CN115625800A - Slotting equipment for building water and electricity installation - Google Patents
Slotting equipment for building water and electricity installation Download PDFInfo
- Publication number
- CN115625800A CN115625800A CN202211306784.1A CN202211306784A CN115625800A CN 115625800 A CN115625800 A CN 115625800A CN 202211306784 A CN202211306784 A CN 202211306784A CN 115625800 A CN115625800 A CN 115625800A
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- Prior art keywords
- groove
- arc
- protection
- installation
- shaped
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/045—Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/50—Hydropower in dwellings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention is suitable for the field of building construction, and provides slotting equipment for building hydropower installation, which comprises an installation body, wherein one side of the installation body is connected with a fixed frame, and a slotting mechanism is arranged in the fixed frame, and the slotting equipment further comprises: the portable handheld device comprises a first handheld end, a second handheld end, a protection component and a driving component, wherein the protection component and the driving component are further arranged inside the mounting body, and the driving component is connected with the first handheld end. When this building water and electricity installation is with fluting equipment use, first handheld end and the handheld end of second are held respectively to user's both hands, and the handheld end of backward pulling second, then the handheld end of second can appear a rotation action when being pulled, then this rotation action can drive the protective component operation through drive assembly, make protective component expand completely, protect first handheld end and user's limbs, prevent that the granule of fluting in-process from splashing on user's hand or health, the security of use is improved, can carry out the fluting operation through the fluting mechanism afterwards.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to slotting equipment for building hydropower installation.
Background
The building construction refers to production activities in the engineering construction implementation stage, is a construction process of various buildings, and can also be a process of changing various lines on a design drawing into a real object in a specified place. The method comprises foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction and the like.
The grooving machine is mainly used for asphalt and cement pavement repair, water discharge pipes, gas pipes, electric wire pipes and optical cable pipes. The road surface is quickly cut into uniform grooves by a wheel disc saw to form a new joint surface. The contact layer surface of the crack pouring material and the crack groove is optimized, and the bonding tightness of the crack pouring material and the side wall of the crack groove is enhanced.
When the slotting equipment is used, as the slotting machine can be directly contacted with a wall, the ground and the like, granular impurities can be splashed in the slotting process, the hands and the limbs of a user can be possibly injured, certain danger is contained in the slotting machine during use, and the potential safety hazard is high.
Disclosure of Invention
The embodiment of the invention aims to provide slotting equipment for building hydroelectric installation, and aims to solve the problems that when the slotting equipment is used, as the slotting machine can be directly contacted with a wall, the ground and the like, granular impurities splash in the slotting process, the hands and the limbs of a user can be possibly injured, certain danger is caused in use, and the potential safety hazard is high.
The embodiment of the invention is realized in such a way that the slotting equipment for building hydropower installation comprises an installation body, wherein one side of the installation body is connected with a fixed frame, a slotting mechanism is arranged in the fixed frame, and the slotting equipment for building hydropower installation further comprises:
the portable type particle waste slotting device comprises a first handheld end, a second handheld end, a protection assembly and a driving assembly, wherein the protection assembly and the driving assembly are further arranged inside the mounting body, the driving assembly is connected with the first handheld end, the driving assembly is used for controlling the protection assembly to operate, and the protection assembly is used for reducing splashing of particle waste materials when the slotting mechanism operates.
As a further scheme of the invention: the drive assembly includes:
the fan-shaped groove is formed in one side of the mounting body, a main shaft is rotatably connected inside the fan-shaped groove, the protection assembly is matched with the main shaft, a fan-shaped block is arranged on one side of the main shaft, and the first handheld end is arranged on the fan-shaped block;
the guide curved rod is arranged in the sector groove, the sector block is connected with the guide curved rod in a sliding mode, and a spring is sleeved on the guide curved rod;
the driving gear is installed on one side of the main shaft, and the driving gear is matched with the protection assembly.
As a further scheme of the invention: the center of the guide curved rod is positioned on the axis of the main shaft.
As a further scheme of the invention: the guard assembly includes:
handheld protection machanism and lower extreme protection machanism, handheld end protection machanism is used for carrying out the splashproof protection to first handheld end, lower extreme protection machanism is used for carrying out the splashproof protection to user's limbs, handheld protection machanism and lower extreme protection machanism all with drive assembly mutually supports.
As a further scheme of the invention: the handheld guard mechanism includes:
the installation body is provided with an installation body, the installation body is provided with an arc-shaped groove, an arc-shaped protection plate is slidably sleeved on the arc-shaped groove, and a pushing spring is further sleeved on the arc-shaped groove and matched with the arc-shaped protection plate;
the groove is formed in one side of the arc-shaped groove, a clamping block is arranged in the groove in a sliding mode, a clamping groove is formed in the arc-shaped protection plate, and the clamping block is matched with the clamping groove;
one end of the first traction rope is wound on one side of the main shaft, and the other end of the first traction rope is connected with the clamping block.
As a further scheme of the invention: the length that the pushing spring naturally compressed is not less than the length of arc-shaped rod, just arc-shaped groove opening part is provided with the dog, the dog with the fluting is mutually supported, is used for restricting the displacement of arc guard plate.
As a further aspect of the invention: the lower end protection mechanism comprises:
the vertical groove is formed in the mounting body, a sliding rod is arranged in the vertical groove, and a sliding protection plate is arranged on the sliding rod in a sliding manner;
the auxiliary groove is formed in one side of the vertical groove, an auxiliary spring is arranged in the auxiliary groove, one end of the auxiliary spring is connected with a positioning block, one side of the sliding protection plate is provided with a positioning groove, and the positioning block is matched with the positioning groove;
the toothed plate is connected to the inside of the mounting body in a sliding mode and meshed with the driving gear, one end of the toothed plate is connected with a second traction rope, and one end of the second traction rope is connected with the positioning block.
The slotting equipment for building water and electricity installation provided by the embodiment of the invention has the following beneficial effects:
when this building water and electricity installation is with fluting equipment use, first handheld end and the handheld end of second are held respectively to user's both hands, and the handheld end of backward pulling second, then the handheld end of second can appear a rotation action when being pulled, then this rotation action can drive the protective component operation through drive assembly, make protective component expand completely, protect first handheld end and user's limbs, prevent that the granule of fluting in-process from splashing on user's hand or health, the security of use is improved, can carry out the fluting operation through the fluting mechanism afterwards.
Drawings
Fig. 1 is a schematic structural diagram of a slotting device for building hydroelectric installation, provided by an embodiment of the invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view at B of FIG. 1;
FIG. 4 is an enlarged view at C of FIG. 1;
fig. 5 is an enlarged view at D in fig. 1.
In the drawings: 1-an installation body; 2-fixing the frame; 3-slotting mechanism; 4-a first handheld end; 5-a second handheld end; 7-a drive assembly; 71-a sector groove; 72-a main shaft; 73-segment; 74-guide curved bar; 75-a spring; 76-a drive gear; 8-a hand-held guard mechanism; 81-arc groove; 82-an arc-shaped rod; 83-arc protection plate; 84-a push spring; 85-slotting; 86-a latch; 87-a card slot; 88-a first pull cord; 89-a block; 9-a lower end protection mechanism; 91-vertical slots; 92-a slide bar; 93-sliding guard plate; 94-an auxiliary tank; 95-an auxiliary spring; 96-positioning blocks; 97-positioning groove; 98-toothed plate; 99-a second pull cord.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, in the embodiment of the present invention, a slotting device for building hydroelectric installation comprises an installation body 1, a fixed frame 2 is connected to one side of the installation body 1, a slotting mechanism 3 is arranged inside the fixed frame 2, and the slotting device for building hydroelectric installation further comprises:
the device comprises a first handheld end 4 and a second handheld end 5, wherein a protection assembly and a driving assembly 7 are further arranged inside the mounting body 1, the driving assembly 7 is connected with the first handheld end 4, the driving assembly 7 is used for controlling the operation of the protection assembly, and the protection assembly is used for reducing the splashing of particle waste materials when the grooving mechanism 3 operates.
When this building water and electricity installation is with fluting equipment use, user's both hands grip first handheld end 4 and second handheld end 5 respectively, and pull the handheld end 5 of second backward, then the handheld end 5 of second can appear a rotation action when being pulled, then this rotation action can drive the protection component operation through drive assembly 7, make protection component 7 expand completely, protect first handheld end 4 and user's limbs, prevent that the granule of fluting in-process from splashing on user's hand or health, the security of use improves, can carry out the fluting operation through fluting mechanism 3 afterwards.
As shown in fig. 1 to 5, in the embodiment of the present invention, the driving assembly 7 includes:
the fan-shaped groove 71 is formed in one side of the mounting body 1, a main shaft 72 is rotatably connected to the inside of the fan-shaped groove 71, the protective assembly is matched with the main shaft 72, a fan-shaped block 73 is arranged on one side of the main shaft 72, and the first handheld end 4 is arranged on the fan-shaped block 73;
a guide curved rod 74 installed inside the sector groove 71, wherein the sector block 73 is connected with the guide curved rod 74 in a sliding manner, and a spring 75 is sleeved on the guide curved rod 74;
and the driving gear 76 is arranged on one side of the main shaft 72, and the driving gear 76 is matched with the protection component.
In the present embodiment, the guide curved lever 74 is centered on the axis of the main shaft 72.
As shown in fig. 1 to 5, in the embodiment of the present invention, the protection assembly includes:
As shown in fig. 1 to 5, in the embodiment of the present invention, the handheld guard mechanism 8 includes:
the mounting body 1 is provided with an arc-shaped groove 81, the arc-shaped groove 81 is formed in the mounting body 1, an arc-shaped rod 82 is arranged in the arc-shaped groove 81, an arc-shaped protection plate 83 is slidably sleeved on the arc-shaped rod 82, a pushing spring 84 is further sleeved on the arc-shaped rod 82, and the pushing spring 84 and the arc-shaped protection plate 83 are matched with each other;
the opening groove 85 is formed in one side of the arc-shaped groove 81, a clamping block 86 is arranged in the opening groove 85 in a sliding mode, a clamping groove 87 is formed in the arc-shaped protection plate 83, and the clamping block 86 is matched with the clamping groove 87;
one end of the first pulling rope 88 is wound around one side of the main shaft 72, and the other end is connected to the latch 86.
As shown in fig. 1 to 5, in the embodiment of the present invention, the naturally compressed length of the push spring 84 is not less than the length of the arc-shaped rod 82, and a stopper 89 is disposed at the opening of the arc-shaped slot 81, and the stopper 89 cooperates with the slot 85 to limit the moving distance of the arc-shaped protection plate 83.
As shown in fig. 1 to 5, in the embodiment of the present invention, the lower end guard mechanism 9 includes:
the vertical groove 91 is formed in the mounting body 1, a sliding rod 92 is arranged in the vertical groove 91, and a sliding protection plate 93 is arranged on the sliding rod 92 in a sliding manner;
an auxiliary groove 94, which is opened at one side of the vertical groove 91, wherein an auxiliary spring 95 is arranged in the auxiliary groove 94, one end of the auxiliary spring 95 is connected with a positioning block 96, one side of the sliding protection plate 93 is provided with a positioning groove 97, and the positioning block 96 and the positioning groove 97 are matched with each other;
a toothed plate 98 slidably connected inside the mounting body 1 and engaged with the driving gear 76, wherein one end of the toothed plate 98 is connected with a second traction rope 99, and one end of the second traction rope 99 is connected with the positioning block 96.
When the device is used, a user respectively holds the first handheld end 4 and the second handheld end 5 with two hands, and pulls the second handheld end 5 backwards, so that the second handheld end 5 can generate a rotation motion when pulled, the rotation motion can drive the main shaft 72 to rotate through the sector block 73, meanwhile, the spring 75 is compressed, when the main shaft 72 rotates, the drive gear 76 can be driven to rotate, the drive gear 76 can drive the toothed plate 98 to slide to one side, when the toothed plate 98 slides, the positioning block 96 can be driven to be put into the auxiliary groove 94 through the second traction rope 99, the auxiliary spring 95 is compressed, at this moment, the positioning block 96 can be separated from the positioning groove 97, under the action of gravity, the sliding protection plate 93 can directly slide out of the vertical groove 91, the limit is performed through the end edge part of the sliding protection plate 93 and the stop block at the opening of the vertical groove 91, the sliding protection plate 93 is used for protecting the limbs of the user, and the particles are prevented from splashing;
at the rotatory in-process of main shaft 72, still can drive first haulage rope 88 and carry out the rolling, then first haulage rope 88 can stimulate fixture block 86 and move up in fluting 85 when the rolling, make fixture block 86 break away from draw-in groove 87, then under the spring action of promotion spring 84 this moment, can promote arc guard plate 83 and slide on arc pole 82, until draw-in groove 87 and dog 89 contact, arc guard plate 83 stretches out arc wall 81 completely this moment, come to protect first handheld end 4, prevent that the granule from splashing and causing the injury to user's hand, the security of using improves.
To sum up, when this building water and electricity installation uses slotting device, user's both hands hold first handheld end 4 and second handheld end 5 respectively, and stimulate second handheld end 5 backward, then the second handheld end 5 can appear a rotation action when being promoted, then this rotation action can drive the protection component operation through drive assembly 7, make protection component 7 expand completely, protect first handheld end 4 and user's limbs, prevent that the granule of slotting in-process from splashing to user's hand or on the health, improve the security of using, can carry out the slotting operation through slotting mechanism 3 afterwards.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (7)
1. The utility model provides a building water and electricity installation is with slotting equipment, includes the installation body (1), installation body (1) one side is connected with fixed frame (2), fixed frame (2) inside is provided with slotting mechanism (3), its characterized in that, building water and electricity installation is with slotting equipment still includes:
the device comprises a first handheld end (4) and a second handheld end (5), wherein a protection assembly and a driving assembly (7) are further arranged inside an installation body (1), the driving assembly (7) is connected with the first handheld end (4), the driving assembly (7) is used for controlling the operation of the protection assembly, and the protection assembly is used for reducing the splashing of particle waste materials when the grooving mechanism (3) operates.
2. A slotting apparatus for the installation of building water and electricity according to claim 1, wherein the drive assembly (7) comprises:
the protective assembly comprises a fan-shaped groove (71) which is formed in one side of the mounting body (1), a main shaft (72) is rotatably connected into the fan-shaped groove (71), the protective assembly is matched with the main shaft (72), a fan-shaped block (73) is arranged on one side of the main shaft (72), and the first handheld end (4) is arranged on the fan-shaped block (73);
the guide curved rod (74) is installed inside the sector groove (71), the sector block (73) is connected with the guide curved rod (74) in a sliding mode, and a spring (75) is sleeved on the guide curved rod (74);
the driving gear (76) is installed on one side of the main shaft (72), and the driving gear (76) is matched with the protection assembly.
3. A slotting apparatus for the installation of building water and electricity according to claim 2, characterised in that the centre of the guide curved bar (74) is located on the axis of the main shaft (72).
4. A slotting apparatus for the installation of building water and electricity according to claim 2, wherein the guard assembly comprises:
handheld protection machanism (8) and lower extreme protection machanism (9), handheld end protection machanism (8) are used for carrying out the splashproof protection to first handheld end (4), lower extreme protection machanism (9) are used for carrying out the splashproof protection to user's limbs, handheld protection machanism (8) and lower extreme protection machanism (9) all with drive assembly (7) are mutually supported.
5. A slotting apparatus for the installation of building services and power according to claim 4, wherein the hand-held guard mechanism (8) comprises:
the mounting structure comprises an arc-shaped groove (81) which is arranged inside the mounting body (1), an arc-shaped rod (82) is arranged inside the arc-shaped groove (81), an arc-shaped protection plate (83) is sleeved on the arc-shaped rod (82) in a sliding mode, a pushing spring (84) is further sleeved on the arc-shaped rod (82), and the pushing spring (84) is matched with the arc-shaped protection plate (83);
the opening groove (85) is formed in one side of the arc-shaped groove (81), a clamping block (86) is arranged in the opening groove (85) in a sliding mode, a clamping groove (87) is formed in the arc-shaped protection plate (83), and the clamping block (86) is matched with the clamping groove (87);
and one end of the first traction rope (88) is wound on one side of the main shaft (72), and the other end of the first traction rope is connected with the fixture block (86).
6. A slotting apparatus for building water and electricity installation according to claim 5, wherein the length of the natural compression of the pushing spring (84) is not less than the length of the arc-shaped rod (82), a stop block (89) is arranged at the opening of the arc-shaped groove (81), and the stop block (89) is matched with the slot (85) for limiting the moving distance of the arc-shaped protection plate (83).
7. A slotting apparatus for the installation of building water and electricity according to claim 2, wherein the lower end guard mechanism (9) comprises:
the vertical groove (91) is arranged in the mounting body (1), a sliding rod (92) is arranged in the vertical groove (91), and a sliding protection plate (93) is arranged on the sliding rod (92) in a sliding manner;
the auxiliary groove (94) is formed in one side of the vertical groove (91), an auxiliary spring (95) is arranged in the auxiliary groove (94), one end of the auxiliary spring (95) is connected with a positioning block (96), one side of the sliding protection plate (93) is provided with a positioning groove (97), and the positioning block (96) is matched with the positioning groove (97);
toothed plate (98), sliding connection be in installation body (1) is inside, and with drive gear (76) intermeshing, toothed plate (98) one end is connected with second haulage rope (99), second haulage rope (99) one end with locating piece (96) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211306784.1A CN115625800B (en) | 2022-10-25 | 2022-10-25 | Grooving equipment for building hydropower installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211306784.1A CN115625800B (en) | 2022-10-25 | 2022-10-25 | Grooving equipment for building hydropower installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115625800A true CN115625800A (en) | 2023-01-20 |
| CN115625800B CN115625800B (en) | 2023-09-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211306784.1A Active CN115625800B (en) | 2022-10-25 | 2022-10-25 | Grooving equipment for building hydropower installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115625800B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009000755A (en) * | 2007-06-20 | 2009-01-08 | Hitachi Koki Co Ltd | Portable tool |
| JP2011177866A (en) * | 2010-03-03 | 2011-09-15 | Makita Corp | Engine cutter |
| CN105710942A (en) * | 2016-05-06 | 2016-06-29 | 国网山东省电力公司滨州市滨城区供电公司 | Falling-preventing electric saw |
| US20170259392A1 (en) * | 2016-03-10 | 2017-09-14 | Easthill Group, Inc. | Metal finishing rotary tool |
| CN211992368U (en) * | 2020-05-11 | 2020-11-24 | 王智 | Electric piping fluting device is used in building electromechanical installation |
| CN112223552A (en) * | 2020-11-05 | 2021-01-15 | 金螳螂精装科技（苏州）有限公司 | Assembled water and electricity installation is with fluting device |
| CN112368097A (en) * | 2018-07-02 | 2021-02-12 | 胡斯华纳有限公司 | Protective arrangement for a power tool |
| CN112895170A (en) * | 2021-01-15 | 2021-06-04 | 张刚 | Hand-held type ceramic tile cutting machine for building |
| CN215147940U (en) * | 2021-06-01 | 2021-12-14 | 汝城天邦建材有限公司 | Electric slabstone cutting machine |
| CN114454356A (en) * | 2022-03-22 | 2022-05-10 | 王永刚 | Lateral wall fluting device for construction |
-
2022
- 2022-10-25 CN CN202211306784.1A patent/CN115625800B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009000755A (en) * | 2007-06-20 | 2009-01-08 | Hitachi Koki Co Ltd | Portable tool |
| JP2011177866A (en) * | 2010-03-03 | 2011-09-15 | Makita Corp | Engine cutter |
| US20170259392A1 (en) * | 2016-03-10 | 2017-09-14 | Easthill Group, Inc. | Metal finishing rotary tool |
| CN105710942A (en) * | 2016-05-06 | 2016-06-29 | 国网山东省电力公司滨州市滨城区供电公司 | Falling-preventing electric saw |
| CN112368097A (en) * | 2018-07-02 | 2021-02-12 | 胡斯华纳有限公司 | Protective arrangement for a power tool |
| CN211992368U (en) * | 2020-05-11 | 2020-11-24 | 王智 | Electric piping fluting device is used in building electromechanical installation |
| CN112223552A (en) * | 2020-11-05 | 2021-01-15 | 金螳螂精装科技（苏州）有限公司 | Assembled water and electricity installation is with fluting device |
| CN112895170A (en) * | 2021-01-15 | 2021-06-04 | 张刚 | Hand-held type ceramic tile cutting machine for building |
| CN215147940U (en) * | 2021-06-01 | 2021-12-14 | 汝城天邦建材有限公司 | Electric slabstone cutting machine |
| CN114454356A (en) * | 2022-03-22 | 2022-05-10 | 王永刚 | Lateral wall fluting device for construction |
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| Publication number | Publication date |
|---|---|
| CN115625800B (en) | 2023-09-26 |
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