Oil-proof device for connector of eddy current sensor

Abstract

The utility model belongs to the technical field of eddy current sensors, and particularly relates to an eddy current sensor connector oil-proof device which comprises an eddy current sensor body and a connector, the eddy current sensor body is movably connected with the connector, and a first limiting ring is integrally formed on the surface of the outer wall of the eddy current sensor body. The surface of the eddy current sensor body is movably sleeved with an oil-proof conical cap, the open end face of the oil-proof conical cap faces the connector, the inner cavity wall of the oil-proof conical cap abuts against the surface of the first limiting ring, the surface of the eddy current sensor body is in threaded connection with a locking screw ring, and a rubber conical insertion cap is movably inserted into the open end of the oil-proof conical cap. The oil-proof conical caps are movably arranged on the surfaces of the eddy current sensor body and the connector, and the two ends of each oil-proof conical cap are sealed, so that oil can be prevented from entering the joint of the eddy current sensor body and the connector in the use process, and the working stability of the eddy current sensor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of eddy current sensors, in particular to an eddy current sensor joint oil prevention device. Background Art

[0002] The eddy current sensor can statically and dynamically measure the distance between the measured metal conductor and the probe surface in a non-contact, high-linear, and high-resolution manner. It is a non-contact linear measurement tool. The eddy current sensor can accurately measure the static and dynamic relative displacement changes between the measured object (which must be a metal conductor) and the probe end face. Through patent search, it was found that the publication number: CN102072694B discloses an eddy current distance sensor, which can increase the measurement distance of the eddy current distance sensor when the coil installation space of the eddy current distance sensor is limited.

[0003] Publication number: CN102072694B. During the use of an eddy current distance sensor disclosed, the connection between the eddy current sensor and the connector is exposed. During operation, oil splashed by the machine penetrates into the connection between the eddy current sensor and the connector, resulting in poor contact between the eddy current sensor and the connector, and in severe cases, the eddy current sensor may be damaged. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes an oil-proof device for the eddy current sensor connector. By movably setting an oil-proof cone cap on the surface of the eddy current sensor body and the connector, and sealing both ends of the oil-proof cone cap, oil can be prevented from entering the connection between the eddy current sensor body and the connector during use, which can improve the stability of the eddy current sensor during operation, thereby solving the problems raised in the background technology.

[0005] In order to solve the above technical problems, the utility model provides an eddy current sensor joint oil prevention device, comprising an eddy current sensor body and a connector, wherein the eddy current sensor body is movably connected to the connector;

[0006] A No. 1 limit ring is integrally formed on the outer wall surface of the eddy current sensor body, an oil-proof cone cap is movably sleeved on the surface of the eddy current sensor body, the open end of the oil-proof cone cap faces the connector, the inner cavity wall of the oil-proof cone cap abuts against the surface of the No. 1 limit ring, and a locking screw ring is threadedly connected to the surface of the eddy current sensor body;

[0007] The open end of the oil-proof cone cap is movably plugged with a rubber cone plug-in cap, and the inner wall of the rubber cone plug-in cap abuts against the outer wall surface of the connector.

[0008] Preferably, a rubber sealing pad is movably provided on the surface of the No. 1 limiting ring, and the locking screw ring abuts against the surface of the rubber sealing pad.

[0009] Preferably, a No. 2 limiting ring is integrally formed on the outer wall surface of the connector, and the end of the rubber conical plug cap abuts against the surface of the No. 2 limiting ring.

[0010] Preferably, a limiting protrusion is integrally formed on the outer wall surface of the rubber conical plug cap, and the limiting protrusion is an arc-shaped structure.

[0011] Preferably, a limiting groove is provided on the inner wall of the oil-proof cone cap at a position corresponding to the position of the limiting protrusion, and the limiting groove is engaged with the limiting protrusion.

[0012] Preferably, a storage cavity is formed between the rubber conical plug-in cap in the inner cavity of the oil-proof cone cap and the locking screw ring, and a desiccant ring is movably provided in the storage cavity.

[0013] Preferably, a splicing screw hole is provided on the surface of the eddy current sensor body, and a splicing thread head is integrally formed at the end of the connector, and the splicing thread head is threadedly connected to the splicing screw hole.

[0014] The above technical solution of the utility model has the following beneficial technical effects:

[0015] 1. In the utility model, the rubber conical plug-in cap is plugged into the open end of the oil-proof cone cap, and the end of the rubber conical plug-in cap abuts against the surface of the No. 2 limiting ring. The No. 2 limiting ring can limit the rubber conical plug-in cap. The open end of the oil-proof cone cap can be sealed by the rubber conical plug-in cap. The connection between the eddy current sensor body and the connector is covered in the oil-proof cone cap, which can prevent oil from entering the connection between the eddy current sensor body and the connector, and improve the oil resistance of the connection between the eddy current sensor body and the connector.

[0016] 2. In the utility model, a storage chamber is formed between the rubber conical plug-in cap in the inner cavity of the oil-proof cone cap and the locking screw ring. A desiccant ring is arranged in the storage chamber. The desiccant ring can absorb water vapor through the desiccant in the inner cavity to ensure the dryness of the connection between the eddy current sensor body and the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional structure diagram of an oil-proof device for an eddy current sensor joint of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of an eddy current sensor joint oil protection device of the utility model;

[0019] Figure 3 This is a schematic diagram of the exploded structure of the installation of an oil-proof cone cap of an oil-proof device for an eddy current sensor joint of the utility model;

[0020] Figure 4The utility model is a schematic diagram of the connection structure of an eddy current sensor body and a connector of an eddy current sensor connector oil protection device.

[0021] Description of reference numerals:

[0022] 1. Eddy current sensor body; 2. Connector; 3. No. 1 limit ring; 4. Oil-proof cone cap; 5. Rubber sealing gasket; 6. Locking screw ring; 7. No. 2 limit ring; 8. Rubber cone plug cap; 9. Limiting protrusion; 10. Limiting slot; 11. Desiccant ring; 12. Splicing screw hole; 13. Splicing threaded head. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0024] like Figure 1-4 As shown, the utility model proposes an oil-proof device for an eddy current sensor connector, comprising an eddy current sensor body 1 and a connector 2, wherein the eddy current sensor body 1 is movably connected to the connector 2; a No. 1 limit ring 3 is integrally formed on the outer wall surface of the eddy current sensor body 1, an oil-proof cone cap 4 is movably sleeved on the surface of the eddy current sensor body 1, the open end of the oil-proof cone cap 4 faces the connector 2, the inner cavity wall of the oil-proof cone cap 4 abuts against the surface of the No. 1 limit ring 3, and a locking screw ring 6 is threadedly connected to the surface of the eddy current sensor body 1; a rubber conical plug-in cap 8 is movably inserted into the open end of the oil-proof cone cap 4, and the inner wall of the rubber conical plug-in cap 8 abuts against the outer wall surface of the connector 2.

[0025] It should be noted that the locking screw ring 6 is connected to the thread on the outer wall surface of the eddy current sensor body 1, and abuts on the No. 1 limiting ring 3, so as to quickly fix the oil-proof cone cap 4, and the rubber conical plug-in cap 8 is plugged into the open end of the oil-proof cone cap 4, and the end of the rubber conical plug-in cap 8 abuts on the surface of the No. 2 limiting ring 7. The No. 2 limiting ring 7 can limit the rubber conical plug-in cap 8, and the open end of the oil-proof cone cap 4 can be sealed by the rubber conical plug-in cap 8. The connection between the eddy current sensor body 1 and the connector 2 is covered in the oil-proof cone cap 4, which can prevent oil from entering the connection between the eddy current sensor body 1 and the connector 2, and can improve the oil resistance of the connection between the eddy current sensor body 1 and the connector 2.

[0026] In this embodiment, if Figure 1 and Figure 3As shown, a rubber sealing pad 5 is movably provided on the surface of the No. 1 limiting ring 3, the locking screw ring 6 abuts against the surface of the rubber sealing pad 5, a No. 2 limiting ring 7 is integrally formed on the outer wall surface of the connector 2, and the end of the rubber conical plug cap 8 abuts against the surface of the No. 2 limiting ring 7.

[0027] It should be noted that a rubber sealing gasket 5 is provided between the No. 1 limiting ring 3 and the locking screw ring 6 , and the connection between the oil-proof cone cap 4 and the eddy current sensor body 1 can be sealed by clamping the rubber sealing gasket 5 .

[0028] In this embodiment, if Figure 1 and Figure 3 As shown, a limiting protrusion 9 is integrally formed on the outer wall surface of the rubber conical plug-in cap 8, and the limiting protrusion 9 is an arc-shaped structure. A limiting slot 10 is provided on the inner wall of the oil-proof conical cap 4 at a position corresponding to the position of the limiting protrusion 9, and the limiting slot 10 is snap-connected with the limiting protrusion 9.

[0029] It should be noted that the limiting protrusion 9 and the limiting groove 10 are engaged with each other to limit the rubber conical plug-in cap 8, thereby improving the stability of the fixation of the rubber conical plug-in cap 8, and the rubber conical plug-in cap 8 and the second limiting ring 7 are limited to each other to prevent the connector 2 from loosening.

[0030] In this embodiment, if Figure 1 and Figure 3 As shown, a storage cavity is formed between the rubber conical plug-in cap 8 in the inner cavity of the oil-proof cone cap 4 and the locking screw ring 6, and a desiccant ring 11 is movably provided in the storage cavity.

[0031] It should be noted that a storage chamber is formed between the rubber conical plug-in cap 8 in the inner cavity of the oil-proof cone cap 4 and the locking screw ring 6, and a desiccant ring 11 is provided in the storage chamber. The desiccant ring 11 can absorb water vapor through the desiccant in the inner cavity to ensure the dryness of the connection between the eddy current sensor body 1 and the connector 2.

[0032] In this embodiment, if Figure 4 As shown, a splicing screw hole 12 is opened on the surface of the eddy current sensor body 1, and a splicing thread head 13 is integrally formed at the end of the connector 2, and the splicing thread head 13 is threadedly connected to the splicing screw hole 12.

[0033] It should be noted that the connector 2 is threadedly connected to the splicing screw hole 12 via the splicing thread head 13 , so that the eddy current sensor body 1 and the connector 2 can be quickly spliced.

[0034] The working principle and use process of the utility model are as follows: the oil-proof cone cap 4 is sleeved on the surface of the eddy current sensor body 1, and the inner wall of the oil-proof cone cap 4 abuts on the No. 1 limiting ring 3. At the same time, the connector 2 is threadedly connected to the splicing screw hole 12 through the splicing thread head 13, so that the eddy current sensor body 1 and the connector 2 can be quickly spliced. The locking screw ring 6 is connected to the thread on the outer wall surface of the eddy current sensor body 1 and abuts on the No. 1 limiting ring 3, so the oil-proof cone cap 4 can be quickly fixed. A rubber sealing gasket 5 is provided between the No. 1 limiting ring 3 and the locking screw ring 6. The connection between the oil-proof cone cap 4 and the eddy current sensor body 1 can be sealed by clamping the rubber sealing gasket 5. The rubber conical plug-in cap 8 is plugged into the open end of the oil-proof cone cap 4, and the end of the rubber conical plug-in cap 8 abuts on the surface of the No. 2 limiting ring 7. The No. 2 limiting ring 7 can limit the rubber conical plug-in cap 8. The open end of the oil-proof cone cap 4 can be sealed through the rubber conical plug-in cap 8, and the connection between the eddy current sensor body 1 and the connector 2 is covered in the oil-proof cone cap 4, which can prevent oil from entering the connection between the eddy current sensor body 1 and the connector 2, and improve the oil resistance of the connection between the eddy current sensor body 1 and the connector 2. The rubber conical plug-in cap 8 can be limited by the limit protrusion 9 and the limit groove 10, thereby improving the stability of the fixation of the rubber conical plug-in cap 8, and the rubber conical plug-in cap 8 and the second limit ring 7 are limited to each other to prevent the connector 2 from loosening. A storage chamber is formed between the rubber conical plug-in cap 8 in the inner cavity of the oil-proof cone cap 4 and the locking screw ring 6, and a desiccant ring 11 is provided in the storage chamber. The desiccant ring 11 can absorb water vapor through the desiccant in the inner cavity to ensure the dryness of the connection between the eddy current sensor body 1 and the connector 2.

[0035] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims or the equivalent forms of such scope and boundaries.

Claims

1. An eddy current sensor joint oil-proof device, characterized in that: It comprises an eddy current sensor body (1) and a connector (2), wherein the eddy current sensor body (1) is movably connected to the connector (2); The outer wall surface of the eddy current sensor body (1) is integrally formed with a first limiting ring (3); the surface of the eddy current sensor body (1) is movably sleeved with an oil-proof cone cap (4); the open end of the oil-proof cone cap (4) faces the connector (2); the inner cavity wall of the oil-proof cone cap (4) abuts against the surface of the first limiting ring (3); and the surface of the eddy current sensor body (1) is threadedly connected with a locking screw ring (6); The open end of the oil-proof cone cap (4) is movably plugged with a rubber cone plug-in cap (8), and the inner wall of the rubber cone plug-in cap (8) abuts against the outer wall surface of the connector (2).

2. The oil-proof device for an eddy current sensor joint according to claim 1, characterized in that: A rubber sealing pad (5) is movably provided on the surface of the No. 1 limiting ring (3), and the locking screw ring (6) abuts against the surface of the rubber sealing pad (5).

3. The oil-proof device for an eddy current sensor joint according to claim 1, characterized in that: A second limiting ring (7) is integrally formed on the outer wall surface of the connector (2), and the end of the rubber conical plug cap (8) abuts against the surface of the second limiting ring (7).

4. The oil-proof device for an eddy current sensor joint according to claim 1, characterized in that: The outer wall surface of the rubber conical plug cap (8) is integrally formed with a limiting protrusion (9).

5. The oil-proof device for an eddy current sensor joint according to claim 4, characterized in that: The limiting protrusion (9) is an arc-shaped structure.

6. The oil-proof device for an eddy current sensor joint according to claim 4, characterized in that: A limiting groove (10) is provided at a position of the inner wall of the oil-proof cone cap (4) corresponding to the position of the limiting protrusion (9), and the limiting groove (10) is engaged with the limiting protrusion (9).

7. The oil-proof device for an eddy current sensor joint according to claim 1, characterized in that: A storage cavity is formed between the rubber cone plug-in cap (8) in the inner cavity of the oil-proof cone cap (4) and the locking screw ring (6), and a desiccant ring (11) is movably arranged in the storage cavity.

8. The oil-proof device for an eddy current sensor joint according to claim 1, characterized in that: The surface of the eddy current sensor body (1) is provided with a splicing screw hole (12).

9. The oil-proof device for an eddy current sensor joint according to claim 8, characterized in that: A splicing thread head (13) is integrally formed at the end of the connecting head (2), and the splicing thread head (13) is threadably connected to the splicing screw hole (12).

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