Multi-line rotary laser radar device

Abstract

The utility model discloses a multi-line rotary laser radar device, which relates to the technical field of radars and comprises a base, a sleeve is fixedly mounted in the middle of the base, a connecting plate is arranged at the top end of the sleeve, and a rotating shaft is fixedly mounted at the bottom end of the connecting plate. The rotating shaft is sleeved with the sleeve and extends to the position below the base, a power source is arranged below the base, and the outer surface of the sleeve is fixedly sleeved with a signal receiver. According to the utility model, the design structure is reasonable, laser can be emitted through the signal emitter and is reflected by the reflection ring, so that an object can be detected, a reflection signal is received by the signal receiver, and meanwhile, the reflection ring can be driven to move up and down only through the lifting of the telescopic sleeve; therefore, the position of the laser during refraction can be changed, scanning in the vertical direction can be performed, and the problem that in the prior art, the radar assembly is inconvenient to lift up and down can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of radars, in particular to a multi-line rotating laser radar device. Background Art

[0002] With the development of laser technology, laser scanning technology is increasingly widely used in measurement, transportation, driving assistance, drones, mobile robots and other fields. Lidar is a radar with laser as the radiation source. It is the product of the combination of laser technology and radar technology. It consists of transmitter, antenna, receiver, tracking frame and information processing. The transmitter is a laser in various forms, such as carbon dioxide laser, neodymium-doped yttrium aluminum garnet laser, semiconductor laser and wavelength tunable solid laser.

[0003] Traditional multi-line rotating laser radars can usually only scan in one plane. In order to adjust the scanning position, the existing technology usually installs a lifting bracket on the radar assembly. Due to the large size of the assembly, it is difficult to lift it. To this end, we provide a multi-line rotating laser radar device to solve the above problems. Utility Model Content

[0004] 1) Technical issues solved

[0005] The purpose of the utility model is to remedy the deficiencies of the prior art and to provide a multi-line rotating laser radar device.

[0006] 2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-line rotating laser radar device, comprising a base, a sleeve fixedly installed in the middle of the base, a connecting plate provided at the top of the sleeve, a rotating shaft fixedly installed at the bottom of the connecting plate, the rotating shaft is sleeved inside the sleeve and extends to the bottom of the base, a power source is provided below the base, a signal receiver is fixedly sleeved on the outer surface of the sleeve, a signal transmitter is fixedly installed on the surface of the connecting plate, a telescopic sleeve is fixedly installed on the upper surface of the base, and a reflective ring is fixedly installed on the top of the telescopic sleeve.

[0008] Furthermore, a shield is threadedly connected to the outer surface of the base, a connecting plate is sleeved inside the shield, and a retaining ring is provided inside the shield below the connecting plate.

[0009] Furthermore, a support frame is provided on the inner side of the reflective ring, the support frame is sleeved on the outer surface of the sleeve, and the support frame is fixedly installed on the top end of the telescopic sleeve.

[0010] Furthermore, a signal transmission slider is fixedly installed on the top end of the signal receiver, and a signal transmission slip ring is arranged on the bottom end of the connecting plate.

[0011] Furthermore, the power source includes a gearbox, the gearbox is connected to the base via a threaded bolt, the output end of the gearbox is connected to the rotating shaft, and a motor is provided at the input end of the gearbox.

[0012] Furthermore, the signal receiver is fixedly connected to the connecting plate, and the signal receiver is rotatably connected to the sleeve.

[0013] (III) Beneficial effects:

[0014] Compared with the prior art, the multi-line rotating laser radar device has the following beneficial effects:

[0015] 1. The utility model emits laser through a signal transmitter, and reflects it through a reflection ring, so that an object can be detected, and the reflected signal is received by a signal receiver. At the same time, the reflection ring can be driven to move up and down only by lifting and lowering the telescopic sleeve, so as to change the position where the laser is refracted, and then scan in the vertical direction, thereby avoiding the problem of inconvenient up and down lifting operation of the radar assembly in the prior art.

[0016] 2. The utility model has a shield connected to the outer surface of the base through threads, and the connecting plate is sleeved inside the shield. A retaining ring is arranged inside the shield below the connecting plate. Such an arrangement can protect the internal structure and provide support. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a half-section schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection of the connection plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the base connection of the utility model;

[0020] Figure 4 It is a schematic diagram of the power source of the utility model.

[0021] In the figure: 1. base; 2. sleeve; 3. connecting plate; 4. rotating shaft; 5. power source; 6. signal receiver; 7. signal transmitter; 8. telescopic sleeve; 9. reflection ring; 10. protective cover; 11. retaining ring; 12. supporting frame; 13. signal transmission slip ring; 14. gearbox; 16. motor; 15. threaded bolt; 17. signal transmission slider. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, the utility model provides a technical solution: a multi-line rotating laser radar device, including a base 1, a sleeve 2 is fixedly installed in the middle of the base 1, a connecting plate 3 is provided at the top of the sleeve 2, a rotating shaft 4 is fixedly installed at the bottom of the connecting plate 3, the rotating shaft 4 is sleeved in the interior of the sleeve 2 and extends to the bottom of the base 1, a power source 5 is provided below the base 1, a signal receiver 6 is fixedly sleeved on the outer surface of the sleeve 2, a signal transmitter 7 is fixedly installed on the surface of the connecting plate 3, a telescopic sleeve 8 is fixedly installed on the upper surface of the base 1, and a reflective ring 9 is fixedly installed on the top of the telescopic sleeve 8.

[0024] The outer surface of the base 1 is threadedly connected with a shield 10, and the connecting plate 3 is sleeved inside the shield 10. A retaining ring 11 is arranged inside the shield 10 below the connecting plate 3. Such an arrangement can protect the internal structure and provide support.

[0025] A support frame 12 is arranged inside the reflection ring 9 , and the support frame 12 is sleeved on the outer surface of the sleeve 2 . The support frame 12 is fixedly mounted on the top of the telescopic sleeve 8 . This arrangement can support the reflection ring 9 to ensure the stability of the reflection ring 9 .

[0026] A signal transmission slider 17 is fixedly mounted on the top of the signal receiver 6, and a signal transmission slip ring 13 is arranged at the bottom of the connecting plate 3. Such an arrangement ensures that the connecting plate 3 can transmit signals while rotating relative to the signal receiver 6.

[0027] The power source includes a gearbox 14, which is connected to the base 1 via a threaded bolt 15, the output end of the gearbox 14 is connected to the rotating shaft 4, and the input end of the gearbox 14 is provided with a motor 16, which facilitates installation.

[0028] The signal receiver 6 is fixedly connected to the connecting plate 3 , and the signal receiver 6 is rotatably connected to the sleeve 2 . This arrangement enables the signal receiver 6 to rotate together with the connecting plate 3 , thereby avoiding the problem of inconvenience in signal transmission.

[0029] Working principle: The laser is emitted by the signal transmitter 7 and reflected by the reflection ring 9, so that the object can be detected. The reflected signal is received by the signal receiver 6. At the same time, the reflection ring 9 can be moved up and down only by lifting the telescopic sleeve 8, so as to change the position where the laser is refracted, and then scan in the vertical direction.

Claims

1. A multi-line rotating laser radar device, comprising a base (1), characterized in that: A sleeve (2) is fixedly mounted in the middle of the base (1), a connecting plate (3) is arranged at the top of the sleeve (2), a rotating shaft (4) is fixedly mounted at the bottom of the connecting plate (3), the rotating shaft (4) is sleeved inside the sleeve (2) and extends to the bottom of the base (1), a power source (5) is arranged below the base (1), a signal receiver (6) is fixedly sleeved on the outer surface of the sleeve (2), and a signal transmitter (7) is fixedly mounted on the surface of the connecting plate (3); A telescopic sleeve (8) is fixedly mounted on the upper surface of the base (1), and a reflective ring (9) is fixedly mounted on the top of the telescopic sleeve (8).

2. A multi-line rotating laser radar device according to claim 1, characterized in that: The outer surface of the base (1) is threadedly connected to a shield (10), the connecting plate (3) is sleeved inside the shield (10), and a retaining ring (11) is provided inside the shield (10) below the connecting plate (3).

3. The multi-line rotating laser radar device according to claim 1, characterized in that: A support frame (12) is arranged on the inner side of the reflection ring (9), the support frame (12) is sleeved on the outer surface of the sleeve (2), and the support frame (12) is fixedly mounted on the top end of the telescopic sleeve (8).

4. The multi-line rotating laser radar device according to claim 1, characterized in that: A signal transmission slider (17) is fixedly mounted on the top end of the signal receiver (6), and a signal transmission slip ring (13) is arranged on the bottom end of the connecting plate (3).

5. The multi-line rotating laser radar device according to claim 1, characterized in that: The power source comprises a gearbox (14), the gearbox (14) is connected to the base (1) via a threaded bolt (15), the output end of the gearbox (14) is connected to the rotating shaft (4), and the input end of the gearbox (14) is provided with a motor (16).

6. The multi-line rotating laser radar device according to claim 1, characterized in that: The signal receiver (6) is fixedly connected to the connecting plate (3), and the signal receiver (6) is rotatably connected to the sleeve (2).

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