CN217716420U - Leveling rod supporting device for engineering measurement - Google Patents
Leveling rod supporting device for engineering measurement Download PDFInfo
- Publication number
- CN217716420U CN217716420U CN202221706609.7U CN202221706609U CN217716420U CN 217716420 U CN217716420 U CN 217716420U CN 202221706609 U CN202221706609 U CN 202221706609U CN 217716420 U CN217716420 U CN 217716420U
- Authority
- CN
- China
- Prior art keywords
- rod
- fixed frame
- frame
- installation frame
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to an engineering survey water levelling rod strutting arrangement, the bracing piece comprises a supporting bar, bracing piece quantity is a plurality ofly, installation frame of a plurality of upper end of the support bar fixedly connected with, inboard upper end of installation frame, lower extreme, left end are provided with a length adjustment mechanism respectively to be provided with a fixed frame between a plurality of length adjustment mechanisms, length adjustment mechanism lower extreme level is provided with a fixed plate, fixed plate and installation frame fixed connection run through from the top down on the fixed plate and be provided with an internal thread hole I to including I inside spiro union of screw hole have a screw, screw up end rotates with length adjustment mechanism to be connected, the fixed frame up end is provided with the level bubble, through rotating the screw, utilizes length adjustment mechanism and level bubble to make the user can directly finely tune the inclination between fixed frame and the installation frame, can make user's accommodation process more accurate and do not need the user to exert oneself additionally through the fine setting.
Description
Technical Field
The utility model relates to a measure strutting arrangement technical field, specifically be a leveling rod strutting arrangement for engineering survey.
Background
The leveling rod is a staff used for leveling measurement, which is also called as geometric leveling measurement, and is a method for measuring the height difference between two points on the ground by using a leveling instrument and the leveling rod. A level is arranged between two points on the ground, a leveling staff erected on the two points is observed, and the height difference between the two points is calculated according to the reading on the staff.
The auxiliary supporting device is often required to be utilized in the process of measuring by using the leveling rod to help the leveling rod to keep a vertical state so as to ensure the measuring precision.
The prior art device is mostly all with levelling rod joint in fixed frame, support fixed frame through a plurality of bracing pieces, thereby adjust the relative height of single bracing piece through the spirit bubble and calibrate fixed frame levelness, but we find only that it is not effective through the mode of adjustment bracing piece relative height in the in-service use process, quick adjustment fixed frame levelness, in practice because the limitation of regulation mode, the length change of bracing piece often presents the echelonment and changes, and can not become more meticulous the regulation, and the mode that a plurality of bracing pieces supported jointly also makes the bracing piece that needs length regulation in the actual accommodation process must be in unsettled state thereby make the user can normally exert oneself, make bracing piece length can adjust, this just leads to not only needing strutting arrangement to make the device can not topple over in the accommodation process in actual user, still make the user need adjust many times when guaranteeing that a plurality of bracing pieces contact with ground simultaneously, fixed frame can keep the horizontality.
Disclosure of Invention
Not enough to prior art, the utility model provides an engineering survey uses levelling rod strutting arrangement has and does not need the user additionally to exert oneself, and the user can direct observation fixed frame levelness and multiple mode adjust the advantage of guaranteeing the control range precision, has solved prior art device and can not become more meticulous, the accurate fixed frame levelness of adjusting and the adjustment process shortcoming that wastes time and energy.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an engineering survey water levelling rod strutting arrangement, includes the bracing piece, bracing piece quantity is a plurality of, installation frame of a plurality of upper end of the support bar fixedly connected with, inboard upper end of installation frame, lower extreme, left end are provided with a length adjustment mechanism respectively to be provided with a fixed frame between a plurality of length adjustment mechanisms, the vertical levelling rod that is provided with in the fixed frame, length adjustment mechanism includes the interior pole that the level set up, interior pole quantity is two, and two interior poles set up side by side, and two interior poles keep away from one end each other and have cup jointed a sleeve pipe respectively, sleeve pipe and interior pole sliding connection to one of them sleeve pipe is kept away from interior pole one end and fixed frame outside fixed connection relatively, and another sleeve pipe lower extreme level is provided with a fixed plate, fixed plate and installation frame fixed connection, from the top down run through on the fixed plate and are provided with an internal thread hole I to including I inside spiro union of screw hole has a screw, screw up end and sleeve pipe rotate to be connected, rotate through slewing mechanism between two interior poles and connect, the fixed frame up end is provided with the level bubble.
Preferably, the rotating mechanism comprises a connecting block and a rotating ball, a spherical groove is formed in one end, close to the rotating ball relatively, of the connecting block, the rotating ball is embedded into the spherical groove, the depth of the spherical groove is larger than the radius of the rotating ball and smaller than the diameter of the rotating ball, and the horizontal axis of the rotating ball coincides with the axis of the inner rod.
Preferably, both ends are provided with a pressure strip respectively about in the installation frame, and two pressure strips keep away from one end each other and are provided with position control mechanism respectively, and two pressure strips are close to one end each other and are fixedly connected with a slipmat respectively.
Preferably, position control mechanism includes the slide bar, slide bar quantity is two, controls the setting, and slide bar from the top down runs through fixed frame to slide bar and fixed frame sliding connection do linear motion from top to bottom for fixed frame, the slide bar is kept away from regulating plate of pressure strip one end fixedly connected with relatively, the part outside cover that the slide bar is located outside the installation frame is equipped with an extension spring, extension spring one end and regulating plate fixed connection, the other end and installation frame fixed connection.
Preferably, the inside vertical internal thread hole II that is provided with of slide bar to there is a screw rod through II spiro unions in internal thread hole, the screw rod is kept away from regulating plate one end relatively and is rotated with the pressure strip and be connected, fixedly connected with rotates the piece on the screw rod.
Preferably, the inner rod is sleeved with a resistance piece, and the outer side of the resistance piece is tightly attached to the sleeve.
Preferably, the installation frame cross section is "U" type to the U type opening of installation frame is towards the right-hand member, the fixed frame cross section is "U" type, and the U type opening of fixed frame is towards the right-hand member, bracing piece quantity is three, and bracing piece upper end respectively with installation frame outside upper end, lower extreme, left end fixed connection.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
the utility model discloses a mode of adjustment bracing piece carries out the coarse tune to the levelness of installation frame, through rotating the screw, utilizes length adjustment mechanism and slewing mechanism to mutually support and finely tune inclination between fixed frame and the installation frame, guarantees that fixed frame can be in the horizontality, thereby the levelness of the mode adjustment fixed frame of user's accessible direct observation level bubble makes user's accommodation process more accurate and does not need the user additionally to exert oneself in the fine setting process.
The utility model discloses a compression spring makes this device not need the user extra operation can carry out firm centre gripping to the levelling rod and fix and alleviate user's burden, saves user's time, and the screw rod mutually supports with the slide bar simultaneously also makes the application scope of this device wider.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the position relationship between the screw and the fixing plate of the present invention;
fig. 4 is the connection schematic diagram of the connection block and the rotating ball of the present invention.
In the figure: 1. mounting the frame; 2. a sleeve; 3. a screw; 4. a screw; 5. a slide bar; 6. a compression plate; 7. a leveling rod; 8. a non-slip mat; 9. a fixed frame; 10. an adjusting plate; 11. a support bar; 12. a rotating member; 13. an extension spring; 14. a resistance member; 15. a fixing plate; 16. horizontal bubble; 17; an inner rod; 18. rotating the ball; 19. and (7) connecting the block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-4, a leveling rod 7 supporting device for engineering measurement includes a supporting rod 11, in the actual use process, the supporting rod 11 can adopt different specifications, that is, supporting rods 11 with different lengths or supporting rods 11 with adjustable relative lengths, so that the basic fixed length of the leveling rod 7 can meet the actual requirements, wherein the supporting rod 11 with adjustable relative lengths can adopt a screw rod 4 and an internal threaded pipe to be matched with each other, and can also adopt a multi-section sleeve form to adjust the relative lengths of the supporting rods 11.
The 11 quantity of bracing piece is a plurality ofly, and installation frame 1 of 11 upper ends fixedly connected with of a plurality of bracing pieces to single bracing piece 11 has certain inclination and can firmly place through bracing piece 11 in order to guarantee that installation frame 1 is not influenced by external force and rocks at will.
The 1 cross section of installation frame is "U" type to the U type opening of installation frame 1 is towards the right-hand member, 11 quantity of bracing piece are three, and 11 upper ends of bracing piece respectively with 1 outside upper end of installation frame, lower extreme, left end fixed connection in order to guarantee the stability of installation frame 1 and 11 self structures of bracing piece through three point support.
A fixing frame 9 is horizontally arranged in the mounting frame 1, and a leveling rod 7 is vertically arranged in the fixing frame 9.
The cross section of the fixed frame 9 is U-shaped, the U-shaped opening of the fixed frame 9 faces the right end, the user can fix the leveling rod 7 in the U-shaped opening of the installation frame 1 in the actual use process, and the characteristics that the right end of the U-shaped opening is an open structure are utilized at the moment, so that the user can observe all data on the leveling rod 7 visually, and the leveling rod 7 reading is prevented from being influenced by the device.
Both ends are provided with a pressure strip 6 respectively about in the installation frame 1, make this device can carry out the adaptation to the levelling rod 7 of different specifications through changing the relative distance between two pressure strips 6, and relative distance is adjustable still makes the user can conveniently install levelling rod 7 between two pressure strips 6 simultaneously, and pressure strip 6 can form stable centre gripping to levelling rod 7.
One end of each of the two pressing plates 6 close to each other is fixedly connected with a non-slip mat 8 to prevent the leveling rod 7 from moving in position in the fixed frame 9.
The non-slip mat 8 can be made of rubber so as to utilize the characteristics of abrasion resistance, large friction coefficient and deformability of the rubber.
One ends of the two pressing plates 6, which are far away from each other, are respectively provided with a position adjusting mechanism so as to adjust the relative positions of the pressing plates 6.
The position adjusting mechanism comprises two sliding rods 5, the two sliding rods 5 are arranged left and right, the sliding rods 5 penetrate through the fixed frame 9 from top to bottom, the sliding rods 5 are connected with the fixed frame 9 in a sliding mode, and the sliding rods 5 move up and down linearly relative to the fixed frame 9 to drive the pressing plate 6 to change the relative position relative to the fixed frame 9 through the sliding rods 5.
The leveling rod 5 is vertically internally provided with an internal threaded hole II, the threaded hole II is in threaded connection with a screw rod 4, one end, far away from an adjusting plate 10, of the screw rod 4 is rotatably connected with a pressing plate 6, the screw rod 4 is rotated by a user to change the relative position between the screw rod 4 and the sliding rod 5 through threaded connection, namely the relative length of the screw rod 4 and the whole sliding rod 5 is changed, in the actual use process, the relative position between two pressing plates 6 in the initial state can be changed through changing the relative length of the screw rod 4 and the whole sliding rod 5, namely the smaller the relative distance between the two pressing plates 6 is, the larger the action range of the device is, the device can be used for leveling rods 7 with multiple specifications, meanwhile, when the specification of the leveling rod 7 is not changed, the smaller the relative distance between the two pressing plates 6 in the initial state is, when the leveling rod 7 is positioned between the two pressing plates 6, the larger the deformation of the tension spring 13 is, the larger the pressing force applied to the leveling rod 7 by the pressing plate 6 is, the leveling rod 7 is clamped, and the effect on the leveling rod 7 is good, and the better the leveling rod 7 is a hollow structure, and the user needs to determine the deformation of the tension spring 13 according to avoid damage.
The screw rod 4 is fixedly connected with a rotating part 12 so that a user can rotate the screw rod 4 conveniently, the user can manually control the sliding rod 5 not to rotate or control the sliding rod 5 not to rotate by utilizing a limiting mechanism in the actual use process, the limiting mechanism can adopt a limiting block fixed on the outer side of the sliding rod 5, and the limiting mode of the sliding rod 5 is limited by arranging a limiting groove aiming at the limiting block on the fixed frame 9.
The turning member 12 may take a variety of forms, such as a hand wheel, a turning lever, etc.
And a length adjusting mechanism is respectively arranged at the upper end, the lower end and the left end between the installation frame 1 and the fixed frame 9.
Length adjustment mechanism includes the interior pole 17 that the level set up, interior pole 17 quantity is two, and two interior poles 17 set up side by side, and two interior poles 17 keep away from one end each other and have cup jointed a sleeve pipe 2 respectively, thereby sleeve pipe 2 and interior pole 17 sliding connection can change the relative position between interior pole 17 and the sleeve pipe 2 through sliding connection and change length adjustment mechanism's relative length, simultaneously again because sliding connection, so fixed frame 9 can not change the relative position for installation frame 1, and two length adjustment mechanisms at upper and lower both ends will restrict fixed frame 9 and can not be for installation frame 1 and do left and right linear motion because sliding connection, and the length adjustment mechanism of left end will restrict fixed frame 9 and can not be for installation frame 1 and do up-and-down linear motion.
One end of one of the sleeves 2, which is relatively far away from the inner rod 17, is fixedly connected with the outer side of the fixed frame 9.
The lower end of the other sleeve 2 is horizontally provided with a fixing plate 15, and the fixing plate 15 is fixedly connected with the mounting frame 1 to ensure that the fixing plate 15 does not change its position relative to the mounting frame 1.
The fixing plate 15 is provided with an internal threaded hole I in a penetrating mode from top to bottom, a screw 3 is screwed in the internal threaded hole I, the relative position of the fixing plate 15 and the screw 3 can be changed through the screw 3 in a threaded connection mode, and the relative height of the upper end face of the screw rod 4 is changed.
The upper end surfaces of said screws 3 are rotatably connected to the sleeves 2, i.e. the relative position of the sleeves 2 relatively close to the mounting frame 1 can be changed by rotating the screws 3, and the sleeves 2 relatively close to the mounting frame 1 will remain horizontal all the time due to the rotatable connection, when the relative height of one of the sleeves 2 relatively close to the mounting frame 1 does not correspond to the relative height of the remaining sleeves 2, the fixing frame 9 will tilt relative to the mounting frame 1.
The two inner rods 17 are rotatably connected through a rotating mechanism so that the fixed frame 9 can be inclined relative to the mounting frame 1 by rotatably connecting the inner rods 17 and the sleeve 2 in a sliding manner, and stroke conflict does not occur between the mounting frame 1 and the fixed frame 9.
The rotating mechanism comprises a connecting block 19 and a rotating ball 18, wherein a spherical groove is formed in one end, relatively close to the rotating ball 18, of the connecting block 19, and the rotating ball 18 is embedded in the spherical groove so that the rotating ball 18 can rotate relative to the connecting block 19 and the rotating ball 18 can change the angle relative to the connecting block 19.
The horizontal axis of the rotating ball 18 coincides with the axis of the inner rod 17, so that the device can normally operate, and stroke conflict does not occur between the mounting frame 1 and the fixed frame 9.
The depth of the spherical groove is larger than the radius of the rotating ball 18 and smaller than the diameter of the rotating ball 18 so as to prevent the rotating ball 18 from falling out of the spherical groove and ensure that the rotating ball 18 can change the angle relative to the connecting block 19.
The resistance element 14 may also be made of rubber to take advantage of the high friction coefficient and deformability of rubber.
The fixed frame 9 is provided with a horizontal bubble 16 to help a user to accurately control the levelness of the fixed frame 9.
The working principle is as follows: the utility model discloses thereby at first need confirm 11 relative length of bracing piece in the in-service use process with the relative height of confirming installation frame 1 can with levelling rod 7 phase-match, terminal surface relative height or bracing piece 11 relative length carry out the coarse adjustment to installation frame 1 levelness under later through the adjustment support pole 11, guarantee that installation frame 1 can roughly be in the horizontality, pass through turnscrew 3 afterwards, utilize length adjustment mechanism and slewing mechanism to mutually support, the user finely tunes the inclination between fixed frame 9 and the installation frame 1 through the mode of the horizontal bubble 16 of audio-visual observation, utilize horizontal bubble 16 to guarantee that fixed frame 9 can be in the horizontality, last user is through screw rod 4 and the mutual relative distance of adjusting between two pressure strips 6 of slide bar 5, utilize extension spring 13 to form firm fixed to levelling rod 7.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an engineering survey is with levelling rod (7) strutting arrangement, includes bracing piece (11), bracing piece (11) quantity is a plurality of, installation frame (1) of a plurality of bracing pieces (11) upper end fixedly connected with, its characterized in that: the upper end, the lower end and the left end of the inner side of the installation frame (1) are respectively provided with a length adjusting mechanism, a fixed frame (9) is arranged among the length adjusting mechanisms, and a leveling rod (7) is vertically arranged in the fixed frame (9);
the length adjusting mechanism comprises two horizontally arranged inner rods (17), the two inner rods (17) are arranged in parallel, one ends, far away from each other, of the two inner rods (17) are respectively sleeved with a sleeve (2), the sleeves (2) are connected with the inner rods (17) in a sliding mode, and one end, far away from the inner rods (17), of one sleeve (2) is fixedly connected with the outer side of the fixed frame (9);
a fixing plate (15) is horizontally arranged at the lower end of the other sleeve (2), the fixing plate (15) is fixedly connected with the mounting frame (1), an internal threaded hole I is formed in the fixing plate (15) in a penetrating mode from top to bottom, a screw (3) is screwed in the internal threaded hole I, and the upper end face of the screw (3) is rotatably connected with the sleeve (2);
the two inner rods (17) are rotationally connected through a rotating mechanism;
and a horizontal bubble (16) is arranged on the upper end surface of the fixed frame (9).
2. A leveling rod (7) supporting device for engineering measurement according to claim 1, characterized in that: the rotating mechanism comprises a connecting block (19) and a rotating ball (18), a spherical groove is formed in one end, close to the rotating ball (18), of the connecting block (19), and the rotating ball (18) is embedded into the spherical groove;
the depth of the spherical groove is greater than the radius of the rotating ball (18) and less than the diameter of the rotating ball (18);
the horizontal axis of the rotating ball (18) is coincident with the axis of the inner rod (17).
3. A leveling rod (7) supporting device for engineering measurement according to claim 1, characterized in that: the upper end and the lower end of the mounting frame (1) are respectively provided with a pressing plate (6), and one ends, far away from each other, of the two pressing plates (6) are respectively provided with a position adjusting mechanism;
one ends of the two pressing plates (6) close to each other are fixedly connected with an anti-skid pad (8) respectively.
4. A leveling rod (7) supporting device for engineering measurement according to claim 3, characterized in that: the position adjusting mechanism comprises two sliding rods (5), the two sliding rods (5) are arranged left and right, the sliding rods (5) penetrate through the fixed frame (9) from top to bottom, and the sliding rods (5) are connected with the fixed frame (9) in a sliding mode and do vertical linear motion relative to the fixed frame (9);
slide bar (5) are kept away from regulating plate (10) of pressure strip (6) one end fixedly connected with relatively, slide bar (5) are located the outside cover of the outer part of installation frame (1) and are equipped with an extension spring (13), extension spring (13) one end and regulating plate (10) fixed connection, the other end and installation frame (1) fixed connection.
5. A leveling rod (7) supporting device for engineering measurement according to claim 4, characterized in that: an internal threaded hole II is vertically formed in the sliding rod (5), a screw rod (4) is connected through the internal threaded hole II in a threaded mode, and one end, far away from the adjusting plate (10), of the screw rod (4) is rotatably connected with the pressing plate (6);
the screw rod (4) is fixedly connected with a rotating part (12).
6. A leveling rod (7) supporting device for engineering measurement according to claim 1, characterized in that: the inner rod (17) is sleeved with a resistance piece (14), and the outer side of the resistance piece (14) is tightly attached to the sleeve (2).
7. A leveling rod (7) supporting device for engineering measurement according to claim 1, characterized in that: the cross section of the mounting frame (1) is U-shaped, and the U-shaped opening of the mounting frame (1) faces the right end;
the cross section of the fixed frame (9) is U-shaped, and the U-shaped opening of the fixed frame (9) faces the right end;
the number of the support rods (11) is three, and the upper ends of the support rods (11) are fixedly connected with the upper end, the lower end and the left end of the outer side of the installation frame (1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221706609.7U CN217716420U (en) | 2022-07-04 | 2022-07-04 | Leveling rod supporting device for engineering measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221706609.7U CN217716420U (en) | 2022-07-04 | 2022-07-04 | Leveling rod supporting device for engineering measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217716420U true CN217716420U (en) | 2022-11-01 |
Family
ID=83777467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221706609.7U Active CN217716420U (en) | 2022-07-04 | 2022-07-04 | Leveling rod supporting device for engineering measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217716420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116136284A (en) * | 2023-04-04 | 2023-05-19 | 山东省国土测绘院 | Survey and drawing geographic information engineering data acquisition device |
-
2022
- 2022-07-04 CN CN202221706609.7U patent/CN217716420U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116136284A (en) * | 2023-04-04 | 2023-05-19 | 山东省国土测绘院 | Survey and drawing geographic information engineering data acquisition device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217716420U (en) | Leveling rod supporting device for engineering measurement | |
| CN219036175U (en) | Detachable bracket for surveying and mapping | |
| CN216408349U (en) | Novel mapping device based on use in building construction | |
| CN213333443U (en) | Surveyor's level for architectural surveying | |
| CN211373575U (en) | Automatic correction level | |
| CN210221071U (en) | Auxiliary sighting device of level | |
| CN214037579U (en) | Auxiliary leveling device for laser level capable of adapting to various terrains | |
| CN210464482U (en) | Survey and drawing laying-out device based on computer BIM | |
| CN211425443U (en) | Road and bridge construction measuring device | |
| CN110296309A (en) | A kind of leveling auxiliary device based on bracket | |
| CN215294323U (en) | Measuring device for engineering design | |
| CN215173537U (en) | Novel surveyor's level for construction | |
| CN111664831A (en) | Special measuring device of architectural design | |
| CN215569209U (en) | Surveying instrument support | |
| CN216558981U (en) | North seeker mounting base | |
| CN216385605U (en) | Surveyor's level for construction | |
| CN110701452A (en) | On-spot measurement auxiliary device based on accurate cost management | |
| CN214096064U (en) | Measuring device for civil engineering | |
| CN219391287U (en) | Deflection measuring device for bridge monitoring | |
| CN219013808U (en) | Level gauge for surveying and mapping engineering | |
| CN219221892U (en) | Level gauge suitable for various field uneven ground | |
| CN217843401U (en) | Measuring device for building planning design | |
| CN219530324U (en) | Device for keeping level of test instrument for site | |
| CN219389278U (en) | Correctable laser mapping device based on engineering mapping | |
| CN212229158U (en) | Infrared range finder support for garden measurement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |