CN217835903U

CN217835903U - Folding joint

Info

Publication number: CN217835903U
Application number: CN202221329062.3U
Authority: CN
Inventors: 曹慧
Original assignee: Shenzhen Foho Bicycle Fittings Co ltd
Current assignee: Shenzhen Foho Bicycle Fittings Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-11-18
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a folding joint, including first joint, second joint, connecting rod, sleeve pipe, elastic component and handle, the articulated connection of one side of first joint and second joint, the one end of handle articulates in the opposite side of second joint, the opposite side of first joint is equipped with the boss, be equipped with the joint scale on the boss, the outside of joint scale is the cambered surface, and the inboard is the plane, the connecting rod is located in the handle, the sleeve pipe cover is located on the connecting rod, be equipped with on the sleeve pipe and push away button and auto-lock card, the elastic component makes the sleeve pipe remove to handle and second joint articulated one end on the connecting rod, the joint scale outside of boss is equipped with the joint groove, one side in joint groove is the cambered surface on the joint scale. The utility model provides a folding joint, the security is good.

Description

Folding joint

Technical Field

The utility model relates to a folding bicycle and foldable electric scooter technical field, specifically speaking relates to be used for folding joint.

Background

The folding connecting parts of folding equipment such as folding bicycles, folding electric vehicles and the like all use the folders with quick-release structures, and are used for quickly folding, unfolding and even locking the connecting parts. The existing folder is convenient to fold and unfold, the locking structure is usually too tight which cannot be designed, so that an additional locking mechanism is required to be arranged on the frame to fix the operating handle, and the locking mechanism is easy to collide, damage or lose in the using process, thereby bringing safety risk.

Chinese patent publication CN205113592U discloses a folder, including first connector, second connector, handle and adjusting link, wherein first connector with second connector is articulated each other through first bayonet lock, the handle is articulated through second bayonet lock at the free end of second connector, adjusting link is articulated through third bayonet lock at the free end of first connector, the handle with adjusting link is articulated each other through fourth bayonet lock, first connector, second connector, handle and adjusting link constitute four-bar linkage, form two auto-lock bosss with the mutual buckle of auto-lock card on the first connector, form two auto-lock cards on the sleeve pipe, utilize locking mechanism to realize reliable auto-lock, avoid the unexpected throw-off of folder. Only when the handle rotates to be close to the first connecting joint, at the moment, the self-locking clamping piece on the sleeve crosses the self-locking boss, and self-locking is realized. However, when someone rotates the handle to lock the connection joint, the handle cannot be close to the first connection joint, although the handle is locked to a certain extent, the self-locking lug boss cannot be clamped with the self-locking clamping piece, and the handle is easy to loosen.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a folding joint, it is safer.

The utility model discloses a technical scheme that folding joint adopted is:

the utility model provides a folding joint, includes first joint, second joint, connecting rod, sleeve pipe, elastic component and handle, first joint and the articulated connection of one side that the second connects, the one end of handle articulates in the opposite side that the second connects, the opposite side of first joint is equipped with the boss, be equipped with the joint scale on the boss, the outside of joint scale is the cambered surface, and the inboard is the plane, in the handle was located to the connecting rod, the cover pipe box was located on the connecting rod, be equipped with on the sleeve pipe and push away button and auto-lock card, the elastic component makes the sleeve pipe move to handle and second joint articulated one end on the connecting rod, the joint scale outside of boss is equipped with the joint groove, one side in joint groove is the cambered surface on the joint scale.

Preferably, the outer side of the clamping scale of the boss is provided with a ratchet, and the clamping groove is arranged between the ratchet and the clamping scale.

Preferably, the boss is provided with a through groove, and the through groove separates the ratchet and the clamping scale respectively.

Preferably, the boss is provided with a mandril groove, the mandril groove penetrates through the through groove, a mandril is arranged in the mandril groove, and the connecting rod can be abutted against the mandril.

Preferably, the folding joint further comprises a hinge shaft, one end of the handle is provided with an eccentric hole, and the handle is hinged to the other side of the second joint through the hinge shaft penetrating through the eccentric hole.

Preferably, the handle is provided with a push button groove, and the push button on the sleeve penetrates through the push button groove.

The utility model discloses a folding beneficial effect who connects is: the outer side of the clamping scale of the boss is provided with a clamping groove, after the first joint and the second joint are in butt joint, the handle is rotated, the self-locking clamping piece on the sleeve slides onto the boss, the elasticity of the elastic piece is overcome, the self-locking clamping piece slides into the clamping groove, the self-locking clamping piece cannot rotate in the reverse direction, the rotation is continued, the self-locking clamping piece slides along the cambered surface on the clamping scale, the highest point of the cambered surface of the clamping scale is crossed, and the clamping scale limits the reverse rotation of the self-locking clamping piece. The handle only needs to rotate slightly to the locking direction, and the joint groove can joint the auto-lock card, makes folding joint have certain locking effect, can prevent to lock the potential safety hazard because of carelessness and not in place the handle, improves the security.

Drawings

Fig. 1 is an exploded schematic view of the folding joint of the present invention;

fig. 2 is a schematic structural view of a first joint of the folding joint of the present invention;

fig. 3 is a schematic view of the folding joint of the present invention.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

referring to fig. 1, a folding joint includes a first joint 10, a second joint 20, a link 40, a sleeve 50, and a handle 30.

The first joint 10 is provided with a first hinge lug 11, one side of the first hinge lug 11 is provided with a first hinge hole 111, the other side of the first hinge lug 11 is provided with a boss 12, please refer to fig. 2, the boss 12 is provided with a ejector rod groove 121, a clamping piece abutting surface 122, a through groove 123, a clamping groove 124, a clamping scale 125 and a ratchet 126, the clamping piece abutting surface 122 is a plane, the clamping groove 124 is arranged between the clamping scale 125 and the ratchet 126, the outer side of the clamping scale 125, namely one side located at the clamping groove 124, is an arc surface, the inner side, namely one side far away from the clamping groove 124, is a plane, one side of the ratchet 126 located at the clamping groove 124 is a plane, the other side is an arc surface, the through groove 123 divides the ratchet 126 into two parts and separates the clamping scale 125 to form two parts, the ejector rod groove 121 passes through the through groove 123, and the ejector rod 90 is arranged in the ejector rod groove 121.

The improved structure of the pipe joint is characterized in that a second hinge lug 21 is arranged on one side of the second joint 20, a second hinge hole is formed in the second hinge lug, a third hinge lug 22 is arranged on the other side of the second hinge lug, a third hinge hole is formed in the third hinge lug 22, and the first joint 10 and the second joint 20 are hinged and connected through a hinge shaft 60 penetrating through the first hinge hole 111 and the second hinge hole.

The handle 30 is hinged to the other side of the second joint 20 through a hinge shaft 70 penetrating through a third hinge hole in the second joint 20 and the eccentric hole 31, a push button groove 33 is further arranged on the handle 30, a pin shaft 80 is arranged in the pin hole 32, a threaded hole is formed in the pin shaft 80, the threaded hole is not shown in the figure, and the connecting rod 40 is in threaded connection with the threaded hole of the pin shaft 80.

The sleeve 50 is sleeved on the connecting rod 40, a push button 52 and a self-locking clamping piece 51 are arranged on the sleeve 50, the push button 52 penetrates through a push button groove 33 on the handle 30, the connecting rod 40 is further sleeved with a spring, the spring is not shown in the figure, one end of the spring is abutted against the push button 52, the other end of the spring is abutted against the pin shaft 80, and the spring enables the sleeve 50 to move on the connecting rod 40 to one end, hinged to the handle 30 and the second connector 20, of the connecting rod.

When the folding joint is locked, after the first joint 10 and the second joint 20 are in butt joint, the handle 30 is slightly rotated, the self-locking clamping piece 51 slides through the arc surface on one side of the ratchet 126, the self-locking clamping piece 51 is clamped into the clamping groove 124 under the elastic force action of the spring, because one side of the ratchet 126, which is positioned in the clamping groove 124, is a plane, the handle 30 cannot rotate reversely, the connecting rod 40 abuts against the ejector rod 90, the first joint 10 and the second joint 20 are locked and continue to rotate, the self-locking clamping piece 51 rotates on the arc surface of the clamping scale 125, and passes through the clamping scale 125, because one side, which is far away from the clamping groove 124, of the clamping scale 125 is a plane, the self-locking clamping piece 51 is arranged on the clamping support surface 122, at the moment, the handle 30 is approximately parallel to a connecting pipe fixed on the first joint 10, and the folding joint is reliably locked. When the folding connector is opened, the push button 52 is pushed, the self-locking clamping piece 51 directly passes over the clamping scale 125 and the ratchet 126 against the elastic force of the spring, and the first connector 10 and the second connector 20 can be opened. The utility model discloses increase joint groove 124, handle 30 only needs to rotate slightly to the locking direction, and joint groove 124 can joint auto-lock card 51, the utility model discloses a joint groove 124 carries out the joint restriction to auto-lock card 51, improves the security.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A folding joint comprises a first joint, a second joint, a connecting rod, a sleeve, an elastic piece and a handle, wherein the first joint is hinged to one side of the second joint, one end of the handle is hinged to the other side of the second joint, a boss is arranged on the other side of the first joint, a clamping scale is arranged on the boss, the outer side of the clamping scale is an arc surface, the inner side of the clamping scale is a plane, the connecting rod is arranged in the handle, the sleeve is sleeved on the connecting rod, a push button and a self-locking clamping piece are arranged on the sleeve, the elastic piece enables the sleeve to move towards the end, hinged to the handle and the second joint, of the sleeve on the connecting rod, the folding joint is characterized in that a clamping groove is arranged on the outer side of the clamping scale of the boss, and one side of the clamping groove is an arc surface on the clamping scale.

2. The folding joint of claim 1, wherein ratchets are arranged on the outer sides of the clamping scales of the bosses, and the clamping grooves are formed between the ratchets and the clamping scales.

3. The folding joint of claim 2 wherein said boss defines a channel separating said ratchet and said snap scale, respectively.

4. A folding joint according to claim 3 wherein said boss is provided with a push rod slot, said push rod slot passing through said through slot, said push rod slot being provided with a push rod, said connecting rod being adapted to abut against the push rod.

5. The folding joint of claim 4, further comprising a hinge shaft, wherein one end of the handle is provided with an eccentric hole, and the handle is hinged to the other side of the second joint by the hinge shaft passing through the eccentric hole.

6. A folding joint according to any of claims 1 to 5 wherein said handle is provided with a push button slot and said push button on said sleeve passes through said push button slot.