A frame construction

Abstract

Frame construction comprising vertical side frames and horizontal side frames, wherein the vertical side frames and horizontal side frames are connected to each other via corner connectors, wherein the vertical side frames and / or horizontal side frames comprise at least two frame segments which are connected to each other by a locking component, characterized in that that the locking component comprises a locking bar and an eccentric handle; wherein the eccentric handle comprises a handle body and an eccentric wheel, the eccentric wheel being provided with a pin hole and the eccentric wheel of the eccentric handle being connected to a side of the locking bar via a pin shaft; wherein a locking slot is provided along the longitudinal direction of the frame segment, the slot opening of the locking slot tapers inwards, so that the width of the slot opening is less than the inner width of the slot; wherein during the connection one end of the locking bar is inserted into the locking slot of a frame segment and secured, while the other end is inserted into the locking slot of the connected frame segment, wherein the eccentric handle is aligned with the slot opening of the locking slot, wherein the distance between the pin shaft and the bottom of the locking slot is increased by rotating the eccentric handle along the slot opening of the locking slot via the eccentric wheel, thereby raising the locking bar until it is firmly seated in the locking slot and thus ensuring a locking connection between the two frame segments.

Description

TECHNICAL AREA

[0001] The present utility model relates to the field of exhibition presentation and in particular to a quickly assembled frame construction. STATE OF THE ART

[0002] As society develops, the flexible and rapid construction of various display frames for presenting and promoting goods at conferences, exhibitions, and trade fairs is becoming increasingly important for businesses. Fabric frames and light boxes for exhibitions are very widely used display equipment. The main structure is a combination of display frame, screen, and lighting, which can be temporarily set up to form a large display wall or set up independently to create a small advertising panel.

[0003] The existing standalone structure is a rectangular frame structure that is assembled on-site using profiles, connectors, and locks, which is not suitable for uniform storage and transport; furthermore, the assembly of the exhibition frame structure is complicated and requires the use of many connecting parts, making on-site setup time-consuming and inefficient, and many of the connecting parts can easily be missing or confused, making reuse difficult.

[0004] While existing popular folding display stands do not require on-site assembly, they still suffer from problems such as complex structures, high production costs, and insufficient stability. For example, the folding structure described in patent application 2023116450318 uses an extremely complicated central rotating mechanism, and securing the entire frame requires additional supports; furthermore, certain folding designs incorporate additional components such as cylinders, which significantly increases production costs and renders them unsuitable for certain application requirements. CONTENTS OF THE PRESENT USE SAMPLE

[0005] To overcome the aforementioned disadvantages, the present utility model offers a frame construction characterized by its simple design and easy assembly. This design results in a more compact overall package, facilitates transport, and allows for tool-free installation.

[0006] To achieve the aforementioned goal, the utility model uses the following technical solutions: Frame construction comprising vertical side frames and horizontal side frames, wherein the vertical side frames and horizontal side frames are connected to each other via corner connectors, wherein the vertical side frames and / or horizontal side frames comprise at least two frame segments which are connected to each other by a locking component, characterized in that that the locking component comprises a locking bar and an eccentric handle; wherein the eccentric handle comprises a handle body and an eccentric wheel, the eccentric wheel being provided with a pin hole and the eccentric wheel of the eccentric handle being connected to a side of the locking bar via a pin shaft; wherein a locking slot is provided along the longitudinal direction of the frame segment, the slot opening of the locking slot tapers inwards, so that the width of the slot opening is less than the inner width of the slot; wherein during the connection one end of the locking bar is inserted into the locking slot of a frame segment and secured, while the other end is inserted into the locking slot of the connected frame segment, wherein the eccentric handle is aligned with the slot opening of the locking slot, wherein the distance between the pin shaft and the bottom of the locking slot is increased by rotating the eccentric handle along the slot opening of the locking slot via the eccentric wheel, thereby raising the locking bar until it is firmly seated in the locking slot and thus ensuring a locking connection between the two frame segments.

[0007] To improve the reliability of the connection and to provide double protection, the handle body of the eccentric handle is preferably provided with a barb, wherein the underside of the locking slot of the connected frame segment is provided with a corresponding groove, the barb engages in the corresponding groove when the locking component is locked.

[0008] To further ensure the reliability of the connection and to minimize wobbling or relative displacement, the locking bar and the locking slot are matched in shape and size.

[0009] To further ensure connection stability and guarantee installation speed, the locking component also includes at least two positioning pins, one end of which is attached to the end face of a frame segment, while the other end is inserted into a corresponding positioning hole of the connected frame segment.

[0010] Preferably, the positioning holes and the locking slot are not located on the same horizontal plane, and the two positioning holes and the locking slot form an equilateral structure. This equilateral trapezoidal configuration ensures the reliability, stability, and load-bearing capacity of the connection between the two side frames. In a preferred embodiment, the locking bar is attached to the side of the eccentric handle to form a U-shaped structure. This facilitates the installation of the eccentric handle and ensures a more even distribution of force on both sides.

[0011] Preferably, the end of the handle body furthest from the eccentric wheel is provided with a locking handle, the width of which exceeds the width of the locking slot opening. At least one corresponding groove, capable of receiving the locking handle, is provided along one side of the connected frame segment corresponding to the locking slot. During connection, the locking handle engages in the corresponding groove to achieve the positional connection of the two frame segments. The configuration described above provides multi-layered structural protection between the frame segments and prevents loosening due to vibration or accidental actuation.

[0012] Preferably, the two connecting ends of the corner connector are provided with at least one set of locking components, wherein one end of the locking strip of the locking component is fixedly connected to the connecting end of the corner connector and the other end of the locking strip is locked to the corresponding end face of the frame segment via an eccentric handle. This enables a quick connection between the corner connector and the frame segment.

[0013] In a preferred embodiment, the side of the locking bar furthest from the eccentric handle has a threaded hole. A screw is associated with this threaded hole and is screwed into it during assembly to gradually raise the locking bar, ultimately achieving a secure fit between the locking bar and the upper wall of the locking slot. This locking mechanism is analogous to that of the eccentric wheel, as both rely on a secure fit between the locking bar and the upper wall of the locking slot to ensure a reliable lock and connection. This guarantees the reliability of the connection and increases stability once the locking bar is engaged.

[0014] The advantages of the present utility model include: 1. The structure of the present utility model is simple and ingeniously designed. The side frame is formed by combinations of frame segments, thereby significantly reducing the transport volume and achieving a smaller footprint than the intermediate folding structures described in the background technology; the corner connectors join the frame segments together, and the frame segments are connected to each other via pre-installed locking components, resulting in a fast, modular connection structure, which significantly improves installation efficiency. 2. The structure of the present utility model is stable, and an equilateral three-point connection is formed between the frame segments, the structure ensuring reliable, stable connections with improved load-bearing capacity through direct insertion and connection. 3. This utility model requires no additional tools for on-site installation. A secure connection is achieved simply by turning an eccentric key, enabling quick assembly and construction anywhere, thus meeting customer requirements and offering convenience and speed. BRIEF DESCRIPTION OF THE DRAWING Fig. Figure 1 is an exploded view of the frame construction in embodiment 1; Fig. 2 is a profile view of the frame segment; Fig. Figure 3 is a structural view of the connection between the frame segments; Fig. Figure 4 is a structural view of the connection of the eccentric handle; Fig. Figure 5 shows a locking view of the eccentric handle; Fig. Figure 6 is a structural view of the connection between the frame segments in embodiment 2; Fig. Figure 7 is an enlarged structural representation of one end of the frame segment in embodiment 2; Fig. Figure 8 is a structural view of the connection between the frame segment and the corner connector in embodiment 3.

[0015] Where: 1. Frame segment; 11. Locking slot; 12. Groove; 13. Slot opening; 14. Groove; 15. Positioning hole; 2. Locking component; 21. Locking bar; 22. Eccentric handle; 221. Handle body; 222. Eccentric wheel; 223. Locking handle; 224. Barb; 225. Pin shaft; 23. Positioning pin; 3. Corner connector; 4. Screw. DETAILED DESCRIPTION

[0016] The technical solution of the present utility model is now clearly and completely described with reference to the figures in this utility model. It is obvious that the described embodiments represent only a portion of the embodiments of the present utility model. Example 1

[0017] As in the Fig. As shown in Figure 1, this example refers to a frame construction primarily used for building display light boxes. The frame consists of vertical and horizontal frames connected by corner connectors 3. In this design, both the vertical and horizontal side frames have two frame segments 1 connected by locking components 2. This design utilizes a segmented frame construction, enabling modular manufacturing of the entire product while also facilitating compact packaging. The product can be packaged in a handbag-like format.

[0018] In this embodiment, both vertical and horizontal side frames utilize a two-segment frame structure 1. However, the number of frame segments 1 used for vertical and horizontal side frames depends on the size of the frame at the installation site. For example, in spacious environments, vertical side frames may have a three-segment composite structure, while horizontal side frames may use a two-segment structure or even more segmented combinations; conversely, in confined spaces, the horizontal side frame may have a one-segment structure, while the vertical side frame uses more segmented combinations. This combination is determined by the on-site setup and will not be discussed in detail here. However, if both the vertical and horizontal side frames were to have a one-segment structure, the original intent of this design would be lost.

[0019] As in the Fig. As shown in Figure 3, the locking component 2 in this embodiment comprises a locking bar 21, an eccentric handle 22, and two positioning pins 23. In this embodiment, the locking bar 21 has a rectangular rod structure. To facilitate the installation of the eccentric handle 22, one end of the locking bar is provided with a notch forming a U-shaped configuration; the opposite side of the locking bar has threaded holes, which can be either a single hole or multiple holes, preferably two or three. Regarding the number of positioning pins 23, two pins are the preferred arrangement. In this embodiment, the eccentric handle 22 comprises a handle body 221 and an eccentric wheel 222; the eccentric wheel is provided with a pin hole and engages with a pin shaft 225; the handle body 221 of the eccentric handle has a barb 224.

[0020] To further improve the connection stability and reduce wobble, the locking strip 21 and the locking slot 11 are matched in shape and size, with the size referring to the width dimension. In this embodiment, the locking strip 21 has a rectangular rod structure, while the locking slot 11 also has a rectangular groove structure; should the locking slot 11 be modified to a dovetail groove structure, the locking strip 21 would have to be changed to a rod-shaped structure with a trapezoidal cross-section.

[0021] As in the Fig. As shown in Figure 3, one end of the two positioning pins 23 is attached to the end face of the frame segment 1, while the other end is designed for insertion into the corresponding positioning hole 15 on the connected frame segment. In this embodiment, the locking bar 21 and the two positioning pins 23 are not located on the same horizontal plane. Since the locking bar 21 has a rectangular rod structure, the combination of the locking bar 21 and the two positioning pins 23 forms an isosceles trapezoidal structure, an arrangement that ensures greater stability when the two frame segments 1 are connected. Conversely, the two positioning holes 15 and the locking slot 11 also form an isosceles trapezoidal structure.

[0022] As in the Fig. As shown in Figure 2, the structural form of the frame segment 1 in this embodiment is a rectangular cuboid whose length is adjustable according to the site requirements. The frame segment 1 has a locking slot 11 along each of its front and rear broad faces in the longitudinal direction, and the slot opening 13 of the locking slot tapers inwards so that the width of the slot opening is less than the inner width of the slot, thus limiting the position of the inserted locking bar 21. In this embodiment, the locking slot 11 has a regular rectangular groove structure, which is chosen for reasons of profile machinability and structural integrity. Of course, alternatives such as C-shaped grooves or dovetail grooves are also possible, provided that the structure of the locking bar 21 is adapted accordingly.

[0023] As in the Fig. As shown in Figures 3 to 5, a groove 12 is provided corresponding to the position of the barb 224 after the eccentric handle has been pressed down on the bottom of the locking slot 11. This additionally ensures the longitudinal stability of the two frame segments 1 after they are joined.

[0024] As in the Fig. As shown in Figure 2, the frame segments 1 on the left and right sides feature a locking groove and a lighting channel for installing light strips, thus accommodating the construction of display light boxes. To achieve shadow-free illumination, electrical connection terminals are integrated at both ends of the frame segments. Of course, these are adaptive modifications rather than entirely new innovations.

[0025] As in the Fig. As shown in Figure 2, corresponding positioning holes 15 are provided on the end face of the frame segment to facilitate the insertion of the positioning pin 23, enabling a quick connection between the two segments; at the same time, these holes can form stable isosceles triangular or isosceles trapezoidal connection structures with the locking slot.

[0026] During assembly or at the factory, the eccentric handle 22 is attached to the corresponding position on the locking bar 21 by the interaction of the pin hole and the pin shaft 225; then the positioning pin 23 and the locking bar 21 are firmly mounted on the frame segment 1; when mounting the locking bar 21, a screw 4 is inserted into the threaded hole of the locking bar, whereby the locking bar 21 is inserted into the locking slot 11 of the corresponding frame segment, the position of the threaded hole corresponding to the position of the slot opening 13 of the locking slot; to secure the locking bar, the screw 4 is screwed into the threaded hole, gradually raising the locking bar 21 until it rests firmly against the upper wall of the locking slot.

[0027] As in the Fig. 4 and Fig. As shown in Figure 5, when connecting frame segments, the positioning pin 23 and the opposite half of the locking bar 21 are simply inserted into the corresponding positioning hole 15 and the locking slot 11 of the other frame segment, with the eccentric handle 22 being aligned with the slot opening 13 of the locking slot; the eccentric handle is rotated along the slot opening 13 of the locking slot, and the distance H between the pin shaft 225 and the bottom of the locking slot increases via the eccentric wheel 222, thereby raising the locking bar 21, and ultimately achieving a tight fit between the locking bar and the locking slot, thus securing the positional connection of the two frame segments 1.It should be noted that the insertion length of the positioning pin 23 and the locking bar 21 into the other frame segment can be preset as required or determined by the groove and barbs on the bottom of the locking slot.

[0028] The connection structure of the frame segments described in this embodiment is simple and practical, featuring a sophisticated locking mechanism. The locking component is factory-installed, enabling quick and convenient, tool-free on-site installation. Example 2

[0029] As in the Fig. 6 and Fig. As shown in Figure 7, the embodiment represents a further development based on embodiment 1 and includes in particular a locking handle 223 which is positioned at one end of the handle body away from the eccentric wheel, wherein the width of the locking handle 223 exceeds the width of the slot opening 13 of the locking slot, wherein at least one corresponding groove 14, which can receive the locking handle, is provided along one side of the connected frame segment corresponding to the locking slot, wherein during the locking of the frame segments the locking handle 223 engages in the corresponding groove 14 in order to achieve the positional connection of the two frame segments.

[0030] When the eccentric handle 22 is pressed, the barb 224 on the eccentric handle in this embodiment is operatively connected with the groove 12 on the bottom of the locking slot, while the locking handle 223 engages with the groove 14, thereby achieving a double locking mechanism for the connection between the two frame segments 1, thus improving the stability and reliability of the connection. Example 3

[0031] As in the Fig.As shown in Figure 8, this embodiment represents a further development based on embodiment 2. To enable a faster and more convenient connection between the corner connector 3 and the frame segment 1, a locking component 2 is fixedly connected to one end of the corner connector in this embodiment; in particular, the positioning pin 23 and one end of the locking bar 21 are fixedly attached to one end of the corner connector. When the corner connector 3 is connected to another frame segment, only the other half of the positioning pin 23 and the locking bar 21 needs to be inserted into the corresponding positioning hole 15 and the locking slot 11 of the connected frame segment, and then the eccentric handle 22 needs to be pressed downwards.

[0032] In this embodiment, to facilitate on-site installation, one end of the corner connector 3 is factory-attached to the frame segment 1, while the other end of the corner connector is provided with a locking component 3. After unpacking at the installation site, this allows for a direct and quick 90-degree connection with other frame segments.

[0033] The terms "front," "back," "left," "right," and similar expressions are used here solely for the detailed description of the exemplary embodiments and figures, thus facilitating a better understanding of the design ideas presented in this application. It is clear to those skilled in the art that the utility model is not limited to the details of the exemplary embodiments described above and that these embodiments are to be considered exemplary and non-limiting in every respect. The scope of the utility model is limited by the accompanying claims, not by the description above, and is therefore intended to encompass all variations that fall within the meaning and scope of the desired features of the claims. Any markings on the figures in the claims are not to be considered as limiting the claims in question.

Claims

[1] Frame construction comprising vertical side frames and horizontal side frames, wherein the vertical side frames and horizontal side frames are connected to each other via corner connectors, wherein the vertical side frames and / or horizontal side frames comprise at least two frame segments which are connected to each other by a locking component, characterized by , that the locking component comprises a locking bar and an eccentric handle; wherein the eccentric handle comprises a handle body and an eccentric wheel, the eccentric wheel being provided with a pin hole and the eccentric wheel of the eccentric handle being connected to a side of the locking bar via a pin shaft; wherein a locking slot is provided along the longitudinal direction of the frame segment, the slot opening of the locking slot tapers inwards, so that the width of the slot opening is less than the inner width of the slot; wherein during the connection one end of the locking bar is inserted into the locking slot of a frame segment and secured, while the other end is inserted into the locking slot of the connected frame segment, wherein the eccentric handle is aligned with the slot opening of the locking slot, wherein the distance between the pin shaft and the bottom of the locking slot is increased by rotating the eccentric handle along the slot opening of the locking slot via the eccentric wheel, thereby raising the locking bar until it is firmly seated in the locking slot and thus ensuring a locking connection between the two frame segments. [2] Frame construction according to claim 1, characterized by, that the handle body of the eccentric handle is provided with a barb, wherein the underside of the locking slot of the connected frame segment is provided with a corresponding groove, the barb engages in the corresponding groove when the locking component is locked. [3] Frame construction according to claim 1, characterized by that the locking bar is shaped and dimensioned to fit into the locking slot. [4] Frame construction according to claim 1 or 2, characterized by , that the locking component further comprises at least two positioning pins, wherein one end of the positioning pin is attached to the end face of a frame segment, while the other end is inserted into a corresponding positioning hole of the connected frame segment. [5] Frame construction according to claim 4, characterized by, that the positioning holes and the locking slot are not on the same horizontal plane and that the two positioning holes and the locking slot form an isosceles structure. [6] Frame construction according to claim 1, characterized by , that the locking bar is attached to the side of the eccentric handle to form a U-shaped structure. [7] Frame construction according to claim 1, characterized by, that the end of the handle body furthest from the eccentric wheel is provided with a locking handle, wherein the width of the locking handle exceeds the width of the slot opening of the locking slot, wherein at least one corresponding groove capable of receiving the locking handle is provided along one side of the connected frame segment corresponding to the locking slot, wherein during the connection the locking handle engages in the corresponding groove to achieve the positional connection of the two frame segments. [8] Frame construction according to claim 1, characterized by, that the two connecting ends of the corner connector are provided with at least one set of locking components, wherein one end of the locking strip of the locking component is firmly connected to the connecting end of the corner connector and the other end of the locking strip is locked to the corresponding end face of the frame segment via an eccentric handle. [9] Frame construction according to claim 1, characterized by , that the side of the locking bar furthest from the eccentric handle has a threaded hole, with a screw associated to the threaded hole which is screwed into the threaded hole when connecting in order to gradually raise the locking bar, thereby finally achieving a tight fit between the locking bar and the upper wall of the locking slot.

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