CN220269040U - A kind of leg assembly and tripod - Google Patents

Abstract

The utility model relates to a leg assembly and a tripod. The leg assembly includes a first pipe fitting, a second pipe fitting, a third pipe fitting, an outer pipe fitting, a first locking assembly and a second locking assembly. The upper end of the second pipe fitting The upper end of the third pipe passes through the lower end of the second pipe and is slidably received in the second pipe. , the outer pipe is surrounded by the outer periphery of the second pipe, and the upper end of the outer pipe is sleeved on the first pipe, and the lower end of the outer pipe is sleeved on the third pipe, and the first lock The tightening assembly is located in the outer pipe, installed at the lower end of the first pipe, and sleeved on the second pipe. The utility model synchronously unlocks or locks the first locking assembly and the second locking assembly by rotating the outer pipe member, thereby realizing the synchronous unlocking or locking of the first pipe member, the second pipe member and the third pipe member, and the operation is simple , simplified structure, easy to operate and portable.

Description

A kind of leg assembly and tripod

Technical field

The utility model relates to the technical field of photographic equipment, in particular to a leg assembly and a tripod.

Background technique

A tripod is a conventionally known commonly used support structure that uses three support legs to provide a stable and reliable support platform for other equipment. Although one of the most common applications is as a stand for equipment such as cameras, tripods have many potential applications. For example, tripods can also be used to support laser sights for surveying, cameras for photography, telescopes for sky observation, and more.

In order to assist shooting and achieve good shooting effects, the legs of the tripod have a telescopic function to adjust the shooting height of the camera. However, in the existing technology, the adjustment structure of the legs of the tripod is relatively complicated, takes up a relatively large space, and is still very inconvenient to carry.

Utility model content

The main purpose of the utility model is to propose a leg assembly to solve the technical problems of complex structure, large space occupation, and inconvenience to carry.

In order to achieve the above purpose, the present utility model proposes a support leg assembly, which includes:

The first pipe fitting;

a second pipe member, the upper end of the second pipe member passes through the lower end of the first pipe member and is slidably accommodated in the first pipe member;

A third pipe, the upper end of the third pipe passes through the lower end of the second pipe and is slidably accommodated in the second pipe;

An outer pipe fitting, the outer pipe fitting is surrounded by the outer periphery of the second pipe fitting, and the upper end of the outer pipe fitting is sleeved on the first pipe fitting, and the lower end of the outer pipe fitting is sleeved on the third pipe fitting;

A first locking component, the first locking component is located in the outer pipe, is installed at the lower end of the first pipe, and is sleeved on the second pipe; and

a second locking component, the second locking component is installed on the lower end of the outer pipe and the lower end of the second pipe, and is sleeved on the third pipe;

Wherein, when the outer pipe is rotated in the first direction, the first locking assembly locks the first pipe and the second pipe, and at the same time the second locking assembly locks the second and third pipes. , when the outer pipe is rotated in the second direction, the first locking component unlocks the first and second pipes, and at the same time, the second locking component unlocks the second and third pipes.

In some embodiments, the first locking assembly includes a first driving member that is engaged with the outer pipe member, a first spring sleeve that is sleeved on the second pipe member, and a first elastic sleeve that is fixedly connected to the first pipe member. The first pressing member at the lower end of the outer pipe member drives the first driving member to rotate when it rotates in the first direction. When the first driving member rotates, it drives the first elastic sleeve to move axially upward, thereby The first pressing member presses the first elastic sleeve on the second pipe member.

In some embodiments, the outer diameter of the first elastic sleeve gradually becomes smaller from the lower end to the upper end, and the first pressing member is provided with a first slot that matches the first elastic sleeve, and the The internal thread of the upper end of the first driving member is connected to the external thread of the first pressing member, the lower end of the first driving member is connected to the lower end of the first elastic sleeve, and the first elastic sleeve is located at inside the first driving member.

In some embodiments, the inner wall of the outer pipe is axially recessed with a chute, and the outer wall of the moving member is provided with a convex block. The convex block is slidably accommodated in the chute, so that the first driving member can It can move axially along the outer tube, but cannot rotate circumferentially.

In some embodiments, the second locking assembly includes a second driving member, a second elastic sleeve sleeved on the third pipe member, and a second pressing member fixedly connected to the lower end of the second pipe member. member, the second driving member is fixedly connected to the lower end of the outer pipe member. When the outer pipe member rotates in the first direction, it drives the second driving member to rotate. When the second driving member rotates, it drives the third driving member. The second elastic sleeve moves axially upward, so that the second pressing member presses the second elastic sleeve on the third pipe member.

In some embodiments, the outer diameter of the second elastic sleeve gradually becomes smaller from the lower end to the upper end, and the second pressing member is provided with a second slot that matches the second elastic sleeve. The internal thread of the second driving member is connected to the external thread of the second pressing member, the lower end of the second driving member is connected to the lower end of the second elastic sleeve, and the second elastic sleeve is located on the inside the second driving member.

In some embodiments, the external thread of the second driving member is threaded with the internal thread of the lower end of the outer pipe member, and the external thread of the second driving member is also screwed with a limiting ring to adjust the second driving member. The length of the piece extends beyond the outer tube piece.

In some embodiments, a locking ring is set around the lower end of the outer pipe. The locking ring is fixedly sleeved on the outer wall of the lower end of the outer pipe. The limiting ring is connected with the locking ring. When the rings are in contact, the second driving member is locked on the outer pipe member so that the second driving member cannot rotate circumferentially relative to the outer pipe member.

In some embodiments, two anti-slip plates are provided on both sides of the first end of the second pipe member; and/or two anti-slip plates are provided on both sides of the upper end of the third pipe member.

The utility model also provides a tripod. The tripod includes a mounting base and a leg assembly as described above. The first pipe member of the leg assembly is rotatably connected to the mounting base.

Compared with the structure of the leg assembly in the related art, in the leg assembly of the present utility model, the user manually rotates the outer pipe fitting, and when the outer pipe fitting rotates in the first direction, the first locking assembly locks the first pipe fitting and the second pipe fitting. The first pipe member and the second pipe member cannot move relative to each other, and the second locking assembly locks the second pipe member and the third pipe member so that the second pipe member and the third pipe member cannot move relative to each other; when the outer pipe member rotates in the second direction, the first pipe member The locking assembly unlocks the first pipe member and the second pipe member so that the first pipe member and the second pipe member can move relative to each other to adjust the protruding length between the first pipe member and the second pipe member, while the second locking assembly unlocks the second pipe member and the second pipe member. Three pipe fittings, so that the second pipe fitting and the third pipe fitting can move relatively to adjust the protruding length between the second pipe fitting and the third pipe fitting, so that the user can lock the first pipe fitting, the second pipe fitting and the third pipe fitting simultaneously by rotating the outer pipe fitting , or unlock to adjust the telescopic length between the three, thereby adjusting the length of the leg assembly. It is easy to operate, has a simple and compact structure, and is easy to carry.

Description of drawings

Figure 1 is a schematic structural diagram of a leg assembly according to an embodiment of the present utility model;

Figure 2 is an exploded structural diagram of the leg assembly according to the embodiment of the present utility model;

Figure 3 is a cross-sectional view of a partial structure of the leg assembly according to the embodiment of the present invention;

Figure 4 is an enlarged view of point A in Figure 3;

Figure 5 is an enlarged view of point B in Figure 3.

Explanation of reference numbers:

First pipe fitting 1;

Second pipe fitting 2;

third pipe fitting 3;

Outer pipe fitting 4; cap 41; limiting ring 42;

The first locking component 5; the first driving member 51; the first elastic sleeve 52; the first pressing member 53; the first slot 531;

second locking component 6; second driving member 61; second elastic sleeve 62; second pressing member 63; second slot 631;

Anti-slip piece 7;

Locking ring 8.

Detailed ways

The solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model. It should be noted that the descriptions involving “first”, “second”, etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the indicated technical features. quantity.

In view of the technical defects existing in the related technology, as shown in Figures 1 and 2, the leg assembly provided in this embodiment includes:

First pipe fitting 1;

the second pipe 2, the upper end of the second pipe 2 passes through the lower end of the first pipe 1 and is slidably accommodated in the first pipe 1;

The third pipe 3, the upper end of the third pipe 3 passes through the lower end of the second pipe 2 and is slidably accommodated in the second pipe 2;

The outer pipe fitting 4 surrounds the outer periphery of the second pipe fitting 2, and the upper end of the outer pipe fitting 4 is sleeved on the first pipe fitting 1, and the lower end of the outer pipe fitting 4 is sleeved on the third pipe fitting 3;

The first locking component 5 is located in the outer pipe 4 and is installed at the lower end of the first pipe 1 and sleeved on the second pipe 2; and

The second locking component 6 is installed on the lower end of the outer pipe 4 and the lower end of the second pipe 2, and is sleeved on the third pipe 3;

Among them, the user manually rotates the outer pipe 4. When the outer pipe 4 rotates in the first direction, the first locking assembly 5 locks the first pipe 1 and the second pipe 2 so that the first pipe 1 and the second pipe 2 cannot move relative to each other. At the same time, the second locking component 6 locks the second pipe 2 and the third pipe 3 so that the second pipe 2 and the third pipe 3 cannot move relative to each other; when the outer pipe 4 rotates in the second direction, the first locking component 5 unlocks the second pipe 2 and the third pipe 3. A pipe 1 and a second pipe 2, so that the first pipe 1 and the second pipe 2 can move relative to each other to adjust the protruding length between the first pipe 1 and the second pipe 2, while the second locking assembly 6 unlocks the second pipe 2 and the third pipe member 3, so that the second pipe member 2 and the third pipe member 3 can move relative to each other to adjust the protruding length between the second pipe member 2 and the third pipe member 3, so that the user can realize the first pipe member 1, The second pipe 2 and the third pipe 3 are locked or unlocked at the same time to adjust the telescopic length between the three, thereby adjusting the length of the leg assembly. It is easy to operate, has a simple and compact structure, and is easy to carry. Therefore, if you need to adjust the length of the leg assembly, you can turn the outer pipe 4 to unlock it, and then lock it for use after adjustment.

The first direction and the second direction are opposite directions, one of them is clockwise, and the other one is counterclockwise. The upper end of the outer pipe 4 is provided with a cap 41 . The cap 41 is screwed to the upper end of the outer pipe 4 and sleeved on the first pipe 1 . The first pipe member 1, the second pipe member 2 and the third pipe member 3 may be made of carbon fiber. After the leg assembly is stored, the first pipe fitting 1 slides into the outer pipe fitting 4, the second pipe fitting 2 slides into the first pipe fitting 1, the third pipe fitting 3 slides into the second pipe fitting 2, and the outer pipe fitting 4, the first pipe fitting 1, and the third pipe fitting 2 slide into the outer pipe fitting 4. Both the second pipe fitting 2 and the third pipe fitting 3 are hollow pipes, which are easy to store and carry.

In some optional examples, the first locking assembly 5 includes a first driving member 51 that is engaged with the outer pipe member 4 , a first spring sleeve 52 that is sleeved on the second pipe member 2 , and a first elastic sleeve 52 that is fixedly connected to the first pipe member 1 . The first pressing member 53 at the lower end drives the first driving member 51 to rotate when the outer pipe member 4 rotates in the first direction. When the first driving member 51 rotates, it drives the first elastic sleeve 52 to move axially upward, thereby first compressing the first pressing member 53. The member 53 gradually presses the first elastic sleeve 52 on the second pipe member 2. Because the first driving member 51 is engaged with the inner wall of the outer pipe member 4, when the first driving member 51 of the outer pipe member 4 rotates, it drives the first driving member 51 to rotate together. When the outer pipe member 4 rotates in the second direction, it drives the first driving member 51 to rotate. When the first driving member 51 rotates, it drives the first elastic sleeve 52 to move axially downward, so that the first pressing member 53 gradually releases the first pressing member 53. The first elastic sleeve 52 releases the second pipe member 2 .

As shown in Figures 2 to 4, the outer diameter of the first elastic sleeve 52 gradually becomes smaller from the lower end to the upper end. The first pressing member 53 is provided with a first slot 531 that matches the first elastic sleeve 52. The internal thread at the upper end of a driving member 51 is connected to the external thread of the first pressing member 53. The lower end of the first driving member 51 is connected to the lower end of the first elastic sleeve 52, and the first elastic sleeve 52 is located on the first driving member. 51, the second pipe member 2 all penetrates the first driving member 51, the first elastic sleeve 52 and the first pressing member 53, and the structure is simple. The first elastic sleeve 52 includes a sleeve body, which is hollow in the middle. The sleeve body can be provided with a number of rows of seams extending to the upper end and/or the lower end to produce elastic deformation and tighten or loosen the second pipe member 2. A cartridge sleeve 52 can be made of plastic or alloy. The first clamping slot 531 formed in the first pressing member 53 is spatially fixed. When the first elastic sleeve 52 enters the first clamping slot 531, the outer wall of the first elastic sleeve 52 gradually thickens, so that the groove wall of the first clamping slot 531 The first elastic sleeve 52 will be squeezed, and the crack spacing of the squeezed first elastic sleeve 52 becomes smaller, so that the first elastic sleeve 52 hugs the second pipe 2 tightly.

Continuing to refer to Figures 3 and 4, the inner wall of the outer pipe member 4 is axially recessed with a chute, and the outer wall of the first driving member 51 is convexly provided with a convex block. The convex block is slidably accommodated in the chute, so that the first driving member 51 It can move axially along the outer tube 4 but cannot rotate circumferentially, so that when the first driving member 51 rotates, it drives the first elastic sleeve 52 to move axially up and down, so that the convex block of the first driving member 51 slides up and down along the slide groove.

Please refer to FIGS. 3 and 5 . The second locking assembly 6 includes a second driving member 61 , a second elastic sleeve 62 sleeved on the third pipe 3 and a third spring sleeve fixedly connected to the lower end of the second pipe 2 . The second pressing member 63 and the second driving member 61 are connected to the lower end of the outer pipe member 4. When the outer pipe member 4 rotates in the first direction, the lower end of the outer pipe member 4 drives the second driving member 61 to rotate. When the second driving member 61 rotates, The second elastic sleeve 62 is driven to move axially upward, so that the second pressing member 63 presses the second elastic sleeve 62 on the third pipe member 3; when the outer pipe member 4 rotates in the second direction, it drives the second driving member 61 to rotate. When the second driving member 61 rotates, it drives the second elastic sleeve 62 to move axially downward, so that the second pressing member 63 gradually releases the second elastic sleeve 62 , so that the second elastic sleeve 62 loosens the third pipe member 3 .

In some optional examples, continuing to refer to FIGS. 3 and 5 , the outer diameter of the second elastic sleeve 62 gradually becomes smaller from the lower end to the upper end, and the second pressing member 63 has an inner diameter matching the second elastic sleeve 62 . The second slot 631 of the second driving member 61 is connected with the external thread of the second pressing member 63, the lower end of the second driving member 61 is connected with the lower end of the second elastic sleeve 62, and the second elastic sleeve 62 Located in the second driving member 61, the third pipe member 3 all penetrates the second driving member 61, the second elastic sleeve 62 and the second pressing member 63, and has a simple structure. The second elastic sleeve 62 includes a sleeve body, which is hollow in the middle. The sleeve body can be provided with a number of slits extending to the upper end and/or the lower end to produce elastic deformation and tighten or loosen the third pipe member 3. The second bomb sleeve 62 can be made of plastic or alloy.

In some optional examples, the external thread of the second driving member 61 is threaded with the internal thread of the lower end of the outer pipe 4 , and the external thread of the second driving member 61 is also screwed with the limiting ring 42 to adjust the extension of the second driving member 61 . The length of the outer pipe 4. According to different usage requirements, the adjustable limiting ring 42 is locked in the position of the second driving member 61 to adjust the length of the second driving member 61 extending out of the lower end of the outer tube 4 . For example, after adjusting the length of the lower end of the second driving member 61 extending out of the outer pipe 4, screw the limiting ring 42 into the external thread of the second driving member 61 until the limiting ring 42 of the second driving member 61 abuts the outer pipe 4. The lower end of the outer tube 4 and the limiting ring 42 are both locked on the second driving member 61 .

In order to prevent the outer pipe member 4 from rotating relative to the second driving member 61 when unlocking or locking, a locking ring 8 is set around the lower end of the outer pipe member 4 , and the locking ring 8 is fixedly set around the outer pipe member 4 On the outer wall of the lower end, when the limiting ring 42 contacts the locking ring 8, the second driving member 61 is locked on the outer pipe 4 so that the second driving member 61 cannot rotate circumferentially relative to the outer pipe 4, and the connection is stable.

In some optional examples, two anti-slip plates 7 are also provided on both sides of the first end of the second pipe 2; and/or

There are also two anti-slip plates 7 on both sides of the upper end of the third pipe fitting 3. The anti-slip plates 7 allow the second pipe fitting 2 to slide with the first pipe fitting 1 and the third pipe fitting 3 with damping and smooth operation. The anti-slip plates 7 can be connected with the third pipe fitting 3. The first pipe fitting 1 and the third pipe fitting 3 have a concave and convex structure. In order to achieve stable locking of the first locking component 5 and the second locking component 6, the first locking component 5 and the second locking component 6 may also be provided with rubber rings.

To sum up, during the process of unlocking the leg assembly, when the outer pipe member 4 rotates in the second direction, the groove wall of the chute in the outer pipe member 4 pushes the convex block of the first driving member 51 to rotate, and the first driving member 51 circumferentially When rotating, the internal thread of the first driving member 51 and the external thread of the first pressing member 53 are screwed out, causing the first driving member 51 to move axially downward to drive the first elastic sleeve 52 to further extend out of the first slot 531. The inner groove wall of the first clamping groove 531 gradually loosens the first elastic sleeve 52 until the first elastic sleeve 52 loosens the second pipe fitting 2, so that the second pipe fitting 2 can slide within the first pipe fitting 1, and the first pipe fitting 1 is unlocked. and second pipe fitting 2;

At the same time, when the outer pipe 4 rotates in the second direction, the lower end of the outer pipe 4 drives the second driving member 61 to rotate. When the second driving member 61 rotates, the internal thread of the second driving member 61 and the external thread of the second pressing member 63 The screw is pulled out to drive the second elastic sleeve 62 to move axially downward to drive the second elastic sleeve 62 to further extend out of the second clamping groove 631. The inner groove wall of the second clamping slot 631 gradually releases the second elastic sleeve 62 to the second elastic sleeve. The sleeve 62 loosens the third pipe part 3 so that the third pipe part 3 can slide inside the second pipe part 2 and unlocks the third pipe part 3 and the second pipe part 2 .

During the locking process of the leg assembly, when the outer pipe 4 rotates in the first direction, the groove wall of the chute in the outer pipe 4 pushes the convex block of the first driving member 51 to rotate. When the first driving member 51 rotates circumferentially, the first driving member 51 rotates. The internal thread of the driving member 51 is screwed into the external thread of the first pressing member 53, so that the first driving member 51 moves axially upward to drive the first elastic sleeve 52 further into the first slot 531. The inner groove wall squeezes the first elastic sleeve 52 until the first elastic sleeve 52 hugs the second pipe fitting 2, so that the second pipe fitting 2 cannot slide within the first pipe fitting 1, locking the first pipe fitting 1 and the second pipe fitting 2;

At the same time, when the outer pipe 4 rotates in the first direction, the lower end of the outer pipe 4 drives the second driving member 61 to rotate. When the second driving member 61 rotates, the internal thread of the second driving member 61 and the external thread of the second pressing member 63 Screw in to drive the second elastic sleeve 62 to move axially upward to drive the second elastic sleeve 62 further into the second clamping groove 631 , and the inner groove wall of the second clamping slot 631 squeezes the second elastic sleeve 62 to the second elastic sleeve 62 Hold the third pipe 3 tightly so that the third pipe 3 cannot slide within the second pipe 2, and lock the third pipe 3 and the second pipe 2.

The utility model also provides a tripod. The tripod includes a mounting base and the above-mentioned leg assembly. The first pipe member of the leg assembly is rotatably connected to the mounting base.

What is described above is only part or preferred embodiments of the present utility model. Neither the text nor the drawings can limit the scope of protection of the present utility model. Anyone who uses the description of the utility model under the overall concept of the present utility model can Equivalent structural transformations made based on the contents of the drawings, or direct/indirect application in other related technical fields are included in the scope of protection of the present utility model.

Claims (10)

1. A leg assembly, comprising:

a first pipe fitting;

a second pipe member having an upper end portion passing through a lower end portion of the first pipe member and slidably received in the first pipe member;

a third pipe fitting, the upper end of which passes through the lower end of the second pipe fitting and is slidingly accommodated in the second pipe fitting;

the outer pipe fitting surrounds the periphery of the second pipe fitting, the upper end part of the outer pipe fitting is sleeved on the first pipe fitting, and the lower end part of the outer pipe fitting is sleeved on the third pipe fitting;

the first locking component is positioned in the outer pipe fitting, is arranged at the lower end part of the first pipe fitting and is sleeved on the second pipe fitting; and

the second locking component is arranged at the lower end part of the outer pipe fitting and the lower end part of the second pipe fitting and sleeved on the third pipe fitting;

the outer pipe fitting is rotated along a first direction, the first locking component locks the first pipe fitting and the second pipe fitting, the second locking component locks the second pipe fitting and the third pipe fitting, and the first locking component unlocks the first pipe fitting and the second pipe fitting when the outer pipe fitting is rotated along a second direction, and the second locking component unlocks the second pipe fitting and the third pipe fitting.

2. The leg assembly of claim 1, wherein the first locking assembly comprises a first driving member engaged with the outer tube, a first spring sleeve sleeved on the second tube, and a first pressing member fixedly connected to a lower end of the first tube, wherein the outer tube rotates in a first direction to drive the first driving member to rotate, and the first driving member rotates to drive the first spring sleeve to move axially upward, so that the first pressing member presses the first spring sleeve on the second tube.

3. The leg assembly as claimed in claim 2, wherein the outer diameter of the first jacket is gradually reduced from the lower end to the upper end, a first clamping groove matched with the first jacket is formed in the first pressing member, an inner thread formed at the upper end of the first driving member is connected with an outer thread of the first pressing member, the lower end of the first driving member is connected with the lower end of the first jacket, and the first jacket is located in the first driving member.

4. The leg assembly as claimed in claim 2, wherein the inner wall of the outer tube member is axially concavely provided with a chute, and the outer wall of the movable member is convexly provided with a projection, and the projection is slidably received in the chute, such that the first driving member is axially movable along the outer tube member without being circumferentially rotatable.

5. The leg assembly as claimed in any one of claims 1 to 4, wherein the second locking assembly includes a second driving member, a second elastic sleeve sleeved on the third pipe member, and a second pressing member fixedly connected to a lower end portion of the second pipe member, the second driving member is fixedly connected to a lower end portion of the outer pipe member, the outer pipe member drives the second driving member to rotate when rotating in a first direction, and the second elastic sleeve is driven to move axially upwards when rotating, so that the second pressing member presses the second elastic sleeve on the third pipe member.

6. The leg assembly as claimed in claim 5, wherein the outer diameter of the second jacket is gradually reduced from the lower end to the upper end, the second pressing member is provided therein with a second clamping groove matched with the second jacket, the second driving member is provided with an internal thread connected with the external thread of the second pressing member, the lower end of the second driving member is connected with the lower end of the second jacket, and the second jacket is positioned in the second driving member.

7. The leg assembly of claim 5, wherein the external threads of the second driver are threadably coupled to the internal threads of the lower end of the outer tube, and wherein the external threads of the second driver are further threadably coupled to a stop collar to adjust the length of the second driver extending out of the outer tube.

8. The leg assembly as claimed in claim 7, wherein a locking ring is further sleeved on the outer periphery of the lower end portion of the outer tube, the locking ring is fixedly sleeved on the outer wall of the lower end of the outer tube, and the second driving member is locked on the outer tube when the limiting ring abuts against the locking ring, so that the second driving member cannot rotate circumferentially relative to the outer tube.

9. The leg assembly as claimed in claim 1, wherein two sides of the first end of the second tube member are further provided with two sliding stoppers; and/or

Two sides of the upper end of the third pipe fitting are also provided with two sliding-stopping sheets.

10. A tripod comprising a mount and a leg assembly as claimed in any one of claims 1 to 9, wherein a first tube of the leg assembly is rotatably connected to the mount.