CN115950408A - Distance measuring device with multiple carrying modes - Google Patents
Distance measuring device with multiple carrying modes Download PDFInfo
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- CN115950408A CN115950408A CN202310237972.1A CN202310237972A CN115950408A CN 115950408 A CN115950408 A CN 115950408A CN 202310237972 A CN202310237972 A CN 202310237972A CN 115950408 A CN115950408 A CN 115950408A
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- 239000002184 metal Substances 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 239000000523 sample Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000005299 abrasion Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 description 10
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a distance measuring device which can be carried and used in multiple modes, and relates to the technical field of civil engineering. This possess multiple mode and carry range unit who uses, the going out of having made things convenient for range unit to carry through protective housing and handle subassembly, and be provided with and read the subassembly, cooperation range finding host computer, can realize the automatic reading and the record of range finding data, and can drive metal lead screw thread sleeve inner wall rotation through servo motor, thereby it is at the inside translation of accuse inflator to drive the piston body, will pass through in the combination pipe gets into the accuse inflator with the air in the connection space between round bottom sucking disc and the ground, make the device can stably fix at the range finding initial point, single can accomplish the range finding operation.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a distance measuring device which can be carried and used in multiple modes.
Background
A distance measuring device, i.e., a device for measuring a distance, is one of basic measuring devices for various kinds of construction, and is widely used in various industries. In the actual measurement of civil engineering, a distance measuring device is indispensable, and the distance measuring device used differs according to the measurement situation. However, the current distance measuring device still has the following disadvantages:
firstly, the existing distance measuring device is inconvenient to carry, the device is easy to damage in the carrying process, so that the device cannot be used continuously, or a complex outer protection structure is arranged, so that the device needs to spend time to dismantle the outer protection structure before being used, and the device is not favorable for quick expansion of distance measuring work;
secondly, the current range unit generally needs the cooperation of assistance more than two people to use, and single can't accomplish the range finding operation, is unfavorable for saving civil survey's human cost to the probability of human error has been improved, has brought the inconvenience for range unit's use.
Therefore, there is a need to improve the disadvantages, and the present invention is to provide a portable distance measuring device with multiple modes for improving the existing structure and disadvantages.
Disclosure of Invention
The present invention is directed to a portable distance measuring device with multiple modes to solve the problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a possess multiple mode and carry range unit who uses, includes control box, adjustable shelf and accuse gas cylinder, there is the protective housing at the top of control box through hinge swing joint, and the top of protective housing is provided with the handle subassembly to the top fixed mounting of control box has the range finding host computer, and the top of control box is fixed with the tape measure structure moreover, and the top fixedly connected with of control box reads the subassembly simultaneously, there is the chamber door openly through hinge swing joint of control box, and the inside of control box is fixed with the baffle, and the spacing slide rail of top fixedly connected with of baffle, adjustable shelf movable mounting is in the inside of control box, and the outer wall fixedly connected with spacing saddle of adjustable shelf to the internally mounted of adjustable shelf has servo motor, and servo motor's output shaft has a piston assembly through the coupling joint, accuse gas cylinder fixed mounting is in the inside of control box, and the left side wall of accuse gas cylinder inlays and is equipped with the threaded sleeve, and the accuse gas cylinder runs through with the piston assembly and links to each other, the right side wall fixedly connected with combination pipe, and the end connection of combination pipe has the ground subassembly to ground sucking subassembly is fixed mounting in the bottom of control box.
Further, the handle subassembly is including half left, magnetite piece, half right and little iron plate, and half left fixed mounting at the top of protective housing to half one side gomphosis of left installs the magnetite piece, and half one side adherence of left is connected with half right in addition, and half one side gomphosis of right side simultaneously installs little iron plate.
Furthermore, read the subassembly including bottom plate, first spacing frame and the spacing frame of second, and the top of control box is fixed with the bottom plate to the first spacing frame of top fixedly connected with of bottom plate, the spacing frame of top fixedly connected with second of bottom plate moreover.
Furthermore, the reading assembly further comprises an installation frame and a data reading probe, the installation frame is fixedly connected to the top of the bottom plate, the data reading probe is fixedly installed on the inner top wall of the installation frame, and the installation frame is located between the first limiting frame and the second limiting frame.
Furthermore, the movable frame and the limiting slide rail form a sliding structure through the limiting slide piece, the limiting slide piece slides along the inner wall of the limiting slide rail, and the inner size of the limiting slide rail is completely matched with the outer size of the limiting slide rail.
Furthermore, the piston assembly comprises a metal lead screw, a connecting bearing, a piston body and an anti-abrasion sealing ring, one end of the metal lead screw is fixedly connected with an output shaft of the servo motor, the other end of the metal lead screw is fixedly connected with the connecting bearing, the outer wall of the connecting bearing is fixedly connected with the piston body, and the outer wall of the piston body is fixedly connected with the anti-abrasion sealing ring.
Furthermore, the outer wall of the threaded sleeve is fixedly connected with the left side wall of the gas control cylinder, the inner wall of the threaded sleeve is in threaded connection with the inner wall of the metal lead screw, and the metal lead screw is connected with the left side wall of the gas control cylinder in a penetrating mode through the threaded sleeve.
Furthermore, the combination pipe comprises a first connecting pipe, a flange plate, a multi-connection pipe and a second connecting pipe, one end of the first connecting pipe is communicated with the right side wall of the gas control cylinder, the other end of the first connecting pipe is fixedly connected with the flange plate, the bottom of the flange plate is fixedly connected with the multi-connection pipe, and the end part of the multi-connection pipe is fixedly connected with the second connecting pipe.
Furthermore, the end part of the second connecting pipe penetrates through the inner bottom wall of the control box and extends to the bottom of the control box, and the second connecting pipe is connected with the ground suction assembly in a penetrating mode.
Further, inhale ground subassembly including connecting plate, fastening bolt, fixed pipeline and round bottom sucking disc, and the bottom threaded connection of connecting plate has fastening bolt to the connecting plate passes through fastening bolt fixed mounting in the bottom of control box, and the bottom fixedly connected with fixed pipeline of connecting plate moreover, the bottom fixedly connected with round bottom sucking disc of connecting plate simultaneously.
The invention provides a distance measuring device which can be carried and used in multiple modes, and has the following beneficial effects: this possess multiple mode and carry range unit who uses, the going out of having made things convenient for range unit to carry through protective housing and handle subassembly, and be provided with and read the subassembly, cooperation range finding host computer, can realize the automatic reading and the record of range finding data, and can drive metal lead screw thread sleeve inner wall rotation through servo motor, thereby it is at the inside translation of accuse inflator to drive the piston body, will pass through in the combination pipe gets into the accuse inflator with the air in the connection space between round bottom sucking disc and the ground, make the device can stably fix at the range finding initial point, single can accomplish the range finding operation.
1. The improved distance measuring device is convenient to carry, a protection structure is arranged outside the device in the carrying process, the device is not easy to damage, meanwhile, the distance measuring device can be directly used after the protection cover is opened, the operation process is convenient and fast, splicing and assembling are not needed, and the use of the distance measuring device is convenient.
2. The improved distance measuring device is not matched with two persons for use any more, can be stably fixed at a measuring starting point, can finish distance measuring operation by one person, saves labor cost of civil measurement, and brings convenience to the use of the distance measuring device.
3. The improved distance measuring device is convenient to read and store measured values, can automatically finish data reading and recording operations, avoids artificial errors caused by manual recording and reading, and improves the accuracy of distance measurement.
Drawings
FIG. 1 is a schematic perspective view of a portable distance measuring device of the present invention;
FIG. 2 is a schematic view of an unfolding structure of a protective cover case of a distance measuring device of the present invention;
FIG. 3 is a schematic cross-sectional view of a distance measuring device of the present invention, which can be carried and used in various ways;
FIG. 4 is an enlarged view of the structure A in FIG. 3 of a range finder device with multiple modes for carrying and using according to the present invention;
FIG. 5 is a schematic view of a fixed pipe-round bottom suction cup structure connection with a multi-mode portable distance measuring device according to the present invention;
FIG. 6 is a schematic view of a handle assembly of the present invention with a range finder that can be carried and used in various ways;
FIG. 7 is a schematic cross-sectional view of a gas control cylinder with a distance measuring device that can be carried and used in various ways according to the present invention;
fig. 8 is a right side sectional view of a position-limiting slide of a distance measuring device of the present invention.
In the figure: 1. a control box; 2. a protective housing; 3. a handle assembly; 301. the left half handle; 302. a magnet block; 303. a right half handle; 304. a small iron block; 4. a distance measuring host; 5. a tape measure construction; 6. a reading component; 601. a base plate; 602. a first limit frame; 603. a second limit frame; 604. a mounting frame; 605. a data reading probe; 7. a box door; 8. a partition plate; 9. a limiting slide rail; 10. a movable frame; 11. a limit slider; 12. a servo motor; 13. a piston assembly; 1301. a metal screw rod; 1302. connecting a bearing; 1303. a piston body; 1304. an anti-abrasion sealing ring; 14. an air control cylinder; 15. a threaded bushing; 16. a combination tube; 1601. a first connecting pipe; 1602. a flange plate; 1603. a multi-connected pipe; 1604. a second connecting pipe; 17. a ground suction assembly; 1701. a connecting plate; 1702. fastening a bolt; 1703. fixing the pipeline; 1704. a round bottom suction cup.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, fig. 2 and fig. 6, a possesses range unit that multiple mode carried and used, including control box 1, adjustable shelf 10 and accuse gas cylinder 14, there is protecting housing 2 at the top of control box 1 through hinge swing joint, and the top of protecting housing 2 is provided with handle component 3, handle component 3 is including left half 301, magnetite piece 302, right half 303 and little iron plate 304, and left half 301 fixed mounting is at the top of protecting housing 2, and left half 301 one side gomphosis installs magnetite piece 302, and left half 301 one side adherence is connected with right half 303, and right half one side adherence of 301 is connected with right half 303, and right half one side gomphosis of 303 installs little iron plate 304 simultaneously, through magnetite piece 302 and little iron plate 304 that set up, it is continuous to have made things convenient for left half 301 and right half 303 to adsorb, thereby made things convenient for the split and the concatenation of protecting housing 2, not only has made things convenient for range unit's use, can play the guard action when the device does not use, and control box 1's top fixed mounting has range unit 4, and control box 1's top is fixed with tape structure 5, and the top reading control box's 6 is connected with the reading control box's top is connected with.
As shown in fig. 2, 3 and 4, a distance measuring host 4 is fixedly mounted on the top of the control box 1, and a tape measure structure 5 is fixed on the top of the control box 1, and a reading assembly 6 is fixedly connected to the top of the control box 1, the reading assembly 6 includes a bottom plate 601, a first limit frame 602 and a second limit frame 603, and the bottom plate 601 is fixed on the top of the control box 1, and the first limit frame 602 is fixedly connected to the top of the bottom plate 601, and the second limit frame 603 is fixedly connected to the top of the bottom plate 601, through the first limit frame 602 and the second limit frame 603, the tape measure body released from the tape measure structure 5 can be limited, the reading assembly 6 further includes a mounting frame 604 and a data reading probe 605, and the mounting frame 604 is fixedly connected to the mounting frame 604 on the top of the bottom plate 601, and a data reading probe 605 is fixedly mounted on the inner top wall of the mounting frame 604, and the mounting frame 604 is located between the first limit frame 602 and the second limit frame 603, and through the mounting frame 605, the data reading probe can be mounted directly above the tape measure body passing through the path, thereby facilitating data reading.
As shown in fig. 2, 3, 5, 7 and 8, a door 7 is movably connected to the front of the control box 1 through a hinge, a partition 8 is fixed inside the control box 1, a limit slide rail 9 is fixedly connected to the top of the partition 8, the movable frame 10 is movably installed inside the control box 1, a limit slide 11 is fixedly connected to the outer wall of the movable frame 10, the movable frame 10 and the limit slide rail 9 form a sliding structure through the limit slide 11, the limit slide 11 slides along the inner wall of the limit slide rail 9, the inner dimension of the limit slide rail 9 completely matches the outer dimension of the limit slide 11, the moving track of the movable frame 10 can be limited through the limit slide rail 9 and the limit slide 11, the servo motor 12 is installed inside the movable frame 10, the output shaft of the servo motor 12 is connected to a piston assembly 13 through a coupler, the piston assembly 13 includes a metal lead screw 1301, a connecting bearing 1302, a piston 1303 and an anti-wear seal ring 1304, one end of the metal lead screw 1301 is fixedly connected to the output shaft of the servo motor 12, the piston 1303 is connected to the outer wall of the bearing 1303, and the piston 1304 is connected to an anti-wear seal ring 1304, and the piston 1304 is connected to the outer wall of the bearing 1302, and the piston 1304. The anti-wear effect can be achieved outside the piston body 1303, the air tightness can be enhanced, the air control cylinder 14 is fixedly installed inside the control box 1, the threaded sleeve 15 is embedded in the left side wall of the air control cylinder 14, the air control cylinder 14 is connected with the piston assembly 13 in a penetrating manner, the outer wall of the threaded sleeve 15 is fixedly connected with the left side wall of the air control cylinder 14, the inner wall of the threaded sleeve 15 is in threaded connection with the inner wall of the metal lead screw 1301, the metal lead screw 1301 is connected with the left side wall of the air control cylinder 14 in a penetrating manner through the threaded sleeve 15, the metal lead screw 1301 can drive the inner wall of the sub air control cylinder 14 to translate through rotation along the inner wall of the threaded sleeve 15 through the arranged threaded sleeve 15, the right side wall of the air control cylinder 14 is fixedly connected with the combined pipe 16, the combined pipe 16 comprises a first connecting pipe 1601, a flange 1602, a multi-connected pipe 1603 and a second connecting pipe 1604, and one end of the first connecting pipe 1601 is connected with the right side wall of the air control cylinder 14 in a penetrating manner, and the other end of the first connecting pipe 1601 is fixedly connected with a flange 1602, the bottom of the flange 1602 is fixedly connected with a multi-connection pipe 1603, the end of the multi-connection pipe 1603 is fixedly connected with a second connection pipe 1604, the end of the second connection pipe 1604 penetrates through the inner bottom wall of the control box 1 and extends to the bottom of the control box 1 through the arranged flange 1602 and multi-connection pipe 1603, the end of the combined pipe 16 is connected with a ground suction assembly 17, the ground suction assembly 17 is fixedly arranged at the bottom of the control box 1, the ground suction assembly 17 comprises a connecting plate 1701, a fastening bolt 1702, a fixed pipe 1703 and a suction cup 1704, the bottom of the connecting plate 1701 is in threaded connection with the fastening bolt 1702, and the connecting plate 1701 is fixedly arranged at the bottom of the control box 1 through the fastening bolt 1702, and the bottom fixedly connected with fixed pipeline 1703 of connecting plate 1701, the bottom fixedly connected with round bottom sucking disc 1704 of connecting plate 1701 simultaneously, through the round bottom sucking disc 1704 that sets up, can be with the device absorption fixed at the range finding initial point.
In summary, as shown in fig. 1 to 8, the working principle of the portable distance measuring device with various modes is as follows: firstly, the handle assembly 3 is held by hand to lift the device to a distance measurement origin, then the left half handle 301 and the right half handle 303 are pulled apart to separate the magnet block 302 from the small iron block 304, and then the protective cover 2 is unfolded, at this time, the device is in the state shown in fig. 2, then the control box 1 is pressed downwards, the round-bottom suction cup 1704 is adsorbed on the ground, the servo motor 12 in the control box 1 is controlled by the distance measurement host 4 to start, the servo motor 12 is used for driving the metal lead screw 1301 to rotate along the inner wall of the threaded sleeve 15, so that the piston body 1303 and the anti-abrasion sealing ring 1304 are driven to translate leftwards in the air cylinder 14, the limiting sliders 11 on the upper side and the lower side of the movable frame 10 slide along the inner wall of the limiting slide rail 9, as the piston body 1303 translates leftwards in the air cylinder 14, the residual air in the connecting gap between the suction cup 1704 and the ground enters the air cylinder 14 through the combined pipe 16, so that the ground connection of the ground suction assembly 17 is tighter, after the device is fixed at the measurement origin, the end of the tape body released from the first tape body and the second tape frame 603, the distance measurement host is read and the data is automatically read by the distance measurement probe 603, and the distance measurement host 4.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The distance measuring device comprises a control box (1), a movable frame (10) and a gas control cylinder (14), and is characterized in that the top of the control box (1) is movably connected with a protective cover shell (2) through a hinge, the top of the protective cover shell (2) is provided with a handle assembly (3), the top of the control box (1) is fixedly provided with a distance measuring host (4), the top of the control box (1) is fixedly provided with a tape measure structure (5), the top of the control box (1) is fixedly connected with a reading assembly (6), the front of the control box (1) is movably connected with a box door (7) through a hinge, the inside of the control box (1) is fixedly provided with a partition plate (8), the top of the partition plate (8) is fixedly connected with a limiting slide rail (9), the movable frame (10) is movably arranged in the control box (1), the outer wall of the movable frame (10) is fixedly connected with a limiting slide rail (11), the inside of the movable frame (10) is provided with a servo motor (12), the output shaft of the servo motor (12) is connected with a piston assembly (13) through a coupler, the gas control cylinder (14) is fixedly arranged in the movable frame (1), and a control cylinder (14) penetrates through a screw thread control sleeve (14), the right side wall of the air control cylinder (14) is fixedly connected with a combined pipe (16), the end part of the combined pipe (16) is connected with a ground suction assembly (17), and the ground suction assembly (17) is fixedly installed at the bottom of the control box (1).
2. The portable range finder with multiple modes according to claim 1, wherein the handle assembly (3) comprises a left half handle (301), a magnet block (302), a right half handle (303) and a small iron block (304), the left half handle (301) is fixedly installed on the top of the protective housing (2), the magnet block (302) is installed on one side of the left half handle (301) in an embedded mode, the right half handle (303) is connected to one side of the left half handle (301) in an attached mode, and the small iron block (304) is installed on one side of the right half handle (303) in an embedded mode.
3. The distance measuring device with multiple portable modes according to claim 1, wherein the reading assembly (6) comprises a bottom plate (601), a first limiting frame (602) and a second limiting frame (603), the bottom plate (601) is fixed on the top of the control box (1), the first limiting frame (602) is fixedly connected to the top of the bottom plate (601), and the second limiting frame (603) is fixedly connected to the top of the bottom plate (601).
4. The multi-mode portable range finder according to claim 3, wherein the reading assembly (6) further comprises a mounting frame (604) and a data reading probe (605), the mounting frame (604) is fixedly connected to the top of the bottom plate (601), the data reading probe (605) is fixedly mounted on the inner top wall of the mounting frame (604), and the mounting frame (604) is located between the first limiting frame (602) and the second limiting frame (603).
5. The portable multi-mode portable range finder according to claim 1, wherein the movable frame (10) and the limit slide (9) form a sliding structure through a limit slide (11), the limit slide (11) slides along the inner wall of the limit slide (9), and the inner dimension of the limit slide (9) is completely matched with the outer dimension of the limit slide (11).
6. The portable distance measuring device with multiple modes for use according to claim 1, wherein the piston assembly (13) comprises a metal screw (1301), a connecting bearing (1302), a piston body (1303) and an anti-abrasion sealing ring (1304), one end of the metal screw (1301) is fixedly connected with an output shaft of the servo motor (12), the other end of the metal screw (1301) is fixedly connected with the connecting bearing (1302), the outer wall of the connecting bearing (1302) is fixedly connected with the piston body (1303), and the outer wall of the piston body (1303) is fixedly connected with the anti-abrasion sealing ring (1304).
7. The portable distance measuring device with multiple modes for use according to claim 6, wherein the outer wall of the threaded sleeve (15) is fixedly connected with the left side wall of the air control cylinder (14), the inner wall of the threaded sleeve (15) is in threaded connection with the inner wall of the metal lead screw (1301), and the metal lead screw (1301) is in through connection with the left side wall of the air control cylinder (14) through the threaded sleeve (15).
8. The portable range finder with multiple modes according to claim 1, wherein the combined pipe (16) comprises a first connecting pipe (1601), a flange (1602), a multiple connecting pipe (1603) and a second connecting pipe (1604), one end of the first connecting pipe (1601) is connected with the right side wall of the air control cylinder (14) in a penetrating manner, the other end of the first connecting pipe (1601) is fixedly connected with the flange (1602), the bottom of the flange (1602) is fixedly connected with the multiple connecting pipe (1603), and the end of the multiple connecting pipe (1603) is fixedly connected with the second connecting pipe (1604).
9. The portable multi-way distance measuring device of claim 8, wherein the end of the second connecting pipe (1604) extends through the inner bottom wall of the control box (1) to the bottom of the control box (1), and the second connecting pipe (1604) is connected with the ground suction assembly (17) in a penetrating way.
10. The portable range finder with multiple modes according to claim 1, wherein the ground suction assembly (17) comprises a connecting plate (1701), fastening bolts (1702), fixed pipes (1703) and round-bottom suction cups (1704), the fastening bolts (1702) are connected to the bottom of the connecting plate (1701) in a threaded manner, the connecting plate (1701) is fixedly installed at the bottom of the control box (1) through the fastening bolts (1702), the fixed pipes (1703) are fixedly connected to the bottom of the connecting plate (1701), and the round-bottom suction cups (1704) are fixedly connected to the bottom end of the connecting plate (1701).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310237972.1A CN115950408A (en) | 2023-03-14 | 2023-03-14 | Distance measuring device with multiple carrying modes |
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| CN202310237972.1A CN115950408A (en) | 2023-03-14 | 2023-03-14 | Distance measuring device with multiple carrying modes |
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