Protection device

Abstract

The utility model discloses a protection device, and solves the technical problem that three-dimensional laser scanning equipment in the prior art is easy to generate condensation lines during storage and placement. The protection device comprises a first box body, a second box body, a driving mechanism, an air inlet pipe, an air outlet pipe and an air pump, a transparent panel is arranged on one side wall of the first box body, and a box door is arranged on the other side wall of the first box body; the second box body is arranged in the first box body, the second box body is filled with a moisture absorption filter layer, and two opposite side walls of the second box body are provided with a second air inlet hole and a second air outlet hole; the driving mechanism is arranged on the second box body, and the driving mechanism operably drives the moisture absorption filtering layer to move, so that different parts of the moisture absorption filtering layer can be opposite to the second air inlet hole and the second air outlet hole; the air inlet pipe communicates with the first box and the second air inlet. The air outlet pipe communicates with the first box and the second air outlet. The air pump is arranged on the air inlet pipe or the air outlet pipe. The possibility of condensation of the three-dimensional laser scanning equipment can be reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of auxiliary devices for laser scanning equipment, and specifically relates to a protective device. Background Art

[0002] 3D laser scanning technology is also known as real-scene replication technology. 3D laser scanning technology can provide 3D point cloud data of the surface of the scanned object, so it can be used to obtain high-precision and high-resolution digital terrain models. 3D laser scanning equipment is precision equipment and is expensive, so you need to be extra careful when storing and placing the equipment. Existing 3D laser scanning equipment is not adequately protected during storage. When the humidity of the external storage environment is high, condensation may occur inside the 3D laser scanning equipment, which may cause the hidden danger of mildew on the coating layer of the internal optical components. Summary of the invention

[0003] In order to solve the technical problem that condensation lines are easily generated under the current three-dimensional laser scanning equipment during storage and placement, the present application provides a protective device.

[0004] In a first aspect of the present application, a protection device is provided, comprising:

[0005] A first box body, wherein an installation space for installing a scanning device is provided in the first box body, a transparent panel is provided on one side wall of the first box body, and a box door is provided on another side wall of the first box body;

[0006] A second box body is arranged in the first box body, the second box body is filled with a moisture absorption filter layer, and the second air inlet and the second air outlet are arranged on two opposite side walls of the second box body;

[0007] A driving mechanism is disposed in the second housing, and the driving mechanism can operably drive the moisture absorption filter layer to move so that different parts of the moisture absorption filter layer can be opposite to the second air inlet and the second air outlet;

[0008] An air inlet pipe, communicating with the first box and the second air inlet hole;

[0009] An air outlet pipe, communicating with the first box body and the second air outlet hole;

[0010] An air pump is arranged on the air inlet pipe or the air outlet pipe.

[0011] In some embodiments, the hygroscopic filter layer is in a ring shape, and the driving mechanism can operably drive the hygroscopic filter layer to rotate; and a line between the second air inlet and the second air outlet passes through the hygroscopic filter layer.

[0012] In some embodiments, the driving mechanism is a motor, the motor is disposed outside the second housing, the output shaft of the motor is connected to the hygroscopic filter layer, and the axis of the output shaft and the axis of the hygroscopic filter layer are located on the same straight line.

[0013] In some embodiments, a support block is further provided between the hygroscopic filter layer and the output shaft, and a diameter of the support block is not less than 1 / 3 of a diameter of the hygroscopic filter layer.

[0014] In some embodiments, the interior of the second housing is cylindrical and matches the shape of the hygroscopic filter layer. A bearing is disposed inside the annular wall of the second housing. The outer ring of the bearing is fixedly connected to the second housing, and the inner ring of the bearing is connected to the hygroscopic filter layer.

[0015] In some embodiments, the protection device further comprises a third box body, the third box body is provided with a third air inlet and a third air outlet, the third air outlet is connected to the air inlet pipe, the air inlet is provided with a three-way valve, and the third box body has a heater therein.

[0016] In some embodiments, the air outlet pipe is provided with a three-way valve.

[0017] In some embodiments, the protection device further includes a fourth box body, the fourth box body is provided with a fourth air inlet and a fourth air outlet, the fourth air inlet is connected to the three-way valve on the air outlet pipe, and a second humidity sensor is provided in the fourth box body.

[0018] In some embodiments, a first humidity sensor is disposed in the first box.

[0019] In some embodiments, the protection device further includes a tripod, and the tripod is disposed at the bottom end of the first box.

[0020] According to the protective device provided by one or more embodiments of the present application, the hygroscopic filter layer can be operably driven to move by a driving mechanism so that different parts of the hygroscopic filter layer can be opposite to the second air inlet and the second air outlet, and the moisture absorption effect of the hygroscopic filter layer is limited by the amount of moisture it has absorbed, and the positions of the second air inlet and the second air outlet will not change. The hygroscopic filter layer is moved by the driving mechanism to change the relative position between the hygroscopic filter layer and the second air inlet and the second air outlet, so that the hygroscopic filter layer can continuously and efficiently perform moisture absorption operations, thereby reducing the possibility of condensation in the three-dimensional laser scanning equipment in the first box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a protection device in one or more embodiments of the present application is shown.

[0022] Figure 2 Shows Figure 1 Schematic diagram of the cross-sectional structure of the central protection device.

[0023] Figure 3 Shows Figure 1 Schematic diagram of the cross-sectional structure of the second box body.

[0024] Explanation of the accompanying drawings: 1-tripod, 2-first box, 3-battery, 4-3D laser scanner, 5-box door, 6-transparent panel, 7-first humidity sensor, 8-exhaust pipe, 9-air pump, 10-inlet pipe, 11-second box, 12-hygroscopic filter layer, 13-third box, 14-bearing, 15-motor, 16-support block, 17-fourth box, 18-filter, 19-heater, 20-second humidity sensor. DETAILED DESCRIPTION

[0025] In order to make the technical personnel in the technical field to which the present application belongs to understand the present application more clearly, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0026] See also Figure 1-3 According to a first aspect of the present application, a protective device is provided, including a first box body 2, a second box body 11, a driving mechanism, an air inlet pipe 10, an air outlet pipe 8 and an air pump 9.

[0027] An installation space for installing a scanning device is provided in the first box body 2. A transparent panel 6 is provided on one side wall of the first box body 2. A box door 5 is provided on the other side wall of the first box body 2. The box door 5 is used to open the first box body 2 to facilitate placing the three-dimensional laser scanning device in the box body. The transparent panel 6 ensures that the first box body 2 is airtight and does not block the scanning and mapping operations of the three-dimensional laser scanning device.

[0028] The second box 11 is arranged in the first box 2, and the second box 11 is filled with a hygroscopic filter layer 12. The second air inlet and the second air outlet are arranged on the opposite side walls of the second box 11. The second air inlet and the second air outlet are located on the opposite side walls of the second box 11. Therefore, when the gas is to flow between the second air inlet and the second air outlet, the air flow will inevitably pass through the hygroscopic filter layer 12 filled in the second box 11. The air inlet pipe 10 is connected to the first box 2 and the second air inlet; the air outlet pipe 8 is connected to the first box 2 and the second air outlet; the air pump 9 is arranged on the air inlet pipe 10 or the air outlet pipe 8. When the air pump 9 is started, the gas in the first box 2 will pass through the air inlet pipe 10 into the second box 11, and will be dehumidified by the hygroscopic filter layer 12 and then return to the box through the air outlet pipe 8, so as to reduce the air humidity in the first box 2 and reduce the possibility of condensation in the first box 2.

[0029] The driving mechanism is arranged on the second box body 11, and the driving mechanism can operably drive the hygroscopic filter layer 12 to move so that different parts of the hygroscopic filter layer 12 can be opposite to the second air inlet and the second air outlet. The hygroscopic effect of the hygroscopic filter layer 12 is limited by the amount of moisture it has absorbed, and the positions of the second air inlet and the second air outlet will not change. The hygroscopic filter layer 12 is moved by the driving mechanism to change the relative position between the hygroscopic filter layer 12 and the second air inlet and the second air outlet, so that the hygroscopic filter layer 12 can continuously and efficiently perform hygroscopic operations, thereby reducing the possibility of condensation in the three-dimensional laser scanning equipment in the first box body 2.

[0030] In some embodiments, a first humidity sensor 7 is provided in the first box body 2, and the first humidity sensor 7 is used to obtain humidity data in the first box body 2. The operator can understand whether it is necessary to turn on the air pump 9 to dehumidify the inside of the first box body 2 based on the reading of the first humidity sensor 7.

[0031] In some embodiments, the hygroscopic filter layer 12 and the second box body 11 may both be in the shape of long strips, and the width and height of the hygroscopic filter layer 12 are consistent with the width and height inside the second box body 11, but the length of the hygroscopic filter layer 12 is smaller than the length of the second box body 11. The driving mechanism drives the hygroscopic filter layer 12 to move along the length direction inside the second box body 11 to change the relative position between the hygroscopic filter layer 12 and the second air inlet and the second air outlet.

[0032] In some embodiments, the hygroscopic filter layer 12 is in a ring shape, and the driving mechanism can operably drive the hygroscopic filter layer 12 to rotate; the line between the second air inlet and the second air outlet passes through the hygroscopic filter layer 12 .

[0033] The width occupied by the annular hygroscopic filter layer 12 is narrower, and during the rotation of the hygroscopic filter layer 12, its width does not change compared to the first box body 2. Accordingly, the volume of the second box body 11 is smaller, which is more convenient for setting the second box body 11 on the first box body 2, making it easier to carry the entire protective device.

[0034] In some embodiments, the driving mechanism is a motor 15, which is disposed outside the second housing 11, and a through hole is disposed on the side wall of the second housing 11. The output shaft of the motor 15 is connected to the hygroscopic filter layer 12 through the through hole, and the axis of the output shaft is located on the same straight line as the axis of the hygroscopic filter layer 12. When the motor 15 is driven, the rotation of the output shaft can drive the hygroscopic filter layer 12 to rotate. Of course, in order to prevent the hygroscopic filter layer 12 from rotating too fast, the motor 15 can be a servo motor 15, or the output shaft of the motor 15 can be connected to the hygroscopic filter layer 12 through a gear box to slow down the rotation speed of the hygroscopic filter layer 12.

[0035] In some embodiments, a support block 16 is further disposed between the moisture absorption filter layer 12 and the output shaft, and the diameter of the support block 16 is not less than 1 / 3 of the diameter of the moisture absorption filter layer 12 .

[0036] The support block 16 is also annular to support the moisture absorption filter layer 12 to ensure that the moisture absorption filter layer 12 is in a good position. At the same time, the support block 16 can be fixedly connected to the output shaft, and the outer wall of the support block 16 can be set as a friction surface to increase the friction between the moisture absorption filter layer 12 and the support block 16, reduce the slipping situation, and ensure that the moisture absorption operation of the moisture absorption filter layer 12 can be carried out stably.

[0037] In some embodiments, the interior of the second box body 11 is cylindrical and matches the shape of the hygroscopic filter layer 12 . A bearing 14 is disposed inside the annular wall of the second box body 11 . The outer ring of the bearing 14 is fixedly connected to the second box body 11 , and the inner ring of the bearing 14 is connected to the hygroscopic filter layer 12 .

[0038] By providing the bearing 14, the friction between the inner wall of the second housing 11 and the hygroscopic filter layer 12 is reduced, so that the hygroscopic filter layer 12 can rotate more smoothly. Of course, when the hygroscopic material is a molecular sieve, activated carbon or other materials, the hygroscopic filter layer 12 includes a frame and hygroscopic materials filled in the frame, so that the hygroscopic filter layer 12 maintains a circular ring shape. At this time, the hygroscopic filter layer 12 is connected to the inner circle of the bearing 14 through the frame.

[0039] In some embodiments, the protection device further comprises a third box body 13, the third box body 13 is provided with a third air inlet and a third air outlet, the third air outlet is connected to the air inlet pipe 10, the air inlet is provided with a three-way valve, and the third box body 13 is provided with a heater 19 therein.

[0040] The third air inlet is connected to the outside of the third box 13, and the third air inlet is provided with a filter 18 to remove dust from the external air. It can be understood that when the heater 19, the air pump 9 and the driving mechanism are all started, the third air outlet is connected to the air inlet pipe 10 through the three-way valve, and the third air outlet pipe 8 will not be directly connected to the first box 2, and the heated gas will enter the second box 11, thereby taking away the moisture adsorbed by the hygroscopic filter layer 12, so that the hygroscopic filter layer 12 can be reused. Of course, at this time, the operator needs to take out the three-dimensional laser scanning equipment from the first box 2, so that the gas carrying a large amount of moisture is discharged from the box door 5. After the hygroscopic filter layer 12 resumes its hygroscopic function, turn off the heater 19 and the air pump 9, and close the third air outlet through the three-way valve. The heater 19 can be selected as an electric heating wire.

[0041] Of course, considering that taking out the three-dimensional laser scanning equipment may easily cause damage to the three-dimensional laser scanning equipment, in some embodiments, the outlet pipe 8 is provided with a three-way valve, that is, in the process of restoring the moisture absorption capacity of the hygroscopic filter layer 12, through the three-way valve on the inlet pipe 10 and the three-way valve on the outlet pipe 8, the air entering from the third air inlet hole can only be discharged from the three-way valve on the outlet pipe 8 after heating, and the discharged air is outside the first box body 2, and will not affect the three-dimensional laser scanning equipment in the first box body 2.

[0042] In some embodiments, the protection device further comprises a fourth box 17, the fourth box 17 is provided with a fourth air inlet and a fourth air outlet, the fourth air inlet is connected to the three-way valve on the air outlet pipe 8, and a second humidity sensor is provided in the fourth box 17. By reading the value displayed by the second humidity sensor, it can be known whether the moisture absorption capacity of the moisture absorption filter layer 12 is restored. Specifically, when the value read by the second humidity sensor is high, it is considered that the moisture absorption capacity of the moisture absorption filter layer 12 has not been restored; when the value read by the second humidity sensor is low, it is considered that the moisture absorption capacity of the moisture absorption filter layer 12 is restored, and the heater 19, the air pump 9 and the driving mechanism can be turned off at this time.

[0043] In some embodiments, the protection device further comprises a tripod, and the tripod 1 is arranged at the bottom end of the first box body 2. The tripod 1 is detachably connected to the box body, so as to facilitate the operator to carry it.

[0044] In some embodiments, the protection device further includes a battery 3, through which the drive mechanism, the air pump 9, the heater 19, the first humidity sensor 7, the second humidity sensor and other mechanisms are powered.

[0045] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A protection device, characterized in that: include: A first box body, wherein an installation space for installing a scanning device is provided in the first box body, a transparent panel is provided on one side wall of the first box body, and a box door is provided on another side wall of the first box body; A second box body is arranged in the first box body, the second box body is filled with a moisture absorption filter layer, and the second air inlet and the second air outlet are arranged on two opposite side walls of the second box body; A driving mechanism is disposed in the second housing, and the driving mechanism can operably drive the moisture absorption filter layer to move so that different parts of the moisture absorption filter layer can be opposite to the second air inlet and the second air outlet; An air inlet pipe, communicating with the first box and the second air inlet hole; An air outlet pipe, communicating with the first box body and the second air outlet hole; An air pump is arranged on the air inlet pipe or the air outlet pipe.

2. The protection device according to claim 1, characterized in that: The moisture absorption filter layer is in a ring shape, and the driving mechanism can operably drive the moisture absorption filter layer to rotate; the line between the second air inlet and the second air outlet passes through the moisture absorption filter layer.

3. The protection device according to claim 2, characterized in that: The driving mechanism is a motor, which is arranged outside the second housing. The output shaft of the motor is connected to the moisture absorption filter layer, and the axis of the output shaft and the axis of the moisture absorption filter layer are located on the same straight line.

4. The protection device according to claim 3, characterized in that: A support block is further arranged between the moisture absorption filter layer and the output shaft, and the diameter of the support block is not less than 1 / 3 of the diameter of the moisture absorption filter layer.

5. The protection device according to claim 3, characterized in that: The interior of the second housing is cylindrical and matches the shape of the hygroscopic filter layer. A bearing is arranged inside the annular wall of the second housing. The outer ring of the bearing is fixedly connected to the second housing, and the inner ring of the bearing is connected to the hygroscopic filter layer.

6. The protection device according to claim 1, characterized in that: The protection device further comprises a third box body, the third box body is provided with a third air inlet and a third air outlet, the third air outlet is communicated with the air inlet pipe, the air inlet is provided with a three-way valve, and the third box body is provided with a heater.

7. The protection device according to claim 6, characterized in that: The air outlet pipe is provided with a three-way valve.

8. The protection device according to claim 7, characterized in that: The protection device further comprises a fourth box body, the fourth box body is provided with a fourth air inlet and a fourth air outlet, the fourth air inlet is communicated with the three-way valve on the air outlet pipe, and a second humidity sensor is arranged in the fourth box body.

9. The protection device according to claim 1, characterized in that: A first humidity sensor is disposed in the first box.

10. The protection device according to claim 1, characterized in that: The protection device also includes a tripod, which is arranged at the bottom end of the first box.

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