Valve ball with non-return function

Abstract

The utility model relates to the technical field of valve ball bodies, and provides a valve ball body with a non-return function, which comprises a ball body part, a cavity is arranged in the ball body part, a non-return device is arranged in the cavity, and through the arrangement of a water retaining assembly and a shielding assembly, when water flow enters the ball body part through a water inlet hole, the water flow is blocked by the water retaining assembly. When the water flow on one side of the water inlet hole continuously impacts the impact cylinder, the water flow impacts the impact cylinder and extrudes the spring, and the spring shrinks after bearing the maximum elastic property to drive the impact cylinder to move so as to expose the water passing groove, so that the water flow conveniently enters the cavity, is discharged from the water outlet groove and is finally discharged from the water outlet hole; and the impact cylinder is restored under the elastic performance of the spring, the impact cylinder is driven to return to the position of the water passing groove, the non-return function is achieved after the rubber waterproof ring is clamped to the position of the water passing groove, backflow water can return to the interior of the cavity through the backflow hole to be stored, and the non-return function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of valve ball, specifically, relate to a valve ball with check function. BACKGROUND

[0002] Ball valve, opening and closing part (ball) is driven by the valve rod, and rotates around the ball valve axis movement valve. It can also be used for fluid regulation and control, wherein hard sealing V type ball valve its V type ball core and the metal valve seat of hardfacing hard alloy has very strong shearing force, especially suitable for containing fiber, micro solid particles and other media. And multi-pass ball valve can not only be used to control the flow of the medium, but also can be used to close any channel and connect the other two channels. The valve should be generally installed horizontally in the pipeline.

[0003] Through the retrieval, the existing patent (announcement number: CN 218818306 U) discloses a sealing valve ball, although the sealing valve ball, through the ball seat, the center of the ball seat has horizontally arranged flow guide hole and T-shaped groove, the T-shaped groove is arranged vertically with the flow guide hole, the bottom of the T-shaped groove is provided with a rotating shaft which is vertically distributed with the T-shaped groove, the rotating shaft is rotatably installed on the inner side of the ball seat, and the rotating shaft has a slot with a height equal to its radius, the center line of the rotating shaft is coplanar with the bottom surface of the T-shaped groove, the ball seat is provided with a limiting piece for controlling the rotating angle of the rotating shaft, the utility model sets up the rotating shaft in the ball seat, and utilizes the slot on the rotating shaft to cooperate with the valve rod, so that the sliding of the valve rod along the T-shaped groove can be positioned, so as to avoid the relative displacement between the ball seat and the valve rod under the fluid pressure, and the sealing property of the ball seat is affected.

[0004] But in the above scheme, there are still certain deficiencies, because the device lacks the check function, when the water flow impact on one side of the ball is insufficient, backflow phenomenon will appear.

[0005] In view of this, the utility model provides a valve ball with check function. UTILITY MODEL CONTENTS

[0006] The utility model provides a valve ball with check function, solves the problem that the device lacks the check function in the related art, and backflow phenomenon will appear when the water flow impact on one side of the ball is insufficient.

[0007] The utility model discloses a technical scheme as follows: A valve ball with reverse stopping function, including the ball piece, the inside of ball piece is equipped with the cavity, the opposite side of cavity surface is equipped with the water inlet hole and the water outlet hole, the inside of cavity is provided with the reverse stopping device, and the reverse stopping device includes the water blocking subassembly and the sheltering subassembly, the water blocking subassembly includes the sheltering cylinder, the sheltering cylinder is connected with ball piece through the mounting screw ring of screw connection, and the mounting screw ring is placed in the inner wall of water inlet hole, one side of sheltering cylinder is equipped with the thread groove, the water blocking subassembly still includes the connecting cylinder, the connecting cylinder surface is connected in the inner wall of water outlet hole through the sealing ring, and the sealing ring is placed in the inner side of water outlet hole, one side of connecting cylinder is annularly arranged with a plurality of connecting rods, and the equal interval gap between connecting rod is arranged, the inside of water blocking subassembly is provided with the sheltering subassembly.

[0008] Preferably, the other end of the connecting rod is fixedly connected with a blocking cylinder, and a water outlet groove is formed between the blocking cylinder and the connecting cylinder, the water blocking subassembly further includes a water passing groove, and the water passing groove is formed by the gap between the blocking cylinder and the sheltering cylinder, and the blocking cylinder bottom side is provided with a backflow hole.

[0009] Preferably, the sheltering subassembly includes a plurality of fixed rods, and the fixed rods are annularly and equidistantly arranged on the inner wall of the blocking cylinder, and a plurality of the fixed rods are collectively fixed with a bottom sheet, and one side of the bottom sheet is fixedly connected with an expansion rod.

[0010] Preferably, the surface of the expansion rod is provided with a spring, the output end of the expansion rod is fixedly connected with an impact cylinder, the surface of the impact cylinder is fixedly connected with a rubber waterproof ring, and the rubber waterproof ring is blocked in the inside of the backflow hole.

[0011] Preferably, the inside of the rubber waterproof ring is provided with a water flow impact groove, a connecting nail is threadedly inserted in the middle of the water flow impact groove, and the connecting nail is used for connecting the impact cylinder and the expansion rod.

[0012] Preferably, the expansion rod is attached to the inner side wall of the sheltering cylinder, and the rubber waterproof ring is arranged between the impact cylinder and the backflow hole.

[0013] Preferably, the top end of the ball piece is fixedly connected with a valve rod sheet, and the middle of the top surface of the valve rod sheet is fixedly connected with a valve rod connecting block.

[0014] Preferably, the upper end of the valve rod connecting block is fixedly connected with a connecting sheet, and two drill holes are formed in the inside of the connecting sheet.

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

[0016] In the present invention, through the arrangement of the water retaining assembly and the shielding assembly, when water flows into the spherical part through the water inlet hole, the water flow impacts the impact cylinder and squeezes the spring. When the spring is subjected to the maximum elastic performance and contracts, it drives the impact cylinder to move, thereby exposing the water flow groove, making it convenient for water to enter the interior of the cavity, be discharged from the water outlet groove, and finally be discharged from the water outlet hole. When the water flow on one side of the water inlet hole cannot continuously impact the impact cylinder, the impact cylinder is restored by the elastic performance of the spring, driving the impact cylinder to return to the water flow groove position, and the rubber waterproof ring is clamped in the position of the water flow groove to perform the anti-return function. The backflow water will return to the interior of the cavity through the reflux hole for storage, forming a anti-return function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Fig. 1 This is a schematic diagram of the valve ball structure with a non-return function proposed by the utility model;

[0019] Fig. 2 This is a schematic diagram of the structure proposed by the utility model;

[0020] Fig. 3 This is a schematic diagram of the structure proposed by the utility model;

[0021] Fig. 4 This is a schematic structural diagram of the utility model.

[0022] In the figure: 1. spherical part; 2. cavity; 3. water retaining assembly; 301. shielding tube; 302. connecting tube; 303. connecting rod; 304. water outlet groove; 305. blocking tube; 306. water flow groove; 307. return hole; 4. mounting threaded ring; 5. threaded groove; 6. sealing ring; 7. water inlet hole; 8. shielding assembly; 801. fixing rod; 802. bottom plate; 803. telescopic rod; 804. spring; 805. impact tube; 806. rubber waterproof ring; 807. water flow impact groove; 808. connecting nail; 9. water outlet; 10. valve stem piece; 11. valve stem connecting block; 12. connecting piece. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The present application embodiment discloses a valve ball with a check function. Figs. 1 to 4, including: the spherical part 1, by the setting of the spherical part 1, in use, can achieve the effect of internally opening cavity 2, the spherical part 1 is internally provided with cavity 2, by the setting of the cavity 2, in use, can achieve the effect of internally placing the water retaining assembly 3 and the shielding assembly 8, the surface of the cavity 2 is provided with water inlet hole 7 on the opposite side, by the setting of the water inlet hole 7 and the water outlet hole 9, in use, can achieve the effect of facilitating water flow, water outlet hole 9, the inside of the cavity 2 is provided with check device, check device includes water retaining assembly 3, by the setting of the water retaining assembly 3, in use, can achieve the effect of cooperating with the shielding assembly 8 to achieve the function of check, shielding assembly 8, by the setting of the shielding assembly 8, in use, can achieve the effect of blocking water flow, water retaining assembly 3 includes shielding cylinder 301, by the setting of the shielding cylinder 301, in use, can achieve the effect of facilitating water flow through the inside, shielding cylinder 301 is connected with the spherical part 1 through the threaded connection of mounting thread ring 4, and the mounting thread ring 4 is arranged on the inner wall of the water inlet hole 7, one side of the shielding cylinder 301 is provided with thread groove 5, by the setting of the thread groove 5, in use, can achieve the effect of facilitating the installation of the shielding cylinder 301 inside the water inlet hole 7, water retaining assembly 3 also includes connecting cylinder 302, by the setting of the connecting cylinder 302, in use, can achieve the effect of being installed inside the water outlet hole 9, the surface of the connecting cylinder 302 is connected with the inner wall of the water outlet hole 9 through the sealing ring 6, and the sealing ring 6 is arranged on the inner side of the valve stem piece 10, one side of the connecting cylinder 302 is annularly and equidistantly provided with a plurality of connecting rods 303, by the setting of the connecting rods 303, in use, can achieve the effect of isolating the connecting cylinder 302 and the water outlet groove 304 between, and the equidistant gap between the connecting rods 303 is provided as the water outlet groove 304, by the setting of the water outlet groove 304, in use, can achieve the effect of facilitating water flow, the inside of the water retaining assembly 3 is provided with the shielding assembly 8, by the setting of the shielding assembly 8, in use, can achieve the effect of cooperating with the water retaining assembly 3 to perform the function of check.

[0025] The other end of the connecting rod 303 is fixedly connected with the blocking cylinder 305, by the setting of the blocking cylinder 305, in use, can achieve the effect of facilitating the sliding of the impact cylinder 805 inside, and the blocking cylinder 305 and the connecting cylinder 302 form the water outlet groove 304, the water retaining assembly 3 also includes water passing groove 306, by the setting of the water passing groove 306, in use, can achieve the effect of facilitating water flow, and the water passing groove 306 is formed by the gap between the shielding cylinder 301 and the blocking cylinder 305, the bottom side of the blocking cylinder 305 is provided with backflow hole 307, by the setting of the backflow hole 307, in use, can achieve the effect of storing the backflow liquid inside the cavity 2.

[0026] The shielding assembly 8 comprises a plurality of fixed rods 801, which are arranged to fix the telescopic rod 803 inside the blocking cylinder 305 during use, and are arranged in a ring shape at equal intervals on the inner wall of the blocking cylinder 305. A plurality of fixed rods 801 are collectively fixed with a bottom sheet 802, which is arranged to fix the telescopic rod 803 during use. One side of the bottom sheet 802 is fixedly connected with the telescopic rod 803, which is arranged to facilitate the movement of the impact cylinder 805 during use.

[0027] The surface of the telescopic rod 803 is provided with a spring 804, which is arranged to return the impact cylinder 805 to the previous position during use. The output end of the telescopic rod 803 is fixedly connected with the impact cylinder 805, which is arranged to fill the position of the water channel 306 during use, thereby forming a water isolation device and facilitating water impact.

[0028] The surface of the impact cylinder 805 is fixedly connected with a rubber waterproof ring 806, which is arranged to fill between the blocking cylinder 305 and the impact cylinder 805 during use, thereby isolating the water flow. The rubber waterproof ring 806 is blocked inside the backflow hole 307.

[0029] The inside of the rubber waterproof ring 806 is provided with a water impact groove 807, which is arranged to increase the water impact area during use. The middle part of the water impact groove 807 is screwedly connected with a connecting nail 808, which is used to connect the impact cylinder 805 and the telescopic rod 803.

[0030] The telescopic rod 803 is attached to the inner wall of the shielding cylinder 301, and the rubber waterproof ring 806 is arranged between the impact cylinder 805 and the backflow hole 307.

[0031] The top end of the ball member 1 is fixedly connected with a valve rod sheet 10, which is arranged to facilitate the connection of the valve rod during use. The top surface of the valve rod sheet 10 is fixedly connected with a valve rod connecting block 11, which is arranged to facilitate the clamping connection of the valve rod.

[0032] Working principle and use flow: when water flow enters the ball member 1 through the water inlet hole 7, the water flow impacts the impact cylinder 805, and the spring 804 is extruded, when the spring 804 is subjected to the maximum elastic property, the spring 804 is retracted, drives the impact cylinder 805 to move and exposes the water passing groove 306, facilitates the water flow to enter the inside of the cavity 2, is discharged from the water outlet groove 304, and finally is discharged from the water outlet hole 9, when the water flow on one side of the water inlet hole 7 cannot continuously impact the impact cylinder 805, the impact cylinder 805 is restored by the elastic property of the spring 804, drives the impact cylinder 805 to return to the position of the water passing groove 306, and the reverse function is performed after the rubber waterproof ring 806 is clamped in the position of the water passing groove 306, the backflow water returns to the inside of the cavity 2 and is stored through the backflow hole 307.

[0033] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A valve ball with a check function, comprising: A spherical member (1) is characterized in that a cavity (2) is provided inside the spherical member (1), a water inlet hole (7) and a water outlet hole (9) are provided on opposite sides of the surface of the cavity (2), a backflow prevention device is provided inside the cavity (2), the backflow prevention device comprises a water retaining assembly (3) and a shielding assembly (8), the water retaining assembly (3) comprises a shielding cylinder (301), the shielding cylinder (301) is connected to the spherical member (1) via a threaded mounting thread ring (4), and the mounting thread ring (4) is arranged on the inner wall of the water inlet hole (7) A threaded groove (5) is provided on one side of the shielding tube (301). The water retaining assembly (3) further comprises a connecting tube (302). The surface of the connecting tube (302) is connected to the inner wall of the water outlet hole (9) via a sealing ring (6), and the sealing ring (6) is arranged on the inner side of the water outlet hole (9). A plurality of connecting rods (303) are arranged in an annular and equidistant manner on one side of the connecting tube (302), and equidistant gaps between the connecting rods (303) are set as (304). A shielding assembly (8) is provided inside the water retaining assembly (3).

2. A valve ball with a check function according to claim 1, characterized in that: The other end of the connecting rod (303) is fixedly connected to a blocking cylinder (305), and a water outlet groove (304) is formed between the blocking cylinder (305) and the connecting cylinder (302). The water blocking assembly (3) also includes a water flow groove (306), and the water flow groove (306) is formed by the gap between the shielding cylinder (301) and the blocking cylinder (305). A return hole (307) is provided on the bottom side of the blocking cylinder (305).

3. The valve ball with a non-return function according to claim 1, characterized in that: The shielding assembly (8) comprises a plurality of fixing rods (801), and the fixing rods (801) are distributed in an annular shape and at equal intervals on the inner wall of the blocking cylinder (305). The plurality of fixing rods (801) are jointly fixed with a bottom film (802), and one side of the bottom film (802) is fixedly connected with a telescopic rod (803).

4. The valve ball with a non-return function according to claim 3, characterized in that: A spring (804) is provided on the surface of the telescopic rod (803), an impact cylinder (805) is fixedly connected to the output end of the telescopic rod (803), a rubber waterproof ring (806) is fixedly connected to the surface of the impact cylinder (805), and the rubber waterproof ring (806) is blocked inside the reflux hole (307).

5. The valve ball with a non-return function according to claim 4, characterized in that: A water impact groove (807) is provided inside the rubber waterproof ring (806), and a connecting nail (808) is threadedly inserted into the middle of the water impact groove (807). The connecting nail (808) is used to connect the impact cylinder (805) and the telescopic rod (803).

6. The valve ball with a non-return function according to claim 5, characterized in that: The telescopic rod (803) is fitted into the inner wall of the shielding tube (301), and the rubber waterproof ring (806) is arranged between the impact tube (805) and the return hole (307).

7. The valve ball with a check function according to claim 1, characterized in that: The top end of the spherical member (1) is fixedly connected to a valve stem piece (10), and the middle portion of the top surface of the valve stem piece (10) is fixedly connected to a valve stem connecting block (11).

8. The valve ball with a non-return function according to claim 7, characterized in that: The upper end of the valve stem connecting block (11) is fixedly connected to a connecting piece (12), and two holes are drilled inside the connecting piece (12).

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