CN112127463A - Adjustable automatic strickle device of tapering cell body - Google Patents
Adjustable automatic strickle device of tapering cell body Download PDFInfo
- Publication number
- CN112127463A CN112127463A CN202010924371.4A CN202010924371A CN112127463A CN 112127463 A CN112127463 A CN 112127463A CN 202010924371 A CN202010924371 A CN 202010924371A CN 112127463 A CN112127463 A CN 112127463A
- Authority
- CN
- China
- Prior art keywords
- strickle
- main shaft
- adjustable
- telescopic
- pull rod
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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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
- E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
- E04G21/063—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools
- E04G21/066—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools acting upon the surface of the concrete, whether or not provided with parts penetrating the concrete
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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
Abstract
The invention discloses an adjustable automatic scraping device for a conical tank body, which comprises an automatic rotating base arranged in the conical tank body, wherein the upper part of the automatic rotating base is connected with a central fixed main shaft, two sides of the central fixed main shaft are respectively and symmetrically provided with an adjustable scraping support, the tail end of each adjustable scraping support is connected with a vibration scraping device, the vibration scraping devices are closely arranged on the side wall surface of the conical tank body, and the automatic rotating base can sequentially drive the central fixed main shaft, the adjustable scraping supports and the vibration scraping devices on the upper part of the automatic rotating base to rotate. The invention has the advantages that: scraping conical tank bodies with different sizes, heights and gradients by adjustable scraping supports; the motor drives the upper structure of the base to rotate, so that automatic strickling is realized; shake the strickle when strickleing off automatically through small-size electromagnetic shaker, guarantee that concrete surface is closely knit and levels.
Description
Technical Field
The invention relates to the technical field of engineering construction, in particular to an adjustable automatic strickling device for a conical tank body.
Background
The cone-shaped tank body generally appears in positions such as a cyclone sand basin, a sludge concentration tank and the like of a sewage treatment plant, impurities or sludge in water are precipitated and gathered to a central area of the bottom of the tank through the gradient of the cone-shaped surface, so that the treatment is convenient and uniform, and the requirement on the surface flatness of the tank body is higher. At present, the common method is that a wood scraping ruler or an aluminum alloy scraping ruler is manually held to conduct leveling, the length of the scraping ruler is about 2 meters, and the surface leveling work is completed through the manual scraping ruler of an operator through forceful scraping. The traditional construction method has the advantages of slow efficiency, high labor intensity, difficult surface flatness control, great influence of the technical level of operators, and danger in construction due to the large gradient of the pool wall.
Disclosure of Invention
The invention aims to provide an adjustable automatic scraping device for conical tanks, which can scrape conical tanks with different sizes, heights and gradients through adjustable scraping supports according to the defects of the prior art.
The purpose of the invention is realized by the following technical scheme:
the utility model provides an adjustable automatic device of strickleing off of cone-shaped cell body which characterized in that: including locating the internal autogiration base of awl type cell, autogiration base upper portion is connected with central fixed main shaft, the both sides of central fixed main shaft are equipped with adjustable strickle the support respectively symmetrically, adjustable strickle the support end and all be connected with a vibrations strickle the ware, vibrations strickle the ware paste tightly set up in on the lateral wall face of awl type cell, autogiration base accessible is rotatory drive its upper portion respectively central fixed main shaft in proper order adjustable strickle the support with vibrations strickle the ware and rotate.
Motor and battery are installed respectively to automatic rotating base's support bottom both sides and support upper portion is equipped with the carousel, the toothed disc is installed on carousel upper portion, support the carousel reaches the toothed disc center is located same axis and is hollow structure in the middle of its three, central fixed base bearing inserts in the hollow structure, the motor shaft end is equipped with the gear, the gear with the toothed disc meshes mutually, the motor passes through the toothed disc can drive central fixed main shaft rotates.
The utility model discloses a fixed main shaft of central authorities, including the fixed main shaft of central authorities, the fixed main shaft of central authorities is equipped with vertical haunched board all around, haunched board pass through the screw with the gear disc of autogiration base is connected, fixed main shaft upper portion of central authorities is the main shaft lead screw, the screw thread sleeve pipe is equipped with the screw thread sleeve pipe, the screw thread sleeve pipe can rotate on the main shaft lead screw, the upper and lower part of screw thread sleeve pipe respectively is equipped with a nut, and the upper and lower extreme of screw thread sleeve pipe respectively is equipped with a pair of otic placode, the screw.
The adjustable strickle support on each side comprises a telescopic pull rod group and a telescopic support rod, the telescopic pull rod group comprises an upper telescopic pull rod and a lower telescopic pull rod which are arranged in parallel, one end of the telescopic pull rod group is hinged with the ear plate on the central fixed main shaft, and the other end of the telescopic pull rod group is hinged with the ear plate on the strickle of the vibration strickle; one end of the telescopic supporting rod is welded on the lower part of the central fixed main shaft, and the other end of the telescopic supporting rod is hinged with the lower part of the lower telescopic pull rod through an ear plate.
The upper telescopic pull rod and the lower telescopic pull rod are composed of a sleeve and a screw rod which are arranged at intervals, and length telescopic adjustment is carried out between the sleeve and the screw rod through rotation.
The telescopic supporting rod comprises a sleeve and screw rods arranged at two ends of the sleeve, and the length of the telescopic supporting rod is adjusted in a telescopic mode through rotation between the sleeve and the screw rods.
The vibration strickle comprises a strickle and a small vibrator, the strickle is connected with the adjustable strickle through ear plates at two ends of the strickle, the small vibrator is fixed at the middle part of the strickle through two fixed rods, and two ends of the fixed rods are respectively connected with the small vibrator and the ear plates of the strickle.
The invention has the advantages that: scraping conical tank bodies with different sizes, heights and gradients by adjustable scraping supports; the upper structure of the base is driven to rotate by the motor, so that automatic strickling is realized, and the opening and closing of the motor and the rotating speed of the motor can be controlled by a remote controller; shake the chi of strickleing off in scraping off automatically through small-size electromagnetic shaker, small-size electromagnetic shaker also can open, close and the regulation of amplitude through the remote controller, guarantees that the concrete surface is closely knit to level.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a cross-sectional view of the automatic rotating base of the present invention;
FIG. 3 is a schematic view of the connection of the central fixed spindle to the upper telescopic rod of the present invention;
fig. 4 is a schematic structural view of the vibrating screed according to the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-4, the labels 1-6 in the figures are respectively expressed as: the automatic scraping device comprises an automatic rotating base 1, a supporting support 11, a motor 12, a storage battery 13, a rotary table 14, a gear disc 15, a gear 16, a central fixed spindle 2, a spindle screw rod 21, a threaded sleeve 22, a first nut 23, an armboard 24, a first screw 25, an ear plate 3, a second screw 31, a second nut 32, an adjustable scraping support 4, an upper telescopic pull rod 41, a lower telescopic pull rod 42, a telescopic support rod 43, a sleeve 44, a screw rod 45, a vibration scraping device 5, a scraping ruler 51, a small vibrator 52, a fixed rod 53 and a conical tank body 6.
Example (b): as shown in fig. 1-4, the present embodiment mainly comprises an automatic rotating base 1, a central fixed spindle 2, an adjustable strike support 4 and a vibrating strike 5. The automatic rotating base 1 is arranged in the conical tank body 6 and is arranged coaxially with the conical tank body 6, the upper portion of the automatic rotating base 1 is connected with a central fixed main shaft 2, two sides of the central fixed main shaft 2 are respectively and symmetrically provided with adjustable scraping supports 4, the tail ends of the adjustable scraping supports 4 are respectively connected with a vibration scraping device 5, the vibration scraping devices 5 are arranged on the side surface of the conical tank body 6, the automatic rotating base 1 can sequentially and respectively drive the central fixed main shaft 2, the adjustable scraping supports 4 and the vibration scraping devices 5 on the upper portion to rotate through rotation, namely, the automatic rotating base 1 drives the central fixed main shaft 2 to rotate through rotation, the central fixed main shaft 2 drives the adjustable scraping supports 4 to rotate, the adjustable scraping supports 4 drive the vibration scraping devices 5 to rotate, and finally the vibration scraping devices 5 complete the scraping work on the side surface of the conical tank body 6.
As shown in fig. 1 and 2, the automatic rotating base 1 includes a support base 11, a motor 12, a storage battery 13, a turntable 14, a gear plate 15, and a gear 16. The motor 12 and the storage battery 13 are respectively installed on two sides of the bottom of the supporting support 11, and the motor 12 and the storage battery 13 are installed at the bottom of the supporting support 11, so that the overall gravity center can be reduced, and the stability of the device is improved. The lower layer of the rotary table 14 is firmly welded with the top end of the supporting support 11, the upper layer of the rotary table 14 is welded with the gear disc 15, the centers of the supporting support 11, the rotary table 14 and the gear disc 15 are positioned on the same axis, the middle part of the supporting support is of a hollow structure, and the central fixed spindle 2 can be inserted into the hollow structure in a socket mode. The end of the rotating shaft of the motor 12 is provided with a gear 16 which is meshed with the gear disc 15, and the gear disc 15 can be driven to rotate by the rotation of the motor 12 so as to realize the uniform rotation of the upper structure of the gear disc 15. Meanwhile, the opening and closing of the motor 12 and the rotating speed of the motor can be controlled through a remote controller, and then whether the device works or not and the scraping speed are controlled.
As shown in fig. 1, 2 and 3, the central fixed spindle 2 is fixed on the upper portion of the automatic rotating base 1, and vertical haunching plates 24 are arranged around the central fixed spindle 2 for fixing so as to enhance the stability of the central fixed spindle, wherein the haunching plates 24 are fixed with the gear plate 15 through first screws 25. The upper part of the central fixed main shaft 2 is subjected to threading treatment, namely the upper part of the central fixed main shaft 2 is a main shaft screw rod 21, a threaded sleeve 22 is arranged on the main shaft screw rod 21, the upper and lower positions of the threaded sleeve 22 can be adjusted on the main shaft screw rod 21 by rotating the threaded sleeve 22, the upper and lower parts of the threaded sleeve 22 are respectively provided with a first nut 23, and the two first nuts 23 are arranged on the thread section of the main shaft screw rod 21, so that the position of the threaded sleeve 22 can be fixed. The upper end and the lower end of the threaded sleeve 22 are respectively provided with a pair of ear plates 3, and the four ear plates 3 are positioned in the same plane and are symmetrically distributed and used for fixing the adjustable strickle support 4.
As shown in fig. 1, 3 and 4, the adjustable leveling support 4 is symmetrically disposed on two sides of the central fixed spindle 2, and the adjustable leveling support 4 includes an upper telescopic rod 41, a lower telescopic rod 42 and a telescopic support rod 43, which are disposed in the same plane, wherein the upper telescopic rod 41 and the lower telescopic rod 42 are disposed in parallel. The upper telescopic pull rod 41, the lower telescopic pull rod 42 and the telescopic supporting rod 43 are all composed of a sleeve 45 and two lead screws 44 connected to two ends of the sleeve 45, external threads of the two lead screws 44 are matched with internal threads of the sleeve 45, and the length of the two lead screws 44 on the upper telescopic pull rod 41, the lower telescopic pull rod 42 and the telescopic supporting rod 43 can be adjusted by rotating the sleeve 45, so that the extension and the shortening of the upper telescopic pull rod 41, the lower telescopic pull rod 42 and the telescopic supporting rod 43 are realized. Both ends of the upper telescopic pull rod 41 and the lower telescopic pull rod 42 are respectively connected with the ear plate 3 on the threaded sleeve 22 of the central fixed main shaft 2 and the ear plate 3 on the leveling ruler 51 of the vibration leveling device 5, the upper telescopic pull rod 41 and the lower telescopic pull rod 42 can rotate around the ear plate 3 on the threaded sleeve 22 and the ear plate 3 on the leveling ruler 51 of the vibration leveling device 5, specifically, the upper telescopic pull rod 41 is connected with the ear plate 3 at the upper end of the threaded sleeve 22, and the lower telescopic pull rod 42 is connected with the ear plate 3 at the lower end of the threaded sleeve 22. One end of the telescopic supporting rod 43 is welded and fixed with the central fixed main shaft 2 and can not rotate, the other end of the telescopic supporting rod 43 is fixed with the lower end screw rod 45 of the lower telescopic pull rod 42 through the lug plate 3, and the end of the telescopic supporting rod 43 can rotate around the lug plate 3 on the lower end screw rod 45 of the lower telescopic pull rod 42.
In the embodiment, the position of the highest point of the adjustable strickle support 4 can be adjusted by adjusting the position of the threaded sleeve 22 on the central fixed main shaft 2; the heights of the upper telescopic pull 41 and the lower telescopic pull 42 can be adjusted by adjusting the length of the telescopic supporting rod 43, so as to determine the height of the strickling area; the radius of the upper part of the strickling area can be adjusted by adjusting the length of the upper telescopic rod 41, and the radius of the lower part of the strickling area can be adjusted by adjusting the length of the lower telescopic rod 42. The upper radius and the lower radius of the scraping are adjusted according to the actual condition of the conical tank body 6, the inclination angle of the scraping can be finally determined, and the flatness and the precision of the conical tank body 6 are ensured.
As shown in fig. 1 and 4, the vibrating strickle 5 comprises a strickle 51 and a small vibrator 52, wherein two ear plates 3 are respectively arranged at two ends of the strickle 51, and the two ear plates 3 are respectively connected with an upper telescopic pull rod 41 and a lower telescopic pull rod 42. Small-size electromagnetic shaker 52 is fixed in scraping chi 51 middle part through two fixed wanders 53, and two fixed wanders 53 one end welds small-size electromagnetic shaker 52 both sides respectively, and its other end between them is connected with the otic placode 3 of scraping chi 51 both ends, like this, can shake when scraping flat, guarantees that the concrete surface is closely knit to level. The small vibrator 52 can also be turned on, off and amplitude adjusted by a remote control.
In the present embodiment, the connection modes of the lug plate 3 on the threaded sleeve 22 of the center fixed spindle 2, the lug plate 3 on the lower telescopic rod 42 of the adjustable strickle support 4, and the lug plate 3 on the strickle 51 of the vibration strickle 5 are the same, and the description will be given only by taking the lug plate 3 at the upper end of the threaded sleeve 22 of the center fixed spindle 2 as an example. As shown in fig. 3, the ear plate 3 is a steel plate with a hole in the middle, the end of the component (in this embodiment, the upper telescopic rod 41 of the adjustable strickle support 4) connected with the ear plate 3 is also welded with a steel plate with a hole in the middle, and the second screw 31 passes through the two holes and is connected and fixed by the second nut 32.
In addition, as shown in fig. 1, fig. 2, fig. 3, and fig. 4, the present embodiment further has the following working method:
1. according to the size, the height and the gradient of the conical tank body, the upper and lower radiuses of a strickling area and the strickling inclination angle are determined by adjusting the position of the threaded sleeve 22 on the central fixed main shaft 2 and the lengths of the upper telescopic pull rod 41, the lower telescopic pull rod 42 and the telescopic support rod 43;
2. the device is installed and debugged, and the working states of the motor 12 and the small vibrator 52 are adjusted through a remote controller according to actual conditions, so that the compact and flat surface of concrete can be ensured while scraping, wherein the working state of the motor 12 comprises opening, closing and the motor rotating speed, and the working state of the small vibrator 52 comprises opening, closing and amplitude;
3. after the strickling work is finished, the device is sorted and recovered.
In summary, in the embodiment, the scraping work is performed on the conical tank bodies with different sizes, heights and slopes through the adjustable scraping support; the upper structure of the base is driven to rotate by the motor, so that automatic strickling is realized, and the opening and closing of the motor and the rotating speed of the motor can be controlled by a remote controller; shake the chi of strickleing off in scraping off automatically through small-size electromagnetic shaker, small-size electromagnetic shaker also can open, close and the regulation of amplitude through the remote controller, guarantees that the concrete surface is closely knit to level.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, they are not to be considered repeated herein.
Claims (7)
1. The utility model provides an adjustable automatic device of strickleing off of cone-shaped cell body which characterized in that: including locating the internal autogiration base of awl type cell, autogiration base upper portion is connected with central fixed main shaft, the both sides of central fixed main shaft are equipped with adjustable strickle the support respectively symmetrically, adjustable strickle the support end and all be connected with a vibrations strickle the ware, vibrations strickle the ware paste tightly set up in on the lateral wall face of awl type cell, autogiration base accessible is rotatory drive its upper portion respectively central fixed main shaft in proper order adjustable strickle the support with vibrations strickle the ware and rotate.
2. The adjustable automatic scraping device for the conical pond body according to claim 1, wherein: motor and battery are installed respectively to automatic rotating base's support bottom both sides and support upper portion is equipped with the carousel, the toothed disc is installed on carousel upper portion, support the carousel reaches the toothed disc center is located same axis and is hollow structure in the middle of its three, central fixed base bearing inserts in the hollow structure, the motor shaft end is equipped with the gear, the gear with the toothed disc meshes mutually, the motor passes through the toothed disc can drive central fixed main shaft rotates.
3. The adjustable automatic scraping device for the conical pond body according to claim 1, wherein: the utility model discloses a fixed main shaft of central authorities, including the fixed main shaft of central authorities, the fixed main shaft of central authorities is equipped with vertical haunched board all around, haunched board pass through the screw with the gear disc of autogiration base is connected, fixed main shaft upper portion of central authorities is the main shaft lead screw, the screw thread sleeve pipe is equipped with the screw thread sleeve pipe, the screw thread sleeve pipe can rotate on the main shaft lead screw, the upper and lower part of screw thread sleeve pipe respectively is equipped with a nut, and the upper and lower extreme of screw thread sleeve pipe respectively is equipped with a pair of otic placode, the screw.
4. The adjustable automatic scraping device for the conical pond body according to claim 3, wherein: the adjustable strickle support on each side comprises a telescopic pull rod group and a telescopic support rod, the telescopic pull rod group comprises an upper telescopic pull rod and a lower telescopic pull rod which are arranged in parallel, one end of the telescopic pull rod group is hinged with the ear plate on the central fixed main shaft, and the other end of the telescopic pull rod group is hinged with the ear plate on the strickle of the vibration strickle; one end of the telescopic supporting rod is welded on the lower part of the central fixed main shaft, and the other end of the telescopic supporting rod is hinged with the lower part of the lower telescopic pull rod through an ear plate.
5. The adjustable automatic scraping device for the conical pond body according to claim 4, wherein: the upper telescopic pull rod and the lower telescopic pull rod are composed of a sleeve and a screw rod which are arranged at intervals, and length telescopic adjustment is carried out between the sleeve and the screw rod through rotation.
6. The adjustable automatic scraping device for the conical pond body according to claim 4, wherein: the telescopic supporting rod comprises a sleeve and screw rods arranged at two ends of the sleeve, and the length of the telescopic supporting rod is adjusted in a telescopic mode through rotation between the sleeve and the screw rods.
7. The adjustable automatic scraping device for the conical pond body according to claim 1, wherein: the vibration strickle comprises a strickle and a small vibrator, the strickle is connected with the adjustable strickle through ear plates at two ends of the strickle, the small vibrator is fixed at the middle part of the strickle through two fixed rods, and two ends of the fixed rods are respectively connected with the small vibrator and the ear plates of the strickle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924371.4A CN112127463A (en) | 2020-09-04 | 2020-09-04 | Adjustable automatic strickle device of tapering cell body |
| DE102021113019.0A DE102021113019B4 (en) | 2020-09-04 | 2021-05-19 | Adjustable automatic flattening device for a conical pool body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924371.4A CN112127463A (en) | 2020-09-04 | 2020-09-04 | Adjustable automatic strickle device of tapering cell body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112127463A true CN112127463A (en) | 2020-12-25 |
Family
ID=73848103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010924371.4A Pending CN112127463A (en) | 2020-09-04 | 2020-09-04 | Adjustable automatic strickle device of tapering cell body |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112127463A (en) |
| DE (1) | DE102021113019B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107208A (en) * | 2021-03-03 | 2021-07-13 | 北京中佑恒建设发展有限公司 | Plastering tool for construction engineering and use method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116873414B (en) * | 2023-09-06 | 2023-11-21 | 新乡市航宏航空机电设备有限公司 | Liquid storage device of gravity center allocation system and assembly forming equipment thereof |
| CN117657820B (en) * | 2024-02-02 | 2024-04-09 | 新乡市振英机械设备有限公司 | Material conveying device for constructional engineering and operation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2435052A (en) | 1944-04-07 | 1948-01-27 | Parrett Frank | Apparatus and method for molding circular concrete tanks |
| GB1487833A (en) | 1975-09-30 | 1977-10-05 | Greenan M | Method for applying a finishing screed |
| CH673308A5 (en) | 1989-03-28 | 1990-02-28 | Otto Heinzle | Vibrator slat for concrete slab production - has end bearing sliding along edge of peripheral shuttering, with extension with handle mounted near it |
| CA3037259A1 (en) | 2016-09-19 | 2018-03-22 | Somero Enterprises, Inc. | Concrete screeding system with boom mounted screed head |
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2020
- 2020-09-04 CN CN202010924371.4A patent/CN112127463A/en active Pending
-
2021
- 2021-05-19 DE DE102021113019.0A patent/DE102021113019B4/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107208A (en) * | 2021-03-03 | 2021-07-13 | 北京中佑恒建设发展有限公司 | Plastering tool for construction engineering and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021113019B4 (en) | 2023-01-26 |
| DE102021113019A1 (en) | 2022-03-10 |
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