6 communicated with the second through hole 2, the outer edges of the first arc-shaped groove 5 and the second arc-shaped groove 6 are positioned in the circumference of the coverage range of any displacement of the rotating piece, and the first arc-shaped groove 5 and the second arc-shaped groove 6 are positioned above and below the vertical axis and are not mutually intersected; the third through hole 3 and the fourth through hole 4 are located inside the first arc-shaped groove 5 and the second arc-shaped groove 6.

The rotating piece 11 is provided with a third fan-shaped groove 7, and when the rotating piece 11 is attached to the back surface of the fixing piece 12 and the circumference of one side of the near end of the third fan-shaped groove 7 of the rotating piece 11 is tangent to the circumference of the left side of the transverse shaft of the fixing piece 12, the third fan-shaped groove 7 covers the third through hole 3, the first arc-shaped groove 5 and the second arc-shaped groove 6; rotate piece 11 and be provided with fourth arc recess 8, rotate piece 11 laminate in the fixing piece 12 back and rotate 7 distal end one side circumference of third fan-shaped recess and when fixing piece vertical axis below circumference is tangent fourth arc recess 8 covers first arc recess 5, second arc recess 6.

Rotate piece 11 and be provided with fifth arc recess 9, rotate 11 laminating mounting backs and rotate 7 distal end one side circumference of third fan-shaped recess and 12 vertical axis below circumference of mounting and when tangent fifth arc recess 9 covers first arc recess 5, second arc recess 6.

The fourth arc-shaped groove 8 and the fifth arc-shaped groove 9 are positioned on two sides of the third fan-shaped groove 7 and respectively cover the first arc-shaped groove and the second arc-shaped groove when the limiting column 21 is positioned on the outer side of the circumference of the motion shaft end of the shifting piece 10.

When the rotating piece is in the initial 'closed' position of the valve core, the limiting column is positioned outside the circumference of the end of the moving shaft of the shifting piece; when the rotating piece rotates to be in the valve core opening position, the limiting column is positioned at the inner edge of the limiting table on the side surface of the shifting piece moving axis, and the height of the limiting column corresponds to the step surface of the limiting table.

When the valve core swing arm drives the shifting piece to be in the initial closing position of the valve core, the limiting column is positioned outside the circumference of the end of the shifting piece moving shaft. The third fan-shaped groove of the rotating part is far away from the first arc-shaped groove or the second arc-shaped groove of the fixing part, and the fourth arc-shaped groove and the fifth arc-shaped groove of the rotating part cover the first arc-shaped groove and the second arc-shaped groove of the fixing part.

Rotate the swing arm clockwise at initial "closed" position and drive the plectrum rotatory 90 degrees, when spacing post is in the spacing platform in plectrum left side, rotate third fan-shaped recess and laminate third through-hole, first arc recess, the second arc recess of mounting and do about the displacement from top to bottom.

At the rotatory 90 degrees of initial "closed" position counter-clockwise turning swing arm drive plectrum, when spacing post was in the spacing platform in plectrum right side, the fourth through-hole, first arc recess, the second arc recess of rotating third fan-shaped recess laminating mounting do about displacement.

It should be understood that "horizontal axis, vertical axis, and movement axis" are virtual axes, and "open" and "closed" are relative part position movements.

Fig. 1 is a schematic view of the position of the faucet components.

Fig. 2 shows a schematic position diagram of a first through hole 1, a second through hole 2, a third through hole 3 and a fourth through hole 4 of the valve core.

Fig. 3(a-1) shows a hole position on the back surface of the fixed member 12, and fig. 3(a-2) shows a groove position on the binding surface of the rotating member 11.

Fig. 4 is a schematic view of the left and right retaining grooves of the pick 10.

Fig. 5 shows a position diagram of the position-limiting column 21 of the valve core housing 19.

Fig. 6 shows a view of the valve cartridge assembly.

As shown in the sectional view of the valve core in fig. 7, when the shifting piece 10 is in the initial "off" position of the valve core, the limiting column 21 is located outside the circumference of the moving axis end of the shifting piece 10. The valve core swing arm 13 can drive the axial rotating member 14 to bypass to the position in the "off" state, and the poking piece 10 drives the rotating member 11 to cover the fixed member 12 in the position as shown in fig. 10. The far end circumference of the third fan-shaped groove 7 of the rotating piece 11 is tangent to the circumference below the vertical shaft of the fixing piece 12, the third fan-shaped groove 7 covers the third through hole 3 and the fourth through hole 4, and the third fan-shaped groove 7 cannot cover the first arc-shaped groove 5; the fourth arc-shaped groove 8 and the fifth arc-shaped groove 9 cover the first arc-shaped groove 5 and the second arc-shaped groove 6. The cold water of the first arc-shaped groove 5 and the hot water of the second arc-shaped groove 6 are merged and communicated to form a loop.

Rotate 11 third fan-shaped recess 7 distal end circumference and the tangent with the 12 vertical axis below circumferences of mounting to the present case, third fan-shaped recess 7 covers third through hole 3, fourth through hole 4, and third fan-shaped recess 7 can not cover the situation of first arc recess 5 the utility model provides a design of another one equivalence principle: as shown in FIG. 11, the proximal circumference of the third fan-shaped groove 7 of the rotating member 11 is tangent to the circumference of the fixed member 12 below the vertical axis, the third fan-shaped groove 7 covers the second arc-shaped groove 6, and the third fan-shaped groove 7 does not cover the third through hole 3 and the fourth through hole 4. The limiting columns 21 are arranged to limit the poking piece 10 to be communicated with cold water of the first arc-shaped groove 5 and hot water of the second arc-shaped groove 6 in an opening state to be converged and communicated to form a loop.

The limiting column 21 limits the plectrum 10 to move at an angle only in an opening or closing state, so that the positions of the third through hole 3, the fourth through hole 4, the first arc-shaped groove 5, the second arc-shaped groove 6 and the third fan-shaped groove 7 are not limited within a range of forming an included angle of 45 degrees with the circle center.

In the initial "closed" position shown in fig. 8, the swing arm 13 is rotated clockwise to drive the shifting piece 10 to rotate 90 degrees, the limiting column 21 is located at the inner edge of the limiting table 23 on the left side of the shifting piece movement axis, and the height of the limiting column 21 corresponds to the step surface of the limiting table 23. As shown in FIG. 9, the third fan-shaped groove 7 of the rotating member 11 is attached to the third through hole 3 of the fixed member 12, and the first arc-shaped groove 5 and the second arc-shaped groove 6 are displaced up and down and left and right to open and close the third through hole 3. The circumference of the near end of the third fan-shaped groove 7 of the rotating piece 11 is tangent to the circumference of the left side of the cross shaft of the fixing piece 12, and the third fan-shaped groove 7 covers the third through hole 3, the first arc-shaped groove 5 and the second arc-shaped groove 6. The water of the tap water pipe is connected with a first through hole 1 of the valve core through a first water inlet 15 of the water tap, and the first through hole 1 is communicated with a first arc-shaped groove 5; hot water of the water heater is connected with the second through hole 2 of the valve core through a second water inlet 16 of the water faucet, the second through hole 2 is communicated with the second arc-shaped groove 6, the hot water is collected and changes direction through the third fan-shaped groove 7 and enters the third through hole 3, and the third through hole 3 is communicated with the first water outlet 17 of the water faucet. The cold and hot mixed water flows out of the first water outlet 17. The fourth arc-shaped groove 8 now covers the first through hole 1.

The swing arm 13 is rotated anticlockwise at the initial 'closing' position to drive the shifting piece 10 to rotate 90 degrees, and the limiting column 21 is positioned at the right side of the shifting piece movement axis and on the inner edge of the limiting table 22, the principle of opening and closing the fourth through hole 4 is the same as that of the above principle, and the description is not given.

Set up spacing platform situation along swing arm toggle motion axis both sides to this case plectrum the utility model provides a design of another equal principle: as shown in FIG. 12, the step surface of the limiting table is removed, so that the widths of the two sides of the motion axis of the poking piece 10 are smaller than those of the two ends of the motion axis, and the edge of the poking piece 10 is tangent to the limiting column 21 to control the motion position of the rotating piece 11.

It will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these designs without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The reasonable gap reserved by the tangent step and the step corresponding to the limit post is correspondingly adjusted by the technical personnel in the field. It is within the scope of the present technology to use only one groove of the fourth arcuate groove to communicate the first arcuate groove and the second arcuate groove.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A valve core structure is characterized by comprising a valve core shell, a swing arm, an axis rotating piece, a shifting piece, a rotating piece, a fixing piece and a valve core front piece; the swing arm is connected with the axis rotating part, the axis rotating part is connected with the upper end of the valve core shell, the valve core front piece is connected with the lower end of the valve core shell, the inner side of the valve core front piece is connected with the front side of the fixing part, the rotating part is attached to the back side of the fixing part, the rotating part is connected to the shifting piece, and the shifting piece is shifted by the swing arm to drive the rotating part to slide up and down, left and right in the range of the back side of the fixing part;

2. The valve core structure of claim 1, wherein when the position-limiting column is located outside the circumference of the end of the moving shaft of the shifting piece, the fifth arc-shaped groove of the rotating piece covers the first arc-shaped groove and the second arc-shaped groove of the fixed piece to form a loop.

3. The valve core structure of claim 1, wherein when the position-limiting post is located on the right side of the moving axis of the shifting piece, the third fan-shaped groove of the rotating piece covers the fourth through hole, the first arc-shaped groove and the second arc-shaped groove to control the opening and closing of the cold and hot mixed water flow of the second water outlet.

4. The valve core structure of claim 1, wherein the shifting piece is provided with a limiting table along two sides of the shifting motion axis of the swing arm, and the step surface of the limiting table corresponds to the height of the limiting column.

5. The valve core structure of claim 1, wherein the front face of the fixed member is provided with a first through hole and a second through hole through a vertical axis of a circle center, a horizontal axis through the circle center is provided with a third through hole and a fourth through hole, the third through hole is positioned on the left side of the circle center, the fourth through hole is positioned on the right side of the circle center and does not intersect with each other, the first through hole is positioned above the third through hole and the fourth through hole, and the second through hole is positioned below the third through hole and the fourth through hole and does not intersect with each other; the back of the fixed piece is provided with a first arc-shaped groove communicated with the first through hole and a second arc-shaped groove communicated with the second through hole, the outer edges of the first arc-shaped groove and the second arc-shaped groove are positioned in the circumference of the coverage area of the rotating piece with any displacement, and the first arc-shaped groove and the second arc-shaped groove are positioned above and below the vertical shaft and are not intersected with each other; the third through hole and the fourth through hole are positioned on the inner sides of the first arc-shaped groove and the second arc-shaped groove.

6. The valve core structure as claimed in claim 1, wherein the rotating member is provided with a third fan-shaped groove, the third fan-shaped groove covers the third through hole, the first arc-shaped groove and the second arc-shaped groove when the rotating member is attached to the back surface of the fixed member and the circumference of the rotating member on the side of the proximal end of the third fan-shaped groove is tangent to the circumference of the left side of the transverse shaft of the fixed member; the rotating part is provided with a fourth arc-shaped groove, the rotating part is attached to the back face of the fixing part, and the fourth arc-shaped groove covers the first arc-shaped groove and the second arc-shaped groove when the circumference of one side of the far end of the third sector-shaped groove is tangent to the circumference of the lower portion of the vertical shaft of the fixing part.

7. The valve core structure of claim 6, wherein the rotating member is provided with a fifth arc-shaped groove, the fifth arc-shaped groove covers the first arc-shaped groove and the second arc-shaped groove when the rotating member abuts against the back surface of the fixed member and the circumference of the rotating member at the distal end side of the third sector-shaped groove is tangent to the circumference of the rotating member below the vertical shaft of the fixed member.

8. The valve core structure of claim 7, wherein the fourth arc-shaped groove and the fifth arc-shaped groove are positioned on two sides of the third fan-shaped groove and respectively cover the first arc-shaped groove and the second arc-shaped groove when the limiting column is positioned outside the circumference of the end of the shifting piece moving shaft.