Large-flow direct-drive digital valve

Abstract

The utility model belongs to the technical field of digital valves, and discloses a large-flow direct-drive digital valve which comprises a base and a valve shell, a water inlet flange is fixedly welded to one side of the valve shell, a water outlet flange is fixedly welded to the bottom face of the valve shell, a drive assembly is arranged in the valve shell, and the drive assembly is fixedly connected with the valve shell. The driving assembly comprises a partition plate fixed in the valve shell, the interior of the valve shell is divided into a water guide cavity and a mounting cavity, a valve cylinder is fixedly connected to the side, close to the water inlet flange, of the interior of the valve shell, and a plurality of sets of water outlets arranged at equal intervals are formed in the surface of the valve cylinder. The motor drives the screw to rotate, the threaded sleeve drives the valve element to move axially, flow adjustment is achieved, by arranging the self-locking assembly, when power is off, the tooth block pops up under the action of the spring and is meshed with the tooth plate, mechanical locking is formed, the valve element is prevented from moving due to hydraulic fluctuation or external force, and the stability of the adjusted valve element is improved.

Description

Technical Field

[0001] This utility model belongs to the field of digital valve technology, specifically a high-flow direct-drive digital valve. Background Technology

[0002] The digital valve is a combined flow control valve. The regulating component makes the weight coefficient of each bit of the four binary numbers in a ratio of 8:4:2:1. This is achieved by the four throttling orifice areas being in a ratio of 8:4:2:1. The four binary codes composed of the current control signal supplied to the electromagnet, ranging from 0000 to 1111, can form 16 different flow states. In addition, the throttling orifice area can be easily enlarged and reduced while maintaining the ratio. This valve has a short switching time, high switching frequency, strong anti-interference ability, and is easy to manufacture. It is suitable for regulating the flow of fluid in computer or digital control systems for fluids.

[0003] In existing high-flow direct-drive digital valve applications, when the system loses power, due to the lack of an effective protection mechanism, the valve core may be displaced due to external forces or fluid pressure fluctuations, leading to problems such as fluid leakage and equipment malfunction, which poses a threat to production safety and stable equipment operation.

[0004] Therefore, a high-flow direct-drive digital valve is proposed to address the above issues. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a high-flow direct-drive digital valve with a self-locking structure. This structure enables the valve core to be automatically locked when power is off, effectively preventing valve core displacement, avoiding fluid leakage and equipment malfunction, and improving the safety and stability of the digital valve.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-flow direct-drive digital valve, including a base and a valve housing, wherein an inlet flange is fixedly welded to one side of the valve housing, an outlet flange is fixedly welded to the bottom surface of the valve housing, and a drive assembly is provided inside the valve housing.

[0007] The drive assembly includes a partition fixed inside the valve housing, dividing the interior of the valve housing into a water guiding chamber and an installation chamber. A valve cylinder is fixedly connected to the side of the valve housing near the water inlet flange, and the surface of the valve cylinder has several sets of water outlets arranged at equal intervals. A valve core slides inside the valve cylinder, and a threaded sleeve is fixedly connected to the side of the valve core. The threaded sleeve penetrates the surface of the partition and is connected to a slider disposed inside the installation chamber. A self-locking assembly is provided inside the slider. The self-locking assembly includes toothed blocks symmetrically slidably connected inside the slider. A toothed plate is symmetrically fixedly connected to the side of the valve housing near the toothed blocks. A magnetic block is fixedly connected inside the toothed blocks. An electromagnet is fixedly installed inside the slider near the magnetic block.

[0008] Preferably, a sliding rod is fixedly connected to each of the four corners of the inner side of the tooth block, and the slider has an insertion groove for sliding the sliding rod. A spring is sleeved on the outer side of the sliding rod, and the spring is in a compressed state.

[0009] Preferably, a screw is screwed into the inside of the threaded sleeve, and a motor is installed on one side of the valve housing surface, with the output end of the motor connected to the screw.

[0010] Preferably, a matching groove is provided inside the valve housing on the side near the slider, and the toothed plate is embedded in this groove.

[0011] Preferably, a sealing ring gasket is fixed inside the partition plate on the side near the through groove of the threaded sleeve, and a sealing gasket A is fixed on the outer surface of the valve core.

[0012] Preferably, a valve cover is mounted on the upper surface of the valve housing by fastening bolts, and a sealing gasket B is installed between the valve housing and the valve cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model achieves flow regulation by setting a self-locking component. The motor drives the screw to rotate, and the threaded sleeve drives the valve core to move axially. By setting a self-locking component, when the power is off, the tooth block pops out under the action of the spring and meshes with the tooth plate to form a mechanical lock, preventing the valve core from being displaced due to hydraulic fluctuations or external forces, and improving the stability of the valve core after adjustment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the valve housing in this utility model;

[0017] Figure 3This is a schematic diagram of the structure of the threaded sleeve and the slider in this utility model;

[0018] Figure 4 This is a cross-sectional view of the slider in this utility model.

[0019] In the diagram: 1. Valve housing; 2. Drive assembly; 21. Valve cylinder; 22. Valve core; 23. Threaded sleeve; 24. Screw; 25. Motor; 26. Slider; 27. Partition plate; 3. Self-locking assembly; 31. Toothed plate; 32. Toothed block; 33. Magnetic block; 34. Electromagnet; 35. Spring; 36. Slide rod; 4. Inlet flange; 5. Outlet flange; 6. Valve cover. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 4 As shown, this utility model provides a high-flow direct-drive digital valve, including a valve housing 1, an inlet flange 4 fixedly welded to one side of the valve housing 1, an outlet flange 5 fixedly welded to the bottom surface of the valve housing 1, and a drive assembly 2 disposed inside the valve housing 1.

[0022] The drive assembly 2 includes a partition 27 fixed inside the valve housing 1, dividing the interior of the valve housing 1 into a water guiding chamber and an installation chamber. A valve cylinder 21 is fixedly connected to the side of the valve housing 1 near the inlet flange 4, and the surface of the valve cylinder 21 has several sets of outlets arranged at equal intervals. A valve core 22 slides inside the valve cylinder 21, and a threaded sleeve 23 is fixedly connected to the side of the valve core 22. The threaded sleeve 23 penetrates the surface of the partition 27 and is connected to a slider 26 located inside the installation chamber. A self-locking assembly 3 is provided inside the slider 26. The self-locking assembly 3 includes toothed blocks 32 symmetrically slidably connected inside the slider 26. A toothed plate 31 is symmetrically fixedly connected to the side of the valve housing 1 near the toothed blocks 32. A magnetic block 33 is fixedly connected inside the toothed blocks 32. A magnetic block 33 is located inside the slider 26 near the magnetic block 33. An electromagnet 34 is fixedly installed on one side. When the digital valve is in use, water is delivered to the inside of the valve cylinder 21 through the inlet flange 4 and discharged through the outlet on the surface of the valve cylinder 21 to the outlet flange 5. The valve core 22 is pushed by the threaded sleeve 23 to adjust the position of the valve core 22 and change the number of blockages of the outlet by the valve core 22, thereby regulating the flow rate. During normal operation, the electromagnet 34 is energized, generating a magnetic attraction that overcomes the elastic force of the spring 35 and attracts the tooth block 32 into the slider 26. The tooth block 32 is separated from the tooth plate 31, and the position of the valve core 22 can be adjusted by moving the slider 26. When the power is off, the electromagnet 34 is de-energized, and the tooth block 32 pops out under the action of the spring 35 and engages with the tooth plate 31 to form a mechanical lock, preventing the valve core 22 from being displaced due to hydraulic fluctuations or external forces.

[0023] Slide rods 36 are fixedly connected to the four corners of the inner side of the tooth block 32, and the slider 26 has an insertion groove for sliding the slide rods 36. A spring 35 is sleeved on the outside of the slide rod 36 and the spring 35 is in a compressed state. When the tooth block 32 moves, it will drive the slide rods 36 to slide inside the insertion groove, thereby improving the stability of the movement of the tooth block 32.

[0024] like Figures 1 to 4 As shown, a screw 24 is screwed into the inside of the threaded sleeve 23. A motor 25 is installed on one side of the valve body 1. The output end of the motor 25 is connected to the screw 24. By starting the motor 25, the screw 24 is driven to rotate, which in turn drives the valve core 22 to move axially through the threaded sleeve 23, thereby achieving flow regulation.

[0025] The valve housing 1 has a matching groove on the side near the slider 26, and the toothed plate 31 is embedded in the groove. The movement of the slider 26 is limited by the groove, ensuring that the slider 26 moves stably along the axial direction of the threaded sleeve 23.

[0026] A sealing ring gasket is fixed inside the partition 27 on the side near the through groove of the threaded sleeve 23, and a sealing gasket A is fixed on the outer surface of the valve core 22. The sealing performance between the partition 27 and the threaded sleeve 23, as well as between the valve core 22 and the valve cylinder 21, is ensured by the sealing gasket A and the sealing ring gasket.

[0027] A valve cover 6 is mounted on the upper surface of the valve body 1 by fastening bolts. A sealing gasket B is installed between the valve body 1 and the valve cover 6. The valve cover 6 can be removed by loosening multiple sets of fastening bolts, which facilitates the inspection and maintenance of the internal equipment of the valve body 1.

[0028] Working principle and process: When the digital valve is in use, the motor 25 is started, which simultaneously energizes the electromagnet 34 and creates a magnetic attraction with the magnetic block 33. This overcomes the elastic force of the spring 35 and attracts the toothed block 32 into the slider 26. The toothed block 32 separates from the toothed plate 31. The motor 25 drives the screw 24 to rotate, which drives the valve core 22 to move axially through the threaded sleeve 23, thereby achieving flow regulation. After the regulation is completed, the motor 25 stops supplying power, and the electromagnet 34 is de-energized. The toothed block 32 pops out under the action of the spring 35 and engages with the toothed plate 31, forming a mechanical lock to prevent the valve core 22 from being displaced due to hydraulic fluctuations or external forces.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-flow direct-drive digital valve, comprising a valve housing (1), wherein an inlet flange (4) is fixedly welded to one side of the valve housing (1), and an outlet flange (5) is fixedly welded to the bottom surface of the valve housing (1), characterized in that: The valve housing (1) is provided with a drive assembly (2); The drive assembly (2) includes a partition (27) fixed inside the valve housing (1), dividing the interior of the valve housing (1) into a water guiding chamber and an installation chamber. A valve cylinder (21) is fixedly connected to the side of the valve housing (1) near the inlet flange (4), and the surface of the valve cylinder (21) has several sets of water outlets arranged at equal intervals. A valve core (22) slides inside the valve cylinder (21), and a threaded sleeve (23) is fixedly connected to the side of the valve core (22), and the threaded sleeve (23) penetrates the partition (27). 7) The surface is connected to the slider (26) located inside the mounting chamber. The slider (26) is provided with a self-locking assembly (3). The self-locking assembly (3) includes a toothed block (32) symmetrically slidably connected inside the slider (26). A toothed plate (31) is symmetrically fixedly connected to the side of the valve housing (1) near the toothed block (32). A magnetic block (33) is fixedly connected inside the toothed block (32). An electromagnet (34) is fixedly installed inside the slider (26) near the magnetic block (33).

2. The high-flow direct-drive digital valve according to claim 1, characterized in that: Each of the four corners of the inner side of the toothed block (32) is fixedly connected with a slide rod (36), and the slider (26) has an insertion groove for sliding the slide rod (36). A spring (35) is sleeved on the outer side of the slide rod (36), and the spring (35) is in a compressed state.

3. The high-flow direct-drive digital valve according to claim 2, characterized in that: The threaded sleeve (23) is screwed with a screw rod (24) inside. A motor (25) is installed on one side of the valve body (1) and the output end of the motor (25) is connected to the screw rod (24).

4. The high-flow direct-drive digital valve according to claim 3, characterized in that: The valve housing (1) has a matching groove on the side near the slider (26) inside, and the toothed plate (31) is embedded in the groove.

5. The high-flow direct-drive digital valve according to claim 4, characterized in that: A sealing ring gasket is fixed inside the partition plate (27) on the side near the through groove of the threaded sleeve (23), and a sealing gasket A is fixed on the outer surface of the valve core (22).

6. The high-flow direct-drive digital valve according to claim 1, characterized in that: A valve cover (6) is mounted on the upper surface of the valve housing (1) by fastening bolts, and a sealing gasket B is installed between the valve housing (1) and the valve cover (6).

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