CN211037855U - Building concrete placement is with floating equipment fast - Google Patents
Building concrete placement is with floating equipment fast Download PDFInfo
- Publication number
- CN211037855U CN211037855U CN201920893237.5U CN201920893237U CN211037855U CN 211037855 U CN211037855 U CN 211037855U CN 201920893237 U CN201920893237 U CN 201920893237U CN 211037855 U CN211037855 U CN 211037855U
- Authority
- CN
- China
- Prior art keywords
- double
- lifting
- rotating shaft
- vehicle body
- fixed
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to the technical field of building construction equipment, and discloses quick floating equipment for building concrete pouring, which comprises a carriage, a vehicle body, a wireless transmitting and receiving module, a double-guide-rod cylinder, a driving assembly and a connecting plate; the carriage is fixed at the top of the vehicle body, and the driving components are arranged at two ends of the outer side of the vehicle body; the double-guide-rod cylinder is fixed in the vehicle body, and double guide rods of the double-guide-rod cylinder extend out of the vehicle body; the wireless transmitting and receiving module is fixed in the carriage, a controller and a storage battery are also fixed in the carriage, and the wireless transmitting and receiving module is respectively connected with the controller and the storage battery through leads; the connecting plate is fixed on the front side of the double guide rods of the double guide rod cylinder, and a lifting type swinging grinding mechanism is arranged in the connecting plate; the lifting type swingable grinding mechanism comprises a connecting frame, a first rotating shaft seat, a grinding plate and a single guide rod cylinder mounting plate. The utility model discloses can improve the floating efficiency of ground concrete and roughness, reduce workman's working strength, improve construction quality and progress.
Description
Technical Field
The utility model relates to a construction equipment technical field especially relates to a building concrete placement is with equipment of floating fast.
Background
In building construction, when floor concrete and floor concrete are poured, in order to prevent the concrete from losing too fast, the poured concrete must be quickly leveled before the concrete is condensed. At present, the manual hand-held small trowels are mainly used for trowelling the concrete, and the effective working area of the small trowels is small, so that the working efficiency is low, and the large-area concrete surface cannot be quickly trowelled. And because the difference of the technical level and the working attitude of workers is large, the flatness of the ground cannot be guaranteed, and the concrete trowelling effect is not good enough.
In addition, when workers perform concrete plastering, the workers can work only by completely bending down, the working strength is very high, the waist is often sore and backache after long-time work, and the waist diseases are easily caused after long-time work. Therefore, there is a need to develop a building concrete trowelling device with high flatness and high working efficiency
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model aims to provide a building concrete placement is with floating equipment fast can improve the floating efficiency of ground concrete and roughness, reduces workman's working strength, improves construction quality and progress.
The utility model discloses a following technical scheme realizes: a quick floating device for building concrete pouring comprises a carriage, a vehicle body, a wireless transmitting and receiving module, a double-guide-rod cylinder, a driving assembly and a connecting plate;
the carriage is fixed at the top of the vehicle body, and the driving components are arranged at two ends of the outer side of the vehicle body;
the double-guide-rod cylinder is fixed in the vehicle body, and double guide rods of the double-guide-rod cylinder extend out of the vehicle body;
the wireless transmitting and receiving module is fixed in the carriage, a controller and a storage battery are also fixed in the carriage, and the wireless transmitting and receiving module is respectively connected with the controller and the storage battery through leads;
the connecting plate is fixed on the front side of the double guide rods of the double guide rod cylinder, and a lifting type swinging grinding mechanism is arranged in the connecting plate;
the lifting type swingable grinding mechanism comprises a connecting frame, a first rotating shaft seat, a grinding plate, a single guide rod cylinder mounting plate, a single guide rod cylinder, a second rotating shaft seat, a first rotating shaft and a second rotating shaft, wherein the connecting frame is arranged in the connecting plate in a lifting manner, the grinding plate is positioned below the connecting frame, the first rotating shaft seat is arranged in the center of the upper end of the grinding plate, and the bottom of the connecting frame is rotatably arranged in the first rotating shaft seat through the first rotating shaft; the utility model discloses a grinding machine, including the link, be connected with the mill, the link lower part still is fixed with single guide bar cylinder mounting panel, single guide bar cylinder mounting panel downside slope articulates there is single guide bar cylinder, it still is provided with second pivot seat to grind dull and stereotyped upper end, single guide bar cylinder bottom is through the rotatable installation of second pivot in second pivot seat.
Furthermore, a lifting tooth column mounting hole is formed in the center of the connecting plate, and a gear mounting groove is formed in the connecting plate and located at the side end of the lifting tooth column mounting hole; the connecting frame comprises a lifting toothed column and a connecting double rod, a rack is arranged at the side end of the lifting toothed column, and the connecting double rod is fixed at the lower end of the lifting toothed column; the lifting tooth column is installed in the lifting tooth column installation hole in a sliding fit mode, a gear is installed in the gear installation groove, the lifting tooth column is in meshed transmission with the gear through a rack at the side end of the lifting tooth column, and a coaxial driving portion is arranged on the outer side of the gear.
Further, the driving part is a lifting knob, the lifting knob is connected with the gear through a gear shaft, the gear shaft is rotatably installed in the gear installation groove, and the lifting knob is located on the outer side of the connecting plate.
Furthermore, the two double-guide-rod cylinders, the two connecting plates and the two lifting type swinging grinding mechanisms are respectively and symmetrically fixed on the front and the back of the vehicle body, and the two connecting plates and the lifting type swinging grinding mechanisms are respectively positioned on the front side and the back side of the vehicle body.
Furthermore, each lifting type swingable grinding mechanism is provided with two first rotating shaft seats, two second rotating shaft seats and two single guide rod cylinders, and the first rotating shaft seats and the second rotating shaft seats are symmetrically fixed at the upper end of the grinding plate respectively.
Furthermore, the lower side of the grinding plate is a smooth plane, and two side surfaces of the grinding plate are semi-circular smooth cylindrical surfaces.
Furthermore, two pairs of handles are symmetrically fixed on the top of the carriage.
Further, the drive assembly is a crawler belt assembly.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the designed quick floating equipment for building concrete pouring can communicate with a wireless transmitting and receiving module in a carriage by operating a wireless remote controller in the working process, so that the working of the quick floating equipment for concrete pouring is controlled, the working of the equipment is remotely controlled, and the damage of workers to the ground is reduced; the movement of the equipment is realized through the crawler belt walking assembly, and the cross-country capacity is improved; through the work of microcontroller control double guide pole cylinder for drive grinds dull and stereotyped seesaw, carry out quick floating to the building concrete of pouring out, improve ground concrete floating efficiency and roughness, reduce workman's working strength, improve construction quality and progress.
2. The quick floating equipment for building concrete pouring of design is in the course of the work, and accessible microcontroller control single guide arm cylinder work for drive grinds flat board inclined motion, improves the floating effect to concrete ground.
3. The quick floating equipment for building concrete placement of design can be according to actual need before using, and it is rotatory through rotatory lift knob drive gear, through the gear and the rack toothing transmission of lift tooth post side, drives lift tooth post up-and-down motion to the dull polish board motion of drive lower part realizes the regulation to dull polish board height, adjusts the depth of contact of dull polish board and concrete ground.
Drawings
FIG. 1 is a front view of the present invention of a rapid floating apparatus for building concrete pouring;
FIG. 2 is a plan view of the rapid floating apparatus for building concrete casting according to the present invention;
FIG. 3 is a schematic structural view of the middle connection plate and the lifting swingable grinding mechanism of the present invention;
FIG. 4 is a schematic structural view of the connecting frame of the present invention;
fig. 5 is a top view of the connecting plate of the present invention;
fig. 6 is a sectional view of the single guide rod cylinder and the second rotary seat of the present invention after being connected.
In the figure: 1. a carriage; 2. a vehicle body; 3. a handle; 4. a wireless transmitting and receiving module; 5. a double-guide-rod cylinder; 6. a drive assembly; 7. a connecting plate; 71. a lifting tooth column mounting hole; 72. a gear mounting groove; 8. the lifting type swinging grinding mechanism; 81. a lifting tooth column; 82. a gear; 83. a lifting knob; 84. a first shaft seat; 85. grinding a flat plate; 86. a single guide rod cylinder mounting plate; 87. a single-guide-rod cylinder; 88. a second spindle base; 89. connecting the double rods; 810. a first rotating shaft; 811. and a second rotation shaft 811.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1 to 6, the quick floating device for building concrete pouring comprises a carriage 1, a vehicle body 2, a wireless transmitting and receiving module 4, a double-guide-rod cylinder 5, a driving assembly 6 and a connecting plate 7;
the vehicle body 1 is fixed at the top of the vehicle body 2, the driving components 6 are arranged at two ends of the outer side of the vehicle body 2, preferably, the driving components 6 use common crawler belt walking components which mainly comprise driving wheels, thrust wheels, guide wheels, tow pulleys and a crawler belt, the crawler belt walking components preferably select 24v direct current motor-driven crawler belt walking components, the direct current motors are connected with a controller through driving circuits, the driving circuits also select existing mature motor driving modules, preferably 24v PWM direct current motor speed regulation driving modules, the crawler belt walking components are the existing mature technologies, the structures and the compositions of the crawler belt walking components are mature, and the structure and the composition of the crawler belt walking components are not similar; when drive assembly 6 walks, track and ground contact, the drive wheel does not contact with ground, when direct current motor drives the drive wheel and rotates, the drive wheel passes through the teeth of a cogwheel on it and the meshing between the track chain, roll up the track from the rear in succession, the thrust wheel just rolls forward at the track upper surface, realize the motion of whole utility model device, track walking assembly's cross-country ability is strong, can satisfy the drive demand of concrete road surface, in order to reduce the destruction to the concrete, the preferred plastics elasticity track of track, the preferred 3 ~ 8cm of width.
The double-guide-rod cylinder 5 is fixed in the vehicle body 2, double guide rods of the double-guide-rod cylinder 5 extend out of the vehicle body 2, and preferably, the double-guide-rod cylinder 5 is a 24v direct-current double-guide-rod cylinder with the model number of MGPM12-150 and is connected with a controller through a lead for driving the lifting type swinging grinding mechanism 8 to move back and forth to trowel building concrete.
The wireless transmitting and receiving module 4 is fixed in the carriage 1, a controller and a storage battery are also fixed in the carriage 1, the storage battery is preferably a 24v rechargeable lithium battery with the capacity of 24AH, the controller is preferably an ARM microcontroller of stm32f103, the power consumption is low, the control function is strong, the wireless transmitting and receiving module 4 is respectively connected with the controller and the storage battery through leads, the wireless transmitting and receiving module 4 is preferably an nRF24l01 wireless transmitting and receiving module, the building concrete pouring rapid floating device has low power consumption and strong anti-interference capability, can meet the communication requirement of 600-1500 meters, is used for the communication of the building concrete pouring rapid floating device and a matched wireless remote controller, and also uses the existing mature wireless remote controller, the nRF24l01 wireless transmitting and receiving module and the MSP430 low-power consumption controller are arranged in the wireless transmitting and receiving module, the low-power consumption MSP430 controller controls the nRF24l01 wireless transmitting and receiving module to work, and communicates with the nRF24l01 wireless transmitting and receiving module in the carriage 1.
As shown in fig. 1 to 6, further, a connecting plate 7 is fixed at the front side of the double guide rods of the double guide rod cylinder 5, and a lifting type swingable grinding mechanism 8 is arranged in the connecting plate 7; the lifting type swingable grinding mechanism 8 comprises a connecting frame, a first rotating shaft seat 84, a grinding plate 85, a single guide rod cylinder mounting plate 86, a single guide rod cylinder 87, a second rotating shaft seat 88, a first rotating shaft 810 and a second rotating shaft 811, wherein the connecting frame is arranged in the connecting plate 7 in a lifting manner, the grinding plate 85 is positioned below the connecting frame, the first rotating shaft seat 84 is arranged in the center of the upper end of the grinding plate 85, and the bottom of the connecting frame is rotatably arranged in the first rotating shaft seat 84 through the first rotating shaft 810; the link lower part still is fixed with single guide bar cylinder mounting panel 86, single guide bar cylinder mounting panel 86 downside slope articulates there is single guide bar cylinder 87, preferably, single guide bar cylinder 87 uses 24v direct current single guide bar cylinder, be used for driving the tilting motion of dull and stereotyped 85, improve the floating effect to concrete ground, be connected with the controller through the wire, dull and stereotyped 85 upper end still is provided with second pivot seat 88, install in second pivot seat 88 through second pivot 811 is rotatable in single guide bar cylinder 87 bottom.
Furthermore, a lifting tooth column mounting hole 71 is formed in the center of the connecting plate 7, and a gear mounting groove 72 is formed in the connecting plate 7 and located at the side end of the lifting tooth column mounting hole 71; the connecting frame comprises a lifting toothed column 81 and a connecting double rod 89, a rack is arranged at the side end of the lifting toothed column 81, and the connecting double rod 89 is fixed at the lower end of the lifting toothed column 81; the lifting gear column 81 is installed in the lifting gear column installation hole 71 through sliding fit, a gear 82 is installed in the gear installation groove 72, the lifting gear column 81 is in meshing transmission with the gear 82 through a rack at the side end of the lifting gear column, and a coaxial driving part is arranged on the outer side of the gear 82.
Further, the driving part is a lifting knob 83, the lifting knob 83 is connected with the gear 82 through a gear shaft, the gear shaft is rotatably installed in the gear installation groove 72, and the lifting knob 83 is located outside the connecting plate 7.
Before work, the gear 82 is driven to rotate by rotating the lifting knob 83, the lifting toothed column 81 is driven to move up and down by the meshing transmission of the gear 82 and a rack at the side end of the lifting toothed column 81, so that the grinding plate 85 at the lower part is driven to move, the height of the grinding plate 85 is adjusted, and the contact depth of the grinding plate 85 and the concrete ground is adjusted; in the working process, the stm32f103 microcontroller controls a 24v double-guide-rod cylinder of the MGPM12-150 to work, and the 24v double-guide-rod cylinder is used for driving the grinding plate 85 to move back and forth to quickly trowel poured building concrete; meanwhile, the single-guide-rod cylinder 87 is controlled to work through the stm32f103 microcontroller, so that the grinding plate 85 is driven to move obliquely, and the trowelling effect on the concrete ground is improved.
As a preferred technical scheme of the design, as shown in fig. 1 to 6, two double-guide-rod cylinders 5, two connecting plates 7 and two lifting type swinging grinding mechanisms 8 are provided, the two double-guide-rod cylinders 5 are symmetrically fixed in front of and behind the vehicle body 2 respectively, and the two connecting plates 7 and the lifting type swinging grinding mechanisms 8 are located on the front side and the rear side of the vehicle body 2 respectively.
As a preferred technical solution of the present design, as shown in fig. 1 to 6, two first rotating shaft seats 84, two second rotating shaft seats 88 and two single guide rod cylinders 87 are provided in each lifting type swingable grinding mechanism 8, and the first rotating shaft seats 84 and the second rotating shaft seats 88 are symmetrically fixed on the upper end of the grinding plate 85 respectively. The downside of dull and stereotyped 85 is smooth plane, and the both sides face of dull and stereotyped 85 is semi-circular smooth cylinder, improves the floating effect to concrete ground, and 1 top in carriage is still symmetrically fixed with two pairs of handles 3, can lift up building concrete placement through two pairs of handles 3 and use quick floating equipment, realizes the transport.
A specific embodiment of this design, as shown in fig. 1 to 6, utilize the utility model discloses a building concrete pours with quick floating equipment to the floating work on concrete ground, before using according to actual need, through rotatory lift knob 83 drive gear 82 rotatory, through the rack toothing transmission of gear 82 and lift tooth post 81 side, drive lift tooth post 81 up-and-down motion to drive the dull polish board 85 motion of lower part, realize the regulation to dull polish board 85 height, adjust the depth of contact of dull polish board 85 and concrete ground; in the working process, the wireless remote controller is operated to communicate with the nRF24l01 wireless transmitting and receiving module in the carriage 1, so that the quick floating equipment for concrete pouring is controlled to work; the movement of the equipment is realized through the crawler belt walking assembly, and a crawler belt sample plastic elastic crawler belt in the crawler belt walking assembly; the stm32f103 microcontroller controls a 24v double-guide-rod cylinder of the MGPM12-150 to work, and the 24v double-guide-rod cylinder is used for driving the grinding plate 85 to move back and forth to quickly trowel poured building concrete; meanwhile, the single-guide-rod cylinder 87 is controlled to work through the stm32f103 microcontroller, so that the grinding plate 85 is driven to move obliquely, and the trowelling effect on the concrete ground is improved.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a building concrete placement is with floating equipment fast which characterized in that: the device comprises a carriage (1), a vehicle body (2), a wireless transmitting and receiving module (4), a double-guide-rod cylinder (5), a driving assembly (6) and a connecting plate (7);
the carriage (1) is fixed at the top of the vehicle body (2), and the driving components (6) are arranged at two ends of the outer side of the vehicle body (2);
the double-guide-rod cylinder (5) is fixed in the vehicle body (2), and double guide rods of the double-guide-rod cylinder (5) extend out of the vehicle body (2);
the wireless transmitting and receiving module (4) is fixed in the carriage (1), a controller and a storage battery are further fixed in the carriage (1), and the wireless transmitting and receiving module (4) is respectively connected with the controller and the storage battery through leads;
the connecting plate (7) is fixed on the front side of the double guide rods of the double guide rod cylinder (5), and a lifting type swinging grinding mechanism (8) is arranged in the connecting plate (7);
the lifting type swinging grinding mechanism (8) comprises a connecting frame, a first rotating shaft seat (84), a grinding plate (85), a single guide rod cylinder mounting plate (86), a single guide rod cylinder (87), a second rotating shaft seat (88), a first rotating shaft (810) and a second rotating shaft (811), wherein the connecting frame is arranged in the connecting plate (7) in a lifting mode, the grinding plate (85) is located below the connecting frame, the first rotating shaft seat (84) is arranged in the center of the upper end of the grinding plate (85), and the bottom of the connecting frame is rotatably mounted in the first rotating shaft seat (84) through the first rotating shaft (810); the link lower part still is fixed with single guide bar cylinder mounting panel (86), single guide bar cylinder mounting panel (86) downside slope articulates there is single guide bar cylinder (87), grind dull and stereotyped (85) upper end and still be provided with second pivot seat (88), rotatable the installing in second pivot seat (88) is passed through second pivot (811) in single guide bar cylinder (87) bottom.
2. The rapid floating apparatus for concrete pouring of building according to claim 1, wherein: a lifting tooth column mounting hole (71) is formed in the center of the connecting plate (7), and a gear mounting groove (72) is formed in the connecting plate (7) and located at the side end of the lifting tooth column mounting hole (71); the connecting frame comprises a lifting toothed column (81) and a connecting double rod (89), a rack is arranged at the side end of the lifting toothed column (81), and the connecting double rod (89) is fixed at the lower end of the lifting toothed column (81); the lifting tooth column (81) is installed in the lifting tooth column installation hole (71) through sliding fit, a gear (82) is installed in the gear installation groove (72), the lifting tooth column (81) is in meshing transmission with the gear (82) through a rack at the side end of the lifting tooth column, and a coaxial driving portion is arranged on the outer side of the gear (82).
3. The rapid floating apparatus for concrete pouring of building according to claim 2, wherein: the driving part is a lifting knob (83), the lifting knob (83) is connected with the gear (82) through a gear shaft, the gear shaft is rotatably installed in the gear installation groove (72), and the lifting knob (83) is located on the outer side of the connecting plate (7).
4. The rapid troweling apparatus for pouring of construction concrete according to any one of claims 1 to 3, characterized in that: two double-guide-rod cylinders (5), two connecting plates (7) and two lifting type swinging grinding mechanisms (8) are arranged, the two double-guide-rod cylinders (5) are symmetrically fixed in the front and the back of the vehicle body (2) respectively, and the two connecting plates (7) and the lifting type swinging grinding mechanisms (8) are located on the front side and the back side of the vehicle body (2) respectively.
5. The rapid floating apparatus for concrete pouring of building according to claim 2, wherein: and two first rotating shaft seats (84), two second rotating shaft seats (88) and two single guide rod cylinders (87) in each lifting type swingable grinding mechanism (8) are respectively and symmetrically fixed at the upper end of the grinding plate (85) through the first rotating shaft seats (84) and the second rotating shaft seats (88).
6. The rapid troweling apparatus for pouring of construction concrete according to any one of claims 1 to 3, characterized in that: the lower side of the grinding plate (85) is a smooth plane, and two side faces of the grinding plate (85) are semicircular smooth cylindrical surfaces.
7. The rapid troweling apparatus for pouring of construction concrete according to any one of claims 1 to 3, characterized in that: two pairs of handles (3) are symmetrically fixed on the top of the carriage (1).
8. The rapid troweling apparatus for pouring of construction concrete according to any one of claims 1 to 3, characterized in that: the driving assembly (6) is a crawler walking assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893237.5U CN211037855U (en) | 2019-06-14 | 2019-06-14 | Building concrete placement is with floating equipment fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893237.5U CN211037855U (en) | 2019-06-14 | 2019-06-14 | Building concrete placement is with floating equipment fast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211037855U true CN211037855U (en) | 2020-07-17 |
Family
ID=71534143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920893237.5U Expired - Fee Related CN211037855U (en) | 2019-06-14 | 2019-06-14 | Building concrete placement is with floating equipment fast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211037855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158702A (en) * | 2020-09-04 | 2021-01-01 | 玉林师范学院 | Seat elevator system convenient to installation |
| CN112900886A (en) * | 2021-01-18 | 2021-06-04 | 朱轶静 | Precast concrete spare installation construction system |
-
2019
- 2019-06-14 CN CN201920893237.5U patent/CN211037855U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158702A (en) * | 2020-09-04 | 2021-01-01 | 玉林师范学院 | Seat elevator system convenient to installation |
| CN112900886A (en) * | 2021-01-18 | 2021-06-04 | 朱轶静 | Precast concrete spare installation construction system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100451273C (en) | Ground surface leveling machine | |
| CN109667415A (en) | A kind of device for paving bricks | |
| CN211037855U (en) | Building concrete placement is with floating equipment fast | |
| CN110241668B (en) | Steel rail polishing device and using method thereof | |
| CN111350111A (en) | Concrete shakeouts device for building site | |
| CN102677875B (en) | Multifunctional remote control automatic plastering machine | |
| CN101377092A (en) | Plastering machine for inner wall | |
| CN113941817A (en) | Cement pipe steel reinforcement framework supports auxiliary device | |
| CN214168673U (en) | Cement highway construction mixes earth with road surface and screeds device | |
| CN112854763A (en) | Construction device of energy-saving building and working method thereof | |
| CN111608033B (en) | Ballasted track gravel leveling device with adjustable height | |
| CN110644304B (en) | Liftable and multi-angle rail device of polishing | |
| CN210195176U (en) | Masonry gap pointing device | |
| CN204674619U (en) | A kind of electric hand barrow | |
| CN202672675U (en) | Multifunctional remote control automatic plastering machine | |
| CN2160677Y (en) | Concrete road surface grader | |
| CN111412759B (en) | Automatic carbide stoking robot | |
| CN211340299U (en) | Device is paved with pitch to highway maintenance | |
| CN220785823U (en) | Concrete slab carrier | |
| CN220377864U (en) | Improved concrete pouring device | |
| CN212452580U (en) | Hand-held ramming machine for building engineering | |
| CN216514900U (en) | A ground leveling device for subway track is built | |
| CN213681600U (en) | Asphalt mixture pavement construction leveling device | |
| CN216074983U (en) | Construction equipment for water conservancy river course bank protection | |
| CN219212788U (en) | Terrace paint laying device convenient to protect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 |