Angle-adjustable supporting frame

Abstract

The utility model provides a support frame with an adjustable angle. The angle-adjustable supporting frame comprises a first frame, one end of the first frame is provided with a first positioning structure, the first positioning structure is used for positioning a reinforcing mesh, and the other end of the first frame is provided with a second positioning structure; a third positioning structure is arranged on the second frame, the second frame is pivotally connected with the end, provided with the first positioning structure, of the first frame, and the end, away from the first frame, of the second frame can rotate in the direction close to or away from the second positioning structure; and the supporting assembly is rotatably arranged at the end, away from the first frame, of the second frame, and the supporting assembly abuts against different positions of the second positioning structure so as to change the included angle between the first frame and the second frame. The utility model solves the problem that the construction bracket in the prior art cannot meet the construction requirements of the reinforcing mesh at different angles.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and in particular to a support frame with adjustable angle. Background Art

[0002] Water conservancy projects play an important role in the development of social production. In order to ensure the construction effect and service life of water conservancy projects, reinforced concrete is now mostly used to complete the construction of water conservancy projects. Water conservancy projects have diverse structures, some of which have certain inclination angles and angles. During construction, the steel bars need to be adjusted to the required angles before construction can be carried out. At present, the method mostly adopts welding multiple steels into steel frames according to the predetermined structure. This technology includes two parts: internal brackets and external brackets. The internal bracket is mainly used to position the inclined steel mesh. When the inclined steel mesh is long, in order to avoid the steel bars from sagging and other deformations under the action of gravity, multiple internal brackets need to be set to jointly support the inclined steel mesh. The external bracket is mainly used to position the vertical steel mesh to prevent it from displacement or deformation during construction. At the same time, the external bracket can also improve construction efficiency and reduce the complexity of manual operation. However, the method of using internal and external brackets to coordinate positioning requires the cooperation of multiple workers to complete the construction, which takes up a lot of manpower and time. In order to prevent the inclined steel mesh from sagging, multiple internal brackets need to be set up, which reduces the construction efficiency. The overall weight of the internal and external brackets is large and inconvenient to move, and it can only be used for inclined steel mesh at one angle. When the construction angle of the inclined steel bars at a new construction position changes, new brackets need to be prepared, which increases the construction cost.

[0003] As can be seen from the above, there is a problem in the prior art that the construction support cannot meet the requirements of steel mesh construction at different angles. Utility Model Content

[0004] The main purpose of the utility model is to provide a support frame with adjustable angle to solve the problem that the construction support in the prior art cannot meet the construction requirements of the steel mesh at different angles.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an adjustable angle support frame, including: a first frame, a first positioning structure is provided at one end of the first frame, the first positioning structure is used to position the steel mesh, and a second positioning structure is provided at the other end of the first frame; a second frame, a third positioning structure is provided on the second frame, the second frame is pivotally connected to the end of the first frame having the first positioning structure, and the end of the second frame away from the first frame can be rotated in a direction close to or away from the second positioning structure; a support assembly, the support assembly is rotatably provided at the end of the second frame away from the first frame, and the support assembly abuts against different positions of the second positioning structure to change the angle between the first frame and the second frame.

[0006] Further, the first frame includes: at least one first transverse positioning beam, the first positioning structure is arranged on the first transverse positioning beam, and the second frame is pivotally connected to the first transverse positioning beam; at least two vertical support beams, at least one vertical support beam is respectively arranged at both ends of the first transverse positioning beam; at least two bottom support beams, at least one bottom support beam is respectively arranged at one end of each vertical support beam away from the first transverse positioning beam, the second positioning structure is arranged on the bottom support beam, and the axial direction of the first transverse positioning beam, the axial direction of the vertical support beam, and the axial direction of the bottom support beam are perpendicular to each other.

[0007] Furthermore, there are multiple first transverse positioning beams, and the multiple first transverse positioning beams are arranged at intervals along the axial direction of the vertical support beam, and the second frame is pivotally connected to the topmost first transverse positioning beam among the multiple first transverse positioning beams.

[0008] Furthermore, the first positioning structure includes a plurality of positioning teeth, and at least one first transverse positioning beam is provided with a plurality of positioning teeth, and the plurality of positioning teeth are arranged at intervals along the axial direction of the first transverse positioning beam and extend in a direction away from the bottom support beam and the vertical support beam.

[0009] Furthermore, the second positioning structure includes a plurality of support positioning plates, each bottom support beam is respectively provided with a plurality of support positioning plates, the plurality of support positioning plates are arranged at intervals along the axial direction of the bottom support beam, and the support positioning plates extend toward the second frame.

[0010] Furthermore, the support assembly includes at least two support positioning beams, the number of the support positioning beams is the same as that of the bottom support beams and they correspond one to one, one end of the support positioning beam is connected to the second frame, and the other end of the support positioning beam is abutted against any one of the multiple support positioning plates on the corresponding bottom support beam.

[0011] Furthermore, the number of the support positioning plates on the two bottom support beams is the same and corresponds one to one, and the connecting line of the two corresponding support positioning plates is parallel to the first transverse positioning beam.

[0012] Furthermore, the second frame includes: at least one oblique support beam, the third positioning structure is arranged on the oblique support beam, and the oblique support beam is pivotally connected to the first frame; a second transverse positioning beam, the second transverse positioning beam is connected to one end of all the oblique support beams away from the first frame, the axial direction of the second transverse positioning beam is perpendicular to the axial direction of the oblique support beam, and the support assembly is arranged on the second transverse positioning beam.

[0013] Furthermore, the angle-adjustable support frame also includes: a first pivot member, there are at least two first pivot members, the first pivot members are arranged at one end of the inclined lane support beam, and are mounted on the first frame for connecting the first frame; a second pivot member, there are at least two second pivot members, the second pivot members are arranged on the support assembly, and are mounted on the second transverse positioning beam for connecting the second transverse positioning beam.

[0014] Furthermore, the angle-adjustable support frame also includes an axle assembly, which is connected to the first frame and is used to strengthen the first frame.

[0015] The technical solution of the utility model is applied, and the angle-adjustable support frame includes a first frame, a second frame and a support assembly, a first positioning structure is arranged at one end of the first frame, and the first positioning structure is used to position the steel mesh, a second positioning structure is arranged at the other end of the first frame, and a third positioning structure is arranged on the second frame, the second frame is pivotally connected to an end of the first frame having the first positioning structure, and an end of the second frame away from the first frame can be rotated in a direction close to or away from the second positioning structure, the support assembly is rotatably arranged at an end of the second frame away from the first frame, and the support assembly abuts against different positions of the second positioning structure to change the clamping force between the first frame and the second frame. The vertical steel mesh and the oblique steel mesh are positioned respectively by the first positioning structure and the third positioning structure. At the same time, the second frame and the first frame are rotatably connected. After completing the support positioning construction between the oblique steel mesh and the vertical steel mesh at a construction position, the support frame is moved to the next construction position, the angle between the second frame and the first frame is adjusted, and the support assembly is abutted against different positions of the second positioning structure by adjusting the angle between the support assembly and the second frame, so that the support frame can adapt to the different angles between multiple groups of oblique steel meshes and vertical steel meshes, solving the problem that the construction support in the prior art cannot meet the steel mesh construction requirements at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 A schematic diagram showing the structure of an angle-adjustable support frame in a specific embodiment of the utility model; and

[0018] Figure 2 A schematic diagram showing the structure of a steel mesh in a specific embodiment of the utility model is shown;

[0019] Figure 3A schematic diagram showing the structure of the support frame and the steel mesh in a specific embodiment of the utility model;

[0020] Figure 4 A schematic structural diagram showing an angle of a first frame positioning a vertical steel mesh in a specific embodiment of the utility model;

[0021] Figure 5 A schematic structural diagram showing another angle of the first frame positioning the vertical steel mesh in a specific embodiment of the utility model;

[0022] Figure 6 A schematic diagram of the structure of a support and positioning beam in a specific embodiment of the utility model is shown;

[0023] Figure 7 A structural schematic diagram showing a support assembly abutting against a second positioning structure in a specific embodiment of the utility model is shown.

[0024] The above drawings include the following reference numerals:

[0025] 10. First frame; 11. First positioning structure; 111. Positioning teeth; 12. Second positioning structure; 121. Support positioning plate; 13. First transverse positioning beam; 14. Vertical support beam; 15. Bottom support beam; 20. Second frame; 21. Third positioning structure; 22. Oblique support beam; 23. Second transverse positioning beam; 30. Support assembly; 31. Support positioning beam; 40. First pivot member; 50. Second pivot member; 60. Wheel axle assembly; 61. Connecting shaft; 62. Roller; 70. Oblique steel mesh; 80. Vertical steel mesh. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0029] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] In order to solve the problem in the prior art that the construction support cannot meet the requirements of steel mesh construction at different angles, the utility model provides a support frame with adjustable angle.

[0031] like Figure 1 as well as Figures 3 to 7 As shown, the angle-adjustable support frame includes a first frame 10, a second frame 20 and a support assembly 30. A first positioning structure 11 is provided at one end of the first frame 10, and the first positioning structure 11 is used to position the steel mesh. A second positioning structure 12 is provided at the other end of the first frame 10. A third positioning structure 21 is provided on the second frame 20, and the second frame 20 is pivotally connected to the end of the first frame 10 having the first positioning structure 11, and the end of the second frame 20 away from the first frame 10 can rotate in a direction close to or away from the second positioning structure 12. The support assembly 30 is rotatably provided at the end of the second frame 20 away from the first frame 10, and the support assembly 30 abuts against different positions of the second positioning structure 12 to change the angle between the first frame 10 and the second frame 20.

[0032] The vertical steel mesh 80 and the oblique steel mesh 70 are positioned respectively by the first positioning structure 11 and the third positioning structure 21. At the same time, the second frame 20 and the first frame 10 are rotatably connected. After completing the support positioning construction between the oblique steel mesh 70 and the vertical steel mesh 80 at a construction position, the support frame is moved to the next construction position, the angle between the second frame 20 and the first frame 10 is adjusted, and the support assembly 30 and the second positioning structure 12 are abutted at different positions by adjusting the angle between the support assembly 30 and the second frame 20, so that the support frame can adapt to the different angles between multiple groups of oblique steel meshes 70 and vertical steel meshes 80, and finally meet the steel mesh construction requirements at different angles.

[0033] like Figure 1 , Figure 4 and Figure 7As shown, the first frame 10 includes at least one first transverse positioning beam 13, at least two vertical support beams 14 and at least two bottom support beams 15. The first positioning structure 11 is arranged on the first transverse positioning beam 13, and the second frame 20 is pivotally connected to the first transverse positioning beam 13. At least one vertical support beam 14 is respectively arranged at both ends of the first transverse positioning beam 13. At least one bottom support beam 15 is respectively arranged at one end of each vertical support beam 14 away from the first transverse positioning beam 13, and the second positioning structure 12 is arranged on the bottom support beam 15, and the axial direction of the first transverse positioning beam 13, the axial direction of the vertical support beam 14, and the axial direction of the bottom support beam 15 are perpendicular to each other.

[0034] Specifically, the first transverse positioning beam 13 is welded to the vertical support beam 14 to form a tic-tac-toe structure. The first positioning structure 11 is perpendicular to the tic-tac-toe structure, and the vertical steel mesh 80 is positioned by the first positioning structure 11 when in use.

[0035] In this embodiment, there are two vertical support beams 14 and two bottom support beams 15, and the bottom support beam 15 is welded to the bottom of the vertical support beam 14 to form an L-shaped structure. The second positioning structure 12 is disposed on the bottom support beam 15 and is perpendicular to the bottom support beam 15.

[0036] In this embodiment, there are multiple first transverse positioning beams 13, and the multiple first transverse positioning beams 13 are arranged at intervals along the axial direction of the vertical support beam 14, and the second frame 20 is pivotally connected to the topmost first transverse positioning beam 13 among the multiple first transverse positioning beams 13.

[0037] Specifically, there are two first transverse positioning beams 13, and the two first transverse positioning beams 13 are welded to the vertical support beam 14 at an upper and lower interval. Of course, there can be three or more first transverse positioning beams 13, and each first transverse positioning beam 13 is provided with a first positioning structure 11. Multiple first transverse positioning beams 13 can further position the vertical support beam 14.

[0038] like Figures 4 to 5 As shown, the first positioning structure 11 includes a plurality of positioning teeth 111, and at least one first transverse positioning beam 13 is provided with a plurality of positioning teeth 111, and the plurality of positioning teeth 111 are arranged at intervals along the axial direction of the first transverse positioning beam 13 and extend in a direction away from the bottom support beam 15 and the vertical support beam 14.

[0039] Specifically, a plurality of positioning teeth 111 are arranged at intervals along the length direction of the first transverse positioning beam 13, a positioning space is formed between any two adjacent positioning teeth 111, and the vertical steel bars of the vertical steel mesh 80 are accommodated in the positioning space. The number of accommodating spaces formed by the plurality of positioning teeth 111 is the same as the number of vertical steel bars of the vertical steel mesh 80.

[0040] In this embodiment, a first positioning structure 11 is also provided on the side of the vertical support beam 14 facing the vertical steel mesh 80, and a plurality of positioning teeth 111 are arranged at intervals along the length direction of the vertical support beam 14 to form a plurality of positioning spaces for positioning the transverse steel bars of the vertical steel mesh 80.

[0041] like Figure 6 to Figure 7 As shown, the second positioning structure 12 includes a plurality of support positioning plates 121 , and each bottom support beam 15 is respectively provided with a plurality of support positioning plates 121 , and the plurality of support positioning plates 121 are arranged at intervals along the axial direction of the bottom support beam 15 , and the support positioning plates 121 extend toward the second frame 20 .

[0042] Specifically, the support positioning plates 121 are steel plates, and a plurality of support positioning plates 121 are spaced apart on the bottom support beam 15 . The support positioning plates 121 are perpendicular to the bottom support beam 15 and welded to the bottom support beam 15 .

[0043] like Figure 1 and Figure 7 As shown, the support assembly 30 includes at least two support positioning beams 31, the number of the support positioning beams 31 is the same as that of the bottom support beams 15 and they correspond one to one, one end of the support positioning beam 31 is connected to the second frame 20, and the other end of the support positioning beam 31 is abutted against any one of the multiple support positioning plates 121 on the corresponding bottom support beam 15.

[0044] Specifically, there are two support positioning beams 31, and the two support positioning beams 31 are respectively arranged on both sides of the second frame 20. An accommodating space is formed between two adjacent support positioning plates 121. The support positioning beam 31 is accommodated in the accommodating space. The accommodating space is adapted to the diameter of the support positioning beam 31. The oblique steel mesh 70 and the vertical steel mesh 80 form a Figure 2 The trapezoidal structure shown in Figure 3 and Figure 7 As shown, when in use, the supporting positioning beam 31 is perpendicular to the bottom supporting beam 15 and is arranged in the accommodating space, and the entire supporting frame forms an approximately wedge-shaped structure.

[0045] In this embodiment, the number of the support positioning plates 121 on the two bottom support beams 15 is the same and corresponds one to one, and the connecting line of the two corresponding support positioning plates 121 is parallel to the first transverse positioning beam 13 .

[0046] Specifically, the two bottom support beams 15 are parallel, and the connecting line of the two support positioning plates 121 respectively located on the two bottom support beams 15 is perpendicular to the vertical support beam 14 .

[0047] like Figure 1 and Figure 6As shown, the second frame 20 includes at least one oblique support beam 22 and a second transverse positioning beam 23. The third positioning structure 21 is arranged on the oblique support beam 22, and the oblique support beam 22 is pivotally connected to the first frame 10. The second transverse positioning beam 23 is connected to one end of all the oblique support beams 22 away from the first frame 10, the axial direction of the second transverse positioning beam 23 is perpendicular to the axial direction of the oblique support beam 22, and the support assembly 30 is arranged on the second transverse positioning beam 23.

[0048] Specifically, there are two oblique support beams 22, and the two oblique support beams 22 are perpendicular to and welded to the second transverse positioning beam 23. Of course, they can also be connected by screws.

[0049] In an embodiment not shown in the figure of the present application, there are four supporting positioning beams 31, and the four supporting positioning beams 31 are respectively arranged at both ends of the second transverse positioning beam 23. Correspondingly, there are also four bottom support beams 15, and the supporting positioning beams 31 and the bottom support beams 15 correspond one by one to better support the second frame 20.

[0050] In this embodiment, there are two second transverse positioning beams 23, and the third positioning structure 21 is provided on the oblique support beam 22 and the second transverse positioning beam 23. The third positioning structure 21 also includes a plurality of positioning teeth 111. The plurality of positioning teeth 111 are arranged at intervals along the length direction of the oblique support beam 22 and the second transverse positioning beam 23. The third positioning structure 21 arranged on the oblique support beam 22 and the second transverse positioning beam 23 can respectively position the first steel bar and the second steel bar of the oblique steel mesh 70, and the first steel bar is perpendicular to the second steel bar.

[0051] Optionally, there are three or more second transverse positioning beams 23 , and the plurality of second transverse positioning beams 23 are arranged at intervals on the oblique support beam 22 to better position the oblique steel mesh 70 .

[0052] like Figure 1 , Figure 3 and Figure 6 As shown, the angle-adjustable support frame further includes a first pivot member 40 and a second pivot member 50. There are at least two first pivot members 40, which are disposed at one end of the oblique support beam 22 and sleeved on the first frame 10 for connecting the first frame 10. There are at least two second pivot members 50, which are disposed on the support assembly 30 and sleeved on the second transverse positioning beam 23 for connecting the second transverse positioning beam 23.

[0053] Specifically, the first pivot member 40 and the second pivot member 50 are both bearings, the first pivot member 40 is arranged on the oblique support beam 22 and sleeved on the first transverse positioning beam 13, and the second pivot member 50 is arranged on the support positioning beam 31 and sleeved on the second transverse positioning beam 23. Of course, other structures such as gears are also possible.

[0054] like Figure 1 As shown, the angle-adjustable support frame further includes an axle assembly 60 , which is connected to the first frame 10 for reinforcing the first frame 10 .

[0055] Specifically, the axle assembly 60 includes a connecting shaft 61 and a roller 62. The connecting shaft 61 is respectively connected to the two bottom support beams 15. The structural strength of the first frame 10 is strengthened by the connecting shaft 61. The connecting shaft 61 is perpendicular to the bottom support beam 15. There are multiple rollers 62, and the multiple rollers 62 are sleeved on the connecting shaft 61.

[0056] In this embodiment, there are multiple axle assemblies 60, and two connecting shafts 61 are arranged at intervals, so as to achieve the stability of the entire first frame 10. Of course, there can be more axle assemblies. After the support frame is used, the first frame 10 can be moved by pushing the axle assemblies 60, which is conducive to the movement of the support frame. In order to stabilize the entire device, the bottom support beam 15 is made of round steel or square steel, and the bottom support beam 15 has a certain weight.

[0057] From the above description, it can be seen that the above-mentioned embodiments of the utility model achieve the following technical effects: by setting an adjustable angle support frame including a first frame 10, a second frame 20 and a support assembly 30, a first positioning structure 11 is provided at one end of the first frame 10, and the first positioning structure 11 is used to position the steel mesh, a second positioning structure 12 is provided at the other end of the first frame 10, and a third positioning structure 21 is provided on the second frame 20, the second frame 20 is pivotally connected to the end of the first frame 10 having the first positioning structure 11, and the end of the second frame 20 away from the first frame 10 can be rotated in a direction close to or away from the second positioning structure 12, and the support assembly 30 is rotatably arranged at the end of the second frame 20 away from the first frame 10, and the support assembly 30 is rotatably arranged at the end of the second frame 20 away from the first frame 10, and the support assembly 30 and the second positioning structure 12 are connected. The different positions of the support assembly 30 and the second positioning structure 12 are abutted to change the angle between the first frame 10 and the second frame 20, and the vertical steel mesh 80 and the oblique steel mesh 70 are positioned respectively by the first positioning structure 11 and the third positioning structure 21. At the same time, the second frame 20 and the first frame 10 are rotatably connected. After completing the support positioning construction between the oblique steel mesh 70 and the vertical steel mesh 80 at one construction position, the support frame is moved to the next construction position, and the angle between the second frame 20 and the first frame 10 is adjusted. The support assembly 30 and the second positioning structure 12 are abutted at different positions by adjusting the angle between the support assembly 30 and the second frame 20, so that the support frame can adapt to the different angles between multiple groups of oblique steel meshes 70 and vertical steel meshes 80, and finally meet the steel mesh construction requirements at different angles.

[0058] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] It should be noted that the terms "upper", "lower", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0060] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A support frame with adjustable angle, characterized in that: include: A first frame (10), wherein a first positioning structure (11) is disposed at one end of the first frame (10), the first positioning structure (11) being used to position the steel mesh, and a second positioning structure (12) is disposed at the other end of the first frame (10); a second frame (20), wherein a third positioning structure (21) is disposed on the second frame (20), the second frame (20) is pivotally connected to the first frame (10) at one end having the first positioning structure (11), and an end of the second frame (20) away from the first frame (10) is capable of rotating in a direction approaching or away from the second positioning structure (12); A support assembly (30), wherein the support assembly (30) is rotatably disposed at one end of the second frame (20) away from the first frame (10), and the support assembly (30) abuts against different positions of the second positioning structure (12) to change the angle between the first frame (10) and the second frame (20).

2. The angle-adjustable support frame according to claim 1, characterized in that: The first frame (10) comprises: at least one first transverse positioning beam (13), the first positioning structure (11) being arranged on the first transverse positioning beam (13), and the second frame (20) being pivotally connected to the first transverse positioning beam (13); at least two vertical support beams (14), at least one of the vertical support beams (14) being respectively arranged at both ends of the first transverse positioning beam (13); At least two bottom support beams (15), at least one bottom support beam (15) is respectively provided at one end of each vertical support beam (14) away from the first transverse positioning beam (13), the second positioning structure (12) is provided on the bottom support beam (15), and the axial direction of the first transverse positioning beam (13), the axial direction of the vertical support beam (14), and the axial direction of the bottom support beam (15) are perpendicular to each other.

3. The angle-adjustable support frame according to claim 2, characterized in that: There are a plurality of first transverse positioning beams (13), and the plurality of first transverse positioning beams (13) are arranged at intervals along the axial direction of the vertical support beam (14), and the second frame (20) is pivotally connected to the first transverse positioning beam (13) located at the top among the plurality of first transverse positioning beams (13).

4. The angle-adjustable support frame according to claim 2, characterized in that: The first positioning structure (11) comprises a plurality of positioning teeth (111), and at least one of the first transverse positioning beams (13) is provided with the plurality of positioning teeth (111), and the plurality of positioning teeth (111) are arranged at intervals along the axial direction of the first transverse positioning beam (13) and extend in a direction away from the bottom support beam (15) and the vertical support beam (14).

5. The angle-adjustable support frame according to claim 2, characterized in that: The second positioning structure (12) comprises a plurality of support positioning plates (121), and each of the bottom support beams (15) is respectively provided with a plurality of the support positioning plates (121). The plurality of support positioning plates (121) are arranged at intervals along the axial direction of the bottom support beam (15), and the support positioning plates (121) extend toward the second frame (20).

6. The angle-adjustable support frame according to claim 5, characterized in that: The support assembly (30) comprises at least two support positioning beams (31), the number of the support positioning beams (31) being the same as and corresponding to the bottom support beams (15), one end of the support positioning beam (31) being connected to the second frame (20), and the other end of the support positioning beam (31) being abutted against any one of the plurality of support positioning plates (121) on the corresponding bottom support beam (15).

7. The angle-adjustable support frame according to claim 5, characterized in that: The number of the support positioning plates (121) on the two bottom support beams (15) is the same and corresponds one to one, and the connecting line of the two corresponding support positioning plates (121) is parallel to the first transverse positioning beam (13).

8. The angle-adjustable support frame according to any one of claims 1 to 7, characterized in that: The second frame (20) comprises: at least one oblique support beam (22), the third positioning structure (21) being arranged on the oblique support beam (22), and the oblique support beam (22) being pivotally connected to the first frame (10); A second transverse positioning beam (23), the second transverse positioning beam (23) is connected to one end of all the oblique support beams (22) away from the first frame (10), the axial direction of the second transverse positioning beam (23) is perpendicular to the axial direction of the oblique support beam (22), and the support assembly (30) is arranged on the second transverse positioning beam (23).

9. The angle-adjustable support frame according to claim 8, characterized in that: The angle-adjustable support frame further comprises: A first pivoting member (40), at least two of which are provided at one end of the oblique support beam (22) and sleeved on the first frame (10) for connecting the first frame (10); A second pivot member (50), there are at least two second pivot members (50), the second pivot members (50) are arranged on the support assembly (30), and are sleeved on the second transverse positioning beam (23) for connecting the second transverse positioning beam (23).

10. The angle-adjustable support frame according to any one of claims 1 to 7, characterized in that: The angle-adjustable support frame further comprises an axle assembly (60), wherein the axle assembly (60) is connected to the first frame (10) and is used to strengthen the first frame (10).

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