CN114440094A - Supporting leg, unipod and tripod that can drive lever locking - Google Patents
Supporting leg, unipod and tripod that can drive lever locking Download PDFInfo
- Publication number
- CN114440094A CN114440094A CN202210139221.1A CN202210139221A CN114440094A CN 114440094 A CN114440094 A CN 114440094A CN 202210139221 A CN202210139221 A CN 202210139221A CN 114440094 A CN114440094 A CN 114440094A
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- Prior art keywords
- lever
- transmission
- leg
- locking
- component
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000000712 assembly Effects 0.000 claims abstract description 7
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- 239000010959 steel Substances 0.000 claims description 29
- 238000005299 abrasion Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 238000004904 shortening Methods 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 239000005060 rubber Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
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- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
- F16B7/14—Telescoping systems locking in intermediate non-discrete positions
- F16B7/1427—Telescoping systems locking in intermediate non-discrete positions with cammed or eccentrical surfaces co-operating by relative rotation of the telescoping members or by rotation of an external collar
- F16B7/1436—Telescoping systems locking in intermediate non-discrete positions with cammed or eccentrical surfaces co-operating by relative rotation of the telescoping members or by rotation of an external collar with rollers or balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/32—Undercarriages for supports with three or more telescoping legs
- F16M11/34—Members limiting spreading of legs, e.g. "umbrella legs"
Abstract
The invention relates to the technical field of photographic equipment, in particular to a supporting leg, a unipod and a tripod capable of being locked by a transmission lever, which comprise at least two leg sections which are arranged in sequence, wherein each leg section can axially move relative to one or more of other leg sections so as to extend or shorten the supporting leg; the leg sections are provided with lever locking assemblies which can perform position locking and position releasing through lever movement; the supporting leg further comprises a transmission assembly and an operation assembly installed on one leg section, and the operation assembly is in driving connection with the lever locking assembly through the transmission assembly. The leg locking device has a novel structure, realizes mutual axial movement or position locking of leg sections, is simple and convenient to operate and realizes extension and shortening of the supporting leg compared with the traditional mode of gradually locking a plurality of joints and loosening the plurality of joints for position locking and releasing.
Description
Technical Field
The invention relates to the technical field of photographic equipment, in particular to a supporting leg, a unipod and a tripod capable of driving a lever to be locked.
Background
The common photographic equipment of unipod, tripod, it includes a flexible body of rod and is used for installing photographic equipment's platform usually, realizes supporting the shooting, and in present photography, unipod, tripod are a very common photographic equipment, and the extending structure of its supporting leg of present general unipod, tripod all need progressively lock a plurality of joints, loosen a plurality of joints, and multiple operation is inconvenient, the complicated complex operation of current unipod extending structure is loaded down with trivial details.
Disclosure of Invention
The invention provides a supporting leg, a unipod and a tripod capable of driving a lever to lock aiming at the problems in the prior art, the structure is novel, the design is ingenious, when the relative length of the supporting leg needs to be adjusted, namely, the supporting leg is extended or shortened, the operating assembly can be used, the operating assembly drives the lever locking assembly to act through the transmission assembly, the position locking or position releasing is carried out on leg sections through the lever locking assembly, the mutual axial movement or position locking between the leg sections is realized, compared with the traditional mode of gradually locking a plurality of joints and loosening the joints to carry out position locking and releasing, the operation is simple and convenient, and the extension and shortening of the supporting leg are realized.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a supporting leg capable of being locked by a transmission lever, which comprises at least two leg sections arranged in sequence, wherein each leg section can axially move relative to one or more of other leg sections to extend or shorten the supporting leg;
the leg sections are provided with lever locking assemblies which can perform position locking and position releasing through lever movement;
the supporting leg further comprises a transmission assembly and an operation assembly installed on one leg section, and the operation assembly is in driving connection with the lever locking assembly through the transmission assembly.
The lever locking assembly comprises a locking base, an action component movably arranged on the locking base and a lever component rotatably arranged on the locking base, wherein one end of the lever component is used for being matched and abutted with the action component, and the other end of the lever component is provided with a locking part; the locking base is provided with a rotating cavity for the lever component to rotate, and a return spring is arranged between the locking base and the lever component and is positioned in the rotating cavity;
the transmission assembly drives the action component to push one end of the lever component so as to drive the locking part to lock and release the position of the leg section.
The actuating component comprises a movable steel ball, the locking base is provided with a containing cavity for containing the movable steel ball, openings are formed in two sides of the containing cavity, the diameter of each opening is smaller than that of the movable steel ball, and the transmission component drives the steel ball to protrude out of the opening and then pushes one end of the lever component.
Wherein, one end of the lever component is provided with an anti-abrasion pad body.
The locking base is provided with a pin shaft, the middle of the lever component is provided with a shaft hole, and the pin shaft is movably arranged in the shaft hole in a penetrating mode.
Wherein, be provided with the friction pad on the locking portion.
And two sides of the locking base are provided with sliding holes, and the other leg section adjacent to the locking base is slidably arranged in the sliding holes in a penetrating manner.
The operating assembly is in transmission connection with the other end of the transmission rod, and the transmission cam is in matched abutting connection with the action part;
the operating assembly comprises an operating base, a rotating shaft body rotatably arranged on the operating base, a first bevel gear sleeved on the periphery of the rotating shaft body and a handle connected with the rotating shaft body; and the other end of the transmission rod is provided with a second bevel gear which is in meshing transmission connection with the first bevel gear.
The rotating shaft body is provided with a fixed block, the rotating shaft body is further sleeved with a torsional spring, and two ends of the torsional spring are connected with the fixed block and the operation base respectively.
Wherein, the protruding part of transmission cam is provided with the horizontal segment.
The invention also provides a unipod which comprises a holder, a supporting seat and a supporting leg capable of being locked by the transmission lever, wherein the holder is arranged at the top end of the topmost leg section, and the supporting seat is arranged at the bottom of the bottommost leg section.
The invention also provides a tripod, which comprises a tripod head body and three supporting legs which are rotatably arranged on the tripod head body and can be locked by the transmission lever.
The invention has the beneficial effects that:
the invention has novel structure and ingenious design, when the relative length of the supporting leg needs to be adjusted, namely the supporting leg is extended or shortened, the operating assembly can be used, the operating assembly drives the lever locking assembly to act through the transmission assembly, the leg sections are locked or released in position through the lever locking assembly, mutual axial movement or position locking between the leg sections is realized, and compared with the traditional mode of gradually locking a plurality of joints and loosening the plurality of joints to lock and release positions, the operation is simple and convenient, and the extension and the shortening of the supporting leg are realized.
Drawings
Fig. 1 is a schematic structural diagram of a support leg lockable by an actuating lever in embodiment 1.
FIG. 2 is a partial exploded view showing the supporting leg lockable by the actuating lever according to embodiment 1.
FIG. 3 is an exploded view of the lever lock assembly of the present invention.
Fig. 4 is a schematic structural diagram of an operating assembly of the present invention.
Fig. 5 is a schematic structural view of the drive cam of the present invention.
Fig. 6 is a schematic structural view of embodiment 3.
The reference numerals in fig. 1 to 6 include:
1. a lever locking assembly; 2. a transmission assembly; 3. an operating component;
1a, a first leg section; 1b, a second leg section; 1c, a third leg section;
4. a locking base; 5. a movable steel ball; 6. a lever member; 7. a locking portion; 8. rotating the cavity; 9. a return spring; 10. a cavity; 11. an anti-wear pad body; 12. a pin shaft; 13. a shaft hole;
14. a rubbing pad; 15. a slide hole;
16. a transmission rod; 17. a drive cam;
18. an operating base; 19. a rotation shaft body; 20. a first bevel gear; 21. a handle; 22. a second bevel gear; 23. a fixed block; 24. a torsion spring; 25. a horizontal segment; 26. a drive cavity;
27. the holder body; .
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention is described in detail below with reference to the attached drawings.
Example 1
An actuator lever lockable support leg, as shown in figures 1 to 5, comprising at least two sequentially arranged leg segments, each leg segment being axially movable relative to one or more of the other leg segments to lengthen or shorten the support leg;
the leg sections are provided with lever locking assemblies 1, and the lever locking assemblies 1 can perform position locking and position releasing through lever movement;
the supporting leg further comprises a transmission assembly 2 and an operating assembly 3 installed on one leg section, wherein the operating assembly 3 is in driving connection with the lever locking assembly 1 through the transmission assembly 2.
The invention has the advantages that the structure is novel, the design is ingenious, when the relative length of the supporting leg needs to be adjusted, namely the supporting leg is extended or shortened, the operating assembly 3 can be used, the operating assembly 3 drives the lever locking assembly 1 to act through the transmission assembly 2, the leg sections are locked or released in position through the lever locking assembly 1, the mutual axial movement or the locking of the position between the leg sections is realized, and compared with the traditional mode of gradually locking a plurality of joints and loosening the joints to lock and release the position, the operation is simple and convenient, and the extension and the shortening of the supporting leg are realized.
The supporting leg shown in fig. 1 comprises a first leg section 1a, a second leg section 1b and a third leg section 1c, wherein the lever locking assemblies 1 are arranged at the top end and the bottom end of the second leg section 1b, and the operating assembly 3 is arranged on the first leg section 1 a; in an initial state, the lever locking assembly 1 locks the positions of the first leg section 1a and the second leg section 1b and the positions of the second leg section 1b and the third leg section 1 c; when the operating assembly 3 is operated and the lever locking assembly 1 is driven to act through the transmission assembly 2 to realize position release, the second leg section 1b and the third leg section 1c can axially move to realize length adjustment of the supporting leg.
In this embodiment, the lever locking assembly 1 includes a locking base 4, an action component movably disposed on the locking base 4, and a lever component 6 rotatably disposed on the locking base 4, one end of the lever component 6 is used for being abutted to the action component in a matching manner, and the other end of the lever component 6 is provided with a locking portion 7; the locking base 4 is provided with a rotating cavity 8 for the lever component 6 to rotate, a return spring 9 is arranged between the locking base 4 and the lever component 6, and the return spring 9 is positioned in the rotating cavity 8;
the transmission assembly 2 drives the action component to push one end of the lever component 6 to drive the locking part 7 to perform position locking and position releasing on the leg section.
Preferably, the action component comprises a movable steel ball 5, the locking base 4 is provided with a cavity 10 for accommodating the movable steel ball 5, openings are formed in two sides of the cavity 10, the diameter of each opening is smaller than that of the movable steel ball 5, under the arrangement, the movable steel ball 5 can be ensured to extend out to drive the lever component 6, the movable steel ball 5 can also be ensured to normally work, the movable steel ball 5 is prevented from being separated from the cavity 10, the damage to the device is avoided, the device cannot work, and the structure is reliable; the transmission component 2 drives the steel ball to protrude out of the opening and then pushes one end of the lever component 6.
Specifically, when the operating 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 acting part, namely the movable steel ball 5, the movable steel ball 5 extends out of the opening and acts on one end of the lever part 6, the lever part 6 rotates, and the locking part 7 is driven to lock the position of the leg section; when the transmission component 2 does not drive the lever locking component 1 any more, the lever component 6 resets under the action of the reset spring 9, and pushes the movable steel ball 5 to retract into the accommodating cavity 10 and extend out from the other opening, so that the transmission component 2 can drive the action component next time.
Preferably, the two lever components 6 are symmetrically arranged relative to the movable steel ball 5, when the movable steel ball 5 extends out of the opening of the cavity 10, the two lever components 6 are simultaneously acted on, and the leg sections are simultaneously locked by the two lever components 6, so that the stability and the reliability of locking between the leg sections are further improved.
In this embodiment, an anti-wear pad 11 is disposed at one end of the lever component 6. Specifically, the anti-abrasion pad body 11 can be an anti-abrasion pad body 11 made of soft anti-abrasion materials such as rubber, plastic, silica gel and the like, and is used for being matched and abutted with the movable steel balls 5, so that friction is reduced, the lever component 6 is prevented from being damaged, and the structural reliability is improved. Preferably, the lever component 6 is made of metal; of course, the lever component 6 can also be made of rigid plastic materials, but the lever component 6 made of metal materials is more durable, high in strength and long in service life.
In this embodiment, the locking base 4 is provided with a pin shaft 12, the middle portion of the lever component 6 is provided with a shaft hole 13, and the pin shaft 12 is movably inserted into the shaft hole 13.
In this embodiment, the locking portion 7 is provided with a friction pad 14. Specifically, the friction pad 14 may be a rubber pad, a plastic pad, an anti-wear cloth pad, or the like, and is not particularly limited herein; the purpose is to realize the brake of the leg section and simultaneously avoid the abrasion of the leg section.
In this embodiment, sliding holes 15 are disposed on two sides of the locking base 4, and another leg section adjacent to the locking base 4 is slidably disposed through the sliding holes 15. In particular, the above arrangement facilitates axial movement between the leg sections.
Preferably, the first leg section 1a, the second leg section 1b and the third leg section 1c are all in a row structure, as shown in fig. 1, the second leg section 1b is slidably disposed through the first leg section 1a, and the third leg section 1c is slidably disposed through the second leg section 1 b.
In this embodiment, the transmission assembly 2 includes a transmission rod 16 and a transmission cam 17 disposed on the periphery of the transmission rod 16, the operation assembly 3 is in transmission connection with the other end of the transmission rod 16, and the transmission cam 17 is in fit abutment with the action component;
the operating component 3 comprises an operating base 18, a rotating shaft body 19 rotatably arranged on the operating base 18, a first bevel gear 20 sleeved on the periphery of the rotating shaft body 19 and a handle 21 connected with the rotating shaft body 19;
the other end of the driving rod 16 is provided with a second bevel gear 22 which is in meshing transmission connection with the first bevel gear 20.
Specifically, when the operating assembly 3 acts, a user operates the handle 21, and under the above setting, the driving rod 16 is driven to rotate, the driving rod 16 drives the driving cam 17 to rotate, when the protruding part of the driving cam 17 acts on the acting part (i.e. the movable steel ball 5), the movable steel ball 5 extends out of an opening of the cavity 10 and acts on one end of the lever part 6, so as to drive the lever part 6 to rotate, and the leg part is locked by the locking part 7, so that the length locking of the supporting leg is realized; when the transmission rod 16 continues to rotate and the protruding part of the transmission cam 17 is separated from the movable steel ball 5, the movable steel ball 5 is driven to reset under the action of the reset spring 9, the position of the leg section is released at the moment, and the length of the supporting leg can be adjusted.
Wherein, locking base 4 runs through and is provided with drive cavity 26, drive cam 17 rotate set up in the drive cavity 26, the transfer line 16 slides and wears to locate drive cavity 26 and drive cam 17.
Wherein the number of the transmission cams 17 corresponds one to the number of the lever locking assemblies 1, and each transmission cam 17 acts on each action part.
In this embodiment, the protruding portion of the driving cam 17 is provided with a horizontal section 25. Specifically, when the protruding portion of the transmission cam 17 acts on the action component (i.e., the movable steel ball 5), the movable steel ball 5 extends from an opening of the cavity 10 to act on one end of the lever component 6, the lever component 6 is driven to rotate, and the leg section is locked by the locking portion 7, at this stage, under the action of the horizontal section 25, the horizontal section 25 continuously keeps the movable steel ball 5 to tightly push against the lever component 6, the lever component 6 locks the leg section, so that the leg section and the transmission rod 16 cannot move under the self-weight, and further the transmission rod 16 is locked, thereby avoiding the rotation of the transmission rod 16, avoiding the rotation of the handle 21 from influencing the use effect, realizing the locking effect, avoiding unnecessary accessories and extra locking of parts, and having simple structure and convenient use.
Wherein, the last fixed block 23 that is equipped with of rotation axis body 19, it is equipped with torsional spring 24 still to overlap on the rotation axis body 19, the both ends of torsional spring 24 respectively with the fixed block 23 with operation base 18 is connected, after transmission cam 17 acted on the action part and locked the shank section, under the elastic action of torsional spring 24, drive rotation axis body 19 and slightly reset, avoid the swing of handle 21 rotation.
Certainly, the operating component 3 can also be a micro motor for driving the transmission rod 16 to rotate, and the micro motor is matched with the wireless control module to realize communication connection with the mobile phone, so that the use by a user is facilitated; of course, a control button may also be provided on the operating assembly 3 to control the micro motor.
Example 2
This embodiment 2 has described a unipod, including cloud platform, supporting seat and but the supporting leg of transmission lever locking, the top at the shank section of topmost is installed to the cloud platform, the bottom at the shank section of lowest end is installed to the supporting seat. Specifically, the supporting seat can be a supporting seat used by a unipod in the prior art, and the supporting seat is provided with three detachable and foldable auxiliary legs which are uniformly distributed on the supporting seat, so that the bottom support of the unipod is changed into a tripod support, and the unipod can obtain the stability of a tripod; preferably, the head is removably mounted on the operating base 18, facilitating assembly.
Example 3
Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An actuatable lever lockable support leg comprising at least two sequentially disposed leg segments, each leg segment being axially movable relative to one or more of the other leg segments to lengthen or shorten the support leg; the method is characterized in that:
the leg sections are provided with lever locking assemblies which can perform position locking and position releasing through lever movement;
the supporting leg further comprises a transmission assembly and an operating assembly arranged on one leg section, and the operating assembly is in driving connection with the lever locking assembly through the transmission assembly;
the lever locking assembly comprises 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 for being matched and abutted with the action component, and the other end of the lever component is provided with a locking part;
the transmission assembly drives the action component to push one end of the lever component so as to drive the locking part to lock and release the position of the leg section.
2. The support leg locked by the transmission lever as claimed in claim 1, wherein: the locking base is provided with a rotating cavity for the lever component to rotate, and a return spring is arranged between the locking base and the lever component and is positioned in the rotating cavity.
3. The support leg locked by the transmission lever as claimed in claim 2, wherein: the action component comprises a movable steel ball, the locking base is provided with a cavity for accommodating the movable steel ball, openings are arranged on two sides of the cavity, the diameter of each opening is smaller than that of the movable steel ball, and the transmission component drives the movable steel ball to protrude out of the opening and then pushes one end of the lever component.
4. The support leg locked by the transmission lever as claimed in claim 2, wherein: an anti-abrasion pad body is arranged at one end of the lever component.
5. The support leg locked by the transmission lever as claimed in claim 2, wherein: and the locking part is provided with a friction gasket.
6. The support leg locked by the transmission lever as claimed in claim 2, wherein: and sliding holes are formed in two sides of the locking base, and the other leg section adjacent to the locking base penetrates through the sliding holes in a sliding mode.
7. The support leg locked by the transmission lever as claimed in claim 2, wherein: the transmission assembly comprises a transmission rod and a transmission cam arranged on the periphery of the transmission rod, the operation assembly is in transmission connection with the other end of the transmission rod, and the transmission cam is in matched abutting connection with the action part;
the operating assembly comprises an operating base, a rotating shaft body rotatably arranged on the operating base, a first bevel gear sleeved on the periphery of the rotating shaft body and a handle connected with the rotating shaft body; and the other end of the transmission rod is provided with a second bevel gear which is in meshing transmission connection with the first bevel gear.
8. The support leg locked by the transmission lever as claimed in claim 7, wherein: the protruding part of the transmission cam is provided with a horizontal section.
9. A unipod which characterized in that: comprising a tripod head, a supporting seat and a supporting leg locked by a driving lever according to any one of claims 1 to 8, wherein the tripod head is arranged at the top end of the topmost leg section, and the supporting seat is arranged at the bottom of the bottommost leg section.
10. A tripod, characterized in that: the cradle head comprises a cradle head body and three supporting legs which are rotatably arranged on the cradle head body and can be locked by a transmission lever according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210139221.1A CN114440094A (en) | 2022-02-15 | 2022-02-15 | Supporting leg, unipod and tripod that can drive lever locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210139221.1A CN114440094A (en) | 2022-02-15 | 2022-02-15 | Supporting leg, unipod and tripod that can drive lever locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114440094A true CN114440094A (en) | 2022-05-06 |
Family
ID=81373176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210139221.1A Pending CN114440094A (en) | 2022-02-15 | 2022-02-15 | Supporting leg, unipod and tripod that can drive lever locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114440094A (en) |
-
2022
- 2022-02-15 CN CN202210139221.1A patent/CN114440094A/en active Pending
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