CN220959972U - Linear displacement sensor with overload protection - Google Patents

Abstract

The utility model discloses a linear displacement sensor with overload protection, which belongs to the technical field of linear displacement sensors and comprises a sensor body and a chute, wherein the surface of the sensor body is embedded with the chute, the inside of the chute is provided with a first spring, the first spring is fixedly connected with the chute, the first spring is provided with a plurality of springs, the top of the first spring is provided with a top plate, the top of the top plate is provided with a sliding block, the sliding block is slidably connected with the chute, the top of the sliding block is provided with a sliding sheet, the sliding sheet is fixedly connected with the sliding block, the middle part of the sensor body is provided with a second spring, the second spring is fixedly connected with the sensor body, one end of the second spring is provided with a buffer plate, and the sliding chute, the first spring, the top plate and the sliding block are arranged, so that the sliding sheet can be better contacted with a conductive sheet, the phenomenon of breaking contact is not easy to occur, and the accuracy of a detection result is effectively improved.

Description

Linear displacement sensor with overload protection

Technical Field

The utility model belongs to the technical field of linear displacement sensors, and particularly relates to a linear displacement sensor with overload protection.

Background

The linear displacement sensor has the function of converting the linear mechanical displacement into an electrical signal. To achieve this effect, a variable resistance rail is typically positioned at a fixed location of the sensor, and different resistance values are measured by displacement of the slide on the rail. The sensor slide rail is connected with steady-state direct-current voltage, small current of microamperes is allowed to flow, and the voltage between the slide and the starting end is proportional to the moving length of the slide. The sensor is used as a voltage divider, so that the requirement on the accuracy of the total resistance of the sliding rail can be reduced to the greatest extent, and the resistance change caused by the temperature change does not influence the measurement result, so that the application field comprises aerospace, petrochemical industry, energy power, automobile electronics, weaponry, engine stroke measurement control and the like, and the sensor is a relatively common sensor in the market at present and can basically meet the current use requirement.

The existing linear displacement sensor with overload protection has the defects that most of linear displacement sensors are poor in stability, a sliding sheet is possibly loose after being used for a long time, so that the linear displacement sensor cannot be well contacted with a conducting strip, the accuracy of detection results is reduced, and the linear displacement sensor with the overload protection is provided.

Disclosure of utility model

The utility model aims to provide a linear displacement sensor with overload protection, which solves the problems that most of the background technologies are poor in stability and influence on detection results.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a linear displacement sensor with overload protection, includes sensor body and spout, the surface of sensor body inlays and is equipped with the spout, the inside of spout is equipped with first spring, first spring and spout fixed connection, first spring is equipped with a plurality ofly, the top of first spring is equipped with the roof, the top of roof is equipped with the slider, slider and spout sliding connection, the top of slider is equipped with the gleitbretter, gleitbretter and slider fixed connection, the middle part of sensor body is equipped with the second spring, second spring and sensor body fixed connection, the one end of second spring is equipped with the buffer board.

Preferably, a fixed block is arranged on one side of the sensor body, the fixed block is fixedly connected with the sensor body, and a reinforcing rod is arranged in the middle of the fixed block.

Preferably, a guide rod is arranged on the inner side of the sensor body, the sliding sheet is in sliding connection with the guide rod, and a fixing plate is arranged at one end of the sensor body.

Preferably, the top of gleitbretter is equipped with the mounting groove, the inside of mounting groove is equipped with the connecting block, connecting block and mounting groove rotate to be connected.

Preferably, a power interface is arranged on one side of the connecting block, and a socket is arranged at one end of the sensor body.

Preferably, one side of the sensor body is provided with four mounting blocks, and the four mounting blocks are respectively positioned at four corners of the bottom of the sensor body.

Compared with the prior art, the utility model has the beneficial effects that:

1. Through spout, first spring, roof and the slider that are equipped with, improved the stability of gleitbretter when sliding, make it can be better with the conducting strip contact, be difficult for appearing the phenomenon of breaking touch, the effectual accuracy that improves testing result has solved current linear displacement sensor that has overload protection still has partial defect, most stability is relatively poor, the gleitbretter live time has for a long time, the phenomenon of becoming flexible can appear to lead to its can not fine and the conducting strip contact, reduced the problem of testing result's accuracy.

2. Through buffer board and the second spring that are equipped with, can play the effect of buffering to the gleitbretter, avoid the gleitbretter direct impact at the inner wall of sensor body, cause the damage, improved the life of gleitbretter.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

Fig. 3 is a schematic plan view of the present utility model.

In the figure: 1. a sensor body; 2. a chute; 3. a first spring; 4. a top plate; 5. a slide block; 6. a sliding sheet; 7. a buffer plate; 8. a second spring; 9. a fixed block; 10. a reinforcing rod; 11. a guide rod; 12. a fixing plate; 13. a mounting groove; 14. a connecting block; 15. a power interface; 16. a socket; 17. and (5) installing a block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a linear displacement sensor with overload protection, including sensor body 1 and spout 2, the surface of sensor body 1 is inlayed and is equipped with spout 2, the inside of spout 2 is equipped with first spring 3, first spring 3 and spout 2 fixed connection, first spring 3 is equipped with a plurality ofly, the top of first spring 3 is equipped with roof 4, the top of roof 4 is equipped with slider 5, slider 5 and spout 2 sliding connection, the top of slider 5 is equipped with gleitbretter 6, gleitbretter 6 and slider 5 fixed connection, the middle part of sensor body 1 is equipped with second spring 8, second spring 8 and sensor body 1 fixed connection, the one end of second spring 8 is equipped with buffer board 7.

In this embodiment, when the slider 5 drives the slide 6 when the surface of sensor body 1 slides in using this linear displacement sensor with overload protection, at this moment, slider 5 can extrude roof 4, and then compress first spring 3, slide 6 is at gliding in-process, roof 4 can hug closely slider 5 under the reaction force of first spring 3, thereby make its inseparabler of contact, difficult the phenomenon of becoming flexible appears, through buffer board 7 and the second spring 8 that are equipped with, can play the effect of buffering to slide 6, avoid slide 6 direct impact at the inner wall of sensor body 1, cause the damage, the life of slide 6 has been improved.

Specifically, one side of sensor body 1 is equipped with fixed block 9, fixed block 9 and sensor body 1 fixed connection, the middle part of fixed block 9 is equipped with stiffener 10, the inboard of sensor body 1 is equipped with guide bar 11, gleitbretter 6 and guide bar 11 sliding connection, the one end of sensor body 1 is equipped with fixed plate 12, the top of gleitbretter 6 is equipped with mounting groove 13, the inside of mounting groove 13 is equipped with connecting block 14, connecting block 14 and mounting groove 13 rotate to be connected, one side of connecting block 14 is equipped with power interface 15, the one end of sensor body 1 is equipped with socket 16, one side of sensor body 1 is equipped with installation piece 17, installation piece 17 is equipped with four altogether, be located four corners of sensor body 1 bottom respectively.

In this embodiment, through fixed block 9 and stiffener 10 that are equipped with, improved the stability of this sensor body 1, make it be difficult for appearing the phenomenon of fracture damage, through the guide bar 11 that is equipped with, improved the stability of gleitbretter 6, make it be difficult for appearing the phenomenon of skew at gliding in-process, through mounting groove 13 that is equipped with, connecting block 14 and power source interface 15, realized carrying out the function of circular telegram to gleitbretter 6, thereby detect the removal distance, through the installation piece 17 that is equipped with, the installation for this sensor body 1 is convenient.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a linear displacement sensor with overload protection, includes sensor body (1) and spout (2), its characterized in that: the sensor is characterized in that a sliding chute (2) is embedded in the surface of the sensor body (1), a first spring (3) is arranged in the sliding chute (2), the first spring (3) and the sliding chute (2) are fixedly connected, a plurality of springs are arranged on the first spring (3), a top plate (4) is arranged on the top of the first spring (3), a sliding block (5) is arranged on the top of the top plate (4), the sliding block (5) and the sliding chute (2) are in sliding connection, a sliding vane (6) is arranged on the top of the sliding block (5), the sliding vane (6) and the sliding block (5) are fixedly connected, a second spring (8) is arranged in the middle of the sensor body (1), and a buffer plate (7) is arranged at one end of the second spring (8).

2. A linear displacement sensor with overload protection according to claim 1, wherein: one side of the sensor body (1) is provided with a fixed block (9), the fixed block (9) is fixedly connected with the sensor body (1), and the middle part of the fixed block (9) is provided with a reinforcing rod (10).

3. A linear displacement sensor with overload protection according to claim 1, wherein: the sensor is characterized in that a guide rod (11) is arranged on the inner side of the sensor body (1), the sliding sheet (6) is in sliding connection with the guide rod (11), and a fixing plate (12) is arranged at one end of the sensor body (1).

4. A linear displacement sensor with overload protection according to claim 1, wherein: the top of gleitbretter (6) is equipped with mounting groove (13), the inside of mounting groove (13) is equipped with connecting block (14), connecting block (14) and mounting groove (13) rotate and connect.

5. A linear displacement sensor with overload protection as claimed in claim 4, wherein: one side of the connecting block (14) is provided with a power interface (15), and one end of the sensor body (1) is provided with a socket (16).

6. A linear displacement sensor with overload protection according to claim 1, wherein: one side of the sensor body (1) is provided with mounting blocks (17), and the four mounting blocks (17) are arranged at four corners of the bottom of the sensor body (1) respectively.