Flow adjusting valve core with long service life

Abstract

The utility model relates to the technical field of valve cores, and provides a flow regulating valve core with long service life, which comprises a valve core shell, a limiting block is movably mounted at the upper end in the valve core shell, a sealing block is movably mounted at the lower end of the valve core shell, the limiting block is clamped with the sealing block, a pressing block is mounted at the upper end of the limiting block, and the pressing block is clamped with the sealing block. The lower end of the pressing block is connected with a telescopic assembly, 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. The upper moving assembly is designed into three independent parts including the upper sleeve shell, the middle sleeve shell and the bottom plate, so that the first spring and the bottom plate can be kept relatively independent in the process that the pressing block or the rotary limiting block adjusts the water flow, abrasion between the spring and a structural part is reduced, the service life is prolonged, and due to mutual independence, the service life is prolonged. Therefore, the structure is more stable, the performance of the spring cannot be affected, the structure is simple, accessories can be independently replaced, use is convenient, the sealing performance is good, and the service life is longer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of valve core, specifically, relate to a long service life flow regulating valve core. BACKGROUND

[0002] In the existing valve technology, the valve core is the core component of the valve, and its performance directly affects its sealing performance, control accuracy and service life. During the opening, closing and fluid flow process of the valve core, the components thereof often need to be tightly matched. However, such frequent relative movement and scouring action of the fluid make the valve core prone to wear.

[0003] The patent specification with the publication number CN222229480U discloses a switch valve core, which comprises a valve core shell, a knob and a nut. The outer surface of the middle part of the valve core shell is provided with external threads. A limiting block is movably installed on the upper end of the inside of the valve core shell. A sealing block is movably installed on the lower end of the valve core shell. The limiting block is connected with the sealing block. A pressing block is installed on the upper end of the limiting block. A telescopic assembly is connected with the lower end of the pressing block. A bottom cover is also arranged at the bottom end of the valve core shell. A water outlet is arranged on the bottom cover. The telescopic assembly comprises a telescopic block, a return spring, a sealing guide part, a telescopic rod and a piston. However, it is found in the implementation of the related technology that the above technical solution has the following problems: during the use of the above device, the knob is rotated, and the limiting block and the telescopic block are also rotated during the rotation. Therefore, the telescopic block and the return spring will generate friction, and wear will occur, which reduces the service life. Such wear will also affect the performance of the return spring, causing the valve core to fail to work normally.

[0004] In view of the above, a long service life flow regulating valve core is provided to solve the above problems. SUMMARY

[0005] The utility model discloses a long service life flow regulating valve core, solves the problem such as wear in the use of valve core.

[0006] The technical scheme of the utility model is as follows: a valve core shell is provided, characterized in that: a limiting block is movably installed on the upper end of the inside of the valve core shell. A sealing block is movably installed on the lower end of the valve core shell. The limiting block is connected with the sealing block. A pressing block is installed on the upper end of the limiting block. A telescopic assembly is connected with the lower end of the pressing block. A bottom cover is also arranged at the bottom end of the valve core shell. A water outlet is arranged on the bottom cover.

[0007] The telescopic assembly comprises an upper moving assembly, a spring one and a lower moving assembly. The upper moving assembly is connected with the pressing block. A fixed sealing guide part is arranged in the inside of the sealing block. A spring one is arranged between the lower surface of the upper moving assembly and the sealing guide part. The sealing guide part is connected with the upper moving assembly through the middle gap.

[0008] The upper moving assembly comprises an upper sleeve, a middle sleeve, a bottom plate and a moving rod, the upper sleeve is connected to the inner side of the limiting block, the inside of the upper sleeve is provided with the middle sleeve, the bottom of the middle sleeve is connected with the bottom plate, the inside of the middle sleeve is further provided with the moving rod, one end of the moving rod penetrates through the bottom plate, and spring two is arranged between the upper surface of the moving rod and the inner surface of the middle sleeve.

[0009] As a preferred technical scheme of the utility model, the lower moving assembly comprises a plug and a piston, the lower end of the telescopic rod sequentially penetrates through the bottom plate and the sealing guide part and is connected with the plug, the inner side of the sealing block is provided with the piston, and the plug can abut against and be connected to the piston.

[0010] As a preferred technical scheme of the utility model, the middle part of the sealing block is provided with two open groove bodies and two closed groove bodies, the outer surface of the valve core shell is provided with a trapezoidal opening, and the trapezoidal opening corresponds to the open groove body and the closed groove body.

[0011] As a preferred technical scheme of the utility model, the outer side of the pressing block is equidistantly provided with four convex blocks one, and the lower surface of the pressing block is dentiform.

[0012] As a preferred technical scheme of the utility model, the outer side of the upper sleeve is equidistantly provided with four locking blocks, the upper surfaces of the four locking blocks are all inclined and matched with the lower surface of the pressing block.

[0013] As a preferred technical scheme of the utility model, the inner wall of the limiting block is equidistantly provided with four groups of locking grooves, and any group of the locking grooves is matched with the corresponding locking block.

[0014] As a preferred technical scheme of the utility model, the inner wall of the pressing block is provided with two annular grooves, the outer wall of the upper sleeve is provided with a convex, and the convex is matched with the annular groove.

[0015] As a preferred technical scheme of the utility model, the inner side of the sealing block is provided with a V-shaped groove.

[0016] The working principle and beneficial effects of the utility model are as follows:

[0017] The utility model discloses a valve core is closed when first need pressing press block, drive mobile pole to go down, make mobile pole reach a low point, plug head is opposite to piston at this moment, and push piston to go down to the lowest position, realize the closing of valve core, press block when pressing again, telescopic pole goes up, drive its back to the original point through spring one, the water in the piston interior is released rapidly, piston goes up rapidly, realized the opening of valve core, in the process of valve core opening, the rotation limit block will drive sealing block to rotate together, and two open grooves on sealing block and two closed grooves also rotate at this time, when the rotation process is two open grooves and trapezoidal opening close coincidence, the water inlet opening is bigger and bigger at this time, contrarily same reason. Through the upper mobile subassembly design is three independent parts of upper sleeve shell, middle sleeve shell, bottom plate, so in the process of pressing press block or in the rotation limit block adjustment water flow, spring one and bottom plate can also keep relative independence, reduce the wear and tear between spring and structural member, increase the life, this design is independent because of each other, therefore the structure is more stable and can not influence the performance of spring, simple structure can replace the spare part independently, convenient to use, and the service life is longer. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be explained further in detail below in combination with the drawings and specific embodiment.

[0019] Figure 1 It is the internal structure diagram of the utility model;

[0020] Figure 2 It is the explosion drawing of the utility model mobile subassembly;

[0021] Figure 3 It is the internal structure diagram of the explosion drawing of the utility model mobile subassembly;

[0022] Figure 4 It is the explosion drawing of the utility model limit block and sealing block;

[0023] In the drawing: 1, valve core shell;2, limit block;3, sealing block;4, press block;5, telescopic subassembly;51, mobile subassembly;511, upper sleeve shell;512, middle sleeve shell;513, bottom plate;514, mobile pole;515, spring two;52, spring one;53, lower mobile subassembly;531, plug;532, piston;6, bottom cover;7, sealing guide portion;8, open groove;9, closed groove;10, locking block;11, locking groove;12, annular groove;13, protrusion;14, V-shaped groove. SPECIFIC EMBODIMENT

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Example

[0026] like Figures 1-4 As shown, this embodiment proposes a flow control valve core with a long service life, including a valve core housing 1. A limit block 2 is movably installed at the upper end of the valve core housing 1, and a sealing block 3 is movably installed at the lower end of the valve core housing 1. The limit block 2 and the sealing block 3 are engaged and connected to form a whole. A pressing block 4 is installed at the upper end of the limit block 2, and a telescopic component 5 is connected to the lower end of the pressing block 4. A bottom cover 6 is also provided at the bottom end of the valve core housing 1. A water outlet is provided on the bottom cover 6. Two open grooves 8 and two closed grooves 9 are provided in the middle of the sealing block 3. A trapezoidal opening is provided on the outer surface of the valve core housing 1. The trapezoidal opening corresponds to the open grooves 8 and the closed grooves 9. It can be understood that when the limit block 2 and the sealing block 3 rotate, the two open grooves 8 and the two closed grooves 9 on the sealing block 3 rotate simultaneously, and the water flow is controlled through the trapezoidal opening.

[0027] Furthermore, the telescopic component 5 includes an upper moving component 51, a spring 52, and a lower moving component 53. The upper moving component 51 is connected to the pressing block 4. The sealing block 3 has a fixed sealing guide 7 inside. The spring 52 is provided between the lower surface of the upper moving component 51 and the sealing guide 7. The upper moving component 51 is connected to the middle of the sealing guide 7 with a gap. The upper moving component 51 includes an upper sleeve 511, a middle sleeve 512, a base plate 513, and a moving rod 514. We designed the upper moving component 51 as three parts. The upper sleeve 511 is connected to the inner side of the limiting block 2. The middle sleeve 512 is provided inside the upper sleeve 511. 2. The bottom of the middle sleeve 512 is connected to the base plate 513. When the pressing block 4 is pressed, the upper sleeve 511 and the base plate 513 are designed as two independent parts. Since the upper sleeve 511 will rotate, the base plate 513 and the spring 52 will not move relative to each other after pressing, thus effectively reducing the wear of the upper moving component 51. The middle sleeve 512 is also provided with a moving rod 514. One end of the moving rod 514 passes through the base plate 513. A spring 515 is provided between the upper surface of the moving rod 514 and the inner surface of the middle sleeve 512. The spring 515 can reset the moving rod 514.

[0028] The lower moving assembly 53 comprises a plug 531 and a piston 532, the lower end of the moving rod 514 passes through the bottom plate 513 and the sealing guide part 7 in sequence and is connected with the plug 531, the inner side of the sealing block 3 is provided with the piston 532, the plug 531 can abut against the piston 532, by pressing the pressing block 4, the moving rod 514 is driven to open and close the valve core, thereby controlling the opening and closing work of the valve core.

[0029] The outer side of the pressing block 4 is provided with four convex blocks I, and the lower surface of the pressing block 4 is toothed. The outer side of the upper sleeve 511 is provided with four locking blocks 10, the upper surfaces of the four locking blocks 10 are all provided in a slope and are matched with the lower surface of the pressing block 4, which can effectively control the displacement of the upper sleeve 511 after the pressing block 4 is pressed. The inner wall of the limiting block 2 is provided with four groups of locking grooves 11, any one group of the locking grooves 11 is matched with the corresponding locking block 10. The inner wall of the pressing block 4 is provided with two annular grooves 12, and the outer wall of the upper sleeve 511 is provided with a convex 13 matched with the annular groove 12.

[0030] The utility model discloses a valve core is opened, the inside of sealing block 3 is equipped with V type groove 14, can explain as water inlet hole, and the water inlet area is small, and the piston 505 center hole is drain hole, and the area is big, like this when piston opens, and the water is slow, and the piston 505 will be under the internal and external pressure difference and move upward, form boiling water state, when closing piston 505, the cavity of sealing block 3 only V type groove 14 can enter water, and the water in the cavity is more and more, and the piston 505 will move downward, finally form the closing state, in the process of valve core opening, rotary limit block 2 will drive sealing block 3 to rotate, and two open slot body 8 and two closed slot body 9 on sealing block 3 also rotate when, when the rotation process is two open slot body 8 and trapezoidal opening 10 close coincident, the water inlet opening is bigger and bigger at this time, on the contrary, the rotation process is two closed slot body 9 and trapezoidal opening 10 gradually coincident, two closed slot body 9 gradually shield trapezoidal opening 10 at this time, the water inlet amount is smaller and smaller at this time, through the upper mobile assembly 51 design is three independent parts of upper sleeve 511, middle sleeve 512, bottom plate 513, like this in the process of pressing pressing block 4 or in rotary limit block 2 adjustment water flow, spring one 52 and bottom plate 513 can also keep relatively independent, reduce the wear and tear between spring and structural member, increase the life, this design is independent due to each other, therefore the structure is more stable and can not influence the performance of spring, simple structure, can independently replace spare parts, convenient to use, good sealing performance, longer service life.

[0031] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A flow control valve core with a long service life, comprising a valve core housing (1), characterized in that: A limiting block (2) is movably installed at the upper end of the valve core housing (1), and a sealing block (3) is movably installed at the lower end of the valve core housing (1). The limiting block (2) is engaged with the sealing block (3). A pressing block (4) is installed at the upper end of the limiting block (2), and a telescopic component (5) is connected to the lower end of the pressing block (4). A bottom cover (6) is also provided at the bottom end of the valve core housing (1), and a water outlet is provided on the bottom cover (6). The telescopic component (5) includes an upper moving component (51), a spring (52), and a lower moving component (53). The upper moving component (51) is connected to the pressing block (4). The sealing block (3) has a fixed sealing guide (7) inside. The lower surface of the upper moving component (51) and the sealing guide (7) are provided with a spring (52). The upper moving component (51) is connected to the middle of the sealing guide (7) with a gap. The upper moving component (51) includes an upper shell (511), a middle shell (512), a base plate (513), and a moving rod (514). The upper shell (511) is connected to the inner side of the limiting block (2). The upper shell (511) has a middle shell (512) inside. The bottom of the middle shell (512) is connected to the base plate (513). The middle shell (512) also has a moving rod (514) inside. One end of the moving rod (514) passes through the base plate (513). A spring (515) is provided between the upper surface of the moving rod (514) and the inner surface of the middle shell (512).

2. The flow control valve core with long service life according to claim 1, characterized in that, The lower moving assembly (53) includes a plug (531) and a piston (532). The lower end of the moving rod (514) passes through the base plate (513) and the sealing guide (7) in sequence and is connected to the plug (531). The piston (532) is provided on the inner side of the sealing block (3). The plug (531) can be connected to the piston (532).

3. The flow control valve core with long service life according to claim 1, characterized in that, The sealing block (3) has two open grooves (8) and two closed grooves (9) in the middle. The outer surface of the valve core housing (1) is provided with a trapezoidal opening, which corresponds to the open grooves (8) and closed grooves (9).

4. The flow control valve core with long service life according to claim 1, characterized in that, The pressing block (4) has four protrusions equidistantly arranged on its outer side, and the lower surface of the pressing block (4) is toothed.

5. A flow control valve core with a long service life according to claim 4, characterized in that, The outer side of the upper housing (511) is provided with four locking blocks (10) at equal intervals. The upper surfaces of the four locking blocks (10) are all inclined and adapted to the lower surface of the pressing block (4).

6. A flow control valve core with a long service life according to claim 5, characterized in that, The inner wall of the limiting block (2) is provided with four sets of locking grooves (11) at equal intervals, and any set of locking grooves (11) is adapted to the corresponding locking block (10).

7. A flow control valve core with a long service life according to claim 1, characterized in that, The inner wall of the pressing block (4) is provided with two annular grooves (12), and the outer wall of the upper shell (511) is provided with a protrusion (13), which is adapted to the annular grooves (12).

8. A flow control valve core with a long service life according to claim 1, characterized in that, The inner side of the sealing block (3) is provided with a V-groove (14).

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