A connecting structure of a column and a beam

Abstract

The utility model relates to a kind of connecting structure of stand column and crossbeam, it includes stand column, crossbeam, first connecting piece and second connecting piece, the stand column is tubular structure;The first connecting piece includes vertical insertion pipe and horizontal insertion pipe, the vertical insertion pipe's appearance is compatible with the tubular cavity shape of stand column, the vertical insertion pipe inserts the tubular cavity of stand column;Second connecting piece is detachably connected with first connecting piece or crossbeam, first limiting portion is equipped on the second connecting piece, second limiting portion, which is matched with first limiting portion, is equipped on the stand column;The end of the stand column abuts second connecting piece and horizontal insertion pipe;The crossbeam is connected with horizontal insertion pipe.The utility model is high in reliability, easy to assemble and disassemble, and less bolt is used, and good in appearance.

Description

Technical Field

[0001] This utility model relates to the field of display shelf technology, and in particular to a connection structure between uprights and crossbeams. Background Technology

[0002] The structural stability of display shelves typically depends on the connection points between the uprights and beams. The most common method for connecting uprights and beams is to weld connecting plates to the ends of the beams, then bolt the connecting plates to the uprights. This method offers better assembly and disassembly compared to traditional welding, but it requires more bolts. Especially now that many manufacturers offer more options to users, such as allowing them to choose the number of shelf layers, beams are often connected to the broken sections of the uprights. To ensure the strength of these broken sections, the connecting plates need at least two sides to connect the upper and lower uprights, resulting in even more bolts and making assembly and disassembly more cumbersome. Furthermore, bolting exposes the screw ends, which is aesthetically unappealing. Utility Model Content

[0003] The purpose of this utility model is to provide a connection structure between the column and the beam, which has high connection reliability, is easy to install and disassemble, and uses fewer bolts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A connection structure between a column and a beam includes a column, a beam, a first connector, and a second connector. The column is a tubular structure. The first connector includes a vertical tube and a horizontal tube. The shape of the vertical tube is adapted to the shape of the column's cavity, and the vertical tube is inserted into the column's cavity. The second connector is detachably connected to the first connector or the beam. The second connector has a first limiting part, and the column has a second limiting part that engages with the first limiting part. The end of the column abuts against the second connector and the horizontal tube. The beam is connected to the horizontal tube.

[0005] With the above configuration, the columns above and below the crossbeam are connected to the vertical inserts on the first connector, ensuring that the two columns are on the same straight line and are not prone to swaying. Simultaneously, the ends of the columns abut against the second connector and the horizontal insert, ensuring that the load-bearing capacity of the upper column is reliably transferred to the lower column, thereby reducing the stress on the first connector and promoting structural stability. Furthermore, the interlocking engagement of the first and second limiting parts prevents the columns from detaching from the first connector, ensuring the stability of the connection node. The crossbeam is connected to the horizontal insert, which provides good support, eliminating the need for a connecting plate at the end of the crossbeam to ensure a reliable connection, making it more convenient and simple. In addition, this invention has the advantages of reliable connection, convenient assembly and disassembly, and fewer bolts required.

[0006] Preferably, when the second connector is detachably connected to the first connector or the crossbeam, the outer wall surface of the second connector is flush with the outer wall surface of the column; the inner wall surface of the second connector abuts against the outer wall surface of the first connector. With this arrangement, the second connector is less prone to deformation under the downward pressure of the column, and the columns above and below the crossbeam transition smoothly through the second connector, which is more aesthetically pleasing.

[0007] Preferably, the second connector is connected to the first connector or crossbeam by screws, snap-fit ​​connections, adhesive bonding, or tape. Different detachable connection methods are selected based on the actual frequency of assembly and disassembly. For applications with low disassembly frequency, screws or adhesive bonding can be used; for applications with high disassembly frequency, snap-fit ​​connections or tape connections can be used. In this case, the connection strength between the first and second connectors is not high; it is sufficient to ensure that the second connector does not shift arbitrarily. Therefore, when using screws, only one screw is needed.

[0008] Preferably, the second limiting part is a converging groove provided at the end of the column, and the first limiting part is a protrusion adapted to the shape of the converging groove. This arrangement facilitates processing, and when the first limiting part and the second limiting part are engaged, the engagement joint is smooth, which is beneficial to the appearance.

[0009] Preferably, the transverse insertion tube has a vertically arranged support portion within its lumen, and this support portion is positioned directly opposite the tube wall of the upright. This arrangement enhances the strength of the transverse insertion tube at the point where it abuts the upright.

[0010] Preferably, the crossbeam has a tubular structure, and the shape of the transverse insertion tube is adapted to the shape of the crossbeam's cavity. The transverse insertion tube is inserted into the cavity of the crossbeam, and the transverse insertion tube and the crossbeam are in a stop-fitting configuration. This connection is convenient and quick, and the crossbeam has good installation stability.

[0011] Preferably, the device further includes a stop screw; the crossbeam has a stop hole that matches the end of the stop screw, and the transverse insert has a threaded hole corresponding to the stop hole for threaded connection with the stop screw. When the stop screw is connected to the threaded hole, the end of the stop screw is located in the stop hole, and the end of the stop screw does not extend beyond the opening of the stop hole. This configuration makes the stop connection between the crossbeam and the transverse insert convenient and reliable, and the end of the stop screw can be hidden, which is aesthetically pleasing.

[0012] Preferably, the stop screw is screwed into the threaded hole vertically downwards. This design makes the stop screw less likely to be lost, and it is easy to detect if it becomes loose, so it can be tightened in time to ensure that the crossbeam does not become dislodged.

[0013] Preferably, the crossbeam and the column have the same cross-sectional shape; or, the transverse insert is integrally formed with the crossbeam. Having the same cross-sectional shape for the crossbeam and the column facilitates material preparation, and both can use standard parts, which is convenient for procurement. Furthermore, with the transverse insert integrally formed with the crossbeam, the first connecting piece can be considered part of the crossbeam, further simplifying the assembly and disassembly steps, and increasing the stability of the connection between the crossbeam and the column.

[0014] Preferably, the second connector is machined from a profile, or it is an injection molded part. For applications with high load-bearing requirements, using a profile for the second connector provides higher strength and facilitates force transmission between the upper and lower columns. For applications with lower load-bearing requirements, the second connector is directly injection molded, which allows for more diverse styles of the second limiting part and its connection methods with the first limiting part.

[0015] This utility model has the following beneficial effects: The uprights above and below the crossbeam of this invention are connected to the vertical inserts on the first connecting member, ensuring that the two uprights are aligned and do not easily sway. Simultaneously, the ends of the uprights abut against the second connecting member and the horizontal insert, ensuring that the load-bearing capacity of the upper upright is reliably transferred to the lower upright, thereby reducing the stress on the first connecting member and promoting structural stability. Furthermore, the interlocking engagement of the first and second limiting parts prevents the uprights from detaching from the first connecting member, ensuring the stability of the connection node. The crossbeam is connected to the horizontal insert, which provides good support, eliminating the need for a connecting plate at the end of the crossbeam to ensure a reliable connection, making it more convenient and simple. In addition, this invention has the advantages of reliable connection, convenient assembly and disassembly, and fewer bolts required. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of Example 1.

[0017] Figure 2 This is a schematic diagram from another perspective of Embodiment 1.

[0018] Figure 3 This is an exploded view of Example 1.

[0019] Figure 4 This is a cross-sectional view of Example 1.

[0020] Figure 5 This is a schematic diagram of Example 2.

[0021] Explanation of symbols for main components: Upper column 11, lower column 12, second limiting part 13; 20 crossbeams, 21 stop holes; First connector 30, vertical insertion tube 31, horizontal insertion tube 32, support part 33, threaded hole 34; Second connector 40, first limiting part 41; Stop screw 50. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] Example 1 like Figure 1-4 As shown, this embodiment discloses a connection structure between a column and a beam 20, which includes a column, a beam 20, a first connector 30, and a second connector 40. In this embodiment, both the column and the beam 20 are tubular structures. A square tube is used as an example; preferably, both the column and the beam 20 are made of square tubes of the same specification to facilitate procurement and material preparation. Furthermore, for ease of explanation, the columns above and below the beam 20 are defined as the upper column 11 and the lower column 12, respectively. The upper column 11 and the lower column 12 are independent of each other.

[0024] The first connector 30 includes a vertical insertion tube 31 and a horizontal insertion tube 32. The shape of the vertical insertion tube 31 is adapted to the shape of the column's cavity. The upper end of the vertical insertion tube 31 is inserted into the cavity at the lower end of the upper column 11, and the lower end of the vertical insertion tube 31 is inserted into the cavity at the upper end of the lower column 12. This ensures that the upper column 11 and the lower column 12 are on the same straight line and are not easily shaken. When the vertical insertion tube 31 is inserted into the column, the lower end of the upper column 11 and the upper end of the lower column 12 both abut against the horizontal insertion tube 32. To prevent the horizontal insertion tube 32 from being deformed by pressure, a vertically arranged support part 33 is provided in the cavity of the horizontal insertion tube 32, and the support part 33 is set directly opposite the wall of the column, abutting against the upper and lower walls of the cavity of the horizontal insertion tube 32.

[0025] The shape of the transverse insertion tube 32 is adapted to the shape of the cavity of the crossbeam 20, that is, the transverse insertion tube 32 and the vertical insertion tube 31 are made of square tubes of the same specification, which is convenient for material preparation. The transverse insertion tube 32 is inserted into the cavity of the crossbeam 20 from the end, and the transverse insertion tube 32 and the crossbeam 20 are in a stop fit. As a preferred stop fit method, the transverse insertion tube 32 and the crossbeam 20 are stopped by a stop screw 50. The crossbeam 20 is provided with a stop hole 21 that is adapted to the end of the stop screw 50. The transverse insertion tube 32 is provided with a threaded hole 34 at the position corresponding to the stop hole 21, which is threaded to the stop screw 50. The diameter of the stop hole 21 is larger than the diameter of the threaded hole 34. After the stop screw 50 is screwed into the threaded hole 34 and tightened, the end of the stop screw 50 is located in the stop hole 21, and the end of the stop screw 50 does not extend beyond the opening of the stop hole 21. By limiting the position of the stop screw 50 with the stop hole 21, the crossbeam 20 can be prevented from coming out of the transverse insert 32, making the connection convenient and strong. In order to prevent the stop screw 50 from loosening and being lost, and to facilitate the discovery of the stop screw 50 loosening, both the threaded hole 34 and the stop hole 21 are set with their openings facing upwards, that is, the direction in which the stop screw 50 is screwed into the threaded hole 34 is vertically downwards.

[0026] To ensure connection strength, the material strength of the first connector 30 shall not be lower than that of the column.

[0027] Due to the horizontal insertion tube 32, there is a certain distance between the upper column 11 and the lower column 12 (the distance is the height of the horizontal insertion tube 32). The second connector 40 is placed between the upper column 11 and the lower column 12, with the upper end of the second connector 40 abutting the lower port of the upper column 11 and the lower end abutting the upper port of the lower column 12. In this way, the force on the upper column 11 and its own weight can be effectively transferred to the lower column 12 through the second connector 40, which also helps to balance the force on the first connector 30 and reduce the force on the first connector 30. To reduce or avoid deformation of the second connector 40 under stress, the inner wall surface of the second connector 40 abuts against the outer wall surface of the first connector 30. In addition, for aesthetic reasons, it is preferable that the outer wall surface of the second connector 40 is flush with the outer wall surface of the column.

[0028] In addition, the second connector 40 also serves to stop the column. Specifically, the second connector 40 is provided with a first limiting part 41, and the column is provided with a second limiting part 13 that engages with the first limiting part 41. As a preferred embodiment, the second limiting part 13 is a groove provided at the end of the column, and the first limiting part 41 is a protrusion that matches the shape of the groove. The engagement is achieved by inserting the protrusion into the groove, and the engagement joint is smooth, which is beneficial to the appearance.

[0029] The material of the second connector 40 can be adjusted according to the actual application. For example, in applications with high load-bearing capacity, the second connector 40 can be made from profiles, such as square tubing of the same specifications as the column, which results in higher strength. In applications with lower load-bearing requirements, the second connector 40 can be directly injection molded, which allows for more variety in the style of the second limiting part 13 and its connection method with the first limiting part 41.

[0030] The second connector 40 needs to be prevented from shifting; therefore, the second connector 40 is detachably connected to the first connector 30 or the crossbeam 20. The connection method can be screw connection, snap-fit ​​connection, adhesive bonding, or tape connection. Different detachable connection methods are selected based on the actual frequency of assembly and disassembly. For applications with low disassembly frequency, screws or adhesive bonding can be used; for applications with high disassembly frequency, snap-fit ​​connections or tape connections can be used. In this case, the connection strength requirement between the first connector 30 and the second connector 40 is not high; it is only necessary to ensure that the second connector 40 does not shift arbitrarily. Therefore, when using a screw connection, only one screw is needed.

[0031] In this case, the second connector 40 is directly connected to the crossbeam 20 with tape. As a result, only one stop screw 50 is used in the entire connection structure, and the end of the stop screw 50 is hidden in the stop hole 21. The bolt is almost invisible in the entire connection structure. In addition, the connection node transition is smooth and simple, and the aesthetics are very good.

[0032] Example 2 like Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the transverse insertion tube 32 and the crossbeam 20 are integrally formed, meaning the transverse insertion tube 32 is directly used as the crossbeam 20. In this case, the first connecting piece 30 can be considered as part of the crossbeam 20, further simplifying the assembly and disassembly steps, and improving the connection stability between the crossbeam 20 and the column. Furthermore, the entire connection structure is boltless, offering advantages in terms of ease of installation and aesthetics.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection structure between a column and a beam, characterized in that: The device includes a column, a crossbeam, a first connector, and a second connector. The column is a tubular structure. The first connector includes a vertical tube and a horizontal tube. The shape of the vertical tube is adapted to the shape of the column's cavity, and the vertical tube is inserted into the column's cavity. The second connector is detachably connected to the first connector or the crossbeam. The second connector has a first limiting part, and the column has a second limiting part that engages with the first limiting part. The end of the column abuts against the second connector and the horizontal tube. The crossbeam is connected to the horizontal tube.

2. The connection structure between the column and the beam according to claim 1, characterized in that: When the second connector is detachably connected to the first connector or the crossbeam, the outer wall surface of the second connector is flush with the outer wall surface of the column; the inner wall surface of the second connector abuts against the outer wall surface of the first connector.

3. The connection structure between the column and the beam according to claim 1, characterized in that: The second connector is connected to the first connector or the crossbeam by screws, clips, adhesive, or tape.

4. The connection structure between the column and the beam according to claim 1, characterized in that: The second limiting part is a constriction groove provided at the end of the column, and the first limiting part is a protrusion that matches the shape of the constriction groove.

5. The connection structure between the column and the beam according to claim 1, characterized in that: The transverse insertion tube has a vertically arranged support portion in its cavity, and the support portion is positioned directly opposite the tube wall of the column.

6. The connection structure between the column and the beam according to claim 1, characterized in that: The crossbeam is a tubular structure, and the shape of the transverse insertion tube is adapted to the shape of the crossbeam's cavity. The transverse insertion tube is inserted into the cavity of the crossbeam, and the transverse insertion tube is in a stop-fitting position with the crossbeam.

7. The connection structure between the column and the beam according to claim 6, characterized in that: It also includes a stop screw; the crossbeam is provided with a stop hole that matches the end of the stop screw, and the transverse insert is provided with a threaded hole that is threaded to the stop screw at the position corresponding to the stop hole. When the stop screw is connected to the threaded hole, the end of the stop screw is located in the stop hole, and the end of the stop screw does not extend beyond the opening of the stop hole.

8. The connection structure between the column and the beam according to claim 7, characterized in that: The stop screw is screwed into the threaded hole in a vertically downward direction.

9. The connection structure between the column and the beam according to claim 1, characterized in that: The cross-sectional shape of the beam is the same as that of the column; or, the transverse insert is integrally formed with the beam.

10. The connection structure between the column and the beam according to claim 1, characterized in that: The second connector is made from a profile, or the second connector is an injection molded part.

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