CN114838267B

CN114838267B - Tripod with automatic leveling function

Info

Publication number: CN114838267B
Application number: CN202210321366.3A
Authority: CN
Inventors: 陆琦
Original assignee: Ningbo Weifeng Intelligent Technology Co ltd
Current assignee: Ningbo Weifeng Intelligent Technology Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2024-01-26
Anticipated expiration: 2042-03-30
Also published as: CN114838267A

Abstract

A tripod belongs to the technical field of camera shooting supporting equipment and comprises a tripod head, wherein a plurality of telescopic foot tubes are connected to the lower portion of the tripod head. Wherein, the lower part of the cradle head is also provided with a leveling component; the leveling assembly comprises a shell, a plurality of through pipes corresponding to the telescopic foot pipes are circumferentially arranged on the shell in a surrounding mode, and ventilation control pieces are arranged in the through pipes in a resettable mode; the shell is hollow to form an inner cavity, a leveling ball is arranged in the inner cavity, a leveling through hole communicated with the outside is formed in the center of the bottom wall of the inner cavity, and when the equipment is in a horizontal state, the leveling ball plugs the leveling through hole and is abutted to the ventilation control piece. Compared with the prior art, the tripod with the automatic leveling function has the advantages that the leveling function is achieved by adjusting the air pressure in each telescopic foot tube, motor driving is not needed, the whole structure is simple, the production cost is low, and compared with an existing tripod with the automatic leveling function through motor driving, the tripod with the automatic leveling function has higher cost performance.

Description

Tripod with automatic leveling function

Technical Field

The invention belongs to the technical field of camera shooting supporting equipment, and particularly relates to a tripod with an automatic leveling function.

Background

The tripod is a support frame for stabilizing the camera, and the most important function of the tripod is to provide a stable platform for the camera, so that blurring of pictures caused by camera shake during photographing is avoided. Without a good tripod, it is difficult to develop the imaging quality that a camera should have.

Leveling the tripod is a necessary operation during use. The existing tripod mainly has two leveling modes, namely manual leveling and automatic leveling, and has the defects of large leveling error and low leveling efficiency, but the tripod has a simple structure, so that the tripod has lower price and higher cost performance compared with the tripod with an automatic leveling function. Tripod leveling accuracy with automatic leveling function is high, and leveling efficiency is high, but equipment structure is complicated, and relative price is higher, and generally has drive mechanism that needs electric drive such as motor, and follow-up maintenance cost is high. An automatic leveling tripod as disclosed in the patent document of CN201410352966.1 is to realize the leveling function by a combination of a motor adjusting mechanism and a level sensor.

Thus, based on some of the above prior art, the present application is further designed and improved with respect to existing tripod apparatuses with leveling functionality.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the tripod with the automatic leveling function, the leveling function is realized by adjusting the air pressure in each telescopic leg tube, motor driving is not needed, the whole structure is simple, the production cost is low, and compared with the existing automatic leveling tripod driven by a motor, the tripod with the automatic leveling function has higher cost performance.

In order to solve the technical problems, the invention is solved by the following technical scheme.

A tripod comprises a tripod head, wherein a plurality of telescopic foot tubes are connected to the lower portion of the tripod head. The essential characteristics of the application are that:

the lower part of the tripod head is also provided with a leveling component which can automatically level the tripod. The leveling assembly comprises a shell, a plurality of through pipes corresponding to the telescopic foot pipes are circumferentially arranged on the shell in a surrounding mode, and ventilation control pieces are arranged in the through pipes in a resettable mode. The ventilation control piece is used for controlling the communication between the leveling component and the telescopic foot tube. The shell is hollow to form an inner cavity, a leveling ball is arranged in the inner cavity, a leveling through hole communicated with the outside is formed in the center of the bottom wall of the inner cavity, and when the equipment is in a horizontal state, the leveling ball plugs the leveling through hole and is abutted to the ventilation control piece.

The telescopic foot tube comprises an upper tube, a middle tube and a lower tube which are sequentially sleeved. The end part of the middle pipe is provided with an air-tight control piece and is sleeved in the upper pipe to form a closed cavity. The side of the upper pipe is provided with a connecting hose which is connected with a corresponding through pipe, so that the communication between the inner cavity and the closed cavity is realized.

In a preferred embodiment, the ventilation control member comprises an abutting block and a connecting column, wherein a ventilation channel is arranged in the ventilation control member, one end of the ventilation channel is arranged at the end part of the connecting column, and the other end of the ventilation channel is arranged in the abutting block. When the equipment is inclined, the ventilation control piece positioned on one inclined side is abutted with the leveling ball, and the leveling ball blocks the ventilation channel; the ventilation channels of the ventilation control pieces at the other two sides are smooth, and the gas in the closed cavity enters the inner cavity through the connecting hose and is discharged from the leveling through holes, so that the heights of the telescopic foot pipes at the other two sides are lowered.

In a preferred embodiment, the abutting surface of one side of the abutting block facing the leveling ball is provided with a plurality of uniformly distributed air holes, and the air holes are connected with the air passage, so that air flow can be distributed in a dispersed manner, impact force is reduced, and influence on the stress of the leveling ball is avoided.

In a preferred embodiment, the abutment surface is adapted to the surface of the leveling ball, so that gas leakage is avoided when the leveling ball abuts the abutment surface.

In a preferred embodiment, an abutting ring is arranged in the through pipe, and the connecting column can provide a moving space for the ventilation control member through the abutting ring. The connecting column is provided with an abutting step, and a reset spring is arranged between the abutting step and the abutting ring, so that the ventilation control piece can be reset, and the close abutting of the ventilation control piece and the leveling ball is ensured when the equipment is in a horizontal state.

In a preferred embodiment, the air-closing control comprises an assembly head and an air-closing cap, which is assembled on the assembly head. The assembly head is buckled at the end part of the middle pipe, a boss is arranged in the middle of the assembly head, the air closing cover can be buckled with the boss in a sealing way, and the sealing performance of the sealing cavity is ensured when the air passage is closed. The boss is provided with a through foot pipe through hole in the middle and a plurality of assembly holes around the foot pipe through hole, the lower part of the air-tight cover is provided with a plurality of sliding columns which can be correspondingly matched with the assembly holes, and the air-tight cover and the assembly head can be assembled in an axial moving way through the matching of the assembly holes and the sliding columns.

In a preferred embodiment, the end of the sliding column is provided with a limiting block, the limiting block can not pass through the assembly hole, the maximum moving stroke of the air closing cover is limited, and the sensitivity of the air closing function of the air closing cover is ensured.

In a preferred embodiment, the cradle head is provided with an operation center shaft, the leveling component is arranged at the lower end part of the operation center shaft, and the leveling component is integrated on the operation center shaft, so that the design of the integral structure of the tripod is facilitated.

In a preferred embodiment, the bottom wall of the inner cavity and the leveling through hole are coaxially provided with rubber rings, so that the inner cavity is sealed when the tripod is in a horizontal state.

In a preferred embodiment, the lower ends of the upper pipe, the middle pipe and the lower pipe are provided with locking rings, so that the telescopic foot pipe can be adjusted steplessly. The locking ring is provided with anti-slip protrusions which are arranged around the shaft collar. The lower pipe end is equipped with the foot nail, can be applicable to complicated service scenario.

Compared with the prior art, the application has the following beneficial effects: the tripod with the automatic leveling function is provided, the leveling function is realized by adjusting the air pressure in each telescopic leg tube, motor driving is not needed, the whole structure is simple, the production cost is low, and compared with the existing automatic leveling tripod driven by a motor, the tripod with the automatic leveling function has higher cost performance.

Drawings

Fig. 1 is a schematic perspective view of the present application.

Fig. 2 is a schematic plan view of the leveling assembly and the upper tube connection section.

Figure 3 is a schematic diagram of a leveling assembly in semi-section.

Fig. 4 is a schematic perspective view of the vent control.

Fig. 5 is a schematic perspective view, partially cut away, of the assembled gas-closure control.

Fig. 6 is a partial enlarged view at a in fig. 5.

The following is a description of the marks in the accompanying drawings:

1-cradle head.

2-telescoping foot tubes; 21-upper tube; 211-closing the cavity; 212-connecting a hose; 22-middle tube; 23-down tube; 231-pins; 24-locking ring; 241-cleats.

3-operating the middle shaft.

4-leveling assembly; 41-a housing; 42-through pipe; 421-abutment ring; 43-lumen; 44-leveling ball; 45-leveling the through holes; 46-a return spring; 47-rubber ring.

5-a ventilation control; 51-an abutment block; 511-an abutment surface; 512-pores; 52-connecting columns; 521-abutment steps; 53-airway.

6-an air-closing control; 61-fitting head; 611-boss; 612-foot tube through holes; 613-fitting holes; 62-closing air cap; 621-sliding column; 622-limit block.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description.

In the following embodiments, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout, and the embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms: the directions of the center, the longitudinal, the lateral, the length, the width, the thickness, the upper, the lower, the front, the rear, the left, the right, the vertical, the horizontal, the top, the bottom, the inner, the outer, the clockwise, the counterclockwise, etc. indicate the directions or the positional relationship based on the directions or the positional relationship shown in the drawings, are merely for convenience of description and simplification of the description, and therefore, should not be construed as limiting the present invention. Furthermore, the term: first, second, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of features shown. In the description of the present invention, unless explicitly specified and defined otherwise, the terms: mounting, connecting, etc. should be construed broadly and the specific meaning of the terms in the present application will be understood by those skilled in the art in view of the specific circumstances.

Referring to fig. 1 to 6.

A tripod, referring to fig. 1, comprises a tripod head 1, wherein a plurality of telescopic foot tubes 2 are connected to the lower part of the tripod head 1.

The tripod head comprises a tripod head 1, a tripod head and a leveling assembly 4, wherein the tripod head 1 is provided with an operation center shaft 3, the lower end part of the operation center shaft 3 is provided with the leveling assembly 4, and the leveling assembly 4 can automatically level a tripod. The leveling component 4 is integrated on the operation center shaft 3, so that the design of the whole tripod structure is facilitated.

Specifically, referring to fig. 2 to 4, the leveling assembly 4 described herein has a specific structure as follows: the foot tube comprises a shell 41, wherein a plurality of through tubes 42 corresponding to the telescopic foot tubes 2 are circumferentially arranged on the shell 41 in a surrounding mode, and ventilation control pieces 5 are arranged in the through tubes 42 in a resettable mode. The ventilation control member 5 is used for controlling the communication between the leveling assembly 4 and the telescopic foot tube 2. Specifically, the through pipe 42 is provided with an abutment ring 421, and the connection post 52 can provide a moving space for the ventilation control member 5 through the abutment ring 421. The shell 41 is hollow to form an inner cavity 43, a leveling ball 44 is arranged in the inner cavity 43, a leveling through hole 45 communicated with the outside is arranged in the center of the bottom wall of the inner cavity 43, and when the equipment is in a horizontal state, the leveling ball 44 blocks the leveling through hole 45 and is abutted to the ventilation control piece 5. The bottom wall of the inner cavity 43 and the leveling through hole 45 are coaxially provided with rubber rings 47, so that the inner cavity 43 is sealed when the tripod is in a horizontal state.

In particular, the ventilation control member 5 includes an abutment block 51 and a connection post 52, and an air passage 53 is provided in the ventilation control member 5, one end of the air passage 53 is provided at an end of the connection post 52, and the other end of the air passage 53 is provided in the abutment block 51. When the equipment is inclined, the ventilation control piece 5 positioned on the inclined side is abutted with the leveling ball 44, and the leveling ball 44 blocks the ventilation channel 53; the ventilation channels 53 of the ventilation control members 5 on the other two sides are unblocked, and the air in the closed cavity 211 enters the inner cavity 43 through the connecting hose 212 and is discharged from the leveling through holes 45, so that the height of the telescopic foot tubes 2 on the other two sides is lowered. The connecting post 52 is provided with an abutting step 521, and a return spring 46 is arranged between the abutting step 521 and the abutting ring 421, so that the ventilation control member 5 can be reset, and the close abutting of the ventilation control member 5 and the leveling ball 44 when the equipment is in a horizontal state is ensured. The abutting surface 511 of the abutting block 51 facing one side of the leveling ball 44 is provided with a plurality of uniformly distributed air holes 512, and the air holes 512 are connected with the air passage 53, so that air flow can be distributed in a dispersed manner, impact force is reduced, and influence on the stress of the leveling ball 44 is avoided. Wherein, the abutting surface 511 is adapted to the surface of the leveling ball 44, so as to avoid gas leakage when the leveling ball 44 abuts against the abutting surface 511.

In this embodiment, the specific structure of the telescopic leg tube 2 is as follows: comprises an upper pipe 21, a middle pipe 22 and a lower pipe 23 which are sleeved in turn. The middle tube 22 is provided with an air-closing control 6 at the end and is sleeved in the upper tube 21 to form a closed cavity 211. The side of the upper tube 21 is provided with a connecting hose 212, and the connecting hose 212 is connected with the corresponding through tube 42, so that the inner cavity 43 and the closed cavity 211 are communicated. The lower ends of the upper pipe 21, the middle pipe 22 and the lower pipe 23 are provided with locking rings 24, so that the telescopic foot pipe 2 can be subjected to stepless adjustment. The locking ring 24 is provided with cleats 241 arranged around the collar. The foot nails 231 are arranged at the end parts of the lower pipes 23, so that the device can be suitable for complex use scenes.

The present application controls the air intake and closing operation of the closed cavity 211 through the air closing control member 6, and referring to fig. 5 and 6, the specific structure thereof is as follows: the air-closing control 6 includes an assembly head 61 and an air-closing cap 62, the air-closing cap 62 being assembled on the assembly head 61. The assembly head 61 is fastened to the end of the middle tube 22, a boss 611 is provided in the middle of the assembly head 61, and the air-closing cover 62 can be fastened with the boss 611 in a sealing manner, so as to ensure the tightness of the closed cavity 211 when the air duct 53 is closed. The middle of the boss 611 is provided with a through foot pipe through hole 612 and a plurality of assembly holes 613 surrounding the foot pipe through hole 612, the lower part of the air-tight cover 62 is provided with a plurality of sliding columns 621 which can be correspondingly matched with the assembly holes 613, and the air-tight cover 62 and the assembly head 61 can be assembled in an axial moving way through the matching of the assembly holes 613 and the sliding columns 621. The end of the sliding column 621 is provided with a limiting block 622, and the limiting block 622 cannot limit the maximum moving travel of the air-closing cover 62 through the assembly hole 613, so as to ensure the sensitivity of the air-closing function of the air-closing cover 62.

The tripod automatic leveling function is based on the following principle: let the telescopic leg 2 at the oblique direction be a, and the telescopic legs 2 at the other two sides be b and c respectively. When the tripod is in an inclined state, a is lower than b and c, the leveling ball 44 rolls towards a, the leveling through hole 45 is opened, the ventilation control piece 5 at a keeps abutting with the leveling ball 44 during the period, and the ventilation channel 53 at a is kept closed; b. the vent control 5 at c is separated from the leveling ball 44, the venting passages 53 of b, c are opened, and the gas in the b, c closed cavity 211 passes into the inner cavity 43 and out of the leveling through hole 45. b. c the height is gradually reduced, and the tripod is gradually and automatically adjusted to be in a horizontal state from an inclined state. During the period, the leveling ball 44 rolls from the position a to the center, when the leveling ball 44 rolls to the center, the leveling through hole 45 is blocked, the ventilation control members 5 of the b and the c are in contact with the leveling ball 44 again, the ventilation passages 53 of the b and the c are closed, the heights of the a, the b and the c are consistent, and the tripod is adjusted to be in a horizontal state.

It should be noted that when the tripod is to be placed, the tripod is first put in a horizontal or upside-down position, and then the middle tube 22 is pulled out from the upper tube 21, during which the air-tight cover 62 is opened by the air pressure difference or gravity, and air enters the closed cavity 211 from the leg tube through hole 612. When the tripod needs to be folded, the tripod is firstly put horizontally or upside down, then the middle tube 22 is pressed into the upper tube 21, during which the air-tight cover 62 is opened by utilizing the air pressure difference or the gravity effect, and the air in the closed cavity 211 is discharged from the foot tube through hole 612.

Compared with the prior art, the tripod with the automatic leveling function has the advantages that the leveling function is achieved by adjusting the air pressure in each telescopic foot tube 2, motor driving is not needed, the whole structure is simple, the production cost is low, and compared with an existing tripod with the automatic leveling function through motor driving, the tripod with the automatic leveling function has the advantage of being more cost-effective.

The scope of the present invention includes, but is not limited to, the above embodiments, and any alterations, modifications, and improvements made by those skilled in the art are intended to fall within the scope of the invention.

Claims

1. A tripod, which comprises a tripod head (1), wherein the lower part of the tripod head (1) is connected with a plurality of telescopic foot tubes (2), is characterized in that,

the lower part of the cradle head (1) is also provided with a leveling component (4); the leveling assembly (4) comprises a shell (41), wherein a plurality of through pipes (42) corresponding to the telescopic foot pipes (2) are circumferentially arranged on the shell (41), and ventilation control pieces (5) are arranged in the through pipes (42) in a resettable manner; the shell (41) is hollow to form an inner cavity (43), a leveling ball (44) is arranged in the inner cavity (43), a leveling through hole (45) communicated with the outside is formed in the center of the bottom wall of the inner cavity (43), and when the equipment is in a horizontal state, the leveling ball (44) blocks the leveling through hole (45) and is in abutting connection with the ventilation control piece (5);

the telescopic foot tube (2) comprises an upper tube (21), a middle tube (22) and a lower tube (23) which are sequentially sleeved; the end part of the middle pipe (22) is provided with an air-tight control piece (6) and is sleeved in the upper pipe (21) to form a closed cavity (211); a connecting hose (212) is arranged on the side surface of the upper pipe (21), and the connecting hose (212) is connected with a corresponding through pipe (42);

the ventilation control piece (5) comprises an abutting block (51) and a connecting column (52), an air passage (53) is arranged in the ventilation control piece (5), one end of the air passage (53) is arranged at the end part of the connecting column (52), and the other end of the air passage (53) is arranged in the abutting block (51); the abutting surface (511) of the abutting block (51) facing one side of the leveling ball (44) is provided with a plurality of uniformly distributed air holes (512), and the air holes (512) are connected with the air passage (53); the abutting surface (511) is matched with the surface of the leveling ball (44).

2. A tripod according to claim 1, wherein said tube (42) is internally provided with an abutment ring (421), said connecting post (52) being able to pass through said abutment ring (421); the connecting column (52) is provided with an abutting step (521), and a return spring (46) is assembled between the abutting step (521) and the abutting ring (421).

3. A tripod according to claim 1, wherein the gas-closing control (6) comprises a fitting head (61) and a gas-closing cap (62), the gas-closing cap (62) being fitted on the fitting head (61); the assembly head (61) is buckled at the end part of the middle pipe (22), a boss (611) is arranged in the middle of the assembly head (61), and the air-closing cover (62) can be buckled with the boss (611) in a sealing way; the middle of the boss (611) is provided with a through foot pipe through hole (612) and a plurality of assembly holes (613) surrounding the foot pipe through hole (612), and the lower part of the air-tight cover (62) is provided with a plurality of sliding columns (621) which can be correspondingly matched with the assembly holes (613).

4. A tripod according to claim 3, wherein the end of the sliding column (621) is provided with a limiting block (622), the limiting block (622) being unable to pass through the fitting hole (613).

5. A tripod according to claim 1, wherein the pan-tilt (1) is provided with an operating shaft (3), and the levelling assembly (4) is provided with a lower end of the operating shaft (3).

6. A tripod according to claim 1, wherein the bottom wall of the cavity (43) is fitted coaxially with the levelling through hole (45) with a rubber ring (47).

7. A tripod according to claim 1, wherein the lower ends of the upper tube (21), the middle tube (22) and the lower tube (23) are provided with locking rings (24), and the locking rings (24) are provided with anti-slip protrusions (241) arranged around the collar; the end part of the lower pipe (23) is provided with a foot nail (231).