Supporting frame

Abstract

The utility model discloses a supporting frame which comprises a supporting rod and a sliding seat located on the supporting rod, a plurality of supporting legs are arranged on the sliding seat in the circumferential direction, and part of the supporting legs are telescopic legs. The main connecting rods are rotationally connected with the supporting rods and the supporting legs respectively, auxiliary connecting rods are rotationally connected to the positions, close to the supporting rods, of the main connecting rods, and the auxiliary connecting rods are rotationally connected to the supporting rods; when any supporting leg is triggered to be folded along the supporting rod, the main connecting rod drives the auxiliary connecting rod to rotate and approach the supporting rod, and the other supporting legs are driven to approach the supporting rod to be folded. According to the utility model, the use convenience of the support frame is improved, and meanwhile, the folding storage size is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of support frame of multiple support legs linkage, and particularly relates to a support frame. BACKGROUND

[0002] The support frame in prior art is usually linked through a connecting rod when the support legs are opened or stored, and the linkage mode makes the use of the support frame very inconvenient, for example, if there is only one connecting rod, the lower auxiliary leg rod needs two or more steps of operation to complete the action when the telescopic leg is retracted, and the relative steps are more. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a support frame which makes the opening and folding of the support frame more rapid and convenient.

[0004] To achieve the above-mentioned purpose, the utility model realizes through the following technical scheme.

[0005] A support frame comprises a support rod and a sliding seat on the support rod, the sliding seat is provided with a plurality of support legs in the circumferential direction, and part of the support legs are telescopic legs;

[0006] Further comprising a main connecting rod rotatably connected with the support rod and the support legs respectively, a sub-connecting rod rotatably connected with the main connecting rod near the support rod, and the sub-connecting rod is rotatably connected with the support rod;

[0007] When any one of the support legs is triggered to be folded along the support rod, the main connecting rod drives the sub-connecting rod to rotate and approach the support rod, and drives the remaining support legs to approach the support rod and be folded.

[0008] Further, a sub-sleeve is arranged on the support rod, and the sub-sleeve is rotatably connected with the sub-connecting rod.

[0009] Further, the sub-sleeve is arranged on the support rod, a plurality of assembly cavities are arranged at the bottom of the sub-sleeve, and the plurality of sub-connecting rods correspond to the assembly cavities one by one.

[0010] Further, first assembly holes are arranged on both sides of the assembly cavities, and a first mounting hole at one end of the sub-connecting rod is connected with the first assembly hole through a rotating rod.

[0011] Further, a second assembly hole is arranged on the main connecting rod near the support rod, and a second mounting hole at the other end of the sub-connecting rod is rotatably connected with the second assembly hole.

[0012] Further, when the support legs are triggered to be folded, the sub-sleeve slides, so that the included angle between the main connecting rod and the sub-connecting rod towards the support rod changes from an acute angle to an obtuse angle.

[0013] Further, a fixed seat is arranged at the bottom of the support rod, and the main connecting rod is rotatably connected with the fixed seat.

[0014] Further, the telescopic leg comprises a main leg rod and a secondary leg rod sliding along the main leg rod, and the main leg rod and the secondary leg rod are connected through a reset assembly.

[0015] Further, the reset assembly is a compression spring sleeved between the secondary leg rod and the main leg rod, and the two ends of the compression spring are respectively abutted with the top end of the main leg rod and the bottom end of the secondary leg rod.

[0016] Further, upper and lower limiting blocks are further arranged on the support rod, and the sliding seat and the secondary sliding sleeve are respectively arranged on the upper and lower sides of the upper and lower limiting blocks.

[0017] The utility model discloses the beneficial effects are as follows:

[0018] In the utility model, the setting of two connecting rods makes the folding and unfolding of the whole support leg more convenient, the whole linkage makes the use of the support frame more convenient, the whole folding storage size is saved, and the whole support frame after folding is shorter.

[0019] In the utility model, the existence of the secondary connecting rod makes the telescopic leg drive the main connecting rod and the secondary connecting rod through one-step operation, and the two linkage rods are arranged to realize one-step contraction of the secondary leg rod and the main leg rod, so that the operation steps are reduced. DRAWINGS

[0020] Figure 1 A structural schematic view of the support frame is provided in the utility model;

[0021] Figure 2 A structural schematic view of the support frame in an unfolded state is provided in the utility model;

[0022] Figure 3 A structural schematic view of the support frame in a folded state is provided in the utility model;

[0023] Figure 4 A structural schematic view of the support leg, the main connecting rod and the secondary connecting rod is provided in the utility model;

[0024] Figure 5 An assembly view of the support leg, the main connecting rod and the secondary connecting rod is provided in the utility model;

[0025] Figure 6 An exploded view of the support leg, the main connecting rod and the secondary connecting rod is provided in the utility model;

[0026] Figure 7 A structural schematic view of the support leg is provided in the utility model;

[0027] Figure 8 An assembly drawing of the support leg is provided in the utility model;

[0028] Figure 9 A sectional view of the support leg is provided in the utility model;

[0029] In the drawing:

[0030] 1, support rod; 2, sliding seat; 3, support leg; 31, main leg rod; 311, mounting groove; 312, slide; 313, limiting groove; 32, auxiliary leg rod; 321, avoiding port; 322, limiting block; 33, reset assembly; 4, main connecting rod; 41, second assembly hole; 5, auxiliary connecting rod; 51, first mounting hole; 52, second mounting hole; 6, auxiliary sliding sleeve; 61, assembly cavity; 62, first assembly hole; 7, fixed seat; 8, upper limiting block; 9, lower limiting block. DETAILED DESCRIPTION

[0031] The utility model will be explained in detail below in combination with each embodiment shown in the drawings, but it should be explained that these embodiments are not the limitation of the utility model, and the equivalent transformation or replacement of function, method or structure made by the ordinary skill in the art according to these embodiments all belong to the protection scope of the utility model.

[0032] Referring to the drawings, Figures 1-8 The support frame in the embodiment includes support rod 1 and sliding seat 2 on support rod 1, and a plurality of support legs 3 are arranged on the sliding seat 2 in the circumferential direction, and part of the support legs 3 are telescopic legs; in the embodiment, for example, 3, 4, 5 or more support legs are arranged, and then in these support legs, all of them can be telescopic legs, or part of them can be telescopic legs, for example, in the structure of three support legs, one or two of them are telescopic legs, and the other is a fixed-length leg, so that the whole support frame can be placed on the uneven working surface by controlling the telescopic legs, and the stability of the support can be ensured.

[0033] In the linkage control of the embodiment, the two ends of the main connecting rod 4 are rotatably connected with the support rod 1 and the support leg 3, the main connecting rod 4 can be linked with the support leg in the telescopic leg mode or the support leg with a fixed length, then the auxiliary connecting rod 5 is added, the auxiliary connecting rod 5 is rotatably connected with the support rod 1 and is arranged close to the main connecting rod 4, and in use, the auxiliary connecting rod 5 slides up and down on the support rod 1 to drive the main connecting rod 4 to lift together, so that the support leg 3 is retracted or opened, in the embodiment, since each support leg is linked with the main connecting rod 4 and the auxiliary connecting rod 5, when any one support leg 3 is triggered to be folded along the support rod 1, the main connecting rod drives the auxiliary connecting rod to rotate and then lifts along the support rod 1 and close to the support rod 1, so as to drive the remaining support legs 3 to close to the support rod 1. The purpose of retracting all support legs at one time is achieved.

[0034] In the embodiment, in order to make the linkage of the plurality of auxiliary connecting rods 5 more synchronous, the auxiliary sliding sleeve 6 is added, at this time all the auxiliary connecting rods 5 are rotatably connected with the auxiliary sliding sleeve 6, and in the up and down lifting of the auxiliary sliding sleeve 6, the auxiliary connecting rod 5 and the main connecting rod 4 are retracted and opened, and one-key control is achieved.

[0035] In the embodiment, the auxiliary sliding sleeve 6 is specifically sleeved on the support rod 1, a plurality of assembly cavities 61 are arranged at the bottom of the auxiliary sliding sleeve 6, and a plurality of auxiliary connecting rods 5 correspond to the assembly cavities 61 one by one. In the embodiment, in order to ensure the flatness of the structure after retraction, the assembly cavities 61 can be formed by recessing at the bottom of the auxiliary sliding sleeve 6, and then the auxiliary connecting rods 5 can be arranged in the recessed part after retraction, and the entire auxiliary connecting rod 5 forms a retracted state of being sleeved on the outside of the support rod 1 and being in the same plane with the auxiliary sliding sleeve 6, and the structure is more beautiful.

[0036] In order to realize rotation, first assembly holes 62 are arranged on both sides of the assembly cavity 61, and then first mounting holes 51 are arranged at the end of the auxiliary connecting rod 5, a same rotating rod passes through the two first assembly holes 62 and the first mounting hole 51, so that the auxiliary connecting rod rotates along the rotating rod at the auxiliary sliding sleeve 6.

[0037] For the rotation of the main connecting rod and the auxiliary connecting rod, specifically, a second assembly hole 41 is arranged at one third to one fifth of the length of the main connecting rod 4 and close to the end of the support rod 1, and then a second mounting hole 52 is arranged at the other end of the auxiliary connecting rod 5, the second assembly hole 41 can be two, and then a rotating rod is assembled to realize rotation connection, so that the auxiliary connecting rod 5 can rotate at the main connecting rod 4. At this time, the auxiliary connecting rod 5 will realize linkage when the length is short. Here, the assembly part can be formed by a local protrusion, and then the second assembly hole 42 is arranged on the assembly part, and then the rotation occurs above the body of the main connecting rod 4, and there is no excessive interference between them.

[0038] In this embodiment, the increase of the sub-connecting rod 5 forms an included angle between the sub-connecting rod 5 and the main connecting rod 4, cooperates with the support rod 1 to form a linkage and angularly changed triangle, and when the support leg 3 is triggered to fold, the sub-sleeve 6 slides to change the included angle between the main connecting rod 4 and the sub-connecting rod 5 towards the support rod 1 from an acute angle to an obtuse angle. Further, when it becomes an acute angle, the whole support leg 3 is in the state of being stretched, and when it becomes an obtuse angle, the support leg 3 is in the state of being folded at the support rod 1.

[0039] In order to ensure stability in sliding or lifting, a fixed seat 7 is further arranged at the bottom of the support rod 1, and the main connecting rod 4 is rotationally connected with the fixed seat 7. In the lifting of the sub-sleeve 6 and the stretching and folding of the support leg 3, the whole fixed seat 7 is unchanged, and the main connecting rod 4 rotates along the fixed seat 7 to approach or move away from the support rod 1.

[0040] For the telescopic leg in this embodiment, the telescopic leg includes a main leg rod 31 and a sub-leg rod 32 sliding along the main leg rod 31, and the main leg rod 31 and the sub-leg rod 32 are connected by a reset component 33. Further, the stretching and folding control of the whole leg is realized by the compression or reset of the reset component 33.

[0041] Specifically, the reset component 33 in this embodiment is a compression spring sleeved between the sub-leg rod 32 and the main leg rod 31, and the two ends of the compression spring respectively abut against the top end of the main leg rod 31 and the bottom end of the sub-leg rod 32. That is, the first end of the compression spring abuts against the main leg rod 31 close to the sliding seat 2, and the second end abuts against the sub-leg rod 32 away from the sliding seat 2. In this embodiment, the automatic pop-up effect of the support leg is realized by the arrangement of the compression spring.

[0042] In this embodiment, the inner wall of the main leg rod 31 can be provided with a mounting groove 311, the reset component 33 can be two, and is respectively assembled in the mounting groove 311. Then, an avoiding opening 321 for the rotation of the main connecting rod 4 is arranged at the sub-leg rod 32, one end of the reset component 33 abuts against one side groove wall of the mounting groove 311 or the limiting wall surface inside it, and the other end of the reset component 33 abuts against the sub-leg rod 32. The rotation shaft on the main connecting rod 4 can move along the length direction of the mounting groove 311 to compress the reset component 33 or restore the length of the reset component 33.

[0043] In this embodiment, a slide 312 can also be arranged at the mounting groove 311, and the reset component performs telescopic movement in the slide 312. The both ends of the rotation shaft of the main connecting rod 4 close to the support leg 3 are respectively arranged on the two slides 312, and the main connecting rod 4 is driven to slide in the telescopic movement.

[0044] In order to limit the movement of the reset assembly 33, a limiting groove 313 for accommodating the reset assembly 33 is concavely arranged on the slide 312, so as to limit the movement of the reset assembly 33 along the width direction of the slide 312, and meanwhile, a certain positioning effect is achieved.

[0045] In the embodiment, a limiting block 322 is arranged on the auxiliary leg rod 32 in the extension direction of the slide 312, and the limiting block 322 limits the sliding of the reset assembly 33 along the axis length direction.

[0046] In order to avoid the sliding out of the sliding seat 2 and the auxiliary sliding sleeve 6, upper and lower limiting blocks 8 and 9 are further arranged on the support rod 1, and the sliding seat 2 and the auxiliary sliding sleeve 6 are respectively arranged on the upper and lower sides of the upper and lower limiting blocks 8 and 9. Furthermore, the entire sliding is between the two limiting blocks, and the sliding out is avoided.

[0047] In the embodiment, the sliding seat 2 is slidably arranged on the support rod 1 and slides between the upper and lower limiting blocks. The fixed seat 7 is fixed to the lower end of the support rod 1, and the entire structure is formed, and a good limiting effect is achieved.

[0048] Compared with the prior art which only has the main connecting rod 4 structure, the auxiliary connecting rod 5 is further arranged in the embodiment, and the auxiliary connecting rod 5 is slidably arranged in the main leg rod 31, so as to slide within a certain range. The elastic assembly is arranged between the main connecting rod 4 and the auxiliary connecting rod 5, so as to achieve the reset function and the like.

[0049] In the embodiment, one end of the main leg rod 31 is rotatably connected with the sliding seat 2, one end of the main connecting rod 4 is rotatably connected with one end of the auxiliary leg rod 5, and the other end of the main connecting rod 4 is rotatably connected with the fixed seat 7, so as to form a triangular slide sleeve mechanism. In the entire triangle, the sliding seat 2 is a sliding point, and under the action of the elastic element, in the initial state, the main connecting rod 4 and the support leg 3 are not in action at the rotating position.

[0050] The sliding seat 2 is pulled to the upper limiting block 8. In the triangle formed by the main connecting rod 4, the partial support leg 3 and the support rod 1, the main leg rod 31 is pressed, and the auxiliary leg rod 32 is retracted under the linkage of the support leg 3 and the main connecting rod 4.

[0051] The auxiliary sliding sleeve 6 is slidably arranged on the support rod 1. One end of the auxiliary connecting rod 5 is rotatably connected with the auxiliary sliding sleeve 6, and the other end is rotatably connected with the main connecting rod 4, so as to form a triangular slide sleeve mechanism. At this time, the auxiliary sliding sleeve 6, the partial support rod 1, the auxiliary connecting rod 5 and the partial main connecting rod 4 form a triangle. When one auxiliary leg rod is retracted, the remaining auxiliary leg rods are retracted under the action of the triangle formed by the support rod, the auxiliary connecting rod and the partial main connecting rod.

[0052] The series of detailed descriptions listed above are only specific descriptions for the feasible implementation manners of the present application, and are not used to limit the protection scope of the present application, and equivalent implementation manners or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

[0053] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0054] In addition, it should be understood that although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A support frame, characterized by, The support rod is provided with a sliding seat, and a plurality of support legs are arranged on the sliding seat in a circumferential direction, and some of the support legs are telescopic legs; The main connecting rod is rotatably connected to the support rod and the support legs, and the main connecting rod is rotatably connected to a secondary connecting rod near the support rod, and the secondary connecting rod is rotatably connected to the support rod. When any one of the support legs is triggered to be folded along the support rod, the main connecting rod drives the secondary connecting rod to rotate and approach the support rod, and drives the remaining support legs to approach the support rod and be folded.

2. A support frame according to claim 1, wherein The secondary sliding sleeve is rotatably connected to the secondary connecting rod.

3. A support frame according to claim 2, wherein, The secondary sliding sleeve is arranged on the support rod, and a plurality of assembly cavities are arranged at the bottom of the secondary sliding sleeve.

4. A support frame according to claim 3, wherein, The first assembly holes are arranged on both sides of the assembly cavities, and the first mounting holes at one end of the secondary connecting rod are connected to the first assembly holes through a rotating rod.

5. The support frame of claim 2, wherein, The second assembly holes are arranged on the main connecting rod near the support rod, and the second mounting holes at the other end of the secondary connecting rod are rotatably connected to the second assembly holes.

6. The support frame of claim 2, wherein, When the support legs are triggered to be folded, the secondary sliding sleeve slides, so that the included angle between the main connecting rod and the secondary connecting rod towards the support rod changes from an acute angle to an obtuse angle.

7. The support frame of claim 1, wherein The main connecting rod is rotatably connected to the fixing seat at the bottom of the support rod.

8. The support frame of claim 1, wherein, The telescopic leg comprises a main leg rod and a secondary leg rod sliding along the main leg rod, and the main leg rod and the secondary leg rod are connected through a reset assembly.

9. A support frame according to claim 8, wherein, The reset assembly is a compression spring arranged between the secondary leg rod and the main leg rod, and the two ends of the compression spring are respectively abutted with the top end of the main leg rod and the bottom end of the secondary leg rod.

10. The support frame of claim 2, wherein, The upper limiting block and the lower limiting block are arranged on the support rod, and the sliding seat and the secondary sliding sleeve are respectively arranged on the upper and lower sides of the upper limiting block and the lower limiting block.

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