CN114229686A - Special lifting appliance for concrete prefabricated part and mounting method - Google Patents
Special lifting appliance for concrete prefabricated part and mounting method Download PDFInfo
- Publication number
- CN114229686A CN114229686A CN202111620410.2A CN202111620410A CN114229686A CN 114229686 A CN114229686 A CN 114229686A CN 202111620410 A CN202111620410 A CN 202111620410A CN 114229686 A CN114229686 A CN 114229686A
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- CN
- China
- Prior art keywords
- prefabricated part
- hanger
- lifting
- steel
- backing plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
- B66C1/666—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for connection to anchor inserts embedded in concrete structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/142—Means in or on the elements for connecting same to handling apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to a special lifting appliance for a concrete prefabricated part and an installation method thereof, wherein the special lifting appliance comprises a lifting appliance which is arranged on a bottom die of the prefabricated part in advance, 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 invention 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 invention relates to a special lifting appliance for a prefabricated part, in particular to a special lifting appliance for a concrete prefabricated part and an installation method of the lifting appliance.
Background
The concrete prefabricated part is for lifting by crane the convenience, often sets up rings, a large amount of steel can be wasted in the use of rings, instrument formula hoist has been used in the aspect of the hoist and mount of city light rail roof beam, but the instrument formula hoist that its used need reserve great space so that install the bottom backing plate and the bottom nut of hoist under prefabricated part's die block, it is higher just to have caused the prestressing force pedestal to leave ground, the antidumping power increase of pedestal is a lot of, and the prefabricated part die block needs the bolster, has also wasted a large amount of steel.
Disclosure of Invention
The invention aims to solve the technical problem of providing a special lifting appliance for a concrete prefabricated part and an installation method, wherein the special lifting appliance can save a large amount of lifting ring steel, does not need to reserve a bottom operation space, and is convenient to install and dismantle.
The technical scheme adopted by the invention 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 invention 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 prefabricated part lifting appliance and the installation method, a bottom base plate and a bottom nut of the lifting appliance can be installed without reserving a large space under the bottom die of the prefabricated part, a prestressed pedestal is not too high away from the ground, the anti-overturning force of the pedestal is small, a support pad is not needed for the bottom die of the prefabricated part, a large amount of steel is saved, a large amount of steel can be saved, a bottom operation space does not need to be reserved, and the lifting appliance is convenient to install and dismantle.
Drawings
The invention 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 plate 4 is arranged in the second cylindrical pot hole 1202, the outer diameter of the steel plate 4 is larger than that of the second cylindrical pot hole 1202 by 25-30mm, the outer diameter of the steel plate 4 is smaller than that of the first cylindrical pot hole 1201 by 35-45mm, 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 step-type pit hole 12 of a bottom die 7 of a prefabricated part 1 before the 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 11 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 base plate 4, the upper opening of the PVC pipe 10 is sealed by a rubber spiral conical plug 9
The invention 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 invention as defined in the appended claims.
Claims (9)
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.
9. A method for installing a special lifting device for a concrete prefabricated part according to claim 1, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111620410.2A CN114229686A (en) | 2021-12-28 | 2021-12-28 | Special lifting appliance for concrete prefabricated part and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111620410.2A CN114229686A (en) | 2021-12-28 | 2021-12-28 | Special lifting appliance for concrete prefabricated part and mounting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114229686A true CN114229686A (en) | 2022-03-25 |
Family
ID=80763909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111620410.2A Pending CN114229686A (en) | 2021-12-28 | 2021-12-28 | Special lifting appliance for concrete prefabricated part and mounting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114229686A (en) |
-
2021
- 2021-12-28 CN CN202111620410.2A patent/CN114229686A/en active Pending
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