CN114378334B - Single operable multi-angle perforating device - Google Patents
Single operable multi-angle perforating device Download PDFInfo
- Publication number
- CN114378334B CN114378334B CN202210105753.3A CN202210105753A CN114378334B CN 114378334 B CN114378334 B CN 114378334B CN 202210105753 A CN202210105753 A CN 202210105753A CN 114378334 B CN114378334 B CN 114378334B
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- fixed
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- welded
- fixing base
- installation fixing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0071—Devices for removing chips dust collectors for hand tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/06—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of trestle type
-
- 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
Abstract
The invention mainly relates to the field of punching, in particular to a single-person-operable multi-angle punching device. The utility model provides a single operable multi-angle perforating device, including the installation fixing base, the top fixed mounting of installation fixing base has four support columns, the top fixed mounting of support column has the backup pad, the inner wall sliding connection of backup pad has the bracing piece, the top welding of bracing piece has the mounting panel, the right side of mounting panel is provided with operating mechanism, the inside of installation fixing base is provided with fixed establishment, the surface of support column is provided with drive mechanism, the surface welding of installation fixing base has the connecting rod, the bottom of installation fixing base has the universal wheel through bolted connection. The angle adjustment can be carried out on the punching device by a single person through the cooperation of the working mechanism and the transmission mechanism, the application range of the device is greatly increased, and the punching device only needs single operation, so that the punching device is very convenient and quick, the investment of labor cost is reduced, and the working efficiency is increased.
Description
Technical Field
The invention mainly relates to the field of punching, in particular to a single-person-operable multi-angle punching device.
Background
The punching device is a general name of equipment for processing holes on solid materials, common drilling devices include electric drills, drilling machines and the like, and the efficiency of the drilling device is greatly improved along with the further development of a processing technology.
The perforating device in the current market can only punch holes at fixed angles, is very limited, needs to punch holes in cooperation with people, is very troublesome, and can also increase the problem of labor cost, so that a single-person-operable multi-angle perforating device is provided to solve the problem.
Disclosure of Invention
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a single operable multi-angle perforating device, includes the installation fixing base, the top fixed mounting of installation fixing base has four support columns, the top fixed mounting of support column has the backup pad, the inner wall sliding connection of backup pad has the bracing piece, the top welding of bracing piece has the mounting panel, the right side of mounting panel is provided with operating mechanism, the inside of installation fixing base is provided with fixed establishment, the surface of support column is provided with drive mechanism, the surface welding of installation fixing base has the connecting rod, the bottom of installation fixing base has the universal wheel through bolted connection.
Further, the operating mechanism comprises a fixed plate, the top of fixed plate is through bolted connection there being fixed case, the inner wall sliding connection of fixed case has the collecting box, the right side welding of collecting box has the handle, there is the motor bottom of fixed plate through bolted connection, the output welding of motor has the pivot, the top fixed mounting of pivot has the drill bit, the surface welding of pivot has a belt pulley, the surface of belt pulley passes through the belt and is connected with the surface transmission of No. two belt pulleys, the axle center department welding of No. two belt pulleys has the connecting axle, the top welding of connecting axle has the fan, and the bottom of collecting box is the filter screen.
Further, the left side of fixed plate rotates with the right side of mounting panel to be connected, the surface of pivot rotates with the inner wall of fixed plate to be connected, the surface of No. one belt pulley and No. two belt pulleys all rotates with the inner wall of fixed plate to be connected, the surface of connecting axle rotates with the inner wall of fixed plate and fixed box respectively to be connected, the fan is located between fixed box and the collection box, the left side of fixed plate is provided with adjusting device.
Further, the adjusting device comprises a fixed shaft, a driving gear is welded at the left end of the fixed shaft, a first rack is meshed with the surface of the driving gear, a line drawing rod is fixedly arranged at the top of the first rack, and an electric push rod is welded at the bottom of the first rack.
Further, the right end of the fixed shaft is fixed with the left side of the fixed plate in a welding way, the surface of the fixed shaft is rotationally connected with the inner wall of the mounting plate, the right side of the first rack is in sliding connection with the left side of the mounting plate, and the surface of the electric push rod is connected to the left side of the mounting plate through a bolt.
Further, the fixed establishment is including the crank, the surface welding of crank has drive gear, drive gear's surface engagement has two No. two racks, no. two rack's front portion welding has the slider, the inner wall sliding connection of slider has the sloping block, the bottom welding of sloping block has the inserted bar, and the crank surface is provided with the annular knurl.
Further, the crank surface is rotationally connected with the inner wall of the installation fixing base, the left side of the second rack is in sliding connection with the inner wall of the installation fixing base, the surface of the sliding block is in sliding connection with the inner wall of the installation fixing base, the surface of the inserted link is in sliding connection with the inner wall of the installation fixing base, an inclined plane is arranged on the inner wall of the sliding block, and the inclined block can be driven to move through the inclined plane.
Further, the transmission mechanism comprises a fixed rod, a shaft sleeve is sleeved on the surface of the fixed rod, a lever is welded on the surface of the shaft sleeve, a mounting groove is formed in the surface of the supporting rod, a bolt is inserted into the inner wall of the mounting groove, a limit post is connected to the surface of the supporting rod in a sliding mode, and knurling is arranged on the surface of the lever.
Further, the surface of dead lever and the surface welded fastening of support column, the inner wall of lever and the surface grafting of bolt are fixed, the both sides and the inner wall swing joint of mounting groove of lever, the bottom and the top welded fastening of connecting rod of spacing post.
The invention has the beneficial effects that:
1. through the cooperation of operating mechanism and drive mechanism use can make a person just can carry out the adjustment of angle to the perforating device, greatly increased device application scope, and only need alone during punching the operation can, very convenient and fast can reduce the input of cost of labor, increase work efficiency.
2. Can absorb the dust of boring out when drilling through operating mechanism, prevent that it from flying upward, and then by workman's suction inlet nose in, and then influence workman's physical safety, reduced the potential safety hazard.
3. Can fix the device after the device removes the position of punching through fixed establishment, prevent that the device from taking place to remove when punching, and then lead to punching to take place the slope, even the rupture of drill bit, and then influence the practicality, still can increase maintenance cost.
4. Through the collecting box in the operating mechanism, dust can be collected, and cleaning is convenient, recycling can be achieved, cleaning is convenient, and the device is more convenient and quick to use.
5. The rotary drill bit and dust collection can be driven simultaneously through one motor, so that the placement quantity of the motor can be reduced, the investment of cost is reduced, the occupation of space can be reduced, the synchronous operation of the motor and the drill bit is realized, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a work mechanism;
FIG. 3 is a schematic diagram of another work mechanism;
FIG. 4 is a schematic diagram of another work mechanism;
FIG. 5 is a schematic view of a fixing mechanism;
FIG. 6 is a schematic view of another securing mechanism;
fig. 7 is a schematic diagram of the structure of the transmission mechanism.
Reference numerals illustrate: 1. mounting fixing seat, 2, support column, 3, support plate, 4, support rod, 5, mounting plate, 6, working mechanism, 61, fixing plate, 611, no. two belt pulleys, 612, connecting shaft, 613, fan, 62 fixing box, 63, collecting box, 64, handle, 65, motor, 66, drill bit, 67, adjusting device, 671, fixing shaft, 672, driving gear, 673, no. one rack, 674, line drawing rod, 68, rotating shaft, 69, no. one belt pulley, 7, fixing mechanism, 71, crank, 72, transmission gear, 73, no. two rack, 74, slide block, 75, oblique block, 76, insert rod, 8, transmission mechanism, 81, fixing rod, 82, shaft sleeve, 83, lever, 84, mounting groove, 85, latch, 86, limit post, 9, connecting rod, 10, universal wheel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Examples
As shown in FIG. 1, a single operable multi-angle perforating device, including installation fixing base 1, the top fixed mounting of installation fixing base 1 has four support columns 2, the top fixed mounting of support column 2 has backup pad 3, the inner wall sliding connection of backup pad 3 has bracing piece 4, the top welding of bracing piece 4 has mounting panel 5, the right side of mounting panel 5 is provided with operating mechanism 6, the inside of installation fixing base 1 is provided with fixed establishment 7, the surface of support column 2 is provided with drive mechanism 8, the surface welding of installation fixing base 1 has connecting rod 9, the bottom of installation fixing base 1 has universal wheel 10 through bolted connection, wherein universal wheel 10 is used for facilitating the removal of device, triangle-shaped support column 2 can increase the stability of device, prevent that the device from taking place to rock, and then prevent that punching position from taking place the skew.
As shown in fig. 2, the working mechanism 6 comprises a fixed plate 61, a fixed box 62 is connected to the top of the fixed plate 61 through a bolt, a collecting box 63 is connected to the inner wall of the fixed box 62 in a sliding manner, a handle 64 is welded to the right side of the collecting box 63, a motor 65 is connected to the bottom of the fixed plate 61 through a bolt, a rotating shaft 68 is welded to the output end of the motor 65, a drill bit 66 is fixedly arranged at the top end of the rotating shaft 68, a first belt pulley 69 is welded to the surface of the rotating shaft 68, the surface of the first belt pulley 69 is in transmission connection with the surface of a second belt pulley 611 through a belt, a connecting shaft 612 is welded to the axis of the second belt pulley 611, a fan 613 is welded to the top end of the connecting shaft 612, and a filter screen is arranged at the bottom of the collecting box 63; the collecting box 63 can carry out western region 2 on dust generated during drilling, so that the dust is prevented from flying, and further, the dust is prevented from being sucked by the nose of a human mouth, and the personal safety is influenced; and the collection box 63 can be recycled after dust is treated, thereby improving usability.
As shown in fig. 3, the left side of the fixed plate 61 is rotatably connected with the right side of the mounting plate 5, the surface of the rotating shaft 68 is rotatably connected with the inner wall of the fixed plate 61, the surfaces of the first belt pulley 69 and the second belt pulley 611 are rotatably connected with the inner wall of the fixed plate 61, the surface of the connecting shaft 612 is rotatably connected with the inner wall of the fixed plate 61 and the inner wall of the fixed box 62 respectively, the fan is positioned between the fixed box 62 and the collecting box 63, and the left side of the fixed plate 61 is provided with the adjusting device 67; the belt transmission can alleviate impact and vibration, so that the motion is stable and noiseless, slipping occurs when the load is overlarge, and other parts are prevented from being damaged.
As shown in fig. 4, the adjusting device 67 includes a fixed shaft 671, a driving gear 672 is welded at the left end of the fixed shaft 671, a first rack 673 is meshed with the surface of the driving gear 672, a line drawing rod 674 is fixedly installed at the top of the first rack 673, and an electric push rod 675 is welded at the bottom of the first rack 673; the adjusting device 67 enables a single person to adjust the angle of the punching device, the application range of the device is increased, the practicability of the device is improved, and popularization and use are facilitated.
The right end of the fixed shaft 671 is welded and fixed with the left side of the fixed plate 61, the surface of the fixed shaft 671 is rotationally connected with the inner wall of the mounting plate 5, the right side of the first rack 673 is slidingly connected with the left side of the mounting plate 5, and the surface of the electric push rod 675 is connected with the left side of the mounting plate 5 through a bolt; when the electric push rod 675 drives the line drawing rod 674 to move upwards, the drill bit 66 can rotate, and then the drill bit 66 can not prevent the line drawing rod 674 from drawing lines, so that interference between the drill bit 66 and the line drawing rod 674 is prevented, and further, the line drawing rod 674 is prevented from being unable to work normally, and subsequent drilling cannot be accurately positioned.
As shown in fig. 5, the fixing mechanism 7 comprises a crank 71, a transmission gear 72 is welded on the surface of the crank 71, two second racks 73 are meshed on the surface of the transmission gear 72, a sliding block 74 is welded at the front part of the second racks 73, an inclined block 75 is connected with the inner wall of the sliding block 74 in a sliding manner, an inserted link 76 is welded at the bottom of the inclined block, and knurling is arranged on the surface of the crank 71; two inserted bars 76 in the fixing mechanism 7 can fix the device after the device moves to the punching position, so that the device is prevented from moving during punching, further the punching is prevented from tilting, even the drill bit 66 is broken, the practicability is further affected, and the maintenance cost is further increased.
As shown in fig. 6, the surface of the crank 71 is rotationally connected with the inner wall of the installation fixing seat 1, the left side of the second rack 73 is slidably connected with the inner wall of the installation fixing seat 1, the surface of the sliding block 74 is slidably connected with the inner wall of the installation fixing seat 1, the surface of the inserting rod 76 is slidably connected with the inner wall of the installation fixing seat 1, an inclined surface is arranged on the inner wall of the sliding block 74, and the inclined block can be driven to move through the inclined surface; further, the effect of supporting and fixing is achieved, and the knurling is arranged on the surface of the crank 71, so that friction force can be increased, slipping of hands is prevented, safety accidents are prevented, and safety is improved.
The transmission mechanism 8 comprises a fixed rod 81, a shaft sleeve 82 is sleeved on the surface of the fixed rod 81, a lever 83 is welded on the surface of the shaft sleeve 82, a mounting groove 84 is formed in the surface of the supporting rod 4, a bolt 85 is inserted into the inner wall of the mounting groove 84, a limit column 86 is slidably connected with the surface of the supporting rod 4, knurling is arranged on the surface of the lever 83, friction force between a hand and the lever 83 can be increased, slipping is prevented from occurring during use, the lever 83 is further caused to be unhooked, and then a safety accident occurs; only one person is needed to operate when punching can be realized through the lever 83 in the transmission mechanism 8, so that the operation is very convenient and quick, the investment of labor cost can be reduced, and the working efficiency is improved.
As shown in fig. 7, the surface of the fixing rod 81 is welded and fixed with the surface of the supporting column 2, the inner wall of the lever 83 is spliced and fixed with the surface of the bolt 85, two sides of the lever 83 are movably connected with the inner wall of the mounting groove 84, and the bottom end of the limit column 86 is welded and fixed with the top of the connecting rod 9; the bolt 85 can facilitate the disassembly and the assembly of the lever 83 in the transmission mechanism 8, and the lever 83 is lengthened according to the actual situation, when the lever 83 is longer, the force of a worker pressing the lever 83 is smaller, so that the labor is saved.
The working principle of the device is as follows:
the electric push rod 675 drives the first rack 673 to move upwards, the first rack 673 drives the line drawing rod 674 to move upwards, the first rack 673 drives the driving gear 672 to rotate, the driving gear 672 drives the fixed shaft 671 to rotate, the fixed shaft 671 drives the fixed plate 61 to rotate, the fixed plate 61 drives the motor 65 to rotate, the motor 65 drives the rotating shaft 68 to rotate, and the rotating shaft 68 drives the drill bit 66 to rotate, so that the angle of the punching device is adjusted;
starting a motor 65 and pushing the device to vertically punch the wall, when a hole on the top is required to be punched, moving the pushing device to the punching position, rotating a crank 71, driving a transmission gear 72 to rotate by the crank 71, driving a second rack 73 to move by the transmission gear 72, driving a sliding block 74 to move by the second rack 73, driving an inclined block 75 to move downwards by the sliding block 74, driving an inserting rod 76 to move downwards by the inclined block 75, and fixing the inserting rod 76 on the ground to prevent the device from moving during punching;
pressing lever 83, lever 83 passes through the spacing of axle sleeve 82 and dead lever 81, make lever 83 push up bolt 85 in the opposite direction, and bolt 85 can drive bracing piece 4 to reciprocate, bracing piece 4 drives mounting panel 5 to reciprocate, mounting panel 5 drives electric putter 675 to reciprocate, electric putter 675 drives rack one 673 to reciprocate rack one 673 and drives drawing rod 674 to reciprocate, drawing rod 674 can carry out the drawing at the top at this moment, loosen lever 83 after the drawing, the device can reset at this moment, electric putter 675 also resets, at this moment drill bit 66 can rotate reset and perpendicular to the top, after adjusting the device to the drawing position, fix the device again, and press lever 83, at this moment lever 83 drives mounting panel 5 to reciprocate, mounting panel 5 drives fixed plate 61 through fixed axle 671 to reciprocate, fixed plate 61 drives motor 65 to reciprocate, motor 65 drives pivot 68, pivot 68 to reciprocate, simultaneously pivot 68 drives pivot 66 to reciprocate, pivot 68 rotates, no. 69 drives No. two pulleys to rotate, no. 611 drives connecting axle 612, connecting axle 612 rotates 613, when fan 613 rotates, dust collection box 63 is drawn out, dust collection box when dust collection box is carried out in the time, dust collection box is reached through the rotation of fan 613.
The present invention can be easily implemented by those skilled in the art through the above specific embodiments. It should be understood that the invention is not limited to the particular embodiments described above. Based on the disclosed embodiments, a person skilled in the art may combine different technical features at will, so as to implement different technical solutions.
Claims (5)
1. A single operable multi-angle perforating device, its characterized in that: including installation fixing base (1), the top fixed mounting of installation fixing base (1) has four support columns (2), the top fixed mounting of support column (2) has backup pad (3), the inner wall sliding connection of backup pad (3) has bracing piece (4), the top welding of bracing piece (4) has mounting panel (5), the right side of mounting panel (5) is provided with operating mechanism (6), the inside of installation fixing base (1) is provided with fixed establishment (7), the surface of support column (2) is provided with drive mechanism (8), the surface welding of installation fixing base (1) has connecting rod (9), the bottom of installation fixing base (1) is through bolted connection universal wheel (10); the working mechanism (6) comprises a fixed plate (61), the top of the fixed plate (61) is connected with a fixed box (62) through a bolt, the inner wall of the fixed box (62) is connected with a collecting box (63) in a sliding mode, the right side of the collecting box (63) is welded with a handle (64), the bottom of the fixed plate (61) is connected with a motor (65) through a bolt, the output end of the motor (65) is welded with a rotating shaft (68), the top end of the rotating shaft (68) is fixedly provided with a drill bit (66), the surface of the rotating shaft (68) is welded with a first belt pulley (69), the surface of the first belt pulley (69) is connected with the surface of a second belt pulley (611) through a belt in a transmission mode, the axis of the second belt pulley (69) is welded with a connecting shaft (612), the top end of the connecting shaft (612) is welded with a fan (613), and the bottom of the collecting box (63) is a filter screen. The left side of the fixed plate (61) is rotationally connected with the right side of the mounting plate (5), the surface of the rotating shaft (68) is rotationally connected with the inner wall of the fixed plate (61), the surfaces of the first belt pulley (69) and the second belt pulley (611) are rotationally connected with the inner wall of the fixed plate (61), the surface of the connecting shaft (612) is rotationally connected with the inner wall of the fixed plate (61) and the inner wall of the fixed box (62) respectively, the fan is positioned between the fixed box (62) and the collecting box (63), and an adjusting device (67) is arranged on the left side of the fixed plate (61); the adjusting device (67) comprises a fixed shaft (671), a driving gear (672) is welded at the left end of the fixed shaft (671), a first rack (673) is meshed with the surface of the driving gear (672), a line drawing rod (674) is fixedly arranged at the top of the first rack (673), and an electric push rod (675) is welded at the bottom of the first rack (673); the right end of the fixed shaft (671) is welded and fixed with the left side of the fixed plate (61), the surface of the fixed shaft (671) is rotationally connected with the inner wall of the mounting plate (5), the right side of the first rack (673) is in sliding connection with the left side of the mounting plate (5), and the surface of the electric push rod (675) is connected with the left side of the mounting plate (5) through bolts.
2. A single operable multi-angle punch device as claimed in claim 1, wherein: the fixing mechanism (7) comprises a crank (71), a transmission gear (72) is welded on the surface of the crank (71), two second racks (73) are meshed on the surface of the transmission gear (72), a sliding block (74) is welded on the front portion of each second rack (73), an inclined block (75) is connected with the inner wall of each sliding block (74) in a sliding mode, a plug rod (76) is welded on the bottom of each inclined block, and knurling is arranged on the surface of the crank (71).
3. A single operable multi-angle punch device as claimed in claim 2, wherein: the surface of crank (71) rotates with the inner wall of installation fixing base (1) to be connected, the left side of No. two rack (73) and the inner wall sliding connection of installation fixing base (1), the surface of slider (74) and the inner wall sliding connection of installation fixing base (1), the surface of inserted bar (76) and the inner wall sliding connection of installation fixing base (1), the inner wall of slider (74) is provided with the inclined plane, can drive the sloping block through the inclined plane and remove.
4. A single operable multi-angle punch device as claimed in claim 1, wherein: the transmission mechanism (8) comprises a fixed rod (81), a shaft sleeve (82) is sleeved on the surface of the fixed rod (81), a lever (83) is welded on the surface of the shaft sleeve (82), a mounting groove (84) is formed in the surface of the supporting rod (4), a bolt (85) is inserted into the inner wall of the mounting groove (84), a limit column (86) is connected with the surface of the supporting rod (4) in a sliding mode, and knurling is arranged on the surface of the lever (83).
5. The single person operable multi-angle punch apparatus of claim 4, wherein: the surface of dead lever (81) and the surface welded fastening of support column (2), the inner wall of lever (83) is pegged graft fixedly with the surface of bolt (85), the both sides of lever (83) and the inner wall swing joint of mounting groove (84), the top welded fastening of bottom and connecting rod (9) of spacing post (86).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210105753.3A CN114378334B (en) | 2022-01-28 | 2022-01-28 | Single operable multi-angle perforating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210105753.3A CN114378334B (en) | 2022-01-28 | 2022-01-28 | Single operable multi-angle perforating device |
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| Publication Number | Publication Date |
|---|---|
| CN114378334A CN114378334A (en) | 2022-04-22 |
| CN114378334B true CN114378334B (en) | 2023-08-18 |
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| CN202210105753.3A Active CN114378334B (en) | 2022-01-28 | 2022-01-28 | Single operable multi-angle perforating device |
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| CN214769149U (en) * | 2021-03-15 | 2021-11-19 | 中建八局第二建设有限公司 | Single-operable bridge frame hanging rib punching tool |
| CN114378333A (en) * | 2021-12-30 | 2022-04-22 | 中建八局第二建设有限公司 | Single operable multi-angle perforating device |
Non-Patent Citations (1)
| Title |
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| 新型手持电钻机设计;束冬冬;刘伯玉;王家珂;王聪;赵垒;;机械工程与自动化(02);全文 * |
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| CN114378334A (en) | 2022-04-22 |
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