Art illustration frame

Through innovative design of folding and connecting devices, the problems of large space occupation and unstable connection of illustration frames are solved, realizing flexible folding and quick connection, improving the convenience and safety of use.

CN223590461UActive Publication Date: 2025-11-25LIAONING XIAOLEXUAN CULTURAL IND CO LTD
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Patent Information

Application Number
CN202520054775.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2025-11-25
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

Existing illustration frames are space-consuming, inconvenient to transport and store, cumbersome to connect and disassemble, and have low connection stability, affecting the flexibility and safety of use.

Method used

The innovative design employs a folding device and a connecting device, including a second frame, movable plate, and bushing in the folding device, and a connecting sleeve, plug-in frame, and self-locking mechanism in the connecting device, to achieve multi-directional folding and quick connection of the frame, while ensuring the stability of the connection through the self-locking mechanism.

Benefits of technology

It effectively reduces storage space, improves portability and usage flexibility, simplifies operation, ensures connection stability and security, and extends service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223590461U_ABST
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Abstract

The utility model discloses an art illustration frame which comprises a first frame, a folding device is connected to the outer side of the first frame, a connecting device is arranged on the outer side of the first frame, the connecting device comprises a connecting sleeve, a connecting rod, a control sleeve, an inserting frame, an inserting groove and a control groove, the inserting frame is installed in the control groove, and the inserting groove is formed in the outer side of the connecting rod. The control groove is formed in the inner side of the control sleeve, a self-locking mechanism is arranged on the outer side of the connecting sleeve, the self-locking mechanism comprises an adaptive sleeve, an adaptive groove, an adaptive hole, a self-locking sleeve, a self-locking groove, a limiting plate, a limiting rod, a reset spring and a self-locking rod, the adaptive groove is formed in the adaptive sleeve, the adaptive hole is formed in one end of the adaptive groove, and the multiple self-locking grooves are formed in the outer side of the connecting sleeve. The limiting plate is arranged on the limiting rod, the limiting rod is connected to one side of the self-locking sleeve, one end of the self-locking rod is connected with the control sleeve through the reset spring, the application range of the frame is widened, the use efficiency of the frame is improved, the operation process is simplified, and meanwhile stability and safety in the use process are guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of art design technical field, more specifically, it relates to a kind of art illustration frame. BACKGROUND

[0002] In the modern art design field, illustration frame as an important auxiliary tool, plays an indispensable role in the creation process, designer usually needs to show multiple related pictures or materials simultaneously, in order to compare, reference and inspiration, however, there are some significant limitations in the existing illustration frame technology.

[0003] First, the fixed type illustration frame structure design is a prominent problem, this design presents as an uncollapsible large plane structure, although this design can provide stable display platform when using, it brings a series of practical application troubles, the most obvious problem is that it occupies too much space, in design studio or office environment, space is often valuable resource, a large fixed type illustration frame not only occupies a large area when using, more importantly, it is also difficult to effectively store when not in use, which leads to crowded and messy work environment, which may affect the designer's creative mood and work efficiency, in addition, the transportation and storage of this structure is also a big challenge, when it needs to be transferred to different work sites or stored for a long time, its volume and weight become the main obstacle, which not only increases the difficulty of carrying, but also may cause frame damage due to improper handling.

[0004] Secondly, in view of the above problems, some manufacturers try to launch foldable illustration frame design, this design usually adopts hinge mechanism to connect multiple frame units, which can realize folding storage and unfolding use in theory, however, this improvement solves the problem of storage and transportation to some extent, but introduces new use troubles, the main problem is the complexity of connection and disassembly operation, this design lacks flexibility, in some creative scenarios, designer may only need to use one or several frame units, but not all, however, fixed hinge connection makes it difficult or impossible to use a certain frame unit alone, this limitation seriously affects the practicality and adaptability of illustration frame, which cannot meet the dynamic demand of designers for display area in different creative stages.

[0005] In addition, some manufacturers try to solve the above problems by introducing a quick connection and disconnection mechanism, but these solutions often have to be sacrificed, although these designs improve the flexibility of the frame in some way, allowing designers to quickly assemble or separate frame units as needed, but they usually sacrifice the stability and durability of the structure, and these quick connection devices tend to loosen, wear out or even completely fail over time and frequent use, which not only affects the service life of the frame, but more seriously, it can cause the frame to suddenly separate or collapse during use, causing damage to the pictures or materials being displayed, and even affecting the progress of the designer's creation. Practical new content

[0006] (I) Technical problems solved

[0007] In view of the problems existing in the prior art, the utility model provides an art illustration frame to solve the technical problems mentioned in the background art.

[0008] (II) Technical solutions

[0009] In order to achieve the above purpose, the utility model provides the following technical scheme: an art illustration frame, comprising a first frame, characterized by: a folding device is connected to the outer side of the first frame, a connecting device is arranged on the outer side of the first frame, the connecting device comprises a connecting sleeve, a connecting rod, a control sleeve, a plug-in frame, a plug-in slot and a control slot, the connecting sleeve is detachably sleeved on the outer side of the connecting rod, the control sleeve is rotatably sleeved on the outer side of the connecting sleeve, the plug-in frame is movably installed in the control slot, one end of the plug-in frame is inserted into the plug-in slot through the side wall of the connecting sleeve, the plug-in slot is opened on the outer side of the connecting rod, and the control slot is opened on the inner side of the control sleeve. A self-locking mechanism is arranged on the outer side of the connecting sleeve, the self-locking mechanism comprises an adapter sleeve, an adapter slot, an adapter hole, a self-locking sleeve, a self-locking slot, a limiting plate, a limiting rod, a return spring and a self-locking rod, the adapter sleeve is rotatably sleeved on the outer side of the connecting sleeve, the adapter slot is opened on the adapter sleeve, the adapter hole is opened at one end of the adapter slot, the self-locking sleeve is slidably sleeved on the outer side of the connecting sleeve, a plurality of self-locking slots are opened on the outer side of the connecting sleeve, the limiting plate is arranged on the limiting rod, the limiting rod is connected to one side of the self-locking sleeve, one end of the self-locking rod is connected to the outer wall of the control sleeve through the return spring, and the other end of the self-locking rod is inserted into the self-locking slot.

[0010] The utility model is further provided with a spring connected to the inner side of the plug-in frame, and the other end of the spring is connected to the outer wall of the connecting sleeve.

[0011] The utility model is further provided with a guide groove opened on the outer side of the connecting rod, a guide rail fixedly arranged in the connecting sleeve, and the guide groove and the guide rail are matched.

[0012] The utility model further sets up, the push spring is set outside the limit rod, and one end of the push spring is in contact with the adaptive sleeve.

[0013] The utility model further sets up, the folding device includes second frame, first movable plate, second movable plate and shaft sleeve, the second frame is movably arranged in one side of first frame, the first movable plate is detachably installed in the back side of first frame, the second movable plate is detachably installed in the back side of second frame, and the shaft sleeve is connected in one side of first movable plate and second movable plate respectively, and the folding device effectively improves the flexibility of equipment use.

[0014] The utility model further sets up, the first movable plate inside is provided with the let -by slot, and the let -by slot is adapted with second movable plate, and the design of let -by slot is mainly for the let -by of second movable plate, prevents interference.

[0015] The utility model further sets up, the second frame one side movably is equipped with third frame, and the first frame one side movably is equipped with fourth frame, and the setting of third frame and fourth frame can show more illustration simultaneously.

[0016] The utility model further sets up, the first frame, second frame, third frame and fourth frame one side all are detachably provided with transparent plate through bolt, and the setting of transparent plate is convenient for fixed and show illustration.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides an art illustration frame, has the following beneficial effects:

[0019] 1, folding device ingeniously solves the problem of large space occupation, inconvenient transportation and storage of illustration frame in the prior art, through the collaborative design of second frame, first movable plate, second movable plate and shaft sleeve and other components, the multidirectional folding function of the frame is realized, this design not only greatly reduces the storage space, but also improves the portability of the frame, especially the design of let -by slot makes the movable plate can be perfectly embedded when folding, further reduces the volume after folding, the addition of third frame and fourth frame increases the display area, while maintaining the convenience of folding, the detachable design of transparent plate facilitates the replacement and protection of illustration, this flexible folding mechanism greatly improves the practicability of illustration frame, so that it can adapt to various working environments and storage conditions.

[0020] 2、The innovative design of the connecting device effectively solves the problem of complicated connection and disassembly operation between the picture frames in the prior art. Through the ingenious cooperation of components such as the connecting sleeve, the connecting rod, the control sleeve, the insertion frame, the insertion slot and the control slot, the quick connection and disassembly between the frame units are realized. This design allows designers to flexibly combine or separate different frame units as needed, greatly improving the flexibility of use. In particular, the application of the control sleeve and the insertion frame makes the connection and disassembly process simple and accurate. The design of the guide slot and the guide rail ensures the accuracy and stability of the connection. This quick connection system effectively simplifies the operation process.

[0021] 3、The design of the self-locking mechanism cleverly solves the problem of low stability of the connecting device. Through the cooperative work of components such as the adapter sleeve, the adapter slot, the adapter hole, the self-locking sleeve, the self-locking slot, the limiting plate, the limiting rod, the return spring and the self-locking rod, a multi-locking system is formed. This design not only ensures the stability of the connecting device after use, but also effectively prevents accidental loosening or falling off. In particular, the application of the return spring and the push spring realizes the automatic reset of multiple components of the self-locking mechanism, further improving the convenience and safety of operation. This multi-level locking design significantly improves the reliability of the entire connection system, effectively dealing with frequent use and various external forces, preventing the connecting device from loosening or shaking, thereby ensuring the long-term stability and service life of the picture frame. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic diagram when a picture frame in the utility model is unfolded.

[0023] Figure 2 It is a whole structure schematic diagram when a picture frame in the utility model is unfolded. Figure 1 It is a local enlarged structure schematic diagram of A in the utility model.

[0024] Figure 3 It is a structure schematic diagram when the utility model is folded.

[0025] Figure 4 It is a sectional structure schematic diagram of the connecting device and the self-locking mechanism part in the utility model.

[0026] Figure 5 It is a local enlarged structure schematic diagram of B in the utility model. Figure 4 It is a local enlarged structure schematic diagram of B in the utility model.

[0027] Figure 6 It is a sectional structure schematic diagram of the connecting device and the self-locking mechanism part in the utility model.

[0028] In the figure: 1, the first frame; 2, connecting sleeve; 3, connecting rod; 4, control sleeve; 5, plug-in frame; 6, plug-in slot; 7, control slot; 8, adapter sleeve; 9, adapter slot; 10, adapter hole; 11, self-locking sleeve; 12, self-locking slot; 13, limiting plate; 14, limiting rod; 15, return spring; 16, self-locking rod; 17, spring; 18, guide slot; 19, guide rail; 20, push spring; 21, the second frame; 22, the first movable plate; 23, the second movable plate; 24, shaft sleeve; 25, let go of the slot; 26, the third frame; 27, the fourth frame; 28, transparent plate. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0031] In the present application, unless otherwise specified, the directions used such as "up, down" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above directional words are not used to limit the present application.

[0032] Please refer to Figures 1-6The utility model relates to an art picture frame, which comprises a first frame 1, characterized in that a folding device is connected to the outer side of the first frame 1, and a connecting device is arranged on the outer side of the first frame 1, wherein the connecting device comprises a connecting sleeve 2, a connecting rod 3, a control sleeve 4, a plug-in frame 5, a plug-in slot 6 and a control slot 7, the connecting sleeve 2 is detachably sleeved on the outer side of the connecting rod 3, the control sleeve 4 is rotatably sleeved on the outer side of the connecting sleeve 2, the plug-in frame 5 is movably installed in the control slot 7, one end of the plug-in frame 5 penetrates through the side wall of the connecting sleeve 2 and is inserted into the plug-in slot 6, the plug-in slot 6 is arranged on the outer side of the connecting rod 3, the control slot 7 is arranged on the inner side of the control sleeve 4, a self-locking mechanism is arranged on the outer side of the connecting sleeve 2, the self-locking mechanism comprises an adapting sleeve 8, an adapting slot 9, an adapting hole 10, a self-locking sleeve 11, a plurality of self-locking slots 12, a limiting plate 13, a limiting rod 14, a return spring 15 and a self-locking rod 16, the adapting sleeve 8 is rotatably sleeved on the outer side of the connecting sleeve 2, the adapting slot 9 is arranged on the adapting sleeve 8, the adapting hole 10 is arranged at one end of the adapting slot 9, the self-locking sleeve 11 is slidably sleeved on the outer side of the connecting sleeve 2, the plurality of self-locking slots 12 are arranged on the outer side of the connecting sleeve 2, the limiting plate 13 is arranged on the limiting rod 14, the limiting rod 14 is connected to one side of the self-locking sleeve 11, one end of the self-locking rod 16 is connected to the outer wall of the control sleeve 4 through the return spring 15, and the other end of the self-locking rod 16 is inserted into the self-locking slot 12.

[0033] A spring 17 is connected to the inner side of the plug-in frame 5, and the other end of the spring 17 is connected to the outer wall of the connecting sleeve 2.

[0034] A guide slot 18 is arranged on the outer side of the connecting rod 3, a guide rail 19 is fixedly arranged in the connecting sleeve 2, and the guide slot 18 is matched with the guide rail 19.

[0035] A push spring 20 is movably sleeved on the outer side of the limiting rod 14, and one end of the push spring 20 is in contact with the adapting sleeve 8.

[0036] In the embodiment, when the corresponding illustration frame needs to be removed, first rotate the adapter sleeve 8, which drives the adapter groove 9 and the adapter hole 10 to rotate, when the adapter hole 10 moves to the position concentric with the limiting plate 13, push the self-locking sleeve 11, which drives the limiting rod 14 and the limiting plate 13 to pass through the adapter hole 10, the diameter of the adapter hole 10 is slightly larger than the diameter of the limiting plate 13, the diameter of the limiting plate 13 is larger than the diameter of the limiting rod 14, at the same time, the self-locking sleeve 11 cooperates with the push spring 20 outside the limiting rod 14 to extrude, when the push spring 20 is extruded to the limit, the corresponding limiting plate 13 just passes through the adapter hole 10 and reaches the other side of the adapter sleeve 8, then reverse rotate the adapter sleeve 8, so that the adapter sleeve 8 drives the adapter groove 9 and the adapter hole 10 to rotate, then the limiting rod 14 slides into the adapter groove 9, and the self-locking sleeve 11 is limited by the cooperation of the limiting rod 14 and the corresponding limiting plate 13, then the outer end of the self-locking rod 16 loses the limitation of the self-locking sleeve 11, then rotate the control sleeve 4, then the control sleeve 4 drives the control groove 7 inside to rotate, due to the variable diameter structure inside the control groove 7, when the control groove 7 rotates, the spring 17 slowly pushes the plug-in frame 5 to reset, so that one side of the plug-in frame 5 always fits the inner wall of the control groove 7, at the same time, the other end of the plug-in frame 5 gradually pulls out of the plug-in slot 6, then pull the connecting sleeve 2 and the connecting rod 3 to both sides respectively, which can realize the quick disassembly between the first movable plate and the second movable plate 23, then disassemble the first movable plate 22 and the second movable plate 23 on the other side according to the above steps, then remove the corresponding illustration frame, when the two illustration frames need to be connected together, first align the first movable plate 22 and the second movable plate 23 respectively installed on the illustration frame, and make the shaft sleeve 24 on one side of the first movable plate 22 and the second movable plate 23 concentric, then pass the connecting rod 3 through all the shaft sleeves 24 from one side of the shaft sleeve 24, then fit the connecting sleeve 2 to the outside of the connecting rod 3 from the other side of the shaft sleeve 24, and make the position of the guide rail 19 inside the connecting sleeve 2 correspond to the position of the guide groove 18 outside the connecting rod 3, when the connecting sleeve 2 and the connecting rod 3 press the shaft sleeve 24 tightly, reverse rotate the control sleeve 4, so that the control sleeve 4 drives the control groove 7 to reset, in this process, the inner wall of the control groove 7 presses the outside of the plug-in frame 5, so that the plug-in frame 5 extrudes the spring 17 inside, and one end of the plug-in frame 5 is inserted into the plug-in slot 6, when the plug-in frame 5 is completely inserted into the plug-in slot 6, the reset spring 15 drives the self-locking rod 16 to reset, so that one end of the self-locking rod 16 is inserted into the original self-locking slot 12, then rotate the adapter sleeve 8 again, so that the adapter sleeve 8 drives the adapter groove 9 and the adapter hole 10 to move, when the adapter hole 10 moves to the position concentric with the limiting rod 14, the push spring 20 pushes the self-locking sleeve 11 to reset, then the self-locking sleeve 11 drives the limiting rod 14 and the limiting plate 13 to slide reset, when the push spring 20 is completely reset, rotate the adapter sleeve 8 again,The adapter sleeve 8 drives the adapter groove 9 and the adapter hole 10 to move to a position not corresponding to the limiting rod 14 and the limiting plate 13, so that the limiting rod 14 limits the self-locking sleeve 11, preventing the self-locking sleeve 11 from sliding, and then the inner wall of the self-locking sleeve 11 limits the outer end of the self-locking rod 16, preventing the self-locking rod 16 from moving, and then the self-locking rod 16 and the self-locking groove 12 cooperate to limit the control sleeve 4, preventing the control sleeve 4 from rotating, thereby ensuring the stability of the connecting structure.

[0037] Please refer to Figures 1-3 As an embodiment of the folding device: the folding device comprises a second frame 21, a first movable plate 22, a second movable plate 23 and a shaft sleeve 24, the second frame 21 is movably arranged on one side of the first frame 1, the first movable plate 22 is detachably installed on the back side of the first frame 1, the second movable plate 23 is detachably installed on the back side of the second frame 21, and the shaft sleeve 24 is connected to one side of the first movable plate 22 and the second movable plate 23 respectively.

[0038] The first movable plate 22 is provided with a clearance groove 25 on the inner side, and the clearance groove 25 is adapted to the second movable plate 23.

[0039] The second frame 21 is movably provided with a third frame 26 on one side, and the first frame 1 is movably provided with a fourth frame 27 on one side.

[0040] The first frame 1, the second frame 21, the third frame 26 and the fourth frame 27 are all detachably provided with a transparent plate 28 on one side through bolts.

[0041] More specifically, when the device needs to be folded, first rotate the fourth frame 27 and the third frame 26 upwards respectively, then the third frame 26 and the fourth frame 27 will drive the second movable plate 23 to rotate around the shaft sleeve 24 respectively, and at the same time the third frame 26 and the fourth frame 27 will drive the transparent plate 28 installed on one side to rotate, when the transparent plate 28 installed on one side of the third frame 26 is attached to the transparent plate 28 installed on one side of the second frame 21, the corresponding second movable plate 23 will enter the accommodation slot 25 opened on the inside of the corresponding first movable plate 22, when the transparent plate 28 installed on one side of the fourth frame 27 is attached to the transparent plate 28 installed on one side of the first frame 1, the second movable plate 23 connected to one side of the fourth frame 27 will enter the accommodation slot 25 opened on the inside of the first movable plate 22 connected to one side of the first frame 1, then rotate the second frame 21 backwards, so that the second frame 21 drives the second movable plate 23 connected to the back to rotate along the shaft sleeve 24, when the back of the second frame 21 and the back of the first frame 1 are attached, the second movable plate 23 connected to the back of the second frame 21 will enter the accommodation slot 25 opened on the inside of the first movable plate 22 connected to the back of the first frame 1, so as to realize the folding of the first frame 1, the second frame 21, the third frame 26 and the fourth frame 27, and facilitate storage and transportation, when the device needs to be unfolded, reverse the above steps, when the picture needs to be installed into the picture frame, first remove the bolts outside the transparent plate 28, then remove the transparent plate 28, then put the picture into the inside of the transparent plate 28, and make the front of the picture face the outside of the transparent plate 28, then reinstall the transparent plate 28 on one side of the corresponding picture frame through the external bolts.

[0042] In summary, the overall device is in use or operation: when the corresponding illustration frame needs to be removed, first rotate the adapter sleeve 8, the adapter sleeve 8 will drive the adapter slot 9 and the adapter hole 10 to rotate, when the adapter hole 10 moves to the position concentric with the limiting plate 13, push the self-locking sleeve 11, the self-locking sleeve 11 will drive the limiting rod 14 and the limiting plate 13 to pass through the adapter hole 10, the diameter of the adapter hole 10 is slightly larger than the diameter of the limiting plate 13, the diameter of the limiting plate 13 is larger than the diameter of the limiting rod 14, at the same time, the self-locking sleeve 11 will cooperate with the push spring 20 outside the limiting rod 14 to extrude, when the push spring 20 is extruded to the limit, the corresponding limiting plate 13 just passes through the adapter hole 10 and reaches the other side of the adapter sleeve 8, then reverse the adapter sleeve 8, so that the adapter sleeve 8 drives the adapter slot 9 and the adapter hole 10 to rotate, then the limiting rod 14 will slide into the adapter slot 9, and the self-locking sleeve 11 will be limited by the cooperation of the limiting rod 14 and the corresponding limiting plate 13, then the outer end of the self-locking rod 16 loses the limitation of the self-locking sleeve 11, then rotate the control sleeve 4, then the control sleeve 4 will drive the control slot 7 inside to rotate, due to the variable diameter structure inside the control slot 7, when the control slot 7 rotates, the spring 17 will slowly push the plug-in frame 5 to reset, so that one side of the plug-in frame 5 always fits the inner wall of the control slot 7, at the same time, the other end of the plug-in frame 5 will gradually pull out of the plug-in slot 6, then pull the connecting sleeve 2 and the connecting rod 3 to both sides respectively, that is, the quick disassembly between the first movable plate and the second movable plate 23 can be realized, then the first movable plate 22 and the second movable plate 23 on the other side are disassembled according to the above steps, then the corresponding illustration frame can be removed, when two illustration frames need to be connected together, first align the first movable plate 22 and the second movable plate 23 respectively installed on the illustration frame, and make the shaft sleeve 24 connected on one side of the first movable plate 22 and the second movable plate 23 concentric, then pass the connecting rod 3 from one side of the shaft sleeve 24 through all the shaft sleeves 24, then fit the connecting sleeve 2 from the other side of the shaft sleeve 24 to the outside of the connecting rod 3, and make the position of the guide rail 19 inside the connecting sleeve 2 correspond to the position of the guide slot 18 outside the connecting rod 3, when the connecting sleeve 2 and the connecting rod 3 press the shaft sleeve 24 tightly, reverse the control sleeve 4, so that the control sleeve 4 drives the control slot 7 to reset, in this process, the inner wall of the control slot 7 exerts pressure on the outside of the plug-in frame 5, so that the plug-in frame 5 extrudes the spring 17 inside, and one end of the plug-in frame 5 is inserted into the plug-in slot 6, when the plug-in frame 5 is completely inserted into the plug-in slot 6, the reset spring 15 drives the self-locking rod 16 to reset, so that one end of the self-locking rod 16 is inserted into the original self-locking slot 12, then rotate the adapter sleeve 8 again, so that the adapter sleeve 8 drives the adapter slot 9 and the adapter hole 10 to move, when the adapter hole 10 moves to the position concentric with the limiting rod 14, the push spring 20 pushes the self-locking sleeve 11 to reset, then the self-locking sleeve 11 will drive the limiting rod 14 and the limiting plate 13 to slide reset, when the push spring 20 is completely reset, rotate the adapter sleeve 8 again,Make the adaptive sleeve 8 drive the adaptive groove 9 and the adaptive hole 10 move to the position not corresponding with the limiting rod 14 and the limiting plate 13, so that the limiting rod 14 limits the self-locking sleeve 11, prevents the self-locking sleeve 11 from sliding, then the inner wall of the self-locking sleeve 11 limits the outer end of the self-locking rod 16, prevents the self-locking rod 16 from moving, then the self-locking rod 16 and the self-locking groove 12 cooperate to limit the control sleeve 4, prevents the control sleeve 4 from rotating, thereby guaranteeing the stability of the connecting structure.

[0043] When it is needed to fold the device, first, rotate the fourth frame 27 and the third frame 26 upwards respectively, then the third frame 26 and the fourth frame 27 will drive the second movable plate 23 to rotate with the shaft sleeve 24 as the center respectively, at the same time, the third frame 26 and the fourth frame 27 will drive the transparent plate 28 installed on one side to rotate, when the transparent plate 28 installed on one side of the third frame 26 is attached with the transparent plate 28 installed on one side of the second frame 21, the corresponding second movable plate 23 will enter into the accommodation slot 25 opened in the inner side of the corresponding first movable plate 22, when the transparent plate 28 installed on one side of the fourth frame 27 is attached with the transparent plate 28 installed on one side of the first frame 1, the second movable plate 23 connected with the fourth frame 27 will enter into the accommodation slot 25 opened in the inner side of the first movable plate 22 connected with the first frame 1, then rotate the second frame 21 to the rear, so that the second frame 21 drives the second movable plate 23 connected with the back side to rotate along the shaft sleeve 24, when the back side of the second frame 21 is attached with the back side of the first frame 1, the second movable plate 23 connected with the back side of the second frame 21 will enter into the accommodation slot 25 opened in the inner side of the first movable plate 22 connected with the back side of the first frame 1, thereby realizing the folding of the first frame 1, the second frame 21, the third frame 26 and the fourth frame 27, which is convenient for storage and transportation, when it is needed to unfold the device, reverse operation according to the above steps can be performed, when it is needed to install the picture into the picture frame, first, remove the bolt externally provided on one side of the transparent plate 28, then remove the transparent plate 28, then put the picture into the inner side of the transparent plate 28, and make the front side of the picture face the outer side of the transparent plate 28, then reinstall the transparent plate 28 to the corresponding picture frame side through the externally provided bolt, when it is needed to use the device, the device can be used for display through the bolt or magnetic display stand.

[0044] In all the schemes mentioned above, the connection between two components can be selected according to actual conditions, such as welding, bolt and nut connection, bolt or screw connection or other known connection methods, which will not be described one by one, in the above, whenever there is a fixed connection, welding is preferred, although the embodiments of the utility model have been shown and described, those skilled in the art can understand that the embodiments can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An art print frame comprising a first frame (1) characterised in that: The first frame (1) is connected with a folding device outside, and a connecting device is arranged outside the first frame (1), the connecting device comprises a connecting sleeve (2), a connecting rod (3), a control sleeve (4), a plug-in frame (5), a plug-in slot (6) and a control slot (7), the connecting sleeve (2) is sleeved outside the connecting rod (3), the control sleeve (4) is sleeved outside the connecting sleeve (2), the plug-in frame (5) is installed in the control slot (7), the plug-in slot (6) is arranged outside the connecting rod (3), the control slot (7) is arranged inside the control sleeve (4), a self-locking mechanism is arranged outside the connecting sleeve (2), the self-locking mechanism comprises an adapting sleeve (8), an adapting slot (9), an adapting hole (10), a self-locking sleeve (11), a self-locking slot (12), a limiting plate (13), a limiting rod (14), a reset spring (15) and a self-locking rod (16), the adapting sleeve (8) is sleeved outside the connecting sleeve (2), the adapting slot (9) is arranged on the adapting sleeve (8), the adapting hole (10) is arranged at one end of the adapting slot (9), the self-locking sleeve (11) is sleeved outside the connecting sleeve (2), a plurality of self-locking slots (12) are arranged outside the connecting sleeve (2), the limiting plate (13) is arranged on the limiting rod (14), the limiting rod (14) is connected to one side of the self-locking sleeve (11), one end of the self-locking rod (16) is connected to the outer wall of the control sleeve (4) through the reset spring (15).

2. An art print frame according to claim 1, characterised in that: A spring (17) is connected to the inner side of the plug-in frame (5), and the other end of the spring (17) is connected to the outer wall of the connecting sleeve (2).

3. An art print frame according to claim 2, wherein: A guide groove (18) is arranged outside the connecting rod (3), a guide rail (19) is fixedly arranged in the connecting sleeve (2), and the guide groove (18) is matched with the guide rail (19).

4. An art print frame according to claim 1, wherein: A push spring (20) is movably sleeved outside the limiting rod (14), and one end of the push spring (20) is in contact with the adapting sleeve (8).

5. An art print frame according to any one of claims 1 to 4 wherein: The folding device comprises a second frame (21), a first movable plate (22), a second movable plate (23) and a shaft sleeve (24), the second frame (21) is movably arranged on one side of the first frame (1), the first movable plate (22) is detachably installed on the back side of the first frame (1), the second movable plate (23) is detachably installed on the back side of the second frame (21), and the shaft sleeve (24) is connected to one side of the first movable plate (22) and the second movable plate (23) respectively.

6. An art print frame according to claim 5, wherein: A letting slot (25) is arranged on the inner side of the first movable plate (22), and the letting slot (25) is matched with the second movable plate (23).

7. An art print frame according to claim 6, wherein: A third frame (26) is movably arranged on one side of the second frame (21), and a fourth frame (27) is movably arranged on one side of the first frame (1).

8. An art print frame according to claim 7, characterised in that: Transparent plates (28) are detachably arranged on one side of the first frame (1), the second frame (21), the third frame (26) and the fourth frame (27) through bolts.