CN220146165U - Drilling device for construction engineering - Google Patents
Drilling device for construction engineering Download PDFInfo
- Publication number
- CN220146165U CN220146165U CN202321279606.4U CN202321279606U CN220146165U CN 220146165 U CN220146165 U CN 220146165U CN 202321279606 U CN202321279606 U CN 202321279606U CN 220146165 U CN220146165 U CN 220146165U
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- China
- Prior art keywords
- drilling
- quick
- bolts
- movable seat
- wall
- 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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- 238000005553 drilling Methods 0.000 title claims abstract description 126
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000003825 pressing Methods 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 238000001179 sorption measurement Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 12
- 239000002023 wood Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007734 materials engineering Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Drilling And Boring (AREA)
Abstract
The utility model provides a drilling device for construction engineering, which comprises a drilling platform, wherein a drilling through hole is formed in the middle part of the inside of the drilling platform, supporting legs are connected to four corners of the bottom of the drilling platform through bolts, supporting frames are connected to the middle parts of the left side and the right side of the upper part of the drilling platform through bolts, a cross beam is connected to the upper end of each supporting frame through bolts, a lifting push rod is connected to the middle part of the upper part of the cross beam through bolts, a lifting frame is connected to the lower end of an output rod of the lifting push rod through bolts, a drilling motor is connected to the middle part of the lower part of the lifting frame through bolts, a quick-release sleeve is connected to the outer wall of the lower end of the output shaft of the drilling motor through bolts, and a drilling head is arranged at the lower part of the inner side of the quick-release sleeve. According to the utility model, the back-shaped movable seat, the adjusting bolt, the U-shaped movable seat, the pressing flat rod and the movable pressing plate can be used for fixedly pressing drilling timber or other metal drilling engineering components with different thicknesses, so that the drilling stability is ensured.
Description
Technical Field
The utility model belongs to the technical field of construction engineering, and particularly relates to a drilling device for construction engineering.
Background
Construction engineering can be classified into three types of construction engineering, civil engineering and electromechanical engineering according to natural properties. House construction engineering, railway engineering, highway engineering, municipal engineering, coal mine engineering, water transportation engineering, marine engineering, civil aviation engineering, business and material engineering, agricultural engineering, forestry engineering, grain engineering, petroleum and natural gas engineering, marine petroleum engineering, thermal power engineering, hydroelectric engineering, nuclear industry engineering, building materials engineering, metallurgical engineering, nonferrous metal engineering, petrochemical engineering, chemical engineering, medical engineering, mechanical engineering, aerospace and aviation engineering, weapon and ship engineering, light engineering, textile engineering, electronic and communication engineering, broadcast movie and television engineering, and the like are contemplated.
At present, the construction engineering refers to the collective name of various buildings and engineering facilities which provide material technology foundation for human life and production. Construction engineering is an organized, purposeful, large-scale economic activity for humans. Construction engineering can be classified into three types of construction engineering, civil engineering and electromechanical engineering according to natural properties. Is an engineering project for forming comprehensive production capacity or exerting engineering benefit in the reproduction process of fixed assets. Construction engineering refers to building new or retrofitting original fixed assets. In the construction process of building construction, wood drilling operation is needed, and the wood drilling device is further applied to drilling devices in the prior art. However, the existing drilling devices still have the following disadvantages: the poor piece that causes easily of protection effect splashes when drilling, can't fix different drilling timber, can not carry out the quick replacement drill bit according to the drilling aperture demand and do not possess drilling piece and collect the function.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a drilling device for construction engineering, wherein the utility model is realized by the following technical scheme:
the drilling device comprises a drilling platform, wherein a drilling through hole is formed in the middle part of the inside of the drilling platform, supporting legs are connected to four corners of the bottom of the drilling platform through bolts, supporting frames are connected to the middle parts of the left side and the right side of the upper part of the drilling platform through bolts, a cross beam is connected to the upper ends of the supporting frames through bolts, a lifting push rod is connected to the middle part of the upper part of the cross beam through bolts, a lifting frame is connected to the lower end of an output rod of the lifting push rod through bolts, a drilling motor is connected to the middle part of the lower part of the lifting frame through bolts, a quick-release sleeve is connected to the outer wall of the lower end of an output shaft of the drilling motor through a key, a drilling head is mounted on the lower part of the inner side of the quick-release sleeve, a wood drilling pressing assembly is connected to the supporting frames, and a collecting box is arranged on the lower part of the drilling platform;
the timber drilling is pressed and is held the subassembly and adopt a pair to all including returning the type and remove the seat, every returns the type and remove the equal threaded connection in the seat outside and have adjusting bolt, and all welded U type movable seat at every returns the type and remove the inner of seat, and the inside equal bolted connection of every U type movable seat has the flat bar of pressing, and every presses and hold flat bar lower extreme and all the coupling has movable clamp plate.
Preferably, the movable seat is movably sleeved on the outer wall of the support frame and is fixedly connected and arranged through an adjusting bolt, and the movable pressing plate is made of an aluminum alloy plate with a rubber pad glued on the lower surface and is positioned on the inner side of the support frame.
Preferably, limit grooves are formed in the left side and the right side of the upper portion of the drill rod of the drilling head, quick-release bolts are inserted into the limit grooves, limit rings are sleeved on the outer wall of each quick-release bolt, and self-resetting springs are sleeved on the outer wall of each quick-release bolt.
Preferably, circular through holes are formed in the corresponding positions of the quick-release sleeve and the limiting groove of the drilling head, and the screw of the quick-release bolt also penetrates through the circular through holes.
Preferably, the self-resetting spring is a cylindrical stainless steel spring and is positioned between the inner wall of the quick-dismantling sleeve and the limiting ring.
Preferably, the crane lower part be provided with the protection section of thick bamboo to all weld or bolted connection has movable seat in the left and right sides middle part on protection section of thick bamboo upper portion, and has all pegged graft the bracing piece in the inside through-hole that sets up of every movable seat, and the equal threaded connection of every bracing piece lower extreme has the fender cap, has all cup jointed buffer spring at every bracing piece outer wall moreover.
Preferably, the protection cylinder adopts an aluminum alloy cylinder and is sleeved on the outer wall of the drilling head.
Preferably, the buffer spring is a cylindrical stainless steel spring and is arranged between the lifting frame and the movable seat, and the blocking cap is arranged at the lower end of the movable seat.
Preferably, the left and right sides of collecting box upper end all bolted connection have the adsorption block to upper portion all bolted connection has iron impurity adsorption piece in the left and right sides of collecting box inner wall, and the well lower part screw connection of collecting box inboard has the filter screen moreover, and is provided with the clearance bottom in collecting box bottom exit, and the junction threaded connection between collecting box and clearance bottom has the clearance bolt.
Preferably, the adsorption block adopts a permanent magnet block and is adsorbed at the lower part of the drilling platform.
Preferably, the iron impurity adsorption sheet adopts a permanent magnet sheet.
Preferably, the filter screen adopts a stainless steel filter screen with rough round holes.
Preferably, the lifting push rod and the drilling motor are common electrical appliances in the market, so that redundant description is omitted, and the lifting push rod and the drilling motor are electrically connected with a control panel arranged outside.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the support legs, the support frame and the cross beam can ensure the stability during drilling and improve the drilling efficiency.
2. According to the utility model, the loop-shaped movable seat, the adjusting bolt, the U-shaped movable seat, the pressing flat rod and the movable pressing plate can be used for fixedly pressing drilling timber or other metal drilling engineering components with different thicknesses, so that the drilling stability is ensured.
3. According to the utility model, the limiting groove, the quick-release bolt, the limiting ring and the self-resetting spring can be used for quickly disassembling and replacing the drilling head, so that the drilling effect is ensured, and the drilling requirement is met.
4. According to the utility model, the protection cylinder, the movable seat, the support rod and the baffle cap are provided with the buffer spring, so that a good protection effect can be achieved during drilling, and fragments are prevented from splashing, thereby ensuring the safety of drilling.
5. According to the utility model, the adsorption block, the iron impurity adsorption sheet, the filter screen and the cleaning bottom cover and the cleaning bolt can collect chips generated in drilling holes, so that environmental pollution is avoided, separation and cleaning can be performed, and the operation is convenient.
6. In the utility model, the collecting box is arranged to collect scraps, so that the cleaning is convenient.
7. According to the drilling platform and the drilling through hole, the drilling effect can be guaranteed, and the drilling efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the wood drilling press assembly of the present utility model.
Fig. 3 is a schematic view of the connection structure of the quick release sleeve and the drill head of the present utility model.
Fig. 4 is a schematic structural view of the protective sleeve of the present utility model.
Fig. 5 is a schematic structural view of the collecting box of the present utility model.
In the figure:
1. a drilling station; 2. drilling a through hole; 3. support legs; 4. a support frame; 5. a cross beam; 6. lifting the push rod; 7. a lifting frame; 8. a drilling motor; 9. quick-dismantling the sleeve; 10. a drilling head; 11. a wood drilling and holding assembly; 12. a collection box; 13. a loop-shaped movable seat; 14. an adjusting bolt; 15. a U-shaped movable seat; 16. pressing and holding the flat bar; 17. a movable pressing plate; 18. a limit groove; 19. quick-dismantling bolts; 20. a limiting ring; 21. a self-resetting spring; 22. a protective cylinder; 23. a movable seat; 24. a support rod; 25. a blocking cap; 26. a buffer spring; 27. an adsorption block; 28. iron impurity adsorption sheets; 29. a filter screen; 30. cleaning a bottom cover; 31. and cleaning the bolts.
Detailed Description
The utility model is specifically described below with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a drilling device for construction engineering comprises a drilling platform 1, a drilling through hole 2 is formed in the middle part inside the drilling platform 1, the drilling effect is guaranteed, supporting legs 3 are connected to four corners of the bottom of the drilling platform 1 through bolts, the supporting stability is guaranteed, supporting frames 4 are connected to the middle parts of the left side and the right side of the upper part of the drilling platform 1 through bolts, a cross beam 5 is connected to the upper ends of the supporting frames 4 through bolts, the supporting stability is guaranteed, a lifting push rod 6 is connected to the middle part of the upper part of the cross beam 5 through bolts, lifting pushing can be carried out, so that drilling operation can be conveniently carried out, a lifting frame 7 is connected to the lower end of an output rod of the lifting push rod 6 through bolts, a drilling motor 8 is connected to the middle part of the lower part of the lifting frame 7 through bolts, the drilling efficiency is guaranteed, a quick-dismantling sleeve 9 is connected to the outer wall key of the lower end of an output shaft of the drilling motor 8, a drilling head 10 is installed at the lower part of the inner side of the quick-dismantling sleeve 9, a wood drilling pressure holding assembly 11 is connected to the supporting frames 4, and a collecting box 12 is arranged at the lower part of the drilling platform 1 through which can conveniently collect impurities generated in the drilling operation;
the timber drilling is pressed and is held subassembly 11 adopts a pair of to all including returning type and remove seat 13, every returns type and removes the equal threaded connection in the seat 13 outside and have adjusting bolt 14, and all welded U type movable seat 15 at every returns type and remove the inner of seat 13, and every U type movable seat 15 is inside to be equal bolted connection to hold flat bar 16, and every presses and hold flat bar 16 lower extreme and all the coupling has movable clamp plate 17, the activity of returning type remove seat 13 cup joint at the outer wall of support frame 4 to through adjusting bolt 14 fastening connection setting, movable clamp plate 17 adopt the aluminium alloy plate that the lower surface glued and has the rubber pad, and be located the inboard of support frame 4, can carry out drilling fixed pressure operation to drilling timber through movable clamp plate 17, so as to guarantee drilling stability, can also remove through returning type movable seat 13, so that the fixed pressure is held the drilling timber of different thickness.
In this embodiment, referring to fig. 3, limiting grooves 18 are formed on left and right sides of an upper portion of a drill rod of the drill head 10, quick-release bolts 19 are inserted into each limiting groove 18, limiting rings 20 are sleeved on outer walls of screws of the quick-release bolts 19, self-resetting springs 21 are sleeved on outer walls of screws of the quick-release bolts 19, circular through holes are formed in corresponding portions of the quick-release sleeves 9 and the limiting grooves 18 of the drill head 10, screws of the quick-release bolts 19 penetrate through the circular through holes, the self-resetting springs 21 are cylindrical stainless steel springs and are located between inner walls of the quick-release sleeves 9 and the limiting rings 20, the screws of the quick-release bolts 19 leave the limiting grooves 18 by pulling the quick-release bolts 19, and the quick-release sleeves 9 and the drill head 10 are separated at the moment and can be replaced quickly so as to facilitate drilling operation.
In this embodiment, combine the fig. 4 to show, crane 7 lower part be provided with protective tube 22, and all weld or bolted connection have movable seat 23 in the left and right sides middle part on protective tube 22 upper portion, and all peg graft in the through-hole that every movable seat 23 inside set up and have bracing piece 24, and the equal threaded connection of every bracing piece 24 lower extreme has a fender cap 25, play spacing effect, still can be convenient for dismantle, convenient operation, buffer spring 26 has all been cup jointed at every bracing piece 24 outer wall moreover, play from reset effect, convenient operation, protective tube 22 adopt an aluminum alloy tube, lighten the weight, be convenient for operate, play the effect that the anti-chip splashes, guarantee drilling security to cup joint at drilling head 10 outer wall, buffer spring 26 adopt cylindrical stainless steel spring, and set up between crane 7 and movable seat 23, fender cap 25 set up at movable seat 23 lower extreme.
In this embodiment, referring to fig. 5, the left and right sides of the upper end of the collecting box 12 are all bolted connection has the adsorption block 27, the adsorption block 27 adopt the permanent magnet piece, the convenient absorption is dismantled, the convenient clearance, and adsorb in drilling platform 1 lower part, and the equal bolted connection in upper portion has the iron impurity adsorption piece 28 in the left and right sides of collecting box 12 inner wall, iron impurity adsorption piece 28 adopt the permanent magnet piece, can adsorb the iron fillings that appear in the non-timber metal drilling in real time, in addition the mid-lower part screw connection in collecting box 12 inboard has the filter screen 29, the filter screen 29 adopt the coarse round hole stainless steel filter screen, can filter, the separation processing clearance of being convenient for, convenient operation, and be provided with clearance bottom 30 in collecting box 12 bottom exit, and the junction threaded connection between collecting box 12 and clearance bottom 30 has clearance bolt 31, can dismantle the maintenance, convenient operation.
The working process of the utility model is as follows: placing wood on the upper part of the drilling platform 1, and then loosening the adjusting bolt 14 to move and adjust the back-type movable seat 13, so that the pressing flat rod 16 in the U-shaped movable seat 15 drives the movable pressing plate 17 to move downwards until the wood is pressed, and drilling operation can be performed; the lifting pushing rod 6 drives the lifting frame 7 to drive the drilling motor 8 to move downwards, so that drilling operation can be performed, the drilling motor 8 drives the quick-release sleeve 9 to drive the drilling head 10 to rotate, the drilling operation can be performed, when the drilling head 10 is replaced, the quick-release bolt 19 can be directly pulled outwards, the quick-release bolt 19 is separated from the limit groove 18, the drilling head 10 can be separated and replaced, in drilling, the anti-splashing protection operation can be performed by moving the protection cylinder 22 downwards and contacting the upper surface of the drilling platform 1, splashing under the age is avoided, the buffer spring 26 is self-reset, the drilling head 10 can be protected when not drilling, damage is avoided, the using function is increased, and the chips can be separated and filtered through the filter screen 29, can be cleaned quickly, and can be cleaned through the collection box 12, so that the drilling environment is ensured.
By using the technical scheme of the utility model or under the inspired by the technical scheme of the utility model, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical effects fall into the protection scope of the utility model.
Claims (10)
1. The utility model provides a drilling equipment for construction engineering, including drilling platform (1), characterized in that, drilling through-hole (2) have been seted up at the inside middle part of drilling platform (1), and all bolted connection has supporting leg (3) at the four corners position of drilling platform (1) bottom, and all bolted connection has support frame (4) at the left and right sides middle part on drilling platform (1) upper portion, and upper end bolted connection has crossbeam (5) between support frame (4), and there is lift push rod (6) at the middle part bolted connection on crossbeam (5) upper portion, and there is crane (7) at the output pole lower extreme bolted connection of lift push rod (6), and there is drilling motor (8) at crane (7) lower part middle part bolted connection, and the output shaft lower extreme outer wall key of drilling motor (8) is connected with quick detach sleeve pipe (9), install drilling head (10) at quick detach sleeve pipe (9) inboard lower part, and support frame (4) are timber hold-down subassembly (11), and be provided with collection box (12) in drilling platform (1) lower part;
the timber drilling is pressed and is held subassembly (11) adopts a pair of to all including returning movable seat (13), every returns the outside of movable seat (13) and all threaded connection has adjusting bolt (14), and all welded U type movable seat (15) at every returns movable seat (13) inner, and the inside equal bolted connection of every U type movable seat (15) has to press and hold flat bar (16), and every presses and hold flat bar (16) lower extreme and all the coupling has movable clamp plate (17).
2. Drilling device for construction engineering according to claim 1, characterized in that the said moving seat (13) is movably sleeved on the outer wall of the supporting frame (4) and is fixedly connected by the adjusting bolt (14), the said movable pressing plate (17) is made of aluminum alloy plate with rubber pad glued on the lower surface and is located on the inner side of the supporting frame (4).
3. Drilling device for construction engineering according to claim 1, characterized in that the left and right sides of the upper part of the drill rod of the drilling head (10) are provided with limiting grooves (18), quick-release bolts (19) are inserted into each limiting groove (18), limiting rings (20) are sleeved on the outer wall of the screw of each quick-release bolt (19), and self-resetting springs (21) are sleeved on the outer wall of the screw of each quick-release bolt (19).
4. Drilling device for construction engineering according to claim 1, characterized in that the corresponding parts of the quick-release sleeve (9) and the limit groove (18) of the drilling head (10) are provided with circular through holes, and the screw of the quick-release bolt (19) also passes through the circular through holes.
5. A drilling device for construction works according to claim 3, characterized in that the self-resetting spring (21) is a cylindrical stainless steel spring and is located between the inner wall of the quick release sleeve (9) and the stop collar (20).
6. Drilling device for construction engineering according to claim 1, characterized in that the lower part of the lifting frame (7) is provided with a protective cylinder (22), the middle parts of the left side and the right side of the upper part of the protective cylinder (22) are welded or connected with movable seats (23) through bolts, supporting rods (24) are inserted in through holes formed in the inner parts of each movable seat (23), the lower end of each supporting rod (24) is connected with a blocking cap (25) through threads, and a buffer spring (26) is sleeved on the outer wall of each supporting rod (24).
7. Drilling device for construction works according to claim 6, characterized in that the protective cylinder (22) is an aluminium alloy cylinder and is sleeved on the outer wall of the drilling head (10).
8. Drilling device for construction works according to claim 6, characterized in that the buffer spring (26) is a cylindrical stainless steel spring and is arranged between the lifting frame (7) and the movable seat (23), and the blocking cap (25) is arranged at the lower end of the movable seat (23).
9. Drilling device for construction works according to claim 1, characterized in that the left and right sides of the upper end of the collecting box (12) are both bolted with adsorption blocks (27), and the middle and upper parts of the left and right sides of the inner wall of the collecting box (12) are both bolted with iron impurity adsorption sheets (28), and the middle and lower part of the inner side of the collecting box (12) is screwed with a filter screen (29), and a cleaning bottom cover (30) is arranged at the outlet of the bottom of the collecting box (12), and a cleaning bolt (31) is screwed at the joint between the collecting box (12) and the cleaning bottom cover (30).
10. Drilling device for construction works according to claim 9, characterized in that the suction block (27) is a permanent magnet block and is sucked in the lower part of the drilling table (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321279606.4U CN220146165U (en) | 2023-05-25 | 2023-05-25 | Drilling device for construction engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321279606.4U CN220146165U (en) | 2023-05-25 | 2023-05-25 | Drilling device for construction engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220146165U true CN220146165U (en) | 2023-12-08 |
Family
ID=89006658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321279606.4U Active CN220146165U (en) | 2023-05-25 | 2023-05-25 | Drilling device for construction engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220146165U (en) |
-
2023
- 2023-05-25 CN CN202321279606.4U patent/CN220146165U/en active Active
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