Driving structure of electromagnetic valve of unclamping cylinder

Abstract

The utility model belongs to the technical field of electromagnetic valves, and particularly relates to a driving structure of an electromagnetic valve of an unclamping cylinder, which comprises a valve body and a driving component arranged in the valve body, the driving component comprises a valve core, and a piston and a spring seat are respectively mounted at two ends of the valve core; the valve element is sleeved with the valve sleeve, an outer protruding part is arranged on the circumferential face of the valve element, and two first grooves distributed symmetrically and a second groove located between the two first grooves are formed in the circumferential face of the outer protruding part. A first sealing ring; the first solid lubricating grease is positioned in the second groove; according to the electromagnetic valve, the sealing ring and the solid lubricating grease are arranged, so that the sealing performance is ensured, the valve sleeve and the valve body as well as the piston and the valve body are lubricated, the friction force is reduced, water vapor and rust powder are prevented from being generated, the action of the driving assembly is smoother, the friction noise is reduced, and the service life of the electromagnetic valve is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic valve technology, specifically relating to a solenoid valve drive structure for a knife-changing cylinder. Background Technology

[0002] A solenoid valve is an electromagnetically controlled industrial device, a basic component of automation used to control fluids. It belongs to the actuator category and is not limited to hydraulic or pneumatic systems. A solenoid valve has a sealed chamber with through holes at different positions, each hole connecting to a different air pipe. In the middle of the chamber is a piston, and on both sides are two electromagnets. When the coil of one electromagnet is energized, the valve body will be attracted to that side. By controlling the movement of the valve body, different exhaust holes are opened or closed, while the air inlet is always open. Compressed air enters different exhaust pipes, and the air pressure pushes the piston in the cylinder. The piston then drives the piston rod, which in turn drives the mechanical device. Thus, by controlling the current to the electromagnets, the mechanical movement is controlled.

[0003] In the design and application of solenoid valves, they are usually manufactured and installed according to the product design drawings and dimensions, and combined with seals and spare parts. During environmental use, the manufactured solenoid valves often generate moisture and rust powder due to inadequate human maintenance, which affects their service life. At the same time, it also causes the solenoid valve to be uncontrollable, reducing product quality and service life.

[0004] A search revealed that Chinese utility model patent CN212838672U, authorized by the patent, discloses "a special solenoid valve for a knife-making cylinder," which includes a solenoid valve body. The solenoid valve body includes a valve seat and a coil body. The coil body is installed at the right end of the valve seat. A valve core assembly is installed inside the valve seat. An air outlet is provided on the upper surface of the valve seat. An oblong hole is opened on the surface of the air outlet. An air hole is provided on the rear side of the valve seat. Two exhaust ports are provided on the front side of the valve seat. An air inlet is provided between the two exhaust ports. The air inlet, exhaust ports, oblong hole, and air outlet all lead to the inner cavity of the valve seat. Threaded connection holes are symmetrically opened on both sides of the oblong hole.

[0005] While existing technologies, including those mentioned above, such as solenoid valves for knife-cutting cylinders, have the advantage of high ventilation efficiency, in actual use, multiple sealing rings need to be fitted on the sliding valve core. When the valve core is in operation, it will rub against the valve body diameter. Over time, this can easily lead to the generation of moisture and rust powder due to wear, affecting its service life.

[0006] To address the aforementioned issues, this application proposes a solenoid valve drive structure for a knife-cutting cylinder. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides a solenoid valve drive structure for a knife-cutting cylinder, which is convenient to use and has a long service life.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a solenoid valve drive structure for a cutting cylinder, comprising a valve body and a drive assembly disposed within the valve body, the drive assembly comprising:

[0009] A valve core, with a piston and a spring seat installed at each end of the valve core;

[0010] A valve sleeve is fitted onto the valve core and has an outward protrusion on the circumferential surface of the valve core. The circumferential surface of the outward protrusion has two symmetrically distributed first grooves and a second groove located between the two first grooves.

[0011] A first sealing ring, which is fixed in the first groove and partially extends out of the first groove;

[0012] Solid grease No. 1 is located in groove No. 2.

[0013] As a preferred embodiment of this utility model, the outer wall of the valve core is tightly fitted to the inner wall of the valve sleeve.

[0014] As a preferred embodiment of this utility model, a plurality of valve sleeves are connected end to end and sleeved on the valve core.

[0015] As a preferred technical solution of this utility model, it also includes:

[0016] The second sealing ring has a sealing groove on the inner wall of the valve sleeve port, and the second sealing ring is located in the sealing groove.

[0017] As a preferred technical solution of this utility model, it also includes:

[0018] The No. 3 sealing ring has two symmetrically distributed No. 3 grooves on the circumferential surface of the piston. The No. 3 sealing ring is fixed in the No. 3 grooves, and the No. 3 sealing ring partially extends out of the No. 3 grooves.

[0019] The second solid grease has a fourth groove located between the two third grooves on the circumferential surface of the piston, and the second solid grease is located in the fourth groove.

[0020] In a preferred embodiment of this invention, the piston is fixed to the end of the valve core by a threaded engagement.

[0021] As a preferred embodiment of this utility model, the spring seat is fixed to the end of the valve core by a threaded engagement, and a spring limiting groove is provided on the end face of the spring seat.

[0022] As a preferred embodiment of this utility model, the end face of the protruding part is an inclined surface, which is used to make the cross-section of the protruding part have a trapezoidal structure.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] In this invention, the sealing ring and solid grease ensure sealing performance while lubricating the valve sleeve and valve body, as well as the piston and valve body, reducing friction, preventing the generation of water vapor and rust powder, making the drive components move more smoothly, reducing friction noise, and extending the service life of the solenoid valve.

[0025] Other additional advantages and benefits of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the isometric structure of the drive component in this utility model;

[0029] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the diagram;

[0030] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B in the diagram;

[0031] Figure 5 This utility model Figure 2 A magnified structural diagram at point C in the diagram.

[0032] In the diagram: 1. Valve body; 2. Drive assembly; 21. Valve core; 22. Valve sleeve; 221. Outer protrusion; 2211. Inclined surface; 2212. Groove No. 1; 2213. Groove No. 2; 222. Sealing groove; 23. Piston; 231. Groove No. 3; 232. Groove No. 4; 24. Spring seat; 241. Spring limiting groove; 25. Sealing ring No. 1; 26. Solid grease No. 1; 27. Sealing ring No. 2; 28. Sealing ring No. 3; 29. ​​Solid grease No. 2. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1-5 The present invention provides the following technical solution: a solenoid valve drive structure for a knife-cutting cylinder, including a valve body 1 and a drive assembly 2 disposed in the valve body 1. The drive assembly 2 includes: a valve core 21, a valve sleeve 22, a first sealing ring 25, and a first solid grease 26.

[0035] Furthermore, by Figures 1-3 As shown, in this embodiment, a piston 23 and a spring seat 24 are respectively installed at both ends of the valve core 21. The valve sleeve 22 is fitted onto the valve core 21, and has an outward protrusion 221 on the circumferential surface of the valve core 21. Two symmetrically distributed first grooves 2212 and a second groove 2213 located between the two first grooves 2212 are located on the circumferential surface of the outward protrusion 221. A first sealing ring 25 is fixed in the first groove 2212, and part of the first sealing ring 25 extends out of the first groove 2212. A first solid lubricant 26 is located in the second groove 2213. With the above scheme, during use, the piston 23 is controlled by air pressure. The action causes the valve core 21 and valve sleeve 22 to move, and drives the external mechanical device. Through the set No. 1 sealing ring 25 and No. 1 solid grease 26, the valve sleeve 22 and valve body 1 are lubricated while ensuring sealing performance, reducing friction, avoiding the generation of water vapor and rust powder, making the operation of the drive component 2 smoother, reducing friction noise, and extending the service life of the solenoid valve. In addition, the No. 1 solid grease 26 is located between the two No. 1 sealing rings 25. The No. 1 sealing rings 25 can always confine the No. 1 solid grease 26 to the inside, preventing the No. 1 solid grease 26 from overflowing and ensuring better sealing and lubrication effect.

[0036] Preferably, by Figure 1 and Figure 2As shown, in this embodiment, the outer wall of the valve core 21 is tightly fitted to the inner wall of the valve sleeve 22 to ensure the stability of the connection between the valve sleeve 22 and the valve core 21 and to avoid relative vibration.

[0037] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, multiple valve sleeves 22 are connected end to end and fitted onto the valve core 21. Therefore, the valve sleeves 22 adopt a segmented design, and the No. 1 sealing ring 25 and the No. 1 solid grease 26 can be installed independently, making installation more convenient.

[0038] Preferably, by Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, it also includes a second sealing ring 27. The valve sleeve 22 has a sealing groove 222 on the inner wall of the port. The second sealing ring 27 is located in the sealing groove 222. Therefore, after multiple valve sleeves 22 are connected, the adjacent valve sleeves 22 squeeze the second sealing ring 27 on the inner side to ensure the sealing performance after multiple valve sleeves 22 are connected.

[0039] Preferably, by Figure 1 , Figure 2 and Figure 5 As shown, this embodiment also includes: a third sealing ring 28 and a second solid grease 29. Two symmetrically distributed third grooves 231 are located on the circumferential surface of the piston 23. The third sealing ring 28 is fixed within the third groove 231, with a portion of the third sealing ring 28 extending out of the third groove 231. A fourth groove 232 is located between the two third grooves 231 on the circumferential surface of the piston 23. The second solid grease 29 is located within the fourth groove 232. With the above solution, during use, the third sealing ring 28... The sealing ring 28 and the second solid grease 29, while ensuring sealing performance, lubricate the piston 23 and valve body 1, reduce friction, prevent the generation of water vapor and rust powder, make the operation of the drive component 2 smoother, reduce friction noise, and extend the service life of the solenoid valve. In addition, the second solid grease 29 is located between the two third sealing rings 28. The third sealing rings 28 can always confine the second solid grease 29 to the inside, prevent the second solid grease 29 from overflowing, and ensure better sealing and lubrication effect.

[0040] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, the piston 23 is fixed to the end of the valve core 21 by a threaded engagement, which is convenient and stable to install, and also easy to disassemble and maintain.

[0041] Preferably, by Figure 1 and Figure 2As shown, in this embodiment, the spring seat 24 is fixed to the end of the valve core 21 by threaded engagement, and the end face of the spring seat 24 has a spring limiting groove 241, which is convenient and stable to install, and also easy to disassemble and maintain. After the piston 23 and the spring seat 24 are fixed to both ends of the valve core 21, the piston 23 and the spring seat 24 will clamp the valve sleeve 22 inward, further ensuring the stability of the valve sleeve 22 installation.

[0042] Preferably, by Figures 1-3 As shown in this embodiment, the end face of the protruding part 221 is a slope 2211, which is used to make the cross-section of the protruding part 221 have a trapezoidal structure. After adopting the above scheme, the slope 2211 has a material guiding effect, which can guide the fluid, and the structure of the protruding part 221 with a trapezoidal cross-section has higher strength.

[0043] Components not described in detail in this article are existing technologies.

[0044] The working principle and usage process of this utility model: When in use, the solenoid valve of this utility model controls the piston 23 to move by air pressure, so that the valve core 21 and valve sleeve 22 move and drive the external mechanical device.

[0045] By setting the No. 1 sealing ring 25 and the No. 1 solid grease 26, the valve sleeve 22 and the valve body 1 are lubricated while ensuring the sealing performance. By setting the No. 3 sealing ring 28 and the No. 2 solid grease 29, the piston 23 and the valve body 1 are lubricated while ensuring the sealing performance, reducing friction, avoiding the generation of water vapor and rust powder, making the operation of the drive component 2 smoother, reducing friction noise, and extending the service life of the solenoid valve.

[0046] In addition, solid grease 26 is located between two sealing rings 25. Sealing rings 25 can always confine solid grease 26 to the inside, preventing solid grease 26 from overflowing. Similarly, sealing ring 28 can always confine solid grease 29 to the inside, preventing solid grease 29 from overflowing, thus ensuring better sealing and lubrication.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A solenoid valve drive structure for a cutting cylinder, comprising a valve body (1) and a drive assembly (2) disposed within the valve body (1), characterized in that, The driving component (2) includes: A valve core (21) has a piston (23) and a spring seat (24) installed at both ends of the valve core (21); A valve sleeve (22) is fitted onto the valve core (21) and has an outward protrusion (221) on the circumferential surface of the valve core (21). The outward protrusion (221) has two symmetrically distributed first grooves (2212) and a second groove (2213) located between the two first grooves (2212). A first sealing ring (25) is fixed in the first groove (2212), and the first sealing ring (25) extends out of the first groove (2212); Solid grease No. 1 (26) is located in the groove No. 2 (2213).

2. The solenoid valve drive structure for the cutting cylinder according to claim 1, characterized in that: The outer wall of the valve core (21) is tightly fitted to the inner wall of the valve sleeve (22).

3. The solenoid valve drive structure for the cutting cylinder according to claim 1, characterized in that: Multiple valve sleeves (22) are connected end to end and sleeved on the valve core (21).

4. The solenoid valve drive structure for the cutting cylinder according to claim 3, characterized in that: Also includes: The second sealing ring (27) has a sealing groove (222) on the inner wall of the port of the valve sleeve (22), and the second sealing ring (27) is located in the sealing groove (222).

5. The solenoid valve drive structure for the cutting cylinder according to claim 1, characterized in that: Also includes: The No. 3 sealing ring (28) has two symmetrically distributed No. 3 grooves (231) on the circumferential surface of the piston (23). The No. 3 sealing ring (28) is fixed in the No. 3 grooves (231), and the No. 3 sealing ring (28) extends out of the No. 3 grooves (231). The second solid grease (29) has a fourth groove (232) located between the two third grooves (231) on the circumferential surface of the piston (23), and the second solid grease (29) is located in the fourth groove (232).

6. The solenoid valve drive structure for the cutting cylinder according to claim 1, characterized in that: The piston (23) is fixed to the end of the valve core (21) by means of threaded engagement.

7. The solenoid valve drive structure for the cutting cylinder according to claim 1, characterized in that: The spring seat (24) is fixed to the end of the valve core (21) by a threaded engagement, and the end face of the spring seat (24) has a spring limiting groove (241).

8. The solenoid valve drive structure for the cutting cylinder according to claim 1, characterized in that: The end face of the protruding part (221) is a slope (2211) to make the cross-section of the protruding part (221) have a trapezoidal structure.

Images