Connecting bolt for furniture plate body self-positioning kit

Abstract

The utility model discloses a connecting bolt for a furniture plate body self-positioning suite, which comprises a bolt head, a bolt body and a bolt tail, the diameter of the bolt body is smaller than that of the bolt head, the diameter of the bolt tail is not larger than that of the bolt body, the bolt head comprises a screwed joint and a positioning cone, the positioning cone is arranged at the top of the screwed joint, and the screwed joint is connected with the positioning cone. An external thread matched with an internal thread in a connecting hole in the six-way connector is arranged on the surface of the threaded connector, the bolt body is divided into two sections, namely a first inserting section and a second inserting section, the first inserting section is connected with the bolt head, the second inserting section is connected with the bolt tail, and the bolt tail is connected with the threaded connector. A positioning groove corresponding to the positioning pin hole in the splicing strip in position is formed in the bolt body between the first insertion section and the second insertion section, and a hexagon nut structure is arranged on the bolt tail. By means of the mode, the splicing stability of the connector can be improved, and the service life of the connector can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of connecting piece, in particular to a connecting bolt for furniture plate body self-positioning kit. BACKGROUND

[0002] With the development of the times, assembled furniture gradually becomes popular, and the assembled furniture combination is simple, easy to standardize production and on-site assembly, and is especially welcomed by some people who like to do DIY, and the core of the design of assembled furniture is to divide furniture into various units that are easy to assemble, and the splicing kit is a splicing unit combination component that can be combined into furniture, and various required splicing units can be formed by combining different splicing kits, and some commonly used splicing kits have complex structures and insufficient overall precision, and during splicing, on the one hand, splicing is not convenient and generally requires special tools to complete overall splicing, which is not conducive to manual DIY, and on the other hand, the furniture frame stability is not good in actual use and is easy to collapse. In order to solve this problem, the inventor of the present application invented a connecting kit with a six-way joint as the center (CN202321967891.9) on the basis of the commonly used splicing kit, but it was found in actual use that due to the structural characteristics of the six-way joint, the installation of the bolt on the six surfaces is independent of each other, and only the connecting hole on the corresponding surface can provide a counter-torque when subjected to external force, but due to the lever effect, the force arm of the counter-torque at the connecting hole position is much smaller than that on the bolt body, so the connecting hole position is subjected to a large force and is easy to be damaged, resulting in loosening of the splicing position. SUMMARY

[0003] The technical problem solved by the utility model is to provide a connecting bolt for furniture plate body self-positioning kit, which can improve the splicing stability.

[0004] To solve the above technical problems, one technical scheme of the utility model adopts: provide a furniture board body self-positioning kit connecting bolt, the furniture board body self-positioning kit includes six-way joint, splicing strip and connecting bolt, one end of connecting bolt is fixed on the connecting hole on six-way joint, and the other end is inserted in the limit insertion hole on splicing strip, connecting bolt includes: bolt head, bolt body and bolt tail, the diameter of bolt body is less than the diameter of bolt head, the diameter of bolt tail is not greater than the diameter of bolt body, the diameter of bolt body matches the inner diameter of limit insertion hole on splicing strip, bolt head includes threaded joint and positioning cone, positioning cone is arranged on the top of threaded joint, the surface of threaded joint is equipped with external thread matching with internal thread in connecting hole on six-way joint, bolt body is divided into two sections, and is first insertion section and second insertion section respectively, first insertion section is connected with bolt head, second insertion section is connected with bolt tail, positioning groove corresponding with the position of positioning pin hole on splicing strip is arranged on the bolt body between first insertion section and second insertion section, and hexagon nut structure is arranged on bolt tail.

[0005] In a preferred embodiment of the utility model, the conical angle of the positioning cone is 90°.

[0006] In a preferred embodiment of the utility model, the six-way joint is equipped with a limit ring with an inner diameter less than the diameter of the threaded joint, the bottom diameter of the positioning cone is in clearance fit with the inner diameter of the limit ring, an avoidance step is arranged between the bottom of the positioning cone and the top of the threaded joint, the width of the avoidance step is the same as the width of the limit ring, the height of the positioning cone is equal to the distance from the center of the inner side of the limit ring to the center of the six-way joint, and the length of the threaded joint is in negative tolerance fit with the distance from the outer side of the limit ring to the surface of the six-way joint.

[0007] In a preferred embodiment of the utility model, the length of the first insertion section is greater than the length of the second insertion section.

[0008] In a preferred embodiment of the utility model, an avoidance groove is arranged between the second insertion section and the bolt tail.

[0009] The utility model has the advantages that the utility model is the structural optimization of the original connecting bolt for six-way joint, the positioning cone structure is arranged on the top of the bolt, so that the six bolts are connected and the positioning cones are closely supported to form a whole when the six-way joint is connected, any external part of the bolt can be supported by the surrounding positioning cones when it is stressed, thereby significantly reducing the direct stress of the connecting hole, which not only improves the overall stability of the frame splicing but also prolongs the service life of the six-way joint. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1is a three-dimensional structure schematic view of a preferred embodiment of the utility model;

[0011] The marks of components in the drawings are as follows:

[0012] 1. positioning cone, 2. threaded joint, 3. first insertion section, 4. second insertion section, 5. fastening plug, 6. positioning groove, 7. avoiding groove, 8. limiting ring. DETAILED DESCRIPTION

[0013] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and features of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0014] Please refer to Figure 1 The utility model embodiment includes:

[0015] A connecting bolt for furniture plate body self-positioning kit, the furniture plate body self-positioning kit includes six-way joint, splicing strip and connecting bolt, one end of the connecting bolt is fixed on the connecting hole on the six-way joint, and the other end is inserted into the limiting insertion hole on the splicing strip, the connecting bolt includes: bolt head, bolt body and bolt tail 5, the diameter of the bolt body is less than the diameter of the bolt head, the diameter of the bolt tail 5 is not greater than the diameter of the bolt body, the diameter of the bolt body matches the inner diameter of the limiting insertion hole on the splicing strip, the bolt head includes threaded joint 2 and positioning cone 1, the positioning cone 1 is arranged at the top of the threaded joint 2, the conical angle of the positioning cone 1 is 90 DEG, the surface of the threaded joint 2 is provided with external threads matched with the internal threads in the connecting hole on the six-way joint, the bolt body is divided into two sections, and is first insertion section 3 and second insertion section 4 respectively, the first insertion section 3 is connected with the bolt head, the second insertion section 4 is connected with the bolt tail 5, the bolt body between the first insertion section 3 and the second insertion section 4 is provided with positioning groove 6 corresponding to the position of the positioning pin hole on the splicing strip, and the bolt tail 5 is provided with hexagonal fastening structure.

[0016] The six-way joint is provided with a limiting ring 8 with an inner diameter smaller than the diameter of the threaded joint, in actual processing, the inner diameter of the limiting ring 8 is generally the same as the diameter of the shank body, the bottom diameter of the positioning cone 1 is in clearance fit with the inner diameter of the limiting ring 8, a clearance step is arranged between the bottom of the positioning cone 1 and the top of the threaded joint, the width of the clearance step is the same as the width of the limiting ring 8, and the height of the positioning cone 1 is equal to the distance from the center of the inner side of the limiting ring 8 to the center of the six-way joint. In this way, when the six-way joint is installed, the top of the positioning cone 1 of all bolts can be extended around the center of the six-way joint, so that the cone heads are closely dependent on each other, thereby improving the stability of the six-way joint connection. The length of the threaded joint 2 is matched with the negative tolerance of the distance from the outer side of the limiting ring 8 to the surface of the six-way joint. In this way, when the threaded joint 2 is completely installed, the external thread on the threaded joint 2 will not be exposed outside the six-way joint, thereby affecting the accuracy of the spliced rod splicing.

[0017] The length of the first insertion section 3 is greater than the length of the second insertion section 4, in the embodiment, the total height of the positioning cone 1 is 3.06 mm, the length of the threaded joint 2 is 3 mm, the length of the first insertion section 3 is 13.6 mm, the length of the second insertion section 4 is 4.5 mm, and the width of the positioning groove between the first insertion section 3 and the second insertion section 4 is 2.5 mm. The two-section structure is set in this way, on the one hand, the positioning groove 6 is set to facilitate the matching of the pin hole position on the spliced rod end and improve the stability of splicing, and on the other hand, the overall friction is smaller when the two-section structure is segmented into the insertion hole of the spliced rod, and the insertion is more rapid.

[0018] The second insertion section 4 and the shank tail 5 are provided with a clearance groove 7. The length of the shank tail 5 is 4.5 mm, and the width of the clearance groove is 2.5 mm. After the clearance groove 7 is set, the second insertion section 4 will not be touched when the wrench is tightened, so that the surface damage of the second insertion section 4 is prevented and the insertion ability is affected.

[0019] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A connecting bolt for a furniture panel self-positioning kit, the furniture panel self-positioning kit comprising a six-way connector, a splicing strip, and a connecting bolt, wherein one end of the connecting bolt is fixed to a connecting hole on the six-way connector, and the other end is inserted into a pre-set limiting hole on the splicing strip, characterized in that, The connecting bolt comprises a bolt head, a bolt body and a bolt tail, the diameter of the bolt body is smaller than that of the bolt head, the diameter of the bolt tail is not greater than that of the bolt body, the diameter of the bolt body matches the inner diameter of the limiting hole on the splicing strip, the bolt head comprises a threaded joint and a positioning cone, the positioning cone is arranged on the top of the threaded joint, the surface of the threaded joint is provided with external threads matching the internal threads in the connecting hole on the six-way joint, the bolt body is divided into two sections, i.e., a first insertion section and a second insertion section, the first insertion section is connected with the bolt head, the second insertion section is connected with the bolt tail, the bolt body between the first insertion section and the second insertion section is provided with a positioning groove corresponding to the position of the positioning pin hole on the splicing strip, and the bolt tail is provided with a hexagonal nut structure.

2. The furniture panel self-positioning kit connecting bolt according to claim 1, characterized in that, The conical angle of the positioning cone is 90°.

3. The furniture panel self-positioning kit connecting bolt according to claim 1, characterized in that, The six-way joint is internally provided with a limiting ring with an inner diameter smaller than the diameter of the threaded joint, the bottom diameter of the positioning cone is in clearance fit with the inner diameter of the limiting ring, an avoiding step is arranged between the bottom of the positioning cone and the top of the threaded joint, the width of the avoiding step is the same as the width of the limiting ring, and the height of the positioning cone is equal to the distance from the center of the inner side of the limiting ring to the center of the six-way joint.

4. The furniture panel self-positioning kit connecting bolt according to claim 3, characterized in that, The length of the threaded joint is in negative tolerance match with the distance from the outer side of the limiting ring to the surface of the six-way joint.

5. The furniture panel self-positioning kit connecting bolt according to claim 1, characterized in that, The length of the first insertion section is greater than that of the second insertion section.

6. The furniture panel self-positioning kit connecting bolt according to claim 1, characterized in that, An avoiding groove is arranged between the second insertion section and the bolt tail.

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