WO2021249348A1

WO2021249348A1 - Tripod

Info

Publication number: WO2021249348A1
Application number: PCT/CN2021/098653
Authority: WO
Inventors: 单景华; 彭易兵
Original assignee: 源德盛塑胶电子（深圳）有限公司
Priority date: 2020-06-10
Filing date: 2021-06-07
Publication date: 2021-12-16
Also published as: CN212617357U

Abstract

A tripod, comprising: a fixing base (100); a main rod (300) movably connected to the fixing base (100); three supporting leg assemblies (200) hinged to the fixing base (100) and used for supporting the fixing base (100); linkage rods (400), one end of each linkage rod (400) being hinged to the supporting leg assembly (200), and the other end of each linkage rod being hinged to the main rod (300); and a locking mechanism (500) connected to the main rod (300); when the tripod is collapsed, the supporting leg assemblies (200) are connected to the locking mechanism (500), and the locking mechanism (500) is used for locking and fixing at least one supporting leg assembly (200) on the locking mechanism (500); and after the tripod is collapsed, the supporting leg assemblies (200) are automatically locked.

Description

A tripod

Technical field

The invention relates to the technical field of photographic equipment, in particular to a tripod.

Background technique

In daily life, more and more people like photography hobby; at the same time, photography auxiliary equipment has also been more and more used.

The tripod is used to support cameras and other equipment. The tripod can usually be folded or folded when not in use to reduce the space occupied by the tripod and enhance its portability. The most common way is to place the three legs of the tripod on the tripod. The fixed seat in the center is folded, however, the outriggers are generally mounted on the fixed seat by hinges. After being folded, each outrigger will open again during the process of carrying and shaking, and the stability is not high.

technical problem

The purpose of the present invention is to provide a tripod that can be folded and automatically locked to the legs.

Technical solutions

The invention discloses a tripod, comprising a fixing base; a main rod movably connected to the fixing base; three leg assemblies respectively hinged to the fixing base for supporting the fixing base; a linkage rod, the linkage One end of the rod is hinged with the foot assembly, and the other end is hinged with the main rod; and a locking mechanism connected with the main rod, when the tripod is folded, the foot assembly is connected with the locking mechanism, The locking mechanism is used for locking and fixing at least one of the supporting leg components with the locking mechanism.

Optionally, the locking mechanism includes a locking seat and a movable block arranged inside the locking seat, the movable block is provided with a lock bolt, and the lock bolt protrudes or is hidden in the locking seat On the upper surface of the, the leg assembly includes a leg, and a lock hole is provided at the bottom of the leg, and when the lock pin protrudes from the lock seat, the lock pin is matched with the lock hole.

Optionally, the lock bolt protrudes from the upper surface of the lock seat from the inside of the lock seat, and the movable block on the other side of the lock bolt is provided with abutment The first elastic member of the movable block.

Optionally, a boss is provided on the movable block, and the boss abuts against the locking seat, the locking mechanism further includes an unlocking button, and the locking bolt and the unlocking button are respectively located on the At both ends of the boss, the unlocking button abuts against the bottom of the movable block away from the lock bolt.

Optionally, the movable block is provided with three, respectively corresponding to the positions of the three legs, are provided in the locking seat, the unlocking button is located in the center of the locking seat, and the unlocking button abuts against the three at the same time. Of said active blocks.

Optionally, the locking seat is provided at the bottom of the main rod, and the unlocking button is provided at the bottom of the locking seat and protrudes from the locking seat.

Optionally, the locking seat is provided with a stepped groove. The stepped groove includes a first stepped surface and a second stepped surface. The first stepped surface is higher than the second stepped surface. The stepped groove is hinged and is located on the first stepped surface, and the lock bolt penetrates through the second stepped surface.

Optionally, the leg assembly further includes a sleeve, the sleeve is disposed on the leg, a position of the sleeve facing the main rod is provided with an elastic block, the elastic block and the sleeve A second elastic member is arranged in between, and when the supporting leg is folded, the elastic block abuts against the main rod.

Optionally, the sleeve is provided on the top of the supporting leg, one end of the sleeve is connected with the supporting leg, and the other end is hinged with the fixing base.

Optionally, the locking seat is provided with an elastic block movably facing the position of the foot, and a second elastic member is arranged between the elastic block and the locking seat. When the foot is folded, the elastic block is arranged. The block abuts against the supporting leg.

Beneficial effect

The tripod can usually be folded or folded when not in use. A locking mechanism is provided on the main pole of the tripod. When the foot assembly is folded, the foot assembly is just connected to the locking mechanism, so that the foot assembly is locked and fixed on the locking mechanism. , And when the linkage rod controls the tripod folding process, the three feet are folded synchronously. You only need to lock at least one foot assembly to automatically lock the three foot assemblies at the same time to prevent accidental opening of the feet assembly. Simple and stable.

Description of the drawings

The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to exemplify the embodiments of the present invention, and together with the text description, explain the principle of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor. In the attached picture.

Fig. 1 is a schematic diagram of a tripod deployed according to an embodiment of the present invention.

Fig. 2 is a schematic view of a tripod folded according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a locking structure of an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of a locking structure according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view showing the cooperation of the supporting leg and the locking structure according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a leg assembly according to an embodiment of the present invention.

Fig. 7 is an exploded schematic view of a leg assembly according to an embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view of a leg assembly according to an embodiment of the present invention.

Fig. 9 is a schematic diagram of an embodiment of the present invention after the feet are ejected.

Among them, 100, fixed seat; 200, foot assembly; 300, main rod; 400, linkage rod; 500, locking mechanism; 510, locking seat, 520, movable block, 521, lock bolt, 530, unlocking button, 210 , Support foot; 211, keyhole; 220, sleeve; 221, elastic block; 522, boss; 540, first elastic member; 222, second elastic member; 511, stepped groove; 511a, first stepped surface; 511b , The second step surface.

The best mode of the present invention

It should be understood that the terms used here, the specific structure and function details disclosed are only for describing specific embodiments and are representative. However, the present invention can be implemented in many alternative forms and should not be interpreted as merely It is limited to the embodiments described here.

In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features; "plurality" means two or more than two. The term "comprising" and any variations thereof means non-exclusive inclusion, the possibility of the presence or addition of one or more other features, integers, steps, operations, units, components, and/or combinations thereof.

In addition, "center", "horizontal", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" The terms indicating the orientation or positional relationship are described based on the orientation or relative positional relationship shown in the drawings, which is only a simplified description for the convenience of describing the present invention, rather than indicating that the pointed device or element must have a specific orientation , It is constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention.

In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection , It can also be electrical connection; it can be directly connected, it can also be indirectly connected through an intermediate medium, or the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations.

The present invention will be further described below with reference to the drawings and optional embodiments.

As shown in Figures 1-9, the embodiment of the present invention discloses a tripod, including a fixing seat 100; The position of the fixing seat 100 on the main pole 300 can be adjusted by sliding on the main pole 300, and the main pole 300 can be set as a telescopic pole, the length of which can be adjusted, and the length can be adjusted according to the needs of use; 100 is hinged to support the three leg assemblies 200 of the fixing seat 100; a linkage rod 400, one end of the linkage rod 400 is hinged to the leg assembly 200, and the other end is hinged to the main rod 300, the linkage rod 400 The folding and opening and closing synchronization of the foot assembly 200 is realized, and the locking mechanism 500 connected to the main rod 300 is realized. When the tripod is folded, the foot assembly 200 is connected to the locking mechanism 500, and the locking The mechanism 500 is used to lock and fix at least one of the leg assemblies 200 and the locking mechanism 500.

The tripod can usually be folded or folded when not in use. A locking mechanism 500 is provided on the tripod main pole 300. When the foot assembly 200 is folded, the foot assembly 200 is just connected to the locking mechanism 500, so that the foot assembly 200 is locked. It is fixed on the locking mechanism 500, and the linkage rod 400 is in the process of controlling the folding of the tripod, and the three leg assemblies 200 are folded synchronously. Only by locking at least one leg assembly 200, the three leg assemblies 200 can be adjusted at the same time. It is automatically locked to prevent accidental opening of the foot assembly 200, with a simple structure and good stability.

As shown in Figures 1 to 5, in this embodiment, the locking mechanism 500 includes a locking seat 510 and a movable block 520 arranged inside the locking seat 510. The top of the movable block 520 is provided with The lock bolt 521 is vertically upward. The lock bolt 521 is cylindrical. The upper surface of the locking seat 510 is provided with a hole for the locking bolt 521 to pass through. Protruding or hidden on the upper surface of the locking seat 510, on the bottom of the movable block 520 on the other side of the lock bolt 521, a first elastic member 540 abutting on the movable block 520 is provided , The first elastic member 540 is a spring, and the leg assembly 200 includes a leg 210. The bottom of the leg 210 is provided with a lock hole 211 that cooperates with the lock bolt 521. The shape of the lock hole 211 is the same as that of the The shape of the lock bolt 521 is matched. When the support foot 210 is folded, the support foot 210 approaches the lock bolt 521 and presses the lock bolt 521, the spring is compressed, the lock bolt 521 moves downward, and the lock hole 211 of the support foot 210 reaches the position of the lock bolt 521. After that, the lock bolt 521 is reset into the lock hole 211 to realize the locking of the leg 210.

Specifically, as shown in FIGS. 3 to 5, the surface of the lock bolt 521 is an outer convex arc surface, and the inner surface of the lock hole 211 is correspondingly provided with an inner concave arc surface, which is convenient for the lock bolt 521 to cooperate with the lock hole 211 , Does not cause scratches on the surface. Not only that, the bottom of the leg 210 corresponds to the periphery of the lock hole 211 is also curved. The leg 210 moves to the lock pin 521 position by pressing the lock pin 521 from the side, and the leg 210 The transitional extrusion surfaces with the lock bolt 521 are all curved surfaces, so that the supporting leg 210 can enter the upper side of the lock bolt 521 more smoothly.

More specifically, the locking seat 510 is provided with a stepped groove 511, the stepped groove 511 includes a first stepped surface 511a and a second stepped surface 511b, the first stepped surface 511a is higher than the second stepped surface 511b The linkage rod 400 is hinged to the stepped groove 511 and is located on the first stepped surface 511a, and the lock bolt 521 is located on the second stepped surface 511b; after the feet 210 are opened to closed, the linkage rod 400 Tuck up with the feet 210 at the same time without interfering with each other. After the feet 210 reach the second step surface 511b, they will abut against the side of the first step surface 511a, and have a limiting effect on the feet 210, so that the feet 210 will not continue to be retracted inward. ，Accurately snap into the lock bolt 521.

As shown in Figures 4 and 5, in this embodiment, the movable block 520 is elongated, and a boss 522 is provided at the middle position of the movable block 520. The boss 522 and the lock Under the action of the spring, the position of the movable block 520 corresponding to the locking bolt 521 always keeps abutting against the locking seat 510. The locking bolt 521 protrudes from the locking seat 510, and the locking mechanism 500 further includes an unlocking button 530, the lock bolt 521 and the unlocking button 530 are respectively located at both ends of the boss 522, the unlocking button 530 abuts against the movable block 520 away from the lock bolt 521 At the bottom, when pressure is applied to the unlocking button 530, the unlocking button 530 squeezes the movable block 520 upward to make it rise. The movable block 520 rotates around the contact point between the boss 522 and the locking block, and the end corresponding to the lock bolt 521 drops accordingly. , The lock bolt 521 is separated from the lock hole 211 at the bottom of the leg 210 to unlock the leg 210. After the leg 210 is moved out and opened, the lock bolt 521 is reset due to the force of the spring.

Further, the movable block 520 is provided with three, respectively corresponding to the positions of the three supporting legs 210 are provided in the locking seat 510, and each movable block 520 corresponds to a supporting leg 210 respectively, so that the three supporting legs 210 are respectively restricted. , The unlocking button 530 is located in the center of the locking seat 510, the unlocking button 530 abuts on the three movable blocks 520 at the same time, only need to press one unlocking button 530 to unlock the three legs 210 at the same time ,Convenient.

Furthermore, the locking seat 510 is provided at the bottom of the main rod 300, the unlocking button 530 is provided at the bottom of the locking seat 510 and protruding from the locking seat 510; the unlocking button 530 is provided At the bottom end of the main pole 300, in actual use, the folded tripod is placed on the ground so that the unlocking button 530 of the locking seat 510 is in contact with the ground. At this time, the tripod is pressed down, and the ground presses the unlocking button 530 to The unlocking operation of each support foot 210 is realized without manual unlocking manually.

As shown in Figures 6-9, in this embodiment, the leg assembly 200 further includes a sleeve 220, which is hollow inside and is sleeved on the leg 210, and the sleeve 220 faces the The position of the main rod 300 is provided with an elastic block 221, and a second elastic member 222 is arranged between the elastic block 221 and the sleeve 220. The second elastic member 222 is a spring. The height of the elastic block 221 is greater than the distance between the supporting leg 210 and the main pole 300, the elastic block 221 abuts on the main pole 300, the supporting leg 210 is locked behind the lock bolt 521, and the elastic block 221 abuts Hold the main rod 300, the elastic block 221 is squeezed and moved back. At this time, the spring is in a compressed state. After pressing the unlocking button 530 to unlock the feet 210, under the action of the elastic block 221, each foot 210 pops out at a certain angle to make Each foot 210 is automatically separated from the locking seat 510. At this time, the fixed seat 100 can be continuously pressed down, and the fixed seat 100 slides down along the main rod 300. Under the action of the linkage rod 400, each foot 210 is linked to open a predetermined angle.

As shown in Figure 9, in order to achieve the best ejection effect, the sleeve 220 is arranged on the top of the leg 210, one end of the sleeve 220 is connected to the leg 210, and the other end is hinged to the fixing seat 100 , The elastic block 221 is close to the hinge joint between the supporting leg 210 and the fixing seat 100. When the elastic block 221 ejects the supporting leg 210, the force arm is shorter. A little angle can make the lower end of the supporting leg 210 have a larger displacement, so as to facilitate the leg 210 to move from The locking seat 510 pops up.

As another embodiment of the present invention, the difference from the above embodiments is that the locking seat 510 is movably provided with an elastic block 221 facing the position of the supporting leg 210, and the elastic block 221 is different from the locking seat 510. A second elastic member 222 is provided between the second elastic member 222, which is a spring. When the supporting leg 210 is folded, the height of the elastic block 221 is greater than the distance between the supporting leg 210 and the locking seat 510. 221 abuts against the supporting leg 210.

The above content is a further detailed description of the present invention in combination with specific optional embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, a number of simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

A tripod, characterized in that it comprises:

Fixed seat

The main pole is movably connected with the fixed seat;

Three leg assemblies, respectively hinged to the fixing base, for supporting the fixing base;

A linkage rod, one end of the linkage rod is hinged with the foot assembly, and the other end is hinged with the main rod; and

A locking mechanism is connected to the main rod. When the tripod is folded, the leg assembly is connected to the locking mechanism, and the locking mechanism is used to connect at least one of the leg assemblies to the locking mechanism Lock and fix.
The tripod according to claim 1, wherein the locking mechanism comprises a locking seat and a movable block arranged inside the locking seat, the movable block is provided with a lock bolt, and the lock bolt convex Out or hidden on the upper surface of the locking seat, the foot assembly includes a foot, and a lock hole is provided at the bottom of the foot. When the lock bolt protrudes from the locking seat, the lock bolt and the The keyholes are matched.
The tripod of claim 2, wherein the lock bolt protrudes from the inside of the lock seat from the upper surface of the lock seat, and is opposite to the other side of the lock bolt. The movable block is provided with a first elastic member abutting on the movable block.
The tripod according to claim 3, wherein a boss is provided on the movable block, and the boss abuts the locking seat, the locking mechanism further comprises an unlocking button, and the locking bolt The unlocking button and the unlocking button are respectively located at two ends of the boss, and the unlocking button abuts against the bottom of the movable block away from the lock bolt.
The tripod according to claim 4, characterized in that there are three movable blocks provided in the locking seat at positions corresponding to the three legs, and the unlocking button is located at the center of the locking seat, The unlocking button abuts against the three movable blocks at the same time.
The tripod according to claim 5, wherein the locking seat is provided at the bottom of the main pole, and the unlocking button is provided at the bottom of the locking seat and protrudes from the locking seat.
The tripod according to claim 2, wherein the locking seat is provided with a stepped groove, the stepped groove comprising a first stepped surface and a second stepped surface, the first stepped surface is higher than the second stepped surface A stepped surface, the linkage rod is hinged to the stepped groove and is located on the first stepped surface, and the lock bolt penetrates through the second stepped surface.
The tripod according to any one of claims 1-7, wherein the leg assembly further comprises a sleeve, the sleeve is disposed on the leg, and the sleeve is disposed toward the position of the main rod There is an elastic block, and a second elastic element is arranged between the elastic block and the sleeve. When the supporting leg is folded, the elastic block abuts against the main rod.
8. The tripod according to claim 8, wherein the sleeve is provided on the top of the supporting leg, one end of the sleeve is connected with the supporting leg, and the other end is hinged with the fixing base.
The tripod according to claim 2, wherein the locking seat is movably provided with an elastic block facing the position of the leg, and a second elastic member is provided between the elastic block and the locking seat, when When the feet are folded, the elastic block abuts against the feet.