A fixing structure and an optical fiber sensor

Abstract

The utility model relates to optical fiber sensor technical field especially is related to a fixed knot and optical fiber sensor, it includes mounting panel, clamping plate, locking assembly B, movable plate and drive assembly. The mounting panel rotationally connects U -shaped support, and is provided locking assembly A on the U -shaped support. Clamping plate is rotatably connected with U -shaped support, and the clamping plate is provided with the clamping groove in the middle, and the clamping groove is provided with the sliding slot parallel to the clamping groove on the clamping plate, and the through -hole that communicates clamping groove and sliding slot is provided on the clamping plate. Locking assembly B connects U -shaped support and clamping plate. The movable plate is arranged in the sliding slot and is slidably connected with its inner wall, spring rod B is arranged in the movable plate, spring rod B connects sliding block, sliding block connects wedge -shaped clamping block, wedge -shaped clamping block is inserted into the clamping groove along the through -hole and is slidably connected with the inner wall of through -hole, and the inclined plane of wedge -shaped clamping block is away from the bottom surface of clamping groove. Drive assembly is connected with clamping plate and drives the movable plate of connection. The utility model has the advantages of simple operation and convenient operation in the dismounting and multi -angle adjustment of optical fiber sensor.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic sensor technology, and in particular to a fixed structure and a fiber optic sensor. Background Technology

[0002] A fiber optic sensor is a sensor that converts the state of a measured object into a measurable optical signal. During the installation and placement of fiber optic sensors, fasteners are often required. These fasteners should be easily disassembled for convenient replacement and maintenance of the sensor. However, most existing fasteners have very simple structures, making precise placement difficult.

[0003] The technical solution disclosed in Chinese Patent No. CN218916389U uses a snap-fit ​​method to install and fix the fiber optic sensor via an upper and lower base, eliminating the need for screws. This reduces the risk of stripping or rusting during long-term use, facilitates disassembly, and makes it convenient to use. By incorporating insertion rods, disassembling the fiber optic sensor simply requires pressing the connecting plates on both sides of the insertion rods. This causes the abutment blocks on the insertion rods to apply low pressure to the locking block, freeing the L-shaped limiting groove from restricting the locking block and facilitating the disassembly of the upper base.

[0004] However, the device still has shortcomings: it lacks an auxiliary adjustment structure for the horizontal and pitch angles of the fiber optic sensor, requiring precise drilling for installation and fixation during actual installation, which is difficult to operate. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a fixed structure and an optical fiber sensor.

[0006] The technical solution of this utility model is as follows: On the one hand, this utility model proposes a fixed structure, including a mounting plate, which is rotatably connected to a U-shaped frame, and the U-shaped frame is provided with a locking component A that restricts its relative rotation with respect to the mounting plate.

[0007] The card plate is located inside the opening of the U-shaped frame and is rotatably connected to it. A card slot is set in the center of the card plate, and a sliding groove parallel to the card slot is set on the card plate. A through hole connecting the card slot and the sliding groove is also set on the card plate.

[0008] Locking component B is connected to the U-shaped frame. When locked, locking component B restricts the rotation of the card plate relative to the U-shaped frame.

[0009] A movable plate is set in a slide groove and slidably connected to its inner wall. A spring rod B is set in the movable plate. The spring rod B is connected to a slider. The slider is connected to a wedge-shaped block. The wedge-shaped block is inserted into the slot along the through hole and slidably connected to the inner wall of the through hole. The inclined surface of the wedge-shaped block is away from the bottom surface of the slot.

[0010] And a drive component, which is connected to the card plate and drives the movable plate to slide along a direction perpendicular to the bottom surface of the card slot.

[0011] Preferably, a column is provided on the mounting plate, the column is inserted into the U-shaped frame and rotatably connected to it, and several anti-slip grooves are provided on the arc surface of the column around its axis.

[0012] Preferably, the locking assembly A includes a locking knob, a locking knob connected to a screw, the screw being inserted into the U-shaped frame in a direction perpendicular to the column and screwed to the U-shaped frame, and the end of the screw away from the locking knob abutting against the arc surface of the column.

[0013] Preferably, the locking assembly B includes a spring rod A, a lever plate, and a locking block. Two rotating shafts are symmetrically arranged on the locking plate, with the ends of the shafts furthest from the locking plate rotatably connected to a U-shaped frame. On the arc surface of one of the rotating shafts, several limiting grooves are arranged in a circular array around its axis. A side groove is provided on the U-shaped frame, and both the spring rod A and the lever plate are located within the side groove. One end of the spring rod A is connected to the bottom surface of the side groove, and the other end of the spring rod A is connected to the lever plate. The bottom of the locking block is connected to the end of the lever plate furthest from the spring rod A, and the top of the locking block is inserted into the corresponding limiting groove.

[0014] Preferably, the slide includes two slides, and the two slides are symmetrical about the center of the slot. Movable plates are slidably arranged in both slides, and the end of the slide away from the bottom surface of the slot is higher than the upper wall of the through hole.

[0015] Preferably, the drive assembly includes a lead screw, a worm gear, a worm, and an adjusting knob. Two lead screws pass through and are helically connected to corresponding movable plates. Both lead screws are rotatably connected to a clamping plate. The worm gear is coaxially connected to the lead screws. The clamping plate is rotatably connected to a drive shaft. Both worms are coaxially connected to the drive shaft, which is coaxially connected to bevel gear A. The adjusting knob is rotatably connected to the clamping plate and is connected to bevel gear B. Bevel gear A meshes with bevel gear B.

[0016] On the other hand, this utility model also proposes an optical fiber sensor with the above-mentioned fixed structure, which further includes a sensor assembly. The sensor assembly includes a mounting handle, a probe, and a cable. The mounting handle is located in the slot and abuts against the bottom surface of the slot and the plane of the wedge-shaped block. The mounting handle connects the probe and the cable, and the cable is electrically connected to the probe.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] By rotating the mounting plate and clamping plate on the U-shaped frame and setting locking components A and B, the pitch and horizontal angles of the clamping plate can be quickly adjusted. Furthermore, the structure of the movable plate and wedge-shaped locking block allows the fiber optic sensor to automatically push the wedge-shaped locking block open when it is laterally inserted into the slot. After the fiber optic sensor is fully inserted, the wedge-shaped locking block automatically pops out and seals the opening of the slot. Simultaneously, the invention incorporates a drive component structure that drives the movable plate to slide, enabling the device to clamp and fix fiber optic sensors of different sizes. The operation is simple and highly stable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure of the various components on the card plate;

[0021] Figure 3 A schematic diagram of the connection mechanism between the movable plate and the drive assembly;

[0022] Figure 4 This is a schematic diagram of the fiber optic sensor.

[0023] Reference numerals: 1. Mounting plate; 2. Column; 3. U-shaped frame; 31. Side groove; 4. Locking knob; 5. Clamping plate; 51. Clamping slot; 52. Slide groove; 53. Through hole; 6. Rotating shaft; 61. Limiting groove; 7. Spring rod A; 8. Paddle plate; 9. Clamping block; 10. Movable plate; 11. Spring rod B; 12. Slider; 13. Wedge-shaped clamping block; 14. Drive assembly; 141. Lead screw; 142. Worm gear; 143. Drive shaft; 144. Worm; 145. Bevel gear A; 146. Adjustment knob; 147. Bevel gear B; 15. Sensor assembly; 151. Mounting handle; 152. Probe; 153. Cable. Detailed Implementation

[0024] Example 1

[0025] like Figures 1-3As shown, the present invention proposes a fixing structure including a mounting plate 1, a clamping plate 5, a locking assembly B, a movable plate 10, and a driving assembly 14. The mounting plate 1 is rotatably connected to a U-shaped frame 3. A column 2 is mounted on the mounting plate 1, inserted into and rotatably connected to the U-shaped frame 3. Several anti-slip grooves are provided on the arc surface of the column 2 around its axis. A locking assembly A is provided on the U-shaped frame 3 to restrict its relative rotation with respect to the mounting plate 1. The locking assembly A includes a locking knob 4, connected to a screw rod. The screw rod is inserted into the U-shaped frame 3 in a direction perpendicular to the column 2 and is helically connected to the U-shaped frame 3. The end of the screw rod away from the locking knob 4 abuts against the arc surface of the column 2. The clamping plate 5 is located inside the opening of the U-shaped frame 3 and rotatably connected to it. A slot 51 is centrally located on the clamping plate 5, and a sliding groove 52 parallel to the slot 51 is provided on the clamping plate 5. A through hole 53 connecting the slot 51 and the sliding groove 52 is provided on the clamping plate 5. Furthermore, the sliding grooves 52 on both sides are symmetrical about the center of the slot 51, and the end of the sliding groove 52 away from the bottom surface of the slot 51 is higher than the upper wall of the through hole 53. The locking assembly B includes a spring rod A7, a lever plate 8, and a locking block 9. Two rotating shafts 6 are symmetrically arranged on the slot plate 5. The ends of the rotating shafts 6 away from the slot plate 5 are rotatably connected to the U-shaped frame 3. On the arc surface of one of the rotating shafts 6, several limiting grooves 61 are arranged in a ring array around its axis. The U-shaped frame 3 is provided with a side groove 31. The spring rod A7 and the lever plate 8 are both arranged in the side groove 31. One end of the spring rod A7 is connected to the bottom surface of the side groove 31, and the other end of the spring rod A7 is connected to the lever plate 8. The bottom of the locking block 9 is connected to the end of the lever plate 8 away from the spring rod A7, and the top of the locking block 9 is inserted into the corresponding limiting groove 61. In the locked state, the locking assembly B restricts the rotation of the slot plate 5 relative to the U-shaped frame 3. The movable plate 10 is disposed within the slide groove 52 and slidably connected to its inner wall. A spring rod B11 is disposed within the movable plate 10, and the spring rod B11 is connected to the slider 12. The slider 12 is connected to the wedge-shaped locking block 13. The wedge-shaped locking block 13 is inserted into the locking groove 51 along the through hole 53 and slidably connected to the inner wall of the through hole 53, with the inclined surface of the wedge-shaped locking block 13 away from the bottom surface of the locking groove 51. The drive assembly 14 includes a lead screw 141, a worm gear 142, a worm 144, and an adjustment knob 146. Two lead screws 141 pass through the movable plate 10 on the corresponding side and are helically connected to it. Both lead screws 141 are rotatably connected to the locking plate 5. The worm gear 142 is coaxially connected to the lead screw 141. The locking plate 5 is rotatably connected to the drive shaft 143. Both worms 144 are coaxially connected to the drive shaft 143. The drive shaft 143 is coaxially connected to the bevel gear A145. The adjusting knob 146 is rotatably connected to the clamping plate 5. The adjusting knob 146 is connected to the bevel gear B147, and the bevel gear A145 meshes with the bevel gear B147.

[0026] In this embodiment, the mounting plate 1 is fixed at the mounting point. Rotating the locking knob 4 causes the screw to no longer press against the column 2, at which point the U-shaped frame 3 can rotate around the axis of the column 2. Pushing the lever 8 downwards causes the lever 8 to slide the locking block 9 down until it disengages from the limiting groove 61. The locking plate 5 can then rotate around the axis of the rotating shaft 6. After rotating to an appropriate angle, the lever 8 is released, and under the tension of the spring rod A7, the lever 8 automatically resets and locks into the corresponding limiting groove 61, thus fixing the pitch angle of the locking plate 5. When inserting the carrier, the carrier mounting part is inserted into the slot 51 from the side opening. The carrier mounting part abuts against the unloading surface of the wedge-shaped locking block 13, causing the wedge-shaped locking block 13 to retract. The carrier enters the clamping area. Then, the adjustment knob 146 is driven. The adjustment knob 146 drives the bevel gear B147 to rotate. The bevel gear B147 drives the bevel gear A145, the transmission shaft 143, and the worm gear 144 to rotate. The worm gear 144 drives the worm wheel 142 and the lead screw 141 to rotate. The lead screw 141 drives the movable plate 10 to slide. The movable plate 10 drives the wedge-shaped locking block 13 to slide towards the upper surface of the carrier until the wedge-shaped locking block 13 engages with the bottom surface of the slot 51 to press the carrier tightly. When the carrier needs to be disassembled, the reverse drive screw 141 rotates, and the movable plate 10 rises to the top of the slide groove 52. At this time, the wedge-shaped block 13 automatically retracts due to the contact between the inclined surface and the upper wall of the through hole 53, so that the opening of the slot 51 is opened, and the carrier mounting part can slide out or enter freely in the slot 51.

[0027] Example 2

[0028] like Figure 1 and Figure 4 As shown, the fiber optic sensor with the above-mentioned fixed structure proposed in this utility model, compared with Embodiment 1, further includes a sensor assembly 15. The sensor assembly 15 includes a mounting handle 151, a probe 152 and a cable 153. The mounting handle 151 is located in the slot 51 and abuts against the bottom surface of the slot 51 and the plane of the wedge-shaped block 13. The mounting handle 151 connects the probe 152 and the cable 153, and the cable 153 is electrically connected to the probe 152.

[0029] In this embodiment, the wedge-shaped locking block 13 is used to lock the mounting handle 151 of the sensor assembly 15 by engaging the bottom surface of the slot 51. The pitch and horizontal angles of the probe 152 can be adjusted using the above-mentioned fixing structure. The sensor assembly 15 can be installed or removed by a pull-out method or by a side-sliding method, which is simple and convenient to operate.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A fixed structure, characterized in that, include Mounting plate (1), mounting plate (1) is rotatably connected to U-shaped frame (3), and U-shaped frame (3) is provided with locking component A to restrict its relative rotation with respect to mounting plate (1); The card plate (5) is located inside the opening of the U-shaped frame (3) and is rotatably connected to it. The card plate (5) has a card slot (51) in the center, and a sliding groove (52) parallel to the card slot (51) is provided on the card plate (5). The card plate (5) also has a through hole (53) connecting the card slot (51) and the sliding groove (52). Locking component B is connected to the U-shaped frame (3). In the locked state, locking component B restricts the rotation of the card plate (5) relative to the U-shaped frame (3). Movable plate (10) is set in slide groove (52) and slidably connected to its inner wall. Spring rod B (11) is set in movable plate (10). Spring rod B (11) is connected to slider (12). Slider (12) is connected to wedge block (13). Wedge block (13) is inserted into slot (51) along through hole (53) and slidably connected to the inner wall of through hole (53). The inclined surface of wedge block (13) is far away from the bottom surface of slot (51). And a drive assembly (14), which is connected to the card plate (5) and drives the movable plate (10) to slide along a direction perpendicular to the bottom surface of the card slot (51).

2. The fixing structure according to claim 1, characterized in that, The mounting plate (1) is equipped with a column (2), which is inserted into the U-shaped frame (3) and rotatably connected to it. Several anti-slip grooves are set on the arc surface of the column (2) around its axis.

3. The fixing structure according to claim 2, characterized in that, The locking assembly A includes a locking knob (4), which is connected to a screw rod. The screw rod is inserted into the U-shaped frame (3) in a direction perpendicular to the column (2) and is screwed to the U-shaped frame (3). The end of the screw rod away from the locking knob (4) abuts against the arc surface of the column (2).

4. The fixing structure according to claim 1, characterized in that, The locking assembly B includes a spring rod A (7), a lever plate (8), and a locking block (9). Two rotating shafts (6) are symmetrically arranged on the locking plate (5). The ends of the rotating shafts (6) away from the locking plate (5) are rotatably connected to the U-shaped frame (3). On the arc surface of one of the rotating shafts (6), several limiting grooves (61) are arranged in a ring array around its axis. The U-shaped frame (3) is provided with a side groove (31). The spring rod A (7) and the lever plate (8) are both located in the side groove (31). One end of the spring rod A (7) is connected to the bottom surface of the side groove (31), and the other end of the spring rod A (7) is connected to the lever plate (8). The bottom of the locking block (9) is connected to the end of the lever plate (8) away from the spring rod A (7), and the top of the locking block (9) is inserted into the corresponding limiting groove (61).

5. A fixing structure according to claim 1, characterized in that, The slide (52) includes two slides, and the two slides (52) are symmetrical about the center of the slot (51). Movable plates (10) are slidably arranged in both slides (52). The end of the slide (52) away from the bottom surface of the slot (51) is higher than the upper wall of the through hole (53).

6. The fixing structure according to claim 5, characterized in that, The drive assembly (14) includes a lead screw (141), a worm gear (142), a worm (144), and an adjustment knob (146). The two lead screws (141) pass through the corresponding movable plates (10) and are helically connected to them. Both lead screws (141) are rotatably connected to the clamping plate (5). The worm gear (142) is coaxially connected to the lead screws (141). The clamping plate (5) is rotatably connected to the drive shaft (143). Both worms (144) are coaxially connected to the drive shaft (143). The drive shaft (143) is coaxially connected to the bevel gear A (145). The adjustment knob (146) is rotatably connected to the clamping plate (5). The adjustment knob (146) is connected to the bevel gear B (147). The bevel gear A (145) meshes with the bevel gear B (147).

7. A fiber optic sensor, comprising the fixed structure according to any one of claims 1-6, characterized in that, It also includes a sensor assembly (15), which includes a mounting handle (151), a probe (152) and a cable (153). The mounting handle (151) is located in the slot (51) and abuts against the bottom surface of the slot (51) and the plane of the wedge-shaped block (13). The mounting handle (151) connects the probe (152) and the cable (153), and the cable (153) is electrically connected to the probe (152).

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