Protective structure of inductance type proximity sensor

Abstract

The utility model relates to the technical field of sensors, in particular to a protective structure of an inductive proximity sensor, which comprises a sensor body, threads are arranged on the outer surface of the sensor body, a limiting plate is fixedly connected to the tail end of the sensor body, and a positioning ring is in threaded connection with one side, close to the limiting plate, of the sensor body. Extension plates are fixedly connected to the left side and the right side, close to the bottom, of the positioning ring, connecting screws are in threaded connection with the interiors of the extension plates, and L-shaped plates are in threaded connection with the ends of the connecting screws. Compared with the prior art, the utility model has the advantages that during use, the positioning ring is directly rotated to the tail end of the thread until the positioning ring is attached to the limiting plate, and the two extension plates are in a horizontal state, so that the connecting screw is aligned to the connecting hole on the L-shaped plate for threaded connection, thereby stably connecting the tail end of the sensor body with the L-shaped plate and preventing the tail end of the sensor body from being suspended; even if the tail end of the sensor body is pressed, the sensor body does not deform.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a protection structure for an inductive proximity sensor. Background Technique

[0002] At present, proximity sensors are widely used in various automated production lines, mechatronic equipment, and various industries such as petroleum, chemical industry, military, and scientific research. Proximity sensors can identify metal objects in a non-contact manner and have the characteristics of long service life and super firmness.

[0003] The existing inductive proximity sensors are usually installed on the vertical plate on one side of the conveyor belt. Usually, the inductive proximity sensor is directly fixed on the vertical plate with through holes by two nuts. Although this method can quickly install the inductive proximity sensor, the end of the sensor is suspended. Once the end of the sensor is subjected to pressure, it is easy to deform and cause damage to the sensor. Content of the Utility Model

[0004] The purpose of the utility model aims to solve at least one of the technical defects.

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technique, and provide a protection structure for an inductive proximity sensor.

[0006] The purpose of the utility model is realized by the following technical solutions: a protection structure for an inductive proximity sensor, including a sensor body, the outer surface of the sensor body is provided with threads, the end of the sensor body is fixedly connected with a limiting plate, a positioning ring is threadedly connected to one side of the sensor body close to the limiting plate, extension plates are fixedly connected to the left and right sides of the positioning ring close to the bottom, connection screws are threadedly connected inside the extension plates, and the ends of the connection screws are threadedly connected with L-shaped plates;

[0007] A through hole is provided on one side of the L-shaped plate, the sensor body is inserted into the through hole, a first nut is threadedly connected to the right side of the sensor body close to the L-shaped plate, a protective sleeve is fixedly connected to one side of the first nut, and a second nut is threadedly connected to the left side of the sensor body close to the L-shaped plate.

[0008] Preferably, the diameter of the limiting plate is larger than the diameter of the sensor body, the limiting plate is located at the end of the thread, and a threaded hole adapted to the thread is provided inside the positioning ring.

[0009] By adopting the above technical solutions, the positioning ring can be stably connected with the L-shaped plate through two connection screws at the bottom, thereby strengthening the stability of the end of the sensor body.

[0010] Preferably, the number of the extension plates is two, and the two extension plates are respectively welded to the left and right sides of the bottom of the positioning ring. The extension plates are rectangular plates, and screw holes adapted to the connecting screws are formed in the interiors of the extension plates.

[0011] By adopting the above technical solution, the extension plate located at the bottom can minimize the distance between it and the L-shaped plate, and minimize the length of the connecting screw to the greatest extent.

[0012] Preferably, the inner diameter of the first nut is the same as the inner diameter of the protective sleeve. The protective sleeve is a circular ring, the outer diameter of the protective sleeve is adapted to the diameter of the through hole, and the width of the protective sleeve is smaller than the thickness of the L-shaped plate.

[0013] By adopting the above technical solution, the protective sleeve can be perfectly clamped with the through hole on the L-shaped plate, avoiding friction between the thread and the through hole, and achieving the purpose of protecting the thread.

[0014] Preferably, the size of the second nut is the same as the size of the first nut, and both the first nut and the second nut are hexagonal nuts.

[0015] By adopting the above technical solution, after rotating the first nut to make the protective sleeve completely enter the interior of the through hole, rotating the second nut can cooperate with the first nut to stably connect the front end of the sensor body with the L-shaped plate.

[0016] Preferably, the L-shaped plate is composed of a vertical plate and a horizontal plate, and connection holes adapted to the connecting screws are formed on both the left and right sides of the horizontal plate.

[0017] Compared with the prior art, the present utility model has the following advantages:

[0018] 1. For the protection structure of the inductive proximity sensor, by setting a positioning ring, a positioning ring is threadedly connected to the side of the sensor body close to the limiting plate. Both the left and right sides of the positioning ring close to the bottom are fixedly connected with extension plates, and connecting screws are threadedly connected to the interiors of the extension plates. During use, directly rotate the positioning ring to the end of the thread until the positioning ring fits with the limiting plate. At this time, the two extension plates are in a horizontal state, align the connecting screws with the connection holes on the L-shaped plate and threadedly connect them, so as to stably connect the tail end of the sensor body with the L-shaped plate, avoiding the tail end of the sensor body from being suspended, and even if the tail end of the sensor body is pressed, it will not deform.

[0019] 2. The protective structure of the inductive proximity sensor. By setting the first nut, the right side of the sensor body close to the L plate is threadedly connected with the first nut, and a protective sleeve is fixedly connected to one side of the first nut. The left side of the sensor body close to the L plate is threadedly connected with the second nut. During use, insert the front end of the sensor body into the through hole on one side of the L plate. After fixing the connecting screw at the bottom of the positioning ring, rotate the first nut in the reverse direction towards the through hole until the protective sleeve is completely immersed in the interior of the through hole. Then rotate the second nut in the reverse direction towards the through hole, and the two nuts can stably connect the front end of the sensor body with the L plate. The protective sleeve can completely fill the through hole, preventing the threads on the sensor body from rubbing against the through hole, thus achieving the purpose of protecting the threads. Description of the Drawings

[0020] Figure 1 is a schematic structural view of the present utility model;

[0021] Figure 2 is a schematic structural view of the sensor body of the present utility model;

[0022] Figure 3 is a schematic structural view of the positioning ring of the present utility model;

[0023] Figure 4 is a schematic structural view of the first nut of the present utility model.

[0024] In the figure: 1 - sensor body, 2 - thread, 3 - limit plate, 4 - positioning ring, 5 - extension plate, 6 - connecting screw, 7 - L plate, 8 - first nut, 9 - protective sleeve, 10 - second nut. Detailed Embodiment

[0025] The additional aspects and advantages of the present utility model will be further given in the following description in conjunction with the drawings, and some will become obvious from the following description, or will be understood through the practice of the present utility model.

[0026] As Figures 1-3 shown, a protective structure of an inductive proximity sensor includes a sensor body 1. Threads 2 are provided on the outer surface of the sensor body 1. A limit plate 3 is welded to the tail end of the sensor body 1. A positioning ring 4 is threadedly connected to one side of the sensor body 1 close to the limit plate 3. Extension plates 5 are welded to both the left and right sides of the positioning ring 4 close to the bottom. Connecting screws 6 are threadedly connected inside the extension plates 5, and the end of the connecting screw 6 is threadedly connected to an L plate 7.

[0027] With the above settings, during use, directly rotate the positioning ring 4 to the end of the thread 2 until the positioning ring 4 fits against the limiting plate 3. At this time, the two extension plates 5 are in a horizontal state, align the connecting screw 6 with the connecting hole on the L-shaped plate 7 and thread-connect them, so as to stably connect the end of the sensor body 1 with the L-shaped plate 7, avoiding the end of the sensor body 1 from hanging in the air, and preventing the end of the sensor body 1 from deforming even when it is pressed.

[0028] As Figures 1-2 and Figure 4 shown, a through hole is provided on one side of the L-shaped plate 7, the sensor body 1 is inserted into the interior of the through hole, a first nut 8 is thread-connected to the right side of the sensor body 1 close to the L-shaped plate 7, a protective sleeve 9 is welded to one side of the first nut 8, and a second nut 10 is thread-connected to the left side of the sensor body 1 close to the L-shaped plate 7;

[0029] With the above settings, during use, insert the front end of the sensor body 1 into the through hole on one side of the L-shaped plate 7. After fixing the connecting screw 6 at the bottom of the positioning ring 4, rotate the first nut 8 in the reverse direction of the through hole until the protective sleeve 9 is completely immersed in the interior of the through hole, and then rotate the second nut 10 in the reverse direction of the through hole. The two nuts can stably connect the front end of the sensor body 1 with the L-shaped plate 7. The protective sleeve 9 can completely fill the through hole, avoiding friction between the thread 2 on the sensor body 1 and the through hole, and achieving the purpose of protecting the thread 2;

[0030] As a preferred technical solution of the present utility model, the diameter of the limiting plate 3 is larger than the diameter of the sensor body 1, the limiting plate 3 is located at the end of the thread 2, and a threaded hole adapted to the thread 2 is provided inside the positioning ring 4.

[0031] As a preferred technical solution of the present utility model, the number of the extension plates 5 is two, the two extension plates 5 are respectively welded to the left and right sides of the bottom of the positioning ring 4, the extension plates 5 are rectangular plates, and screw holes adapted to the connecting screw 6 are provided inside the extension plates 5.

[0032] As a preferred technical solution of the present utility model, the inner diameter of the first nut 8 is the same as the inner diameter of the protective sleeve 9, the protective sleeve 9 is a circular ring, the outer diameter of the protective sleeve 9 is adapted to the diameter of the through hole, and the width of the protective sleeve 9 is smaller than the thickness of the L-shaped plate 7.

[0033] As a preferred technical solution of the present utility model, the size of the second nut 10 is the same as the size of the first nut 8, and both the first nut 8 and the second nut 10 are hexagonal nuts.

[0034] As a preferred technical solution of the present utility model, the L-shaped plate 7 is composed of a vertical plate and a horizontal plate, and connecting holes adapted to the connecting screw 6 are provided on both the left and right sides of the horizontal plate.

[0035] The working process of the present utility model is as follows:

[0036] S1. Rotate the positioning ring 4 to the end of the thread 2 until the positioning ring 4 fits against the limit plate 3;

[0037] S2. Rotate the first nut 8 to the middle position of the sensor body 1;

[0038] S3. Insert the front end of the sensor body 1 into the inner part of the through hole on one side of the L plate 7, align the connecting screw 6 with the connecting hole on the L plate 7 and thread-connect them, so that the tail end of the sensor body 1 can be stably connected to the L plate 7;

[0039] S4. Rotate the first nut 8 in the reverse direction of the through hole until the protective sleeve 9 is completely immersed in the inner part of the through hole. Rotate the second nut 10 in the reverse direction of the through hole, and the two nuts can stably connect the front end of the sensor body 1 to the L plate 7. The protective sleeve 9 can completely fill the through hole to prevent the thread 2 on the sensor body 1 from rubbing against the through hole.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective structure for an inductive proximity sensor, characterized in that: It includes a sensor body (1), on the outer surface of the sensor body (1) there is a thread (2) provided, at the tail end of the sensor body (1) there is a limiting plate (3) fixedly connected, on the side of the sensor body (1) close to the limiting plate (3) there is a positioning ring (4) threadedly connected, on the left and right sides of the positioning ring (4) close to the bottom there are extension plates (5) fixedly connected respectively, inside the extension plate (5) there is a connecting screw (6) threadedly connected, and at the end of the connecting screw (6) there is an L-shaped plate (7) threadedly connected; On one side of the L-shaped plate (7) there is a through hole, the sensor body (1) is inserted into the inside of the through hole, on the right side of the sensor body (1) close to the L-shaped plate (7) there is a first nut (8) threadedly connected, on one side of the first nut (8) there is a protective sleeve (9) fixedly connected, and on the left side of the sensor body (1) close to the L-shaped plate (7) there is a second nut (10) threadedly connected.

2. The protective structure of an inductive proximity sensor according to claim 1, characterized in that: The diameter of the limiting plate (3) is larger than the diameter of the sensor body (1), the limiting plate (3) is located at the tail end of the thread (2), and inside the positioning ring (4) there is a threaded hole adapted to the thread (2).

3. The protective structure of an inductive proximity sensor according to claim 1, characterized in that: The number of the extension plates (5) is two, the two extension plates (5) are respectively welded to the left and right sides of the bottom of the positioning ring (4), the extension plate (5) is a rectangular plate, and inside the extension plate (5) there is a screw hole adapted to the connecting screw (6).

4. The protective structure of an inductive proximity sensor according to claim 1, characterized in that: The inner diameter of the first nut (8) is the same as the inner diameter of the protective sleeve (9), the protective sleeve (9) is a circular ring, the outer diameter of the protective sleeve (9) is adapted to the diameter of the through hole, and the width of the protective sleeve (9) is smaller than the thickness of the L-shaped plate (7).

5. The protective structure of an inductive proximity sensor according to claim 1, wherein: The size of the second nut (10) is the same as the size of the first nut (8), and both the first nut (8) and the second nut (10) are hexagonal nuts.

6. The protective structure of an inductive proximity sensor according to claim 1, characterized in that: The L-shaped plate (7) is composed of a vertical plate and a horizontal plate, and on the left and right sides of the horizontal plate there are connecting holes adapted to the connecting screw (6).

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