A ball type one-way check valve

Abstract

The utility model discloses a ball-type one-way check valve, which relates to the technical field of check valves, and comprises: a check valve body, connecting flanges are arranged on both sides of the check valve body, a tube body is fixedly connected to one side of the upper side of the check valve body, a cover body is installed on the upper side of the tube body, a receiving cavity is arranged on the inner wall of the tube body, a connecting rod is slidably connected to the inner wall of the receiving cavity, a telescopic spring is fixedly connected to one end of the connecting rod located inside the receiving cavity, a ball is fixedly connected to one end of the connecting rod away from the telescopic spring, and a receiving groove is arranged on the inner wall of the check valve body. The water flow resistance is reduced by the inclined tube body, so that the water flow can flow into and out of the valve body more smoothly, and automatic opening and closing and effective one-way flow control are realized, and the utility model has excellent stability, reliability and high efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a ball-type one-way stop valve. Background Art

[0002] The ball check valve is a valve that automatically opens and closes using fluid pressure difference. It is used to control the medium to flow in one direction only and prevent reverse flow. It is mainly composed of front and rear valve bodies, a rubber-wrapped ball and a cone.

[0003] Although the traditional ball-type one-way check valve can meet basic usage requirements, its performance and life are often limited under some special working conditions, such as high pressure difference, high flow rate, and medium containing particles. In addition, the maintenance and installation of the traditional design are also relatively complicated, affecting the efficiency and cost control of the project. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a ball-type one-way check valve, which reduces water flow resistance through an inclined tube body so that water can flow into and out of the valve body more smoothly, thereby achieving automatic opening and closing and effective one-way flow control, and has excellent stability, reliability and efficiency.

[0005] The utility model also provides a ball-type one-way check valve as mentioned above, comprising: a check valve body, connecting flanges are provided on both sides of the check valve body, a tube body is fixedly connected to one side of the upper side of the check valve body, a cover body is installed above the tube body, an accommodating cavity is provided on the inner wall of the tube body, a connecting rod is slidably connected to the inner wall of the accommodating cavity, one end of the connecting rod located inside the accommodating cavity is fixedly connected to a telescopic spring, the end of the connecting rod away from the telescopic spring is fixedly connected to a ball, and an accommodating groove is provided on the inner wall of the check valve body.

[0006] According to the ball-type one-way flow-check valve, the tube body is arranged obliquely, and the tube body is connected to the check valve body.

[0007] According to the ball-type one-way flow-check valve, the outer wall of the ball is adapted to the receiving groove, and the outer wall of the ball is adapted to the inner wall of the check valve body.

[0008] According to the ball-type one-way flow-check valve, one side of the connecting flange is threadedly connected with a plurality of fixing bolts, and the plurality of fixing bolts are symmetrically distributed.

[0009] According to the ball-type one-way flow-check valve, a sealing ring is provided on the inner wall of the accommodating groove, and the sealing ring is made of rubber material.

[0010] According to the ball-type one-way flow-check valve, a sealing ring is provided on the inner wall of the accommodating groove, and the outer wall of the connecting rod at one end inside the accommodating cavity is slidably connected to the inner wall of the accommodating cavity.

[0011] The utility model has the following beneficial effects:

[0012] 1. In the present invention, the fluid resistance is reduced by the inclined tube body.

[0013] 2. In the utility model, the outer wall of the sphere is adapted to the inner wall of the check valve body and the receiving groove, thereby ensuring that the check valve body will not leak due to changes in fluid pressure during long-term operation, thereby improving the overall stability and reliability of the system.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 It is a three-dimensional diagram of a ball-type one-way flow-stop valve of the utility model from a front perspective;

[0017] Figure 2 It is a front perspective stereogram of a cross section of a check valve body of a ball-type one-way check valve of the utility model;

[0018] Figure 3 It is a bottom-angle stereoscopic view of the cross section of a check valve body of a ball-type one-way check valve of the utility model;

[0019] Figure 4 This is a structural diagram of a ball-type one-way flow-stop valve from a front view according to the utility model.

[0020] Legend:

[0021] 1. Check valve body; 2. Connecting flange; 3. Tube body; 4. Cover body; 5. Accommodating chamber; 6. Connecting rod; 7. Telescopic spring; 8. Ball; 9. Accommodating groove; 201. Fixing bolt; 901. Sealing ring. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4The utility model embodiment is a ball-type one-way check valve, which includes: a check valve body 1, connecting flanges 2 are arranged on both sides of the check valve body 1, one side of the connecting flange 2 is threadedly connected with a plurality of fixing bolts 201, and the plurality of fixing bolts 201 are symmetrically distributed, a tube body 3 is fixedly connected to one side of the upper side of the check valve body 1, the tube body 3 is inclined, and the tube body 3 is connected to the check valve body 1, a cover body 4 is installed above the tube body 3, an accommodating cavity 5 is arranged on the inner wall of the tube body 3, a connecting rod 6 is slidably connected to the inner wall of the accommodating cavity 5, one end of the connecting rod 6 located inside the accommodating cavity 5 is fixedly connected with a telescopic spring 7, and an end of the connecting rod 6 away from the telescopic spring 7 is fixedly connected with a ball 8, the outer wall of the ball 8 is adapted to the accommodating groove 9, and the outer wall of the ball 8 is adapted to the inner wall of the check valve body 1, the inner wall of the check valve body 1 is provided with an accommodating groove 9, the inner wall of the accommodating groove 9 is provided with a sealing ring 901, and the sealing ring 901 is made of rubber material. The inclined pipe body 3 is used to reduce water flow resistance, so that water can flow into and out of the valve body more smoothly, realizing automatic opening and closing and effective one-way flow control, and having excellent stability, reliability and efficiency.

[0024] Working principle: When in use, the check valve body 1 is installed in the pipeline through the fixing bolts 201 on the connecting flanges 2 on both sides. When the fluid enters the valve from one side of the check valve body 1, the thrust of the fluid will push onto the ball 8. At this time, when the thrust of the fluid on the ball 8 is greater than the elastic force of the telescopic spring 7, the ball 8 will move upward along the connecting rod 6, thereby opening the valve and allowing the fluid to pass through. When the fluid flows in the opposite direction, the thrust of the fluid and the deformation force of the telescopic spring 7 will push the ball 8 to move downward, so that the ball 8 fits tightly to the sealing ring 901 of the receiving groove 9, which can effectively prevent the fluid from flowing further, thereby achieving the purpose of preventing the medium from flowing back.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A ball-type one-way flow-stop valve, comprising: A check valve body (1), characterized in that connecting flanges (2) are provided on both sides of the check valve body (1), a tube body (3) is fixedly connected to one side of the upper side of the check valve body (1), a cover body (4) is installed above the tube body (3), a receiving cavity (5) is provided on the inner wall of the tube body (3), a connecting rod (6) is slidably connected to the inner wall of the receiving cavity (5), one end of the connecting rod (6) located inside the receiving cavity (5) is fixedly connected to a telescopic spring (7), the end of the connecting rod (6) away from the telescopic spring (7) is fixedly connected to a ball (8), and a receiving groove (9) is provided on the inner wall of the check valve body (1).

2. A ball-type one-way check valve according to claim 1, characterized in that: The pipe body (3) is arranged obliquely, and the pipe body (3) is connected to the check valve body (1).

3. A ball-type one-way check valve according to claim 1, characterized in that: The outer wall of the ball (8) is adapted to the receiving groove (9), and the outer wall of the ball (8) is adapted to the inner wall of the check valve body (1).

4. A ball-type one-way check valve according to claim 1, characterized in that: One side of the connection flange (2) is threadedly connected with a plurality of fixing bolts (201), and the plurality of fixing bolts (201) are symmetrically distributed.

5. A ball-type one-way check valve according to claim 1, characterized in that: The inner wall of the containing groove (9) is provided with a sealing ring (901), and the sealing ring (901) is made of rubber material.

6. A ball-type one-way check valve according to claim 1, characterized in that: The outer wall of one end of the connecting rod (6) located inside the accommodating cavity (5) is slidably connected to the inner wall of the accommodating cavity (5).

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