Anti-deformation buckle type keel framework

Abstract

The utility model relates to the technical field of building keel, disclose a kind of anti-deformation buckle type keel framework, including keel framework and buckle assembly, the upper end surface of keel framework is equipped with upper clamping slot, upper clamping slot is regular and is open type structure, its two side walls have inclination, top opening extends with clamping block inside, form accommodating space, ensure the positioning when bottom layer clamping plate is embedded. The bottom surface of keel framework is equipped with lower clamping slot. The utility model passes through the modularization design of buckle assembly, only need to oppositely set when two groups of keel framework splicing, bottom layer clamping plate and upper layer clamping plate are respectively embedded two side clamping slots, middle layer clamping plate supports, through screw rod and is locked, significantly improve assembly efficiency, and it is more quick and convenient between keel framework Installation.

Description

Technical Field

[0001] This utility model relates to the field of building keel, and in particular to a deformation-resistant snap-on keel frame. Background Technology

[0002] In the fields of architectural decoration, furniture manufacturing, and equipment installation, the keel frame, as a core component of the supporting structure, directly affects project quality and operational safety due to its connection reliability and assembly efficiency. Existing keel frame connection methods mainly suffer from two types of technical bottlenecks:

[0003] Existing keel frames mostly use bolt fixing or plug-in snap-fit ​​connections. Bolt fixing requires pre-drilling fixing holes in the keel, necessitating precise alignment during installation, resulting in low efficiency. While plug-in snap-fit ​​connections offer rapid installation, significant shortcomings exist in the mechanical design, anti-loosening mechanisms, and adjustability of the snap-fit ​​structure, making its reliability insufficient for high-intensity, high-frequency vibration, or complex installation scenarios. Furthermore, long-term use can lead to gaps due to vibration or uneven stress, causing structural loosening and ultimately, overall structural detachment. Therefore, we propose a deformation-resistant snap-fit ​​keel frame. Utility Model Content

[0004] To address the technical problem of unstable connection in existing snap-fit ​​methods, this utility model provides a deformation-resistant snap-fit ​​keel frame.

[0005] This utility model is achieved using the following technical solution: a deformation-resistant snap-fit ​​keel frame, comprising a keel frame and snap-fit ​​components. The upper end face of the keel frame has an upper snap-fit ​​groove with a regular open structure. Its side walls are inclined, and a snap-fit ​​block extends inward from the top opening to form a receiving space, ensuring the positioning of the bottom snap-fit ​​plate when embedded. The bottom surface of the keel frame has a lower snap-fit ​​groove.

[0006] The lower slot has a rectangular opening, with vertically installed side walls and a straight locking block extending inward from the top opening. The latching assembly includes a bottom locking plate, a middle locking plate, and an upper locking plate. The bottom, middle, and upper locking plates are threaded together by a through screw. During the installation of the two sets of keel frames, the upper locking slots of one set of keel frames are opposite to those of the other set. The bottom and upper locking plates are respectively locked into the upper locking slots of the two sets of keel frames, with the middle locking plate located between the two sets of keel frames. Threaded holes are provided on the surfaces of the bottom, middle, and upper locking plates, and locking nuts are threaded onto the surfaces of the through screws. Nut washers are provided on the contact surfaces of the locking nuts and each set of locking plates.

[0007] As a further optimization of this utility model, the two side walls of the upper slot are designed as inwardly inclined slopes with inverted trapezoidal blocks extending inward from the top opening; when the bottom plate is embedded in the upper slot, the inclined side walls and the edge of the plate form a wedge-tight effect, and the lateral load is transmitted to the main body of the keel frame through the slope, reducing the stress directly acting on the edge of the slot.

[0008] As a further optimization of this utility model, the lower slot has a rectangular opening structure, with both side walls installed vertically, and a straight locking block extending inward from the top opening to form a receiving space. The receiving space of the lower slot is larger than that of the upper slot, ensuring the stability of the keel frame installation.

[0009] As a further optimization of this utility model, the middle layer plate is located between the two sets of keel frames. Through the threaded holes of the bottom plate, middle plate and top plate in sequence, a through screw is formed to form a vertical through connection, so as to realize the rapid splicing of multi-module keels.

[0010] As a further optimization of this utility model, when multiple sets of keel frames are installed at the same time, the lower slot will also be installed accordingly and locked by the buckle assembly, providing a wide bottom support for the keel frame during installation. When the overall structure bears a vertical load, the wide space of the lower slot can disperse the bottom stress and avoid the keel tilting or deformation caused by uneven force.

[0011] As a further optimization of this utility model, when the two sets of keel frames are spliced, the connection is achieved by the relative setting of the upper slots. The upper slots of one set of keel frames are opposite to the opening direction of the upper slots of the other set, forming a symmetrical assembly space. The bottom plate and the upper plate are respectively embedded in the upper slots of the two sets of keel frames, and the lateral positioning is achieved by using the accommodating space of the slots.

[0012] As a further optimization of this utility model, the through screw passes through the bottom plate, the middle plate, and the top plate through the threaded hole. The thread on the surface of the screw and the thread inside the threaded hole are precisely matched to form an axial tension force.

[0013] As a further optimization of this utility model, the locking nut and the nut washer are respectively disposed on the upper and lower surfaces of the bottom plate, the middle plate, and the upper plate, and cooperate with each other to lock together. By tightening the locking nut, the nut washer presses against the surface of the plate, tightly clamping the multi-layer plates into a whole and offsetting the lateral shear force.

[0014] As a further optimization of this utility model,

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses a modular design of buckle components. When splicing two sets of keel frames, only the upper slots need to be set opposite each other. The bottom and upper plates are respectively embedded into the slots on both sides, the middle plate provides support, and the screws are used for through locking. This significantly improves assembly efficiency and makes the installation between keel frames faster and more convenient.

[0017] 2. This utility model uses the inwardly inclined slopes on both sides of the upper slot and the inverted trapezoidal block design at the top to create a wedge-tight effect when the bottom plate is embedded. This transmits the lateral load to the main body of the keel frame through the inclined slopes, reducing stress concentration at the edge of the slot, significantly improving positioning accuracy and resistance to deformation, and effectively solving the problem of easy deformation of existing buckle structures due to uneven stress.

[0018] 3. The lower slot of this utility model adopts a rectangular opening, vertical sidewalls and a flat top slot structure, and the accommodating space is larger than that of the upper slot. During installation, it can provide a wide bottom support, effectively disperse the bottom stress when bearing vertical loads, avoid the keel tilting or deformation, and enhance the overall structural installation stability.

[0019] 4. This utility model uses a snap-fit ​​assembly to connect the bottom, middle and top snap-fit ​​plates through a threaded through screw. The screw and the threaded hole are precisely matched to form an axial tension force, which can quickly splice multi-module keels, improve assembly flexibility, and solve the problem of low efficiency caused by the need for precise alignment of holes in existing keel connections. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Schematic diagram of the middle section of the structure;

[0022] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure of region A in the middle;

[0023] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure of region B in the middle;

[0024] Figure 5 This is a schematic diagram of the disassembly and assembly structure of the keel frame of this utility model;

[0025] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure of region C in the middle;

[0026] Figure 7 This is a schematic diagram of the connection structure of the snap-fit ​​assembly of this utility model.

[0027] Explanation of key symbols:

[0028] 1. Keel frame; 2. Upper slot; 3. Lower slot; 4. Buckle assembly; 41. Bottom plate; 42. Middle plate; 43. Upper plate; 44. Threaded hole; 45. Through bolt; 46. Locking nut; 47. Nut washer. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] Example 1:

[0031] Please combine Figures 1-7 This embodiment proposes an anti-deformation snap-on keel frame, including a keel frame 1 and a snap-on assembly 4. The upper end face of the keel frame 1 is provided with an upper snap-on slot 2. The upper snap-on slot 2 has a regular open structure, and its two side walls have an inclination. The top opening extends inward with a snap-on block to form an accommodating space to ensure the positioning of the bottom snap-on plate 41 when it is embedded.

[0032] A further technical solution is that the two side walls of the upper slot 2 are designed as inwardly inclined slopes with inverted trapezoidal blocks extending inward from the top opening; when the bottom plate 41 is embedded in the upper slot 2, the inclined side walls and the edge of the plate form a wedge-tight effect, and the lateral load is transmitted to the main body of the keel frame through the slope, reducing the stress directly acting on the edge of the slot.

[0033] The bottom surface of the keel frame 2 is provided with a lower slot 3; the lower slot 3 has a rectangular opening structure, with the two side walls installed vertically, and the top opening extends inward with a straight locking block to form a receiving space. The receiving space of the lower slot 3 is larger than that of the upper slot 2, ensuring the stability of the keel frame 1 during installation.

[0034] A further technical solution involves a rectangular opening in the lower slot 3, with vertically installed side walls and a top opening extending inwards to form a straight locking block. Its accommodating space is larger than that of the upper slot 2. When multiple sets of keel frames 1 are installed simultaneously, the lower slot 3 will also be installed relative to it, and locked in place by the snap-fit ​​assembly 4. Figure 2 As shown, the bottom wide support is provided for the keel frame 1 during installation. When the overall structure is subjected to vertical load, the wide space of the lower slot 3 can distribute the bottom stress and avoid the keel tilting or deformation caused by uneven force.

[0035] The snap-fit ​​assembly 4 includes a bottom snap-fit ​​plate 41, a middle snap-fit ​​plate 42, and an upper snap-fit ​​plate 43. The bottom snap-fit ​​plate 41, the middle snap-fit ​​plate 42, and the upper snap-fit ​​plate 43 are threaded together by a through screw 45. During the installation of the two sets of keel frames 1, the upper snap-fit ​​slot 2 of one set of keel frames 1 is opposite to the upper snap-fit ​​slot 2 of the other set. The bottom snap-fit ​​plate 41 and the upper snap-fit ​​plate 43 are respectively snapped into the upper snap-fit ​​slots 2 of the two sets of keel frames 1, and the middle snap-fit ​​plate 42 is located between the two sets of keel frames 1.

[0036] In the specific technical solution, when the two sets of keel frames 1 are spliced, they are connected by the relative arrangement of the upper slots 2. The upper slots 2 of one set of keel frames are opposite to the opening direction of the upper slots 2 of the other set, forming a symmetrical assembly space. The bottom plate 41 and the upper plate 43 are respectively embedded in the upper slots 2 of the two sets of keel frames, and the accommodating space of the slots is used to achieve lateral positioning. The middle plate 42 is located between the two sets of keel frames. Through the through screw 45, it passes through the threaded holes 44 of the bottom plate 41, the middle plate 42 and the upper plate 43 in sequence to form a vertical through connection, realizing the rapid splicing of multi-module keels.

[0037] Threaded holes 44 are provided on the surfaces of the bottom plate 41, the middle plate 42 and the top plate 43. Locking nuts 46 are threadedly connected to the surface of the through screw 45. Nut washers 47 are provided on the contact surfaces of the locking nuts 46 and each set of plates.

[0038] The locking nut 46 and the nut washer 47 are respectively disposed on the upper and lower sides of the bottom plate 41, the middle plate 42 and the upper plate 43 and cooperate with each other to lock.

[0039] It should be noted that the locking nut 46 and the nut washer 47 are respectively provided on the upper and lower sides of the bottom plate 41, the middle plate 42 and the upper plate 43 and cooperate with each other to lock.

[0040] More specifically, the through screw 45 passes through the threaded hole 44 through the bottom clamping plate 41, the middle clamping plate 42, and the top clamping plate 43. The thread on the surface of the screw and the internal thread of the threaded hole 44 are precisely matched to form an axial tension force. The locking nut 46 and the nut washer 47 are respectively set on the upper and lower surfaces of each clamping plate. By tightening the locking nut 46, the nut washer 47 presses against the surface of the clamping plate, tightly clamping the multi-layer clamping plates into a whole and offsetting the lateral shear force.

[0041] The overall workflow of this utility model is described below:

[0042] I. Modular Assembly Principle

[0043] When the two sets of keel frames 1 are spliced, they are connected by the relative setting of the upper slots 2. The upper slots 2 of one set of keel frames are opposite to the opening direction of the upper slots 2 of the other set, forming a symmetrical assembly space.

[0044] The bottom plate 41 and the upper plate 43 are respectively embedded in the upper slots 2 of the two sets of keel frames, and the horizontal positioning is achieved by utilizing the accommodating space of the slots.

[0045] The middle plate 42 is located between the two sets of keel frames. Through the through screws 45, it passes through the threaded holes 44 of the bottom plate 41, the middle plate 42 and the top plate 43 in sequence to form a vertical through connection, realizing the rapid splicing of multi-module keels.

[0046] II. Slot positioning and anti-deformation mechanism

[0047] wedge positioning of upper slot 2

[0048] The upper slot 2 has two sides of inclined slope with the top opening extending inward with an inverted trapezoidal block; when the bottom plate 41 is inserted into the upper slot 2, the inclined side wall and the edge of the plate form a wedge effect, and the lateral load is transmitted to the main body of the keel frame through the inclined surface, reducing the stress directly acting on the edge of the slot.

[0049] Stable support for lower card slot 3

[0050] The lower slot 3 has a rectangular opening, with vertically installed side walls and a top opening extending inwards to form a straight locking block. Its accommodating space is larger than the upper slot 2. When multiple sets of keel frames 1 are installed simultaneously, the lower slot 3 will also be installed relative to it, locked together by the snap-fit ​​assembly 4 (e.g., ...). Figure 2 As shown), it provides a wide bottom support for the keel frame 1 during installation. When the overall structure is subjected to vertical load, the wide space of the lower slot 3 can distribute the bottom stress and avoid the keel tilting or deformation caused by uneven force.

[0051] III. Fastening and Anti-Loosening Principles of Locking Structures

[0052] Threaded connection of multi-layer card plate

[0053] The through screw 45 passes through the threaded hole 44 through the bottom clamping plate 41, the middle clamping plate 42, and the top clamping plate 43. The thread on the surface of the screw and the internal thread of the threaded hole 44 are precisely matched to form an axial tension force. The locking nut 46 and the nut washer 47 are respectively set on the upper and lower surfaces of each clamping plate. By tightening the locking nut 46, the nut washer 47 presses against the surface of the clamping plate, tightly clamping the multi-layer clamping plates into a whole and offsetting the lateral shear force.

[0054] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A deformation-resistant snap-fit ​​keel frame, characterized in that, It includes a keel frame (1) and a buckle assembly (4). The upper end face of the keel frame (1) is provided with an upper buckle slot (2), and the bottom face of the keel frame (1) is provided with a lower buckle slot (3). The buckle assembly (4) includes a bottom plate (41), a middle plate (42) and an upper plate (43). The bottom plate (41) and the upper plate (43) are respectively snapped into the upper slots (2) of the two sets of keel frames (1). The bottom plate (41), the middle plate (42), and the top plate (43) are threaded together by a through screw (45). Threaded holes (44) are provided on the surfaces of the bottom plate (41), the middle plate (42), and the top plate (43). Locking nuts (46) are threadedly connected to the surface of the through screw (45). Nut washers (47) are provided on the contact surfaces of the locking nuts (46) and each set of plates. The locking nuts (46) and nut washers (47) are respectively provided on the upper and lower surfaces of the bottom plate (41), the middle plate (42), and the top plate (43) and cooperate with each other to lock together.

2. The anti-deformation snap-on keel frame as described in claim 1, characterized in that, The upper slot (2) has a regular open structure with inclined side walls and a top opening extending inward to form a receiving space to ensure the positioning of the bottom card plate (41) when it is embedded.

3. The anti-deformation snap-on keel frame as described in claim 1, characterized in that, The lower slot (3) has a rectangular opening structure with vertically installed side walls. The top opening extends inward with a straight locking block to form a receiving space. The receiving space of the lower slot (3) is larger than that of the upper slot (2), ensuring the stability of the keel frame (1) installation.

4. The anti-deformation snap-on keel frame as described in claim 1, characterized in that, During the installation of the two sets of keel frames (1), the upper slot (2) of one set of keel frames (1) is opposite to the upper slot (2) of the other set; the middle layer plate (42) is located between the two sets of keel frames (1).

5. The anti-deformation snap-on keel frame as described in claim 1, characterized in that, The threaded hole (44) is an elongated groove through which the threaded screw (45) passes.

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