CN215986548U

CN215986548U - Gate machine

Info

Publication number: CN215986548U
Application number: CN202122121617.7U
Authority: CN
Inventors: 徐银辉; 丁乃英
Original assignee: Zhejiang Dahua Technology Co Ltd
Current assignee: Zhejiang Dahua Technology Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-03-08
Anticipated expiration: 2031-09-03

Abstract

The utility model relates to the technical field of gates, and discloses a gate machine, which comprises: the device comprises a first fixing structure, a second fixing structure, a transmitting end and a receiving end, wherein the first fixing structure and the second fixing structure are arranged along a first direction; the transmitting end is lower than the receiving end and is used for transmitting infrared beams to the receiving end; the receiving end is used for receiving the infrared light beams, and the upper boundary of the light receiving range of the receiving end is parallel to the horizontal plane or inclines downwards. Because the upper boundary of the light receiving range of the receiving end is parallel to the horizontal plane or inclines downwards, all lights shot downwards are shielded by the receiving end, and the problem of receiving saturation caused by the fact that external lights such as sunlight with a flat height angle smaller than the half angle of the receiving light beam of the receiving end enter the receiving end is avoided.

Description

Gate machine

Technical Field

The utility model relates to the technical field of gates, in particular to a gate machine.

Background

In public places such as office buildings, stations, hospitals and the like, gate machines are generally arranged so as to allow passing personnel to pass after the passing personnel are authenticated.

The floodgate machine is equipped with infrared correlation subassembly and judges whether someone gets into wherein, and infrared correlation subassembly is including setting up transmitting terminal and the receiving terminal on two spud piles respectively, and between people's entering transmitting terminal and the receiving terminal, infrared transmission between the two is blockked, and the floodgate machine detects someone and gets into.

In the conventional design, the emitting end and the receiving end are at the same height and are horizontally arranged, and the receiving end has a certain receiving beam angle in the actual use state, and light rays in the receiving beam angle range can enter the receiving end. Sunlight with a horizontal height angle smaller than the half angle of a receiving beam of the receiving end easily enters the receiving end, so that the photoelectric effect of the receiving end is excessive, and the phenomenon that the receiving end cannot continue to work due to receiving saturation occurs; other light rays having this angle of incidence also cause similar interference.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a gate which is used for relieving the problem that excessive external light enters a receiving end to cause the receiving end to be saturated and cannot work continuously.

In order to achieve the purpose, the utility model provides the following technical scheme:

a gate, comprising: the device comprises a first fixing structure, a second fixing structure, a transmitting end and a receiving end, wherein the first fixing structure and the second fixing structure are arranged along a first direction, the transmitting end is arranged on the first fixing structure, the receiving end is arranged on the second fixing structure, the transmitting end and the receiving end are arranged in opposite directions, and the first direction is parallel to a horizontal plane; the transmitting end is lower than the receiving end and is used for transmitting infrared beams to the receiving end; the receiving end is used for receiving the infrared light beams, and the upper boundary of the light receiving range of the receiving end is parallel to the horizontal plane or inclines downwards.

In the gate, the upper boundary of the light receiving range of the receiving end is parallel to the horizontal plane or inclines downwards, so that all incident light rays are shielded by the receiving end, and the problem of receiving saturation caused by the fact that external light rays such as sunlight with a flat height angle smaller than the half angle of a receiving light beam of the receiving end enter the receiving end is avoided; the position of the transmitting end is lower than that of the receiving end, the transmitting end and the receiving end are arranged oppositely, the infrared light beams transmitted by the transmitting end can normally enter the receiving end to be absorbed by the receiving end and cannot be shielded, and therefore whether a person enters the infrared light beams can be normally detected.

Optionally, the transmitting end can slide up and down relative to the first fixed structure; and/or the receiving end can slide up and down relative to the second fixing structure.

Optionally, the emitting end comprises a first housing and a light emitting device located in the first housing, the light emitting device being rotatable relative to the first fixed structure about a first axis, the first axis being parallel to the horizontal plane and perpendicular to the first direction; and/or the receiving end comprises a second shell and a light receiving device positioned in the second shell, and the light receiving device can rotate around a second axis relative to the second fixed structure, wherein the second axis is parallel to the horizontal plane and is perpendicular to the first direction.

Optionally, the light emitting device is fixed with the first housing for common rotation about the first axis; and/or the light receiving device is fixed with the second shell to rotate around the second axis together.

Optionally, the first housing is fixed with the first fixing structure, and the light emitting device rotates relative to the first housing; and/or the second shell is fixed with the second fixing structure, and the light receiving device rotates relative to the second shell.

Optionally, a central axis of the light emitting range of the emitting end coincides with a central axis of the light receiving range of the receiving end.

Optionally, a height difference between the transmitting end and the receiving end is proportional to a horizontal distance between the transmitting end and the receiving end.

Optionally, the receiving beam angle of the receiving end is between 4 ° and 12 °.

Drawings

Fig. 1 is a schematic structural diagram of a gate issuing machine according to an embodiment of the present application.

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, a gate provided in an embodiment of the present application includes: first fixed knot constructs 3, second fixed knot constructs 4 and infrared correlation subassembly, and infrared correlation subassembly includes: the device comprises a transmitting end 1 and a receiving end 2, wherein a first fixing structure 3 and a second fixing structure 4 are arranged along a first direction (which can refer to the direction of an x axis), the transmitting end 1 is arranged on the first fixing structure 3, the receiving end 2 is arranged on the second fixing structure 4, the transmitting end 1 and the receiving end 2 are arranged oppositely, and the first direction is parallel to a horizontal plane; the position of the transmitting end 1 is lower than that of the receiving end 2, specifically, the light outlet of the transmitting end 1 is lower than the light inlet of the receiving end 2, and is used for transmitting infrared light beams to the receiving end 2; the receiving end 2 is used for receiving the infrared light beam, and the receiving end 2 has a diffusion-shaped light receiving range, and the light receiving range has a first upper boundary P1 (or an upper boundary of the light receiving range) and a first lower boundary P2; the first upper boundary P1 is parallel to the horizontal plane or inclined downward in the direction from the receiving end 2 to the transmitting end 1. The included angle between the first upper boundary P1 and the first lower boundary P2 forms a received beam angle; the symmetry axis of the first upper boundary P1 and the first lower boundary P2 is referred to as a central axis P3 of the light receiving range of the receiving end 2. Similarly, the emission terminal 1 has a diffusion-like light emission range having a second upper boundary P4 and a second lower boundary P5, the angle between the second upper boundary P4 and the second lower boundary P5 forming an emission beam angle; the symmetry axis of the second upper boundary P4 and the second lower boundary P5 is referred to as a central axis P6 of the light emission range of the emission end 1. When the central axis P6 of the light emitting range of the emitting terminal 1 coincides with the central axis P3 of the light receiving range of the receiving terminal 2, the infrared light beam emitted from the emitting terminal 1 can enter the receiving terminal 2 to the maximum extent, so as to improve the sensitivity of the receiving terminal 2 and rapidly open and close the gate. The receiving beam angle of the receiving end 2 is between 4 ° and 12 °, so that the influence of external light such as sunlight on the receiving end 2 is reduced, and the angle range can be between 4 ° and 7 ° under the condition that the receiving end 2 can stably receive the infrared beam of the transmitting end 1.

Wherein, the first fixing structure 3 and the second fixing structure 4 can be fixing piles, and each fixing pile is provided with a space for accommodating the gate; when the infrared correlation assembly detects that no person exists between the first fixing structure 3 and the second fixing structure 4, the gates in the first fixing structure 3 and the second fixing structure 4 can fan out, and shielding is formed between the first fixing structure 3 and the second fixing structure 4; when the infrared correlation subassembly detects that someone enters between first fixed knot constructs 3 and second fixed knot constructs 4, pass through personnel and pass through face identification or the verification of punching the card after, open the gate, if not verify in certain time then the alarm sends the warning.

Because the first upper boundary P1 of the light receiving range of the receiving end 2 is parallel to the horizontal plane or inclined downwards along the direction from the receiving end 2 to the transmitting end 1, all the incident light rays are shielded by the receiving end 2, and the problem of receiving saturation caused by the fact that external light rays such as sunlight with a flat height angle smaller than the half angle of the receiving beam of the receiving end 2 enter the receiving end 2 is avoided; the position of the transmitting end 1 is lower than that of the receiving end 2, the transmitting end 1 is bent, and the receiving end 2 is bent, so that the transmitting end 1 and the receiving end 2 are oppositely arranged, the infrared light beam transmitted by the transmitting end 1 can normally enter the receiving end 2 to be absorbed by the receiving end 2 and cannot be shielded, and therefore whether a person enters the infrared light beam detector can be normally detected.

Referring specifically to fig. 1, the first fixing structures 3 and the second fixing structures 4 are arranged at intervals along the x-axis direction, and the distance between the first fixing structures 3 and the second fixing structures 4 may be between 06m and 2m according to a specific installation environment, for example, the distance between the first fixing structures 3 and the second fixing structures 4 is 0.6m when the first fixing structures 3 are located at the first position S1; the first fixed structure 3 is located at the second position S2 by a distance of 2 m.

In a specific embodiment, the emitting end 1 can slide up and down in the z-axis direction with respect to the first fixed structure 3; when the first fixing structure 3 is at the first position S1, the central axis P6 of the light emitting range of the emitting end 1 can coincide with the central axis P3 of the light receiving range of the receiving end 2, and when the first fixing structure 3 is adjusted to the second position S2, the light emitted by the emitting end 1 is difficult to enter into the receiving end 2, or even impossible to enter into the receiving end 2, at this time, the central axis P6 of the light emitting range of the emitting end 1 can move downwards along the z-axis to coincide with the central axis P3 of the light receiving range of the receiving end 2 again, and the infrared rays emitted by the emitting end 1 can enter into the receiving end 2 to a greater extent.

In order to keep the central axis P3 and the central axis P6 coincident, the height difference between the transmitting end 1 and the receiving end 2 (denoted as H) is proportional to the horizontal distance between the transmitting end 1 and the receiving end 2 (denoted as L) at a certain inclination angle. Specifically, when the optical fiber is installed, the first upper boundary P1 is parallel to the horizontal plane, but due to errors such as structural tolerance, hardware tolerance, and installation process tolerance, a system integrated deviation angle Theta is caused, the receiving beam angle of the receiving end 2 is denoted as Alfa, and the height difference H between the transmitting end 1 and the receiving end 2 is L tan (Theta + Alfa).

Specifically, the launching end 1 is driven to slide up and down relative to the first fixing structure 3 by a linear driving member, which may be a rack driven by a motor through a gear, or may be an air cylinder.

Similarly, the receiving end 2 can also slide up and down relative to the second fixed structure 4. It is also possible that the transmitting end 1 is slidable up and down with respect to the first fixed structure 3 and that the receiving end 2 is also slidable up and down with respect to the second fixed structure 4.

In a specific embodiment, the emitting terminal 1 includes a first housing 11 and a light emitting device 12 located in the first housing 11, the light emitting device 12 may be an LED lamp; the light emitting device 12 is rotatable with respect to the first fixed structure 3 about a first axis T1; the first axis T1 is parallel to the horizontal plane and perpendicular to the first direction. So that the central axis P6 of the light emitting range of the emitting terminal 1 can be made to coincide again with the central axis P3 of the light receiving range of the receiving terminal 2 by adjusting the elevation angle of the light emitting device 12 when the distance between the first fixing structure 3 and the second fixing structure 4 is changed.

Specifically, the light emitting device 12 may be fixed to the first housing 11 so that the light emitting device 12 and the first housing 11 rotate together about the first axis T1, and thus, the light emitting device 12 may be driven to rotate only by the rotation of the first housing 11 without providing a minute driving mechanism, reducing the difficulty of manufacturing. Or, the first housing 11 and the first fixing structure 3 may be fixed, and the light emitting device 12 rotates relative to the first housing 11, so that the light emitting device 12 may be driven by a smaller driving mechanism, and when the light emitting device 12 is mounted on a carrier such as a carrier plate, the carrier is rotatably connected to the first housing 11, and at this time, a micro fine motor may be selected for accuracy of a rotation angle of the light emitting device 12. In the above, the driving mechanism can be a motor and a gear.

Similarly, the receiving end 2 includes a second housing 21 and a light receiving device 22 located in the second housing 21, and the light receiving device 22 may be a photodiode; the light receiving device 22 is rotatable about a second axis T2 with respect to the second fixed structure 4; the second axis T2 is parallel to the horizontal plane and perpendicular to the first direction. The light receiving device 22 is fixed to the second housing 21 to rotate together about the second axis T2. Alternatively, the second housing 21 is fixed to the second fixing structure 4, and the light receiving device 22 is rotated with respect to the second housing 21. Advantageous effects of the light receiving device 22 being rotatable about the second axis T2 can be referred to the effect of the light emitting device 12 being rotatable about the first axis T1.

In one particular embodiment, one of the light emitting device 12 and the light receiving device 22 may be held rotatable to ensure that one of the angles is fixed, to ensure that the angle does not change during long term use, and that the light emitting device 12 may be accurately inserted into the light receiving device 22. It is also possible to keep both the light emitting device 12 and the light receiving device 22 rotatable.

In one particular embodiment, only one of the light emitting device 12 and the light receiving device 22 remains liftable to reduce the possibility of height emission variations during use, ensuring that the light emitting device 12 can be accurately introduced into the light receiving device 22 for an extended period of time. It is also possible to keep both the light emitting device 12 and the light receiving device 22 liftable.

In a specific embodiment, one of the light emitting device 12 and the light receiving device 22 is lifted and lowered, and one of the light emitting device 12 and the light receiving device 22 is rotated, only one scheme may be remained to maintain the operational stability of the gate.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A gate, comprising: the device comprises a first fixing structure, a second fixing structure, a transmitting end and a receiving end, wherein the first fixing structure and the second fixing structure are arranged along a first direction, the transmitting end is arranged on the first fixing structure, the receiving end is arranged on the second fixing structure, the transmitting end and the receiving end are arranged in opposite directions, and the first direction is parallel to a horizontal plane;

the transmitting end is lower than the receiving end and is used for transmitting infrared beams to the receiving end;

the receiving end is used for receiving the infrared light beams, and the upper boundary of the light receiving range of the receiving end is parallel to the horizontal plane or inclines downwards.

2. The gate of claim 1, wherein said emitter end is slidable up and down relative to said first fixed structure; and/or the receiving end can slide up and down relative to the second fixing structure.

3. The gate of claim 1, wherein the emitting end comprises a first housing and a light emitting device within the first housing, the light emitting device being rotatable relative to the first fixed structure about a first axis, the first axis being parallel to the horizontal plane and perpendicular to the first direction; and/or the presence of a gas in the gas,

the receiving end comprises a second shell and a light receiving device positioned in the second shell, and the light receiving device can rotate around a second axis relative to the second fixed structure, wherein the second axis is parallel to the horizontal plane and is perpendicular to the first direction.

4. The gate of claim 3, wherein said light emitting device is fixed with said first housing for common rotation about said first axis; and/or the presence of a gas in the gas,

the light receiving device is fixed with the second shell to rotate around the second axis together.

5. The gate of claim 3, wherein the first housing is fixed with the first fixed structure, the light emitting device rotating relative to the first housing; and/or the presence of a gas in the gas,

the second housing is fixed to the second fixing structure, and the light receiving device rotates relative to the second housing.

6. The gate of claim 1, wherein a central axis of a light emitting range of the emitting end coincides with a central axis of a light receiving range of the receiving end.

7. The gate of claim 6, wherein the height difference between said transmitting end and said receiving end is proportional to the horizontal distance between said transmitting end and said receiving end.

8. The gate of claim 1, wherein the receiving beam angle at the receiving end is between 4 ° and 12 °.