One-way valve with good sealing performance

Abstract

The one-way valve with the good sealing performance comprises a shell, a liquid outlet pipe is fixedly connected to the bottom of the shell, a partition plate is fixedly connected to the lower end of an inner cavity of the shell, first flow guide holes are formed in the two ends of the partition plate, and an I-shaped sealing disc is movably connected between the two sides of the partition plate. Second flow guide holes are formed in the two ends of the I-shaped sealing disc. Through the arrangement of the sealing seat, the liquid inlet pipe, the fixing disc, the supporting spring, the fixing sleeve, the guide block, the guide groove, the vertical shaft, the I-shaped sealing disc, the second flow guide hole, the partition plate and the first flow guide hole, fluid can flow from the liquid inlet pipe to the liquid outlet pipe in a one-way mode; when the fluid pressure in the liquid outlet pipe is equal to or larger than the fluid pressure in the liquid inlet pipe, the liquid inlet pipe can be sealed through the sealing seat, and the two sides of the first flow guide hole can be sealed through the I-shaped sealing disc.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves, in particular to a one-way valve with good sealing performance. Background Art

[0002] A one-way valve, also known as a check valve or non-return valve, is a control valve in which the fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back. The one-way valve is used in hydraulic systems to prevent the reverse flow of oil, or in pneumatic systems to prevent the reverse flow of compressed air. There are two types of one-way valves: straight-through and right-angle. The straight-through one-way valve is installed on the pipeline with a threaded connection; the right-angle one-way valve has three types of connection: threaded connection, plate connection and flange connection.

[0003] Currently, a single check seal structure is usually used inside a one-way valve to prevent fluid backflow. Due to wear and aging during long-term use, the internal check seal structure often fails, causing the fluid at both ends of the one-way valve to flow back, which in turn has an adverse effect on personnel use. Utility Model Content

[0004] The purpose of the utility model is to provide a one-way valve with good sealing performance, which has multiple non-return sealing structures, effectively improving the anti-backflow sealing effect during the overall use process and increasing the overall service life.

[0005] The cam is secured to the bottom of the housing, where the cam is secured to the bottom with a spring, and the cam is secured to the bottom with a spring, the cam being secured to the bottom with a spring.

[0006] As a preferred solution, movable balls are movably connected around the middle end of the I-shaped sealing disk, and the surfaces of the movable balls are movably connected to the middle end of the partition plate.

[0007] As a preferred solution, the four sides of the fixing plate are fixedly connected with fixing rods, and the surfaces of the fixing rods are fixedly connected to the upper ends of the inner cavity of the shell.

[0008] As a preferred solution, both ends of the fixed plate are movably connected to guide slide rods, and the tops of the guide slide rods are fixedly connected to the bottom of the sealing seat.

[0009] As a preferred solution, the number of the guide grooves and the number of the guide blocks are both four.

[0010] As a preferred solution, the lower end of the liquid outlet pipe is fixedly connected to a first flange, the bottom of the first flange is fixedly connected to a first annular sealing gasket, the upper end of the liquid inlet pipe is fixedly connected to a second flange, and the top of the second flange is fixedly connected to a second annular sealing gasket.

[0011] As a preferred solution, the upper end of the sealing seat is fixedly connected to a rubber sealing ring, the surface of the rubber sealing ring is movably connected to the lower end of the inner cavity of the liquid inlet pipe, and both sides of the I-shaped sealing disk are fixedly connected to rubber sealing pads, and the surface of the rubber sealing pads is movably connected to the surface of the partition plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model, through the arrangement of the sealing seat, liquid inlet pipe, fixed plate, support spring, fixed sleeve, guide block, guide groove, vertical shaft, I-shaped sealing plate, second guide hole, partition plate and first guide hole, enables the fluid to flow unidirectionally from the liquid inlet pipe to the liquid outlet pipe. When the fluid pressure inside the liquid outlet pipe is equal to or greater than the fluid pressure inside the liquid inlet pipe, the sealing seat can seal the liquid inlet pipe and the I-shaped sealing plate can seal both sides of the first guide hole, thereby realizing a structure with multiple check seals during use of the one-way valve, effectively preventing the backflow of the fluid while ensuring the long-term and stable use of the whole.

[0014] 2. The utility model can effectively guide the I-shaped sealing disk and the partition plate through the setting of the movable ball, so that the I-shaped sealing disk can rotate along the surface of the partition plate, and the purpose of supporting and fixing the fixed disk and the shell is achieved through the setting of the fixing rod. The purpose of guiding the sealing seat and the fixed disk is achieved through the setting of the guide slide bar, so that the sealing seat is prevented from tilting during the movement. The setting of the first flange, the first annular sealing gasket, the second flange and the second annular sealing gasket are respectively convenient for personnel to use bolts to install and connect the external pipeline with the liquid outlet pipe and the liquid inlet pipe, and at the same time effectively improve the sealing during the installation and docking process. The setting of the rubber sealing ring effectively improves the sealing of the contact between the sealing seat and the liquid inlet pipe, and the setting of the rubber sealing gasket effectively improves the sealing of the contact between the I-shaped sealing disk and the partition plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a front cross-sectional structural diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the housing of the utility model when viewed from above;

[0018] Figure 4 This is a schematic diagram of the structure of the partition plate of the utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the I-shaped sealing disk of the utility model from a top view;

[0020] Figure 6 For this utility model Figure 4 A partial enlarged view of point A in the figure.

[0021] In the figure: 1. Shell; 2. Liquid outlet pipe; 3. First flange; 4. Liquid inlet pipe; 5. Second flange; 6. Rubber sealing ring; 7. Sealing seat; 8. Guide slide; 9. Fixed rod; 10. Vertical shaft; 11. Partition plate; 12. First guide hole; 13. I-shaped sealing disk; 14. Second guide hole; 15. Fixed disk; 16. Support spring; 17. Fixed sleeve; 18. Rubber sealing pad; 19. Movable ball; 20. Guide block; 21. Guide groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in 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.

[0023] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Example 1:

[0025] See also Figures 1-6As shown, the utility model provides a one-way valve with good sealing performance, including a shell 1, a liquid outlet pipe 2 is fixedly connected to the bottom of the shell 1, a partition plate 11 is fixedly connected to the lower end of the inner cavity of the shell 1, and a first guide hole 12 is opened at both ends of the partition plate 11, an I-shaped sealing disk 13 is movably connected between the two sides of the partition plate 11, and a second guide hole 14 is opened at both ends of the I-shaped sealing disk 13, a vertical shaft 10 is fixedly connected to the middle end of the top of the I-shaped sealing disk 13, and a guide groove 21 is opened at the upper end of the vertical shaft 10 The top of the shell 1 is fixedly connected to the liquid inlet pipe 4, and a sealing seat 7 is movably connected between the lower end of the inner cavity of the liquid inlet pipe 4 and the top of the inner cavity of the shell 1. The bottom of the sealing seat 7 is fixedly connected to the support spring 16, and the bottom of the support spring 16 is fixedly connected to the fixed disk 15. The middle end of the bottom of the sealing seat 7 is fixedly connected to the fixed sleeve 17, and the inner cavity of the fixed sleeve 17 is movably connected to the upper end of the vertical shaft 10. The inner cavity of the fixed sleeve 17 is fixedly connected to the guide block 20, and the surface of the guide block 20 is movably connected to the surface of the guide groove 21.

[0026] In the present technical solution, through the arrangement of the sealing seat 7, the liquid inlet pipe 4, the fixed plate 15, the support spring 16, the fixed sleeve 17, the guide block 20, the guide groove 21, the vertical shaft 10, the I-shaped sealing plate 13, the second guide hole 14, the partition plate 11 and the first guide hole 12, the fluid can flow from the liquid inlet pipe 4 to the liquid outlet pipe 2 in one direction, and when the fluid pressure inside the liquid outlet pipe 2 is equal to or greater than the fluid pressure inside the liquid inlet pipe 4, the sealing seat 7 can seal the liquid inlet pipe 4 and the I-shaped sealing plate 13 can seal both sides of the first guide hole 12, thereby realizing that the one-way valve has a structure with multiple check seals during use, effectively avoiding the backflow of the fluid while ensuring that the overall one-way valve can be used stably for a long time.

[0027] Example 2:

[0028] On the basis of embodiment 1, the present invention is as follows Figures 1-6As shown, it is disclosed that the middle end of the I-shaped sealing disk 13 is movably connected with movable balls 19 on all sides, and the surface of the movable balls 19 is movably connected to the middle end of the partition plate 11. The fixed disk 15 is fixedly connected with fixed rods 9 on all sides, and the surface of the fixed rods 9 is fixedly connected to the upper end of the inner cavity of the shell 1. Both ends of the fixed disk 15 are movably connected with guide slides 8, and the top of the guide slides 8 is fixedly connected to the bottom of the sealing seat 7. There are four guide grooves 21 and guide blocks 20. The lower end of the liquid outlet pipe 2 is fixedly connected with a first flange 3, and the bottom of the first flange 3 is fixedly connected with a first annular sealing gasket, the upper end of the liquid inlet pipe 4 is fixedly connected with a second flange 5, and the top of the second flange 5 is fixedly connected with a second annular sealing gasket. The upper end of the sealing seat 7 is fixedly connected with a rubber sealing ring 6, and the surface of the rubber sealing ring 6 is movably connected to the lower end of the inner cavity of the liquid inlet pipe 4. Both sides of the I-shaped sealing disk 13 are fixedly connected with rubber sealing gaskets 18, and the surface of the rubber sealing gasket 18 is movably connected to the surface of the partition plate 11.

[0029] In the present technical solution, the setting of the movable ball 19 can effectively guide the I-shaped sealing disk 13 and the partition plate 11, so that the I-shaped sealing disk 13 can rotate along the surface of the partition plate 11. The setting of the fixing rod 9 achieves the purpose of supporting and fixing the fixing disk 15 and the shell 1. The setting of the guide slide rod 8 achieves the purpose of guiding the sealing seat 7 and the fixed disk 15, thereby preventing the sealing seat 7 from tilting during the movement. The setting of the first flange 3, the first annular sealing gasket, the second flange 5 and the second annular sealing gasket respectively facilitates personnel to use bolts to install and dock the external pipeline with the liquid outlet pipe 2 and the liquid inlet pipe 4, and at the same time effectively improves the sealing performance during the installation and docking process. The setting of the rubber sealing ring 6 effectively improves the sealing performance of the contact between the sealing seat 7 and the liquid inlet pipe 4. The setting of the rubber sealing gasket 18 effectively improves the sealing performance of the contact between the I-shaped sealing disk 13 and the partition plate 11.

[0030] The working principle of the present invention is as follows: when the fluid flows and is transported from top to bottom, the sealing seat 7 can be pushed to move downward along the surface of the liquid inlet pipe 4 under the action of the fluid pressure, so that the sealing seat 7 can be separated from the inner cavity of the liquid inlet pipe 4. At the same time, during the movement of the sealing seat 7, the support spring 16 on the fixed disk 15 can be compressed, and the fixed sleeve 17 and the guide block 20 can be driven to move downward. While the guide block 20 moves, it can push the vertical shaft 10 to rotate through the guide groove 21. The rotation of the vertical shaft 10 can drive the I-shaped sealing disk 13 and the second guide hole 14 to rotate along the surface of the partition plate 11, so that the second guide hole 14 and the first guide hole 12 can overlap and be connected, so that the fluid inside the liquid inlet pipe 4 can flow to the liquid outlet pipe 2 through the shell 1, the second guide hole 14 and the first guide hole 12, and when the fluid pressure inside the liquid outlet pipe 2 is equal to or higher than When the fluid pressure inside the liquid inlet pipe 4 is high, the support spring 16 is pre-pressed with compression tension, which can push the sealing seat 7 to move upward, so that the sealing seat 7 can fit with the inner cavity of the liquid inlet pipe 4 to form a preliminary seal. At the same time, under the action of the movement of the sealing seat 7, the fixing sleeve 17 and the guide block 20 can be driven to move upward. The movement of the guide block 20 can drive the vertical shaft 10, the I-shaped sealing disk 13 and the second guide hole 14 to rotate through the guide groove 21, so that the second guide hole 14 and the first guide hole 12 can be staggered, resulting in the I-shaped sealing disk 13 being able to be located on both sides of the first guide hole 12, thereby forming a double-layer seal, effectively preventing the fluid from flowing back from the liquid outlet pipe 2 to the liquid inlet pipe 4, so that under the action of the overall cooperation, the one-way valve is provided with a structure of multiple check seals during use, effectively preventing the fluid from flowing back, and ensuring that the overall structure can be used stably for a long time.

[0031] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0032] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A one-way valve with good sealing performance, comprising a housing (1), characterized in that: The bottom of the shell (1) is fixedly connected to a liquid outlet pipe (2), the lower end of the inner cavity of the shell (1) is fixedly connected to a partition plate (11), both ends of the partition plate (11) are provided with a first flow guide hole (12), an I-shaped sealing disk (13) is movably connected between the two sides of the partition plate (11), both ends of the I-shaped sealing disk (13) are provided with a second flow guide hole (14), the middle end of the top of the I-shaped sealing disk (13) is fixedly connected to a vertical shaft (10), the upper end of the vertical shaft (10) is provided with a guide groove (21), and the top of the shell (1) is fixedly connected to a liquid inlet. A tube (4) is provided, a sealing seat (7) is movably connected between the lower end of the inner cavity of the liquid inlet tube (4) and the top of the inner cavity of the shell (1), the bottom of the sealing seat (7) is fixedly connected to a support spring (16), the bottom of the support spring (16) is fixedly connected to a fixed disk (15), the middle end of the bottom of the sealing seat (7) is fixedly connected to a fixed sleeve (17), the inner cavity of the fixed sleeve (17) is movably connected to the upper end of the vertical shaft (10), the inner cavity of the fixed sleeve (17) is fixedly connected to a guide block (20), and the surface of the guide block (20) is movably connected to the surface of the guide groove (21).

2. A one-way valve with good sealing performance according to claim 1, characterized in that: The middle end of the I-shaped sealing disc (13) is movably connected to movable balls (19) on all sides, and the surface of the movable balls (19) is movably connected to the middle end of the partition plate (11).

3. A one-way valve with good sealing performance according to claim 1, characterized in that: The fixing plate (15) is fixedly connected to fixing rods (9) on all four sides, and the surface of the fixing rods (9) is fixedly connected to the upper end of the inner cavity of the shell (1).

4. A one-way valve with good sealing performance according to claim 1, characterized in that: Both ends of the fixed disk (15) are movably connected to guide slide bars (8), and the top of the guide slide bar (8) is fixedly connected to the bottom of the sealing seat (7).

5. A one-way valve with good sealing performance according to claim 1, characterized in that: The number of the guide grooves (21) and the number of the guide blocks (20) are both four.

6. A one-way valve with good sealing performance according to claim 1, characterized in that: The lower end of the liquid outlet pipe (2) is fixedly connected to a first flange (3), the bottom of the first flange (3) is fixedly connected to a first annular sealing gasket, the upper end of the liquid inlet pipe (4) is fixedly connected to a second flange (5), and the top of the second flange (5) is fixedly connected to a second annular sealing gasket.

7. A one-way valve with good sealing performance according to claim 1, characterized in that: The upper end of the sealing seat (7) is fixedly connected to a rubber sealing ring (6), the surface of which is movably connected to the lower end of the inner cavity of the liquid inlet pipe (4), and both sides of the I-shaped sealing disk (13) are fixedly connected to rubber sealing pads (18), the surface of which is movably connected to the surface of the partition plate (11).

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