A modular building connection node and connection method

Abstract

The present invention relates to the field of modular buildings, and specifically provides a modular building connection node for positioning and connecting a main beam and a cross beam, comprising a frame, the frame having a first side wall, the first side wall being longitudinally provided with a plurality of positioning holes, and a positioning assembly being provided at positions corresponding to the positioning holes in the frame; the positioning assembly comprising a movable rod capable of passing through the positioning hole, a driving block fixed on the movable rod, a slider sleeved on the movable rod and located between the driving block and the first side wall, and a driving member for driving the movable rod to reset; a guide portion for the slider to slide and a positioning portion for limiting the slider are provided on the first side wall, and the driving block can drive the slider to cooperate with the positioning portion; a connection method for a modular building connection node is also provided. The present invention can also quickly realize the assembly of bolts when there is a processing error in the bolt hole, thereby improving the assembly efficiency of the main beam and the cross beam.

Description

Technical Field

[0001] The invention relates to the field of modular buildings, and in particular to a modular building connection node and a connection method. Background Art

[0002] Modular building is an emerging building structure system. Each module unit in this system is prefabricated in the factory, transported to the site after completion and assembled into a whole building through reliable connection methods. It has the advantages of green construction, fast construction speed, little influence from climatic conditions, labor saving and improved building quality.

[0003] In modular buildings, the main beam and the cross beam are the most common components, and the two are usually connected and fixed by bolts. However, due to the excessive number of bolt holes during the assembly process, all bolts need to be manually aligned one by one to install them. This assembly method is extremely inefficient. At the same time, due to the existence of threaded hole processing errors, the bolt holes will be more or less offset during the alignment process, which also increases the difficulty of assembly. For example, in the specification with the announcement number CN111173135B, a strong axis assembly node of an H-shaped steel beam and an H-shaped steel column is disclosed, including an H-shaped steel beam and an H-shaped steel column, both of which are connected and fixed by bolts. The bolts also need to be manually aligned during the installation process, and the aforementioned problems of low assembly efficiency and assembly difficulties caused by threaded hole processing errors will also occur. Summary of the invention

[0004] Based on this, an object of the present invention is to provide a modular building connection node, which can quickly realize the assembly of bolts even when there are processing errors in the bolt holes, thereby improving the assembly efficiency of the main beam and the cross beam.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A modular building connection node, used for positioning and connecting a main beam and a cross beam, comprises a frame, the frame has a first side wall, a plurality of positioning holes are longitudinally arranged on the first side wall, and a positioning assembly is arranged at a position corresponding to the positioning holes in the frame;

[0007] The positioning assembly includes a movable rod capable of passing through the positioning hole, a driving block fixed on the movable rod, a sliding block sleeved on the movable rod and located between the driving block and the first side wall, and a driving member for driving the movable rod to reset;

[0008] The first side wall is provided with a guide portion for the sliding block to slide and a positioning portion for limiting the position of the sliding block, and the driving block can drive the sliding block to cooperate with the positioning portion.

[0009] Preferably, the slider is provided with a mounting hole, in which a pin and a reset spring for driving the pin to reset are arranged, and a driving part is arranged on the driving block, and the driving part can penetrate into the mounting hole to drive the pin to extend out of the slider and cooperate with the positioning part.

[0010] Preferably, a driving spring is further provided in the mounting hole, and the driving unit drives the ball to move by compressing the driving spring.

[0011] Preferably, the end of the driving portion aligned with the mounting hole is tapered.

[0012] Preferably, the slider is made of ferromagnetic material, and the driving part is made of magnetic material.

[0013] Preferably, the frame further comprises a second side wall which is symmetrically arranged with the first side wall and is also provided with the positioning holes in the longitudinal direction, and the positioning components are also provided at positions corresponding to the positioning holes on the second side wall.

[0014] Preferably, the movable rods of the two opposite positioning assemblies are sleeved with bidirectional driving springs whose two ends respectively abut against the two driving blocks.

[0015] Preferably, a placement groove is provided on the side wall of the frame at a position corresponding to the positioning hole on the outer side.

[0016] Another object of the present invention is to provide a method for connecting a modular building connection node, which realizes the positioning connection of the above modular building connection node to the main beam and the cross beam, comprising the following steps:

[0017] Connection node assembly: installing each of the positioning components onto the frame;

[0018] Assembling the connection node with the main beam: insert the nut into the outer end of the movable rod located at the frame, then push the connection node toward the web of the main beam, and insert the movable rod into the corresponding bolt hole of the main beam;

[0019] Assembling the crossbeam and the main beam: align the bolt holes on the crossbeam with the corresponding movable rods, screw in the bolts and nuts and push back the movable rods to complete the positioning connection.

[0020] In one embodiment, the connection node assembly steps are specifically as follows:

[0021] The driving block is separated from the slider, and the slider is made to slide along the first side wall. During the sliding process, the movable rod is inserted into the corresponding positioning hole, and the slider is matched with the corresponding positioning portion.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention utilizes a movable rod to pass through a positioning hole to first position the nut. When the connection node is assembled to the main beam, the movable rod can also pass through the bolt hole on the main beam to achieve alignment between the nut and the bolt hole on the main beam. When assembling the crossbeam, the bolt hole on the crossbeam is used to align the position of the movable rod to quickly achieve alignment between the bolt hole on the crossbeam and the bolt hole on the main beam. Finally, the bolts are screwed on to push the movable rod back to complete the fixation of the main beam and the crossbeam, thereby greatly reducing the assembly efficiency of the main beam and the crossbeam.

[0024] 2. When there is a processing error in the bolt hole, the movable rod will float up and down in the positioning hole to adjust the error. Since the movable rod passes through the positioning hole, the nut, the bolt hole on the main beam and the bolt hole on the cross beam in sequence, that is, the nut, the bolt hole on the main beam and the bolt hole on the cross beam can always be coaxial, and the bolt also moves along the axial direction of the movable rod during the tightening process, so the bolt can be easily screwed in, solving the problem of assembly difficulty caused by the error.

[0025] 3. The present invention sets a slider to move the movable rod up and down to find the position of the positioning hole. Since the slider can only slide in the vertical direction on the frame, the slider can lead the movable rod to quickly find the position of the positioning hole, which reduces the installation difficulty of the connection node and improves the assembly efficiency.

[0026] 4. The positioning components of the present invention are arranged in pairs. The symmetrical positioning components are connected by a bidirectional driving spring. When assembled on the main beam, the movable rods of the two positioning components are moved inward by the extrusion of the main beam wing plate, and finally abut against each other. The movable rods abutting against each other play the function of reinforcing ribs, providing strength support for the wing plate of the main beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the connection node of the present invention;

[0028] Figure 2 A top cross-sectional view of the process of assembling the connection node of the present invention to the main beam;

[0029] Figure 3 for Figure 2 A magnified view of middle;

[0030] Figure 4 A schematic diagram of the structure of connecting the main beam and the cross beam using the connection node of the present invention;

[0031] Figure 5 A top view showing the connection between the main beam and the cross beam using the connection node of the present invention;

[0032] Figure 6 for Figure 5 Enlarged view of middle B;

[0033] Figure 7 It is a structural diagram of the framework;

[0034] Figure 8 It is a schematic diagram of the structure of the movable rod and the driving block assembly;

[0035] in:

[0036] 1. frame; 11. first side wall; 111. guide portion; 112. positioning portion; 12. positioning hole; 13. second side wall; 14. placement groove;

[0037] 2. Positioning assembly; 21. Active rod; 22. Driving block; 221. Driving unit; 23. Sliding block; 231. Mounting hole; 2311. Sinking table; 2312. Ring table; 232. Pin; 2321. Top plate; 233. Return spring; 234. Driving spring; 235. Baffle; 24. Bidirectional driving spring;

[0038] 100, main beam; 200, cross beam; 300, bolts; 400, nuts. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] like Figure 1-8 As shown, a modular building connection node includes a frame 1, the frame 1 has a first side wall 11, a plurality of positioning holes 12 are longitudinally arranged on the first side wall 11, and positioning components 2 are arranged at positions corresponding to the positioning holes 12 in the frame 1.

[0043] The positioning assembly 2 includes a movable rod 21 that can pass through the positioning hole 12, a driving block 22 fixed on the movable rod 21, a slider 23 sleeved on the movable rod 21 and located between the driving block 22 and the first side wall 11, and a driving member for driving the movable rod 21 to reset.

[0044] The first side wall 11 is provided with a guide portion 111 for the sliding block 23 to slide and a positioning portion 112 for limiting the position of the sliding block 23 . The driving block 22 can drive the sliding block 23 to cooperate with the positioning portion 112 .

[0045] In this embodiment, the spacing of the positioning holes 12 on the first side wall 11 matches the spacing of the bolt holes 300 on the main beam 100 (in actual processing, there will be a slight error in the hole diameter and spacing of the bolt holes 300 on the main beam 100). When the connecting node is assembled to the main beam 100, the movable rod 21 can pass through the positioning holes 12 and the bolt holes 300 on the main beam 100 in sequence.

[0046] In this embodiment, the slider 23 is sleeved on the movable rod 21 to drive the movable rod 21 to move up and down, so as to find the position of the positioning hole 12. Since the first side wall 11 is provided with a guide portion 111, the slider 23 can only slide up and down along the guide portion 111, so the slider 23 can lead the movable rod 21 to quickly find the position of the positioning hole 12, reducing the installation difficulty of the connection node and improving the assembly efficiency. Preferably, the guide portion 111 adopts a dovetail groove design, and the slider 23 is provided with a dovetail block matching the dovetail groove, and this design makes it difficult for the slider 23 to deviate.

[0047] In this embodiment, a positioning portion 112 is further provided on the first side wall 11. When the positioning assembly 2 is installed in place, the driving member can drive the movable rod 21 to reset, and at the same time drive the driving block 22 to move. Finally, the driving block 22 can drive the slider 23 to cooperate with the positioning portion 112 to achieve the locking of the slider 23. The driving block 22 and the movable rod 21 can be an integrated structure or an assembled structure, which is not specifically limited here.

[0048] By using the movable rod 21 to pass through the positioning hole 12 to first position the nut 400, when assembling the connection node to the main beam 100, the movable rod 21 can also pass through the bolt 300 hole on the main beam 100 to achieve the alignment of the nut 400 and the bolt 300 hole on the main beam 100. When assembling the crossbeam 200, the bolt 300 hole on the crossbeam 200 is used to align the position of the movable rod 21 to quickly achieve the alignment of the bolt 300 hole on the crossbeam 200 with the bolt 300 hole on the main beam 100. Finally, the bolt 300 is screwed on to push the movable rod 21 back to complete the fixation of the main beam 100 and the crossbeam 200.

[0049] In this embodiment, the aperture of the positioning hole 12 is slightly larger than the cross-sectional diameter of the movable rod 21. When there is a processing error in the bolt 300 hole, the movable rod 21 will float up and down in the positioning hole 12 to adjust the error. Since the movable rod 21 passes through the positioning hole 12, the nut 400, the bolt 300 hole on the main beam 100 and the bolt 300 hole on the cross beam 200 in sequence, that is, the nut 400, the bolt 300 hole on the main beam 100 and the bolt 300 hole on the cross beam 200 can always be coaxial, and the bolt 300 also moves along the axial direction of the movable rod 21 during the screwing process. Therefore, the bolt 300 can be easily screwed in, solving the problem of assembly difficulty caused by the error.

[0050] In some preferred embodiments, a mounting hole 231 is provided in the slider 23, a pin 232 and a reset spring 233 for driving the pin 232 to reset are provided in the mounting hole 231, a driving portion 221 is provided on the driving block 22, and the driving portion 221 can penetrate into the mounting hole 231 to drive the pin 232 to extend out of the slider 23 and cooperate with the positioning portion 112.

[0051] In this embodiment, the driving block 22 is a convex column structure that can penetrate into the mounting hole 231. When the driving block 22 pushes the pin 232 out of the slider 23, it will simultaneously compress the reset spring 233. When the driving block 22 moves in the opposite direction, the reset spring 233 will reset the pin 232. The positioning portion 112 is specifically a blind hole arranged in the guide portion 111. When the pin 232 is extended, it can be inserted into the blind hole to achieve locking.

[0052] In some preferred embodiments, a driving spring 234 is further disposed in the mounting hole 231 , and the driving portion 221 drives the ball 232 to move by compressing the driving spring 234 .

[0053] In this embodiment, a sink 2311 is provided at one end of the mounting hole 231 close to the first side wall 11, a top plate 2321 is provided on the end of the ball 232 close to the driving block 22, and two ends of the return spring 233 respectively abut against the top plate 2321 and the sink 2311; a ring platform 2312 is provided at one end of the mounting hole 231 away from the first side wall 11, and a baffle 235 is also provided in the mounting hole 231 between the ring platform 2312 and the top plate 2321, and two ends of the driving spring 234 abut against the top plate 2321 and the baffle 235.

[0054] Since the spacing of the positioning holes 12 is set according to the expected spacing, when the connecting node is assembled, the pin 232 can penetrate into the positioning portion 112. At this time, the driving portion 221 pushes the baffle 235 to compress the driving spring 234 to push the pin 232 to move, and simultaneously compress the reset spring 233; when there is a processing error in the bolt 300 hole of the main beam 100, when the connecting node is assembled on the main beam 100, the movable rod 21 will float up and down in the positioning hole 12 to adjust the error. During the floating process, the movable rod 21 will drive the sliding to move together. At this time, there is a height deviation between the pin 232 and the positioning portion 112, and it is impossible to penetrate into the positioning portion 112. At this time, the driving portion 221 can only push the baffle 235 to compress the driving spring 234, but cannot drive the pin 232 to move to compress the reset spring 233.

[0055] In some preferred embodiments, the end of the driving portion 221 aligned with the mounting hole 231 is tapered.

[0056] The conical design allows a gap to exist between the driving portion 221 and the mounting hole 231 , and the gap can make up for the floating height of the movable rod 21 , so that the driving portion 221 can always penetrate into the mounting hole 231 , ensuring that the driving block 22 and the slider 23 fit perfectly.

[0057] In some preferred embodiments, the slider 23 is made of ferromagnetic material, and the driving part 221 is made of magnetic material.

[0058] In this embodiment, the slider 23 can be made of iron or steel. During the assembly process, the connection node is quickly attracted to the slider 23 through the magnetic characteristics of the driving part 221, so that the pin 232 and the positioning part 112 are quickly locked.

[0059] In some preferred embodiments, the frame 1 further comprises a second side wall 13 which is symmetrically arranged with the first side wall 11 and is also provided with positioning holes 12 in the longitudinal direction. Positioning components 2 are also provided corresponding to the positioning holes 12 on the second side wall 13 .

[0060] In this embodiment, the positioning components 2 are symmetrically arranged in groups, and the symmetrical positioning components 2 are connected by a two-way driving spring 24. The two-way driving spring 24 can be used as a driving part of the two symmetrical positioning components 2. When assembled on the main beam 100, through the extrusion of the wing plate of the main beam 100, the movable rods 21 of the two positioning components 2 are moved inward and finally abutted against each other. The movable rods 21 abutting against each other play the function of reinforcing ribs, providing strength support for the wing plate of the main beam 100.

[0061] Preferably, the main beam 100 is in an "I" shape, that is, a connection node can be assembled on the main beam 100 in front and behind the web respectively, and a plurality of groups of positioning holes 12 are arranged longitudinally along the first side wall 11 and the second side wall 13 of the frame 1, so that multiple bolt holes 300 can be positioned simultaneously, and the assembly efficiency is greatly improved.

[0062] In some preferred embodiments, a placement groove 14 is provided on the side wall of the frame 1 at a position corresponding to the positioning hole 12 on the outer side.

[0063] The placement groove 14 is specifically used to place the nut 400. After the movable rod 21 passes through the positioning hole 12, the nut 400 is sleeved on the movable rod 21. The movable rod 21 and the nut 400 always remain coaxial, which is convenient for subsequent docking with the bolt 300.

[0064] A method for connecting a modular building connection node, which realizes the positioning connection of the modular building connection node to the main beam 100 and the cross beam 200, comprises the following steps:

[0065] Connection node assembly: install each positioning component 2 onto the frame 1.

[0066] Specifically, the driving block 22 is manually separated from the slider 23 so that the slider 23 slides along the guide portion 111 on the first side wall 11 . During the sliding process, the movable rod 21 is inserted into the corresponding positioning hole 12 , and the slider 23 cooperates with the corresponding positioning portion 112 .

[0067] Since multiple connection nodes need to be installed on the frame 1, they need to be installed in a top-to-bottom or bottom-to-top order. When the movable rod 21 reaches the vicinity of the corresponding positioning hole 12, release the hand and use the magnetic attraction characteristics of the driving member and the driving block 22 and the slider 23 to quickly attract each other, and fine-tune up and down to allow the movable rod 21 to be inserted into the corresponding positioning hole 12. At the same time, the pin 232 is pushed and inserted into the positioning portion 112.

[0068] When the positioning components 2 are symmetrically arranged in groups, it is only necessary to compress the bidirectional driving spring 24 with both hands, separate the driving block 22 from the slider 23, and then operate according to the above method.

[0069] The connection node is assembled with the main beam 100 : the nut 400 is inserted into the outer end of the movable rod 21 located at the frame 1 , and then the connection node is pushed toward the web of the main beam 100 , and the movable rod 21 is inserted into the corresponding bolt 300 hole of the main beam 100 .

[0070] Specifically, when the connection node is pushed toward the web of the main beam 100, since the end of the movable rod 21 protrudes from the side wall of the frame 1, when pushed in, the wing plate of the main beam 100 will squeeze the end of the movable rod 21, causing the movable rod 21 to retreat. After being pushed in place, the position of the connection node is adjusted up and down (if the movable rod 21 is just aligned with the corresponding bolt 300 hole on the main beam 100 when pushed in, this step is not required), so that the movable rod 21 is aligned with the corresponding bolt 300 hole of the main beam 100. Under the action of the driving member, the movable rod 21 is reset and inserted into the corresponding bolt 300 hole of the main beam 100. In order to make it easier for the wing plate of the main beam 100 to squeeze the movable rod 21, the end of the movable rod 21 is specifically designed to be arc-shaped.

[0071] The cross beam 200 is assembled with the main beam 100: align the bolt 300 holes on the cross beam 200 with the corresponding movable rods 21, screw in the bolts 300 and cooperate with the nuts 400 while pushing back the movable rods 21 to complete the positioning connection.

[0072] When the positioning components 2 are symmetrically arranged in groups, the two symmetrical movable rods 21 are pushed back by the bolts 300 and pressed together, playing the role of reinforcing ribs and providing strength support for the wing plates of the main beam 100 .

[0073] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A method for connecting a modular building connection node, which is used to realize the positioning connection of the modular building connection node to the main beam and the cross beam, the modular building connection node includes a frame, characterized in that: The frame has a first side wall, a plurality of positioning holes are longitudinally arranged on the first side wall, and positioning components are arranged in the frame at positions corresponding to the positioning holes; The positioning assembly includes a movable rod capable of passing through the positioning hole, a driving block fixed on the movable rod, a sliding block sleeved on the movable rod and located between the driving block and the first side wall, and a driving member for driving the movable rod to reset; The first side wall is provided with a guide portion for the sliding block to slide and a positioning portion for limiting the position of the sliding block, the driving block can drive the sliding block to cooperate with the positioning portion, and includes the following steps: Connection node assembly: installing each of the positioning components onto the frame; Assembling the connection node with the main beam: insert the nut into the outer end of the movable rod located at the frame, then push the connection node toward the web of the main beam, and insert the movable rod into the corresponding bolt hole of the main beam; Assembling the crossbeam and the main beam: align the bolt holes on the crossbeam with the corresponding movable rods, screw in the bolts and nuts and push back the movable rods to complete the positioning connection.

2. The method for connecting modular building connection nodes according to claim 1, characterized in that: The specific steps for connecting node assembly are: The driving block is separated from the slider, and the slider is made to slide along the first side wall. During the sliding process, the movable rod is inserted into the corresponding positioning hole, and the slider is matched with the corresponding positioning portion.

3. The method for connecting modular building connection nodes according to claim 1, characterized in that: The slider is provided with a mounting hole, in which a pin and a reset spring for driving the pin to reset are arranged, and a driving part is arranged on the driving block, and the driving part can extend into the mounting hole to drive the pin to extend out of the slider and cooperate with the positioning part.

4. The method for connecting modular building connection nodes according to claim 3, characterized in that: A driving spring is also arranged in the mounting hole, and the driving part drives the ball to move by compressing the driving spring.

5. The method for connecting modular building connection nodes according to claim 3, characterized in that: The end of the driving portion aligned with the mounting hole is tapered.

6. The method for connecting modular building connection nodes according to claim 3, characterized in that: The slider is made of ferromagnetic material, and the driving part is made of magnetic material.

7. The method for connecting modular building connection nodes according to any one of claims 1 to 6, characterized in that: The frame further comprises a second side wall which is symmetrically arranged with the first side wall and is also provided with the positioning holes in the longitudinal direction. The positioning components are also correspondingly arranged at the positions of the positioning holes on the second side wall.

8. The method for connecting modular building connection nodes according to claim 7, characterized in that: The movable rods of the two opposite positioning assemblies are sleeved with bidirectional driving springs whose two ends respectively abut against the two driving blocks.

9. The method for connecting modular building connection nodes according to claim 7, characterized in that: A placement groove is arranged on the side wall of the frame at a position corresponding to the positioning hole on the outer side.

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