Swash plate type buffer check valve

Abstract

The invention discloses a swash plate type buffer check valve, and relates to the technical field of buffer check valves, the swash plate type buffer check valve comprises a valve body, an inner sealing ring is obliquely mounted on the surface of the inner wall of the valve body, sealing shaft sleeve assemblies are arranged on the two side walls of the valve body, and a valve clack mechanism is rotatably mounted between the two sealing shaft sleeve assemblies; an inserting groove is formed in one end of a rotating shaft of the valve clack mechanism, a non-return mechanism is installed on the sealing shaft sleeve assembly close to the inserting groove, and a limiting ring is fixedly installed on the inner surface of the input end of the valve body. The filtering mechanism is arranged, impurities in a pipeline can be effectively filtered out, the impurities are prevented from being accumulated at the position of the valve clack mechanism, normal operation and sealing performance of the valve clack mechanism are guaranteed, the service life of the valve is prolonged, the counter weight hammer, the damper and the hydraulic cylinder in the non-return mechanism are matched with one another, reverse flow can be effectively prevented in time when media flow reversely, and the service life of the valve is prolonged. The buffering effect is remarkable, and damage of the water hammer phenomenon to a pipeline system is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of buffer check valves, and particularly relates to an inclined disk type buffer check valve. Background Art

[0002] The inclined disk type buffer check valve is a commonly used control device in industrial pipeline systems, mainly used to prevent the reverse flow of media, ensure the unidirectional flow of media in the pipeline system, and is widely used in multiple fields such as petroleum, chemical industry, and electric power. However, there are some deficiencies in the existing inclined disk type buffer check valves. For example, during long-term use, impurities in the pipeline are likely to accumulate at the valve flap, affecting the normal opening and closing and sealing performance of the valve flap; the buffering and check effects of some check valves are not good, and when the media flows in the reverse direction, it cannot effectively prevent the reverse flow in a timely manner, and may even cause water hammer phenomenon, damaging the pipeline system; at the same time, the structural strength of some valve flaps is insufficient and is prone to damage during frequent opening and closing. Summary of the Invention

[0003] The main purpose of the present invention is to provide an inclined disk type buffer check valve, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] An inclined disk type buffer check valve, including a valve body. An inner sealing ring is inclinedly installed on the inner wall surface of the valve body. Sealing shaft sleeve assemblies are provided on both side walls of the valve body. A valve flap mechanism is rotatably installed between the two sealing shaft sleeve assemblies. One end of the rotating shaft of the valve flap mechanism is provided with a plugging groove. A check mechanism is installed on one of the sealing shaft sleeve assemblies close to the plugging groove. A limiting ring is fixedly installed on the inner surface of the input end of the valve body, and a filtering mechanism adapted to it is installed on one side of the limiting ring.

[0006] The valve flap mechanism includes a rotating core, reinforcing bars, lower arc grooves, and a valve flap. The rotating core is rotatably installed in the valve body through the sealing shaft sleeve assembly. A valve flap is fixedly installed on the rotating core. A plurality of upper arc grooves are provided on the top surface of the valve flap, and a plurality of lower arc grooves are provided on the bottom surface. The valve flap is in sealing cooperation with the inner sealing ring.

[0007] The filtering mechanism includes a shell ring, a filter plate, a connecting shaft, and a shear plate. The shell ring is embedded in the limiting ring. A filter plate is fixedly installed in the shell ring. The middle of the filter plate is rotatably connected to the shear plate through the connecting shaft. An inner sealing plate is fixed on one side of the shear plate. The inner sealing plate is connected to the outer sealing plate through a connecting column. A sliding slot is provided on the side wall of the valve body for the connecting column to slide. The inner sealing plate and the outer sealing plate respectively seal the inner and outer surfaces of the sliding slot.

[0008] Preferably, the rotating core and the valve flap are connected by two reinforcing bars, and a plugging groove is provided at one end of the rotating core.

[0009] Preferably, a high-frequency reciprocating motor is installed on the outer surface of the valve body. A rotating block with a second connecting tooth is fixed to the output end of the high-frequency reciprocating motor. A first connecting tooth meshing with the second connecting tooth is provided on one side of the outer sealing plate.

[0010] Preferably, the filter plate and the shear plate are both provided with a number of corresponding filter holes, and the gap between the two is.cm.

[0011] Preferably, the check mechanism includes a support frame, a swing arm and a counterweight. A rotating shaft of an input plug is rotatably installed in the support frame. A swing arm is fixed to the surface on one side of the rotating shaft. The other end of the swing arm is fixedly connected with a counterweight. A damper and a hydraulic cylinder are rotatably connected to the bottom of the support frame. The other end of the hydraulic cylinder is hinged to the bottom surface of the swing arm.

[0012] Preferably, a chute is provided on the bottom surface of the swing arm. A sliding plate is fixed in the chute through an adjusting screw. The sliding plate is rotatably connected to the telescopic end of the damper.

[0013] Preferably, a number of reinforcing ribs are evenly distributed on both sides of the inner surface of the valve body near the inner sealing ring.

[0014] Preferably, the top of the valve body is sealed through a mounting buckle, and first flanges are provided at the input and output ends.

[0015] Preferably, the input plug is adapted to the plugging groove, and the check mechanism is fixed to the sealing shaft sleeve assembly through a second flange.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By providing a filtering mechanism, impurities in the pipeline can be effectively filtered, preventing impurities from accumulating at the valve flap mechanism, ensuring the normal operation and sealing performance of the valve flap mechanism, and extending the service life of the valve.

[0018] 2. Through the mutual cooperation of the counterweight, the damper and the hydraulic cylinder in the check mechanism, when the medium flows reversely, the reverse flow can be effectively blocked in time, the buffering effect is remarkable, and the damage to the pipeline system caused by the water hammer phenomenon is reduced.

[0019] 3. It is set that the rotating core and the valve flap in the valve flap mechanism are connected through a reinforcing strip, and at the same time, a number of reinforcing ribs are evenly distributed on both sides of the inner surface of the valve body near the inner sealing ring, enhancing the overall structural strength of the valve and improving the reliability and stability of the valve.

[0020] 4. The shear plate in the filtering mechanism can be rotated under the drive of the high-frequency reciprocating motor and cooperate with the filter plate to shear off the impurities stuck in the filter holes, which is convenient for cleaning and ensures the filtering effect. Brief Description of the Drawings

[0021] Figure 1 Schematic diagram of the overall structure of an inclined - disk type buffer check valve of the present invention;

[0022] Figure 2 Schematic diagram of the right - view structure of an inclined - disk type buffer check valve of the present invention;

[0023] Figure 3 Schematic diagram of the front - view structure of an inclined - disk type buffer check valve of the present invention;

[0024] Figure 4 Schematic diagram of the three - dimensional structure of the valve body of an inclined - disk type buffer check valve of the present invention;

[0025] Figure 5 Schematic diagram of the installation structure of the check mechanism of an inclined - disk type buffer check valve of the present invention;

[0026] Figure 6 Schematic diagram of the three - dimensional structure of the valve flap mechanism of an inclined - disk type buffer check valve of the present invention;

[0027] Figure 7 Schematic diagram of the first three - dimensional structure of the check mechanism of an inclined - disk type buffer check valve of the present invention;

[0028] Figure 8 Schematic diagram of the three - dimensional structure of the filtering mechanism of an inclined - disk type buffer check valve of the present invention;

[0029] Figure 9 Schematic diagram of the structure of the high - frequency reciprocating motor of an inclined - disk type buffer check valve of the present invention;

[0030] Figure 10 Schematic diagram of the second three - dimensional structure of the check mechanism of an inclined - disk type buffer check valve of the present invention.

[0031] In the figure: 1. Valve body; 2. First flange; 3. Installation buckle; 4. High - frequency reciprocating motor; 5. Rotating block; 6. Filtering mechanism; 61. Shell ring; 62. Filter plate; 63. Connecting shaft; 64. Shearing plate; 65. Inner sealing plate; 66. Connecting column; 67. First connecting tooth; 68. Outer sealing plate; 7. Check mechanism; 71. Support frame; 72. Swing arm; 73. Counterweight; 74. Chute; 75. Sliding plate; 76. Adjusting screw; 77. Damper; 78. Hydraulic cylinder; 79. Input socket; 8. Second flange; 9. Sealing shaft sleeve assembly; 10. Insertion slot; 11. Limiting ring; 12. Reinforcing rib; 13. Inner sealing ring; 14. Valve flap mechanism; 1401. Rotating core; 1402. Reinforcing strip; 1403. Lower arc groove; 1404. Valve flap; 1405. Upper arc groove; 15. Second connecting tooth. Detailed implementation manners

[0032] To make the technical means, creative features, achieved purposes and effects of the present invention easily understandable, the present invention will be further described below in conjunction with specific embodiments.

[0033] As Figures 1-10 shown, an inclined disk type buffer check valve includes a valve body 1. An inner sealing ring 13 is inclinedly installed on the inner wall surface of the valve body 1. Sealing shaft sleeve assemblies 9 are provided on both side walls of the valve body 1. A valve flap mechanism 14 is rotatably installed between the two sealing shaft sleeve assemblies 9. One end of the rotating shaft of the valve flap mechanism 14 is provided with a plug-in slot 10. A check mechanism 7 is installed on one of the sealing shaft sleeve assemblies 9 close to the plug-in slot 10. A limiting ring 11 is fixedly installed on the inner surface of the input end of the valve body 1. A filtering mechanism 6 adapted thereto is installed on one side of the limiting ring 11.

[0034] The valve flap mechanism 14 includes a rotating core 1401, reinforcing strips 1402, lower arc-shaped grooves 1403 and a valve flap 1404. The rotating core 1401 is rotatably installed in the valve body 1 through the sealing shaft sleeve assembly 9. A valve flap 1404 is fixedly installed on the rotating core 1401. A plurality of upper arc-shaped grooves 1405 are provided on the top surface of the valve flap 1404, and a plurality of lower arc-shaped grooves 1403 are provided on the bottom surface. The valve flap 1404 is in sealing cooperation with the inner sealing ring 13.

[0035] The filtering mechanism 6 includes a shell ring 61, a filter plate 62, a connecting shaft 63 and a shear plate 64. The shell ring 61 is embedded in the limiting ring 11. A filter plate 62 is fixedly installed in the shell ring 61. The middle of the filter plate 62 is rotatably connected to the shear plate 64 through the connecting shaft 63. An inner sealing plate 65 is fixed on one side of the shear plate 64. The inner sealing plate 65 is connected to the outer sealing plate 68 through a connecting column 66. A sliding slot is provided on the side wall of the valve body 1 for the connecting column 66 to slide. The inner sealing plate 65 and the outer sealing plate 68 respectively seal the inner and outer surfaces of the sliding slot; the filtering mechanism 6 filters impurities in the pipeline to prevent impurities from entering the valve interior and affecting the normal operation of the valve flap mechanism 14. The shell ring 61 is embedded in the limiting ring 11, the filter plate 62 is fixed in the shell ring 61, and the shear plate 64 is rotatable and cooperates with the filter plate 62 to clean impurities stuck in the filter holes.

[0036] In this embodiment, the rotating core 1401 and the valve flap 1404 are connected by two reinforcing strips 1402, and a plug-in slot 10 is provided at one end of the rotating core 1401.

[0037] Specifically, the flow direction of the medium is controlled. When the medium flows forward, the valve flap 1404 opens to allow the medium to pass through; when the medium flows backward, the valve flap 1404 closes to prevent the medium from flowing backward. The rotating core 1401 is rotatably installed in the valve body 1 through the sealing shaft sleeve assembly 9, and the reinforcing strips 1402 enhance the connection strength between the valve flap 1404 and the rotating core 1401.

[0038] In this embodiment, a high-frequency reciprocating motor 4 is installed on the outer surface of the valve body 1. A rotating block 5 with a second connecting tooth 15 is fixed to the output end of the high-frequency reciprocating motor 4. A first connecting tooth 67 meshing with the second connecting tooth 15 is provided on one side of the outer sealing plate 68. Both the filter plate 62 and the shear plate 64 are provided with a number of corresponding filter holes, and the gap between them is 0.2 cm.

[0039] Specifically, the valve body 1 serves as the main body structure of the entire valve, providing installation space and support for other components, and ensuring the sealing performance and stability of the valve. Sealing shaft sleeve assemblies 9 are provided on both side walls of the valve body 1 for installing the valve flap mechanism 14. Its top is sealed by the mounting buckle 3, and first flanges 2 are provided at the input and output ends for convenient connection with pipelines.

[0040] In this embodiment, the check mechanism 7 includes a support frame 71, a swing arm 72, and a counterweight 73. A rotating shaft of an input plug 79 is rotatably installed in the support frame 71. A swing arm 72 is fixed to the surface of one side of the rotating shaft, and the other end of the swing arm 72 is fixedly connected with a counterweight 73. The bottom of the support frame 71 is rotatably connected to a damper 77 and a hydraulic cylinder 78, and the other end of the hydraulic cylinder 78 is hinged to the bottom surface of the swing arm 72. A chute 74 is provided on the bottom surface of the swing arm 72, and a sliding plate 75 is fixed in the chute 74 through an adjusting screw 76. The sliding plate 75 is rotatably connected to the telescopic end of the damper 77. A number of reinforcing ribs 12 are evenly distributed on the inner surface of the valve body 1 near both sides of the inner sealing ring 13. The top of the valve body 1 is sealed by the mounting buckle 3, and first flanges 2 are provided at the input and output ends. The input plug 79 is adapted to the plugging groove 10, and the check mechanism 7 is fixed to the sealing shaft sleeve assembly 9 through a second flange 8.

[0041] Specifically, when the medium flows in the reverse direction, the check mechanism 7 provides a force to prevent the valve flap mechanism 14 from opening, preventing the reverse flow of the medium. A rotating shaft of an input plug 79 is rotatably installed in the support frame 71. The setting of the swing arm 72 and the counterweight 73, as well as the cooperation of the damper 77 and the hydraulic cylinder 78, can achieve the functions of buffering and check.

[0042] Working principle: The inner sealing ring 13 inclinedly installed on the inner surface of the valve body 1 is in sealing cooperation with the valve flap mechanism 14 to prevent medium leakage. The reinforcing rib 12 enhances the structural strength of the valve body 1 so that it can withstand the pressure in the pipeline. When the medium flows forward, it pushes the valve flap 1404 to rotate around the rotating core 1401 to open; when the medium flows backward, the valve flap 1404 rotates around the rotating core 1401 to close under the action of the medium pressure and the check mechanism 7 and is in sealing cooperation with the inner sealing ring 13. The upper arc groove 1405 on the top surface and the lower arc groove 1403 on the bottom surface of the valve flap 1404 can reduce the resistance of the medium flow. When the medium flows through the filter plate 62, impurities are intercepted by the filter plate 62. The high-frequency reciprocating motor 4 drives the rotating block 5 to rotate. Through the engagement of the second connecting tooth 15 and the first connecting tooth 67, it drives the outer sealing plate 68 and the inner sealing plate 65 to move, so that the shear plate 64 rotates around the connecting shaft 63 to shear off the impurities stuck in the filter holes of the filter plate 62. When the medium flows forward, the valve flap mechanism 14 opens, driving the input plug 79 to rotate, and the swing arm 72 and the counterweight 73 swing accordingly; when the medium flows backward, the valve flap mechanism 14 has a tendency to open. The gravity of the counterweight 73 and the buffering effects of the damper 77 and the hydraulic cylinder 78 cause the swing arm 72 to prevent the input plug 79 from rotating, so that the valve flap mechanism 14 closes to prevent the medium from flowing backward. By adjusting the screw 76, the position of the sliding plate 75 in the sliding groove 74 can be adjusted, and then the effect of the damper 77 can be adjusted.

[0043] The circuits, electronic components and control modules involved are all prior arts and can be fully realized by those skilled in the art without further elaboration. The content protected by the present invention does not involve improvements to software and methods either.

[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 by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A tilting disc type buffer check valve, characterized in that: The valve body (1) comprises a valve body (1), an inner sealing ring (13) is obliquely mounted on the inner wall surface of the valve body (1), sealing sleeve assemblies (9) are mounted on both side walls of the valve body (1), a valve flap mechanism (14) is rotatably mounted between the two sealing sleeve assemblies (9), a plug-in slot (10) is mounted on one end of the rotating shaft of the valve flap mechanism (14), a non-return mechanism (7) is mounted on a sealing sleeve assembly (9) close to the plug-in slot (10), a limiting ring (11) is fixedly mounted on the inner surface of the input end of the valve body (1), and a filter mechanism (6) adapted thereto is mounted on one side of the limiting ring (11); The valve flap mechanism (14) comprises a rotating core (1401), a reinforcement strip (1402), a lower arc-shaped groove (1403) and a valve flap (1404); the rotating core (1401) is rotatably mounted in the valve body (1) via a sealing shaft sleeve assembly (9); the valve flap (1404) is fixedly mounted on the rotating core (1401); a plurality of upper arc-shaped grooves (1405) are provided on the top surface of the valve flap (1404), and a plurality of lower arc-shaped grooves (1403) are provided on the bottom surface; the valve flap (1404) is sealed and matched with the inner sealing ring (13); The filtering mechanism (6) comprises a shell ring (61), a filter plate (62), a connecting shaft (63) and a shear plate (64); the shell ring (61) is embedded in a limiting ring (11); a filter plate (62) is fixedly installed in the shell ring (61); the middle part of the filter plate (62) is rotatably connected to the shear plate (64) via a connecting shaft (63); an inner sealing plate (65) is fixed to one side of the shear plate (64); the inner sealing plate (65) is connected to an outer sealing plate (68) via a connecting column (66); a sliding groove is provided on the side wall of the valve body (1) for the sliding of the connecting column (66); the inner sealing plate (65) and the outer sealing plate (68) respectively seal the inner and outer surfaces of the sliding groove.

2. The inclined disc type buffer check valve according to claim 1, characterized in that: The rotating core (1401) and the valve flap (1404) are connected via two reinforcement strips (1402), and a plug-in slot (10) is provided at one end of the rotating core (1401).

3. The inclined disc type buffer check valve according to claim 1, characterized in that: A high-frequency reciprocating motor (4) is mounted on the outer surface of the valve body (1), a rotating block (5) with a second connecting tooth (15) is fixed to the output end of the high-frequency reciprocating motor (4), and a first connecting tooth (67) meshing with the second connecting tooth (15) is provided on one side of the outer sealing plate (68).

4. The inclined disc type buffer check valve according to claim 1, characterized in that: The filter plate (62) and the shear plate (64) are both provided with a plurality of corresponding filter holes, and the gap between the two is 0.2 cm.

5. The inclined disc type buffer check valve according to claim 1, characterized in that: The non-return mechanism (7) comprises a support frame (71), a swing arm (72) and a counterweight (73); a rotating shaft of an input plug connector (79) is rotatably mounted in the support frame (71); a swing arm (72) is fixed to a surface of one side of the rotating shaft; the remaining end of the swing arm (72) is fixedly connected to a counterweight (73); the bottom of the support frame (71) is rotatably connected to a damper (77) and a hydraulic cylinder (78); the other end of the hydraulic cylinder (78) is hinged to the bottom surface of the swing arm (72).

6. The inclined disc type buffer check valve according to claim 5, characterized in that: A slide groove (74) is provided on the bottom surface of the swing arm (72), a slide plate (75) is fixed in the slide groove (74) via an adjusting screw (76), and the slide plate (75) is rotatably connected to the telescopic end of the damper (77).

7. The inclined disc type buffer check valve according to claim 1, characterized in that: A plurality of reinforcing ribs (12) are evenly distributed on both sides of the inner surface of the valve body (1) close to the inner sealing ring (13).

8. The inclined disc type buffer check valve according to claim 1, characterized in that: The top of the valve body (1) is sealed by a mounting buckle (3), and the input and output ends are provided with a first flange (2).

9. The inclined disc type buffer check valve according to claim 5, characterized in that: The input plug connector (79) is matched with the plug groove (10), and the non-return mechanism (7) is fixed to the sealing sleeve assembly (9) via the second flange (8).

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