CN216546518U

CN216546518U - Automatic connect scray

Info

Publication number: CN216546518U
Application number: CN202122934346.7U
Authority: CN
Inventors: 曹慧
Original assignee: Shenzhen Foho Bicycle Fittings Co ltd
Current assignee: Shenzhen Foho Bicycle Fittings Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-17
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses an automatic connection folder, which comprises an upper joint, a lower joint and a self-locking handle, wherein the upper joint, the lower joint and the self-locking handle are hinged to one side of the folder; the locking releasing mechanism rotates along with the self-locking handle. A clamping connection mechanism is arranged in the folder, so that the upper joint and the lower joint are clamped and connected, and the wedge-shaped bolt is tightly propped through an elastic locking mechanism to keep effective connection. The elastic locking mechanism can ensure that the folder is clamped and connected reliably, lightly and smoothly without noise. The folder can be conveniently opened by releasing the locking mechanism. The self-locking handle is provided with the locking mechanism, and after the self-locking handle is locked, extra safety can be added to prevent misoperation from causing the self-locking handle to rotate to unlock. The utility model has simple operation and convenient assembly and adjustment.

Description

Automatic connect scray

Technical Field

The utility model relates to the technical field of mechanical connecting devices, in particular to an automatic connecting and folding device which can be used for folding or unfolding a vertical handle of a folding bicycle, an electric bicycle or a scooter.

Background

The folding device used at present is formed by hinging the same end of two components and freely opening and closing the other end of the two components. Each of the two members may be connected to the other member. When the folding device is not used, the folding device can be unlocked to enable the two components to rotate relatively and be opened. The folding device is widely applied to travel tools, medical products and fitness products, and along with the continuous progress of science and technology, foldable travel tools, such as a foldable bicycle, a foldable electric bicycle, a foldable scooter, a foldable balance car and the like, are also slowly popularized. The folding device is convenient to use, store and store. When the current folding travel tool is used, the structure of the connecting mechanism which enables the two components to be closed in the common folding device is not exquisite, and the connection is not flexible and smooth; in particular, when it is desired to open both members, it is inconvenient to release the locking operation.

Therefore, how to overcome the defects of the prior folding device that the connection of the closing connection mechanism is not flexible and smooth, and the locking operation is not convenient to release is a problem to be solved in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic connection folder which is convenient and smooth in connection, good in stability and convenient in unlocking operation, and aims to solve the problems that a closing connection mechanism of an existing folding device is not convenient and smooth in connection and inconvenient in unlocking operation.

The utility model provides an automatic connection folder, which comprises an upper joint, a lower joint and a self-locking handle, wherein one side of the upper joint is hinged with the lower joint; a clamping connection mechanism capable of sliding transversely is arranged in the upper joint, a groove in clamping fit with one end of the clamping connection mechanism is arranged on the inner wall of the lower joint, and an elastic locking mechanism is arranged at the other end of the clamping connection mechanism; and the locking releasing mechanism rotates along with the self-locking handle.

Preferably, one end of the clamping connection mechanism is provided with a wedge-shaped lock tongue clamped in the groove; the wedge-shaped bolt and the entering part of the lower joint which is relatively clamped are both cambered surfaces.

Preferably, the elastic locking mechanism comprises a threaded connection mechanism, the threaded connection mechanism penetrates through the limiting convex edge arranged at the lower end of the upper joint and is respectively arranged on the two sides of the limiting convex edge, the pressing block is connected with the wedge-shaped spring bolt, a reset mechanism is arranged between the limiting convex edge and the wedge-shaped spring bolt, and the outer side surface of the pressing block is abutted to the eccentric wheel of the self-locking handle.

Preferably, the threaded connection mechanism comprises a screw rod movably penetrating through the limiting convex edge, one end of the screw rod is in threaded connection with the wedge-shaped lock tongue, the other end of the screw rod is provided with internal threads, and the pulling and pressing block is fixedly connected with the screw rod through a first screw.

Preferably, the wedge-shaped lock tongue is provided with a set screw for preventing the screw rod from rotating.

Preferably, the reset mechanism comprises guide screws arranged on two sides of the screw, one end of each guide screw is in threaded connection with the wedge-shaped lock tongue, the other end of each guide screw is movably inserted into the body of the limiting convex edge, and the guide screws are sleeved with reset springs, so that the wedge-shaped lock tongue can move in a reciprocating manner relative to the limiting convex edge.

Preferably, the middle part of the wedge-shaped bolt is provided with a through hole which can be communicated with the lower joint and the upper joint.

Preferably, the locking releasing mechanism comprises a shifting fork, the lower part of the shifting fork is provided with a pressure rod, and two sides of the shifting fork are also transversely provided with rotating shafts; this pivot install in on the spacing flange of top connection, the shift fork hook in draw the medial surface of briquetting, work as the auto-lock handle is removed the locking and is rotated and be close to when the lower clutch, this auto-lock handle eccentric wheel profile supports and presses the lower part depression bar of shift fork for the shift fork winds the pivot rotate, stimulate simultaneously draw the briquetting and drive the wedge spring bolt and to keeping away from the direction of lower clutch recess removes.

Preferably, the self-locking handle is provided with a locking mechanism, and the locking mechanism comprises a pressing screw transversely arranged on the self-locking handle, a hook connected with the front end of the pressing screw, and a pressing spring arranged on a screw rod between the hook and the head of the pressing screw; when the pressing screw head is pressed, the hook is pushed out and can be hooked and connected with a boss arranged on the upper joint, and the pressing screw is pressed again, so that the hook is withdrawn from the hooking and connecting.

The utility model sets a clamping connection mechanism in the joint of one of the folders, the wedge-shaped bolt is clamped and connected with the other joint through the wedge-shaped bolt, and the wedge-shaped bolt is tightly propped through the elastic locking mechanism to keep effective connection. The distance between the wedge-shaped lock tongue and the limiting convex edge can be adjusted by rotating the screw rod arranged on the wedge-shaped lock tongue, so that the pre-pressure of the reset springs on the two sides of the screw rod and the transverse sliding distance of the wedge-shaped lock tongue are adjusted, the lock tongue clamping of the wedge-shaped lock tongue and the matched groove are guaranteed, and the folder is guaranteed to be reliably clamped and connected and high in stability. The screw rod can slide with locating the spacing chimb with the lead screw rod of screw rod both sides homogeneous phase to light smooth and easy, noiselessness when wedge spring bolt transversely slides. More importantly, when the self-locking handle rotates to the lower part, on one hand, the locking of the eccentric wheel can be released, and meanwhile, the contour of the eccentric wheel can be abutted against and released from the locking mechanism, so that the wedge-shaped lock tongue can conveniently and rapidly exit from the groove in the inner wall of the lower joint, and the folder is opened. The self-locking handle is provided with the locking mechanism, and after the self-locking handle is locked, extra safety can be added to prevent misoperation from causing the self-locking handle to rotate to unlock. The utility model has simple operation and convenient assembly and adjustment.

Drawings

FIG. 1 is a schematic view of the locking structure of the upper and lower joints according to the embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the upper and lower connectors of the present invention shown open;

FIG. 4 is an exploded schematic view of an embodiment of the present invention;

FIG. 5 is a schematic view of the self-locking handle connected to the snap-fit connection mechanism and the elastic locking mechanism according to an embodiment of the present invention;

fig. 6 is a perspective view of an upper joint in an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1 and 2, an automatic connection folder provided by an embodiment of the present invention includes an upper joint 1, a lower joint 2, and a self-locking handle 3, wherein an eccentric 4 at a lower portion of the self-locking handle 3 is hinged and connected with a projecting arm at one side of the upper joint 1 and the lower joint 2. Namely, the lower joint 2 and the upper joint 1 can rotate around the hinge shaft 5, can be in butt joint and clamped after being overlapped, and can be rotationally locked through the self-locking handle 3. The upper joint 1 is internally provided with a clamping connection mechanism which can slide transversely, namely a wedge-shaped bolt 6, and the inner wall of the lower joint 1 is provided with a groove 7 which is matched with the bolt of the wedge-shaped bolt 6 in a clamping way. In this embodiment, as shown in fig. 2, the front end of the wedge-shaped bolt 6 is of a double-bolt structure, that is, the bolts can be inserted into the grooves formed in the inner walls of the upper and lower joints, respectively. The rear end of the wedge-shaped bolt 6 is provided with an elastic locking mechanism. Referring to fig. 3 to 5, the wedge-shaped bolt 6 is wedge-shaped, and the groove 7 of the inner wall of the lower joint 2 has an arc surface corresponding to the engaging portion, so that the wedge-shaped bolt 6 can be smoothly inserted into the groove 7. Referring to fig. 3, when the lower joint 2 is rotated to close the upper joint 1, the arc surface of the groove 7 of the lower joint 2 firstly presses the wedge surface of the wedge-shaped bolt 6, so that the wedge-shaped bolt 6 slides towards one end of the elastic locking mechanism to give way, and the return spring 8 is compressed. Along with the lower joint 2 continues to rotate and press the block, the wedge-shaped bolt 6 resets under the effect of reset spring force for the smooth block of wedge-shaped bolt 6 is in recess 7 of lower joint 2.

As shown in fig. 3, 4 and 5, the elastic locking mechanism includes a threaded connection mechanism, the threaded connection mechanism passes through a limiting convex edge 9 (please refer to fig. 6) arranged at the lower end of the upper joint 1 and connects a pulling and pressing block 10 respectively arranged at two sides of the limiting convex edge 9 with the wedge-shaped bolt 6, a reset mechanism is arranged between the limiting convex edge 9 and the wedge-shaped bolt 2, and the outer side surface of the pulling and pressing block abuts against the eccentric wheel of the self-locking handle. In this embodiment, the threaded connection mechanism includes: the screw rod 11 movably penetrates through the limiting convex edge 9, one end of the screw rod 11 is in threaded connection with the wedge-shaped bolt 6, the other end of the screw rod is provided with internal threads, and the pulling and pressing block 10 is fixedly connected with the screw rod 11 through a first screw 12. In order to prevent the screw 11 from rotating, a set screw 13 is arranged on the wedge-shaped bolt 6, and when the screw 11 is adjusted, the set screw is screwed to fix the screw. Wherein reset mechanism includes: and one end of the guide screw 14 is in threaded connection with the wedge-shaped bolt 6, and the other end of the guide screw is movably inserted into the body of the limiting convex edge 9. The guide screw 14 is sleeved with a return spring 8, so that the wedge-shaped bolt 6 can reciprocate relative to the limit convex edge 9.

As shown in fig. 3, 4 and 5, the unlocking mechanism comprises a shifting fork 15, the lower part of the shifting fork is a pressure bar 16, and rotating shafts 17 are transversely arranged on two sides of the shifting fork; the rotating shaft 17 is mounted on the limiting convex edge 9 of the upper joint 1, and the shifting fork 15 is hooked on the inner side surface of the tension and compression block 10 (see fig. 5). Referring to fig. 2, when the self-locking handle 3 is unlocked and rotates to be close to the lower joint 2, the profile of the eccentric wheel 4 of the self-locking handle presses against the pressure lever 16 at the lower part of the shifting fork 15, so that the shifting fork 15 rotates around the rotating shaft 17 thereof, and simultaneously, the pulling block 10 is pulled and drives the wedge-shaped bolt 6 to move away from the groove 7 of the lower joint, namely, the locking is completely released.

As shown in fig. 4, 5 and 6, the self-locking handle 3 of the present invention carries a locking mechanism, and the locking mechanism comprises: a second screw 18 transversely arranged on the self-locking handle 3, a hook 19 connected with the front end of the second screw 18, and a pressing spring 20 arranged on the screw rod between the hook 19 and the head of the second screw. When the self-locking handle 3 is rotated to be close to the upper joint 1 (locking position), the second screw is pressed, the hook 19 at the front end is pushed out, after the second screw 18 is loosened, the sharp block 22 arranged below the hook 19 can be hooked and connected with the boss 21 arranged on the upper joint 1 (as shown in figure 2), so that the self-locking handle 3 is fixedly connected with the upper joint 1, and the self-locking safety of the self-locking handle 3 is realized. Pressing the second screw 18 again and rotating the self-locking handle 3 downwards away from the top sub 1, the hook 19 is released from the hooking connection.

As shown in fig. 2, when the upper and

lower joints

1 and 2 of the folder are rotated and overlapped, the force of the reset spring enables the wedge-shaped bolt 6 to be smoothly clamped in the groove 7 of the lower joint, and a certain jacking force is applied to realize the preliminary automatic clamping connection of the upper and lower joints. When the self-locking handle 3 is rotated to be close to the upper joint 1, the eccentric wheel 4 of the self-locking handle passes through a dead point position, the outline of the maximum diameter of the eccentric wheel 4 is pressed against the outer side surface of the pulling and pressing block 10, and the front end of the wedge-shaped lock tongue 6 is inserted into the groove 7 of the lower joint 2 and cannot be withdrawn, so that the wedge-shaped lock tongue is effectively locked. The hook 19 at the front end of the second screw 18 is pushed out by pressing the second screw 18, and the self-locking handle 3 is connected and fixed with the upper joint 1 after the second screw 18 is loosened, so that the self-locking safety of the self-locking handle 3 is realized. Such a triple locking makes the present invention safe and reliable. When the locking needs to be released, the second screw 18 is pressed first, the self-locking handle 3 is rotated downwards to be far away from the upper joint 1, and the hook 19 is withdrawn from the hook connection. When the locking is released and the locking is reversely rotated to be close to the lower joint 2, the profile of the self-locking handle eccentric wheel 4 is pressed against the pressure rod 16 at the lower part of the shifting fork 15, the shifting fork 15 is driven to enable the wedge-shaped bolt 6 to exit from the groove 7 of the lower joint, so that the locking is completely released, and the upper joint 1 and the lower joint 2 can be relatively rotated and opened.

As shown in fig. 2 and 3, the folding device of the utility model can adjust the distance between the wedge-shaped bolt 6 and the limiting convex edge 9 on the upper joint by rotating the screw rod 11 in threaded connection with the wedge-shaped bolt 6, so as to adjust the pre-pressure of the reset springs 8 at two sides of the screw rod 11 and the transverse sliding distance of the wedge-shaped bolt 6, thereby ensuring that the bolt of the wedge-shaped bolt 6 is tightly clamped with the groove 7 matched with the bolt to prevent falling off, and ensuring that the folding device is reliable in clamping connection and high in stability. After the position of the screw rod 11 is adjusted to the right position, the set screw 13 vertically arranged on the wedge-shaped bolt 6 body is screwed, so that the screw rod 11 is prevented from rotating to change the distance, and the safety and smooth clamping are further ensured. The screw rod 11 and the lead screw 14 of locating the screw rod both sides all can slide by spacing chimb 9 relatively, and this slip has direction limiting displacement to light smooth and easy when wedge spring bolt 6 transversely slides, noiselessness also can restrict wedge spring bolt 6's vertical runout simultaneously, makes block coupling mechanism can light, smooth and reliable slip, connects in order to realize automatic block. During manufacturing, the middle part of the wedge-shaped bolt 6 body is made into a through hole structure for being communicated with the upper connector 1 and the lower connector 2, so that wires such as electric wires, brake cables and the like can conveniently penetrate through the inside of a pipe fitting, and the product is attractive and simple.

The lower joint and the upper joint of the utility model can be connecting members and connected members with other shapes, and the automatic clamping connection or disconnection and opening of the overlapping of the connecting members and the connected members can be realized by arranging the clamping connection mechanism in the two members. This is not to be taken as an example.

The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims.

Claims

1. An automatic connection folder comprises an upper joint, a lower joint and an eccentric wheel self-locking handle, wherein one side of the upper joint is hinged with the eccentric wheel self-locking handle; the locking releasing mechanism rotates along with the self-locking handle; wherein:

one end of the clamping connection mechanism is provided with a wedge-shaped lock tongue clamped in the groove; the opposite clamping entering parts of the wedge-shaped bolt and the lower joint are cambered surfaces;

the elastic locking mechanism comprises a threaded connection mechanism, the threaded connection mechanism penetrates through a limiting convex edge arranged at the lower side end of the upper joint and connects a pulling and pressing block arranged on two sides of the limiting convex edge with the wedge-shaped spring bolt respectively, a reset mechanism is arranged between the limiting convex edge and the wedge-shaped spring bolt, and the outer side surface of the pulling and pressing block abuts against an eccentric wheel of the self-locking handle;

the locking releasing mechanism comprises a shifting fork, the lower part of the shifting fork is a pressure rod, and rotating shafts are transversely arranged on two sides of the shifting fork; the rotating shaft is installed on the limiting convex edge of the upper joint, the shifting fork is hooked on the inner side face of the pull pressing block, when the self-locking handle is unlocked and rotated to be close to the lower joint, the profile of the eccentric wheel of the self-locking handle abuts against and presses the lower pressing rod of the shifting fork, so that the shifting fork winds the rotating shaft to rotate, and meanwhile the pull pressing block is pulled to drive the wedge-shaped spring bolt to move towards the direction far away from the groove of the lower joint.

2. The automatic connection folder as claimed in claim 1, wherein the screw coupling mechanism includes a screw rod movably passing through the limiting flange, one end of the screw rod is threadedly coupled to the wedge bolt, and the other end thereof is internally threaded, and the pulling and pressing block is fixedly coupled to the screw rod by a first screw.

3. The automatic connection folder as claimed in claim 2, wherein the wedge-shaped latch has a set screw for preventing the screw from rotating.

4. The automatic connection folder as claimed in claim 2, wherein the reset mechanism includes a lead screw disposed at both sides of the screw, one end of the lead screw is connected with the wedge-shaped latch bolt in a threaded manner, and the other end thereof is movably inserted into the body of the position-limiting flange, and a reset spring is sleeved on the lead screw, so that the wedge-shaped latch bolt can reciprocate relative to the position-limiting flange.

5. The automatic connection folder as claimed in claim 1, wherein the wedge-shaped latch has a through hole in the middle thereof for communicating with the lower and upper connectors.

6. The automatic connection folder according to claim 1, wherein the self-locking handle carries a locking mechanism, the locking mechanism comprises a pressing screw transversely arranged on the self-locking handle, a hook connected with the front end of the pressing screw, and a pressing spring arranged on a screw rod between the hook and the head of the pressing screw; when the pressing screw head is pressed, the hook is pushed out and can be hooked and connected with a boss arranged on the upper joint, and the pressing screw is pressed again, so that the hook is withdrawn from the hooking and connecting.