CN218179906U

CN218179906U - Waterproof mechanism of displacement sensor

Info

Publication number: CN218179906U
Application number: CN202222510613.2U
Authority: CN
Inventors: 李�杰
Original assignee: Luoyang Heyuan Control System Co ltd
Current assignee: Luoyang Heyuan Control System Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2022-12-30
Anticipated expiration: 2032-09-22

Abstract

The utility model belongs to the technical field of the sensor, concretely relates to displacement sensor waterproofing mechanism, including linear displacement sensor, linear displacement sensor's one end fixedly connected with is used for transmitting the cable of the signal of telecommunication, linear displacement sensor's lateral wall is installed and is used for adjusting linear displacement sensor internal and external pressure balance's atmospheric pressure regulation hose body, sealed person in charge outside edge is fixed and is provided with the sealing tube, the inner wall both sides of sealing tube are all fixed and are provided with the swivel mount, just the swivel mount end is all rotated and is connected with the baffle, the equal fixedly connected with elastic catch in inner wall both sides of sealing tube. The utility model discloses can utilize the pressure balance process to realize that the sensor is sealed, avoid the problem that the sensor intake under humid environment, avoid the sensor under humid environment because the on-the-spot humid air of negative pressure absorption, prolong sensor life, still can avoid the negative pressure to make the inner wall that runs through the body and sealed the person in charge to peel off.

Description

Waterproof mechanism of displacement sensor

Technical Field

The utility model belongs to the technical field of the sensor, concretely relates to displacement sensor waterproofing mechanism.

Background

The linear sensor is a linear device belonging to metal induction, the sensor is used for converting various measured physical quantities into electric quantity, in the production process, the displacement measurement is generally divided into measurement of physical size and mechanical displacement, and the displacement sensor can be divided into an analog type and a digital type according to the different conversion forms of the measured variables.

The problems existing in the prior art are as follows:

in the use of current linear sensor, according to its work is specific, the inside atmospheric pressure of equipment can constantly change, and when inside be the negative pressure, the moisture in the outside air has just had the trend that gets into in the equipment, wherein, the junction of cable and sensor equipment probably produces the gap of moisture infiltration, then under the effect of the inside negative pressure of equipment, the moisture can get into inside the equipment, this sensor of long-time use, the short circuit appears in the easy messenger internal circuit component to seriously shorten the life of equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a displacement sensor waterproofing mechanism can utilize the pressure balance process to realize that the sensor is sealed, has avoided the problem that the sensor intake under humid environment, has avoided the sensor under humid environment because the moist air at negative pressure absorption scene has prolonged sensor life.

The utility model discloses the technical scheme who takes specifically as follows:

the displacement sensor waterproof mechanism comprises a linear displacement sensor, wherein one end of the linear displacement sensor is fixedly connected with a cable for transmitting an electric signal, and the cable penetrates through the side wall of the linear displacement sensor;

an air pressure adjusting flexible pipe body for adjusting the balance of the internal pressure and the external pressure of the linear displacement sensor is arranged on the side wall of the linear displacement sensor, and the air pressure adjusting flexible pipe body is arranged on the outer surface of the cable;

the atmospheric pressure is adjusted the hose body and is in including setting up the outer body of linear displacement sensor outer wall, the outside of outer body is fixed and is provided with extension gasbag pipe, outer body with extension gasbag pipe formula structure as an organic whole and both inside communicate with each other, atmospheric pressure is adjusted the hose body still including setting up the interior gasbag pipe of linear displacement sensor inner wall, outer body with through running through between the interior gasbag pipe the body that runs through of linear displacement sensor lateral wall is connected.

The lateral wall of the linear displacement sensor is fixedly provided with a sealing main pipe on the outer surface of the cable, and the inner wall of the sealing main pipe is in sealing fit with the outer wall of the cable.

The penetration pipe body also penetrates through the sealing main pipe, and the outer wall of the penetration pipe body is in sealing fit with the inner wall of the sealing main pipe.

The inner part of the outer tube body is communicated with the inner part of the inner air bag tube through the air duct.

And sealing auxiliary pipes are fixedly arranged on the inner wall and the outer wall of the linear displacement sensor, and are hermetically attached to the outer surface of the cable.

The fixed sealing pipe that is provided with in sealed person in charge outside edge, the inner wall both sides of sealing pipe are all fixed and are provided with the swivel mount, just the swivel mount end all rotates and is connected with the baffle, the baffle with the quantity that runs through the body is the same and the position is corresponding.

The sealing tube is characterized in that elastic separation blades are fixedly connected to two sides of the inner wall of the sealing tube, the tail ends of the elastic separation blades are in contact with the baffle, and the elastic separation blades are in a compressed state.

The utility model discloses the technological effect who gains does:

(1) The utility model discloses, when the inside of linear displacement sensor is the negative pressure, the gas in outer body and extension gasbag pipe can enter the inside of interior gasbag pipe through the air vent, and when the inside of linear displacement sensor is the positive pressure, the air in interior gasbag pipe can enter outer body and extension gasbag pipe to this atmospheric pressure inside and outside balancing sensor; the pressure balance process is applied to sealing of the sensor, the problem that the sensor enters water in a humid environment is avoided, the sealed hose is used for replacing a common cable hose and is connected into the sensor shell, the sealed hose not only becomes a cable pipe for power supply of the sensor, but also becomes a pipeline for balancing the pressure inside and outside the sensor, the situation that the sensor in the humid environment absorbs humid air on the site due to negative pressure is avoided, and the service life of the sensor is prolonged.

(2) The utility model discloses, when outer body and extension gasbag pipe shrink, both will produce deformation simultaneously, meanwhile, the elasticity separation blade under the compression state can make the baffle rotatory, baffle after the rotation can extrude outer body and cover the one end that runs through the body thereupon, can avoid moisture from running through the body and sealing the infiltration between being responsible for this moment, avoid the negative pressure to make the inner wall that runs through the body and sealing the person in charge peel off, and then lead to the possibility of moisture infiltration, further improve the water-proof effects of atmospheric pressure regulation hose body.

Drawings

Fig. 1 is a front perspective view of a linear displacement sensor according to an embodiment of the present invention;

fig. 2 is a sectional view of the air pressure adjusting hose body according to the embodiment of the present invention;

fig. 3 is a partially enlarged schematic view at a in fig. 2.

In the drawings, the reference numbers indicate the following list of parts:

1. a linear displacement sensor; 2. a cable; 3. an air pressure adjusting hose body; 301. an outer tube body; 302. an expanding balloon tube; 303. an inner balloon tube; 304. penetrates through the tube body; 305. an air duct; 4. sealing the main pipe; 5. sealing the secondary pipe; 6. sealing the tube; 601. rotating a base; 602. a baffle plate; 603. an elastic baffle plate.

Detailed Description

In order to make the objects and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention, and is not intended to strictly limit the scope of the claims.

As shown in fig. 1 and 2, displacement sensor waterproofing mechanism, including linear displacement sensor 1, linear displacement sensor 1's one end fixedly connected with is used for transmitting the cable 2 of the signal of telecommunication, and cable 2 runs through linear displacement sensor 1's lateral wall, and linear displacement sensor 1's lateral wall is and the fixed surface who is located cable 2 installs sealed being responsible for 4, is sealed laminating between the inner wall of being responsible for 4 and the outer wall of cable 2.

Referring to fig. 2, an air pressure adjusting hose 3 for adjusting the balance of internal and external pressures of the linear displacement sensor 1 is installed on the side wall of the linear displacement sensor 1, the air pressure adjusting hose 3 is disposed on the outer surface of the cable 2, the air pressure adjusting hose 3 includes an outer hose 301 disposed on the outer wall of the linear displacement sensor 1, an extended air bag tube 302 is fixedly disposed on the outer side of the outer hose 301, the outer hose 301 and the extended air bag tube 302 are of an integral structure and are communicated with each other inside, the air pressure adjusting hose 3 further includes an inner air bag tube 303 disposed on the inner wall of the linear displacement sensor 1, and the outer hose 301 and the inner air bag tube 303 are connected through a penetrating hose body 304 penetrating through the side wall of the linear displacement sensor 1.

Referring to fig. 2, the penetrating pipe body 304 also penetrates the main sealing pipe 4, the outer wall of the penetrating pipe body 304 is in sealing contact with the inner wall of the main sealing pipe 4, air ducts 305 are formed inside the penetrating pipe body 304, and the inside of the outer pipe body 301 is connected to the inside of the inner balloon pipe 303 through the air ducts 305.

According to the above structure, when the inside of the linear displacement sensor 1 is negative pressure, the gas inside the outer tube 301 and the expanded air bag tube 302 can enter the inside of the inner air bag tube 303 through the air duct 305, the inner air bag tube 303 can expand by means of the elasticity of itself, when the inside of the linear displacement sensor 1 is positive pressure, the air inside the inner air bag tube 303 can enter the outside tube 301 and the expanded air bag tube 302, and the expanded air bag tube 302 can expand correspondingly by means of the elasticity of itself, so as to balance the air pressure inside and outside the sensor.

Referring to the attached drawing 2, the inner wall and the outer wall of the linear displacement sensor 1 are both fixedly provided with auxiliary sealing pipes 5, and the auxiliary sealing pipes 5 are both hermetically attached to the outer surface of the cable 2.

Referring to fig. 2 and fig. 3, the sealing tube 6 is fixedly disposed on the outer edge of the main sealing tube 4, the rotation bases 601 are fixedly disposed on both sides of the inner wall of the sealing tube 6, the ends of the rotation bases 601 are rotatably connected with the baffles 602, the baffles 602 are the same as the tube bodies 304 in number and correspond to the tube bodies in position, the elastic blocking pieces 603 are fixedly connected on both sides of the inner wall of the sealing tube 6, the ends of the elastic blocking pieces 603 contact with the baffles 602, and the elastic blocking pieces 603 are in a compressed state.

According to the above structure, when the outer tube body 301 and the expanded air bag tube 302 are contracted, the elastic flap 603 under compression rotates the baffle 602, and the rotated baffle 602 presses the outer tube body 301 and covers one end of the through tube body 304, thereby preventing water from penetrating between the through tube body 304 and the main sealing tube 4.

The utility model discloses a theory of operation does: in the daily use process of the linear displacement sensor 1, the internal air pressure of the linear displacement sensor 1 changes when the sensor operates, when the internal part of the linear displacement sensor 1 is negative pressure, the air in the outer pipe 301 and the expanded air bag pipe 302 enters the internal part of the inner air bag pipe 303 through the air duct 305, the inner air bag pipe 303 can expand by means of the elasticity of the inner air bag pipe 303, when the outer pipe 301 and the expanded air bag pipe 302 are reduced, the outer pipe 301 and the expanded air bag pipe 302 are deformed simultaneously, meanwhile, the elastic baffle 603 in a compressed state can enable the baffle 602 to rotate, the baffle 602 after rotation can extrude the outer pipe 301 and cover one end of the penetrating pipe 304, at the moment, moisture can be prevented from permeating between the penetrating pipe 304 and the sealing main pipe 4, the situation that the inner wall of the penetrating pipe 304 and the sealing main pipe 4 is peeled by the negative pressure, the moisture permeating possibility is caused is avoided, and the waterproof effect of the air pressure adjusting hose body 3 is further improved;

when the interior of the linear displacement sensor 1 is positive pressure, the air in the inner air bag tube 303 can enter the outer tube 301 and the expansion air bag tube 302, and the expansion air bag tube 302 can correspondingly expand by virtue of the elasticity of the expansion air bag tube 302, so that the air pressure inside and outside the sensor is balanced; the pressure balance process is applied to sealing of the sensor, the problem that the sensor enters water in a humid environment is avoided, the sealed hose is used for replacing a common cable hose and is connected into the sensor shell, the sealed hose not only becomes a cable pipe for power supply of the sensor, but also becomes a pipeline for balancing the pressure inside and outside the sensor, the situation that the sensor in the humid environment absorbs humid air on the site due to negative pressure is avoided, and the service life of the sensor is prolonged.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.

Claims

1. Displacement sensor waterproofing mechanism, including linear displacement sensor (1), its characterized in that: one end of the linear displacement sensor (1) is fixedly connected with a cable (2) for transmitting an electric signal, and the cable (2) penetrates through the side wall of the linear displacement sensor (1);

an air pressure adjusting hose body (3) used for adjusting the balance of the internal pressure and the external pressure of the linear displacement sensor (1) is mounted on the side wall of the linear displacement sensor (1), and the air pressure adjusting hose body (3) is arranged on the outer surface of the cable (2);

atmospheric pressure regulation hose body (3) are including setting up outer body (301) of linear displacement sensor (1) outer wall, the fixed expansion gasbag pipe (302) that is provided with in the outside of outer body (301), outer body (301) with expansion gasbag pipe (302) formula structure as an organic whole and both inside communicate with each other, atmospheric pressure regulation hose body (3) are still including setting up interior gasbag pipe (303) of linear displacement sensor (1) inner wall, outer body (301) with through running through between interior gasbag pipe (303) body (304) that runs through of linear displacement sensor (1) lateral wall are connected.

2. The displacement sensor waterproofing mechanism according to claim 1, wherein: the lateral wall of linear displacement sensor (1) is and be located the surface fixed mounting of cable (2) has sealed person in charge (4), the inner wall of sealed person in charge (4) with be sealed the laminating between the outer wall of cable (2).

3. The displacement sensor waterproofing mechanism according to claim 2, wherein: the penetrating pipe body (304) also penetrates through the sealing main pipe (4), and the outer wall of the penetrating pipe body (304) is in sealing fit with the inner wall of the sealing main pipe (4).

4. The displacement sensor waterproofing mechanism according to claim 3, wherein: an air duct (305) is formed in the penetrating pipe body (304), and the inside of the outer pipe body (301) is communicated with the inside of the inner air bag pipe (303) through the air duct (305).

5. The displacement sensor waterproofing mechanism according to claim 1, wherein: the inner wall and the outer wall of the linear displacement sensor (1) are fixedly provided with auxiliary sealing pipes (5), and the auxiliary sealing pipes (5) are hermetically attached to the outer surface of the cable (2).

6. The displacement sensor waterproofing mechanism according to claim 3, wherein: sealed being responsible for (4) outside edge is fixed to be provided with seals pipe (6), the inner wall both sides that seal pipe (6) are all fixed to be provided with swivel mount (601), just the end of swivel mount (601) all rotates and is connected with baffle (602), baffle (602) with the quantity that runs through body (304) is the same and the position is corresponding.

7. The displacement sensor waterproofing mechanism according to claim 6, wherein: the sealing pipe is characterized in that elastic blocking pieces (603) are fixedly connected to two sides of the inner wall of the sealing pipe (6), the tail ends of the elastic blocking pieces (603) are in contact with the baffle (602), and the elastic blocking pieces (603) are in a compressed state.