High-precision magnetic isolation sleeve of electromagnetic valve

Abstract

The utility model provides a high-precision electromagnetic valve magnetism isolating sleeve, and relates to the technical field of electromagnetic valves, the high-precision electromagnetic valve magnetism isolating sleeve comprises a pipe body installed on an electromagnetic valve, a distance ring is installed in the pipe body, the pipe body is divided into a movable cavity and a static cavity by the distance ring, the movable cavity is used for installing a movable iron core, and the static cavity is used for installing a static iron core; wherein a fixing ring is installed outside the pipe body, the end, close to the static cavity, of the fixing ring is sleeved with a packaging cylinder, and the pipe body is sleeved with the packaging cylinder; according to the technical key points, a packaging ring in threaded connection with a packaging barrel is operated, so that the packaging ring can gradually extrude and push a positioning column into a positioning groove, the packaging barrel can be installed outside a fixing ring, meanwhile, the packaging ring can be rotated to be separated from the positioning column, and the positioning column can be separated from the fixing ring by means of resilience force of a spring; the packaging cylinder is not limited and is convenient to disassemble, so that the convenience of disassembling and assembling the packaging cylinder by a worker can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to a high-precision magnetic isolation sleeve for solenoid valves. Background Art

[0002] A solenoid valve is an industrial device controlled by electromagnetics, primarily used as a basic component for fluid automation and classified as an actuator. It can be used with various circuits to achieve desired control, ensuring both precision and flexibility. The magnetic isolation sleeve is a key component in solenoid valves, typically made of non-magnetic materials. This ensures that magnetic flux flows smoothly through the core during operation without leaking into the surrounding environment.

[0003] As shown in a solenoid valve sleeve in the patent document with publication number CN210106718U, the prior art provides a flange at one end of the main body, and the shell is detachably mounted on the flange. The shell and the flange form a cavity for mounting the coil. The coil is mounted in the cavity to isolate the magnetic field interference from the coil mounted in the working section. When the coil in the cavity is working, it will not affect the external coil, thereby improving the magnetic isolation effect.

[0004] However, the existing technology realizes the connection between the shell and the main body by locking the wedge and the groove. The locking contact method is less stable, and the impact of collision will cause the shell to rotate, resulting in the separation of the wedge and the groove, thereby affecting the connection stability between the shell and the main body. Utility Model Content

[0005] In order to overcome the existing deficiencies, the embodiment of the present application provides a high-precision solenoid valve magnetic isolation sleeve. By operating the packaging ring that is threadedly connected to the packaging tube, the packaging ring can gradually squeeze and push the positioning column into the positioning groove, so that the packaging tube can be installed to the outside of the fixed ring. At the same time, the packaging ring can also be rotated to separate the positioning column, so that the positioning column can be separated from the fixed ring with the help of the rebound force of the spring, so that the packaging tube is not restricted and is easy to disassemble, thereby improving the convenience of the staff in disassembling and assembling the packaging tube.

[0006] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0007] A high-precision solenoid valve magnetic isolation sleeve comprises a tube body mounted on the solenoid valve; a spacer ring is mounted inside the tube body, and the spacer ring divides the tube body into a dynamic cavity and a static cavity, the dynamic cavity is used to install a moving iron core, and the static cavity is used to install a static iron core;

[0008] A fixing ring is installed on the outside of the tube body, and an external packaging tube is sleeved on the end of the fixing ring close to the static cavity, and the packaging tube is sleeved on the outside of the tube body. An installation cavity for installing the coil is provided between the packaging tube and the fixing ring, and the external end of the packaging tube away from the fixing ring is threadedly connected to the packaging ring;

[0009] The end of the packaging ring close to the dynamic cavity is internally provided with a plurality of groups of clips and parts for connecting with the fixing ring;

[0010] Each set of cards and components includes a vertical hole and a positioning cavity that are opened and connected inside the packaging tube. The positioning cavity and the vertical hole are arranged in a cross shape. A positioning column is provided inside the vertical hole. A positioning ring located inside the positioning cavity is sleeved on the outside of the positioning column. A plurality of springs are installed on the side of the positioning ring close to the fixing ring. The end of the spring away from the positioning ring is fixed to the inner wall of the positioning cavity.

[0011] A positioning groove is formed on one side of the fixing ring corresponding to the positioning post, and one end of the positioning post close to the fixing ring extends into the interior of the positioning groove.

[0012] In a possible implementation, the cross section of the inner side wall of the end of the packaging ring close to the fixing ring is configured to be inclined, and the cross section of the end of the positioning post away from the fixing ring is arc-shaped.

[0013] In a possible implementation, the diameter of the vertical hole is smaller than the diameter of the positioning cavity, and the outer diameter of the positioning ring is larger than the diameter of the vertical hole.

[0014] In a possible implementation, an assembly ring is installed on a side of the fixing ring close to the dynamic cavity. The assembly ring is sleeved on the outside of the tube body. A plurality of spaced-apart slots are formed on a side of the assembly ring close to the packaging tube.

[0015] In a possible implementation, a plurality of spaced-apart clamping plates are installed on a side of the packaging tube close to the assembly ring, and an end of the clamping plate away from the packaging tube extends into the inside of the clamping slot.

[0016] In a possible implementation, a plurality of anti-slip strips are installed on the outside of the packaging ring, and the plurality of anti-slip strips are evenly spaced apart.

[0017] In one possible implementation, a connecting groove is provided on the outside of one end of the tube body close to the dynamic cavity, a filter ring is provided inside the connecting groove, and connecting rings are installed at both ends of the filter ring. The filter ring and the two connecting rings are all sleeved on the outside of the tube body, and the inner wall of the connecting ring is threadedly connected to the outside of the tube body.

[0018] In a possible implementation, a plurality of spaced-apart air holes are provided inside one end of the tube body close to the dynamic cavity, and the filter ring is sleeved outside the plurality of air holes.

[0019] In summary, the present invention has at least one of the following beneficial technical effects:

[0020] 1. By operating the packaging ring that is threadedly connected to the packaging tube, the packaging ring can gradually squeeze and push the positioning post into the positioning groove, thereby allowing the packaging tube to be installed outside the fixing ring. At the same time, the packaging ring can also be rotated to separate from the positioning post, so that the positioning post can be separated from the fixing ring with the help of the spring's rebound force, so that the packaging tube is not restricted and is easy to disassemble, thereby improving the convenience of workers in disassembling and assembling the packaging tube;

[0021] 2. The filter ring can block impurities in the air to prevent them from entering the pipe body and causing pollution. At the same time, the connecting ring can be connected to the pipe body through threads, so that the staff can easily disassemble and assemble the connecting ring to maintain the filter ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a cross-sectional view of the tube body of the utility model;

[0024] Figure 3 For the utility model Figure 2 Enlarged view of part A;

[0025] Figure 4 This is an exploded view of the fixing ring of the utility model;

[0026] Figure 5 This is a cross-sectional view of the packaging tube of the present utility model.

[0027] Figure numerals: 1. tube body; 2. spacer ring; 3. dynamic cavity; 4. static cavity; 5. fixing ring; 6. packaging tube; 7. installation cavity; 8. packaging ring; 9. vertical hole; 10. positioning cavity; 11. positioning column; 12. positioning ring; 13. spring; 14. positioning groove; 15. assembly ring; 16. card slot; 17. card plate; 18. anti-slip strip; 19. connecting groove; 20. filter ring; 21. connecting ring; 22. air hole. DETAILED DESCRIPTION

[0028] The technical solution in the embodiments of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0029] This embodiment introduces a specific structure of a high-precision solenoid valve magnetic isolation sleeve. Figure 1-5As shown, it includes a tube body 1 installed on the solenoid valve, a spacer ring 2 is installed inside the tube body 1, and the spacer ring 2 divides the tube body 1 into a dynamic cavity 3 (for installing the dynamic iron core) and a static cavity 4 (for installing the static iron core), a fixing ring 5 is installed on the outside of the tube body 1, and an external packaging tube 6 is sleeved on the end of the fixing ring 5 close to the static cavity 4, and the packaging tube 6 is sleeved on the outside of the tube body 1, and an installation cavity 7 for installing the coil is provided between the packaging tube 6 and the fixing ring 5, and an external packaging ring 8 is threadedly connected to the end of the packaging tube 6 away from the fixing ring 5, and a plurality of anti-slip strips 18 are installed on the outside of the packaging ring 8;

[0030] The multiple anti-slip strips 18 are evenly spaced and distributed to enhance friction and ensure operational stability. During use, the operator installs and secures the moving and static cores using the moving and static cavities 3 and 4, and separates and installs the moving and static cores using the spacer ring 2.

[0031] At the same time, a plurality of sets of clips and parts for connecting to the fixing ring 5 are provided inside the end of the packaging ring 8 close to the dynamic cavity 3; each set of clips and parts includes a vertical hole 9 and a positioning cavity 10 opened and connected inside the packaging tube 6, the positioning cavity 10 and the vertical hole 9 are distributed in a cross shape, and a positioning column 11 is provided inside the vertical hole 9. At the same time, the staff initially sets the packaging tube 6 on the outside of the fixing ring 5 by engaging the clamping plate 17 and the clamping groove 16, and then operates the packaging ring 8 threadedly connected to the packaging tube 6, so that the inclined surface of the end of the packaging ring 8 close to the fixing ring 5 can squeeze and push the positioning column 11 inward;

[0032] Secondly, a positioning ring 12 is sleeved on the outside of the positioning post 11 and is located inside the positioning cavity 10. A plurality of spaced springs 13 are installed on the side of the positioning ring 12 close to the fixing ring 5. The end of the spring 13 away from the positioning ring 12 is fixed to the inner wall of the positioning cavity 10. A positioning groove 14 is provided on the side of the fixing ring 5 corresponding to the positioning post 11. The end of the positioning post 11 close to the fixing ring 5 extends into the positioning groove 14. When the positioning post 11 is moved inward and embedded in the positioning groove 14, the packaging tube 6 and the fixing ring 5 can be connected as a whole, thereby enhancing the tightness of the connection between the packaging tube 6 and the fixing ring 5, thereby ensuring the installation stability of the packaging tube 6.

[0033] When it is necessary to remove the packaging tube 6 to maintain the coil in the installation cavity 7, the staff rotates the packaging ring 8 to separate the positioning post 11. At this time, the positioning post 11 can be separated from the fixing ring 5 by the rebound force of the spring 13, so that the packaging tube 6 is not restricted and is easy to disassemble. This can improve the convenience of the staff in disassembling and assembling the packaging tube 6. In addition, the separate installation of the dynamic cavity 3, the installation cavity 7 and the static cavity 4 can reduce electromagnetic influence and ensure the magnetic isolation effect.

[0034] Furthermore, in order to prevent impurities from entering the tube body 1 and causing pollution, Figure 1 and 2As shown, a connecting groove 19 is provided on the outside of one end of the tube body 1 close to the dynamic cavity 3, and a filter ring 20 is provided inside the connecting groove 19, and connecting rings 21 are installed on both ends of the filter ring 20, and the filter ring 20 and the two connecting rings 21 are sleeved on the outside of the tube body 1, and the inner wall of the connecting ring 21 is threadedly connected to the outside of the tube body 1, and a plurality of spaced air holes 22 are provided inside the end of the tube body 1 close to the dynamic cavity 3, and the filter ring 20 is sleeved on the outside of the plurality of air holes 22. The air holes 22 are connected with the outside world, so that air can circulate inside the tube body 1, avoiding the formation of a closed space inside the tube body 1. At the same time, impurities are blocked and filtered by the filter ring 20, which can effectively prevent impurities from entering the interior of the tube body 1 and causing pollution. Because the connecting ring 21 is threadedly connected to the tube body 1, the staff can rotate and disassemble the connecting ring 21 to disassemble the filter ring 20, thereby improving the convenience of maintenance of the filter ring 20.

[0035] Furthermore, in order to facilitate the extrusion and pushing of the positioning column 11, as shown in FIG. Figure 3 and 5 As shown, the inner side wall cross-section of the end of the packaging ring 8 close to the fixing ring 5 is set to be inclined, and the cross-section of the end of the positioning post 11 away from the fixing ring 5 is arc-shaped. Because the inner side wall of the packaging ring 8 is inclined, the packaging ring 8 can gradually contact the positioning post 11 and gradually squeeze and push the positioning post 11 into the interior of the positioning groove 14, thereby connecting the fixing ring 5 and the packaging tube 6 as one. Because the diameter of the vertical hole 9 is smaller than the diameter of the positioning cavity 10, and the outer diameter of the positioning ring 12 is larger than the diameter of the vertical hole 9, the positioning post 11 can be stably displaced by the limitation of the positioning ring 12, thereby preventing the positioning post 11 from separating from the vertical hole 9 during the displacement process;

[0036] At the same time, in order to prevent the packaging tube 6 from rotating, it is necessary to limit the packaging tube 6, such as Figure 2-5 As shown, an assembly ring 15 is installed on the side of the fixing ring 5 close to the dynamic cavity 3, and the assembly ring 15 is sleeved on the outside of the tube body 1. A plurality of spaced-apart card grooves 16 are provided on the side of the assembly ring 15 close to the packaging tube 6. A plurality of spaced-apart card plates 17 are installed on the side of the packaging tube 6 close to the assembly ring 15. The card plate 17 extends to the inside of the card groove 16 at one end away from the packaging tube 6. By engaging the plurality of card plates 17 and the plurality of card grooves 16, the packaging tube 6 can be limited in multiple directions, thereby preventing the packaging tube 6 from rotating, thereby facilitating the subsequent operation of threaded connection between the packaging ring 8 and the packaging tube 6.

[0037] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A high-precision solenoid valve magnetic isolation sleeve, characterized in that: The invention comprises a tube body (1) installed on a solenoid valve: a spacer ring (2) is installed inside the tube body (1), and the spacer ring (2) divides the tube body (1) into a dynamic cavity (3) and a static cavity (4); the dynamic cavity (3) is used to install a dynamic iron core, and the static cavity (4) is used to install a static iron core; The tube body (1) is provided with a fixing ring (5) on the outside, an external sleeve of an end of the fixing ring (5) close to the static cavity (4) is provided with a packaging tube (6), and the packaging tube (6) is sleeved on the outside of the tube body (1), an installation cavity (7) for installing a coil is provided between the packaging tube (6) and the fixing ring (5), and an external threaded connection of an packaging ring (8) is provided on the end of the packaging tube (6) away from the fixing ring (5); The packaging ring (8) is provided with a plurality of groups of clips and parts for connecting with the fixing ring (5) at one end close to the dynamic cavity (3); Each set of cards and components includes a vertical hole (9) and a positioning cavity (10) which are opened inside the packaging tube (6) and are connected to each other. The positioning cavity (10) and the vertical hole (9) are distributed in a cross shape. A positioning column (11) is provided inside the vertical hole (9). A positioning ring (12) located inside the positioning cavity (10) is sleeved on the outside of the positioning column (11). A plurality of springs (13) are installed at intervals on the side of the positioning ring (12) close to the fixing ring (5). The end of the spring (13) away from the positioning ring (12) is fixed to the inner wall of the positioning cavity (10). A positioning groove (14) is provided on one side of the fixing ring (5) corresponding to the positioning column (11), and one end of the positioning column (11) close to the fixing ring (5) extends into the interior of the positioning groove (14).

2. The high-precision magnetic isolation sleeve for a solenoid valve according to claim 1, characterized in that: The inner side wall cross section of one end of the packaging ring (8) close to the fixing ring (5) is set to be inclined, and the cross section of one end of the positioning column (11) away from the fixing ring (5) is arc-shaped.

3. The high-precision magnetic isolation sleeve for a solenoid valve according to claim 1, characterized in that: The diameter of the vertical hole (9) is smaller than the diameter of the positioning cavity (10), and the outer diameter of the positioning ring (12) is larger than the diameter of the vertical hole (9).

4. The high-precision magnetic isolation sleeve for a solenoid valve according to claim 1, characterized in that: An assembly ring (15) is installed on the side of the fixed ring (5) close to the dynamic cavity (3), and the assembly ring (15) is sleeved on the outside of the tube body (1). A plurality of slots (16) distributed at intervals are opened on the side of the assembly ring (15) close to the packaging tube (6).

5. The high-precision magnetic isolation sleeve for a solenoid valve according to claim 4, characterized in that: A plurality of spaced-apart clamping plates (17) are installed on one side of the packaging cylinder (6) close to the assembly ring (15), and the clamping plates (17) extend from one end of the packaging cylinder (6) to the inside of the clamping groove (16).

6. The high-precision magnetic isolation sleeve for a solenoid valve according to claim 1, characterized in that: A plurality of anti-slip strips (18) are installed on the outside of the packaging ring (8), and the plurality of anti-slip strips (18) are evenly spaced and distributed.

7. The high-precision magnetic isolation sleeve for a solenoid valve according to claim 1, characterized in that: A connecting groove (19) is provided on the outside of one end of the tube body (1) close to the dynamic cavity (3), a filter ring (20) is provided inside the connecting groove (19), and connecting rings (21) are installed at both ends of the filter ring (20), the filter ring (20) and the two connecting rings (21) are sleeved on the outside of the tube body (1), and the inner wall of the connecting ring (21) is threadedly connected to the outside of the tube body (1).

8. The high-precision magnetic isolation sleeve for a solenoid valve according to claim 7, characterized in that: A plurality of spaced-apart air holes (22) are provided inside one end of the tube body (1) close to the dynamic cavity (3), and the filter ring (20) is sleeved outside the plurality of air holes (22).

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