Optical detection device protection structure

Abstract

The utility model discloses an optical detection device protection structure, which belongs to the technical field of optical detection device protection and comprises a protection assembly, the protection assembly at least comprises a protection shell and a protection window arranged at the top of the protection shell, and the protection shell is provided with a cleaning assembly on one side of the protection window. By arranging the protection assembly and the cleaning assembly, in the using process of the optical detection device, the air inlet is connected with an external air supply pipeline, high-pressure air enters the air channel through the air inlet and is sprayed out from the air cavity, and the high-pressure air forms sheet jet flow from the air blowing opening through shielding of the top cover and is sprayed to the surface of the protection window; the other beam of air flow is sprayed out from the air blowing hole of the top cover and directly blows the detected workpiece, and oil mist or water vapor on the outer side of the protective window and at the detected workpiece is blown away through high-pressure air blowing, so that the situation that the oil mist or water vapor shields the protective window and the detected workpiece to cause detection misalignment of the optical detection device is avoided, and normal work of the optical detection device is guaranteed; therefore, the accuracy of measurement results is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection device protection, in particular to an optical detection device protection structure. Background Art

[0002] A laser rangefinder is an instrument that uses a certain parameter of modulated laser to measure the distance to a target. It is divided into a phase rangefinder and a pulse rangefinder according to the distance measurement method.

[0003] Chinese patent publication number CN217766828U discloses a laser rangefinder lens protection window. By setting a protection window on the shell, the lens can be separated from the external environment to prevent the lens from being contaminated by dust impurities in the air, thereby improving the accuracy of long-term measurement of the laser rangefinder and avoiding threats to the safety of on-site workers.

[0004] However, compared with the existing technology and comparative documents, the existing laser rangefinder receives and sends measurement signals through the signal transceiver on the top and is protected by glass. During use, the glass surface, the workpiece being inspected and its surroundings are easily blocked by pollutants such as oil mist, water vapor and dust due to the processing working environment, resulting in inaccurate detection of the laser rangefinder, inability to work normally, and reducing the accuracy of the measurement results. Utility Model Content

[0005] The main purpose of the utility model is to provide a protective structure for an optical detection device, so as to solve the technical problem in the prior art regarding the influence of pollution such as dust and water mist on the optical detection device.

[0006] The purpose of the utility model can be achieved by adopting the following technical scheme: a protective structure of an optical detection device, including a protective component, the protective component at least including a protective shell and a protective window arranged on the top of the protective shell, the protective shell is provided with a cleaning component on one side of the protective window, the cleaning component is respectively provided with a blowing port for blowing toward the protective window and a blowing hole for blowing toward the workpiece to be measured, the blowing port and the blowing hole are connected to each other and are provided with an air inlet for connecting to an external pipeline.

[0007] Furthermore, an air delivery channel is provided between the air port and the air hole connected to the air inlet, the air delivery channel includes an air cavity and an air duct, the air port is connected and arranged on one side of the air cavity, the air port faces the protective window; a top cover is provided on the top of the air cavity, the air hole is opened in the middle of the top end of the top cover; the air duct is connected to the air cavity, the air inlet is connected to the air duct, and the air inlet is arranged on the outside of the protective shell.

[0008] Furthermore, the top of the air cavity is an inclined structure, and the top cover is arranged to cover the top of the air cavity in an inclined manner.

[0009] Furthermore, the size of the blowing port is smaller than the size of the air cavity.

[0010] Furthermore, a mounting groove is provided on the top of the protective shell, and the protective window is arranged in the mounting groove.

[0011] Furthermore, the protective shell is provided with a limiting component on one side of the air inlet.

[0012] Furthermore, the limit assembly includes a slide groove opened on the protective shell, a piston seat is slidably connected in the slide groove, and a sealing structure is provided between the piston seat and the slide groove, and the slide groove and the piston seat are both H-shaped structures.

[0013] Furthermore, a placement cavity is provided in the protective shell, and the placement cavity is communicated with the protective window.

[0014] Furthermore, the placement cavity is covered with a sealing cover, and the sealing cover is bonded to the protective shell.

[0015] Furthermore, the protective shell is installed with a waterproof plug, and the protective shell is provided with a through groove for connecting the waterproof plug.

[0016] The beneficial technical effects are:

[0017] 1. By setting up the protection component and the cleaning component, during the use of the optical detection device, the air inlet is connected to the external air supply pipeline, and the high-pressure gas enters the airway through the air inlet and sprays out from the air cavity. The top cover blocks it and guides it to spray from the blowing port to the surface of the protective window, while another air flow is sprayed from the blowing hole of the top cover and directly blows the workpiece to be measured. The oil mist or water vapor at the protective window and the workpiece to be measured is blown away by the high-pressure gas, so as to avoid blocking the optical path of the protective window and the workpiece to be measured, thereby preventing the optical detection device from being inaccurate, ensuring the normal detection work of the optical detection device, and thus improving the accuracy of the measurement result;

[0018] 2. By setting a limit assembly, when high-pressure gas enters the air inlet, the pressure generated by the high-pressure gas can cause the piston seat to move along the slide groove, and one end of the piston seat can be against the protective assembly, thereby ensuring the stability of the optical detection device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a preferred embodiment of a protective shell of an optical detection device according to the utility model;

[0020] Figure 2 It is a right sectional view of a preferred embodiment of a protective shell of an optical detection device according to the utility model;

[0021] Figure 3 A top sectional view of a preferred embodiment of a protective shell for an optical detection device according to the utility model;

[0022] Figure 4 A bottom sectional view of a preferred embodiment of a protective shell for an optical detection device according to the utility model;

[0023] Figure 5 It is a main cross-sectional view of a preferred embodiment of a protective shell for an optical detection device according to the utility model.

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Protection assembly, 101. Protection shell, 102. Protection window, 103. Installation slot, 104. Placement cavity, 105. Sealing cover, 2. Cleaning assembly, 201. Air blowing port, 202. Air blowing hole, 203. Air inlet, 204. Air cavity, 205. Airway, 206. Top cover, 3. Limiting assembly, 301. Slide slot, 302. Piston seat, 4. Waterproof plug. DETAILED DESCRIPTION

[0026] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0027] like Figure 1-Figure 5As shown, the present embodiment provides a protective structure of an optical detection device, including a protective component 1, wherein the protective component 1 at least includes a protective shell 101 and a protective window 102 arranged on the top of the protective shell 101, and the protective shell 101 is provided with a cleaning component 2 on one side of the protective window 102, and the cleaning component 2 is respectively provided with a blowing port 201 for blowing toward the protective window 102 and a blowing hole 202 for blowing toward a workpiece to be measured, and the blowing port 201 and the blowing hole 202 are connected to each other and are provided with an air inlet for connecting to an external pipeline; specifically, the top of the protective shell 101 is provided with a mounting groove 103, A protective window 102 is installed near the top of the installation groove 103; the optical detection device is a detection instrument such as a laser rangefinder, and the protective window 102 can protect the top of the laser rangefinder, and the laser rangefinder can transmit and receive laser light through the protective window 102 for detection; in addition to the air blowing port 201 and the air blowing hole 202, the cleaning component 2 also includes an air cavity 204 opened at the top of the protective shell 101, and high-pressure gas is blown into the air cavity 204 and blown toward the protective window 102 along the air blowing port 201, so that dust, water mist and other pollutants attached to the protective window 102 and the surrounding area are blown away by the high-pressure gas. The top of the air cavity 204 is fixed with a top cover 206, which can seal the top of the air cavity 204 and guide the high-pressure gas. The top of the air cavity 204 is an inclined structure, and a blowing port 201 is opened on one side wall of the air cavity 204, and the blowing port 201 faces the protective window 102. It should be noted that the size of the blowing port 201 is smaller than that of the air cavity 204. Therefore, when the high-pressure gas flows from the air cavity 204 to the blowing port 201, the size of the blowing port 201 is narrowed, so that the high-pressure gas can be further concentrated and sprayed toward the opposite protective window 102. The air duct 205 and the air cavity 20 4 is connected, the air inlet 203 is connected with the air duct 205, the air duct 205 is used to transport high-pressure gas, the air inlet 203 is arranged on the outside of the protective shell 101, the air duct 205 is connected with the air inlet 203, the external air supply equipment can be connected to the air inlet 203 through an external pipeline, so that the transported high-pressure gas enters the air duct 205 through the air inlet 203; the middle part of the top cover 206 is provided with a blowing hole 202 for cleaning the workpiece to be measured, and the high-pressure gas can be blown toward the workpiece to be measured through the blowing hole 202, so that the pollutants such as dust and water mist attached to the workpiece to be measured and the surrounding area are blown away by the high-pressure gas.

[0028] It should be noted that the top cover 206 arranged above the air cavity 204 is detachable and is covered on the air cavity 204 by fasteners such as screws. After long-term use, pollutants such as dust will accumulate and clog the air port 201 and the air hole 202. Therefore, when the air cavity 204 and the airway 205 need to be cleaned, they can be cleaned by removing the top cover 206.

[0029] like Figure 4-Figure 5As shown, in this embodiment, in order to further fix the optical detection device and prevent the light detection device from being offset during operation and causing errors in detection accuracy, a limit assembly 3 is provided on one side of the air inlet 203. The limit assembly 3 includes a slide groove 301 provided on the protective shell 101. The slide groove 301 can guide the piston seat 302. The slide groove 301 is slidably connected with the piston seat 302. The piston seat 302 can be offset against the optical detection device to ensure its stability. A sealing structure is provided between the piston seat 302 and the slide groove 301. The slide groove 301 The piston seat 302 is an H-shaped structure. Specifically, when high-pressure gas enters from the air inlet 203, the pressure generated by the high-pressure gas can make the piston seat 302 move along the direction of the slide groove 301, so that the piston seat 302 can be against the optical detection device arranged inside the protective shell 101, thereby further firmly fixing the light detection device inside the protective shell 101. This can also facilitate the installation and fixation of the light detection device without the need for fixing it with screws or other connecting parts, and can be suitable for installation and fixation of light detection devices of different models or functions.

[0030] like Figure 1-Figure 4 As shown, a placement cavity 104 is opened in the protective shell 101, and the placement cavity 104 is connected to the protective window 102. The optical detection device is placed in the placement cavity 104 and can transmit and receive signals through the protective window 102, so that the protective shell 101 can protect the optical detection device through the placement cavity 104.

[0031] The protective window 102 is made of transparent materials such as glass or acrylic. In the present invention, glass is preferably used as the protective window 102, so that the optical detection device can transmit and receive external signals through the glass.

[0032] like Figure 1-Figure 4 As shown, the top of the placement cavity 104 is covered with a sealing cover 105, and the sealing cover 105 is bonded to the protective shell 101. The sealing cover 105 can seal the top of the placement cavity 104, thereby preventing external dust and water mist from entering the protective shell 101, preventing corrosive pollutants from damaging the optical detection device, and protecting the optical detection device.

[0033] like Figure 1-Figure 2 As shown, a plurality of plugs for supplying power and transmitting signals to the optical detection device are installed on both sides of the protective shell 101, wherein a waterproof plug 4 is preferably used to prevent corrosion and damage to the plug by external dust and water mist; a through groove for installing and connecting the waterproof plug 4 is provided on the protective shell 101, and power can be supplied and electrical signals can be transmitted to the optical detection device arranged in the protective shell 101 through the waterproof plug 4.

[0034] Working principle of the device: When the device is used, the staff places the optical detection device in the protective shell 101 through the placement cavity 104, and connects it to the laser rangefinder through the waterproof plug 4 to power it. At this time, the optical detection device is away from the air inlet 203 and is against a side wall in the placement cavity 104. After the connection is completed, the sealing cover 105 is installed on the top of the placement cavity 104 through sealant, and the sealing cover 105 is used to seal it to prevent water leakage. Then, during the use of the optical detection device, the optical path signal generated inside it is transmitted to the outside through the protective window 102 in the installation groove 103, and the return signal can enter the optical detection device again through the protective window 102 to complete the measurement. At the same time, the air inlet 203 is connected to the outside The high-pressure gas enters the air passage 205 through the air inlet 203 and is ejected from the air cavity 204. The high-pressure gas is blocked by the top cover 206 so that the high-pressure gas is respectively sprayed from the air outlet 201 and the air hole 202 to the surface of the protective window 102 and the workpiece to be measured. The oil mist or water vapor on the outside of the protective window 102 and the workpiece to be measured is blown away by the high-pressure gas to avoid blocking the protective window 102 and causing the optical detection device to be inaccurate, thereby ensuring the normal operation of the optical detection device and improving the accuracy of the measurement result. When the high-pressure gas enters the air inlet 203, the pressure generated by the high-pressure gas causes the piston seat 302 to move along the slide groove 301, and one end of the piston seat 302 can be against the laser rangefinder, thereby ensuring the stability of the optical detection device during use.

[0035] The above are only further embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A protective structure for an optical detection device, characterized in that: The invention comprises a protection component (1), wherein the protection component (1) comprises at least a protection shell (101) and a protection window (102) arranged on the top of the protection shell (101); the protection shell (101) is provided with a cleaning component (2) on one side of the protection window (102); the cleaning component (2) is provided with an air blowing port (201) for blowing toward the protection window (102) and an air blowing hole (202) for blowing toward a workpiece to be measured; the air blowing port (201) and the air blowing hole (202) are connected to each other and are provided with an air inlet (203) for connecting to an external pipeline.

2. The optical detection device protection structure according to claim 1, characterized in that: An air delivery channel is also provided between the air outlet (201) and the air hole (202) and the air inlet (203), the air delivery channel comprising an air cavity (204) and an air channel (205); the air outlet (201) is arranged on one side of the air cavity (204), and the air outlet (201) faces the protective window (102); a top cover (206) is provided on the top of the air cavity (204), and the air outlet (202) is opened at the middle of the top of the top cover (206); the air channel (205) is in communication with the air cavity (204), the air inlet (203) is in communication with the air channel (205), and the air inlet (203) is arranged on the outside of the protective shell (101).

3. The optical detection device protection structure according to claim 2, characterized in that: The top of the air cavity (204) is an inclined structure, and the top cover (206) is arranged to cover the top of the air cavity (204) in an inclined manner.

4. The optical detection device protection structure according to claim 2, characterized in that: The size of the blowing port (201) is smaller than the size of the air cavity (204).

5. The optical detection device protection structure according to claim 1, characterized in that: The top of the protective shell (101) is provided with a mounting groove (103), and the protective window (102) is arranged in the mounting groove (103).

6. The optical detection device protection structure according to claim 1, characterized in that: The protective shell (101) is provided with a limiting component (3) on one side of the air inlet (203).

7. The optical detection device protection structure according to claim 6, characterized in that: The limit assembly (3) comprises a slide groove (301) provided on the protective shell (101), a piston seat (302) being slidably connected in the slide groove (301), and a sealing structure is provided between the piston seat (302) and the slide groove (301), and both the slide groove (301) and the piston seat (302) are H-shaped structures.

8. The optical detection device protection structure according to claim 1, characterized in that: A placement cavity (104) is provided in the protective shell (101), and the placement cavity (104) is communicated with the protective window (102).

9. The optical detection device protection structure according to claim 8, characterized in that: The placement cavity (104) is covered with a sealing cover (105), and the sealing cover (105) is bonded to the protective shell (101).

10. The optical detection device protection structure according to claim 1, characterized in that: The protective shell (101) is installed with a waterproof plug (4), and the protective shell (101) is provided with a through groove for connecting the waterproof plug (4).

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