CN216034884U

CN216034884U - Standpipe auto-lock scray

Info

Publication number: CN216034884U
Application number: CN202121497092.0U
Authority: CN
Inventors: 欧玉田
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-03-15
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a standpipe self-locking folder which comprises an upper joint and a lower joint, wherein one end of the upper joint and one end of the lower joint are hinged, and the free end of the lower joint is hinged with the lower part of a handle. The free end of the upper joint is provided with a clamped mechanism, and a vertical pipe extending from the free end of the upper joint is provided with a hook groove; the handle is provided with a clamping piece connected with the clamped mechanism in a sliding clamping way, and the handle is also provided with a safety mechanism which is in sliding hooking or disengaging with the hooking groove. The clamping piece on the driving handle is clamped and connected with the clamped mechanism of the upper joint, so that preliminary self-locking is realized. The safety mechanism on the handle is hooked and connected with the hooking groove, secondary self-locking is realized, and reliable locking of the folder is guaranteed. When unlocking, the safety mechanism is firstly pressed, so that the safety mechanism is separated from the hook groove, secondary locking is released, and the folder can be opened by rotating the handle. The utility model has simple structure, convenient assembly and low production cost; the use and the operation are convenient and smooth, and the self-locking is stable and reliable. And is convenient for packaging and transportation.

Description

Standpipe auto-lock scray

Technical Field

The utility model relates to a connecting mechanism, in particular to a vertical tube self-locking folding mechanism which can be used for connecting a front fork vertical handle of a folding bicycle.

Background

Bicycles have been popular as an important vehicle since all the time. The folding bicycle has the advantages of reduced volume after being folded, convenient storage and transportation and superiority, so the folding bicycle gradually becomes one of favorite tools for people to ride instead of walk and build body. The folding device is also called as a hinge connection locking device and basically comprises a first connecting component and a second connecting component, wherein one side of the two connecting components is hinged, the other side of the two connecting components can rotate around a hinged shaft to be opened and closed, and the connecting components can be fixedly locked by a locking mechanism after being closed so as to realize connection. A rod piece is respectively connected to the first connecting member and the second connecting member of the folder, two rod piece members can be butted and locked into one rod piece through the folder, and the two rod piece members can be separated into two parts by rotating around a hinge shaft of the folder after unlocking, so that the occupied space is reduced. With the continuous development of the technology of folding bicycles, most of the existing folders adopt a device similar to a four-bar linkage mechanism to realize buckling self-locking. The existing folder has complex mechanism, high manufacturing requirement precision and high cost; the folding device is easy to slide unsmoothly when in use, is not easy to unfold after being folded, is easy to loose the moving part after being used for a long time, and is not easy to unfold in the whole folding device, thereby influencing the normal use.

Therefore, how to overcome the defects of the existing folder that the processing difficulty is large, the use is inconvenient and unsmooth is an urgent problem to be solved in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vertical pipe self-locking folder which is simple to process and convenient and smooth to use, and aims to solve the technical problems that an existing folder is high in processing difficulty and inconvenient and unsmooth to use.

The utility model provides a standpipe self-locking folder which comprises an upper joint and a lower joint, wherein one end of the upper joint and one end of the lower joint are hinged, and the free end of the lower joint is hinged with the lower part of a handle. The free end of the upper joint is provided with a clamped mechanism, and a vertical pipe extending from the free end of the upper joint is provided with a hook groove; the handle is provided with a clamping piece connected with the clamped mechanism in a sliding clamping way, and the handle is also provided with a safety mechanism which is in sliding hooking or disengaging with the hooking groove.

Preferably, the clamped mechanism comprises a boss extending from the free end of the upper joint and a ball screw arranged in the boss.

Preferably, the boss is further provided with a set screw for preventing the ball head screw from loosening.

Preferably, the clamping piece is a cross shaft arranged on the handle, when the handle is locked, the handle rotates towards the upper joint, and the outer circle of the cross shaft slides over the ball head of the ball head screw to realize self-locking.

Preferably, the transverse shaft comprises a transverse ejector rod and an ejector rod screw.

Preferably, the safety mechanism comprises a sliding safety hook, the sliding safety hook is composed of a sliding shaft and a safety hook, one end of the sliding shaft extends out of one side edge of the handle, the safety hook can be inserted into the hook hanging groove, and the other end of the sliding shaft is connected with the other side edge of the handle through a spring mechanism.

Preferably, the spring mechanism is a pin shaft with one end connected to the sliding shaft and the other end penetrating out of the other side edge of the handle, the extending end of the pin shaft is connected with a limit screw, and a spring is sleeved on the pin shaft between the sliding shaft and the side edge of the handle.

Preferably, the sliding shaft is a flat square shaft and is in sliding fit with the flat hole on the side edge of the handle.

The folder provided by the utility model cancels a common four-bar self-locking mechanism, and adopts the pressing interference fit of a transverse ejector rod fixed on a handle and the head of a ball screw fixed on an upper joint to form the primary self-locking of the folder. The handle is rotated reversely, so that the transverse mandril can slide out of the ball head screw to remove the preliminary self-locking. In order to prevent the failure caused by the primary self-locking, when the primary locking is formed, the handle rotates towards the upper joint, the safety hook on the handle slides and is inserted into the hook groove of the vertical pipe of the upper joint and is hooked with the hook groove under the action of the spring force to form secondary self-locking, so that the folder is locked reliably. And pressing one end of the sliding shaft, which is exposed out of the side wall of the handle, to drive the sliding safety hook to move together with the pin shaft, so that the safety hook is separated from the hook hanging groove, and secondary locking is released. The folder can be opened by rotating the handle. The utility model has simple structure, convenient assembly and low production cost; the use and the operation are convenient and smooth, and the self-locking is stable and reliable. And is convenient for packaging and transportation.

Drawings

FIG. 1 is a schematic view of an embodiment of the present invention applied to a bicycle;

FIG. 2 is a perspective view of an open position according to an embodiment of the present invention;

FIG. 3 is a cross-sectional structural view of the self-locking state of the embodiment of the present invention;

FIG. 4 is a block diagram of a handle assembly of an embodiment of the present invention;

FIG. 5 is a view of the structure of the handle according to the embodiment of the present invention;

fig. 6 is a structural view of a sliding safety hook according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1, the standpipe self-locking folder provided in the embodiment of the present invention includes an upper connector 1, a lower connector 2, and a handle 3. The upper joint 1 and the vertical pipe 4 are arranged integrally, can be manufactured in a split mode according to needs and then are connected into a whole. A bicycle handlebar 5 is arranged above the vertical tube 4, and the lower joint 2 is connected with a frame head 6.

As shown in fig. 2, the upper joint 1 has a connection end and a free end, the lower joint 2 has a connection end and a free end, the connection end of the upper joint 1 is hinged with the connection end of the lower joint 2 through a hinge shaft 7, and the free end of the lower joint 2 is hinged with the lower portion of the handle 3 through a handle shaft 12. The free end of the upper joint 1 is provided with a clamped mechanism, and a vertical pipe 4 extending from the free end of the upper joint 1 is provided with a hooking groove 8. The handle 3 is provided with a clamping piece which is connected with the clamped mechanism in a sliding clamping way, and the handle 3 is also provided with a safety mechanism which is in sliding hooking or separation with the hooking groove 8 on the vertical pipe 4. In this embodiment, the clamped mechanism includes a boss 9 extending from the free end of the upper joint 1, and a ball head screw 10 disposed in the boss 9, the ball head screw can be adjusted and moved along the axial direction of the ball head screw, and the boss 9 is further provided with a set screw 11 for fixing the ball head screw 10 after being adjusted in place. Referring to fig. 3 and 4, the engaging member is a horizontal shaft disposed on the handle 3. When the handle is locked, the handle 3 rotates towards the upper joint 1, and the excircle of the transverse shaft slides over the ball head of the ball head screw 10 to realize self-locking. The transverse shaft comprises a transverse ejector rod 13 and an ejector rod screw 14 used for fixing the transverse ejector rod, and the excircle of the transverse ejector rod 13 is tightly matched with the smooth ball head sliding top of the ball head screw 10.

As shown in fig. 2 to 6, the safety mechanism includes a sliding safety hook, which is composed of a sliding shaft 15 having one end extending out of one side of the handle 3 and a safety hook 16 capable of being inserted into the hooking groove 8 of the vertical tube 4, and the other end of the sliding shaft 15 is connected to the other side of the handle 3 through a spring mechanism. The spring mechanism is a pin shaft with one end connected to the sliding shaft 15 and the other end penetrating out of the other side edge of the upper handle 3, the extending end of the pin shaft is connected with a limit screw 17, and a spring 18 is sleeved on the pin shaft between the sliding shaft 15 and the side edge of the handle 3. Preferably, the sliding shaft 15 is a flat square shaft, and is slidably fitted into a flat hole 19 (as shown in fig. 5) formed in the side of the handle 3, so as to prevent the sliding shaft 15 from rotating and only reciprocating in the axial direction thereof.

When the standpipe folder is locked, the upper joint and the lower joint are closed firstly, and then the handle 3 is rotated towards the upper joint 1, so that the excircle of the transverse ejector rod 13 fixed on the handle 3 slides through the smooth bulb of the bulb screw 10 fixed on the upper joint 1, and the top pressure interference fit is formed. The up-and-down position of the ball screw 10 can be adjusted according to the requirement to ensure interference fit, and after the adjustment is in place, the set screw 11 is screwed to prevent the ball screw 10 from loosening, so as to realize the initial self-locking of the folder. If unlocking is needed, the handle 3 can be rotated reversely, and the transverse ejector rod can slide out of the ball head screw to remove the initial self-locking. In order to prevent the failure caused by the release of the primary self-locking, when the primary locking is formed, the handle 3 is close to the upper joint 1, the inclined side surface of the safety hook 16 on the handle slides relative to the side edge of the hook groove 8 of the vertical pipe, so that the safety hook 16 is inserted into the hook groove 8 in a sliding way, and under the action of the spring force, the safety hook 16 and the inner wall hook of the hook groove 8 form secondary self-locking so as to ensure the reliable locking of the folder. When the unlocking is needed, one end of the sliding shaft 15, which is exposed out of the side wall of the handle, is firstly pressed to drive the sliding safety hook to move together with the pin shaft, so that the safety hook 16 is separated from the hook of the hook groove 8, and the secondary locking is released. At the same time, the folder can be opened by turning the handle 3. The utility model has simple structure, convenient assembly and low production cost; the use and the operation are convenient and smooth, and the self-locking is stable and reliable. And is convenient for packaging and transportation.

The above specific embodiments are only intended to illustrate the inventive concept and many modifications and variations may be made by those skilled in the art within the spirit of the utility model, which are included within the scope of the utility model.

Claims

1. A standpipe self-locking folder comprises an upper joint and a lower joint, wherein one end of the upper joint is hinged with the lower part of a handle; the handle is provided with a clamping piece connected with the clamped mechanism in a sliding clamping way, and the handle is also provided with a safety mechanism which is in sliding hooking or disengaging with the hooking groove.

2. The standpipe self-locking folder of claim 1, wherein the snap-on mechanism comprises a boss extending from the free end of the upper adapter, and a ball screw disposed in the boss.

3. The standpipe self-locking folder of claim 2, wherein the boss is further provided with a set screw for preventing the ball screw from loosening.

4. The standpipe self-locking folder of claim 2, wherein the catch is a cross shaft disposed on the handle, and when locked, the handle rotates toward the top sub, and an outer circle of the cross shaft slides over a ball of the ball screw to self-lock.

5. The standpipe self-locking folder of claim 4, wherein the transverse shaft comprises a transverse push rod and a push rod screw.

6. The standpipe self-locking folder of claim 1, wherein the safety mechanism comprises a sliding safety hook, the sliding safety hook comprises a sliding shaft with one end extending out of one side of the handle and a safety hook capable of being inserted into the hook slot, and the other end of the sliding shaft is connected with the other side of the handle through a spring mechanism.

7. The standpipe self-locking folder of claim 6, wherein the spring mechanism is a pin having one end connected to the sliding shaft and the other end extending out of the other side of the handle, the extending end of the pin being connected to a limit screw, and a spring is sleeved on the pin between the sliding shaft and the side of the handle.

8. The standpipe self-locking folder of claim 6, wherein the sliding shaft is a flat square shaft and is in sliding engagement with a flat hole in the side of the handle.