Base and packaging box

Abstract

The utility model provides a base and a packaging box, and the base comprises a base body which is used for placing a workpiece, and the workpiece is provided with a suspended end; the supporting component is movably arranged on the seat body, the supporting component is provided with a supporting end, and the supporting end and the suspended end are located on the same side of the seat body; the stop part is arranged on the seat body and used for fixing the position, relative to the seat body, of the supporting part in the moving direction; and the limiting component is arranged on the seat body and used for being matched with the supporting component in a limiting mode so as to prevent the supporting component from relatively moving in the direction from the seat body to the supporting end relative to the seat body. By means of the scheme, the problems that in the prior art, after the display screen is installed on the base, the bottom end of the base is usually located below the base and is in a suspended state, the lifting column is prone to being bent or broken, and smoothness and stability in the transportation process of the LED display screen are affected can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of packing boxes, and particularly relates to a base and a packing box. Background Art

[0002] In the field of modern display technologies, LED display screens are widely used in various occasions such as advertisements, stage performances, and sports events due to their advantages of high brightness, low power consumption, and long service life.

[0003] Specifically, existing LED display screens are usually equipped with a base to facilitate adjusting the height of the display screen to adapt to different usage environments. Specifically, during transportation or transfer, the display screen needs to be installed on the base. However, after the display screen is installed on the base, the bottom end of the base is usually located below the base and in a suspended state. The above setting is likely to cause bending or breakage of the lifting column, affecting the smoothness and stability of the LED display screen during transportation. Summary of the Utility Model

[0004] The utility model provides a base and a packing box to solve the problem in the prior art that after the display screen is installed on the base, the bottom end of the base is usually located below the base and in a suspended state, which is likely to cause bending or breakage of the lifting column, affecting the smoothness and stability of the LED display screen during transportation.

[0005] According to one aspect of the utility model, a base is provided. The base includes: a seat body for placing a workpiece, the workpiece having a suspended end; a support member movably arranged on the seat body, the support member having a support end, and the support end and the suspended end being located on the same side of the seat body; a stop member arranged on the seat body, the stop member being used for fixing the position of the support member relative to the seat body in the moving direction; and a limiting member arranged on the seat body, the limiting member being used for limiting cooperation with the support member to prevent the support member from relatively moving relative to the seat body in the direction from the seat body to the support end.

[0006] Further, the seat body includes a main body part and a movable part, the support member is movably arranged on the main body part, the movable part is detachably arranged on the main body part, and the stop member includes a stop part arranged on the movable part and in positioning cooperation with the support member.

[0007] Further, a guide groove is arranged on the main body part, the extending direction of the guide groove is the same as the moving direction of the support member, the support member is movably arranged in the guide groove, and one end of the guide groove close to the suspended end cooperates with the stop member to realize the positioning of the support member at the support position.

[0008] Further, the limiting member is provided with a limiting groove and a first sliding groove that communicate with each other in the direction from the seat body to the support end. The extending directions of the limiting groove and the first sliding groove are the same as the moving direction of the support member respectively. The support end is located outside the first sliding groove, and a part of the support member is movably inserted into the limiting groove, and the limiting groove is in limiting cooperation with the part of the support member located in the limiting groove.

[0009] Further, the limiting member includes a first member and a second member that are buckled with each other in the direction from the support end to the seat body. A limiting groove is formed between the first member and the second member, and the first sliding groove is provided on the first member.

[0010] Further, the distance between the support end and the seat body is adjustable.

[0011] Further, the support member includes: a nut seat movably provided on the seat body; an adjusting screw rod having an operating end and a connecting end oppositely arranged in the direction from the seat body to the support end. The adjusting screw rod is inserted into the nut seat and is in threaded cooperation with the nut seat; a support plate provided at the connecting end of the adjusting screw rod, and the support plate forms the support end.

[0012] Further, the support member further includes: a locking nut sleeved on the outer periphery of the adjusting screw rod and provided close to the operating end. The locking nut is in threaded connection with the adjusting screw rod and is used to abut against the nut seat.

[0013] Further, the base is provided with an installation cavity, the top of the installation cavity is an open structure, and the support member and the stop member are respectively provided at the bottom of the base.

[0014] According to another aspect of the present invention, there is provided a packing box, which includes: the above-mentioned base; a protective shell provided at the opening of the installation cavity of the base, and the protective shell and the base cooperate to form an installation space.

[0015] Applying the technical solution of the present invention, after the workpiece is placed on the base, the workpiece has a suspended end. By adjusting the position of the support member relative to the base, the support end of the support member supports the suspended end of the workpiece, and the positions of the support member and the seat body are fixed by the stop member. With such a setting, the support member provides an additional support point for the workpiece, reducing the possibility of material fatigue, bending or even fracture of the workpiece caused by the suspension of the suspended end of the workpiece. Moreover, the above setting reduces the possibility of the workpiece shaking during transportation and increases the stability of the workpiece during transportation. Description of the Drawings

[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 Shows a schematic structural diagram of the first perspective of the base provided by the embodiment of the present utility model;

[0018] Figure 2 Shows Figure 1 The partial structural diagram at position A in;

[0019] Figure 3 Shows a bottom view of the cooperation between the base provided by the embodiment of the present utility model and the workpiece;

[0020] Figure 4 Shows Figure 3 The partial structural diagram at position B in;

[0021] Figure 5 Shows a schematic layout structure diagram of the top view of the base provided by the embodiment of the present utility model;

[0022] Figure 6 Shows an exploded structural diagram of the base provided by the embodiment of the present utility model;

[0023] Figure 7 Shows a schematic structural diagram of the first state of the support member provided by the embodiment of the present utility model;

[0024] Figure 8 Shows a schematic structural diagram of the second state of the support member provided by the embodiment of the present utility model;

[0025] Figure 9 Shows an exploded structural diagram of the support member provided by the embodiment of the present utility model;

[0026] Figure 10 Shows an exploded structural diagram of the box body provided by the embodiment of the present utility model;

[0027] Figure 11 Shows a schematic structural diagram of the first housing of the box body provided by the embodiment of the present utility model.

[0028] Among them, the above-mentioned drawings include the following reference numerals:

[0029] 10, seat body; 101, installation cavity;

[0030] 11, main body part; 1101, guide groove; 111, extension part;

[0031] 12, movable part;

[0032] 20, support member; 201, support end;

[0033] 21, nut seat; 22, adjusting screw; 23, support plate; 24, locking nut; 25, anti-slip pad;

[0034] 30. Stopper component

[0035] 40. Limiting component; 401. Limiting groove; 402. First sliding groove; 403. Second sliding groove

[0036] 41. First component; 42. Second component

[0037] 50. Protective shell; 51. First shell; 511. Positioning block; 5111. Positioning groove; 52. Second shell

[0038] 01. Workpiece; 011. Suspended end

[0039] 02. Support frame Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually illustrative only and in no way constitutes a limitation on the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0041] As Figures 1 to 10 shown, an embodiment of the present invention provides a base, and the base includes a base body 10, a support component 20, a stopper component 30, and a limiting component 40. The base body 10 is used for placing a workpiece 01, and the workpiece 01 has a suspended end 011; the support component 20 is movably arranged on the base body 10, the support component 20 has a support end 201, and the support end 201 and the suspended end 011 are located on the same side of the base body 10. The stopper component 30 is arranged on the base body 10, and the stopper component 30 is used for fixing the relative position of the support component 20 with respect to the base body 10 so that the support end 201 is in the support position. The limiting component 40 is arranged on the base body 10, the support component 20 moves relative to the limiting component 40 between an avoidance position and a support position, and the limiting component 40 is used for limiting cooperation with the support component 20 to prevent the support component 20 from moving relative to the base body 10 in the direction from the base body 10 to the support end 201.

[0042] Applying the technical solution of the present utility model, after placing the workpiece on the base body 10, the workpiece 01 has a suspended end 011. By adjusting the position of the support member 20 relative to the base body 10, the support end 201 of the support member 20 supports the suspended end 011 of the workpiece 01, and the position of the support member 20 is fixed by the stop member 30. In addition, the use of the limit member 40 provides a clear movement range for the support member 20, preventing the support member 20 from moving in an inappropriate direction and making the adjustment process more orderly and controllable. With such a setting, the support member 20 provides an additional support point for the workpiece 01, reducing the possibility of material fatigue, bending or even fracture of the workpiece 01 caused by the suspension of the suspended end 011 of the workpiece 01. Moreover, the above setting reduces the possibility of the workpiece 01 shaking during transportation and increases the stability of the workpiece 01 during transportation.

[0043] Specifically, the support member 20 has an avoidance position and a support position arranged oppositely. When the support member 20 is in the support position, along the direction from the support end 201 to the base body 10, the support end 201 is located on one side of the suspended end 011 and is used to support the suspended end 011. When the support member 20 is in the avoidance position, the projection of the support end 201 on the base body 10 is located outside the projection of the suspended end 011 on the base body 10.

[0044] Among them, the support end 201 of the support member 20 in this solution can be located either above or below the base body 10.

[0045] When the support end 201 is located above the base body 10, in some use scenarios, it can be located below the suspended end 011 and support the suspended end 011 of the workpiece 01; in some use scenarios, it can be located above the suspended end 011 and abut against the end face of the suspended end 011 to assist in positioning the suspended end 011. When the support end 201 is located below the base body 10, the support end 201 is located below the suspended end 011 and supports the suspended end 011 of the workpiece 01.

[0046] Such as Figure 3 and Figure 10As shown in the figure, taking the transportation of an LED display screen through the main body 10 as an example for illustration, when transporting the LED display screen, the LED display screen is usually installed on the support frame 02. The bottom end of the support frame 02 is placed on the main body 10. An elevating part for elevating the support frame 02 is usually installed on the support frame 02. The elevating column of the elevating part is arranged on the support frame 02. The mounting seat of the elevating part is located below the main body and is suspended. The elevating column will be subjected to the pulling force from the mounting seat. The supporting end 201 of the supporting component 20 of this solution is located below the main body 10 and can support the mounting seat of the elevating part. The supporting component 20 provides an additional supporting point for the mounting seat of the elevating part, restricting the bending degree of the elevating column. Moreover, the stability of the elevating part is improved, and the possibility of the elevating part shaking during transportation is reduced.

[0047] As Figure 6 shown, in the embodiment of this solution, the main body 10 includes a main body part 11 and a movable part 12. The supporting component 20 is movably arranged on the main body part 11. The movable part 12 is detachably arranged on the main body part 11. The stop component 30 is arranged on the movable part 12 and is in positioning cooperation with the supporting component 20. With such an arrangement, it is convenient to realize the positioning of the stop component 30 to the supporting component 20.

[0048] Specifically, the main body part 11 includes two extension parts 111. The two extension parts 111 are located on the same side of the length direction of the main body part 11 and are respectively located at the two ends of the length direction of the main body part 11. A notch is formed between the main body part of the main body 11 and the two extension parts 111. The length direction of the movable part 12 is the same as the length direction of the main body part 11. The movable part 12 is arranged at the opening of the notch so that an avoidance groove is formed between the movable part 12 and the main body part 11. This avoidance groove is used for the elevating part to pass through so that the mounting seat of the elevating part is located below the base. Specifically, the distance between the supporting position and the avoidance groove is less than the position between the avoidance position and the avoidance groove.

[0049] Furthermore, a supporting component 20 is arranged on each extension part 111. The stop component 30 is a stop block. There are two stop blocks. The two stop blocks are respectively arranged at the two ends of the length direction of the movable part 12 and are arranged on the side of the movable part 12 close to the main body part 11. The stop block is in stop cooperation with the corresponding supporting component 20.

[0050] As Figure 3 、 Figure 4 and Figure 6As shown, in the embodiment of the present solution, a guiding groove 1101 is provided on the main body portion 11. The extending direction of the guiding groove 1101 is the same as the moving direction of the supporting member 20. The supporting member 20 is movably arranged in the guiding groove 1101. One end of the guiding groove 1101 close to the suspended end 011 cooperates with the stopping member 30 to position the supporting member 20 at the supporting position. Through the cooperation of the guiding groove 1101 and the supporting member 20, the stability of the supporting member 20 during the moving process is ensured. Moreover, with the above arrangement, the structure is simple and the operation is relatively convenient. After adjusting the position of the supporting member 20, by installing the movable portion 12, the installation of the main body portion 11 and the movable portion 12 can be realized, and the positioning of the supporting member 20 can also be realized.

[0051] In the present solution, the avoiding position and the supporting position are two extreme positions of the supporting member 20 along the moving direction. When the supporting member 20 moves to the supporting position, the stopping member 30 is located on the side of the supporting member 20 facing the avoiding position and abuts against the supporting member 20.

[0052] Specifically, the stopping portion is in stopping cooperation with the side of the supporting member 20 away from the suspended end 011.

[0053] As Figure 2 、 Figures 7 to 9 shown, in the embodiment of the present solution, the limiting member 40 is arranged on the side of the seat body 10 away from the suspended end 011. With such an arrangement, the number of components on the side of the seat body 10 close to the supporting end 201 can be reduced, and the design spacing range between the supporting end 201 and the seat body 10 can be increased.

[0054] Specifically, the limiting member 40 is provided with a limiting groove 401 and a first sliding groove 402 that communicate with each other along the direction from the seat body 10 to the supporting end 201. The guiding groove 1101 is located below the first sliding groove 402 and communicates with the first sliding groove 402. The extending directions of the limiting groove 401 and the first sliding groove 402 are the same as the moving direction of the supporting member 20. The supporting end 201 is located outside the first sliding groove 402. A part of the supporting member 20 is movably inserted into the limiting groove 401, and the limiting groove 401 is in limiting cooperation with the part of the supporting member 20 located in the limiting groove 401. The connectivity between the guiding groove 1101 and the first sliding groove 402 provides stable guidance for the supporting member 20 and reduces the structural instability caused by movement.

[0055] Furthermore, the limiting member 40 includes a first member 41 and a second member 42 that are buckled with each other along the direction from the supporting end 201 to the seat body 10. A limiting groove 401 is formed between the first member 41 and the second member 42, and the first sliding groove 402 is arranged on the first member 41. With such an arrangement, it is convenient to realize the assembly of the limiting member 40 and the supporting member 20.

[0056] Specifically, the first component 41 has a plate-like structure, and the second component 42 has a shell-like structure with an opening on one side. After the second component 42 and the first component 41 are buckled with each other, a limiting groove 401 is formed.

[0057] Furthermore, the first component 41 is located below the second component 42, and the first component 41 is arranged on the extending portion 111. A first sliding groove 402 is arranged on the first component 41, and a second sliding groove 403 is arranged on the side of the second component 42 away from the first component 41. The second sliding groove 403 is arranged opposite to the first sliding groove 402 and is communicated with the limiting groove 401. One end of the supporting component 20 away from the supporting end 201 extends out of the outer side of the limiting component 40 through the second sliding groove 403.

[0058] In the embodiment of this solution, the distance between the supporting end 201 and the seat body 10 is adjustable. When transporting the LED display screen, for different display screens, the distance between the end face of the bottom end of the mounting seat of the lifting part supporting it and the end face of the bottom end of the seat body 10 is different. With such a setting, it is allowed that the supporting end 201 adapts to the lifting parts of different LED display screens or other devices, increasing the versatility and applicability of the technical solution. Moreover, by adjusting the distance between the supporting end 201 and the seat body 10, the stability of the supporting structure can be optimized, and the structural instability caused by size mismatch can be reduced.

[0059] Specifically, the supporting component 20 includes a nut seat 21, an adjusting screw rod 22 and a supporting plate 23. Among them, the nut seat 21 is movably arranged on the seat body 10; the adjusting screw rod 22 has an operating end and a connecting end arranged oppositely along the direction from the seat body 10 to the supporting end 201. The adjusting screw rod 22 is arranged through the nut seat 21 and is in threaded cooperation with the nut seat 21; the supporting plate 23 is arranged at the connecting end of the adjusting screw rod 22, and the supporting plate 23 forms the supporting end 201. The threaded cooperation between the adjusting screw rod 22 and the nut seat 21 allows for precise distance adjustment to ensure that the supporting end 201 can adapt to devices of different heights. Moreover, the design of the operating end of the adjusting screw rod 22 is convenient for users to operate, and the position of the supporting end 201 can be easily adjusted by rotating the operating end.

[0060] Specifically, the nut seat 21 includes a first section and a second section connected in sequence along the axial direction. The cross-sectional area of the first section is larger than that of the second section. The first section is movably arranged in the limiting groove 401, and the second section extends upward out of the second component 42 through the second sliding groove 403. The adjusting screw rod 22 penetrates through the nut seat 21, and the bottom end of the adjusting screw rod 22 extends downward into the lower part of the seat body 10 through the guiding groove 1101 and is connected to the supporting plate 23. With such a setting, its structure is simple, and it is ensured that the operating end of the adjusting screw rod 22 is located above the seat body 10, which is convenient for operation.

[0061] Furthermore, the support member 20 further includes a locking nut 24, which is sleeved on the outer periphery of the adjusting screw rod 22 and is disposed near the operating end. The locking nut 24 is threadedly connected to the adjusting screw rod 22 and is used to abut against the nut seat 21. The use of the locking nut 24 prevents the accidental rotation of the adjusting screw rod 22 due to vibration or other external forces, thereby protecting the stability of the support member 20. The locking nut 24 is disposed near the operating end of the adjusting screw rod 22, enabling the user to quickly and conveniently lock it after adjusting the support end 201 to the desired position.

[0062] In an embodiment of this solution, an anti-slip pad 25 is further included, and the anti-slip pad 25 is disposed on the surface of the support plate 23 facing the base body 10. By increasing the friction force, the anti-slip pad 25 effectively prevents the suspended end 011 of the workpiece 01 from sliding on the support plate 23, thereby improving the stability of the overall structure.

[0063] In an embodiment of this solution, the support plate 23 is detachably disposed on the adjusting screw rod 22. The user can replace the support plate 23 with different specifications or types according to different support requirements, increasing the flexibility of the technical solution. If the support plate 23 is damaged or worn, the user only needs to replace the support plate 23 instead of the entire support member 20, thereby reducing the maintenance cost.

[0064] Specifically, a clamping groove is provided at the connection end of the adjusting screw rod 22. The clamping groove is annularly disposed on the side wall of the adjusting screw rod 22 along the circumferential direction of the adjusting screw rod 22. The support plate 23 includes two annular plates, and the two annular plates are buckled with each other at the position of the clamping groove, and the formed integral annular plate-like structure is clamped and matched with the clamping groove. The support plate 23 further includes a fastener, and the extending direction of the fastener is parallel to the support plate 23. Along the distribution direction of the two annular plates, the fastener passes through one of the annular plates and is threadedly connected to the other annular plate.

[0065] As Figure 1 and Figure 2 shown, further, the base is provided with an installation cavity 101, the top of the installation cavity 101 is an open structure, and the support member 20 and the stop member 30 are respectively disposed at the bottom of the base.

[0066] As Figure 10 shown, an embodiment of the present invention further provides a packing box, which includes the above-mentioned base and a protective shell 50. The protective shell 50 is disposed at the opening of the installation cavity 101 of the base, and the protective shell 50 and the base cooperate to form an installation space. The workpiece 01 to be transported is placed in the installation space.

[0067] As Figure 10 and Figure 11As shown, further, the protective case 50 includes a first case 51 and a second case 52 that are snap-fitted to each other. After the first case 51 and the second case 52 are snap-fitted to each other, a shell-like structure with an open bottom is formed. This arrangement can further improve the convenience of assembling this packing box.

[0068] Specifically, the first case 51 and the second case 52 have the same structure. This arrangement can further improve the convenience of processing and assembling the protective case 50.

[0069] Further, a positioning block 511 is provided on the inner top wall of the first case 51, and a positioning groove 5111 is provided on the positioning block 511. The positioning groove 5111 is used to position the workpiece being transported.

[0070] In this solution, the shape and the setting position of the positioning groove 5111 are not limited. The positioning groove 5111 can be provided on at least one of the side wall or the bottom wall of the positioning block 511, and the shape of the positioning groove 5111 can be determined according to the shape of the workpiece.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0072] Unless otherwise specifically stated, the relative arrangements of the components and steps set forth in these embodiments, numerical expressions, and values do not limit the scope of the present invention. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0073] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0074] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used here should be made.

[0075] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without separate statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0076] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A base, characterized in that, The base includes: A base body (10) for placing a workpiece (01), and the workpiece (01) has a suspended end (011); A support member (20) movably arranged on the base body (10), the support member (20) has a support end (201), and the support end (201) and the suspended end (011) are located on the same side of the base body (10); A stop member (30) arranged on the base body (10), and the stop member (30) is used to fix the position of the support member (20) relative to the base body (10) in the moving direction; A limit member (40) arranged on the base body (10), and the limit member (40) is used for limit cooperation with the support member (20) to prevent the support member (20) from relatively moving relative to the base body (10) in the direction from the base body (10) to the support end (201).

2. The base according to claim 1, wherein The base body (10) includes a main body portion (11) and a movable portion (12), the support member (20) is movably arranged on the main body portion (11), the movable portion (12) is detachably arranged on the main body portion (11), the stop member (30) is arranged on the movable portion (12) and is in positioning cooperation with the support member (20).

3. The base according to claim 2, characterized in that, A guide groove (1101) is arranged on the main body portion (11), the extending direction of the guide groove (1101) is the same as the moving direction of the support member (20), the support member (20) is movably arranged in the guide groove (1101), and one end of the guide groove (1101) close to the suspended end (011) cooperates with the stop member (30) to realize the positioning of the support member (20) at the support position.

4. The base according to claim 1, characterized in that The limit member (40) is provided with a limit groove (401) and a first sliding groove (402) that communicate with each other in the direction from the base body (10) to the support end (201), the extending directions of the limit groove (401) and the first sliding groove (402) are respectively the same as the moving direction of the support member (20), the support end (201) is located outside the first sliding groove (402), a part of the support member (20) is movably inserted into the limit groove (401), and the limit groove (401) is in limit cooperation with the part of the support member (20) located in the limit groove (401).

5. The base according to claim 4, characterized in that, The limit member (40) includes a first member (41) and a second member (42) that are buckled with each other in the direction from the support end (201) to the base body (10), a limit groove (401) is formed between the first member (41) and the second member (42), and the first sliding groove (402) is arranged on the first member (41).

6. The base according to claim 1, characterized in that, The distance between the support end (201) and the base body (10) is adjustable.

7. The base according to claim 6, characterized in that, The support member (20) includes: A nut seat (21) movably arranged on the base body (10); The adjusting screw rod (22) has an operating end and a connecting end oppositely arranged along the direction from the seat body (10) to the supporting end (201). The adjusting screw rod (22) is inserted into the nut seat (21) and is in threaded fit with the nut seat (21). The supporting plate (23) is arranged at the connecting end of the adjusting screw rod (22), and the supporting plate (23) forms the supporting end (201).

8. The base according to claim 7, characterized in that, The supporting member (20) further includes: The locking nut (24) is sleeved on the outer periphery of the adjusting screw rod (22) and is arranged close to the operating end. The locking nut (24) is in threaded connection with the adjusting screw rod (22) and is used for abutting against the nut seat (21).

9. The base according to any one of claims 1 to 8, characterized in that The base is provided with an installation cavity (101). The top of the installation cavity (101) is an open structure. The supporting member (20) and the stopping member (30) are respectively arranged at the bottom of the base.

10. A packing box, characterized in that, including: The base according to any one of claims 1 to 9; The protective shell (50) is arranged at the opening of the installation cavity (101) of the base. The protective shell (50) and the base cooperate to form an installation space.

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