Bottom-inlet and side-outlet automatic water stop valve element

Abstract

The utility model relates to the technical field of valve elements, and provides a bottom-in and side-out automatic water stop valve element which comprises a valve element shell, a pressing block is arranged at the upper end of the valve element shell, a fixed sealing guide part is arranged in the valve element shell, a first reset spring is arranged between the upper surface of the sealing guide part and the pressing block, and a second reset spring is arranged between the upper surface of the sealing guide part and the pressing block. A pressing block is arranged in the valve element shell, a moving rod is connected to the inner surface of the pressing block in an abutting mode, a water flow guide block is further arranged in the valve element shell, a water flow outlet is formed in the outer side of the valve element shell, a piston is movably connected to the interior of the water flow guide block, and a second reset spring is arranged between the inner surface of the piston and the water flow guide block. The valve core is loosened after the pressing block is pressed once, and the valve core is automatically closed after water is discharged for a period of time through the change of internal and external pressure difference of the piston, so that not only can water sources be saved, but also situations such as water flooding and water stopping can be prevented, and the valve core is simple in structure and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of valve cores, in particular to an automatic water-stop valve core with a bottom inlet and a side outlet. Background Art

[0002] The valve core is a valve part that the valve body uses its movement to achieve the basic functions of direction control, pressure control or flow control. The bottom-inlet and side-outlet valve core in the prior art, such as the Chinese patent "A bottom-inlet and side-outlet switch valve core" with announcement number CN217401724U, even if it is a bottom-inlet and side-outlet water outlet mode, is relatively simple in use occasions. Its description in the manual states that "When in use, by pressing the pressing part 02, the telescopic rod 06 is in the lower limit position, at this time the sealing block 07 is separated from the sealing guide part 08, and the water flow guide outlet 09 is in an open state...that is, the valve core is in an open state. When the pressing part 02 is pressed again...the valve core is closed...that is, the valve core is opened and closed."

[0003] It can be seen that the valve core opens after being pressed once and needs to be pressed again to close. However, when using it, the person leaves without pressing it again, resulting in continuous water flow, which not only wastes water resources but also causes serious consequences such as flooding. The existing valve core with water-stop function is not only complex in structure, but also relies on electricity and is costly if an electronic valve is used.

[0004] Therefore, a valve core that can automatically stop water is needed to solve the above problems. Utility Model Content

[0005] The utility model provides an automatic water-stop valve core with bottom inlet and side outlet, which solves the problem that when a person leaves the valve without pressing the valve again during use, the water flow continues, which not only wastes water resources but also causes serious consequences such as flooding. If an electronic valve is used, it relies on electricity and has high costs.

[0006] The technical solution of the utility model is as follows: it comprises a valve core housing, characterized in that a pressing block is arranged at the upper end of the valve core housing, a fixed sealing guide part is arranged inside the valve core housing, a return spring 1 is arranged between the upper surface of the sealing guide part and the pressing block, a moving rod is abutted and connected to the inner surface of the pressing block, a water flow guide block is also arranged inside the valve core housing, a water flow outlet is arranged on the outer side of the valve core housing, a piston is movably connected inside the water flow guide block, a return spring 2 is arranged between the inner surface of the piston and the water flow guide block, a plurality of water outlets are equidistantly arranged on the side surface of the lower end of the water flow guide block, and a water inlet is arranged on the lower surface of the water flow guide block;

[0007] The upper surface of the water flow guide block is provided with a first through hole;

[0008] A second through hole is provided on the lower surface of the piston, and two ends of the moving rod pass through the first through hole and the second through hole respectively.

[0009] As a preferred technical solution of the utility model, the moving rod includes a connecting head, a first lifting rod, a sealing block and a second lifting rod, the connecting head can abut against the inner surface of the pressing block, one end of the first lifting rod is fixedly connected to the connecting head, the other end of the first lifting rod passes through the first through hole and is fixedly connected to the sealing block, the sealing block can abut against the first through hole, one end of the second lifting rod is fixedly connected to the sealing block, the other end of the second lifting rod passes through the second through hole and is placed inside the second through hole.

[0010] As a preferred technical solution of the utility model, a gap one is provided between the outer surface of the water flow guide block and the inner side of the sealing guide portion and the valve core housing, and the gap one is connected to the water flow outlet.

[0011] As a preferred technical solution of the utility model, a filter screen is provided on the water inlet.

[0012] As a preferred technical solution of the utility model, a gap 2 is formed between the outer surface of the first lifting rod and the first through hole, and a gap 3 is formed between the outer surface of the second lifting rod and the second through hole.

[0013] As a preferred technical solution of the present utility model, the width of the second gap is 10-20 times the width of the third gap.

[0014] As a preferred technical solution of the present utility model, the width of the second gap is 16 times the width of the third gap.

[0015] The working principle and beneficial effects of the utility model are:

[0016] When the utility model is in use, the pressing block is pressed and then released, and the moving rod moves downward. At this time, the sealing block and the first through hole are changed from a sealing state against each other to an open state, and the water at the upper end of the piston passes through gap two and gap one of the first through hole, and finally flows out of the water outlet. At the same time, the water flows into the piston through gap three and replenishes the piston with water. However, since gap two is larger than gap three, the water replenished is not as much as the water flowing out, which causes a negative pressure to be formed on the upper end of the piston, causing the piston to be pushed upward. At this time, all the water flowing into the water inlet flows out through multiple water outlets, causing the valve core to discharge water. After the valve core discharges water for a period of time, the water inside the piston is continuously replenished, and the pressure difference between the inside and outside of the piston gradually approaches balance. At the same time, the piston is gradually reset under the action of reset spring two. At this time, the piston slowly moves downward and finally when the pressure difference between the inside and outside is balanced, the piston is at the lower limit position and the valve core is in a closed state. That is to say, after pressing the pressing block once and then releasing it, the piston will first move upward to open the valve core through the change of the pressure difference between the inside and outside of the piston, and water will continue to flow out. It can be used in wash basin faucets, etc., and water can flow out after pressing it only once. After the water flow is completed, there is no need to press the valve core again to close the valve core. The piston in the valve core will automatically close the valve core through the above principle, which can not only save water resources, but also prevent flooding and other situations. The water stops when people leave. The valve core has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is a cross-sectional view of the utility model;

[0021] In the figure: 1. Valve core housing; 2. Pressing block; 3. Sealing guide; 4. Reset spring 1; 5. Moving rod; 501. Connecting head; 502. First lifting rod; 503. Sealing block; 504. Second lifting rod; 6. Water flow guide block; 7. Water flow outlet; 8. Piston; 9. Water outlet; 10. Water inlet; 11. Reset spring 2; 12. Filter. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] like Figure 1-3 As shown, this embodiment proposes an automatic water-stop valve core with bottom inlet and side outlet, including a valve core housing 1, a pressing block 2 is arranged at the upper end of the valve core housing 1, a fixed sealing guide part 3 is arranged inside the valve core housing 1, a reset spring 4 is arranged between the upper surface of the sealing guide part 3 and the pressing block 2, after the pressing block 2 is pressed, the pressing block 2 can be automatically reset by the reset spring 4, the inner surface of the pressing block 2 is abutted and connected with a moving rod 5, a water flow guide block 6 is further arranged inside the valve core housing 1, a water flow outlet 7 is arranged on the outer side of the valve core housing 1, and the water flow guide block 6 is A piston 8 is movably connected inside, and a return spring 11 is provided between the inner surface of the piston 8 and the water flow guide block 6. A plurality of water outlets 9 are equidistantly provided on the lower end side of the water flow guide block 6. A water inlet 10 is provided on the lower surface of the water flow guide block 6. A filter screen 12 is provided on the water inlet 10 to filter impurities in the water entering the valve core. Water enters through the water inlet 10 and flows out through the water flow outlet 7 and the water outlet 9. A first through hole is provided on the upper surface of the water flow guide block 6, and a second through hole is provided on the lower surface of the piston 8. Both ends of the moving rod 5 pass through the first through hole and the second through hole respectively.

[0025] Furthermore, the moving rod 5 includes a connecting head 501, a first lifting rod 502, a sealing block 503 and a second lifting rod 504. The connecting head 501 can abut against the inner surface of the pressing block 2. When the pressing block 2 is pressed, the connecting head 501 moves synchronously. One end of the first lifting rod 502 is fixedly connected to the connecting head 501, and the other end of the first lifting rod 502 passes through the first through hole and is fixedly connected to the sealing block 503. A gap 2 is formed between the outer surface of the first lifting rod 502 and the first through hole. The sealing block 503 can abut against the first through hole. When the moving rod 5 is in the upper limit position, the sealing block 503 abuts against the first through hole, blocking the first through hole so that water cannot pass through. When the moving rod 5 moves downward, the first through hole is opened and water can pass through. One end of the second lifting rod 504 is fixedly connected to the sealing block 503, and the other end of the second lifting rod 504 passes through the second through hole and is placed inside the second through hole.

[0026] A gap 1 is provided between the outer surface of the water flow guide block 6 and the inner side of the sealing guide part 3 and the valve core housing 1. The gap 1 is connected to the water flow outlet 7. That is, when the first through hole is opened, the water flow can pass through the gap 1 and finally flow out through the water flow outlet 7.

[0027] The outer surface of the first lifting rod 502 and the first through hole form a gap two, and the outer surface of the second lifting rod 504 and the second through hole form a gap three. The width of the gap two is 16 times the width of the gap three, thereby ensuring that the flow rate difference between the water flow into the valve core through the gap three and the water flow out of the valve core through the gap one causes the piston 8 to move, thereby realizing the opening of the valve core. After a period of time, the water flow difference is close to balance, and the piston 8 is reset under the action of the reset spring 2 11, and then the valve core is automatically in a closed state.

[0028] When the utility model is in use, by pressing and then releasing the pressing block 2, the pressing block 2 will drive the moving rod 5 to move downward. At this time, the sealing block 503 and the first through hole change from a sealing state against each other to an open state, and the water at the upper end of the piston 8 passes through the gap 2 and the gap 1 of the first through hole, and finally flows out of the water outlet 7. At the same time, the water flows into the piston 8 through the gap 3 and replenishes the piston 8 with water. However, since the gap 2 is larger than the gap 3, the water replenished is not as much as the water flowing out, which causes a negative pressure to be formed on the upper end of the piston 8, causing the piston 8 to be pushed upward. At this time, all the water flowing into the water inlet 10 flows out through multiple water outlets 9, causing the valve core to discharge water. After the valve core discharges water for a period of time, the water inside the piston 8 is continuously replenished, and the pressure difference between the inside and outside of the piston 8 gradually approaches balance. At the same time, the piston 8 is gradually reset under the action of the reset spring 2 11. At this time, the piston 8 slowly moves downward and finally when the pressure difference between the inside and outside is balanced, the piston 8 is at the lower limit position and the valve core is in a closed state. That is to say, after pressing the pressing block 2 once and then releasing it, the pressure difference between the inside and outside of the piston 8 changes, and the piston 8 first moves upward to open the valve core and continuously discharge water. It can be used in a washbasin faucet, etc., and water can be discharged after pressing it only once. After the water discharge is completed, there is no need to press the valve core again to close the valve core. The piston 8 in the valve core will automatically close the valve core through the above principle, which can not only save water resources, but also prevent the occurrence of flooding and the like. The water stops when people leave. The valve core has a simple structure and low cost.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottom-inlet and side-outlet automatic water-stop valve core, comprising a valve core housing (1), characterized in that: A pressing block (2) is arranged at the upper end of the valve core housing (1), a fixed sealing guide part (3) is arranged inside the valve core housing (1), a return spring (4) is arranged between the upper surface of the sealing guide part (3) and the pressing block (2), a moving rod (5) is abutted and connected to the inner surface of the pressing block (2), a water flow guide block (6) is also arranged inside the valve core housing (1), a water flow outlet (7) is arranged on the outer side of the valve core housing (1), a piston (8) is movably connected inside the water flow guide block (6), a return spring (11) is arranged between the inner surface of the piston (8) and the water flow guide block (6), a plurality of water outlets (9) are equidistantly arranged on the side surface of the lower end of the water flow guide block (6), and a water inlet (10) is arranged on the lower surface of the water flow guide block (6); The upper surface of the water flow guide block (6) is provided with a first through hole; A second through hole is provided on the lower surface of the piston (8), and two ends of the moving rod (5) pass through the first through hole and the second through hole respectively.

2. The bottom-inlet and side-outlet automatic water-stop valve core according to claim 1, characterized in that: The moving rod (5) comprises a connecting head (501), a first lifting rod (502), a sealing block (503) and a second lifting rod (504); the connecting head (501) can abut against the inner surface of the pressing block (2); one end of the first lifting rod (502) is fixedly connected to the connecting head (501); the other end of the first lifting rod (502) passes through the first through hole and is fixedly connected to the sealing block (503); the sealing block (503) can abut against the first through hole; one end of the second lifting rod (504) is fixedly connected to the sealing block (503); the other end of the second lifting rod (504) passes through the second through hole and is placed inside the second through hole.

3. The bottom-inlet and side-outlet automatic water-stop valve core according to claim 2, characterized in that: A gap 1 is provided between the outer surface of the water flow guide block (6), the sealing guide portion (3) and the inner side of the valve core housing (1), and the gap 1 is connected to the water flow outlet (7).

4. The bottom-inlet and side-outlet automatic water-stop valve core according to claim 1, characterized in that: A filter screen (12) is provided on the water inlet (10).

5. The bottom-inlet and side-outlet automatic water-stop valve core according to claim 2, characterized in that: A second gap is formed between the outer surface of the first lifting rod (502) and the first through hole, and a third gap is formed between the outer surface of the second lifting rod (504) and the second through hole.

6. The bottom-inlet and side-outlet automatic water-stop valve core according to claim 5, characterized in that: The width of the second gap is 10-20 times the width of the third gap.

7. The bottom-inlet and side-outlet automatic water-stop valve core according to claim 5, characterized in that: The width of the second gap is 16 times the width of the third gap.

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