CN211086634U - Induction type magnetic field sensor - Google Patents

Abstract

The utility model provides an induction type magnetic field sensor, relate to sensor water repellent treatment technical field, including the casing and set up the sensor body in the casing, the casing has first interface and second interface, first interface and second interface are provided with first shutoff piece and second shutoff piece respectively, respectively through first sealing member sealing connection between first interface and the first shutoff piece and between second interface and the second shutoff piece, be provided with first logical groove in the second shutoff piece, be provided with the connector in the first logical groove, the connector passes through second sealing member sealing connection with first logical groove, the connector is used for being connected with sensor body electricity. The induction type magnetic field sensor can effectively reduce the failure caused by water inflow in the use process of the induction type magnetic field sensor.

Description

Induction type magnetic field sensor

Technical Field

The utility model relates to a sensor water repellent technical field particularly, relates to an induction type magnetic field sensor.

Background

The induction type magnetic field sensor has been widely applied as a signal receiving component of a geophysical electromagnetic prospecting instrument, and particularly provides a reliable tool for extracting underground weak magnetic field signals in methods of controllable Source Audio Frequency geodetic measurement CSAMT (Audio-Frequency magnetotelluric), magnetotelluric depth MT (magnetotelluric), transient electromagnetic TEM (transient electromagnetic) and the like.

The research of the induction type magnetic field sensor is earlier and the technology is more mature, and the existing products are sold. The research of the induction type magnetic field sensor is developed by a plurality of domestic units, and the commercialization is realized. The shape of the sensor is usually a rod, and the sensor is generally commonly used for ground work. However, when the sensor is used in rainy seasons or swamp and humid areas, water is easy to enter the sensor to cause functional failure, the maintenance cost is high, and the working efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an induction type magnetic field sensor can reduce induction type magnetic field sensor effectively and take place the inefficacy that the intaking leads to in the use.

The embodiment of the utility model is realized like this:

an aspect of the embodiment of the utility model provides an induction type magnetic field sensor, including the casing and set up in sensor body in the casing, the casing has first interface and second interface, first interface with the second interface is provided with first shutoff piece and second shutoff piece respectively, first interface with between the first shutoff piece and the second interface with respectively through first sealing member sealing connection between the second shutoff piece, be provided with first through-groove in the second shutoff piece, be provided with the connector in the first through-groove, the connector with first through-groove passes through second sealing member sealing connection, the connector be used for with sensor body electricity is connected. The induction type magnetic field sensor can effectively reduce the failure caused by water inflow in the use process of the induction type magnetic field sensor.

Optionally, in a preferred embodiment of the present invention, the first blocking element includes a first cover plate and a first connecting rod connected to the first cover plate, the second blocking element includes a second cover plate and a second connecting rod connected to the second cover plate, the first connecting rod and the second connecting rod respectively connect to the first interface and the second interface via threads, the first interface and the second interface are respectively provided with a first annular groove and a second annular groove, the first sealing assembly includes a sealing gasket and a sealing ring, the sealing gasket is respectively disposed between the first cover plate and the first interface, and the second cover plate and the second interface, and the sealing ring is respectively disposed between the first connecting rod and the first annular groove, and the second connecting rod are connected to the second cover plate Between the second annular grooves.

Optionally, in a preferred embodiment of the present invention, the first connecting rod and the second connecting rod are respectively provided with a first receiving groove and a second receiving groove, and the two sealing rings are respectively received in the first receiving groove and the second receiving groove.

Optionally, in a preferred embodiment of the present invention, a blind hole is disposed in the first blocking member.

Optionally, in the preferred embodiment of the present invention, a potting adhesive is further disposed between the sensor body and the first interface and between the sensor body and the second interface, respectively.

Optionally, in a preferred embodiment of the present invention, the first through groove includes a first groove and a second groove sequentially connected from the end close to the housing toward the end away from the housing, an inner diameter of the first groove is smaller than an inner diameter of the second groove, an end of the connector extends into the first groove to be fixed, and the first sealing element is disposed between the connector and the first groove.

Optionally, in a preferred embodiment of the present invention, the connector includes a cable socket, a cable plug and a cable line electrically connected in sequence, an end of the cable socket extends into the first groove and is fixed, the first sealing element is disposed between the cable socket and the first groove, and the cable socket is used for electrically connecting with the sensor body.

Optionally, in the preferred embodiment of the present invention, the cable further includes a third plugging member and a fourth plugging member, the third plugging member extends into the second groove, the third plugging member is connected to the second groove through a second sealing member, a second through groove is provided in the third plugging member, the fourth plugging member extends into the second through groove, the fourth plugging member is connected to the second through groove through a third sealing member, a third through groove is provided in the fourth plugging member, the cable sequentially passes through the second through groove and the third through groove extends out of the fourth plugging member.

Optionally, in a preferred embodiment of the present invention, the third plugging member includes a third cover plate and a third connecting rod connected to the third cover plate, the third connecting rod is connected to the second groove thread, and the second sealing member is disposed between the end surface of the third cover plate close to the second plugging member and the end surface of the second plugging member close to the third cover plate.

Optionally, in the preferred embodiment of the present invention, the second through groove includes a third groove, a communicating groove and a fourth groove which are sequentially communicated from the direction close to the end of the second plugging member toward the end far away from the end of the second plugging member, the third groove, the fourth groove and the inner diameter of the communicating groove are sequentially reduced, the fourth plugging member includes a fourth cover plate and a fourth connecting rod connected to the fourth cover plate, the fourth connecting rod is in threaded connection with the fourth groove, and the third sealing member is disposed in the fourth groove and close to the end surface of the communicating groove.

The utility model discloses beneficial effect includes:

the induction type magnetic field sensor comprises a shell and a sensor body arranged in the shell, wherein the sensor body is accommodated in the shell, and the sensor is prevented from being in direct contact with water in the using process through waterproof components such as the shell. In order to enable the sensor body to be easily accommodated in the shell, the shell is provided with a first interface and a second interface, so that the sensor body can be placed into the shell through the first interface or the second interface. The opening of the shell is blocked by the first blocking piece and the second blocking piece which are respectively arranged on the first interface and the second interface, the first interface and the first blocking piece and the second interface and the second blocking piece are respectively in sealing connection through the first sealing piece, and therefore water is prevented from entering the shell through a gap between the first interface and the first blocking piece and/or a gap between the second interface and the second blocking piece to the greatest extent and being in direct contact with the sensor body in the shell. Because the sensor in the prior art needs to be electrically connected with external equipment in the use process, a first through groove is formed in the second plugging piece, a connector is arranged in the first through groove, the connector and the first through groove are in sealed connection through a second sealing piece, and the connector is used for being electrically connected with the sensor body, so that water is prevented from entering the inside of the shell through a gap between the connector and the first through groove and being in direct contact with the sensor body in the shell. To sum up, this induction type magnetic field sensor sets up the sensor body in by the casing, in the accommodation space that first shutoff piece and second shutoff piece formed, the sensor body passes through the connector and is connected with the external equipment electricity, thereby ensure that the sensor can normally work, seal up the gap of each junction through first seal assembly and first sealing member, can avoid sensor and water direct contact, thereby improved the waterproof performance of sensor, and then reduce the inefficacy that induction type magnetic field sensor takes place to intake and leads to in the use effectively.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an inductive magnetic field sensor according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a housing, a sensor body and a potting adhesive provided by an embodiment of the present invention;

fig. 3 is a schematic structural view of a first blocking element and a first sealing assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second blocking element, a first sealing assembly, a cable socket and a first sealing element according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a third plugging member, a second sealing member, a cable plug, a cable line and a third sealing member according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a fourth blocking member and a cable according to an embodiment of the present invention.

Icon: 100-a sensor; 10-a sensor body; 11-pouring sealant; 20-a housing; 21-a first interface; 211 — a first annular groove; 22-a second interface; 221-a second annular groove; 30-a first closure; 31-a first cover plate; 32-a first link; 33-blind holes; 40-a second closure; 41-a second cover plate; 42-a second link; 43-a first through slot; 431-a first groove; 432-a second groove; 50-a first seal assembly; 51-a gasket; 52-sealing ring; 60-a connector; 61-a cable socket; 62-a cable plug; 63-cable lines; 64-a first seal; 70-a third closure; 71-a third cover plate; 72-a third link; 73-a second seal; 74-a second through groove; 741-third groove; 742-a communication groove; 743-fourth recess; 80-a fourth closure; 81-a fourth cover plate; 82-a fourth link; 83-a third seal; 84-third through groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1 and fig. 2, the present embodiment provides an inductive magnetic field sensor (hereinafter referred to as a sensor 100) including a housing 20 and a sensor body 10 disposed in the housing 20, where the housing 20 has a first interface 21 and a second interface 22, the first interface 21 and the second interface 22 are respectively provided with a first plugging piece 30 and a second plugging piece 40, the first interface 21 and the first plugging piece 30 and the second interface 22 and the second plugging piece 40 are respectively connected by a first sealing piece 64 in a sealing manner, the second plugging piece 40 is provided with a first through groove 43, the first through groove 43 is provided with a connector 60, the connector 60 and the first through groove 43 are connected by a second sealing piece 73 in a sealing manner, and the connector 60 is used for electrically connecting with the sensor body 10. The inductive magnetic field sensor 100 can effectively reduce the failure of the inductive magnetic field sensor 100 caused by water inflow in the using process.

First, in order to improve the waterproof performance of the sensor 100, in the embodiment, a waterproof component such as the housing 20 is added to accommodate the sensor body 10 in the housing 20, so that the sensor 100 is prevented from directly contacting water during use by the waterproof component such as the housing 20. Because the sensor in the prior art is a rod-shaped structure, in this embodiment, the housing 20 is a hollow cylinder structure, so that the internal and external shape structures can be mutually adapted to the shape structure of the sensor body 10, thereby avoiding the influence of the addition of waterproof components such as the housing 20 on the use of the sensor body 10. Of course, in other embodiments, the housing 20 may also be in other shapes such as a hollow rectangular parallelepiped structure, and its interior only needs to be provided with a cylindrical accommodating cavity, so that its interior shape can be matched with the shape of the sensor body 10, and its exterior shape can be free from the constraint of the shape of the sensor body 10.

Secondly, in order to make the sensor body 10 easily accommodated in the housing 20, in the embodiment, the housing 20 has a first interface 21 and a second interface 22, and the first interface 21 and the second interface 22 may be located at two ends of the housing 20, that is, two ends of the housing 20 have openings, which are the first interface 21 and the second interface 22 respectively, so that the sensor body 10 can be placed inside the housing 20 through the first interface 21 or the second interface 22. The first sealing element 30 and the second sealing element 40 are respectively additionally arranged on the first interface 21 and the second interface 22 to seal the opening of the shell 20, and further, the first interface 21 and the first sealing element 30 and the second interface 22 and the second sealing element 40 are respectively in sealing connection through the first sealing assembly 50, so that water is prevented from entering the shell 20 to the greatest extent through a gap between the first interface 21 and the first sealing element 30 and/or a gap between the second interface 22 and the second sealing element 40 and directly contacting the sensor body 10 in the shell 20. Of course, in other embodiments, the housing 20 and the first blocking piece 30 may be directly designed as an integrally formed structure, and only the second port 22 is reserved so that the sensor body 10 can be accommodated in the housing 20 through the second port 22 and can be electrically connected to the connector 60 through the second port 22.

Third, since the sensor in the prior art needs to be electrically connected to an external device during use, in the present embodiment, the first through groove 43 is provided in the second blocking piece 40, the connector 60 is provided in the first through groove 43, and the connector 60 is electrically connected to the sensor body 10. In order to prevent water from entering the housing 20 through the gap between the connector 60 and the first through groove 43 and coming into direct contact with the sensor body 10 in the housing 20, the connector 60 and the first through groove 43 are sealingly connected by the first seal 64.

As described above, the inductive magnetic field sensor 100 includes the housing 20 and the sensor body 10 disposed in the housing 20, so that the sensor body 10 is accommodated in the housing 20, and the sensor 100 is prevented from directly contacting water during use by a waterproof component such as the housing 20. In order to facilitate the accommodation of the sensor body 10 in the housing 20, the housing 20 has a first port 21 and a second port 22, so that the sensor body 10 can be placed inside the housing 20 through the first port 21 or the second port 22. The opening of the housing 20 is sealed by the first sealing piece 30 and the second sealing piece 40 respectively arranged on the first interface 21 and the second interface 22, and the first interface 21 and the first sealing piece 30 and the second interface 22 and the second sealing piece 40 are respectively in sealing connection through the first sealing piece 64, so that water is prevented from entering the interior of the housing 20 to the greatest extent and being in direct contact with the sensor body 10 in the housing 20 through a gap between the first interface 21 and the first sealing piece 30 and/or a gap between the second interface 22 and the second sealing piece 40. Since the sensor in the prior art needs to be electrically connected to an external device during use, a first through groove 43 is formed in the second blocking piece 40, a connector 60 is disposed in the first through groove 43, the connector 60 and the first through groove 43 are hermetically connected by a second sealing piece 73, and the connector 60 is used for electrically connecting to the sensor body 10, so as to prevent water from entering the inside of the housing 20 through a gap between the connector 60 and the first through groove 43 and directly contacting the sensor body 10 in the housing 20. In conclusion, this induction type magnetic field sensor 100 sets up sensor body 10 in the accommodation space that is formed by casing 20, first shutoff piece 30 and second shutoff piece 40, and sensor body 10 is connected with the external equipment electricity through connector 60 to ensure that sensor 100 can normally work, seal the gap of each junction through first seal assembly 50 and first sealing member 64, can avoid sensor 100 and water direct contact, thereby improved sensor 100's waterproof performance, and then reduce induction type magnetic field sensor 100 effectively and take place the inefficacy that the water leads to in the use.

Specifically, referring to fig. 3 and fig. 4 in combination, in the present embodiment, the first blocking element 30 includes a first cover plate 31 and a first connecting rod 32 connected to the first cover plate 31, the second blocking element 40 includes a second cover plate 41 and a second connecting rod 42 connected to the second cover plate 41, outer wall surfaces of the first connecting rod 32 and the second connecting rod 42 are respectively in threaded connection with inner wall surfaces of the first port 21 and the second port 22, a first annular groove 211 and a second annular groove 221 are respectively disposed in the first port 21 and the second port 22, the first sealing assembly 50 includes a sealing gasket 51 and a sealing ring 52, the two sealing gaskets 51 are respectively disposed between an end surface of the first cover plate 31 close to the first port 21 and an end surface of the first port 21 close to the first cover plate 31, and between an end surface of the second cover plate 41 close to the second port 22 and an end surface of the second port 22 close to the second cover plate 41, and the two sealing rings 52 are respectively disposed between the first connecting rod 32 and the first annular groove 211, and the second connecting rod 42 and the second annular groove 211, and the Between the grooves 221.

The gasket 51 and the gasket 52 are provided at the same time, so that a double sealing effect is achieved, and the gap at each joint can be sealed tightly to the maximum extent. The gasket 51 and the gasket 52 may be made of rubber.

Further, in order to avoid the sealing rings 52 from moving or tilting along the rod bodies of the first link 32 and the second link 42 during the process of the threaded connection between the first link 32 and the first port 21 and the threaded connection between the second link 42 and the second port 22 to affect the sealing effect, a first receiving groove and a second receiving groove may be respectively formed in the first link 32 and the second link 42, and the two sealing rings 52 are respectively received in the first receiving groove and the second receiving groove.

As shown in fig. 1 and 3, in the present embodiment, a blind hole 33 is provided in the first blocking piece 30, so that the weight of the first blocking piece 30 can be reduced, and the excessive weight of the sensor 100 is avoided after adding waterproof components such as the housing 20, the first blocking piece 30, and the second blocking piece 40.

When the sealing gasket 51 and/or the sealing ring 52 are worn due to long usage time or damaged by erosion of seawater or the like, the sealing effect may be affected, and water may enter the inside of the housing 20, thereby causing failure of the sensor 100. In order to avoid such situations, as shown in fig. 1 and fig. 2, in this embodiment, a potting adhesive 11 is further disposed between the sensor body 10 and the first interface 21 and between the sensor body 10 and the second interface 22, respectively, so as to achieve a third layer of sealing protection effect, and further improve the waterproof performance of the sensor 100.

As shown in fig. 1 and 4, in the present embodiment, the first through groove 43 includes a first groove 431 and a second groove 432 sequentially communicating from an end close to the housing 20 to an end far from the housing 20, an inner diameter of the first groove 431 is smaller than an inner diameter of the second groove 432 to match with a shape structure of the connector 60, so that an end of the connector 60 can be inserted into the first groove 431 to be fixed, and the first sealing member 64 is disposed between the connector 60 and the first groove 431. The first sealing member 64 may be a sealing ring.

Referring to fig. 5 and fig. 6, in the present embodiment, the connector 60 includes a cable socket 61, a cable plug 62 and a cable 63 electrically connected in sequence, one end of the cable socket 61 extends into the first groove 431 for fixing, the first sealing member 64 is disposed between the cable socket 61 and the first groove 431, and the cable socket 61 is used for electrically connecting with the sensor body 10. Preferably, the length of the cable 63 may be designed to be 1m or more, so as to be as far away from the sensor body 10 as possible, and to avoid water entering the housing 20 through the cable 63 from directly contacting the sensor body 10.

As shown in fig. 1, 5 and 6, in this embodiment, the inductive magnetic field sensor 100 further includes a third blocking member 70 and a fourth blocking member 80, the third blocking member 70 extends into the second groove 432 to be fixed, the third blocking member 70 and the second groove 432 are hermetically connected through a second sealing member 73, a second through groove 74 is provided in the third blocking member 70, the fourth blocking member 80 extends into the second through groove 74 to be fixed, the fourth blocking member 80 and the second groove 74 are hermetically connected through a third sealing member 83, a third through groove 84 is provided in the fourth blocking member 80, and the cable sequentially passes through the second through groove 74 and the third through groove 84 and extends out of the fourth blocking member 80. The second sealing member 73 may be a sealing gasket, and the third sealing member 83 may be a sealing ring.

Specifically, as shown in fig. 5, in the present embodiment, the third blocking piece 70 includes a third cover plate 71 and a third connecting rod 72 connected to the third cover plate 71, the third connecting rod 72 is screwed to the second groove 432, and the second sealing member 73 is disposed between an end surface of the third cover plate 71 close to the second blocking piece 40 and an end surface of the second blocking piece 40 close to the third cover plate 71.

It should be noted that, firstly, the diameters of the joints of the first blocking element 30 and the first interface 21 through the first sealing assembly 50 (specifically, the sealing gasket 51), the joints of the second blocking element 40 and the second interface 22 through the first sealing assembly 50 (specifically, the sealing gasket 51), and the joints of the third blocking element 70 and the second groove 432 through the second sealing element 73 (specifically, the sealing gasket) are consistent, so that the consistency of the appearance of the sensor 100 can be ensured.

Secondly, in the present embodiment, the outer diameter of the third cover plate 71 is gradually reduced from the end close to the housing 20 to the end far from the housing 20, on one hand, because only the cable 63 extends out of the fourth blocking member 80 through the third through groove 84, and the diameter of the cable 63 itself is small, on the other hand, in order to avoid water entering the housing 20 through the third through groove 84, the inner diameter of the third through groove 84 also needs to be as small as possible, and if the size of the third blocking member 70 is designed to be gradually reduced, the size design of the fourth blocking member 80 can be facilitated to be small (the whole structure is shaped like a mechanical pencil, and the cable 63 is equivalent to a pencil lead), and the overall weight of the sensor 100 is prevented from being too heavy. The inner diameter of the third through groove 84 and the outer diameter of the cable 63 should be as close as possible to each other, so that the cable 63 can extend out of the fourth blocking member 80 through the third through groove 84, the size of the gap between the cable 63 and the third through groove 84 can be reduced as much as possible, and water can be prevented from entering the housing 20 through the gap between the cable 63 and the third through groove 84 as much as possible.

Specifically, as shown in fig. 6, in the present embodiment, the second through groove 74 includes a third groove 741, a communication groove 742, and a fourth groove 743 that sequentially communicate from an end close to the second blocking piece 40 toward an end away from the second blocking piece 40, inner diameters of the third groove 741, the fourth groove 743, and the communication groove 742 sequentially decrease, the fourth blocking piece 80 includes a fourth cover plate 81 and a fourth link 82 connected to the fourth cover plate 81, the fourth link 82 is screwed to the fourth groove 743, and the third seal 83 is provided in an end surface close to the communication groove 742 in the fourth groove 743.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an induction type magnetic field sensor, its characterized in that, including the casing and set up in sensor body in the casing, the casing has first interface and second interface, first interface with the second interface is provided with first shutoff piece and second shutoff piece respectively, first interface with between the first shutoff piece and the second interface with between the second shutoff piece respectively through first seal assembly sealing connection, be provided with first through-groove in the second shutoff piece, be provided with the connector in the first through-groove, the connector with first through-groove is through first sealing member sealing connection, the connector be used for with sensor body electricity is connected.

2. The inductive magnetic field sensor according to claim 1, wherein the first blocking element includes a first cover plate and a first connecting rod connected to the first cover plate, the second blocking element includes a second cover plate and a second connecting rod connected to the second cover plate, the first connecting rod and the second connecting rod are respectively in threaded connection with the first interface and the second interface, a first annular groove and a second annular groove are respectively arranged in the first interface and the second interface, the first sealing assembly includes a sealing gasket and a sealing ring, the two sealing gaskets are respectively arranged between an end surface of the first cover plate close to the first interface and an end surface of the first interface close to the first cover plate and between an end surface of the second cover plate close to the second interface and an end surface of the second interface close to the second cover plate, the two sealing rings are respectively arranged between the first connecting rod and the first annular groove and between the second connecting rod and the second annular groove.

3. The inductive magnetic field sensor of claim 2, wherein the first connecting rod and the second connecting rod are respectively provided with a first receiving groove and a second receiving groove, and the two sealing rings are respectively received in the first receiving groove and the second receiving groove.

4. An inductive magnetic field sensor according to claim 1, wherein a blind hole is provided in the first blocking member.

5. The inductive magnetic field sensor of claim 1, wherein a potting adhesive is further disposed between the sensor body and the first interface and between the sensor body and the second interface, respectively.

6. The inductive magnetic field sensor of claim 1, wherein the first through-slot comprises a first groove and a second groove which are sequentially communicated from an end close to the housing to an end far away from the housing, the inner diameter of the first groove is smaller than that of the second groove, one end of the connector extends into the first groove to be fixed, and the first sealing element is disposed between the connector and the first groove.

7. The inductive magnetic field sensor of claim 6, wherein the connector comprises a cable socket, a cable plug and a cable line, which are electrically connected in sequence, one end of the cable socket extends into the first groove for fixing, the first sealing element is disposed between the cable socket and the first groove, and the cable socket is used for electrically connecting with the sensor body.

8. The inductive magnetic field sensor according to claim 7, further comprising a third blocking piece and a fourth blocking piece, wherein the third blocking piece extends into the second groove and is fixed, the third blocking piece and the second groove are hermetically connected through a second sealing piece, a second through groove is formed in the third blocking piece, the fourth blocking piece extends into the second through groove and is fixed, the fourth blocking piece and the second through groove are hermetically connected through a third sealing piece, a third through groove is formed in the fourth blocking piece, and the cable sequentially passes through the second through groove and the third through groove and extends out of the fourth blocking piece.

9. The inductive magnetic field sensor of claim 8, wherein the third closure member comprises a third cover plate and a third connecting rod connected to the third cover plate, the third connecting rod is threadedly connected to the second groove, and the second seal is disposed between an end face of the third cover plate adjacent to the second closure member and an end face of the second closure member adjacent to the third cover plate.

10. The inductive magnetic field sensor according to claim 8, wherein the second through groove includes a third groove, a communicating groove, and a fourth groove that sequentially communicate from an end close to the second blocking member toward an end away from the second blocking member, inner diameters of the third groove, the fourth groove, and the communicating groove sequentially decrease, the fourth blocking member includes a fourth cover plate and a fourth link connected to the fourth cover plate, the fourth link is in threaded connection with the fourth groove, and the third sealing member is disposed in the fourth groove near an end face of the communicating groove.

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