A special-shaped column node connection structure for assembled buildings

Abstract

The present invention discloses a special-shaped column node connection structure for prefabricated buildings, which belongs to the technical field of prefabricated buildings, and comprises: a support plate and a connection plate, wherein the support plate and the connection plate fix the special-shaped column or beam between the support plate and the connection plate by bolts; two symmetrically arranged slide grooves are arranged in the connection plate, threaded holes matching with the bolts are arranged in the slide grooves, and an adjustment hole is arranged between the two slide grooves, a limit block is slidably installed in the slide groove, an elastic member is fixedly connected between the limit block and the inner wall of the adjacent slide groove, a driving rod extending into the adjustment hole is fixedly connected to the limit block near the adjustment hole side, an arc-shaped notch is arranged on the limit block, and an annular groove matching with the arc-shaped notch is arranged on the bolt; an adjustment rod is axially slidably installed on the support plate, and the adjustment rod extends to the inner end of the adjustment hole and a driving block is fixedly arranged. The present invention reduces the precision requirements for the connection structure components and the precision requirements during the installation process.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated buildings, and in particular relates to a special-shaped column node connection structure for prefabricated buildings. Background Art

[0002] Prefabricated buildings refer to the process of transporting building components and accessories that have been processed and manufactured in factories to construction sites, where they are assembled and constructed using lifting equipment.

[0003] Especially when installing special-shaped column nodes, high-strength bolts and nuts are generally used for connection. When the special-shaped columns are fastened by bolts, after the bolts are fastened to the special-shaped columns, when the bolts are subjected to external forces such as impact, vibration or shock, the uneven stress of the bolts leads to a reduction in the force transmission friction surface, causing the bolts to have a small displacement in the bolt hole. When the bolts are subjected to the external force of reciprocating loads for a long time, they are easily damaged, resulting in the bolts being loosely clamped, and even having the risk of falling off, increasing the safety hazards during the construction process.

[0004] In the prior art, a Chinese patent with announcement number CN118187294B discloses a special-shaped column node connection structure for prefabricated buildings. The positioning rod and the positioning assembly cooperate to lock two adjacent bolts to prevent the bolts from falling off. However, when the above technology is implemented, the positioning rod is first installed, and there are strict precision requirements for the pre-installation depth of the positioning rod. If the pre-installation depth of the positioning rod is deep, the clamping rod will extend into the threaded hole to block the bolt, and it will be difficult to remove the positioning rod after blocking; and when it is not blocked, it is also difficult to achieve the alignment of the clamping rod and the clamping groove in the threaded hole where the bolt rotates. This puts strict requirements on the precision requirements of the overall structural components and the installation process.

[0005] Therefore, it is necessary to provide a special-shaped column node connection structure for prefabricated buildings to solve the above problems. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a special-shaped column node connection structure for prefabricated buildings, which is used to solve the problems of high standards for component accuracy and installation process of the overall connection structure in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides a special-shaped column node connection structure for assembled buildings, comprising: a support plate and a connecting plate for fixedly connecting the special-shaped column and the cross beam, wherein the support plate and the connecting plate fix the special-shaped column or the cross beam between the support plate and the connecting plate by bolts; a slide groove group is arranged in the connecting plate, and the slide groove group comprises two symmetrically arranged slide grooves, wherein the slide grooves are provided with threaded holes matched with the bolts, and an adjustment hole is arranged between the two slide grooves, and a limit block is slidably installed in the slide groove, and an elastic member is fixedly connected between the limit block and the inner wall of the adjacent slide groove, and the limit block is fixedly connected with a member extending to A driving rod is installed in the adjusting hole and can slide in the radial direction of the adjusting hole, the limit block is provided with an arc-shaped notch, and the bolt is provided with an annular groove matching the arc-shaped notch, and the connection or disengagement of the arc-shaped notch and the annular groove can lock or unlock the axial displacement of the bolt; an adjusting rod is axially slidably installed on the support plate, and the adjusting rod can slide along the axial direction of the adjusting hole to extend into the adjusting hole, and a driving block is fixedly provided at the inner end of the adjusting rod extending to the adjusting hole, and rotating the driving block can make the driving rod slide radially along the adjusting hole to drive the limit block to slide so that the arc-shaped notch is connected or disengaged from the annular groove.

[0009] Furthermore, the driving block is provided with a first side wall and a second side wall, the distance between the first side wall and the center of the adjusting hole is greater than the distance between the second side wall and the center of the adjusting hole, the driving rod extending into the adjusting hole can abut against the first side wall or the second side wall of the driving block, and the driving rod abutting against the first side wall of the driving block is converted to abutting against the second side wall of the driving block, so that the driving rod can slide radially along the adjusting hole.

[0010] Furthermore, two limit blocks are slidably installed in the slide groove, and the two limit blocks are symmetrically arranged about the axis of the threaded hole. Gears are rotatably installed on the opposite side walls in the slide groove, and the opposite side walls on the limit blocks are fixedly connected with racks meshing with the gears. The two racks on the same side of the two limit blocks are centrally symmetrically arranged about the center of the gear. Sliding one of the two limit blocks can make the two limit blocks slide relative to each other to close or disengage, and when the two limit blocks are closed, the two arc-shaped notches can form a circular hole that matches the annular groove.

[0011] Further, the adjusting rod includes a driving block and a connecting rod coaxially fixedly connected to the driving block, the connecting rod is provided with a threaded sleeve for limiting rotation away from the driving block end, the threaded sleeve is arranged on the connecting rod, the threaded sleeve is provided with an arc-shaped limiting groove, the connecting rod is fixedly connected with an operating rod capable of extending out of the arc-shaped limiting groove, the operating rod is limitedly slidably installed in the arc-shaped limiting groove, the special-shaped column and the cross beam are provided with limiting holes matching the driving block, the support plate is provided with a connecting hole threadedly connected to the threaded sleeve, the threaded sleeve and the connecting hole are threadedly connected to each other, and when the threaded sleeve abuts against the special-shaped column or the cross beam, the driving block slides out of the limiting hole into the adjusting hole.

[0012] Furthermore, a fixing rod is fixedly provided on one side of the connecting plate, and the special-shaped columns, the cross beams and the supporting plates are all provided with sockets that cooperate with the fixing rod.

[0013] Furthermore, the operating rod rotates 90° along the arc-shaped limiting sliding groove to enable the driving block to rotate from the second side wall abutting against the driving rod to the first side wall abutting against the driving rod.

[0014] A construction method for a special-shaped column node connection structure for an assembled building, comprising the following steps:

[0015] S1: Install the connection structure located at the lower end surface of the crossbeam, insert the fixing rod on the connection plate located on the first side wall of the special-shaped column into the insertion hole on the special-shaped column, and then connect the insertion hole on the support plate located on the second side wall of the special-shaped column with the fixing rod to fix the position of the connection plate and the support plate;

[0016] S2: Screw the bolt from the support plate into the threaded hole, then insert the adjustment rod from the connecting hole, and extend the drive block into the limiting hole, then rotate the threaded sleeve to drive the drive block to move in the direction close to the adjusting hole, until the threaded sleeve is completely screwed into the connecting hole and abuts against the special-shaped column, at this time the drive block moves out of the limiting hole to the adjusting hole, and then rotate the operating rod to rotate the connecting rod so that the drive block rotates from the second side wall abutting against the drive rod to the first side wall abutting against the drive rod;

[0017] S3: According to steps S1 to S2, the connection structure located on the upper end surface of the beam is installed.

[0018] The beneficial effects of the present invention are:

[0019] The present invention can connect or disengage the arc-shaped notch with the annular groove to lock or unlock the axial displacement of the bolt by rotating the adjusting rod, which is convenient for installation and disassembly and reduces the precision requirements on the connection structure components and the precision requirements during the installation process.

[0020] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0022] Figure 1 It is a schematic diagram of the installation of the connection structure, the special-shaped column and the crossbeam according to an embodiment of the present invention;

[0023] Figure 2 It is an exploded view of the connection structure installation of an embodiment of the present invention;

[0024] Figure 3 It is an installation cross-sectional view of the connection structure of an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the connection between the adjusting rod and the connecting plate according to an embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the structure of the adjusting rod according to an embodiment of the present invention.

[0027] The markings in the accompanying drawings are as follows: special-shaped column 1, limiting hole 101, plug hole 102, cross beam 2, support plate 3, connecting hole 301, bolt 4, annular groove 401, connecting plate 5, slide groove 501, threaded hole 502, adjustment hole 503, limiting block 504, elastic member 505, driving rod 506, arc-shaped notch 507, fixing rod 508, gear 509, rack 510, adjusting rod 6, driving block 601, first side wall 6011, second side wall 6012, connecting rod 602, threaded sleeve 603, arc-shaped limiting slide groove 604, operating rod 605. DETAILED DESCRIPTION

[0028] like Figure 1~Figure 5 As shown, the present invention provides a node connection structure of a special-shaped column for an assembled building, comprising: a support plate 3 for fixedly connecting a special-shaped column 1 and a cross beam 2, the support plate 3 being L-shaped, a first side plate of the support plate 3 being fixedly connected to the special-shaped column 1 by bolts 4, a second side plate of the support plate 3 being fixedly connected to the cross beam 2 by bolts 4, a connecting plate 5 matching with the supporting plate 3 being installed on the side of the special-shaped column 1 and the cross beam 2 away from the support plate 3, and the special-shaped column 1 and the cross beam 2 being fixed between the support plate 3 and the connecting plate 5 by bolts 4;

[0029] The connecting plate 5 is provided with a group of slide grooves 501, and the group of slide grooves 501 includes two symmetrically arranged slide grooves 501, a threaded hole 502 cooperating with the bolt 4 is provided in the slide groove 501, an adjustment hole 503 is provided between the two slide grooves 501, a limit block 504 is slidably installed in the slide groove 501, an elastic member 505 is fixedly connected between the limit block 504 and the inner wall of the adjacent slide groove 501, a driving rod 506 extending into the adjustment hole 503 and capable of sliding along the radial direction of the adjustment hole 503 is fixedly connected to the limit block 504 near the adjustment hole 503, an arc-shaped notch 507 is provided on the limit block 504, and an annular groove 401 cooperating with the arc-shaped notch 507 is provided on the bolt 4, and the arc-shaped notch 507 is connected or separated from the annular groove 401 to lock or unlock the axial displacement of the bolt 4;

[0030] An adjusting rod 6 is axially slidably installed on the support plate 3, and the adjusting rod 6 can slide along the axial direction of the adjusting hole 503 to extend into the adjusting hole 503. The adjusting rod 6 extends to the inner end of the adjusting hole 503 and a driving block 601 is fixed thereon. A first side wall 6011 and a second side wall 6012 are provided on the driving block 601. The distance between the first side wall 6011 and the center of the adjusting hole 503 is greater than the distance between the second side wall 6012 and the center of the adjusting hole 503. The driving rod 506 extends into the adjusting hole 503 and can abut against the first side wall 6011 or the second side wall 6012 of the driving block 601. Rotating the driving block 601 can make the driving rod 506 slide radially along the adjusting hole 503 to drive the limit block 504 to slide so that the arc-shaped notch 507 is connected to or disconnected from the annular groove 401.

[0031] In the present solution, two groups of connection structures are provided. When the special-shaped column 1 and the cross beam 2 are fixed by the connection structure, one group is fixed to the lower end surface where the cross beam 2 is connected to the special-shaped column 1, and the other group is fixed to the upper end surface where the cross beam 2 is connected to the special-shaped column 1. First, the connection plate 5 is pre-installed on the side wall of the special-shaped column 1 away from the support plate 3, so that the threaded hole 502 on the connection plate 5 is coaxially matched with the hole position on the special-shaped column 1 and the support plate 3, and then the bolt 4 is passed through the support plate 3 and the special-shaped column 1 and extends into the threaded hole 502 to complete the fixation of the support plate 3 and the connection plate 5, so that the special-shaped column 1 or the cross beam 2 is fixed between the support plate 3 and the connection plate 5. In the initial state, the limit block 504 in the slide groove 501 is close to the adjustment hole 50 under the action of the elastic member 505. 3, the elastic member 505 includes a compression spring, so that the arc-shaped notch 507 avoids the threaded hole 502, so that the bolt 4 can extend into the threaded hole 502, and after the bolt 4 is threadedly connected with the threaded hole 502, the annular groove 401 on the bolt 4 is located in the slide groove 501, and then the adjusting rod 6 passes through the support plate 3 and the special-shaped column 1 or the crossbeam 2, so that the driving block 601 at the end of the adjusting rod 6 extends into the adjusting hole 503, and then the adjusting rod 6 is rotated to rotate the driving block 601, so that the driving rod 506 abutting against the second side wall 6012 of the driving block 601 slides to abut against the first side wall 6011 of the driving block 601, so that the limit block 504 slides, so that the arc-shaped notch 507 is connected with the annular groove 401 to lock the axial displacement of the bolt 4.

[0032] In this solution, by rotating the adjusting rod 6, the arc notch 507 can be connected or disengaged from the annular groove 401 to lock or unlock the axial displacement of the bolt 4, which facilitates installation and disassembly and reduces the precision requirements on the connecting structure components and the precision requirements during the installation process.

[0033] In one embodiment of the present invention, two limit blocks 504 are slidably installed in the slide groove 501, and the two limit blocks 504 are symmetrically arranged about the threaded hole 502. Gears 509 are rotatably installed on the opposite side walls in the slide groove 501. The opposite side walls on the limit blocks 504 are fixedly connected with racks 510 meshing with the gears 509. The two racks 510 on the same side of the two limit blocks 504 are centrally symmetrically arranged about the center of the gear 509. Sliding one of the two limit blocks 504 can make the two limit blocks 504 slide relative to each other to close or disengage. When the two limit blocks 504 are closed, the two arc-shaped notches 507 can form circular holes that match the annular groove 401.

[0034] In this solution, when the driving block 601 rotates to drive the driving rod 506 to move so that the limit block 504 can slide, the two limit blocks 504 in the same slide groove 501 can slide synchronously, so that when the two limit blocks 504 are closed, the two arc-shaped notches 507 can form a circular hole that cooperates with the annular groove 401, thereby improving the locking ability of the bolt 4.

[0035] In one embodiment of the present invention, the adjusting rod 6 includes a driving block 601 and a connecting rod 602 coaxially fixedly connected to the driving block 601, the connecting rod 602 is provided with a threaded sleeve 603 for limited rotation away from the end of the driving block 601, the threaded sleeve 603 is sleeved on the connecting rod 602, the threaded sleeve 603 is provided with an arc-shaped limiting groove 604, the connecting rod 602 is fixedly connected with an operating rod 605 capable of extending the arc-shaped limiting groove 604, the operating rod 605 is limitedly slidably installed in the arc-shaped limiting groove 604, the special-shaped column 1 and the crossbeam 2 are provided with a limiting hole 101 cooperating with the driving block 601, the support plate 3 is provided with a connecting hole 301 threadedly connected to the threaded sleeve 603, the threaded sleeve 603 and the connecting hole 301 are threadedly connected to each other. When the threaded sleeve 603 abuts against the special-shaped column 1 or the crossbeam 2, the driving block 601 slides out of the limiting hole 101 to the adjusting hole 503.

[0036] In this solution, after the support plate 3 and the connecting plate 5 are fixed by the bolts 4, the adjusting rod 6 is inserted along the connecting hole 301, and the driving block 601 is located in the limiting hole 101. The adjusting rod 6 is rotated to move the adjusting rod 6 toward the adjusting hole 503 until the threaded sleeve 603 is completely rotated into the connecting hole 301 and abuts against the special-shaped column 1 or the crossbeam 2. At this time, the threaded sleeve 603 cannot be rotated, and the driving block 601 moves out of the limiting hole 101 to the adjusting hole 503. Then, by rotating the operating rod 605, the connecting rod 602 is rotated so that the driving block 601 is rotated from the second side wall 6012 abutting against the driving rod 506 to the first side wall 6011 abutting against the driving rod 506. The operating rod 605 rotates 90° along the arc-shaped limiting slot 604 to rotate the driving block 601 from the second side wall 6012 abutting against the driving rod 506 to the first side wall 6011 abutting against the driving rod 506.

[0037] In one embodiment of the present invention, a fixing rod 508 is fixedly provided on the connecting plate 5 near the side of the special-shaped column 1 , and a socket 102 cooperating with the fixing rod 508 is provided on the special-shaped column 1 , the cross beam 2 and the supporting plate 3 .

[0038] In this solution, fixing rods 508 are provided at the four corners of the connecting plate 5. The fixing rods 508 are passed through the sockets 102 on the special-shaped column 1 or the beam 2, so that the connecting plate 5 can be pre-supported on the special-shaped column 1 or the beam 2, and then the sockets 102 on the support plate 3 are connected to the fixing rods 508 to realize the pre-installation of the connecting plate 5 and the support plate 3, so that there is no need to use tools to support the connecting plate 5 and the support plate 3 when fixing with bolts 4.

[0039] A construction method for a special-shaped column node connection structure for an assembled building, comprising the following steps:

[0040] S1: Install the connection structure located at the lower end surface of the crossbeam 2, insert the fixing rod 508 on the connecting plate 5 located on the first side wall of the special-shaped column 1 into the insertion hole 102 on the special-shaped column 1, and then connect the insertion hole 102 on the supporting plate 3 located on the second side wall of the special-shaped column 1 with the fixing rod 508 to fix the position of the connecting plate 5 and the supporting plate 3;

[0041] S2: Screw the bolt 4 from the support plate 3 into the threaded hole 502, then insert the adjusting rod 6 from the connecting hole 301, and extend the driving block 601 into the limiting hole 101, and then rotate the threaded sleeve 603 to drive the driving block 601 to move in the direction close to the adjusting hole 503, until the threaded sleeve 603 is completely screwed into the connecting hole 301 and abuts against the special-shaped column 1, at this time, the driving block 601 moves out of the limiting hole 101 to the adjusting hole 503, and then rotate the operating rod 605 to rotate the connecting rod 602 so that the driving block 601 rotates from the second side wall 6012 abutting against the driving rod 506 to the first side wall 6011 abutting against the driving rod 506;

[0042] S3: According to steps S1 to S2, the connection structure located on the upper end surface of the beam 2 is installed.

[0043] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A special-shaped column node connection structure for assembled buildings, comprising: A support plate and a connecting plate used for fixing and connecting a special-shaped column and a cross beam, characterized in that: the support plate is L-shaped, the first side plate of the support plate is fixedly connected to the special-shaped column by bolts, the second side plate of the support plate is fixedly connected to the cross beam by bolts, the special-shaped column and the cross beam are installed with a connecting plate matching the support plate on the side away from the support plate, and the support plate and the connecting plate fix the special-shaped column or the cross beam between the support plate and the connecting plate by bolts; The connecting plate is provided with a slide groove group, and the slide groove group includes two symmetrically arranged slide grooves, the slide groove is provided with a threaded hole matched with a bolt, an adjustment hole is provided between the two slide grooves, a limit block is slidably installed in the slide groove, an elastic member is fixedly connected between the limit block and the inner wall of the adjacent slide groove, the limit block is fixedly connected with a driving rod extending into the adjustment hole and capable of sliding along the radial direction of the adjustment hole near the adjustment hole, an arc-shaped notch is provided on the limit block, and an annular groove matched with the arc-shaped notch is provided on the bolt, and the arc-shaped notch is connected or separated from the annular groove to lock or unlock the axial displacement of the bolt; An adjusting rod is axially slidably mounted on the support plate, and the adjusting rod can slide along the axis direction of the adjusting hole to extend into the adjusting hole. A driving block is fixedly arranged at the inner end of the adjusting rod extending to the adjusting hole. Rotating the driving block can make the driving rod slide radially along the adjusting hole to drive the limit block to slide so that the arc-shaped notch is connected to or separated from the annular groove. The driving block is provided with a first side wall and a second side wall, the distance between the first side wall and the center of the adjusting hole is greater than the distance between the second side wall and the center of the adjusting hole, the driving rod extends into the adjusting hole and can abut against the first side wall or the second side wall of the driving block, and the driving rod abuts against the first side wall of the driving block and then abuts against the second side wall of the driving block, so that the driving rod can slide radially along the adjusting hole; The adjusting rod comprises a driving block and a connecting rod coaxially fixedly connected with the driving block, the connecting rod is provided with a threaded sleeve for limited rotation away from the driving block end, the threaded sleeve is sleeved on the connecting rod, the threaded sleeve is provided with an arc-shaped limiting sliding groove, the connecting rod is fixedly connected with an operating rod capable of extending out of the arc-shaped limiting sliding groove, the operating rod is limitedly slidably installed in the arc-shaped limiting sliding groove, the special-shaped column and the cross beam are provided with a limiting hole matched with the driving block, the supporting plate is provided with a connecting hole threadedly connected with the threaded sleeve, the threaded sleeve and the connecting hole are threadedly connected to each other, and when the threaded sleeve abuts against the special-shaped column or the cross beam, the driving block slides out of the limiting hole into the adjusting hole; The operating rod is rotated 90 degrees along the arc-shaped limiting sliding groove to enable the driving block to rotate from the second side wall abutting against the driving rod to the first side wall abutting against the driving rod.

2. The special-shaped column node connection structure for prefabricated buildings according to claim 1, characterized in that: Two limit blocks are slidably installed in the slide groove, and the two limit blocks are symmetrically arranged about the axis of the threaded hole. Gears are rotatably installed on the opposite side walls in the slide groove, and the opposite side walls on the limit blocks are fixedly connected with racks meshing with the gears. The two racks on the same side of the two limit blocks are centrally symmetrically arranged about the center of the gear. Sliding one of the two limit blocks can make the two limit blocks slide relative to each other to close or disengage, and when the two limit blocks are closed, the two arc-shaped notches can form a circular hole that matches the annular groove.

3. The special-shaped column node connection structure for prefabricated buildings according to claim 2, characterized in that: A fixing rod is fixedly arranged on one side of the connecting plate, and the special-shaped columns, the cross beams and the supporting plates are all provided with insertion holes matched with the fixing rod.

4. The construction method of the special-shaped column node connection structure for prefabricated buildings according to claim 3, characterized in that: The following steps are involved: S1: Install the connection structure located at the lower end surface of the crossbeam, insert the fixing rod on the connection plate located on the first side wall of the special-shaped column into the insertion hole on the special-shaped column, and then connect the insertion hole on the support plate located on the second side wall of the special-shaped column with the fixing rod to fix the position of the connection plate and the support plate; S2: Screw the bolt from the support plate into the threaded hole, then insert the adjustment rod from the connecting hole, and extend the drive block into the limiting hole, then rotate the threaded sleeve to drive the drive block to move in the direction close to the adjusting hole, until the threaded sleeve is completely screwed into the connecting hole and abuts against the special-shaped column, at this time the drive block moves out of the limiting hole to the adjusting hole, and then rotate the operating rod to rotate the connecting rod so that the drive block rotates from the second side wall abutting against the drive rod to the first side wall abutting against the drive rod; S3: According to steps S1 to S2, the connection structure located on the upper end surface of the beam is installed.

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