Fabricated building bottom connecting mechanism

Abstract

The utility model discloses an assembly type building bottom connecting mechanism, and belongs to the technical field of building construction. Comprising a steel base, a plurality of corner bolts and a center bolt, a precast pile is formed on the steel base in a pouring mode, notches are reserved in the four corner sides of the steel base, an operation opening is transversely reserved in the steel base, side holes are formed in the four corners of the steel base, a center hole formed in the operation opening is formed in the center of the steel base, and the center bolt is arranged in the center hole. A pouring formwork frame is detachably installed on the precast pile, and the technical effects that the overall installation firmness is improved, and the service life is prolonged are achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building construction, in particular to a prefabricated building bottom connecting mechanism. BACKGROUND

[0002] A prefabricated building bottom connecting mechanism is disclosed in Chinese Patent No. 202221583309.4 entitled "Prefabricated Building Bottom Connecting Mechanism", which comprises a base, an installation mechanism provided on the upper end outer surface of the base, and a steel column provided on the upper end outer surface of the installation mechanism. The installation mechanism comprises a connecting frame, a first threaded hole, a placement slot, a second threaded hole, a slot, a key rod, a key groove, a connecting plate, a cross-shaped rod, a placement cavity, a third threaded hole, a threaded rod and a threaded groove. The connecting frame is located on the upper end of the base, the placement slot is opened on the inner surface of the upper end of the base, two groups of key grooves are respectively opened on the outer surfaces of the two sides of the placement slot, two groups of key rods are respectively fixedly installed on the outer surfaces of the two sides of the connecting frame, and the slot is opened in the middle of the connecting frame. In the above-mentioned patent, the bottom of the steel column can be conveniently fixed, the operation is simple, the placement cavity can accommodate the cross-shaped rod, the protruding placement is avoided, and better use prospect is brought. It is known that the use of bolts can improve the stability of the building, but the process of installing the bolts needs to twist the bolts, which not only needs a special tool (such as a wrench) to drive the bolts to rotate, but also needs to use a tool matched with the bolts to tighten the bolts. The operation process is complex and has certain defects.

[0003] The existing technology document with publication number CN219527966U provides a prefabricated building bottom connecting mechanism. The device is cooperated between the base, the connecting frame, the reinforcing plate, the installation assembly, the fastening unit, the fastening rod, the fastening slot, the reset spring and the trigger unit. When the connecting frame is installed on the base, the fastening rod is driven by the trigger unit to overcome the elastic force of the reset spring and is inserted into the fastening slot, the connecting piece is fixed on the base, when there is no external force to drive the fastening rod to be inserted into the fastening slot, the reset spring restores the elastic deformation process to drive the fastening rod to slide out of the fastening slot, so that the connecting frame can be detached from the base, and the use effect is good.

[0004] Although the existing technical solutions in the above-mentioned can achieve the beneficial effects related to the existing technology, there are still the following defects: the device needs to be used in cooperation with the spring, but the elastic rebound force of the spring will decrease after long-term use, which leads to poor overall firmness after assembly and low service life.

[0005] In view of this, we propose a prefabricated building bottom connecting mechanism. Content of the utility model

[0006] 1. Technical problem to be solved

[0007] The purpose of the present application is to provide a prefabricated building bottom connecting mechanism, which solves the technical problems in the above background art and achieves the technical effects of improving overall installation reliability and service life.

[0008] 2. Technical solution

[0009] The prefabricated building bottom connecting mechanism provided by the present application comprises a steel seat, a plurality of corner bolts, and a center bolt. A precast pile is formed by pouring on the steel seat. The four corners of the steel seat are provided with notches. The steel seat is provided with an operating opening in the transverse direction. The four corners of the steel seat are provided with side holes. The center of the steel seat is provided with a center hole which is placed in the operating opening. A pouring formwork frame is detachably mounted on the precast pile.

[0010] By adopting the above technical solution, each corner bolt and center bolt is welded and fixed on the reinforcement cage of the base. Each corner bolt corresponds to a side hole, and the center bolt corresponds to a center hole. The precast pile is hoisted onto the base, so that the corner bolts are inserted into the side holes, the center bolt is inserted into the center hole, the nuts are screwed onto the center bolt through the operating opening, the nuts are screwed onto the corner bolts through the notches, and the nuts are tightened by using a wrench. Finally, the pouring formwork frame is assembled on the precast pile, and then the notches and the operating opening are poured with cement for sealing. Finally, the pouring formwork frame is removed. Through the cooperation of the four corner bolts and the center bolt with the steel seat, the fixing reliability of the precast pile and the base is improved, and the service life is also increased.

[0011] As an optional solution of the technical solution of the present application, the steel seat is further provided with a communication groove which communicates with the notches, and a plurality of steel bars are welded and fixed on the steel seat.

[0012] By adopting the above technical solution, when the pouring formwork frame is sleeved on the steel seat and the cement is poured inside, the communication groove is used to facilitate the flow of cement, so that the four notches are poured. The steel seat is welded with four steel bars, and the stirrups are bundled on the four steel bars. Then, the precast pile is formed, thereby improving the strength of the precast pile and the steel seat.

[0013] As an optional solution of the technical solution of the present application, the pouring formwork frame comprises two first baffles, two second baffles, and two long screws with butterfly nuts. The two first baffles are vertically arranged between the two second baffles. The first baffle on one side is symmetrically fixed with a U-shaped clamp. The two long screws are respectively pivotally connected to the two sides of the first baffle on the other side. The long screw is adapted to the U-shaped clamp. The first baffle on one side is connected with a feeding pipe.

[0014] By adopting the technical scheme, the long screw rod is vertically fixed with a shaft rod at the end far from the wing nut, the shaft rod is rotationally connected with the shaft seat of the first baffle on the side far from the U-shaped clamp, and then the two second baffles are placed between the two first baffles and the four baffles are placed on the four sides of the steel base, and then the long screw rod is rotated and clamped into the clamping opening of the U-shaped clamp, and then the wing nut is tightened by rotating clockwise, and finally the cement is poured into the gap through the delivery pipe to pour the gap and the operation opening.

[0015] As an optional scheme of the technical scheme of the present application, the delivery pipe is throughly connected with a hopper, and the corner bolts and the center bolt are throughly installed on the steel plate.

[0016] By adopting the technical scheme, the cement is conveniently poured into the pouring formwork through the hopper, and the corner bolts and the center bolt are throughly installed on the steel plate, so that the installation stability of the four corner bolts and the center bolt is improved.

[0017] As an optional scheme of the technical scheme of the present application, the side of the second baffle close to the first baffle is symmetrically fixed with a positioning rod, and the first baffle is provided with a positioning hole matched with the positioning rod.

[0018] By adopting the technical scheme, the positioning rod is inserted into the corresponding positioning hole, so that the assembly of the first baffle and the second baffle is facilitated.

[0019] 3. Beneficial effects

[0020] One or more technical schemes provided in the embodiments of the present application have at least the following technical effects or advantages:

[0021] 1. The present application hoists the precast pile to the base, so that the corner bolts are inserted into the side holes, the center bolt is inserted into the center hole, the nut is screwed onto the center bolt through the operation opening, the nut is screwed onto the corner bolt through the gap side, and the nut is tightened by using a wrench, and finally the pouring formwork is assembled on the precast pile, and then the gap and the operation opening are poured with cement for sealing, and finally the pouring formwork is disassembled, the cooperation of the four corner bolts and the center bolt with the steel base improves the fixing firmness of the precast pile and the base, and the service life is also increased. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The present application discloses a kind of overall structure schematic view of prefabricated building bottom connecting mechanism;

[0023] Figure 2 The present application discloses a kind of pouring formwork structure schematic view of prefabricated building bottom connecting mechanism;

[0024] Figure 3This is a schematic diagram of the second baffle structure of a prefabricated building bottom connection mechanism disclosed in a preferred embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the first baffle structure of a prefabricated building bottom connection mechanism disclosed in a preferred embodiment of this application;

[0026] Figure 5 This is a schematic diagram of the overall structure of a prefabricated building bottom connection mechanism disclosed in a preferred embodiment of this application;

[0027] Figure 6 This is a schematic diagram of the corner bolts and center bolts of a prefabricated building bottom connection mechanism disclosed in a preferred embodiment of this application;

[0028] Figure 7 This is a schematic diagram of a steel base structure for a prefabricated building bottom connection mechanism disclosed in a preferred embodiment of this application;

[0029] The following are the labels in the diagram: 1. Precast pile; 2. Steel base; 21. Notch; 22. Operating port; 23. Side hole; 24. Center hole; 25. Connecting groove; 26. Reinforcing bar; 3. Corner bolt; 4. Center bolt; 5. Casting formwork frame; 51. First baffle; 511. U-shaped clip; 512. Positioning hole; 52. Second baffle; 521. Positioning rod; 53. Conveying pipe; 531. Funnel; 54. Long screw; 6. Steel plate. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] A prefabricated building bottom connection mechanism includes: a steel base 2, multiple corner bolts 3 and a central bolt 4. A precast pile 1 is cast on the steel base 2. Notches 21 are reserved on the four corners of the steel base 2. An operating opening 22 is reserved in the horizontal direction of the steel base 2. Side holes 23 are opened on the four corners of the steel base 2. A central hole 24 is opened in the center of the steel base 2 and placed in the operating opening 22. A casting template frame 5 is detachably installed on the precast pile 1.

[0032] Reference Figures 1-7The four corner bolts 3 are arranged on the steel seat 2, and each of the corner bolts 3 and the center bolt 4 is welded and fixed on the reinforcement cage of the base, and each of the corner bolts 3 corresponds to one side hole 23, and the center bolt 4 corresponds to the center hole 24. The prefabricated pile 1 is hoisted to the base, so that the corner bolt 3 is inserted into the side hole 23, the center bolt 4 is inserted into the center hole 24, the nut is screwed on the center bolt 4 through the operation port 22, the nut is screwed on the corner bolt 3 through the gap 21, and the nut is tightened through the wrench. Finally, the pouring formwork frame 5 is assembled on the prefabricated pile 1, and then the gap 21 and the operation port 22 are poured with cement, and finally the pouring formwork frame 5 is removed. Through the cooperation of the four corner bolts 3 and the center bolt 4 and the steel seat 2, the fixing firmness of the prefabricated pile 1 and the base is improved, and the service life is also increased.

[0033] The steel seat 2 is further provided with a communication groove 25 communicated with the gap 21, and a plurality of steel bars 26 are welded and fixed on the steel seat 2.

[0034] Referring to Figure 7 When the pouring formwork frame 5 is sleeved on the steel seat 2 and the cement is poured inside, the cement flows through the communication groove 25, so that the four gaps 21 are poured, and four steel bars 26 are welded on the steel seat 2. The stirrup is tied on the four steel bars 26, and then the prefabricated pile 1 is poured and formed, thereby improving the strength of the prefabricated pile 1 and the steel seat 2.

[0035] The pouring formwork frame 5 comprises two first baffles 51, two second baffles 52 and two long screws 54 with butterfly nuts, the two first baffles 51 are vertically arranged between the two second baffles 52, and a U-shaped clamp 511 is symmetrically fixed on one side of the first baffle 51. One end of each of the two long screws 54 is rotatably connected to the two sides of the other side of the first baffle 51, the long screw 54 is adapted to the U-shaped clamp 511, and the first baffle 51 is throughly connected with a feeding pipe 53.

[0036] Referring to Figures 3-5 The shaft rod is rotatably connected with the shaft seat of the first baffle 51 away from the side of the U-shaped clamp 511, and then the two second baffles 52 are placed between the two first baffles 51 by rotating the long screw 54, the four baffles are placed on the four sides of the steel seat 2, then the long screw 54 is rotated and clamped into the U-shaped clamp 511, then the butterfly nut is tightened by rotating clockwise, and finally the gap 21 and the operation port 22 are poured by pouring cement into the gap 21 through the feeding pipe 53.

[0037] The feeding pipe 53 is throughly connected with a hopper 531, and the corner bolt 3 and the center bolt 4 are installed through the steel plate 6.

[0038] Referring to Figure 2The four corner bolts 3 and the center bolt 4 are installed through the steel plate 6 to improve the installation stability of the four corner bolts 3 and the center bolt 4.

[0039] The second baffle plate 52 is symmetrically fixed with a positioning rod 521 near one side of the first baffle plate 51, and the first baffle plate 51 is provided with a positioning hole 512 matched with the positioning rod 521.

[0040] Referring to Figures 3-5 The positioning rod 521 is inserted into the corresponding positioning hole 512, so that the first baffle plate 51 and the second baffle plate 52 can be conveniently assembled.

[0041] Working principle: After the corner bolts 3 and the center bolt 4 are welded and fixed on the reinforcement cage of the base, the base is formed by pouring cement, then the precast pile 1 is hoisted so that the corner bolts 3 are inserted into the side holes 23 and the center bolt 4 is inserted into the center hole 24, the nut is screwed onto the center bolt 4 through the operation port 22, the nut is screwed on the corner bolt 3 through the gap 21, and the nut is tightened by a wrench, then the two second baffle plates 52 are placed between the two first baffle plates 51, the positioning rod 521 is inserted into the positioning hole 512, the long screw rod 54 is rotated and clamped into the U-shaped clamp 511, then the butterfly nut is tightened by rotating clockwise, finally the cement is transported into the gap 21 and the operation port 22 through the funnel 531 and the conveying pipe 53, and the cement is solidified after waiting.

Claims

1. A modular building bottom connection mechanism, characterized by: Include: Steel seat (2) and a plurality of corner bolts (3) and a center bolt (4), the steel seat (2) is formed by pouring a prefabricated pile (1), the steel seat (2) is reserved with a notch (21) on four corners, the steel seat (2) is reserved with an operating port (22) transversely, the steel seat (2) is provided with a side hole (23) on four corners, the steel seat (2) is provided with a center hole (24) in the center of the operating port (22), the prefabricated pile (1) is detachably mounted with a pouring formwork (5).

2. The modular building bottom connection mechanism according to claim 1, characterized in that: The steel seat (2) is further provided with a communication groove (25) in communication with the notch (21), and a plurality of steel bars (26) are welded and fixed on the steel seat (2).

3. The modular building bottom connection mechanism of claim 1, wherein: The pouring formwork (5) includes two first baffles (51), two second baffles (52) and two long screws (54) with butterfly nuts, the two first baffles (51) are vertically arranged between the two second baffles (52), the first baffle (51) is symmetrically fixed with a U-shaped clamp (511) on one side, and the two long screws (54) are respectively connected to the two sides of the first baffle (51) on the other side, the long screw (54) is matched with the U-shaped clamp (511), and the first baffle (51) is connected with a feeding pipe (53).

4. The modular building bottom connection mechanism of claim 3, wherein: The pouring formwork (5) includes two first baffles (51), two second baffles (52) and two long screws (54) with butterfly nuts, the two first baffles (51) are vertically arranged between the two second baffles (52), the first baffle (51) is symmetrically fixed with a U-shaped clamp (511) on one side, and the two long screws (54) are respectively connected to the two sides of the first baffle (51) on the other side, the long screw (54) is matched with the U-shaped clamp (511), and the first baffle (51) is connected with a feeding pipe (53).

5. The modular building bottom connection mechanism of claim 3, wherein: The pouring formwork (5) includes two first baffles (51), two second baffles (52) and two long screws (54) with butterfly nuts, the two first baffles (51) are vertically arranged between the two second baffles (52), the first baffle (51) is symmetrically fixed with a U-shaped clamp (511) on one side, and the two long screws (54) are respectively connected to the two sides of the first baffle (51) on the other side, the long screw (54) is matched with the U-shaped clamp (511), and the first baffle (51) is connected with a feeding pipe (53). The pouring formwork (5) includes two first baffles (51), two second baffles (52) and two long screws (54) with butterfly nuts, the two first baffles (51) are vertically arranged between the two second baffles (52), the first baffle (51) is symmetrically fixed with a U-shaped clamp (511) on one side, and the two long screws (54) are respectively connected to the two sides of the first baffle (51) on the other side, the long screw (54) is matched with the U-shaped clamp (511), and the first baffle (51) is connected with a feeding pipe (53).

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