Electromagnetic valve with protection mechanism

Abstract

The utility model discloses an electromagnetic valve with a protection mechanism, and relates to the field of electromagnetic valves, the electromagnetic valve comprises an elastic inner shell arranged on the surface of an electromagnetic valve body in a sleeving mode, a protection shell assembly is arranged at the top of a base, and the protection shell assembly comprises a second gear rotationally installed at the top of the base through a first rotating shaft and used for driving a first gear to rotate; the first gear is rotationally installed in the center of the top of the base through a second rotating shaft and engaged with the second gear, a disc is fixedly installed on the surface of an inner cavity of the base, a plurality of arc-shaped shells distributed in an annular array are slidably installed on the top of the disc, the multiple arc-shaped shells are rotationally connected with the first gear, and the elastic inner shell is arranged in the center of the top of the disc. According to the electromagnetic valve, the elastic inner shell and the protective shell can absorb and disperse impact energy, impact on the electromagnetic valve body is reduced, the service life of the electromagnetic valve is prolonged, meanwhile, dust and water can be prevented from entering the electromagnetic valve body, and damage to the electromagnetic valve body is avoided.

Description

Technical Field

[0001] This application relates to the field of solenoid valves, and more particularly to a solenoid valve with a protective mechanism. Background Technology

[0002] Solenoid valves are fundamental automation components used to control fluids, and their applications extend beyond hydraulics and pneumatics. They are widely used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, ensuring both precision and flexibility. Their applications include, but are not limited to, automatic control systems (such as water treatment systems and refrigeration / air conditioning systems), industrial manufacturing (such as machine tools and metallurgical equipment), household appliances (such as washing machines and dishwashers), the automotive industry (such as engine control systems and braking systems), and medical equipment (such as ventilators and infusion pumps).

[0003] The lack of protective devices in existing solenoid valves during use leads to significant limitations and impacts on their operation, thus affecting their service life. Utility Model Content

[0004] To address the issue of insufficient protection during the use of solenoid valves, which affects their service life, this application provides a solenoid valve with a protective mechanism.

[0005] The solenoid valve with a protective mechanism provided in this application adopts the following technical solution:

[0006] A solenoid valve with a protective mechanism includes an elastic inner shell fitted onto the surface of the solenoid valve body. A protective shell assembly is provided on the top of the base. The protective shell assembly includes a gear two rotatably mounted on the top of the base via a rotating shaft for driving a gear one to rotate. The gear one is rotatably mounted at the center of the top of the base via the rotating shaft two and meshes with the gear two. A disc is fixedly mounted on the inner surface of the base cavity. A plurality of arc-shaped shells arranged in a circular array are slidably mounted on the top of the disc. The plurality of main arc-shaped shells are rotatably connected to the gear one. The elastic inner shell is located at the center of the top of the disc, and the surface of the elastic inner shell abuts against the inner surfaces of the plurality of arc-shaped shells.

[0007] By adopting the above technical solution, the solenoid valve body is installed inside the elastic inner shell. The elastic inner shell has a certain sound insulation and shock absorption effect, reducing the impact of vibration on the motor itself and extending the service life of the motor. Furthermore, a protective shell composed of several arc-shaped shells is fitted on the surface of the elastic inner shell to protect the motor from external impacts and collisions. The diameter of the protective shell composed of several arc-shaped shells can be adjusted. When it is necessary to replace the elastic inner shell with one of different thicknesses, the diameter of the protective shell can be flexibly adjusted to install elastic inner shells of different thicknesses without replacing the protective shell.

[0008] Preferably, a plurality of the arc-shaped housings are fixedly mounted with sliders at their bottoms, and the top of the disc is provided with a groove that matches the shape of the sliders. The plurality of sliders are located in the corresponding grooves and slide. The bottom of each of the plurality of sliders is fixedly connected with a sliding rod. The top of the gear is provided with a plurality of arc-shaped grooves that match the shape of the sliding rods, and the plurality of sliding rods are located in the corresponding arc-shaped grooves.

[0009] By adopting the above technical solution, when the gear rotates, the sliding rod installed in the arc-shaped groove is subjected to force and slides. The sliding cooperation between the slider and the groove can restrict the arc-shaped shell from sliding linearly on the top of the disk, converting the rotational motion into linear motion and preventing the arc-shaped shell from rotating.

[0010] Preferably, a rotating groove is provided at the bottom of the base corresponding to the position of the rotating shaft, the bottom end of the rotating shaft movably passes through the side wall of the base and is fixedly connected to a turntable, and a hexagonal hole is provided at the center of the bottom of the turntable.

[0011] By adopting the above technical solution, since the turntable is embedded in the first slot, it is inconvenient to manually move it. By opening a hexagonal hole at the bottom of the turntable, a hexagonal wrench can be used to drive the turntable to rotate, making it more convenient to rotate.

[0012] Preferably, the base has a circular hole at the top center that matches the shape of the rotating shaft, and the base has a cavity communicating with the circular hole. The cavity contains a rotation limiting component, which includes a friction block located in the cavity and capable of lateral sliding.

[0013] By adopting the above technical solution, the motor will vibrate during operation. When the motor vibrates, the slider slides in the first slide groove, which in turn drives the first gear to rotate. By setting a rotation limiting component, the first gear is prevented from rotating on its own. Since the first gear cannot rotate, the slider is restricted from sliding in the first slide groove. As a result, the several arc-shaped shells cannot slide, so that the inner surface of the several arc-shaped shells abuts against the surface of the elastic inner shell, preventing the elastic inner shell from shaking and improving the overall stability of the motor. At the same time, it can also prevent friction between the elastic inner shell and the several arc-shaped shells, avoid material wear, and improve overall durability.

[0014] Preferably, the friction block abuts against the surface of the second rotating shaft on the side closest to the second rotating shaft.

[0015] By adopting the above technical solution, the friction block abuts against the surface of the second rotating shaft, avoiding misalignment, increasing the friction between them, and preventing the second rotating shaft from rotating within the second rotating groove.

[0016] Preferably, a spring is fixed to the side of the friction block away from the second rotating shaft, and the other end of the spring is fixed to the side of the cavity. A right-angled triangular groove is provided on the top of the friction block. A threaded groove is provided on the top of the cavity corresponding to the right-angled triangular groove. A rotating groove is provided on the bottom of the base corresponding to the threaded groove, and a threaded rod with its top end extending into the rotating groove and fixed to a limiting plate is threadedly connected to the threaded groove.

[0017] By adopting the above technical solution, rotating the threaded rod will push the inclined surface of the right-angled triangular groove downward. Under the action of the pushing force, the friction block slides into the cavity, and the side of the friction block no longer abuts against the surface of the second rotating shaft. Therefore, there is no friction between them, and the second rotating shaft can rotate in the rotating groove. In this way, the diameter of the protective shell composed of several arc-shaped shells can be adjusted, making the operation simple and convenient.

[0018] Preferably, the base has a limiting groove inside that matches the shape of the limiting plate, and the limiting groove is connected to the rotating groove.

[0019] By adopting the above technical solution, the limiting plate and the limiting groove can restrict the distance of the threaded rod moving down or up. When the limiting plate moves to the lowest part of the limiting groove, the side of the friction block does not contact the second surface of the rotating shaft, and there is no friction between them. When the limiting plate moves to the top of the limiting plate, the side of the friction block abuts against the second surface of the rotating shaft, and there is friction between them, thus avoiding the need to rotate the threaded rod by feel.

[0020] Preferably, a hexagonal hole is provided at the center of the top of the limiting plate.

[0021] By adopting the above technical solution, since the limiting plate is embedded in the limiting groove, and a hexagonal hole is opened at the bottom of the turntable, the turntable can be rotated by a hexagonal wrench, making it more convenient to rotate.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By installing the solenoid valve body inside the elastic inner shell, and with the cooperation of a protective shell composed of several arc-shaped shells on the surface of the elastic inner shell, when the solenoid valve body is subjected to external impact, the elastic inner shell and the protective shell can absorb and disperse the impact energy, reduce the impact on the solenoid valve body itself, extend the service life of the solenoid valve, and at the same time prevent dust and moisture from entering the solenoid valve body, thus avoiding damage to the solenoid valve body.

[0024] 2. The thickness of the elastic inner shell can be flexibly adjusted according to the installation environment. A thicker elastic inner shell can be replaced, which can provide better shock absorption. When the installation space is small, a thinner elastic inner shell can be replaced. The protective shell assembly can also be flexibly adjusted to accommodate the diameter of the protective shell composed of several arc-shaped shells, so that elastic inner shells of different thicknesses can be installed without replacing the protective shell, thus saving costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the overall structure of this application.

[0027] Figure 3 This is a schematic diagram of the protective shell assembly structure of this application;

[0028] Figure 4 This is a schematic diagram of the base and protective shell assembly structure of this application;

[0029] Figure 5 This is a schematic diagram of the structure of the rotation restriction assembly in this application;

[0030] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0031] Reference numerals: 1. Solenoid valve body; 2. Base; 3. Elastic inner shell;

[0032] 4. Protective shell assembly; 41. Arc-shaped shell; 42. Slider; 43. Slide rod; 44. Disc; 45. Slide groove one; 46. Gear one; 47. Arc-shaped slide groove; 48. Gear two; 49. Rotating shaft one; 410. Turntable; 411. Hexagonal hole one; 412. Rotating shaft two; 413. Rotating groove one; 414. Circular hole one;

[0033] 5. Restricting rotation assembly; 51. Friction block; 52. Spring; 53. Right-angled triangular groove; 54. Threaded rod; 55. Limiting plate; 56. Hexagonal hole two; 57. Limiting groove; 58. Rotating groove two; 59. Threaded groove one; 6. Cavity; 7. Dustproof and heat dissipation hole. Detailed Implementation

[0034] The following is combined with Figures 1-6 This application is described in further detail.

[0035] This application discloses an electromagnetic valve with a protective mechanism.

[0036] Reference Figure 1-Figure 4A solenoid valve with a protective mechanism includes an elastic inner shell 3 fitted onto the surface of the solenoid valve body 1. The surface of the elastic inner shell 3 has dustproof and heat dissipation holes 7. A protective shell assembly 4 is disposed at the top center of a base 2. The protective shell assembly 4 includes a gear 48 rotatably mounted on the top of the base 2. A rotating shaft 49 is fixedly connected to the bottom center of the gear 48. A circular hole 2, matching the shape of the rotating shaft 49, is opened at the top of the base 2. The rotating shaft 49 passes through the circular hole 2 and extends into a rotating groove 413, which communicates with the circular hole 2. A slot 413 is located at the bottom of the base 2, and the center of the slot 413 coincides with the center of the round hole 48. A turntable 410 is fixedly connected to the end of the shaft 49 away from the gear 48. The turntable 410 is embedded inside the slot 413. A hexagonal hole 411 is located at the center of the bottom of the turntable 410. The shaft 412 is rotatably installed at the bottom of the cavity of the round hole 414. The round hole 414 is located at the center of the top of the base 2. A gear 46 is fixedly connected to the top of the shaft 412, and the gear 46 meshes with the gear 48.

[0037] The disc 44 is fixedly installed on the top of the inner cavity of the base 2. The bottom of the disc 44 fits against the top of the gear 46. The top of the disc 44 has several grooves 45 that are adapted to the shape of the slider 42. The grooves 45 are arranged in a ring at equal intervals. The sliders 42 are slidably installed in each groove 45. The bottom of the sliders 42 near the center of the disc 44 is fixedly connected to a sliding rod 43. The top of the sliders 42 away from the sliding rod 43 is fixedly connected to an arc-shaped shell 41. The arc-shaped shell 41 is made of a material with high strength, corrosion resistance and high temperature resistance, such as stainless steel or aluminum alloy. The arc-shaped shells 41 form a circular protective shell. Several arc-shaped grooves 47 adapted to the shape of the sliding rod 43 are opened on the top of the gear 46. The arc-shaped grooves 47 are arranged in a ring at equal intervals. The sliding rod 43 is located in the arc-shaped groove 47 and slides. The elastic inner shell 3 is located at the center of the top of the disc 44 and the arc-shaped shells 41 are wrapped around the surface of the elastic inner shell 3.

[0038] The solenoid valve body 1 is fixedly installed at the bottom of the inner cavity of the elastic inner shell 3. The elastic inner shell 3 is then placed at the top center of the disc 44. Then, a hex wrench is used to drive the turntable 410 to rotate clockwise. The turntable 410 drives the gear 48 to rotate clockwise through the first shaft 49. Since the gear 48 meshes with the first gear 46, it drives the first gear 46 to rotate counterclockwise. The slide rod 43, which is slidably installed in the arc-shaped slide groove 47, will be subjected to the force from the disc 44. However, the slide rod 43 is fixedly installed at the bottom of the slider 42 and the slider 42 is located in the first slide groove 45 and achieves lateral sliding. Thus, the rotational motion of the disc 44 is converted into the linear motion of the slider 42 in the first slide groove 45. Then, the gear 46 rotates counterclockwise and drives the slider 42 to slide in the first slide groove 45 towards the center of the disc 44. Thus, the diameter of the protective shell composed of several arc-shaped shells 41 becomes smaller and covers the surface of the elastic inner shell 3.

[0039] The elastic inner shell 3, together with the protective shell composed of several arc-shaped shells 41, protects the solenoid valve body 1 and can withstand harsher environmental conditions, such as strong impacts and vibrations. It can prevent dust, moisture and other impurities from entering the interior of the solenoid valve body 1, thus significantly improving the sealing performance of the solenoid valve body 1 and extending its service life. Moreover, the elastic inner shell 3 is usually made of elastic materials such as rubber and silicone, which has good shock resistance. During equipment operation, even if vibration or impact occurs, the elastic inner shell 3 can effectively absorb and disperse these forces, protecting the solenoid valve body 1 from damage.

[0040] Furthermore, the elastic inner shell 3 of different thicknesses can be replaced. A thicker elastic inner shell 3 can provide better shock absorption and noise reduction. The diameter of the protective shell composed of several arc-shaped shells 41 can be flexibly adjusted according to the thickness of the elastic inner shell 3. On the same principle, rotating the turntable 410 clockwise will decrease the diameter of the protective shell composed of several arc-shaped shells 41, and rotating the turntable 410 counterclockwise will increase the diameter of the protective shell composed of several arc-shaped shells 41, so that the inner surface of several arc-shaped shells 41 abuts against the outer surface of the elastic inner shell 3, without the need to replace the protective shell, thus saving costs.

[0041] Reference Figure 6 , Figure 5 A cavity 6 communicating with the first round hole 414 is opened inside the base 2. A rotation limiting component 5 is set on the side of the cavity 6. The rotation limiting component 5 includes a friction block 51 located in the cavity 6 and enabling lateral sliding. A spring 52 is fixedly connected to the center of the side of the friction block 51 away from the second rotating shaft 412. The end of the spring 52 away from the friction block 51 is fixedly connected to the center of the side of the cavity 6 away from the second rotating shaft 412. The side of the friction block 51 that contacts the surface of the second rotating shaft 412 abuts against the surface of the second rotating shaft 412 to avoid play and increase the friction between the friction block 51 and the second rotating shaft 412.

[0042] The friction block 51 has a right-angled triangular groove 53 on its top, and the inclined surface of the right-angled triangular groove 53 is located on the side close to the spring 52. The bottom of the base 2 has a rotating groove 58 corresponding to the right-angled triangular groove 53. The top of the inner cavity of the rotating groove 58 has a threaded groove 59 that communicates with the right-angled triangular groove 53. The threaded rod 54 is threaded into the threaded groove 59, and the bottom end of the threaded rod 54 extends into the right-angled triangular groove 53. The top end of the threaded rod 54 is fixedly connected to a limiting plate 55. The inner surface of the rotating groove 58 has a limiting groove 57 that communicates with the threaded groove 59, and the limiting groove 57 is adapted to the shape of the limiting plate 55. The hexagonal hole 56 is opened in the center of the top of the limiting plate 55.

[0043] To prevent the slider 42 from sliding in the first groove 45 when the solenoid valve body 1 is impacted, thereby driving the gear 46 to rotate, a friction block 51 is provided. The side of the friction block 51 abuts against the surface of the second rotating shaft 412, and a frictional force exists between the friction block 51 and the second rotating shaft 412. Under the action of the frictional force, the second rotating shaft 412 cannot rotate in the first round hole 414, thus preventing the gear 46 from rotating. Since the gear 46 cannot rotate, the slider 42 is restricted from sliding in the first groove 45. As a result, the several arc-shaped shells 41 cannot slide, and the inner surface of the several arc-shaped shells 41 abuts against the surface of the elastic inner shell 3, preventing the elastic inner shell 3 from shaking and improving the overall stability of the solenoid valve body 1. At the same time, it can also prevent friction between the elastic inner shell 3 and the several arc-shaped shells 41, avoid material wear, and improve the overall durability.

[0044] When it is necessary to adjust the diameter of the protective shell composed of several arc-shaped shells 41, the threaded rod 54 is rotated clockwise and moved downward by the hexagonal wrench. When the threaded rod 54 moves downward to the bottom of the inner cavity of the limiting plate 55 and the limiting groove 57, the threaded rod 54 applies a thrust to the inclined surface of the right-angled triangular groove 53. Through the decomposition of the force, it can be seen that the friction block 51 will be subjected to a force in the direction of the cavity 6. Under the action of the force, the friction block 51 slides into the cavity 6 and compresses the spring 52. As a result, the friction block 51 no longer contacts the rotating shaft 412, and there is no friction between them. As a result, the rotating shaft 412 can rotate, and the diameter of the protective shell composed of several arc-shaped shells 41 can be adjusted.

[0045] When further restriction of rotation is required, the threaded rod 54 is moved upward by the hexagonal wrench. When the limiting plate 55 moves to the top of the inner cavity of the limiting groove 57, the threaded rod 54 will no longer exert a pushing force on the friction block 51. Under the action of the spring 52, the friction block 51 rebounds to its original position, and then the side of the friction block 51 continues to abut against the surface of the second rotating shaft 412. There is friction between them, which restricts the rotation of the second rotating shaft 412 in the first round hole 414.

[0046] The implementation principle of a solenoid valve with a protective mechanism in this application embodiment is as follows: The solenoid valve body 1 is fixedly installed at the bottom of the inner cavity of the elastic inner shell 3, and then the elastic inner shell 3 is placed at the top center of the disc 44. Then, a hex wrench is used to drive the turntable 410 to rotate clockwise, which indirectly drives the gear 46 to rotate counterclockwise. The slide rod 43, which is slidably installed in the arc-shaped slide groove 47 by the counterclockwise rotation of the gear 46, will be subjected to the force given by the disc 44. However, the slide rod 43 is fixedly installed at the bottom of the slider 42 and the slider 42 is located in the slide groove 45 and achieves lateral sliding. Thus, the rotational motion of the disc 44 is converted into the linear motion of the slider 42 in the slide groove 45. Then, the counterclockwise rotation of the gear 46 drives the slider 42 to slide in the slide groove 45 towards the center of the disc 44. As a result, the diameter of the protective shell composed of several arc-shaped shells 41 becomes smaller and covers the surface of the elastic inner shell 3.

[0047] The elastic inner shell 3 needs to be replaced with one of different thicknesses. The threaded rod 54 is rotated clockwise and moved downward by the hexagonal wrench. When the threaded rod 54 moves downward to the bottom of the inner cavity of the limiting plate 55 and the limiting groove 57, the threaded rod 54 will exert a thrust on the inclined surface of the right-angled triangular groove 53. Through force decomposition, it can be seen that the friction block 51 will be subjected to a force in the direction of the cavity 6. Under the action of the force, the friction block 51 slides into the cavity 6 and compresses the spring 52. As a result, the friction block 51 is no longer in contact with the rotating shaft 412, and there is no friction between them. As a result, the rotating shaft 412 can rotate. Then, the turntable 410 is rotated clockwise, and the diameter of the protective shell composed of several arc-shaped shells 41 becomes smaller. The turntable 410 is rotated counterclockwise, and the diameter of the protective shell composed of several arc-shaped shells 41 becomes larger, so that the inner surface of several arc-shaped shells 41 abuts against the outer surface of the elastic inner shell 3. There is no need to replace the protective shell.

[0048] When further restriction of rotation is required, the threaded rod 54 is moved upward by the hexagonal wrench. When the limiting plate 55 moves to the top of the inner cavity of the limiting groove 57, the threaded rod 54 will no longer exert a pushing force on the friction block 51. Under the action of the spring 52, the friction block 51 rebounds to its original position, and then the side of the friction block 51 continues to abut against the surface of the second rotating shaft 412. There is friction between them, which restricts the rotation of the second rotating shaft 412 in the first round hole 414.

[0049] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A solenoid valve with a protective mechanism, comprising an elastic inner shell (3) sleeved on the surface of the solenoid valve body (1), characterized in that: The base (2) is provided with a protective shell assembly (4) on the top. The protective shell assembly (4) includes a gear two (48) which is rotatably mounted on the top of the base (2) via a rotating shaft one (49) to drive the gear one (46) to rotate. The gear one (46) is rotatably mounted on the center of the top of the base (2) via a rotating shaft two (412) and meshes with the gear two (48). A disc (44) is fixedly mounted on the inner surface of the base (2). Several arc-shaped shells (41) arranged in a ring array are slidably mounted on the top of the disc (44). Several main arc-shaped shells (41) are rotatably connected to the gear one (46). An elastic inner shell (3) is located at the center of the top of the disc (44). The surface of the elastic inner shell (3) abuts against the inner surface of several arc-shaped shells (41).

2. The solenoid valve with a protective mechanism according to claim 1, characterized in that: A number of the arc-shaped housings (41) are fixedly mounted with sliders (42) at their bottoms. The top of the disc (44) is provided with a groove (45) that matches the shape of the slider (42). The sliders (42) are located in the corresponding grooves (45) and slide. The bottom of each slider (42) is fixedly connected with a sliding rod (43). The top of the gear (46) is provided with a number of arc-shaped grooves (47) that match the shape of the sliding rods (43). The sliding rods (43) are located in the corresponding arc-shaped grooves (47).

3. The solenoid valve with a protective mechanism according to claim 2, characterized in that: The base (2) has a rotating groove (413) at the bottom corresponding to the rotating shaft (49). The bottom end of the rotating shaft (49) passes through the side wall of the base (2) and is fixed to a turntable (410). A hexagonal hole (411) is provided in the center of the bottom of the turntable (410).

4. A solenoid valve with a protective mechanism according to claim 3, characterized in that: The base (2) has a circular hole (414) at the top center that matches the shape of the rotating shaft (412). The base (2) has a cavity (6) inside that communicates with the circular hole (414). The cavity (6) has a rotation limiting component (5) inside. The rotation limiting component (5) includes a friction block (51) located inside the cavity (6) and capable of lateral sliding.

5. A solenoid valve with a protective mechanism according to claim 4, characterized in that: The friction block (51) abuts against the surface of the second rotating shaft (412) on the side closest to the second rotating shaft (412).

6. A solenoid valve with a protective mechanism according to claim 5, characterized in that: The friction block (51) is fixed to a spring (52) on the side away from the rotating shaft (412), with the other end fixed to the side of the cavity (6). The friction block (51) has a right-angled triangular groove (53) at the top. The cavity (6) has a threaded groove (59) at the top corresponding to the right-angled triangular groove (53). The base (2) has a rotating groove (58) at the bottom corresponding to the threaded groove (59) that communicates with the threaded groove (59). The threaded groove (59) has a threaded rod (54) with its top end extending into the rotating groove (58) and fixed to a limiting plate (55).

7. A solenoid valve with a protective mechanism according to claim 6, characterized in that: The base (2) has a limiting groove (57) inside that matches the shape of the limiting plate (55), and the limiting groove (57) is connected to the rotating groove (58).

8. A solenoid valve with a protective mechanism according to claim 7, characterized in that: The limiting plate (55) has a hexagonal hole (56) at the center of its top.

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