Handheld underwater photogrammetry device

Abstract

The handheld underwater photogrammetry device comprises a base, the lower portion of the base is provided with a holding groove, the upper portion of the base is provided with a protection box, the two sides of the opening portion of the protection box are each provided with an electric side-opening type box cover, an installation positioning mechanism is arranged in the protection box, a displayer is fixed to the installation positioning mechanism, and the displayer is connected with the handheld underwater photogrammetry device. The display is connected with a data transmission module through a wire, the data transmission module is installed in a data transmission box, a transparent box is installed at the tail end of the data transmission box, a camera is arranged in the transparent box, the camera is connected with the data transmission module, and the data transmission box is fixedly connected with the base. An integrated structure is adopted, and the holding groove is formed, so that a user can carry out handheld operation conveniently; and the display is arranged in the protection box, so that the display is prevented from being damaged due to external impact, and meanwhile, the display is convenient to store.

Description

Technical Field

[0001] The present invention relates to the technical field of photogrammetry, and particularly relates to a handheld underwater photogrammetry device. Background Art

[0002] Photogrammetry technology has been extended from aerial applications to terrestrial applications and now shows its edge in the underwater field. Compared with traditional sonar mapping, photogrammetry technology has powerful advantages. It can perform three-dimensional reconstruction of underwater features and generate two-dimensional topographic maps for large areas, and can be used in multiple fields such as sunken ship surveys, inspections of docks, bridges, and dams, and underwater engineering surveys. Underwater photogrammetry technology is a technology that determines the geometric characteristics of the photographed target by using the images taken with the object space in water and the image space in air, and is widely used in seabed mapping, bathymetry, underwater archaeology, aquatic research, ocean engineering, bubble chamber, and measurement of the surface accuracy of spaceborne flexible antennas in zero-gravity environments.

[0003] However, there are still some deficiencies in the current underwater photogrammetry devices:

[0004] 1) The detection processor in the device is set in the external environment, which is not convenient for storage and is also easily damaged when impacted externally;

[0005] 2) Measuring by loading one or more cameras on an unmanned ship has a relatively high cost. Summary of the Invention

[0006] The present invention provides a handheld underwater photogrammetry device to solve the technical problems existing in the known technology. This device can be manually held for shooting and measurement, and the measurement cost is relatively low; the display is installed inside the device and is not easily damaged.

[0007] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: a handheld underwater photogrammetry device, including a base. A grip groove is provided at the lower part of the base, and a protective box is provided at the upper part. On both sides of the mouth of the protective box, an electric side-opening box cover is provided respectively. An installation and positioning mechanism is provided inside the protective box, and a display is fixed on the installation and positioning mechanism. The display is connected to a data transmission module through a wire. The data transmission module is installed in a data transmission box. A transparent box is installed at the end of the data transmission box, and a camera is arranged inside the transparent box. The camera is connected to the data transmission module, and the data transmission box is fixedly connected to the base.

[0008] The two electric side-opening box covers are driven by an opening and closing screw transmission mechanism, and the opening and closing screw transmission mechanism is installed inside the protective box.

[0009] A screw rod is provided at each of the upper and lower ends of the two lid bodies. The screw rods are installed inside the protective box, with opposite thread directions on both sides. One of them is driven by a motor, and the motor is installed outside the protective box. A moving block that is threadedly connected to the screw rod is provided on each side of the screw rod. The moving block is connected to the lid body. The two screw rods are connected by a belt provided at their middle parts.

[0010] The elastic component is provided with a first spring, and a telescopic rod is inserted into the first spring.

[0011] The data transmission box and the base are fixedly connected by a telescopic mechanism. The wire is fixed to the telescopic mechanism by a connecting member and a clamping structure. The clamping mechanism is arranged at the top of the connecting member, and the connecting member is fixed to the telescopic mechanism.

[0012] The telescopic mechanism is provided with a plurality of sleeves connected in sequence, and a scissor-type telescopic structure is arranged inside.

[0013] The scissor-type telescopic structure is provided with a scissor-type telescopic component. The scissor-type telescopic component is driven by a telescopic screw transmission mechanism. The scissor-type telescopic component is provided with a limiting rod, and the limiting rod is assembled in a guide groove. The guide groove is arranged inside the corresponding sleeve.

[0014] The clamping mechanism includes a mounting frame. The mounting frame is fixedly installed at the top end of the connecting member. Both sides inside the mounting frame are fixedly connected to a clamping plate through a plurality of groups of second springs. Pressing grooves are respectively provided on the mutually approaching sides of the two facing clamping plates. A pull rod is fixedly installed in the middle of the top end of one of the clamping plates. The wire is clamped and fixed between the two pressing grooves.

[0015] The advantages and positive effects of the present invention are as follows: An integrated structure is adopted. By providing a holding groove, it is convenient for the user to perform a handheld operation. By arranging the display inside the protective box, it is possible to prevent the display from being damaged by external impacts and at the same time facilitate the storage of the display. Secondly, by providing an installation and positioning mechanism, it is convenient to install and disassemble the display, facilitating the maintenance and replacement of the display by the staff, which is convenient and fast. By providing an opening and closing mechanism, it is convenient to control the opening and closing of the lid of the protective box. By providing a telescopic mechanism, it is possible to drive the second sleeve, the third sleeve, and the fourth sleeve to all slide, changing the overall length of the device, and it can be applied to measure at different underwater depths. By providing a clamping mechanism, the wire can be clamped to prevent the wire from being too messy, improving the rigor of the design and meeting the needs of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2Schematic diagram of the structure of the present invention from another perspective;

[0018] Figure 3 Front view of the present invention;

[0019] Figure 4 Schematic diagram of the internal structure of the protective box in the present invention;

[0020] Figure 5 is Figure 2 Enlarged schematic diagram of part A of;

[0021] Figure 6 Schematic diagram of the structure of the display in the installed state of the present invention;

[0022] Figure 7 Schematic diagram of the structure of the installation mechanism in the present invention;

[0023] Figure 8 is Figure 7 Enlarged schematic diagram of part B of;

[0024] Figure 9 Schematic diagram of the structure of the clamping mechanism in the present invention;

[0025] Figure 10 Schematic diagram of the structure of the telescopic mechanism in the present invention;

[0026] Figure 11 is Figure 10 Enlarged schematic diagram of part C of;

[0027] Figure 12 is Figure 10 Enlarged schematic diagram of part D of;

[0028] Figure 13 is Figure 2 Enlarged schematic diagram of part E of.

[0029] In the figure: 1. Base; 101. Holding groove; 102. First sleeve; 103. Second sleeve; 104. Third sleeve; 105. Fourth sleeve; 106. Connection plate; 107. Protection box; 108. Display; 109. Box cover; 110. Connection hole; 111. Connector; 112. Notch; 113. Wire; 2. Installation mechanism; 201. Substrate; 202. Through hole; 203. Housing; 204. Gear; 205. First rack; 206. Limiting part I; 207. Slide groove I; 208. Telescopic rod; 209. First spring; 210. First clamping part; 211. Limiting part II; 212. Second rack; 213. Third rack; 214. Slide groove II; 215. Second clamping part; 216. Third clamping part; 217. Through slot; 3. Opening and closing mechanism; 301. Threaded rod; 302. First moving block; 303. Rotating wheel; 304. Belt; 305. Driving motor; 4. Telescopic mechanism; 401. Stepping motor; 402. First lead screw; 403. Connection plate; 404. First rotating arm; 405. Second rotating arm; 406. Lifting part; 407. Third rotating arm; 408. Fourth rotating arm; 409. Telescopic component; 410. Guide groove; 411. Limiting rod; 501. Installation frame; 502. Second spring; 503. Clamping plate; 504. Pressing groove. Detailed implementation mode

[0030] In order to further understand the content, characteristics and effects of the present invention, the following embodiments are listed and described in detail with reference to the accompanying drawings as follows:

[0031] Please refer to Figures 1 to 13 , a handheld underwater photogrammetry device, including a base 1, and a holding groove 101 is formed through the lower part of the base 1 for manual hand-held shooting and measurement.

[0032] The base 1 is fixedly connected with a data transmission box 106 through a telescopic mechanism 4. The telescopic mechanism 4 is provided with a first sleeve 102 fixedly connected to the left side of the base 1. A second sleeve 103 is slidably connected inside the first sleeve 102. A third sleeve 104 is slidably connected inside the second sleeve 103. A fourth sleeve 105 is provided inside the third sleeve 104 and is slidably connected thereto. Moreover, the first sleeve 102, the second sleeve 103, the third sleeve 104 and the fourth sleeve 105 are all connected through the telescopic mechanism 4.

[0033] The outer end of the fourth sleeve 105 is fixedly installed with a data transmission box 106. A protection box 107 is fixedly installed on the upper part of the base 1. Electrically operated side-opening box covers 109 are arranged on both sides of the opening of the protection box 107.

[0034] The interior of the protective box 107 is connected to the box cover 109 through an opening and closing mechanism 3, and a display 108 is also connected inside the protective box 107 through a mounting mechanism 2. A connection hole 110 is provided on the display 108, and a wire 113 is inserted into the connection hole 110. A data transmission module is installed inside the data transmission box 106, and the other end of the wire 113 is electrically connected to the data transmission module.

[0035] A connecting piece 111 is further fixedly installed at the top end of the third sleeve 104. A clamping mechanism is provided at the top of the connecting piece 111. Through holes 112 for the connecting piece 111 to pass through are respectively formed at the tops of the first sleeve 102 and the second sleeve 103. A transparent box is installed at the end of the data transmission box 106, and a camera is arranged inside the transparent box. The camera is connected to the data transmission module.

[0036] The above underwater photography device is of an integrated structure. By providing a holding groove 101, it is convenient for the user to hold and operate. The wire 113 is connected through the connection hole 110 on the display 108, and the other end of the wire 113 is connected to the data transmission module. The camera measures underwater, and the measurement situation is displayed by the display 108. The display 108 is arranged inside the protective box 107 to prevent the display 108 from being damaged by external impact and is also convenient for storing the display 108. Secondly, a mounting mechanism 2 is provided to facilitate the installation and disassembly of the display 108, which is convenient for the staff to repair and replace the display 108, fast and convenient. An opening and closing mechanism 3 is also provided to facilitate the opening and closing of the box covers 109 on both sides. Then, a telescopic mechanism 4 is provided, which can drive the second sleeve 103, the third sleeve 104 and the fourth sleeve 105 to slide to change the overall length of the device, and can be applicable to measuring at different underwater depths. By providing a clamping mechanism, the wire 113 is clamped to prevent the wire 113 from being too messy, improving the rigor of the design.

[0037] It is also worth mentioning here that since the second sleeve 103 can extend into the interior of the first sleeve 102 and the third sleeve 104 can extend into the interior of the second sleeve 103, in order not to affect the sliding of the second sleeve 103 and the third sleeve 104, through holes 112 are formed in the first sleeve 102 and the second sleeve 103, further improving the rigor of the product design.

[0038] The above-mentioned opening and closing mechanism 3 includes a threaded rod 301, a first moving block 302 and a second moving block. There are two groups of threaded rods 301 which are respectively rotatably connected to both sides inside the protective box 107. The thread directions on both sides of the threaded rod 301 are opposite, and the first moving block 302 and the second moving block are respectively threadedly connected to both sides of the threaded rod 301. The tops of the first moving block 302 and the second moving block are respectively fixedly connected to the two side box covers 109. One end of the threaded rod 301 is connected to the output end of the driving motor 305, and the driving motor 305 is fixedly installed at the bottom end outside the protective box 107. A runner 303 is installed in the middle of each of the two groups of threaded rods 301, and the two runners 303 are drivingly connected by a belt 304.

[0039] The working principle of the above-mentioned opening and closing mechanism 3 is as follows: The output end of the driving motor 305 drives one group of the threaded rod 301 and one group of the runner 303 to rotate integrally. Driven by the belt 304, the two groups of threaded rods 301 rotate synchronously. Furthermore, the first moving block 302 and the second moving block approach or move away from each other. When approaching, the two side box covers 109 are driven to approach each other, realizing the closing of the opening of the protective box 107; when moving away, the two side box covers 109 are driven to move away from each other, realizing the opening of the opening of the protective box 107.

[0040] The above-mentioned installation and positioning mechanism 2 includes a base plate 201, a first rack 205, a second rack 212 and a third rack 213. The base plate 201 is fixedly installed at the bottom of the protective box 107. A housing 203 is installed on the top of the base plate 201. A through hole 202 for the belt 304 to pass through is penetrated through the base plate 201. A gear 204 is rotatably connected inside the housing 203. The first rack 205, the second rack 212 and the third rack 213 are all meshed with the gear 204. The bottom end of the first rack 205 is fixedly connected to the first clamping member 210, and the outer sides of the second rack 212 and the third rack 213 are respectively fixedly connected to the second clamping member 215 and the third clamping member 216. Limiting members II 211 are fixedly installed on both sides inside the housing 203. A chute II 214 is penetrated through the second clamping member 215 and the third clamping member 216. The limiting member II 211 is slidably connected to the chute II 214. A through groove 217 for the first clamping member 210, the second clamping member 215 and the third clamping member 216 to pass through is penetrated through the outer side of the housing 203.

[0041] Please refer to Figure 8 , a limiting member I 206 is also fixedly installed at the bottom end inside the housing 203. A telescopic rod 208 is fixedly connected to the limiting member I 206. A chute I 207 is penetrated through the first clamping member 210. The telescopic end of the telescopic rod 208 is fixedly connected to the top end inside the chute I 207, and a first spring 209 is sleeved outside the telescopic rod 208.

[0042] The working principle of the above installation mechanism 2 is as follows:

[0043] When installing the display 108, by inserting the bottom of the display 108 inside the first clamping member 210, under the action of the gravity of the display 108, the telescopic rod 208 and the first spring 209 are both in a contracted state. Further, the first rack 205 moves downward, driving the gear 204 to rotate counterclockwise, so that the second rack 212 and the third rack 213 both move in the direction close to the gear 204. Thus, the second clamping member 215 and the third clamping member 216 both move in the direction close to the display 108, realizing the clamping of the display 108; by setting the telescopic rod 208, the stability of the overall movement of the first rack 205 and the first clamping member 210 is improved; by setting the limiting member to cooperate with the chute to guide the rack, the stability of the rack movement is improved. The telescopic rod 208 is a common structure in daily life and will not be elaborated here.

[0044] Please refer to Figure 10 、 Figure 11 and Figure 12 As shown in, the telescopic mechanism 4 includes a stepper motor 401, a first lead screw 402, a lifting member 406 and a telescopic member 409. The stepper motor 401 is fixedly installed on the inner wall of the first sleeve 102. A connecting plate 403 is also fixedly connected to the inner wall of the first sleeve 102. One end of the first lead screw 402 is fixedly connected to the output end of the stepper motor 401, and the other end of the first lead screw 402 is rotatably connected to the inside of the connecting plate 403. The lifting member 406 is threadedly connected to the outer surface of the first lead screw 402.

[0045] Please refer to Figure 10 and Figure 11 As shown in, a first fixed shaft is also fixedly connected to the inner wall of the first sleeve 102. A first rotating arm 404 and a second rotating arm 405 are hinged to the outer surface of the first fixed shaft. And a second fixed shaft is fixedly connected to the inner wall of the fourth sleeve 105. A third rotating arm 407 and a fourth rotating arm 408 are rotatably connected to the outer surface of the second fixed shaft. Both sides of one end of the telescopic member 409 are respectively rotatably connected to the first rotating arm 404 and the second rotating arm 405, and both sides of the other end of the telescopic member 409 are respectively rotatably connected to the third rotating arm 407 and the fourth rotating arm 408. The lifting member 406 is fixedly connected to the telescopic member 409.

[0046] Please refer to Figure 12 As shown in, guide grooves 410 are provided on both the second sleeve 103 and the third sleeve 104. A limiting rod 411 is provided on the telescopic member 409, and the limiting rod 411 is slidably connected to the inside of the guide groove 410.

[0047] The working principle of the above telescopic mechanism 4 is as follows:

[0048] The output end of the motor 401 drives the first lead screw 402 to rotate, causing the lifting member 406 to move up and down. When the lifting member 406 moves upward, the telescopic member 409 is in a stretched state, driving the second sleeve 103, the third sleeve 104, and the fourth sleeve 105 to all slide upward. Also, when the lifting member 406 moves downward, the telescopic member 409 is in a retracted state, driving the second sleeve 103, the third sleeve 104, and the fourth sleeve 105 to all slide downward. Therefore, the overall length of the device can be changed, enabling the device to be well-suited for measuring at different underwater depths.

[0049] Please refer to Figure 9 As shown, the above-mentioned clamping mechanism 5 includes a mounting frame 501. The mounting frame 501 is fixedly installed at the top of the connecting member 111. Both sides inside the mounting frame 501 are fixedly connected to a clamping plate 503 through a plurality of groups of second springs 502. Pressing grooves 504 are formed through both sides of the two clamping plates 503 facing each other and close to each other. A pull rod 505 is fixedly installed in the middle of the top of one of the clamping plates 503. The wire 113 is clamped and fixed between the two pressing grooves 504.

[0050] The working principle of the above-mentioned clamping mechanism 5 is as follows:

[0051] Connect the connection hole 110 to the wire 113. By pulling the pull rod 505, a plurality of groups of second springs 502 are all in a contracted state. Insert the wire 113 into the interior of the two pressing grooves 504. Release the pull rod 505. Under the action of the second springs 502 restoring their deformation, the clamping plates 503 are reset, achieving clamping of the wire 113.

[0052] The working principle and usage process of the present invention:

[0053] The above underwater measuring device is of an integrated structure. By providing a grip groove 101, it is convenient for users to hold and operate. A wire 113 is connected through a connection hole 110 on a display 108, and the other end of the wire 113 is connected to a data transmission module. The camera measures underwater, and the measurement situation is displayed by the display 108. The display 108 is arranged inside a protective box 107 to prevent the display 108 from being damaged by external impacts and also facilitate the storage of the display 108. Secondly, an installation mechanism 2 is provided to facilitate the installation and disassembly of the display 108, making it convenient for staff to repair and replace the display 108, which is fast and convenient. An opening and closing mechanism 3 is also provided to facilitate the opening and closing of the lid 109 on both sides. Then, a telescopic mechanism 4 is provided, which can drive the second sleeve 103, the third sleeve 104, and the fourth sleeve 105 to slide, changing the overall length of the device, and can be applied to measure at different underwater depths. A clamping mechanism 5 is also provided to clamp the wire 113, preventing the wire 113 from being too messy, improving the rigor of the design, and meeting the needs of users.

[0054] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the claims of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A handheld underwater photogrammetry device, comprising a base, characterized in that, The lower part of the base is provided with a grip groove, and the upper part is provided with a protective box. On both sides of the opening of the protective box, there is an electric side-opening box cover respectively. An installation and positioning mechanism is provided in the protective box. A display is fixed on the installation and positioning mechanism. The display is connected to a data transmission module through a wire. The data transmission module is installed in a data transmission box. A transparent box is installed at the end of the data transmission box. A camera is arranged inside the transparent box. The camera is connected to the data transmission module. The data transmission box is fixedly connected to the base.

2. The handheld underwater photogrammetry device according to claim 1, wherein The installation and positioning mechanism includes a housing. The housing is fixed in the protective box. There are three clamping members arranged around the housing. The three clamping members are arranged at the three corner points of an inverted isosceles triangle and are slidably fitted on the side wall of the housing. There are sliding grooves provided. They are connected to the same gear through racks. A limiting member is provided in the sliding groove of each clamping member. The limiting member is fixed in the housing. An elastic member is clamped between the limiting member at the bottom clamping member and the top of the limiting groove. The display is fixed between the three clamping members.

3. The hand-held underwater photogrammetry device according to claim 1, characterized in that, The two electric side-opening box covers are driven by an opening and closing screw drive mechanism. The opening and closing screw drive mechanism is installed in the protective box.

4. The handheld underwater photogrammetry device according to claim 3, wherein, At the upper and lower ends of the two box covers, there is a screw rod respectively. The screw rods are installed in the protective box. The thread directions on both sides are opposite. One of them is driven by a motor. The motor is installed outside the protective box. There is a moving block threadedly connected to both sides of each screw rod. The moving block is connected to the box cover. The two screw rods are connected by a belt arranged in the middle part between them.

5. The hand-held underwater photogrammetry device according to claim 2, wherein, The elastic member is provided with a first spring. An expansion rod is inserted into the first spring.

6. The hand-held underwater photogrammetry device according to claim 1, wherein, The data transmission box and the base are fixedly connected through a telescopic mechanism. The wire is fixed on the telescopic mechanism through a connecting member and a clamping structure. The clamping structure is arranged at the top of the connecting member. The connecting member is fixed on the telescopic mechanism.

7. The hand-held underwater photogrammetry device according to claim 6, characterized in that, The telescopic mechanism is provided with a plurality of sleeves connected in sequence and is internally provided with a scissor-type telescopic structure.

8. The hand-held underwater photogrammetry device according to claim 7, wherein, The scissor-type telescopic structure is provided with a scissor-type telescopic component. The scissor-type telescopic component is driven by a telescopic screw drive mechanism. The scissor-type telescopic component is provided with a limiting rod. The limiting rod is assembled in a guiding groove. The guiding groove is arranged inside the corresponding sleeve.

9. The hand-held underwater photogrammetry device according to claim 6, characterized in that, The clamping structure includes an installation frame. The installation frame is fixedly installed at the top end of the connecting member. Both sides inside the installation frame are fixedly connected to clamping plates through a plurality of groups of second springs. On the side of the two facing clamping plates close to each other, there is a pressing groove provided. In the middle of the top end of one clamping plate, a pull rod is fixedly installed. The wire is clamped and fixed between the two pressing grooves.

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