CN219056495U

CN219056495U - Head pipe rotation limiting device

Info

Publication number: CN219056495U
Application number: CN202222554665.XU
Authority: CN
Inventors: 武彬; 颜兵; 黄启洲; 黄小晖
Original assignee: Dongguan Minko Carbon Fiber Science & Technology Co ltd
Current assignee: Dongguan Minko Carbon Fiber Science & Technology Co ltd
Priority date: 2022-09-24
Filing date: 2022-09-24
Publication date: 2023-05-23
Anticipated expiration: 2032-09-24

Abstract

The application relates to a head pipe rotates stop device, it is including setting up in the head pipe of frame and rotating the front fork of installing in the head pipe, the front fork includes the swiveling tube, the swiveling lever rotate install in the head pipe, swiveling tube fixed mounting has standing, still includes spacing subassembly, spacing subassembly includes spacing ring and stopper, the stopper fixed set up in the head pipe, spacing groove has been seted up to the spacing ring bottom, the stopper is located in the spacing groove. The front fork has the effect that the brake cable is not easy to loosen when the front fork rotates.

Description

Head pipe rotation limiting device

Technical Field

The application relates to the field of bicycles, in particular to a head pipe rotation limiting device.

Background

The bicycle is a common transportation means in people's daily life, and the locomotive of bicycle usually includes handlebar and front fork, and the both ends of handlebar are provided with two braking handles generally, and two braking handles are connected to preceding, back stopper respectively through a plurality of brake cable generally, and the front fork is including rotating the rotation pipe of installing in frame head pipe and being used for installing two installation tubes of wheel, and the handlebar is through standing the rotation pipe of installing in the front fork, and the user can brake the wheel through braking handle area front and back dynamic brake in the in-process of riding, and the front fork can rotate by a wide margin under the drive of handlebar, can rotate even a full circle.

In view of the above, the inventors believe that when the front fork rotates, the handle bar drives the two brake handles to rotate together, and at this time, the brake cable connected to the brake handles and between the front and rear brakes may be involved, which may easily cause the brake cable to become loose.

Disclosure of Invention

In order to prevent the brake cable from loosening when the front fork rotates, the application provides a head pipe rotation limiting device.

The application provides a head pipe rotates stop device adopts following technical scheme:

the utility model provides a head pipe rotates stop device, is including setting up in the head pipe of frame and rotating the front fork of installing in the head pipe, the front fork includes the dwang, the dwang rotate install in the head pipe, dwang fixed mounting has standing, still includes spacing subassembly, spacing subassembly includes spacing ring and stopper, the stopper fixed set up in the head pipe, the spacing groove has been seted up to spacing ring bottom, the stopper is located in the spacing groove.

Through adopting above-mentioned technical scheme, when the user is through standing the dwang, the dwang drives the spacing ring and moves, and the setting that the stopper is located the spacing inslot at this moment plays spacing effect to spacing ring pivoted, when standing the pivoted to two extreme positions, stopper one end is contradicted with the cell wall of spacing groove length direction one end to play the spacing effect to the pivoted of swivelling tube, when the brake cable is installed to the locomotive, in order to be difficult for leading to the brake cable to become lax when making the front fork rotate.

Optionally, the limiting assembly further comprises two stop blocks, the two stop blocks are detachably mounted on the limiting ring, and the two stop blocks are located at two ends of the limiting groove in the length direction.

Through adopting above-mentioned technical scheme, the setting of two dogs plays the guard action to the spacing ring to avoid the spacing ring to rotate the limit block directly collide with the spacing ring, and then be favorable to guaranteeing the life of spacing ring, and when the dog loss to unable normal use, the setting of block detachable is convenient for operating personnel to change two dogs.

Optionally, the two stop blocks are fixedly installed on the limiting ring through countersunk bolts.

Through adopting above-mentioned technical scheme, the setting through countersunk head bolt fastening makes the space that takes up a part of when two dogs are installed reduce to reduce the head pipe and rotate stop device's whole volume, and then be favorable to guaranteeing that the mounting structure of two dogs is light.

Optionally, a plurality of upper fixing parts are arranged between the limiting ring and the handle, and the limiting ring and the handle are fixedly connected through the plurality of upper fixing parts.

Through adopting above-mentioned technical scheme, spacing ring and standing through a plurality of upper fixing piece fixed connection to be favorable to guaranteeing to stand when rotating spacing ring can together rotate, and when spacing groove one end cell wall and stopper conflict, upper fixing piece makes spacing ring be difficult for taking place relative rotation with standing.

Optionally, the head pipe is provided with the bearing, the fixed snap ring that is provided with of rotor tube, snap ring interference fit in the inner ring of bearing.

Through adopting above-mentioned technical scheme, the setting of snap ring and bearing makes the pivoted tube firmly install in the pivoted tube to be favorable to guaranteeing the stability of pivoted tube installation.

Optionally, a plurality of lower fixing parts are arranged between the clamping ring and the limiting ring, and the clamping ring and the limiting ring are fixedly connected through the lower fixing parts.

Through adopting above-mentioned technical scheme, snap ring and spacing ring pass through a plurality of lower mounting fixed connection to be favorable to guaranteeing that snap ring and spacing ring can together rotate, and when spacing groove one end cell wall and stopper conflict, go up the mounting and make the spacing ring be difficult for taking place relative rotation with standing.

Optionally, the fixed orifices has been run through to standing top, the fixed orifices is close to standing length direction one end sets up, standing length direction one end has been seted up along the adjustment tank that runs through the seting up of vertical direction, the adjustment tank communicate in the fixed orifices, the notch of adjustment tank is provided with and is used for a plurality of regulating parts of regulation notch size.

By adopting the technical scheme, an operator enlarges the notch of the adjusting groove through the adjusting piece, so that the vertical through fixing hole is convenient to install on the installation pipe; the operator reduces the notch of the adjusting groove through the adjusting piece, thereby being beneficial to stably and firmly installing the upright on the installation pipe.

Optionally, the handle is provided with two sand grip fixedly, two the sand grip is located the both sides of adjustment groove width direction respectively, the regulating part is selected to be the adjusting bolt, each adjusting bolt's screw thread all cooperates in one of them sand grip, and all support tightly in another sand grip.

By adopting the technical scheme, when each adjusting bolt is screwed down, the notch of the adjusting groove is reduced, and when each adjusting bolt is loosened, the notch of the adjusting groove is enlarged; the setting of locking bolt is convenient for the user to install and dismantle through the instrument to be favorable to guaranteeing to stand the convenience of installation and dismantlement.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the brake cable is installed on the locomotive, the limiting block is arranged in the limiting groove to limit the rotation of the rotating pipe, so that the brake cable is not easy to loosen when the front fork rotates.

2. The upper fixing piece and the lower fixing piece play a role in limiting the handle, the limiting ring and the clamping ring, so that the stability of the handle, the clamping ring and the limiting ring in installation is guaranteed.

Drawings

Fig. 1 is a schematic view of the overall structure of a head pipe rotation limiting device in an embodiment.

FIG. 2 is an exploded view of a head tube rotation limiter according to an embodiment.

Fig. 3 is a schematic structural view of a head pipe rotation limiting device limiting ring.

Reference numerals illustrate: 1. a head pipe; 11. a mounting hole; 12. a clamping groove; 2. a frame; 3. a front fork; 31. a rotary tube; 32. installing a pipe; 4. a limit component; 41. a limiting ring; 411. a limit groove; 42. a limiting block; 421. a plug-in part; 422. a limit part; 5. a bearing; 6. a clasp; 61. a lower fixing member; 7. standing; 71. a fixing hole; 72. an adjustment tank; 73. an adjusting bolt; 74. a convex strip; 75. an upper fixing member; 8. a stop block; 81. countersunk bolts.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses a head pipe rotation limiting device. Referring to fig. 1 and 2, including head pipe 1 and frame 2, front fork 3 and spacing subassembly 4, head pipe 1 fixed connection is in frame 2 one end, and front fork 3 includes rotation pipe 31 and installation pipe 32, and one of them installation pipe 32 one end fixed connection is in another installation pipe 32 one end, and rotation pipe 31 one end fixed mounting is in the junction of two installation pipes 32, and front fork 3 is "Y" font setting, and the inside of head pipe 1 sets up to the rotation hole, and rotation pipe 31 wears to locate the rotation hole and with head pipe 1 normal running fit.

The one end that the pivoted hole is close to head pipe 1 top expands and is equipped with mounting hole 11, and mounting hole 11 holds bearing 5 in, and the outer lane of bearing 5 and the pore wall interference fit of mounting hole 11 to be favorable to guaranteeing that bearing 5 installs firmly and install in mounting hole 11, the outer peripheral face of installation pipe 32 is provided with snap ring 6, the inner wall of snap ring 6 and the outer peripheral face interference fit of installation pipe 32, and the outer peripheral face of snap ring 6 and the inner wall interference fit of bearing 5 inner circle can drive snap ring 6 and rotate when making installation pipe 32 rotate, and the setting of bearing 5 is favorable to guaranteeing the pivoted stability of installation pipe 32.

The limiting component 4 comprises a limiting ring 41 and a limiting block 42, the limiting block 42 comprises a plug-in portion 421 and a limiting portion 422, the limiting portion 422 is integrally arranged at the top of the plug-in portion 421, one side of the width direction of the limiting portion 422 is flush with one side of the width direction of the plug-in portion 421, the limiting block 42 is in an arc-shaped structure, a slot 12 corresponding to the plug-in portion 421 is formed in a slot wall of one side, close to the frame 2, of the mounting hole 11, and the plug-in portion 421 is in plug-in fit with the slot 12.

Referring to fig. 2 and 3, the bottom of the stop collar 41 is provided with a stop slot 411, the stop slot 411 extends around the axial direction of the stop collar 41, that is, the stop slot 411 is arc-shaped, the stop portion 422 of the stop block 42 is located in the stop slot 411, when the stop collar 41 rotates, the stop portion 422 of the stop block 42 plays a role in limiting the rotation angle of the stop collar 41, and when the stop portion 422 of the stop block 42 abuts against one side slot wall of the length direction of the stop slot 411, the stop collar 41 cannot continue to rotate along the same direction.

The side opposite to the limiting ring 41 and the snap ring 6 is provided with a plurality of lower fixing pieces 61, in this embodiment, the lower fixing pieces 61 are pins, the number of the lower fixing pieces is two, and the limiting ring 41 and the snap ring 6 are limited by the pins, so that synchronous rotation of the limiting ring 41 and the snap ring 6 is guaranteed.

The rotary pipe 31 is fixedly provided with a handle 7, the top of the handle 7 is provided with a fixing hole 71 in a penetrating manner, the fixing hole 71 is close to one end of the handle 7 in the length direction, one end of the handle 7 in the length direction is provided with an adjusting groove 72 in a penetrating manner along the vertical direction, the handle 7 is provided with a plurality of adjusting pieces for adjusting the size of the opening of the groove 72, and in the embodiment, the adjusting pieces are selected as adjusting bolts 73.

The standing 7 is fixedly provided with two raised strips 74, the two raised strips 74 are respectively located on two sides of the width direction of the adjusting groove 72, one side of the width direction of the two raised strips 74 is respectively arranged flush with two groove walls of the width direction of the adjusting groove 72, each adjusting bolt 73 is in threaded fit with one raised strip 74, the bolt head of each adjusting bolt 73 is abutted against the other raised strip 74, when each adjusting bolt 73 is screwed down, the notch of the adjusting groove 72 is reduced, so that the standing 7 is conveniently and fixedly installed on the mounting pipe 32, and when each adjusting bolt 73 is loosened, the notch of the adjusting groove 72 is enlarged, so that the standing 7 is conveniently detached.

One side of the limiting ring 41 is fixedly provided with two stop blocks 8 through countersunk head bolts 81, the two stop blocks 8 are positioned in the limiting groove 411 and are respectively close to two end groove walls in the length direction of the limiting groove 411, when the rotating pipe 31 drives the limiting ring 41 to rotate, the limiting part 422 of the limiting block 42 is directly contacted with the stop blocks 8 but not contacted with the limiting ring 41, the countersunk head bolts 81 are arranged so that a user can conveniently detach the two stop blocks 8 when the two stop blocks 8 are damaged, and the space occupied by the countersunk head bolts 81 when the two stop blocks 8 are installed is reduced, so that convenience in the installation structure of the two stop blocks 8 is guaranteed.

One side opposite to the standing 7 and the limiting ring 41 is provided with a plurality of upper fixing pieces 75, in the embodiment, the upper fixing pieces 75 are selected to be pins, and the number of the upper fixing pieces is two, and the standing 7 and the limiting ring 41 are fixedly connected through the pins, so that synchronous rotation of the standing 7 and the limiting ring 41 is guaranteed, and the limiting effect of the limiting block 42 and the limiting groove 411 is stable when a user rotates the standing 7.

The implementation principle of the head pipe rotation limiting device in the embodiment of the application is as follows: when the bicycle is provided with the handlebar stand 7, the handlebar, the brake handle and the brake cable, and a user rotates the handlebar stand 7 through the handlebar, the brake handle pulls the brake cable, the handlebar stand 7 drives the limiting ring 41 to rotate, and when the limiting part 422 of the limiting block 42 is abutted against one of the stop blocks 8, the mounting pipe 32 cannot continue to rotate, so that the brake cable is not easy to loosen due to the rotation of the front fork 3.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a head pipe rotates stop device, is including setting up in head pipe (1) of frame (2) and rotating front fork (3) of installing in head pipe (1), front fork (3) are including rotating pipe (31), rotate the pipe rotate install in head pipe (1), rotate pipe (31) fixed mounting have to stand (7), its characterized in that: still include spacing subassembly (4), spacing subassembly (4) include spacing ring (41) and stopper (42), stopper (42) fixed set up in head pipe (1), spacing groove (411) have been seted up to spacing ring (41) bottom, stopper (42) are located in spacing groove (411).

2. The head pipe rotation limiting device according to claim 1, wherein: the limiting assembly (4) further comprises two stop blocks (8), the two stop blocks (8) are detachably mounted on the limiting ring (41), and the two stop blocks (8) are located at two ends of the limiting groove (411) in the length direction.

3. The head pipe rotation limiting device according to claim 2, wherein: the two stop blocks (8) are fixedly arranged on the limiting ring (41) through countersunk bolts (81).

4. A head pipe rotation limiting apparatus according to claim 3, wherein: a plurality of upper fixing pieces (75) are arranged between the limiting ring (41) and the handle (7), and the limiting ring (41) and the handle (7) are fixedly connected through the plurality of upper fixing pieces (75).

5. The head pipe rotation limiting device according to claim 1, wherein: the head pipe (1) is provided with a bearing (5), the rotating pipe (31) is fixedly provided with a clamping ring (6), and the clamping ring (6) is in interference fit with an inner ring of the bearing (5).

6. The head tube rotation limiting device of claim 5, wherein: a plurality of lower fixing pieces (61) are arranged between the clamping ring (6) and the limiting ring (41), and the clamping ring (6) and the limiting ring (41) are fixedly connected through the lower fixing pieces (61).

7. The head pipe rotation limiting device according to claim 1, wherein: the utility model discloses a handle stand (7) top runs through and has seted up fixed orifices (71), fixed orifices (71) are close to handle stand (7) length direction one end sets up, handle stand (7) length direction one end has been seted up along vertical direction regulation groove (72) of running through and seting up, regulation groove (72) communicate in fixed orifices (71), the notch of regulation groove (72) is provided with and is used for a plurality of regulating parts of regulation groove (72) mouth size.

8. The head tube rotation limiting device of claim 7, wherein: two raised strips (74) are fixedly arranged on the handle (7), the two raised strips (74) are respectively located at two sides of the width direction of the adjusting groove (72), the adjusting piece is an adjusting bolt (73), and threads of each adjusting bolt (73) are matched with one raised strip (74) and are abutted against the other raised strip (74).