Lightweight novel laser ranging device

Abstract

The invention discloses a lightweight novel laser distance measuring device, which comprises a shell and a distance measuring device body, the distance measuring device body is arranged in the shell, the distance measuring device body comprises a shell, and the shell comprises a first shell, a second shell and a shell; a transmitting cavity is formed in the first shell, and a laser module is arranged in the transmitting cavity; a mounting cavity is formed in the second shell, a supporting column and a fixing plate are arranged in the mounting cavity, and a PCB is arranged on the fixing plate; and a connecting part is arranged in the third shell and is used for mounting the fixing plate. According to the invention, the first shell, the second shell and the third shell are fixedly connected in sequence to form an ordered integral structure, and all the parts are respectively arranged in the corresponding shells, so that the functions are clearly divided, and the assembly and maintenance are convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge monitoring equipment, and specifically relates to a lightweight new laser ranging device. Background Art

[0002] As a key link connecting different regions, bridge engineering bears a large number of loads such as vehicles and pedestrians every day. Affected by factors such as the increase in service life, traffic flow, and complex environmental effects, the damage and degradation of bridge components leading to safety accidents are becoming increasingly prominent; among them, the displacement inspection and monitoring data is a key data reflecting the operating state of the bridge. Installing a health monitoring system on the components of the bridge can monitor the operating state of the bridge in real time; carrying out short-term inspection and monitoring evaluations can help understand the health state of the bridge and formulate reasonable maintenance strategies, so it has attracted increasing attention. Conventional inspection and monitoring methods operate independently for functions such as acquisition, transmission, and power supply. The wiring of the acquisition system is complex and the overall cost is high, resulting in difficulty in popularizing in small and medium-span bridges and limited measuring points in short-term inspection and monitoring of long-span bridges. There is an urgent need to develop new lightweight inspection and monitoring methods.

[0003] Existing laser ranging devices are large in volume and high in power consumption. Usually, a power supply module is required inside to supply power to the whole machine, so the cost is high. And due to the poor integration of existing laser ranging devices, it is necessary to consider the compatibility of the device in different environments. For these reasons, there is an urgent need to develop an integrated laser ranging device that can integrate power supply, reception, verification, and conversion, and is small in volume and strong in environmental adaptability. Summary of the Invention

[0004] The purpose of the present invention is to provide a lightweight new laser ranging device to solve the problem in the prior art in the background art that due to the large volume, high power consumption, and poor integration of existing laser ranging devices, the laser ranging device is inconvenient to use.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A lightweight new laser ranging device includes a housing and a ranging device body. The ranging device body is arranged inside the housing. The ranging device body includes a housing, and the housing includes a first housing, a second housing, and a third housing; wherein, the first housing, the second housing, and the third housing are fixedly connected in sequence;

[0007] An emission cavity is arranged inside the first housing, and a laser module is arranged inside the emission cavity; an installation cavity is arranged inside the second housing, and a support column and a fixing plate are arranged inside the installation cavity. The end of the support column is connected to the fixing plate, and a PCB board is arranged on the fixing plate;

[0008] Inside the third housing, a connecting portion is provided for fixing the installation of the plate. The connecting plate is fixedly connected to the fixing plate, and a connecting hole is further provided on the side wall of the third housing for connecting the ranging device body to an external device.

[0009] According to the above technical solution, sealing grooves are respectively provided at both ends of the second housing, and sealing rings are arranged inside the sealing grooves. By providing the sealing grooves and the sealing rings, the sealing performance between the first housing and the second housing, and between the second housing and the third housing is improved.

[0010] According to the above technical solution, a partition is provided inside the housing, and the interior of the housing is divided into an upper part and a lower part by the partition; wherein, the ranging device body is arranged in the lower part of the housing.

[0011] According to the above technical solution, a push rod is further provided above the housing, and both ends of the push rod are respectively connected to the housing of the ranging device body and the partition.

[0012] According to the above technical solution, an opening is provided below the housing, the ranging device body is arranged above the opening, and by the push of the push rod, the ranging device body is pushed from the inside of the housing to the outside of the housing.

[0013] According to the above technical solution, a rotating device is further provided on the partition, and the rotating device is used to drive the push rod to rotate, thereby driving the ranging device body to rotate.

[0014] According to the above technical solution, the rotating device includes a driving motor, a rotating disk and a gear set; wherein, the gear set includes a first gear and a second gear; the first gear is arranged at the output end of the driving motor, and the second gear is connected to the rotating disk; one end of the rotating disk is rotatably connected to the partition, and the other end of the rotating disk is connected to the push rod. By driving the first gear to rotate by the driving motor, the first gear meshes with the second gear, thereby driving the rotating disk to rotate.

[0015] According to the above technical solution, a storage battery is provided in the upper part of the housing, and the storage battery is electrically connected to the ranging device body, and the storage battery is used to supply power to the ranging device body.

[0016] According to the above technical solution, a ranging hole is further provided on the housing, and the ranging hole is used for the ranging of the laser module.

[0017] According to the above technical solution, a solar power generation device is further provided above the housing, and the solar device is used to charge the storage battery.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the present invention, by fixedly connecting the first housing, the second housing, and the third housing in sequence, an orderly overall structure is formed. Each component is respectively arranged in the corresponding housing, achieving clear functional partitioning and facilitating assembly and maintenance. The emission cavity is arranged in the first housing and is specifically used for arranging the laser module; the installation cavity of the second housing is used for placing the support column, the fixing plate, and the PCB board; the third housing installs the fixing plate through the connecting part. Each part cooperates with each other, and the overall structure is compact, facilitating installation and operation.

[0020] A connection hole is arranged on the side wall of the third housing for connecting the ranging device body with an external device, enabling the laser ranging device to be conveniently integrated with other systems, meeting the usage requirements in different scenarios, and improving the versatility and practicality of the device. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of the ranging device of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of the ranging device of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the solar power generation device of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the ranging device body of the present invention;

[0025] Figure 5 It is a schematic diagram of the partial enlarged structure at A of the present invention.

[0026] Reference numerals in the drawings: 100 - housing, 200 - ranging device body, 300 - first housing, 400 - second housing, 500 - third housing, 600 - emission cavity, 700 - laser module, 800 - installation cavity, 900 - support column, 110 - fixing plate, 111 - PCB board, 112 - connecting part, 113 - connection hole, 114 - sealing groove, 115 - partition board, 116 - upper part, 117 - lower part, 118 - push rod, 119 - opening, 120 - driving motor, 121 - first gear, 122 - second gear, 123 - rotating disk, 124 - storage battery, 125 - ranging hole, 126 - installation frame, 127 - solar panel, 128 - base, 129 - support rod, 130 - installation column, 131 - rotating motor, 132 - third gear, 133 - toothed ring, 134 - adjusting motor, 135 - installation box, 136 - fourth gear, 137 - rack. Detailed Embodiments

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] As Figure 1 and Figure 4 shown, a lightweight new laser ranging device includes a housing 100 and a ranging device body 200. The ranging device body 200 is arranged inside the housing 100. The ranging device body 200 includes a housing, and the housing includes a first housing 300, a second housing 400, and a third housing 500. Among them, the first housing 300, the second housing 400, and the third housing 500 are fixedly connected in sequence.

[0030] As Figure 5 shown, a transmitting cavity 600 is arranged inside the first housing 300, and a laser module 700 is arranged inside the transmitting cavity 600. An installation cavity 800 is arranged inside the second housing 400, and a support column 900 and a fixing plate 110 are arranged inside the installation cavity 800. Among them, the end of the support column 900 is connected to the fixing plate 110, and a PCB board 111 is arranged on the fixing plate 110.

[0031] As Figure 5 shown, a connecting portion 112 is arranged inside the third housing 500, and the connecting portion 112 is used for the installation of the fixing plate 110. The connecting plate is fixedly connected to the fixing plate 110, and a connecting hole 113 is further arranged on the side wall of the third housing 500. The connecting hole 113 is used for the connection between the ranging device body 200 and an external device.

[0032] In the present invention, by fixedly connecting the first housing 300, the second housing 400, and the third housing 500 in sequence, an orderly overall structure is formed, and each component is respectively arranged in the corresponding housing, realizing clear functional partitioning, which is convenient for assembly and maintenance. The transmitting cavity 600 is arranged in the first housing 300 and is specifically used for arranging the laser module 700. The installation cavity 800 of the second housing 400 is used for placing the support column 900, the fixing plate 110, and the PCB board. The third housing 500 installs the fixing plate 110 through the connecting portion 112, and each part cooperates with each other, and the overall structure is compact, which is convenient for installation and operation.

[0033] A connecting hole 113 is arranged on the side wall of the third housing 500 for connecting the ranging device body 200 with an external device, so that the laser ranging device can be conveniently integrated with other systems, meet the usage requirements in different scenarios, and improve the versatility and practicality of the device.

[0034] In the present invention, in order to achieve the light weight of the ranging device body 200, the housing is manufactured by 3D printing technology, which significantly reduces the weight while ensuring the performance. Moreover, the storage battery 124 for power supply is transferred to the interior of the outer shell 100, further reducing the weight of the ranging device body 200 and facilitating the use of the ranging device body 200.

[0035] Embodiment 2

[0036] This embodiment provides a specific implementation method:

[0037] 1. For the lightweight monitoring of medium and small-span bridges:

[0038] For medium and small-span bridges, the focus is on the displacement at the beam ends, the deflection at the mid-span of the main beam, and the strain. The present invention can monitor the displacement at the beam ends and cooperate with the steel support to monitor the deflection at the mid-span of the main beam, avoiding a large amount of power supply and signal transmission wiring. In cooperation with the measurement of the main beam strain, a lightweight monitoring system for medium and small-span bridges can be formed, facilitating the rapid assessment of the bearing capacity of the bridge.

[0039] 2. For the monitoring during the jacking construction of bearing replacement

[0040] During the construction of bridge bearing replacement, it is necessary to monitor the vertical jacking and longitudinal and transverse displacements of the main beam to prevent accidents such as excessive jacking from affecting the structural safety and causing damage to personnel and property. Using the present invention, the measuring points can be easily arranged. The laser displacement sensor avoids the installation difficulties caused by the contact installation of the traditional thimble-type sensor, and the wireless transmission avoids a large number of wire arrangements on site, effectively preventing the interference caused by the disturbance of the wires by on-site workers.

[0041] 3. For the local refined inspection and monitoring of bridge components

[0042] There are a large number of measuring points on the bridge structure that are difficult to reach and install sensors, such as the lateral relative displacement of the lateral wind-resistant bearings of long-span cable-supported bridges and the weight deformation of large-displacement modular expansion joints. It is very difficult to install and wire traditional displacement sensors, and it is difficult to measure them precisely. Using the present invention, the corresponding refined inspection and monitoring can be carried out.

[0043] This embodiment is a further refinement of Embodiment 1: Sealing grooves 114 are respectively arranged at both ends of the second outer shell 100, and sealing rings are arranged inside the sealing grooves 114. By setting the sealing grooves 114 and the sealing rings, the sealing performance between the first housing 300 and the second housing 400, and between the second housing 400 and the third housing 500 is improved.

[0044] Inside the housing 100, a partition 115 is provided, which divides the interior of the housing 100 into an upper part 116 and a lower part 117. Among them, the ranging device body 200 is arranged in the lower part 117 of the housing 100.

[0045] Above the housing, a push rod 118 is also provided. Both ends of the push rod 118 are respectively connected to the housing of the ranging device body 200 and the partition 115.

[0046] An opening 119 is provided below the housing 100. The ranging device body 200 is arranged above the opening 119 and is pushed from the inside of the housing 100 to the outside of the housing 100 by the push of the push rod 118.

[0047] A rotating device is also provided on the partition 115. The rotating device is used to drive the push rod 118 to rotate, thereby driving the ranging device body 200 to rotate.

[0048] The rotating device includes a driving motor 120, a rotating disk 123, and a gear set. Among them, the gear set includes a first gear 121 and a second gear 122. The first gear 121 is arranged at the output end of the driving motor 120, and the second gear 122 is connected to the rotating disk 123. One end of the rotating disk 123 is rotatably connected to the partition 115, and the other end of the rotating disk 123 is connected to the push rod 118. By driving the first gear 121 to rotate by the driving motor 120, the first gear 121 meshes with the second gear 122, thereby driving the rotating disk 123 to rotate.

[0049] A storage battery 124 is provided in the upper part 116 of the housing 100. The storage battery 124 is electrically connected to the ranging device body 200, and the storage battery 124 is used to supply power to the ranging device body 200.

[0050] A ranging hole 125 is also provided on the housing 100. The ranging hole 125 is used for the ranging of the laser module 700.

[0051] A solar power generation device is also provided above the housing 100. The solar device is used to charge the storage battery 124.

[0052] Embodiment III

[0053] This embodiment provides a specific implementation manner. Since the laser ranging device in the present invention is used to monitor the displacement of a bridge, a receiving device needs to be provided on the bridge to reflect the laser emitted by the laser module 700 in the laser ranging device.

[0054] In the prior art, the displacement of a bridge is detected by respectively arranging a laser ranging device and a receiving device on two sections of the bridge. However, such a measurement method has a significant flaw, that is, when the two sections of the bridge move in the same direction together, the displacement of the bridge cannot be accurately measured, and thus an alarm cannot be issued in a timely manner.

[0055] Therefore, in the present invention, at least two receiving devices are provided. One receiving device is arranged on an adjacent bridge section on the same horizontal line as the laser ranging device, and the other receiving device is arranged on the bridge section of an adjacent lane, and the two receiving devices are on the same horizontal line.

[0056] As Figure 2 shown, the push rod 118 is used to push the ranging device body 200 downward. The ranging device body 200 emits laser to the receiving device. The receiving device is used to receive the laser emitted by the ranging device body 200 and send the data to the processing terminal for processing. The rotation device is used to drive the ranging device body 200 to rotate, so that the ranging device body 200 also emits laser to the other receiving device. The processing terminal processes the data returned by the two receiving devices and compares them with the recorded data to determine whether the bridge has displaced, so as to improve the accuracy of bridge monitoring.

[0057] In another embodiment, since the ranging device body 200 is generally arranged below the bridge, and there is generally strong crosswind below the bridge, and the strong crosswind will pose a threat to the monitoring of the ranging device body 200. Therefore, a housing 100 is arranged outside the ranging device body 200, and the push rod 118 is used to drive the ranging device body 200 to move up and down, so as to accommodate the ranging device body 200 inside the housing 100 to avoid the interference of extreme environments and improve the service life of the ranging device body 200.

[0058] In another embodiment, in order to stably store energy for the battery 124, a solar power generation device is arranged above the housing 100.

[0059] As Figure 3 shown, the solar power generation device includes a mounting frame 126, a solar panel 127 and a base 128. Among them, the solar panel 127 is arranged on the mounting frame 126. The mounting frame 126 is rotatably connected to the base 128. A rotating assembly is arranged below the base 128, and a supporting assembly is also arranged on the base 128. Among them, the rotating assembly is used to adjust the position of the solar panel 127, and the supporting assembly is used to adjust the angle of the solar panel 127.

[0060] This embodiment provides a specific implementation of a rotating component: The rotating component includes a support rod 129, a mounting post 130, and a rotating motor 131. Among them, the lower end of the support rod 129 is fixedly connected to the partition 115, and a mounting post 130 is sleeved outside the support rod 129. The mounting post 130 is fixedly connected to the support rod 129, and the bottom plate is rotatably connected to the mounting post 130. A rotating motor 131 is fixedly arranged on the mounting post 130, and a third gear 132 is arranged at the output end of the rotating motor 131. A toothed ring 133 meshing with the third gear 132 is arranged below the base 128. By driving the third gear 132 to rotate through the rotating motor 131, the third gear 132 meshes with the toothed ring 133, driving the base 128 to rotate around the mounting post 130, thereby adjusting the position of the solar panel 127.

[0061] Further, one end of the mounting post 130 is fixedly connected to the support rod 129 (for example, by screw connection). The other end of the mounting post 130 is connected to the bottom plate. A connecting column is arranged at the lower end of the bottom plate, and the connecting column extends into the interior of the mounting post 130. A bearing is arranged inside the mounting post 130, and the mounting post 130 is rotatably connected to the connecting column through the bearing.

[0062] This embodiment provides a specific implementation of a support component: The support component includes an adjustment motor 134, a mounting box 135, a fourth gear 136, and a rack 137. Among them, the mounting is rotatably installed on the base 128, the adjustment motor 134 is fixedly arranged on the base 128, and a fourth gear 136 is arranged at the output end of the adjustment motor 134. The fourth gear 136 is arranged inside the mounting box 135. One end of the rack 137 is rotatably connected to the mounting frame 126, and the other end of the rack 137 extends into the interior of the mounting box 135 and meshes with the fourth gear 136.

[0063] By driving the fourth gear 136 to rotate through the adjustment motor 134, the fourth gear 136 meshes with the rack 137, thereby driving the rack 137 to move. By moving the rack 137, the angle of the mounting frame 126 is adjusted, thereby completing the angle adjustment of the solar panel 127.

[0064] This embodiment also provides another implementation of the support component. The support component can also use a hydraulic cylinder or an electric push rod 118 to complete the angle adjustment of the mounting frame 126.

[0065] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0066] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A novel lightweight laser distance measuring device, comprising a housing (100) and a distance measuring device body (200), wherein the distance measuring device body (200) is arranged inside the housing (100), and is characterized in that: The distance measuring device body (200) comprises a shell, and the shell comprises a first shell (300), a second shell (400) and a third shell (500); wherein the first shell (300), the second shell (400) and the third shell (500) are fixedly connected in sequence; An emission chamber (600) is arranged inside the first housing (300), and a laser module (700) is arranged inside the emission chamber (600); an installation chamber (800) is arranged inside the second housing (400), and a support column (900) and a fixing plate (110) are arranged inside the installation chamber (800), wherein the end of the support column (900) is connected to the fixing plate (110), and a PCB board (111) is arranged on the fixing plate (110); A connecting portion (112) is provided inside the third housing (500), and the connecting portion (112) is used for installing the fixing plate (110); the connecting plate is fixedly connected to the fixing plate (110), and a connecting hole (113) is also provided on the side wall of the third housing (500), and the connecting hole (113) is used for connecting the distance measuring device body (200) with an external device.

2. A novel lightweight laser distance measuring device according to claim 1, characterized in that: Sealing grooves (114) are respectively provided at both ends of the second housing (100), and sealing rings are provided inside the sealing grooves (114). The sealing grooves (114) and the sealing rings are provided to improve the sealing performance between the first housing (300) and the second housing (400), and between the second housing (400) and the third housing (500).

3. A novel lightweight laser distance measuring device according to claim 2, characterized in that: A partition (115) is arranged inside the housing (100), and the partition (115) divides the interior of the housing (100) into an upper part (116) and a lower part (117); wherein the distance measuring device body (200) is arranged in the lower part (117) of the housing (100).

4. A novel lightweight laser distance measuring device according to claim 3, characterized in that: A push rod (118) is also arranged above the shell, and two ends of the push rod (118) are respectively connected to the shell of the distance measuring device body (200) and the partition plate (115).

5. A novel lightweight laser distance measuring device according to claim 4, characterized in that: An opening (119) is provided below the housing (100), and a distance measuring device body (200) is provided above the opening (119). The distance measuring device body (200) is pushed from the inside of the housing (100) to the outside of the housing (100) by a push rod (118).

6. A novel lightweight laser distance measuring device according to claim 5, characterized in that: A rotating device is also provided on the partition plate (115), and the rotating device is used to drive the push rod (118) to rotate, thereby driving the distance measuring device body (200) to rotate.

7. A novel lightweight laser distance measuring device according to claim 6, characterized in that: The rotating device comprises a driving motor (120), a rotating disk (123) and a gear set; wherein the gear set comprises a first gear (121) and a second gear (122); the first gear (121) is arranged at the output end of the driving motor (120), and the second gear (122) is connected to the rotating disk (123); one end of the rotating disk (123) is rotatably connected to the partition (115), and the other end of the rotating disk (123) is connected to the push rod (118); the first gear (121) is driven to rotate by the driving motor (120), and the first gear (121) is meshed with the second gear (122), thereby driving the rotating disk (123) to rotate.

8. A novel lightweight laser distance measuring device according to claim 7, characterized in that: A storage battery (124) is arranged on the upper part (116) of the housing (100); the storage battery (124) is electrically connected to the distance measuring device body (200); and the storage battery (124) is used to supply power to the distance measuring device body (200).

9. A novel lightweight laser distance measuring device according to claim 8, characterized in that: A distance measuring hole (125) is also provided on the housing (100), and the distance measuring hole (125) is used for distance measuring of the laser module (700).

10. A novel lightweight laser distance measuring device according to claim 9, characterized in that: A solar power generation device is also provided above the housing (100), and the solar power generation device is used to charge the storage battery (124).

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