One-way valve with good non-return effect

Abstract

The utility model relates to the technical field of one-way valves, and discloses a one-way valve with a good non-return effect, which comprises a hexagonal rotating shaft, a valve casing component is arranged on the right side of the hexagonal rotating shaft, an inlet pipe is fixedly connected to the top end of the valve casing component, and a limit ring is movably connected to an inner ring of an inlet at the left end of the valve casing component. And a rotating assembly is fixedly connected to the axis of the right side of the hexagonal rotating shaft, the left end of the outer side of the rotating assembly penetrates through the axis of the inner side of the limiting ring, and an axis rod is fixedly connected to the axis of the right end of the rotating assembly. Through the matched design of the rotating assembly, the lock shaft assembly, the piston assembly and the clamping groove assembly, the one-way non-return function can be efficiently achieved, when fluid flows in in the forward direction, the rotating assembly can be pushed to rotate through fluid pressure, then the lock shaft assembly and the piston assembly are driven to act and separated from the clamping groove assembly, and it is guaranteed that the fluid passes through smoothly; the resistance of forward flow is effectively reduced, and the circulation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of one-way technology, specifically a one-way valve with good check valve effect. Background Technology

[0002] In many industrial and civil fluid transport systems, check valves play a crucial role, and their performance directly affects the stability, safety, and operating efficiency of the entire system.

[0003] When fluid tends to flow in the opposite direction, the sealing structure of some check valves only has a single layer of protection, which is not tight enough. After the valve is closed, leakage can still easily occur in the sealing structure and the inner wall of the valve body, which cannot effectively prevent fluid backflow. Once fluid backflow occurs, it will not only affect the normal operation of the system and may damage the equipment, but also damage the pump impeller, corrode the inner wall protective layer of the pipeline due to the impact of the backflowing fluid and the erosion of impurities, and even cause the failure of key components. Utility Model Content

[0004] The purpose of this invention is to solve the problem that some check valves, when the fluid shows a tendency to flow backward, are prone to leakage after the valve is closed due to the single-layer protection of the sealing structure and the poor sealing effect. This invention provides a check valve with good backflow prevention effect.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A one-way valve with good check valve effect includes a hexagonal shaft. A valve housing assembly is disposed on the right side of the hexagonal shaft. An inlet pipe is fixedly connected to the top of the valve housing assembly. A limit ring is movably connected to the inner ring of the left inlet of the valve housing assembly. A rotating assembly is fixedly connected to the right axis of the hexagonal shaft. The outer left end of the rotating assembly passes through the inner axis of the limit ring. A shaft rod is fixedly connected to the right axis of the rotating assembly. A locking shaft assembly and a piston assembly are sleeved on the outer side of the shaft rod. The inner axis of the locking shaft assembly is fixedly connected to the outer side of the shaft rod. The outer right end of the shaft rod is rotatably connected to the axis of the piston assembly. A slot assembly is disposed on the inner right end of the valve housing assembly. The slot assembly includes a movable toothed slot and a fixed toothed slot. The right end of the movable toothed slot and the left end of the fixed toothed slot are rotatably connected. The outer sides of the locking shaft assembly and the piston assembly are engaged with the side wall of the slot assembly.

[0007] Furthermore, the valve housing assembly includes an inlet area, a housing body, and an outlet pipe. The right end of the inlet area is fixedly connected to the left end of the housing body, the left side of the outlet pipe is fixedly connected to the right end of the housing body, and the bottom end of the inlet pipe is fixedly connected to the top end of the housing body. Fluid flows into the valve housing assembly from the inlet pipe and flows out through the outlet pipe.

[0008] Furthermore, the rotating assembly includes a spiral, a straight rod, and a turntable. The left end of the spiral is fixedly connected to the right axis of the hexagonal shaft, and the left end of the straight rod is fixedly connected to the left axis of the turntable. The hexagonal shaft drives the rotating assembly to rotate, and the sidewall of the spiral rotates at the axis of the limiting ring, which facilitates the movement of the turntable from left to right.

[0009] Furthermore, the locking shaft assembly includes a fixed block and a gear one. The outer side of the shaft rod passes through the fixed block and the shaft center of the gear one. The left end of the gear one is fixedly connected to the right side of the rotating assembly, and the right side of the gear one is rotatably connected to the left side of the piston assembly. Since the outer side of the locking shaft assembly is located at the movable tooth groove, and the movable tooth groove rotates between the fixed tooth groove and the fixed tooth groove, the outer side of the movable tooth groove is rotatably connected to the right end of the inner side of the valve body assembly.

[0010] Furthermore, the fixing block extends laterally through and is fixedly connected to the shaft of the first gear. The rotating assembly drives the shaft rod and the locking assembly to rotate, and the fixing block and the first gear rotate together with the shaft rod.

[0011] Furthermore, the piston assembly includes a movable plug, a sliding groove, and a slider. The left side of the movable plug is movably connected to the right side of the locking shaft assembly. The outer right end of the shaft rod passes through the axis of the movable plug. The slider is fixedly connected to the outer right end of the shaft rod. The movable plug inside the piston assembly is engaged at a fixed toothed groove, and the slider slides together with the shaft rod at the sliding groove, which can limit the rotation angle of the shaft rod.

[0012] Furthermore, the groove is located at the axis of the movable plug, and the sidewall of the slider is slidably connected to the groove.

[0013] Furthermore, the movable toothed groove and the fixed toothed groove are disposed on the inner right side of the valve housing assembly. The fixed toothed groove is fixedly connected to the inner side of the valve housing assembly, and the outer side of the movable toothed groove is rotatably connected to the inner side of the valve housing assembly. When the locking shaft assembly and the movable toothed groove rotate together, the toothed grooves of the movable toothed groove and the fixed toothed groove can be misaligned.

[0014] Compared with the prior art, this utility model provides a one-way valve with good check valve effect, which has the following beneficial effects:

[0015] This highly effective check valve, through the coordinated design of a rotating assembly, a locking shaft assembly, a piston assembly, and a slot assembly, efficiently achieves a one-way check function. When fluid flows in the forward direction, the fluid pressure drives the rotating assembly to rotate, which in turn drives the locking shaft assembly and the piston assembly to disengage from the slot assembly, ensuring smooth fluid flow and effectively reducing the resistance to forward flow and improving flow efficiency. When the fluid tends to flow in the reverse direction, the locking shaft assembly and the piston assembly can quickly engage with the slot assembly under structural action. The tight meshing of the movable and fixed toothed slots forms a reliable barrier, greatly enhancing the check effect and effectively preventing fluid backflow. Attached Figure Description

[0016] Figure 1 The left side shows the overall structure of this utility model in a three-dimensional view.

[0017] Figure 2 This is a three-dimensional view of the right side of the overall outer valve housing assembly of this utility model;

[0018] Figure 3 This is a three-dimensional cross-sectional view of the overall internal structure of this utility model;

[0019] Figure 4 This is a three-dimensional view showing the connection relationship between the rotating assembly and the locking shaft assembly in this utility model.

[0020] Figure 5 A three-dimensional diagram showing the positional relationship between the rotating component and the slot in this utility model;

[0021] Figure 6 This is an exploded three-dimensional view of the internal and external structure of this utility model;

[0022] Figure 7 For practical purposes Figure 4 A magnified view of the piston assembly structure in Figure A.

[0023] In the diagram: 1. Hexagonal shaft; 2. Valve housing assembly; 21. Inlet area; 22. Housing body; 23. Outlet pipe; 3. Inlet pipe; 4. Limiting ring; 5. Rotating assembly; 51. Spiral pattern; 52. Straight rod; 53. Turntable; 6. Shaft rod; 7. Locking shaft assembly; 71. Fixing block; 72. Gear 1; 8. Piston assembly; 81. Movable plug; 82. Slide groove; 83. Slider; 9. Slot assembly; 91. Movable toothed slot; 92. Fixed toothed slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1:

[0025] like Figures 1-7 As shown, a one-way valve with good check valve effect includes a hexagonal shaft 1, a valve housing assembly 2 is provided on the right side of the hexagonal shaft 1, an inlet pipe 3 is fixedly connected to the top of the valve housing assembly 2, a limit ring 4 is movably connected to the inner ring of the left inlet of the valve housing assembly 2, a rotating assembly 5 is fixedly connected to the right axis of the hexagonal shaft 1, the outer left end of the rotating assembly 5 passes through the inner axis of the limit ring 4, a shaft rod 6 is fixedly connected to the right axis of the rotating assembly 5, a locking shaft assembly 7 and a piston assembly 8 are sleeved on the outer side of the shaft rod 6, the inner axis of the locking shaft assembly 7 and the outer side of the shaft rod 6 are fixedly connected, the outer right end of the shaft rod 6 is rotatably connected to the axis of the piston assembly 8, a slot assembly 9 is provided on the inner right end of the valve housing assembly 2, and the outer sides of the locking shaft assembly 7 and the piston assembly 8 are engaged with the side wall of the slot assembly 9.

[0026] like Figures 1-2 As shown, the valve housing assembly 2 includes an inlet area 21, a housing body 22, and an outlet pipe 23. The right end of the inlet area 21 is fixedly connected to the left end of the housing body 22, the left side of the outlet pipe 23 is fixedly connected to the right end of the housing body 22, and the bottom end of the inlet pipe 3 is fixedly connected to the top end of the housing body 22. Fluid flows into the valve housing assembly 2 from the inlet pipe 3 and flows out through the outlet pipe 23.

[0027] like Figure 5 As shown, the rotating assembly 5 includes a spiral 51, a straight rod 52, and a turntable 53. The left end of the spiral 51 is fixedly connected to the right axis of the hexagonal shaft 1, and the left end of the straight rod 52 is fixedly connected to the left axis of the turntable 53. The hexagonal shaft 1 drives the rotating assembly 5 to rotate, and the side wall of the spiral 51 rotates at the axis of the limiting ring 4, which can facilitate the movement of the turntable 53 from left to right.

[0028] like Figure 4 As shown, the locking shaft assembly 7 includes a fixing block 71 and a gear 72. The outer side of the shaft rod 6 passes through the fixing block 71 and the shaft of the gear 72. The left end of the gear 72 is fixedly connected to the right side of the rotating assembly 5, and the right side of the gear 72 is rotatably connected to the left side of the piston assembly 8. The fixing block 71 passes through laterally and is fixedly connected to the shaft of the gear 72. The rotating assembly 5 drives the shaft rod 6 and the locking shaft assembly 7 to rotate, and the fixing block 71 and the gear 72 rotate together with the shaft rod 6. Example 2:

[0029] like Figure 7 As shown, the piston assembly 8 includes a movable plug 81, a slide groove 82, and a slider 83. The left side of the movable plug 81 is movably connected to the right side of the locking shaft assembly 7. The outer right end of the shaft rod 6 passes through the shaft center of the movable plug 81. The slider 83 is fixedly connected to the outer right end of the shaft rod 6. The slide groove 82 is located at the shaft center of the movable plug 81. The side wall of the slider 83 is slidably connected to the slide groove 82. The movable plug 81 inside the piston assembly 8 is engaged at the fixed toothed groove 92. The slider 83 slides together with the shaft rod 6 at the slide groove 82, which can limit the rotation angle of the shaft rod 6.

[0030] like Figure 5 As shown, the slot assembly 9 includes a movable toothed slot 91 and a fixed toothed slot 92. The right end of the movable toothed slot 91 and the left end of the fixed toothed slot 92 are rotatably connected. The movable toothed slot 91 and the fixed toothed slot 92 are located on the inside right side of the valve housing assembly 2. The fixed toothed slot 92 is fixedly connected to the inside of the valve housing assembly 2, and the outside of the movable toothed slot 91 is rotatably connected to the inside of the valve housing assembly 2. The movable toothed slot 91 and the fixed toothed slot 92 rotate with each other. The outside of the movable toothed slot 91 is rotatably connected to the right end of the inside of the valve housing assembly 2. Therefore, when the locking shaft assembly 7 and the movable toothed slot 91 rotate together, the teeth of the movable toothed slot 91 and the fixed toothed slot 92 can be misaligned.

[0031] Working principle: such as Figures 1-7 As shown, when fluid flows into the valve body assembly 2 from the inlet pipe 3, it flows out through the outlet pipe 23;

[0032] Rotate the side wall of the hexagonal shaft 1. The side of the hexagonal shaft 1 is arc-shaped, which makes it easy for the operator to twist it with their fingers. The hexagonal shaft 1 drives the rotating component 5 to rotate. The side wall of the spiral 51 rotates at the axis of the limiting ring 4, which makes it easy to push the turntable 53 from left to right.

[0033] As the rotating component 5 rotates, the locking shaft component 7 rotates to the right as a whole;

[0034] Simultaneously, the piston assembly 8 is also pushed to the right. The locking shaft assembly 7 and the piston assembly 8 slide to the inside of the slot assembly 9 until the outer side of the locking shaft assembly 7 is delivered to the movable toothed slot 91 and the outer side of the piston assembly 8 is delivered to the fixed toothed slot 92. Then, the hexagonal shaft 1 is rotated. The hexagonal shaft 1 rotates in the inner ring of the limiting ring 4, thereby driving the rotating assembly 5 to rotate. The rotating assembly 5 drives the shaft rod 6 and the locking shaft assembly 7 to rotate. The fixed block 71 and the gear 72 rotate together with the shaft rod 6. The movable plug 81 inside the piston assembly 8 is engaged at the fixed toothed slot 92. The slider 83 slides together with the shaft rod 6 at the slide groove 82, which can limit the rotation angle of the shaft rod 6.

[0035] Since the outer side of the locking shaft assembly 7 is located at the movable tooth groove 91, and the movable tooth groove 91 and the fixed tooth groove 92 rotate between each other, and the outer side of the movable tooth groove 91 is rotatably connected to the right end of the inner side of the valve body assembly 2, when the locking shaft assembly 7 and the movable tooth groove 91 rotate together, the tooth grooves of the movable tooth groove 91 and the fixed tooth groove 92 can be misaligned, which can increase the sealing effect, thereby preventing the backflow of fluid and achieving a good check valve effect.

Claims

1. A one-way valve with good non-return effect, comprising a hexagonal rotating shaft (1), characterized in that: The right side of the hexagonal rotating shaft (1) is provided with a valve shell assembly (2), the top end of the valve shell assembly (2) is fixedly connected with an inlet pipe (3), the left end inlet inner ring of the valve shell assembly (2) is movably connected with a limiting ring (4), the right side shaft center of the hexagonal rotating shaft (1) is fixedly connected with a rotating assembly (5), the outer side left end of the rotating assembly (5) penetrates the inner side shaft center of the limiting ring (4), the right end shaft center of the rotating assembly (5) is fixedly connected with a shaft center rod (6), the outer side of the shaft center rod (6) is sleeved with a lock shaft assembly (7) and a piston assembly (8). The inner side shaft center of the lock shaft assembly (7) is fixedly connected with the outer side of the shaft center rod (6), the right end outer side of the shaft center rod (6) is rotatably connected with the shaft center of the piston assembly (8), the inner side right end of the valve shell assembly (2) is provided with a clamping groove assembly (9). The clamping groove assembly (9) comprises a movable tooth-shaped clamping groove (91) and a fixed tooth-shaped clamping groove (92), the right end of the movable tooth-shaped clamping groove (91) is rotatably connected with the left end of the fixed tooth-shaped clamping groove (92), the outer sides of the lock shaft assembly (7) and the piston assembly (8) are clamped on the side wall of the clamping groove assembly (9).

2. The one-way valve with good non-return effect according to claim 1, characterized in that: The valve shell assembly (2) comprises an inlet area (21), a shell body (22) and an outlet pipe (23), the right end of the inlet area (21) is fixedly connected with the left end of the shell body (22), the left side of the outlet pipe (23) is fixedly connected with the right end of the shell body (22), the bottom end of the inlet pipe (3) is fixedly connected with the top end of the shell body (22).

3. The one-way valve with good non-return effect according to claim 1, characterized in that: The rotating assembly (5) comprises a spiral thread (51), a straight rod (52) and a rotating disc (53), the left end of the spiral thread (51) is fixedly connected with the right side shaft center of the hexagonal rotating shaft (1), the left end of the straight rod (52) is fixedly connected with the left side shaft center of the rotating disc (53).

4. The one-way valve with good non-return effect according to claim 1, characterized in that: The lock shaft assembly (7) comprises a fixed block (71) and a gear one (72), the outer side of the shaft center rod (6) penetrates the shaft centers of the fixed block (71) and the gear one (72), the left end of the gear one (72) is fixedly connected with the right side of the rotating assembly (5), the right side of the gear one (72) is rotatably connected with the left side of the piston assembly (8).

5. The one-way valve with good non-return effect according to claim 4, characterized in that: The fixed block (71) transversely penetrates and is fixedly connected with the shaft center of the gear one (72).

6. The one-way valve with good non-return effect according to claim 1, characterized in that: The piston assembly (8) comprises a movable plug (81), a sliding groove (82) and a sliding block (83), the left side of the movable plug (81) is movably connected with the right side of the lock shaft assembly (7), the outer side right end of the shaft center rod (6) penetrates the shaft center of the movable plug (81), the sliding block (83) is fixedly connected with the outer side right end of the shaft center rod (6).

7. The one-way valve with good non-return effect according to claim 6, characterized in that: The sliding groove (82) is arranged at the shaft center of the movable plug (81), and the side wall of the sliding block (83) is slidingly connected with the sliding groove (82).

8. The one-way valve with good non-return effect according to claim 1, characterized in that: The movable tooth-shaped clamping groove (91) and the fixed tooth-shaped clamping groove (92) are arranged on the inner right side of the valve housing assembly (2), the fixed tooth-shaped clamping groove (92) is fixedly connected to the inner side of the valve housing assembly (2), and the outer side of the movable tooth-shaped clamping groove (91) is rotatably connected to the inner side of the valve housing assembly (2).

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