High-pressure thin-wall magnetic conductive tube structure

Abstract

The utility model discloses a high-pressure thin-wall magnetic conductive tube structure, and relates to the field of magnetic conductive tubes. The high-voltage thin-wall magnetic conductive tube structure comprises a static iron core, a movable iron core is arranged in the static iron core in a sliding mode, and a magnetic isolation copper sleeve is arranged on the outer wall of the middle of the static iron core; a copper screw head is arranged at the tail end of the static iron core; and an ejector rod is arranged at the front end of the movable iron core. According to the high-pressure thin-wall magnetic conductive tube structure, the movable part cavity is formed in the static iron core, the movable iron core is slidably connected to the interior of the movable part cavity, the thickness of the side wall of the movable part cavity is 1 mm, meanwhile, the magnetism isolating copper sleeve is fixedly welded to the outer wall of the movable part cavity, and the thickness of the wall, used for welding the magnetism isolating copper sleeve, of the movable part cavity is 0.2 mm. The reserved part of the iron core with the thickness of 0.2 mm is used as a welding bridge, so that welding cracking can be avoided during welding of the magnetic isolation copper sleeve, the anti-pressure capability of the magnetic isolation copper sleeve is improved, meanwhile, it is guaranteed that the cavity of the movable part has enough space, and the size of the movable iron core is made to be as large as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic conductive tubes, in particular to a high-voltage thin-wall magnetic conductive tube structure. Background Art

[0002] The magnetic tube is an indispensable part of the electromagnetic switch valve. The pressure and electromagnetic force of the magnetic tube are two key performance indicators, among which the inner diameter and welding structure of the magnetic tube are the main factors affecting the pressure and electromagnetic force.

[0003] However, the magnetic conductive tubes currently on the market are limited by the processing method. In order to avoid bursting when welding magnetic isolation components, the side wall thickness is set to be larger, which makes the inner diameter correspondingly reduced, thereby making the size of the moving iron core smaller, resulting in a decrease in electromagnetic force. Therefore, there is an urgent need for a magnetic conductive tube structure with a large inner diameter but capable of withstanding high pressure. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a high-voltage thin-wall magnetic conductive tube structure, which solves the problem that the magnetic conductive tubes currently on the market are limited by the processing method. In order to avoid bursting when welding magnetic isolation components, the side wall thickness is set to be larger, which makes its inner diameter correspondingly reduced, thereby making the size of the moving iron core smaller, resulting in a decrease in electromagnetic force.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a high-voltage thin-wall magnetic conductive tube structure, including a static iron core, a moving iron core is slidably arranged inside the static iron core, and a magnetic isolation copper sleeve is arranged on the middle outer wall of the static iron core;

[0006] A copper screw head is provided at the end of the static iron core;

[0007] A push rod is arranged at the front end of the moving iron core.

[0008] Preferably, a movable part cavity is opened inside the static iron core, the movable iron core is slidably connected inside the movable part cavity, and the side wall thickness of the movable part cavity is 1 mm.

[0009] Preferably, the magnetic-isolating copper sleeve is fixedly welded to the outer wall of the cavity of the movable part, and the wall thickness of the cavity of the movable part for welding the magnetic-isolating copper sleeve is 0.2 mm.

[0010] Preferably, a sliding cavity is provided at the front end of the cavity of the movable part, and the push rod is slidably arranged inside the sliding cavity.

[0011] Preferably, a valve core assembly cavity is provided at the front end of the sliding cavity, and the valve core assembly cavity is used for assembling a solenoid valve core.

[0012] Preferably, a contraction portion is provided at the end of the static iron core, and the copper screw head is installed inside the contraction portion.

[0013] Preferably, an O-ring is sleeved on the outer peripheral wall of the copper screw head, and the O-ring fits tightly with the inner wall of the contraction portion.

[0014] The utility model discloses a high-voltage thin-wall magnetic conductive tube structure, which has the following beneficial effects: a movable part cavity is opened inside a static iron core, a movable iron core is slidably connected inside the movable part cavity, a side wall thickness of the movable part cavity is 1 mm, and a magnetic isolation copper sleeve is fixedly welded to an outer wall of the movable part cavity, a wall thickness of the movable part cavity for welding the magnetic isolation copper sleeve is 0.2 mm, and when welding, a 0.2 mm thick portion of the iron core is retained as a welding bridge, so that cracking can be avoided during welding of the magnetic isolation copper sleeve, thereby improving its compressive resistance, and at the same time ensuring that the movable part cavity has sufficient space, so that the volume of the movable iron core is as large as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a cross-sectional view of the overall internal structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the static iron core of the utility model.

[0018] In the figure: 1. static iron core; 2. push rod; 3. moving iron core; 4. O-ring; 5. copper screw head; 6. movable part cavity; 7. magnetic isolation copper sleeve; 8. sliding cavity; 9. valve core assembly cavity; 10. contraction part. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The embodiment of the present application solves the problem that the magnetic conductive tubes currently on the market are limited by the processing methods by providing a high-voltage thin-walled magnetic conductive tube structure. In order to avoid bursting when welding magnetic isolation components, the side wall thickness is set to be larger, which reduces the inner diameter accordingly, thereby reducing the size of the moving iron core and causing a decrease in electromagnetic force.

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] The utility model embodiment discloses a high-voltage thin-wall magnetic conductive tube structure.

[0023] According to the attached Figure 1-2 As shown, it comprises a static iron core 1, a moving iron core 3 is slidably arranged inside the static iron core 1, and a magnetic isolation copper sleeve 7 is arranged on the middle outer wall of the static iron core 1;

[0024] A copper screw head 5 is provided at the end of the static iron core 1;

[0025] A push rod 2 is provided at the front end of the moving iron core 3 .

[0026] A movable part cavity 6 is provided inside the static iron core 1, and the moving iron core 3 is slidably connected inside the movable part cavity 6. The thickness of the side wall of the movable part cavity 6 is 1 mm.

[0027] The magnetic isolation copper sleeve 7 is fixedly welded to the outer wall of the movable part cavity 6. The wall thickness of the movable part cavity 6 used for welding the magnetic isolation copper sleeve 7 is 0.2 mm. When welding, the 0.2 mm thick reserved part of the iron core is used as a welding bridge. This can avoid cracking during welding of the magnetic isolation copper sleeve 7 and improve its compressive resistance. The magnetic conductive tube can withstand a high pressure of 35 MPa.

[0028] A sliding cavity 8 is provided at the front end of the movable portion cavity 6 , and the push rod 2 is slidably disposed inside the sliding cavity 8 .

[0029] A valve core assembly cavity 9 is provided at the front end of the sliding cavity 8, and the valve core assembly cavity 9 is used for assembling the valve core of the solenoid valve.

[0030] A contraction portion 10 is provided at the end of the static iron core 1, and a copper screw head 5 is installed inside the contraction portion 10. An O-ring 4 is sleeved on the outer peripheral wall of the copper screw head 5, and the O-ring 4 fits tightly with the inner wall of the contraction portion 10 to ensure the sealing inside the cavity 6 of the movable part, and at the same time, the copper screw head 5 is connected to the external valve sleeve or valve body through a thread.

[0031] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0032] The high-pressure thin-wall magnetic tube structure is characterized by opening a movable part cavity 6 inside the static iron core 1, and the moving iron core 3 is slidably connected inside the movable part cavity 6. The side wall thickness of the movable part cavity 6 is 1 mm. At the same time, the magnetic isolation copper sleeve 7 is fixedly welded to the outer wall of the movable part cavity 6. The wall thickness of the movable part cavity 6 for welding the magnetic isolation copper sleeve 7 is 0.2 mm. When welding, the 0.2 mm thick iron core reserved part is used as a welding bridge, so as to avoid cracking during welding of the magnetic isolation copper sleeve 7 and improve its compressive resistance. At the same time, it can ensure that the movable part cavity 6 has enough space to make the volume of the moving iron core 3 as large as possible. In actual use, the external electromagnetic coil is energized, and the magnetic field passes through the static iron core 1 and the moving iron core 3, so that the moving iron core 3 and the static iron core 1 generate magnetic force. At this time, the moving iron core 3 moves toward the static iron core 1, thereby pushing the push rod 2, so that the push rod 2 pushes the valve core to move.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-voltage thin-wall magnetic conductive tube structure, comprising a static iron core (1), characterized in that: A moving iron core (3) is slidably arranged inside the static iron core (1), and a magnetic isolation copper sleeve (7) is arranged on the middle outer wall of the static iron core (1); A copper screw head (5) is provided at the end of the static iron core (1); A push rod (2) is provided at the front end of the moving iron core (3).

2. A high-voltage thin-wall magnetic conductive tube structure according to claim 1, characterized in that: A movable part cavity (6) is provided inside the static iron core (1), and the movable iron core (3) is slidably connected inside the movable part cavity (6). The side wall thickness of the movable part cavity (6) is 1 mm.

3. A high-voltage thin-wall magnetic conductive tube structure according to claim 2, characterized in that: The magnetic isolation copper sleeve (7) is fixedly welded to the outer wall of the movable part cavity (6); the wall thickness of the movable part cavity (6) for welding the magnetic isolation copper sleeve (7) is 0.2 mm.

4. A high-voltage thin-wall magnetic conductive tube structure according to claim 3, characterized in that: A sliding cavity (8) is provided at the front end of the movable portion cavity (6), and the push rod (2) is slidably arranged inside the sliding cavity (8).

5. A high-voltage thin-wall magnetic conductive tube structure according to claim 4, characterized in that: A valve core assembly cavity (9) is provided at the front end of the sliding cavity (8), and the valve core assembly cavity (9) is used for assembling a solenoid valve core.

6. A high-voltage thin-wall magnetic conductive tube structure according to claim 1, characterized in that: A contraction portion (10) is provided at the end of the static iron core (1), and the copper screw head (5) is installed inside the contraction portion (10).

7. A high-voltage thin-wall magnetic conductive tube structure according to claim 6, characterized in that: An O-ring (4) is sleeved on the outer peripheral wall of the copper screw head (5), and the O-ring (4) is tightly fitted with the inner wall of the contraction portion (10).

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