Switch valve element capable of adjusting water yield

Abstract

The utility model relates to the technical field of valve cores, and provides a switch valve core capable of adjusting water yield, which comprises a valve core shell, a knob and a nut, and is characterized in that an external thread is arranged on the outer surface of the middle part of the valve core shell, a limiting block is movably arranged at the upper end in the valve core shell, a sealing block is movably arranged at the lower end of the valve core shell, and the sealing block is connected with the knob. A limiting block is arranged at the bottom end of the valve element shell and connected with the sealing block in a clamped mode, a pressing block is installed at the upper end of the limiting block, a telescopic assembly is connected to the lower end of the pressing block, a bottom cover is further arranged at the bottom end of the valve element shell, and a water outlet is formed in the bottom cover. Inner teeth are arranged on the inner side of the knob; and an internal thread is arranged on the inner side of the nut. Through the simple knob rotating design, the size of a water inlet opening formed by the two open groove bodies, the two closed groove bodies and the trapezoidal opening on the sealing block can be adjusted, so that the water inlet amount is adjusted, and the water inlet valve is simple in structure, convenient to use, good in sealing performance and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of valve cores, and in particular to a switch valve core capable of adjusting water output. Background Art

[0002] In existing valve technology, the valve core is a vital component that achieves basic control of the direction, pressure and flow of the fluid by moving inside the valve body. Valve cores can be divided into three categories according to their operating mechanism: rotating valve cores, lifting valve cores and pressing valve cores. Lifting and pressing valve cores are similar in function, and they both rely on a control rod that can move axially to open or close the water path. Specifically, this design includes a blocking mechanism on the control rod, which blocks or releases the water inlet hole on the valve housing by moving up and down, thereby controlling the flow of water.

[0003] However, both types of valve cores face some challenges. First, because the blocking mechanism directly blocks the water inlet of the valve housing, the control rod is subjected to extremely high water pressure, which requires the user to apply considerable force to operate the control rod. In addition, if elastic elements such as springs are used to help reset the control rod, these elastic elements must also overcome the force of water pressure, which will shorten the service life of the valve core. Most importantly, the design of these valve cores cannot effectively adjust the amount of water flow, which limits their use scenarios. The complex internal structure may cause the valve core to be damaged during the adjustment process, especially when the valve core is designed as a control rod to adjust the water flow. Due to the certain pressure inside the valve core, improper adjustment may affect the normal use of the valve, thereby reducing its service life.

[0004] In summary, a switch valve core with adjustable water output is provided to solve the above problems. Utility Model Content

[0005] The utility model provides a switch valve core capable of adjusting the water output, which solves the problem that the normal use of the valve core is affected by improper adjustment of the water flow.

[0006] The technical solution of the utility model is as follows: it includes a valve core housing, a knob and a nut, and is characterized in that: an external thread is arranged on the middle outer surface of the valve core housing, a limit block is movably installed on the inner upper end of the valve core housing, a sealing block is movably installed on the lower end of the valve core housing, the limit block is clamped with the sealing block, a pressing block is installed on the upper end of the limit block, a telescopic component is connected to the lower end of the pressing block, a bottom cover is also arranged on the bottom end of the valve core housing, and a water outlet is arranged on the bottom cover;

[0007] The inner side of the knob is provided with internal teeth; the inner side of the nut is provided with internal threads;

[0008] The outer surface of the limit block is provided with external threads and external teeth in sequence from top to bottom, the internal teeth and the external teeth are meshed, the internal threads and the external threads are threadedly connected, and the knob and the limit block are fixed by a nut;

[0009] Two open slots and two closed slots are arranged in the middle of the sealing block, and a trapezoidal opening is arranged on the outer surface of the valve core housing, and the trapezoidal opening corresponds to the open slots and the closed slots.

[0010] As a preferred technical solution of the utility model, the telescopic assembly includes a telescopic block, a return spring, a sealing guide, a telescopic rod and a piston, the lower end of the pressing block is provided with a telescopic block, the lower end of the telescopic block is provided with a return spring, a fixed sealing guide is provided inside the sealing block, a telescopic rod is extended downward from the center of the telescopic block, a piston is provided on the inner side of the sealing block, and the lower end of the telescopic rod passes through the sealing guide and is connected to a blocking block;

[0011] As a preferred technical solution of the utility model, the upper end of the pressing block is sleeved with a cover body.

[0012] As a preferred technical solution of the utility model, a mesh cover is sleeved on the lower end of the outer surface of the valve core shell.

[0013] As a preferred technical solution of the utility model, both upper and lower ends of the sealing block are provided with relative Y-shaped sealing rings.

[0014] As a preferred technical solution of the utility model, a protrusion is provided at the lower end of the sealing block, and a limiting groove corresponding to the protrusion is provided on the inner side of the bottom cover.

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

[0016] When the utility model is in use, it is first necessary to press the pressing block to drive the telescopic rod to move downward so that the telescopic rod reaches a low point. At this time, the blocking block abuts against the piston and pushes the piston down to the lowest position to close the valve core. When the pressing block is pressed again, the telescopic rod moves upward and is driven back to the original point by the return spring. The water inside the piston is quickly released, and the piston moves upward quickly to open the valve core. In the process of opening the valve core, the knob is turned, and the limit block drives the sealing block to rotate together. At this time, the two open slots and the two closed slots on the sealing block will also rotate. When the rotation process is the two open slots and the trapezoidal opening When they are close to overlapping, the water inlet opening is getting bigger and bigger. On the contrary, when the rotation process is that the two closed slots gradually overlap with the trapezoidal opening, the two closed slots gradually block the trapezoidal opening, and the water inlet amount is getting smaller and smaller. Finally, only a small amount of water can enter from the gap. Whether water can flow out is ultimately determined by the opening and closing of the telescopic assembly controlled by the pressing block. Through a simple knob rotation design, the size of the water inlet opening formed by the two open slots on the sealing block and the two closed slots and the trapezoidal opening can be adjusted, thereby adjusting the water inlet amount. The structure is simple, easy to use, and has good sealing performance and a long service life. 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 a schematic diagram of the internal structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection method between the limit block and the knob in this practical application;

[0020] Figure 3 This is a schematic diagram of the position of the valve core housing and the opening slot body of the utility model;

[0021] Figure 4 It is an exploded view of the limit block, the sealing block and the bottom cover of the utility model;

[0022] In the figure: 1. valve core housing; 2. limit block; 3. sealing block; 4. pressing block; 5. telescopic assembly; 501. telescopic block; 502. return spring; 503. sealing guide; 504. telescopic rod; 505. piston; 506. blocking block; 6. knob; 7. nut; 8. open slot; 9. closed slot; 10. trapezoidal opening; 11. bottom cover; 12. cover; 13. mesh cover; 14. Y-shaped sealing ring; 15. bump. DETAILED DESCRIPTION

[0023] 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.

[0024] Example

[0025] like Figure 1-4 As shown, this embodiment proposes a switch valve core with adjustable water output, including a valve core housing 1, a knob 6 and a nut 7. The middle outer surface of the valve core housing 1 is provided with an external thread. A limit block 2 is movably installed on the inner upper end of the valve core housing 1. The limit block 2 can rotate in the valve core housing 1. A sealing block 3 is movably installed on the lower end of the valve core housing 1. The limit block 2 is clamped with the sealing block 3. When the limit block 2 and the sealing block 3 are clamped, the two form a whole. Only by driving the limit block 2 to rotate, the limit block 2 and the sealing block 3 will rotate together. The upper end of the limit block 2 is provided with A pressing block 4 is provided, and a telescopic component 5 is connected to the lower end of the pressing block 4. A bottom cover 11 is also provided at the bottom end of the valve core housing 1, and a water outlet is provided on the bottom cover 11. An inner tooth is provided on the inner side of the knob 6, and an inner thread is provided on the inner side of the nut 7. The outer surface of the limit block 2 is provided with an outer thread and an outer tooth from top to bottom in sequence, and the inner tooth and the outer tooth are meshed with each other, and the inner thread and the outer thread are threadedly connected. The knob 6 is fixed to the limit block 2 by the nut 7, that is, rotating the knob 6 will drive the limit block 2 to rotate, thereby driving the limit block 2 and the sealing block 3 to rotate as a whole, and the sealing block 3 Two open slots 8 and two closed slots 9 are arranged in the middle part, and a trapezoidal opening 10 is arranged on the outer surface of the valve core housing 1, and the trapezoidal opening 10 corresponds to the open slot 8 and the closed slot 9. It can be understood that when the knob 6 is turned, the limit block 2 will drive the sealing block 3 to rotate together, and at this time, the two open slots 8 and the two closed slots 9 on the sealing block 3 will also rotate. When the two open slots 8 and the two closed slots 9 rotate, their water inlet openings will be controlled according to the trapezoidal openings 10. A convex block 15 is arranged at the lower end of the sealing block 3, and a The limiting groove corresponding to the protrusion 15 allows the sealing block 3 to rotate back and forth within a certain range to adjust the size of the water flow. That is to say, if the two open slots 8 are rotated to coincide with the trapezoidal opening 10, the water inlet opening is the largest at this time, and the water inlet amount is the maximum value at this time. Conversely, when the two closed slots 9 are rotated to gradually coincide with the trapezoidal opening 10, the two closed slots 9 gradually block the trapezoidal opening 10. At this time, only a small amount of water can enter from the gap therebetween. Whether water flows out is ultimately determined by the pressing block 4 controlling the opening and closing of the telescopic assembly 5.

[0026] Furthermore, the telescopic assembly 5 includes a telescopic block 501, a return spring 502, a sealing guide 503, a telescopic rod 504 and a piston 505. The lower end of the pressing block 4 is cooperated with the telescopic block 501, the lower end of the telescopic block 501 is provided with a return spring 502, the interior of the sealing block 3 is provided with a fixed sealing guide 503, the center of the telescopic block 501 is extended downward with a telescopic rod 504, the inner side of the sealing block 3 is provided with a piston 505, the lower end of the telescopic rod 504 passes through the sealing guide 503 and is connected to a blocking block 506, pressing the pressing block 4 will drive the telescopic assembly 5 to open and close the valve core, thereby controlling the opening and closing of the valve core.

[0027] The upper end of the pressing block 4 is sleeved with a cover body 12 , and the pressing block 4 is driven to move by pressing the cover body 12 .

[0028] A mesh cover 13 is sleeved on the lower end of the outer surface of the valve core housing 1 for filtering impurities.

[0029] The upper and lower ends of the sealing block 3 are both provided with opposite Y-shaped sealing rings 14. The two opposite Y-shaped sealing rings 14 seal the upper and lower opening grooves 8 to improve the overall sealing performance of the valve core.

[0030] When the utility model is in use, it is first necessary to press the pressing block 4 to drive the telescopic rod 504 to move downward so that the telescopic rod 504 reaches a low point. At this time, the blocking block 506 abuts against the piston 505 and pushes the piston 505 down to the lowest position to close the valve core. When the pressing block 4 is pressed again, the telescopic rod 504 moves upward and is driven back to the original point by the return spring 502. The water inside the piston 505 is quickly released, and the piston 505 moves upward quickly to open the valve core. In the process of opening the valve core, the knob 6 is turned, and the limit block 2 will drive the sealing block 3 to rotate together. At this time, the two open slots 8 and the two closed slots 9 on the sealing block 3 will also rotate. When the rotation process is two When the open slot body 8 and the trapezoidal opening 10 are close to overlapping, the water inlet opening is getting bigger and bigger. On the contrary, when the two closed slot bodies 9 and the trapezoidal opening 10 are gradually overlapping in the rotation process, the two closed slot bodies 9 gradually block the trapezoidal opening 10, and the water inlet amount is getting smaller and smaller. Finally, only a small amount of water can enter from the gap. Whether water can be discharged is finally determined by the opening and closing of the telescopic component 5 controlled by the pressing block 4. Through the simple rotation design of the knob 6, the size of the water inlet opening formed by the two open slot bodies 8 on the sealing block 3 and the two closed slot bodies 9 and the trapezoidal opening 10 can be adjusted, thereby adjusting the water inlet amount. The structure is simple, easy to use, and has good sealing performance and long service life.

[0031] 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 switch valve core capable of adjusting water output, comprising a valve core housing (1), a knob (6) and a nut (7), wherein: The middle outer surface of the valve core housing (1) is provided with an external thread, a limit block (2) is movably mounted on the inner upper end of the valve core housing (1), a sealing block (3) is movably mounted on the lower end of the valve core housing (1), the limit block (2) is snap-connected with the sealing block (3), a pressing block (4) is mounted on the upper end of the limit block (2), a telescopic component (5) is connected to the lower end of the pressing block (4), a bottom cover (11) is further provided on the bottom end of the valve core housing (1), and a water outlet is provided on the bottom cover (11); The inner side of the knob (6) is provided with internal teeth; the inner side of the nut (7) is provided with internal threads; The outer surface of the limit block (2) is provided with external threads and external teeth in sequence from top to bottom, the internal teeth and the external teeth are meshed with each other, the internal threads and the external threads are threadedly connected, and the knob (6) and the limit block (2) are fixed by a nut (7); Two open grooves (8) and two closed grooves (9) are arranged in the middle of the sealing block (3), and a trapezoidal opening (10) is arranged on the outer surface of the valve core housing (1), and the trapezoidal opening (10) corresponds to the open grooves (8) and the closed grooves (9).

2. The switch valve core capable of adjusting water output according to claim 1, characterized in that: The telescopic assembly (5) comprises a telescopic block (501), a return spring (502), a sealing guide (503), a telescopic rod (504) and a piston (505); the lower end of the pressing block (4) is provided with the telescopic block (501); the lower end of the telescopic block (501) is provided with a return spring (502); a fixed sealing guide (503) is provided inside the sealing block (3); a telescopic rod (504) is extended downward from the center of the telescopic block (501); a piston (505) is provided on the inner side of the sealing block (3); the lower end of the telescopic rod (504) passes through the sealing guide (503) and is connected to a blocking block (506).

3. The switch valve core capable of adjusting water output according to claim 1, characterized in that: The upper end of the pressing block (4) is sleeved with a cover body (12).

4. The switch valve core capable of adjusting water output according to claim 1, characterized in that: A mesh cover (13) is sleeved on the lower end of the outer surface of the valve core housing (1).

5. The switch valve core capable of adjusting water output according to claim 1, characterized in that: The upper and lower ends of the sealing block (3) are both provided with opposite Y-shaped sealing rings (14).

6. The switch valve core capable of adjusting water output according to claim 1, characterized in that: A protrusion (15) is provided at the lower end of the sealing block (3), and a limiting groove corresponding to the protrusion (15) is provided on the inner side of the bottom cover (11).

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