A flexible hinge-based quick assembly and disassembly mechanism for a box cover
By combining flexible hinges and wedge-shaped mounting slots, the problems of time-consuming and laborious bolt connections and damage to the lid are solved, enabling rapid assembly and disassembly of the box and lid to adapt to different size requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING UNIV OF TECH
- Filing Date
- 2024-05-07
- Publication Date
- 2026-05-19
AI Technical Summary
Existing bolted connections are time-consuming and labor-intensive during the assembly and disassembly of large components, and may damage the surface of the enclosure and cover, affecting its service life.
The system employs a combination of flexible hinges and wedge-shaped mounting slots, enabling rapid assembly through the simultaneous insertion of six cover assembly bolts and rapid disassembly through the simultaneous insertion of six cover removal bolts. The flexible hinges and wedge-shaped mounting slots can be designed according to the dimensions of the box body and cover.
It enables rapid assembly and disassembly of the box body and lid, reduces labor costs, avoids damage to the lid surface caused by bolt connections, and adapts to the needs of boxes and lids of different sizes.
Smart Images
Figure CN118357704B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of box assembly and disassembly, and to a mechanism suitable for the rapid assembly and disassembly of box bodies and lids. Background Technology
[0002] Common workpiece installation and connection methods include bolted connections, pin connections, welding connections, and riveting connections. While bolted connections offer the advantage of detachable connection when connecting two workpieces, they require an excessive number of bolts when connecting large components, making assembly and disassembly inconvenient. Furthermore, in some applications with stringent surface finish requirements, the bolt heads can negatively impact the working conditions.
[0003] As a common loading tool, the container body and lid often need to be assembled and disassembled. Using common bolt connections not only consumes a lot of time and labor costs, but also causes irreversible damage to the surface of the container body and lid, reducing the service life of the container.
[0004] To address the above issues, a mechanism suitable for the rapid assembly and disassembly of the box body and lid was designed. This mechanism replaces traditional bolt connections by using a combination of a flexible hinge and a wedge-shaped mounting groove. It achieves rapid assembly of the box body and lid by simultaneously inserting six lid assembly bolts, and rapid disassembly of the box body and lid by simultaneously inserting six lid disassembly bolts. The flexible hinge and wedge-shaped mounting groove can be designed to accommodate different workplaces, satisfying the assembly and disassembly of boxes and lids of varying sizes. Summary of the Invention
[0005] The purpose of this invention is to provide a quick assembly and disassembly mechanism suitable for box bodies and lids, including six flexible hinges, twelve flexible hinge mounting bolts, a lid 3, a box body 4, six wedge-shaped mounting slots, twelve wedge-shaped slot mounting bolts, a mounting platform 7, six lid assembly bolts, and six lid disassembly bolts.
[0006] The flexible hinge includes a first short-side flexible hinge 1-1, a second short-side flexible hinge 1-4, a first long-side flexible hinge 1-2, a second long-side flexible hinge 1-3, a third long-side flexible hinge 1-5, and a fourth long-side flexible hinge 1-6. The lower end face of the flexible hinge has three holes. The larger hole is a threaded hole used for mounting bolts on the lid, while the two smaller through holes are used for mounting bolts to fix the flexible hinge to the lid 3. The flexible hinge is shaped like a wedge with a 4° inclination angle, with a through notch on one side of the inclination angle, allowing the wedge to undergo elastic-plastic deformation, providing advantages such as quick assembly and disassembly and good self-locking.
[0007] The cover 3 has six larger through holes and twelve smaller threaded holes. The larger through holes are for pressing in the cover bolts and pushing out the cover removal bolts, while the smaller threaded holes are for fixing the flexible hinge to the cover 3 by cooperating with the flexible hinge mounting bolts.
[0008] The enclosure 4 has twelve threaded holes around its perimeter, which are used to fix the wedge mounting groove to the enclosure 4 by engaging with the wedge mounting bolts.
[0009] The wedge-shaped mounting groove includes a first short-side wedge-shaped mounting groove 5-1, a second short-side wedge-shaped mounting groove 5-4, a first long-side wedge-shaped mounting groove 5-2, a second long-side wedge-shaped mounting groove 5-3, a third long-side wedge-shaped mounting groove 5-5, and a fourth long-side wedge-shaped mounting groove 5-6. The upper and lower end faces of the wedge-shaped mounting groove are concentric arc surfaces with different radii. One side has a wedge-shaped groove with an angle of 5°. The bottom of the wedge-shaped groove has a threaded hole for mating with the box cover mounting bolt 8, pressing the six flexible hinges on the box cover 3 into the corresponding six wedge-shaped grooves to achieve the effect of quick connection of the box cover. The diameter of the threaded hole on the wedge-shaped mounting groove is smaller than the largest threaded hole on the flexible hinge.
[0010] The upper surface of the mounting platform 7 is a horizontal plane, and the lower surface is an arc surface. The radius of the arc surface is the same as the radius of the upper arc surface of the box cover 3.
[0011] This invention has two working states: when the cover assembly bolt is inserted into the wedge-shaped mounting groove, the flexible hinge moves downward, and the cover is in a quick assembly state; when the cover disassembly bolt is inserted into the flexible hinge, the flexible hinge moves upward, and the cover is in a quick disassembly state.
[0012] When in the assembly state, the six box cover assembly bolts and the corresponding six wedge-shaped mounting slots are engaged with the threaded holes on the wedge-shaped mounting slots. The six box cover assembly bolts rotate downwards synchronously, driving the mounting platform 7 to move downwards. The mounting platform 7 drives the six flexible hinges on the box cover 3 to insert downwards into the corresponding six wedge-shaped mounting slots on the box body 4. The flexible hinges undergo elastic-plastic deformation, and the box cover 3 and the box body 4 are quickly assembled.
[0013] When in the disassembly state, the six cover disassembly bolts and the corresponding six flexible hinges 1 engage with each other, and the six cover disassembly bolts rotate downwards synchronously. Since the inner diameter of the threaded hole on the wedge-shaped mounting groove is smaller than the inner diameter of the threaded hole on the flexible hinge, the cover disassembly bolts continue to rotate against the lower surface of the wedge-shaped mounting groove. The six flexible hinges move vertically upwards along the corresponding cover disassembly bolts, and the cover 3 and the box body 4 are quickly disassembled.
[0014] The advantages of this invention are:
[0015] The invention has a simple structure. The assembly and disassembly principle of the cover 3 and the body 4 is mainly realized by the flexible hinge and the wedge-shaped mounting groove.
[0016] This invention no longer uses the original bolt connection method, but instead uses flexible hinges and different sizes of threaded holes inside the wedge-shaped mounting groove to achieve rapid assembly of the box body and box cover with the help of box cover mounting bolts.
[0017] This invention no longer uses the original bolt disassembly method, but instead uses a flexible hinge and different sizes of threaded holes inside the wedge-shaped mounting groove to achieve quick disassembly of the box body and box cover by means of the box cover disassembly bolt.
[0018] The flexible hinge and wedge mounting groove of the present invention can be designed according to the size of different box bodies and covers, and different flexible hinges and wedge mounting grooves can be replaced according to different working requirements. Attached Figure Description
[0019] Figure 1 Diagram of box cover parts
[0020] Figure 2 Overall diagram of the box lid
[0021] Figure 3 Box body parts schematic diagram
[0022] Figure 4 Overall schematic diagram of the enclosure
[0023] Figure 5 Partial schematic diagram of the initial assembly state
[0024] Figure 6 Partial diagram of the assembled state
[0025] Figure 7 Partial diagram of the initial disassembly state
[0026] Figure 8 Partial diagram of the disassembly completed state
[0027] Figure 9 Installation platform status diagram
[0028] Figure 10 First short-side flexible hinge
[0029] Figure 11 First long-side flexible hinge
[0030] Figure 12 First short-side wedge-shaped mounting groove
[0031] Figure 13 First long-side wedge-shaped mounting groove
[0032] In the picture:
[0033] 1-1 First short-side flexible hinge; 1-2 First long-side flexible hinge; 1-3 Second long-side flexible hinge; 1-4 Second short-side flexible hinge; 1-5 Third long-side flexible hinge; 1-6 Fourth long-side flexible hinge;
[0034] 2-1 First flexible hinge mounting bolt; 2-2 Second flexible hinge mounting bolt; 2-3 Third flexible hinge mounting bolt; 2-4 Fourth flexible hinge mounting bolt; 2-5 Fifth flexible hinge mounting bolt; 2-6 Sixth flexible hinge mounting bolt; 2-7 Seventh flexible hinge mounting bolt; 2-8 Eighth flexible hinge mounting bolt; 2-9 Ninth flexible hinge mounting bolt; 2-10 Tenth flexible hinge mounting bolt; 2-11 Eleventh flexible hinge mounting bolt; 2-12 Twelfth flexible hinge mounting bolt;
[0035] 3. Lid; 4. Body;
[0036] 5-1 First short-side wedge-shaped mounting groove; 5-2 First long-side wedge-shaped mounting groove; 5-3 Second long-side wedge-shaped mounting groove; 5-4 Second short-side wedge-shaped mounting groove; 5-5 Third short-side wedge-shaped mounting groove; 5-6 Fourth short-side wedge-shaped mounting groove;
[0037] 6-1 First wedge groove mounting bolt; 6-2 Second wedge groove mounting bolt; 6-3 Third wedge groove mounting bolt; 6-4 Fourth wedge groove mounting bolt; 6-5 Fifth wedge groove mounting bolt; 6-6 Sixth wedge groove mounting bolt; 6-7 Seventh wedge groove mounting bolt; 6-8 Eighth wedge groove mounting bolt; 6-9 Ninth wedge groove mounting bolt; 6-10 Tenth wedge groove mounting bolt; 6-11 Eleventh wedge groove mounting bolt; 6-12 Twelfth wedge groove mounting bolt;
[0038] 7. Installation platform;
[0039] 8-1 First box cover assembly bolts; 8-2 Second box cover assembly bolts; 8-3 Third box cover assembly bolts; 8-4 Fourth box cover assembly bolts; 8-5 Fifth box cover assembly bolts; 8-6 Sixth box cover assembly bolts;
[0040] 9-1 First box cover removal bolts; 9-2 Second box cover removal bolts; 9-3 Third box cover removal bolts; 9-4 Fourth box cover removal bolts; 9-5 Fifth box cover removal bolts; 9-6 Sixth box cover removal bolts. Detailed Implementation
[0041] The present invention is described below with reference to the accompanying drawings and embodiments, but the present invention is not limited to the following embodiments.
[0042] An example of the process from the disassembled state to the assembled state of the box lid:
[0043] Partial diagram of the initial assembly state Figure 5 As shown, the first cover assembly bolt 8-1 is inserted and passes through the first short-side flexible hinge 1-1, and mates with the threaded hole on the first short-side wedge-shaped mounting groove 5-1. The bolt head of the first cover assembly bolt 8-1 contacts the mounting platform 7, and the lower surface of the mounting platform 7 contacts the upper surface of the cover 3. The first cover assembly bolt 8-1 rotates downward, and the bolt head drives the mounting platform 7 to press the cover 3 down, pressing the first short-side flexible hinge 1 down into the first short-side wedge-shaped mounting groove 5-1. The first short-side flexible hinge 1-1 undergoes elastic-plastic deformation. The assembly state of the other five flexible hinges is the same. At this time, the cover changes from the disassembled state to the assembled state. Partial schematic diagram of the assembled state. Figure 6 As shown.
[0044] Implementation example of the change from the assembled state to the disassembled state of the box lid:
[0045] Partial diagram of the initial disassembly state Figure 7 As shown, the threaded hole on the first cover removal bolt 9-1 engages with the threaded hole on the first short-side flexible hinge 1-1, and rotates downwards until it abuts against the upper surface of the first short-side wedge groove 5-1. The first cover removal bolt 9-1 continues to rotate, and the first short-side flexible hinge 1-1 moves upwards along the first cover removal bolt 9-1. The disassembly state of the other five flexible hinges is the same. At this time, the cover has changed from the assembled state to the disassembled state. Partial diagram of the disassembly completed state. Figure 8 As shown.
Claims
1. A mechanism for quick assembly and disassembly of a box / lid based on a flexible hinge, characterized in that, Includes flexible hinges, flexible hinge mounting bolts, box cover (3), box body (4), wedge mounting groove, wedge groove mounting bolts, mounting platform (7), box cover assembly bolts and box cover disassembly bolts; The flexible hinge includes a first short-side flexible hinge (1-1), a second short-side flexible hinge (1-4), a first long-side flexible hinge (1-2), a second long-side flexible hinge (1-3), a third long-side flexible hinge (1-5), and a fourth long-side flexible hinge (1-6). The lower end face of the flexible hinge has three holes, one of which is a larger hole and the other two are smaller through holes. The larger hole is a threaded hole used for the assembly of the box cover press-in bolts. The two smaller through holes are used for the flexible hinge mounting bolts (2) to fix the flexible hinge to the box cover (3). The flexible hinge is shaped like a wedge with an inclination angle of 4°. A through notch is opened on one side of the inclination angle so that the wedge has elastic-plastic deformation. The lid (3) has six larger through holes and twelve smaller threaded holes. The larger through holes are for pressing in the lid and pushing out the lid removal bolts. The smaller threaded holes are for fixing the flexible hinge to the lid (3) by cooperating with the flexible hinge mounting bolts. The box (4) has twelve threaded holes around its perimeter, which are used to fix the wedge mounting groove to the box (4) by cooperating with the wedge mounting bolts; The wedge mounting groove includes a first short-side wedge mounting groove (5-1), a second short-side wedge mounting groove (5-4), a first long-side wedge mounting groove (5-2), a second long-side wedge mounting groove (5-3), a third long-side wedge mounting groove (5-5), and a fourth long-side wedge mounting groove (5-6). The upper and lower end faces of the wedge mounting groove are concentric arc surfaces with different radii. One side has a wedge groove with an angle of 5°. The bottom of the wedge groove has a threaded hole for engaging with the box cover assembly bolts. The six flexible hinges on the box cover (3) are pressed into the corresponding six wedge grooves to achieve the effect of quick connection of the box cover. The diameter of the threaded hole on the wedge mounting groove is smaller than the largest threaded hole on the flexible hinge. The upper surface of the mounting platform (7) is a horizontal plane, and the lower surface is an arc surface. The radius of the arc surface is the same as the radius of the upper arc surface of the box cover (3).
2. The quick assembly and disassembly mechanism for a box body and lid based on a flexible hinge according to claim 1, characterized in that, By utilizing the engagement of six box cover assembly bolts and the corresponding wedge-shaped mounting slots with threaded holes, the six box cover assembly bolts rotate downwards synchronously, causing the mounting platform (7) to move downwards. The mounting platform (7) then causes the six flexible hinges on the box cover (3) to insert downwards into the corresponding six wedge-shaped mounting slots on the box body (4). The flexible hinges undergo elastic-plastic deformation, and the box cover (3) and the box body (4) achieve rapid assembly.
3. The quick assembly and disassembly mechanism for the box body and lid based on a flexible hinge according to claim 1, characterized in that, By utilizing the cooperation of the six box cover removal bolts and the corresponding threaded holes on the flexible hinges, the six box cover removal bolts rotate downwards synchronously. Since the inner diameter of the threaded hole on the wedge-shaped mounting groove is smaller than the inner diameter of the threaded hole on the flexible hinge, the six box cover removal bolts continue to rotate against the lower surface of the wedge-shaped mounting groove. The six flexible hinges move vertically upwards along the corresponding box cover removal bolts, and the box cover (3) and the box body (4) achieve the purpose of rapid disassembly.
4. The quick assembly and disassembly mechanism for a box body and lid based on a flexible hinge according to claim 1, characterized in that, The first short-side flexible hinge (1-1) and the second short-side flexible hinge (1-4) are symmetrically distributed on the axis of symmetry of the two short sides of the box cover (3), and the first long-side flexible hinge (1-2), the second long-side flexible hinge (1-3), the third long-side flexible hinge (1-5), and the fourth long-side flexible hinge (1-6) are symmetrically distributed on the long side of the box cover (3).
5. The quick assembly and disassembly mechanism for a box body and lid based on a flexible hinge according to claim 1, characterized in that, The first short-side wedge mounting groove (5-1) and the second short-side wedge mounting groove (5-4) are symmetrically distributed on the axis of symmetry of the two short sides of the housing (4); the first long-side wedge mounting groove (5-2), the second long-side wedge mounting groove (5-3), the third long-side wedge mounting groove (5-5), and the fourth long-side wedge mounting groove (5-6) are symmetrically distributed on the long side of the housing (4).
6. The quick assembly and disassembly mechanism for a box body and lid based on a flexible hinge according to claim 1, characterized in that, The assembly of the cover (3) and the body (4) is achieved through the elastic-plastic deformation of the flexible hinge; the fit between the cover assembly bolt and the threaded hole of the wedge groove on the wedge mounting groove is achieved; and the fit between the cover disassembly bolt and the threaded hole on the flexible hinge is achieved.