Locking structure of telescopic supporting leg of tripod

Abstract

The utility model relates to the technical field of tripods, in particular to a locking structure of a telescopic supporting leg of a tripod, the locking structure is arranged on the outer side of a first pipe body and a second pipe body in a sleeving mode and comprises a locking sleeve combination and a locking assembly, the locking sleeve combination comprises a first locking sleeve and a second locking sleeve, the first locking sleeve is fixedly arranged on the first pipe body in a sleeving mode, and the second locking sleeve is fixedly arranged on the second pipe body in a sleeving mode. The second lock sleeve locks or loosens the second pipe body, the first lock sleeve is connected with the second lock sleeve, the second lock sleeve comprises a first extending part, a deformation part and a second extending part, the deformation part is connected with the first extending part and the second extending part, and the locking assembly comprises an elastic piece, a guide piece and a rotating piece. The elastic piece abuts against the first extending part and the second extending part respectively, the guide piece is provided with a clamping groove and connected with the first extending part, and the rotating piece is rotationally installed on the first extending part. The rotating piece is clamped into or separated from the clamping groove, so that the second pipe body is hooped or loosened by the second lock sleeve, and the telescopic pipe body is locked or loosened more quickly.

Description

TECHNICAL FIELD

[0001] The present application relates to the tripod technical field, more particularly to a tripod telescopic support leg locking structure. BACKGROUND

[0002] The tripod is a support object that stabilizes the placed object at a certain height. The tripod includes support legs. In order to allow the placed object to be freely stabilized at a certain height, the length of the existing support leg is adjustable. In order to achieve the adjustment of the support leg, the existing tripod support leg includes a plurality of sequentially sleeved pipe bodies. In order to fix the relative position of the adjacent two pipe bodies, a locking structure is needed.

[0003] A locking structure of a telescopic support leg is known, as shown in Figure 1 The locking structure includes a first lock sleeve 90 and a second lock sleeve 91. The first lock sleeve 90 is fixedly connected with the second lock sleeve 91. The first lock sleeve 90 and the second lock sleeve 91 each have two extending parts 901. Each of the extending parts 901 has a threaded hole (not marked in the figure). A bolt 92 passes through the two threaded holes. By rotating the bolt 92, the two extending parts 901 are close to or away from each other, and the corresponding telescopic pipe body is clamped or loosened, so as to fix or adjust the relative position of the adjacent two telescopic pipes. However, the bolt 92 needs to be rotated for many turns, which is slow. In addition, the tripod has three support legs. In order to keep stable, after adjusting the height of one of the support legs, the heights of the other two support legs usually need to be adjusted. Therefore, the bolt 92 of the three support legs needs to be rotated every time the support height of the tripod is adjusted, which further makes the height adjustment mode more complicated and time-consuming.

[0004] Therefore, there is a need to provide a tripod telescopic support leg locking structure that can lock or loosen the telescopic pipe body more quickly. CONTENT OF THE UTILITY MODEL

[0005] The present application aims to provide a locking structure of a telescopic supporting leg of a tripod, which is sleeved on a telescopic pipe combination, the telescopic pipe combination comprising a first pipe body and a second pipe body, the first pipe body being sleeved on the second pipe body, wherein the locking structure of the telescopic supporting leg of the tripod comprises a locking sleeve combination and a locking assembly, the locking sleeve combination comprising a first locking sleeve and a second locking sleeve, the first locking sleeve being fixedly sleeved on the first pipe body, the second locking sleeve being sleeved on the second pipe body and locking or loosening the second pipe body, the first locking sleeve being connected with the second locking sleeve, the second locking sleeve comprising a first extending portion, a deformation portion and a second extending portion, the deformation portion being fixedly connected with the first extending portion and the second extending portion on both sides, the locking assembly comprising an elastic member, a guide member and a rotating member, the elastic member being abutted with the first extending portion and the second extending portion at both ends, the guide member being connected with the first extending portion, the guide member having a clamping groove, the clamping groove being located on a side of the second extending portion away from the first extending portion, the rotating member being rotatably installed on the first extending portion, when the rotating member rotates, the rotating member is clamped into or separated from the clamping groove, when the rotating member is clamped into the clamping groove, the elastic member is in a compressed and deformed state, and the rotating member is abutted with the side of the second extending portion away from the first extending portion, by rotating the rotating member and clamping the rotating member into or separating the rotating member from the clamping groove, the second locking sleeve is realized to tighten or loosen the second pipe body, compared with the prior art of rotating a plurality of bolts, the present application has the advantage of faster locking or loosening of the telescopic pipe body.

[0006] Another purpose of the present application is to provide a locking structure of a telescopic supporting leg of a tripod, wherein the top of the second extending portion has a first guide inclined surface, the first guide inclined surface being located on a side of the second extending portion away from the first extending portion, the rotating member having a second guide inclined surface, when the rotating member is located above the second extending portion, the projection of the second guide inclined surface in the height direction overlaps the first guide inclined surface, by setting the first guide inclined surface and the second guide inclined surface, when the rotating member rotates in the direction of the clamping groove, the rotating member can push the second extending portion to move in the direction of the first extending portion.

[0007] In order to achieve at least one of the above-mentioned purposes, the present application provides a locking structure of a telescopic supporting leg of a tripod, which is sleeved on a telescopic pipe combination, the telescopic pipe combination comprising a first pipe body and a second pipe body, the first pipe body being sleeved on the second pipe body, wherein the locking structure of the telescopic supporting leg of the tripod comprises:

[0008] A locking sleeve assembly, the locking sleeve assembly comprises a first locking sleeve and a second locking sleeve, the first locking sleeve is fixedly sleeved on the first pipe body, the second locking sleeve is sleeved on the second pipe body, and the second locking sleeve locks or releases the second pipe body, the first locking sleeve is connected with the second locking sleeve, the second locking sleeve comprises a first extending part, a deformation part and a second extending part, and two sides of the deformation part are fixedly connected with the first extending part and the second extending part respectively; and

[0009] A locking assembly, the locking assembly comprises an elastic member, a guide member and a rotating member, two ends of the elastic member are respectively abutted against the first extending part and the second extending part, the guide member is connected with the first extending part, the guide member has a clamping groove, the clamping groove is located on a side of the second extending part away from the first extending part, and the rotating member is rotationally installed on the first extending part, when the rotating member rotates, the rotating member is clamped into or separated from the clamping groove, when the rotating member is clamped into the clamping groove, the elastic member is in a compressed and deformed state, and the rotating member is abutted against a side of the second extending part away from the first extending part.

[0010] In one or more embodiments of the present application, the second extending part has a through hole, one end of the guide member is fixedly connected with the first extending part, the other end of the guide member passes through the through hole and extends by a predetermined distance, the end of the guide member away from the first extending part has the clamping groove, the elastic member is a spring, and the elastic member is sleeved on the guide member.

[0011] In one or more embodiments of the present application, the diameter of the through hole is greater than the maximum radial dimension of the guide member.

[0012] In one or more embodiments of the present application, the top of the second extending part has a first guide inclined surface, the first guide inclined surface is located on a side of the second extending part away from the first extending part, the rotating member has a second guide inclined surface, and when the rotating member is located above the second extending part, the projection of the second guide inclined surface in the height direction overlaps the first guide inclined surface.

[0013] In one or more embodiments of the present application, the locking assembly further comprises an extension member, the rotating member is rotationally installed on the first extending part through the extension member, one end of the extension member is fixedly connected with the first extending part, and the other end of the extension member is rotationally connected with the rotating member.

[0014] In one or more embodiments of the present application, the first locking sleeve comprises a third protruding portion, an arc-shaped portion and a fourth protruding portion, the arc-shaped portion is fixedly connected with the third protruding portion and the fourth protruding portion respectively, the third protruding portion and the fourth protruding portion are both provided with a threaded hole, the locking structure of the telescopic supporting leg further comprises a bolt, the bolt is screwed into the threaded holes of the third protruding portion and the fourth protruding portion, and the arc-shaped portion is tightened around the first tube body.

[0015] In the embodiments of the present application, the locking structure of the telescopic supporting leg is sleeved on the telescopic tube combination, the telescopic tube combination comprises a first tube body and a second tube body, the first tube body is sleeved on the second tube body, the locking structure of the telescopic supporting leg comprises a locking sleeve combination and a locking assembly, the locking sleeve combination comprises a first locking sleeve and a second locking sleeve, the first locking sleeve is fixedly sleeved on the first tube body, the second locking sleeve is sleeved on the second tube body and is locked or unlocked with the second tube body, the first locking sleeve is connected with the second locking sleeve, the second locking sleeve comprises a first protruding portion, a deformation portion and a second protruding portion, the deformation portion is fixedly connected with the first protruding portion and the second protruding portion respectively, the locking assembly comprises an elastic member, a guide member and a rotating member, the two ends of the elastic member are abutted with the first protruding portion and the second protruding portion respectively, the guide member is connected with the first protruding portion, the guide member is provided with a clamping groove, the clamping groove is located on the side of the second protruding portion away from the first protruding portion, and the rotating member is rotatably installed on the first protruding portion, by clamping the rotating member into the clamping groove or separating the rotating member from the clamping groove, the second locking sleeve is tightened or unlocked with the second tube body, compared with the prior art of rotating a plurality of bolts, the present application has the advantage of faster locking or unlocking the telescopic tube body. BRIEF DESCRIPTION OF DRAWINGS

[0016] These and / or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings in which:

[0017] Figure 1 Fig. 1 shows a structural schematic diagram of a locking structure of a telescopic supporting leg according to the prior art;

[0018] Figure 2 Fig. 2 shows a schematic diagram of a locking structure of a telescopic supporting leg of a tripod according to the present application, which is sleeved on a telescopic tube combination;

[0019] Figure 3 Fig. 3 shows a structural schematic diagram of a locking structure of a telescopic supporting leg of a tripod according to the present application at a certain angle;

[0020] Figure 4 Fig. 4 shows a structural schematic diagram of a locking structure of a telescopic supporting leg of a tripod according to the present application at another angle. DETAILED DESCRIPTION

[0021] The terms and words used in the following description and claims are not limited to the literal meanings and are used only by the inventors to enable a clear and consistent understanding of the application. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present application are provided for illustration purpose only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

[0022] It is understood that the term "one" should be understood as "at least one" or "one or more" such that a quantity of an element can be either one or more, in one embodiment, the quantity of an element may

[0023] Although ordinal numbers such as "first," "second," etc., will be used to describe various components, the components are not limited by the ordinal numbers. The ordinal numbers are used merely to distinguish one component from another. For example, a first component could be named a second component, and similarly, a second component could be named a first component without departing from the teachings of the present inventive concept. The term "and / or" used herein includes any and all combinations of one or more associated listed items.

[0024] The terms used herein are merely used to describe various embodiments and are not intended to limit. As used herein, the singular form is intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "has," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or a combination thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0025] The locking structure of the illustrative tripod telescopic supporting leg, refer to Figures 2 to 4 , according to a preferred embodiment of the present application, a locking structure of a tripod telescopic supporting leg, is sleeved on a telescopic pipe combination, as shown in Figure 2 , the telescopic pipe combination includes a first pipe body 101 and a second pipe body 102, the first pipe body 101 is sleeved on the second pipe body 102, and the second pipe body 102 is slidable along the axial direction of the first pipe body 101. Specifically, the first pipe body 101 has a sliding hole 1011, and the second pipe body 102 is slidingly arranged in the sliding hole 1011.

[0026] Further, as shown in Figure 2 and Figure 3As shown, the locking structure of the telescopic supporting leg of the tripod comprises a locking sleeve assembly 20 and a locking assembly 30. The locking sleeve assembly 20 comprises a first locking sleeve 201 and a second locking sleeve 202. The first locking sleeve 201 is fixedly sleeved on the first pipe body 101, and the second locking sleeve 202 is sleeved on the second pipe body 102. The second locking sleeve 202 is locked or released from the second pipe body 102 by the locking assembly 30. The first locking sleeve 201 is connected with the second locking sleeve 202. When the second locking sleeve 202 locks the second pipe body 102, the relative position of the first pipe body 101 and the second pipe body 102 is fixed, and the height of the telescopic leg is constant. When the second locking sleeve 202 releases the second pipe body 102, the second pipe body 102 can slide along the axis of the first pipe body 101 to adjust the height of the telescopic leg.

[0027] Specifically, to selectively lock the second pipe body 102 by the second locking sleeve 202, as shown in Figure 2 and Figure 3 the second locking sleeve 202 comprises a first extending portion 2021, a deformation portion 2022 and a second extending portion 2023. The deformation portion 2022 is fixedly connected with the first extending portion 2021 and the second extending portion 2023 on both sides. In addition, the locking assembly 30 comprises an elastic member 301, a guide member 302 and a rotating member 303. The two ends of the elastic member 301 are respectively abutted with the first extending portion 2021 and the second extending portion 2023. The guide member 302 is connected with the first extending portion 2021, and the guide member 302 has a clamping groove 3021 located on the side of the second extending portion 2023 away from the first extending portion 2021. The rotating member 303 is rotatably installed on the first extending portion 2021. When the rotating member 303 rotates, the rotating member 303 is clamped into or separated from the clamping groove 3021. When the rotating member 303 is clamped into the clamping groove 3021, the elastic member 301 is in a compressed and deformed state, and the rotating member 303 is abutted with the side of the second extending portion 2023 away from the first extending portion 2021. It should be noted that the first locking sleeve 201 is only fixedly connected with the region of the second locking sleeve 202 close to the first extending portion 2021 in the form of welding. The first locking sleeve 201 is used to fix the position of the second locking sleeve 202 relative to the first pipe body 1011. By fixing the first locking sleeve 201 only in the region close to the first extending portion 2021 of the second locking sleeve 202, the region of the second locking sleeve 202 close to the second extending portion 2023 is deformed under stress.

[0028] It should be noted that by fixing the first lock sleeve 201 and the first pipe body 101, the relative position of the locking sleeve combination 20 relative to the first pipe body 101 is fixed; when the height of the support leg needs to be adjusted, the user only needs to rotate the rotating piece 303 upwards, the rotating piece 303 is separated from the clamping groove 3021, and the second extending part 2023 is no longer blocked, the second extending part 2023 moves a predetermined distance away from the first extending part 2021 under the elastic force of the elastic piece 301, at this time, the deformed part 2022 is not completely fitted with the second pipe body 102, and the user can freely pull out the second pipe body 102 by a predetermined length upwards, when the second pipe body 102 is extended to a predetermined position, the user can reversely rotate the rotating piece 303, and make the rotating piece 303 enter the clamping groove 3021 again, in the process of pressing the rotating piece 303 into the clamping groove 3021, the rotating piece 303 exerts a force on the second extending part 2023, and makes the second extending part 2023 move a predetermined distance away from the first extending part 2021, and compresses the elastic piece 301, with further pressing the rotating piece 303, and making the rotating piece 303 enter the clamping groove 3021, the elastic piece 301 is compressed to the shortest length, and under the elastic force of the elastic piece 301, the second extending part 2023 is tightly attached to the side wall of the rotating piece 303, and at this time, the deformed part 2022 is smaller in radial dimension due to the second extending part 2023 moving away from the first extending part 2021, and tightly clamps the second pipe body 102, so as to fix the relative position of the second pipe body 102 and the first pipe body 101. It is easy to see that compared with the need to rotate a plurality of bolts in the prior art, the rotating piece 303 only needs to be rotated to lift or press down, so as to realize the adjustable or fixed relative position of the second pipe body 102 and the first pipe body 101. This action is simple and fast, and has the advantage of faster locking or unlocking of the telescopic pipe body.

[0029] Further, in order to install the elastic piece 301 between the first extending part 2021 and the second extending part 2023, as shown in Figure 4 The second extending part 2023 has a through hole 20231, one end of the guide piece 302 is fixedly connected with the first extending part 2021, and the fixed connection mode includes but is not limited to welding, the other end of the guide piece 302 passes through the through hole 20231 and extends a predetermined distance, the end of the guide piece 302 away from the first extending part 2021 has the clamping groove 3021, the elastic piece 301 is a spring, and the elastic piece 301 is sleeved on the guide piece 302.

[0030] In addition, to avoid the second extension 2023 interfering with the wall of the through hole 20231 when moving in a direction away from the first extension 2021, as shown in Figure 4 the diameter of the through hole 20231 is greater than the maximum radial dimension of the guide 302.

[0031] Further, to enable the rotating member 303 to exert a force on the second extension 2023 to move in the direction of the first extension 2021 when the rotating member 303 is pressed down, as shown in Figure 4 the top of the second extension 2023 has a first guide slope 20232, which is located on the side of the second extension 2023 away from the first extension 2021, as shown in Figure 3 the rotating member 303 has a second guide slope 3031, and when the rotating member 303 is above the second extension 2023, the projection of the second guide slope 3031 in the height direction overlaps the first guide slope 20232.

[0032] It should be noted that when the rotating member 303 is disengaged from the clamping groove 3021, the second extension 2023 moves a predetermined distance in the direction away from the first extension 2021, and the rotating member 303 is above the second extension 2023. When the second pipe body 102 is adjusted to a designated position, the user rotates and approaches the clamping groove 3021 by pressing down the rotating member 303, the second guide slope 3031 contacts the first guide slope 20232, and further pressing down the rotating member 303, the rotating member 303 exerts a force on the second extension 2023 to move in the direction of the first extension 2021, until the rotating member 303 is further pressed down, and the planar portion of the side surface of the rotating member 303 abuts against the planar portion of the side surface of the second extension 2023, at this time, the deformed portion 2022 tightens the second pipe body 102.

[0033] Further, to enable the rotating member 303 to rotate and be installed on the first extension 2021, the locking assembly 30 further comprises an extension member 304, the rotating member 303 is rotatably installed on the first extension 2021 through the extension member 304, one end of the extension member 304 is fixedly connected with the first extension 2021, and the fixed connection manner includes but is not limited to welding, the other end of the extension member 304 is rotatably connected with the rotating member 303 through a pin shaft.

[0034] Further, to achieve that the first lock sleeve 201 is fixed on the first pipe body 101, the first lock sleeve 201 comprises a third extending part 2011, an arc-shaped part and a fourth extending part 2012, the arc-shaped part is fixedly connected with the third extending part 2011 and the fourth extending part 2012 respectively, the third extending part 2011 and the fourth extending part 2012 are both provided with a threaded hole, the locking structure of the telescopic supporting leg of the tripod further comprises a bolt 2013, the bolt 2013 is screwed into the threaded holes of the third extending part 2011 and the fourth extending part 2012, and the arc-shaped part is tightened around the first pipe body 101, and it is necessary to supplement that the inner diameter of the arc-shaped part of the first lock sleeve 201 is larger than the inner diameter of the deformed part of the second lock sleeve 202.

[0035] In summary, the locking structure of the telescopic supporting leg of the tripod based on the embodiments of the present application is illustrated, which provides the advantages of faster locking or loosening of the telescopic pipe body and the like for the locking structure of the telescopic supporting leg of the tripod.

[0036] It is worth mentioning that in the embodiments of the present application, the locking structure of the telescopic supporting leg of the tripod is simple in structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for the manufacturers, the locking structure of the telescopic supporting leg of the tripod provided by the present application is easy to produce and low in cost, which is more conducive to controlling the production cost and further conducive to the promotion and use of the product.

[0037] Those skilled in the art should understand that the embodiments of the utility model shown in the above description and the drawings are only taken as examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been shown and explained in the embodiments, and the embodiments of the utility model can have any deformation or modification without departing from the principle.

Claims

1. A locking structure of a telescopic supporting leg of a tripod, which is sleeved on a telescopic tube assembly, the telescopic tube assembly comprising a first tube body and a second tube body, the first tube body being sleeved on the second tube body, characterized in that: The locking structure of the telescopic supporting leg of the tripod comprises a locking sleeve assembly, the locking sleeve assembly comprises a first locking sleeve and a second locking sleeve, the first locking sleeve is fixedly sleeved on the first pipe body, the second locking sleeve is sleeved on the second pipe body, and the second locking sleeve locks or releases the second pipe body, the first locking sleeve is connected with the second locking sleeve, the second locking sleeve comprises a first extending portion, a deformation portion and a second extending portion, and the deformation portion is fixedly connected with the first extending portion and the second extending portion on two sides thereof; and a locking assembly, the locking assembly comprises an elastic member, a guide member and a rotating member, two ends of the elastic member are respectively abutted against the first extending portion and the second extending portion, the guide member is connected with the first extending portion, the guide member has a clamping groove, the clamping groove is located on a side of the second extending portion away from the first extending portion, and the rotating member is rotatably installed on the first extending portion, when the rotating member rotates, the rotating member is clamped into or separated from the clamping groove, when the rotating member is clamped into the clamping groove, the elastic member is in a compressed and deformed state, and the rotating member is abutted against a side of the second extending portion away from the first extending portion.

2. The locking structure of a telescopic supporting leg of a tripod according to claim 1, characterized in that: The second extending portion has a through hole, one end of the guide member is fixedly connected with the first extending portion, the other end of the guide member passes through the through hole and extends by a predetermined distance, the end of the guide member away from the first extending portion has the clamping groove, and the elastic member is a spring and is sleeved on the guide member.

3. The locking structure of a telescopic supporting leg of a tripod according to claim 2, characterized in that: The diameter of the through hole is greater than the maximum radial dimension of the guide member.

4. The locking structure of the telescopic supporting leg of the tripod according to any one of claims 1-3, characterized in that: The top of the second extending portion has a first guide inclined surface, the first guide inclined surface is located on a side of the second extending portion away from the first extending portion, the rotating member has a second guide inclined surface, and when the rotating member is located above the second extending portion, the projection of the second guide inclined surface in the height direction overlaps the first guide inclined surface.

5. The locking structure of a telescopic supporting leg of a tripod according to claim 4, characterized in that: The locking assembly further comprises an extension member, the rotating member is rotatably installed on the first extending portion through the extension member, one end of the extension member is fixedly connected with the first extending portion, and the other end of the extension member is rotatably connected with the rotating member.

6. The locking structure of a telescopic supporting leg of a tripod according to claim 5, characterized in that: The first locking sleeve comprises a third extending portion, an arc-shaped portion and a fourth extending portion, the arc-shaped portion is fixedly connected with the third extending portion and the fourth extending portion on two sides thereof, the third extending portion and the fourth extending portion each have a threaded hole, and the locking structure of the telescopic supporting leg of the tripod further comprises a bolt, the bolt is screwed into the threaded holes of the third extending portion and the fourth extending portion, and the arc-shaped portion clamps the first pipe body.

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