CN219685006U - Internal circular wire cutting device for cutting reinforcing steel bars in concrete holes - Google Patents
Internal circular wire cutting device for cutting reinforcing steel bars in concrete holes Download PDFInfo
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- CN219685006U CN219685006U CN202320957952.7U CN202320957952U CN219685006U CN 219685006 U CN219685006 U CN 219685006U CN 202320957952 U CN202320957952 U CN 202320957952U CN 219685006 U CN219685006 U CN 219685006U
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- grinding wheel
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- inner circle
- cutting grinding
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- 238000005520 cutting process Methods 0.000 title claims abstract description 137
- 229910001294 Reinforcing steel Inorganic materials 0.000 title abstract description 26
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 230000006378 damage Effects 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract description 5
- 238000010621 bar drawing Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
- 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
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- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model discloses an inner circle linear cutting device for cutting reinforcing steel bars in concrete holes, which comprises a connecting device and an inner circle cutting grinding wheel, wherein the connecting device comprises an inner thread connecting piece, an inner circle cutting grinding wheel fixing piece and a plurality of connecting rods, protective nets are arranged on the outer peripheries of the connecting rods, the protective nets are connected between the inner thread connecting piece and the inner circle cutting grinding wheel fixing piece, the inner thread connecting piece is arranged at the end part of a straight mill extension rod in a threaded manner, and the inner circle cutting grinding wheel is detachably connected with the inner circle cutting grinding wheel fixing piece. The utility model has reasonable structural design, and the connecting device is used for arranging the inner circle cutting grinding wheel on the extension bar of the straight grinder, so that the inner circle cutting grinding wheel is driven by the straight grinder to cut the reinforcing steel bar on the surface of the concrete in the hole, the reinforcing steel bar on the surface of the concrete can be completely removed, and the problems that the existing concrete defect eliminating treatment has difficulty in cutting exposed reinforcing steel bar heads, incomplete cutting, large damage to concrete body caused by chiseling and the like are solved.
Description
Technical Field
The utility model belongs to the technical field of cutting of reinforcing steel bars in holes, and particularly relates to an inner circular wire cutting device for cutting reinforcing steel bars in concrete holes.
Background
The Xinjiang Fukang pumped storage power station is the first pumped storage power station in Xinjiang area, and the final assembly machine is 1200MW. In the concrete construction of the power station, a large number of steel templates and high and large steel templates are adopted, and a large number of embedded steel bar pull rods are adopted when the templates are fixed. After the templates are removed, the reinforcing steel bar pull heads are exposed on the surface of the concrete, so that the attractiveness of the concrete is affected, and the reinforcing steel bar pull heads become weak points for corrosion of the reinforcing steel bars. Therefore, it is necessary to perform a defect eliminating treatment, that is, to cut the reinforcing bar head exposed on the surface of the concrete. At present, a mode of cutting steel bars after electric welding cutting or chiseling concrete to a certain depth is generally adopted, and the electric welding cutting can generate black scars on the surface of the concrete and can not completely remove the steel bars on the surface; the chiseling and cutting not only needs to consume a great deal of manpower, but also has larger damage to the undisturbed concrete. Therefore, it is necessary to provide a cutting device capable of solving the problems of difficult cutting, incomplete cutting, large damage to concrete body caused by chiseling and the like in the existing concrete defect eliminating treatment.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, and provides an inner circle linear cutting device for cutting reinforcing steel bars in concrete holes, which is reasonable in structural design, and an inner circle cutting grinding wheel is arranged on a straight mill extension bar through a connecting device, so that the inner circle cutting grinding wheel is driven by the straight mill to cut reinforcing steel bar drawing heads on the concrete surfaces in the holes, reinforcing steel bars on the concrete surfaces can be completely removed, and the problems that the existing concrete defect removing treatment is difficult in cutting exposed lacing wire heads, the cutting is incomplete, the concrete body type damage is large due to chiseling and the like are solved.
In order to solve the technical problems, the utility model adopts the following technical scheme: an interior circular wire cutting device for cutting reinforcing bar in concrete hole, its characterized in that: the internal cutting grinding wheel fixing device comprises a connecting device arranged on a straight grinding machine extension rod and an internal cutting grinding wheel arranged at one end of the connecting device, wherein the connecting device comprises an internal thread connecting piece, an internal cutting grinding wheel fixing piece and a plurality of connecting rods used for connecting the internal thread connecting piece with the internal cutting grinding wheel fixing piece together, a protection net is arranged on the outer sides of the connecting rods in a surrounding mode, the protection net is of a round table-shaped hollow grid structure connected between the internal thread connecting piece and the internal cutting grinding wheel fixing piece, the internal thread connecting piece is connected to the small end of the protection net, and the internal cutting grinding wheel fixing piece is connected to the large end of the protection net;
the internal thread connecting piece is installed at the end part of the extension rod of the straight mill in a threaded manner, the internal cutting grinding wheel is detachably connected with the internal cutting grinding wheel fixing piece through a plurality of connecting pieces, and the internal thread connecting piece, the internal cutting grinding wheel fixing piece and the internal cutting grinding wheel are all coaxially arranged.
The inner circular wire cutting device for cutting the reinforcing steel bars in the concrete holes is characterized in that: the inner circle cutting grinding wheel fixing piece comprises two annular gaskets, and the inner circle cutting grinding wheel is installed between the two annular gaskets through a plurality of connecting pieces.
The inner circular wire cutting device for cutting the reinforcing steel bars in the concrete holes is characterized in that: and a plurality of connecting piece perforations for installing the connecting pieces are formed in the annular gasket and the inner circle cutting grinding wheel.
The inner circular wire cutting device for cutting the reinforcing steel bars in the concrete holes is characterized in that: one end of the connecting rod is welded on the internal thread connecting piece, and the other end of the connecting rod is welded on the outer ring of the annular gasket.
The inner circular wire cutting device for cutting the reinforcing steel bars in the concrete holes is characterized in that: the internal thread connecting piece is an external hexagonal nut.
The inner circular wire cutting device for cutting the reinforcing steel bars in the concrete holes is characterized in that: the small end of the protective net is welded on the outer ring of the internal thread connecting piece, and the large end of the protective net is connected on the outer ring of the internal cutting grinding wheel fixing piece.
The inner circular wire cutting device for cutting the reinforcing steel bars in the concrete holes is characterized in that: the inner diameter of the inner circle cutting grinding wheel is not smaller than the diameter of the steel bar to be cut, the inner diameter of the inner circle cutting grinding wheel fixing piece is larger than the inner diameter of the inner circle cutting grinding wheel, and the outer diameter of the inner circle cutting grinding wheel fixing piece is not smaller than the outer diameter of the inner circle cutting grinding wheel.
Compared with the prior art, the utility model has the following advantages:
1. according to the utility model, the connecting device is used for arranging the inner circle cutting grinding wheel on the extension bar of the straight grinder, when the steel bar drawing head on the concrete surface is cut, the hand-held water drill can be used for drilling a hole by taking the steel bar drawing head as the circle center, then the inner circle cutting grinding wheel is driven by the straight grinder to cut the hole on the steel bar drawing head on the concrete surface, so that the steel bar on the concrete surface can be completely removed, meanwhile, the damage of original concrete can be effectively reduced, the construction efficiency can be effectively improved, and the manpower consumption is reduced.
2. According to the utility model, the protection net is arranged on the outer sides of the connecting rods, so that the protection net can be used as an observation window, an operator can observe the cutting condition of the steel bars in the holes conveniently, and meanwhile, the damage to the operator due to the damage of the grinding wheel or the ejection of steel bar scraps in the steel bar cutting process can be avoided.
In summary, the utility model has reasonable structural design, and the connecting device is used for arranging the inner circle cutting grinding wheel on the extension bar of the straight grinder, so that the inner circle cutting grinding wheel is driven by the straight grinder to cut the reinforcing steel bar pull rod head on the surface of the concrete in a hole, the reinforcing steel bar on the surface of the concrete can be completely removed, and the problems that the exposed reinforcing steel bar head is difficult to cut, the cutting is incomplete, the concrete body is damaged greatly due to chiseling and the like in the existing concrete defect eliminating treatment are solved.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model with the protective net removed.
FIG. 2 is a schematic view of the connection structure of the internal thread connector, the protection net, the connecting rod and the annular gasket of the present utility model.
Fig. 3 is a schematic structural view of the inner cutting wheel according to the present utility model.
Reference numerals illustrate:
1-a straight mill extension bar; 2-an inner circle cutting grinding wheel; 3-an internally threaded connection;
4-connecting rods; 5-an annular gasket; 6-perforating the connecting piece;
7-a protective net.
Detailed Description
As shown in fig. 1 to 3, the utility model comprises a connecting device arranged on a straight mill extension bar 1 and an inner circle cutting wheel 2 arranged at one end of the connecting device, wherein the connecting device comprises an internal thread connecting piece 3, an inner circle cutting wheel fixing piece and a plurality of connecting rods 4 for connecting the internal thread connecting piece 3 and the inner circle cutting wheel fixing piece together, the outer sides of the connecting rods 4 are provided with protective nets 7, the protective nets 7 are round table-shaped hollow net frame structures connected between the internal thread connecting piece 3 and the inner circle cutting wheel fixing piece, the internal thread connecting piece 3 is connected at the small end of the protective net 7, and the inner circle cutting wheel fixing piece is connected at the large end of the protective net 7;
the internal thread connecting piece 3 is arranged at the end part of the straight mill extension bar 1 in a threaded manner, the internal cutting grinding wheel 2 is detachably connected with the internal cutting grinding wheel fixing piece through a plurality of connecting pieces, and the internal thread connecting piece 3, the internal cutting grinding wheel fixing piece and the internal cutting grinding wheel 2 are all coaxially arranged.
When in actual use, the inner circular cutting grinding wheel 2 is arranged on the straight mill extension bar 1 through the connecting device, when the steel bar drawing rod head on the concrete surface is cut, the hand-held water drill can be used for drilling a hole by taking the steel bar drawing rod head as the center of a circle, then the straight mill is used for driving the inner circular cutting grinding wheel 2 to cut the steel bar drawing rod head on the concrete surface into the hole, the steel bar on the concrete surface can be completely removed, meanwhile, the damage of undisturbed concrete can be effectively reduced, the construction efficiency can be effectively improved, and the manpower consumption can be reduced.
It should be noted that, through a plurality of the outside of connecting rod 4 is enclosed and is equipped with protection network 7 for protection network 7 not only can be as observation window, and the operating personnel of being convenient for observe downthehole reinforcing bar cutting condition can also avoid simultaneously in the reinforcing bar cutting process because of grinding wheel damage or reinforcing bar piece blowout injury operating personnel.
In the concrete implementation, the device is convenient to install and detach by arranging the internal thread connecting piece 3.
In specific implementation, the straight mill is a power source of the device, and the rotation of the straight mill extension bar 1 drives the inner circle cutting grinding wheel 2 fixed by the connecting device arranged and fixed at the end head of the straight mill extension bar 1 to rotate so as to cut the reinforcing steel bars. The use voltage of the direct grinding machine is 220V, the rotating speed of the direct grinding machine is required to be more than 20000r/min, and the common 700W direct grinding machine in the market can meet the requirements. The end of the extension bar 1 of the straight grinder is provided with a standard external thread with phi of 16mm so as to facilitate the installation of the internal thread connecting piece 3.
It should be noted that, the connecting device is used as a bridge for connecting the straight grinder and the inner circle cutting grinding wheel 2, and rotates along with the extension bar 1 of the straight grinder, and drives the inner circle cutting grinding wheel 2 to rotate along with the extension bar, so that the inner circle cutting grinding wheel 2 is utilized to rotationally cut the reinforcing steel bars.
During concrete implementation, the internal thread connecting piece 3, the protective net 7 and the internal cutting grinding wheel piece fixing piece form a structure with a truncated cone shape outside, so that operators can observe the cutting condition of the reinforcing steel bars inside the protective net conveniently, and the operators can observe the internal condition from the small end to the large end conveniently.
In this embodiment, the inner cut-off wheel securing member includes two annular shims 5, and the inner cut-off wheel 2 is mounted between the two annular shims 5 via a plurality of connecting members.
In actual use, the thickness of the annular gasket 5 is 5mm, and the thickness of the inner circle cutting grinding wheel 2 is 1.6mm.
In this embodiment, as shown in fig. 2, a plurality of connecting piece through holes 6 for installing the connecting pieces are provided on each of the annular shim 5 and the inner cutting wheel 2.
In actual use, the connecting piece adopts phi 3mm standard bolts, and three connecting piece perforations 6 are uniformly formed in each annular gasket 5 and the inner circle cutting grinding wheel 2 along the circumferential direction of the annular gasket.
In this embodiment, one end of the connecting rod 4 is welded to the internal threaded connecting member 3, and the other end of the connecting rod 4 is welded to the outer ring of an annular gasket 5.
When in actual use, the number of the connecting rods 4 is five, one ends of the five connecting rods 4 are welded on the internal threaded connecting piece 3 at equal intervals, and the other ends of the five connecting rods 4 are welded on the outer ring of the annular gasket 5 at equal intervals.
In this embodiment, the female screw connector 3 is an outer hexagonal nut.
In actual use, the female connector 3 is a phi 16mm standard nut.
In this embodiment, the small end of the protection net 7 is welded to the outer ring of the internal thread connecting member 3, and the large end of the protection net 7 is connected to the outer ring of the internal cutting grinding wheel fixing member.
In actual use, the small end of the protective net 7 is sleeved outside one end of the internal thread connecting piece 3, and the large end of the protective net 7 is sleeved outside one annular gasket 5 close to the connecting rod 4.
In this embodiment, the inner diameter of the inner diameter cutting wheel 2 is not smaller than the diameter of the steel bar to be cut, the inner diameter of the inner diameter cutting wheel fixing member is larger than the inner diameter of the inner diameter cutting wheel 2, and the outer diameter of the inner diameter cutting wheel fixing member is not smaller than the outer diameter of the inner diameter cutting wheel 2.
When the device is actually used, before cutting the steel bars in the concrete holes, a hand-held water drill is adopted to drill a round hole with the depth of 40mm by taking the steel bar head of the pull rod as the center of a circle, the concrete in the hole is chiseled, the device is arranged on a straight grinding machine, the straight grinding machine is held by hand, so that the steel bar pull rod head passes through the inner circle cutting grinding wheel 2 of the device, the straight grinding machine is started, and the steel bar pull rod head is cut at a position 15mm away from the bottom of the hole; and then, cement mortar is adopted to backfill the holes, so that the backfilling is required to be compact and smooth. The device has the advantages that the damage to the original concrete of the concrete is small, the cutting depth of the steel bar drawing head can be controlled, the treatment process is safe and convenient, and the treated concrete has smooth and dense surface, so that the whole appearance of the concrete is ensured.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims (7)
1. An interior circular wire cutting device for cutting reinforcing bar in concrete hole, its characterized in that: the internal cutting grinding wheel fixing device comprises a connecting device arranged on a straight grinding machine extension bar (1) and an internal cutting grinding wheel (2) arranged at one end of the connecting device, wherein the connecting device comprises an internal thread connecting piece (3), an internal cutting grinding wheel fixing piece and a plurality of connecting rods (4) for connecting the internal thread connecting piece (3) with the internal cutting grinding wheel fixing piece together, a protective net (7) is arranged on the outer periphery of the plurality of connecting rods (4), the protective net (7) is a round table-shaped hollow net frame structure connected between the internal thread connecting piece (3) and the internal cutting grinding wheel fixing piece, the internal thread connecting piece (3) is connected to the small end of the protective net (7), and the internal cutting grinding wheel fixing piece is connected to the large end of the protective net (7);
the internal thread connecting piece (3) is arranged at the end part of the straight mill extension bar (1) in a threaded manner, the internal cutting grinding wheel (2) is detachably connected with the internal cutting grinding wheel fixing piece through a plurality of connecting pieces, and the internal thread connecting piece (3), the internal cutting grinding wheel fixing piece and the internal cutting grinding wheel (2) are all coaxially arranged.
2. An internal circular wire cutting apparatus for cutting reinforcing bars in concrete holes as set forth in claim 1, wherein: the inner circle cutting grinding wheel fixing piece comprises two annular gaskets (5), and the inner circle cutting grinding wheel (2) is installed between the two annular gaskets (5) through a plurality of connecting pieces.
3. An internal circular wire cutting apparatus for cutting reinforcing bars in concrete holes as set forth in claim 2, wherein: the annular gasket (5) and the inner circle cutting grinding wheel (2) are respectively provided with a plurality of connecting piece perforations (6) for installing the connecting pieces.
4. An internal circular wire cutting apparatus for cutting reinforcing bars in concrete holes as set forth in claim 2, wherein: one end of the connecting rod (4) is welded on the internal thread connecting piece (3), and the other end of the connecting rod (4) is welded on the outer ring of an annular gasket (5).
5. An internal circular wire cutting apparatus for cutting reinforcing bars in concrete holes as set forth in claim 1, wherein: the internal thread connecting piece (3) is an external hexagonal nut.
6. An internal circular wire cutting apparatus for cutting reinforcing bars in concrete holes as set forth in claim 1, wherein: the small end of the protective net (7) is welded on the outer ring of the internal thread connecting piece (3), and the large end of the protective net (7) is connected on the outer ring of the internal cutting grinding wheel fixing piece.
7. An internal circular wire cutting apparatus for cutting reinforcing bars in concrete holes as set forth in claim 1, wherein: the inner diameter of the inner circle cutting grinding wheel (2) is not smaller than the diameter of the steel bar to be cut, the inner diameter of the inner circle cutting grinding wheel fixing piece is larger than the inner diameter of the inner circle cutting grinding wheel (2), and the outer diameter of the inner circle cutting grinding wheel fixing piece is not smaller than the outer diameter of the inner circle cutting grinding wheel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320957952.7U CN219685006U (en) | 2023-04-25 | 2023-04-25 | Internal circular wire cutting device for cutting reinforcing steel bars in concrete holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320957952.7U CN219685006U (en) | 2023-04-25 | 2023-04-25 | Internal circular wire cutting device for cutting reinforcing steel bars in concrete holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219685006U true CN219685006U (en) | 2023-09-15 |
Family
ID=87944081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320957952.7U Active CN219685006U (en) | 2023-04-25 | 2023-04-25 | Internal circular wire cutting device for cutting reinforcing steel bars in concrete holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219685006U (en) |
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2023
- 2023-04-25 CN CN202320957952.7U patent/CN219685006U/en active Active
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