CN216737209U - Special lifting appliance for concrete prefabricated part - Google Patents
Special lifting appliance for concrete prefabricated part Download PDFInfo
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- CN216737209U CN216737209U CN202123340040.5U CN202123340040U CN216737209U CN 216737209 U CN216737209 U CN 216737209U CN 202123340040 U CN202123340040 U CN 202123340040U CN 216737209 U CN216737209 U CN 216737209U
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- prefabricated part
- backing plate
- pot hole
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Abstract
The utility model relates to a special lifting appliance for a concrete prefabricated part, which comprises a lifting appliance which is arranged on a bottom die of the prefabricated part in advance, wherein the lifting appliance comprises a lifting rod, a lifting ring is fixedly arranged at the upper part of the lifting rod, a steel backing plate and a bottom nut are fixedly arranged at the lower part of the lifting rod, the steel backing plate and the bottom nut are arranged in a stepped pot hole, the stepped pot hole comprises a first cylindrical pot hole and a second cylindrical pot hole which are sequentially arranged from bottom to top, the diameter of the first cylindrical pot hole is smaller than that of the second cylindrical pot hole, the steel backing plate is arranged in the second cylindrical pot hole, the bottom nut is arranged in the first cylindrical pot hole, and a PVC pipe is sleeved outside the lifting rod. The utility model can save a large amount of steel products of the hoisting ring, does not need to reserve the bottom operating space, and is convenient to install and dismantle.
Description
Technical Field
The utility model relates to a special lifting appliance for a prefabricated part, in particular to a special lifting appliance for a concrete prefabricated part.
Background
The concrete prefabricated part is convenient for lifting, the lifting rings are usually arranged, a large amount of steel can be wasted due to the use of the lifting rings, a tool type lifting tool is used for lifting the urban light rail beam, but a large space needs to be reserved under a bottom die of the prefabricated part for the tool type lifting tool to be used for conveniently mounting a bottom base plate and a bottom nut of the lifting tool, so that a prestressed pedestal is higher in leaving from the ground, the anti-overturning force of the pedestal is increased a lot, the bottom die of the prefabricated part needs to be supported, and a large amount of steel is wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a special lifting appliance for a concrete prefabricated part, which can save a large amount of lifting ring steel, does not need to reserve bottom operation space and is convenient to install and dismantle.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a concrete prefabricated component's special lifting device, is including setting up the hoist on prefabricated component's die block in advance, the hoist includes the jib, the fixed rings that are provided with in jib upper portion, the fixed steel backing plate and the end nut that are provided with in jib lower part, steel backing plate and end nut set up in the step pothole, the step pothole includes first cylindrical pothole and the cylindrical pothole of second that from the bottom up set gradually, first cylindrical pothole diameter is less than the cylindrical pothole diameter of second, the steel backing plate sets up in the cylindrical pothole of second, the end nut sets up in first cylindrical pothole, the outside cover of jib is equipped with the PVC pipe.
According to the scheme, the outer diameter of the steel base plate is 25-30mm larger than the diameter of the second cylindrical pot hole, the outer diameter of the steel base plate is 35-45mm smaller than the diameter of the first cylindrical pot hole, and the inner diameter of the steel base plate is 5-10mm larger than the outer diameter of the suspender.
According to the scheme, the thickness of the steel backing plate is the same as the height of the second cylindrical pit hole.
According to the scheme, a rubber semi-ring plate is arranged in a gap between the steel base plate and the step-type pot hole.
According to the scheme, the bottom of the suspender is provided with the limiting slurry stopping rubber ring, the inner diameter of the limiting slurry stopping rubber ring is the same as the diameter of the suspender, and the outer diameter of the limiting slurry stopping rubber ring is the same as the inner diameter of the PVC pipe.
According to the scheme, the upper end of the PVC pipe is provided with the rubber spiral conical plug.
According to the scheme, the hanger rod is made of finish-rolled threaded steel, the hanging ring is made of round steel in a bending mode, and the connection position of the hanging ring is connected with the hanger rod through a nut.
According to the scheme, the lifting appliance is installed in the step-type pit hole before the precast concrete component is precast.
The utility model also provides an installation method of the special lifting appliance for the concrete prefabricated part, which comprises the following steps:
s1, after the lifting appliance is processed and integrally installed, the lifting ring is detached and then installed in a stepped pot hole of a bottom die of a concrete prefabricated part, and the center of the lifting rod is matched with the center of the stepped pot hole;
s2, installing the limiting grout stopping rubber ring between the bottom of the suspension rod and the steel backing plate, sleeving the suspension rod with a fixed-length PVC pipe on the steel backing plate, and screwing the upper opening of the PVC pipe by using a rubber spiral conical plug;
s3, binding steel bars of the prefabricated parts, erecting a template, fixing the hanger rods on the template of the prefabricated parts by using section steel, and pouring concrete;
s4, after the prefabricated part is maintained to strength, installing a hanging ring of the hanger at the upper end of a hanging rod, hanging the hanger by using a special hanging bracket, hanging the prefabricated part away from a prefabricated pedestal under the cooperation of a crane and placing the prefabricated part in a stockpiling area, removing a bottom nut and a steel base plate at the bottom of the hanger, and hanging the hanging rod away from the prefabricated part;
s5, when the prefabricated part is installed, the hanger is installed in the lifting hole of the prefabricated part again, the bottom nut is tied by the nylon rope, the other end of the nylon rope is tied on the prefabricated part, after the prefabricated part is installed in place, the nylon rope is tied on the upper portion of the hanger rod, the hanger ring of the hanger is detached, the rest hanger falls under the action of self weight, the nylon rope on the upper portion is pulled by manpower to slowly fall, the nylon rope on the upper portion is released after the nylon rope on the lower portion is completely stressed, and the hanger is pulled up from below to be used again.
The special lifting appliance for the concrete prefabricated part and the installation method of the lifting appliance have the following beneficial effects:
according to the special precast member lifting appliance for concrete, a bottom base plate and a bottom nut of the lifting appliance can be installed without reserving a large space under a bottom die of a precast member, a prestressed pedestal is not too high to leave the ground, the anti-overturning force of the pedestal is small, a support pad is not needed on the bottom die of the precast member, a large amount of steel is saved, a large amount of steel for lifting rings is saved, a bottom operation space is not required to be reserved, and the lifting appliance is convenient to install and dismantle.
Drawings
The utility model will be further illustrated with reference to the accompanying drawings and examples, in which:
FIG. 1 is a plan view of a lifting device and lifting holes for a concrete precast element;
FIG. 2 is a schematic plan view of the position of the bottom die and the spreader of the prefabricated slab;
FIG. 3 is a schematic structural view of a special spreader for concrete prefabricated parts;
FIG. 4 is a schematic view showing the hanging installation of a special hanger for concrete prefabricated parts;
fig. 5 is a schematic view of the hanger bar engaging the frame member and the base mold.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1-5, the special lifting device for a concrete prefabricated part comprises a lifting device which is pre-arranged on a bottom die 7 of a prefabricated part 1, wherein the lifting device comprises a lifting rod 2, a lifting ring 3 is fixedly arranged at the upper part of the lifting rod 2, a steel backing plate 4 and a bottom nut 5 are fixedly arranged at the lower part of the lifting rod 2, and the steel backing plate 4 and the bottom nut 5 are arranged in a stepped pit hole 12. The step-type pothole 12 for installing the lifting appliance is composed of two cylindrical potholes with small lower parts and large upper parts. The stepped pot hole 12 comprises a first cylindrical pot hole 1201 and a second cylindrical pot hole 1202 which are sequentially arranged from bottom to top, the diameter of the first cylindrical pot hole 1201 is smaller than that of the second cylindrical pot hole 1202, the steel shim plate 4 is arranged in the second cylindrical pot hole 1202, the outer diameter of the steel shim plate 4 is 25-30mm larger than that of the second cylindrical pot hole 1202, the outer diameter of the steel shim plate 4 is 35-45mm smaller than that of the first cylindrical pot hole 1201, the bottom nut 5 is arranged in the first cylindrical pot hole 1201, and the PVC pipe 10 is sleeved outside the suspender 2. The upper end of the PVC pipe 10 is provided with a rubber spiral conical plug 9. The inner diameter of the steel backing plate 4 is 5-10mm larger than the outer diameter of the suspender 2, the steel backing plate 4 is horizontally placed at the center of the inner step type pot hole 12, and the steel backing plate 4 and the step type pot hole 12 are filled with rubber semi-ring plates 8. The thickness of the steel shim plate 4 is the same as the height of the second cylindrical pit 1202. And a rubber semi-ring plate 8 is arranged in a gap between the steel backing plate 4 and the step-type pot hole 12.
The bottom of the suspender 2 is provided with a limiting slurry stopping rubber ring 11, the inner diameter of the limiting slurry stopping rubber ring 11 is the same as the diameter of the suspender 2, and the outer diameter of the limiting slurry stopping rubber ring 11 is the same as the inner diameter of the PVC pipe 10. The hanger rod 2 is made of finish-rolled threaded steel, the hanging ring 3 is made of round steel in a bending mode, and the joint of the hanging ring 3 is connected with the hanger rod 2 through a nut. The lifting appliance is arranged in the step-type pit 12 before the concrete prefabricated part 1 is prefabricated. The hanging ring 3 is formed by welding a ring made of round steel through bending on a nut, the steel backing plate 4 is formed by processing a thick steel plate, and the inner hole of the steel backing plate is 5-10mm larger than the diameter of the hanging rod 2.
The lifting appliance is installed in a stepped pit hole 12 of a bottom die 7 of a prefabricated part 1 before the prefabricated concrete prefabricated part 1 is prefabricated, the bottom of a suspender 2 is sleeved with a limiting grout stopping rubber ring 11, the inner diameter of the limiting grout stopping rubber ring 11 is the same as the diameter of the suspender 2, the outer diameter of the limiting grout stopping rubber ring is the same as the inner diameter of a PVC pipe 10, the PVC pipe 10 is sleeved outside the suspender 2, the lower part of the PVC pipe is placed on a steel backing plate 4, and the upper opening of the PVC pipe 10 is sealed by a rubber spiral conical plug 9.
The utility model also provides an installation method of the special lifting appliance for the concrete prefabricated part, which comprises the following steps:
s1, after the lifting appliance is processed and integrally installed, the lifting ring 3 is removed and then installed in the stepped pot hole 12 of the bottom die 7 of the concrete prefabricated part 1, and the center of the suspender 2 is matched with the center of the stepped pot hole 12;
s2, installing a limiting grout stopping rubber ring 11 between the bottom of the suspender 2 and the steel backing plate 4, sleeving the suspender 2 with a PVC pipe 10 with a fixed length on the steel backing plate 4, and screwing an upper opening of the PVC pipe 10 by using a rubber spiral conical plug 9;
s3, binding steel bars of the prefabricated part 1 and erecting a template, fixing the suspender 2 on the template of the prefabricated part 1 by using section steel, and pouring concrete;
s4, after the prefabricated part 1 is maintained to strength, installing a hanging ring 3 of a hanging tool at the upper end of a hanging rod 2, hanging the hanging tool by using a special hanging frame, hanging the prefabricated part 1 away from a prefabricated pedestal under the cooperation of a crane and placing the prefabricated part in a stockpiling area, removing a bottom nut 5 and a steel base plate 4 at the bottom of the hanging tool, and hanging the hanging rod 2 away from the prefabricated part 1;
s5, when the prefabricated part 1 is installed, the lifting appliance is installed in the lifting hole 6 of the prefabricated part 1 again, the bottom nut 5 is tied by a nylon rope, the other end of the nylon rope is tied on the prefabricated part 1, after the prefabricated part is installed in place, the nylon rope is tied on the upper portion of the lifting rod 2, the lifting ring 3 of the lifting appliance is detached, the rest lifting appliance falls under the action of self weight, at the moment, the nylon rope on the upper portion is pulled by manpower to slowly fall, after the nylon rope on the lower portion is completely stressed, the nylon rope on the upper portion is released, and the lifting appliance is pulled up from the lower portion to be used again.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (8)
1. The utility model provides a concrete prefabricated component's special lifting device, a serial communication port, including the hoist of setting up in advance on prefabricated component's die block, the hoist includes the jib, the fixed rings that are provided with in jib upper portion, the fixed backing plate and the end nut that are provided with in jib lower part, backing plate and end nut set up in the step pothole, the step pothole includes first cylindrical pothole and the cylindrical pothole of second that from the bottom up set gradually, first cylindrical pothole diameter is less than the cylindrical pothole diameter of second, the backing plate sets up in the cylindrical pothole of second, the end nut sets up in first cylindrical pothole, the outside cover of jib is equipped with the PVC pipe.
2. The special lifting appliance for the concrete prefabricated part according to claim 1, wherein the outer diameter of the steel backing plate is 25-30mm larger than the diameter of the second cylindrical pot hole, the outer diameter of the steel backing plate is 35-45mm smaller than the diameter of the first cylindrical pot hole, and the inner diameter of the steel backing plate is 5-10mm larger than the outer diameter of the hanger rod.
3. The special spreader for concrete precast elements according to claim 1, wherein the thickness of the steel pad plate is the same as the height of the second cylindrical pot hole.
4. The special lifting appliance for the concrete prefabricated part according to claim 1, wherein a rubber semi-ring plate is arranged in a gap between the steel backing plate and the stepped pot hole.
5. The special lifting appliance for the concrete prefabricated part according to claim 1, wherein a limiting and grout-stopping rubber ring is arranged at the bottom of the hanging rod, the inner diameter of the limiting and grout-stopping rubber ring is the same as the diameter of the hanging rod, and the outer diameter of the limiting and grout-stopping rubber ring is the same as the inner diameter of the PVC pipe.
6. The special lifting appliance for the concrete prefabricated part according to claim 4, wherein the upper end of the PVC pipe is provided with a rubber spiral conical plug.
7. The special lifting appliance for the concrete prefabricated part according to claim 1, wherein the lifting rod is made of finish-rolled deformed steel bars, the lifting rings are made of round steel in a bending mode, and the joints of the lifting rings are connected with the lifting rod through nuts.
8. The special lifting appliance for the concrete prefabricated part according to claim 1, wherein the lifting appliance is installed in the stepped pot hole before the concrete prefabricated part is prefabricated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123340040.5U CN216737209U (en) | 2021-12-28 | 2021-12-28 | Special lifting appliance for concrete prefabricated part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123340040.5U CN216737209U (en) | 2021-12-28 | 2021-12-28 | Special lifting appliance for concrete prefabricated part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216737209U true CN216737209U (en) | 2022-06-14 |
Family
ID=81939103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123340040.5U Active CN216737209U (en) | 2021-12-28 | 2021-12-28 | Special lifting appliance for concrete prefabricated part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216737209U (en) |
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2021
- 2021-12-28 CN CN202123340040.5U patent/CN216737209U/en active Active
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