Foldable maintenance rack

Abstract

The utility model provides a kind of foldable maintenance frame, comprising: load-bearing assembly;First ladder stand assembly, including first pivot and first ladder stand frame, the first pivot is arranged between the bottom of the load-bearing assembly and one end of the first ladder stand frame, to make the first ladder stand frame rotate relative to the load-bearing assembly;Second ladder stand assembly, including second pivot and second ladder stand frame, the second pivot is arranged between one end of the second ladder stand frame and the other end of the first ladder stand frame, to make the second ladder stand frame rotate relative to the first ladder stand frame;When working, first drive the first ladder stand assembly and the second ladder stand assembly from first state to second state, then drive the second ladder stand assembly from second state to third state.The utility model can adapt to narrow and exist inclined maintenance space, which is convenient for maintenance personnel to climb to maintenance point for maintenance top display screen.

Description

Technical Field

[0001] This utility model relates to the field of display screen repair technology, and in particular to a foldable repair rack. Background Technology

[0002] like Figure 1 As shown, in the typical structural design of an indoor holographic screen, in order to achieve accurate imaging and optimized spatial layout of holographic images, a holographic film is usually placed at a 45° angle below the top display screen. The angle between the holographic film and the top display screen must be strictly controlled at 45° to ensure that the light reflection path conforms to the principle of holographic imaging and to guarantee the clarity, three-dimensionality and viewing angle of the image.

[0003] However, while the 45° angled holographic film meets imaging requirements, it creates a narrow space below the top display screen, significantly reducing the maintenance space for the screen. When performing frontal maintenance, conventional ladders cannot fit into this narrow and obstructed space, making it difficult for maintenance personnel to reach the maintenance position.

[0004] Therefore, it is necessary to provide a foldable maintenance rack to solve the above-mentioned problems existing in the prior art. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a foldable maintenance rack to solve the technical problem that the prior art is difficult to adapt to small maintenance spaces with tilted obstructions, thus making maintenance impossible.

[0006] To solve the above-mentioned technical problems, this utility model provides a foldable maintenance rack, comprising:

[0007] Load-bearing components;

[0008] A first climbing ladder assembly includes a first pivot and a first climbing ladder frame. The first pivot is disposed between the bottom of the load-bearing assembly and one end of the first climbing ladder frame, so that the first climbing ladder frame can rotate relative to the load-bearing assembly.

[0009] The second climbing ladder assembly includes a second rotating shaft and a second climbing ladder frame. The second rotating shaft is disposed between one end of the second climbing ladder frame and the other end of the first climbing ladder frame, so that the second climbing ladder frame can rotate relative to the first climbing ladder frame.

[0010] During operation, the first climbing ladder assembly and the second climbing ladder assembly are first moved from the first state to the second state, and then the second climbing ladder assembly is moved from the second state to the third state.

[0011] The foldable maintenance rack provided by this utility model has the following beneficial effects:

[0012] A first pivot is provided between the bottom of the load-bearing component and one end of the first ladder frame, allowing the first ladder frame to rotate relative to the load-bearing component. Simultaneously, a second pivot is provided between one end of the second ladder frame and the other end of the first ladder frame, allowing the second ladder frame to rotate relative to the first ladder frame. In the first state, the first ladder frame is folded to one side of the load-bearing component, and the second ladder frame is folded perpendicular to the first ladder frame. This state facilitates the storage of the foldable maintenance rack, saving storage space. When performing maintenance on the display screen, the first ladder frame is first opened. The ladder frame is rotated to a certain angle with one side of the load-bearing component and then locked. At this time, the first and second ladder components are in the second state. Then, the second ladder frame is opened, rotated to be in the same straight line as the first ladder frame, and then locked. That is, the second ladder frame is in the third state. At this time, the line connecting the first and second ladder frames is at a certain angle, which makes it easy to reach into the inside of the display screen to inspect the top display screen. It can be adapted to narrow maintenance spaces with tilted obstructions, allowing maintenance personnel to reach the maintenance point through the first and second ladder components to perform maintenance work.

[0013] Furthermore, the first ladder assembly also includes a first connector and a second connector, the first connector being disposed at the bottom of the load-bearing assembly, and the second connector being disposed at one end of the first ladder frame; the first pivot passes through the first connector and the second connector, so that the second connector rotates relative to the first connector.

[0014] Furthermore, the second ladder assembly also includes a third connector and a fourth connector, the third connector being disposed at the other end of the first ladder frame and the fourth connector being disposed at one end of the second ladder frame; the second pivot passes through the third connector and the fourth connector to allow the fourth connector to rotate relative to the third connector.

[0015] Furthermore, the load-bearing component includes a counterweight and a load-bearing frame, with the counterweight disposed inside the load-bearing frame.

[0016] Furthermore, the load-bearing component also includes a first fixing member and a second fixing member, wherein the first fixing member, the second fixing member and the first connecting member are evenly distributed along the length direction of the load-bearing frame on one side of the load-bearing frame.

[0017] Furthermore, the first ladder assembly also includes a first mounting member and a first fixing rod, one end of the first fixing rod being connected to the first mounting member; when the first ladder assembly is in the second state, the other end of the first fixing rod is connected to the first fixing member.

[0018] Furthermore, the second ladder assembly also includes a second mounting member and a second fixing rod, one end of the second fixing rod being connected to the second mounting member; when the second ladder assembly is in the third state, the other end of the second fixing rod is connected to the first mounting member.

[0019] Furthermore, the first ladder assembly also includes a third mounting component, which is fixed to the second fixing component by fasteners when the first ladder assembly is in the second state.

[0020] Furthermore, the third mounting member and the second fixing member are provided with corresponding fastening holes, and the fastener passes through the fastening holes to fix the third mounting member and the second fixing member.

[0021] Furthermore, both the first ladder assembly and the second ladder assembly include multiple footboards. Attached Figure Description

[0022] Figure 1 A schematic diagram illustrating an application scenario of an indoor holographic screen tilted at 45° using existing technology;

[0023] Figure 2 This is a schematic diagram of the foldable maintenance rack in its first state according to an embodiment of the present invention;

[0024] Figure 3 for Figure 2 Top view;

[0025] Figure 4 This is a schematic diagram of the foldable maintenance rack in the second state according to an embodiment of the present invention;

[0026] Figure 5 for Figure 4 Top view;

[0027] Figure 6 This is a schematic diagram of the foldable maintenance rack in a third state according to an embodiment of the present invention;

[0028] Figure 7 for Figure 6 Top view;

[0029] Figure 8 This is a schematic diagram illustrating the application of the foldable inspection rack of this utility model to an indoor holographic screen scene tilted at 45°.

[0030] Component designation explanation

[0031] 1. Load-bearing component; 11. Counterweight; 12. Load-bearing frame; 13. First fixing component; 14. Second fixing component; 2. First ladder assembly; 21. First pivot; 22. First ladder frame; 23. First connector; 24. First mounting component; 25. First fixing rod; 26. Third mounting component; 3. Second ladder assembly; 31. Second pivot; 32. Second ladder frame; 33. Second mounting component; 34. Second fixing rod; 4. Fastener. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0033] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.

[0036] like Figures 2-8 As shown, an embodiment of this utility model provides a foldable maintenance rack, including: a load-bearing component 1, a first ladder component 2, and a second ladder component 3. The load-bearing component 1 is used to stabilize the first ladder component 2 and the second ladder component 3 when maintaining the display screen, ensuring the safety of maintenance personnel.

[0037] The first ladder assembly 2 includes a first pivot 21 and a first ladder frame 22. The first pivot 21 is disposed between the bottom of the load-bearing assembly 1 and one end of the first ladder frame 22, so that the first ladder frame 22 can rotate relative to the load-bearing assembly 1. The second ladder assembly 3 includes a second pivot 31 and a second ladder frame 32. The second pivot 31 is disposed between one end of the second ladder frame 32 and the other end of the first ladder frame 22, so that the second ladder frame 32 can rotate relative to the first ladder frame 22.

[0038] A first pivot 21 is provided between the bottom of the load-bearing component 1 and one end of the first ladder frame 22, allowing the first ladder frame 22 to rotate relative to the load-bearing component 1. Simultaneously, a second pivot 31 is provided between one end of the second ladder frame 32 and the other end of the first ladder frame 22, allowing the second ladder frame 32 to rotate relative to the first ladder frame 22. When the foldable maintenance rack is in its first state, the first ladder frame 22 is folded to one side of the load-bearing component 1, and the second ladder frame 32 is folded perpendicular to the first ladder frame 22. This state facilitates the storage of the foldable maintenance rack, saving storage space. When using the foldable maintenance rack to inspect the top display screen, first open the first ladder frame 22, rotate it to a certain angle with one side of the load-bearing component 1, and then lock it in place. At this time, the first ladder component 2 and the second ladder component 3 are in the second state. Then open the second ladder frame 32, rotate it to be on the same straight line as the first ladder frame 22, and then lock it in place. That is, the second ladder frame 32 is in the third state. At this time, the line connecting the first ladder frame 22 and the second ladder frame 32 is at a certain angle, which makes it easy to reach into the inside of the display screen to inspect the top display screen. It is suitable for narrow maintenance spaces with tilted obstructions, allowing maintenance personnel to reach the maintenance point by climbing the first ladder component 2 and the second ladder component 3 to perform maintenance work.

[0039] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments of this utility model, the first ladder assembly 2 further includes a first connector 23 and a second connector. The first connector 23 is disposed at the bottom of the load-bearing assembly 1, and the second connector is disposed at one end of the first ladder frame 22. A first rotating shaft 21 passes through the first connector 23 and the second connector, so that the second connector rotates relative to the first connector 23. Exemplarily, two first connectors 23 are respectively fixedly disposed on both sides of the bottom of the load-bearing assembly 1, and two second connectors are respectively fixedly disposed on both sides of one end of the first ladder frame 22. The first connector 23 and the second connector are each provided with corresponding first rotating shaft holes, and the two ends of the first rotating shaft 21 are respectively disposed in the first rotating shaft holes, so that the second connector rotates relative to the first connector 23, driving the first ladder frame 22 to rotate relative to the first connector 23, thereby causing the first ladder frame 22 to rotate to a certain angle of inclination with one side of the load-bearing assembly 1, that is, the first ladder assembly 2 is in the second state. At this time, the rotation of the first ladder frame 22 simultaneously drives the second ladder frame 32 to move to the second state.

[0040] like Figure 4 , Figure 5 and Figure 6As shown, in some embodiments of this utility model, the second ladder assembly 3 further includes a third connector and a fourth connector. The third connector is disposed at the other end of the first ladder frame 22, and the fourth connector is disposed at one end of the second ladder frame 32. A second rotating shaft 31 passes through the third connector and the fourth connector, so that the fourth connector rotates relative to the third connector. Exemplarily, two third connectors are respectively fixedly disposed on both sides of the other end of the first ladder frame 22, and two fourth connectors are respectively fixedly disposed on both sides of one end of the second ladder frame 32. The third connector and the fourth connector are each provided with corresponding second rotating shaft holes, and the two ends of the second rotating shaft 31 are respectively disposed in the second rotating shaft holes, so that the fourth connector rotates relative to the third connector, driving the second ladder frame 32 to rotate relative to the third connector, thereby causing the second ladder frame 32 to rotate until it is on the same straight line as the first ladder frame 22, that is, the line connecting the second ladder frame 32 and the first ladder frame 22 presents a certain tilt angle, at which time the second ladder frame 32 is in the third state.

[0041] like Figure 6 and Figure 7 As shown, in some embodiments of this utility model, the load-bearing component 1 includes counterweights 11 and a load-bearing frame 12. The counterweights 11 are disposed inside the load-bearing frame 12. Exemplarily, the load-bearing frame 12 is a rectangular frame, with a pulley system installed at each of the four corners of the bottom of the rectangular frame, facilitating the movement of the foldable maintenance rack to the maintenance work location by workers. Six counterweights 11 are provided, each weighing more than 50 kg, with a total weight of not less than 300 kg, thereby stabilizing the first ladder assembly 2 and the second ladder assembly 3 when the first ladder frame 22 and the second ladder frame 32 are opened, ensuring the personal safety of maintenance personnel during the maintenance process.

[0042] like Figure 6 and Figure 7 As shown, in some embodiments of this utility model, the load-bearing component 1 further includes a first fixing member 13 and a second fixing member 14. The first fixing member 13, the second fixing member 14, and the first connecting member 23 are evenly distributed along the length of the load-bearing frame 12 on one side of the load-bearing frame 12. Specifically, two corresponding first fixing members 13, two second fixing members 14, and two first connecting members 23 are arranged sequentially from top to bottom on one side of the rectangular load-bearing frame 12.

[0043] like Figure 4 and Figure 5As shown, in some embodiments of this utility model, the first ladder assembly 2 further includes a first mounting member 24 and a first fixing rod 25. One end of the first fixing rod 25 is connected to the first mounting member 24. When the first ladder assembly 2 is in the second state, the other end of the first fixing rod 25 is connected to the first fixing member 13. Specifically, both ends of the first fixing rod 25 are provided with first through holes, and the first mounting member 24 and the first fixing member 13 are provided with first mounting holes that are adapted to the first through holes. By passing a first bolt through the first through hole and the first mounting hole, one end of the first fixing rod 25 is fixedly connected to the first mounting member 24, and the other end is fixedly connected to the first fixing member 13, thereby further stabilizing the first ladder frame 22 and ensuring the safety of maintenance personnel.

[0044] like Figure 6 and Figure 7 As shown, in some embodiments of this utility model, the second ladder assembly 3 further includes a second mounting member 33 and a second fixing rod 34. One end of the second fixing rod 34 is connected to the second mounting member 33. When the second ladder assembly 3 is in the third state, the other end of the second fixing rod 34 is connected to the first mounting member 24. Specifically, both ends of the second fixing rod 34 are provided with second through holes, and the second mounting member 33 and the first mounting member 24 are provided with second mounting holes corresponding to the second through holes. By passing a second bolt through the second through holes and the second mounting holes, one end of the second fixing rod 34 is fixed to the second mounting member 33, and the other end is fixed to the first mounting member 24, further enhancing the stability of the first ladder frame 22 and the second ladder frame 32 and ensuring the safety of maintenance personnel.

[0045] like Figure 4 and Figure 5 As shown, in some embodiments of this utility model, the first ladder assembly 2 further includes a third mounting member 26. When the first ladder assembly 2 is in the second state, the third mounting member 26 is fixed to the second fixing member 14 by fasteners 4. Specifically, when the first ladder frame 22 is opened to a certain tilt angle, the third mounting member 26 and the second fixing member 14 are fixed by fasteners 4, further enhancing the stability of the first ladder assembly 1.

[0046] like Figure 6 As shown, in some embodiments of this utility model, the third mounting member 26 and the second fixing member 14 are provided with corresponding fastening holes, and the fastener 4 passes through the fastening holes to fix the third mounting member 26 and the second fixing member 14. By fixing the third mounting member 26 and the second fixing member 14 by means of fastener 4 passing through the fastening holes, the structure is simple and the stability of the first ladder assembly 1 is enhanced.

[0047] like Figure 2As shown, in some embodiments of this utility model, both the first climbing ladder assembly 2 and the second climbing ladder assembly 3 include multiple steps. Specifically, the number of steps can be designed according to the length of the first climbing ladder frame 22 and the second climbing ladder frame 32 to facilitate climbing by maintenance personnel.

[0048] like Figure 8 As shown, exemplarily, the steps for using the foldable maintenance rack according to this utility model embodiment are as follows: Inspect the foldable maintenance rack in its first state to ensure all accessories and counterweights 11 are complete; survey the maintenance points; move the foldable maintenance rack in its first state to the maintenance points; open the first ladder frame 22; place the counterweights 11 inside the load-bearing frame 12; fix the third mounting member 26 to the second fixing member 14 by fasteners 4 passing through the fastening holes; and fix one end of the first fixing rod 25 to the first mounting member 24 and the other end to the first fixing member 25 by first bolts passing through the first through hole and the first mounting hole. 13. Fixed installation: The first ladder assembly 2 has been secured to the load-bearing assembly 1. Then, the second ladder frame 32 is opened, and the second bolt passes through the second through hole and the second mounting hole. One end of the second fixing rod 34 is fixed to the second mounting part 33, and the other end is fixed to the first mounting part 24. At this time, the second ladder frame 32 and the first ladder frame 22 are on the same straight line, and the line connecting the two forms a certain tilt angle, which makes it easy to reach into the inside of the top display screen. This allows maintenance personnel to climb to the maintenance point to carry out maintenance work on the top display screen, solving the technical problem that conventional ladders are difficult to adapt to narrow maintenance spaces with tilt and obstruction, resulting in the inability to carry out maintenance.

[0049] In summary, addressing the technical problem of existing technologies being unable to adapt to narrow and obstructed maintenance spaces, thus hindering maintenance, this utility model provides a foldable maintenance rack. A first pivot is provided between the bottom of the load-bearing component and one end of the first ladder frame, allowing the first ladder frame to rotate relative to the load-bearing component. Simultaneously, a second pivot is provided between one end of the second ladder frame and the other end of the first ladder frame, allowing the second ladder frame to rotate relative to the first ladder frame. In the first state, the first ladder frame is folded to one side of the load-bearing component, and the second ladder frame is folded perpendicular to the first ladder frame. This state facilitates the foldable maintenance rack. The repair rack saves storage space. When inspecting the display screen, first open the first ladder frame, rotate it to a certain angle with one side of the load-bearing component, and then lock it in place. At this time, the first and second ladder components are in the second state. Then open the second ladder frame, rotate it to be in the same straight line as the first ladder frame, and then lock it in place. This is the third state, where the line connecting the first and second ladder frames is at a certain angle, facilitating access to the inside of the display screen for inspection of the top display screen. It can be adapted to narrow maintenance spaces with tilted obstructions, allowing maintenance personnel to reach the inspection points and perform maintenance work via the first and second ladder components. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0050] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A foldable maintenance rack, characterized in that, include: Load-bearing components; A first climbing ladder assembly includes a first pivot and a first climbing ladder frame. The first pivot is disposed between the bottom of the load-bearing assembly and one end of the first climbing ladder frame, so that the first climbing ladder frame can rotate relative to the load-bearing assembly. The second climbing ladder assembly includes a second rotating shaft and a second climbing ladder frame. The second rotating shaft is disposed between one end of the second climbing ladder frame and the other end of the first climbing ladder frame, so that the second climbing ladder frame can rotate relative to the first climbing ladder frame. During operation, the first climbing ladder assembly and the second climbing ladder assembly are first moved from the first state to the second state, and then the second climbing ladder assembly is moved from the second state to the third state.

2. The foldable maintenance rack according to claim 1, characterized in that, The first ladder assembly further includes a first connector and a second connector. The first connector is disposed at the bottom of the load-bearing assembly, and the second connector is disposed at one end of the first ladder frame. The first pivot passes through the first connector and the second connector to allow the second connector to rotate relative to the first connector.

3. The foldable maintenance rack according to claim 1, characterized in that, The second ladder assembly further includes a third connector and a fourth connector. The third connector is disposed at the other end of the first ladder frame, and the fourth connector is disposed at one end of the second ladder frame. The second pivot passes through the third connector and the fourth connector to allow the fourth connector to rotate relative to the third connector.

4. The foldable maintenance rack according to claim 2, characterized in that, The load-bearing component includes a counterweight and a load-bearing frame, with the counterweight disposed inside the load-bearing frame.

5. The foldable maintenance rack according to claim 4, characterized in that, The load-bearing component further includes a first fixing member and a second fixing member, wherein the first fixing member, the second fixing member and the first connecting member are evenly distributed along the length direction of the load-bearing frame on one side of the load-bearing frame.

6. The foldable maintenance rack according to claim 5, characterized in that, The first ladder assembly further includes a first mounting component and a first fixing rod, one end of the first fixing rod being connected to the first mounting component; when the first ladder assembly is in the second state, the other end of the first fixing rod is connected to the first fixing component.

7. The foldable maintenance rack according to claim 6, characterized in that, The second ladder assembly further includes a second mounting member and a second fixing rod, one end of the second fixing rod being connected to the second mounting member; when the second ladder assembly is in the third state, the other end of the second fixing rod is connected to the first mounting member.

8. The foldable maintenance rack according to claim 5, characterized in that, The first ladder assembly also includes a third mounting component, which is fixed to the second fixing component by fasteners when the first ladder assembly is in the second state.

9. The foldable maintenance rack according to claim 8, characterized in that, The third mounting component and the second fixing component have corresponding fastening holes, and the fastener passes through the fastening holes to fix the third mounting component and the second fixing component.

10. The foldable maintenance rack according to claim 1, characterized in that, Both the first ladder assembly and the second ladder assembly include multiple footboards.

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