Column-column connecting joint

Abstract

The utility model discloses a column-column connecting node, which belongs to the technical field of building structures and comprises a first column body and a second column body, a tenon is arranged on the first column body, a mortise matched with the tenon is arranged on the second column body, a first inserting hole and a second inserting hole which correspond to each other are respectively arranged in the tenon and the mortise, and the first inserting hole and the second inserting hole are arranged in the first column body and the second column body respectively. And a connecting rod structure is jointly inserted into the first inserting hole and the second inserting hole. According to the scheme, the tenon and mortise structures are arranged at the ends of the two column bodies for primary connection, the inserting hole structures are arranged in the tenon range and the mortise range, the two column bodies are secondarily connected and fixed through the connecting rod, the connecting strength between the first column body and the second column body is improved, the connecting mode is simple, the manufacturing cost is low, and the structure is simple. And meanwhile, as the tenons, the mortises and the connecting rods are all located in the column bodies, the attractive degree of connection between the column bodies is improved.

Description

Technical Field

[0001] The utility model relates to a connection structure of glued laminated wood columns, and more specifically, to a column-column connection node. Background Art

[0002] With the continuous increase in the demand for wooden structure buildings, the joint connection forms of glued laminated wood beams and columns are gradually pursuing convenience and aesthetics. Due to the characteristics of the glued laminated wood material itself, hardware connections are often used for beam-column joints, and bolts and pins are used for reinforcement at the same time. However, with the increase in the size of current wooden structure buildings, the size of glued laminated wood columns has gradually increased, and its length is limited by the processing method and transportation. Its length is generally limited to about ten meters. Therefore, the connection method between glued laminated wood columns has become one of the important connection nodes of glued laminated wood structures. Currently, the connection between columns often uses the node form of outsourcing hardware, and then bolts between plates are used for fastening, which more weakens the strength of the wood end, and the exposed steel plates are extremely unsightly; there are also some connection forms that make the structure complex and the cost is relatively high.

[0003] For example: Chinese Patent Publication No. CN212388757U, Publication Date: January 22, 2021, the name of the utility model is a detachable mortise and tenon self-locking column-column connection node. This application discloses a connection node form between columns, which can be used for the connection of corner module units, edge module units and middle module units. The lower module unit is welded with an inner box through a connecting plate, and the lower end of the module column of the upper module unit is welded with an outer box. This solution can realize building industrialization and has the advantages of accelerating the construction progress, energy conservation and environmental protection; however, the structure of this solution is relatively complex, the cost is relatively high, and the connection form is exposed to the outside, reducing the aesthetics. Summary of the Utility Model

[0004] The utility model overcomes the problems of complex and unsightly structure of the existing column-column connection node, provides a column-column connection node. This solution avoids a complex structure, adopts a mortise and tenon form for connection, and improves the connection strength by setting a connection structure inside. Most of the structure is hidden inside the column body, with a simple structure and high aesthetics.

[0005] To solve the above technical problems, the present utility model adopts the following technical solutions: A column-column connection node includes a first column body and a second column body. A tenon is provided on the first column body, and a mortise matching the tenon is provided on the second column body. A first insertion hole and a second insertion hole corresponding to each other are respectively provided in the tenon and the mortise. A connecting rod structure is commonly inserted into the first insertion hole and the second insertion hole. In this solution, a tenon and mortise structure is provided at the ends of the two column bodies for preliminary connection, and an insertion hole structure is provided within the range of the tenon and the range of the mortise. The two column bodies are secondarily connected and fixed through a connecting rod, improving the connection strength between the first column body and the second column body. The connection method is simple and the cost is relatively low. At the same time, since the tenon, the mortise, and the connecting rod are all located inside the column body, the aesthetic degree of the connection between the column bodies is improved. In addition, through the tenon and mortise connection form, it is convenient to position the two column bodies in the vertical direction and avoid transverse damage.

[0006] Preferably, a first positioning hole is provided on the first column body, and a first matching hole corresponding to the first positioning hole is provided on the connecting rod. The first positioning hole and the first matching hole are positioned by a first positioning member. After the connecting rod is inserted into the first insertion hole in the first column body, the first positioning hole on the first column body and the first matching hole on the connecting rod can be aligned with each other, and then the connecting rod and the first column body can be fixedly connected together through the first positioning member, improving the connection strength between the two.

[0007] Preferably, a second positioning hole is provided on the second column body, and a second matching hole corresponding to the second positioning hole is provided on the connecting rod. The second positioning hole and the second matching hole are positioned by a second positioning member. After the connecting rod is inserted into the second insertion hole in the second column body, the second positioning hole on the second column body and the second matching hole on the connecting rod can be aligned with each other, and then the connecting rod and the second column body can be fixedly connected together through the second positioning member, improving the connection strength between the two.

[0008] Preferably, there are two groups of the first positioning holes, and the two groups of the first positioning holes are arranged crosswise and are not coplanar. In order to improve the connection strength between the connecting rod and the first column body, the first positioning holes need to be arranged in two directions, so two groups of first positioning holes are provided. And in order to avoid interference between the first positioning holes in two directions and ensure sufficient strength of the first column body, the first positioning holes in two different directions cannot be arranged on the same plane.

[0009] Preferably, there are two sets of the second positioning holes, and the two sets of the second positioning holes are arranged crosswise and are not coplanar. To improve the connection strength between the connecting rod and the second cylinder, the second positioning holes need to be arranged in two directions, so two sets of second positioning holes are provided. And to avoid interference between the second positioning holes in two directions and ensure sufficient strength of the second cylinder, the second positioning holes in two different directions cannot be arranged on the same plane.

[0010] Preferably, the number of the first insertion holes and the second insertion holes is not less than 3. To ensure the connection strength between the first cylinder and the second cylinder, the number of the first insertion holes and the second insertion holes cannot be less than three, and generally four are set as the best.

[0011] Preferably, groove bodies along the axial direction of the holes are provided inside the first insertion holes and the second insertion holes. The axial groove body structures on the first insertion holes and the second insertion holes can provide a certain assembly gap for the connecting rod, avoiding large stress inside the first insertion holes and the second insertion holes after the connecting rod is inserted into the first insertion holes and the second insertion holes, which may damage the hole structures or the structures of the first cylinder and the second cylinder.

[0012] Preferably, at least one end of the connecting rod is provided with a positioning piece adapted to the groove body. To facilitate the alignment of the first mating hole or the second mating hole on the connecting rod with the first positioning hole on the first cylinder or the second positioning hole on the second cylinder, a positioning piece structure can be provided on the connecting rod. Through the reasonable design of the positioning piece and the groove body, when the positioning piece is engaged with the groove body, the mating holes on the connecting rod and the positioning holes on the cylinder can be in an aligned state. In addition, the position of the positioning piece is preferably set at the end of the connecting rod because there are mating holes in the middle of the connecting rod, and the strength at the middle position is lower than that at other positions, so it is not suitable to set the positioning piece structure again.

[0013] Preferably, a fillet is provided on the tenon head. The fillet structure on the tenon head can reduce the stress on the end face of the tenon head, avoid damage to the end face of the tenon head, and at the same time, with the fillet structure provided, it also makes it easier for the tenon head to fit into the mortise structure.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: (1) It is convenient for positioning in the vertical direction between the first cylinder and the second cylinder, with relatively high connection strength and can avoid cross-grain damage of the cylinder; (2) The connecting rod is used for connection, and the connecting rod and the positioning member are located inside the end of the wooden column and can bear the longitudinal pressure; (3) The structure is simple, the manufacturing cost is relatively low, it is convenient to hide the connecting piece, and the aesthetic degree of the cylinder connection is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded view of the present utility model.

[0016] Figure 2 This is a schematic diagram of the connection state of the present utility model.

[0017] Figure 3 This is a schematic diagram of the end of the first column body of the present utility model.

[0018] Figure 4 This is a schematic diagram of the connecting rod of the present utility model.

[0019] In the figure: 1. First column body, 11. First positioning hole, 2. Second column body, 21. Second positioning hole, 3. Tenon head, 31. First insertion hole, 4. Mortise, 41. Second insertion hole, 5. Connecting rod, 51. First mating hole, 52. Second mating hole, 53. Positioning piece, 6. First positioning member, 7. Second positioning member, 8. Groove body. Specific embodiments

[0020] The following will further specifically illustrate the technical solutions of the present utility model through specific embodiments in conjunction with the drawings.

[0021] Embodiment 1: As Figure 1 and Figure 2 shown, a column-column connection node includes a first column body 1 and a second column body 2. The cross-sections of the first column body 1 and the second column body 2 are square. A tenon head 3 structure is provided on one end face of the first column body 1. The tenon head 3 structure is cylindrical. A mortise 4 is provided on the second column body 2. The mortise 4 is a cylindrical groove structure. Among them, the radial dimension of the mortise 4 is slightly larger than the radial dimension of the tenon head 3 to ensure that the tenon head 3 can be fitted into the mortise 4. Through the cooperation of the tenon head 3 and the mortise 4, the positioning of the first column 1 and the second column body 2 in the vertical direction (or in the axial direction of the column body) can be realized; and compared with the traditional column-column connection method, the cooperation of the tenon head 3 and the mortise 4 also increases the contact area between the end faces of the first column body 1 and the second column body 2, improving the integrity and stability of the connection between the first column body 1 and the second column body 2.

[0022] First insertion holes 31 and second insertion holes 41 are respectively provided within the ranges of the tenon head 3 and the mortise 4. The first insertion holes 31 and the second insertion holes 41 are both cylindrical hole structures, which can avoid generating large concentrated stresses inside the first column body 1 and the second column body 2. As Figure 1As shown, the number of the first insertion holes 31 and the second insertion holes 41 is four each, and the four first insertion holes 31 and the four second insertion holes 41 are located at the four corners of a square; and the four first insertion holes 31 correspond to the four side surfaces of the first cylinder 1, and the four second insertion holes 41 correspond to the four side surfaces of the second cylinder 2; or it can be considered that the positions of the four first insertion holes 31 respectively correspond to the four corners of the first cylinder 1, so that two adjacent first insertion holes 31 correspond to one side surface of the first cylinder 1; the positions of the four second insertion holes 41 respectively correspond to the four corners of the second cylinder 2, so that two adjacent second insertion holes 41 correspond to one side surface of the second cylinder 2.

[0023] Wherein, a chamfer structure is further provided on the end face circle of the tenon 3. The rounded corner structure on the tenon 3 can reduce the stress on the end face of the tenon 3 and avoid the damage of the end face of the tenon 3. At the same time, the rounded corner structure is provided, which also makes it easier for the tenon 3 to fit into the mortise 4 structure.

[0024] A connecting rod 5 is further provided in the first insertion hole 31 and the second insertion hole 41. The number of the connecting rods 5 is four. Each connecting rod 5 is inserted into the first insertion hole 31 of the first cylinder 1 and the second insertion hole 41 of the second cylinder 5 at the same time to enhance the connection strength between the first cylinder 1 and the second cylinder 2. It should be noted that in this embodiment, the connecting rod 5 adopts a steel bar structure, which can adapt to the pressure inside the first cylinder 1 and the second cylinder 2 and ensure that the connecting rod 5 is not damaged.

[0025] A first positioning hole 11 is provided on the first cylinder 1. The first positioning hole 11 penetrates from one side surface of the first cylinder 1 to the opposite side surface of the first cylinder 1; and the first positioning hole 11 is also communicated with the first insertion hole 31 on the first cylinder 1; two groups of first positioning holes 11 are provided, which are respectively located on the side surfaces of the first cylinder 1 in two vertical directions. Thus, after the connecting rod 5 is inserted into the first insertion hole 31, the connecting rod 5 can extend to the position where the first positioning hole 11 is located.

[0026] A second positioning hole 21 is provided on the second cylinder 2. The second positioning hole 21 penetrates from one side surface of the second cylinder 2 to the opposite side surface of the second cylinder 2; and the second positioning hole 21 is also communicated with the second insertion hole 41 on the second cylinder 2; two groups of second positioning holes 21 are provided, which are respectively located on the side surfaces of the second cylinder 2 in two vertical directions. Thus, after the connecting rod 5 is inserted into the second insertion hole 41, the connecting rod 5 can extend to the position where the second positioning hole 21 is located.

[0027] Then, a first mating hole 51 and a second mating hole 52 are provided on the connecting rod 5. The first mating hole 51 and the second mating hole 52 have the same specifications and are close to the middle position of the connecting rod 5, and are symmetrically arranged with respect to the middle position of the connecting rod 5. In this embodiment, the first positioning hole 11 on the first cylinder 1 and the second positioning hole 21 on the second cylinder 2 are also set to have the same specifications and are symmetrically arranged with respect to the mating end face of the first cylinder 1 and the second cylinder 2. Therefore, when actually using the connecting rod 5, it is not necessary to distinguish the two ends of the connecting rod 5; either end can be used to mate with the first cylinder 1 or the second cylinder 2.

[0028] After the connecting rod 5 is assembled into the first insertion hole 31 and the second insertion hole 41, the first mating hole 51 on the connecting rod 5 can exactly correspond to the first positioning hole 11 on the first cylinder 1, and the second mating hole 52 on the connecting rod 5 can exactly correspond to the second positioning hole 21 on the second cylinder 5. At this time, the first positioning member 6 can be used to connect and fix the first positioning hole 11 and the first mating hole 51, and the second positioning member 7 can be used to connect and fix the second positioning hole 21 and the second mating hole 52; thus, the connection and fixation of the first cylinder 1 and the second cylinder 2 can be completed. It should be noted that the first positioning member 6 and the second positioning member 7 can use a pin structure as a fastener or a bolt as a fastener.

[0029] It should also be noted that a total of two groups of first positioning holes 11 are provided. The two groups of first positioning holes 11 are respectively on two opposite faces of the first cylinder 1, so that the two groups of first positioning holes 11 are vertically arranged. By connecting and fixing the connecting rod 5 and the first cylinder 1 in two vertical directions, the connection strength between the connecting rod 5 and the first cylinder 1 can be improved; similarly, the same is true between the second cylinder 2 and the connecting rod 5; that is, the connection strength between the first cylinder 1 and the second cylinder 2 is comprehensively improved.

[0030] It should also be noted that each group of first positioning holes 11 has a total of four, and is arranged in two parallel rows up and down, with two first positioning holes 11 in each row. Relative to the other group of first positioning holes 11, the first positioning holes 11 in each row are stacked and staggered to avoid interference between the first positioning holes 11 on different groups and to ensure the structural strength of the first cylinder 1. Similarly, the design of the second positioning hole 21 is the same as that of the first positioning hole.

[0031] Embodiment 2: As Figures 1 to 4A column-column connection node as shown includes a first column 1 and a second column 2. The cross-sections of the first column 1 and the second column 2 are square. A tenon 3 structure is provided on one end face of the first column 1. The tenon 3 structure is cylindrical. A mortise 4 is provided on the second column 2. The mortise 4 is a cylindrical groove structure. Among them, the radial dimension of the mortise 4 is slightly larger than the radial dimension of the tenon 3 to ensure that the tenon 3 can be fitted into the mortise 4. Through the cooperation of the tenon 3 and the mortise 4, the positioning of the first column 1 and the second column 2 in the vertical direction (or in the axial direction of the column) can be realized; and compared with the traditional column-column connection method, the cooperation of the tenon 3 and the mortise 4 also increases the contact area between the end faces of the first column 1 and the second column 2, improving the integrity and stability of the connection between the first column 1 and the second column 2.

[0032] First insertion holes 31 and second insertion holes 41 are respectively provided within the range of the tenon 3 and the mortise 4. Both the first insertion holes 31 and the second insertion holes 41 are cylindrical hole structures, which can avoid generating large concentrated stresses inside the first column 1 and the second column 2. As Figure 1 shown, the number of both the first insertion holes 31 and the second insertion holes 41 is four, and the four first insertion holes 31 and the four second insertion holes 41 are all located at the four corners of a square; and the four first insertion holes 31 correspond to the four side positions of the first column 1, and the four second insertion holes 41 correspond to the four side positions of the second column 2; or it can be considered that the positions of the four first insertion holes 31 respectively correspond to the four corners of the first column 1, so that two adjacent first insertion holes 31 correspond to one side face of the first column 1; the positions of the four second insertion holes 41 respectively correspond to the four corners of the second column 2, so that two adjacent second insertion holes 41 correspond to one side face of the second column 2.

[0033] Among them, a chamfer structure is also provided on the end face circle of the tenon 3. The rounded corner structure on the tenon 3 can reduce the stress on the end face of the tenon 3, avoid the damage of the end face of the tenon 3, and at the same time, setting the rounded corner structure also makes it easier for the tenon 3 to be fitted into the mortise 4 structure.

[0034] Connecting rods 5 are also provided in the first insertion holes 31 and the second insertion holes 41. The number of the connecting rods 5 is four. Each connecting rod 5 is inserted into the first insertion hole 31 of the first column 1 and the second insertion hole 41 of the second column 5 at the same time to enhance the connection strength between the first column 1 and the second column 2. It should be noted that in this embodiment, the connecting rods 5 adopt steel bar structures, which can adapt to the pressure inside the first column 1 and the second column 2 and ensure that the connecting rods 5 are not damaged.

[0035] A first positioning hole 11 is provided on the first cylinder 1. The first positioning hole 11 penetrates from one side surface of the first cylinder 1 to the opposite side surface of the first cylinder 1. And the first positioning hole 11 is also communicated with a first insertion hole 31 on the first cylinder 1. Two groups of the first positioning holes 11 are provided, and are respectively located on the side surfaces of the first cylinder 1 in two perpendicular directions. Thus, after the connecting rod 5 is inserted into the first insertion hole 31, the connecting rod 5 can extend into the position where the first positioning hole 11 is located.

[0036] A second positioning hole 21 is provided on the second cylinder 2. The second positioning hole 21 penetrates from one side surface of the second cylinder 2 to the opposite side surface of the second cylinder 2. And the second positioning hole 21 is also communicated with a second insertion hole 41 on the second cylinder 2. Two groups of the second positioning holes 21 are provided, and are respectively located on the side surfaces of the second cylinder 2 in two perpendicular directions. Thus, after the connecting rod 5 is inserted into the second insertion hole 41, the connecting rod 5 can extend into the position where the second positioning hole 21 is located.

[0037] Then, a first mating hole 51 and a second mating hole 52 are provided on the connecting rod 5. The first mating hole 51 and the second mating hole 52 have the same specifications, and the first mating hole 51 and the second mating hole 52 are close to the middle position of the connecting rod 5 and are symmetrically arranged with respect to the middle position of the connecting rod 5. In this embodiment, the first positioning hole 11 on the first cylinder 1 and the second positioning hole 21 on the second cylinder 2 are also set to have the same specifications and are symmetrically arranged with respect to the mating end face of the first cylinder 1 and the second cylinder 2. Thus, when actually using the connecting rod 5, it is not necessary to distinguish the two ends of the connecting rod 5. Any end can be used to cooperate with the first cylinder 1 or the second cylinder 2.

[0038] After the connecting rod 5 is assembled into the first insertion hole 31 and the second insertion hole 41, the first mating hole 51 on the connecting rod 5 can exactly correspond to the first positioning hole 11 on the first cylinder 1, and the second mating hole 52 on the connecting rod 5 can exactly correspond to the second positioning hole 21 on the second cylinder 5. At this time, a first positioning member 6 can be used to connect and fix the first positioning hole 11 and the first mating hole 51, and a second positioning member 7 can be used to connect and fix the second positioning hole 21 and the second mating hole 52. Thus, the connection and fixation of the first cylinder 1 and the second cylinder 2 can be completed. It should be noted that the first positioning member 6 and the second positioning member 7 can use a pin structure as a fastener or a bolt as a fastener.

[0039] It should also be noted that there are two sets of the first positioning holes 11. The two sets of the first positioning holes 11 are respectively on two opposite faces of the first column 1, so that the two sets of the first positioning holes 11 are arranged vertically. By connecting and fixing the connecting rod 5 and the first column 1 in two perpendicular directions, the connection strength between the connecting rod 5 and the first column 1 can be improved; similarly, the same is true between the second column 2 and the connecting rod 5; that is, the connection strength between the first column 1 and the second column 2 is comprehensively improved.

[0040] It should also be noted that each set of the first positioning holes 11 has a total of four, and they are arranged in two parallel rows up and down, with two first positioning holes 11 in each row. Relative to the other set of the first positioning holes 11, the first positioning holes 11 in each row are arranged in a stacked and staggered manner to avoid interference between the first positioning holes 11 on different sets, and at the same time to ensure the structural strength of the first column 1. Similarly, the design of the second positioning holes 21 is the same as that of the first positioning holes.

[0041] As Figure 3 shown, a groove body 8 structure is also provided in the first insertion hole 31 and the second insertion hole 41. The groove body 8 is arranged along the axial directions of the first insertion hole 31 and the second insertion hole 41. When the connecting rod 5 is inserted into the first insertion hole 31 and the second insertion hole 41, there may be clamping or expansion between the connecting rod 5 and the first insertion hole 31, and between the connecting rod 5 and the second insertion hole 41; and the design of the groove body 8 structure can provide a certain assembly gap for the connecting rod 5 to avoid large stress inside the first insertion hole 31 and the second insertion hole 41 after the connecting rod 5 is inserted, which may damage the hole structure or the structures of the first column 1 and the second column 2.

[0042] When the connecting rod 5 is inserted into the first insertion hole 31 and the second insertion hole 41, it is difficult for the first fitting holes 51 and the second fitting holes 52 on the connecting rod 5 to be aligned with the first positioning holes 11 on the first column 1 and the second positioning holes 21 on the second column 2. Therefore, a positioning piece 53 structure is provided at one end of the connecting rod 5. The positioning piece 53 can form a fit with the groove body 8, and at the same time the positioning piece 53 can slide inside the groove body 8. When the connecting rod 5 is inserted into the first insertion hole 31 or the second insertion hole 41, first align the positioning piece 53 with the groove body 8, so as to prevent the connecting rod 5 from rotating in the first insertion hole 31 or the second insertion hole 41; through reasonable design, the first fitting hole 51 and the second fitting hole 52 on the connecting rod 5 at this time state can be respectively and simultaneously aligned with the first positioning hole 11 and the second positioning hole 21.

Claims

1. A column-column connection node, characterized in that: It includes a first column and a second column, the first column is provided with a tenon, the second column is provided with a mortise matched with the tenon, the tenon and the mortise are respectively provided with a first plugging hole and a second plugging hole corresponding to each other, and a connecting rod structure is commonly plugged into the first plugging hole and the second plugging hole; the first column is provided with a first positioning hole, the connecting rod is provided with a first matching hole corresponding to the first positioning hole, the first positioning hole and the first matching hole are positioned by a first positioning piece, the second column is provided with a second positioning hole, the connecting rod is provided with a second matching hole corresponding to the second positioning hole, and the second positioning hole and the second matching hole are positioned by a second positioning piece.

2. A column-column connection node according to claim 1, characterized in that: The first matching hole and the second matching hole are close to the middle position of the connecting rod and are symmetrically arranged with respect to the middle position of the connecting rod.

3. A column-column connection node according to claim 2, characterized in that: The first positioning hole on the first column and the second positioning hole on the second column are arranged symmetrically with respect to the matching end faces of the first column and the second column.

4. A column-column connection node according to claim 2, characterized in that: The first positioning holes are provided in two groups, the two groups of the first positioning holes are cross-arranged, and the two groups of the first positioning holes are not arranged in the same plane.

5. A column-column connection node according to claim 3, characterized in that: The second positioning holes are provided in two groups, the two groups of the second positioning holes are cross-arranged, and the two groups of the second positioning holes are not arranged in the same plane.

6. A column-column connection node according to any one of claims 1 to 5, characterized in that: The number of the first plugging holes and the number of the second plugging holes are both no less than 3.

7. A column-column connection node according to any one of claims 1 to 5, characterized in that: A groove body is provided inside the first plug hole and the second plug hole along the axial direction of the hole.

8. A column-column connection node according to claim 7, characterized in that: At least one end of the connecting rod is provided with a positioning piece adapted to the slot body.

9. A column-column connection node according to any one of claims 1 to 5, characterized in that: The tenon is provided with a rounded corner.

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