Slowly-opened large-flow angle valve

Abstract

The slow-opening large-flow angle valve comprises a valve shell and a water flow control mechanism, the valve shell is provided with a mounting cavity for assembling the water flow control mechanism, and a water inlet hole, a water outlet hole and an assembling hole which are respectively communicated with the mounting cavity; the water flow control mechanism is provided with a fixed sleeve seat, a movable sliding seat, a sealing cover and a valve rod; an inner threaded hole is formed in the movable sliding seat, an outer threaded section in threaded connection with the inner threaded hole is arranged at the inner end of the valve rod, and the outer end of the valve rod penetrates out of the fixed sleeve seat; the valve rod is rotated, and the movable sliding seat advances in the fixed sleeve seat to drive the sealing cover to close the water inlet hole or retreats to drive the sealing cover to open the water inlet hole under the cooperation of the internal thread and the external thread; by means of the structure, the valve rod and the movable sliding seat of the angle valve are connected through the threads, the sealing cover on the movable sliding seat is controlled to move to open or close the water inlet hole by rotating the valve rod to adjust the length of the threaded connection overlapping position, and the opening and closing speed of the angle valve controlled through thread rotation is slow; however, the water inlet hole is completely opened during opening, and the large-flow water outlet effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a slow-opening large-flow angle valve. Background Art

[0002] An angle valve is a common water flow on-off control device in daily life. The angle valve can be opened or closed to control the flow of water. The valve body of the angle valve has three ports: a water inlet, a water outlet, and a water volume control port. When in use, the water inlet is connected to the water inlet pipe, and a water outlet pipe is connected to the water outlet for connection to a faucet or a water heater. A valve core for controlling the opening and closing of the water outlet is arranged in the water volume control port. Generally, the existing valve core controls the size of the water passing hole for water supply to pass through by controlling the relative rotation of two ceramic sheets through a valve rod. During the process of the water passing hole gradually becoming larger when the valve rod rotates, the water output also increases slowly. Although the angle valve can be opened quickly, due to the limited inner cavity space of the valve body of the angle valve, the size of the water passing hole is relatively small, and the water output is very small, so the large-flow effect cannot be achieved.

[0003] In view of this, the designer deeply considered the many deficiencies and inconveniences caused by the imperfect structure design of the above angle valve, and actively studied, improved and tried to develop and design this case. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a slow-opening large-flow angle valve. The valve rod and the movable sliding seat are in threaded connection. By rotating the valve rod to adjust the length of the overlapping position of the threaded connection, the movement of the sealing cover on the movable sliding seat is controlled to open or close the water inlet hole. The speed of controlling the opening and closing of the angle valve by threaded rotation is relatively slow; but when opened, the water inlet hole is fully opened to achieve the large-flow water output effect.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A slow-opening large-flow angle valve includes a valve housing and a water flow control mechanism. The valve housing has an installation cavity for assembling the water flow control mechanism, a water inlet hole, a water outlet hole, and an assembly hole that are respectively communicated with the installation cavity. The water flow control mechanism has a fixed sleeve seat that is threadedly sealed to the assembly hole, a movable sliding seat that is movably assembled in the fixed sleeve seat, a sealing cover that is locked to one end of the movable sliding seat facing the water inlet hole, and a valve rod that is threadedly connected to the other end of the movable sliding seat away from the water inlet hole. The movable sliding seat is provided with an internal threaded hole, and the inner end of the valve rod is provided with an external threaded section that is threadedly connected to the internal threaded hole. The outer end of the valve rod passes through the fixed sleeve seat. By rotating the valve rod, under the cooperation of the internal thread and the external thread, the movable sliding seat moves forward in the fixed sleeve seat to drive the sealing cover to close the water inlet hole or moves backward to drive the sealing cover to open the water inlet hole.

[0007] A stepped hole is provided on one side of the water inlet hole facing the sealing cover. The aperture of the stepped hole is larger than the diameter of the sealing cover, and the diameter of the sealing cover is larger than the aperture of the water inlet hole; the sealing cover abuts against the stepped hole position to seal the water inlet hole.

[0008] The hole wall of the stepped hole extends into the installation cavity.

[0009] The inner hole of the fixed sleeve seat has a first hole part, a second hole part and a third hole part arranged in descending order of aperture. A first step for preventing the movable sliding seat from slipping outwards is formed at the connection between the first hole part and the second hole part, and a second step for preventing the valve stem from slipping outwards is formed at the connection between the second hole part and the third hole part. The valve stem is provided with a top ring that abuts against the second step.

[0010] A circular ring sink and a central sink located at the center of the circular ring sink are provided at one end of the movable sliding seat facing the water inlet hole; the sealing cover has a first circular ring part clamped in the circular ring sink and a second circular ring part abutting against the end face of the movable sliding seat; a screw is locked in the central sink through the second circular ring part and the first circular ring part.

[0011] A recessed ring is provided on the outer wall of the valve stem extending out of the fixed sleeve seat, and a limit opening ring is clamped on the recessed ring; and the diameter of the limit opening ring is larger than the diameter of the outer end of the fixed sleeve.

[0012] A control handle is locked at the outer end of the valve stem.

[0013] A first sealing ring is provided between the outer wall of the movable sliding seat and the inner wall of the fixed sleeve seat; a second sealing ring is provided between the outer wall of the valve stem and the inner wall of the fixed sleeve seat; and a third sealing ring is provided between the outer wall of the fixed sleeve seat and the inner wall of the assembly hole.

[0014] After adopting the above structure, when the angle valve of the present utility model is in use, the valve stem is rotated. When the overlapping position of the internal thread and the external thread gradually becomes longer during the rotation of the valve stem, the movable sliding seat retreats in the fixed sleeve seat (moves towards the valve stem direction), driving the sealing cover away from the water inlet hole, and the water inlet hole can be opened. Water flows from the water inlet hole to the water outlet, achieving the water outlet effect. Moreover, when the water inlet hole is opened, it is fully opened, and the water flow rate reaches the maximum, realizing a large-flow water outlet mode; when the overlapping position of the internal thread and the external thread gradually becomes shorter during the rotation of the valve stem, the movable sliding seat advances in the fixed sleeve seat (moves away from the valve stem direction), driving the sealing cover to block the water inlet hole, and the water inlet hole can be closed, achieving the water shut-off effect; the valve stem and the movable sliding seat of the present utility model are threadedly connected, and the overlapping position length of the threaded connection is adjusted by rotating the valve stem to control the movement of the sealing cover on the movable sliding seat to open or close the water inlet hole. The switching speed of the angle valve controlled by the threaded rotation is relatively slow; but when opened, the water inlet hole is fully opened, achieving a large-flow water outlet effect. Description of the Drawings

[0015] Figure 1 This is a schematic structural diagram of the slow-opening large-flow angle valve of the present utility model;

[0016] Figure 2 This is a front view schematic diagram of the slow-opening large-flow angle valve of the present utility model;

[0017] Figure 3 This is a bottom view schematic diagram of the slow-opening large-flow angle valve of the present utility model;

[0018] Figure 4 is Figure 3 a cross-sectional schematic diagram in the A-A direction in

[0019] Figure 5 an exploded schematic diagram of the slow-opening large-flow angle valve of the present utility model;

[0020] Figure 6 This is a schematic structural diagram of the water flow control mechanism of the slow-opening large-flow angle valve of the present utility model;

[0021] Figure 7 This is a cross-sectional schematic diagram of the water flow control mechanism of the slow-opening large-flow angle valve of the present utility model.

[0022] Symbol Explanation

[0023] Valve housing 1; Water flow control mechanism 2; Installation cavity 11; Water inlet hole 12; Water outlet hole 13; Assembly hole 14; Fixed sleeve seat 21; Movable slide 22; Sealing cover 23; Valve stem 24; Internal thread hole 221; External thread section 241; Step hole 15; First hole part 211; Second hole part 212; Third hole part 213; First step 214; Second step 215; Abutting ring 242; Circular ring sink 222; Central sink 223; First circular ring part 231; Second circular ring part 232; Screw 25; Concave ring 243; Limit opening ring 244; Control handle 3; First sealing ring 41; Second sealing ring 42; Third sealing ring 43. Specific Embodiments

[0024] In order to further explain the technical solution of the present utility model, the present utility model will be elaborated in detail below through specific embodiments.

[0025] Please refer to Figures 1 to 7, the present utility model discloses a slow-opening large-flow angle valve, which includes a valve housing 1 and a water flow control mechanism 2. The valve housing 1 has an installation cavity 11 for assembling the water flow control mechanism 2, and a water inlet hole 12, a water outlet hole 13, and an assembly hole 14 that are respectively communicated with the installation cavity 11. The water flow control mechanism 2 has a fixed sleeve seat 21 threadedly and sealingly connected to the assembly hole 14, a movable slide seat 22 movably assembled within the fixed sleeve seat 21, a sealing cover 23 locked to one end of the movable slide seat 22 facing the water inlet hole 12, and a valve stem 24 threadedly connected to the other end of the movable slide seat 22 away from the water inlet hole 12. The movable slide seat 22 is provided with an internal thread hole 221, and the inner end of the valve stem 24 is provided with an external thread section 241 threadedly connected to the internal thread hole 221. The outer end of the valve stem 24 extends out of the fixed sleeve seat 21. By rotating the valve stem 24, under the cooperation of the internal thread 221 and the external thread 241, the movable slide seat 22 advances within the fixed sleeve seat 21 to drive the sealing cover 23 to close the water inlet hole 12 or retreats to drive the sealing cover 23 to open the water inlet hole 12.

[0026] When the angle valve of the present utility model is in use, rotate the valve stem 24. When the overlapping position of the internal thread 221 and the external thread 241 gradually becomes longer during the rotation of the valve stem 24, the movable slide seat 22 retreats within the fixed sleeve seat 21 (moves towards the valve stem direction) to drive the sealing cover 23 away from the water inlet hole 12, and the water inlet hole 12 can be opened. Water flows from the water inlet hole 12 to the water outlet 13, achieving the water outlet effect. Moreover, when the water inlet hole 12 is opened, it is fully opened, and the water flow rate reaches the maximum, realizing the large-flow water outlet mode. When the overlapping position of the internal thread 221 and the external thread 241 gradually becomes shorter during the rotation of the valve stem 24, the movable slide seat 22 advances within the fixed sleeve seat 21 (moves away from the valve stem direction) to drive the sealing cover 23 to block the water inlet hole 12, and the water inlet hole 12 can be closed, achieving the water shut-off effect. The valve stem 24 and the movable slide seat 22 of the present utility model are threadedly connected. By rotating the valve stem 24 to adjust the length of the overlapping position of the threaded connection, the movement of the sealing cover 23 on the movable slide seat 22 is controlled to open or close the water inlet hole 12. The speed of opening and closing the angle valve by threaded rotation is relatively slow. However, when opened, the water inlet hole is fully opened, achieving the large-flow water outlet effect.

[0027] On the side of the water inlet hole 12 of the present utility model facing the sealing cover 23, a stepped hole 15 is provided. The diameter of the stepped hole 15 is larger than the diameter of the sealing cover 23, and the diameter of the sealing cover 23 is larger than the diameter of the water inlet hole 12. The sealing cover 23 abuts against the stepped hole 15 to seal the water inlet hole 12, enabling the sealing cover 23 to completely seal the water inlet hole and avoiding water leakage.

[0028] The hole wall of the stepped hole 15 of the present utility model extends towards the installation cavity 11. The sealing cover 23 abuts against one side of the stepped hole 15, facilitating the opening or sealing of the angle valve.

[0029] In the present utility model, the inner hole of the fixed sleeve seat 21 has a first hole portion 211, a second hole portion 212, and a third hole portion 213 arranged in descending order of aperture. A first step 214 for preventing the movable slide seat 22 from slipping outwards is formed at the connection between the first hole portion 211 and the second hole portion 212, and a second step 215 for preventing the valve stem 24 from slipping outwards is formed at the connection between the second hole portion 212 and the third hole portion 213. The valve stem 24 is provided with an abutting ring 242 that abuts against the second step 215. During assembly, first lock the sealing cover 23 to the movable slide seat 22, and then threadedly lock the movable slide seat 22 and the valve stem 24. Then insert the valve stem 24 into the fixed sleeve seat 21 from the first hole portion 211 towards the third hole portion 213, and the outer end of the valve stem 24 extends out of the fixed sleeve seat 21, and the movable slide seat 22 is inserted into the first hole portion 211 of the fixed sleeve seat 21. Finally, threadedly lock the fixed sleeve seat 21 to the assembly hole 14 of the valve housing 1, making the assembly more convenient.

[0030] One end of the movable slide seat 22 of the present utility model facing the water inlet hole 12 is provided with a circular ring sink 222 and a central sink hole 223 located at the center of the circular ring sink 222. The sealing cover 23 has a first circular ring portion 231 that is clamped in the circular ring sink 222 and a second circular ring portion 232 that abuts against the end face of the movable slide seat 22. A screw 25 is locked in the central sink hole 223 through the second circular ring portion 232 and the first circular ring portion 231. The locking structure of the movable slide seat 22 and the sealing cover 23 is more firm.

[0031] An indentation ring 243 is provided on the outer wall of the valve stem 24 extending out of the fixed sleeve seat 21, and a limit opening ring 244 is clamped on the indentation ring 243. And the diameter of the limit opening ring 244 is larger than the diameter of the outer end of the fixed sleeve 21. The limit opening ring 244 and the second step 215 can limit the movement of the valve stem 24, so that the valve stem 24 can only drive the movable slide seat 22 to move during rotation, which is convenient for driving the sealing cover 23 to open or close the water inlet hole and controlling the opening and closing of the angle valve.

[0032] A control handle 3 is locked to the outer end of the valve stem 24 of the present utility model. It is convenient to rotate the valve stem 24 through the control handle 3, which is convenient for opening and closing the angle valve.

[0033] A first sealing ring 41 is provided between the outer wall of the movable slide seat 22 and the inner wall of the fixed sleeve seat 21. A second sealing ring 42 is provided between the outer wall of the valve stem 24 and the inner wall of the fixed sleeve seat 21. And a third sealing ring 43 is provided between the outer wall of the fixed sleeve seat 21 and the inner wall of the assembly hole 14. The provision of the first sealing ring 41, the second sealing ring 42, and the third sealing ring 43 makes the sealing effect of the angle valve better.

[0034] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by those of ordinary skill in the art shall be regarded as not departing from the patent scope of the present utility model.

Claims

1. A slow-opening large-flow angle valve, characterized in that: It includes a valve housing and a water flow control mechanism. The valve housing has an installation cavity for assembling the water flow control mechanism, and a water inlet hole, a water outlet hole and an assembly hole respectively communicating with the installation cavity. The water flow control mechanism has a fixed sleeve seat threadedly and sealingly connected to the assembly hole, a movable slide seat movably assembled in the fixed sleeve seat, a sealing cover locked to one end of the movable slide seat facing the water inlet hole, and a valve stem threadedly connected to the other end of the movable slide seat away from the water inlet hole. The movable slide seat is provided with an internal threaded hole, and the inner end of the valve stem is provided with an external threaded section threadedly connected to the internal threaded hole. The outer end of the valve stem penetrates outside the fixed sleeve seat. By rotating the valve stem, under the cooperation of the internal thread and the external thread, the movable slide seat advances in the fixed sleeve seat to drive the sealing cover to close the water inlet hole or retreats to drive the sealing cover to open the water inlet hole.

2. The slow-opening large-flow angle valve according to claim 1, characterized in that: A stepped hole is provided on one side of the water inlet hole facing the sealing cover. The diameter of the stepped hole is larger than the diameter of the sealing cover, and the diameter of the sealing cover is larger than the diameter of the water inlet hole. The sealing cover abuts against the stepped hole position to seal the water inlet hole.

3. The slow-opening large-flow angle valve according to claim 2, characterized in that: The hole wall of the stepped hole extends into the installation cavity.

4. The slow-opening large-flow angle valve according to claim 1, wherein: The inner hole of the fixed sleeve seat has a first hole portion, a second hole portion and a third hole portion arranged in descending order of aperture. A first step for preventing the movable slide seat from slipping outwards is formed at the connection between the first hole portion and the second hole portion. A second step for preventing the valve stem from slipping outwards is formed at the connection between the second hole portion and the third hole portion. The valve stem is provided with an abutting ring abutting against the second step.

5. The slow-opening large-flow angle valve according to claim 1, wherein: One end of the movable slide seat facing the water inlet hole is provided with a circular ring sink and a central sink hole located at the center of the circular ring sink. The sealing cover has a first circular ring portion clamped in the circular ring sink and a second circular ring portion abutting against the end face of the movable slide seat. A screw is locked in the central sink hole through the second circular ring portion and the first circular ring portion.

6. The slow-opening large-flow angle valve according to claim 1, characterized in that: A recessed ring is provided on the outer wall of the valve stem extending outside the fixed sleeve seat. A limit opening ring is clamped on the recessed ring. And the diameter of the limit opening ring is larger than the diameter of the outer end of the fixed sleeve.

7. The slow-opening large-flow angle valve according to claim 1, wherein: A control handle is locked to the outer end of the valve stem.

8. The slow-opening large-flow angle valve according to claim 1, characterized in that: A first sealing ring is provided between the outer wall of the movable slide seat and the inner wall of the fixed sleeve seat. A second sealing ring is provided between the outer wall of the valve stem and the inner wall of the fixed sleeve seat. And a third sealing ring is provided between the outer wall of the fixed sleeve seat and the inner wall of the assembly hole.

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