Explosion-proof magnetic position switch

Abstract

The utility model discloses an explosion-proof magnetic position switch, and belongs to the field of sensors. The device mainly comprises a switch assembly, the switch assembly comprises a shell, fixing strips are fixedly installed at the two ends of the outer side of the shell, a fixing assembly is arranged at the bottom of the switch assembly, the fixing assembly comprises a sliding block, the sliding block is inserted into the outer side of a wire cap, and an air cylinder is arranged on the outer side of the sliding block. According to the explosion-proof magnetic position switch, the sliding block is installed at the bottom of the shell, so that the position switch can be inserted into the sliding groove of the air cylinder through the sliding block, a switch assembly can be rapidly installed, and the explosion-proof magnetic position switch is convenient to use and high in practicability. And a plurality of groups of strip holes with different models are formed in the sliding block, so that the switch assembly can be mounted on four groups of supporting strips on the outer side of the air cylinder through the strip holes, and meanwhile, the mounting mode of the switch assembly is wide through the sliding block.

Description

Technical Field

[0001] The present application relates to the field of sensor technology, in particular to an explosion-proof magnetic position switch. Background Art

[0002] The explosion-proof magnetic position switch is a specially designed switch device for safe use in hazardous locations with explosive gas or steam environments. Compared with ordinary position switches, it has an explosion-proof design and can operate under conditions that may cause sparks or arcs without causing explosions or fires.

[0003] This type of position switch usually uses the magnetic operating principle to detect the position or proximity of an object by induction of a magnetic field. They are widely used in the oil and gas industry, chemical plants, mines and other industrial environments where explosion hazards may exist. The design and manufacture of explosion-proof magnetic position switches must comply with strict explosion-proof standards and safety requirements to ensure the reliability of the equipment and the safety of operators;

[0004] However, among the position switches currently used, since the position switches need to be installed on external equipment, including the cylinder, the position switches usually need to use external parts so that the position switches can be combined with the cylinder, which is inconvenient.

[0005] Therefore, it is necessary to provide an explosion-proof magnetic position switch to solve the above problems.

[0006] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Utility Model Content

[0007] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide an explosion-proof magnetic position switch, so as to achieve the effect that the explosion-proof position switch can be quickly installed without the aid of external parts.

[0008] The technical solution adopted by the present application to solve its technical problems is: an explosion-proof magnetic position switch, including a switch assembly, the switch assembly including a shell, fixing bars are fixedly installed at both ends of the outer side of the shell, a fixing assembly is arranged at the bottom of the switch assembly, the fixing assembly includes a slider, the slider is inserted into the outer side of the wire cap, a cylinder is arranged on the outer side of the slider, a slide groove is opened on the cylinder, and the slider is slidably connected to the slide groove.

[0009] Furthermore, a turntable is fixedly installed on the outer side of the fixing bar, a rotating plate is rotatably connected to the turntable, a bolt is arranged on the rotating plate, a threaded hole is opened on the side of the slider close to the bolt, and the threaded hole and the bolt are adapted to each other.

[0010] Furthermore, a support plate is fixedly mounted on the outer side of the fixing bar, and the support plate and the rotating plate are in a horizontal position.

[0011] Furthermore, a baffle is fixedly mounted on one side of the fixing bar away from the supporting plate, and the width of the baffle is greater than the width of the fixing bar.

[0012] Furthermore, a plurality of groups of strip holes are provided at both ends of the interior of the sliding block, and the inner diameters of the plurality of groups of strip holes are inconsistent.

[0013] Furthermore, a sensing component is fixedly installed inside the shell, and a wire cap is fixedly installed at one end of the shell.

[0014] The beneficial effects of the present application are as follows: the explosion-proof magnetic position switch provided by the present application has a slider installed at the bottom of the shell, so that the position switch can be inserted into the slide groove of the cylinder through the slider, so that the switch assembly can be quickly installed, and a plurality of groups of bar holes of different models are opened inside the slider, so that the switch assembly can be installed on the four groups of support bars on the outside of the cylinder through the bar holes, and the slider makes the switch assembly widely installed.

[0015] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0017] In the attached picture:

[0018] Figure 1 This is an overall schematic diagram of the explosion-proof magnetic position switch in this application;

[0019] Figure 2 This is a schematic diagram of the fixed components in 1;

[0020] Figure 3 This is a schematic diagram of the explosion of the switch component in 1;

[0021] Figure 4 1 is a schematic diagram of an embodiment of the fixing component;

[0022] Among them, the reference numerals in the figure are:

[0023] 1. Switch assembly; 11. Housing; 12. Wire cap; 13. Fixing strip; 14. Support plate; 15. Induction component;

[0024] 2. Fixing assembly; 21. Sliding block; 22. Bar hole; 23. Threaded hole; 24. Turntable; 25. Rotating piece; 26. Bolt; 27. Baffle. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0027] like Figure 1 As shown, the present application provides an explosion-proof magnetic position switch, including a switch assembly 1, and a fixing assembly 2 fixedly mounted at the bottom of the switch assembly 1, wherein the switch assembly 1 is used to be mounted on an external cylinder, and the cylinder needs to have two sets of switch assemblies 1 at the same time, and are respectively located at the front end and the rear end of the cylinder. The switch assembly 1 is similar to the principle of a sensor, and the switch assembly 1 can use the magnetic principle to detect the position or proximity of an object, and is commonly used in industrial automation and safety control systems to ensure the safety of equipment and personnel, and the fixing assembly 2 is used to cooperate with the switch assembly 1, and the fixing assembly 2 can contact the slide groove on the cylinder, so that the switch assembly 1 can be quickly installed on the cylinder through the fixing assembly 2;

[0028] like Figure 1 and Figure 2 As shown, the switch assembly 1 includes a housing 11, and fixing bars 13 are fixedly installed at both ends of the outer side of the housing 11, and a slider 21 is slidably installed on the outer side of the fixing bar 13, so that the slider 21 can be combined with the outer side of the housing 11 by inserting the fixing bar 13, and the slider 21 will contact the slide groove of the cylinder. At this time, the slider 21 can be slid to the slide groove, so that the switch assembly 1 is successfully installed on the cylinder;

[0029] At the same time, a turntable 24 is fixedly installed on the outer side of the fixing bar 13, and a rotating piece 25 is rotatably connected to the turntable 24. The turntable 24 is used to clamp the rotating piece 25 and can also be rotated and adjusted. A bolt 26 is arranged on the rotating piece 25. A threaded hole 23 is opened on the side of the slider 21 close to the bolt 26. The threaded hole 23 and the bolt 26 are adapted to each other, so that when the slider 21 is installed on the fixing bar 13, the rotating piece 25 can be rotated and adjusted on the turntable 24 to drive the synchronous operation of the bolt 26. When the bolt 26 is adjusted to the aligned position of the threaded hole 23, the bolt 26 can be rotated to the inside of the threaded hole 23, so that the slider 21 can be fixed on the fixing bar 13, so that the slider 21 and the housing 11 are integrated to prevent displacement.

[0030] When the bolt 26 is removed, the rotating piece 25 will fall due to inertia, which will cause the rotating piece 25 to contact between the slider 21 and the fixing bar 13. At this time, when the slider 21 is taken out from the fixing bar 13, it will be blocked by the rotating piece 25, making it inconvenient to take out the slider 21. For this reason:

[0031] The support plate 14 is fixedly mounted on the outer side of the fixing bar 13, and the support plate 14 and the rotating piece 25 are in a horizontal position. When the bolt 26 is disassembled, after the bolt 26 is separated from the threaded hole 23 and taken out, the rotating piece 25 will fall due to inertia. At this time, the supporting plate 14 can block the rotating piece 25, thereby preventing the rotating piece 25 from being vertical, so that the slider 21 can be smoothly taken out of the fixing bar 13 without being blocked.

[0032] like Figure 4 As shown, a baffle 27 is fixedly installed on one side of the fixing bar 13 away from the support plate 14, and the width of the baffle 27 is greater than the width of the fixing bar 13, so that when the slider 21 is installed on the fixing bar 13, the baffle 27 can block the slider 21, thereby preventing the slider 21 from being offset during installation;

[0033] At the same time, a plurality of groups of bar holes 22 are provided at both ends of the inner part of the slider 21, and the inner diameters of the plurality of bar holes 22 are inconsistent, so that the slider 21 can be installed on the four groups of support bars on the outer side of the cylinder through the bar holes 22, and the slider 21 can make the installation method of the switch assembly 1 more extensive;

[0034] like Figure 3As shown, the housing 11 is provided with a sensing element 15, which is used as the overall working component of the position switch. The sensing element 15 may contain a reed switch (not shown) inside. The reed switch has two groups of metal springs inside, wherein there is a very small gap between the two groups of metal springs. After the switch is connected to the positive and negative power supplies, the cylinder works at this time, and the internal parts of the cylinder will move when working. The movement of the internal parts of the cylinder will pass through the two groups of metal springs, and at this time, the two groups of metal springs will be closed or disconnected through magnetism.

[0035] At the same time, the induction element 15 is also provided with a wire collection block, which is used to connect external wires, and a wire cap 12 is provided at one end of the housing 11, so that the external wires can be connected to the induction element 15 through the wire cap 12;

[0036] It should be noted that the maximum current of the switch assembly 1 can be 2.5A, and the actual operating temperature of the switch assembly 1 can be -60°C to +120°C / -76°F to +248°F.

[0037] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An explosion-proof magnetic position switch, comprising a switch assembly (1), wherein the switch assembly (1) comprises a housing (11), characterized in that: Both ends of the outer side of the housing (11) are fixedly mounted with fixing strips (13); a fixing assembly (2) is arranged at the bottom of the switch assembly (1); the fixing assembly (2) comprises a slider (21); the slider (21) is plugged into the outer side of the wire cap (12); a cylinder is arranged on the outer side of the slider (21); a slide groove is provided on the cylinder; the slider (21) is slidably connected to the slide groove.

2. The explosion-proof magnetic position switch according to claim 1, characterized in that: A rotating disk (24) is fixedly mounted on the outer side of the fixing bar (13), a rotating plate (25) is rotatably connected to the rotating disk (24), a bolt (26) is arranged on the rotating plate (25), a threaded hole (23) is provided on the side of the sliding block (21) close to the bolt (26), and the threaded hole (23) and the bolt (26) are adapted to each other.

3. The explosion-proof magnetic position switch according to claim 1, characterized in that: A support plate (14) is fixedly mounted on the outer side of the fixing strip (13), and the support plate (14) and the rotating plate (25) are in a horizontal position.

4. The explosion-proof magnetic position switch according to claim 1, characterized in that: A baffle (27) is fixedly mounted on one side of the fixing strip (13) away from the support plate (14), and the width of the baffle (27) is greater than the width of the fixing strip (13).

5. The explosion-proof magnetic position switch according to claim 1, characterized in that: A plurality of groups of strip holes (22) are provided at both ends of the interior of the sliding block (21), and the internal diameters of the plurality of groups of strip holes (22) are inconsistent.

6. The explosion-proof magnetic position switch according to claim 1, characterized in that: An induction component (15) is fixedly installed inside the housing (11), and a wire cap (12) is fixedly installed at one end of the housing (11).

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