CN217541823U - Surface type fiber grating strain sensor - Google Patents

Abstract

The utility model discloses a surface type fiber grating strain sensor, belonging to the technical field of strain sensors, comprising a sensor body, wherein both ends of the sensor body are provided with sensor fixing components; the fixed subassembly of sensor includes solid fixed ring in the right side, inserted block, buckle subassembly, the solid fixed ring in the left side, bolt hole and bottom plate, wherein, the both ends of sensor body are provided with the bottom plate, upper end one side of bottom plate is provided with solid fixed ring in the left side, the upper end opposite side of bottom plate is provided with solid fixed ring in the right side, solid fixed ring in the right side's upper end side is provided with the inserted block, the utility model discloses a set up the fixed subassembly of sensor, this subassembly can be convenient for fix the sensor body, through buckle structure's setting, can be convenient for fix solid fixed ring in the left side and the solid fixed ring in the right side, in addition, through having set up corresponding fixed pin of multiunit and spring one, can be convenient for adjust its different radius circular arcs of constituteing.

Description

Surface type fiber grating strain sensor

Technical Field

The utility model belongs to the technical field of strain transducer, concretely relates to surface type fiber grating strain transducer.

Background

A resistive strain gauge type sensor (strain gauge type transducer) is a resistive sensor having a resistive strain gauge as a conversion element. The resistance strain type sensor consists of an elastic sensitive element, a resistance strain gauge, a compensation resistor and a shell, and can be designed into various structural forms according to specific measurement requirements. The elastic sensing element is deformed by the measured force and deforms the resistive strain gauges attached thereto together. The resistance strain gauge converts the deformation into the change of resistance value, thereby measuring various physical quantities such as force, pressure, torque, displacement, acceleration, temperature and the like.

Chinese patent application No. 202120601358.5 discloses a surface type fiber grating strain sensor, two ends of the sensor are fixed on a mounting seat through bolts, and the fixing mode can damage the port of the strain sensor, so that the service life of the strain sensor is reduced; the mount pad that its set up can't be fixed the not strain sensor of equidimension, and can't play the cushioning effect to strain sensor after fixed.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a surface type fiber grating strain sensor has the fixed characteristics more convenient and can fix the sensor of equidimension not of sensor.

In order to achieve the above purpose, the utility model provides a following technical scheme: a surface type fiber grating strain sensor comprises a sensor body, wherein sensor fixing components are arranged at two ends of the sensor body; the sensor fixing assembly comprises a right fixing ring, an inserting block, a buckle assembly, a left fixing ring, bolt holes and a bottom plate, wherein the two ends of the sensor body are provided with the bottom plate, the left fixing ring is arranged on one side of the upper end of the bottom plate, the right fixing ring is arranged on the other side of the upper end of the bottom plate, the inserting block is arranged on the side edge of the upper end of the right fixing ring, the buckle assembly is arranged on the side edge of the inserting block, and the bolt holes are formed in the two ends of the bottom plate.

Preferably, the buckle assembly comprises a fixing hole, a fixing pin and a first spring, wherein the first spring is arranged inside the inserting block, the other end of the first spring is provided with the fixing pin, and the side edge of the upper end of the left fixing ring is provided with the fixing hole corresponding to the fixing pin.

Preferably, a plurality of groups of fixing pins and springs I are arranged inside the insertion block in an array manner.

Preferably, the lower end of the right fixing ring is provided with a sensor fixing size adjusting assembly; the fixed size adjusting part of sensor is including installation piece, arc, stopper and central rod, wherein, the solid fixed ring's in the right side lower extreme is provided with the installation piece, solid fixed ring and the solid fixed ring's in the left side run through and are provided with well core rod in the right side, well core rod's one end is provided with the stopper, well core rod's the other end is provided with the arc.

Preferably, the sensor fixing size adjusting assembly further comprises a sliding block and a sliding groove, wherein the sliding block is arranged on the side edge of the mounting block, and the sliding groove corresponding to the sliding block is formed in the bottom plate.

Preferably, a second spring is arranged on the surface of the center rod between the right fixing ring and the arc-shaped plate.

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

1. the utility model discloses a set up the fixed subassembly of sensor, this subassembly can be convenient for fix the sensor body, through buckle structure's setting, can be convenient for fix solid fixed ring in a left side and the solid fixed ring in a right side, in addition, through having set up corresponding fixed pin of multiunit and spring one, can be convenient for adjust the different radius circular arcs of its constitution.

2. The utility model discloses a set up the fixed size adjusting part of sensor, this subassembly can be convenient for adjust right side solid fixed ring, through having set up slider and spout, can promote the stability of its slip process, through having set up spring two, can play a cushioning effect to the fixed back of sensor body.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a perspective view of the sensor fixing assembly of the present invention;

fig. 3 is a cross-sectional view of the buckle assembly of the present invention;

FIG. 4 is a perspective view of the sensor fixing size adjusting assembly of the present invention;

in the figure: 1. a sensor body; 2. a sensor fixing assembly; 21. a right securing ring; 22. inserting a block; 23. a buckle assembly; 231. a fixing hole; 232. a fixing pin; 233. a first spring; 24. a left retaining ring; 25. bolt holes; 26. a base plate; 3. the sensor fixes the size adjusting component; 31. a slider; 32. mounting a block; 33. a chute; 34. an arc-shaped plate; 35. a second spring; 36. a limiting block; 37. a center rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present invention provides the following technical solutions: a surface type fiber grating strain sensor comprises a sensor body 1, wherein sensor fixing components 2 are arranged at two ends of the sensor body 1; sensor fixed component 2 includes the solid fixed ring in the right side 21, inserted block 22, buckle subassembly 23, the solid fixed ring in a left side 24, bolt hole 25 and bottom plate 26, wherein, sensor body 1's both ends are provided with bottom plate 26, upper end one side of bottom plate 26 is provided with the solid fixed ring in a left side 24, the upper end opposite side of bottom plate 26 is provided with the solid fixed ring in the right side 21, the solid fixed ring in the right side's 21 upper end side is provided with inserted block 22, the side of inserted block 22 is provided with buckle subassembly 23, the inside bolt hole 25 that is provided with in bottom plate 26's both ends.

Specifically, the buckle assembly 23 includes a fixing hole 231, a fixing pin 232 and a first spring 233, wherein the first spring 233 is disposed inside the insert 22, the fixing pin 232 is disposed at the other end of the first spring 233, the fixing hole 231 corresponding to the fixing pin 232 is disposed at the side edge of the upper end of the left fixing ring 24,

through adopting above-mentioned technical scheme, can be convenient for fix sensor body 1.

Specifically, a plurality of sets of fixing pins 232 and springs 233 are arranged inside the insert block 22,

by adopting the technical scheme, the arc formed by the left fixing ring 24 and the right fixing ring 21 can be conveniently fixed.

In the embodiment, when the sensor body 1 is used, two ends of the sensor body 1 are placed in the center of an arc formed by the left fixing ring 24 and the right fixing ring 21, the right fixing ring 21 is slid, the insert block 22 is inserted into the upper end of the left fixing ring 24, the fixing pin 232 is pressed at the same time, the fixing pin 232 compresses the first spring 233 and is embedded into the insert block 22, at this time, when the fixing pin 232 is aligned with the fixing hole 231, the first spring 233 rebounds to eject the fixing pin 232 into the fixing hole 231, but the sensor body 1 is not in a fixed state, at this time, the fixing pin 232 in the fixing hole 231 is pressed and is embedded into the insert block 22, and the fixing pin 232 ejects into the fixing hole 231 until the sensor body 1 is tightly fixed by the right fixing ring 21, so that the sensor body 1 can be fixed;

example 2

The present embodiment is different from embodiment 1 in that: the lower end of the right fixed ring 21 is provided with a sensor fixed size adjusting component 3; the sensor fixing size adjusting component 3 comprises a mounting block 32, an arc-shaped plate 34, a limiting block 36 and a central rod 37, wherein the mounting block 32 is arranged at the lower end of the right fixing ring 21, the central rod 37 is arranged at the side edges of the right fixing ring 21 and the left fixing ring 24 in a penetrating manner, the limiting block 36 is arranged at one end of the central rod 37, the arc-shaped plate 34 is arranged at the other end of the central rod 37,

through adopting above-mentioned technical scheme, can be convenient for fix the sensor body 1 of equidimension not.

Specifically, the sensor fixing size adjusting assembly 3 further comprises a sliding block 31 and a sliding groove 33, wherein the sliding block 31 is arranged on the side edge of the mounting block 32, the sliding groove 33 corresponding to the sliding block 31 is arranged inside the bottom plate 26,

by adopting the technical scheme, the stability of the sliding process of the mounting block 32 can be improved.

Specifically, a second spring 35 is arranged on the surface of the central rod 37 between the right fixed ring 21 and the arc-shaped plate 34,

by adopting the technical scheme, the buffer performance for the fixing process of the sensor body 1 can be realized.

This embodiment is when using, when fixed ring 21 in the right side slides in bottom plate 26 upper end, it slides to drive installation piece 32, installation piece 32 drives slider 31 and slides in spout 33, thereby promote the stability of the slip process of installation piece 32, when sensor body 1 at first pastes tightly with arc 34, continue to remove fixed ring 21 in the right side, well core rod 37 slides with fixed ring 21 relative in the right side this moment, two 35 of compression spring simultaneously, through the setting of two 35 of spring, can play a shock-absorbing capacity to the fixed process of sensor body 1, so as to fix sensor body 1 not of equidimension.

The utility model discloses a theory of operation and use flow: the utility model discloses when using, place the circular arc center that left solid fixed ring 24 and right solid fixed ring 21 constitute with the both ends of sensor body 1, slide right solid fixed ring 21, insert the inserted block 22 inside the upper end of left solid fixed ring 24 this moment, press fixed pin 232 simultaneously, fixed pin 232 compression spring 233 is and imbed the inside of inserted block 22, at this moment because fixed pin 232 aligns with fixed orifices 231, spring 233 kick-backs and pops fixed pin 232 into the inside of fixed orifices 231, but sensor body 1 is not in the stationary condition, press the fixed pin 232 inside fixed orifices 231 and imbed the inside of inserted block 22 this moment, until when right solid fixed ring 21 is fixed sensor body 1 tight, fixed pin 232 pops into fixed orifices 231 and can realize the fixed to sensor body 1; when the solid fixed ring 21 in the right side slides in bottom plate 26 upper end, it slides to drive installation piece 32, installation piece 32 drives slider 31 and slides in spout 33, thereby promote the stability of the slip process of installation piece 32, when sensor body 1 at first pastes tightly with arc 34, continue to remove solid fixed ring 21 in the right side, well core rod 37 and the solid fixed ring 21 relative slip in the right side this moment, two 35 of compression spring simultaneously, through the setting of two 35 of spring, can play a shock-absorbing capacity to the fixed process of sensor body 1, so as to fix the sensor body 1 of equidimension not.

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

Claims (6)

1. A surface type fiber grating strain sensor comprises a sensor body (1), and is characterized in that: sensor fixing components (2) are arranged at two ends of the sensor body (1);

sensor fixed subassembly (2) is including right side solid fixed ring (21), inserted block (22), buckle subassembly (23), left side solid fixed ring (24), bolt hole (25) and bottom plate (26), wherein, the both ends of sensor body (1) are provided with bottom plate (26), upper end one side of bottom plate (26) is provided with left solid fixed ring (24), the upper end opposite side of bottom plate (26) is provided with right side solid fixed ring (21), the upper end side of right side solid fixed ring (21) is provided with inserted block (22), the side of inserted block (22) is provided with buckle subassembly (23), the inside bolt hole (25) that is provided with in both ends of bottom plate (26).

2. A surface-mounted fiber grating strain sensor as recited in claim 1, wherein: the buckle assembly (23) comprises a fixing hole (231), a fixing pin (232) and a first spring (233), wherein the first spring (233) is arranged inside the inserting block (22), the fixing pin (232) is arranged at the other end of the first spring (233), and the fixing hole (231) corresponding to the fixing pin (232) is formed in the side edge of the upper end of the left fixing ring (24).

3. A surface-mounted fiber grating strain sensor as recited in claim 2, wherein: a plurality of groups of fixing pins (232) and springs (233) are arranged in the inserting block (22) in a display manner.

4. A surface-mounted fiber grating strain sensor as recited in claim 1, wherein: the lower end of the right fixing ring (21) is provided with a sensor fixing size adjusting assembly (3); the fixed size adjusting part of sensor (3) is including installation piece (32), arc (34), stopper (36) and central rod (37), wherein, the lower extreme of the solid fixed ring in the right side (21) is provided with installation piece (32), the side of the solid fixed ring in the right side (21) and the solid fixed ring in the left side (24) runs through and is provided with well core rod (37), the one end of well core rod (37) is provided with stopper (36), the other end of well core rod (37) is provided with arc (34).

5. A surface-type fiber grating strain sensor as claimed in claim 4, wherein: the sensor fixing size adjusting assembly (3) further comprises a sliding block (31) and a sliding groove (33), wherein the sliding block (31) is arranged on the side edge of the mounting block (32), and the sliding groove (33) corresponding to the sliding block (31) is formed in the bottom plate (26).

6. A surface-mounted fiber grating strain sensor as claimed in claim 4, wherein: and a second spring (35) is arranged on the surface of the central rod (37) between the right fixing ring (21) and the arc-shaped plate (34).

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