CN218064276U - Supporting leg capable of being quickly stretched and changed - Google Patents
Supporting leg capable of being quickly stretched and changed Download PDFInfo
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- CN218064276U CN218064276U CN202222041076.1U CN202222041076U CN218064276U CN 218064276 U CN218064276 U CN 218064276U CN 202222041076 U CN202222041076 U CN 202222041076U CN 218064276 U CN218064276 U CN 218064276U
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Abstract
The utility model relates to the technical field of photographic and video equipment, in particular to a supporting leg capable of being quickly stretched and changed, which comprises an outer leg section, a middle leg section and an inner leg section, wherein each leg section can axially move relative to one or more of other leg sections to extend or shorten the supporting leg; the outer leg section is provided with a control mechanism, one end of the middle leg section is provided with a first leg brake, and the other end of the middle leg section is provided with a second leg brake; the support leg also includes a transmission assembly. The utility model discloses novel structure, design benefit, convenient to use, the structure is reliable, user operation control mechanism can realize that the position between outside shank section, middle shank section and the inside shank section is injectd, avoids traditional needs to close the complicated operation that could fix through screw or screw thread twist, and convenient to use realizes locking each other between outside shank section, middle shank section and the inside shank section.
Description
Technical Field
The utility model belongs to the technical field of the equipment technique of making a video recording of photography and specifically relates to indicate a supporting leg that can stretch out and draw back fast and alternate.
Background
Tripods are known for use where support needs to be provided in a stable manner, and may be used with equipment such as cameras or theodolites while the equipment is in operation. The tripod firstly reduces the risk of movement of the device that occurs during such operations and leaves the operator free to perform other tasks. A typical tripod comprises a platform mounted on legs, each leg being mounted at an equal distance from the other two legs. To this end, the tripod may be provided with independent telescopic legs and wherein the legs have two or more leg sections of different diameters which are slidable relative to one another to vary the leg length. When at the correct length, the leg sections are locked in position. At present, the leg adjusting structure of a tripod is complex, the operation is inconvenient, the reliability is poor, most legs can be fixed only by screwing screws or threads, the locking between the two legs can be controlled, the operation time is long, and the working efficiency is low.
Disclosure of Invention
The utility model discloses problem to prior art provides a supporting leg that can stretch out and draw back fast and alternate, novel structure, design benefit, convenient to use, the structure is reliable, user operation control mechanism can realize that the position between outside shank section, middle shank section and the inside shank section is injectd, avoids traditional needs to close the complicated operation that could fix through screw or screw thread twist, and convenient to use realizes locking each other between outside shank section, middle shank section and the inside shank section.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a can quick flexible supporting leg that changes, the supporting leg includes outside leg section, middle leg section and inside leg section, and each leg section can move axially relative to one or more in other leg sections to extend or shorten the supporting leg;
the outer leg section is provided with a control mechanism, one end of the middle leg section is provided with a first leg brake, and the other end of the middle leg section is provided with a second leg brake;
the outer leg section is slidably sleeved on the periphery of the middle leg section, the inner leg section is sleeved on the inner wall of the middle leg section, the first leg brake is used for braking the outer leg section to prevent relative movement, and the second leg brake is used for braking the inner leg section to prevent relative movement;
the supporting leg still includes transmission assembly, control mechanism with transmission assembly drive is connected, transmission assembly with first shank stopper and second shank stopper transmission are connected.
Wherein, control mechanism includes the control base, rotates to set up in the control axis body of control base, cover and establish the control bevel gear of control axis body periphery and with the control handle of being connected of axis body, the control bevel gear with the transmission assembly drive is connected, and the control base is installed the one end that middle shank section was kept away from to outside leg section.
The transmission assembly comprises a transmission rotating shaft body, a transmission bevel gear and a fixed shaft sleeve, the transmission bevel gear is sleeved at one end of the transmission rotating shaft body, the fixed shaft sleeve is sleeved at the other end of the transmission rotating shaft body, and the fixed shaft sleeve is provided with a lifting chute.
The first leg brake comprises a first base, a first brake body, a first brake arm and a first brake block connected to one end of the first brake arm, the first base is mounted at one end of the middle leg section, the first brake body is arranged on the first base in a vertically sliding mode, the first brake body is provided with a first lifting guide pillar which is matched with the lifting chute to slide, and the first brake arm is rotatably arranged on the first base;
the transmission assembly further comprises a transmission long rod, one end of the transmission long rod is connected with the first brake body, the other end of the transmission long rod is connected with the second leg brake in a transmission mode, the other end of the first brake arm is hinged to the transmission long rod, and the first brake block is used for stopping the inner wall of the external leg section in a butt mode.
The first brake body is further provided with a second lifting guide pillar which is matched with the vertical sliding groove to slide, the first lifting guide pillar is arranged in the vertical sliding groove in a sliding mode, and the first lifting guide pillar penetrates through the vertical sliding groove and then is connected with the lifting chute in a sliding mode.
Wherein the second leg brake includes a second base mounted to the other end of the middle leg section, a second brake arm rotatably mounted to the second base, and a second brake pad connected to one end of the second brake arm; the second brake arm is hinged with the other end of the long transmission rod; the second brake pad is for abuttingly braking an inner wall of the inner leg section.
The second base is provided with a limiting sliding groove, and the long transmission rod penetrates through the limiting sliding groove in a sliding mode.
The control shaft body is fixedly sleeved with a limiting sleeve, and two positioning grooves are formed in the periphery of the limiting sleeve at intervals;
the locating component comprises an installation block, a locating spring and a locating steel ball, the installation block is fixed on the control base, the installation block is provided with an accommodating groove, the locating spring is installed in the accommodating groove, one end of the locating spring is connected with the inner wall of the accommodating groove, the other end of the locating spring is connected with the locating steel ball, the locating steel ball protrudes out of the accommodating groove, the locating steel ball is correspondingly arranged with the locating groove, and the locating steel ball is abutted to the locating groove in a matched mode and used for limiting the position of the limiting sleeve.
The utility model has the advantages that:
the utility model discloses novel structure, design benefit, outside shank section can for the periphery of middle shank section removes, and the user can manually stimulate control mechanism, under drive assembly's effect, the linkage orders about first shank stopper and second shank stopper are made simultaneously and are stopped outside shank section and inside shank section to inject outside shank section, inside shank section for the position of middle shank section, convenient to use, the structure is reliable, user operation control mechanism can realize that the position between outside shank section, middle shank section and the inside shank section is injectd, avoids traditional needs to twist through screw or screw thread and closes the complicated operation that just can fix, and convenient to use realizes locking each other between outside shank section, middle shank section and the inside shank section.
Drawings
Fig. 1 is a schematic structural diagram of a supporting leg capable of fast telescoping and changing of the present invention.
Fig. 2 is a perspective view of the supporting leg of the present invention capable of fast telescoping and changing.
Fig. 3 is a schematic structural view of the utility model after the outer leg section and the middle leg section are hidden.
Fig. 4 is the structure diagram of the present invention after hiding the outer leg section, the middle leg section and the inner leg section.
Fig. 5 is an exploded view of the first leg brake of the present invention.
Fig. 6 is an exploded view of the fixed sleeve, the first brake body, the first brake arm and the first brake pad of the present invention.
Fig. 7 is an exploded view of the control mechanism of the present invention.
Fig. 8 is a schematic structural view of the stop collar of the present invention.
The reference numerals in fig. 1 to 8 include:
1. an outer leg section; 2. a middle leg section; 3. an inner leg section; 4. a control mechanism; 5. a first leg brake; 6. a second leg brake; 7. a control base; 8. a control shaft body; 9. A control bevel gear; 10. swinging the hands; 11. a transmission shaft body; 12. a transmission bevel gear; 13. fixing the shaft sleeve; 14. a lifting chute; 15. a first base; 16. a first brake body; 17. a first brake arm; 18. a first brake pad; 19. a first lifting guide post; 20. a long transmission rod; 21. A vertical chute; 22. a second lifting guide pillar; 23. a second base; 24. a second brake arm; 25. A second brake pad; 26. a limiting chute; 27. a positioning assembly; 28. a limiting sleeve; 29. positioning a groove; 30. mounting blocks; 31. a positioning spring; 32. and positioning the steel ball.
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 will be described in detail with reference to the accompanying drawings.
A rapidly telescopically convertible support leg, as shown in figures 1 to 8, comprising an outer leg section 1, an intermediate leg section 2 and an inner leg section 3, each leg section being axially movable relative to one or more of the other leg sections to lengthen or shorten the support leg;
the outer leg section 1 is provided with a control mechanism 4, one end of the middle leg section 2 is provided with a first leg brake 5, and the other end of the middle leg section 2 is provided with a second leg brake 6;
the outer leg section 1 is slidably sleeved on the periphery of the middle leg section 2, the inner leg section 3 is sleeved on the inner wall of the middle leg section 2, the first leg brake 5 is used for braking the outer leg section 1, and the second leg brake 6 is used for braking the inner leg section 3;
the supporting leg further comprises a transmission assembly, the control mechanism is in driving connection with the transmission assembly, and the transmission assembly is in driving connection with the first leg brake 5 and the second leg brake 6.
The utility model discloses novel structure, and is novel in design, outside shank section 1 can remove for middle shank section 2's periphery, the user can manual pulling control mechanism 4, under drive assembly's effect, the linkage orders about first shank stopper 5 and second shank stopper 6, make simultaneously and stop outside shank section 1 and inside shank section 3, in order to inject outside shank section 1, inside shank section 3 is for middle shank section 2's position, high durability and convenient use, the structure is reliable, user operation control mechanism 4 can realize outside shank section 1, position between middle shank section 2 and the inside shank section 3 is injectd, avoid traditional needs to close the complicated operation that could fix through screw or screw thread twist, high durability and convenient use, realize outside shank section 1, lock each other between middle shank section 2 and the inside shank section 3.
In the supporting leg capable of rapidly extending and retracting, the control mechanism 4 comprises a control base 7, a control shaft 8 rotatably arranged on the control base 7, a control bevel gear 9 sleeved on the periphery of the control shaft 8, and a hand lever 10 connected with the control shaft 8, the control bevel gear 9 is in drive connection with the transmission assembly, and the control base 7 is arranged at one end of the outer leg section 1 far away from the middle leg section 2.
The transmission assembly comprises a transmission rotating shaft body 11, a transmission bevel gear 12 sleeved at one end of the transmission rotating shaft body 11 and a fixed shaft sleeve 13 sleeved at the other end of the transmission rotating shaft body 11, and the fixed shaft sleeve 13 is provided with a lifting chute 14.
The first leg brake 5 comprises a first base 15, a first brake body 16, a first brake arm 17 and a first brake block 18 connected to one end of the first brake arm 17, the first base 15 is mounted at one end of the middle leg section 2, the first brake body 16 is arranged on the first base 15 in a vertically sliding manner, the first brake body 16 is provided with a first lifting guide pillar 19 which is matched with the lifting chute 14 to slide, and the first brake arm 17 is rotatably arranged on the first base 15;
the drive assembly still includes transmission stock 20, and the one end and the first stopper body 16 of transmission stock 20 are connected, and the other end and the transmission of second shank stopper 6 of transmission stock 20 are connected, and the other end and the transmission stock 20 of first brake arm 17 are articulated, and first brake block 18 is used for carrying out the butt system to the inner wall of outside shank section 1 and stops.
In the supporting leg capable of rapidly expanding and contracting, the second leg brake 6 comprises a second base 23, a second brake arm 24 and a second brake block 25 connected to one end of the second brake arm 24, the second base 23 is mounted at the other end of the middle leg section 2, and the second brake arm 24 is rotatably arranged on the second base 23; the second brake arm 24 is hinged with the other end of the long transmission rod 20; the second brake shoe 25 is used for stopping the inner wall of the inner leg section 3 from abutting.
The first base 15 is provided with a vertical sliding groove 21, the first brake body 16 is further provided with a second lifting guide pillar 22 which is matched with the vertical sliding groove 21 to slide, the first lifting guide pillar 19 is arranged in the vertical sliding groove 21 in a sliding mode, and the first lifting guide pillar 19 penetrates through the vertical sliding groove 21 and then is connected with the lifting chute 14 in a sliding mode.
In particular, the working principle of cooperation between the control mechanism 4, the transmission assembly, the first leg brake 5 and the second leg brake 6 is as follows: a user pulls the swing arm 10 to drive the control shaft body 8 to rotate, the control bevel gear 9 rotates along with the control shaft body 8, the control bevel gear 9 rotates to drive the transmission bevel gear 12 to rotate, the transmission rotating shaft body 11 is driven to rotate to drive the fixed shaft sleeve 13 to rotate under the rotation of the transmission bevel gear 12, the first lifting guide pillar 19 is driven to move up and down under the action of the lifting chute 14 to drive the first brake body 16 to move up and down, the transmission long rod 20 is driven to move up and down, the first brake arm 17 rotates, the first brake block 18 is enabled to abut against or be far away from the inner wall of the outer leg section 1, so that the brake or release of the outer leg section 1 is realized, and the position limitation and adjustment between the middle leg section 2 and the outer leg section 1 are realized; wherein, a side wall of the first brake block 18 close to the outer leg section 1 is provided with an anti-skid rubber mat to realize the friction butt joint of the outer leg section 1;
wherein the second brake arm 24 is further rotated under the action of the lifting movement of the long transmission rod 20, so that the first brake block 18 is abutted against or away from the outer wall of the inner leg section 3 to realize braking or releasing of the inner leg section 3 to realize position limitation and adjustment between the middle leg section 2 and the inner leg section 3; wherein, one side wall of the second brake block 25 close to the inner leg section 3 is provided with an anti-skid rubber mat to realize the friction butt joint of the inner leg section 3;
further, when the transmission rotating shaft body 11 rotates counterclockwise around the axis thereof, the fixed shaft sleeve 13 is driven to rotate, under the action of the lifting chute 14, the first brake body 16 is lifted, the long transmission rod 20 is lifted, the first brake block 18 rotates to be close to the inner wall of the outer leg section 1, and the inner wall of the outer leg section 1 is abutted and stopped through the first brake block 18; meanwhile, in the process that the long transmission rod 20 is lifted, the second brake arm 24 is driven to rotate, so that the second brake block 25 rotates to be close to the outer wall of the inner leg section 3, the outer wall of the inner leg section 3 is abutted and stopped through the second brake block 25, and the position limitation among the outer leg section 1, the middle leg section 2 and the inner leg section 3 is realized simultaneously, the use is convenient, and the structure is reliable; the release adjusting position and the relative position among the external leg section 1, the middle leg section 2 and the internal leg section 3 are convenient to limit, and the use is convenient and reliable.
Wherein, through the above-mentioned description, can realize linkage locking and release between three shank section or three shank section more than, adjust convenient and reliable.
The supporting leg of a very quick flexible transform of this embodiment, second base 23 are provided with spacing spout 26, and transmission stock 20 slides and wears to locate spacing spout 26. Specifically, the arrangement ensures that the transmission long rod 20 has good stability in the moving process, does not deviate, slides in the direction limited by the limit sliding groove 26, and has reliable structure and high working stability.
In the support leg capable of being rapidly stretched and retracted and changed in the embodiment, the control base 7 is further provided with a positioning assembly 27, a limiting sleeve 28 is fixedly sleeved on the periphery of the control shaft body 8, and two positioning grooves 29 are arranged on the periphery of the limiting sleeve 28 at intervals;
locating component 27 includes installation piece 30, positioning spring 31 and location steel ball 32, and installation piece 30 is fixed on control base 7, and installation piece 30 is provided with holds the groove, and positioning spring 31 installs and holds the inslot, and positioning spring 31's one end is connected in the inner wall that holds the groove, and positioning spring 31's the other end is connected with location steel ball 32, and location steel ball 32 stretches out suddenly and holds the groove, and location steel ball 32 corresponds the setting with constant head tank 29, and location steel ball 32 cooperates the butt with constant head tank 29 to be used for injecing the position of stop collar 28.
Specifically, under the action of the positioning spring 31 and the steel ball, when the steel ball is in fit abutment with one of the positioning grooves 29 to limit the hand piece 10, that is, limit and fix the control shaft body 8, so as to prevent the control shaft body from rotating under the condition of no external force, and meanwhile, one of the positioning grooves 29 defines a locking position for positions among the outer leg section 1, the middle leg section 2 and the inner leg section 3; another detent 29 is a position release location between outer leg section 1, middle leg section 2 and inner leg section 3;
when the user operates the swing arm 10, the control shaft body 8 rotates, the steel balls are pressed against the control shaft body, the positioning spring 31 is compressed until the control shaft body 8 is driven to rotate to a corresponding position, meanwhile, the stop collar 28 is driven to rotate to a corresponding position, another positioning groove 29 of the stop collar 28 is utilized to reach a position corresponding to the steel balls, the positioning spring 31 is released to be extended, the steel balls are popped into the another positioning groove 29 to be clamped in the another positioning groove 29, the position of the stop collar 28 is limited, and therefore the position of the control shaft body 8 is limited, the structure is reliable, the use is convenient, the position adjustment is reliable, the looseness is not prone to occurring, under the condition that the control shaft body 8 is locked, the position of the transmission rotating shaft body 11 is locked, and the position limitation among the external leg section 1, the middle leg section 2 and the internal leg section 3 can be guaranteed.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (8)
1. The utility model provides a supporting leg that can change by quick flexible which characterized in that: the support leg including an outer leg section, an intermediate leg section and an inner leg section, each leg section being axially movable relative to one or more of the other leg sections to lengthen or shorten the support leg;
the outer leg section is provided with a control mechanism, one end of the middle leg section is provided with a first leg brake, and the other end of the middle leg section is provided with a second leg brake;
the outer leg section is slidably sleeved on the periphery of the middle leg section, the inner leg section is sleeved on the inner wall of the middle leg section, the first leg brake is used for braking the outer leg section to prevent relative movement, and the second leg brake is used for braking the inner leg section to prevent relative movement;
the supporting leg further comprises a transmission assembly, the control mechanism is in driving connection with the transmission assembly, and the transmission assembly is in transmission connection with the first leg brake and the second leg brake.
2. The rapidly telescopically changeable support leg according to claim 1, wherein: the control mechanism comprises a control base, a control shaft body, a control bevel gear and a hand swing, the control shaft body is rotatably arranged on the control base, the control bevel gear is sleeved on the periphery of the control shaft body, the hand swing is connected with the control shaft body, the control bevel gear is in driving connection with the transmission assembly, and the control base is arranged at one end, far away from the middle leg section, of the outer leg section.
3. A rapidly telescopically changeable support leg according to claim 1, wherein: the transmission assembly comprises a transmission rotating shaft body, a transmission bevel gear and a fixing shaft sleeve, the transmission bevel gear is sleeved at one end of the transmission rotating shaft body, the fixing shaft sleeve is sleeved at the other end of the transmission rotating shaft body, and the fixing shaft sleeve is provided with a lifting chute.
4. A rapidly telescopically changeable support leg according to claim 3, wherein: the first leg brake comprises a first base, a first brake body, a first brake arm and a first brake block connected to one end of the first brake arm, the first base is mounted at one end of the middle leg section, the first brake body is arranged on the first base in a vertically sliding mode, the first brake body is provided with a first lifting guide pillar matched with the lifting chute to slide, and the first brake arm is rotatably arranged on the first base;
the transmission assembly further comprises a transmission long rod, one end of the transmission long rod is connected with the first brake body, the other end of the transmission long rod is connected with the second leg brake in a transmission mode, the other end of the first brake arm is hinged to the transmission long rod, and the first brake block is used for abutting and stopping the inner wall of the external leg section.
5. The rapidly telescopically changeable support leg according to claim 4, wherein: the first brake body is further provided with a second lifting guide pillar which is matched with the vertical sliding groove to slide, the first lifting guide pillar is arranged in the vertical sliding groove in a sliding mode, and the first lifting guide pillar penetrates through the vertical sliding groove and then is connected with the lifting chute in a sliding mode.
6. A rapidly telescopically changeable support leg according to claim 4, wherein: the second leg brake comprises a second base, a second brake arm and a second brake block connected to one end of the second brake arm, the second base is mounted at the other end of the middle leg section, and the second brake arm is rotatably mounted on the second base; the second brake arm is hinged with the other end of the long transmission rod; the second brake pad is for abutting braking an inner wall of the inner leg section.
7. A rapidly telescopically changeable support leg according to claim 6, wherein: the second base is provided with a limiting sliding groove, and the long transmission rod penetrates through the limiting sliding groove in a sliding mode.
8. A rapidly telescopically changeable support leg according to claim 2, wherein: the control base is also provided with a positioning assembly, the periphery of the control shaft body is fixedly sleeved with a limiting sleeve, and two positioning grooves are arranged at the periphery of the limiting sleeve at intervals;
the locating component comprises an installation block, a locating spring and a locating steel ball, the installation block is fixed on the control base, the installation block is provided with a containing groove, the locating spring is installed in the containing groove, one end of the locating spring is connected to the inner wall of the containing groove, the other end of the locating spring is connected with the locating steel ball, the locating steel ball stretches out of the containing groove, the locating steel ball corresponds to the locating groove, and the locating steel ball is abutted to the locating groove in a matched mode and used for limiting the position of the limiting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222041076.1U CN218064276U (en) | 2022-08-03 | 2022-08-03 | Supporting leg capable of being quickly stretched and changed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222041076.1U CN218064276U (en) | 2022-08-03 | 2022-08-03 | Supporting leg capable of being quickly stretched and changed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218064276U true CN218064276U (en) | 2022-12-16 |
Family
ID=84401310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222041076.1U Active CN218064276U (en) | 2022-08-03 | 2022-08-03 | Supporting leg capable of being quickly stretched and changed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218064276U (en) |
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2022
- 2022-08-03 CN CN202222041076.1U patent/CN218064276U/en active Active
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