A ball valve with a check valve core

Abstract

The utility model discloses a ball valve with a check valve core, which relates to the field of valve technology, and comprises a spherical valve shell, a rotating shaft is arranged on the top of the spherical valve shell, and a valve body is arranged at the bottom end of the rotating shaft, a water inlet pipe is arranged on one side of the spherical valve shell, and a water outlet pipe is arranged on the other side of the spherical valve shell, a limiting clamping plate is arranged on the side of the water outlet pipe, and a check assembly is arranged on the side of the limiting clamping plate, and the check assembly comprises a connecting pipe, a fixed plate and a movable plate are arranged inside the connecting pipe, an L-shaped connecting plate is arranged on the side of the fixed plate, and a connecting rod and a telescopic sliding rod are arranged at the bottom of the L-shaped connecting plate. The utility model facilitates the disassembly of the check valve by providing a connecting pipe and a connecting sleeve, connects the water outlet pipe and the limiting clamping plate by the connecting sleeve, and fixes the connecting sleeve by fixing bolts, thereby realizing the fixation of the water outlet pipe and the connecting pipe, completing the installation of the check assembly, and has a simple structure, and is convenient for disassembly and maintenance of the check valve.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a ball valve with a check valve core. Background Art

[0002] As we all know, ball valve is a common valve, which is used to cut off, distribute and change the flow direction of the medium in the pipeline. It has been widely used due to its simple structure and convenient operation. For example, it is widely used in industrial and civil pipelines such as gas and water heating.

[0003] Most of the existing ball valves are fixedly connected to the check valves when in use, and the ball valve and the check valve are arranged adjacent to each other, so as to prevent the backflow of the medium in the pipeline. However, after long-term use, the check valve is easily damaged by the impact of water flow. Therefore, the ball valve and the check valve need to be regularly inspected and maintained. However, the existing check valves are installed inside the pipeline, so the inspection and disassembly of the check valves are not ideal. Therefore, it is necessary to provide a ball valve with a check valve core to solve the problem. Utility Model Content

[0004] The main purpose of the utility model is to provide a ball valve with a check valve core, which can effectively solve the problems in the background technology.

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

[0006] A ball valve with a check valve core, comprising a spherical valve housing, a rotating shaft is arranged on the top of the spherical valve housing, a valve body is arranged on the bottom end of the rotating shaft, a water inlet pipe is arranged on one side of the spherical valve housing, a water outlet pipe is arranged on the other side of the spherical valve housing, a limit clamping plate is arranged on the side of the water outlet pipe, and a check assembly is arranged on the side of the limit clamping plate;

[0007] The non-return assembly comprises a connecting pipe, a fixed plate is arranged inside the connecting pipe, a movable plate is arranged at the bottom of the fixed plate, an L-shaped connecting plate is arranged on the side of the fixed plate, a hinge seat is arranged at the bottom of the L-shaped connecting plate, a connecting rod is arranged in the middle of the hinge seat, and a telescopic sliding rod is arranged at the bottom of the connecting rod;

[0008] A connecting spring is arranged inside the connecting rod, and a limiting slide is arranged at one end of the connecting spring, and the limiting slide is connected to the telescopic slide rod;

[0009] The non-return assembly also includes a connecting sleeve, a mounting ear plate is arranged on one side of the connecting sleeve, a fixing bolt is arranged in the middle of the mounting ear plate, and a sealing ring is arranged inside the connecting sleeve.

[0010] Preferably, the valve body is rotatably connected to the middle of the spherical valve shell, and the valve body is fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to the middle of the top of the spherical valve shell, the water inlet pipe, the water outlet pipe and the valve body are interconnected, and the side of the water outlet pipe away from the spherical valve shell is fixedly connected to a limit clamp plate, and there are multiple limit clamp plates, which are symmetrically distributed on one side of the water outlet pipe, one side of the water inlet pipe and both ends of the connecting pipe.

[0011] Preferably, a limiting groove is provided on one side of the connecting pipe close to the water outlet pipe, and three limiting grooves are evenly distributed on the inner wall of the connecting pipe close to the top. A T-shaped slider is slidably connected inside the limiting groove, and the T-shaped slider is arranged corresponding to the limiting groove. The T-shaped slider is fixedly connected to a fixed plate, and the outer wall of the fixed plate is tightly fitted with the inner wall of the connecting pipe. The fixed plate is semicircularly arranged inside the connecting pipe.

[0012] Preferably, an arc-shaped rotating groove is provided at the bottom of the fixed plate, the fixed plate is rotatably connected to the movable plate, and an arc-shaped surface is provided at the top of the movable plate near the fixed plate, and the outer wall of the arc-shaped surface contacts the inner wall of the arc-shaped rotating groove, the outer wall of the movable plate contacts the inner wall of the connecting pipe, and the movable plate is semicircularly arranged inside the connecting pipe, and a pulling plate is fixedly connected to one side of the fixed plate near the water outlet pipe.

[0013] Preferably, the fixed plate is connected to the L-shaped connecting plate by bolts, and there are four L-shaped connecting plates, which are symmetrically distributed on the side of the fixed plate and the side of the movable plate, and every two L-shaped connecting plates are distributed on the same horizontal line. The L-shaped connecting plate is fixedly connected to the hinge seat, and the hinge seat and the L-shaped connecting plate are correspondingly arranged, and the hinge seat is rotatably connected to the connecting rod.

[0014] Preferably, the end of the connecting rod away from the hinge seat is slidably connected to the telescopic slide rod, and the end of the telescopic slide rod away from the connecting rod is rotatably connected to the middle of the hinge seat on the side of the movable plate, the end of the telescopic slide rod close to the connecting rod is fixedly connected to the limiting slide plate, and the limiting slide plate is slidably connected to the inside of the connecting rod, the top inner wall of the connecting rod is fixedly connected to the connecting spring, and the connecting spring is located between the connecting rod and the limiting slide plate.

[0015] Preferably, there are two connecting sleeves, which are symmetrically distributed at the top and bottom of the limiting clamp plate, and the connecting sleeve is arranged in a semicircular ring shape. The connecting sleeve is fixedly connected to the sealing ring, and the sealing ring is in contact with the outer wall of the limiting clamp plate. The connecting sleeve connects the limiting clamp plate at one end of the water outlet pipe and the limiting clamp plate at one end of the connecting pipe. The connecting sleeve is fixedly connected to the mounting ear plate. There are two mounting ear plates, which are symmetrically distributed at both ends of the mounting ear plate. The middle of the mounting ear plate is connected to the fixing bolt through a thread, and the fixing bolt connects the two connecting sleeves.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The disassembly of the check valve is facilitated by the provided connecting pipe and connecting sleeve. The outlet pipe and the limit clamp are connected by the connecting sleeve, and the connecting sleeve is fixed by the fixing bolt, so as to fix the outlet pipe and the connecting pipe, and complete the installation of the check assembly. The structure is simple, which facilitates the disassembly and maintenance of the check valve and prolongs the service life of the check valve.

[0018] 2. The fixed plate and the movable plate are used to form a check plate for water flow. When water flows from the water inlet pipe into the water outlet pipe, the water flow impacts the movable plate, thereby tilting the movable plate. When the water flows back, the movable plate is limited by the provided connecting rod and the telescopic sliding rod to prevent the water from flowing back into the spherical valve housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall stereogram of the device of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the cross section of the device of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the non-return assembly of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the fixed plate and the movable plate of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure inside the connecting rod of the utility model.

[0024] In the figure: 1. spherical valve housing; 2. rotating shaft; 3. valve body; 4. water inlet pipe; 5. water outlet pipe; 6. limit clamping plate; 7. check assembly; 8. connecting pipe; 9. fixed plate; 10. movable plate; 11. arc surface; 12. arc rotating groove; 13. L-shaped connecting plate; 14. hinge seat; 15. connecting rod; 16. connecting spring; 17. telescopic slide rod; 18. limit slide plate; 19. pulling plate; 20. connecting sleeve; 21. mounting ear plate; 22. fixing bolt; 23. sealing ring; 24. T-shaped slider; 25. limit slide groove. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] See also Figure 1-Figure 5As shown, a ball valve with a check valve core comprises a spherical valve shell 1, a rotating shaft 2 is arranged on the top of the spherical valve shell 1, and a valve body 3 is arranged on the bottom end of the rotating shaft 2, a water inlet pipe 4 is arranged on one side of the spherical valve shell 1, and a water outlet pipe 5 is arranged on the other side of the spherical valve shell 1, a limiting clamping plate 6 is arranged on the side of the water outlet pipe 5, and a check assembly 7 is arranged on the side of the limiting clamping plate 6, the valve body 3 is rotatably connected to the middle of the spherical valve shell 1, and the valve body 3 is fixedly connected to the rotating shaft 2, the rotating shaft 2 is rotatably connected to the middle of the top of the spherical valve shell 1, the water inlet pipe 4, the water outlet pipe 5 and the valve body 3 are interconnected, the side of the water outlet pipe 5 away from the spherical valve shell 1 is fixedly connected to the limiting clamping plate 6, and there are a plurality of limiting clamping plates 6, which are symmetrically distributed on one side of the water outlet pipe 5, one side of the water inlet pipe 4 and both ends of the connecting pipe 8;

[0027] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the check assembly 7 includes a connecting pipe 8, a fixing plate 9 is arranged inside the connecting pipe 8, and a movable plate 10 is arranged at the bottom of the fixing plate 9, an L-shaped connecting plate 13 is arranged on the side of the fixing plate 9, and a hinge seat 14 is arranged at the bottom of the L-shaped connecting plate 13, a connecting rod 15 is arranged in the middle of the hinge seat 14, and a telescopic slide rod 17 is arranged at the bottom of the connecting rod 15, and a limited slide groove 25 is opened on the side of the connecting pipe 8 close to the water outlet pipe 5, and the limited slide groove 25 is evenly distributed on the connecting pipe 8 and the three 8 is on the inner wall near the top, the inner part of the limiting slide groove 25 is slidably connected with a T-shaped slider 24, and the T-shaped slider 24 is arranged correspondingly to the limiting slide groove 25, the T-shaped slider 24 is fixedly connected to the fixed plate 9, and the outer wall of the fixed plate 9 is tightly fitted with the inner wall of the connecting tube 8, the fixed plate 9 is arranged in a semicircular shape inside the connecting tube 8, the bottom of the fixed plate 9 is provided with an arc-shaped rotating groove 12, the fixed plate 9 is rotatably connected with the movable plate 10, and the movable plate 10 is provided with an arc-shaped surface 11 near the top of the fixed plate 9, and the arc-shaped rotating groove 12 is provided at the bottom of the fixed plate 9. The outer wall of the surface 11 contacts the inner wall of the arc-shaped rotating groove 12, the outer wall of the movable plate 10 contacts the inner wall of the connecting pipe 8, and the movable plate 10 is arranged in a semicircular shape inside the connecting pipe 8, and the side of the fixed plate 9 close to the outlet pipe 5 is fixedly connected with a pulling plate 19, and the fixed plate 9 is connected to the L-shaped connecting plate 13 by bolts, and there are four L-shaped connecting plates 13, which are symmetrically distributed on the side of the fixed plate 9 and the side of the movable plate 10, and every two L-shaped connecting plates 13 are distributed on the same horizontal line, and the L-shaped connecting plates 13 is fixedly connected with the hinge seat 14, and the hinge seat 14 is correspondingly arranged with the L-shaped connecting plate 13, and the hinge seat 14 is rotatably connected with the connecting rod 15, and a check for water flow is formed by the arranged fixed plate 9 and the movable plate 10. When the water flows from the water inlet pipe 4 into the inside of the water outlet pipe 5, the water flows to impact the movable plate 10, so that the movable plate 10 is tilted. When the water flows back, the movable plate 10 is limited by the arranged connecting rod 15 and the telescopic slide rod 17, so as to prevent the water from flowing back to the inside of the spherical valve housing 1;

[0028] A connecting spring 16 is provided inside the connecting rod 15, and a limiting slide plate 18 is provided at one end of the connecting spring 16, and the limiting slide plate 18 is connected to the telescopic slide rod 17, and the end of the connecting rod 15 away from the hinge seat 14 is slidably connected to the telescopic slide rod 17, and the end of the telescopic slide rod 17 away from the connecting rod 15 is rotatably connected to the middle of the hinge seat 14 on the side of the movable plate 10, and the end of the telescopic slide rod 17 close to the connecting rod 15 is fixedly connected to the limiting slide plate 18, and the limiting slide plate 18 is slidably connected to the inside of the connecting rod 15, and the top inner wall of the connecting rod 15 is fixedly connected to the connecting spring 16, and the connecting spring 16 is located between the connecting rod 15 and the limiting slide plate 18;

[0029] The check assembly 7 also includes a connecting sleeve 20, a mounting ear plate 21 is provided on one side of the connecting sleeve 20, and a fixing bolt 22 is provided in the middle of the mounting ear plate 21, and a sealing ring 23 is provided inside the connecting sleeve 20. There are two connecting sleeves 20, which are symmetrically distributed at the top and bottom of the limiting card plate 6, and the connecting sleeve 20 is arranged in a semicircular ring shape. The connecting sleeve 20 is fixedly connected to the sealing ring 23, and the sealing ring 23 contacts the outer wall of the limiting card plate 6. The connecting sleeve 20 connects the limiting card plate 6 at one end of the water outlet pipe 5 and the limiting card plate 6 at one end of the connecting pipe 8. The connecting sleeve 20 is fixed to the mounting ear plate 21. Connection, there are two mounting ear plates 21, which are symmetrically distributed at both ends of the mounting ear plates 21. The middle of the mounting ear plates 21 is connected to the fixing bolts 22 through threads, and the fixing bolts 22 connect the two connecting sleeves 20. The connecting pipe 8 and the connecting sleeve 20 are provided to facilitate the disassembly of the check valve. The water outlet pipe 5 and the limit clamping plate 6 are connected through the connecting sleeve 20, and the connecting sleeve 20 is fixed by the fixing bolts 22, so as to realize the fixation of the water outlet pipe 5 and the connecting pipe 8, and complete the installation of the check assembly 7. The structure is simple, the disassembly and maintenance of the check valve are convenient, and the service life of the check valve is extended.

[0030] It should be noted that the utility model is a ball valve with a check valve core. When in use, the fixed plate 9 is rotatably connected with the movable plate 10, the T-shaped slider 24 on the outer wall of the fixed plate 9 is aligned with the limiting slide groove 25 on the side of the connecting pipe 8, and the fixed plate 9 is pushed to make the T-shaped slider 24 slide inside the limiting slide groove 25, thereby completing the limiting installation of the fixed plate 9, and the T-shaped slider 24 is located at one end of the connecting pipe 8 close to the water outlet pipe 5 to prevent water flow impact, and the fixed plate 9 is rushed out from the inside of the limiting slide groove 25, affecting the use of the check valve, and the limiting card plate 6 at one end of the connecting pipe 8 is aligned with the limiting card plate 6 at one end of the water outlet pipe 5. The limiting card plates 6 are fitted together, and the two connecting sleeves 20 are respectively sleeved on the bottom and top of the two limiting card plates 6, and the mounting ear plates 21 on the sides of the two connecting sleeves 20 are connected by fixing bolts 22. The fixing bolts 22 are tightened to make the sealing ring 23 inside the connecting sleeve 20 fit tightly with the outer wall of the limiting card plate 6, thereby realizing the sealing of the connection between the two limiting card plates 6 to prevent leakage during use, thereby completing the connection between the check assembly 7 and the water outlet pipe 5, and the water flow enters the interior of the spherical valve housing 1 from the water inlet pipe 4. The water flow is opened and closed by the set rotating shaft 2 and the valve body 3, and the water flow The water flows out through the outlet pipe 5. When the water flows through the fixed plate 9 and the movable plate 10, pressure is applied to the movable plate 10, so that the arc surface 11 of the movable plate 10 rotates along the arc rotation groove 12 on one side of the bottom of the fixed plate 9. At the same time, the side of the movable plate 10 is connected with the telescopic slide rod 17 and the connecting rod 15 through the hinge seat 14. When the movable plate 10 is tilted, the telescopic slide rod 17 rotates along the hinge seat 14. At the same time, the telescopic slide rod 17 is compressed toward the inside of the connecting rod 15, and one end of the connecting rod 15 rotates along the hinge seat 14 on the side of the fixed plate 9 to prevent jamming. As a result, the angle between the fixed plate 9 and the movable plate 10 is reduced, and a fan-shaped opening is formed between the movable plate 10 and the connecting pipe 8. Because it is convenient for water to flow out, when the flow stops, the pressure applied to the movable plate 10 is reduced, and the connecting spring 16 inside the connecting rod 15 realizes the rebound of the telescopic slide bar 17 and the limiting slide plate 18, so that the telescopic slide bar 17 drives the movable plate 10 back to its original position, so that the movable plate 10 and the fixed plate 9 are horizontally arranged. When the water flows back, the telescopic slide bar 17 and the connecting rod 15 remain in a vertical state, thereby realizing the limitation of the movable plate 10, and effectively realizing the check effect of backflow.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A ball valve with a check valve core, comprising a spherical valve housing (1), characterized in that: A rotating shaft (2) is arranged at the top of the spherical valve housing (1), and a valve body (3) is arranged at the bottom of the rotating shaft (2); a water inlet pipe (4) is arranged on one side of the spherical valve housing (1), and a water outlet pipe (5) is arranged on the other side of the spherical valve housing (1); a limit clamping plate (6) is arranged on the side of the water outlet pipe (5), and a check assembly (7) is arranged on the side of the limit clamping plate (6); The non-return assembly (7) comprises a connecting tube (8), a fixing plate (9) is arranged inside the connecting tube (8), a movable plate (10) is arranged at the bottom of the fixing plate (9), an L-shaped connecting plate (13) is arranged on the side of the fixing plate (9), a hinge seat (14) is arranged at the bottom of the L-shaped connecting plate (13), a connecting rod (15) is arranged in the middle of the hinge seat (14), and a telescopic sliding rod (17) is arranged at the bottom of the connecting rod (15); A connecting spring (16) is arranged inside the connecting rod (15), and a limiting slide plate (18) is arranged at one end of the connecting spring (16), and the limiting slide plate (18) is connected to the telescopic slide rod (17); The non-return assembly (7) further comprises a connecting sleeve (20), a mounting ear plate (21) being provided on one side of the connecting sleeve (20), a fixing bolt (22) being provided in the middle of the mounting ear plate (21), and a sealing ring (23) being provided inside the connecting sleeve (20).

2. A ball valve with a check valve core according to claim 1, characterized in that: The valve body (3) is rotatably connected to the middle of the spherical valve housing (1), and the valve body (3) is fixedly connected to the rotating shaft (2). The rotating shaft (2) is rotatably connected to the middle of the top of the spherical valve housing (1). The water inlet pipe (4), the water outlet pipe (5) and the valve body (3) are interconnected. The side of the water outlet pipe (5) away from the spherical valve housing (1) is fixedly connected to a limit clamping plate (6), and there are a plurality of limit clamping plates (6), which are symmetrically distributed on one side of the water outlet pipe (5), one side of the water inlet pipe (4) and both ends of the connecting pipe (8).

3. A ball valve with a check valve core according to claim 1, characterized in that: A limiting slide groove (25) is provided on one side of the connecting pipe (8) close to the water outlet pipe (5), and the limiting slide grooves (25) are three and are evenly distributed on the inner wall of the connecting pipe (8) close to the top. A T-shaped slider (24) is slidably connected inside the limiting slide groove (25), and the T-shaped slider (24) is arranged corresponding to the limiting slide groove (25). The T-shaped slider (24) is fixedly connected to the fixing plate (9), and the outer wall of the fixing plate (9) is tightly fitted with the inner wall of the connecting pipe (8). The fixing plate (9) is arranged in a semicircular shape inside the connecting pipe (8).

4. A ball valve with a check valve core according to claim 3, characterized in that: The bottom of the fixed plate (9) is provided with an arc-shaped rotating groove (12), the fixed plate (9) is rotatably connected to the movable plate (10), and the movable plate (10) is provided with an arc-shaped surface (11) near the top of the fixed plate (9), and the outer wall of the arc-shaped surface (11) contacts the inner wall of the arc-shaped rotating groove (12), the outer wall of the movable plate (10) contacts the inner wall of the connecting pipe (8), and the movable plate (10) is arranged in a semicircular shape inside the connecting pipe (8), and a pulling plate (19) is fixedly connected to one side of the fixed plate (9) near the water outlet pipe (5).

5. A ball valve with a check valve core according to claim 4, characterized in that: The fixed plate (9) is connected to the L-shaped connecting plate (13) by bolts, and there are four L-shaped connecting plates (13), which are symmetrically distributed on the side of the fixed plate (9) and the side of the movable plate (10), and every two L-shaped connecting plates (13) are distributed on the same horizontal line. The L-shaped connecting plate (13) is fixedly connected to the hinge seat (14), and the hinge seat (14) and the L-shaped connecting plate (13) are correspondingly arranged. The hinge seat (14) is rotatably connected to the connecting rod (15).

6. The ball valve with a check valve core according to claim 1, characterized in that: One end of the connecting rod (15) away from the hinge seat (14) is slidably connected to the telescopic slide rod (17), and the end of the telescopic slide rod (17) away from the connecting rod (15) is rotatably connected to the middle of the hinge seat (14) on the side of the movable plate (10), and one end of the telescopic slide rod (17) close to the connecting rod (15) is fixedly connected to the limiting slide plate (18), and the limiting slide plate (18) is slidably connected to the inside of the connecting rod (15), and the top inner wall of the connecting rod (15) is fixedly connected to the connecting spring (16), and the connecting spring (16) is located between the connecting rod (15) and the limiting slide plate (18).

7. The ball valve with a check valve core according to claim 1, characterized in that: There are two connecting sleeves (20), which are symmetrically distributed at the top and bottom of the limiting card plate (6), and the connecting sleeve (20) is arranged in a semicircular ring shape. The connecting sleeve (20) is fixedly connected to the sealing ring (23), and the sealing ring (23) is in contact with the outer wall of the limiting card plate (6). The connecting sleeve (20) connects the limiting card plate (6) at one end of the water outlet pipe (5) and the limiting card plate (6) at one end of the connecting pipe (8). The connecting sleeve (20) is fixedly connected to the mounting ear plate (21). There are two mounting ear plates (21), which are symmetrically distributed at both ends of the mounting ear plate (21). The middle of the mounting ear plate (21) is connected to the fixing bolt (22) through a thread, and the fixing bolt (22) connects the two connecting sleeves (20).

Images