CN111576727A - PC component that contains anchor shape and hangs nail - Google Patents
PC component that contains anchor shape and hangs nail Download PDFInfo
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- CN111576727A CN111576727A CN202010476828.XA CN202010476828A CN111576727A CN 111576727 A CN111576727 A CN 111576727A CN 202010476828 A CN202010476828 A CN 202010476828A CN 111576727 A CN111576727 A CN 111576727A
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- anchor
- nail
- hanging nail
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- prefabricated wall
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a PC component containing an anchor-shaped hanging nail, and belongs to the technical field of PC components. The prefabricated wall comprises a prefabricated wall body, wherein horizontal steel bars, vertical steel bars and anchor type hanging nails are arranged in the prefabricated wall body, a plurality of rows of the horizontal steel bars are arranged along the height direction of the prefabricated wall body, and two rows of the horizontal steel bars are arranged along the width direction of the prefabricated wall body; the vertical steel bars and the horizontal steel bars are in cross connection; the anchor type hangs the nail and is equipped with two, is located the inside top of prefabricated wall, and between two rows of horizontal reinforcing bar of prefabricated wall width direction, the lower extreme that the anchor type hung the nail is equipped with the drag hook, and this drag hook sets up along the width direction of prefabricated wall, and the drag hook both ends link to each other with horizontal reinforcing bar respectively. When the PC component is hoisted, the acting force applied to the anchor type hoisting nail is distributed to the horizontal steel bars and the vertical steel bars inside along the anchor type hoisting nail, so that the PC component is uniformly stressed when being hoisted, the pre-embedded part of the anchor type hoisting nail is effectively prevented from cracking and being damaged, and the PC component is ensured to be hoisted safely and reliably.
Description
Technical Field
The invention relates to the technical field of PC components, in particular to a PC component containing an anchor-shaped hanging nail.
Background
The PC member is also called a concrete prefabricated member and is widely applied to the fields of buildings, traffic, water conservancy and the like. Because the PC member is widely used in the building industry, in the process of actual construction, the PC member needs to be lifted and installed, and in order to facilitate lifting of the PC member, the lifting is mostly realized by adopting a mode of pre-burying lifting nails on prefabricated members in the prior art, but the traditional lifting nails are easy to deviate during installation, and the strength of concrete is insufficient, and the like, under the condition of long time, concrete around the lifting nails is easy to crack and damage, and even the lifting nails fall off, so that safety accidents are caused. Therefore, further improvements are needed.
Through retrieval, the Chinese patent number: ZL201921064310.4, date of authorized bulletin: the invention is invented and created in 3 and 27 days in 2020: the utility model provides a quick connect's hoist and mount is buried piece, this application includes the mould that is used for pouring the PC component, be equipped with the mounting on the mould, the mounting is connected with the sleeve pipe, the sleeve pipe bottom stretches into in the mould, works as when pouring the PC component in the mould, the sleeve pipe bottom stretches into in the PC component, the sleeve pipe stretches into the inside fixation nut that is equipped with of one end in the PC component.
Above-mentioned application is through connecting sleeve pipe in advance on the mould to place fixation nut in the cover intraductal, when pouring the PC component in the mould, the sleeve pipe bottom stretches into in the PC component, makes behind the PC component shaping, the sleeve pipe can be pre-buried to the PC component on, when needs lifting device hoist and mount removal PC component, lifting device only need through being connected with fixation nut, alright hoist and mount the removal with the PC component. However, when a PC member with a large hoisting mass is hoisted, the pre-buried part of the PC member may be cracked and damaged, which causes a safety accident.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to solve the problem that the embedded part is easy to crack and damage when a PC component is hoisted in the prior art, and provides the PC component containing the anchor-shaped hoisting nail; according to the invention, the horizontal steel bars and the vertical steel bars are arranged in the PC component, the positions of the horizontal steel bars and the vertical steel bars are distributed, the anchor-type lifting nails are arranged at the top end inside the prefabricated wall and are connected with the horizontal steel bars through the draw hooks, and in the process of lifting the PC component, the acting force applied to the anchor-type lifting nails is distributed to the internal horizontal steel bars and the internal vertical steel bars along the anchor-type lifting nails, so that uniform stress is ensured when the PC component is lifted, cracking and damage at the embedded positions of the anchor-type lifting nails are effectively avoided, and the safety and reliability of lifting the PC component are ensured.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the PC component comprises a prefabricated wall, wherein horizontal steel bars, vertical steel bars and anchor type hanging nails are arranged in the prefabricated wall, a plurality of rows of the horizontal steel bars are arranged in the height direction of the prefabricated wall, and two rows of the horizontal steel bars are arranged in the width direction of the prefabricated wall; the vertical steel bars and the horizontal steel bars are in cross connection; the anchor type hangs the nail and is equipped with two, is located the inside top of prefabricated wall, and between two rows of horizontal reinforcing bar of prefabricated wall width direction, the lower extreme that the anchor type hung the nail is equipped with the drag hook, the drag hook sets up along the width direction of prefabricated wall, and the drag hook both ends link to each other with a horizontal reinforcing bar respectively.
As a further improvement of the invention, the anchor-type hanging nail comprises a hanger clamping piece, a hanging nail main rod piece, a hanging nail anchoring piece and a hanging nail anchor-shaped anchoring piece, wherein the hanger clamping piece is arranged at the upper end of the hanging nail main rod piece, and the diameter of the hanger clamping piece is larger than that of the hanging nail main rod piece; the hanging nail anchoring piece and the hanging nail anchor-shaped anchoring piece are arranged at the lower end of the hanging nail main rod piece, the hanging nail anchor-shaped anchoring piece is arc-shaped, the hanging nail anchor-shaped anchoring piece is parallel to the horizontal steel bar, and the draw hook is positioned on the upper end face of the hanging nail anchor-shaped anchoring piece.
As a further improvement of the invention, two draw hooks are arranged and are respectively positioned at two sides of the main rod piece of the hanging nail.
As a further improvement of the invention, the anchor-shaped anchoring piece of the lifting nail is positioned at one side of the main rod piece of the lifting nail, and the inner arc length of the anchor-shaped anchoring piece of the lifting nail is L125mm in length and L in outer arc length2Is 45mm and the height of the anchor-shaped anchoring piece of the hanging nailThe degree H was 35 mm.
As a further improvement of the invention, the anchor-shaped anchoring piece of the lifting nail has the wall thickness L3Is 12 mm.
As a further improvement of the invention, the overall height of the hanger clamping piece, the hanging nail main rod piece and the hanging nail anchoring piece is 200 mm.
As a further improvement of the invention, the joint between the hanger clamping piece and the hanging nail main rod piece is processed by arc-shaped and ribbing; the connection between the hanging nail main rod piece and the hanging nail anchoring piece is also processed in an arc shape and a ribbed shape.
As a further improvement of the invention, the prefabricated wall is provided with a hoisting groove, the anchor type hoisting nail is positioned in the center of the hoisting groove, and the upper end surface of the anchor type hoisting nail is flush with the upper end surface of the prefabricated wall.
As a further improvement of the invention, the hoisting groove is a circular groove.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) according to the PC component containing the anchor-shaped hanging nail, the horizontal steel bars and the vertical steel bars are arranged in the PC component, the positions of the horizontal steel bars and the vertical steel bars are distributed, meanwhile, the anchor-shaped hanging nail is installed at the top end inside the prefabricated wall and is connected with the horizontal steel bars through the draw hook, and in the process of hoisting the PC component, the acting force applied to the anchor-shaped hanging nail is distributed to the horizontal steel bars and the vertical steel bars inside along the anchor-shaped hanging nail, so that the uniform stress is ensured when the PC component is hoisted, the crack and damage at the embedded position of the anchor-shaped hanging nail are effectively avoided, and the safe and reliable hoisting of the PC component is ensured;
(2) according to the PC component containing the anchor-shaped hanging nail, the lifting appliance clamping piece is positioned at the upper end of the hanging nail main rod piece, and the diameter of the lifting appliance clamping piece is larger than that of the hanging nail main rod piece, so that the PC component can be conveniently lifted in the subsequent process; in addition, the lower end of the hanging nail main rod piece is provided with a hanging nail anchor-shaped anchoring piece, when in hoisting, the hanging nail anchor-shaped anchoring piece is positioned at the hanging nail anchor-shaped anchoring piece in the PC component and generates interaction on concrete, and part of acting force can act on the hanging nail main rod piece, so that the mounting stability of the anchor-shaped hanging nail is improved, and the hoisting safety of the PC component is further ensured;
(3) in order to facilitate the installation of the draw hook, the anchor-shaped anchoring piece of the hanging nail is in an anchor shape, and the anchor-shaped anchoring piece of the hanging nail is arranged in parallel with the horizontal steel bar; in addition, in order to further improve the hoisting safety of the whole PC component, two drag hooks are arranged and are positioned at two sides of the main rod piece of the hoisting nail and symmetrically arranged, so that the stress is more uniform in the subsequent hoisting process;
(4) according to the PC component containing the anchor-shaped hanging nail, the shape and the size of the corresponding part on the anchor-shaped hanging nail are limited, so that on one hand, the anchor-shaped hanging nail is conveniently installed in a prefabricated wall, and the PC component is conveniently hoisted; on the other hand, the acting force of the concrete in the PC component on the anchor type hanging nail is ensured to be large enough, and the installation position of the anchor type hanging nail of the PC component can not crack and be damaged in the hoisting process, so that the hoisting safety is ensured;
(5) the PC component containing the anchor-shaped hanging nail is characterized in that the corresponding position on the anchor-shaped hanging nail is processed by arc-shaped and ribbing, namely the joint between the arc-shaped and ribbing is processed by arc transition, so that the problem of potential safety hazard caused by stress concentration in the hoisting process is avoided;
(6) according to the PC component containing the anchor-shaped hanging nail, the hanging groove is formed in the prefabricated wall, the anchor-shaped hanging nail is located in the center of the hanging groove, subsequent hanging equipment is conveniently connected with the anchor-shaped hanging nail for hanging, in addition, the upper end face of the anchor-shaped hanging nail is flush with the upper end face of the prefabricated wall, and the anchor-shaped hanging nail cannot influence the PC component in the installation process of the PC component, so that the installation of the PC component is facilitated;
(7) the PC component containing the anchor-shaped hanging nail is simple and convenient to manufacture and low in cost by designing the shape of the anchor-shaped hanging nail; in the manufacturing process of the PC component, the installation process is simple; in addition, the anchor type hanging nail can be widely used for mounting and constructing the assembly type structural member, the anchoring force of the anchor type hanging nail is effectively increased, the risk is reduced, and safety accidents are prevented.
Drawings
FIG. 1 is a perspective view of a PC member with an anchor-shaped hanging nail according to the present invention;
FIG. 2 is a schematic top view of a PC component containing an anchor shaped hanging nail according to the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2;
FIG. 5 is a schematic perspective view of an anchor shaped lifting nail according to the present invention;
FIG. 6 is a schematic side view of the anchor shaped hanging nail of the present invention;
fig. 7 is a front view structural schematic diagram of the anchor-shaped hanging nail of the invention.
The reference numerals in the schematic drawings illustrate:
10. prefabricating a wall; 21. horizontal reinforcing steel bars; 22. vertical reinforcing steel bars; 23. pulling a hook; 30. anchor type hanging nails; 31. a hanger card; 32. hanging and nailing the main rod piece; 33. hanging and nailing the anchoring piece; 34. hanging and nailing an anchor-shaped anchoring piece; 40. and (5) hoisting the groove.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Example 1
As shown in fig. 1, the PC component with anchor-shaped hanging nails of the present embodiment includes a prefabricated wall 10, horizontal steel bars 21 and vertical steel bars 22 are arranged inside the prefabricated wall 10, and with reference to fig. 2, 3 and 4, a plurality of rows of horizontal steel bars 21 are arranged along the height direction of the prefabricated wall 10, and two rows of horizontal steel bars 21 are arranged along the width direction of the prefabricated wall 10; vertical reinforcing bar 22 is equipped with the multirow along prefabricated wall 10's length direction, and is the cross between vertical reinforcing bar 22 and the horizontal reinforcement 21 and intersects, connect fixedly through the steel wire between vertical reinforcing bar 22 and the horizontal reinforcement 21.
It should be noted that, in the present embodiment, the horizontal bars 21 are equally spaced, and the vertical bars 22 are equally spaced.
In addition, in this embodiment, two anchor type hanging nails 30 are further provided inside the prefabricated wall 10, two anchor type hanging nails 30 are provided, two anchor type hanging nails 30 are located at the top end inside the prefabricated wall 10, and the anchor type hanging nails 30 are located between two rows of horizontal steel bars 21 in the width direction of the prefabricated wall 10; in addition, a drag hook 23 is provided at the lower end of each anchor type hanging nail 30, the drag hook 23 is provided along the width direction of the prefabricated wall 10, and both ends of the drag hook 23 are respectively connected to a horizontal reinforcing bar 21.
The PC component containing the anchor-shaped hanging nail comprises a horizontal steel bar 21 and a vertical steel bar 22, the horizontal steel bar 21 and the vertical steel bar 22 are distributed, the anchor-shaped hanging nail 30 is installed at the top end inside a prefabricated wall 10, the anchor-shaped hanging nail 30 is connected with the horizontal steel bar 21 through a draw hook 23, when the PC component is hoisted, acting force applied to the anchor-shaped hanging nail 30 is distributed to the horizontal steel bar 21 and the vertical steel bar 22 inside along the anchor-shaped hanging nail 30, and acting force applied to the PC component when hoisting is about to be distributed to all the steel bars evenly, so that the acting force is distributed to the whole PC component evenly, cracking at the embedded part of the anchor-shaped hanging nail 30 is effectively avoided, and safe and reliable hoisting of the PC component is guaranteed.
It should be noted that the two anchor type lifting nails 30 in this embodiment are symmetrically arranged about the symmetry axis of the PC member in the length direction, so as to ensure the stability during subsequent lifting, and in the lifting process, the acting forces applied to the two anchor type lifting nails 30 are equal, so as to ensure the uniformity of the stress of the steel bars in the PC member, thereby ensuring the safety performance of lifting.
Example 2
The PC member with anchor-shaped hanging nail of this embodiment is basically the same as embodiment 1, except that: with reference to fig. 5, 6 and 7, the anchor type lifting pin 30 of the present embodiment includes a lifting pin clamping piece 31, a lifting pin main rod 32, a lifting pin anchoring piece 33 and a lifting pin anchor-shaped anchoring piece 34, wherein the lifting pin clamping piece 31 is disposed at the upper end of the lifting pin main rod 32, and the diameter of the lifting pin clamping piece 31 is greater than that of the lifting pin main rod 32, so as to facilitate subsequent lifting of the PC component, and avoid the problem of dropping off the PC component during lifting. The hanging nail anchor piece 33 and the hanging nail anchor piece 34 are arranged at the lower end of the hanging nail main rod piece 32, wherein the hanging nail anchor piece 33 is positioned below the hanging nail anchor piece 34, the hanging nail anchor piece 34 is arc-shaped, and the hanging nail main rod piece 32 is positioned in the middle of the hanging nail anchor piece 34, as shown in fig. 5.
Preferably, in this embodiment, the anchor-shaped anchoring piece 34 of the hanging nail is parallel to the horizontal steel bar 21, the draw hook 23 is located on the upper end surface of the anchor-shaped anchoring piece 34 of the hanging nail, and when the PC member is in the process of hoisting, the anchor-shaped hanging nail 30 is subjected to an upward acting force, and then the anchor-shaped hanging nail 30 transmits the acting force to the draw hook 23, so that the acting force is uniformly transmitted to the steel bar in the PC member.
Furthermore, the drag hook 23 of this embodiment is equipped with two, just the drag hook 23 is located the both sides of hanging nail main pole piece 32 respectively, and two drag hooks 23 set up about hanging nail main pole piece 32 symmetry to the homogeneity that distributes when guaranteeing follow-up atress.
As shown in FIG. 7, the anchor 34 of the present embodiment is curved, and the length of the inner arc on one side of the main rod 32 of the anchor is L125mm in length and L in outer arc length2Is 45mm and the height H of the anchor 34 is 35 mm. By limiting the shape and size of the anchor-shaped anchor piece 34 of the hanging nail, when the PC component is hoisted, the concrete at the anchor-shaped anchor piece 34 of the hanging nail interacts with the anchor-shaped anchor piece 34 of the hanging nail, and part of the acting force acts on the main rod piece 32 of the hanging nail, so that the concrete extrudes the main rod piece 32 of the hanging nail, the installation stability of the anchor-type hanging nail 30 is ensured, and the hoisting safety of the PC component is further ensured.
In addition, the anchor tab 34 of the peg in this embodiment has a wall thickness L312mm, the width of the anchor-shaped anchor piece 34 of the hanging nail is 12mm, the total height of the hanger clamping piece 31, the main rod piece 32 of the hanging nail and the anchor piece 33 of the hanging nail is 200mm, the contact area between the concrete and the anchor-shaped hanging nail 30 is increased, so that the acting force exerted by the concrete in the PC component on the anchor-shaped hanging nail 30 is ensured to be large enough, and the PC component is lifted in the processThe installation position of the anchor type hanging nail 30 can not be cracked and damaged, and the hoisting safety is further ensured.
Example 3
The PC component with anchor-shaped hanging nail in this embodiment is basically the same as embodiment 2, except that: with reference to fig. 3 and 4, in this embodiment, in order to facilitate hoisting of the PC component, a hoisting groove 40 is formed in the prefabricated wall 10, and the anchor type hoisting nail 30 is located at the center of the hoisting groove 40, so that the hoisting device can be connected with the anchor type hoisting nail 30 for hoisting.
Preferably, the lifting groove 40 in this embodiment is a circular groove.
It should be noted that the upper end surface of the anchor-type hanging nail 30 in this embodiment is flush with the upper end surface of the prefabricated wall 10, that is, the upper end surface of the hanger clamping piece 31 is flush with the upper end surface of the prefabricated wall 10, and this structural design can effectively avoid the influence of the anchor-type hanging nail 30 on the installation of the PC component, thereby facilitating the installation of the PC component.
In addition, the joint between the hanger clamping piece 31 and the hanging nail main rod piece 32 in the embodiment adopts arc-shaped and ribbed treatment, namely, the joint between the hanger clamping piece and the hanging nail main rod piece is subjected to arc transition treatment, and the purpose is to avoid the problem of potential safety hazard caused by stress concentration in the hoisting process. The connection between the hanging nail main rod piece 32 and the hanging nail anchoring piece 33 is also processed by arc shape and ribbing.
According to the PC component containing the anchor-shaped hanging nail, the shape and the structure of the anchor-shaped hanging nail 30 are designed, so that the PC component is simple and convenient to manufacture and low in cost; in the manufacturing process of the PC component, the installation process is simple; in addition, the anchor type hanging nail 30 can be widely used for mounting and constructing the assembly type structural member, the anchoring force of the anchor type hanging nail 30 is effectively increased, the risk is reduced, and safety accidents are prevented.
Preferably, the anchor-type hanging nail 30 in the embodiment is formed by one-step pressing, so that the anchor-type hanging nail 30 is simpler and more convenient to produce, and the production cost is reduced.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (9)
1. A PC component containing anchor-shaped hanging nails comprises a prefabricated wall (10), and is characterized in that: horizontal steel bars (21), vertical steel bars (22) and anchor type hanging nails (30) are arranged in the prefabricated wall (10), a plurality of rows of the horizontal steel bars (21) are arranged in the height direction of the prefabricated wall (10), and two rows of the horizontal steel bars (21) are arranged in the width direction of the prefabricated wall (10); the vertical steel bars (22) and the horizontal steel bars (21) are in cross connection; anchor type hangs nail (30) and is equipped with two, is located prefabricated wall (10) inside top, and between two rows of horizontal reinforcement (21) of prefabricated wall (10) width direction, the lower extreme that anchor type hung nail (30) is equipped with drag hook (23), drag hook (23) set up along the width direction of prefabricated wall (10), and drag hook (23) both ends link to each other with a horizontal reinforcement (21) respectively.
2. A PC component including an anchor peg according to claim 1, wherein: the anchor type hanging nail (30) comprises a hanger clamping piece (31), a hanging nail main rod piece (32), a hanging nail anchoring piece (33) and a hanging nail anchor-shaped anchoring piece (34), wherein the hanger clamping piece (31) is arranged at the upper end of the hanging nail main rod piece (32), and the diameter of the hanger clamping piece (31) is larger than that of the hanging nail main rod piece (32); the hanging nail anchor piece (33) and the hanging nail anchor-shaped anchor piece (34) are arranged at the lower end of the hanging nail main rod piece (32), the hanging nail anchor-shaped anchor piece (34) is arc-shaped, the hanging nail anchor-shaped anchor piece (34) is parallel to the horizontal steel bar (21), and the draw hook (23) is positioned on the upper end face of the hanging nail anchor-shaped anchor piece (34).
3. A PC component including an anchor peg according to claim 2, wherein: the two draw hooks (23) are arranged, and the draw hooks (23) are respectively positioned on two sides of the hanging nail main rod piece (32).
4. A PC component including an anchor peg according to claim 3, wherein: the inner arc length of the anchor-shaped anchoring piece (34) of the hanging nail at one side of the main rod piece (32) of the hanging nail is L125mm in length and L in outer arc length2Is 45mm and the height H of the anchor-shaped anchor tab (34) of the peg is 35 mm.
5. A PC component comprising an anchor peg according to claim 4, wherein: the wall thickness of the anchor-shaped anchoring piece (34) of the hanging nail is L3Is 12 mm.
6. A PC component comprising an anchor peg according to claim 5, wherein: the total height of the hanger clamping sheet (31), the hanging nail main rod piece (32) and the hanging nail anchoring sheet (33) is 200 mm.
7. A PC component comprising an anchor peg according to claim 6, wherein: the connection part between the hanger clamping piece (31) and the hanging nail main rod piece (32) is processed by arc and ribbing; the connection between the hanging nail main rod piece (32) and the hanging nail anchoring piece (33) is also processed by arc-shaped and ribbing.
8. A PC structure comprising an anchor peg according to any one of claims 1 to 7, wherein: the prefabricated wall (10) is provided with a hoisting groove (40), the anchor type hoisting nail (30) is positioned in the center of the hoisting groove (40), and the upper end surface of the anchor type hoisting nail (30) is flush with the upper end surface of the prefabricated wall (10).
9. A PC component including an anchor peg according to any one of claims 8, wherein: the hoisting groove (40) is a circular groove.
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| CN202010476828.XA CN111576727A (en) | 2020-05-29 | 2020-05-29 | PC component that contains anchor shape and hangs nail |
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| CN202010476828.XA CN111576727A (en) | 2020-05-29 | 2020-05-29 | PC component that contains anchor shape and hangs nail |
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