CN216565178U

CN216565178U - Encoder of polarization encoding quantum key distribution system

Info

Publication number: CN216565178U
Application number: CN202123239738.8U
Authority: CN
Inventors: 张玲松
Original assignee: Beijing Zhengdao Quantum Technology Co ltd
Current assignee: Beijing Zhengdao Quantum Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-05-17
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses an encoder of a polarization encoding quantum key distribution system, which comprises an encoder main body and a base, wherein the lower surface of the encoder main body is fixedly connected with a fixed plate, the side surface of the fixed plate is provided with a groove, the inner wall of the groove is connected with a sliding plate in a sliding manner, the front surface of the fixed plate is in threaded connection with a fixed bolt, and the upper surface of the sliding plate is fixedly connected with a clip. This polarization coding quantum key distribution system encoder, the pulling cardboard, the cardboard removes, the semi-circular opening with first card line mouth and second card line mouth parts, can place the connecting wire between first card line mouth and second card line mouth, not hard up cardboard, the extension spring drives the cardboard and removes, the cooperation returns the shape strip and can be with the rigidity of connecting wire, conveniently manage the line, and the fixed plate, sliding plate and fixing bolt's setting, can adjust back the interval of shape strip and encoder main part, can reserve more space and carry out dismantling of circuit, thereby make this encoder be convenient for carry out the dismouting of interconnecting link.

Description

Encoder of polarization encoding quantum key distribution system

Technical Field

The utility model relates to the technical field of quantum key distribution, in particular to an encoder of a polarization encoding quantum key distribution system.

Background

The method comprises the steps of distributing a polarization coding quantum key, preparing the polarization state of photons into one of the four polarization states by an emitting party at random, selecting two groups of polarization bases by a receiving party at random to measure the photons so as to complete decoding, and adopting four single photon detectors to detect the four polarization states respectively in a traditional measurement scheme.

The existing encoder needs to be connected with a plurality of lines, the types of interfaces are various, the lines are easy to wind when the number of the lines is large, and further the lines are inconvenient to plug and pull, so that the encoder of the polarization encoding quantum key distribution system is provided.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a polarization-encoded quantum key distribution system encoder, so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a polarization coding quantum key distribution system encoder, including encoder main part and base, the lower fixed surface of encoder main part is connected with the fixed plate, the side of fixed plate is seted up flutedly, the inner wall sliding connection of recess has the sliding plate, the positive threaded connection of fixed plate has fixing bolt, the last fixed surface of sliding plate is connected with back the shape strip, the inner wall sliding connection who returns the shape strip has the cardboard, the front and the equal fixedly connected with in the back of cardboard stop the strip, the front fixedly connected with extension spring that openly blocks the strip, the positive fixedly connected with concave plate that returns the shape strip, first card line mouth has been seted up to the side of cardboard, the second card line mouth has been seted up to the side of returning the shape strip.

Preferably, the upper surface of base rotates through the carousel bearing and is connected with the rotor plate, and the last fixed surface of rotor plate is connected with the supporting leg, and the upper surface of rotor plate is seted up threaded hole, and the inner wall threaded connection of threaded hole has and supports tight bolt.

Preferably, the top end of the supporting leg is fixedly connected with the lower surface of the encoder main body, and the threaded end of the abutting bolt abuts against the upper surface of the base.

Preferably, the front surface of the sliding plate is provided with a plurality of counter bores matched with the fixing bolts, and the counter bores are arranged on the front surface of the sliding plate in a straight shape at equal intervals.

Preferably, one end of the tension spring, which is far away from the barrier strip, is fixedly connected with the inner front wall of the concave plate.

Preferably, the first wire clamping port and the second wire clamping port are both composed of rectangular openings and semicircular openings.

Advantageous effects

The utility model provides an encoder of a polarization encoding quantum key distribution system, which has the following beneficial effects:

1. this polarization coding quantum key distribution system encoder, the pulling cardboard, the cardboard removes, the semi-circular opening with first card line mouth and second card line mouth parts, can place the connecting wire between first card line mouth and second card line mouth, not hard up cardboard, the extension spring drives the cardboard and removes, the cooperation returns the shape strip and can be with the rigidity of connecting wire, conveniently manage the line, and the fixed plate, sliding plate and fixing bolt's setting, can adjust back the interval of shape strip and encoder main part, can reserve more space and carry out dismantling of circuit, thereby make this encoder be convenient for carry out the dismouting of interconnecting link.

2. This polarization coding quantum key distribution system encoder, the rotor plate can drive the encoder main part and rotate to support the setting of tight bolt, support tight bolt and support the position that tight base can be with the encoder main part and fix, thereby the rotation of the encoder main part of being convenient for, convenient wiring.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the clip plate and the clip strip of the present invention;

FIG. 4 is a schematic perspective view of a clip strip according to the present invention;

FIG. 5 is a schematic perspective view of a card of the present invention.

In the figure: 1 encoder main part, 2 bases, 3 fixed plates, 4 sliding plates, 5 fixing bolts, 6 returning strips, 7 clamping plates, 8 blocking strips, 9 tension springs, 10 concave plates, 11 first wire clamping ports, 12 second wire clamping ports, 13 rotating plates, 14 supporting legs and 15 abutting bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a polarization coding quantum key distribution system encoder, including encoder main part 1 and base 2, the upper surface of base 2 rotates through the carousel bearing and is connected with rotor plate 13, the last fixed surface of rotor plate 13 is connected with supporting leg 14, the upper surface of rotor plate 13 sets up threaded hole, the inner wall threaded connection of screw hole has and supports tight bolt 15, the top of supporting leg 14 and the lower fixed surface of encoder main part 1 are connected, the screw thread end that supports tight bolt 15 supports tightly with the upper surface of base 2.

Rotor plate 13 can drive encoder main part 1 and rotate, and support the setting of tight bolt 15, support tight bolt 15 and support tight base 2 and can be with the rigidity of encoder main part 1, thereby be convenient for the rotation of encoder main part 1, make things convenient for the wiring, the lower fixed surface of encoder main part 1 is connected with fixed plate 3, the side of fixed plate 3 is seted up flutedly, the inner wall sliding connection of recess has sliding plate 4, the front threaded connection of fixed plate 3 has fixing bolt 5, the counter bore of a plurality of and 5 looks adaptations of fixing bolt is seted up in the front of sliding plate 4, a plurality of counter bore is a style of calligraphy equidistance and sets up in the front of sliding plate 4.

Shape strip 6 is returned to last fixed surface of sliding plate 4, the inner wall sliding connection who returns shape strip 6 has cardboard 7, the equal fixedly connected with in front and the back of cardboard 7 blocks strip 8, the positive fixedly connected with extension spring 9 of front block strip 8, the positive fixedly connected with concave plate 10 of returning shape strip 6, the one end that blocks strip 8 and the interior antetheca fixed connection of concave plate 10 are kept away from to extension spring 9, first card line mouth 11 has been seted up to the side of cardboard 7, second card line mouth 12 has been seted up to the side of returning shape strip 6, first card line mouth 11 and second card line mouth 12 constitute by rectangle opening and semi-circular opening.

Pulling cardboard 7, cardboard 7 removes, the semicircular opening with first card line mouth 11 and second card line mouth 12 parts, can place the connecting wire between first card line mouth 11 and second card line mouth 12, not hard up cardboard 7, extension spring 9 drives cardboard 7 and removes, the cooperation is returned shape strip 6 and can be with the rigidity of connecting wire, conveniently reason the line, and fixed plate 3, sliding plate 4 and fixing bolt 5's setting, can adjust back the interval of shape strip 6 and encoder main part 1, can reserve more space and carry out dismantling of circuit, thereby make this encoder be convenient for carry out interconnecting link's dismouting.

The working principle is as follows: when using this polarization coding quantum key distribution system encoder, pulling cardboard 7, cardboard 7 removes, the semicircular opening with first card line mouth 11 and second card line mouth 12 parts, later place the connecting wire between first card line mouth 11 and second card line mouth 12, not hard up cardboard 7, extension spring 9 drives cardboard 7 and removes, the cooperation returns shape strip 6 and can be with the rigidity of connecting wire, conveniently manage the line, and fixed plate 3, sliding plate 4 and fixing bolt 5's setting, can adjust the interval of returning shape strip 6 and encoder main part 1, can reserve more space and carry out the demolising of circuit, thereby make this encoder be convenient for carry out the dismouting of interconnecting link.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A polarization encoding quantum key distribution system encoder comprises an encoder body (1) and a base (2), and is characterized in that: the lower fixed surface of encoder main part (1) is connected with fixed plate (3), the side of fixed plate (3) is seted up flutedly, the inner wall sliding connection of recess has sliding plate (4), the front threaded connection of fixed plate (3) has fixing bolt (5), the last fixed surface of sliding plate (4) is connected with back shape strip (6), the inner wall sliding connection who returns shape strip (6) has cardboard (7), the front and the equal fixedly connected with in the back of cardboard (7) stop strip (8), the front fixedly connected with extension spring (9) of front stop strip (8), the front fixedly connected with concave plate (10) of back shape strip (6), first card line mouth (11) have been seted up to the side of cardboard (7), second card line mouth (12) have been seted up to the side of returning shape strip (6).

2. A polarization encoded quantum key distribution system encoder according to claim 1, wherein: the upper surface of base (2) rotates through the carousel bearing and is connected with rotor plate (13), and the last fixed surface of rotor plate (13) is connected with supporting leg (14), and the upper surface of rotor plate (13) is seted up threaded hole, and the inner wall threaded connection of screw hole has and supports tight bolt (15).

3. A polarization encoded quantum key distribution system encoder according to claim 2, wherein: the top end of the supporting leg (14) is fixedly connected with the lower surface of the encoder main body (1), and the threaded end of the abutting bolt (15) abuts against the upper surface of the base (2).

4. A polarization encoded quantum key distribution system encoder according to claim 1, wherein: the front surface of the sliding plate (4) is provided with a plurality of counter bores matched with the fixing bolts (5), and the counter bores are arranged on the front surface of the sliding plate (4) in a straight line shape at equal intervals.

5. A polarization encoded quantum key distribution system encoder according to claim 1, wherein: one end of the tension spring (9) far away from the stop strip (8) is fixedly connected with the inner front wall of the concave plate (10).

6. A polarization encoded quantum key distribution system encoder according to claim 1, wherein: the first wire clamping port (11) and the second wire clamping port (12) are both composed of rectangular openings and semicircular openings.