Electromagnetic valve

Abstract

The utility model discloses an electromagnetic valve which comprises a valve body, a valve cover is installed at the top end of the valve body, a connecting base is arranged in the center of the top end of the valve cover, a first upper valve box is arranged at the top end of the connecting base, a second upper valve box is arranged on the outer wall of one side of the first upper valve box, and a piece containing box is arranged at the bottom end of the second upper valve box. A valve cavity is formed in the valve body, a valve plate is arranged in the portion, above the valve cavity, of the valve deck, a belt transmission structure is arranged at the top of the first upper valve box, one end of the belt transmission structure extends into the second upper valve box, a lead screw is arranged at the bottom end of the belt transmission structure in the first upper valve box, and a nut pair is installed on the outer wall of the upper end of the lead screw in a threaded mode. A lifting plate is arranged below the lead screw, and connecting rods are arranged on the two sides of the top end of the lifting plate. According to the electromagnetic valve, the purpose of easily and accurately controlling the flow speed of fluid is achieved, the sealing performance of the electromagnetic valve in use is improved, and the electromagnetic valve is convenient to disassemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to a solenoid valve. Background Art

[0002] Solenoid valves are a type of industrial equipment that uses electromagnetic control. They are basic automation components used to control fluids. They are actuators and are not limited to hydraulics or pneumatics. Because solenoid valves can better control fluids, they can be widely used.

[0003] Reference publication number CN203614869U is a solenoid valve, which includes an upper valve body, a lower valve body, a valve core assembly and a bracket; the valve core assembly is arranged in a cavity formed by the upper valve body and the lower valve body; the bracket is connected to the lower valve body; a pressure sensor is arranged on the upper valve body. This solenoid valve is an electromagnetic control valve that allows fresh air to mix into automobile exhaust flow, has good sealing performance, simple structure and wide versatility. According to the above, although the solenoid valve can be well applied, it is usually not convenient to perform multi-stage deceleration lifting and lowering of the valve plate, and it is difficult to accurately control the flow rate of the fluid, which often troubles users. Utility Model Content

[0004] The purpose of the utility model is to provide a solenoid valve to solve the problem in the above background technology that although the solenoid valve can be well applied, it is usually not convenient to perform multi-stage deceleration lifting and lowering of the valve plate, and thus it is difficult to accurately control the fluid flow rate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solenoid valve comprises a valve body, a valve cover is installed on the top of the valve body, a connecting seat is arranged at the center position of the top of the valve cover, a first upper valve box is arranged on the top of the connecting seat, a second upper valve box is arranged on the outer wall of one side of the first upper valve box, a component box is arranged at the bottom end of the second upper valve box, a valve cavity is arranged inside the valve body, a valve plate is arranged inside the valve cover above the valve cavity, a belt transmission structure is arranged on the top of the first upper valve box, and one end of the belt transmission structure extends To the interior of the second upper valve box, a screw rod is provided at the bottom end of the belt transmission structure inside the first upper valve box, a nut pair is threadedly installed on the outer wall of the upper end of the screw rod, a lifting plate is provided below the screw rod, connecting rods are provided on both sides of the top of the lifting plate, and the end of the connecting rod away from the lifting plate is fixedly connected to the outer wall of the nut pair, a threaded inlet end is provided on the outer wall of one side of the valve body, a first sealing ring is provided on the outer wall of the threaded inlet end, a threaded outlet end is provided at the bottom end of the valve body, and a second sealing ring is provided at the bottom end of the threaded outlet end.

[0006] Preferably, a positioning seat is provided on the outer wall of the upper end of the valve body, and lower threaded seats with equal spacing are provided on the outer wall of the positioning seat. Upper pin seats are provided on the outer wall of the valve cover above the lower threaded seats, and a locking bolt is installed on the top of the upper pin seat. The bottom end of the locking bolt passes through the upper pin seat and is threadedly connected to the lower threaded seat. The solenoid valve can be disassembled and maintained by screwing the lower end of the locking bolt out to the outside of the lower threaded seat.

[0007] Preferably, a base plate is provided on the inner wall of one side of the second upper valve box, and a first guide shaft is rotatably mounted on one side of the top end of the base plate, so that the first driving gear can be placed through the setting of the first guide shaft.

[0008] Preferably, an electromagnetic rotary drive component is provided inside the storage box, and the top end of the electromagnetic rotary drive component extends to the inside of the second upper valve box and is connected to the bottom end of the first guide shaft. The electromagnetic rotary drive component is provided to drive the first guide shaft to rotate.

[0009] Preferably, a valve stem is provided at the center position of the bottom end of the lifting plate, and the bottom end of the valve stem extends to the inside of the valve cover and is fixedly connected to the top end of the valve plate, so that the valve plate can be driven to be lifted and lowered by the arrangement of the valve stem.

[0010] Preferably, a second guide shaft is rotatably mounted on the top of the substrate on one side of the first guide shaft, and a third guide shaft is rotatably mounted on the top of the substrate on the second guide shaft away from the first guide shaft. The top of the third guide shaft is connected to one side of the bottom end of the belt transmission structure. The second guide shaft and the third guide shaft are arranged so as to place and process the first driven gear, the second driving gear and the second driven gear.

[0011] Preferably, two first driving gears are fixed on the outer wall of the first guide shaft, and a first driven gear is fixed on the outer wall of the second guide shaft on one side of the first driving gear. The first driven gear and the first driving gear are meshed with each other, and the first driven gear and the first driving gear are meshed with each other, so that the first driven gear can drive the first driven gear to rotate when the first driving gear rotates.

[0012] Preferably, a second driving gear is fixed on the outer wall of the second guide shaft between the first driven gears, and a second driven gear is fixed on the outer wall of the third guide shaft on one side of the second driving gear. The second driven gear and the second driving gear are meshed with each other, and the second driven gear and the second driving gear are meshed with each other so that the second driven gear can drive the second driven gear to rotate when the second driving gear rotates.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the solenoid valve not only achieves the purpose of easily and accurately controlling the flow rate of the fluid, but also improves the sealing performance of the solenoid valve when in use, and facilitates the disassembly and maintenance of the solenoid valve;

[0014] (1) The first guide shaft is driven to rotate by an electromagnetic rotary drive member, so that the first guide shaft drives the second guide shaft to rotate slowly through the first driving gear and the first driven gear, and the second guide shaft drives the third guide shaft to rotate further slowly through the second driving gear and the second driven gear, so that the third guide shaft drives the lead screw to rotate slowly through the belt transmission structure, and at this time, the nut pair slides on the outer wall of the lead screw, so that the nut pair drives the valve plate to slowly rise and fall through the connecting rod, the lifting plate and the valve stem, and the valve plate can accurately open and close the upper end of the valve cavity, thereby achieving the purpose of easily and accurately controlling the fluid flow rate;

[0015] (2) By setting the threaded inlet end and the threaded outlet end, the external water supply and drainage pipe is installed in a threaded connection manner, and the setting of the first sealing ring and the second sealing ring can seal the connection position between the threaded inlet end and the threaded outlet end and the external water supply and drainage pipe, thereby reducing the leakage of the fluid, thereby improving the sealing performance of the solenoid valve when in use;

[0016] (3) By rotating the locking bolt and screwing the lower end of the locking bolt out to the outside of the lower threaded seat, the valve cover can be pulled upward to remove it from the top of the valve body, thereby facilitating the disassembly and maintenance of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of the valve body of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the first upper valve box and the second upper valve box of the utility model;

[0021] Figure 5 It is a schematic diagram of the enlarged structure of the substrate of the utility model from top view.

[0022] In the figure: 1, valve body; 2, positioning seat; 3, valve cover; 4, lower thread seat; 5, upper pin seat; 6, locking bolt; 7, connecting seat; 8, first upper valve box; 9, second upper valve box; 10, storage box; 11, electromagnetic rotary drive member; 12, threaded inlet end; 13, first sealing ring; 14, threaded outlet end; 15, second sealing ring; 16, valve cavity; 17, valve stem; 18, valve plate; 19, belt transmission structure; 20, screw rod; 21, nut pair; 22, connecting rod; 23, lifting plate; 24, base plate; 25, first guide shaft; 26, second guide shaft; 27, third guide shaft; 28, first driving gear; 29, first driven gear; 30, second driving gear; 31, second driven gear. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides an embodiment: a solenoid valve, including a valve body 1, a positioning seat 2 is arranged on the outer wall of the upper end of the valve body 1, and lower thread seats 4 with equal spacing are arranged on the outer wall of the positioning seat 2, and upper pin seats 5 are arranged on the outer wall of the valve cover 3 above the lower thread seats 4, and a locking bolt 6 is installed on the top of the upper pin seat 5, and the bottom end of the locking bolt 6 passes through the upper pin seat 5 and is threadedly connected with the lower thread seat 4;

[0025] When in use, the solenoid valve can be disassembled and maintained by screwing the lower end of the locking bolt 6 out to the outside of the lower threaded seat 4;

[0026] A valve cover 3 is installed at the top of the valve body 1, a connecting seat 7 is arranged at the center of the top of the valve cover 3, a first upper valve box 8 is arranged at the top of the connecting seat 7, a second upper valve box 9 is arranged on the outer wall of one side of the first upper valve box 8, a base plate 24 is arranged on the inner wall of one side of the second upper valve box 9, and a first guide shaft 25 is rotatably installed on one side of the top of the base plate 24;

[0027] When in use, the first guide shaft 25 is arranged so as to place the first driving gear 28;

[0028] An electromagnetic rotary drive member 11 is disposed inside the component box 10. The top end of the electromagnetic rotary drive member 11 extends to the inside of the second upper valve box 9 and is connected to the bottom end of the first guide shaft 25.

[0029] When in use, the electromagnetic rotating driving member 11 is arranged to drive the first guide shaft 25 to rotate;

[0030] A second guide shaft 26 is rotatably mounted on the top of the base plate 24 on one side of the first guide shaft 25, and a third guide shaft 27 is rotatably mounted on the top of the base plate 24 on the side of the second guide shaft 26 away from the first guide shaft 25. The top of the third guide shaft 27 is connected to one side of the bottom end of the belt transmission structure 19.

[0031] When in use, the second guide shaft 26 and the third guide shaft 27 are arranged so as to place the first driven gear 29, the second driving gear 30 and the second driven gear 31;

[0032] Two first driving gears 28 are fixed on the outer wall of the first guide shaft 25, and first driven gears 29 are fixed on the outer wall of the second guide shaft 26 on one side of the first driving gears 28. The first driven gears 29 mesh with the first driving gears 28.

[0033] When in use, the first driven gear 29 is meshed with the first driving gear 28 so that the first driven gear 29 is driven to rotate when the first driving gear 28 rotates;

[0034] A second driving gear 30 is fixed on the outer wall of the second guide shaft 26 between the first driven gears 29, and a second driven gear 31 is fixed on the outer wall of the third guide shaft 27 on one side of the second driving gear 30. The second driven gear 31 meshes with the second driving gear 30.

[0035] When in use, the second driven gear 31 is meshed with the second driving gear 30 so that the second driven gear 31 is driven to rotate when the second driving gear 30 rotates;

[0036] A component box 10 is provided at the bottom end of the second upper valve box 9, a valve cavity 16 is provided inside the valve body 1, a valve plate 18 is provided inside the valve cover 3 above the valve cavity 16, a belt transmission structure 19 is provided at the top of the first upper valve box 8, one end of the belt transmission structure 19 extends to the inside of the second upper valve box 9, a screw rod 20 is provided at the bottom end of the belt transmission structure 19 inside the first upper valve box 8, a nut pair 21 is threadedly installed on the outer wall of the upper end of the screw rod 20, a lifting plate 23 is provided below the screw rod 20, a valve stem 17 is provided at the center position of the bottom end of the lifting plate 23, and the bottom end of the valve stem 17 extends to the inside of the valve cover 3 and is fixedly connected to the top end of the valve plate 18;

[0037] When in use, the valve stem 17 is arranged to drive the valve plate 18 to be raised and lowered;

[0038] Connecting rods 22 are provided on both sides of the top of the lifting plate 23, and one end of the connecting rod 22 away from the lifting plate 23 is fixedly connected to the outer wall of the nut pair 21. A threaded inlet end 12 is provided on the outer wall of one side of the valve body 1, and a first sealing ring 13 is provided on the outer wall of the threaded inlet end 12. A threaded outlet end 14 is provided at the bottom end of the valve body 1, and a second sealing ring 15 is provided at the bottom end of the threaded outlet end 14.

[0039] When the embodiment of the present application is used, firstly, by setting the threaded inlet end 12 and the threaded outlet end 14, the external water supply and drainage pipe can be installed by threaded connection, so as to quickly install and connect the solenoid valve, and the setting of the first sealing ring 13 and the second sealing ring 15 can seal the connection position between the threaded inlet end 12 and the threaded outlet end 14 and the external water supply and drainage pipe, so as to improve the sealing performance of the solenoid valve when in use, and then the first guide shaft 25 is driven to rotate by the electromagnetic rotary drive member 11, because the first driving gear 28 and the first driven gear 29 are meshed with each other, and the diameter of the first driving gear 28 is smaller than the diameter of the first driven gear 29, so that the first guide shaft 25 drives the second guide shaft 26 to rotate slowly through the first driving gear 28 and the first driven gear 29, and because the second driving gear 30 and the second driven gear 3 1 are meshed with each other, and the diameter of the second driving gear 30 is smaller than the diameter of the second driven gear 31, so that the second guide shaft 26 drives the third guide shaft 27 to further rotate slowly through the second driving gear 30 and the second driven gear 31, and the third guide shaft 27 can drive the screw rod 20 to rotate slowly through the belt transmission structure 19. At this time, the nut pair 21 is located on the outer wall of the screw rod 20 and slides slowly, so that the nut pair 21 drives the valve plate 18 to slowly rise and fall through the connecting rod 22, the lifting plate 23 and the valve stem 17, and the valve plate 18 can accurately open and close the upper end of the valve cavity 16 to accurately control the fluid flow rate. Finally, by rotating the locking bolt 6, when the lower end of the locking bolt 6 is screwed out to the outside of the lower threaded seat 4, it is only necessary to pull the valve cover 3 upward to detach it from the top of the valve body 1, and the solenoid valve can be disassembled and maintained, thereby completing the use of the solenoid valve.

Claims

1. A solenoid valve, characterized in that: The valve body (1) comprises a valve cover (3) installed at the top end of the valve body (1), a connecting seat (7) is arranged at the center position of the top end of the valve cover (3), a first upper valve box (8) is arranged at the top end of the connecting seat (7), a second upper valve box (9) is arranged on the outer wall of one side of the first upper valve box (8), a storage box (10) is arranged at the bottom end of the second upper valve box (9), a valve cavity (16) is arranged inside the valve body (1), a valve plate (18) is arranged inside the valve cover (3) above the valve cavity (16), a belt transmission structure (19) is arranged on the top of the first upper valve box (8), one end of the belt transmission structure (19) extends to the inside of the second upper valve box (9), and the first upper valve box (8) is provided with a plurality of connecting rods. ) is provided with a screw rod (20) at the bottom end of the belt transmission structure (19) inside, a nut pair (21) is threadedly installed on the outer wall of the upper end of the screw rod (20), a lifting plate (23) is provided below the screw rod (20), connecting rods (22) are provided on both sides of the top of the lifting plate (23), and the end of the connecting rod (22) away from the lifting plate (23) is fixedly connected to the outer wall of the nut pair (21), a threaded inlet end (12) is provided on the outer wall of one side of the valve body (1), a first sealing ring (13) is provided on the outer wall of the threaded inlet end (12), a threaded outlet end (14) is provided at the bottom end of the valve body (1), and a second sealing ring (15) is provided at the bottom end of the threaded outlet end (14).

2. A solenoid valve according to claim 1, characterized in that: A positioning seat (2) is arranged on the outer wall of the upper end of the valve body (1), and lower thread seats (4) with equal spacing are arranged on the outer wall of the positioning seat (2). An upper pin seat (5) is arranged on the outer wall of the valve cover (3) above the lower thread seat (4), and a locking bolt (6) is installed at the top end of the upper pin seat (5), and the bottom end of the locking bolt (6) passes through the upper pin seat (5) and is threadedly connected to the lower thread seat (4).

3. The solenoid valve according to claim 1, characterized in that: A base plate (24) is provided on the inner wall of one side of the second upper valve box (9), and a first guide shaft (25) is rotatably mounted on one side of the top end of the base plate (24).

4. A solenoid valve according to claim 3, characterized in that: An electromagnetic rotary drive component (11) is disposed inside the component storage box (10), and the top end of the electromagnetic rotary drive component (11) extends to the inside of the second upper valve box (9) and is connected to the bottom end of the first guide shaft (25).

5. The solenoid valve according to claim 1, characterized in that: A valve stem (17) is provided at the center position of the bottom end of the lifting plate (23), and the bottom end of the valve stem (17) extends to the inside of the valve cover (3) and is fixedly connected to the top end of the valve plate (18).

6. The solenoid valve according to claim 3, characterized in that: A second guide shaft (26) is rotatably mounted on the top of the base plate (24) on one side of the first guide shaft (25), and a third guide shaft (27) is rotatably mounted on the top of the base plate (24) on the side of the second guide shaft (26) away from the first guide shaft (25), wherein the top of the third guide shaft (27) is connected to one side of the bottom end of the belt transmission structure (19).

7. A solenoid valve according to claim 6, characterized in that: Two first driving gears (28) are fixed on the outer wall of the first guide shaft (25), and first driven gears (29) are fixed on the outer wall of the second guide shaft (26) on one side of the first driving gear (28). The first driven gears (29) and the first driving gears (28) are meshed with each other.

8. A solenoid valve according to claim 7, characterized in that: A second driving gear (30) is fixed on the outer wall of the second guide shaft (26) between the first driven gears (29), and a second driven gear (31) is fixed on the outer wall of the third guide shaft (27) on one side of the second driving gear (30), and the second driven gear (31) and the second driving gear (30) are meshed with each other.

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