Folding type supporting frame

Abstract

The invention belongs to the technical field of supporting structures, and particularly relates to a folding type supporting frame which comprises a main frame and an auxiliary frame, and a connecting mechanism capable of being stretched and relaxed is arranged between the main frame and the auxiliary frame. The main frame comprises an upper part and a lower part which are mutually hinged, the auxiliary frame comprises an upper part and a lower part which are mutually hinged, one end of the connecting mechanism is arranged at the hinged part of the upper part and the lower part of the main frame, and the other end is arranged at the hinged part of the upper part and the lower part of the auxiliary frame; one end of the auxiliary frame is arranged at the upper part of the main frame; the folding type supporting frame provided by the invention can be quickly changed into a storage state from a use state when use is finished, the occupied volume is smaller than that of an existing supporting frame, and the folding type supporting frame is convenient to transfer, store or carry.

Description

Technical Field

[0001] The invention belongs to the technical field of supporting structures, and in particular relates to a foldable supporting frame. Background Art

[0002] A support frame is a structural component used to provide support and stability. They are used in many fields, such as construction, furniture, and machinery manufacturing. Depending on the usage scenario, the design and material of the support frame will also vary. Most existing support frames adopt a fixed X-shaped structure, which can effectively disperse and transfer forces from different directions, enhancing the overall stability of the structure.

[0003] However, in some specific application scenarios, the fixed X-shaped support frame is not the best choice. For example, in some scenarios with special requirements for space height, the X-shaped support frame may not meet the needs. In addition, the fixed X-shaped support frame is usually large in size, difficult to store, and difficult to transport. Summary of the invention

[0004] The present invention aims to overcome at least one of the above-mentioned deficiencies of the prior art and provide a foldable support frame to solve the problem that the existing support frames have a narrow application range.

[0005] The present invention provides a foldable support frame, comprising a main frame and an auxiliary frame, wherein a retractable connecting mechanism is arranged between the main frame and the auxiliary frame; the main frame comprises an upper part and a lower part hinged to each other, and the auxiliary frame comprises an upper part and a lower part hinged to each other, one end of the connecting mechanism is arranged at a hinge between an upper part and a lower part of the main frame, and the other end is arranged at a hinge between an upper part and a lower part of the auxiliary frame; one end of the auxiliary frame is arranged at an upper part of the main frame, and the other end is arranged at a lower part of the main frame.

[0006] A retractable connection mechanism is provided between the upper and lower hinged parts of the main frame and the upper and lower hinged parts of the auxiliary frame. The distance between the main frame and the auxiliary frame is adjusted through the connection mechanism, thereby adjusting the height of the support frame. When the support height needs to be lowered, the distance between the main frame and the auxiliary frame is increased through the connection mechanism, and the support frame is pressed so that the upper part of the main frame and the upper part of the auxiliary frame are folded downward, and the lower part of the main frame and the lower part of the auxiliary frame are folded upward, thereby reducing the height of the support frame to achieve a folding effect; when the height needs to be increased, the distance between the main frame and the auxiliary frame is reduced through the connection mechanism, the upper part of the main frame and the upper part of the auxiliary frame are folded upward, and the lower part of the main frame and the lower part of the auxiliary frame are folded downward, thereby increasing the height of the support frame. The height of the support frame is adjustable, and due to the pulling force of the connection mechanism on the main frame and the auxiliary frame to approach each other, the support frame can be fixed at a certain height without the help of external force, which is suitable for a variety of usage scenarios.

[0007] Furthermore, the main frame also includes a first hinge device, the tail end of the upper part of the main frame and the head end of the lower part of the main frame are respectively hinged on the first hinge device, the upper and lower parts of the main frame can rotate relative to the first hinge device, and a connecting mechanism is arranged between the auxiliary frame and the first hinge device.

[0008] The upper and lower parts of the main frame can rotate relative to the first hinge device. The first hinge device is set to hinge the upper and lower parts respectively. The first hinge device is used to reduce the wear caused by sliding rotation between the two and increase the service life.

[0009] Furthermore, the auxiliary frame also includes a second hinge device, the tail end of the upper part of the auxiliary frame and the head end of the lower part of the auxiliary frame are respectively hinged on the second hinge device, and the upper part of the auxiliary frame and the lower part of the auxiliary frame can rotate relative to the second hinge device; the upper part of the auxiliary frame is hinged to the upper part of the main frame, and the lower part of the auxiliary frame is hinged to the lower part of the main frame; the first hinge device and the second hinge device are arranged opposite to each other, and one end of the connecting mechanism is arranged on the first hinge device, and the other end is arranged on the second hinge device.

[0010] The upper part and the lower part of the auxiliary frame are respectively hinged on the second hinge device, and rotate relative to the second hinge device. When the height needs to be lowered, the distance between the first hinge device and the second hinge device is increased through the connecting mechanism, so that the upper part of the main frame and the upper part of the auxiliary frame are folded downward, and the lower part of the main frame and the lower part of the auxiliary frame are folded upward, thereby lowering the height of the support frame to achieve a folding effect; when the height needs to be increased, the distance between the first hinge device and the second hinge device is reduced through the connecting mechanism, so that the upper part of the main frame and the upper part of the auxiliary frame are folded upward, and the lower part of the main frame and the lower part of the auxiliary frame are folded downward, thereby increasing the height of the support frame.

[0011] Further, the upper part of the main frame includes an upper support rod, and the lower part includes a lower support rod; and / or, the upper part of the auxiliary frame includes an auxiliary upper support rod, and the lower part includes an auxiliary lower support rod, the auxiliary upper support rod is hinged to the upper support rod, and the auxiliary lower support rod is hinged to the lower support rod.

[0012] The upper and lower parts of the main frame include upper and lower support rods, and the upper and lower parts of the auxiliary frame include auxiliary upper and lower support rods. The support rods can be used to reduce the space occupied by the support frame. At the same time, due to the small size of the support rods, the number of upper and lower support rods can be increased as needed during actual use, making the support frame structure more stable.

[0013] Furthermore, the connecting mechanism includes a connecting line and a wire take-up device, the wire take-up device is arranged on the second hinge device, one end of the connecting line is arranged on the first hinge device, and the other end is arranged on the wire take-up device.

[0014] The wire take-up device is arranged on the second hinge device, and the connecting line arranged on the first hinge device passes through the second hinge device to connect to the wire take-up device. When the height needs to be lowered, the length of the connecting line is extended, and external force is applied to make the upper part of the main frame and the upper part of the auxiliary frame fold downward, and the lower part of the main frame and the lower part of the auxiliary frame fold upward. When the required height is reached, the length of the connecting line is fixed by the wire take-up device, and the connecting line provides an inward pulling force for the two fixing devices, so that the support frame can be fixed at a certain height, so that the support frame can achieve a foldable effect; when the height needs to be raised, the length of the connecting line is reduced by the wire take-up device, and the main frame and the auxiliary frame are stretched due to the pulling force of the connecting line, thereby increasing the height of the support frame.

[0015] Furthermore, it also includes a first connecting member, one end of which is hinged to the upper support rod and the other end is hinged to the auxiliary upper support rod; and / or, it also includes a second connecting member, one end of which is hinged to the lower support rod and the other end is hinged to the auxiliary lower support rod.

[0016] The auxiliary upper support rod is arranged on the upper support rod, and the auxiliary lower support rod is arranged on the lower support rod. In the process of adjusting the height of the support frame, the auxiliary upper and lower support rods need to rotate relative to the upper and lower support rods. By arranging the first connecting member and the second connecting member at the connection between the two, the sliding wear during relative rotation is reduced, the service life is increased, and the connection between the two is also made more stable.

[0017] Further, the first connecting member is arranged at the middle or lower part of the upper support rod; and / or the second connecting member is arranged at the middle or lower part of the lower support rod.

[0018] When the support frame is compressed and stored, the first connecting member or the second connecting member is arranged in the middle or lower part of the upper and lower supporting rods of the main frame, so as to reduce the length of the support frame when folded, reduce the storage volume, and facilitate transportation.

[0019] Furthermore, it also includes a stabilizing rod, one end of which is arranged on the upper support rod.

[0020] One end of the first stabilizing rod is arranged on the upper support rod. When the support height is reached, the stabilizing rod can be turned outward. One end of the rod is hinged to the upper support rod, and the other end can be connected to the supporting structure to enhance the stability of the support.

[0021] Furthermore, it also includes a reinforcement device, which is arranged on the auxiliary frame.

[0022] When the support frame reaches the support height, the upper and lower support rods corresponding to the main frame and the auxiliary frame are reinforced by the reinforcement device to improve the rigidity of the frame.

[0023] Furthermore, the main frame includes a plurality of upper support rods and a plurality of lower support rods, and the tail ends of the plurality of upper support rods and the head ends of the plurality of lower support rods are respectively hinged on the first hinge device; and / or, the auxiliary frame includes a plurality of auxiliary upper support rods and a plurality of auxiliary lower support rods, and the tail ends of the plurality of auxiliary upper support rods and the head ends of the plurality of auxiliary lower support rods are respectively hinged on the second hinge device.

[0024] The upper part of the main frame is set as an upper support rod, and the lower part is set as a lower support rod. The upper support rod and the lower support rod are respectively hinged on the first hinge device. The number of upper and lower support rods set on the first hinge device is increased, the bearing capacity of the support frame is improved, and the stability of the support frame structure can be maintained.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The foldable support frame provided by the present invention can be quickly changed from a use state to a storage state when the use is over, and the volume occupied is smaller than that of the existing support frame, so it is convenient to transfer, store or carry.

[0027] 2. The foldable support frame provided by the present invention utilizes a retractable connection mechanism so that the support frame can be adjusted in height at any time according to needs and fixed at a certain height, which is suitable for different usage scenarios.

[0028] 3. The foldable support frame provided by the present invention is provided with a fixing device and a reinforcing device, and a plurality of upper and lower support rods are added to ensure the stability of the support frame structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention.

[0030] Figure 2 It is a schematic diagram of a folded state of an embodiment of the present invention.

[0031] Figure numerals: 1-upper support rod, 2-lower support rod, 3-auxiliary upper support rod, 4-auxiliary lower support rod, 5-first hinge device, 6-second hinge device, 7-retractor, 8-connecting line, 9-first connecting piece, 10-second connecting piece, 11-stabilizing rod. DETAILED DESCRIPTION

[0032] The drawings of the present invention are only for illustrative purposes and should not be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted.

[0033] The present embodiment provides a foldable support frame, comprising a main frame and an auxiliary frame, wherein a retractable connection mechanism is arranged between the main frame and the auxiliary frame; the main frame comprises an upper portion and a lower portion hinged to each other, and the auxiliary frame comprises an upper portion and a lower portion hinged to each other, one end of the connection mechanism is arranged at a hinge between the upper portion and the lower portion of the main frame, and the other end is arranged at a hinge between the upper portion and the lower portion of the auxiliary frame; one end of the auxiliary frame is arranged at the upper portion of the main frame, and the other end is arranged at the lower portion of the main frame.

[0034] A retractable connection mechanism is provided between the upper and lower hinged parts of the main frame and the upper and lower hinged parts of the auxiliary frame. The distance between the main frame and the auxiliary frame is adjusted through the connection mechanism, thereby adjusting the height of the support frame. When the support height needs to be lowered, the distance between the main frame and the auxiliary frame is increased through the connection mechanism, and the support frame is pressed so that the upper part of the main frame and the upper part of the auxiliary frame are folded downward, and the lower part of the main frame and the lower part of the auxiliary frame are folded upward, thereby reducing the height of the support frame to achieve a folding effect; when the height needs to be increased, the distance between the main frame and the auxiliary frame is reduced through the connection mechanism, the upper part of the main frame and the upper part of the auxiliary frame are folded upward, and the lower part of the main frame and the lower part of the auxiliary frame are folded downward, thereby increasing the height of the support frame. The height of the support frame is adjustable, and due to the pulling force of the connection mechanism on the main frame and the auxiliary frame to approach each other, the support frame can be fixed at a certain height without the help of external force, which is suitable for a variety of usage scenarios.

[0035] In specific implementation, the main frame further includes a first hinge device 5, the tail end of the upper part of the main frame and the head end of the lower part of the main frame are respectively hinged on the first hinge device 5, the upper part and the lower part of the main frame can rotate relative to the first hinge device 5, and a connecting mechanism is provided between the auxiliary frame and the first hinge device 5. Preferably, a rotating shaft and a shaft sleeve are provided on the first hinge device, and the upper part and the lower part of the main frame are connected to the first hinge device through the rotating shaft and the shaft sleeve, and the rotating shaft and the sleeve reduce the wear caused by the sliding rotation between the two, thereby increasing the service life.

[0036] During specific implementation, the auxiliary frame includes an auxiliary upper part, an auxiliary lower part and a second hinge device 6, the tail end of the auxiliary upper part and the head end of the auxiliary lower part are respectively hinged on the second hinge device 6, and the auxiliary upper part and the auxiliary lower part can rotate relative to the second hinge device 6; the auxiliary upper part is hinged to the upper part of the main frame, and the auxiliary lower part is hinged to the lower part of the main frame, and a connecting mechanism is arranged between the first hinge device 5 and the second hinge device 6.

[0037] The auxiliary upper part and the auxiliary lower part are respectively hinged on the second hinge device 6, and rotate relative to the second hinge device 6. When the height needs to be lowered, the distance between the first hinge device 5 and the second hinge device 6 is increased through the connecting mechanism, so that the upper part of the main frame and the upper part of the auxiliary frame are folded downward, and the lower part of the main frame and the lower part of the auxiliary frame are folded upward, thereby reducing the height of the support frame to achieve a folding effect; when the height needs to be increased, the distance between the first hinge device 5 and the second hinge device 6 is reduced through the connecting mechanism, so that the upper part of the main frame and the upper part of the auxiliary frame are folded upward, and the lower part of the main frame and the lower part of the auxiliary frame are folded downward, thereby increasing the height of the support frame.

[0038] Preferably, the upper part of the main frame includes an upper support rod 1, and the lower part includes a lower support rod 2; the upper part of the auxiliary frame includes an auxiliary upper support rod 3, and the lower part includes an auxiliary lower support rod 4, the auxiliary upper support rod 3 is hinged to the upper support rod 1, and the auxiliary lower support rod 4 is hinged to the lower support rod 2.

[0039] The upper and lower parts of the main frame include upper and lower support rods, and the upper and lower parts of the auxiliary frame include auxiliary upper and lower support rods. The support rods can be used to reduce the space occupied by the support frame. At the same time, due to the small size of the support rods, the number of upper and lower support rods can be increased as needed during actual use, making the support frame structure more stable.

[0040] like Figure 1 As shown, the connection mechanism includes a connection line 8 and a wire take-up device 7. The wire take-up device 7 is arranged on the second hinge device 6. One end of the connection line 8 is arranged on the first hinge device 5, and the other end is arranged on the wire take-up device 7.

[0041] The wire take-up device 7 is arranged on the second hinge device 6, and the connecting line 8 arranged on the first hinge device 5 passes through the second hinge device 6 to connect the wire take-up device 7. When the height needs to be lowered, the length of the connecting line 8 is extended, and an external force is applied to make the upper support rod 1 and the auxiliary upper support rod 3 fold downward, and the lower support rod 2 and the auxiliary lower support rod 4 fold upward. When the required height is reached, the length of the connecting line 8 is fixed by the wire take-up device 7, and the connecting line 8 provides an inward pulling force for the two fixing devices, so that the support frame can be fixed at a certain height, so that the support frame can achieve a foldable effect; when the height needs to be raised, the length of the connecting line 8 is reduced by the wire take-up device 7, and the first hinge device 5 and the second hinge device 6 are close to each other due to the pulling force of the connecting line, driving the upper support rod 1 and the auxiliary upper support rod 3 to be stretched upward, and the lower support rod 2 and the auxiliary lower support rod 4 to be folded downward, thereby increasing the height of the support frame.

[0042] Preferably, it also includes a first connecting member 9, one end of which is hinged to the upper support rod 1 and the other end is hinged to the auxiliary upper support rod 3; it also includes a second connecting member 10, one end of which is hinged to the lower support rod 2 and the other end is hinged to the auxiliary lower support rod 4.

[0043] The auxiliary upper support rod 3 is arranged on the upper support rod 1, and the auxiliary lower support rod 4 is arranged on the lower support rod 2. In the process of adjusting the height of the support frame, the auxiliary upper and lower support rods need to rotate relative to the upper and lower support rods. By arranging the first connecting member 9 and the second connecting member 10 at the connection between the two, the sliding wear during relative rotation is reduced, the service life is increased, and the connection between the two is also made more stable.

[0044] In a specific implementation, the first connecting member 9 is arranged at the middle or lower part of the upper supporting rod 1 , and the second connecting member 10 is arranged at the middle or lower part of the lower supporting rod 2 .

[0045] When the support frame is compressed and stored, the first connecting member 9 and the second connecting member 10 are respectively arranged at the middle and lower parts of the upper and lower support rods of the main frame, which can reduce the length of the support frame when folded, reduce the storage volume, and facilitate transportation.

[0046] Preferably, it further comprises a stabilizing rod 11 , one end of which is arranged on the upper support rod 1 .

[0047] One end of the stabilizing rod 11 is arranged on the upper support rod 1 of the main frame. When the supporting height is reached, the stabilizing rod 11 can be turned outward. One end of the rod is hinged to the upper support rod 1, and the other end can be connected to the supporting structure to enhance the stability of the support.

[0048] During specific implementation, it also includes a reinforcement device, which is arranged on the auxiliary frame.

[0049] In this embodiment, the reinforcement device is configured as a clip. When the support frame reaches the support height, the clip is used to fasten the upper and lower support rods corresponding to the main frame and the auxiliary frame to increase the rigidity of the frame.

[0050] Preferably, it includes a plurality of upper support rods and a plurality of lower support rods, and the tail ends of the plurality of upper support rods and the head ends of the plurality of lower support rods are respectively hinged on the first hinge device; similarly, it includes a plurality of auxiliary upper support rods and a plurality of auxiliary lower support rods, and the tail ends of the plurality of auxiliary upper support rods and the head ends of the plurality of auxiliary lower support rods are respectively hinged on the second hinge device.

[0051] In this embodiment, two upper support rods 1 and two lower support rods 2 are provided, and two auxiliary upper support rods 3 and two auxiliary lower support rods 4 are provided. The two upper support rods 1 and the lower support rods 2 are respectively hinged on the first hinge device 5, and the auxiliary upper support rods 3 and the auxiliary lower support rods 4 are respectively hinged on the upper support rod 1 and the lower support rod 2. The number of upper and lower support rods and auxiliary upper and lower support rods provided on the first hinge device 5 is increased, the bearing capacity of the support frame is improved, and the stability of the support frame structure can be maintained.

[0052] The present invention works as follows:

[0053] The first hinge device 5 and the second hinge device 6 are arranged opposite to each other, the upper support rod 1 and the lower support rod 2 are hinged on the inner side of the first hinge device 5, and can rotate up and down relative to the first hinge device 5, and the auxiliary upper support rod 3 and the auxiliary lower support rod 4 are hinged on the inner side of the second hinge device 6, and can rotate up and down relative to the second hinge device 6. When the support frame needs to be stored, the wire take-up device 7 is loosened, the length of the connecting wire 8 is increased, the distance between the first hinge device 5 and the second hinge device 6 is pulled apart, and the support frame is pressed, so that the upper support rod 1 and the auxiliary upper support rod 3 rotate downward, and the lower support rod 2 and the auxiliary lower support rod 4 rotate upward, and the support frame forms a rhombus-like structure, such as Figure 2 As shown, the support height is lowered; when the required height is reached, the wire take-up device 7 is closed to fix the length of the connecting wire 8. At this time, the first hinge device 5 and the second hinge device 6 are subjected to inward pulling force, and the force balance is achieved with the pressure at the top, and the required height is maintained, so as to achieve the effect of being fixed at a certain height; when the height of the support frame is pressed to the lowest, the storage is completed; when the support frame needs to be unfolded, the wire take-up device 7 is used to reduce the length of the connecting wire 8, the first hinge device 5 and the second hinge device 6 are subjected to inward pulling force, and the two fixing devices are close to drive the upper support rod 1 and the auxiliary upper support rod 3 to rotate upward, and the lower support rod 2 and the auxiliary lower support rod 4 rotate downward, and the support height is increased; when the support height is reached, the upper support rod 1 and the auxiliary upper support rod 3 are clamped with a clip to increase the rigidity of the frame, and the stabilizing rod 11 is flipped outward, one end of the stabilizing rod 11 is hinged to the upper support rod 1, and the other end can be connected to the structure of the top support to enhance the stability of the support.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the technical solution of the present invention, and are not intended to limit the specific implementation methods of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A foldable support frame, characterized in that: It includes a main frame and an auxiliary frame, and a retractable connecting mechanism is arranged between the main frame and the auxiliary frame; the main frame includes an upper part and a lower part hinged to each other, and the auxiliary frame includes an upper part and a lower part hinged to each other, one end of the connecting mechanism is arranged at the hinge between the upper part and the lower part of the main frame, and the other end is arranged at the hinge between the upper part and the lower part of the auxiliary frame; one end of the auxiliary frame is arranged at the upper part of the main frame, and the other end is arranged at the lower part of the main frame.

2. A foldable support frame according to claim 1, characterized in that: The main frame also includes a first hinge device, the tail end of the upper part of the main frame and the head end of the lower part of the main frame are respectively hinged on the first hinge device, the upper and lower parts of the main frame can rotate relative to the first hinge device, and a connecting mechanism is arranged between the auxiliary frame and the first hinge device.

3. A foldable support frame according to claim 2, characterized in that: The auxiliary frame also includes a second hinge device, the tail end of the upper part of the auxiliary frame and the head end of the lower part of the auxiliary frame are respectively hinged on the second hinge device, and the upper part of the auxiliary frame and the lower part of the auxiliary frame can rotate relative to the second hinge device; the upper part of the auxiliary frame is hinged to the upper part of the main frame, and the lower part of the auxiliary frame is hinged to the lower part of the main frame; the first hinge device and the second hinge device are arranged opposite to each other, and one end of the connecting mechanism is arranged on the first hinge device, and the other end is arranged on the second hinge device.

4. A foldable support frame according to claim 3, characterized in that: The upper part of the main frame includes an upper support rod, and the lower part includes a lower support rod; and / or, the upper part of the auxiliary frame includes an auxiliary upper support rod, and the lower part includes an auxiliary lower support rod, the auxiliary upper support rod is hinged to the upper support rod, and the auxiliary lower support rod is hinged to the lower support rod.

5. The foldable support frame according to claim 3, characterized in that: The connecting mechanism comprises a connecting line and a wire take-up device. The wire take-up device is arranged on the second hinge device. One end of the connecting line is arranged on the first hinge device, and the other end is arranged on the wire take-up device.

6. A foldable support frame according to claim 3, characterized in that: It also includes a first connecting member, one end of which is hinged to the upper support rod and the other end is hinged to the auxiliary upper support rod; and / or, it also includes a second connecting member, one end of which is hinged to the lower support rod and the other end is hinged to the auxiliary lower support rod.

7. A foldable support frame according to claim 6, characterized in that: The first connecting member is arranged at the middle or lower part of the upper support rod; and / or the second connecting member is arranged at the middle or lower part of the lower support rod.

8. A foldable support frame according to claim 7, characterized in that: It also includes a stabilizing rod, one end of which is arranged on the upper support rod.

9. A foldable support frame according to claim 8, characterized in that: It also includes a reinforcement device, which is arranged on the auxiliary frame.

10. A foldable support frame according to claim 9, characterized in that: The main frame includes a plurality of upper support rods and a plurality of lower support rods, and the tail ends of the plurality of upper support rods and the head ends of the plurality of lower support rods are respectively hinged on the first hinge device; and / or, the auxiliary frame includes a plurality of auxiliary upper support rods and a plurality of auxiliary lower support rods, and the tail ends of the plurality of auxiliary upper support rods and the head ends of the plurality of auxiliary lower support rods are respectively hinged on the second hinge device.

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