CN213974304U - Steering structure of tricycle ridden backwards - Google Patents
Steering structure of tricycle ridden backwards Download PDFInfo
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- CN213974304U CN213974304U CN202020662615.1U CN202020662615U CN213974304U CN 213974304 U CN213974304 U CN 213974304U CN 202020662615 U CN202020662615 U CN 202020662615U CN 213974304 U CN213974304 U CN 213974304U
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Abstract
The utility model provides a tricycle turns to structure of riding backwards, the girder front end is located frame bottom surface below just adorns with the frame hinge through hinge structure. The utility model discloses in, the girder front end passes through the axis of rotation and articulates with the frame bottom surface, the two pivoted connection structure is simple, the part is few, light in weight and the installation of being convenient for, handle and frame and the integrative setting of railway carriage, certain power is applyed a little to the driver, can manipulate the front end rotation at frame and railway carriage place, the both sides of frame bottom surface rear end set up a gag lever post respectively, the purpose of restriction girder pendulum angle of rotation has been realized, improve holistic security and the comfort level of riding, the axis of rotation is mutually supported with the bearing, compare with current ball and fender bowl, and the automobile seat has the advantages of simple to operate, and is simple to maintain, and is flexible in rotation, durable advantage, above-mentioned each structure is mutually supported, it is convenient to make whole car turn to, connect firm and the installation of being convenient for and maintain.
Description
Technical Field
The utility model belongs to the technical field of the reverse tricycle girder and railway carriage connection structure improve, a connection structure of girder and railway carriage is related to, especially a reverse tricycle turns to structure.
Background
The tricycle of riding backwards is a convenient instrument of riding instead of walk, and it can be used to carry people, also can be used to carry the thing, and different with traditional tricycle, its structure is: the rear fork type bicycle comprises a carriage 14, a frame 24, front wheels 16, rear wheels 1 and a saddle sleeve 5, wherein a main beam is installed on the front end face of the lower end of the saddle sleeve, a rear bottom fork 4 is arranged on the rear end face of the lower end of the saddle sleeve and forms a structure similar to a triangle with an installation plate 2 through an inclined beam 3, the rear wheels are arranged between the installation plates on two sides, the front wheels are arranged on two sides of the frame, and the front end of the main beam is hinged with the rear end of the frame through a hinge device structure. When riding, people realize turning to through the handle on railway carriage or the frame, but such a mode of turning to has following problem: 1. without a steering limiting device, the possibility that immovable parts and moving parts collide with each other or the situation that the tricycle is suddenly stopped or topples over due to an overlarge steering angle can occur when a handle is rotated, so that the tricycle is very dangerous to a rider; 2. the existing steering core component is realized by a ball and a baffle bowl, so that the flexibility is insufficient, and the wear resistance is poor; 3. the main beam is hinged with the carriage or the rear end of the frame, the main stress part between the carriage or the frame and the main beam is the hinged part, the hinged part receives the downward acting force of the front end and the rear end together, thus the connecting structure at the position is required to be made as thick as possible to ensure the connection safety, but the thick connecting structure can cause the inconvenience of steering.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide the axis of rotation that uses the slope and frame bottom surface are articulated, effort acts on alone in frame bottom surface and girder front end department and have a tricycle of riding backwards of both sides gag lever post and turn to the structure.
The utility model adopts the technical proposal that:
the utility model provides a tricycle that rides backward turns to structure, includes girder, frame and railway carriage, and the railway carriage setting sets up a front wheel, its characterized in that respectively in frame both sides in frame up end department: the front end of the main beam is positioned below the bottom surface of the frame and is hinged with the frame through a hinge structure.
Furthermore, the hinge structure comprises a rotating shaft, the lower end of the rotating shaft is connected with the front end of the main beam, and the upper end of the rotating shaft is rotatably arranged on the bottom surface of the frame.
Furthermore, a sleeve is arranged on the bottom surface of the frame, a bearing is arranged in the sleeve, and the upper end of the rotating shaft is embedded in the bearing.
Furthermore, the sleeve is arranged in a forward tilting mode, the rotating shaft is arranged in a forward tilting mode, and a bearing is arranged between the outer edge of the inner portion of the sleeve and the inner edge of the sleeve.
Furthermore, the sleeve is embedded in an installation beam arranged on the bottom surface of the frame.
And two limiting rods are arranged on two sides of the rear end of the bottom surface of the frame respectively and are used for limiting the swinging angle of the main beam to two sides.
Furthermore, the frame includes frame and spacer beam, sets up a plurality of spaced spacer beams by front end to rear end in the frame, and the bottom surface installation of a plurality of spacer beams that are close to the front end is by the installation roof beam of frame front end extension rear end, and the mounting beam up end between two spacer beams that are close to the frame rear end sets up a bottom plate, the sleeve pipe inlays the dress in bottom plate and installation roof beam, and the sleeve pipe upper end stretches out to between two spacer beams, and the sleeve pipe lower extreme stretches out to mounting beam bottom surface below.
Furthermore, the outer edge of the end part of the rotating shaft extending out of the upper end of the sleeve is engaged and sleeved with a locking nut which is used for pressing a bearing positioned at the upper end of the sleeve.
And moreover, four corners of the upper end face of the frame are respectively provided with a vertical plate, the carriage is arranged between the four vertical plates and the frame, the front ends and the rear ends of two sides of the carriage are respectively provided with a supporting frame, the two vertical plates at the rear ends are respectively embedded into the lower end parts of two sides of the handle, the front end of the frame is provided with a front gear rod, and two sides of the frame are respectively provided with a front wheel gear rod.
And front wheel axle mounting plates are arranged on two sides of the outer frame, and front wheel axles mounted on the bottom surfaces of the front wheel axle mounting plates are positioned in a gap between the bottom surface of the mounting beam and the upper end surface of the front end of the main beam.
The utility model has the advantages that:
in the utility model, the front end of the main beam is hinged with the bottom surface of the frame through the forward tilting rotating shaft, the rotating connection structure of the main beam and the frame is simple, the parts are few, the weight is light, the installation is convenient, in addition, the rotating shaft is tilted forwards, the downward acting force generated by the main beam is dispersed on the whole frame, compared with the hinged part under the action of the existing front end and rear end, the acting force is dispersed more evenly, the connection is more stable, in addition, the handle, the frame and the carriage are arranged integrally, the driver can control the front end of the frame and the carriage to rotate by applying a certain force slightly, furthermore, two sides of the rear end of the bottom surface of the frame are respectively provided with a limiting rod, the two limiting rods touch the side surface of the main beam when the frame and the carriage rotate to a certain angle, thereby the purpose of limiting the swinging angle of the main beam is realized, in order to avoid direct touch, the cushion can be installed on the limiting rods, improve holistic security and comfort level of riding, at last, the axis of rotation is mutually supported with the bearing, compares with current ball and fender bowl, has simple to operate, maintains simply, and rotatory nimble, durable advantage, above-mentioned each structure is mutually supported, makes whole car turn to convenient, connect firm and be convenient for the installation maintenance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an enlarged cross-sectional view of the connection of the frame of FIG. 1 to the front end of the main rail.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
The utility model provides a tricycle that rides backward turns to structure, as shown in fig. 1 ~ 3, including girder 8, frame 24 and railway carriage 14, the railway carriage setting sets up a front wheel 16 respectively in frame up end department in the frame both sides, the utility model discloses an innovation lies in: the front end 25 of the main beam is positioned below the bottom surface of the frame and is hinged with the frame through a hinge structure.
In the embodiment, an auxiliary beam 6 is arranged between the saddle sleeve and the main beam, and a middle shaft sleeve 7 is arranged at the joint of the saddle sleeve and the main beam below the auxiliary beam. The rotating structure comprises a rotating shaft 23 and a sleeve 35, the lower end of the rotating shaft is connected with the front end of the main beam, and the upper end 34 of the rotating shaft is rotatably arranged in the sleeve embedded at the bottom surface of the frame. The further scheme is as follows: a bearing 36 is provided in the sleeve, and the upper end of the rotating shaft is fitted in the bearing. The most preferred way is: the sleeve pipe is arranged towards the front end of the frame in an inclined mode, namely the upper end of the sleeve pipe is advanced, the rear end of the sleeve pipe faces backwards, the rotating shaft is also arranged towards the front end of the frame in an inclined mode, and bearings are embedded between the outer edge of the rotating shaft located in the sleeve pipe and the inner edge of the upper end and the inner edge of the lower end of the sleeve pipe.
In order to prevent the main beam from swinging too much, two sides of the rear end of the bottom surface of the frame are respectively provided with a limiting rod 26, and the two limiting rods are used for limiting the swinging angle of the main beam to two sides.
The frame comprises an outer frame 29 and partition beams 28, wherein three partition beams are arranged in the outer frame from the front end to the rear end, the middle parts of the bottom surfaces of the three partition beams are provided with mounting beams 19 extending from the front end to the rear end of the frame, the upper end surface of the mounting beam between two partition beams close to the rear end of the frame is provided with a bottom plate 30, a sleeve is embedded in the bottom plate and the mounting beams, the upper end 31 of the sleeve extends to the position between the two partition beams, and the lower end of the sleeve extends to the position below the bottom surface of the mounting beam. A rear reinforcing beam 37 is arranged between the rearmost partition beam and the middle part of the outer frame, and the upper end surfaces of the rear reinforcing beam and the partition beam are connected with the bottom plate 27 of the carriage.
The end 32 of the rotating shaft extending beyond the upper end of the sleeve is fitted with a locking nut 33 in engagement therewith, which nut serves to press the upper end face of the bearing moving coil located at the upper end of the sleeve. Because sleeve pipe and axis of rotation are the slope setting, even if do not install lock nut, the effort of frame and axis of rotation department is decurrent power, and this power can be with the axis of rotation card in sleeve pipe and bearing department, makes the axis of rotation can't deviate from in the cover pipe, behind the installation lock nut, makes sleeve pipe and rotation axis connection's more firm.
The four corners of the upper end face of the frame are respectively provided with a vertical plate 13, a carriage is arranged between the four vertical plates and the frame, supporting frames 10 are respectively arranged in embedded pipes 11 at the front end and the rear end of two sides of the carriage, lower end parts at two sides of a handle 9 are respectively embedded in installation pipes 12 on the two vertical plates at the rear end, a front gear rod 18 is arranged at the front end of the frame, two front wheel gear rods 17 are respectively arranged at two sides of the frame, and two front wheels are respectively positioned in the front wheel gear rods at the same side and are provided with a mudguard 15 above the upper end face.
Front wheel axle 20 mounting plates are arranged on two sides of the outer frame, and a front wheel axle arranged on the bottom surface of each front wheel axle mounting plate is positioned in a gap between the bottom surface of the mounting beam and the upper end surface of the front end of the main beam. The rotating shaft is a solid shaft, and the material of the rotating shaft is 45# steel subjected to quenching and tempering, so that the bearing capacity of the vehicle body is greatly improved.
In order to further improve the connection stability of the rotating shaft and the front end of the main beam, the lower end of the rotating shaft is fixed at the front end face of the main beam through welding, and a fixing bending piece 22 which is approximately U-shaped in plan view is welded on the outer edge of the driving shaft and the two side faces 21 of the front end of the main beam.
In the utility model, the front end of the main beam is hinged with the bottom surface of the frame through the forward tilting rotating shaft, the rotating connection structure of the main beam and the frame is simple, the parts are few, the weight is light, the installation is convenient, in addition, the rotating shaft is tilted forwards, the downward acting force generated by the main beam is dispersed on the whole frame, compared with the hinged part under the action of the existing front end and rear end, the acting force is dispersed more evenly, the connection is more stable, in addition, the handle, the frame and the carriage are arranged integrally, the driver can control the front end of the frame and the carriage to rotate by applying a certain force slightly, furthermore, two sides of the rear end of the bottom surface of the frame are respectively provided with a limiting rod, the two limiting rods touch the side surface of the main beam when the frame and the carriage rotate to a certain angle, thereby the purpose of limiting the swinging angle of the main beam is realized, in order to avoid direct touch, the cushion can be installed on the limiting rods, improve holistic security and comfort level of riding, at last, the axis of rotation is mutually supported with the bearing, compares with current ball and fender bowl, has simple to operate, maintains simply, and rotatory nimble, durable advantage, above-mentioned each structure is mutually supported, makes whole car turn to convenient, connect firm and be convenient for the installation maintenance.
Claims (10)
1. The utility model provides a tricycle that rides backward turns to structure, includes girder, frame and railway carriage, and the railway carriage setting sets up a front wheel, its characterized in that respectively in frame both sides in frame up end department: the front end of the main beam is positioned below the bottom surface of the frame and is hinged with the frame through a hinge structure.
2. The steering structure for a tricycle ridden on the back according to claim 1, wherein: the hinge structure comprises a rotating shaft, the lower end of the rotating shaft is connected with the front end of the main beam, and the upper end of the rotating shaft is rotatably arranged on the bottom surface of the frame.
3. The steering structure for a tricycle ridden on the back according to claim 2, wherein: the bottom surface of the frame is provided with a sleeve, a bearing is arranged in the sleeve, and the upper end of the rotating shaft is embedded in the bearing.
4. The steering structure for a tricycle ridden on a reverse side according to claim 3, wherein: the sleeve is arranged in a forward inclining mode, the rotating shaft is arranged in a forward inclining mode, and a bearing is arranged between the outer edge of the inner portion of the sleeve and the inner edge of the sleeve.
5. The steering structure for a tricycle ridden on the reverse side according to claim 3 or 4, wherein: the sleeve is embedded in an installation beam arranged on the bottom surface of the frame.
6. The steering structure for a tricycle ridden on the reverse side according to claim 3 or 4, wherein: and two limiting rods are respectively arranged on two sides of the rear end of the bottom surface of the frame and are used for limiting the swinging angle of the main beam to two sides.
7. The steering structure for a tricycle ridden on the back according to claim 6, wherein: the frame includes the frame and separates the roof beam, sets up a plurality of spaced apart roof beams by front end to rear end in the frame, and the bottom surface installation that is close to a plurality of spaced apart roof beams of front end is by the installation roof beam of frame front end extension rear end, and two mounting beam up end that separate between the roof beam near the frame rear end sets up a bottom plate, the sleeve pipe inlays the dress in bottom plate and mounting beam, and the sleeve pipe upper end stretches out to two and separates between the roof beam, and the sleeve pipe lower extreme stretches out to mounting beam bottom surface below.
8. The steering structure for a tricycle ridden on the back according to claim 2, 3 or 4, wherein: the outer edge of the end part of the rotating shaft extending out of the upper end of the sleeve is engaged and sleeved with a locking nut which is used for pressing a bearing positioned at the upper end of the sleeve.
9. The steering structure for a tricycle ridden on a reverse side according to claim 7, wherein: the four corners of the upper end face of the frame are respectively provided with a vertical plate, the carriage is arranged between the four vertical plates and the frame, the front ends and the rear ends of the two sides of the carriage are respectively provided with a supporting frame, the two vertical plates at the rear ends are respectively embedded into the lower end parts of the two sides of the handle, the front end of the frame is provided with a front gear rod, and the two sides of the frame are respectively provided with a front wheel gear rod.
10. The steering structure for a tricycle ridden on a reverse side according to claim 7, wherein: front wheel axle mounting plates are arranged on two sides of the outer frame, and front wheel axles mounted on the bottom surfaces of the front wheel axle mounting plates are located in gaps between the bottom surfaces of the mounting beams and the upper end surfaces of the front ends of the main beams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020662615.1U CN213974304U (en) | 2020-04-27 | 2020-04-27 | Steering structure of tricycle ridden backwards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020662615.1U CN213974304U (en) | 2020-04-27 | 2020-04-27 | Steering structure of tricycle ridden backwards |
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| Publication Number | Publication Date |
|---|---|
| CN213974304U true CN213974304U (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020662615.1U Active CN213974304U (en) | 2020-04-27 | 2020-04-27 | Steering structure of tricycle ridden backwards |
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| Country | Link |
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| CN (1) | CN213974304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042903A (en) * | 2021-12-06 | 2022-09-13 | 宁波维伦智能科技有限公司 | Chassis and inverted tricycle |
-
2020
- 2020-04-27 CN CN202020662615.1U patent/CN213974304U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042903A (en) * | 2021-12-06 | 2022-09-13 | 宁波维伦智能科技有限公司 | Chassis and inverted tricycle |
| WO2024000935A1 (en) * | 2021-12-06 | 2024-01-04 | 宁波维伦智能科技有限公司 | Chassis and reverse tricycle |
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