CN218779669U

CN218779669U - Rear-mounted prefabricated hook assembly

Info

Publication number: CN218779669U
Application number: CN202222809745.5U
Authority: CN
Inventors: 王凯; 李晓; 于国亮; 王春燕; 王国鹏; 王少华; 耿晋媛
Original assignee: Survey And Design Branch Of China Railway 12th Bureau Group Co ltd; China Railway 12th Bureau Group Co Ltd
Current assignee: Survey And Design Branch Of China Railway 12th Bureau Group Co ltd; China Railway 12th Bureau Group Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-03-31
Anticipated expiration: 2032-10-25

Abstract

The utility model discloses a rear-mounted prefabricated hook assembly relates to engineering development technical field, including former concrete structure roof, the top of former concrete structure roof is equipped with new concrete square mound, has seted up two former concrete structure roof trompils on the former concrete structure roof, and the inside of former concrete structure roof trompil is equipped with the lifting hook, and the bottom of lifting hook is located the below of former concrete structure roof, and two former concrete structure roof trompils and fixedly connected with lifting hook horizontal segment are run through respectively at the both ends of lifting hook. According to the rear-mounted prefabricated lifting hook device, the hole of the original concrete structure top plate formed on the original concrete structure top plate is small, and the original concrete structure top plate is basically not damaged; the newly-added cast-in-place concrete square pier is combined with the original concrete structure top plate, so that the integrity is strong; the square pier is cast-in-place concrete, better adapts to the condition of the top surface of the top plate of the original concrete structure, and is suitable for the condition of an upturned beam and the like; the rear lifting hook is anchored in cast-in-place concrete and has good durability.

Description

Rear-mounted prefabricated hook assembly

Technical Field

The utility model relates to an engineering development technical field specifically is a rear-mounted prefabricated hook assembly.

Background

The condition that a rear lifting hook is required often appears in the process of modification of a plurality of old houses, construction omission of new projects and design change, and the rear lifting hook is used for installation, maintenance, replacement and the like of elevators, civil air defense doors, equipment with larger weight and volume and the like.

In the Chinese invention patent application number: the CN201610379694.3 discloses a rear-mounted prefabricated lifting hook device and a mounting structure thereof, wherein the rear-mounted prefabricated lifting hook device and the mounting structure thereof comprise a lifting hook, a fixed steel plate and a lifting hook fixing seat, the lifting hook comprises a lifting hook semi-ring and lifting hook supporting legs fixedly connected with two ends of the lifting hook semi-ring, the lifting hook fixing seat is positioned below the fixed steel plate, through holes corresponding to the lifting hook semi-ring are respectively formed in the middle parts of the fixed steel plate and the lifting hook fixing seat, the lifting hook semi-ring penetrates through the through holes of the fixed steel plate and the lifting hook fixing seat, and the lifting hook supporting legs are welded and fixed on the top surface of the fixed steel plate; the hook semi-ring is fixed with the hook fixing seat by gluing; a grouting channel is formed in the lifting hook fixing seat, a grout outlet of the grouting channel is flush with the side surface of the lifting hook fixing seat, and a grout inlet of the grouting channel is connected with a grouting pipe.

The device has the following problems in applicability: the steel bar of the original top plate can be damaged by arranging a larger round hole on the original structure top plate; the steel plate is combined with the original structure, and the integrity is relatively weak; the steel plate is arranged under the influence of the top surface condition of an original structure, the original structure generally has an upturned beam and the like, and the steel plate cannot be normally laid and fixed; the original structure top plate is generally positioned on a ground warehouse and a roof top plate, is in an outdoor environment and is in a direct contact environment with soil, and a rear-mounted lifting hook device is required to have better corrosion resistance, so that the equipment is obviously not provided; such rear-mounted hook devices are not only responsible for installation of the equipment, but also for subsequent maintenance and replacement of the equipment, which requires better durability of the hook.

Relatively speaking, the utility model discloses simpler, its reinforced concrete member more accords with practical requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rear-mounted prefabricated hook assembly to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a rear-mounted prefabricated hook assembly, includes former concrete structure roof, the top of former concrete structure roof is equipped with newly-increased concrete square mound, two former concrete structure roof trompils have been seted up on the former concrete structure roof, the inside of former concrete structure roof trompil is equipped with the lifting hook, the bottom of lifting hook is located the below of former concrete structure roof, two former concrete structure roof trompils and fixedly connected with lifting hook horizontal segment are run through respectively to the both ends of lifting hook, the bar planting between former concrete structure roof and the newly-increased concrete square mound, the middle part of bar planting is equipped with the built-in reinforcing bar net piece of square mound, two the one end that the lifting hook horizontal segment is close to each other is fixed with the built-in reinforcing bar net piece ligature of square mound.

Optionally, the lengths of the two horizontal sections of the hook are equal.

Optionally, the two horizontal sections of the hook are located on the same horizontal plane.

Optionally, the lifting hook is in a U-shaped structure.

Optionally, the hole specifications of the two original concrete structure top plates are equal.

Optionally, the lifting hook is matched with an opening of the top plate of the original concrete structure.

Optionally, two the original concrete structure roof trompil staggers each other with the built-in reinforcing bar net piece of square pier.

Compared with the prior art, the utility model provides a rear-mounted prefabricated lifting hook device possesses following beneficial effect:

1. according to the rear-mounted prefabricated lifting hook device, the hole of the original concrete structure top plate formed on the original concrete structure top plate is small, and the original concrete structure top plate is basically not damaged; the newly-added cast-in-place concrete square pier is combined with the original concrete structure top plate, so that the integrity is strong; the square pier is cast-in-place concrete, so that the condition of the top surface of the top plate of the original concrete structure can be better adapted, and the square pier can be suitable for the conditions of an upturned beam and the like; the rear lifting hook is anchored in cast-in-place concrete and has good durability.

Drawings

Fig. 1 is a schematic view of an internal cross-sectional structure of a rear-mounted prefabricated hook device of the present invention;

fig. 2 is the schematic view of the three-dimensional structure of the rear-mounted prefabricated hook device of the utility model.

In the figure: 1. adding a concrete square pier; 2. planting bars; 3. a top plate of an original concrete structure; 4. drilling a hole on the top plate of the original concrete structure; 5. a reinforcing mesh is arranged in the square pier; 6. a hook horizontal section; 7. and (4) a lifting hook.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1-2, in an embodiment of the present application, a rear prefabricated hook device is provided, including an original concrete structure top plate 3, a new concrete square pier 1 is disposed on a top of the original concrete structure top plate 3, two original concrete structure top plate openings 4 are disposed on the original concrete structure top plate 3, specifications of the two original concrete structure top plate openings 4 are equal, a hook 7 is disposed inside the original concrete structure top plate opening 4, the hook 7 is in a "U" shape, the hook 7 is adapted to the original concrete structure top plate opening 4, a bottom of the hook 7 is located below the original concrete structure top plate 3, two ends of the hook 7 respectively penetrate through the two original concrete structure top plate openings 4 and are fixedly connected with hook horizontal sections 6, lengths of the two hook horizontal sections 6 are equal, the two hook horizontal sections 6 are located on a same horizontal plane, a steel bar 2 is disposed between the original concrete structure top plate 3 and the new concrete square pier 1, a square pier built-in-concrete net 5 is disposed in a middle portion of the steel bar net, and one end of the two hook horizontal sections 6 close to each other is fixed to the square pier built-in-net 5.

In the embodiment, the hole 4 of the original concrete structure top plate formed on the original concrete structure top plate 3 is smaller, and the original concrete structure top plate 3 is basically not damaged; secondly, combining the cast-in-place newly-added concrete square pier 1 with the original concrete structure top plate 3, the integrity is strong; the square pier is cast-in-place concrete, so that the condition of the top surface of the top plate 3 of the original concrete structure can be better adapted, and the square pier can be suitable for the conditions of an upturned beam and the like; the rear lifting hook 7 is anchored in cast-in-place concrete and has good durability.

This embodiment is applicable to the old and old house and constructs and omit, the condition that needs rearmounted lifting hook in the design change with new project.

When the ink line ejecting device is used, the position where the lifting hook 7 needs to be arranged is found according to a drawing, and the ink line is used for ejecting the position line. And (3) chiseling concrete on the original concrete structure top plate 3 at the position of the square pier (if a waterproof layer exists, the waterproof layer needs to be removed firstly), and completely removing the waterproof layer, so that the newly added concrete square pier 1 which is poured later and the original concrete structure top plate 3 can be effectively connected into a whole.

An electric drill is used for arranging an original concrete structure top plate opening 4 (the aperture is 30 mm) in the position of the original concrete structure top plate 3 needing the rear hook 7, the original concrete structure top plate opening penetrates through the original concrete structure top plate 3, and drilled holes need to avoid the square pier built-in reinforcing mesh 5. And then, placing the lifting hook 7 prefabricated in advance according to requirements in place, bending the lifting hook by using tools such as a steel pipe, a wrench and the like to ensure the forming size of the lifting hook 7, and hooking the upper part of the square pier with the lifting hook 7, namely embedding the steel mesh 5 and binding and fixing the lifting hook. The square pier built-in steel bar net piece 5 is bidirectional 12@150 (HRB 400), and the square pier built-in steel bar net piece 5 is connected with the original concrete structure roof 3 in a steel bar planting 2 mode (steel bar planting hole depth 10d, steel bar planting adopts A-level glue).

Before adding the concrete square pier 1, the concrete interface agent is coated on the interface of the new concrete and the old concrete, and the lifting hook 7 and the gap of the original concrete structure top plate opening 4 are cast and tamped tightly by using waterproof mortar. The strength of the newly added concrete square pier 1 is higher than that of the original structure by more than one grade.

And after the newly added concrete square pier 1 is cast and molded and reaches the design strength, the original waterproof design requirement is required to be recovered.

After the strength of the newly added concrete square pier 1 reaches the design, the lifting hook 7 can be used for lifting elevators, civil air defense doors, equipment and the like.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prefabricated hook assembly of rear-mounted which characterized in that: including former concrete structure roof (3), the top of former concrete structure roof (3) is equipped with newly-increased concrete square pier (1), two former concrete structure roof trompils (4) have been seted up on former concrete structure roof (3), the inside of former concrete structure roof trompil (4) is equipped with lifting hook (7), the bottom of lifting hook (7) is located the below of former concrete structure roof (3), the both ends of lifting hook (7) run through two former concrete structure roof trompils (4) and fixedly connected with lifting hook horizontal segment (6) respectively, bar planting (2) between former concrete structure roof (3) and the newly-increased concrete square pier (1), the middle part of bar planting (2) is equipped with square pier built-in steel reinforcement net piece (5), two the one end that lifting hook horizontal segment (6) are close to each other is fixed with square pier built-in steel reinforcement net piece (5) ligature.

2. A rear mounted prefabricated hook assembly as claimed in claim 1, wherein: the lengths of the two hook horizontal sections (6) are equal.

3. A rear mounted prefabricated hook assembly as claimed in claim 2, wherein: the two hook horizontal sections (6) are positioned on the same horizontal plane.

4. A rear mounted prefabricated hook assembly as claimed in claim 1, wherein: the lifting hook (7) is in a U-shaped structure.

5. A rear mounted prefabricated hook assembly as claimed in claim 1, wherein: the specifications of the openings (4) of the two original concrete structure top plates are equal.

6. A rear-mounted prefabricated lifting hook device as claimed in claim 1, wherein: the lifting hook (7) is matched with the hole (4) of the top plate of the original concrete structure.

7. A rear mounted prefabricated hook assembly as claimed in claim 1, wherein: two original concrete structure roof trompil (4) stagger each other with square pier built-in reinforcing bar net piece (5).