CN215254501U

CN215254501U - Can repeat outer scaffold frame drawknot built-in fitting of turnover use

Info

Publication number: CN215254501U
Application number: CN202121866875.1U
Authority: CN
Inventors: 王林
Original assignee: China Railway Construction Group Co Ltd
Current assignee: China Railway Construction Group Co Ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-12-21
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses an external scaffold drawknot embedded part capable of being repeatedly circulated and used, including the embedded part, embedded part one end is placed outside the inner formworks, and the other end is placed inside the inner formworks, the fixed locating plate that has installed on the embedded part, the locating plate is installed inside the inner formworks, the outer formworks have still been installed to inner formworks one side, concrete has been pour between inner formworks and the outer formworks, embedded part pot head is equipped with protective case, protective case installs in locating plate one side, and extends to the outer formworks outside, the internal thread has been installed inside embedded part one end, embedded part one end has been installed connecting screw, the one end of connecting screw is equipped with the first external screw thread that matches with the internal thread, and installs inside the embedded part through threaded connection, and the other end is fixedly connected with external scaffold; the utility model discloses a knot built-in fitting can demolish in step with outer scaffold, can repeatedly have enough to meet the need the use, material saving.

Description

Can repeat outer scaffold frame drawknot built-in fitting of turnover use

Technical Field

The utility model relates to a construction technical field, in particular to outer scaffold frame drawknot built-in fitting that can repeatedly have enough to meet need use.

Background

The scaffold is connected with an embedded part embedded in a building wall through a connecting piece, and the connecting piece can transmit pulling force and pressure and is an important component of the scaffold. Scaffold collapse accidents at home and abroad are basically caused by the fact that the number of embedded parts embedded in a building wall is insufficient or a connecting part and the embedded parts are not timely repaired after being separated.

At present, the steel pipe external scaffold and the structure drawknot in the whole building construction industry are all realized by vertically pre-embedding steel pipes on an edge beam. The pre-buried steel pipe drawknot is a more traditional method, can not be drawn when meeting a shear wall, can cause great waste because of being unable to have enough to meet the need and use, can not avoid follow-up construction contradiction, for example masonry, plaster, door and window or railing, outer wall coating construction all can receive very big influence, need repeatedly tear open and change or cut or reserve the hole and then block up the hole, need 5 processes at least from the completion of blocking up the hole to coating construction, it blocks up the layer to need to tear open one deck after the outer scaffolding, so outer scaffolding and structure drawknot are a troublesome problem of construction industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a reusable external scaffold drawknot embedded part; can demolish in step with outer scaffold, can repeatedly have enough to meet the need the use, material saving more can avoid the use to be demolishd at will by construction worker because of the influence construction, endangers outer scaffold's safety.

In order to achieve the purpose, the utility model provides an external scaffold drawknot embedded part which can be repeatedly used in a turnover way, comprising an embedded part, one end of the embedded part is arranged outside the inner template, the other end is arranged inside the inner template, a positioning plate is fixedly arranged on the embedded part, the positioning plate is arranged in the inner template, one side of the inner template is also provided with an outer template, concrete is poured between the inner template and the outer template, one end of the embedded part is sleeved with a protective sleeve which is arranged on one side of the positioning plate, and extends to the outside of the external template, an internal thread is arranged inside one end of the embedded part, a connecting screw rod is arranged at one end of the embedded part, a first external thread matched with the internal thread is arranged at one end of the connecting screw rod, and fixedly installed inside the embedded part through threaded connection, and the other end is fixedly connected with an external scaffold.

Preferably, one end of the embedded part is of a hollow tubular structure, and the embedded part is a round steel material component.

Preferably, the positioning plate is a square steel plate material member, and the positioning plate is fixedly arranged in the middle of the embedded part by welding to form a welding seam.

Preferably, the protection sleeve is tightly connected with the embedded part and used for protecting the interior of the embedded part from entering concrete.

Preferably, one end of the embedded part is provided with a pin hole for accommodating a pin, the pin hole is arranged on one side of the inner template, and the inner template is fixedly arranged between the pin and the positioning plate.

Preferably, the internal thread and the first external thread are both trapezoidal threads, the thread height of each trapezoidal thread is 3mm, the thread pitch is 2.3mm, and the ratio of the length of the internal thread to the length of the embedded part is 1/2-2/3.

Preferably, the length of the embedded part in the concrete is smaller than the width of the concrete, and the length of the protective sleeve is larger than the sum of the widths of the concrete and the outer formwork.

Preferably, the protective sleeve is a PVC sleeve material member.

Preferably, one end, far away from the embedded part, of the connecting screw rod is also provided with a second external thread, and a short steel pipe is sleeved on the second external thread and is fixedly connected with a vertical rod on the outer scaffold in a buckling mode through a fastener.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses place built-in fitting one end outside the inner formworks, the other end is placed inside the inner formworks, and the built-in fitting does not place inside the inner formworks completely like this, can be convenient for take out of built-in fitting, fixed locating plate has been installed on the built-in fitting, helps the fixed of the mounted position of built-in fitting, protective case has been installed to the part of built-in fitting inside the concrete to extend to the outer formworks outside, and the protection is used for protecting the built-in fitting inside not to advance the concrete, finishes when concrete placement and sclerosis, demolishs the outer formworks, installs the one end of connecting screw in the built-in fitting through threaded connection is fixed again, and the other end is connected with the scaffold frame fixedly, follows the order of concrete placement at last, and the scaffold frame is put in good lap joint layer by layer; when the outer scaffold needs to be dismantled, the connecting screw rods can be dismantled at the same time, the inner template can be dismantled in advance, after the inner template is dismantled, the embedded part in the protective sleeve is knocked, so that the embedded part can be taken out, the embedded part can be dismantled synchronously with the outer scaffold, the embedded part can be recycled, materials are saved, and the situation that the safety of the outer scaffold is endangered due to the fact that the embedded part is randomly dismantled by workers during the use process due to the influence on construction can be avoided; and small-diameter holes formed by the embedded parts are filled with materials such as glass cement when most of the external wall construction is finished and the external scaffold is dismantled layer by layer, and the holes are repaired by adopting an external wall process.

Generally, the utility model discloses possess following beneficial effect:

1. when the external scaffold is dismantled, the embedded part can be taken out for repeated use, so that the loss of the steel pipe in the traditional construction method is reduced, the cyclic utilization of the embedded part is realized, and the manufacturing cost is saved.

2. The embedded parts are embedded in the side faces of the beam, the column and the wall, so that the construction of brickwork, plastering and coating is not influenced, and the collapse accident of the scaffold caused by the fact that a constructor demolishs the wall connecting parts in a large area by people conveniently.

3. Through intensity checking calculation, resistance to plucking and destructive test, prove the utility model discloses an intensity and pulling force bear and all be far more than the standard requirement, and the efficiency of construction is high, equipment built-in fitting and outer scaffold frame simple and convenient during site operation, and drawknot intensity safe and reliable has effectively guaranteed the wholeness that outer scaffold frame and building are connected.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a cross-sectional view of an embedment provided by the present invention;

FIG. 2 is a cross-sectional view of the embedment member and the connecting screw rod provided by the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view of an actual application of an embedment provided by the present invention;

fig. 5 is a cross-sectional view of the utility model with the embedded part and the connecting screw rod installed together.

The figure includes:

1-embedded part, 3-inner template, 2-positioning plate, 4-outer template, 5-concrete, 6-protective sleeve, 11-internal thread, 7-connecting screw, 71-first external thread, 21-welding seam, 12-pin hole and 72-second external thread.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present embodiment, and it is obvious that the described embodiment is an embodiment of the present invention, not all embodiments. Based on this embodiment in the present invention, all other embodiments obtained by the ordinary skilled person in the art without creative work all belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides an external scaffold tie embedded part capable of being repeatedly used.

The external scaffold tie-in embedded part comprises an embedded part 1, as shown in fig. 1, one end of the embedded part 1 is of a hollow tubular structure, and the embedded part 1 is a round steel material component; the embedded part 1 is a cylinder, so that the embedded part is convenient to punch and install on the inner template 3, is also convenient to sleeve the protective sleeve 6, and can be more conveniently tightly connected with the protective sleeve 6.

Specifically, one end of the embedded part 1 is placed outside the inner formwork 3, the other end of the embedded part is placed inside the inner formwork 3, the embedded part 1 is not completely placed inside the inner formwork 3 but between the inner formwork 3 and the outer formwork 4, the concrete 5 only covers one part of the embedded part 1, and the embedded part 1 can be taken out conveniently in the later period.

As shown in fig. 4, a positioning plate 2 is fixedly installed on the embedded part 1, specifically, as shown in fig. 3, the positioning plate 2 is a square steel plate material member, and the positioning plate 2 is fixedly installed in the middle of the embedded part 1 by welding to form a welding seam 21; the embedded part installing structure is characterized in that the positioning plate 2 is installed inside the inner formwork 3, the positioning plate 2 is fixedly installed on the embedded part 1, the fixing of the installation position of the embedded part 1 is facilitated, a part of the embedded part 1 can penetrate out of the inner formwork 3, the positioning plate 2 is arranged on one side of the inner formwork 3 in a leaning mode, an outer formwork 4 is further installed on one side of the inner formwork 3, the inner formwork 3 and the outer formwork 4 are arranged in parallel, concrete 5 is poured between the inner formwork 3 and the outer formwork 4, one end of the embedded part 1 is sleeved with a protective sleeve 6, the protective sleeve 6 is installed on one side of the positioning plate 2 and extends to the outside of the outer formwork 4, and particularly, the protective sleeve 6 is a PVC sleeve material component; in a construction site, the PVC sleeve is easy to obtain, has low cost and is beneficial to reducing the whole construction cost.

Further, the protection sleeve 6 is tightly connected with the embedded part 1 and used for protecting the concrete 5 from entering the embedded part 1, and internal threads 11 inside the embedded part 1 are guaranteed not to be occupied by the concrete 5, so that the embedded part 1 is smoothly connected with the connecting screw 7 and is firmly connected.

As shown in fig. 2, an internal thread 11 is provided inside one end of the embedded part 1, a connecting screw 7 is provided at one end of the embedded part 1, a first external thread 71 adapted to the internal thread 11 is provided at one end of the connecting screw 7, and is fixedly provided inside the embedded part 1 through threaded connection, and the other end is fixedly connected to the external scaffold.

As shown in fig. 4, embedded part 1 one end is equipped with the pin hole 12 that is used for holding the pin, pin hole 12 is installed in inner formword 3 one side, inner formword 3 is fixed to be installed between pin and locating plate 2, and embedded part 1 just can stably be installed on inner formword 3 like this, has strengthened the stability that embedded part 1 and inner formword 3 are connected, is favorable to accelerating the construction process.

As shown in fig. 3, the positioning plate 2 is a square steel plate member and is connected with the concrete 5, so that the embedded part 1 can be clamped, the embedded part 1 cannot rotate, the threaded connection between the embedded part 1 and the connecting screw 7 is smooth, the connection speed between the embedded part 1 and the connecting screw 7 is faster, the assembly time is saved, and the construction process is accelerated.

As shown in fig. 5, the internal thread 11 and the first external thread 71 are both trapezoidal threads, specifically, the height of the trapezoidal thread is 3mm, the pitch is 2.3mm, the ratio of the length of the internal thread 11 to the length of the embedment 1 is 1/2 to 2/3, in this embodiment, the length of the internal thread 11 is equal to half of the length of the embedment 1, and the longer the length of the internal thread 11 is, the more stable the connection with the connecting screw 7 becomes.

As shown in fig. 4, the length of the embedded part 1 in the concrete 5 is less than the width of the concrete 5, and the length of the protective sleeve 6 is greater than the sum of the widths of the concrete 5 and the outer formwork 4; the embedded part 1 with higher manufacturing cost does not need to be manufactured as long, the cost advantage of the protective sleeve 6 is fully utilized, and the cost is further reduced.

As shown in fig. 2 and 5, one end of the connecting screw rod 7, which is far away from the embedded part 1, is also provided with a second external thread 72, and the second external thread 72 is sleeved with a short steel pipe and is fixedly connected with the vertical rod on the external scaffold in a fastening manner through a fastener.

The method comprises the following steps of:

step S1; and installing the inner template 3 and the outer template 4, and drilling through holes at the positions where the embedded parts 1 need to be installed so as to install the embedded parts 1 conveniently.

Step S2; the embedded part 1 extends out from the inner side of the inner template 3, the positioning plate 2 is arranged at one side of the inner template 3, and the pin is inserted into the pin hole 12, so that the embedded part 1 is fixedly installed.

Step S3; and inserting the protective sleeve 6 into the end part of the embedded part 1 from one side of the outer template 4, tightly connecting the protective sleeve with the embedded part 1 and leaning against the positioning plate 2.

Step S4; concrete 5 is poured between the inner formwork 3 and the outer formwork 4.

Step S5; and after the concrete 5 is poured and hardened, the outer template 4 is detached, one end of the connecting screw 7 is fixedly arranged in the embedded part 1 through threaded connection, and the other end of the connecting screw is fixedly connected with the outer scaffold.

Step S6; and (4) overlapping the outer scaffold layer by layer according to the sequence of pouring the concrete 5 and removing the outer template 4.

The method comprises the following steps of dismantling and recovering the embedded part 1:

step S11; the outer scaffolding is dismantled, the connecting screw 7 can be dismantled at the same time, the pins inserted inside the pin holes 12 are dismantled, and the inner formworks 3 are also dismantled, the inner formworks 3 can also be dismantled in advance.

Step S12; after the inner formwork 3 is removed, knocking the embedded part 1 in the protective sleeve 6, so that the embedded part 1 can be taken out, the embedded part 1 can be removed synchronously with an outer scaffold, and meanwhile, the protective sleeve 6 in the embedded part can also be removed; of course, the protective sleeve 6 may also be left inside the concrete 5 without being removed.

Therefore, the embedded part 1 and the protective sleeve 6 can be repeatedly used in a turnover manner, no loss part exists, materials are saved, the cost is reduced, and the situation that the safety of an external scaffold is endangered due to the fact that construction is randomly dismantled by workers in the using process is influenced can be avoided; the small-diameter holes formed by the embedded parts 1 and the protective sleeves 6 are filled with materials such as glass cement when the construction of most of the outer wall is completed and the outer scaffold is dismantled layer by layer, and the holes are repaired by adopting an outer wall process.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. The utility model provides a but reuse external scaffolding drawknot built-in fitting, its characterized in that includes built-in fitting (1), built-in fitting (1) one end is placed in interior template (3) outside, and the other end is placed in interior template (3) inside, fixed locating plate (2) of having installed on built-in fitting (1), locating plate (2) are installed inside interior template (3), exterior template (4) have still been installed to interior template (3) one side, concreting (5) have been pour between interior template (3) and exterior template (4), built-in fitting (1) one end cover is equipped with protective case (6), protective case (6) are installed in locating plate (2) one side to extend to exterior template (4) outside, built-in fitting (1) one end inside is equipped with internal thread (11), connecting screw (7) have been installed to built-in fitting (1) one end, one end of the connecting screw rod (7) is provided with a first external thread (71) matched with the internal thread (11), the first external thread is fixedly arranged inside the embedded part (1) through threaded connection, and the other end of the connecting screw rod is fixedly connected with the outer scaffold.

2. A reusable external scaffold drawknot embedded part according to claim 1, characterized in that one end of the embedded part (1) is a hollow tubular structure, and the embedded part (1) is a round steel material member.

3. A reusable external scaffold tie-in embedded part according to claim 1, wherein the positioning plate (2) is a square steel plate material member, the positioning plate (2) is fixed in the middle position of the embedded part (1) by welding, and a welding seam (21) is formed.

4. A reusable external scaffold tie embedment according to claim 1, wherein said protective sleeve (6) is tightly connected to the embedment (1) for protecting the interior of the embedment (1) from the ingress of concrete (5).

5. A reusable external scaffold drawknot embedded part according to claim 1, wherein one end of the embedded part (1) is provided with a pin hole (12) for receiving a pin, the pin hole (12) is installed at one side of the internal template (3), and the internal template (3) is fixedly installed between the pin and the positioning plate (2).

6. A reusable external scaffolding tie embedment according to claim 1, wherein the internal thread (11) and the first external thread (71) are both trapezoidal threads having a thread height of 3mm and a pitch of 2.3mm, the ratio of the length of the internal thread (11) to the length of the embedment (1) being between 1/2 and 2/3.

7. A reusable external scaffold tie embedment according to claim 1, wherein the length of the embedment (1) inside the concrete (5) is less than the width of the concrete (5), and the length of the protective sleeve (6) is greater than the sum of the widths of the concrete (5) and the external template (4).

8. A reusable external scaffold tie embedment according to claim 1, wherein said protective sleeve (6) is a PVC casing material member.

9. The reusable external scaffold drawknot embedded part according to claim 1, wherein one end of the connecting screw rod (7) far away from the embedded part (1) is also provided with a second external thread (72), and the second external thread (72) is sleeved with a short steel pipe and is fixedly connected with a vertical rod on the external scaffold through a fastener.