CN111502289A - Concrete laser leveling machine - Google Patents
Concrete laser leveling machine Download PDFInfo
- Publication number
- CN111502289A CN111502289A CN202010404686.6A CN202010404686A CN111502289A CN 111502289 A CN111502289 A CN 111502289A CN 202010404686 A CN202010404686 A CN 202010404686A CN 111502289 A CN111502289 A CN 111502289A
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- China
- Prior art keywords
- vibration
- strip
- handle
- shake
- concrete
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/10—Devices for levelling, e.g. templates or boards
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
Abstract
The invention provides a concrete laser leveling machine, which structurally comprises a supporting and dredging frame, a leveling machine table, a rotary control rotary table, movable wheels, a laser calibration locking frame and a vibration compensation leveling device, wherein the supporting and dredging frame is welded with the leveling machine table, the rotary control rotary table is arranged above the leveling machine table, two movable wheels are arranged on the left side and the right side of the leveling machine table respectively, and the laser calibration locking frame is welded with the vibration compensation leveling device.
Description
Technical Field
The invention belongs to the field of concrete, and particularly relates to a concrete laser leveling machine.
Background
When large tracts of land concrete ground construction, adopt the laser evener, vibrate newly-built concrete, flattening and control ground elevation, the concrete laser evener is by laser guide for a machine equipment of making level, flattening concrete, because the laser control plane of laser beam rotation formation that the laser concrete evener can launch through the transmitter, and then play stable regulation and control to the horizontal plane of its flattening.
Based on the above description, the inventor finds that the existing concrete laser leveling machine mainly has the following defects, such as:
because the flattening board makes the concrete face can demonstrate the horizontality through the flattening of vibrating, and the concrete is because its flattening process needs time after laying to in the place that the scope is bigger than normal, the flattening region of back appears excessively volatile state easily, and then leads to its flattening board to appear local concave surface condition bigger than normal easily after to this regional flattening.
Disclosure of Invention
In order to solve the technical problems, the invention provides a concrete laser leveling machine, which aims to solve the problems that the concrete surface can present a horizontal state due to the leveling of a leveling plate by vibration, the concrete is easy to excessively volatilize in a later leveling area in a field with a larger range due to the time required in the leveling process after being laid, and further the local concave surface of the leveling plate is easy to be larger after the leveling area is leveled.
Aiming at the defects of the prior art, the purpose and the effect of the concrete laser leveling machine are achieved by the following specific technical means: the utility model provides a concrete laser leveling machine, its structure is including supporting to dredge guide frame, flattening board, rotary control carousel, movable wheel, laser calibration lock frame, the flat device of vibrations benefit, it welds mutually with the flattening board to support to dredge the guide frame, rotary control carousel is installed in flattening board top, the movable wheel is equipped with two altogether and installs respectively in the flattening board left and right sides, laser calibration lock frame welds mutually with the flat device of vibrations benefit, it installs inside the flat device of vibrations benefit through the mode of embedding to support to dredge the guide frame.
The vibration compensation leveling device comprises a vibration compensation mechanism, a vibration pressure sleeve, a middle bearing plate, a connecting guide sleeve, a lock groove and a guide groove, wherein the guide groove and the connecting guide sleeve are of an integrated structure, the lock groove is arranged in the middle of the middle bearing plate, and the vibration compensation mechanism is arranged in the vibration pressure sleeve in an embedded mode.
Preferably, the vibration supplementing mechanism comprises a hollow clamping strip, an elastic sheet, a vibration locking mechanism, a guide plate, a lower vibration sleeve and a vibration cavity, the vibration cavity is arranged in the lower vibration sleeve, the hollow clamping strip and the lower vibration sleeve are attached to and fixedly connected with the elastic sheet, the guide plate is installed in the lower vibration sleeve in an embedded mode, the hollow clamping strip is installed in the guide plate in an embedded mode, the position of the vibration cavity is low, water flow guided out of the interior can be collected, and the water flow is discharged and released through a hole array below the hollow clamping strip.
Preferably, shake the latch mechanism including vibrations depression bar, horizontal handle, colluding the handle, reverse knot, vibrations depression bar and horizontal handle fixed connection are in the same place, collude the handle and install inside vibrations depression bar through the mode of embedding, reverse knot is connected with horizontal handle, and vibrations depression bar is equipped with two conduction through horizontal handle, can make it accept handle diffusion vibrations pressure to realize holistic amplitude synchronous.
As preferred, collude the handle and include handle strip, epitaxial lateral plate, interior bullet strip, inserted sheet, the handle strip is inside to be inlayed and is equipped with interior bullet strip, epitaxial lateral plate is parallel to each other with the inserted sheet, epitaxial lateral plate and interior bullet strip fixed connection are in the same place, interior bullet strip is in the same place with inserted sheet fixed connection, and epitaxial lateral plate and interior bullet strip and inserted sheet three position are from low to high to interior bullet strip diameter is on the small side to can form the state of I-shaped centre gripping.
As preferred, the baffle includes rectangular diaphragm, presses to let out the mechanism, divides defeated piece, leads defeated lock pipe, interior accumulator tank, divide defeated piece to install inside rectangular diaphragm through the mode of embedding, storage tank in the inside being equipped with of rectangular diaphragm, it installs respectively in two rectangular sides of rectangular diaphragm to press to let out the mechanism, lead defeated lock pipe and rectangular diaphragm fixed connection together, press to let out the mechanism embedding inside the shake cover down, can be through rather than medial surface looks mutual friction, and then realize exporting its inside rivers itself.
As preferred, pressure lets out the mechanism and includes soft paster, connecting strip, chock plug, seals pipe, cladding piece, it has the cladding piece to seal the laminating of pipe below, the chock plug with seal pipe fixed connection together, soft paster is connected with a seal pipe through the connecting strip, the chock plug presents the state that the arc colluded with the shape of sealing its monolithic phase of pipe after, and then can ensure its in-process at vertical motion, can carry out the blockade that stabilizes to the exit position.
Preferably, the connecting strip comprises memory cotton and conducting wires, the two conducting wires are embedded in the memory cotton, the memory cotton is cylindrical, and two small circular through grooves are formed in the memory cotton, so that the memory cotton can contract when being pressed, and the resetting time of the memory cotton is prolonged.
Preferably, the hollow holding strip is provided with supporting blocks on two sides only, the elastic sheet is rectangular and is slightly thin, and the elastic sheet is supported by high-density elastic rubber materials, plays a certain supporting role in a conventional state and can provide a certain supporting force when being pressed.
Compared with the prior art, the invention has the following advantagesAdvantageous effects：
The water flow can be conveyed towards the inside through the guide groove, and the water flow can gradually seep out through the reciprocating friction between the water flow and the inner guide plate under the vibration of the lower vibration sleeve, the water flow is gradually discharged outwards in the high-frequency vibration process of the lower vibration sleeve, the local concave surface is larger in the area leveling process, the edge of the concave surface can be rapidly softened through the supplement of the discharged water flow, and therefore the concave surface can be leveled back through the high-frequency vibration.
Drawings
Fig. 1 is a schematic structural view of a concrete laser leveler according to the present invention.
Fig. 2 is a schematic front view of the vibration-compensating leveling device.
FIG. 3 is a schematic diagram of the internal structure of the vibration compensation mechanism.
FIG. 4 is a top view of the interior of the seismological locking mechanism.
Fig. 5 is a schematic view of the hook handle structure.
Fig. 6 is an enlarged schematic view of the hook handle at a position.
FIG. 7 is a top view of the guide plate showing the detailed structure of the inner part.
Fig. 8 is a side internal detailed structural schematic view of the pressure relief mechanism.
FIG. 9 is a schematic side view of a tube sealing device.
Fig. 10 is a schematic cross-sectional internal detailed structure diagram of a connecting strip of the connecting strip.
In the figure: a supporting and guiding frame-1, a leveling machine table-2, a rotary control turntable-3, a movable wheel-4, a laser calibration locking frame-5, a vibration compensation leveling device-6, a vibration compensation mechanism-a 1, a vibration pressing sleeve-a 2, a middle bearing plate-a 3, a connecting guide sleeve-a 4, a locking groove-a 5, a guide groove-a 6, a hollow clamping strip-a 11, an elastic sheet-a 12, a vibration locking mechanism-a 13, a guide plate-a 14, a lower vibration sleeve-a 15, a vibration cavity-a 16, a vibration pressing rod-a 131, a transverse handle-a 132, a hook handle-a 133, a reverse buckle-a 134, a handle strip-aa 1, an extension side sheet-2, an inner elastic strip-aa 3, an insertion sheet-aa 4, a strip transverse plate-a 141, a pressure relief mechanism-a 142, a sub-transmission sheet-a 143, a guide and transmission locking pipe-144 a, an inner storage groove-145 a, The novel multifunctional plug comprises a soft patch-q 1, a connecting bar-q 2, a plug-q 3, a sealing tube-q 4, a coating sheet-q 5, memory cotton-q 21 and a lead wire-q 22.
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.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in figures 1 to 7:
the invention provides a concrete laser leveling machine which structurally comprises a supporting and dredging frame 1, a leveling machine table 2, a rotary control rotary table 3, movable wheels 4, a laser calibration locking frame 5 and a vibration compensation leveling device 6, wherein the supporting and dredging frame 1 is welded with the leveling machine table 2, the rotary control rotary table 3 is arranged above the leveling machine table 2, the movable wheels 4 are two and are respectively arranged on the left side and the right side of the leveling machine table 2, the laser calibration locking frame 5 is welded with the vibration compensation leveling device 6, and the supporting and dredging frame 1 is arranged inside the vibration compensation leveling device 6 in an embedded mode.
The vibration-compensating leveling device 6 comprises a vibration-compensating mechanism a1, a vibration-compensating sleeve a2, a middle bearing plate a3, a connecting guide sleeve a4, a locking groove a5 and a guide groove a6, wherein the guide groove a6 and the connecting guide sleeve a4 are of an integrated structure, the locking groove a5 is arranged in the middle of the middle bearing plate a3, and the vibration-compensating mechanism a1 is installed inside the vibration-compensating sleeve a2 in an embedding mode.
The vibration compensation mechanism a1 comprises a hollow clamping strip a11, an elastic sheet a12, a vibration lock mechanism a13, a guide plate a14, a lower vibration sleeve a15 and a vibration cavity a16, the vibration cavity a16 is arranged in the lower vibration sleeve a15, the hollow clamping strip a11 and the lower vibration sleeve a15 are attached to the elastic sheet a12 and fixedly connected together, the guide plate a14 is installed in the lower vibration sleeve a15 in an embedded mode, the hollow clamping strip a11 is installed in the guide plate a14 in an embedded mode, the position of the vibration cavity a16 is low, water flow guided out of the interior can be further collected, and the water flow is discharged and released through a discharge hole below the vibration cavity a 16.
Wherein, shake latch mechanism a13 includes vibrations depression bar a131, horizontal handle a132, colludes handle a133, reverse knot a134, vibrations depression bar a131 and horizontal handle a132 fixed connection together, collude handle a133 and install inside vibrations depression bar a131 through the mode of embedding, reverse knot a134 is connected with horizontal handle a132, and vibrations depression bar a131 is equipped with two conduction through horizontal handle a132, can make it accept handle diffusion vibrations pressure to realize that holistic amplitude is synchronous.
The hook handle a133 comprises a handle bar aa1, an extension side piece aa2, an inner elastic bar aa3 and an insertion piece aa4, wherein the inner elastic bar aa3 is embedded in the handle bar aa1, the extension side piece aa2 is parallel to the insertion piece aa4, the extension side piece aa2 is fixedly connected with the inner elastic bar aa3, the inner elastic bar aa3 is fixedly connected with the insertion piece aa4, the extension side piece aa2, the inner elastic bar aa3 and the insertion piece aa4 are arranged from low to high, and the diameter of the inner elastic bar aa3 is small, so that an I-shaped clamped state can be formed.
Wherein, baffle a14 includes rectangular diaphragm a141, presses and lets out mechanism a142, divides defeated piece a143, leads defeated lock pipe a144, interior holding tank a145, divide defeated piece a143 to install inside rectangular diaphragm a141 through the mode of embedding, storage tank a145 in the inside being equipped with of rectangular diaphragm a141, it installs respectively in two rectangular sides of rectangular diaphragm a141 to press and let out mechanism a142, it is in the same place with rectangular diaphragm a141 fixed connection to lead defeated lock pipe a144, presses and lets out mechanism a142 embedding and shakes inside cover a15 down, can be through rather than the medial surface looks mutual friction, and then realize deriving its inside rivers.
The specific use mode and function of the embodiment are as follows:
in the invention, a vibration motor is carried in the device, when the laser leveling is carried out, the vibration motor is embedded in a middle support plate a3 and fixedly connected with a reverse buckle a134, the vibration transmission with a transverse handle a132 is carried out through the internal vibration motor, a hook handle a133 in a vibration pressure rod a131 can press a lower vibration sleeve a15, because the positions of an extension side sheet aa2, an inner elastic strip aa3 and an inserting sheet aa4 are from low to high, and the diameter of the inner elastic strip aa3 is small, an I-shaped clamping state can be formed, so that the lower vibration sleeve a15 can be pressed downwards, because the inner part is embedded with an extension side sheet aa 14, the water flow output in an inner storage tank a145 can be controlled through the sliding friction between the outer side surface of a guide plate a14 and a lower vibration sleeve a15, the pressure relief mechanism a142 is deformed, and the pressure relief mechanism a142 controls the water flow output in the inner storage tank a145, and the guide lock pipe a144 is made of plastic materials by connecting and supporting the dredging frame 1, the water flow has certain supporting force, can hang and support the strip transverse plate a141, can store water flow inside the inner storage tank a145, and can strengthen the whole weight of the strip transverse plate a141 through pressure, and the water flow flowing out can flow out towards the outside through the vibration cavity a16 and can act on the external concrete through high-frequency vibration.
Example 2
As shown in fig. 8 to 10:
the invention provides a concrete laser leveling machine, wherein a pressure relief mechanism a142 comprises a soft patch q1, a connecting strip q2, a plug q3, a sealing tube q4 and a coating sheet q5, the coating sheet q5 is attached to the lower part of the sealing tube q4, the plug q3 and the sealing tube q4 are fixedly connected together, the soft patch q1 is connected with the sealing tube q4 through the connecting strip q2, and the overall connection shape of the plug q3 and the sealing tube q4 is in an arc hook state, so that the outlet position can be stably blocked in the vertical movement process.
The connecting strip q2 comprises memory cotton q21 and a conducting wire q22, wherein two conducting wires q22 are embedded in the memory cotton q21, the memory cotton q21 is cylindrical, two small circular through grooves are formed in the memory cotton q21, and the memory cotton q21 can contract under pressure and prolong the reset time of the memory cotton.
The hollow gib a11 has only two sides provided with supporting blocks, and the elastic sheet a12 is rectangular and slightly thin, and is supported by high-density elastic rubber material, so that the hollow gib a11 plays a certain supporting role in a conventional state and can provide a certain supporting force when being pressed.
The specific use mode and function of the embodiment are as follows:
the invention is in the normal state to seal the tube q4 to embed in the drainage port of the internal of the conveying sheet a143 of the long horizontal plate a141, and block its drainage port through the stopper q3, thus make it realize the state of sealing the flow, and when it is stressed and pushed downward through the soft patch q1 by the pressure, the tube q4 will drive the stopper q3 to break away from its blocked drainage port, and through the wrapping sheet q5 when touching, buffer, while when recovering in the reverse direction, can make the tube q4 slow down the course of blocking and embedding through the extension of the connecting strip q 2.
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 those of ordinary skill in the 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 (8)
1. The utility model provides a concrete laser evener, its structure is including supporting sparse guide frame (1), flattening board (2), rotary control carousel (3), movable wheel (4), laser calibration lock frame (5), shake and mend leveling device (6), its characterized in that:
the laser calibration lock frame is characterized in that the support dredging frame (1) is welded with the leveling machine table (2), the rotary control turntable (3) is arranged above the leveling machine table (2), two movable wheels (4) are arranged and are respectively arranged on the left side and the right side of the leveling machine table (2), the laser calibration lock frame (5) is welded with the vibration compensation leveling device (6), and the support dredging frame (1) is arranged inside the vibration compensation leveling device (6) in an embedded mode;
the vibration-compensating leveling device (6) comprises a vibration-compensating mechanism (a1), a vibration-compensating sleeve (a2), a middle bearing plate (a3), a connecting guide sleeve (a4), a locking groove (a5) and a guide groove (a6), wherein the guide groove (a6) and the connecting guide sleeve (a4) are of an integrated structure, the locking groove (a5) is arranged in the middle position of the middle bearing plate (a3), and the vibration-compensating mechanism (a1) is installed inside the vibration-compensating sleeve (a2) in an embedded mode.
2. A concrete laser screed according to claim 1 wherein: shake benefit mechanism (a1) including cavity holding strip (a11), shell fragment (a12), shake lock mechanism (a13), baffle (a14), shake cover (a15), shake chamber (a16) down, shake cover (a15) inside and be equipped with and shake chamber (a16) down, cavity holding strip (a11) shakes cover (a15) laminating and shell fragment (a12) fixed connection together down, the mode installation that the baffle (a14) was through the embedding shakes under inside cover (a15), install inside baffle (a14) through the mode of embedding in cavity holding strip (a 11).
3. A concrete laser screed according to claim 2 wherein: shake latch mechanism (a13) including vibrations depression bar (a131), horizontal handle (a132), collude handle (a133), reverse knot (a134), vibrations depression bar (a131) and horizontal handle (a132) fixed connection together, collude handle (a133) and install inside vibrations depression bar (a131) through the mode of embedding, reverse knot (a134) is connected with horizontal handle (a 132).
4. A concrete laser screed according to claim 3 wherein: the hook handle (a133) comprises a handle bar (aa1), an extension side piece (aa2), an inner elastic strip (aa3) and an inserting piece (aa4), wherein the inner elastic strip (aa3) is embedded in the handle bar (aa1), the extension side piece (aa2) is parallel to the inserting piece (aa4), the extension side piece (aa2) is fixedly connected with the inner elastic strip (aa3), and the inner elastic strip (aa3) is fixedly connected with the inserting piece (aa 4).
5. A concrete laser screed according to claim 2 wherein: guide plate (a14) include rectangular diaphragm (a141), press and release mechanism (a142), divide defeated piece (a143), lead and lose lock pipe (a144), interior holding tank (a145), divide defeated piece (a143) to install inside rectangular diaphragm (a141) through the mode of embedding, storage tank (a145) in rectangular diaphragm (a141) inside being equipped with, press and release mechanism (a142) and install respectively at two rectangular sides of rectangular diaphragm (a141), lead and lose lock pipe (a144) and rectangular diaphragm (a141) fixed connection together.
6. A concrete laser screed according to claim 5 wherein: the pressure relief mechanism (a142) comprises a soft patch (q1), a connecting strip (q2), a plug (q3), a sealing tube (q4) and a coating sheet (q5), wherein the coating sheet (q5) is attached to the lower portion of the sealing tube (q4), the plug (q3) is fixedly connected with the sealing tube (q4), and the soft patch (q1) is connected with the tube (q4) through the connecting strip (q 2).
7. A concrete laser screed according to claim 6 wherein: the connecting strip (q2) comprises memory cotton (q21) and a conducting wire (q22), and two conducting wires (q22) are embedded in the memory cotton (q 21).
8. A concrete laser screed according to claim 2 wherein: the hollow holding strip (a11) is provided with supporting blocks only on two sides, and the elastic sheet (a12) is rectangular and is slightly thin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010404686.6A CN111502289A (en) | 2020-05-14 | 2020-05-14 | Concrete laser leveling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010404686.6A CN111502289A (en) | 2020-05-14 | 2020-05-14 | Concrete laser leveling machine |
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| Publication Number | Publication Date |
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| CN111502289A true CN111502289A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010404686.6A Pending CN111502289A (en) | 2020-05-14 | 2020-05-14 | Concrete laser leveling machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094379A (en) * | 2010-09-10 | 2011-06-15 | 张晓军 | Concrete laser leveling machine |
| CN204590549U (en) * | 2015-03-24 | 2015-08-26 | 中交一航局第四工程有限公司 | A kind of laser concrete leveling machine |
| CN108385479A (en) * | 2018-02-10 | 2018-08-10 | 上海捷舟工程机械有限公司 | A kind of laser leveling machine |
| CN207878942U (en) * | 2018-01-19 | 2018-09-18 | 江苏力达通智能科技有限公司 | A kind of new concrete laser leveling machine |
| CN208329541U (en) * | 2018-05-16 | 2019-01-04 | 深圳匠匠装科技施工有限公司 | A kind of laser Horizon machine |
-
2020
- 2020-05-14 CN CN202010404686.6A patent/CN111502289A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094379A (en) * | 2010-09-10 | 2011-06-15 | 张晓军 | Concrete laser leveling machine |
| CN204590549U (en) * | 2015-03-24 | 2015-08-26 | 中交一航局第四工程有限公司 | A kind of laser concrete leveling machine |
| CN207878942U (en) * | 2018-01-19 | 2018-09-18 | 江苏力达通智能科技有限公司 | A kind of new concrete laser leveling machine |
| CN108385479A (en) * | 2018-02-10 | 2018-08-10 | 上海捷舟工程机械有限公司 | A kind of laser leveling machine |
| CN208329541U (en) * | 2018-05-16 | 2019-01-04 | 深圳匠匠装科技施工有限公司 | A kind of laser Horizon machine |
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Application publication date: 20200807 |