A picture frame lifting fixture and display device

Abstract

The present invention provides a picture frame lifting fixture and a display device, relating to the technical field of display equipment. Among them, this lifting fixture is used to lift a picture frame assembly, and the picture frame assembly includes a picture frame body and a suspension member configured on the picture frame body. The lifting fixture comprises: a connecting mechanism, a lifting member, a telescopic mechanism and a lifting head. The telescopic mechanism can drive the lifting member and drive the rotating mechanism, the lifting head and the picture frame assembly to move up and down together. The rotating mechanism can drive the lifting head and the picture frame assembly to rotate together. Additionally, the display device comprises a picture frame bin provided with a picture cavity and a display window, a moving device and a lifting fixture. The moving device can drive the lifting fixture to lift the picture frame assembly located in the picture cavity and suspend the picture frame assembly on the suspension device; the moving device can drive the lifting fixture to lift the picture frame assembly located on the suspension device and place the picture frame assembly in the picture cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of display devices, and more particularly, to a picture hanging fixture and a display device. Background Art

[0002] With the rapid development of automatic control technology, automatic control has been widely applied in all walks of life. Among them, intelligent warehousing systems are also gradually being popularized, and there is also a high market demand for intelligent exhibition and storage of pictures.

[0003] In the prior art, the display of pictures generally relies on manual handling, or the handling and display of pictures are assisted by equipment. Not only is the display efficiency low, but precious pictures are also easily damaged in the chaos. In view of this, the inventor has put forward this application after studying the existing technologies. Summary of the Invention

[0004] The present invention provides a picture hanging fixture and a display device, aiming to improve the problems in the above background art.

[0005] To solve the above technical problems, the present invention provides a picture hanging fixture for hanging a picture assembly. The picture assembly includes a picture body and a suspension member disposed on the picture body. The suspension member is provided with a first suspension portion and a second suspension portion. The first suspension portion is located above the second suspension portion. The first suspension portion is provided with at least two first suspension holes arranged left and right, and the second suspension portion is provided with a second suspension hole. The hanging fixture includes:

[0006] A connecting mechanism;

[0007] A lifting member configured to be movable up and down on the connecting mechanism;

[0008] A telescopic mechanism configured on the connecting mechanism, and its output end is connected to the lifting member;

[0009] A rotating mechanism configured on the lifting member;

[0010] A hanging head configured at the output end of the rotating mechanism; it is provided with a first hanging portion and a second hanging portion. The first hanging portion is located above the second hanging portion. The first hanging portion is provided with first pins corresponding to and adapted to the first suspension holes one by one, and the second hanging portion is provided with second pins corresponding to and adapted to the second suspension hole;

[0011] The lifting head can be inserted into the hanging part so that the first lifting part extends between the first hanging part and the second hanging part, so that the second lifting part extends under the second hanging part, and the first pin and the second pin are respectively inserted into the first hanging hole and the second hanging hole; the telescopic mechanism can drive the lifting part and drive the rotating mechanism, the lifting head and the frame assembly to move up and down together; the rotating mechanism can drive the lifting head and the frame assembly to rotate together.

[0012] As a further optimization, both the first pin and the second pin are tapered pins.

[0013] As a further optimization, the lifting fixture includes a pair of lifting heads, which are respectively arranged on both sides of the output end of the rotating mechanism; the second hanging portion is provided with two second hanging holes, and the second pins of a pair of lifting heads correspond to the two second hanging holes respectively.

[0014] As a further optimization, the rotating mechanism includes a rotating motor, a reducer transmission-connected to the rotating motor, and a rotating seat connected to an output end of the reducer, and the lifting head is arranged on the rotating seat.

[0015] As a further optimization, the connecting mechanism includes a connecting plate, a slide rail arranged on the connecting plate, and a slider arranged on the lifting member and adapted to the slide rail.

[0016] The present application further provides a picture display device, comprising:

[0017] The picture frame compartment has a picture chamber for accommodating the picture frame assembly and is also provided with a display window;

[0018] A moving device, which is movably disposed in the frame bin;

[0019] A hanging device, corresponding to the display window and arranged in the picture frame bin;

[0020] A lifting fixture, which is arranged on the moving device;

[0021] Among them, the moving device can drive the lifting clamp to lift the picture frame assembly located in the painting cavity, and hang the picture frame assembly on the hanging device; the moving device can drive the lifting clamp to lift the picture frame assembly located on the hanging device, and place the picture frame assembly in the painting cavity.

[0022] As a further optimization, the second suspension portion is provided with a third suspension hole; the suspension device has a suspension head, and the suspension head is provided with a third pin adapted to the third suspension hole.

[0023] As a further optimization, the lifting fixture includes a pair of the lifting heads, and the steps for the picture frame display device to replace the picture frame assembly to be displayed are as follows:

[0024] Drive the lifting fixture lifting a first picture frame assembly A through the moving device to move to the hanging device, and lift a second picture frame assembly B located on the hanging device;

[0025] Rotate a pair of the lifting heads through the rotating mechanism to exchange the positions of the first picture frame assembly A and the second picture frame assembly B;

[0026] Hang the first picture frame assembly A on the hanging device.

[0027] By adopting the above technical solutions, the present invention can achieve the following technical effects:

[0028] The lifting fixture in this case can conveniently and reliably lift the picture frame assembly. Specifically, the lifting fixture in this case is connected to an external moving device through a connecting mechanism, and the specific working principle of the lifting fixture in this case is as follows:

[0029] The moving device can drive the lifting fixture to move, and let the first lifting part extend between the first hanging part and the second hanging part, and at the same time let the second lifting part extend below the second hanging part. Then, through the telescopic mechanism, drive the lifting member to move upward relative to the connecting mechanism, and at the same time drive the rotating mechanism, the lifting head and the picture frame assembly to move upward together, so that the first pin and the second pin are respectively inserted into the first hanging hole and the second hanging hole.

[0030] Through the above technical solutions, the lifting fixture can lift the picture frame assembly conveniently and quickly. At the same time, in this case, the hanging member is provided with a two-layer structure of a first hanging part and a second hanging part, and the lifting head is also provided with a two-layer structure of a first lifting part and a second lifting part; the cooperation of the two-layer structure can allow the lifting fixture to apply a greater torque to the picture frame assembly and make the picture frame assembly more stable. In addition, in this case, the first hanging part is provided with at least two first hanging holes, and correspondingly the first lifting part is also provided with at least two first pins that are in one-to-one correspondence with the first hanging holes, and the first hanging holes are arranged left and right, which can further improve the stability of the lifting head in lifting the picture frame assembly.

[0031] In addition, the picture frame display device provided in this case can not only lift the picture frame assembly conveniently, quickly and stably, but also greatly improve the efficiency of replacing the picture frame to be displayed. Specifically, the steps for the picture frame display device to replace the picture frame assembly to be displayed are as follows:

[0032] First, drive the lifting fixture lifting a first picture frame assembly A through the moving device to move to the hanging device, and lift a second picture frame assembly B located on the hanging device;

[0033] Second, rotate a pair of lifting heads through a rotating mechanism to exchange the positions of the first picture frame component A and the second picture frame component B;

[0034] Third, suspend the first picture frame component A on the suspension device;

[0035] Fourth, finally place the second picture frame component B in the picture chamber.

[0036] Through the above solution, the picture frame display device of this case can not only automatically display the picture frame components, but also combine the picture frame used for suspension display and the replacement of the picture frame components used for display, greatly improving the efficiency of replacing the picture frame components used for display. Brief Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0038] Figure 1 is a schematic diagram of the cooperation between the lifting fixture and the picture frame component in an embodiment of the present invention;

[0039] Figure 2 is an exploded view of the lifting fixture and the picture frame component in an embodiment of the present invention;

[0040] Figure 3 is a schematic diagram of the first axonometric structure cooperation of the lifting fixture in an embodiment of the present invention;

[0041] Figure 4 is a schematic diagram of the second axonometric structure cooperation of the lifting fixture in an embodiment of the present invention;

[0042] Figure 5 is an exploded view of the lifting fixture in an embodiment of the present invention;

[0043] Figure 6 is a schematic diagram of the first structure of the picture frame display device in an embodiment of the present invention;

[0044] Figure 7 is a schematic diagram of the second structure of the picture frame display device (hiding the outer wall) in an embodiment of the present invention;

[0045] Figure 8 is a schematic diagram of the third structure of the picture frame display device (hiding the outer wall) in an embodiment of the present invention;

[0046] Figure 9This is a schematic diagram showing the cooperation between a suspension device and a picture frame assembly according to an embodiment of the present invention;

[0047] Reference numerals in the figure: 1 - lifting fixture; 2 - picture frame assembly; 3 - suspension member; 4 - picture frame body; 5 - lifting head; 6 - first lifting portion; 7 - second lifting portion; 8 - first suspension portion; 9 - second suspension portion; 10 - first pin; 11 - second pin; 12 - first suspension hole; 13 - second suspension hole; 14 - connecting mechanism; 15 - lifting member; 16 - telescopic mechanism; 17 - rotating mechanism; 18 - rotating motor; 19 - reducer; 20 - rotating base; 21 - connecting plate; 22 - slide rail; 23 - slider; 24 - picture frame bin; 25 - display window; 26 - picture cavity; 27 - moving device; 28 - suspension device; 29 - suspension head; 30 - third pin; 31 - third suspension hole; 2A - first picture frame assembly; 2B - second picture frame assembly. Detailed implementation manners

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0051] In the present invention, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0053] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0054] As Figure 1 , Figure 2 and Figure 3 shown, in this embodiment, a picture frame lifting fixture is used to lift a picture frame assembly 2. The picture frame assembly 2 includes a picture frame body 4 and a suspension member 3 disposed on the picture frame body 4. The suspension member 3 is provided with a first suspension portion 8 and a second suspension portion 9. The first suspension portion 8 is located above the second suspension portion 9. The first suspension portion 8 is provided with at least two first suspension holes 12 arranged left and right, and the second suspension portion 9 is provided with a second suspension hole 13; the lifting fixture 1 includes:

[0055] A connection mechanism 14;

[0056] A lifting member 15, which is configured on the connection mechanism 14 to be movable up and down;

[0057] A telescopic mechanism 16, which is configured on the connection mechanism 14 and its output end is connected to the lifting member 15;

[0058] A rotating mechanism 17, which is arranged on the lifting member 15;

[0059] A lifting head 5, which is arranged at the output end of the rotating mechanism 17; it is provided with a first lifting part 6 and a second lifting part 7, the first lifting part 6 is located above the second lifting part 7, the first lifting part 6 is provided with a first pin 10 that corresponds to and is adapted to the first suspension hole 12 one by one, and the second lifting part 7 is provided with a second pin 11 that corresponds to and is adapted to the second suspension hole 13;

[0060] The lifting head 5 can be inserted into the suspension member 3, so that the first lifting part 6 extends into the space between the first suspension part 8 and the second suspension part 9, so that the second lifting part 7 extends below the second suspension part 9, and the first pin 10 and the second pin 11 are respectively inserted into the first suspension hole 12 and the second suspension hole 13; the telescopic mechanism 16 can drive the lifting member 15, and drive the rotating mechanism 17, the lifting head 5 and the picture frame assembly 2 to move up and down together; the rotating mechanism 17 can drive the lifting head 5 and the picture frame assembly 2 to rotate together.

[0061] Specifically, the lifting fixture 1 of this embodiment is connected to an external moving device 27 through a connecting mechanism 14. The specific working principle of the lifting fixture 1 in this case is as follows:

[0062] The moving device 27 can drive the lifting fixture 1 to move, and make the first lifting part 6 extend into the space between the first suspension part 8 and the second suspension part 9, and at the same time make the second lifting part 7 extend below the second suspension part 9. Then, through the telescopic mechanism 16, the lifting member 15 is driven to move upward relative to the connecting mechanism 14, and at the same time, the rotating mechanism 17, the lifting head 5 and the picture frame assembly 2 are driven to move upward together, so that the first pin 10 and the second pin 11 are respectively inserted into the first suspension hole 12 and the second suspension hole 13.

[0063] As Figure 3 、 Figure 4 and Figure 5 shown, in this embodiment, both the first pin 10 and the second pin 11 are taper pins. The first pin 10 and the second pin 11 with a taper pin structure greatly facilitate the cooperation between the two and the first suspension hole 12 and the second suspension hole 13.

[0064] In addition, in this embodiment, the lifting fixture 1 includes a pair of lifting heads 5, and the pair of lifting heads 5 are respectively arranged on both sides of the output end of the rotating mechanism 17; the second suspension part 9 is provided with two second suspension holes 13, and the second pins 11 of the pair of lifting heads 5 respectively correspond to the two second suspension holes 13. That is: in this embodiment, the lifting fixture 1 can lift two picture frame assemblies 2 at the same time, and the two picture frame assemblies 2 can rotate relative to each other under the action of the rotating mechanism 17.

[0065] As Figure 3 、 Figure 4 andFigure 5 As shown, in this embodiment, the rotation mechanism includes a rotation motor 18, a speed reducer 19 drivingly connected to the rotation motor 18, and a rotating seat 20 connected to the output end of the speed reducer 19. The lifting head 5 is disposed on the rotating seat 20. The rotation motor 18 can drive the rotating seat 20 to rotate through the speed reducer 19 so as to drive the picture frame assembly 2 suspended on the rotating seat 20.

[0066] As Figure 5 As shown, in this embodiment, the connecting mechanism 14 includes a connecting plate 21, a slide rail 22 disposed on the connecting plate 21, and a slider 23 disposed on the lifting member 15 and adapted to the slide rail 22. Since one end of the telescopic mechanism 16 is fixed to the connecting plate 21, the telescopic mechanism 16 can drive the lifting member 15 and the slider 23 to move up and down relative to the slide rail 22 together. Among them, the telescopic mechanism 16 can be a cylinder, a hydraulic cylinder, a rack and pinion, etc. in the prior art, which will not be elaborated here.

[0067] It can be known from the above solution of this embodiment that, in this case, since the suspension member 3 is provided with two layers of structures, namely a first suspension portion 8 and a second suspension portion 9, and the lifting head 5 is also provided with two layers of structures, namely a first lifting portion 6 and a second lifting portion 7; the cooperation of the two layers of structures can allow the lifting fixture 1 to act on a greater torque on the picture frame assembly 2, and can make the picture frame assembly 2 more stable. In addition, in this case, the first suspension portion 8 is provided with at least two first suspension holes 12, and correspondingly, the first lifting portion 6 is also provided with at least two first pins 10 that are in one-to-one correspondence with the first suspension holes 12, and the first suspension holes 12 are arranged left and right, which can further improve the stability of the lifting head 5 in lifting the picture frame assembly 2.

[0068] As Figures 6 to 9 As shown, the present application further provides a picture frame display device, which includes:

[0069] A picture frame bin 24, which has a picture cavity 26 for accommodating the picture frame assembly 2, and is also provided with a display window 25;

[0070] A moving device 27, which is movably disposed in the picture frame bin 24;

[0071] A suspension device 28, which corresponds to the display window 25 and is disposed in the picture frame bin 24;

[0072] A lifting fixture 1, which is disposed on the moving device 27;

[0073] Among them, the lifting fixture 1 is the lifting fixture 1 described in the above embodiment. In this embodiment, the moving device 27 can drive the lifting fixture 1 to lift the picture frame assembly 2 located in the picture cavity 26 and suspend the picture frame assembly 2 on the suspension device 28; the moving device 27 can drive the lifting fixture 1 to lift the picture frame assembly 2 located on the suspension device 28 and place the picture frame assembly 2 in the picture cavity 26.

[0074] As shown by Figure 7 and Figure 8 In this embodiment, the picture frame assembly 2 to be displayed is placed in the picture cavity 26 in advance, and the display window 25 is an opening provided on the front side wall of the picture frame bin 24. The hanging device 28 is a moving device supported above the picture frame bin 24. Specifically, the moving device 27 can move up, down, left, and right along the picture frame bin 24 (X-axis, Y-axis), and a device that can achieve X-axis and Y-axis movement belongs to existing conventional equipment and will not be elaborated here.

[0075] As shown by Figure 8 and Figure 9 In this embodiment, the second hanging part 9 is provided with 4 third hanging holes 31; the hanging device 28 has a hanging head 29, and the hanging head 29 is provided with 4 third pins 30 adapted to the third hanging holes 31. The moving device 27 can drive the lifting fixture 1 to lift the picture frame assembly 2 from the picture cavity 26 and rotate the picture frame assembly 2 onto the hanging device 28. The method for the lifting fixture 1 to lift the picture frame assembly 2 from the picture cavity 26 is the same as the lifting method of the lifting fixture 1 in the above-mentioned embodiment and will not be elaborated here.

[0076] The method for hanging the picture frame assembly 2 on the hanging device 28 is as follows:

[0077] As shown by Figure 9 The moving device 27 drives the lifting fixture 1 and the picture frame assembly 2 to move together, inserts the hanging head 29 below the second hanging part 9, and then drives the hanging head 29 to move upward so that the 4 third pins 30 are respectively inserted into the 4 third hanging holes 31.

[0078] As shown by Figure 8 and Figure 9 In this embodiment, the steps for the picture display device to replace the picture frame assembly 2 for display are as follows:

[0079] First, drive the lifting fixture 1 lifting a first picture frame assembly 2A through the moving device 27 to move to the hanging device 28 and lift a second picture frame assembly 2B located on the hanging device 28;

[0080] Second, rotate a pair of lifting heads 5 through the rotating mechanism 17 to exchange the positions of the first picture frame assembly 2A and the second picture frame assembly 2B;

[0081] Third, then hang the first picture frame assembly 2A on the hanging device 28;

[0082] Fourth, finally place the second picture frame assembly 2B in the picture cavity 26.

[0083] As can be known from the above steps, the picture frame display device in this case can not only automatically display the picture frame component 2, but also combine the hanging of the picture frame for display and the replacement of the picture frame component 2 for display, greatly improving the efficiency of replacing the picture frame component 2 for display.

[0084] Through the above solution of this embodiment, the picture frame display device in this case can not only conveniently, quickly and stably lift the picture frame component 2, but also greatly improve the efficiency of replacing the picture frame for display.

[0085] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A picture frame lifting fixture for lifting a picture frame assembly (2), the picture frame assembly (2) including a picture frame body (4) and a suspension member (3) disposed on the picture frame body (4), characterized in that, The hanging member (3) is provided with a first hanging part (8) and a second hanging part (9), the first hanging part (8) is located above the second hanging part (9), the first hanging part (8) is provided with at least two first hanging holes (12) arranged on the left and right, and the second hanging part (9) is provided with two second hanging holes (13); the lifting fixture (1) comprises: a connecting mechanism (14); a lifting member (15) which is movably arranged on the connecting mechanism (14) up and down; a telescopic mechanism (16) which is arranged on the connecting mechanism (14) and whose output end is connected to the lifting member (15); a rotating mechanism (17) which is arranged on the lifting member (15); a pair of lifting heads (5), the pair of lifting heads (5) are respectively arranged on both sides of the output end of the rotating mechanism (17); the lifting head (5) is provided with a first lifting part (6) and a second lifting part (7), the first lifting part (6) is located above the second lifting part (7) The first lifting part (6) is provided with a first pin (10) which corresponds to and matches the first hanging hole (12) one by one, and the second lifting part (7) is provided with a second pin (11) which corresponds to and matches the second hanging hole (13); the lifting head (5) can be inserted into the hanging member (3) so that the first lifting part (6) extends between the first hanging part (8) and the second hanging part (9), so that the second lifting part (7) extends below the second hanging part (9), and the first pin (10) and the second pin (11) are respectively inserted into the first hanging hole (12) and the second hanging hole (13); the telescopic mechanism (16) can drive the lifting member (15), and drive the rotating mechanism (17), the lifting head (5) and the frame assembly (2) to move up and down together; the rotating mechanism (17) can drive the lifting head (5) and the frame assembly (2) to rotate together.

2. The picture frame lifting fixture according to claim 1, characterized in that , the first pin (10) and the second pin (11) are both tapered pins.

3. The picture frame lifting fixture according to claim 1, characterized in that The rotating mechanism (17) includes a rotating motor (18), a reducer (19) connected to the rotating motor (18), and a rotating seat (20) connected to the output end of the reducer (19), and the lifting head (5) is arranged on the rotating seat (20).

4. A picture frame lifting fixture according to claim 1, characterized in that The connecting mechanism (14) includes a connecting plate (21), a slide rail (22) arranged on the connecting plate (21), and a slider (23) arranged on the lifting member (15) and adapted to the slide rail (22).

5. A picture frame display device, characterized in that, Comprising: a picture frame bin (24) with a picture cavity (26) therein for accommodating a picture frame assembly (2), and further provided with a display window (25); a moving device (27) movably disposed in the picture frame bin (24); a hanging device (28) corresponding to the display window (25) and disposed in the picture frame bin (24); a lifting fixture (1) disposed on the moving device (27); wherein, the lifting fixture (1) is the lifting fixture (1) according to any one of claims 1 to 4; the moving device (27) is capable of driving the lifting fixture (1) to lift the picture frame assembly (2) located in the picture cavity (26) and hang the picture frame assembly (2) on the hanging device (28); the moving device (27) is capable of driving the lifting fixture (1) to lift the picture frame assembly (2) located on the hanging device (28) and place the picture frame assembly (2) in the picture cavity (26).

6. The picture frame display device according to claim 5, wherein , the second hanging portion (9) is provided with a third hanging hole (31); the hanging device (28) has a hanging head (29), and the hanging head (29) is provided with a third pin (30) adapted to the third hanging hole (31).

7. A picture frame display device according to claim 5, wherein , the lifting fixture (1) includes a pair of the lifting heads (5), and the steps for the picture display device to replace the picture frame assembly (2) for display are as follows: driving the lifting fixture (1) lifting a first picture frame assembly (2A) by the moving device (27) to move to the hanging device (28) and lift a second picture frame assembly (2B) located on the hanging device (28); rotating a pair of the lifting heads (5) by the rotating mechanism (17) to exchange the positions of the first picture frame assembly (2A) and the second picture frame assembly (2B); hanging the first picture frame assembly (2A) on the hanging device (28).

Images