Turnover device

Abstract

The utility model provides a turnover device, which is used for turning over an object to be tested, and comprises a base body frame provided with an avoiding space capable of avoiding the object to be tested; the bearing part can be connected with an object to be tested; the overturning part comprises a mounting seat and a rotating shaft, the mounting seat is arranged on the base body frame, the rotating shaft is rotatably arranged in the mounting seat, the first end of the rotating shaft is connected to the bearing part, and when the rotating shaft rotates, at least part of the to-be-tested object can be located in the avoiding space; and the locking structure can be matched with the bearing part to limit the relative position of the bearing part and the base body frame. According to the technical scheme, the problem that in the related technology, it is difficult for workers to turn over the LED box can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED device assembly and testing, and more specifically, to a flipping device. Background Art

[0002] With the continuous development of technology, various LED display devices have emerged in people's daily lives to meet different viewing needs. Among them, an LED display device is usually formed by splicing multiple LED boxes to form a larger display surface. An LED box includes a frame, an LED display module arranged on the front side of the frame, a cover plate arranged on the rear side of the frame, and various electronic components arranged between the cover plate and the LED display module.

[0003] To ensure that each LED box can achieve normal display functions, before the LED box leaves the factory or during regular maintenance of the LED, workers usually need to maintain the LED box from the front side or the rear side of the frame, which is usually called front maintenance or rear maintenance. When front maintenance is required, the front side of the frame needs to be placed upward, and when rear maintenance is required, the rear side of the frame needs to be placed upward. In addition, when it is necessary to debug the LED box, the LED box also needs to be placed upright, so that workers need to flip the LED box. In the related art, workers can only use both hands to flip the LED box, and the LED box is relatively heavy, so it is difficult for workers to flip the LED box. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a flipping device to solve the problem that it is difficult for workers in the related art to flip the LED box.

[0005] To achieve the above purpose, the utility model provides a flipping device for flipping an object to be tested. The flipping device includes: a base frame having an avoidance space capable of avoiding the object to be tested; a bearing part capable of connecting with the object to be tested; a flipping part including a mounting seat and a rotating shaft. The mounting seat is arranged on the base frame, the rotating shaft is rotatably arranged in the mounting seat, the first end of the rotating shaft is connected to the bearing part, and when the rotating shaft rotates, at least part of the object to be tested can be located in the avoidance space; a locking structure capable of cooperating with the bearing part to limit the relative position between the bearing part and the base frame.

[0006] Further, the first end of the rotating shaft is connected to the middle of the bearing part.

[0007] Further, the mounting seat includes an upper seat body, a lower seat body, and an oil-free bushing arranged between the upper seat body and the lower seat body, and the rotating shaft is arranged in the oil-free bushing.

[0008] Further, the lower seat body further includes a seat body, a first stop portion, and a second stop portion. The first stop portion and the second stop portion are spaced apart along the axial direction of the rotation axis on the seat body, and both the first stop portion and the second stop portion can be in stop cooperation with both ends of the oil-free bushing.

[0009] Further, the rotation axis includes a first shaft section and a second shaft section. The cross-sectional area of the first shaft section is larger than that of the second shaft section. The first shaft section is arranged farther from the bearing portion than the second shaft section. The second shaft section is arranged inside the oil-free bushing. A first stepped surface is formed between the first shaft section and the second shaft section. One side of the oil-free bushing away from the bearing portion abuts against the first stepped surface.

[0010] Further, the rotation axis further includes a third shaft section. The cross-sectional area of the third shaft section is smaller than that of the second shaft section. The second shaft section is located between the first shaft section and the third shaft section. A second stepped surface is formed between the third shaft section and the second shaft section. The bearing portion has a mounting through hole. The third shaft section is inserted into the mounting through hole. The second stepped surface abuts against the bearing portion. One side of the oil-free bushing close to the bearing portion abuts against the bearing portion.

[0011] Further, the flipping device further includes an operating rod, and the operating rod is connected to the second end of the rotation axis; and / or, the lower seat body further includes a mounting flange connected to the seat body, and the flipping device further includes a fastener passing through the mounting flange and the base frame to connect the lower seat body to the base frame.

[0012] Further, the locking structure includes a bolt. A jack is provided on the bearing portion. Among them, the flipping device further includes a bolt seat provided on the base frame. The bolt can pass through the bolt seat and the jack and can be in limit cooperation with the bearing portion; and / or, the base frame includes a cross frame and a vertical frame connected below the cross frame. The cross frame is located outside the bearing portion. A positioning hole is provided on the vertical frame. The bolt can pass through the positioning hole and the jack and can be in limit cooperation with the bearing portion.

[0013] Further, the bolt includes a bolt rod, an elastic member, and a bump. The bump is movably arranged in the bolt rod along the radial direction of the bolt rod and can partially protrude from the outer surface of the bolt rod. The elastic member is arranged in the bolt rod and can apply a force outward along the radial direction of the bolt rod to the bump. The bump can be in stop cooperation with the bearing portion.

[0014] Further, the flipping device further includes a universal wheel and a support leg provided below the base frame. The support leg is telescopically arranged so that the lower surface of the support leg can be located below the universal wheel.

[0015] Applying the technical solution of the present utility model, the base frame provides an installation basis for each component of the flipping device. The avoidance space can avoid the object to be tested; the bearing part can be connected to the object to be tested to carry the object to be tested; the flipping part includes a mounting seat and a rotating shaft. The mounting seat is arranged on the base frame, and the rotating shaft is rotatably arranged in the mounting seat. The first end of the rotating shaft is connected to the bearing part. Rotating the rotating shaft can drive the bearing part to rotate, thereby driving the object to be tested to rotate, so that different faces of the object to be tested are arranged towards the preset direction. Furthermore, the staff can set the object to be tested towards the preset direction according to their own needs; when the rotating shaft rotates, at least part of the object to be tested can be located in the avoidance space, so that the overall size of the object to be tested and the base frame can be reduced, thereby saving space; the locking structure can cooperate with the bearing part to limit the relative position between the bearing part and the base frame, so that the staff can conveniently perform maintenance and detection operations on the object to be tested when the posture of the object to be tested relative to the base frame is relatively fixed. Therefore, the technical solution of this application can effectively solve the problem that it is difficult for the staff to flip the LED box body in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 The three-dimensional structure schematic diagram of the embodiment of the flipping device according to the present utility model is shown;

[0018] Figure 2 Shows Figure 1 The split structure schematic diagram of the flipping part of the flipping device.

[0019] Figure 3 Shows Figure 1 The cross-sectional schematic diagram of the base frame, bearing part and flipping part of the flipping device.

[0020] Figure 4 Shows Figure 1 The cross-sectional schematic diagram of the base frame, bearing part and locking structure of the flipping device.

[0021] Figure 5 Shows Figure 4 The cross-sectional schematic diagram of the bolt of the locking structure of the flipping device.

[0022] Figure 6 Shows Figure 1 The front view schematic diagram of the universal wheel and the support leg of the flipping device.

[0023] Among them, the above-mentioned attached drawings include the following reference numerals:

[0024] 1. Object to be tested

[0025] 10. Base frame; 11. Avoidance space; 12. Horizontal frame; 13. Vertical frame; 131. Positioning hole

[0026] 20. Bearing part; 21. Jack

[0027] 30. Flipping part; 31. Mounting seat; 311. Upper seat body; 312. Lower seat body; 3121. Seat body; 3122. First stop part; 3123. Second stop part; 3124. Mounting flange; 313. Oil-free bushing; 32. Rotating shaft; 321. First shaft section; 322. Second shaft section; 323. First step surface; 324. Third shaft section; 325. Second step surface

[0028] 40. Locking structure; 41. Bolt; 411. Bolt rod; 412. Elastic member; 413. Protrusion

[0029] 50. Operating rod

[0030] 60. Fastener

[0031] 70. Universal wheel

[0032] 80. Support leg

[0033] 90. Bolt seat Detailed implementation manners

[0034] 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 of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits 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.

[0035] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the sake of convenience in 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 said 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 denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not require further discussion in subsequent drawings.

[0037] As Figures 1 to 3 shown, the present application provides a flipping device for flipping the object 1 to be tested. The embodiments of the flipping device of the present application include: a base frame 10, a bearing part 20, a flipping part 30, and a locking structure 40; the base frame 10 has an avoidance space 11 capable of avoiding the object 1 to be tested; the bearing part 20 can be connected to the object 1 to be tested; the flipping part 30 includes a mounting seat 31 and a rotating shaft 32. The mounting seat 31 is arranged on the base frame 10, and the rotating shaft 32 is rotatably arranged in the mounting seat 31. The first end of the rotating shaft 32 is connected to the bearing part 20. When the rotating shaft 32 rotates, at least part of the object 1 to be tested can be located in the avoidance space 11; the locking structure 40 can cooperate with the bearing part 20 to limit the relative position between the bearing part 20 and the base frame 10.

[0038] Applying the technical solution of this embodiment, the base frame 10 provides an installation basis for each component of the flipping device. The avoidance space 11 can avoid the object to be tested 1. The bearing part 20 can be connected to the object to be tested 1 to bear the object to be tested 1. The flipping part 30 includes a mounting seat 31 and a rotating shaft 32. The mounting seat 31 is arranged on the base frame 10, and the rotating shaft 32 is rotatably arranged in the mounting seat 31. The first end of the rotating shaft 32 is connected to the bearing part 20. Rotating the rotating shaft 32 can drive the bearing part 20 to rotate, thereby driving the object to be tested 1 to rotate, so that different faces of the object to be tested 1 are arranged towards the preset direction. Furthermore, the staff can set the object to be tested 1 towards the preset direction according to their own needs. When the rotating shaft 32 rotates, at least part of the object to be tested 1 can be located in the avoidance space 11, so that the overall size of the object to be tested 1 and the base frame 10 can be reduced, thus saving space. The locking structure 40 can cooperate with the bearing part 20 to limit the relative position between the bearing part 20 and the base frame 10, so that the staff can conveniently perform maintenance and detection operations on the object to be tested 1 when the posture of the object to be tested 1 relative to the base frame 10 is relatively fixed. Therefore, the technical solution of this embodiment can effectively solve the problem that it is difficult for the staff to flip the LED box body in the related art.

[0039] It should be noted that in this field, the object to be tested 1 is an LED box body. The flipping device of this embodiment is used to flip the LED box body. When the staff performs maintenance and detection on the LED box body, the LED box body needs to be in three postures, which are: the first posture is the posture where the front side of the LED box body is placed upwards, the second posture is the posture where the rear side of the LED box body is placed upwards, and the third posture is the posture where the LED box body is placed vertically (that is, both the front side and the rear side of the LED box body are located in the vertical plane). When the LED box body is in the third posture, part of the structure of the LED box body is located in the avoidance space 11. The flipping device of this embodiment can facilitate the staff to quickly perform the flipping operation of the large-size LED box body during the assembly and debugging process of the large-size LED box body, saving time and operation steps and improving work efficiency.

[0040] As Figure 1 shown, the first end of the rotating shaft 32 is connected to the middle of the bearing part 20. Specifically, "the first end of the rotating shaft 32 is connected to the middle of the bearing part 20" means that the rotating shaft 32 is connected to the axis of symmetry of the bearing part 20 or the distance between the rotating shaft 32 and the axis of symmetry of the bearing part 20 is less than the distance between the rotating shaft 32 and the edge of the bearing part 20. With such a setting, when the LED box body is in the third posture, the LED box body can be located in the avoidance space 11 as much as possible, so that the overall size of the object to be tested 1 and the base frame 10 is reduced and space is saved.

[0041] As Figures 1 to 3As shown, the mounting base 31 includes an upper seat body 311, a lower seat body 312, and an oil-free bushing 313 disposed between the upper seat body 311 and the lower seat body 312. The rotating shaft 32 is disposed within the oil-free bushing 313. Since the oil-free bushing 313 does not require regular lubrication, the maintenance work and related maintenance costs of the staff are reduced; due to the reduction of wear caused by improper lubrication, the oil-free bushing 313 has a long service life; the oil-free bushing 313 has a low friction coefficient, so that the friction and wear of the oil-free bushing 313 during use are small; the oil-free bushing 313 also has a wide temperature adaptability and chemical stability. Since in this field, the object to be tested 1 is an LED box body, the weight of the LED box body does not belong to an extreme weight, and the flipping of the LED box body does not require an extremely high speed. Therefore, the oil-free bushing 313 is sufficient to enable the rotating shaft 32 to rotate.

[0042] As Figures 1 to 3 shown, the lower seat body 312 further includes a seat body 3121, a first stop portion 3122, and a second stop portion 3123. The first stop portion 3122 and the second stop portion 3123 are spaced apart along the axial direction of the rotating shaft 32 on the seat body 3121. Both the first stop portion 3122 and the second stop portion 3123 can be in stop cooperation with both ends of the oil-free bushing 313. Specifically, the first stop portion 3122, the second stop portion 3123, and the upper surface of the seat body 3121 enclose to form a mounting groove, and the oil-free bushing 313 is installed in the mounting groove, thereby limiting the oil-free bushing 313. Both ends of the oil-free bushing 313 are in stop cooperation with the first stop portion 3122 and the second stop portion 3123 to prevent the oil-free bushing 313 from moving axially along the rotating shaft 32 during use, so that the object to be tested 1 can be stably flipped.

[0043] As Figure 2 and Figure 3As shown, the rotating shaft 32 includes a first shaft section 321 and a second shaft section 322. The cross-sectional area of the first shaft section 321 is larger than that of the second shaft section 322. The first shaft section 321 is arranged farther from the bearing part 20 than the second shaft section 322. The second shaft section 322 is arranged inside the oil-free bushing 313. A first step surface 323 is formed between the first shaft section 321 and the second shaft section 322. The side of the oil-free bushing 313 away from the bearing part 20 abuts and cooperates with the first step surface 323. The rotating shaft 32 further includes a third shaft section 324. The cross-sectional area of the third shaft section 324 is smaller than that of the second shaft section 322. The second shaft section 322 is located between the first shaft section 321 and the third shaft section 324. A second step surface 325 is formed between the third shaft section 324 and the second shaft section 322. The bearing part 20 has a mounting through hole. The third shaft section 324 is inserted into the mounting through hole. The second step surface 325 abuts and cooperates with the bearing part 20. The side of the oil-free bushing 313 close to the bearing part 20 abuts and cooperates with the bearing part 20. Specifically, the second shaft section 322 is arranged inside the oil-free bushing 313. The first step surface 323 can abut and cooperate with the side of the oil-free bushing 313 away from the bearing part 20. The second step surface 325 abuts and cooperates with the bearing part 20. That is to say, the oil-free bushing 313 is clamped between the first shaft section 321 and the bearing part 20. Thus, when the rotating shaft 32 is inserted into the oil-free bushing 313 and rotates, the rotating shaft 32 will not move axially along the rotating shaft 32, so that the object to be tested 1 can be stably flipped.

[0044] As Figure 1 shown, the flipping device further includes an operating rod 50. The operating rod 50 is connected to the second end of the rotating shaft 32. Specifically, the setting of the operating rod 50 facilitates the staff to flip the object to be tested 1.

[0045] As Figure 2 and Figure 3 shown, the lower seat body 312 further includes a mounting flange 3124 connected to the seat body 3121. The flipping device further includes a fastener 60 passing through the mounting flange 3124 and the base frame 10 to connect the lower seat body 312 to the base frame 10. Specifically, the setting of the mounting flange 3124 can stably connect the lower seat body 312 and the base frame 10, so as to ensure that the object to be tested 1 can be stably flipped. The fastener 60 is a bolt. In addition, the lower seat body 312 and the upper seat body 311 are also connected by bolts.

[0046] As Figure 1 Figure 4 and Figure 5As shown, the locking structure 40 includes a bolt 41, and a jack 21 is provided on the bearing part 20. Among them, the flipping device further includes a bolt seat 90 provided on the base frame 10. The bolt 41 can pass through the bolt seat 90 and the jack 21 and can be in limit cooperation with the bearing part 20. With such a setting, the LED box body can be stably in the first posture and the second posture to meet the maintenance and detection needs of the staff.

[0047] As Figure 1 Figure 4 and Figure 5 As shown, the base frame 10 includes a cross frame 12 and a vertical frame 13 connected below the cross frame 12. The cross frame 12 is located outside the bearing part 20. A positioning hole 131 is provided on the vertical frame 13. The bolt 41 can pass through the positioning hole 131 and the jack 21 and can be in limit cooperation with the bearing part 20. With such a setting, the LED box body can be stably in the third posture to meet the maintenance and detection needs of the staff.

[0048] As Figure 1 Figure 4 and Figure 5 As shown, the bolt 41 includes a bolt rod 411, an elastic member 412 and a bump 413. The bump 413 is movably arranged in the bolt rod 411 along the radial direction of the bolt rod 411 and can partially protrude from the outer surface of the bolt rod 411. The elastic member 412 is arranged in the bolt rod 411 and can apply a force outward along the radial direction of the bolt rod 411 to the bump 413. The bump 413 can be in stop cooperation with the bearing part 20. Specifically, when using the bolt 41, when the bolt rod 411 is inserted into the bolt seat 90 and the jack 21 or inserted into the positioning hole 131 and the jack 21 from the outside to the inside, the bump 413 can retract into the bolt rod 411, so as to cross the bolt seat 90 and the jack 21 or cross the positioning hole 131 and the jack 21. When the bump 413 crosses the jack 21, the bump 413 partially protrudes from the outer surface of the bolt rod 411 under the action of the elastic member 412, so as to be in stop cooperation with the bearing part 20, and further achieve the effect that the bolt 41 does not come off; if you want to pull out the bolt 41, you only need to pull it out slightly with a little force.

[0049] As Figure 1 and Figure 6As shown, the flipping device further includes a universal wheel 70 and a support leg 80 disposed below the base frame 10. The support leg 80 is telescopically arranged such that the lower surface of the support leg 80 can be located below the universal wheel 70. Specifically, the support leg 80 may be composed of two nested rods, thereby realizing the telescopic function of the support leg 80. When the flipping device needs to be transported, the lower surface of the support leg 80 is positioned above the universal wheel 70, enabling the staff to use the universal wheel 70 for easy transportation of the flipping device. When the flipping device is transported to the destination, the lower surface of the support leg 80 is located below the universal wheel 70 to lift the universal wheel 70 off the ground, thus facilitating the positioning and fixing of the flipping device.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, 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 invention 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 invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0051] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation other than the orientation described in the figure 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 be positioned "below other devices or structures" or "under other devices or structures" afterwards. 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 will be made.

[0052] In addition, it should be noted that using words such as "first", "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional declaration, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0053] The above are only the preferred embodiments of the present utility model and are not intended 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 flipping device for flipping an object to be tested (1), characterized in that, The flipping device includes: A base frame (10) having an avoidance space (11) capable of avoiding the object to be tested (1); A carrying part (20) capable of connecting with the object to be tested (1); A flipping part (30) including a mounting seat (31) and a rotating shaft (32). The mounting seat (31) is arranged on the base frame (10), the rotating shaft (32) is rotatably arranged in the mounting seat (31), a first end of the rotating shaft (32) is connected to the carrying part (20), and when the rotating shaft (32) rotates, at least part of the object to be tested (1) can be located in the avoidance space (11); A locking structure (40) capable of cooperating with the carrying part (20) to limit the relative position between the carrying part (20) and the base frame (10).

2. The flipping device according to claim 1, characterized in that, The first end of the rotating shaft (32) is connected to the middle of the carrying part (20).

3. The flipping device according to claim 1, characterized in that, The mounting seat (31) includes an upper seat body (311), a lower seat body (312), and an oil-free bushing (313) arranged between the upper seat body (311) and the lower seat body (312). The rotating shaft (32) is arranged in the oil-free bushing (313).

4. The turnover device according to claim 3, characterized in that, The lower seat body (312) further includes a seat body (3121), a first stop portion (3122), and a second stop portion (3123). The first stop portion (3122) and the second stop portion (3123) are arranged on the seat body (3121) at intervals along the axial direction of the rotating shaft (32), and both the first stop portion (3122) and the second stop portion (3123) can be in stop cooperation with both ends of the oil-free bushing (313).

5. The turnover device according to claim 4, characterized in that, The rotating shaft (32) includes a first shaft section (321) and a second shaft section (322). The cross-sectional area of the first shaft section (321) is larger than that of the second shaft section (322). The first shaft section (321) is arranged away from the carrying part (20) relative to the second shaft section (322). The second shaft section (322) is arranged in the oil-free bushing (313). A first step surface (323) is formed between the first shaft section (321) and the second shaft section (322). One side of the oil-free bushing (313) away from the carrying part (20) is in abutting cooperation with the first step surface (323).

6. The turnover device according to claim 5, characterized in that, The rotating shaft (32) further includes a third shaft section (324). The cross-sectional area of the third shaft section (324) is smaller than that of the second shaft section (322). The second shaft section (322) is located between the first shaft section (321) and the third shaft section (324). A second step surface (325) is formed between the third shaft section (324) and the second shaft section (322). The carrying part (20) has a mounting through hole. The third shaft section (324) is inserted into the mounting through hole. The second step surface (325) is in abutting cooperation with the carrying part (20). One side of the oil-free bushing (313) close to the carrying part (20) is in abutting cooperation with the carrying part (20).

7. The flipping device according to claim 4, wherein, the flipping device further includes an operating rod (50), and the operating rod (50) is connected to the second end of the rotating shaft (32); and / or, the lower seat body (312) further includes a mounting flange (3124) connected to the seat body (3121), and the flipping device further includes a fastener (60) passing through the mounting flange (3124) and the base frame (10) to connect the lower seat body (312) to the base frame (10).

8. The turnover device according to any one of claims 1 to 7, characterized in that, The locking structure (40) includes a latch (41), and a jack (21) is provided on the bearing part (20), wherein, the flipping device further includes a latch seat (90) provided on the base frame (10), and the latch (41) can pass through the latch seat (90) and the jack (21) and can be in limit fit with the bearing part (20); and / or, the base frame (10) includes a cross frame (12) and a vertical frame (13) connected below the cross frame (12), the cross frame (12) is located outside the bearing part (20), a positioning hole (131) is provided on the vertical frame (13), and the latch (41) can pass through the positioning hole (131) and the jack (21) and can be in limit fit with the bearing part (20).

9. The turnover device according to claim 8, characterized in that, The latch (41) includes a latch rod (411), an elastic member (412) and a bump (413), the bump (413) is movably arranged in the latch rod (411) along the radial direction of the latch rod (411) and can partially protrude from the outer surface of the latch rod (411), the elastic member (412) is arranged in the latch rod (411) and can apply a radially outward force to the bump (413), and the bump (413) can be in stop fit with the bearing part (20).

10. The turnover device according to any one of claims 1 to 7, characterized in that, The flipping device further includes a universal wheel (70) and a support leg (80) provided below the base frame (10), and the support leg (80) is telescopically arranged so that the lower surface of the support leg (80) can be located below the universal wheel (70).

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