Transmission module for foot stool

Abstract

The utility model relates to the technical field of photography foot stands, in particular to a transmission module for a foot stand, which comprises a cradle head seat, the cradle head seat is provided with a plurality of flexible transmission elements and a driving module for driving the flexible transmission elements to rotate, the number of the flexible transmission elements is consistent with that of foot tubes, and the flexible transmission elements and the foot tubes are in transmission connection with each other; the driving module drives all the flexible transmission elements to rotate synchronously so as to drive all the foot pipes to be unlocked or locked. Meanwhile, under the action of the driving assembly, all the flexible transmission elements can be driven to rotate at a time, so that all the foot pipes are driven to be unlocked or locked through one key. The flexible transmission element is adopted for driving, the problem that the product is damaged and cannot be used due to sealing performance is solved, and the stability is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to photography tripod technical field especially relates to a transmission module for tripod. BACKGROUND

[0002] Prior art such as Chinese invention patent application document, discloses a control handle of photography support frame for unlocking or locking the support foot locking assembly of the photography support frame, wherein the control handle comprises: handle shell, hydraulic cylinder, set in the handle shell, the hydraulic cylinder includes cylinder body and first piston, the cylinder body is equipped with the hydraulic cavity of storing hydraulic fluid and the overflow hole in communication with the hydraulic cavity, the overflow hole is used for communicating with the support foot locking assembly, the first piston is slidably arranged in the hydraulic cavity, for extruding the hydraulic fluid in the hydraulic cavity from the overflow hole or pumping the hydraulic fluid back to the hydraulic cavity.

[0003] Based on the above, in the prior art, the flow of hydraulic oil is driven by the control handle to push the piston to realize the locking or unlocking of the leg pipe, and the problem is that when the product leaks due to various factors, the leakage of hydraulic oil will affect the normal locking or unlocking of the leg pipe, causing the leg pipe to be unable to be normally used, which needs to be further improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving one of the technical problems in the prior art. To this end, the utility model provides a transmission module for tripod.

[0005] A transmission module for tripod designed for this purpose, comprising a holder, the holder is provided with a plurality of soft transmission elements, the holder is provided with a drive module for driving the soft transmission element to rotate;

[0006] The number of soft transmission elements is consistent with the number of leg pipes and they are connected with each other in transmission;

[0007] The drive module drives all soft transmission elements to rotate synchronously to drive all leg pipes to unlock or lock.

[0008] As a preferred, the end of the soft transmission element and the drive module transmission connection is provided with a driven part; the drive module drives the driven part to rotate, thereby driving the soft transmission element to rotate.

[0009] As a preferred, the drive module includes a fixedly arranged mounting seat, a driving part and a driving assembly, the end of the soft transmission element and the drive module transmission connection is rotatably arranged on the mounting seat;

[0010] The driving member is in transmission cooperation with the driven members, and is movably or rotatably arranged relative to the mounting base and can move or rotate relative to the mounting base between a first position and a second position;

[0011] The driving assembly is used to drive the driving member to move or rotate relative to the mounting base, and the driving member drives all the driven members to rotate synchronously, so as to drive all the soft transmission elements to rotate.

[0012] Preferably, the driving assembly comprises a holding member, a pressing member and a first elastic element, the holding member is fixedly connected with the holder base, and the pressing member is rotatably arranged relative to the holding member;

[0013] When the pressing member rotates relative to the holding member, the driving member can be driven to move or rotate relative to the mounting base from the first position to the second position, so as to drive the soft transmission elements to rotate;

[0014] The first elastic element is connected with the driving member, and the force of the first elastic element keeps the driving member in the first position.

[0015] Preferably, the pressing member is provided with a driving block, and the driving member is provided with a driven block;

[0016] The driving block abuts against the driven block, and when the pressing member rotates relative to the holding member, the driving block pushes the driven block to drive the driving member to move or rotate relative to the mounting base from the first position to the second position, so as to drive the soft transmission elements to rotate.

[0017] Preferably, the driving assembly further comprises a safety assembly, the safety assembly restricts the rotation of the pressing member relative to the holding member, so as to avoid the movement of the driving member caused by accidental touch of the pressing member.

[0018] Preferably, the safety assembly comprises a locking pin movably arranged on the holding member, the locking pin can move relative to the holding member between a position A and a position B, the locking pin is provided with a avoiding space, the holding member and the locking pin are connected with a second elastic element, and the second elastic element restricts the locking pin to keep in the position A;

[0019] The pressing member is connected with a limiting block, and the limiting block abuts against the locking pin to limit the movement of the locking pin;

[0020] When the locking pin is located in the position A, the avoiding space and the locking pin are arranged in a staggered manner;

[0021] When the locking pin is located in the position B, the avoiding space and the locking pin are arranged in a corresponding manner, the limiting block can pass through the avoiding space, and the pressing member can rotate relative to the holding member.

[0022] Compared with the prior art, under the action of the soft transmission element, the soft transmission element is in transmission with the corresponding foot pipe respectively, so as to drive the corresponding foot pipe to be unlocked or locked. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a sectional structure schematic view of the foot support;

[0024] Figure 2 It is a sectional structure schematic view of the foot support; Figure 1

[0025] Figure 3 It is a sectional structure schematic view of the foot support; Figure 1

[0026] Figure 4 It is a sectional structure schematic view of the foot support;

[0027] Figure 5 It is a sectional structure schematic view of the foot support;

[0028] Figure 6 It is a sectional structure schematic view of the foot support;

[0029] Figure 7 It is a sectional structure schematic view of the foot support;

[0030] Figure 8 It is a sectional structure schematic view of the foot support;

[0031] Figure 9 It is a sectional structure schematic view of the foot support; DETAILED DESCRIPTION

[0032] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0033] Referring to Figures 1-9 ​​The utility model provides a transmission module for a tripod, the tripod includes a holder 10, the holder 10 is connected with several leg tubes 40, the holder 10 is provided with several soft transmission elements 20, and the holder 10 is provided with a drive module 30 for driving the soft transmission elements 20 to rotate.

[0034] The soft transmission element 20 adopts a universal flexible shaft, which is a commercially available product, and its structure will not be described here.

[0035] Referring to Figures 1-8 The holder 10 is provided with a containing cavity 110, the soft transmission element 20 is arranged in the containing cavity 110, the containing cavity 110 is provided with an opening, and the soft transmission element 20 is in transmission connection with the leg tube 40 through the opening of the containing cavity 110.

[0036] Referring to Figure 1 and Figure 2 One end of the soft transmission element 20 in transmission connection with the drive module 30 is provided with a driven part 320; the drive module 30 drives the driven part 320 to rotate, thereby driving the soft transmission element 20 to rotate.

[0037] Referring to Figure 2 and Figure 9The drive module 30 includes a fixed mounting base 210, a drive member 310, and a drive assembly 360. One end of the flexible transmission element 20, which is connected to the drive module 30, is rotatably mounted on the mounting base 210. The drive member 310 is in transmission cooperation with the driven member 320. The drive member 310 is movable or rotated relative to the mounting base 210. The drive member 310 can move or rotate relative to the mounting base 210 between a first position and a second position. When the drive assembly 360 drives the drive member 310 to move or rotate relative to the mounting base 210, the drive member 310 synchronously drives all the driven members 320 to rotate, thereby driving all the flexible transmission elements 20 to rotate.

[0038] Embodiment 1 of the driving member 310 and the driven member 320: Figure 2 As shown, several flexible transmission elements 20 are arranged sequentially on the mounting base 210 along a first direction; the driving element 310 is a rack; the driven element 320 is a gear; the driving element 310 and the driven element 320 mesh with each other, and the driving element 310 is movable relative to the mounting base 210 along the first direction; the driving assembly 360 is used to drive the driving element 310 to move along the first direction; when the driving element 310 moves along the first direction, the driving element 310 drives the driven element 320 to rotate. The principle of this embodiment is that under the movement of the driving element 310, it will synchronously drive all the driven elements 320 to rotate together, thereby driving all the flexible transmission elements 20 to rotate, and the flexible transmission elements 20 drive the foot tube 40 to unlock or lock.

[0039] Embodiment 2 of the drive component 310 and driven component 320: The drive module 30 includes a fixedly mounted mounting base 210, a drive component 310, and a drive assembly 360. One end of the flexible transmission element 20, which is connected to the drive module 30, is rotatably mounted on the mounting base 210. For example... Figure 9 As shown, the driving member 310 is the driving gear, the driven member 320 is the driven gear, and several driven gears are arranged in a ring. The driving gear meshes with all the driven gears for transmission. When the driving member 310 rotates, it drives all the driven members 320 to rotate synchronously, thereby driving the soft transmission element 20 to rotate.

[0040] like Figure 2 As shown, one embodiment of the drive assembly 360 includes a gripper 300, a pressing member 330, and a first elastic element 60. The gripper 300 is fixedly connected to the gimbal base 10, and the pressing member 330 is rotatably disposed relative to the gripper 300. When the pressing member 330 rotates relative to the gripper 300, it can drive the drive member 310 to move or rotate relative to the mounting base 210 from a first position to a second position, thereby driving the flexible transmission element 20 to rotate. The first elastic element 60 is connected to the drive member 310, and the force of the first elastic element 60 keeps the drive member 310 in the first position. Figure 2As shown, the driving element 310 is located in the first position. In this embodiment, since the driving element 310 is driven by a person, a first elastic element 60 is required to keep it in the first position, which serves as a limiting constraint.

[0041] like Figure 2 As shown, in one embodiment of the drive assembly 360, the pressing member 330 is provided with a drive block 340, and the drive member 310 is provided with a driven block 350. The drive block 340 and the driven block 350 abut against each other. When the pressing member 330 rotates relative to the gripping member 300, the drive block 340 pushes the driven block 350 to drive the drive member 310 to move or rotate relative to the mounting base 210 from the first position to the second position. Then, the drive member 310 drives the driven member 320 to rotate, thereby driving the flexible transmission element 20 to rotate.

[0042] In one embodiment of the drive component 360, the drive component 360 further includes a safety component 50, which restricts the pressing member 330 from rotating relative to the gripping member 300 to prevent accidental contact with the pressing member 330 from causing the drive component 310 to move, thereby ensuring that the foot tube 40 will not be switched between locked and unlocked states due to accidental contact, thus ensuring stability in use.

[0043] Embodiment 2 of the drive assembly 360: The drive assembly 360 is driven by a motor, and the motor drives the drive component 310 to move or rotate relative to the mounting base 210 from a first position to a second position. When the drive component 310 is a rack, the motor shaft is connected to a transmission gear that meshes with the rack for transmission. When the drive component 310 is a driving gear, the motor shaft is connected to a transmission gear that meshes with the driving gear for transmission.

[0044] In some embodiments, such as Figure 7 and Figure 8 As shown, the safety assembly 50 includes a locking pin 510 movably disposed on the grip 300. The locking pin 510 is movable relative to the grip 300 between positions A and B. The locking pin 510 is provided with a clearance space 520. A second elastic element 530 is connected between the grip 300 and the locking pin 510, and the second elastic element 530 constrains the locking pin 510 to remain in position A. A pressing member 330 is connected to a limiting block 341, which abuts against and limits the locking pin 510. When the locking pin 510 is in position A, the clearance space 520 and the locking pin 510 are offset from each other. When the locking pin 510 is in position B, the clearance space 520 and the locking pin 510 are correspondingly disposed. In this state, the limiting block 341 can pass through the clearance space 520, so that the pressing member 330 can rotate relative to the grip 300.

[0045] Further, the locking pin 510 is connected with a button 511 at one end, and touching the button 511 can drive the locking pin 510 to move from the position A to the position B; in this state, the avoiding space 520 is arranged corresponding to the locking pin 510, and in this state, the limiting block 341 can pass through the avoiding space 520, so that the pressing piece 330 can rotate relative to the holding piece 300.

[0046] Referring to Figure 3 , the foot pipe 40 at least includes a fixed pipe section 410 and a telescopic pipe section 420, and the telescopic pipe section 420 is movably arranged relative to the fixed pipe section 410; the telescopic pipe section 420 is provided with a locking module 70 which is locked or unlocked with the fixed pipe section 410, and the locking module 70 is drivingly connected with a linkage shaft 80; the soft transmission element 20 is rotatably arranged on the foot pipe 40 at one end connected with the foot pipe 40 and is drivingly connected with the linkage shaft 80.

[0047] Referring to Figure 3 , the locking module 70 includes a locking frame 710 connected with the telescopic pipe section 420, and the locking frame 710 is circumferentially arranged with a plurality of locking wedge blocks 720 which are movably arranged on the locking frame 710 along the radial direction of the telescopic pipe section 420, and the locking wedge blocks 720 are movably arranged on the locking frame 710 to abut against the inner wall of the fixed pipe section 410 to achieve locking, and the two are separated to achieve unlocking. The locking frame 710 is movably arranged with a conical sleeve 730 along the axial direction of the telescopic pipe section 420, the wall surface of the locking wedge block 720 and the conical sleeve 730 is a bevel surface, and when the locking wedge block 720 moves along the axial direction of the telescopic pipe section 420, it can drive the locking wedge block 720 to abut against the inner wall of the fixed pipe section 410 to achieve locking, and vice versa. The linkage shaft 80 is arranged in the conical sleeve 730, and the linkage shaft 80 is provided with a threaded part 740 which is threadedly connected with the conical sleeve 730.

[0048] When the linkage shaft 80 rotates clockwise, it drives the threaded part 740 to rotate synchronously, and under the thread cooperation between the threaded part 740 and the conical sleeve 730, the conical sleeve 730 is driven to move upward, and the upward movement of the conical sleeve 730 can press the locking wedge block 720 to force the locking wedge block 720 to abut against the inner wall of the fixed pipe section 410 to achieve locking. When the linkage shaft 80 rotates counterclockwise, the conical sleeve 730 moves downward, and the conical sleeve 730 moves downward, and the conical sleeve 730 and the locking wedge block 720 have a movement gap, and the locking wedge block 720 can move towards the movement gap to release the abutment against the inner wall of the fixed pipe section 410 to achieve unlocking.

[0049] Referring to Figure 1 and Figure 3The foot pipe 40 is connected with a foot pipe connecting seat 430, the foot pipe connecting seat 430 is rotationally connected with the holder seat 10, a through cavity 400 is arranged in the foot pipe connecting seat 430, the through cavity 400 is communicated with the accommodating cavity 110 and the inside of the foot pipe 40, and the soft transmission element 20 extends to the inside of the foot pipe 40 through the through cavity 400.

[0050] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed for protection. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A transmission module for a tripod, comprising a head base (10), characterized in that: The holder (10) is provided with a plurality of soft transmission elements (20), and the holder (10) is provided with a driving module (30) for driving the soft transmission elements (20) to rotate; The number of the soft transmission elements (20) is consistent with the number of the foot tubes (40), and the soft transmission elements (20) and the foot tubes (40) are transmissionally connected with each other; The driving module (30) drives all the soft transmission elements (20) to rotate synchronously, so as to drive all the foot tubes (40) to be unlocked or locked.

2. Transmission module for a footrest according to claim 1, characterized in that: One end of the soft transmission element (20) which is transmissionally connected with the driving module (30) is provided with a driven element (320); the driving module (30) drives the driven element (320) to rotate, so as to drive the soft transmission element (20) to rotate.

3. Transmission module for a footrest according to claim 2, characterized in that: The driving module (30) comprises a fixedly arranged mounting seat (210), a driving element (310) and a driving assembly (360), and one end of the soft transmission element (20) which is transmissionally connected with the driving module (30) is rotationally arranged on the mounting seat (210); The driving element (310) is transmissionally matched with the driven element (320), the driving element (310) is movably or rotationally arranged relative to the mounting seat (210), and the driving element (310) can be moved or rotated between a first position and a second position relative to the mounting seat (210); The driving assembly (360) is used for driving the driving element (310) to move or rotate relative to the mounting seat (210), and the driving element (310) synchronously drives all the driven elements (320) to rotate, so as to drive all the soft transmission elements (20) to rotate.

4. Transmission module for a footrest according to claim 3, characterized in that: The driving assembly (360) comprises a holding element (300), a pressing element (330) and a first elastic element (60), the holding element (300) is fixedly connected with the holder (10), and the pressing element (330) is rotationally arranged relative to the holding element (300); When the pressing element (330) rotates relative to the holding element (300), the driving element (310) can be driven to move or rotate from the first position to the second position relative to the mounting seat (210), so as to drive the soft transmission element (20) to rotate; The first elastic element (60) is connected with the driving element (310), and the action force of the first elastic element (60) keeps the driving element (310) in the first position.

5. Transmission module for a footrest according to claim 4, characterized in that: The pressing element (330) is provided with a driving block (340), and the driving element (310) is provided with a driven block (350); The driving block (340) abuts against the driven block (350), when the pressing element (330) rotates relative to the holding element (300), the driving block (340) pushes the driven block (350) to drive the driving element (310) to move or rotate from the first position to the second position relative to the mounting seat (210), so as to drive the soft transmission element (20) to rotate.

6. Transmission module for a footrest according to claim 5, characterized in that: The driving assembly (360) further comprises a safety assembly (50) for restricting the rotation of the pressing member (330) relative to the holding member (300) to avoid the movement of the driving member (310) caused by the accidental pressing of the pressing member (330).

7. Transmission module for a footrest according to claim 6, characterized in that: The safety assembly (50) comprises a locking pin (510) movably arranged on the holding member (300), the locking pin (510) is movable between an A position and a B position relative to the holding member (300), the locking pin (510) is provided with a clearance space (520), the holding member (300) and the locking pin (510) are connected with a second elastic element (530), the second elastic element (530) restricts the locking pin (510) to remain in the A position; The pressing member (330) is connected with a limiting block (341), the limiting block (341) is limited by the locking pin (510); When the locking pin (510) is in the A position, the clearance space (520) and the locking pin (510) are arranged in a staggered manner; When the locking pin (510) is in the B position, the clearance space (520) and the locking pin (510) are arranged in a corresponding manner, the limiting block (341) can pass through the clearance space (520), and the pressing member (330) can rotate relative to the holding member (300).

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