A prefabricated building connecting device and a method of using the same

Abstract

The application discloses an assembled building connecting device and a using method thereof, and belongs to the technical field of assembled buildings. In view of the problems of great installation and positioning difficulty, complicated adjustment and poor universality of the existing prefabricated wall, the device comprises two oppositely arranged working units, each unit comprising a fastening module, a positioning module and a mounting plate. The positioning module is driven by a bidirectional screw rod to synchronously adjust the spacing of the positioning blocks, can be adapted to connecting ribs with different spacings, and realizes rapid and accurate positioning of the device. The fastening module adopts a bevel slide block matched with a connecting rod transmission, can automatically push the clamping blocks to synchronously clamp the wall when the prefabricated wall is inserted, does not need additional fastening operation, and the rollers on the clamping blocks can reduce the insertion resistance of the wall. The device is convenient to install, accurate in positioning, and strong in universality, effectively improves the installation efficiency of the assembled wall, and reduces the construction workload.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and in particular to a prefabricated building connection device and its usage method. Background Technology

[0002] Prefabricated buildings are constructed by transporting prefabricated components to the construction site after they have been prefabricated in the factory, and then assembling and installing the components through reliable connection methods. They have advantages such as fast construction speed, energy saving and environmental protection, and controllable quality, and are an important development direction for the current construction industry.

[0003] During the installation of precast walls, it is necessary to connect and fix the precast walls to the foundation slab. Traditional connection methods often use grouting sleeve connections or on-site welding. These methods have problems with installation positioning, and the precast walls are prone to positional deviations during installation. Furthermore, the positioning and adjustment operations are cumbersome, requiring repeated manual calibration, resulting in low installation efficiency. At the same time, some existing connection devices cannot be adapted to the connecting bars with different spacings on the foundation slab, resulting in poor versatility. Moreover, after the wall is inserted, additional tightening operations are required, further increasing the workload and making it difficult to meet the needs of rapid assembly. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a prefabricated building connection device and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated building connection device, characterized in that: it includes two opposing working units, each working unit including a fastening module, a positioning module and an mounting plate, the positioning module being positioned above the mounting plate, the fastening module being positioned above the positioning module, the mounting plate being fixedly mounted on a base plate, and multiple connecting ribs being vertically arranged on the base plate.

[0006] Furthermore, the positioning module includes a bidirectional lead screw, which has opposite threaded portions on both sides of the axial center line. Two positioning blocks are symmetrically arranged on the bidirectional lead screw along the axial center line, and the positioning blocks are respectively threaded into the opposite threaded portions on both sides of the bidirectional lead screw.

[0007] Furthermore, the positioning module also includes a platform, the bottom surface of which is fixedly connected to the upper surface of the mounting plate. The side of the platform is provided with a mounting groove, and a rotating frame is provided at the bottom of the mounting groove. The rotating frame is rotatably connected to the platform. The bidirectional lead screw is coaxially arranged with the rotating frame and is rotatably connected to the rotating frame. The side of the rotating frame is provided with a sliding groove three, and the positioning block is slidably engaged with the sliding groove three.

[0008] Furthermore, both ends of the rotating frame are provided with rotating parts, and the rotating frame is rotatably connected to the platform body through the rotating parts.

[0009] Furthermore, a fixing plate is fixedly connected to the end of the rotating part of the rotating frame head. The fixing plate is located on the outside of the platform and is provided with fixing bolts for fixing to the platform.

[0010] Furthermore: the tail of the positioning block is provided with a transverse through threaded hole, the positioning block is threaded with a bidirectional lead screw through the threaded hole, and the head of the positioning block is provided with a positioning groove.

[0011] Furthermore: the fastening module includes a housing, the housing being a groove-shaped opening facing inwards, a first sliding groove being provided on the bottom surface of the groove of the housing, and a second sliding groove being provided on each side surface of the groove of the housing, an inclined slider being provided in the first sliding groove, the side surface of the inclined slider being provided with an inclined surface facing inwards and upwards, the inclined slider slidingly engaging with the housing through the first sliding groove, and an elastic element being provided between the inclined slider and the housing.

[0012] Furthermore: the elastic element is a spring, one end of which is fixedly connected to the side of the inclined slider, and the other end of which is fixedly connected to the side of the first groove in the housing.

[0013] Furthermore, the fastening module also includes a connecting rod, and clamping blocks are provided on both the left and right sides of the inclined slider through the connecting rod. The clamping blocks are slidably engaged with the housing through the second sliding groove. The inclined slider is rotatably connected to the connecting rod, and the connecting rod is rotatably connected to the clamping blocks.

[0014] Furthermore, multiple rollers are rotatably mounted on the opposing surfaces of the two clamping blocks.

[0015] Furthermore, the mounting plate has several fixing holes.

[0016] A method for using a prefabricated building connection device, characterized by comprising the following steps:

[0017] S1. Place this device in the corresponding position on the base plate, with the two working units facing each other;

[0018] S2. Rotate the rotating frame to make the positioning block rotate out of the mounting slot until the positioning block is flat;

[0019] S3. Tighten the fixing bolts to restrict the rotation of the rotating frame;

[0020] S4. Tighten the double-acting screw so that the two positioning blocks move synchronously in opposite directions along the axis of the double-acting screw until the positioning grooves on the two positioning blocks are pressed against the connecting ribs on the base plate.

[0021] S5. Secure the device to the base plate by passing bolts through the fixing holes on the mounting plate;

[0022] S6. Insert the precast wall into the installation position from above the device;

[0023] S7. The side of the precast wall abuts against the inclined slider, causing the inclined slider to move along the slide groove toward the housing, compressing the spring. The spring keeps the inclined slider pressed against the side of the precast wall.

[0024] S8. The inclined slider moves along the groove towards the shell, and under the action of the connecting rod, the two clamping blocks on the front and rear sides of the precast wall (2) clamp the precast wall at the same time.

[0025] S9. The connecting bars on the base plate are inserted into the insertion holes at the bottom of the precast wall, the fastening module clamps the precast wall, and the precast wall is installed in place.

[0026] The present invention has the following beneficial effects:

[0027] 1. This invention, by setting a positioning module, can be unfolded and positioned during installation. The two positioning blocks are synchronously adjusted by using a bidirectional lead screw, which can adapt to the connecting ribs with different spacing on the base plate, achieve fast and accurate positioning, effectively avoid the positional deviation of the device during installation, and improve the installation accuracy.

[0028] 2. The positioning block of the present invention can be rotated and stored, avoiding bumps and knocks during transportation and installation, thus ensuring the accuracy and quality of installation.

[0029] 3. The fastening module of this invention adopts a transmission structure of inclined slider and connecting rod. When the precast wall is inserted, the inclined slider can be automatically pushed by the extrusion force of the wall, thereby driving the clamping blocks on both sides to clamp the front and rear sides of the wall synchronously. No additional fastening operation is required, and the installation efficiency is high. At the same time, the elastic element can provide a stable preload to ensure the reliability of clamping. The rollers on the clamping blocks can convert sliding friction into rolling friction, reduce the resistance when the wall is inserted, and facilitate the installation of the wall. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a cross-sectional view of the positioning module in this invention;

[0032] Figure 3 This is an exploded view of the positioning module in this invention;

[0033] Figure 4 This is a cross-sectional view of the fastening module in this invention;

[0034] Figure 5This is an exploded view of the fastening module in this invention;

[0035] Figure 6 This is a top view of the precast wall structure.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Base plate; 11. Connecting rib; 2. Precast wall; 21. Insertion hole; 3. Fastening module; 31. Housing; 311. Slide groove one; 312. Slide groove two; 32. Inclined slider; 321. Mounting ear one; 33. Clamping block; 331. Roller; 332. Mounting ear two; 34. Connecting rod; 341. Mounting hole; 35. Spring; 4. Positioning module; 41. Platform; 411. Rotating hole; 42. Mounting groove; 43. Rotating frame; 431. Slide groove three; 432. Two-way lead screw; 433. Rotating part; 434. Fixing plate; 435. Fixing bolt; 44. Positioning block; 441. Threaded hole; 442. Positioning groove; 5. Mounting plate; 51. Fixing hole. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1

[0040] Reference Figures 1-6 A prefabricated building connection device includes two opposing working units, which are used to position and clamp the two sides of a prefabricated wall 2 respectively. Each working unit includes a fastening module 3, a positioning module 4 and an mounting plate 5. The positioning module 4 is located above the mounting plate 5, and the fastening module 3 is located above the positioning module 4. Several connecting ribs 11 are vertically arranged on the base plate 1 for cooperating with the insertion holes 21 at the bottom of the prefabricated wall 2.

[0041] The positioning module 4 includes a platform 41, the bottom surface of which is fixedly connected to the upper surface of the mounting plate 5. The platform 41 has a mounting groove 42 on its side, and a rotating frame 43 is provided at the bottom of the mounting groove 42. Both ends of the rotating frame 43 are provided with rotating parts 433. The platform 41 has a corresponding rotating hole. The rotating frame 43 is rotatably connected to the platform 41 through the rotating parts 433, so that the rotating frame 43 can rotate in the mounting groove 42. When not in use, it can be stored in the mounting groove to reduce space occupation and avoid bumps during transportation and deployment.

[0042] A fixed plate 434 is fixedly connected to the end of the rotating part 433 at the head of the rotating frame 43. The fixed plate 434 is located on the outside of the platform 41. A fixing bolt 435 is provided on the fixed plate 434. When the rotating frame 43 rotates to the designated position, tightening the fixing bolt 435 can lock the fixed plate 434 to the platform 41 and restrict the rotation of the rotating frame 43.

[0043] A bidirectional lead screw 432 is coaxially mounted on the rotating frame 43. The bidirectional lead screw 432 is rotatably connected to the rotating frame 43. The bidirectional lead screw 432 has oppositely threaded portions on both sides along the axial center line. A sliding groove 431 is provided on the side of the rotating frame 43. Two positioning blocks 44 are symmetrically arranged on the bidirectional lead screw 432 along the axial center line. The positioning blocks 44 slide in engagement with the sliding groove 431. A transverse through-hole 441 is provided at the tail of the positioning block 44. The positioning block 44 engages with the oppositely threaded portions on both sides of the bidirectional lead screw 432 through the threaded hole 441. When the bidirectional lead screw 432 is rotated, the two positioning blocks 44 can move synchronously towards or away from each other along the sliding groove 431 to adjust their distance. A positioning groove 442 is provided at the head of the positioning block 44. The positioning groove 442 can be engaged with the connecting rib 11 to achieve positioning of the device.

[0044] The fastening module 3 includes a housing 31, which is fixed to the top of the platform 41. The housing 31 is a groove with an opening facing inward. A first groove 311 is provided on the bottom surface of the groove of the housing 31, and a second groove 312 is provided on both the front and rear sides of the groove. An inclined slider 32 is provided in the first groove 311. An inclined surface is provided on the inner side of the inclined slider 32, which faces inward and upward. When the precast wall 2 is inserted downward, the side of the wall can squeeze the inclined surface, pushing the inclined slider 32 to move into the housing 31. The inclined slider 32 slides with the housing 31 through the first groove 311. An elastic element, specifically a spring 35, is provided between the inclined slider 32 and the housing 31. The spring 35 can be compressed when the inclined slider 32 is squeezed, providing a reverse elastic force to ensure that the inclined slider 32 always presses against the side of the wall.

[0045] The inclined slider 32 has mounting ears 321 on both its left and right sides. Clamping blocks 33 are connected to the left and right sides of the inclined slider 32 via connecting rods 34. The clamping blocks 33 slide in conjunction with the sliding groove 312. Mounting holes 341 are provided at both ends of the connecting rod 34, and the two ends of the connecting rod 34 are rotatably connected to the mounting ears 321 of the inclined slider 32 and the mounting ears 332 of the clamping blocks 33, respectively. When the inclined slider 32 moves into the housing 31, the connecting rod 34 drives the two clamping blocks 33 to move inwards and oppositely along the sliding groove 312, thereby clamping the front and rear sides of the precast wall 2 and achieving clamping and fixing of the precast wall 2. Multiple rollers 331 are rotatably mounted on the opposing surfaces of the two clamping blocks 33. The rollers 331 can convert sliding friction into rolling friction when the wall is inserted, reducing the resistance to wall insertion and facilitating wall installation.

[0046] The mounting plate 5 has several fixing holes 51, which are used to fix the mounting plate 5 to the base plate 1 by bolts, thereby completing the fixation of the device.

[0047] Example 2

[0048] Based on Embodiment 1, a method for using a prefabricated building connection device is as follows:

[0049] Place the two working units of this device at corresponding positions on the base plate 1, with the two working units facing each other and corresponding to the two sides of the precast wall 2 respectively;

[0050] Rotate the rotating frame 43 to rotate the positioning block 44, which was originally stored in the mounting slot 42, until it is in a horizontal and flat state.

[0051] Tighten the fixing bolts 435 on the fixing plate 434 to lock the fixing plate 434 to the platform 41, thereby restricting the rotation of the rotating frame 43;

[0052] Tighten the double-acting screw 432. The double-acting screw 432 rotates and drives the two positioning blocks 44 to move to both sides along the slide groove 431. Adjust the distance between the two positioning blocks 44 until the positioning grooves 442 on the two positioning blocks 44 are engaged and pressed against the connecting rib 11 on the bottom plate 1. The positioning of the device is completed, ensuring that the position of the device is aligned with the connecting rib.

[0053] By passing bolts through the fixing holes 51 on the mounting plate 5, the mounting plate 5 is fixed to the base plate 1, thus completing the fixing of the entire connection device;

[0054] Insert the precast wall 2 downwards from above the device, aligning it with the position between the two working units, with the insertion hole 21 at the bottom of the precast wall 2 aligned with the connecting rib 11 on the base plate 1;

[0055] During the downward insertion of the precast wall 2, the side of the wall abuts against the inclined surface of the inclined slider 32, pushing the inclined slider 32 to move along the slide groove 311 into the housing 31, compressing the spring 35. The elastic force of the spring 35 makes the inclined slider 32 always press against the side of the precast wall 2, pre-positioning the side of the wall.

[0056] As the inclined slider 32 moves inward, the connecting rod 34 drives the two clamping blocks 33 to move synchronously inward along the slide groove 312, thereby clamping the front and rear sides of the precast wall 2 and realizing automatic clamping and fixing of the wall.

[0057] Once the precast wall 2 is inserted into place, the connecting ribs 11 on the base plate 1 are fully inserted into the insertion holes 21 at the bottom of the precast wall 2. At the same time, the clamping blocks 33 of the fastening module 3 clamp the wall, completing the installation of the precast wall 2. At this time, the position of the wall is fixed and will not shift.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated building connection device, characterized in that: It includes two opposing working units. Each working unit includes a fastening module (3), a positioning module (4), and a mounting plate (5). The positioning module (4) is located above the mounting plate (5), and the fastening module (3) is located above the positioning module (4). The mounting plate (5) is fixedly mounted on the base plate (1). Multiple connecting ribs (11) are vertically arranged on the base plate (1). The positioning module (4) includes a bidirectional lead screw (432), which has opposite threaded portions on both sides of the axial center line. Two positioning blocks (44) are symmetrically arranged on the bidirectional lead screw (432) along the axial center line. The positioning blocks (44) are respectively threaded into the opposite threaded portions on both sides of the bidirectional lead screw (432).

2. The prefabricated building connection device according to claim 1, characterized in that: The positioning module (4) also includes a platform (41), the bottom surface of which is fixedly connected to the upper surface of the mounting plate (5). The side of the platform (41) is provided with a mounting groove (42), and a rotating frame (43) is provided at the bottom of the mounting groove (42). The rotating frame (43) is rotatably connected to the platform (41). The bidirectional lead screw (432) is coaxially arranged with the rotating frame (43). The bidirectional lead screw (432) is rotatably connected to the rotating frame (43). The side of the rotating frame (43) is provided with a sliding groove (431), and the positioning block (44) is slidably engaged with the sliding groove (431).

3. The prefabricated building connection device according to claim 2, characterized in that: The rotating frame (43) is provided with rotating parts (433) on both ends, and the rotating frame (43) is rotatably connected to the platform (41) through the rotating parts (433).

4. A prefabricated building connection device according to claim 3, characterized in that: The rotating part (433) of the rotating frame (43) is fixedly connected to a fixed plate (434). The fixed plate (434) is located on the outside of the platform (41). The fixed plate (434) is provided with fixing bolts (435) for fixing to the platform (41).

5. A prefabricated building connection device according to claim 1, characterized in that: The positioning block (44) has a transverse through threaded hole (441) at its tail end. The positioning block (44) is threadedly engaged with the bidirectional lead screw (432) through the threaded hole (441). The positioning block (44) has a positioning groove (442) at its head.

6. A prefabricated building connection device according to claim 1, characterized in that: The fastening module (3) includes a housing (31), which is a groove with an opening facing inward. A sliding groove (311) is provided on the bottom surface of the groove of the housing (31), and a sliding groove (312) is provided on the side surface of the groove of the housing (31). An inclined slider (32) is provided in the sliding groove (311). An inclined surface is provided on the side surface of the inclined slider (32), which faces inward and upward. The inclined slider (32) slides with the housing (31) through the sliding groove (311). An elastic element is provided between the inclined slider (32) and the housing (31).

7. A prefabricated building connection device according to claim 6, characterized in that: The elastic element is a spring (35). One end of the spring (35) is fixedly connected to the side of the inclined slider (32), and the other end of the spring (35) is fixedly connected to the side of the slide groove (311) in the housing (31).

8. A prefabricated building connection device according to claim 7, characterized in that: The fastening module (3) also includes a connecting rod (34). Clamping blocks (33) are provided on both the left and right sides of the inclined slider (32) through the connecting rod (34). The clamping blocks (33) are slidably engaged with the housing (31) through the second slide groove (312). The inclined slider (32) is rotatably connected to the connecting rod (34). The connecting rod (34) is rotatably connected to the clamping blocks (33). Multiple rollers (331) are rotatably installed on the opposite surfaces of the two clamping blocks (33).

9. A prefabricated building connection device according to claim 1, characterized in that: The mounting plate (5) has several fixing holes (51).

10. A method of using a prefabricated building connection device, characterized in that: Includes the following steps: S1. Place the device in the corresponding position on the base plate (1), with the two working units facing each other; S2. Rotate the rotating frame (43) so that the positioning block (44) rotates out of the mounting slot (42) until the positioning block (44) is flat; S3. Tighten the fixing bolt (435) to restrict the rotation of the rotating frame (43); S4. Tighten the double-acting screw (432) so that the two positioning blocks (44) move synchronously in opposite directions along the axis of the double-acting screw (432) until the positioning grooves (442) on the two positioning blocks (44) are pressed against the connecting ribs (11) on the bottom plate (1). S5. Fix the device to the base plate (1) by passing bolts through the fixing holes (51) on the mounting plate (5); S6. Insert the precast wall (2) into the installation position from above the device; S7. The side of the precast wall (2) presses against the inclined slider (32), causing the inclined slider (32) to move along the slide groove (311) toward the housing (31), compressing the spring (35). The spring (35) causes the inclined slider (32) to always press against the side of the precast wall (2). S8. The inclined plane slider (32) moves along the slide groove (311) toward the shell (31), and under the action of the connecting rod (34), the two clamping blocks (33) on the front and rear sides of the precast wall (2) clamp the precast wall (2) at the same time. S9. The connecting bar (11) on the base plate (1) is inserted into the insertion hole (21) at the bottom of the precast wall (2), the fastening module (3) clamps the precast wall (2), and the precast wall (2) is installed in place.

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