Waterproof metal magnetic sensor convenient to install

Abstract

The utility model relates to the field of magnetic sensors, in particular to a waterproof metal magnetic sensor convenient to install, which comprises a metal shell. One side of the metal shell is provided with a locking assembly, and the other side of the metal shell is provided with a containing cavity used for being communicated with the outside. A PCBA main board is arranged in the containing cavity, the outer side of the PCBA main board is sleeved with an insulator, an insulating inner shell is arranged on the outer side of the insulator, and a rear end cover used for being matched with the insulating inner shell is installed at the end, close to the containing cavity, of the metal outer shell. The beneficial effects of the utility model are that the sensor can be conveniently installed through the locking assembly so as to be suitable for some cylinders which are externally installed in a narrow space, and the PCBA board is tightly wrapped by the metal outer shell, the insulator and the insulating inner shell, so that the waterproof performance is improved, the damage of an external high-pressure environment can be effectively prevented, and the service life of the sensor is prolonged. The structural strength is improved, and the circuit structure on the PCBA board is prevented from being damaged by the outside.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of magnetic sensor, especially to a waterproof metal magnetic sensor convenient to install. BACKGROUND

[0002] Due to the higher and higher industrial electrical automation degree, the magnetic induction switch is applied to various working environments and needs to meet different industrial industry field technical demands, and the magnetic induction switch is applied more and more widely in cylinder stroke and action accurate control,

[0003] However, the sealing and protection of the magnetic induction switch shell on the market are insufficient, so that the internal structure circuit cannot be better protected, and the installation and fixing mode is an up-down penetrating screw structure, so that the installation and adjustment mode has greater limitations. UTILITY MODEL CONTENTS

[0004] The utility model provides a technical scheme to overcome the above-mentioned situation and solve the above-mentioned problems.

[0005] A waterproof metal magnetic sensor convenient to install, comprising a metal shell,

[0006] One side of the metal shell is provided with a locking assembly, and the other side of the metal shell is provided with a containing cavity for conducting with the outside,

[0007] The inside of the containing cavity is provided with a PCBA board, the outside of the PCBA board is sleeved with an insulator, the outside of the insulator is provided with an insulating inner shell, and one end of the metal shell close to the containing cavity is provided with a rear end cover for cooperating with the insulating inner shell, so that the containing cavity is separated from the outside, the PCBA board is provided with a connecting line for connecting with the outside, and the outer end of the connecting line extends outward through the rear end cover.

[0008] As a further scheme of the utility model: the locking assembly comprises a fastening thread hole opened in one side of the metal shell, a adjusting screw is detachably and threadedly installed in the fastening thread hole, a fastening stepped hole is arranged at the inner end of the fastening thread hole, the fastening stepped hole penetrates the upper and lower sides of the metal shell at both ends, a fixed pin is movably installed in the fastening stepped hole, and the end adjacent to the adjusting screw of the fixed pin and the adjusting screw are both provided with force applying cones that cooperate with each other, so that the adjusting screw can drive the fixed pin to move in the fastening stepped hole.

[0009] As a further scheme of the utility model: the outside of the fixed pin is sleeved with a spring, and the both ends of the spring are in contact with the force applying cone and the inner bottom of the fastening stepped hole respectively.

[0010] As a further scheme of the utility model: the fastening thread hole and the upper end face of the metal shell are arranged in parallel, and the fastening thread hole and the fastening stepped hole are arranged vertically.

[0011] As a further scheme of the utility model: the fastening stepped hole is provided with a sealing hole plug away from one end of the fixing pin.

[0012] As a further scheme of the utility model: the metal shell is provided with a mounting hole at the upper end of the accommodating cavity, and the mounting hole is internally provided with a lamp body in electrical connection with the PCBA board.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the locking assembly can conveniently install the sensor, is suitable for being externally installed on a narrow space cylinder, and tightly wraps the PCBA board through the metal shell, the insulator and the insulating inner shell, improves the waterproofness, effectively prevents the damage of the high-pressure environment, improves the structural strength, and avoids the damage of the circuit structure on the PCBA board by the outside.

[0014] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without paying creative labor.

[0016] Figure 1 It is the structural schematic diagram of the utility model.

[0017] Figure 2 It is the explosion diagram of the utility model.

[0018] Figure 3 It is the sectional view of the utility model.

[0019] Figure 4 It is the use state diagram of the utility model.

[0020] As shown in the figure: 1, metal shell, 2, accommodating cavity, 3, PCBA board, 4, insulator, 5, insulating outer shell, 6, rear end cover, 7, connecting wire, 8, fastening screw hole, 9, adjusting screw, 10, fastening stepped hole, 11, fixing pin, 12, force cone, 13, spring, 14, sealing hole plug, 15, mounting hole, 16, lamp body. DETAILED DESCRIPTION

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0023] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0024] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Please refer to Figures 1-4 A waterproof metal magnetic sensor convenient to install, comprising a metal shell 1;

[0026] One side of the metal shell 1 is provided with a locking assembly, and the other side of the metal shell 1 is provided with a containing cavity 2 for communication with the outside;

[0027] The inside of the accommodating cavity 2 is provided with a PCBA board 3, the outer side of the PCBA board 3 is sleeved with an insulator 4, the outer side of the insulator 4 is provided with an insulating inner shell 5, a rear end cover 6 for cooperating with the insulating inner shell 5 is installed on one end of the metal shell 1 close to the accommodating cavity 2, so that the accommodating cavity 2 is cut off from the outside, and a connecting line 7 for connecting with the outside is arranged on the PCBA board 3, and the outer end of the connecting line 7 extends outward through the rear end cover 6.

[0028] The close wrapping of the PCBA board 3 by the metal shell 1, the insulator 4 and the insulating inner shell 5 improves the waterproofness, effectively prevents damage from the high-pressure environment outside, improves the structural strength, and avoids damage to the circuit structure on the PCBA board 3 by the outside; the locking assembly can conveniently install the sensor, and is suitable for being installed on a cylinder with a small space.

[0029] Further scheme: the locking assembly comprises a fastening threaded hole 8 opened in one side of the metal shell 1, an adjusting screw 9 detachably and threadedly installed in the fastening threaded hole 8, a fastening stepped hole 10 provided at the inner end of the fastening threaded hole 8, the fastening stepped hole 10 penetrating through the upper and lower sides of the metal shell 1 at two ends thereof, and a fixed pin 11 movably installed in the fastening stepped hole 10, one end of the fixed pin 11 and the adjusting screw 9 being provided with force applying cones 12 matched with each other, so that the adjusting screw 9 can push the fixed pin 11 to move in the fastening stepped hole 10.

[0030] In use, the adjusting screw 9 is linearly moved in the fastening threaded hole 8 by rotating the adjusting screw 9, and in the process of moving the adjusting screw 9 to the fastening stepped hole 10, the two force applying cones 12 matched with each other push the fixed pin 11 to protrude downward from the outer side of the metal shell 1, so as to be connected with an external cylinder, and the sensor can be fixed on the cylinder, and vice versa, when it is necessary to disassemble, the adjusting screw 9 is loosened, so as to conveniently disassemble and assemble the sensor.

[0031] Further scheme: the outer side of the fixed pin 11 is sleeved with a spring 13, and the two ends of the spring 13 are in contact with the force applying cones 12 and the inner bottom of the fastening stepped hole 10, respectively.

[0032] The fixed pin 11 is reset to the fastening stepped hole 10 by the spring 13, so as to avoid affecting the disassembly of the sensor.

[0033] Further scheme: the fastening threaded hole 8 is parallelly arranged with the upper end face of the metal shell 1, and the fastening threaded hole 8 and the fastening stepped hole 10 are perpendicularly arranged.

[0034] The sensor can be conveniently fixed on the external cylinder.

[0035] Further scheme: the end of the fastening stepped hole 10 away from the fixing pin 11 is provided with a sealing hole plug 14.

[0036] It can play a dustproof role, and also protects the fixing pin 11 and the spring 13.

[0037] Further scheme: the metal shell 1 is provided with a mounting hole 15 at the upper end of the accommodating cavity 2, and the inside of the mounting hole 15 is provided with a lamp body 16 which is electrically connected with the PCBA board 3.

[0038] It can play a prompting role for the staff when the sensor is working.

[0039] It should also be noted that the relational terms herein such as first and second and the like can only be used to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between or among the entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0040] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waterproof metal magnetic sensor for easy installation, characterized by: Including metal shell (1); One side of the metal shell (1) is provided with a locking assembly, and the other side of the metal shell (1) is provided with a containing cavity (2) for conducting with the outside; The inside of the containing cavity (2) is provided with a PCBA board (3), the outside of the PCBA board (3) is sleeved with an insulator (4), the outside of the insulator (4) is provided with an insulating inner shell (5), one end of the metal shell (1) close to the containing cavity (2) is provided with a rear end cover (6) for cooperating with the insulating inner shell (5), so that the containing cavity (2) is separated from the outside, the PCBA board (3) is provided with a connecting line (7) for connecting with the outside, and the outer end of the connecting line (7) extends outward through the rear end cover (6).

2. The waterproof metal magnetic sensor for easy installation of claim 1, wherein: The locking assembly comprises a fastening threaded hole (8) opened in one side of the metal shell (1), a adjusting screw (9) detachably screwed in the fastening threaded hole (8), a fastening stepped hole (10) provided at the inner end of the fastening threaded hole (8), the fastening stepped hole (10) penetrating the upper and lower sides of the metal shell (1) at both ends, a fixed pin (11) movably installed in the fastening stepped hole (10), and a force cone (12) provided at one end of the fixed pin (11) and the adjusting screw (9) adjacent to each other, so that the adjusting screw (9) can push the fixed pin (11) to move in the fastening stepped hole (10).

3. The easily installed, waterproof metal magnetic sensor of claim 2, wherein: The outside of the fixed pin (11) is sleeved with a spring (13), and the both ends of the spring (13) are in contact with the force cone (12) and the inner bottom of the fastening stepped hole (10) respectively.

4. The waterproof metal magnetic sensor for easy installation of claim 2, wherein: The fastening threaded hole (8) and the upper end surface of the metal shell (1) are arranged in parallel, and the fastening threaded hole (8) and the fastening stepped hole (10) are arranged perpendicular to each other.

5. The waterproof metal magnetic sensor for easy installation of claim 2, wherein: The end of the fastening stepped hole (10) away from the fixed pin (11) is provided with a sealing hole plug (14).

6. The easily installed, waterproof metal magnetic sensor of claim 1, wherein: The metal shell (1) is provided with a mounting hole (15) at the upper end of the containing cavity (2), and the inside of the mounting hole (15) is provided with a lamp body (16) electrically connected with the PCBA board (3).

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