A buckle assembly with good locking effect, a bed frame and a bed support

Abstract

The application relates to a buckle assembly with good locking effect, a bed frame and a bed support. The existing buckle assembly is prone to shaking, which affects the use experience. The buckle assembly comprises a buckle plate and a groove plate. The buckle plate comprises two vertically arranged buckles. The groove plate is provided with buckle grooves corresponding to the buckles. The groove plate comprises two groove opening areas corresponding to the buckle grooves and a limiting area arranged between the groove opening areas. The groove opening area comprises an inclined part with an inclined guide surface. The buckle groove comprises a narrow opening section arranged on the inclined part and a wide opening section arranged above the narrow opening section. The buckle passes through the wide opening section and slides downward to the narrow opening section. The buckle slides along the inclined guide surface and pulls the two end portions of the buckle plate to the groove plate, so that the middle portion of the buckle plate is tightly attached to the limiting area and is clamped and locked with the groove plate.

Description

Technical Field

[0001] This invention relates to the field of bedding, and more specifically to a fastening assembly, a bed frame, and a bed support. Background Technology

[0002] The existing bed frame includes a backrest and a bed frame, which are manufactured separately and assembled on-site. The backrest bottom and the front edge of the bed frame are installed together by a fastening assembly, which includes a fastening plate and a groove plate. The fastening plate has fasteners, and the groove plate has a fastening groove. Both the fastening plate and the groove plate are flat. During installation, the fasteners are inserted into the grooves and locked in place to ensure that the fastening plate and the groove plate are parallel and fit together. To reduce installation difficulty, there may be a dimensional difference between the fasteners and the grooves, which creates an assembly gap. Although this improves assembly efficiency, after installation, the assembly gap between the fasteners and the grooves can cause the fastening plate and the groove plate to not fit tightly together, resulting in wobbling. This means that the fastening assembly can gain space relative to the backrest due to the external force applied to the bed frame by the user when lying down. Especially when the user leans against the backrest, the height of the backrest is converted into a torque on the fastening assembly, causing the assembly gap between the backrest and the bed frame to increase due to reciprocating impacts. This leads to increasingly loud creaking noises due to increased wobbling, and even frequent slippage and disengagement, affecting the user experience. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a fastening assembly, bed frame, and bed support with excellent locking performance. By setting an inclined guide surface to tighten the fastener inserted into the fastening slot, it ensures that the fastener plate and the slot plate fit tightly and eliminates assembly gaps. This not only reduces assembly difficulty by leaving an assembly gap when the fastener is inserted into the fastening slot, but also improves connection reliability by eliminating assembly gaps when the fastener and the fastening slot are locked together. It also eliminates noise by eliminating shaking, prevents the fastener from coming off the fastening slot, and improves the user experience.

[0004] This invention is achieved through the following means: a fastening assembly with good locking effect, comprising a fastening plate and a groove plate. The fastening plate includes two vertically separated fasteners. The groove plate is provided with fastening grooves for the corresponding fasteners to fasten. The groove plate includes two slotted areas for corresponding fastening grooves and a limiting area set in the slotted area. The slotted area includes an inclined portion with an inclined guide surface. The fastening groove includes a narrow section set on the inclined section and a wide section set above the narrow section. The fastener passes through the wide section and slides down to the narrow section. The fastener slides along the inclined guide surface and pulls the two ends of the fastening plate toward the groove plate, so that the middle part of the fastening plate is tightly attached to the limiting area and locked with the groove plate. The device features an inclined section with a guide surface. This guide surface pulls the fastener inserted into the narrow section, preventing it from getting closer to the slot due to contact with the limiting area. Simultaneously, the guide surface pulls the fastener, causing the two ends of the fastener to move towards the slot and eliminate assembly gaps. This creates opposing forces between the middle and ends of the fastener, ensuring a tight connection between the fastener and the slot. Eliminating assembly gaps also eliminates any wobbling between them. The wide opening facilitates fastener insertion into the slot, while the pre-existing assembly gap improves assembly convenience and reduces assembly difficulty. Furthermore, when the fastener slides into the narrow section, the elimination of assembly gaps ensures a secure lock with the slot, limiting wobbling between the slot and the fastener, improving connection reliability, effectively eliminating noise, preventing fasteners from detaching from the slot, and enhancing the user experience.

[0005] Preferably, the bottom edge of the inclined guide surface is tilted away from the buckle plate, so that when the fastener slides down along the inclined guide surface, it drives the buckle plate towards the groove plate. The inclined guide surface can convert the downward force of the fastener into a pulling force that pulls the buckle plate towards the groove plate, thereby making the buckle plate move towards the groove plate and eliminating the assembly gap when the fastener is already engaged in the buckle groove, effectively eliminating the wobbling between the buckle plate and the groove plate, and improving the connection reliability.

[0006] Preferably, the inclined guide surface and the groove plate have an included angle A, where A ≥ 1°. The inclined guide surface is an inclined plane, and the ratio between the sliding distance of the fastener along the inclined guide surface and the distance the fastener moves towards the groove plate is the same, ensuring that the fastener can smoothly pull the fastener towards the groove plate and will not get stuck due to excessive resistance in some sections.

[0007] Preferably, the offset of the bottom edge of the inclined guide surface from the buckle plate is at least 1mm. By setting the offset distance of the bottom edge of the inclined guide surface, the assembly gap can be effectively eliminated, thereby ensuring a tight fit between the buckle plate and the groove plate, effectively preventing abnormal noise and disengagement due to increased shaking. In addition, by appropriately increasing the offset, an interference fit can be ensured between the fastener and the bottom of the inclined guide surface, thereby effectively preventing the fastener from disengaging from the buckle groove.

[0008] Preferably, the fastener is cross-shaped, including a vertical connecting part and a horizontal fastening part. Both ends of the connecting part are connected to the buckle plate, and both ends of the fastening part can slide along the inclined guide surface. The fastener is fixed to the buckle plate through the connecting part, ensuring that the distance between the fastening part and the buckle plate remains constant. This ensures that the buckle plate can move closer to the groove plate when the fastening part is pulled by the inclined guide surface, effectively eliminating assembly gaps.

[0009] Preferably, the end edge of the fastening part has an arc-shaped surface with a central bulge to reduce the contact area between the fastening part and the inclined guide surface. The contact surface of the fastening part facing the fastening plate has an arc-shaped surface with a central bulge outward. After passing through the fastening groove, the fastening part can abut against the inclined guide surface through the top and bottom edges of the contact surface. This effectively reduces the contact area between the fastening part and the inclined guide surface, thereby reducing the force required for fastening by reducing friction, facilitating the fastening operation, and also improving the structural strength of the fastening part, effectively resisting the horizontal pulling force converted from the inclined guide surface.

[0010] Preferably, the inclined guide surface has flush positioning grooves on both sides of the bottom of the narrow section. When the fastener slides into place along the inclined guide surface, the bottom edge of the fastening part is engaged in the positioning groove and produces a positioning sound upon impact. The top edge of the fastening part can abut against the inclined guide surface when fastened in place, and the bottom edge can be engaged in the positioning groove when fastened in place. The positioning groove can not only produce a positioning sound upon impact when the bottom edge of the fastening part is engaged, reminding the assembler to fasten in place, but also play a vertical limiting role for the fastening part, preventing the fastener from getting stuck due to excessive sliding along the inclined guide surface, which would make disassembly and release difficult.

[0011] Preferably, the connecting part, the fastening part, and the fastening plate are an integral structure, and the fastening plate is formed by cutting and pressing. A cross-shaped area is formed by cutting in a specific area of ​​the fastening plate, and then the cross-shaped area is pressed to obtain the fastening, so that there is a preset distance between the fastening part and the fastening plate, which facilitates its use with the fastening groove and also facilitates processing.

[0012] Preferably, the width of the connecting part matches the width of the narrow section to eliminate the gap generated after the two are inserted. The connecting part passes through the buckle groove and serves to connect the buckle plate and the buckle part, so that the horizontal pulling force on the buckle part can be effectively transmitted to the buckle plate. The width of the connecting part matches the width of the narrow section. By eliminating the gap between the side edge of the connecting part and the side wall of the narrow section, the wide-direction sway is suppressed, thereby effectively reducing noise and improving connection reliability.

[0013] Preferably, the width of the fastening part is smaller than the width of the wide opening section, ensuring that the fastening part can pass through the fastening groove through the wide opening section and abut against the inclined guide surface set on the opposite fastening plate at both ends when it moves down to the narrow opening section.

[0014] Preferably, the slotted plate includes a working surface raised towards the backrest and a connecting surface located at the edge of the working surface. The working surface forms the slotted area and the limiting area through regional undulations. The working surface is formed by a bulge in the middle of the slotted plate, and the undeformed area at the edge of the working surface is designated as the connecting surface. The connecting surface is provided with mounting holes for fasteners to pass through. This not only ensures a secure connection between the slotted plate and the backrest by fitting and fixing the plate to the backrest, but also creates an installation space between the working surface and the connecting surface for the fastener to be inserted, preventing the fastener from being unable to be inserted into the slot due to obstruction by the backrest. Furthermore, during the bulging process of the working surface, the differential undulations simultaneously form a slotted area with vertical and inclined portions, as well as a limiting area located between adjacent slotted sections, ensuring that the shape of the slot meets the design requirements.

[0015] Preferably, the top edge of the slotted area above the slotted plate is located at the junction of the working surface and the connecting surface, and the top edge of the wide section of the corresponding fastener is exposed upwards. The top edge of the fastener located at the junction of the working surface and the connecting surface on the upper part of the slotted plate gives the fastener an upward-exposed area, which facilitates the receipt of falling fasteners and reduces assembly difficulty.

[0016] Preferably, a vertical section is provided between the slotted area and the limiting area located below the slotted plate. The bottom edge of the vertical section is flush with the top edge of the inclined section below, and wide and narrow sections corresponding to the buckle slots are respectively formed. The vertical section, located between the slotted area and the limiting area below the slotted plate, maintains a vertical posture, ensuring that it remains parallel to the buckle plate after being fastened in place. This creates an assembly gap between the fastener and the wide section of the vertical section, facilitating the insertion of the fastener into the buckle slot through the wide section. The parallelism between the vertical section and the slotted plate ensures that the distances between the vertical section and the buckle plate, and between the slotted plate and the buckle plate, change synchronously during installation. The inclined guide surface smoothly connects with the bottom edge of the vertical section, effectively receiving the fastener from the wide section of the vertical section and preventing the fastener from getting stuck during movement.

[0017] A bed frame includes a bed support and a backrest disposed at the front edge of the bed support. At least two sets of fastening components are provided between the bed support and the backrest. Fasteners are fixed to the bed support by fasteners located around their periphery, and slotted plates are fixed to the backrest by fasteners located around their periphery. The front edge of the bed support is first raised, causing the fasteners to insert into a wide section, and then lowered, causing the fasteners to engage in a narrow section. During installation, after the front edge of the bed support is raised, it moves towards the backrest. The fasteners are horizontally inserted into the wide section corresponding to the fastening slot, and then the weight of the bed support itself slides downward into the narrow section. The inclined guide surface converts the weight of the bed support into a horizontal pulling force, causing the bed support and backrest to fit tightly together, ensuring a secure connection and effectively preventing wobbling.

[0018] A bed support includes a first support body and a second support body, which are fixedly connected by at least two sets of fastening components to form the bed support. The bed support has a modular structure, comprising a first support body and a second support body assembled by fastening components, which facilitates independent production, transportation, and storage, and allows for rapid on-site assembly, improving the user experience.

[0019] The beneficial effects of this invention are as follows: The vertical portion and the inclined portion are provided. After being fastened in place, the vertical portion remains parallel to the fastener plate, ensuring an assembly gap between the fastener and the wide section of the vertical portion. This facilitates the fastener's insertion into the fastener slot through the wide section. The inclined portion has an inclined guide surface that pulls the fastener inserted into the narrow section. On one hand, the fastener plate cannot move closer to the slot plate due to contact with the limiting area; on the other hand, the inclined guide surface pulls the fastener, causing both ends of the fastener plate to move closer to the slot plate and eliminating the assembly gap. In the middle of the fastener plate… The two ends of the plate and the plate form opposing forces, which ensures that the buckle plate and the groove plate are tightly fixed together. The wobbling space between the two is eliminated by eliminating the assembly gap. The wide opening on the vertical part allows the buckle to be inserted into the buckle groove. The assembly gap is reserved to improve the convenience of assembly and reduce the assembly difficulty. When the fastener slides into the narrow opening, the assembly gap is eliminated to lock it into the buckle groove. The connection reliability is improved by limiting the wobbling between the buckle groove and the fastener. The noise is effectively eliminated and the fastener is prevented from falling out of the buckle groove, thus improving the user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the disassembly structure of the fastening assembly described in Embodiment 1; Figure 2 This is a cross-sectional view of the disassembled structure of the fastening assembly described in Embodiment 1; Figure 3 This is a cross-sectional view of the assembly structure of the fastening assembly described in Embodiment 1; Figure 4 This is a schematic diagram of the structure of the groove plate described in Embodiment 1; Figure 5 This is a schematic diagram of the structure of the buckle plate described in Embodiment 1; Figure 6 This is a schematic diagram from another perspective of the disassembly structure of the fastening assembly described in Embodiment 1; Figure 7 This is a schematic diagram of the disassembled structure of the bed frame described in Example 2; Figure 8 This is a schematic diagram of the disassembled structure of the bed support described in Embodiment 3; In the diagram: 1. Buckle plate, 2. Groove plate, 3. Buckle groove, 4. Grooved area, 5. Inclined part, 6. Vertical part, 7. Limiting area, 8. Wide opening section, 9. Narrow opening section, 10. Fastener, 11. Inclined guide surface, 12. Connecting part, 13. Fastening part, 14. Positioning groove, 15. Connecting surface, 16. Bed support, 17. Backrest, 18. First support body, 19. Second support body. Detailed Implementation

[0021] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1: This embodiment provides a fastening assembly.

[0023] like Figure 1 , 2 The fastening assembly shown in Figure 3 includes a fastening plate 1 and a groove plate 2. The fastening plate 1 includes two vertically separated fasteners 10. The groove plate 2 is provided with fastening grooves 3 for the corresponding fasteners 10 to fasten. The groove plate 2 includes two slotted areas 4 for the corresponding fastening grooves 3 and a limiting area 7 between the slotted areas 4. The slotted area 4 includes an inclined portion 5 with an inclined guide surface 11. The fastening groove 3 includes a narrow section 9 provided on the inclined portion 5 and a wide section 8 provided above the narrow section 9. The fastener 10 passes through the wide section 8 and slides down to the narrow section 9. The fastener 10 slides along the inclined guide surface 11 and pulls the two ends of the fastening plate 1 towards the groove plate 2, so that the middle part of the fastening plate 1 is tightly attached to the limiting area 7 and locked with the groove plate 2. An inclined section 5 is provided, with a wide section 8 positioned above the top edge of the inclined section 5 and closer to the buckle plate 1, and a narrow section 9 positioned at the bottom of the inclined section 5 and away from the buckle plate 1. This creates an assembly gap between the fastener 10 and the wide section 8, facilitating the insertion of the fastener 10 into the buckle groove 3 through the wide section 8. An inclined guide surface 11 is provided on the inclined section 5, which can tighten the fastener 10 inserted into the narrow section 9. On one hand, the buckle plate 1 will be unable to approach the groove plate 2 further due to contact with the limiting area 7; on the other hand, the fastener 10 will be driven by the pull of the inclined guide surface 11, causing both ends of the buckle plate 1 to move closer to the groove plate 2 and eliminate [further issues]. In addition to the assembly gap, opposing forces are formed between the middle and both ends of the buckle plate 1, thereby ensuring that the buckle plate 1 and the groove plate 2 are tightly fixed together. By eliminating the assembly gap, the wobbling space between the two is eliminated. The wide opening section 8 facilitates the insertion of the buckle into the buckle groove 3, and the reserved assembly gap improves the convenience of assembly and reduces the assembly difficulty. When the fastener 10 slides into the narrow opening section 9, the elimination of the assembly gap locks it into the buckle groove 3. By limiting the wobbling between the buckle groove 3 and the fastener 10, the connection reliability is improved, noise is effectively eliminated, and the situation where the fastener 10 comes off the buckle groove 3 is prevented, thus improving the user experience.

[0024] In this embodiment, the slotted plate 2 has upper and lower slotted areas 4 and a limiting area 7 disposed between the two slotted areas 4 (e.g., Figure 4 As shown), each slotted area 4 has a corresponding fastening groove 3. Each slotted area 4 includes a vertical part 6 and an inclined part 5. The fastening groove 3 includes a wide section 8 and a narrow section 9 that are interconnected and respectively opened on the vertical part 6 and the inclined part 5. The upper and lower parts of the fastening plate 1 are respectively provided with fasteners 10 that can be fastened to the corresponding fastening groove 3. The fastener 10 includes a connecting part 12 and a fastening part 13 (e.g., ...). Figure 5 As shown), the fastening part 13 is fixed to the buckle plate 1 via the connecting part 12. Each fastener 10 can move synchronously with the buckle plate 1 during installation: First, the buckle plate 1 and the groove plate 2 are aligned parallel to each other. The buckle plate 1 moves closer to the groove plate 2 and drives the buckle part 13 on the fastener 10 to pass horizontally through the wide opening section 8, so that the buckle part 13 and the buckle plate 1 are located on both sides of the grooved area 4 respectively. Afterwards, the buckle plate 1 moves downward and drives the buckle part 13 to move downward synchronously through the connecting part 12. Since the vertical part 6 is set vertically and the distance between it and the buckle plate 1 remains constant, and the horizontal distance between the vertical part 6 and the buckle part 13 is greater than the horizontal distance between the limiting area 7 and the buckle plate 1, there is always an assembly gap between the buckle part 13 and the vertical part 6, which makes it convenient for the buckle part 13 to avoid the vertical part 6 and move downward to the narrow opening 9. Next, the fastening part 13 moves downward along the vertical part 6 onto the inclined guide surface 11. The inclined guide surface 11 converts the vertical force from the fastening part 13 into a horizontal pulling force that drives the fastening part 13 to shift horizontally. This forces the fastening plate 1 to move closer to the groove plate 2 and abut against the limiting area 7. Because the fastening plate 1 is positioned by the limiting area 7, the fastening part 13 cannot cooperate with the inclined guide surface 11 to shift horizontally. During the downward movement of the fastening part 13, the inclined guide surface 11 and the fastening part 13... The first horizontal distance between the high alignment area and the vertical plane where the limiting area 7 is located will increase as the fastening part 13 continues to slide down, while the second horizontal distance between the fastening part 13 and the buckle plate 1 remains constant. When the first horizontal distance gradually increases and reaches the second horizontal distance, the assembly gap between the fastening part 13 and the inclined guide surface 11 will be gradually occupied and disappear. When the first horizontal distance exceeds the second horizontal distance, the edge of the narrow section 9 will be locked between the fastening part 13 and the buckle plate 1 in an interference fit and assembled in place. Finally, the bottom edge of the fastening part 13 will snap into the positioning groove 14 after assembly, and a positioning prompt sound will be generated by impact.

[0025] After installation, the upper and lower parts of the buckle plate 1 are locked to the corresponding buckle groove 3 by the fastener 10, respectively. A first horizontal force is applied to the upper and lower parts of the buckle plate 1 towards the groove plate 2, while the middle part of the buckle plate 1 abuts against the limiting area 7 of the groove plate 2, effectively preventing the buckle plate 1 from getting too close to the groove plate 2. A second horizontal force is applied to the buckle plate 1 in the opposite direction to the first horizontal force, so that the buckle plate 1 is firmly locked onto the groove plate 2 by the three separate forces. By eliminating the assembly gap, the anti-shaking performance is improved, thereby meeting the usage requirements.

[0026] In actual operation, the inclined guide surface 11 and the groove plate 2 have an included angle A, where A ≥ 1°, preferably A = 2°. This effectively improves the conversion efficiency of the inclined guide surface 11 for vertical forces, thereby applying a greater horizontal pulling force to the fastening part 13. It also effectively reduces the resistance of the fastening part 13 sliding along the inclined guide surface 11, thus ensuring that the fastening part 13 can slide smoothly to the positioning groove 14. In addition, the offset of the bottom edge of the inclined guide surface 11 from the fastening plate 1 is at least 1 mm, preferably 2 mm. This ensures that the fastening part 13 can obtain a horizontal offset distance to eliminate assembly gaps after being fastened in place, ensuring that the groove plate 2 is tightly locked between the fastening part 13 and the fastening plate 1. By eliminating assembly gaps, the shaking between the fastener 10 and the fastening groove 3 is limited, thereby improving the user experience.

[0027] During production, both the buckle plate 1 and the groove plate 2 are formed from flat raw materials through sheet metal processing to create fasteners 10 and buckle grooves 3 that meet the structural requirements of use. When processing the groove plate 2, it includes a working surface raised towards the buckle plate 1 and a connecting surface 15 located at the edge of the working surface. The working surface forms the slotted area 4 and the limiting area 7 through regional undulations. The slotted area 4 may be provided with a vertical portion 6 and an inclined portion 5 as needed. The limiting area 7 has the maximum raised amplitude to ensure it can tightly contact the buckle plate 1. The top edge of the inclined guide surface 11 smoothly connects to the bottom edge of the vertical portion 6. The bottom edge of the inclined guide surface 11 is inclined away from the buckle plate 1 so that when the fastener 10 slides down the inclined guide surface 11, it drives the buckle plate 1 towards the groove plate 2. When processing the buckle plate 1, the connecting portion 12, the fastening portion 13, and the buckle plate 1 are an integral structure. The buckle plate 1 is formed by cutting and pressing to create the fastener 10 (e.g., Figure 6 As shown), the fastener 10 is cross-shaped and includes a vertically placed connecting part 12 and a horizontally placed fastening part 13. The two ends of the connecting part 12 are respectively connected to the buckle plate 1, and the two ends of the fastening part 13 can slide along the inclined guide surface 11.

[0028] In actual operation, the end edge of the fastening part 13 is an arc-shaped surface with a raised center. This reduces friction by decreasing the contact area between the fastening part 13 and the inclined guide surface 11, making it easier to insert, remove, and assemble. It also allows the bottom edge of the fastening part 13 to be inserted into the positioning groove 14, which positions the fastening part 13 and prevents it from failing to disengage due to excessive pressure on the inclined guide surface 11.

[0029] In actual operation, the inclined guide surface 11 is provided with flush positioning grooves 14 on both sides of the bottom of the narrow section 9. When the fastener 10 slides into place along the inclined guide surface 11, the bottom edge of the fastening part 13 is engaged in the positioning groove 14 and forms a positioning prompt sound by impact. Before reaching the positioning groove 14, the bottom edge of the fastening part 13 will be tightened or even slightly deformed by the pressure of the inclined guide surface 11 and accumulate a reset pre-tightening force. When the bottom edge of the fastening part 13 moves to the opening of the positioning groove 14, due to the loss of the support of the inclined guide surface 11, the fastening part 13 resets under its own reset pre-tightening force and is inserted into the positioning groove 14. After impacting the groove wall, it produces a positioning prompt sound, indicating to the user that the fastener 10 has been fastened in place. In order to obtain a crisp and loud positioning prompt sound, the fastening plate 1 and the groove plate 2 are preferably made of galvanized steel.

[0030] In this embodiment, the width of the connecting part 12 matches the width of the narrow section 9, ensuring that the connecting part 12 can be tightly locked after falling into the narrow section 9, effectively eliminating the gap between the side edge of the connecting part 12 and the side edge of the narrow section 9, thereby effectively eliminating shaking.

[0031] In this embodiment, the width of the fastening part 13 is less than the width of the wide opening section 8, and the height of the wide opening section 8 is greater than the height of the fastening part 13, so as to ensure that the fastening part 13 can pass smoothly through the slot plate 2 through the wide opening section 8, thereby ensuring that the fastening part 13 can cooperate with the fastening plate 1 to clamp the narrow opening section 9 of the fastening slot 3.

[0032] In this embodiment, the top edge of the slotted area 4 above the slotted plate 2 is located at the junction of the working surface and the connecting surface 15, and the top edge of the wide section 8 of the corresponding slot 3 is exposed upwards. A raised working surface is formed in the middle of the slotted plate 2, and a connecting surface 15 is formed around the working surface. The junction between the top edge of the working surface and the top surface of the connecting surface 15 has a horizontally arranged connecting area. The top edge of the slot 3 located on the upper part of the slotted plate 2 is opened at this connecting area, so that the opening direction of the slot 3 changes from the horizontal direction of the lower middle part to the vertical direction of the upper part. By opening the slot that is exposed upwards, it is convenient for the fastener 10 to be inserted into the slot 3, thereby improving the assembly convenience.

[0033] In this embodiment, a vertical part 6 is provided between the slotted area 4 located below the grooved plate 2 and the limiting area 7. The bottom edge of the vertical part 6 is flush with the top edge of the lower inclined part 5 and respectively forms a wide opening section 8 and a narrow opening section 9 corresponding to the buckle groove 3. The vertical part 6 is provided between the slotted area 4 and the limiting area 7 at the lower part of the grooved plate 2, which not only provides a setting area for the wide opening section 8 of the lower buckle groove 3, but also allows the vertical position of the vertical part 6 to be flush with the upper limiting area 7, so that the limiting area 7 and the vertical part 6 can contact the buckle plate 1 together, thereby increasing the contact area and improving the positioning reliability of the buckle plate 1. Furthermore, since the lower part of the groove plate 2 occupies the space for the lower inclined part 5 due to the vertical part 6, the height of the upper inclined part 5 of the groove plate 2 is significantly greater than that of the lower inclined part 5. By setting different inclination angles on the two inclined parts 5, the difference in horizontal offset caused by the difference in vertical height is compensated, ensuring that the bottom edge of the inclined part 5 has the same horizontal pulling amplitude for the corresponding fastener 10. This ensures that the fastener 1 can fit tightly with the groove plate 2, and also ensures that the fastener 1 and the groove plate 2 remain parallel after being fastened in place.

[0034] Furthermore, since the buckle groove 3 located above the groove plate 2 does not have a vertical part 6, the top edge of the inclined part 5 above the groove plate 2 can be located in the same vertical plane as the limiting area 7. This allows the top edge of the inclined part 5 above the groove plate 2 to serve as a second support point for the auxiliary limiting area 7 to abut and limit the buckle plate 1. By increasing the number of contact points between the groove plate 2 and the buckle plate 1, the reliability of the abutment positioning is improved, which should also be considered as a specific implementation of this embodiment.

[0035] Example 2: Compared to Embodiment 1, this embodiment provides a bed frame.

[0036] like Figure 7 The bed frame shown includes a bed support 16 and a backrest 17 disposed at the front edge of the bed support 16. At least two sets of fastening components are provided between the bed support 16 and the backrest 17. The fastening plate 1 is fixed to the bed support 16 by fasteners disposed at its periphery, and the groove plate 2 is fixed to the backrest 17 by fasteners disposed at its periphery. The front edge of the bed support 16 is first raised and drives the fastener 10 to insert into the wide opening section 8, and then falls and drives the fastener 10 to snap into the narrow opening section 9.

[0037] In this embodiment, the buckle plate 1 is fixed to the bed support 16 by fasteners, and the groove plate 2 is fixed to the backrest 17 by fasteners. The bed support 16 can use its own weight to drive the fastener 10 to fall into the narrow section 9 of the buckle groove 3 so that the fastener 10 is tightly fastened to the buckle groove 3.

[0038] In this embodiment, the backrest 17 is installed at the front edge of the bed support 16. A front-to-back assembly gap is reserved between the wide section 8 of the buckle groove 3 and the buckle part 13. During installation, the front edge of the bed support 16 is lifted and the rear edge overlaps the ground. The buckle plate 1 on the front wall of the bed support 16 is in an inclined state. The fastener 10 located below the buckle plate 1 will first be horizontally inserted into the wide section 8 of the corresponding buckle groove 3 because it is closer to the backrest 17. The fastener 10 located above the buckle plate 1 will use the front-to-back assembly gap to eliminate the problem of vertical projection offset of the fastener 10 caused by the inclination of the buckle plate 1, so that the fastener 10 above the buckle plate 1 can also be inserted into the corresponding buckle groove 3 at the same time, effectively improving the convenience of disassembly and assembly.

[0039] The other structures and effects of the fastening assembly described in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

[0040] Example 3: Compared to Embodiment 1, this embodiment provides a bed support.

[0041] like Figure 8 The illustrated modular bed frame includes a first support 18 and a second support 19, which are fixedly connected by at least two sets of fastening components to form the bed frame. The modular design facilitates processing, transportation, and storage, and also allows for quick assembly and disassembly at the point of use, improving the user experience.

[0042] In this embodiment, the first support 18 and the second support 19 can be assembled in either a front-to-back direction or a left-to-right direction to meet usage requirements, and both should be considered as specific implementation methods of this embodiment.

[0043] The other structures and effects of the fastening assembly described in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

Claims

1. A fastening assembly with good locking effect, comprising a fastening plate (1) and a groove plate (2), wherein the fastening plate (1) comprises two vertically separated fasteners (10), and the groove plate (2) is provided with fastening grooves (3) for corresponding fastening of the fasteners (10), characterized in that, The groove plate (2) includes two slotted areas (4) for corresponding buckle slots (3) and a limiting area (7) between the slotted areas (4). The slotted area (4) includes an inclined portion (5) with an inclined guide surface (11). The buckle slot (3) includes a narrow section (9) on the inclined portion (5) and a wide section (8) above the narrow section (9). The fastener (10) passes through the wide section (8) and slides down to the narrow section (9). The fastener (10) slides along the inclined guide surface (11) and pulls the two ends of the buckle plate (1) toward the groove plate (2) so that the middle part of the buckle plate (1) is tightly attached to the limiting area (7) and locked with the groove plate (2).

2. The fastening assembly with good locking effect according to claim 1, characterized in that, The bottom edge of the inclined guide surface (11) is tilted away from the buckle plate (1) so that the buckle plate (1) is driven to move closer to the groove plate (2) when the fastener (10) slides down along the inclined guide surface (11).

3. A fastening assembly with good locking effect according to claim 2, characterized in that, The inclined guide surface (11) and the groove plate (2) have an included angle A, where A ≥ 1°; or, the bottom edge of the inclined guide surface (11) is offset from the buckle plate (1) by at least 1 mm.

4. A fastening assembly with good locking effect according to claim 1, characterized in that, The fastener (10) is cross-shaped and includes a vertical connecting part (12) and a horizontal fastening part (13). The two ends of the connecting part (12) are connected to the buckle plate (1) respectively, and the two ends of the fastening part (13) can slide against the inclined guide surface (11).

5. A fastening assembly with good locking effect according to claim 4, characterized in that, The end edge of the fastening part (13) is an arc-shaped surface with a raised center to reduce the contact area between the fastening part (13) and the inclined guide surface (11); or, the inclined guide surface (11) is provided with flush positioning grooves (14) on both sides of the bottom of the narrow section (9). When the fastener (10) slides into place along the inclined guide surface (11), the bottom edge of the fastening part (13) is locked in the positioning groove (14) and forms a positioning prompt sound by impact.

6. A fastening assembly with good locking effect according to claim 4, characterized in that, The connecting part (12), the fastening part (13) and the buckle plate (1) are an integral structure. The buckle plate (1) is formed by cutting and pressing to form the fastener (10); or, the width of the connecting part (12) matches the width of the narrow section (9) to eliminate the gap generated after the two are inserted; or, the width of the fastening part (13) is smaller than the width of the wide section (8).

7. A fastening assembly with good locking effect according to any one of claims 1-6, characterized in that, The groove plate (2) includes a working surface that rises toward the buckle plate (1) and a connecting surface (15) provided at the edge of the working surface. The working surface forms the slotted area (4) and the limiting area (7) through regional undulation changes.

8. A fastening assembly with good locking effect according to claim 7, characterized in that, The top edge of the slotted area (4) located above the slotted plate (2) is located at the junction of the working surface and the connecting surface (15), and the top edge of the wide section (8) of the corresponding slot (3) is exposed upwards; or, a vertical part (6) is provided between the slotted area (4) below the slotted plate (2) and the limiting area (7), and the bottom edge of the vertical part (6) is flush with the top edge of the lower inclined part (5) and the wide section (8) and narrow section (9) of the corresponding slot (3) are respectively opened.

9. A bed frame, comprising a bed support (16) and a backrest (17) disposed at the front edge of the bed support (16), characterized in that, At least two sets of fastening components as described in any one of claims 1-9 are provided between the bed support (16) and the backrest (17). The fastening plate (1) is fixed to the bed support (16) by fasteners provided on its periphery. The groove plate (2) is fixed to the backrest (17) by fasteners provided on its periphery. The front edge of the bed support (16) is first raised and drives the fastener (10) to insert into the wide opening section (8), and then falls and drives the fastener (10) to snap into the narrow opening section (9).

10. A bed support, comprising a first support body (18) and a second support body (19), characterized in that, The first support (18) and the second support (19) are fixedly connected by at least two sets of fastening components as described in any one of claims 1-8, so that the first support (18) and the second support (19) are spliced ​​together to form the bed support (16).

Images