Supporting leg capable of being tightened by one key and supporting frame

Abstract

The utility model discloses a supporting leg capable of being tightened through one key and a supporting frame. The supporting leg comprises a mounting base, a pulling buckle, a transmission gear, a plurality of supporting pipes, a plurality of driving pipes and a plurality of locking assemblies. The supporting pipes are sleeved step by step and can be relatively unfolded or contracted; the driving pipes are rotationally arranged in the supporting pipes and correspond to the supporting pipes one to one, the driving pipes are connected in a sleeved mode step by step and can be relatively unfolded or contracted, and the last-stage driving pipe is connected with the last-stage supporting pipe. The mounting seat is connected with the first-stage supporting pipe; the transmission gear is arranged in the mounting seat and is connected with the first-stage driving pipe; the pull buckle is rotationally arranged on the mounting seat, is provided with a driving tooth part meshed with the transmission gear and has a first state and a second state which can be switched mutually; by means of the structure, locking or unlocking of the multiple locking assemblies can be achieved in a one-key mode, rapid unfolding and folding of the supporting legs are achieved, and very good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the field of photographic equipment, in particular to a supporting foot and a supporting frame which can be tightened or loosened with one key. Background Art

[0002] Mobile phones and cameras (or tablet computers, laptop computers, etc.) are commonly used devices in people's daily life and work. In order to meet the shooting needs of some users, a bracket is used to support the shooting equipment during shooting to free the user's hands. The bracket usually includes a plurality of support legs, and the support legs are retractable to adjust the height of the bracket. The retractable support leg has three sections of support rods, and a group of locking mechanisms are arranged between two adjacent sections of support rods. Each group of locking mechanisms has an independent locking / unlocking switch. Both groups of locking / unlocking switches need to be turned on to unfold all the support rods on the support leg. If you want to unfold the entire bracket, you need to turn on 6 locking / unlocking switches, which is extremely inconvenient to use. Therefore, a support leg and a support frame that can be tightened and loosened with one button are urgently needed to solve the above problems. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a support foot and a support frame that can be tightened or loosened with one key.

[0004] The technical solution adopted by an embodiment of the utility model to solve the technical problem is: a support foot that can be tightened or loosened with one key, including a mounting seat, a pull button, a transmission gear, a plurality of support tubes, a plurality of drive tubes and a plurality of locking components;

[0005] The support tubes are sleeved step by step and can be relatively expanded or contracted;

[0006] The driving tube is rotatably arranged in the supporting tube and corresponds to the supporting tube one by one. The driving tubes are sleeved step by step and can be relatively expanded or contracted. The last-stage driving tube is connected to the last-stage supporting tube.

[0007] The mounting seat is connected to the first-stage support tube;

[0008] The transmission gear is arranged in the mounting seat and connected with the first-stage driving pipe;

[0009] The pull button is rotatably arranged on the mounting seat, and is provided with a driving tooth portion meshing with the transmission gear and has a first state and a second state that can be switched to each other;

[0010] The locking assembly is connected between two adjacent support tubes;

[0011] The trigger can switch between a first state and a second state when the driving tube and the supporting tube are relatively expanded or contracted, so as to drive the driving tube to rotate and make the locking assembly tighten or loosen step by step from bottom to top.

[0012] As one of the preferred embodiments of the utility model, a support foot that can be tightened or loosened with one button also includes a transmission rod and a bearing. The bearing is arranged in a mounting seat and is located above the transmission gear. The transmission rod is passed through the transmission gear and one end is connected to the inner ring of the bearing and the other end is connected to the first-stage drive tube.

[0013] As one of the preferred embodiments of the utility model, a support foot that can be tightened or loosened with one key also includes a stabilizing ring that is movably arranged in the mounting seat and located between the bearing and the driving tube, and a gear ring that meshes with the transmission gear is arranged on the inner wall of the stabilizing ring.

[0014] As one of the preferred embodiments of the present utility model, the transmission gear and the transmission rod are integrally formed.

[0015] As one of the preferred embodiments of the utility model, a through slot and a first mounting ear and a second mounting ear are arranged on the outer wall of the mounting seat on both sides of the through slot, the pull buckle is connected between the first mounting ear and the second mounting ear through a rotating structure, and the driving tooth portion is engaged with the transmission gear through the through slot.

[0016] As one of the preferred embodiments of the present utility model, the rotating structure is configured as a rotating shaft structure.

[0017] As one of the preferred embodiments of the utility model, the mounting seat is bonded to the first-stage supporting tube.

[0018] A support frame comprises the support feet.

[0019] The beneficial effects of the utility model include: a support foot and a support frame that can be tightened and loosened with one key, the support foot comprises a mounting seat, a pull button, a transmission gear, a plurality of support tubes, a plurality of drive tubes and a plurality of locking components; the support tubes are sleeved step by step and can be relatively expanded or retracted; the drive tube is rotatably arranged in the support tube and corresponds to the support tube one by one, the drive tube is sleeved step by step and can be relatively expanded or retracted, and the last-stage drive tube is connected to the last-stage support tube; the mounting seat is connected to the first-stage support tube; the transmission gear is arranged in the mounting seat and connected to the first-stage drive tube; the pull button is rotatably arranged on the mounting seat, the pull button is provided with a driving tooth portion meshing with the transmission gear and has a first state and a second state that can be switched to each other; the locking component is connected between two adjacent support tubes; the pull button can switch between the first state and the second state when the drive tube and the support tube are relatively expanded or retracted, so as to drive the drive tube to rotate, so that the locking component is locked or loosened step by step from bottom to top; through the above structure, it is possible to achieve one-key locking or unlocking of multiple locking components, realize the rapid expansion and storage of the support foot, and has very good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a structural schematic diagram of a support frame;

[0022] Figure 2 An exploded view of a support frame;

[0023] Figure 3 for Figure 2 A partial enlarged view of the middle A area;

[0024] Figure 4 is a cross-sectional view of a support frame;

[0025] Figure 5 for Figure 4 A partial enlarged view of the middle B area;

[0026] Figure 6 for Figure 4 A partial enlarged view of the middle C area. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0028] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0031] Reference Figures 1 to 6 A support foot that can be tightened or loosened with one key, comprising a mounting seat 10, a pull button 20, a transmission gear 30, a plurality of support tubes 40, a plurality of drive tubes 50 and a plurality of locking components 60;

[0032] The support tubes 40 are sleeved step by step and can be relatively expanded or contracted;

[0033] The driving tube 50 is rotatably disposed in the supporting tube 40 and corresponds to the supporting tube 40 one by one. The driving tube 50 is sleeved step by step and can be relatively expanded or contracted. The last stage of the driving tube 50 is connected to the last stage of the supporting tube 40.

[0034] The mounting seat 10 is connected to the first-stage support tube 40;

[0035] The transmission gear 30 is disposed in the mounting seat 10 and connected to the first-stage driving tube 50;

[0036] The pull button 20 is rotatably mounted on the mounting seat 10, and is provided with a driving tooth portion 21 meshing with the transmission gear 30 and having a first state and a second state that can be switched to each other;

[0037] The locking assembly 60 is connected between two adjacent support tubes 40;

[0038] The trigger 20 can switch between the first state and the second state when the driving tube 50 and the supporting tube 40 are relatively expanded or contracted, so as to drive the driving tube 50 to rotate and make the locking assembly 60 tighten or loosen step by step from bottom to top.

[0039] ① In the present invention, the support frame preferably has a base and three support legs rotatably connected to the base, and each support leg preferably includes three support tubes 40 (a first-level support tube 40, a second-level support tube 40 and a third-level support tube 40), three drive tubes 50 (a first-level drive tube 50, a second-level drive tube 50 and a third-level drive tube 50) and three locking assemblies 60 (a first-level locking assembly 60, a second-level locking assembly 60 and a third-level locking assembly 60), and the support tubes 40 correspond to the drive tubes 50 one by one, wherein the first-level locking assembly 60 is connected between the second-level support tube 40 and the first-level support tube 40, the second-level locking assembly 60 is connected between the third-level support tube 40 and the second-level support tube 40, and the third-level locking assembly 60 is connected between the third-level support tube 40 and the third-level drive tube The three support tubes 40 are connected to each other, thereby forming a three-stage telescopic support foot; specifically, the diameters of the three support tubes 40 are reduced one by one, so that the three support tubes 40 can be sleeved step by step and expanded or contracted relative to the upper support tube 30; and the diameters of the three drive tubes 50 are reduced one by one, so that the three drive tubes 50 can be sleeved step by step and expanded or contracted relative to the upper drive tube 50; further, the three sleeved drive tubes 50 are placed in the innermost support tube 30 and the head end of the first-stage drive tube 50 is docked and connected to the transmission rod 61, while the tail end of the third-stage drive tube 50 is connected to the third-stage support tube 40, so that the transmission rod 61 can drive the drive tube 50 to rotate step by step from top to bottom, and at the same time, the rotation of the third-stage drive tube 50 can drive the support tube 40 to rotate step by step from bottom to top, so that the locking assembly 60 is locked or released step by step from bottom to top.

[0040] ② The power of the transmission rod 61 comes from the pull button 20. Specifically, the pull button 20 is rotatably connected to the mounting seat 10 and has a driving tooth portion 21 that meshes with the transmission gear 30. When the pull button 20 is in the first state, the locking assembly 60 is in a locked state, and when the pull button 20 is in the second state, the locking assembly 60 is in an unlocked state. Taking the conversion of the supporting foot from the retracted state to the expanded state as an example, when the pull button 20 switches from the first state to the second state under the action of an external force, the transmission gear 30 will be driven to rotate through the driving tooth portion 21, thereby driving the transmission rod 6 1 rotates, the transmission rod 61 drives the first-stage driving tube 50, the second-stage driving tube 50 and the third-stage driving tube 50 to rotate, and then drives the third-stage supporting tube 40, the second-stage supporting tube 40 and the first-stage supporting tube 40 to rotate step by step, and finally drives the third-stage locking assembly 60, the second-stage locking assembly 60 and the first-stage locking assembly 60 to unlock step by step, that is, the restrictions between the third-stage supporting tube 40 and the third-stage driving tube 50, between the third-stage supporting tube 40 and the second-stage supporting tube 40, and between the second-stage supporting tube 40 and the first-stage supporting tube 40 are gradually released;

[0041] When the supporting legs are fully unfolded, the pull buckle 20 switches from the second state to the first state under the action of external force, and will drive the transmission gear 30 to rotate in the opposite direction through the driving tooth portion 21, and then drive the transmission rod 61 to rotate in the opposite direction, and the above process is reversed, so that the rotation between the supporting tubes 40 is restricted again through the 3-level locking assembly 60, so as to maintain the unfolded state.

[0042] ③It should be noted that the structure of the locking assembly 60, the connection structure between the locking assembly 60 and the driving tube 50, and the connection structure between the locking assembly 60 and the support tube 40 can all adopt existing structures; and the driving tubes 50 and the driving tubes 50 can achieve extension and retraction while achieving synchronous rotation by means of the cooperation of guide grooves and guide blocks, and the guide grooves and guide blocks extend along the length direction of the driving tube 50; they will not be elaborated here, nor shall they be considered as limitations on the present invention.

[0043] ④ The advantage of the utility model is that: through the above structure, multiple locking components can be locked or unlocked with one button, and the supporting legs can be quickly deployed and stored, which has very good practicality.

[0044] In one embodiment, a support foot that can be tightened or loosened with one button also includes a transmission rod 61 and a bearing 62. The bearing 62 is arranged in the mounting seat 10 and is located above the transmission gear 30. The transmission rod 61 is passed through the transmission gear 30 and one end is connected to the inner ring of the bearing 62 and the other end is connected to the first-stage drive tube 50.

[0045] In one embodiment, a support foot that can be tightened or loosened with one button also includes a stabilizing ring 70 that is movably disposed in the mounting base 10 and is located between the bearing 62 and the driving tube 50. A gear ring 71 that meshes with the transmission gear 30 is disposed on the inner wall of the stabilizing ring 70. This arrangement enables the transmission gear 30 to rotate more stably in the mounting base 10.

[0046] In one embodiment, the transmission gear 30 and the transmission rod 61 are integrally formed; preferably, the transmission gear 30 and the transmission rod 61 are integrally injection molded.

[0047] In one embodiment, a through slot 83 and a first mounting ear 81 and a second mounting ear 82 are provided on the outer wall of the mounting base 10. The pull button 20 is connected between the first mounting ear 81 and the second mounting ear 82 through a rotating structure 90, and the driving tooth portion 21 is meshed with the transmission gear 30 through the through slot 83.

[0048] As a preferred embodiment of the rotating structure 90, the rotating structure 90 is configured as a rotating shaft structure.

[0049] In one embodiment, the mounting base 10 is bonded to the first-stage support tube 40 .

[0050] A support frame comprises the support feet.

[0051] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A support foot that can be tightened or loosened with one button, characterized in that: It comprises a mounting seat (10), a pull button (20), a transmission gear (30), a plurality of support tubes (40), a plurality of drive tubes (50) and a plurality of locking components (60); The support tubes (40) are sleeved step by step and can be relatively expanded or contracted; The driving tube (50) is rotatably disposed in the supporting tube (40) and corresponds to the supporting tube (40) one by one. The driving tube (50) is sleeved step by step and can be relatively expanded or contracted. The last stage of the driving tube (50) is connected to the last stage of the supporting tube (40); The mounting seat (10) is connected to the first-stage support tube (40); The transmission gear (30) is arranged in the mounting seat (10) and connected to the first-stage driving tube (50); The pull button (20) is rotatably mounted on the mounting seat (10), and the pull button (20) is provided with a driving tooth portion (21) meshing with the transmission gear (30) and has a first state and a second state that can be switched to each other; The locking assembly (60) is connected between two adjacent support tubes (40); The trigger (20) can switch between a first state and a second state when the drive tube (50) and the support tube (40) are relatively expanded or contracted, so as to drive the drive tube (50) to rotate and allow the locking assembly (60) to be locked or released step by step from bottom to top.

2. The one-touch tightening support leg according to claim 1, characterized in that: It also includes a transmission rod (61) and a bearing (62), wherein the bearing (62) is arranged in the mounting seat (10) and located above the transmission gear (30), and the transmission rod (61) is passed through the transmission gear (30) and one end of the transmission rod (61) is connected to the inner ring of the bearing (62) and the other end is connected to the first-stage driving tube (50).

3. The one-touch tightening support leg according to claim 2, characterized in that: It also includes a stabilizing ring (70) movably arranged in the mounting seat (10) and located between the bearing (62) and the driving tube (50), and a gear ring (71) meshing with the transmission gear (30) is arranged on the inner wall of the stabilizing ring (70).

4. The one-touch tightening support foot according to claim 2, characterized in that: The transmission gear (30) and the transmission rod (61) are integrally formed.

5. The one-touch tightening support leg according to claim 1, characterized in that: The outer wall of the mounting seat (10) is provided with a through slot (83) and a first mounting ear (81) and a second mounting ear (82) arranged on both sides of the through slot (83); the pull button (20) is connected between the first mounting ear (81) and the second mounting ear (82) via a rotating structure (90); and the driving tooth portion (21) is meshed with the transmission gear (30) via the through slot (83).

6. The one-touch tightening support leg according to claim 5, characterized in that: The rotating structure (90) is configured as a rotating shaft structure.

7. The one-touch tightening support leg according to claim 1, characterized in that: The mounting seat (10) is bonded to the first-stage support tube (40).

8. A support frame, characterized in that: The invention comprises the supporting foot as described in any one of claims 1 to 7.

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