CN213936199U - Avalanche photoelectric detector - Google Patents

Abstract

The utility model discloses an avalanche photodetector, which is characterized in that the connecting shafts sequentially penetrate through the connecting holes to ensure that the bottom plate is movably connected with the rotating shaft, the second rod body slides in the chute, the bottom plate is turned over at a certain angle through the connecting frame, the rotating shaft is rotated simultaneously to enlarge the angle-adjustable range of the bottom plate, so that after an avalanche diode on the detector body on the bottom plate is aligned with the laser of a laser emitter, the fixing bolt is pulled to ensure that the inserting end of the fixing bolt is inserted into the fixing hole, the rotating shaft is fixed, the distance between every two jacks is consistent with the distance between two contact pins and is matched with the limiting plate, the contact pins are inserted into the corresponding jacks to ensure that the limiting plate in the chute is fixed, thereby the detector body after the angle adjustment is fixed on the angle-adjustable mounting seat, the operation is more convenient without screwing the bolt.

Description

Avalanche photoelectric detector

Technical Field

The utility model relates to a photoelectric detector technical field especially relates to an avalanche photoelectric detector.

Background

The principle of the avalanche photodetector is that the conductivity of an irradiated material is changed due to radiation, and an optical signal is converted into an electric signal, wherein an avalanche diode is a key component for receiving laser and converting the laser into the electric signal; when the avalanche photodetector receives laser, the laser must be directly irradiated onto an avalanche diode of the detector, and then the photodiode converts an optical signal into an electrical signal; therefore, it is necessary to ensure that the avalanche diode is aligned with the laser emitter, if the photodiode is slightly biased, the laser cannot hit the photodiode, but in actual operation, the angle of the mounting seat of the avalanche photodetector needs to be adjusted to align the laser with the avalanche diode, but most of the mounting seats of the existing avalanche photodetectors are fixedly arranged through bolts, and the bolts need to be screwed when the angle is adjusted, which is troublesome to operate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an avalanche photodetector, current avalanche photodetector mount pad that aims at solving among the prior art mostly is through the bolt fastening setting, need twist the bolt during angle of adjustment, troublesome poeration's technical problem.

In order to achieve the above object, the avalanche photodetector adopted by the present invention comprises a detector body and an angle-adjustable mounting seat, wherein the detector body is detachably connected with the angle-adjustable mounting seat and is located above the angle-adjustable mounting seat, the angle-adjustable mounting seat comprises a substrate, a bottom plate, a rotating shaft, a fixing bolt, a rotating frame, a connecting shaft, a telescopic rod and a fixing plug-in, the substrate is provided with a rotating groove, the rotating shaft is movably connected with the substrate and is located in the rotating groove, the rotating shaft is provided with a fixing hole, one end of the fixing bolt is movably connected with the substrate, the other end of the fixing bolt corresponds to the fixing hole, the rotating frame is fixedly connected with the connecting shaft and is located below the bottom plate, one end of the rotating shaft away from the substrate and the rotating frame are both provided with connecting holes, the connecting shaft sequentially penetrates through the connecting holes, and the detector body is arranged on the bottom plate;

a connecting frame is further arranged below the bottom plate, a connecting ring is further arranged on the rotating shaft, one end of the telescopic rod is movably connected with the connecting frame, the other end of the telescopic rod is movably connected with the connecting ring, the telescopic rod comprises a first rod body, a second rod body and a limiting plate, the first rod body is movably connected with the connecting ring, the second rod body is movably connected with the connecting frame, a chute is arranged inside the first rod body, the second rod body is slidably connected with the first rod body and is positioned in the chute, the limiting plate is fixedly connected with the second rod body and is positioned at one end, far away from the connecting frame, of the second rod body and is positioned in the chute, the fixing plug-in unit comprises a pull ring, a rod body and two contact pins, the contact pins are arranged at two ends of the rod body, and the end, far away from the contact pins, of the rod body is provided with the pull ring, a plurality of jacks are uniformly arranged on the first rod body, and the distance between every two jacks is consistent with the distance between every two contact pins and is matched with the limiting plate.

The fixing bolt comprises a rotating shaft, a vertical rod and a fixing rod, a placing groove is formed in the base plate, the rotating shaft is movably connected with the base plate and is located in the placing groove, one end of the vertical rod is fixedly connected with the rotating shaft, the other end of the vertical rod is fixedly connected with the fixing rod, the vertical rod is perpendicular to the fixing rod, and the fixing rod corresponds to the fixing hole.

The connecting shaft comprises a shaft body, a fixing plate and a nut, the shaft body penetrates through the connecting holes in sequence, the fixing plate is fixedly connected with the shaft body, threads are arranged at one end, far away from the fixing plate, of the shaft body, and the nut is matched with the threads.

The connecting ring comprises a first half ring, a second half ring and connecting blocks, a clamping block is arranged on the first half ring, a clamping groove is formed in the second half ring, the clamping block is matched with the clamping groove, one end, away from the clamping block, of the first half ring and one end, away from the clamping groove, of the second half ring are both provided with the connecting blocks, one end, away from the second rod body, of the first rod body is movably connected with the two connecting blocks, and the first rod body is located between the two connecting blocks.

The telescopic rod further comprises a cover plate, and the cover plate is connected with the first rod body in a clamping mode and is located at one end, far away from the connecting block, of the first rod body.

Wherein, the dead lever is kept away from the one end of montant is provided with the rubber circle.

The beneficial effects of the utility model are embodied in: the connecting shaft sequentially penetrates through the connecting holes to movably connect the bottom plate with the rotating shaft, the second rod body slides in the sliding groove, the bottom plate is turned over at a certain angle through the connecting frame, the rotating shaft is rotated to expand the angle adjustable range of the bottom plate, after an avalanche diode on the detector body on the bottom plate is aligned with laser of a laser emitter, the fixing bolt is pulled to enable the inserting end of the fixing bolt to be inserted into the fixing hole, the rotating shaft is fixed, the distance between every two inserting holes is consistent with the distance between every two inserting holes and is matched with the limiting plate, the inserting pins are inserted into the corresponding inserting holes, the limiting plate in the sliding groove is fixed, and the detector body after angle adjustment is fixed on the angle adjustable mounting seat, the operation is more convenient without screwing the bolt.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of an avalanche photodetector of the present invention.

Fig. 2 is a schematic structural diagram of the avalanche photodetector of the present invention.

Fig. 3 is an enlarged view of a partial structure of fig. 2 a according to the present invention.

Fig. 4 is an enlarged view of a partial structure of fig. 2B.

Fig. 5 is a schematic structural view of the telescopic rod of the present invention.

Fig. 6 is a schematic structural view of the connection ring of the present invention.

1-detector body, 2-angle adjustable mounting base, 3-base plate, 4-bottom plate, 5-rotating shaft, 6-fixed bolt, 7-rotating frame, 8-connecting shaft, 9-telescopic rod, 10-fixed plug-in, 11-fixed hole, 12-connecting frame, 13-connecting ring, 14-first rod body, 15-second rod body, 16-limiting plate, 17-sliding groove, 18-pull ring, 19-rod body, 20-inserting pin, 21-inserting hole, 22-rotating shaft, 23-vertical rod, 24-fixed rod, 25-placing groove, 26-shaft body, 27-fixed plate, 28-nut, 29-first half ring, 30-second half ring, 31-connecting block, 32-clamping block, 29-clamping block, 33-clamping groove, 34-cover plate and 35-rubber ring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 6, the utility model provides an avalanche photodetector, which comprises a detector body 1 and an angle-adjustable mounting base 2, wherein the detector body 1 is detachably connected with the angle-adjustable mounting base 2 and is located above the angle-adjustable mounting base 2, the angle-adjustable mounting base 2 comprises a base plate 3, a bottom plate 4, a rotating shaft 5, a fixing bolt 6, a rotating frame 7, a connecting shaft 8, an expansion link 9 and a fixing plug-in 10, the base plate 3 is provided with a rotating groove, the rotating shaft 5 is movably connected with the base plate 3 and is located in the rotating groove, the rotating shaft 5 is provided with a fixing hole 11, one end of the fixing bolt 6 is movably connected with the base plate 3, the other end of the fixing bolt 6 corresponds to the fixing hole 11, the rotating frame 7 is fixedly connected with the connecting shaft 8, the detector is arranged below the bottom plate 4, connecting holes are formed in one end, away from the substrate 3, of the rotating shaft 5 and the rotating frame 7, the connecting shafts 8 sequentially penetrate through the connecting holes, and the detector body 1 is arranged on the bottom plate 4;

the below of bottom plate 4 still is provided with connection box 12, still be provided with go-between 13 on the axis of rotation 5, the one end of telescopic link 9 with connection box 12 swing joint, the other end of telescopic link 9 with go-between 13 swing joint, telescopic link 9 includes the first body of rod 14, the second body of rod 15 and limiting plate 16, the first body of rod 14 with go-between 13 swing joint, the second body of rod 15 with connection box 12 swing joint, the inside of the first body of rod 14 is provided with spout 17, the second body of rod 15 with the first body of rod 14 sliding connection, and be located in spout 17, limiting plate 16 with the second body of rod 15 fixed connection, and be located the second body of rod 15 is kept away from the one end of connection box 12, and is located in spout 17, fixed plug-in 10 includes pull ring 18, the body of rod 19 and two contact pins 20, the both ends of the body of rod 19 all are provided with contact pin 20, the body of rod 19 is kept away from contact pin 20's one end is provided with pull ring 18, evenly be provided with a plurality of jacks 21 on the first body of rod 14, per two distance between the jack 21 and two distance between the contact pin 20 is unanimous, and with limiting plate 16 looks adaptation.

In this embodiment, a fixing hole 11 is formed in the rotation shaft 5, the fixing bolt 6 corresponds to the fixing hole 11, the rotation frame 7 is fixedly connected to the connecting shaft 8, a connecting hole is formed in one end of the rotation shaft 5, which is far away from the substrate 3, of the rotation frame 7, the connecting shaft 8 sequentially penetrates through the connecting hole, the detector body 1 is arranged on the bottom plate 4, the distance between every two insertion holes 21 is consistent with the distance between every two insertion pins 20, the bottom plate 4 is movably connected to the rotation shaft 5 by sequentially penetrating through the connecting hole through the connecting shaft 8, the second rod body 15 slides in the sliding groove 17, the bottom plate 4 is turned over at a certain angle by the connecting frame 12, and the rotation shaft 5 is rotated to expand the angle-adjustable range of the bottom plate 4, after aligning the avalanche diode on the detector body 1 on the bottom plate 4 with the laser of the laser emitter, pulling the fixing plug 6 to insert the insertion end of the fixing plug 6 into the fixing hole 11, so that the rotating shaft 5 is fixed, and then inserting the two insertion pins 20 of the fixing plug 10 into the corresponding insertion holes 21, so that the limiting plate 16 in the sliding groove 17 is fixed, thereby fixing the detector body 1 with the adjusted angle on the angle-adjustable mounting seat 2, and the operation is more convenient without screwing the bolt.

Further, fixing bolt 6 includes pivot 22, montant 23 and dead lever 24, be provided with standing groove 25 on the base plate 3, pivot 22 with 3 swing joint of base plate is located in the standing groove 25, the one end of montant 23 with pivot 22 fixed connection, the other end of montant 23 with dead lever 24 fixed connection, montant 23 with dead lever 24 mutually perpendicular, dead lever 24 with fixed orifices 11 are corresponding.

In this embodiment, after the detector body 1 on the bottom plate 4 is turned over by a certain angle through the telescopic rod 9, the rotating shaft 5 is rotated, so that after the avalanche diode on the detector body 1 is aligned with the laser of the laser emitter, the vertical rod 23 is pulled, the fixing rod 24 penetrates through the fixing hole 11, the rotating shaft 5 is fixed, the rotating shaft 22 and the fixing rod 24 are both fixedly connected with the vertical rod 23, and the detector is manufactured by adopting an integral forming technology, so that the structure is firmer.

Further, the connecting shaft 8 includes a shaft body 26, a fixing plate 27 and a nut 28, the shaft body 26 sequentially penetrates through the connecting hole, the fixing plate 27 is fixedly connected with the shaft body 26, a thread is arranged at one end of the shaft body 26 far away from the fixing plate 27, and the nut 28 is matched with the thread.

In this embodiment, after the shaft 26 is sequentially inserted through the connection holes, the nut 28 is tightened to movably connect the rotating frame 7 and the rotating shaft 5, and the fixing plate 27 and the shaft 26 are fixedly connected, so that the structure is more firmly manufactured by using an integral molding technique.

Further, the connecting ring 13 includes a first half ring 29, a second half ring 30 and connecting blocks 31, a clamping block 32 is disposed on the first half ring 29, a clamping groove 33 is disposed on the second half ring 30, the clamping block 32 is adapted to the clamping groove 33, the connecting blocks 31 are disposed at both an end of the first half ring 29 away from the clamping block 32 and an end of the second half ring 30 away from the clamping groove 33, and an end of the first rod 14 away from the second rod 15 is movably connected to the two connecting blocks 31 and is located between the two connecting blocks 31.

In this embodiment, after the first half ring 29 and the second half ring 30 are both placed outside the rotating shaft 5, the locking block 32 is locked into the locking groove 33, the rotating end of the first rod 14 is placed between the two connecting blocks 31, the telescopic rod 9 is movably connected to the connecting ring 13 through bolts, and each connecting block 31 is fixedly connected to the corresponding first half ring 29 and the corresponding second half ring 30, so that the structure is more firm when the telescopic rod is manufactured by using an integral molding technology.

Further, the telescopic rod 9 further comprises a cover plate 34, and the cover plate 34 is connected with the first rod 14 in a clamping manner and is located at one end of the first rod 14, which is far away from the connecting block 31.

In this embodiment, after the second rod 15 is placed in the sliding groove 17, the cover plate 34 is covered, so that the second rod 15 does not fall off from the sliding groove 17.

Further, one end of the fixing rod 24 far away from the vertical rod 23 is provided with a rubber ring 35.

In the present embodiment, the fixing lever 24 is pressed against the fixing hole 11 by the rubber ring, so that the fixing lever 24 does not fall off from the fixing hole 11.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (6)

1. An avalanche photodetector characterized in that,

the detector comprises a detector body and an angle-adjustable mounting seat, wherein the detector body is detachably connected with the angle-adjustable mounting seat and is positioned above the angle-adjustable mounting seat, the angle-adjustable mounting seat comprises a substrate, a bottom plate, a rotating shaft, a fixed bolt, a rotating frame, a connecting shaft, a telescopic rod and a fixed plug-in, the substrate is provided with a rotating groove, the rotating shaft is movably connected with the substrate and is positioned in the rotating groove, the rotating shaft is provided with a fixed hole, one end of the fixed bolt is movably connected with the substrate, the other end of the fixed bolt corresponds to the fixed hole, the rotating frame is fixedly connected with the connecting shaft and is positioned below the bottom plate, one end of the rotating shaft, which is far away from the substrate, and the rotating frame are both provided with connecting holes, and the connecting shaft sequentially penetrates through the connecting holes, the detector body is arranged on the bottom plate;

a connecting frame is further arranged below the bottom plate, a connecting ring is further arranged on the rotating shaft, one end of the telescopic rod is movably connected with the connecting frame, the other end of the telescopic rod is movably connected with the connecting ring, the telescopic rod comprises a first rod body, a second rod body and a limiting plate, the first rod body is movably connected with the connecting ring, the second rod body is movably connected with the connecting frame, a chute is arranged inside the first rod body, the second rod body is slidably connected with the first rod body and is positioned in the chute, the limiting plate is fixedly connected with the second rod body and is positioned at one end, far away from the connecting frame, of the second rod body and is positioned in the chute, the fixing plug-in unit comprises a pull ring, a rod body and two contact pins, the contact pins are arranged at two ends of the rod body, and the end, far away from the contact pins, of the rod body is provided with the pull ring, a plurality of jacks are uniformly arranged on the first rod body, and the distance between every two jacks is consistent with the distance between every two contact pins and is matched with the limiting plate.

2. The avalanche photodetector of claim 1,

the fixing bolt comprises a rotating shaft, a vertical rod and a fixing rod, a placing groove is formed in the base plate, the rotating shaft is movably connected with the base plate and is located in the placing groove, one end of the vertical rod is fixedly connected with the rotating shaft, the other end of the vertical rod is fixedly connected with the fixing rod, the vertical rod is perpendicular to the fixing rod, and the fixing rod corresponds to the fixing hole.

3. The avalanche photodetector of claim 1,

the connecting axle includes axis body, fixed plate and nut, the axis body runs through in proper order the connecting hole, the fixed plate with axis body fixed connection, the axis body is kept away from the one end of fixed plate is provided with the screw thread, the nut with screw thread looks adaptation.

4. The avalanche photodetector of claim 1,

the connecting ring comprises a first half ring, a second half ring and connecting blocks, a clamping block is arranged on the first half ring, a clamping groove is formed in the second half ring, the clamping block is matched with the clamping groove, one end, away from the clamping block, of the first half ring and one end, away from the clamping groove, of the second half ring are both provided with the connecting blocks, one end, away from the second rod body, of the first rod body is movably connected with the two connecting blocks and is located between the two connecting blocks.

5. The avalanche photodetector of claim 4,

the telescopic rod further comprises a cover plate, and the cover plate is connected with the first rod body in a clamping mode and is located at one end, far away from the connecting block, of the first rod body.

6. The avalanche photodetector of claim 2,

and one end of the fixed rod, which is far away from the vertical rod, is provided with a rubber ring.

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