A support leg, monopod and tripod with a drivable lever lock

Abstract

The present invention relates to the technical field of photographic equipment, and in particular to a support leg, a monopod and a tripod that can be locked by a transmission lever. The support leg includes at least two leg segments arranged in sequence, and each leg segment can axially move relative to one or more of the other leg segments to extend or shorten the support leg; a lever locking assembly is provided on the leg segment, and the lever locking assembly can perform position locking and position release through lever movement; the support leg further includes a transmission assembly and an operation assembly installed on one of the leg segments, and the operation assembly is drivingly connected to the lever locking assembly through the transmission assembly. The structure of the present invention is novel, realizing the mutual axial movement or position locking between the leg segments. Compared with the traditional method of gradually locking multiple joints and loosening multiple joints for position locking and release, the operation is simple and convenient, and the extension and shortening of the support leg are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of photographic equipment, and in particular to a support leg, a monopod and a tripod that can be locked by a transmission lever. Background Art

[0002] Monopods and tripods are common photographic equipment, which usually include a telescopic rod body and a platform for mounting photographic equipment to achieve support for shooting. In current photography, monopods and tripods are very common photographic equipment. At present, the telescopic structures of the support legs of general monopods and tripods need to lock multiple joints step by step and loosen multiple joints, and the multiple operations are inconvenient. The existing telescopic structures of monopods are complex and the operations are cumbersome. Summary of the Invention

[0003] In view of the problems of the prior art, the present invention provides a support leg, a monopod and a tripod that can be locked by a transmission lever, with novel structure and ingenious design. When it is necessary to adjust the relative length of the support leg, that is, to extend or shorten the support leg, the operation component can be used. The operation component drives the lever locking component to act through the transmission component, and the lever locking component locks or releases the position of the leg segment, so as to realize the mutual axial movement or position locking between the leg segments. Compared with the traditional method of locking and releasing positions by locking and loosening multiple joints step by step, the operation is simple and convenient, and the extension and shortening of the support leg are realized.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A support leg that can be locked by a transmission lever provided by the present invention includes at least two leg segments arranged in sequence, and each leg segment can axially move relative to one or more of the other leg segments to extend or shorten the support leg;

[0006] A lever locking component is arranged on the leg segment, and the lever locking component can lock and release positions through lever movement;

[0007] The support leg further includes a transmission component and an operation component installed on one of the leg segments, and the operation component is drivingly connected to the lever locking component through the transmission component.

[0008] Wherein, the lever locking component includes a locking base, an action component movably arranged on the locking base, and a lever component rotatably arranged on the locking base. One end of the lever component is used to cooperate and abut against the action component, and a locking portion is arranged at the other end of the lever component; a rotation cavity for the lever component to rotate is arranged on the locking base, and a return spring is arranged between the locking base and the lever component, and the return spring is located in the rotation cavity;

[0009] The transmission assembly drives the action component to push one end of the lever component to drive the locking portion to lock and release the position of the leg segment.

[0010] Among them, the action component includes a movable steel ball, the locking base is provided with a cavity for accommodating the movable steel ball, openings are provided on both sides of the cavity, the diameter of the opening is smaller than the diameter of the movable steel ball, and the transmission assembly drives the steel ball to protrude out of the opening and then push one end of the lever component.

[0011] Wherein, an anti-wear pad body is arranged at one end of the lever component.

[0012] Wherein, a pin shaft is arranged on the locking base, an axial hole is arranged in the middle of the lever component, and the pin shaft is movably arranged in the axial hole.

[0013] Wherein, a friction gasket is arranged on the locking portion.

[0014] Wherein, sliding holes are arranged on both sides of the locking base, and another leg section adjacent to the locking base is slidably arranged through the sliding holes.

[0015] Wherein, the transmission assembly includes a transmission rod and a transmission cam mounted on the outer circumference of the transmission rod, the operating assembly is transmission-connected with the other end of the transmission rod, and the transmission cam cooperates and abuts with the action component;

[0016] The operating assembly includes an operating base, a rotating shaft rotatably arranged on the operating base, a first bevel gear sleeved on the outer periphery of the rotating shaft, and a handle connected to the rotating shaft; the other end of the transmission rod is provided with a second bevel gear meshing and transmission connected with the first bevel gear.

[0017] Wherein, a fixing block is mounted on the rotating shaft body, and a torsion spring is sleeved on the rotating shaft body, and two ends of the torsion spring are respectively connected to the fixing block and the operating base.

[0018] Wherein, the protruding portion of the transmission cam is provided with a horizontal section.

[0019] The present invention also provides a monopod, comprising a pan head, a support base and support legs locked by the traversable lever, wherein the pan head is installed at the top of the topmost leg section, and the support base is installed at the bottom of the lowest leg section.

[0020] The present invention also provides a tripod, comprising a platform body and three supporting legs rotatably arranged on the platform body and locked by the translatable lever.

[0021] Beneficial effects of the present invention:

[0022] The structure of the present invention is novel and ingeniously designed. When it is necessary to adjust the relative length of the support legs, that is, to elongate or shorten the support legs, this operating component can be used. The operating component drives the lever locking component to act through the transmission component, and locks or releases the position of the leg segment through the lever locking component, realizing the mutual axial movement or position locking between the leg segments. Compared with the traditional method of gradually locking and loosening multiple joints for position locking and release, the operation is simple and convenient, and the elongation and shortening of the support legs are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is a schematic structural diagram of a support leg with a drivable lever lock for Embodiment 1.

[0024] Figure 2 FIG. is a partial structural exploded view of a support leg with a drivable lever lock for Embodiment 1.

[0025] Figure 3 FIG. is an exploded view of the lever locking component of the present invention.

[0026] Figure 4 FIG. is a schematic structural diagram of the operating component of the present invention.

[0027] Figure 5 FIG. is a schematic structural diagram of the transmission cam of the present invention.

[0028] Figure 6 FIG. is a schematic structural diagram of Embodiment 3.

[0029] In Figures 1 to 6 the accompanying drawings include:

[0030] 1. Lever locking component; 2. Transmission component; 3. Operating component;

[0031] 1a. First leg segment; 1b. Second leg segment; 1c. Third leg segment;

[0032] 4. Locking base; 5. Movable steel ball; 6. Lever part; 7. Locking part; 8. Rotating cavity; 9. Return spring; 10. Cavity; 11. Anti-wear gasket body; 12. Pin shaft; 13. Shaft hole;

[0033] 14. Friction gasket; 15. Slide hole;

[0034] 16. Transmission rod; 17. Transmission cam;

[0035] 18. Operating base; 19. Rotating shaft body; 20. First bevel gear; 21. Handle; 22. Second bevel gear; 23. Fixed block; 24. Torsion spring; 25. Horizontal section; 26. Driving cavity;

[0036] 27. Cloud platform body;. Detailed implementation manners

[0037] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation manners is not a limitation to the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0038] Embodiment 1

[0039] A support leg with lever locking that can be driven, as Figures 1 to 5 shown, includes at least two leg segments arranged in sequence. Each leg segment can axially move relative to one or more of the other leg segments to extend or shorten the support leg;

[0040] A lever locking assembly 1 is provided on the leg segment. The lever locking assembly 1 can perform position locking and position release through lever movement;

[0041] The support leg further includes a transmission assembly 2 and an operation assembly 3 installed on one of the leg segments. The operation assembly 3 is drivingly connected to the lever locking assembly 1 through the transmission assembly 2.

[0042] Specifically, the structure of the present invention is novel and ingeniously designed. When it is necessary to adjust the relative length of the support leg, that is, to extend or shorten the support leg, the operation assembly 3 can be used. The operation assembly 3 drives the lever locking assembly 1 to act through the transmission assembly 2. The lever locking assembly 1 locks or releases the position of the leg segment, realizing the mutual axial movement or position locking between the leg segments. Compared with the traditional method of gradually locking and loosening multiple joints for position locking and release, the operation is simple and convenient, and the extension and shortening of the support leg are realized.

[0043] Among them, as Figure 1 shown, the support leg includes a first leg segment 1a, a second leg segment 1b, and a third leg segment 1c. The lever locking assembly 1 is provided at both the top and bottom of the second leg segment 1b. The operation assembly 3 is provided on the first leg segment 1a; in the initial state, the lever locking assembly 1 locks the positions of the first leg segment 1a and the second leg segment 1b and the positions of the second leg segment 1b and the third leg segment 1c; when the operation assembly 3 is operated and the lever locking assembly 1 is driven to act through the transmission assembly 2 to achieve position release, the second leg segment 1b and the third leg segment 1c can axially move to realize the length adjustment of the support leg.

[0044] In this embodiment, the lever locking assembly 1 includes a locking base 4, a moving member movably disposed on the locking base 4, and a lever member 6 rotatably disposed on the locking base 4. One end of the lever member 6 is used to cooperate and abut against the moving member, and a locking portion 7 is provided at the other end of the lever member 6. The locking base 4 is provided with a rotating cavity 8 for the lever member 6 to rotate, and a return spring 9 is disposed between the locking base 4 and the lever member 6. The return spring 9 is located in the rotating cavity 8.

[0045] The transmission assembly 2 drives the moving member to push one end of the lever member 6 so as to drive the locking portion 7 to lock and release the position of the leg segment.

[0046] Preferably, the moving member includes a movable steel ball 5. The locking base 4 is provided with a cavity 10 for accommodating the movable steel ball 5. Both sides of the cavity 10 are provided with openings, and the diameter of the openings is smaller than the diameter of the movable steel ball 5. With the above settings, it not only ensures that the movable steel ball 5 can protrude to drive the lever member 6, but also ensures that the movable steel ball 5 can work properly, preventing the movable steel ball 5 from detaching from the cavity 10 and causing the damage and inoperability of the present invention, with reliable structure. The transmission assembly 2 drives the steel ball to protrude from the opening and then push one end of the lever member 6.

[0047] Specifically, when the operation assembly 3 drives the lever locking assembly 1 to work through the transmission assembly 2, the driving end of the transmission assembly 2 acts on the moving member, that is, the movable steel ball 5. The movable steel ball 5 protrudes from the opening and acts on one end of the lever member 6. The lever member 6 rotates to drive the locking portion 7 to lock the position of the leg segment. When the transmission assembly 2 no longer drives the lever locking assembly 1, the lever member 6 resets under the action of the return spring 9, pushing the movable steel ball 5 to retract into the cavity 10 and protrude from the other opening, facilitating the next operation of the transmission assembly 2 to drive the moving member.

[0048] Preferably, two lever members 6 are provided and are symmetrically arranged with respect to the movable steel ball 5. When the movable steel ball 5 protrudes from the opening of the cavity 10, it acts on the two lever members 6 at the same time, using the two lever members 6 to lock the leg segment at the same time, further improving the stability and reliability of the locking between the leg segments.

[0049] In this embodiment, an anti-wear pad 11 is provided at one end of the lever component 6. Specifically, the anti-wear pad 11 can be made of a soft anti-wear material such as rubber, plastic, or silicone, and is used to cooperate with the movable steel ball 5 to abut against the movable steel ball 5, reduce friction, avoid damage to the lever component 6, and improve structural reliability. Preferably, the lever component 6 is made of metal; of course, the lever component 6 can also be made of hard plastic material, but the lever component 6 made of metal is more durable, has high strength, and has a long service life.

[0050] In this embodiment, a pin shaft 12 is disposed on the locking base 4 , and a shaft hole 13 is disposed in the middle of the lever component 6 , and the pin shaft 12 is movably inserted into the shaft hole 13 .

[0051] In this embodiment, a friction pad 14 is provided on the locking portion 7. Specifically, the friction pad 14 can be a rubber pad, a plastic pad, an anti-wear cloth pad, etc., which is not particularly limited here; its purpose is to achieve the stopping of the leg section and also to avoid the wear of the leg section.

[0052] In this embodiment, sliding holes 15 are provided on both sides of the locking base 4, and another leg segment adjacent to the locking base 4 is slidably inserted into the sliding hole 15. Specifically, the above arrangement facilitates axial movement between the leg segments.

[0053] Preferably, the first leg section 1a, the second leg section 1b and the third leg section 1c are all tube-row structures, such as Figure 1 As shown, the second leg segment 1b is slidably disposed through the first leg segment 1a, and the third leg segment 1c is slidably disposed through the second leg segment 1b.

[0054] In this embodiment, the transmission assembly 2 includes a transmission rod 16 and a transmission cam 17 mounted on the outer periphery of the transmission rod 16, the operating assembly 3 is transmission-connected to the other end of the transmission rod 16, and the transmission cam 17 cooperates with and abuts against the action component;

[0055] The operating assembly 3 includes an operating base 18, a rotating shaft 19 rotatably disposed on the operating base 18, a first bevel gear 20 sleeved on the outer periphery of the rotating shaft 19, and a handle 21 connected to the rotating shaft 19;

[0056] The other end of the transmission rod 16 is provided with a second bevel gear 22 meshing and transmission-connected with the first bevel gear 20 .

[0057] Specifically, when the operating component 3 acts, the user operates the handle 21. Under the above settings, the transmission rod 16 is driven to rotate. The transmission rod 16 drives the transmission cam 17 to rotate. When the protruding part of the transmission cam 17 acts on the action component (i.e., the movable steel ball 5), the movable steel ball 5 extends out from an opening of the cavity 10 and acts on one end of the lever component 6, driving the lever component 6 to rotate. The locking part 7 is used to lock the leg section, realizing the length locking of the support leg. When the transmission rod 16 continues to rotate and the protruding part of the transmission cam 17 disengages from the movable steel ball 5, under the action of the return spring 9, the movable steel ball 5 is driven to reset. At this time, the position of the leg section is released, and the length of the support leg can be adjusted.

[0058] Wherein, a driving cavity 26 is penetrated through the locking base 4. The transmission cam 17 is rotatably arranged in the driving cavity 26. The transmission rod 16 slidably penetrates through the driving cavity 26 and the transmission cam 17.

[0059] Wherein, the number of the transmission cams 17 corresponds one-to-one to the number of the lever locking assemblies 1, and each transmission cam 17 acts on each action component.

[0060] In this embodiment, a horizontal section 25 is arranged on the protruding part of the transmission cam 17. Specifically, when the protruding part of the transmission cam 17 acts on the action component (i.e., the movable steel ball 5), the movable steel ball 5 extends out from an opening of the cavity 10 and acts on one end of the lever component 6, driving the lever component 6 to rotate. The locking part 7 is used to lock the leg section. At this stage, under the action of the horizontal section 25, the horizontal section 25 continuously keeps the movable steel ball 5 pressing against the lever component 6. The lever component 6 locks the leg section, so that neither the leg section nor the transmission rod 16 can move under its own weight, thereby locking the transmission rod 16, avoiding the self-rotation of the transmission rod 16, and also avoiding the self-rotation of the handle 21 from affecting the use effect, realizing the locking effect, without the need for additional accessories and components for additional locking, with a simple structure and convenient use.

[0061] Wherein, a fixing block 23 is installed on the rotating shaft body 19. A torsion spring 24 is also sleeved on the rotating shaft body 19. Two ends of the torsion spring 24 are respectively connected with the fixing block 23 and the operating base 18. When the transmission cam 17 acts on the action component and locks the leg section, under the elastic action of the torsion spring 24, the rotating shaft body 19 is driven to slightly reset, avoiding the self-rotation and swinging of the handle 21.

[0062] Of course, the operating component 3 can also be a micro motor for driving the transmission rod 16 to rotate. The micro motor is equipped with a wireless control module to realize communication connection with the mobile phone, which is convenient for users to use. Of course, control buttons can also be arranged on the operating component 3 to control the micro motor.

[0063] Embodiment 2

[0064] Embodiment 2 describes a monopod, including a pan-tilt head, a support base, and the support legs that can be locked by a transmission lever. The pan-tilt head is installed at the top of the topmost leg segment, and the support base is installed at the bottom of the lowermost leg segment. Specifically, the support base can be the support base used for monopods in the prior art. The support base is provided with three detachable and foldable auxiliary feet evenly distributed on the support base, so that the bottom support of the monopod becomes a three-legged support, enabling the monopod to obtain the stable performance of a tripod. Preferably, the pan-tilt head is detachably installed on the operation base 18 for convenient assembly.

[0065] Embodiment 3

[0066] As shown in Embodiment 3 Figure 6 A tripod is shown, including a pan-tilt head body 27 and three support legs that are rotatably arranged on the pan-tilt head body 27 and can be locked by a transmission lever. Specifically, under the above settings, Embodiment 1 is applied to the tripod of Embodiment 3 to facilitate the adjustment of the height of the tripod. Preferably, an angle adjustment member is provided between the pan-tilt head body 27 and the support legs. The angle adjustment member is in the prior art and is used to achieve the angle between the support legs and the pan-tilt head body 27.

[0067] The above are only preferred embodiments of the present invention and do not impose any form of limitation on the present invention. Although the present invention is disclosed above in preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art, without departing from the scope of the technical solution of the present invention, when making some changes or modifications using the above-disclosed technical content to equivalent embodiments with equivalent changes, but as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments according to the technical means of the present invention all fall within the scope of the technical solution of the present invention.

Claims

1. A support leg with a drivable lever lock, comprising at least two leg segments arranged in sequence, each leg segment being axially movable relative to one or more of the other leg segments to extend or shorten the support leg; characterized in that: A lever lock assembly is provided on the leg segment, and the lever lock assembly can perform position locking and position release through lever movement; The support leg further includes a transmission assembly and an operation assembly installed on one of the leg segments, and the operation assembly is drivingly connected to the lever lock assembly through the transmission assembly; The lever lock assembly includes a locking base, a moving part movably arranged on the locking base, and a lever part rotatably arranged on the locking base. One end of the lever part is used to cooperate and abut against the moving part, and a locking part is arranged at the other end of the lever part; The transmission assembly drives the moving part to push one end of the lever part to drive the locking part to perform position locking and position release on the leg segment; Sliding holes are provided on both sides of the locking base, and another leg segment adjacent to the locking base slidably penetrates through the sliding holes; The transmission assembly includes a transmission rod and a transmission cam sleeved on the outer periphery of the transmission rod. The operation assembly is drivingly connected to one end of the transmission rod, and the transmission cam cooperates and abuts against the moving part; The operation assembly includes an operation base, a rotating shaft body rotatably arranged on the operation base, a first bevel gear sleeved on the outer periphery of the rotating shaft body, and a handle connected to the rotating shaft body; A second bevel gear meshing and drivingly connected to the first bevel gear is arranged at one end of the transmission rod.

2. The support leg with a drivable lever lock according to claim 1, wherein: The locking base is provided with a rotating cavity for the lever part to rotate, and a return spring is arranged between the locking base and the lever part, and the return spring is located in the rotating cavity.

3. The support leg with a drivable lever lock according to claim 2, characterized in that: The moving part includes a movable steel ball. The locking base is provided with a cavity for accommodating the movable steel ball. Openings are provided on both sides of the cavity, and the diameter of the openings is smaller than the diameter of the movable steel ball. The transmission assembly drives the movable steel ball to protrude out of the opening and then push one end of the lever part.

4. A support leg with a drivable lever lock according to claim 2, characterized in that: A wear-resistant pad body is arranged at one end of the lever part.

5. The support leg with a drivable lever lock according to claim 2, characterized in that: A friction gasket is arranged on the locking part.

6. The support leg with a drivable lever lock according to claim 1, characterized in that: A horizontal section is arranged at the protruding part of the transmission cam.

7. A monopod, characterized in that: It includes a pan-tilt, a support base, and the support leg with a drivable lever lock according to any one of claims 1-6. The pan-tilt is installed at the top of the topmost leg segment, and the support base is installed at the bottom of the lowermost leg segment.

8. A tripod, characterized in that: It includes a pan-tilt body and three support legs with a drivable lever lock according to any one of claims 1-6 rotatably arranged on the pan-tilt body.

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