CN217401724U - Switch valve core with bottom inlet and side outlet - Google Patents
Switch valve core with bottom inlet and side outlet Download PDFInfo
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- CN217401724U CN217401724U CN202220201691.1U CN202220201691U CN217401724U CN 217401724 U CN217401724 U CN 217401724U CN 202220201691 U CN202220201691 U CN 202220201691U CN 217401724 U CN217401724 U CN 217401724U
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Abstract
The utility model discloses a bottom-in side-out switch valve core, which comprises a valve core shell, wherein the upper end of the valve core shell is provided with a pressing part, the lower end of the pressing part is provided with a telescopic part in a matching way, the lower end of the telescopic part is provided with a reset spring, the lower end of the valve core shell is provided with a water flow outlet, the center of the telescopic part extends downwards and is provided with a telescopic rod, and a sealing block is fixedly connected on the telescopic rod; a sealing flow guide part is fixed on the inner side of the middle part of the valve core shell, a water flow guide outlet is formed in the center of the sealing flow guide part, and the telescopic rod penetrates through the water flow guide outlet; a flow guide gap channel is arranged in the sealed flow guide part; the inner side of the lower end of the valve core shell is provided with a piston, and the middle part of the lower end of the piston is provided with a water flow guide inlet. The utility model discloses reduce the dynamics of operation, improved the travelling comfort of using, reduced holistic volume, suitable occasion is more extensive.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a technical field of water route control case, in particular to switch case of end business turn over side play.
[ background of the invention ]
A valve element is a valve part by means of which the valve body performs the basic function of direction control, pressure control or flow control by means of its movement. The prior art valve core can be mainly divided into three types according to the operation mode: the rotary valve core, the lifting valve core and the pressing valve core are different in size, the water channel can be opened or closed by adopting a control rod capable of axially moving, specifically, a plugging structure is arranged on the control rod, and the plugging structure plugs or leaves a water inlet hole of a valve shell through axial movement, so that the purpose of switching water is achieved.
However, the following disadvantages exist in both the pull-up type valve core and the push-type valve core: the blocking structure of the control rod directly blocks the water inlet of the valve shell, so that the water pressure applied to the control rod is large, and large strength is needed when a person operates the control rod by hand; when the elastic piece is adopted for the control rod to reset automatically, the elastic piece also needs to overcome the pressure action of water, so that the elastic piece is easy to have use fatigue, and the service life is influenced. The rotary valve core is provided with the extended handle outside, so that the rotary torsion during use can be reduced, but the plugging structure inside the rotary valve core is still under the action of water pressure, the borne pressure is higher, and the phenomena of abrasion and aging are easy to occur. Meanwhile, the extended handle occupies a larger space, and the limitation of the use occasion is larger.
[ Utility model ] content
In view of this, for overcoming the not enough of prior art, the utility model provides a switch case of end business turn over side play, it utilizes the sectional area to be little the telescopic link reciprocates to combine the flow difference of rivers direction import and rivers direction export, make the upper and lower both sides of piston form the pressure differential, thereby drive the piston and reciprocate, realize the opening and closing of case.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a switch valve core with a bottom inlet and a side outlet comprises a valve core shell, wherein a pressing part is arranged at the upper end of the valve core shell, a telescopic part is arranged at the lower end of the pressing part in a matched mode, a return spring is arranged at the lower end of the telescopic part, a water flow outlet is arranged at the lower end of the valve core shell, a telescopic rod extends downwards from the center of the telescopic part, and a sealing block is fixedly connected onto the telescopic rod; a sealing flow guide part is fixed on the inner side of the middle part of the valve core shell, a water flow guide outlet is formed in the center of the sealing flow guide part, the telescopic rod penetrates through the water flow guide outlet, and the sealing block abuts against the lower end of the water flow guide outlet; a flow guide gap channel is arranged in the sealed flow guide part and is communicated with the outside of the valve core shell;
the inner side of the lower end of the valve core shell is provided with a piston, the middle part of the lower end of the piston is provided with a water flow guide inlet, the lower end of the telescopic rod penetrates through the water flow guide inlet, and a gap between the water flow guide inlet and the telescopic rod is smaller than a gap between the water flow guide outlet and the telescopic rod, so that the water flow guide inlet and the water flow guide outlet form a flow difference of water flow.
Preferably, a first sealing ring is arranged on the outer side of the upper end of the piston, a second sealing ring is arranged on the bottom end face of the piston, and the water outlet is located on the valve core shell between the first sealing ring and the second sealing ring. When the piston is at a lower limit position, the water outlet is sealed by the first sealing ring and the second sealing ring, so that a closed state of the valve core is formed; when the piston is positioned at the upper limit position, the second sealing ring is separated from the inner bottom surface of the valve core shell, so that the opening state of the valve core is formed.
Furthermore, an auxiliary spring is arranged in the piston, the upper end of the auxiliary spring abuts against the sealing flow guide part, and the lower end of the auxiliary spring abuts against the piston. And the auxiliary spring is arranged, so that a cavity is formed between the piston and the sealing flow guide part, and the pressure difference between the upper side and the lower side of the piston is convenient to form.
Furthermore, the first sealing ring is a Y-shaped sealing ring, and the second sealing ring is a U-shaped sealing ring.
Furthermore, a third sealing ring is arranged on the outer circumference of the upper end of the valve core shell, and a fourth sealing ring is arranged on the end face of the lower end of the valve core shell.
Further, the third sealing ring and the fourth sealing ring are O-shaped sealing rings.
Further, the clearance between the water flow guide inlet and the telescopic rod is 0.4-0.6 times, preferably 0.5 times, the clearance between the water flow guide outlet and the telescopic rod.
The utility model discloses a theory of operation is: the pressing part, the telescopic part and the return spring form a driving mechanism capable of moving up and down, and the structure of the driving mechanism is similar to that of a pressing type ball pen (gel pen) in the prior art. The driving mechanism formed by the pressing part, the telescopic part and the reset spring drives the telescopic rod to move up and down, so that the sealing block on the telescopic rod is driven to move up and down, and the water flow guide outlet is sealed and opened. The telescopic rod is positioned at the lower limit position by pressing the pressing part, the sealing block is separated from the sealing flow guide part at the moment, the water flow guide outlet is in an open state, and water at the upper end of the piston flows to the outside of the valve core shell (namely flows out from the outlet of the valve/faucet) from the water flow guide outlet and the flow guide gap channel. Meanwhile, water in the pipeline also flows in from the water flow guide inlet to fill the cavity at the upper end of the piston, but because the gap between the water flow guide inlet and the telescopic rod is smaller than the gap between the water flow guide outlet and the telescopic rod, the water filled in the cavity is not as much as the water flowing out, so that negative pressure is formed at the upper end of the piston, and the water in the pipeline pushes the piston upwards, namely the valve core is in an open state.
When the pressing part is pressed again, the telescopic rod drives the sealing block to move upwards, the sealing block abuts against the sealing flow guide part at the moment, the water flow guide outlet is in a closed state, the pressure of the upper end of the piston is increased due to the inertia effect of water flow, the sectional area of the upper end of the piston is larger than that of the lower end of the piston, pressure difference is formed, the piston is pushed downwards, and the valve core is closed. Meanwhile, due to the dead weight of the piston and the action of the auxiliary spring, the piston can also move downwards, so that the sealing (closing) of the valve core is further ensured, and the opening and the closing of the valve core are also realized.
The utility model has the advantages that: (1) the water pressure applied to the telescopic rod is smaller, so that the operating force can be reduced, and the use comfort is improved; (2) because the valve core is in a pressing type, the operation stroke is reduced, and an overlong handle is not needed, so that the integral volume is reduced, the application occasion is wider, and the application market is wider; (3) in the pressing process, the acting force on the telescopic rod and the sealing block is small, so that the use strength can be reduced, the service life of the valve core is prolonged, the strength requirement of each structural part is reduced, and the production cost is reduced.
[ description of the drawings ]
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 structural view of the present invention;
FIG. 2 is a schematic structural view of the valve element and the valve body of the present invention assembled together;
FIG. 3 is a schematic view of a portion of the enlarged structure at A in FIG. 1;
fig. 4 is a partially enlarged structural diagram of a portion B in fig. 1.
In the figure, 01, a valve core shell, 02, a pressing part, 03, a telescopic part, 04, a return spring, 05, a water flow outlet, 06, a telescopic rod, 07, a sealing block, 08, a sealing flow guide part, 09, a water flow guide outlet, 10, a flow guide gap channel, 11, a piston, 12, a water flow guide inlet, 13, a first sealing ring, 14, a second sealing ring, 15, an auxiliary spring, 16, a valve body, 17, a third sealing ring, 18 and a fourth sealing ring.
[ detailed description ] A
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 without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, a bottom-in side-out switch valve core comprises a valve core shell 01, wherein a pressing part 02 is arranged at the upper end of the valve core shell 01, a telescopic part 03 is arranged at the lower end of the pressing part 02 in a matching manner, a return spring 04 is arranged at the lower end of the telescopic part 03, a water outlet 05 is arranged at the lower end of the valve core shell 01, a telescopic rod 06 extends downwards from the center of the telescopic part 03, and a sealing block 07 is fixedly connected to the telescopic rod 06; a sealing flow guide part 08 is fixed on the inner side of the middle part of the valve core shell 01, a water flow guide outlet 09 is formed in the center of the sealing flow guide part 08, the telescopic rod 06 penetrates through the water flow guide outlet 09, and the sealing block 07 abuts against the lower end of the water flow guide outlet 09; the inside of the sealed flow guiding part 08 is provided with a flow guiding gap channel 10, and the water flow guiding outlet 09 is communicated with the outside of the valve core shell 01 through the flow guiding gap channel 10.
A piston 11 is arranged on the inner side of the lower end of the valve core shell 01, a water flow guide inlet 12 is arranged in the middle of the lower end of the piston 11, the lower end of the telescopic rod 06 penetrates through the water flow guide inlet 12, and the gap between the water flow guide inlet 12 and the telescopic rod 06 is 0.5 times of the gap between the water flow guide outlet 09 and the telescopic rod 06, so that the flow difference of water flow is formed between the water flow guide inlet 12 and the water flow guide outlet 09.
A first sealing ring 13 is arranged on the outer side of the upper end of the piston 11, and the first sealing ring 13 is a Y-shaped sealing ring; and a second sealing ring 14 is arranged on the bottom end surface of the piston 11, and the second sealing ring 14 is a U-shaped sealing ring. The water outlet 05 is located on the valve core housing 01 between the first sealing ring 13 and the second sealing ring 14. When the piston 11 is at the lower limit position, the water outlet 05 is sealed by the first sealing ring 13 and the second sealing ring 14, so that a valve core is in a closed state; when the piston 11 is at the upper limit, the second sealing ring 14 is separated from the inner bottom surface of the valve core shell 01, so that the open state of the valve core is formed.
Meanwhile, an auxiliary spring 15 is arranged in the piston 11, the upper end of the auxiliary spring 15 abuts against the sealing flow guide portion 08, and the lower end of the auxiliary spring 15 abuts against the piston 11. The auxiliary spring 15 is arranged to form a cavity between the piston 11 and the sealing guide 08, so as to form a pressure difference between the upper side and the lower side of the piston.
In order to improve the sealing performance between the valve core and the valve body 16, a third sealing ring 17 is arranged on the outer circumference of the upper end of the valve core shell 01, a fourth sealing ring 18 is arranged on the end face of the lower end of the valve core shell 01, and the third sealing ring 17 and the fourth sealing ring 18 are both O-shaped sealing rings.
When the telescopic rod 06 is in use, the telescopic rod 06 is in lower limit by pressing the pressing part 02, at this time, the sealing block 07 is separated from the sealing flow guide part 08, the water flow guide outlet 09 is in an open state, and water at the upper end of the piston 11 flows to the outside of the valve core shell 01 from the water flow guide outlet 09 and the flow guide gap channel 10 and flows out from a water outlet of the valve body 16. Meanwhile, water in the pipeline also flows in from the water flow guide inlet 12 to fill the cavity at the upper end of the piston 11, but because the gap between the water flow guide inlet 12 and the telescopic rod 06 is smaller than the gap between the water flow guide outlet 09 and the telescopic rod 06, the filled water is not as much as the water flowing out, so that negative pressure is formed at the upper end of the piston 11, and the water in the pipeline pushes the piston 11 upwards, namely the valve core is in an open state.
When the pressing part 02 is pressed again, the telescopic rod 06 drives the sealing block 07 to move upwards, at the moment, the sealing block 07 abuts against the sealing flow guide part 08, the water flow guide outlet 09 is in a closed state, the pressure of the upper end of the piston 11 is increased due to the inertia effect of water flow, the sectional area of the upper end of the piston 11 is larger than that of the lower end of the piston 11, pressure difference is formed, the piston 11 is pushed downwards, and the valve core is closed. In addition, due to the self-weight of the piston 11 and the action of the auxiliary spring 15, the piston 11 will also move downwards, further ensuring the sealing (closing) of the valve core, namely realizing the opening and closing of the valve core.
The utility model discloses reduce the dynamics of operation, improved the travelling comfort of using to reduced the stroke of operation, makeed holistic volume to reduce, application occasion is more extensive, and application market is wider.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A switch valve core with a bottom inlet and a side outlet comprises a valve core shell, wherein a pressing part is arranged at the upper end of the valve core shell, a telescopic part is arranged at the lower end of the pressing part in a matching manner, a return spring is arranged at the lower end of the telescopic part, and a water outlet is arranged at the lower end of the valve core shell; a sealing flow guide part is fixed on the inner side of the middle part of the valve core shell, a water flow guide outlet is formed in the center of the sealing flow guide part, the telescopic rod penetrates through the water flow guide outlet, and the sealing block abuts against the lower end of the water flow guide outlet; a flow guide gap channel is arranged in the sealed flow guide part and communicated with the outside of the valve core shell;
the inner side of the lower end of the valve core shell is provided with a piston, the middle part of the lower end of the piston is provided with a water flow guide inlet, the lower end of the telescopic rod penetrates through the water flow guide inlet, and the gap between the water flow guide inlet and the telescopic rod is smaller than the gap between the water flow guide outlet and the telescopic rod.
2. The bottom-in side-out switch valve cartridge of claim 1, wherein a first seal ring is disposed on the outside of the upper end of said piston, a second seal ring is disposed on the bottom end face of said piston, and said water outlet is located on the cartridge housing at a position between said first seal ring and said second seal ring.
3. The bottom-in side-out switch valve core according to claim 1 or 2, characterized in that an auxiliary spring is arranged inside the piston, the upper end of the auxiliary spring abuts against the sealing flow guide part, and the lower end of the auxiliary spring abuts against the piston.
4. The bottom-in side-out switch valve cartridge of claim 2, wherein said first seal ring is a Y-seal ring and said second seal ring is a U-seal ring.
5. The bottom-in side-out switch valve core as claimed in claim 1, wherein a third sealing ring is arranged on the outer circumference of the upper end of the valve core shell, and a fourth sealing ring is arranged on the lower end face of the valve core shell.
6. A bottom-in side-out switch valve cartridge as claimed in claim 5, wherein said third seal and said fourth seal are O-rings.
7. A bottom-in side-out switch cartridge as in claim 1, wherein the clearance between said water flow direction inlet and said telescoping pole is 0.4-0.6 times the clearance between said water flow direction outlet and said telescoping pole.
8. The bottom-in side-out switch cartridge of claim 1, wherein the clearance between said water flow direction inlet and said telescoping pole is 0.5 times the clearance between said water flow direction outlet and said telescoping pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220201691.1U CN217401724U (en) | 2022-01-25 | 2022-01-25 | Switch valve core with bottom inlet and side outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220201691.1U CN217401724U (en) | 2022-01-25 | 2022-01-25 | Switch valve core with bottom inlet and side outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217401724U true CN217401724U (en) | 2022-09-09 |
Family
ID=83137136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220201691.1U Active CN217401724U (en) | 2022-01-25 | 2022-01-25 | Switch valve core with bottom inlet and side outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217401724U (en) |
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2022
- 2022-01-25 CN CN202220201691.1U patent/CN217401724U/en active Active
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