Integrated micro pneumatic solenoid valve

Abstract

The utility model relates to the technical field of pneumatic control discloses an integrated miniature pneumatic electromagnetic valve, including the valve body, the bottom of valve body is connected with the air inlet pipe, the bottom end of air inlet pipe is connected with the extension pipe, the bottom end of extension pipe rotatably connects with the rotary pipe, the top of valve body is equipped with two gas outlets, the front and back sides of valve body outer wall all are fixedly connected with a plurality of support plates, the outer wall of front side support plate is fixedly connected with the fixed link, the outer wall of back side support plate is fixedly connected with the sleeve, the outer wall of fixed link and sleeve all are fixedly connected with the connecting plate, the adjacent side of connecting plate is fixedly connected with the pivot, the outer wall of pivot is fixedly connected with the fixed plate. The utility model through the fixed ring to the gas pipeline is firmly clamped, and the cooperation rotary pipe realizes the multi -angle adjustment of air inlet interface, has solved the problem that the pipeline will loosen and the pipe laying difficult.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic control technology, and in particular to an integrated miniature pneumatic solenoid valve. Background Technology

[0002] Miniature pneumatic solenoid valves are key components in industrial automation control and are widely used in medical devices, precision electronics manufacturing, and automated production lines. Their main function is to control the opening, closing, reversing, and flow distribution of compressed air pipelines through electromagnetic force, thereby driving various pneumatic actuators to complete predetermined actions. The equipment has extremely strict limitations on installation space, which places extremely high demands on the miniaturization and integration of the valve body structure.

[0003] In actual long-term operation, solenoid valves need to switch on and off at high frequency in response to control signals. This process is accompanied by continuous high-frequency mechanical vibration. When connecting external air pipes, most existing miniature pneumatic solenoid valves rely solely on thread engagement or simple plug-and-play buckles at the joints for fixation. They lack effective external auxiliary support structures and targeted anti-vibration and anti-loosening mechanisms. This causes the air pipe joints to loosen under long-term vibration loads or even fall off the valve body. This not only causes gas leakage and structural pressure instability, but in severe cases, it can also cause the entire automated equipment to shut down, increasing maintenance costs and reducing production efficiency.

[0004] Therefore, this utility model proposes an integrated miniature pneumatic solenoid valve to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problem that the air outlet pipe connection of the existing integrated miniature pneumatic solenoid valve may loosen and fall off under long-term high-frequency vibration, resulting in airtightness failure, this utility model aims to provide an integrated miniature pneumatic solenoid valve with an improved structure that can effectively solve the above-mentioned problem.

[0006] This utility model provides an integrated miniature pneumatic solenoid valve, including a valve body, an air inlet pipe connected to the bottom of the valve body, two air outlets opened on the top of the valve body, multiple support plates fixedly connected to the front and rear sides of the outer wall of the valve body, as well as a fixing rod, sleeve, connecting plate, rotating shaft, fixing plate, fixing ring, slider, slide groove, extension tube and rotating tube.

[0007] The fixing rod is fixedly connected to the outer wall of the multiple support plates located on the front side of the valve body, the sleeve is fixedly connected to the outer wall of the multiple support plates located on the rear side of the valve body, the connecting plate is fixedly connected to the outer wall of the multiple fixing rods and the sleeve, the rotating shaft is fixedly connected to the adjacent side of the multiple connecting plates, the fixing plate is fixedly connected to the outer wall of the multiple rotating shafts, and the fixing ring is fixedly connected to the adjacent side of the multiple fixing plates.

[0008] Furthermore, the slider is fixedly connected to the outer wall of the fixed ring located on the rear side of the valve body, and the groove is provided on the outer wall of the fixed ring located on the front side of the valve body. The slider slides inside the groove. The bottom end of the air intake pipe is connected to the extension pipe, and the bottom end of the extension pipe is rotatably connected to the rotating pipe.

[0009] Preferably, a locking plate is fixedly connected to the bottom of one side of each of the plurality of fixing rings, and a locking groove plate is fixedly connected to the bottom of the other side of the fixing ring. The locking plate is engaged with the inner wall of the locking groove plate. Through this engaging structure, the fixed ring after closing can be further locked to prevent relative displacement in the horizontal direction.

[0010] Preferably, each of the inner walls of the plurality of fixed rings is fixedly connected with a rubber ring. The rubber ring can use its own elastic deformation to tightly fit the outer wall of the air outlet pipe, thereby increasing friction to prevent loosening and playing the role of buffering, shock absorption and protecting the pipe surface.

[0011] Preferably, the bottom of the outer wall of the extension tube is provided with an embedding groove, which serves as the track foundation for the rotary connection, providing space and guidance for the installation and rotation of the rotating tube.

[0012] Preferably, a rotating ring is fixedly connected to the top end of the rotating tube, and the rotating ring is rotatably connected inside the embedding groove, so that the rotating tube can be freely rotated and adjusted 360 degrees relative to the extension tube, so as to adapt to the connection requirements of gas source pipelines in different directions.

[0013] Preferably, a second rubber ring is fixedly connected to the top of the rotating ring. The second rubber ring is rotatably sealed inside the embedded groove to ensure the airtightness of the connection part during rotation adjustment and gas supply, and to prevent gas leakage.

[0014] Preferably, both the top of the outer wall of the rotating tube and the outer wall of the extension tube are provided with fixing grooves, and the two fixing grooves are positioned correspondingly.

[0015] Preferably, the inner walls of the two fixed grooves are rotatably connected with protective rings. The protective rings are slidably fitted onto the inner walls of the fixed grooves and span the connection gap. This not only serves as a dustproof seal but also provides additional axial limiting support for the connection between the rotating tube and the extension tube.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problems of difficult installation of the air outlet pipe of the miniature pneumatic solenoid valve in a confined space and loosening and falling off due to high-frequency vibration of the equipment in the prior art. It achieves the effect of facilitating the quick disassembly and maintenance of the pipe by the operator, improving the seismic stability of the pipe connection, and preventing accidental loosening of the pipe.

[0017] 2. This utility model solves the problems of fixed and singular air intake interface direction, difficulty in adapting to complex pipe layout, and the need to disassemble and move valve body to adjust direction in the prior art by connecting an extension pipe with an embedding groove at the bottom of the air intake pipe and cooperating with a rotating pipe with a rotating ring at the top to be embedded and rotated in the embedding groove. It achieves the effect of enabling the air intake pipe interface to be freely rotated and adjusted 360 degrees without dead angle, flexibly adapting to various installation angles without disassembling the valve body, and improving the efficiency and convenience of on-site pipe laying.

[0018] 3. This utility model solves the problems in the prior art where direct clamping with metal clamps damages the outer wall of the pipe, causes gas leakage during the movement of the rotary joint, and allows dust and impurities to enter the connection gaps. It achieves the effect of providing a stable clamping force while using elastic buffer to protect the pipe surface, ensuring excellent airtightness during rotation adjustment and gas transmission, and effectively sealing and dustproofing precision connection parts. Attached Figure Description

[0019] Figure 1 This is a perspective view of an integrated miniature pneumatic solenoid valve proposed in this utility model; Figure 2 This is a schematic diagram of the sleeve of an integrated miniature pneumatic solenoid valve proposed in this utility model; Figure 3 This is a cross-sectional view of the fixing ring of an integrated miniature pneumatic solenoid valve proposed in this utility model. Figure 4 for Figure 3 Enlarged view of point A; Figure 5 This is a cross-sectional view of the protective ring of an integrated miniature pneumatic solenoid valve proposed in this utility model.

[0020] Legend: 1. Valve body; 2. Inlet pipe; 3. Outlet; 4. Support plate; 5. Rotating shaft; 6. Sleeve; 7. Fixing rod; 8. Connecting plate; 9. Fixing plate; 10. Fixing ring; 11. Rubber ring one; 12. Slide groove; 13. Slider; 14. Slot plate; 15. Slot plate; 16. Embedded groove; 17. Rotating ring; 18. Rotating tube; 19. Rubber ring two; 20. Protective ring; 21. Fixing groove; 22. Extension tube. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0022] Example: Please refer to Figures 1 to 5 This utility model provides an integrated miniature pneumatic solenoid valve, which aims to solve the problem that the connection of the miniature pneumatic solenoid valve may become loose or fall off due to working vibration when connected to an external pipeline in the prior art.

[0023] Please refer to Figure 1 and Figure 3 An integrated miniature pneumatic solenoid valve includes a valve body 1. The valve body 1, as a control component, can control the on / off, reversal, and flow distribution of the pneumatic circuit through electrical signals within a limited space, thereby driving the actuator to complete automated actions. At the same time, it simplifies the overall layout and improves reliability and maintenance efficiency. An air inlet pipe 2 is connected to the bottom of the valve body 1. The air inlet pipe 2 serves as a gas input channel for supplying gas to the valve body 1. At the same time, the valve body 1 controls the internal direction of the gas. Two air outlets 3 are opened at the top of the valve body 1. The air outlets 3 serve as gas output ports, allowing gas to be selectively discharged from one of the two air outlets 3 to drive external equipment. To prevent the air inlet pipe 2 and the subsequent external pipes of the two air outlets 3 from loosening during long-term operation, multiple support plates 4 are fixedly connected to the front and rear sides of the outer wall of the valve body 1.

[0024] Please refer to Figure 2 , Figure 3 and Figure 4A fixing rod 7 is fixedly connected to the outer wall of the support plate 4 on the front side of the valve body 1, serving as the front support base. A sleeve 6 is fixedly connected to the outer wall of the support plate 4 on the rear side of the valve body 1, serving as the rear support and operating base. A connecting plate 8 is fixedly connected to the outer walls of the fixing rod 7 and the sleeve 6, respectively, extending outward to provide more installation space. A rotating shaft 5 is fixedly connected to the adjacent side of multiple connecting plates 8, serving as a rotational pivot to provide the axis for the opening and closing movement of subsequent components. A fixing plate 9 is fixedly connected to the outer wall of the rotating shaft 5, rotating with the rotating shaft 5 and transmitting torque. A fixing ring 10 is fixedly connected to the adjacent side of the fixing plate 9. The fixed ring 10 forms an encircling structure to clamp and fix the gas outlet pipe. To guide the opening and closing and initially position the fixed ring 10, the slider 13 is fixedly connected to the outer wall of the fixed ring 10 on the rear side of the valve body 1. The slide groove 12 is opened on the outer wall of the fixed ring 10 on the front side of the valve body 1. When installing the gas outlet pipe, the operator pulls up the sleeve 6 to displace the fixed ring 10 on the rear side, causing the slider 13 to slide out from the slide groove 12, which facilitates the insertion of the pipe. After the pipe is installed in place, the fixed plate 9 and the fixed ring 10 are rotated downwards and reset by rotating the shaft 5, so that the slider 13 slides back into the slide groove 12, realizing the closed positioning and initial support of the two fixed rings 10.

[0025] To prevent the fixed rings 10 from loosening due to vibration during the high-frequency operation of the pneumatic valve, a clamping plate 15 is fixedly connected to the bottom of one side of the multiple fixed rings 10, and a clamping groove plate 14 is fixedly connected to the bottom of the other fixed ring 10. When the two fixed rings 10 close to clamp the pipe, the clamping plate 15 can accurately clamp onto the inner wall of the clamping groove plate 14. The clamping fit restricts the relative displacement of the fixed rings 10 in the horizontal direction, thereby preventing the fixed rings 10 from shaking during fixing. In addition, in order to protect the outer wall of the pipe from damage by hard metal while firmly clamping, a rubber ring 11 is fixedly connected to the inner wall of the multiple fixed rings 10. The rubber ring 11 utilizes its own elastic deformation characteristics to increase the friction between itself and the outer wall of the pipe, improve the stability of clamping, and also play a role in buffering and shock absorption and protecting the surface of the pipe.

[0026] As a preferred embodiment, please refer to Figure 1 , Figure 3 and Figure 5 The extension tube 22 is connected to the bottom end of the air inlet tube 2. The embedded groove 16 is opened at the bottom end of the outer wall of the extension tube 22. The top end of the rotating tube 18, as the access component of the external air source pipeline, is rotatably connected to the bottom end of the extension tube 22. The rotating ring 17 is fixedly connected to the top end of the rotating tube 18 and rotatably connected to the inside of the embedded groove 16. The rotating tube 18 can rotate freely 360 degrees relative to the extension tube 22 without disassembling the valve body 1, so that the operator can easily align the interface of the rotating tube 18 with the air source pipeline in any direction.

[0027] As a further preferred embodiment, the second rubber ring 19 is fixedly connected to the top of the rotating ring 17. The second rubber ring 19 rotates and seals inside the embedded groove 16. The elasticity of the second rubber ring 19 tightly fits the bottom or side wall of the embedded groove 16, effectively blocking the gas leakage path while allowing the rotating ring 17 to rotate.

[0028] In another preferred embodiment, fixing grooves 21 are respectively formed on the top of the outer wall of the rotating tube 18 and the outer wall of the extension tube 22. The two fixing grooves 21 form an annular groove structure with corresponding upper and lower parts. The protective ring 20 is rotatably connected to the inner wall of the two fixing grooves 21 and slides in fit with the inner wall of the fixing groove 21. The protective ring 20 not only plays a dustproof sealing role by covering the connection gap, but also provides additional axial limit and support for the rotational connection between the extension tube 22 and the rotating tube 18 by bridging the gap. This will not hinder the normal rotational adjustment of the rotating tube 18, and will also improve the reliability of the overall connection.

[0029] Working principle: When the integrated micro pneumatic solenoid valve is in working state, the valve body 1 receives the electrical signal from the external control, and the electromagnetic drive valve core inside the valve body 1 moves, thereby controlling the opening and closing, reversing and flow distribution of the pneumatic circuit. The gas enters the extension tube 22 through the rotating tube 18, and then is delivered to the inside of the valve body 1 through the air inlet tube 2. The valve body 1 guides the gas according to the control logic, so that the gas is selectively discharged from one of the two air outlets 3, thereby driving the subsequently connected actuators to complete the automated action. When installing and fixing the air outlet pipe, the operator lifts the sleeve 6, which moves the fixing ring 10 on the rear side of the valve body 1, causing the slider 13 on the outer wall of the fixing ring 10 to slide out from the inside of the slide groove 12, thereby separating the two fixing rings 10 to make room for installation. After the pipe is placed, the operator rotates the rotating shaft 5, which drives the fixing plate 9 and the fixing ring 10 to rotate downwards and reset, so that the slider 13 slides back smoothly into the slide groove 12, achieving initial support and enclosure for the pipe. The clamping plate 15 at the bottom of the fixing ring 10 is precisely engaged in the inner wall of the clamping groove plate 14 at the bottom of the other fixing ring 10, completing the secondary locking and fixing. The rubber ring 11 is in close contact with the outer wall of the pipe during the clamping process, providing buffer and anti-slip friction, effectively preventing the pipe from loosening due to the working vibration of the valve body 1. When connecting the two intake pipes, the operator does not need to disassemble or move the valve body 1 when facing air source interfaces in different directions. Simply rotate the rotating pipe 18, and the rotating ring 17 will rotate flexibly inside the embedded groove 16 at the bottom of the extension pipe 22, driving the rotating pipe 18 to achieve 360-degree directional adjustment. When the rotating pipe 18 is aligned with the required direction, the connection can be made. During this process, the rubber ring 19 always maintains a sealed contact to prevent gas leakage, and the protective ring 20 slides in the fixed groove 21, which not only ensures the smooth rotation of the rotating pipe 18, but also forms an effective dustproof and structural protection for the connection part.

Claims

1. An integrated micro pneumatic solenoid valve, comprising a valve body (1), an air inlet pipe (2) connected to the bottom of the valve body (1), two air outlets (3) opened on the top of the valve body (1), and multiple support plates (4) fixedly connected to the front and rear sides of the outer wall of the valve body (1). Its features are, A fixing rod (7) is fixedly connected to the outer wall of a plurality of support plates (4) located on the front side of the valve body (1). A sleeve (6) is fixedly connected to the outer wall of a plurality of support plates (4) located on the rear side of the valve body (1). A connecting plate (8) is fixedly connected to the outer wall of a plurality of fixing rods (7) and a sleeve (6). A rotating shaft (5) is fixedly connected to the adjacent side of a plurality of connecting plates (8). A fixing plate (9) is fixedly connected to the outer wall of a plurality of rotating shafts (5). A fixing ring (10) is fixedly connected to the adjacent side of a plurality of fixing plates (9). A slider (13) is fixedly connected to the outer wall of the fixing ring (10) located on the rear side of the valve body (1). A sliding groove (12) is opened on the outer wall of the fixing ring (10) located on the front side of the valve body (1). The slider (13) is slidably connected in the sliding groove (12). An extension pipe (22) is connected to the bottom end of the air inlet pipe (2). A rotating pipe (18) is rotatably connected to the bottom end of the extension pipe (22).

2. The integrated miniature pneumatic solenoid valve according to claim 1, characterized in that, A card plate (15) is fixedly connected to the bottom of one side of each of the multiple fixed rings (10), and a card slot plate (14) is fixedly connected to the bottom of the other side of the fixed ring (10). The card plate (15) is engaged with the inner wall of the card slot plate (14).

3. The integrated miniature pneumatic solenoid valve according to claim 1, characterized in that, Each of the multiple fixed rings (10) has a rubber ring (11) fixedly connected to its inner wall.

4. The integrated miniature pneumatic solenoid valve according to claim 1, characterized in that, An embedding groove (16) is provided at the bottom of the outer wall of the extension tube (22).

5. An integrated miniature pneumatic solenoid valve according to claim 4, characterized in that, The top end of the rotating tube (18) is fixedly connected to a rotating ring (17), which is rotatably connected to the embedded groove (16).

6. An integrated miniature pneumatic solenoid valve according to claim 5, characterized in that, A second rubber ring (19) is fixedly connected to the top of the rotating ring (17), and the second rubber ring (19) is rotatably and sealingly fitted into the embedded groove (16).

7. An integrated miniature pneumatic solenoid valve according to claim 5, characterized in that, Fixing grooves (21) are provided on the top of the outer wall of the rotating tube (18) and the outer wall of the extension tube (22).

8. An integrated miniature pneumatic solenoid valve according to claim 7, characterized in that, The inner walls of the two fixed grooves (21) are rotatably connected to protective rings (20), and the protective rings (20) are slidably fitted to the inner walls of the fixed grooves (21).

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