CN212276054U - Novel bending rebounding optical fiber sensor - Google Patents

Abstract

The utility model discloses a novel bending reboundable optical fiber sensor, which comprises an optical fiber probe, a protective shell and an optical fiber transmission line, wherein the optical fiber probe is arranged in the protective shell, the optical fiber transmission line is connected with the optical fiber probe, the front end of the protective shell is provided with a through hole, the detection end of the optical fiber probe passes through the through hole and extends to the outer side of the protective shell, the rear end of the protective shell is provided with a threading hole, the optical fiber transmission line passes through the threading hole and extends outwards, the rear end surface of the protective shell is provided with a fixed plate at the left and the right, the fixed plate is provided with a plurality of line protection components, the line protection components can move up and down relative to the fixed plate and can rotate, the optical fiber transmission line is inserted in the line protection components, when the optical fiber transmission line is bent, the line protection components can support the, prevent that the optic fibre transfer chain from buckling and damaging all the time, can protect the optic fibre transfer chain, prolong its life.

Description

Novel bending rebounding optical fiber sensor

Technical Field

The utility model particularly relates to a novel but bend optical fiber sensor who kick-backs.

Background

An optical fiber sensor is a sensor that converts the state of an object to be measured into a measurable optical signal. The optical fiber sensor has the working principle that light beams incident from a light source are sent into a modulator through an optical fiber, the light beams interact with external measured parameters in the modulator, so that optical properties of the light, such as intensity, wavelength, frequency, phase, polarization state and the like, are changed to form modulated light signals, and the modulated light signals are sent into a photoelectric device through the optical fiber and then are demodulated to obtain the measured parameters. In the whole process, the light beam is guided in through the optical fiber, passes through the modulator and then is emitted, wherein the optical fiber firstly plays the role of transmitting the light beam and secondly plays the role of an optical modulator.

When the optical fiber sensor is used, the optical fiber sensor often needs to be bent to be conveniently installed in different spaces, and the existing optical fiber detector cannot rebound after being bent too much in the using process, so that the internal optical fiber is broken and damaged, particularly the connecting line and the tail part of the probe, the part is often bent, and in order to protect the optical fiber to the maximum extent, the hard protection line is usually filled in the circuit, and the using environment of the optical fiber is limited.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a novel buckle optical fiber sensor that can kick-back.

The utility model discloses a technical scheme that its technical problem was solved to an embodiment adopted is: the utility model provides a novel buckle optical fiber sensor that can kick-back, is including optical fiber probe, protective housing and optical fiber transmission line, optical fiber probe installs in the protective housing, optical fiber transmission line and optical fiber probe are connected the front end of protective housing is equipped with the through-hole, optical fiber probe's detection end passes the through-hole and extends to the protective housing outside the rear end of protective housing is equipped with the through wires hole, optical fiber transmission line passes outside extension from the through wires hole be equipped with the fixed plate about on the rear end face of protective housing be equipped with a plurality of circuit protection subassemblies on the fixed plate, circuit protection subassembly ability relatively fixed plate reciprocates and can rotate, optical fiber transmission line alternates in the circuit protection subassembly.

Furthermore, the line protection assembly comprises a longitudinal guide groove arranged on a fixed plate, a sliding block is inserted in the longitudinal guide groove, springs are arranged at the upper end and the lower end of the sliding block respectively, the springs are connected to the fixed plate, a rotating shaft is inserted in the sliding block, a semi-arc clamping piece is arranged on the rotating shaft, the semi-arc clamping pieces corresponding to the left side and the right side are combined to form a ring-shaped sleeve, the optical fiber transmission line is inserted in the ring-shaped sleeve, a locking ring is arranged on the outer wall of the ring-shaped sleeve, and the locking ring is detachably connected with the ring-shaped sleeve.

Furthermore, the semicircular arc clamping piece comprises a semicircular ring, and a semicircular damping piece is arranged on the inner wall of the semicircular ring.

Furthermore, the semicircular shock absorption piece is a rubber pad.

Furthermore, the outer wall of the optical fiber transmission line is wrapped with a protective sleeve.

Further, the protective sheath includes: the inner core layer, the reflecting coating, the inner attached layer, the shape recovery layer, the outer attached layer, the heat preservation coating and the outer skin layer;

the utility model discloses a reflection coating, including inner core layer, interior tunica adventitia, outer tunica adventitia, inner core layer parcel is outside optic fibre transmission line, interior tunica adventitia parcel is outside inner core layer, and its and the coating of inner tunica adventitia contact surface have the reflection coating, the shape resumes the layer and coils on interior tunica adventitia, outer tunica adventitia wraps up outside shape resuming layer, and its surface coating has the heat preservation coating, outer tunica adventitia parcel is outside outer tunica adventiti.

The utility model has the advantages that: the utility model has the characteristics of simple structure is reasonable, can prevent the damage of optic fibre transfer chain, compare with current technique be equipped with the fixed plate about on the rear end face of protective housing be equipped with a plurality of circuit protection subassemblies on the fixed plate, circuit protection subassembly can relative fixed plate reciprocate and can rotate, optic fibre transfer line alternates in the circuit protection subassembly, can be when optic fibre transfer chain is buckled, and circuit protection subassembly can support optic fibre transfer chain, in time drives optic fibre transfer chain and resets, prevents that optic fibre transfer chain from buckling always and damaging, can protect optic fibre transfer chain, prolongs its life.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is one of the schematic perspective views of the present invention;

fig. 2 is a second perspective view of the present invention;

FIG. 3 is a cross-sectional exploded view of the present invention;

fig. 4 is a second exploded schematic cross-sectional view of the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 4 according to the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1 to 5, a novel bending resilient optical fiber sensor comprises an optical fiber probe 2, a protective shell 1 and an optical fiber transmission line 3, wherein the optical fiber probe 2 is installed in the protective shell 1, the optical fiber transmission line 3 is connected with the optical fiber probe 2, a through hole 10 is arranged at the front end of the protective shell 1, a detection end of the optical fiber probe 2 passes through the through hole 10 and extends to the outer side of the protective shell 1, a threading hole is arranged at the rear end of the protective shell 1, the optical fiber transmission line 3 passes through the threading hole and extends outwards, a fixing plate 11 is arranged on the rear end surface of the protective shell 1 on the left and right sides, a plurality of line protection assemblies 4 are arranged on the fixing plate 11, the line protection assemblies 4 can move up and down relative to the fixing plate 11 and can rotate, the optical fiber transmission line 3 penetrates into the line protection assemblies 4, and can support optical fibers of the optical fiber transmission line, the optical fiber conveying line is timely driven to reset, the optical fiber conveying line is prevented from being always bent and damaged, the optical fiber conveying line can be protected, and the service life of the optical fiber conveying line is prolonged.

Referring to fig. 1 to 5, the line protection assembly 4 includes a longitudinal guide groove 41 disposed on a fixing plate 11, a sliding block 42 is inserted into the longitudinal guide groove 41, springs 43 are disposed at upper and lower ends of the sliding block 42, respectively, the springs 43 are connected to the fixing plate 11, a rotating shaft 45 is inserted into the sliding block 42, a half-arc fastener 44 is disposed on the rotating shaft 45, the half-arc fasteners 44 corresponding to left and right sides are combined to form a ring-shaped sleeve, the optical fiber transmission line 3 is inserted into the ring-shaped sleeve, a locking ring 46 is disposed on an outer wall of the ring-shaped sleeve, the locking ring 46 is detachably connected to the ring-shaped sleeve, when the optical fiber transmission line is bent under pressure, the sliding block can move up and down in the longitudinal guide groove, and the rotating shaft can rotate to adjust an angle direction of the half-arc fastener according to a turning angle of the, when the constraint force applied to the optical fiber transmission line is smaller than the force of the spring, the spring drives the sliding block to move, so that the optical fiber transmission line is driven to reset, the circuit is prevented from being damaged in long-term bending, and the effect of protecting the circuit is achieved.

The utility model discloses in, locking ring 46 passes through threaded connection with the loop type cover locking ring 46 inner wall is equipped with the thread loop type cover outer wall is equipped with the thread groove, simple structure, and it is convenient to connect, and convenient to detach or equipment accord with the user demand.

Referring to fig. 1 to 5, the semicircular clamping piece 44 includes a semicircular ring 441, and a semicircular shock absorbing member 442 is disposed on an inner wall of the semicircular ring 441, so that the semicircular shock absorbing member can better protect the optical fiber transmission line and prevent the optical fiber transmission line from being damaged.

Referring to fig. 1 to 5, the semicircular shock absorbing members 442 are rubber pads, and the rubber pads have resilience and buffering properties, so that the optical fiber transmission lines can be better protected.

Referring to fig. 1-5, the outer wall of the optical fiber transmission line 3 is wrapped by a protective sleeve 5, which can further ensure that the optical fiber transmission line is not easily broken during long-term use and simultaneously has an effect of slowing down aging.

The utility model discloses in, protective sheath 5 includes: the inner core layer, the reflecting coating, the inner attached layer, the shape recovery layer, the outer attached layer, the heat preservation coating and the outer skin layer;

the utility model discloses a reflection coating, including inner core layer, interior tunica adventitia, outer tunica adventitia, inner core layer parcel is outside optic fibre transmission line, interior tunica adventitia parcel is outside inner core layer, and its and the coating of inner tunica adventitia contact surface have the reflection coating, the shape resumes the layer and coils on interior tunica adventitia, outer tunica adventitia wraps up outside shape resuming layer, and its surface coating has the heat preservation coating, outer tunica adventitia parcel is outside outer tunica adventiti.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications and substitutions are included in the scope defined by the claims of the present application.

Claims (6)

1. The utility model provides a novel bend optical fiber sensor that can kick-back, is including optical fiber probe (2), protective housing (1) and optical fiber transmission line (3), install in protective housing (1) optical fiber probe (2), optical fiber transmission line (3) are connected with optical fiber probe (2) the front end of protective housing (1) is equipped with through-hole (10), the detection end of optical fiber probe (2) passes through-hole (10) and extends to the protective housing (1) outside the rear end of protective housing (1) is equipped with the through wires hole, optical fiber transmission line (3) pass outside extension, its characterized in that from the through wires hole: be equipped with fixed plate (11) about on the rear end face of protective housing (1) be equipped with a plurality of circuit protection subassemblies (4) on fixed plate (11), circuit protection subassembly (4) can reciprocate and can rotate relatively fixed plate (11), optical fiber transmission line (3) alternate in circuit protection subassembly (4).

2. The novel bend-resilient optical fiber sensor of claim 1, wherein: the line protection assembly (4) is including setting up vertical guide way (41) on fixed plate (11) sliding block (42) have been pegged graft in vertical guide way (41) both ends are equipped with spring (43) respectively about sliding block (42), spring (43) are connected on fixed plate (11) pivot (45) are pegged graft on sliding block (42) be equipped with semicircle fastener (44) on pivot (45), and semicircle fastener (44) that the both sides correspond about combine to form the annular cover, optical fiber transmission line (3) alternate in the annular cover, are equipped with locking ring (46) on the annular cover outer wall, locking ring (46) can be dismantled with the annular cover and be connected.

3. The novel bend-resilient optical fiber sensor according to claim 2, wherein: the semicircular arc clamping piece (44) comprises a semicircular ring (441), and a semicircular damping piece (442) is arranged on the inner wall of the semicircular ring (441).

4. The novel bend-resilient optical fiber sensor of claim 3, wherein: the semicircular shock absorbing piece (442) is a rubber pad.

5. The novel bend-resilient fiber sensor of any one of claims 1 to 4, wherein: and the outer wall of the optical fiber transmission line (3) is wrapped with a protective sleeve (5).

6. The novel bend-resilient optical fiber sensor of claim 5, wherein: the protective sheath (5) comprises: the inner core layer, the reflecting coating, the inner attached layer, the shape recovery layer, the outer attached layer, the heat preservation coating and the outer skin layer;

the utility model discloses a reflection coating, including inner core layer, interior tunica adventitia, outer tunica adventitia, inner core layer parcel is outside optic fibre transmission line, interior tunica adventitia parcel is outside inner core layer, and its and the coating of inner tunica adventitia contact surface have the reflection coating, the shape resumes the layer and coils on interior tunica adventitia, outer tunica adventitia wraps up outside shape resuming layer, and its surface coating has the heat preservation coating, outer tunica adventitia parcel is outside outer tunica adventiti.

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