CN217978230U

CN217978230U - Quick telescopic locking device of foot rest supporting leg

Info

Publication number: CN217978230U
Application number: CN202222039926.4U
Authority: CN
Inventors: 梁志豪
Original assignee: Dongguan Yangcong Network Technology Co ltd
Current assignee: Dongguan Yangcong Network Technology Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-12-06
Anticipated expiration: 2032-08-03

Abstract

The utility model belongs to the technical field of photographic goods drive mechanism technique and specifically relates to indicate a quick flexible locking means of foot rest supporting leg, it includes control mechanism, drive assembly, first locking mechanism and second locking mechanism, control mechanism with the drive assembly drive is connected, the drive assembly includes the transmission pivot body and transmission stock, control mechanism passes through the transmission pivot body with the transmission of first locking mechanism is connected, first locking mechanism passes through the transmission stock with the transmission of second locking mechanism is connected. The utility model discloses novel structure can link and order about first locking mechanism and second locking mechanism stop outside shank section and inside shank section simultaneously to injecing outside shank section, inside shank section for the position of middle shank section, convenient to use, the structure is reliable, avoids traditional needs to twist through screw or screw and closes the complicated operation that just can fix, convenient to use.

Description

Quick telescopic locking device of foot rest supporting leg

Technical Field

The utility model belongs to the technical field of photographic goods drive mechanism technique and specifically relates to indicate a quick flexible locking means of foot rest supporting leg.

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 independently telescopic legs and wherein the legs have two or more leg sections of different diameter 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, can the shank of tripod adjust the structure complicacy, the operation is inconvenient, and the reliability is poor, and the majority closes for screw or screw thread to fix moreover, can only control the locking between two legs moreover, operating time is long, work efficiency is low, consequently needs a tripod supporting leg of being convenient for to carry out the device of flexible regulation locking urgently.

Disclosure of Invention

The utility model discloses problem to prior art provides a quick flexible locking means of tripod supporting leg, novel structure, design benefit can link and order about first locking mechanism and second locking mechanism stop outside shank section and inside shank section simultaneously and make to injecing outside shank section, inside shank section for the position of middle shank section, convenient to use, the structure is reliable, avoids traditional needs to twist through screw or screw and closes the complicated operation that just can fix, and convenient to use realizes locking each other between the outside shank section of tripod supporting leg, 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 pair of quick flexible locking means of foot rest supporting leg, including control mechanism, drive assembly, first locking mechanism and second locking mechanism, control mechanism with the drive assembly drive is connected, drive assembly includes the transmission pivot body and transmission stock, control mechanism passes through the transmission pivot body with the transmission of first locking mechanism is connected, first locking mechanism passes through the transmission stock with the transmission of second locking mechanism is connected, first locking mechanism and second locking mechanism all are used for releasably preventing the shank section relative movement of supporting leg.

The control mechanism comprises a control base, a control shaft body rotatably arranged on the control base, a control bevel gear sleeved on the periphery of the control shaft body and a hand-waving connected with the control shaft body.

The transmission assembly further comprises a transmission bevel gear sleeved at one end of the transmission rotating shaft body and a fixing shaft sleeve sleeved at the other end of the transmission rotating shaft body, the fixing shaft sleeve is provided with a lifting chute, and the transmission bevel gear is in driving connection with the control mechanism.

The first locking mechanism 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;

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 locking mechanism 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 of the external support leg.

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.

The second locking mechanism 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 arranged at the other end of the middle leg section of the outside supporting leg, and the second brake arm is rotatably arranged on the second base; the second brake arm is hinged with the other end of the long transmission rod; the second brake block is used for abutting and stopping the inner wall of the inner leg section of the external support leg.

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 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.

The utility model has the advantages that:

the utility model discloses novel structure, design benefit, the user can manually stimulate control mechanism, under the effect of the transmission pivot body of drive assembly and transmission stock, the linkage is ordered about first locking mechanism and second locking mechanism, make simultaneously and stop 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 of supporting leg is injectd, avoids traditional needs to close the complex operation that just can fix through screw or screw thread twist, and convenient to use realizes locking each other between the outside shank section, middle shank section and the inside shank section of tripod supporting leg.

Drawings

Fig. 1 is the utility model discloses be applied to the structural schematic diagram of tripod supporting leg.

Fig. 2 is the utility model discloses a quick telescopic locking device's of foot rest supporting leg structural schematic diagram.

Fig. 3 is a partial structure exploded view of the quick telescopic locking device of the foot stool supporting leg of the present invention.

Fig. 4 is an exploded view of the first locking mechanism of the present invention.

Fig. 5 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. 6 is an exploded view of the control mechanism of the present invention.

Fig. 7 is a schematic structural view of the stop collar of the present invention.

The reference numerals in fig. 1 to 7 include:

1. an outer leg section; 2. a middle leg section; 3. an inner leg section; 4. a control mechanism; 5. a first locking mechanism; 6. a second locking mechanism; 7. a control base; 8. a control shaft body; 9. a control bevel gear; 10. swinging the hands; 11. a transmission rotating 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 pillar; 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. positioning the steel balls; 100. and (5) supporting legs.

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.

The utility model provides a quick flexible locking means of foot rest supporting leg, as shown in fig. 1 to 7, includes control mechanism 4, drive assembly, first locking mechanism 5 and second locking mechanism 6, control mechanism 4 with the drive assembly drive is connected, the drive assembly includes transmission pivot body 11 and transmission stock 20, control mechanism 4 passes through transmission pivot body 11 with 5 transmissions of first locking mechanism are connected, first locking mechanism 5 passes through transmission stock 20 with 6 transmissions of second locking mechanism are connected.

In particular, the present invention is used in a support leg 100 of a tripod; tripod support leg 100 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 said support leg 100; the control mechanism 4 is mounted on the outer leg section 1, the first locking mechanism 5 is mounted on one end of the middle leg section 2, and the second locking mechanism 6 is mounted on the other end of the middle leg section 2;

the utility model discloses novel structure, design benefit, outside shank section 1 can remove for middle shank section 2's periphery, and the user can manually stimulate control mechanism 4, under transmission pivot body 11 and transmission stock 20's of drive assembly effect, the linkage orders about first locking mechanism 5 and second locking mechanism 6, stop outside shank section 1 and inside shank section 3 simultaneously to injecing outside shank section 1, inside shank section 3 for the position of middle shank section 2, first locking mechanism 5 and second locking mechanism 6 releasably prevent outside shank section 1, inside shank section 3 for middle shank section 2 removes, convenient to use, the structure is reliable, user operation control mechanism 4 can realize that the position between outside shank section 1, middle shank section 2 and the inside shank section 3 is injecied, avoids traditional complicated operation that just can fix through screw or screw thread twist, convenient to use realizes the locking each other between the outside shank section 1, middle shank section 2 and the inside shank section 3 of tripod.

This embodiment a quick flexible locking means of foot rest supporting leg, control mechanism 4 includes control base 7, rotates to set up in control axis body 8, the cover of control base 7 and establish the control bevel gear 9 of control axis body 8 periphery and with the hand of waving 10 that control axis body 8 is connected.

The transmission assembly further comprises 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, the fixed shaft sleeve 13 is provided with a lifting chute 14, and the transmission bevel gear 12 is in driving connection with the control mechanism 4.

The first locking mechanism 5 includes 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 slidably disposed on the first base 15 up and down, the first brake body 16 is provided with a first lifting guide post 19 sliding in cooperation with the lifting chute 14, and the first brake arm 17 is rotatably disposed on the first base 15;

one end of the long transmission rod 20 is connected with the first brake body 16, the other end of the long transmission rod 20 is in transmission connection with the second locking mechanism 6, the other end of the first brake arm 17 is hinged to the long transmission rod 20, and the first brake block 18 is used for abutting and stopping the inner wall of the external leg section 1 of the external support leg.

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 slidably arranged in the vertical sliding groove 21, and the first lifting guide pillar 19 penetrates through the vertical sliding groove 21 and then is slidably connected with the lifting chute 14.

The second locking mechanism 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 of the outside supporting leg, 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 to stop the inner wall of the inner leg section 3 of the outside support leg against abutment.

Specifically, the cooperation working principle among the control mechanism 4, the transmission assembly, the first locking mechanism 5 and the second locking mechanism 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 transmission bevel gear 12 is driven to rotate along with the rotation of the control bevel gear 9, the transmission rotating shaft body 11 is driven to rotate under the rotation of the transmission bevel gear 12 to drive the fixed shaft sleeve 13 to rotate, 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 is driven to rotate, the first brake block 18 is abutted against or away from the inner wall of the outer leg section 1 of the outer supporting leg, so that the outer leg section 1 of the outer supporting leg is stopped or released, and the position between the middle leg section 2 and the outer leg section 1 of the outer supporting leg is limited and adjusted; wherein, a side wall of the first brake block 18 close to the outer leg section 1 of the external support leg is provided with an anti-skid rubber mat to realize the friction butt joint of the outer leg section 1 of the external support leg;

under the action of the lifting movement of the long transmission rod 20, the second brake arm 24 is further driven to rotate, so that the first brake block 18 is abutted against or away from the outer wall of the inner leg section 3 of the external support leg, the brake stop or release of the inner leg section 3 of the external support leg is realized, and the position limitation and adjustment between the middle leg section 2 and the inner leg section 3 of the external support leg are realized; wherein, the second brake block 25 is provided with an anti-skid rubber mat on one side wall of the inner leg section 3 close to the outside supporting leg so as to realize the friction butt joint of the inner leg section 3;

further, when the transmission rotating shaft body 11 rotates around the axis thereof counterclockwise, 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 external leg section 1 of the external supporting leg, and the inner wall of the external leg section 1 of the external supporting leg 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 of the external support leg, and the outer wall of the inner leg section 3 of the external support leg is abutted and stopped through the second brake block 25, so that the position limitation among the outer leg section 1, the middle leg section 2 and the inner leg section 3 of the external support leg is realized at the same time, 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 description, the linkage locking and releasing between the three leg sections or more than three leg sections with the supporting leg of the utility model can be realized, and the adjustment is convenient and reliable; in use, control base 7 is mounted on the outer leg section 1 of an external support leg, first base 15 is mounted on the end of intermediate leg section 2 adjacent to outer leg section 1, and second base 23 is mounted on the end of intermediate leg section 2 adjacent to inner leg section 3.

In the quick telescopic locking device of the foot stool supporting leg, the second base 23 is provided with the limiting sliding groove 26, and the long transmission rod 20 is slidably arranged in the limiting sliding groove 26 in a penetrating manner. Specifically, the arrangement makes the long transmission rod 20 have good stability in the moving process, and the long transmission rod cannot deviate, slides in the direction limited by the limiting sliding groove 26, and has a reliable structure and high working stability.

According to the rapid telescopic locking device for the tripod supporting leg, 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 formed in the periphery of the limiting sleeve 28 at intervals;

locating component 27 includes installation piece 30, positioning spring 31 and location steel ball 32, installation piece 30 is fixed on the control pedestal 7, installation piece 30 is provided with and holds the groove, positioning spring 31 installs and holds the inslot, positioning spring 31's one end connect in hold the inner wall in groove, positioning spring 31's the other end with location steel ball 32 is connected, location steel ball 32 stretches out suddenly hold the groove, location steel ball 32 with constant head tank 29 corresponds the setting, location steel ball 32 with constant head tank 29 cooperation butt is 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 position between the outer leg section 1, the middle leg section 2 and the inner leg section 3;

wherein, the user is in the operation during hand pendulum 10 for 8 rotations of control axis body, support and press the steel ball, make positioning spring 31 compressed, until driving 8 rotations of control axis body are to corresponding position, drive simultaneously stop collar 28 rotates to corresponding position, utilizes another constant head tank 29 of stop collar 28 to reach the position that corresponds with the steel ball, and positioning spring 31 release is prolonged and is expanded, and the steel ball is gone into the card and is established and realize prescribing a limit to the position of stop collar 28 in another constant head tank 29 in order to carry out the position to control axis body 8 and prescribe a limit to, and reliable in construction, convenient to use, position control is reliable, and is difficult not hard up, under the circumstances of 8 lockings of control axis body, and the position locking of transmission pivot body 11 can guarantee to use the utility model discloses an external leg section 1, middle leg section 2 and the position between the internal leg section 3 three of supporting leg are prescribed a limit to.

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

1. The utility model provides a quick flexible locking means of foot rest supporting leg which characterized in that: including control mechanism, transmission assembly, first locking mechanism and second locking mechanism, control mechanism with the transmission assembly drive is connected, transmission assembly includes transmission pivot body and transmission stock, control mechanism passes through the transmission pivot body with first locking mechanism transmission is connected, first locking mechanism passes through the transmission stock with the transmission of second locking mechanism is connected, first locking mechanism and second locking mechanism all are used for releasably preventing the shank section relative movement of supporting leg.

2. The rapid telescopic locking device of a horse supporting leg as claimed in claim 1, wherein: the control mechanism comprises a control base, a control shaft body rotatably arranged on the control base, a control bevel gear sleeved on the periphery of the control shaft body and a hand swing connected with the control shaft body.

3. The rapid telescopic locking device of a horse supporting leg as claimed in claim 1, wherein: the transmission assembly further comprises a transmission bevel gear sleeved at one end of the transmission rotating shaft body and a fixing shaft sleeve sleeved at the other end of the transmission rotating shaft body, the fixing shaft sleeve is provided with a lifting chute, and the transmission bevel gear is in driving connection with the control mechanism.

4. A quick telescopic locking device of a horse supporting leg according to claim 3, characterized in that: the first locking mechanism 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 arranged 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;

5. The rapid telescopic locking device of a horse supporting leg as claimed in claim 4, wherein: the first base is provided with a vertical sliding groove, 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. The rapid telescopic locking device of a horse supporting leg as claimed in claim 4, wherein: the second locking mechanism 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 arranged at the other end of the middle leg section of the external support leg, and the second brake arm is rotatably arranged on the second base; the second brake arm is hinged with the other end of the long transmission rod; and the second brake block is used for abutting and stopping the inner wall of the inner leg section of the outside supporting leg.

7. The rapid telescopic locking device of a horse supporting leg as claimed in 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. The quick telescopic locking device of a horse supporting leg according to claim 2, characterized in that: 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;