CN210372706U

CN210372706U - Connecting structure and tripod adopting same

Info

Publication number: CN210372706U
Application number: CN201921286850.7U
Authority: CN
Inventors: 刘涛荣
Original assignee: Shenzhen Amido Technology Co ltd
Current assignee: Shenzhen Amido Technology Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-04-21
Anticipated expiration: 2029-08-07

Abstract

The utility model provides a connecting structure and a tripod adopting the connecting structure, wherein the connecting structure comprises a rotating shaft fork and a foot tube seat, the rotating shaft fork is pivotally connected with the foot pipe seat through a rotating shaft, at least one non-return tooth is arranged on the rotating shaft fork, a lock button, a lock hook and an elastic component are arranged on one side of the foot tube seat close to the rotating shaft fork, the elastic component is arranged between the lock hook and the foot tube seat, wherein the non-return teeth are mutually meshed with the locking hooks to lock the rotating shaft fork and the foot tube seat, the locking button is configured to be matched with the locking hook in the direction vertical to the axial lead of the foot tube seat, the locking button is pressed, the locking hook is extruded by the locking button to compress the elastic component in the direction away from the non-return tooth, and the locking hook is separated from the non-return tooth to release the locking between the rotating shaft fork and the foot tube seat. The utility model discloses the foot pipe that can simplify tripod class instrument is opening and is packing up the unblock operation of in-process.

Description

Connecting structure and tripod adopting same

Technical Field

The utility model relates to a connection structure technical field especially relates to a connection structure and adopt this connection structure's tripod.

Background

When daily use tools such as tripod or other support frames of taking pipe or pole, often need fix the foot pipe in different angles in order to adapt to different scene needs, the locking structure that this type of instrument adopted at present all needs the unblock with packing up the in-process at the foot pipe, it is comparatively loaded down with trivial details to operate, and the unblock button design in the outside, it is opposite to open the rotation direction with the foot pipe, be not conform to human-computer interaction's work efficiency demand, need use great strength to press the button unblock during the unblock, it is relatively poor to use the convenience.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a connection structure and a tripod using the same, so as to simplify the unlocking operation of the leg tube of the tripod type tool during the opening and closing process.

A connecting structure comprises a rotating shaft fork and foot pipe seats, wherein the rotating shaft fork is connected with the foot pipe seats through a rotating shaft in a pivoting mode, at least one non-return tooth is arranged on the rotating shaft fork, one side, close to the rotating shaft fork, of each foot pipe seat is provided with a lock button, a lock hook and an elastic assembly, the elastic assemblies are arranged between the lock hooks and the foot pipe seats, the non-return teeth are mutually meshed with the lock hooks to lock the rotating shaft fork and the foot pipe seats, the lock buttons are arranged to be mutually matched with the lock hooks in a vertical mode in the axial lead direction of the foot pipe seats, the lock buttons are pressed, the lock buttons extrude the lock hooks to be far away from the non-return teeth direction to compress the elastic assemblies, and the lock hooks are separated from the non-return teeth to relieve locking between the rotating shaft fork and the foot pipe seats.

Further, the rotating shaft fork comprises two first connecting portions, a groove is formed between the two first connecting portions, and the non-return teeth are arranged on the first connecting portions.

Furthermore, the non-return teeth comprise first locking surfaces, the lock hooks comprise second locking surfaces, and the non-return teeth are mutually meshed with the lock hooks when the first locking surfaces and the second locking surfaces are mutually attached or parallel.

Furthermore, the non-return tooth comprises a locking vertex, and an included angle formed by a connecting line of the locking vertex and the axis of the rotating shaft and the first locking surface in a projection along the axis direction of the rotating shaft is smaller than 45 degrees.

Furthermore, the non-return tooth comprises a first unlocking surface and an unlocking vertex, and an included angle projected between a connecting line of the unlocking vertex and the axis of the rotating shaft and the first unlocking surface along the axis direction of the rotating shaft is greater than 45 degrees.

Furthermore, the non-return tooth comprises a first unlocking surface, the lock hook comprises a second unlocking surface and a lock hook rear vertex angle, and when the non-return tooth and the lock hook are mutually meshed, the second unlocking surface is parallel to the first unlocking surface or the lock hook rear vertex angle is tangent to the first unlocking surface.

Furthermore, a locking hook groove is formed in the foot tube seat, the elastic assembly and the locking hook are arranged in the locking hook groove, one end of the elastic assembly is connected with the bottom of the locking hook groove, and the other end of the elastic assembly is connected with the locking hook.

Further, the elastic component is a spring or a spring sheet.

Further, the lock button includes the extrusion face of slope, the latch hook includes the pressure face the same with extrusion face inclination, the extrusion face with the laminating each other of pressure face.

The utility model also provides a tripod, including the triangular seat, the triangular seat center is provided with the axis installation department, installs the axis in the axis installation department, the first contained angle of waiting of triangular seat is provided with three aforementioned connection structure, install the foot pipe on the foot tube seat.

The utility model discloses beneficial effect:

(1) the pressing direction of the lock button arranged on the back of the foot tube seat is consistent with the opening direction of the foot tube, so that the man-machine working efficiency is met, and the unlocking action is more labor-saving;

(2) the unlocking structure design of the lock hook and the non-return teeth can make the unlocking process of folding and unfolding the foot tube group more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a tripod according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a connection structure provided in an embodiment of the present invention;

fig. 3 is an exploded schematic view of a connection structure provided in an embodiment of the present invention;

fig. 4A is a schematic structural view of the connection structure provided by the embodiment of the present invention, in which the non-return teeth are engaged with the latch hook;

fig. 4B is a schematic diagram illustrating the stable locking of the non-return teeth and the locking hooks in the connection structure according to the embodiment of the present invention;

fig. 5A is a schematic structural view illustrating a first unlocking surface and a second unlocking surface that are matched with each other when the non-return tooth and the latch hook are locked in the connection structure provided by the embodiment of the present invention;

fig. 5B is an explanatory schematic view of the locking hook and the first unlocking surface being engaged with each other when the non-return tooth and the locking hook are unlocked in the connection structure provided by the embodiment of the present invention;

fig. 5C is an explanatory schematic view of the second unlocking surface and the first unlocking surface being matched with each other when the non-return tooth and the latch hook are unlocked in the connection structure provided by the embodiment of the present invention;

fig. 6 is a schematic structural view illustrating a lock button and a lock hook in a connection structure according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of the connection structure provided by the embodiment of the present invention when locking;

fig. 8 is a schematic structural diagram of the connection structure according to the embodiment of the present invention when unlocking;

fig. 9 is a schematic structural diagram of the connection structure provided by the embodiment of the present invention when locking again after unlocking.

Description of the main elements

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The terms "first" and "second," and the like in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. To the extent that the term "includes" and any variations thereof are used in either the detailed description or the claims, as well as the appended drawings, this is intended to cover non-exclusive inclusions.

Fig. 1 is a schematic structural diagram of a tripod 1 according to the present embodiment. The tripod 1 comprises a triangular seat 10, a middle shaft mounting part 15 is arranged in the center of the triangular seat 10, a middle shaft 80 is mounted on the middle shaft mounting part 15, three rotating shaft forks 11 are circumferentially arranged at equal intervals on the triangular seat 10, each rotating shaft fork 11 is connected with a foot tube seat 20, and foot tubes 90 are mounted on the foot tube seats 20.

Wherein, the triangular seat 10 and the foot tube seat 20 can be made of aluminum alloy or engineering plastics.

As shown in fig. 2, the shaft yoke 11 and the foot tube seat 20 form a connection structure 100, and the connection structure 100 can achieve locking and unlocking between the shaft yoke 11 and the foot tube seat 20. When the shaft yoke 11 and the foot tube seat 20 are locked, the position of the foot tube seat 20 can be fixed, and the position of the foot tube 90 of the tripod 1 can be further fixed; when the shaft fork 11 and the foot tube seat 20 are unlocked, the position of the foot tube seat 20 can be adjusted, and then the position of the foot tube 90 of the tripod 1 can be adjusted.

It should be understood that although the connection structure 100 is illustrated as a tripod as an implementation body in the present embodiment, the connection structure 100 of the present embodiment is not limited to be used in a tripod, and the connection structure 100 of the present embodiment may also be used in other devices that need to lock and unlock the position between the shaft yoke 11 (or the like) and the foot tube seat 20 (or the like).

As shown in fig. 2 and fig. 3, in the present embodiment, the connection structure 100 includes a shaft yoke 11 and a foot socket 20, wherein the shaft yoke 11 and the foot socket 20 are pivotally connected through a shaft 60.

In this embodiment, the shaft yoke 11 may include two first connecting portions 12, a groove is formed between the two first connecting portions 12, the groove may be a U-shaped groove, and the first connecting portion 12 is provided with a stepped hole 13 having a large outer portion and a small inner portion.

It is understood that in other embodiments, the number of the first connecting portions 12 of the shaft fork 11 can be set to other numbers, such as one, according to the actual use requirement.

In this embodiment, the foot socket 20 may include a second connecting portion 21, and the second connecting portion 21 is used for connecting with the first connecting portion 12 through the rotating shaft 60, so as to pivotally connect the shaft yoke 11 with the foot socket 20. If the number of the first connecting portions 12 is two, the second connecting portion 21 is inserted into the groove formed between the two first connecting portions 12, and the rotating shaft 60 sequentially passes through the first connecting portion 12, the second connecting portion 21 and the second first connecting portion 12 to realize the pivotal connection between the shaft yoke 11 and the foot tube base 20.

In this embodiment, the second connecting portion 21 is provided with a shaft hole 22, and the shaft 60 passes through the stepped hole 13 and the shaft hole 22 to realize the pivotal connection between the shaft yoke 11 and the foot tube seat 20.

The rotating shaft 60 may be a combination of a screw and a threaded sleeve, the screw head is disposed in the outer hole 13 of the first connecting portion 12 on one side, the other end of the screw extends into the outer hole 13 of the first connecting portion 12 on the other side, and the threaded sleeve is disposed in the outer hole 13 of the first connecting portion on the other side and is screwed with the screw, so as to fix the rotating shaft 60.

It is understood that in other embodiments, the rotating shaft 60 may also be another cylindrical rigid member, two ends of the rotating shaft 60 respectively extend into the stepped holes 13 of the first connecting portions 12 at two sides, and a bushing may be inserted into an outer hole of the stepped hole 13 to fix the rotating shaft.

As shown in fig. 3 and fig. 4A, in the present embodiment, at least one non-return tooth 14 is disposed on the first connecting portion 12 of the shaft fork 11, wherein the present embodiment uses three non-return teeth 14 to illustrate the implementation of the connecting structure 100 of the present invention.

In this embodiment, the non-return teeth 14 include a first locking surface 141 and a first unlocking surface 142, and a connection surface 143 is disposed between the first locking surface 141 and the first unlocking surface 142. The intersection of the first locking surface 141 and the connecting surface 143 is defined as a locking vertex 144, and the intersection of the first unlocking surface 142 and the connecting surface 143 is defined as an unlocking vertex 145.

In the present embodiment, as shown in fig. 3, the connecting structure 100 further includes a locking button 40, a locking hook 30 and an elastic member 50 disposed on the foot tube base 20. The elastic element 50 is disposed between the latch hook 30 and the foot socket 20, the elastic element 50 can be compressed by the latch hook 30, and the elastic element 50 can be restored after the compression is released.

In this embodiment, the locking hook 30 may be made of aluminum alloy or engineering plastic.

In this embodiment, the elastic element 50 may be a spring or a leaf spring.

In this embodiment, taking the spring shown in fig. 3 as an example, the pin tube seat 20 may be provided with a locking hook groove 23, the locking hook 30 and the spring are both installed in the locking hook groove 23, the bottom of the locking hook groove 23 may be provided with an elastic component hole 24, one end of the spring is fixed in the elastic component hole 24, and the other end of the spring is fixedly connected to the locking hook 30.

In this embodiment, the number of the hook grooves 23 may be two, and the two hook grooves are respectively disposed at both sides of the second connection portion 21.

As shown in fig. 3 and 4A, in the present embodiment, the locking hook 30 and the anti-ratchet tooth 14 may be configured to be engaged with each other and disengaged from each other. If the latch hook 30 and the non-return tooth 14 are in the mutually engaged state, the rotating shaft fork 11 and the foot tube seat 20 are mutually locked, so that the position of the foot tube seat 20 can be fixed; if the latch hook 30 and the ratchet 14 are in the non-engaging state, the shaft yoke 11 and the tube foot base 20 are unlocked, and the relative position of the shaft yoke 11 and the tube foot base 20 can be adjusted.

In this embodiment, the latch hook 30 may include a locking portion 32, wherein the locking portion 32 is provided with a second locking surface 321 and a second unlocking surface 322. When the second locking surface 321 and the first locking surface 141 are parallel to each other, the locking hook 30 and the ratchet 14 are engaged with each other.

As shown in fig. 4A and 4B, in the present embodiment, a line connecting the unlocking vertex 145 and the axis of the rotating shaft 60 is defined as a rotation reference line 70 when viewed in projection along the axial line direction of the rotating shaft 60, if an included angle α between the rotation reference line 70 and the engagement surfaces of the ratchet teeth 14 and the locking hook 30 is smaller than 45 °, it is difficult for the locking hook 30 to bypass the locking vertex 144 of the ratchet teeth 14, and the engagement between the locking hook 30 and the ratchet teeth 14 is stable and reliable.

As shown in fig. 5A, 5B and 5C, in the present embodiment, the latch hook 30 may include a latch hook front vertex 33 and a latch hook rear vertex 34, wherein when the latch hook 30 and the non-return tooth 14 are engaged with each other, the second unlocking surface 322 and the first unlocking surface 142 may be parallel to each other, or the latch hook rear vertex 34 and the first unlocking surface 142 are tangent.

As shown in fig. 5A, 5B and 5C, in the locked state, the unlocking operation of the latch hook 30 and the ratchet 14 can be performed by rotating the foot seat 20 toward the first unlocking surface 142. If the foot tube seat 20 is rotated toward the first unlocking surface 142, the first unlocking surface 142 will press the locking hook 30 toward the foot tube seat 20, and the locking hook 30 will move toward the foot tube seat 20 during the rotation of the foot tube seat 20, and the rear vertex 34 of the locking hook will bypass the first unlocking surface 142 and the unlocking vertex 145 along with the rotation of the foot tube seat 20 to unlock the locking hook 30 and the non-return teeth 14.

When the included angle β between the rotation reference line 70 and the first unlocking surface 142 is greater than 45 °, the rear vertex 34 of the locking hook is more likely to bypass the first unlocking surface 142 and the unlocking vertex 145, which is more beneficial to the unlocking operation of the locking hook 30 and the non-return teeth 14.

As shown in fig. 3 and 4A, in the present embodiment, the locking hook 30 may further include an intermediate portion 31, and the intermediate portion 31 is configured to realize the mutual engagement between the locking hook 30 and the locking knob 40 in the direction perpendicular to the axial line of the foot socket 20. The middle portion 31 may be provided with a pressure receiving surface 311, and the pressure receiving surface 311 may be an inclined surface.

It is understood that in other embodiments, the middle portion 31 and the locking portion 32 of the locking hook 30 may be an integral body, and the second locking surface 321, the second unlocking surface 322 and the pressure receiving surface 311 are all directly disposed on the locking hook 30.

As shown in fig. 3 and 6, in the present embodiment, the lock knob 40 is mounted on the foot seat 20 and is configured to be pushed in the axial direction of the foot seat 20 and move in the direction of the foot seat 20.

In this embodiment, the locking knob 40 is configured to cooperate with the locking hook 30 in a direction perpendicular to the axial line of the foot socket 20. When the locking button 40 is pressed, the locking button 40 presses the locking hook 30 to move away from the anti-reverse teeth 14, so that the locking hook 30 compresses the elastic component 50, the locking hook 30 and the anti-reverse teeth 14 are separated from each other, the locking between the shaft yoke 11 and the foot tube base 20 is released immediately, and at this time, the relative position between the shaft yoke 11 and the foot tube base 20 can be adjusted.

In this embodiment, the lock knob 40 may be provided with a pressing surface 41, and the pressing surface 41 is an inclined surface. The pressing surface 41 has the same inclination angle as the pressure receiving surface 311.

In this embodiment, the pressing surface 41 and the pressure receiving surface 311 are bonded to each other. If the locking button 40 is pressed, the pressing surface 41 will press the pressing surface 311 toward the direction approaching the foot seat 20, so that the locking hook 30 moves away from the anti-ratchet 14 to disengage from the anti-ratchet 14, and the locking hook 30 compresses the elastic member 50; if the lock knob 40 is not pressed, the compressed elastic member 50 pushes back the locking hook 30 in a direction approaching the ratchet 14 under the elastic force, and the pressed surface 311 pushes back the pressed surface 41 in a direction approaching the ratchet 14, so that the lock knob 40 is restored.

Fig. 7, 8 and 9 show the process of locking the shaft yoke 11 and the foot seat 20 to unlock and then locking after adjustment in the connection structure 100 of the present embodiment.

As shown in fig. 7, in the first position locking state, the first locking surface 141 and the second locking surface 321 are parallel or tangent to each other, the ratchet 14 is engaged with the locking hook 30, and the shaft yoke 11 and the foot socket 20 are in the locking state.

As shown in fig. 8, when the locking button 40 is pressed, the locking button 40 presses the locking hook 30 to move away from the anti-reverse tooth 14 and compress the elastic member 50, the anti-reverse tooth 14 is disengaged from the locking hook 30, the locking between the shaft yoke 11 and the foot tube base 20 is released, and at this time, the relative position between the foot tube base 20 and the shaft yoke 11 can be adjusted by rotating in the clockwise or counterclockwise direction.

As shown in fig. 9, when the shaft yoke 11 and the leg socket 20 are in the unlocked state, the leg socket 20 is rotated counterclockwise, so that the lock knob 40 reaches between the first unlocking surface 142 of the previous non-return tooth 14 and the first locking surface 141 of the next non-return tooth 14, and when the lock knob 40 is released, the elastic member 50 is reset, the non-return tooth 14 and the lock hook 30 are engaged with each other again, and the shaft yoke 11 and the leg socket 20 are in the locked state.

As shown in fig. 9, in the locked state of the shaft yoke 11 and the foot seat 20 shown in fig. 9, if the foot seat 20 is rotated clockwise, the locking hook 30 first contacts the first unlocking surface 142 and is pressed by the first unlocking surface 142 to move away from the ratchet 14 and compress the elastic member 50 until the locking hook 30 is separated from the first unlocking surface 142. At this time, the non-return teeth 14 are disengaged from the latch hooks 30, the shaft yoke 11 is unlocked from the leg socket 20, and the leg socket 20 can continue to rotate clockwise.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a connection structure, includes pivot fork and foot tube seat, the pivot fork with the foot tube seat is through pivot pivoted joint, its characterized in that, be provided with at least one contrary tooth on the pivot fork, be close to on the foot tube seat one side of pivot fork is provided with lock button, latch hook and elastic component, elastic component sets up the latch hook with between the foot tube seat, wherein, contrary tooth with latch hook interlock each other and lock pivot fork with the foot tube seat, lock button configuration with the latch hook is in the perpendicular foot tube seat axial lead direction is mutually supported, presses the lock button, the extrusion of lock button the latch hook is to keeping away from contrary tooth direction compression elastic component, just the latch hook breaks away from contrary tooth and removes the pivot fork with locking between the foot tube seat.

2. The coupling structure according to claim 1, wherein the shaft yoke includes two first coupling parts between which the recess is formed, and the non-return tooth is provided on the first coupling parts.

3. The coupling structure as claimed in claim 1, wherein the non-return tooth includes a first locking surface, and the latch hook includes a second locking surface, and the non-return tooth and the latch hook are engaged with each other when the first locking surface and the second locking surface are attached to each other or parallel to each other.

4. The coupling structure according to claim 3, wherein said ratchet includes an unlocking vertex, and an angle projected in a direction along an axis of said rotary shaft between a line connecting said unlocking vertex and an axis of said rotary shaft and said first locking surface is less than 45 °.

5. The coupling structure according to claim 1, wherein the non-return tooth includes a first unlocking surface and an unlocking apex, and an angle projected in a direction along the axis of the rotating shaft between a line connecting the unlocking apex and the axis of the rotating shaft and the first unlocking surface is greater than 45 °.

6. The coupling structure as claimed in claim 1, wherein the non-return tooth includes a first unlocking surface, the latch hook includes a second unlocking surface and a latch hook rear apex angle, and when the non-return tooth and the latch hook are engaged with each other, the second unlocking surface is parallel to the first unlocking surface or the latch hook rear apex angle is tangent to the first unlocking surface.

7. The connecting structure according to claim 1, wherein said foot tube holder is provided with a latch groove, and said elastic member and said latch hook are disposed in said latch groove, wherein one end of said elastic member is connected to a bottom of said latch groove, and the other end of said elastic member is connected to said latch hook.

8. The connecting structure according to claim 1, wherein the elastic member is a spring or a leaf spring.

9. The connecting structure according to any one of claims 1 to 8, wherein the lock knob includes an inclined pressing surface, and the lock hook includes a pressure receiving surface inclined at the same angle as the pressing surface, and the pressing surface and the pressure receiving surface are fitted to each other.

10. A tripod comprising a triangular seat, wherein a middle shaft mounting part is arranged at the center of the triangular seat, and a middle shaft is mounted in the middle shaft mounting part, and is characterized in that three connecting structures as claimed in any one of claims 1 to 9 are arranged at equal included angles on the triangular seat, and foot tubes are mounted on the foot tube seats.