CN215829661U

CN215829661U - Prefabricated component's connecting device and prefabricated component connection structure

Info

Publication number: CN215829661U
Application number: CN202122199550.9U
Authority: CN
Inventors: 聂良润
Original assignee: Changsha Broad Homes Industrial Anhui Co ltd
Current assignee: Changsha Broad Homes Industrial Anhui Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-02-15
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a prefabricated part connecting device and a prefabricated part connecting structure. The connecting device of the prefabricated part comprises an anchoring part and a fixing plate, wherein the lower end of the anchoring part is fixedly connected with the fixing plate, and the fixing plate is provided with a through hole for the connecting part to pass through; the prefabricated part connecting structure comprises a first prefabricated part and a second prefabricated part, wherein a connecting device of the prefabricated part is embedded in the first prefabricated part, and the first prefabricated part is fixedly connected with a connecting piece arranged on the second prefabricated part. On the premise of ensuring the safety and reliability of the steel bar connecting structure, the utility model obviously reduces the manufacturing cost and the installation cost of the connecting structure of the fully-assembled concrete wall (slab) building by simplifying the structure of the steel bar connecting structure.

Description

Prefabricated component's connecting device and prefabricated component connection structure

Technical Field

The utility model belongs to the field of fabricated concrete buildings, and particularly relates to a connecting device of prefabricated parts and a connecting structure of the prefabricated parts.

Background

The design of the multi-layer fully-assembled concrete wall (slab) building focuses on concept design and structural analysis, particularly the connection design of prefabricated parts, redundant constraints are set, and effective measures are taken to enhance the structural integrity. In the prior art, the grouting sleeve is a connection mode which is widely applied, has the characteristics of reliable performance, simplicity and convenience in installation and good waterproof performance, but has a complex construction process, high requirements on technical personnel and difficulty in accurately grasping the construction quality of the node.

Chinese utility model patent CN213143405U discloses a connection box for prefabricated building, which adopts a purely mechanical way to connect prefabricated components together. The connecting box that its adopted includes a bottom plate, a roof, two curb plates and a backplate, and welded fastening has the both ends of U type anchor reinforcing bar respectively on two curb plates, is equipped with the baffle in the connecting box, and set up two through-holes that are located the baffle both sides on the bottom plate for fixed connection screw rod. The utility model discloses a through set up two connecting screw rods in a connecting box, improved the joint strength of prefabricated component about single connecting box position department, reduce the quantity of the pre-buried connecting box in prefabricated component edge, reduced prefabricated component's manufacturing cost, improved prefabricated component production efficiency. But this utility model's manufacturing cost is main roof, curb plate, backplate and the baffle of concentrating, still necessarily through under the prerequisite of proof strength, simplify the structure, further reduce manufacturing cost, improve production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a connecting device of prefabricated parts, which has simple structure and reliable strength and can solve the technical problem of high box-type connecting cost of the existing fully-assembled concrete wall (slab) building.

In order to achieve the purpose, the utility model adopts the following specific technical scheme:

the connecting device for the prefabricated parts comprises an anchoring part and a fixing plate, wherein the lower end of the anchoring part is fixedly connected with the fixing plate, and the fixing plate is provided with a through hole for a connecting part to pass through.

Therefore, the connecting device of the prefabricated parts adopts a combined structure of the fixing plate and the anchoring part, the structure of the connecting device is simplified on the premise of ensuring the reliable connection of the prefabricated parts, the manufacturing processes of cutting, stamping, machining, welding and the like of the connecting device are reduced, the production efficiency is improved, and the manufacturing cost of the connecting device of the prefabricated parts is obviously reduced.

Preferably, the through hole is formed in the middle of the fixing plate, and the lower end of the anchoring piece is fixedly connected to two sides of the through hole of the fixing plate, so that stress of the connecting device is more balanced, and a better connecting effect is achieved.

Preferably, the anchoring piece is a U-shaped steel bar, and two ends of the U-shaped steel bar are welded on the horizontal plane of the fixing plate. The U-shaped steel bar is used as the anchoring part, so that the anchoring strength of the steel bar connecting part and the prefabricated part is improved.

Preferably, the anchoring part is two steel bars, and the lower ends of the two steel bars are welded on the horizontal plane of the fixing plate. On the premise of ensuring the anchoring strength, the structure form of the anchoring part is simplified, the construction is convenient, and the manufacturing cost is reduced.

Preferably, threaded holes are formed in two sides of the through hole of the fixing plate, machining is convenient, manufacturing cost is low, and the anchoring piece can be fastened on the fixing plate through threads.

Preferably, the anchoring part is two bolts, and the two bolts are matched with the threaded holes in the fixing plate to be screwed and fixed. The bolt is a standard part, has stable quality, can be produced in large batch, can be assembled by self, and further reduces the production cost.

Preferably, the two bolts are hexagon bolts. The hexagon head of hexagon bolt can play the effect of anchor board, has strengthened anchor intensity.

Preferably, the anchoring part is two steel bars with threads processed at the lower ends, and the two steel bars with threads processed at the lower ends are matched with and screwed up and fixed with the threaded holes in the fixing plate. Adopt the processing screwed reinforcing bar as anchor assembly, adopt the screw-thread fit fixed welding step that can save, improve production efficiency to the reinforcing bar is drawn materials conveniently and the processing of screw thread is swift, has further reduced manufacturing cost.

Based on the same inventive concept, the utility model also relates to a prefabricated part connecting structure, which comprises a first prefabricated part and a second prefabricated part which are connected, wherein the first prefabricated part is internally embedded with the connecting device as claimed in any one of claims 1 to 8, the anchoring part is embedded in the first prefabricated part, the end part of the first prefabricated part is provided with a reserved cavity, and the fixing plate is arranged in the reserved cavity of the prefabricated part and is parallel to the end surface of the prefabricated part; the end part of the second prefabricated part is provided with at least one connecting piece which can penetrate through the through hole of the fixing plate, and one end of each connecting piece extends into the reserved cavity of the first prefabricated part and is fixedly connected with the fixing plate of the connecting device through a fastening piece.

Therefore, the anchoring piece is arranged in the first prefabricated part, the reserved cavity is formed in the end part of the first prefabricated part, the fixing plate is arranged in the reserved cavity, construction is facilitated, and the box-type connection effect is achieved.

Preferably, the connecting piece is a connecting screw rod or a connecting steel bar, and a thread is arranged at one end of the connecting piece extending into the reserved cavity.

The utility model has the following advantages:

1. the utility model discloses a integrated configuration of anchor assembly and fixed plate to set up the reservation cavity on first prefabricated component, make prefabricated component connection structure reach box-type connection effect, and under the prerequisite of guaranteeing joint strength, simplified prefabricated component's connecting device's structure and manufacturing flow, show to have reduced manufacturing cost.

2. The anchoring part can be welded on the fixing plate by adopting U-shaped steel bars or two independent steel bars, so that the anchoring strength of the connecting device of the prefabricated part is ensured. And hexagonal bolts or two steel bars with threads processed at the lower ends can be adopted, so that the anchoring parts are in threaded connection with the fixing plate, and the welding step is omitted. The hexagonal head can play the role of an anchoring plate, and the anchoring strength is improved. By adopting the hexagonal bolt standard part with stable quality, the mass production of the components can be realized, and the production cost is obviously reduced. The reinforcing steel bar is convenient to obtain and process, the cost is further reduced, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic diagram of an embedded structure of a connection device in embodiment 1 of the present invention;

FIG. 2 is a schematic view of the fixing plate of FIG. 1;

FIG. 3 is a schematic view showing a connecting structure of prefabricated parts to which the connecting device of example 1 is applied

FIG. 4 is a schematic view of an embedded structure of a connecting device of embodiment 2 of the present invention

Fig. 5 is a schematic diagram of an embedded structure of a connecting device in embodiment 3 of the present invention;

FIG. 6 is a plan view showing an assembling structure between the anchor and the fixing plate in the embodiment 3;

FIG. 7 is a schematic view of a pre-embedded structure of a connecting device according to an embodiment 4 of the present invention

The notation in the figure is: 1. an anchoring member; 2. a fixing plate; 3. a first prefabricated member; 4. reserving a cavity; 5. a through hole; 6. a second prefabricated member; 7. a connecting member.

Detailed Description

In order to better understand the objects, structure and functions of the present invention, a connecting device for prefabricated parts and a connecting structure for prefabricated parts according to the present invention will be described in further detail with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and 2, the connecting device for prefabricated parts is arranged in a first prefabricated part 3 and comprises an anchoring part 1 and a fixing plate 2, wherein the fixing plate 2 is provided with a through hole 5 along the thickness direction, and a connecting part 7 can pass through the through hole 5. Anchoring member 1 is U type reinforcing bar, and its both sides of through-hole 5 on fixed plate 2 are welded to, and preferably, anchoring member 1 welds on the horizontal plane of fixed plate 2 along the length direction of prefabricated component 3 for anchoring member 1's anchor effect reaches the best, can guarantee prefabricated component 3's strength properties simultaneously. This kind of embodiment simplifies the box-type connecting device of current full assembled concrete wall (board) building, has saved the setting and the concatenation process flow of roof, curb plate, backplate and baffle, and connecting device's comprehensive manufacturing cost can reduce by about 50%, under the prerequisite of guaranteeing joint strength, is showing and has reduced manufacturing cost and installation cost.

As shown in fig. 3, the connecting device is applied to a prefabricated member connecting structure, a connecting member 7 is provided at an end of the second prefabricated member 6, and one end of the connecting member 7 passes through a through hole of the fixing plate 2 and is fixedly connected with the fixing plate 2 by a fastening member. The connecting element 7 can be connected to the connecting device by means of fasteners and/or by means of a filling of filler (filler can be grout or concrete paste or mortar). In the production process of the first prefabricated part 3, a forming die of the first prefabricated part 3 is arranged, an embedded part is arranged at a position where the reserved cavity 4 needs to be arranged, so that the reserved cavity 4 is formed after the first prefabricated part 3 is poured, and meanwhile, the welded anchoring part 1 and the fixed plate 2 are placed at corresponding positions and then poured. After the first prefabricated part 3 is poured and molded, the anchoring part 1 is embedded in the first prefabricated part 3, the fixing plate 2 is arranged on the lower portion of the reserved cavity 4 and fixedly connected with the anchoring part 1, and the overall structure achieves a box-type connection effect.

During construction, the connecting piece 7 on the second prefabricated part 6 passes through the through hole 5 of the connecting device and extends into the reserved cavity 4 of the first prefabricated part 3, and the connecting piece 7 can be a connecting screw rod or a connecting steel bar. Preferably, a thread is arranged at one end of each connecting piece 7 extending into the reserved cavity 4, an operator can install a gasket and a nut through an open port on the side surface of the first prefabricated part 3, and the reserved cavity 4 is sealed by mortar after the nut is screwed down. It should be noted that the first prefabricated component 3 and the second prefabricated component 6 may be vertically connected or horizontally connected. A prefabricated floor slab or a prefabricated column can be arranged between the first prefabricated component 3 and the second prefabricated component 6, the first prefabricated component 3 and the second prefabricated component 6 can be directly abutted, and other prefabricated components or cast-in-place components can be arranged between the first prefabricated component 3 and the second prefabricated component.

Example 2

As shown in fig. 4, on the basis of embodiment 1, to the pre-buried connecting device further optimal design in first prefabricated component 3, anchor assembly 1 adopts two reinforcing bars, and the lower extreme of two reinforcing bars welds the both sides of through-hole 5 on fixed plate 2 respectively, uses two reinforcing bars to replace U shaped steel muscle, and it is convenient to draw materials, when guaranteeing anchor strength, has saved processing step and the processing cost of U shaped steel muscle, has further reduced construction cost, has improved the efficiency of construction.

Example 3

As shown in fig. 5 and 6, based on embodiment 1, the connecting device pre-embedded in the first prefabricated component 3 is further optimally designed, the anchoring member 1 is replaced by two hexagon bolts from a U-shaped steel bar, and threaded holes are formed in two sides of the through hole 5 on the fixing plate 2 for being screwed and fixed with the hexagon bolts. This kind of embodiment adopts threaded connection, has saved the welded connection of anchor assembly 1 with fixed plate 2 to the hex bolts is the standard component, can realize mass production, has further reduced manufacturing cost on the whole. Simultaneously, the hexagonal head can play the effect of anchor board, has further improved anchoring strength.

Example 4

As shown in fig. 7, in addition to embodiment 3, the design is further optimized, and the anchor 1 uses two steel bars with threads at the lower ends, and the two steel bars with threads at the lower ends are screwed and fixed with the threaded holes on the fixing plate 2. Under the prerequisite of guaranteeing anchor strength, adopt two processing screwed reinforcing bars as anchor assembly 1, the reinforcing bar can be used materials on the spot, and the processing of screw thread is convenient, has further reduced construction cost.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A connecting device of prefabricated parts is characterized in that: the device comprises an anchoring piece (1) and a fixing plate (2), wherein the lower end of the anchoring piece (1) is fixedly connected with the fixing plate (2), and a through hole (5) for a connecting piece (7) to pass through is formed in the fixing plate (2).

2. The prefabricated unit connecting device according to claim 1, wherein: the through hole (5) is arranged in the middle of the fixing plate (2), and the lower end of the anchoring piece (1) is fixedly connected to two sides of the through hole (5) of the fixing plate (2).

3. The prefabricated unit connecting device according to claim 1, wherein: the anchoring piece (1) is a U-shaped steel bar, and two ends of the U-shaped steel bar are welded on the horizontal plane of the fixing plate (2).

4. The prefabricated member connecting unit according to claim 1, wherein: the anchoring piece (1) is composed of two steel bars, and the lower ends of the two steel bars are welded on the horizontal plane of the fixing plate (2).

5. The prefabricated unit connecting device according to claim 2, wherein: threaded holes are formed in two sides of the through hole (5) of the fixing plate (2).

6. The prefabricated member connecting device according to claim 5, wherein: the anchoring piece (1) is composed of two bolts, and the two bolts are matched with threaded holes in the fixing plate (2) to be screwed and fixed.

7. The prefabricated member connecting device according to claim 6, wherein: the two bolts are hexagon bolts.

8. The prefabricated member connecting device according to claim 5, wherein: anchor part (1) is two lower extreme processing screwed reinforcing bars, two lower extreme processing screwed reinforcing bars are screwed up fixedly with the screw hole cooperation on fixed plate (2).

9. A prefabricated part connecting structure comprising a first prefabricated part (3) and a second prefabricated part (6) which are connected, characterized in that: the connecting device according to any one of claims 1 to 8 is embedded in the first prefabricated part (3), the anchoring piece (1) is embedded in the first prefabricated part (3), a reserved cavity (4) is formed in the end part of the first prefabricated part (3), and the fixing plate (2) is arranged in the reserved cavity (4) of the prefabricated part (3) and is parallel to the end face of the prefabricated part (3); the end part of the second prefabricated part (6) is provided with at least one connecting piece (7) which can penetrate through the through hole (5) of the fixing plate (2); one end of each connecting piece (7) extends into the reserved cavity (4) of the first prefabricated part (3) and is fixedly connected with the fixing plate (2) of the connecting device through a fastening piece.

10. The prefabricated member connecting structure according to claim 9, wherein: the connecting piece (7) is a connecting screw or a connecting steel bar, and threads are arranged at one end, extending into the reserved cavity (4), of the connecting piece (7).