Hoisting structure and display screen box

Abstract

The utility model relates to a hoisting structure and a display screen box. The hoisting structure comprises a locking assembly and a hoisting column, and the locking assembly and the hoisting column are arranged at the two ends of a frame of the display screen box body respectively. When two frames need to be connected, the hanging column moves in the axial direction to be clamped to the unlocking position of the locking piece, at the moment, the locking piece can be pulled or automatically reset, the locking piece is located at the locking position, namely, the hanging column can be connected to the locking position of the locking piece, and connection of the two frames is rapidly achieved through clamping and limiting of the locking piece and the hanging column. When the connection of the two frames needs to be released, the locking plate is pulled in the first direction to be located at the unlocking position, so that the hanging column can be separated from the unlocking position and is separated from the locking plate, and the release of the connection of the two frames is conveniently realized. The locking plate is operated to move in the first direction so that the locking plate can be located at different positions, connection and disassembly operation of the davit and the locking plate can be achieved, the hoisting structure is simpler, operation steps are fewer, and the assembly and disassembly efficiency is higher.

Description

Technical Field

[0001] The present application relates to the technical field of display screens, and in particular to a hanging structure and a display screen box. Background Art

[0002] With the rapid development of the LED industry, LED display products are becoming increasingly popular in life, and the application of display screens is becoming more and more extensive.

[0003] Among them, large LED display screens are generally assembled from multiple display screen cabinets.

[0004] In the related art, the hoisting structure used to connect the two display screen boxes is relatively complicated, so the assembly steps are complicated, which affects the assembly and disassembly efficiency. Utility Model Content

[0005] Based on this, it is necessary to provide a hoisting structure to address the problem of low assembly and disassembly efficiency in the existing display screen assembly.

[0006] A hoisting structure, comprising:

[0007] The locking assembly comprises a first locking seat and a locking plate slidably connected to the first locking seat; the locking plate has a locking position and an unlocking position;

[0008] A sling; when the hoisting structure is in a locked state, the sling is connected to the locked position, and the locking plate restricts the sling from moving along its own axial direction; when the hoisting structure is in an unlocked state, the sling can move along the axial direction to be connected to the unlocked position or to be separated from the locking plate;

[0009] The locking plate is configured to be operably moved along a first direction to switch between the locking position and the unlocking position; and the axial direction of the suspension column intersects with the first direction.

[0010] In one embodiment, the locking plate is provided with a first hole segment and a second hole segment distributed along the first direction; the aperture of the first hole segment is larger than the aperture of the second hole segment;

[0011] When the locking plate is in the locking position, the hanging column can be clamped in the second hole segment; when the locking plate is in the unlocking position, the hanging column can be inserted into the first hole segment or detached from the first hole segment.

[0012] In one of the embodiments, the suspension column is provided with an overlapping portion and a clamping portion distributed along the axial direction; when the lifting structure is in the locking state, the clamping portion is clamped in the second hole section; and the overlapping portion overlaps the second hole section.

[0013] In one embodiment, the outer diameter of the overlapping portion gradually increases from the direction in which the locking piece points to the hanging post; and / or

[0014] The clamping portion includes a clamping groove recessed along the radial direction of the suspension column.

[0015] In one embodiment, the hanging structure further includes a first elastic member connected between the locking plate and the first locking seat;

[0016] When the locking plate is in the unlocking position, the first elastic member is in a deformed state; the first elastic member is used to drive the locking plate to return to the locking position after the external force acting on the locking plate is removed.

[0017] In one embodiment, the lifting structure also includes a limit assembly, which includes a positioning cylinder connected to the first lock seat and a limit pin slidably connected to the positioning cylinder; the limit pin can move along the axial direction to penetrate the second hole section to limit the locking plate from resetting to the locking position.

[0018] In one embodiment, the limiting assembly further includes a second elastic member connected between the limiting pin and the positioning cylinder, and when the limiting pin is inserted into the second hole section, the second elastic member is in a deformed state; and the elastic force of the second elastic member is smaller than the elastic force of the first elastic member; and / or

[0019] The limiting assembly further includes a retaining spring sleeved on the limiting pin, and the retaining spring can abut against the locking plate.

[0020] In one embodiment, the lifting structure further includes a second lock seat connected to the first lock seat and a lifting member connected to the second lock seat; the locking sheet abuts against the lifting member;

[0021] The lifting member is configured to be operably movable to drive the locking plate to move along the axial direction.

[0022] In one of the embodiments, one of the locking plate and the first lock seat is provided with a guide column, and the other is provided with a guide groove for slidingly cooperating with the guide column.

[0023] A display screen box comprises a frame and the above-mentioned hanging structure, wherein the locking assembly and the hanging column are respectively installed on two opposite sides of the frame.

[0024] The above-mentioned hanging structure includes a locking assembly and a hanging column. Taking the frame of the hanging structure applied to the display box as an example, the locking assembly and the hanging column can be connected to the two ends of the same frame respectively, so that the locking assembly of one frame can be connected to the hanging column of another frame. When it is necessary to connect the two frames, the hanging column is moved axially to be clamped in the unlocking position of the locking plate. At this time, the locking plate can be pulled in the first direction or the locking plate is automatically reset to make the locking plate in the locking position, that is, the hanging column will be connected to the locking position of the locking plate. Through the clamping limit of the locking plate and the hanging column, the connection of the two frames is quickly realized. When it is necessary to release the connection between the two frames, the locking plate is pulled in the first direction so that the locking plate is in the unlocking position, so that the hanging column can be separated from the unlocking position and separated from the locking plate, so as to conveniently realize the disconnection of the two frames. The connection and disassembly operation of the hanging column and the locking plate can be realized by operating the locking plate to move in the first direction so that it is in different positions. The hanging structure is simpler, the operation steps are fewer, and the assembly and disassembly efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A top view of a lifting structure provided in an embodiment of the present application in an unlocked state.

[0026] Figure 2 for Figure 1 Exploded view of the lifting structure shown.

[0027] Figure 3 for Figure 1 The front view of the lifting structure is shown.

[0028] Figure 4 for Figure 3 Schematic diagram of the AA section of the lifting structure shown.

[0029] Figure 5 for Figure 1 A top view of the lifting structure shown in a locked state.

[0030] Figure 6 for Figure 5 The front view of the lifting structure is shown.

[0031] Figure 7 for Figure 6 Schematic diagram of the BB section of the lifting structure shown.

[0032] Figure numbers: 100, lifting structure; 110, first lock seat; 111, guide groove; 120, locking plate; 121, first hole section; 122, second hole section; 123, guide column; 130, hanging column; 131, overlapping part; 132, clamping part; 140, second lock seat; 141, lifting member; 142, protective member; 1421, bending plate; 143, handle; 150, first elastic member; 161, positioning cylinder; 162, limit pin; 163, second elastic member; 164, retaining spring. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0039] See also Figure 2 , Figure 4 and Figure 7 As shown, a hoisting structure 100 provided in one embodiment of the present application includes a locking assembly and a suspension column 130. The locking assembly includes a first locking seat 110 and a locking plate 120 slidably connected to the first locking seat 110; the locking plate 120 has a locking position and an unlocking position; when the hoisting structure 100 is in a locked state, the suspension column 130 is connected to the locking position, and the locking plate 120 limits the axial movement of the suspension column 130; when the hoisting structure 100 is in an unlocked state, the suspension column 130 can move axially to connect to the unlocking position or separate from the locking plate 120; the locking plate 120 is configured to be operably moved along a first direction to switch between a locked position and an unlocked position; the axial direction of the suspension column 130 intersects with the first direction. Figure 2 As shown, the first direction is indicated by arrow X, and the axial direction is Figure 2The vertical direction in the illustrated view is perpendicular to the axial direction of the suspension column 130 .

[0040] Taking the application of the hanging structure 100 to a display screen box as an example, the locking assembly and the hanging column 130 can be respectively connected to the two ends of the same frame of the display screen box, so that the locking assembly of one frame can cooperate with the hanging column 130 of the other frame. When it is necessary to connect the two frames, the hanging column 130 is moved axially to be engaged with the unlocked position of the locking plate 120. At this time, the locking plate 120 can be pulled along the first direction or the locking plate 120 is automatically reset to make the locking plate 120 in the locked position, that is, the hanging column 130 will be connected to the locked position of the locking plate 120. Through the locking limit of the locking plate 120 and the hanging column 130, the connection of the two frames is quickly realized. When it is necessary to release the connection between the two frames, the locking plate 120 is pulled along the first direction so that the locking plate 120 is in the unlocked position, so that the hanging column 130 can be separated from the unlocked position and separated from the locking plate 120, thereby conveniently realizing the release of the connection between the two frames. The connection and disassembly operations of the suspension column 130 and the locking plate 120 can be realized by moving the locking plate 120 along the first direction to place it in different positions. The lifting structure 100 is simpler, has fewer operation steps, and has higher assembly and disassembly efficiency.

[0041] See also Figure 2 , Figure 4 and Figure 7 As shown, in one embodiment, a special-shaped hole is provided on the locking plate 120, and the special-shaped hole includes a first hole section 121 and a second hole section 122 distributed along a first direction; the aperture of the first hole section 121 is larger than the aperture of the second hole section 122. In this way, when the lifting structure 100 is in a locked state, the corresponding hanging column 130 is clamped in the second hole section 122, that is, the locking plate 120 is in a locked position; when the locking plate 120 is in an unlocked position, the hanging column 130 is aligned with the first hole section 121, so that the hanging column 130 can be inserted into the first hole section 121 or separated from the first hole section 121. When the lifting structure 100 is in an unlocked state, even if the locking plate 120 is in a locked position, the hanging column 130 can be pushed open by approaching the locking plate 120 in the axial direction, so that the locking plate 120 moves from the locked position to the unlocked position, and then the hanging column 130 passes through the first hole section 121. Then, the locking plate 120 can be automatically reset or pulled again to move it to the locking position, thereby locking the hanging column 130 and the locking plate 120.

[0042] See also Figure 2 , Figures 5 to 7As shown, in one embodiment, the suspension column 130 is provided with an overlap portion 131 and a clamping portion 132 distributed along the axial direction; when the suspension structure 100 is in a locked state, the clamping portion 132 is clamped to the second hole section 122; the overlap portion 131 is overlapped to the second hole section 122. The outer diameter of the overlap portion 131 is larger than the aperture of the second hole section 122 and smaller than the aperture of the first hole section 121. The outer diameter of the clamping portion 132 can be adapted to the aperture of the second hole section 122 or slightly smaller than the aperture of the second hole section 122. Through this arrangement, the suspension column 130 can pass through the first hole section 121 and can be clamped to the second hole section 122 through the clamping portion 132. At the same time, the suspension column 130 clamped to the second hole section 122 will not fall under the limiting effect of the overlap portion 131, thereby ensuring the connection reliability between the locking plate 120 and the suspension column 130.

[0043] See also Figure 2 As shown, in one embodiment, the outer diameter of the overlap portion 131 gradually increases since the locking piece 120 points to the direction of the suspension column 130. That is, the cross section of the overlap portion 131 along the axial direction is conical. Through this conical surface design, it is convenient for the overlap portion 131 to push the locking piece 120 to the unlocked position, which facilitates the connection between the suspension column 130 and the locking piece 120. The clamping portion 132 can be a clamping groove recessed along the radial direction of the suspension column 130. In this way, the outer diameter of the overlap portion 131 does not need to be set too large, thereby reducing the occupied space of the hanging structure 100.

[0044] See also Figure 2 , Figure 4 and Figure 7 As shown, in one embodiment, the lifting structure 100 also includes a second lock seat 140 connected to the first lock seat 110 and a lifting member 141 connected to the second lock seat 140, and the locking plate 120 abuts against the lifting member 141; the lifting member 141 is configured to move operably to drive the locking plate 120 to move axially.

[0045] Specifically, Figure 2 , Figure 4 and Figure 7 As shown, the lifting member 141 is threadedly connected to the second lock seat 140. The second lock seat 140 is provided with an internal thread, and the lifting member 141 is provided with an external thread. Since the position of the second lock seat 140 is fixed, when the lifting member 141 is rotated around the axial direction of the hanging column 130, the lifting member 141 will also move axially relative to the second lock seat 140. Figure 2In the perspective shown, the lifting member 141 will move up and down, thereby driving the locking piece 120 that contacts the lifting member 141 to move up and down, thereby adjusting the height of the locking piece 120. When the locking piece 120 approaches the first lock seat 110, that is, moves upward, the distance between the locking piece 120 and the suspension column 130 gradually decreases, thereby increasing the locking force between the two, achieving the locking between the locking piece 120 and the suspension column 130, and then achieving the locking between the two frames. When the locking piece 120 moves downward, the distance between the locking piece 120 and the suspension column 130 increases, so that the locking force between the two is eliminated. Specifically, a handle 143 is connected to the lifting member 141, and the lifting member 141 is driven to rotate by rotating the handle 143, which makes the operation more convenient.

[0046] like Figure 2 , Figure 4 and Figure 7 As shown, in another embodiment, the lifting unit further includes a protective member 142 connected to the lifting member 141. It can be understood that a through hole is provided in the protective member 142 for the suspension column 130 to pass through. The lifting member 141 is provided with a mounting hole, and the protective member 142 can be sleeved on the hole wall of the mounting hole of the lifting member 141, and the locking piece 120 abuts against the protective member 142. When the lifting member 141 moves up and down, the protective member 142 moves synchronously, thereby driving the locking piece 120 to move up and down.

[0047] By providing the protective member 142 in the lifting member 141, the hanging column 130 does not directly contact the lifting member 141, thereby preventing the hanging column 130 from colliding, scratching and damaging the hole wall of the lifting member 141 when passing through the installation hole of the lifting member 141. Furthermore, a bending piece 1421 is provided at one end of the protective member 142 facing the locking plate 120, and the bending piece 1421 is located between the lifting member 141 and the locking plate 120. By providing the bending piece 1421, it is possible to avoid direct contact, extrusion and wear between the lifting member 141 and the locking plate 120, thereby improving the service life of the lifting member 141. The protective member 142 may be a sleeve structure.

[0048] See also Figure 2 As shown, in one embodiment, one of the locking piece 120 and the first lock seat 110 is provided with a guide column 123, and the other is provided with a guide groove 111 for slidingly cooperating with the guide column 123. Specifically, the locking piece 120 is provided with a guide column 123, and the first lock seat 110 is provided with a guide groove 111. When the first locking piece 120 is pulled to move along the first direction, the guide column 123 slides in the guide groove 111. Through this arrangement, the movement of the first locking piece 120 is guided, so that the position switching of the first locking piece 120 is more accurate. Among them, a handle is provided at the end of the locking piece 120 to facilitate the operator to pull the locking piece 120. It can be understood that the setting positions of the guide column 123 and the guide groove 111 can be interchanged, that is, the guide column 123 is provided on the first lock seat 110, and the guide groove 111 is provided on the locking piece 120.

[0049] See also Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, the hanging structure 100 further includes a first elastic member 150 connected between the locking plate 120 and the first locking seat 110. When the locking plate 120 is in the unlocking position, the first elastic member 150 is in a deformed state, so that when the external force acting on the locking plate 120 is removed, the elastic force of the first elastic member 150 will drive the locking plate 120 to automatically return to the locking position. In other words, under the premise of not operating the locking plate 120, the hanging column 130 will be aligned with the locking position. When the hanging column 130 moves up and pushes the locking plate 120 open, the locking plate 120 will automatically return to the locking position under the action of the first elastic member 150, so that the second hole section 122 is engaged with the clamping portion 132 of the hanging column 130, thereby preventing the hanging column 130 from falling.

[0050] See also Figure 2 and Figure 4 As shown, in one embodiment, the hoisting structure 100 further includes a limiting assembly, which includes a positioning cylinder 161 connected to the first lock seat 110 and a limiting pin 162 slidably connected to the positioning cylinder 161; the limiting pin 162 can be moved axially to penetrate the second hole section 122 to limit the locking plate 120 from resetting to the locking position. When the hoisting structure 100 with multiple frames needs to be disconnected, one of the locking plates 120 is first pulled out to put it in the unlocking position. In this state, the hanging column 130 can be separated from the locking plate 120 to achieve the unlocking of the hanging column 130. Then press the limiting pin 162 at the corresponding position to insert it into the second hole section 122 of the locking plate 120 to overcome the force applied to the locking plate 120 by the first elastic member 150, thereby limiting the locking plate 120 from resetting to the locking position. Then pull the locking plates 120 of other hoisting structures 100 in turn, and insert the limiting pin 162 into the second hole section 122 to limit the locking plate 120 from resetting. When the plurality of locking pieces 120 are all moved to the unlocking position, the disassembly operation of each frame is completed.

[0051] See also Figure 2 and Figure 4As shown, in one embodiment, the limiting assembly further includes a second elastic member 163 connected between the limiting pin 162 and the positioning cylinder 161. When the limiting pin 162 is inserted into the second hole section 122, the second elastic member 163 is in a deformed state; and the elastic force of the second elastic member 163 is less than the elastic force of the first elastic member 150. In other words, under the elastic force of the second elastic member 163, the limiting pin 162 has a tendency to separate from the locking plate 120. By setting the elastic force of the second elastic member 163 to be less than the elastic force of the first elastic member 150, under the action of the first elastic member 150, the second hole section 122 of the locking plate 120 will abut against the limiting pin 162, so that the limiting pin 162 can stay in the second hole section 122 of the locking plate 120, so that the suspension column 130 is aligned with the first hole section 121 with a larger aperture, thereby achieving the purpose of unlocking the suspension column 130.

[0052] See also Figure 2 and Figure 4 As shown, in another embodiment, the limit assembly further includes a retaining spring 164 sleeved on the limit pin 162, and the retaining spring 164 can abut against the positioning tube 161. The limit pin 162 can be T-shaped, and an annular groove is provided on the limit pin 162 for sleeve-engaging the retaining spring 164. By providing the retaining spring 164, when the limit pin 162 moves upward, the retaining spring 164 can prevent the limit pin 162 from being separated from the positioning tube 161 under the action of the second elastic member 163. When the limit pin 162 moves downward, the retaining spring 164 will abut against the locking plate 120, thereby reminding the operator that the pressing is in place, and the operation is more convenient.

[0053] Furthermore, an embodiment of the present application also provides a display screen box (not shown), including a frame (not shown) and the above-mentioned hanging structure 100, and the locking assembly and the hanging column 130 are respectively installed on opposite sides of the frame.

[0054] Since the two ends of the frame are respectively provided with a locking assembly and a hanging column 130, the locking assembly of one frame can be connected to the hanging column 130 of the other frame. When the two frames need to be connected, the hanging column 130 is moved axially to connect to the unlocked position of the locking plate 120. At this time, the locking plate 120 can be pulled along the first direction or the locking plate 120 is automatically reset to make the locking plate 120 in the locked position, that is, the hanging column 130 is connected to the locked position. Through the clamping limit of the locking plate 120 and the hanging column 130, the connection of the two frames is quickly realized. When the connection between the two frames needs to be released, the locking plate 120 is pulled along the first direction so that the locking plate 120 is in the unlocked position, so that the hanging column 130 can be separated from the unlocked position and separated from the locking plate 120, so as to conveniently realize the release of the connection between the two frames. The connection and disassembly operations of the hanging column 130 and the locking plate 120 can be realized by operating the locking plate 120 to move along the first direction so that it is in different positions. The hoisting structure 100 is simpler, has fewer operating steps, and has higher assembly and disassembly efficiency.

[0055] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A hoisting structure, characterized in that: The hoisting structure comprises: The locking assembly comprises a first locking seat and a locking plate slidably connected to the first locking seat; the locking plate has a locking position and an unlocking position; A sling; when the hoisting structure is in a locked state, the sling is connected to the locked position, and the locking plate restricts the sling from moving along its own axial direction; when the hoisting structure is in an unlocked state, the sling can move along the axial direction to be connected to the unlocked position or to be separated from the locking plate; The locking plate is configured to be operably moved along a first direction to switch between the locking position and the unlocking position; and the axial direction of the suspension column intersects with the first direction.

2. The hoisting structure according to claim 1, characterized in that: The locking plate is provided with a first hole segment and a second hole segment distributed along the first direction; the aperture of the first hole segment is larger than the aperture of the second hole segment; When the locking plate is in the locking position, the hanging column can be clamped in the second hole segment; when the locking plate is in the unlocking position, the hanging column can be inserted into the first hole segment or detached from the first hole segment.

3. The hoisting structure according to claim 2, characterized in that: The suspension column is provided with an overlapping portion and a clamping portion distributed along the axial direction; when the suspension structure is in the locking state, the clamping portion is clamped in the second hole section; and the overlapping portion is overlapped in the second hole section.

4. The hoisting structure according to claim 3, characterized in that: From the direction in which the locking piece points to the hanging column, the outer diameter of the overlapping portion gradually increases; and / or The clamping portion includes a clamping groove recessed along the radial direction of the suspension column.

5. The hoisting structure according to any one of claims 2 to 4, characterized in that: The lifting structure further includes a first elastic member connected between the locking plate and the first locking seat; When the locking plate is in the unlocking position, the first elastic member is in a deformed state; the first elastic member is used to drive the locking plate to return to the locking position after the external force acting on the locking plate is removed.

6. The hoisting structure according to claim 5, characterized in that: The lifting structure also includes a limiting assembly, which includes a positioning cylinder connected to the first lock seat and a limiting pin slidably connected to the positioning cylinder; the limiting pin can move along the axial direction to penetrate the second hole section to limit the locking plate from resetting to the locking position.

7. The hoisting structure according to claim 6, characterized in that: The limiting assembly further comprises a second elastic member connected between the limiting pin and the positioning cylinder, and when the limiting pin is inserted into the second hole section, the second elastic member is in a deformed state; and the elastic force of the second elastic member is smaller than the elastic force of the first elastic member; and / or The limiting assembly further includes a retaining spring sleeved on the limiting pin, and the retaining spring can abut against the locking plate.

8. The hoisting structure according to any one of claims 1 to 4, 6 to 7, characterized in that: The lifting structure further comprises a second lock seat connected to the first lock seat and a lifting member connected to the second lock seat; the locking sheet abuts against the lifting member; The lifting member is configured to be operably movable to drive the locking plate to move along the axial direction.

9. The hoisting structure according to claim 8, characterized in that: One of the locking plate and the first locking seat is provided with a guide column, and the other is provided with a guide groove for slidingly cooperating with the guide column.

10. A display screen box, characterized in that: It comprises a frame and a hanging structure as claimed in any one of claims 1 to 9, wherein the locking assembly and the hanging column are respectively installed on opposite sides of the frame.

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