Buffer type mechanical valve

Abstract

The utility model discloses a buffer type mechanical valve, which relates to the technical field of mechanical valves, and comprises a valve body, a water inlet pipe arranged at the liquid inlet end of the valve body, a water outlet pipe arranged at the liquid outlet end of the valve body, a lifting groove arranged on the surface of the water inlet pipe, a main sleeve arranged at the top end of the lifting groove, and a main piston disc connected with the inner wall of the main sleeve in a sliding manner, a reset spring is arranged between the main piston disc and the main sleeve, and a main trapezoidal block sliding relative to the lifting groove is arranged on the inner side of the main piston disc. The utility model has the beneficial effects that the impact force of water flow is reduced through the elastic force generated by the deformation of the reset spring, the buffering is realized, the reset spring is isolated from the water flow by the main piston disc, the reset spring is prevented from being stained with scale or rusting, the service life of the reset spring is prolonged, the reset spring is limited by the sliding rod and is prevented from being damaged due to excessive bending, and the service life of the reset spring is prolonged. And the service life of the reset spring is further prolonged.

Description

Technical Field

[0001] The utility model relates to a mechanical valve, in particular to a buffer-type mechanical valve, belonging to the technical field of mechanical valves. Background Art

[0002] Mechanical valves are control components in fluid conveying systems, performing functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion, or overflow pressure relief. They can be used to control the flow of various fluids, including air, water, steam, mud, oil, liquid metal, and radioactive media. In practical applications, mechanical valves are easily damaged by the immense impact force of the liquid, which in turn reduces their service life. Therefore, a buffer-type mechanical valve is needed.

[0003] Among them, the "buffer-type mechanical valve" disclosed in the application number "201721665273.3" "includes a mechanical valve body, and a plurality of small arc protrusions are evenly provided on the inner wall of the mechanical valve body, a buffer plate is clamped in the clamping groove, and a plurality of guide belts are fixedly connected to one side wall of the buffer plate. The two side walls of the buffer plate are elastically fixed in the clamping groove by reset spring 1 and reset spring 2 respectively. This device utilizes small arc protrusions to facilitate buffering of the liquid flowing into the mechanical valve, reduce the impact force of the liquid, and thus ensure the service life of the device. Reset spring 1 and reset spring 2 are utilized to ensure that the buffer plate performs secondary buffering when subjected to impact force, thereby ensuring the service life of the mechanical valve body. The guide belt can drain the liquid to reduce the liquid from sliding directly off the buffer plate and wearing the buffer plate."

[0004] However, the above method has the following defects: when conveying water, the first and second return springs are in contact with water for a long time, and are easily covered with scale or rust, which affects the elastic effect of the return spring. Utility Model Content

[0005] The purpose of the utility model is to provide a buffer-type mechanical valve to solve the problem that the existing first and second return springs are easily covered with scale or rust, which affects the elastic effect of the return spring.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a buffer-type mechanical valve, comprising a valve body, a water inlet pipe is provided at the liquid inlet end of the valve body, a water outlet pipe is provided at the liquid outlet end of the valve body, a lifting groove is provided on the surface of the water inlet pipe, a main sleeve is provided at the top of the lifting groove, a main piston disc is slidably connected to the inner wall of the main sleeve, a return spring is provided between the main piston disc and the main sleeve, a main trapezoidal block is provided on the inner side of the main piston disc to slide with the lifting groove, a secondary trapezoidal block is slidably connected to the inclined surface of the main trapezoidal block, a buffer disc is provided on one side of the secondary trapezoidal block to slide with the inner wall of the water inlet pipe, and a guide groove is provided on the inner wall of the water inlet pipe.

[0007] As an optimal technical solution of the present invention, an impact-resistant component is provided inside the water inlet pipe, an auxiliary component is provided inside the water outlet pipe, one end of the water inlet pipe and one end of the water outlet pipe are provided with connecting flanges, the interior of the lifting groove is connected to the interior of the guide groove, a sliding hole is provided on the surface of the main sleeve, a main drain hole is provided on the surface of the buffer disk, and the inner wall of the guide groove is slidably connected to the surface of the secondary trapezoidal block.

[0008] As an optimal technical solution of the present invention, an impact-resistant component is provided inside the water inlet pipe, an auxiliary component is provided inside the water outlet pipe, the interior of the lifting groove is connected with the interior of the guide groove, a sliding hole is provided on the surface of the main sleeve, and a main drain hole is provided on the surface of the buffer plate.

[0009] As a preferred technical solution of the present invention, a sliding rod that slides with the sliding hole is provided on the outer side of the main piston disc, and the return spring is sleeved on the outside of the sliding rod.

[0010] As an optimal technical solution of the present invention, the impact-resistant component includes a wear-resistant disk, which is arranged at one end of the buffer disk by screws, and the surface of the wear-resistant disk is slidably connected to the inner wall of the water inlet pipe. The surface of the wear-resistant disk is provided with a secondary drain hole connected to the interior of the main drain hole, and one end of the wear-resistant disk is provided with a wear-resistant tube that slides with the main drain hole.

[0011] As an optimal technical solution of the present invention, the auxiliary component includes a connecting ring and a fixed component. The connecting ring is slidably arranged on the inner wall of the water outlet pipe. The inner wall of the connecting ring is provided with a filter net, and a slot is opened on the surface of the connecting ring.

[0012] As an optimal technical solution of the present utility model, the fixing assembly includes a secondary sleeve and a through groove, the secondary sleeve is arranged on the surface of the water outlet pipe, one end of the secondary sleeve is rotatably connected to the driving cylinder through a sealed bearing, one end of the driving cylinder is provided with a threaded groove, the inner wall of the threaded groove is threadedly connected to a screw, one end of the screw is provided with an insert block engaged with the slot, the through groove is opened on the surface of the water outlet pipe, and the inner wall of the through groove is slidably connected to the surface of the insert block.

[0013] As an optimal technical solution of the present invention, the other end of the driving cylinder is provided with an observation hole connected to the interior of the thread groove, the inner wall of the observation hole is provided with an observation window, the surface of the screw is provided with a secondary piston disk, and the surface of the secondary piston disk is slidably connected to the inner wall of the secondary sleeve.

[0014] As an optimal technical solution of the present invention, a connecting tube is provided at one end of the main sleeve, a pressure sensor plate is provided on the inner wall of the connecting tube, the connecting tube is sleeved on the outside of the sliding rod, a collecting box is provided on the surface of the connecting tube, a single-chip microcomputer and a wireless wifi module are respectively provided inside the collecting box, a warning light is provided at one end of the connecting tube, and the warning light, wireless wifi module and pressure sensor plate are all electrically connected to the single-chip microcomputer.

[0015] Compared with related technologies, the buffer-type mechanical valve provided by the present invention has the following beneficial effects:

[0016] 1. The elastic force generated by the deformation of the return spring reduces the impact force of the water flow and achieves buffering. The main piston disc isolates the return spring from the water flow to prevent the return spring from being contaminated with scale or rust, thereby extending the service life of the return spring. The slide rod limits the return spring to prevent it from being damaged by excessive bending, further extending the service life of the return spring.

[0017] 2. The wear-resistant disc prevents water from directly impacting the buffer disc, slowing down the wear of the buffer disc. The wear-resistant tube prevents water from directly flowing through the main drain hole, slowing down the wear of the main drain hole, thereby extending the service life of the buffer disc. The impact-resistant component can be replaced by removing the screws;

[0018] 3. The filter screen can properly buffer the water flow and block the falling screws or impurities in the water flow to prevent the screws or impurities from damaging other valves on the pipeline, which is safer. Turn the drive cylinder, which drives the screw rod to move upward, and the screw rod drives the insert rod to move upward, prompting the insert rod to disengage from the slot, releasing the fixation of the insert rod on the connecting ring, making it easier to remove the connecting ring and clean the screws or impurities.

[0019] 4. Through the cooperation of the main piston disc, slide rod, pressure sensor board, warning light, single chip microcomputer and wireless WiFi module, an early warning is issued when the impact force of the water flow is too large, reminding workers to deal with it in time, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0023] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at point B;

[0024] Figure 5For this utility model Figure 2 Schematic diagram of the enlarged structure at C;

[0025] Figure 6 This is a schematic diagram of the explosion structure of the buffer disk of the utility model.

[0026] In the figure: 1. Valve body; 2. Water inlet pipe; 3. Water outlet pipe; 4. Connecting flange; 5. Impact-resistant component; 51. Wear-resistant disc; 52. Secondary drain hole; 53. Wear-resistant pipe; 6. Auxiliary component; 61. Connecting ring; 62. Filter screen; 63. Slot; 64. Fixing component; 641. Secondary sleeve; 642. Drive cylinder; 643. Threaded groove; 644. Screw; 645. Secondary piston disc; 646. Insert block; 647. Through groove; 648. Observation hole; 649. Observation window; 7. Lifting groove; 8. Main sleeve; 9. Main piston disc; 10. Return spring; 11. Main trapezoidal block; 12. Secondary trapezoidal block; 13. Buffer disc; 14. Guide groove; 15. Slide rod; 16. Main drain hole; 17. Connecting cylinder; 18. Pressure sensor board; 19. Collector box; 20. Warning light. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-6The utility model provides a buffer-type mechanical valve, including a valve body 1, a water inlet pipe 2 is provided at the liquid inlet end of the valve body 1, a water outlet pipe 3 is fixedly provided at the liquid outlet end of the valve body 1, a lifting groove 7 is opened on the surface of the water inlet pipe 2, and there are two lifting grooves 7. A main sleeve 8 is fixedly provided at the top of the lifting groove 7, and a main piston disc 9 is slidably connected to the inner wall of the main sleeve 8. A return spring 10 is fixedly provided between the main piston disc 9 and the main sleeve 8. A main trapezoidal block 11 that slides with the lifting groove 7 is fixed on the inner side of the main piston disc 9, and a secondary trapezoidal block 12 is slidably connected to the inclined surface of the main trapezoidal block 11. A buffer disc 1 that slides with the inner wall of the water inlet pipe 2 is fixed on one side of the secondary trapezoidal block 12. 3. A guide groove 14 is provided on the inner wall of the water inlet pipe 2. When the water flows into the water inlet pipe 2, it will impact the buffer disk 13. The moving buffer disk 13 pushes the inclined surface of the main trapezoidal block 11 through the inclined surface of the secondary trapezoidal block 12, prompting the main trapezoidal block 11 to move away from the buffer disk 13. The main trapezoidal block 11 compresses the reset spring 10 through the main piston disk 9. The elastic force generated by the deformation of the reset spring 10 will neutralize the impact force of the water flow, reduce the impact force of the water flow, and achieve buffering. The main piston disk 9 isolates the reset spring 10 from the water flow to prevent the reset spring 10 from being covered with scale or rust, thereby extending the service life of the reset spring 10 and ensuring the elastic effect of the reset spring 10.

[0029] An impact-resistant component 5 is provided inside the water inlet pipe 2, and an auxiliary component 6 is provided inside the water outlet pipe 3. A connecting flange 4 is fixedly provided at one end of the water inlet pipe 2 and one end of the water outlet pipe 3. The interior of the lifting groove 7 is connected to the interior of the guide groove 14. A sliding hole is provided on the surface of the main sleeve 8, and a main drain hole 16 is provided on the surface of the buffer disk 13. The inner wall of the guide groove 14 is slidably connected to the surface of the secondary trapezoidal block 12. The lifting groove 7 guides the movement of the main trapezoidal block 11, and the guide groove 14 guides the movement of the secondary trapezoidal block 12. The main drain hole 16 facilitates the flow of water through the buffer disk 13.

[0030] A sliding rod 15 that slides with the sliding hole is fixed to the outer side of the main piston disc 9, and the return spring 10 is sleeved on the outside of the sliding rod 15. The sliding rod 15 will slide along the inner wall of the sliding hole, thereby improving the stability of the main piston disc 9 during movement. The sliding rod 15 limits the return spring 10 when it is compressed, thereby preventing it from being damaged due to excessive bending, thereby further extending the service life of the return spring 10.

[0031] The impact-resistant component 5 includes a wear-resistant disc 51, which is fixed to one end of the buffer disc 13 by screws. The surface of the wear-resistant disc 51 is slidably connected to the inner wall of the water inlet pipe 2. The surface of the wear-resistant disc 51 is provided with an auxiliary drain hole 52 connected to the interior of the main drain hole 16. A wear-resistant tube 53 that slides with the main drain hole 16 is fixed at one end of the wear-resistant disc 51. The auxiliary drain hole 52 is convenient for water to flow through the wear-resistant disc 51. The wear-resistant disc 51 prevents water from directly impacting the buffer disc 13, slowing down the wear rate of the buffer disc 13. The wear-resistant tube 53 prevents water from directly flowing through the main drain hole 16, slowing down the wear rate of the main drain hole 16, thereby extending the service life of the buffer disc 13. The impact-resistant component 5 can be replaced by removing the screws, which is convenient for extending the service life of the buffer disc 13.

[0032] The auxiliary component 6 includes a connecting ring 61 and a fixing component 64. The connecting ring 61 is slidably arranged on the inner wall of the water outlet pipe 3. A filter screen 62 is fixedly arranged on the inner wall of the connecting ring 61. There are two filter screens 62. A slot 63 is provided on the surface of the connecting ring 61. The filter screen 62 appropriately buffers the water flow and blocks the falling screws or impurities in the water flow to prevent the screws or impurities from damaging other valves on the pipeline, which is safer.

[0033] The fixing assembly 64 includes a secondary sleeve 641 and a through groove 647. The secondary sleeve 641 is fixedly arranged on the surface of the water outlet pipe 3. One end of the secondary sleeve 641 is rotatably connected to the driving cylinder 642 through a sealed bearing. One end of the driving cylinder 642 is provided with a threaded groove 643. The inner wall of the threaded groove 643 is threadedly connected with a screw 644. One end of the screw 644 is fixedly provided with an insert 646 that engages with the slot 63. The through groove 647 is provided on the surface of the water outlet pipe 3. The inner wall of the through groove 647 is slidably connected to the surface of the insert 646. When the driving cylinder 642 is rotated, the driving cylinder 642 drives the screw 644 to move upward, and the screw 644 drives the insert 646 to move upward, prompting the insert 646 to disengage from the slot 63, thereby releasing the fixation of the insert 646 on the connecting ring 61, making it easy to remove the connecting ring 61 and clean screws or impurities. The through groove 647 guides the insert 646 to prevent the screw 644 from rotating.

[0034] The other end of the driving cylinder 642 is provided with an observation hole 648 that is connected to the inside of the thread groove 643. An observation window 649 is fixedly provided on the inner wall of the observation hole 648. A secondary piston disk 645 is fixedly provided on the surface of the screw 644. The surface of the secondary piston disk 645 is slidingly connected to the inner wall of the secondary sleeve 641. The observation window 649 and the observation hole 648 facilitate observation of the position of the screw 644. The secondary piston disk 645 prevents liquid leakage and avoids water flow impacting the observation window 649.

[0035] A connecting tube 17 is fixedly provided at one end of the main sleeve 8, and a pressure sensor plate 18 is fixedly provided on the inner wall of the connecting tube 17. The connecting tube 17 is sleeved on the outside of the slide rod 15, and a collecting box 19 is fixedly provided on the surface of the connecting tube 17. A single-chip microcomputer and a wireless wifi module are fixedly provided inside the collecting box 19. A warning light 20 is fixedly provided at one end of the connecting tube 17. The warning light 20, the wireless wifi module and the pressure sensor plate 18 are all electrically connected to the single-chip microcomputer. When the buffer disk 13 is subjected to the impact force of the water flow, the buffer disk 13 is pushed and drives the main piston disk 9 to move. The main piston disk 9 pushes the slide rod 15 to move. When the slide rod 15 is against the pressure sensor plate 18, the pressure value detected by the pressure sensor plate 18 is greater than zero, and it indicates that the impact force of the water flow is too large. The pressure sensor plate 18 will transmit the pressure value to the single-chip microcomputer, and the single-chip microcomputer starts the warning light 20 to warn, so that the workers can quickly locate the valve body 1. The single-chip microcomputer sends a warning to the remote terminal through the wireless wifi module to remind the workers to deal with it in time, which is convenient to use.

[0036] During use, the water flow will impact the buffer disk 13 when entering the water inlet pipe 2. The moving buffer disk 13 pushes the inclined surface of the main trapezoidal block 11 through the inclined surface of the secondary trapezoidal block 12, prompting the main trapezoidal block 11 to move away from the buffer disk 13. The main trapezoidal block 11 compresses the reset spring 10 through the main piston disk 9. The elastic force generated by the deformation of the reset spring 10 will neutralize the impact force of the water flow, reduce the impact force of the water flow, and achieve buffering. The main piston disk 9 isolates the reset spring 10 from the water flow to prevent the reset spring 10 from being covered with scale or rust, thereby extending the service life of the reset spring 10 and ensuring the elastic effect of the reset spring 10.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A buffer-type mechanical valve, comprising a valve body (1), characterized in that: The liquid inlet end of the valve body (1) is provided with a water inlet pipe (2), the liquid outlet end of the valve body (1) is provided with a water outlet pipe (3), the surface of the water inlet pipe (2) is provided with a lifting groove (7), the top of the lifting groove (7) is provided with a main sleeve (8), the inner wall of the main sleeve (8) is slidably connected with a main piston disc (9), a return spring (10) is provided between the main piston disc (9) and the main sleeve (8), the inner side of the main piston disc (9) is provided with a main trapezoidal block (11) that slides with the lifting groove (7), the inclined surface of the main trapezoidal block (11) is slidably connected with a secondary trapezoidal block (12), one side of the secondary trapezoidal block (12) is provided with a buffer disc (13) that slides with the inner wall of the water inlet pipe (2), and the inner wall of the water inlet pipe (2) is provided with a guide groove (14).

2. The buffer-type mechanical valve according to claim 1, characterized in that: An impact-resistant component (5) is provided inside the water inlet pipe (2), an auxiliary component (6) is provided inside the water outlet pipe (3), one end of the water inlet pipe (2) and one end of the water outlet pipe (3) are both provided with a connecting flange (4), the interior of the lifting groove (7) is connected to the interior of the guide groove (14), a sliding hole is provided on the surface of the main sleeve (8), a main drain hole (16) is provided on the surface of the buffer disk (13), and the inner wall of the guide groove (14) is slidably connected to the surface of the auxiliary trapezoidal block (12).

3. The buffer-type mechanical valve according to claim 2, characterized in that: A sliding rod (15) that slides with the sliding hole is provided on the outer side of the main piston disc (9), and the return spring (10) is sleeved on the outside of the sliding rod (15).

4. The buffer-type mechanical valve according to claim 2, characterized in that: The impact-resistant component (5) includes a wear-resistant disc (51), which is set on one end of the buffer disc (13) by screws, and the surface of the wear-resistant disc (51) is slidably connected to the inner wall of the water inlet pipe (2). The surface of the wear-resistant disc (51) is provided with a secondary drain hole (52) connected to the inside of the main drain hole (16), and one end of the wear-resistant disc (51) is provided with a wear-resistant tube (53) that slides with the main drain hole (16).

5. The buffer-type mechanical valve according to claim 2, characterized in that: The auxiliary component (6) comprises a connecting ring (61) and a fixing component (64); the connecting ring (61) is slidably arranged on the inner wall of the water outlet pipe (3); a filter screen (62) is provided on the inner wall of the connecting ring (61); and a slot (63) is provided on the surface of the connecting ring (61).

6. The buffer-type mechanical valve according to claim 5, characterized in that: The fixing assembly (64) includes a secondary sleeve (641) and a through groove (647). The secondary sleeve (641) is arranged on the surface of the water outlet pipe (3). One end of the secondary sleeve (641) is rotatably connected to a driving cylinder (642) via a sealing bearing. One end of the driving cylinder (642) is provided with a threaded groove (643). The inner wall of the threaded groove (643) is threadedly connected to a screw rod (644). One end of the screw rod (644) is provided with an insert (646) engaged with the slot (63). The through groove (647) is provided on the surface of the water outlet pipe (3). The inner wall of the through groove (647) is slidably connected to the surface of the insert rod (646).

7. The buffer-type mechanical valve according to claim 6, characterized in that: The other end of the driving cylinder (642) is provided with an observation hole (648) connected to the interior of the threaded groove (643), and the inner wall of the observation hole (648) is provided with an observation window (649). The surface of the screw (644) is provided with a secondary piston disc (645), and the surface of the secondary piston disc (645) is slidably connected to the inner wall of the secondary sleeve (641).

8. The buffer-type mechanical valve according to claim 3, characterized in that: A connecting tube (17) is provided at one end of the main sleeve (8), and a pressure sensor plate (18) is provided on the inner wall of the connecting tube (17). The connecting tube (17) is sleeved on the outside of the slide rod (15). A collector box (19) is provided on the surface of the connecting tube (17), and a single-chip microcomputer and a wireless wifi module are respectively provided inside the collector box (19). A warning light (20) is provided at one end of the connecting tube (17), and the warning light (20), the wireless wifi module and the pressure sensor plate (18) are all electrically connected to the single-chip microcomputer.

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