Ceramic packaging long-distance proximity switch

Abstract

The utility model discloses a ceramic packaging remote proximity switch, which comprises a head protection part, a shell and a nut, the head protection part is provided with a connecting cylinder with a preset length, and one end of the connecting cylinder is provided with a head protection covering an induction end; the shell is provided with a long cylinder part, and the long cylinder part is arranged outside the proximity switch in a sleeving manner; and the nut is arranged between the head protection part and the shell. According to the proximity switch, the induction protection head packaged by ceramic is arranged at the end part close to the open end and is fixedly connected with the nut, so that the proximity switch is convenient to disassemble and assemble, the whole proximity switch can be protected, the wear resistance is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of proximity switches, in particular to a ceramic packaged long-distance proximity switch. Background Art

[0002] The sensing end and shell of the long-distance proximity switch in the prior art are split structures, which are prone to signal and transmission losses, resulting in deviations in the sensing distance of the proximity switch. When sampling items in a vehicle, the long-term use of the proximity switch installed on one side of the sampler will cause irreversible wear on the end of the proximity switch, thereby reducing the connection strength and sealing, and shortening the service life of the proximity switch. Utility Model Content

[0003] One object of the utility model is to provide a ceramic packaged long-distance proximity switch which can solve at least any aspect of the above-mentioned technical problems.

[0004] A further object of the present invention is to avoid end wear of the proximity switch.

[0005] Another further object of the present invention is to increase the service life of the proximity switch.

[0006] In particular, the utility model provides a ceramic packaged long-distance proximity switch, comprising a head guard having a connection tube of a preset length, one end of the connection tube being provided with a head guard covering the sensing end;

[0007] A housing, wherein the housing has a long cylindrical portion, and the long cylindrical portion is sleeved outside the proximity switch;

[0008] A nut is disposed between the head guard and the housing.

[0009] Furthermore, the head guard is made of ceramic material.

[0010] Furthermore, at least two nuts are provided, and the head guard is fixedly connected to one of the nuts, and one end of the outer shell is also fixedly connected to the other nut.

[0011] Furthermore, a through hole is provided at the tail of the proximity switch, and a cable is connected in the through hole.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model provides a ceramic-packaged induction protection head at the end of the proximity switch, and is fixedly connected with a nut, so that the induction protection head is easy to disassemble and install, and can protect the entire proximity switch, thereby increasing the wear resistance and prolonging the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the ceramic protective head of the utility model.

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure in the AA direction of the figure of the utility model.

[0019] In the figure: 1. housing, 2. cable, 3. head guard, 4. nut, 5. indicator light, 6. through hole, 7. threaded part, 8. sensing end. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model. Figure 2 It is a schematic diagram of the internal structure of the utility model. Figure 3 This is a schematic diagram of the structure of the ceramic protective head of the utility model. Figure 4 It is a schematic diagram of the cross-sectional structure in the AA direction of the figure of the utility model.

[0022] The scheme of this embodiment provides a ceramic packaged long-distance proximity switch, including a head guard 3, a shell 1, and a nut 4. The head guard 3 has a connecting tube with a preset length, and the head guard 3 is made of ceramic material. One end of the connecting tube is provided with a head guard covering the sensing end 8; the shell 1 has a long cylindrical portion, and the long cylindrical portion is sleeved on the outside of the proximity switch; the nut 4 is arranged between the head guard 3 and the shell 1, wherein the nut 4 is a hexagonal nut 4, and a threaded portion 7 is provided on the outside of the proximity switch, which can be directly screwed in and fixed by the thread when in use.

[0023] It should be further explained that at least two nuts 4 are provided, and the head guard 3 is fixedly connected to one of the nuts 4 , and one end of the housing 1 is also fixedly connected to the other nut 4 . A sealing ring can be provided between the nuts 4 , and extrusion sealing is performed through the two nuts 4 .

[0024] It should be further explained that a through hole 6 is provided at the tail of the proximity switch, a cable 2 is connected in the through hole 6 , and an indicator light 5 is provided on one side of the through hole 6 .

[0025] Working principle of this utility model:

[0026] When in use, a ceramic-encapsulated inductive protection head is provided at the end of the proximity opening and is fixedly connected to the nut 4, so that disassembly and installation are facilitated, and the entire proximity switch can be protected, and wear resistance is increased, thereby increasing service life.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Ceramic package long-distance proximity switch, characterized in that: include: A head guard (3), the head guard (3) having a connection tube of a preset length, one end of the connection tube being provided with a head guard covering the sensing end (8); A housing (1), the housing (1) having a long cylindrical portion, the long cylindrical portion being sleeved outside the proximity switch; A nut (4), wherein the nut (4) is arranged between the head guard (3) and the housing (1).

2. The ceramic packaged long-distance proximity switch according to claim 1, characterized in that: The head guard (3) is made of ceramic material.

3. The ceramic packaged long-distance proximity switch according to claim 1, characterized in that: At least two nuts (4) are provided, and the head guard (3) is fixedly connected to one of the nuts (4), and one end of the housing (1) is also fixedly connected to the other nut (4).

4. The ceramic packaged long-distance proximity switch according to claim 1, characterized in that: A through hole (6) is provided at the tail of the proximity switch, and a cable (2) is connected in the through hole (6).

Images