Adjustable ball check valve

Abstract

The invention relates to the technical field of check valves, in particular to an adjustable spherical check valve which comprises a valve shell, a sealing disc, a cover plate and a liquid inlet bent pipe. The top of the valve shell is connected with the sealing disc through a splicing disc C. A guide sleeve is arranged at the axis of the sealing disc in a sleeving mode, and a movable column is arranged in the guide sleeve in a sleeving mode. The two ends of the top of the sealing disc are connected with a cover plate through connecting rods, an adjusting screw rod is installed on the cover plate through a screw hole, the bottom of the adjusting screw rod is sleeved with a bearing, a bearing seat is installed at the bottom end of the bearing, and a supporting spring is arranged between the bearing seat and the movable column. The adjustable spherical check valve adjusts the degree of tightness of extrusion on the supporting spring, so that circulation of the valve body is achieved under different liquid pressures, the use requirement for conveying liquid with different concentrations is met, liquid additives or gas can be conveniently and evenly introduced into the conveyed liquid, mixing is achieved, manpower and material resources are saved, and the use effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of check valves, in particular to an adjustable ball check valve. Background Art

[0002] Ball check valve, also known as reverse flow valve, non-return valve, back pressure valve or one-way valve, is a check valve with multi-ball, multi-channel and multi-cone reverse flow structure. It automatically opens and closes by the force generated by the flow of the medium in the pipeline, without the need for external power. The core function of this valve is to ensure the one-way flow of fluid in the pipeline while avoiding damage caused by reverse flow.

[0003] The existing ball check valve is not convenient for adjusting the tightness of the support spring extrusion to achieve the circulation of the valve body under different liquid pressures to meet the use requirements of liquid transportation with different concentrations. It is not convenient for evenly introducing liquid additives or gases into the transported liquid to achieve mixing. Summary of the invention

[0004] In response to the problems in the prior art, the present invention provides an adjustable ball check valve. The adjustable ball check valve adjusts the tightness of the support spring squeeze, thereby achieving circulation of the valve body under different liquid pressures, meeting the use requirements of liquid transportation of different concentrations, facilitating the uniform introduction of liquid additives or gases into the transported liquid to achieve mixing, saving manpower and material resources, and improving the use effect.

[0005] The technical solution adopted by the present invention to solve the technical problem is an adjustable ball check valve, comprising a valve housing, a sealing disk, a cover plate and a liquid inlet elbow, the top of the valve housing is connected to the sealing disk through a splicing disk C, a guide sleeve is sleeved at the axis of the sealing disk and a moving column is sleeved in the guide sleeve, the top two ends of the sealing disk are connected to the cover plate through a connecting rod, an adjusting screw is installed on the cover plate through a screw hole, a bearing is sleeved on the bottom of the adjusting screw and a bearing seat is installed at the bottom end of the bearing, and a supporting spring is arranged between the bearing seat and the moving column;

[0006] The bottom end of the movable column is connected to the sealing ball through a linkage rod and the sealing ball is located in the valve housing. One side of the valve housing is connected to a liquid outlet elbow. The bottom of the valve housing is connected to a splicing disk A through a splicing disk B and a liquid inlet elbow is provided at the bottom of the splicing disk A. An addition port is provided on one side of the bottom end of the liquid inlet elbow and an addition pipe is installed in the addition port through a positioning hole.

[0007] By adopting the above technical solution, the adjustable ball check valve adjusts the tightness of the support spring squeeze, thereby realizing the circulation of the valve body under different liquid pressures, meeting the use requirements of liquid transportation of different concentrations, facilitating the uniform introduction of liquid additives or gases into the transported liquid to achieve mixing, saving manpower and material resources, and improving the use effect.

[0008] Specifically, the sealing ball is located on one side of the connecting hole between the valve housing and the liquid outlet elbow, and the sealing ball is specifically made of PU material.

[0009] By adopting the above technical solution, the PU material has certain elasticity and toughness, has a significant sealing effect, prevents leakage, and is resistant to acid and alkali corrosion and durable.

[0010] Specifically, one end of the liquid outlet elbow is connected to a liquid outlet connection plate, and the other end of the liquid inlet elbow is connected to a liquid inlet connection plate.

[0011] Specifically, a sealing plug is provided at the bottom of the addition port and the sealing plug is engaged with the bottom end of the addition pipe.

[0012] By adopting the above technical solution, the sealing plug is opened and the liquid additive or gas is evenly introduced into the conveyed liquid through the adding tube to achieve mixing, save manpower and material resources, and improve the use effect.

[0013] Specifically, a conical sealing block is bonded to the bottom of the sealing disk and the conical sealing block is sleeved on the outside of the linkage rod.

[0014] Specifically, a hand wheel is sleeved and fixed on the top of the adjusting screw.

[0015] By adopting the above technical solution, the staff rotates the hand wheel to adjust the tightness of the squeeze on the support spring, thereby achieving the circulation of the valve body under different liquid pressures.

[0016] Specifically, both ends of the support spring are connected to the moving column and the bearing seat respectively through a positioning plate and a positioning bolt.

[0017] Beneficial effects of the present invention:

[0018] (1) The adjustable ball check valve described in the present invention utilizes a liquid inlet connection plate to facilitate connection with a liquid inlet pipe, and utilizes a liquid outlet connection plate to facilitate connection with a liquid outlet pipe. When liquid rapidly flows into the valve housing through the liquid inlet elbow, the sealing ball is pushed upward by the water pressure to overcome the elastic force of the support spring, thereby exposing the connecting hole between the valve housing and the liquid outlet elbow, allowing the liquid to enter the liquid outlet elbow and finally flow into the liquid outlet pipe. When the water flow input into the liquid inlet elbow is small or there is no water flow, the support spring is reset, causing the sealing ball to move downward to one side of the connecting hole between the valve housing and the liquid outlet elbow to achieve sealing, thereby automatically preventing liquid from flowing back.

[0019] (2) With the adjustable ball check valve described in the present invention, the staff rotates the hand wheel to adjust the tightness of the support spring, thereby achieving the circulation of the valve body under different liquid pressures to meet the use requirements of liquid delivery of different concentrations. During the adjustment process, the moving column is moved in the guide sleeve, which greatly improves the stability during movement and reduces shaking. The sealing plug is opened and the addition tube is used to evenly introduce liquid additives or gases into the delivered liquid to achieve mixing, save manpower and material resources, and improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the addition port structure of the present invention;

[0023] Figure 3 For the present invention Figure 1 Schematic diagram of the structure at point A.

[0024] In the figure: 1. hand wheel; 2. cover plate; 3. connecting rod; 4. sealing disk; 5. conical sealing block; 6. linkage rod; 7. sealing ball; 8. liquid outlet elbow; 9. liquid outlet connecting disk; 10. adding tube; 11. liquid inlet elbow; 12. adding port; 13. sealing plug; 14. liquid inlet connecting disk; 15. splicing disk A; 16. splicing disk B; 17. valve housing; 18. splicing disk C; 19. guide sleeve; 20. adjusting screw; 21. bearing; 22. bearing seat; 23. positioning plate; 24. support spring; 25. moving column. 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 explained below in conjunction with specific implementation methods.

[0026] The adjustable ball check valve adjusts the tightness of the squeeze of the support spring 24, thereby realizing the circulation of the valve body under different liquid pressures, meeting the use requirements of liquid delivery with different concentrations, facilitating the uniform introduction of liquid additives or gases into the delivered liquid, achieving mixing, saving manpower and material resources, and improving the use effect, such as Figure 1-3As shown, the adjustable ball check valve of the present invention comprises a valve housing 17, a sealing disc 4, a cover plate 2 and a liquid inlet elbow 11, the top of the valve housing 17 is connected to the sealing disc 4 through a splicing disc C18, a guide sleeve 19 is sleeved at the axis of the sealing disc 4 and a moving column 25 is sleeved in the guide sleeve 19, the top two ends of the sealing disc 4 are connected to the cover plate 2 through a connecting rod 3, an adjusting screw 20 is installed on the cover plate 2 through a screw hole, a bearing 21 is sleeved at the bottom of the adjusting screw 20 and a bearing seat 22 is installed at the bottom end of the bearing 21, and a supporting spring 24 is arranged between the bearing seat 22 and the moving column 25;

[0027] The bottom end of the movable column 25 is connected to the sealing ball 7 through the linkage rod 6, and the sealing ball 7 is located in the valve housing 17. One side of the valve housing 17 is connected to a liquid outlet elbow 8. The bottom of the valve housing 17 is connected to a splicing disk A15 through a splicing disk B16, and a liquid inlet elbow 11 is provided at the bottom of the splicing disk A15. An addition port 12 is provided on one side of the bottom end of the liquid inlet elbow 11, and an addition pipe 10 is installed in the addition port 12 through a positioning hole.

[0028] When in use, the adjustable ball check valve adjusts the tightness of the squeezing of the support spring 24, thereby achieving the circulation of the valve body under different liquid pressures, meeting the use requirements of liquid transportation of different concentrations, facilitating the uniform introduction of liquid additives or gases into the transported liquid to achieve mixing, saving manpower and material resources, and improving the use effect.

[0029] For example, Figure 1 As shown, the present invention also includes that the sealing ball 7 is located at one side of the communication hole between the valve housing 17 and the liquid outlet elbow 8, and the sealing ball 7 is specifically made of PU material.

[0030] When in use, the PU material has certain elasticity and toughness, has a significant sealing effect, prevents leakage, is resistant to acid and alkali corrosion, and is durable.

[0031] For example, Figure 1 As shown, the present invention also includes that one end of the liquid outlet elbow 8 is connected to a liquid outlet connection disk 9, and the other end of the liquid inlet elbow 11 is connected to a liquid inlet connection disk 14.

[0032] When in use, the liquid inlet connection plate 14 is used to facilitate connection of the liquid inlet pipe, and the liquid outlet connection plate 9 is used to facilitate connection of the liquid outlet pipe.

[0033] For example, Figure 1 , 2 As shown, the present invention also includes that a sealing plug 13 is provided at the bottom of the addition port 12 and the sealing plug 13 is engaged with the bottom end of the addition pipe 10 .

[0034] When in use, the sealing plug 13 is opened and the adding tube 10 is used to evenly introduce the liquid additive or gas into the transported liquid to achieve mixing, save manpower and material resources, and improve the use effect.

[0035] For example, Figure 1 As shown, the present invention also includes that a conical sealing block 5 is bonded to the bottom of the sealing disk 4 and the conical sealing block 5 is sleeved on the outside of the linkage rod 6 .

[0036] When in use, the conical sealing block 5 effectively improves the sealing effect between the linkage rod 6 and the sealing disk 4 .

[0037] For example, Figure 1 As shown, the present invention also includes that a hand wheel 1 is sleeved and fixed on the top of the adjusting screw 20 .

[0038] When in use, the staff rotates the hand wheel 1 to adjust the tightness of the squeeze on the support spring 24, so as to achieve the flow of the valve body under different liquid pressures.

[0039] For example, Figure 1 , 3 As shown, the present invention also includes that both ends of the support spring 24 are respectively connected to the moving column 25 and the bearing seat 22 through a positioning plate 23 and a positioning bolt.

[0040] When in use, the support spring 24 is easily installed and removed through the positioning plate 23 and the positioning bolts.

[0041] When the present invention is in use, the inlet connection plate 14 is used to facilitate the connection of the inlet pipe, and the outlet connection plate 9 is used to facilitate the connection of the outlet pipe. When the liquid quickly flows into the valve housing 17 through the inlet elbow 11, under the action of the water flow pressure, the elastic force of the support spring 24 is overcome to push the sealing ball 7 upward to move so that the connecting hole between the valve housing 17 and the outlet elbow 8 is exposed, so that the liquid enters the outlet elbow 8 and finally flows into the outlet pipe.

[0042] When the water flow input by the liquid inlet elbow 11 is small or there is no water flow, the support spring 24 is reset, so that the sealing ball 7 moves downward to the valve housing 17 and the side of the connecting hole of the liquid outlet elbow 8 to achieve sealing, automatically preventing liquid backflow. The staff rotates the hand wheel 1 to adjust the tightness of the squeeze on the support spring 24, so as to achieve the circulation of the valve body under different liquid pressures and meet the use requirements of liquid transportation with different concentrations;

[0043] During the adjustment process, the movable column 25 is moved in the guide sleeve 19, which greatly improves the stability during movement and reduces shaking. The sealing plug 13 is opened and the adding tube 10 is used to evenly introduce the liquid additive or gas into the transported liquid to achieve mixing, save manpower and material resources, and improve the use effect.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. Adjustable ball check valve, characterized in that: The valve comprises a valve housing (17), a sealing disk (4), a cover plate (2) and a liquid inlet elbow (11); the top of the valve housing (17) is connected to the sealing disk (4) via a splicing disk C (18); a guide sleeve (19) is sleeved at the axis of the sealing disk (4) and a movable column (25) is sleeved in the guide sleeve (19); the top two ends of the sealing disk (4) are connected to the cover plate (2) via a connecting rod (3); an adjusting screw (20) is installed on the cover plate (2) via a screw hole; a bearing (21) is sleeved at the bottom of the adjusting screw (20) and a bearing seat (22) is installed at the bottom end of the bearing (21); a supporting spring (24) is provided between the bearing seat (22) and the movable column (25); The bottom end of the movable column (25) is connected to the sealing ball (7) via a linkage rod (6), and the sealing ball (7) is located in the valve housing (17); one side of the valve housing (17) is connected to a liquid outlet elbow (8); the bottom of the valve housing (17) is connected to a splicing plate A (15) via a splicing plate B (16), and a liquid inlet elbow (11) is provided at the bottom of the splicing plate A (15); a filling port (12) is provided at one side of the bottom end of the liquid inlet elbow (11), and an filling pipe (10) is installed in the filling port (12) via a positioning hole.

2. The adjustable ball check valve according to claim 1, characterized in that: The sealing ball (7) is located on one side of the communication hole between the valve housing (17) and the liquid outlet elbow (8), and the sealing ball (7) is specifically made of PU material.

3. The adjustable ball check valve according to claim 1, characterized in that: One end of the liquid outlet elbow (8) is connected to a liquid outlet connection plate (9), and the other end of the liquid inlet elbow (11) is connected to a liquid inlet connection plate (14).

4. The adjustable ball check valve according to claim 1, characterized in that: A sealing plug (13) is provided at the bottom of the addition port (12), and the sealing plug (13) is engaged with the bottom end of the addition pipe (10).

5. The adjustable ball check valve according to claim 1, characterized in that: A conical sealing block (5) is bonded to the bottom of the sealing disk (4), and the conical sealing block (5) is sleeved on the outside of the linkage rod (6).

6. The adjustable ball check valve according to claim 1, characterized in that: A hand wheel (1) is sleeved and fixed on the top of the adjusting screw rod (20).

7. The adjustable ball check valve according to claim 1, characterized in that: Both ends of the support spring (24) are respectively connected to the moving column (25) and the bearing seat (22) through a positioning plate (23) and a positioning bolt.

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