WO2018068279A1

WO2018068279A1 - Scooter head telescoping device and scooter

Info

Publication number: WO2018068279A1
Application number: PCT/CN2016/102062
Authority: WO
Inventors: 沈剑; 江旭峰; 黄嘉曦
Original assignee: 深圳易马达科技有限公司
Priority date: 2016-10-13
Filing date: 2016-10-13
Publication date: 2018-04-19
Also published as: CN108337886A

Abstract

Disclosed is a scooter head telescoping device applied to a scooter. The scooter head telescoping device comprises a lower tube (21) fixed on a front wheel base (12) and an upper tube (22) with one end fixed on a handle seat (11) and the other end inserted into the lower tube (21), wherein the upper tube (22) is provided with an elastic column (23) extending and retracting elastically, the lower tube (21) is provided with a positioning hole (211) for inserting the elastic column (23), the upper tube (22) is also provided with a telescopic mechanism (24) for controlling the elastic column (23) to extend and retract, and the telescoping mechanism (24) comprises an ejection mechanism (241) fixed on a bottom part of the upper tube (22) and ejecting the elastic column (23), and a compression rod mechanism (242) making the elastic column (23) retract. In the present invention, a button is arranged on the handle seat (11), avoiding a plurality of buttons being arranged on a side wall of a scooter head (10) at different positions, so the scooter head (10) has a simple structure, and the scooter has an attractive appearance.

Description

Front head telescopic device and scooter

[0001] The present invention relates to the technical field of scooters, and in particular to a front telescopic device and a scooter equipped with the telescopic device.

Background technique

[0002] Scooters are a popular sport and entertainment device. They are popular among teenagers because of their small size, flexible operation, easy to learn and easy to learn. The structure of the scooter can be roughly divided into three major components, one is a flat strip-shaped skateboard for the user to pedal, and the other is a front end with a handlebar and a front end with a front wheel. The front of the existing scooter includes an upper tube and a lower tube that is arranged with the upper tube. Generally, in order to reduce the volume of the scooter after folding, the upper tube can be moved up and down in the lower tube, so that the front end can be telescopic. Traditionally, The outer wall of the upper tube is provided with a spring column, and a positioning hole for inserting the spring column is arranged on the wall of the lower tube, and then a button is arranged on the side wall of the front side corresponding to each positioning hole, and when the front end needs to be telescopic, the column will be inserted. The button corresponding to the positioning hole is pressed to push the column, until the column is separated from the positioning hole, and then the upper tube is stretched, and the relative position of the upper and lower tubes is fixed after the column is pushed into the next positioning hole. Finish the front and rear expansion.

[0003] Since the above structure requires a button to be provided for each positioning hole on the side wall of the front side, the number of buttons is set to be large, so that the telescopic structure is complicated and affects the appearance of the vehicle body.

technical problem

[0004] An object of the present invention is to provide a front-end telescopic device, which aims to solve the technical problem that the structure of the front and rear of the scooter of the scooter is complicated and affects the aesthetic appearance of the vehicle body.

Problem solution

Technical solution

[0005] The present invention is achieved by a vehicle head telescopic device for telescopic stretching of a scooter, the vehicle head including a handle seat for controlling the traveling of the scooter and being mounted on both sides of the front wheel of the scooter and used for driving a front wheel base of the scooter front wheel steering, the front head telescopic device includes a lower tube fixed to the front wheel base, one end is fixed to the handle seat and the other end is extended to the lower tube and inserted Upper in the lower tube a tube, the upper tube is provided with an elastically stretchable column, the lower tube is provided with a positioning hole for inserting the column, and the upper tube is further provided with a telescopic mechanism for controlling the expansion and contraction of the column. The telescopic mechanism includes an eject mechanism fixed to the bottom of the upper tube and used to eject the post and one end extending through the handle base and the other end toward the post and abutting the post to enable the A strut mechanism that contracts the column.

[0006] Further, the ejecting mechanism includes a column base fixed to an inner wall of the upper tube, and the column base is provided with a guiding hole extending along a radial direction of the upper tube, the bomb The column is disposed in the guiding hole, and a spring is disposed in the guiding hole to push the bottom of the guiding hole and push the column at the other end to insert the column into the positioning hole.

[0007] Further, the pressing rod mechanism includes a button disposed on the handle base and a lower pressing link that is fixed to the button at one end and extends to the column and abuts against the column. .

[0008] Further, the spring column is provided with a first inclined surface facing the lower pressing link, and the bottom of the lower pressing link is provided with a pressing surface of the first inclined surface to shrink the elastic column. The second slope.

[0009] Further, the pressing rod mechanism further includes a base cover fixed to the base of the column, and one end is connected to the base cover and the other end is connected to the lower pressing link to The return spring that pulls up the link up.

[0010] Further, the front end expansion device further includes a bushing inserted at an upper end of the lower tube and fixed to the inner wall of the lower tube to block the upward movement of the column.

[0011] Further, the outer wall of the bushing is convexly provided with a barb, and the inner wall of the lower pipe is provided with a locking hole for inserting the barb to block the upward movement of the bushing relative to the lower pipe, An annular flange is outwardly protruded from an upper edge of the bushing in a radial direction of the bushing, the annular flange being clamped to an upper edge of the lower pipe to block the bushing from being downward with respect to the lower pipe motion.

[0012] Further, the bushing is an elastic bushing having elasticity in a radial direction.

[0013] Further, the lower end of the bushing is provided with a u-shaped guide groove for moving the column upwards for the column to slide in and block the upward movement of the column.

[0014] The present invention also provides a scooter including a front end disposed in front of the scooter, a handle seat disposed on the top of the front head and used to control the scooter travel, located at the bottom of the front and mounted on the scooter A front wheel base that drives the front wheel of the scooter is flanked on both sides of the front wheel, and a front end telescopic device that is disposed in the front end for telescoping the front end of the scooter, and the front end expansion device is the above-mentioned front retractable device. Advantageous effects of the invention

Beneficial effect

[0015] The technical effect of the present invention relative to the prior art is: The front-end telescopic device provided by the present invention comprises a lower tube fixed on the front wheel base, one end is fixed on the handle seat and one end is inserted in the lower tube, the upper tube Inserted in the lower tube and moved along the length of the lower tube, so that the front end is retractable; the front retractable device uses the ejecting mechanism to project the projectile into the positioning hole to fix the upper and lower tubes, and press the column with the pressing rod mechanism The positioning hole is used to expand and contract the telescopic device. In the present invention, the pressing rod mechanism for retracting the column is vertically installed in the vehicle head, and the upper end thereof penetrates the handle seat, so that the pressing mechanism can be pressed on the handle seat. The contraction of the column avoids the need to provide a plurality of buttons at different positions on the side wall of the front side, thereby making the structure of the front head simple and the appearance of the scooter beautiful.

Brief description of the drawing

DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention or the description of the prior art will be briefly described below. Obviously, the drawings described below are merely Some embodiments of the present invention may also be used to obtain other drawings based on these drawings without departing from the prior art.

1 is a front view of a scooter according to an embodiment of the present invention;

2 is an exploded view of a vehicle head expansion device according to an embodiment of the present invention;

[0019] FIG. 3 is a schematic view of the pressing bar mechanism according to an embodiment of the present invention;

4 is a schematic view of the pressing bar mechanism according to an embodiment of the present invention.

[0021] Description of the reference numerals:

[Table 1]

Embodiments of the invention

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

[0023] In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical" The orientation or positional relationship of the indications of "directly", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, for convenience of description of the present invention and simplified description. It is not intended to be a limitation or limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" is two or more, unless specifically defined otherwise.

[0025] In the present invention, the terms "installation", "connected", "connected", "fixed" and the like should be understood broadly, and may be, for example, a fixed connection or a Removable connection, or integrated; can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the internal connection of two elements or the interaction of two elements. The meaning of the above terms in the present invention can be understood by those skilled in the art on a case-by-case basis.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Referring to FIG. 1 to FIG. 4, a front end expansion device 20 according to an embodiment of the present invention is used for telescopic expansion of a scooter. The front end 10 includes a handle base 11 for controlling the traveling of the scooter and is mounted on the scooter. A front wheel base 12 on both sides of the front wheel for driving the front wheel of the scooter, the front end expansion device 20 includes a lower tube 21 fixed to the front wheel base 12, and one end is fixed to the handle base 11 And an upper tube 22 extending from the other end to the lower tube 2 1 and inserted into the lower tube 21, the upper tube 22 is provided with an elastically stretchable elastic column 23, and the lower tube 21 is provided with The positioning hole 211 is inserted into the positioning hole 211 of the upper tube 22, or may be a blind hole that is outwardly recessed in the radial direction of the upper tube 22 by the inner wall of the upper tube 22. A plurality of the positioning holes 211 are disposed on the lower tube 21 along the longitudinal direction of the lower tube 21, and the upper tube 22 is further provided with a telescopic mechanism 24 for controlling the expansion and contraction of the column 23, and the telescopic mechanism 24 Included at the bottom of the upper tube 22 and used to move the column 23 ejecting mechanism 241 and a pressing mechanism 242 extending through the handle base 11 and the other end to the column 23 and abutting the column 23 to contract the column 23, the eject mechanism The 241 may be a device capable of horizontally ejecting the column 23 using a spring, a spring, or the like. The pressing mechanism 242 can convert the vertical pressure into a horizontal thrust by means of gear transmission, lever principle, etc., to achieve the contraction of the column 23.

[0028] The upper tube 22 in the present invention is inserted into the lower tube 21 and moves along the length of the lower tube 21, so that the head 10 of the vehicle is retractable; the front-end telescopic device uses the eject mechanism 241 to project the spring 23 into the positioning hole. 211 to make the upper tube 22 and The lower tube 21 is fixed, and the column 23 is pressed out of the positioning hole 211 by the pressing rod mechanism 242 to expand and contract the head expansion device 20. In the embodiment of the present invention, the pressing rod mechanism 242 for contracting the column 23 is vertically installed. The upper tube 22 has an upper end extending through the handle base 11, so that the pressing mechanism 242 can be directly pressed on the handle base 11 to achieve the contraction of the column 23, thereby avoiding the provision of a plurality of buttons 2421 on the side wall of the front end 10, thereby The structure of the front head 10 is simple, and the scooter has a beautiful appearance.

[0029] Referring to FIG. 2 to FIG. 4, the eject mechanism 241 includes a bullet base 2411 fixed to an inner wall of the upper tube 22, and the column base 2411 is disposed along the upper tube. a guiding hole 24111 extending in a radial direction of the 22, the spring column 23 is received in the guiding hole 24111, and the guiding hole 24111 is further provided with one end to push against the bottom of the guiding hole 24111 and the other end pushing The column 23 is inserted into the spring 2412 of the positioning hole 211 to insert the column 23. The spring 2412 of the present practical embodiment is always compressed, and gives the spring 23 an elastic force in the direction of the positioning hole 211, that is, a horizontal rightward elastic force. When the pressing rod mechanism 242 is not pressed, the spring 23 is at the spring 2412. Under the thrust, it moves to the right along the guiding hole 24111, and is inserted into the positioning hole 211 to realize the locking of the front-end telescopic device 20. When the scooter head 10 needs to be telescopic, then the pressing mechanism 242 is pressed, and the pressing mechanism is pressed. 242, forcing the column 23 to move horizontally to the left along the guiding hole 24111, and compressing the spring 2412. After the column 23 is disengaged from the positioning hole 211, the upper tube 22 can slide relative to the lower tube 21, and the column 23 reaches the next positioning hole. 211吋, 吋, the loose pressing mechanism, the column 23 is again inserted into the positioning hole 211, and the locking of the front telescopic device 20 is realized.

[0030] Referring to FIG. 1, further, the pressing mechanism 242 includes a button 24 21 disposed on the handle base 11 and one end fixed to the button 2421 and the other end extending toward the column 23 The lowering link 2422 is held by the column 2 3 . The button 2421 in the practical embodiment can be designed according to the shape and structure as long as it is provided that one end of the button is leaked to the surface of the handle base 11 and the other end is fixed to the lower pressing link 2422, which can save space and can also save space. Therefore, in designing the internal structure of the handle base 11, the design of the handle base 11 is restricted without being constrained by the shape of the button 2421.

[0031] Referring to FIG. 3 to FIG. 4, further, the spring column 23 is provided with a first inclined surface 231 facing the pressing link 2422, and the bottom of the pressing link 2422 is pressed against the bottom. The first slope 231 is described as a second slope 24221 that contracts the column 2 3 . In the embodiment of the present invention, the second inclined surface 24221 presses the first inclined surface 231 向下 downward, and the force of the elastic column 23 is inclined downward to the left. Since the vertical direction of the spring 23 is restricted, the spring column is 23 will move to the left and out of the positioning hole 211, and the first telescopic device 20 can be expanded and contracted. The embodiment of the invention realizes the horizontal movement of the elastic column 23 by two inclined surfaces, and has the advantages of simple structure and good reliability.

[0032] Referring to FIG. 2 to FIG. 4, further, the pressing mechanism 242 further includes a base cover 2423 fixed to the column base 241 1 and one end connected to the base cover 2423 and The other end is connected to the lower pressing link 2422 to pull up the lower pressing link 2422 to the return spring 2424. In the use of the pressing link 2422, when the pressing link 2422 is no longer pressed, the pressing link 242 2 may still be in a depressed state due to the frictional force, so that the spring 23 is difficult to eject, which cannot be realized. The locking device 20 is locked. In the embodiment of the present invention, a base cover 2423 is disposed on the base of the spring 23, and the lower pressing link 2422 is pulled up by the return spring 2424, so that the lower pressing link 2422 is no longer pressed. That is, the column 23 can be smoothly ejected, and the locking of the head extension device 20 is achieved.

[0033] Referring to FIG. 2 to FIG. 4, further, the front end expansion device 20 further includes an upper end of the lower tube 21 and is fixed to an inner wall of the lower tube 21 to block the upward movement of the column 23. Bushing 30. When the telescopic device 20 is telescoped, the pressing mechanism is pressed to cause the column 23 to contract, and the column 23 is disengaged from the positioning hole 211. Thereafter, the upper tube 22 can move upward along the inner wall of the lower tube 21, but if not If the maximum height of the rise of the upper tube 22 is limited, the height of the upper tube 22 may be raised too much, so that the upper tube 22 is pulled away from the lower tube 21, causing the front-end telescopic device 20 to be two-section, which is not conducive to the scooter. Riding. Therefore, in the embodiment of the present invention, the limit mechanism is fixedly mounted at the uppermost end of the lower tube 21, that is, the bushing 30, specifically, when the column 23 is compressed and follows the upper tube 22, as the bushing 30 is The inner diameter is smaller than the inner diameter of the lower tube 21, so that the length of the compressed column 23 can still resist the lower edge of the bushing 30, and the bushing 30 blocks the rise of the upper tube 22 by blocking the rise of the column 23. The upper tube 22 is prevented from rising too high, so that the front and rear telescopic mechanism becomes two.

[0034] Referring to FIG. 2 to FIG. 4, further, the outer wall of the bushing 30 is convexly provided with a barb 31, and the inner wall of the lower tube 21 is provided with the barb 31 inserted to block the upper tube 22 The sleeve 30 is opposite to the latching hole 212 of the lower tube 21, and the upper edge of the sleeve 30 is outwardly convexly provided with an annular flange 32 along the radial direction of the bushing 30, and the annular flange 32 is clamped. The upper edge of the lower tube 21 blocks the downward movement of the bushing 30 relative to the lower tube 2 1 . Specifically, the latching hole 212 and the positioning hole 211 may be a through hole disposed in the inner wall of the lower tube 21, or may be a blind hole recessed outward from the inner wall of the lower tube 21, and the bushing 30 has elasticity in a radial direction. The elastic bushing ₃₀ , specifically, the outer wall of the elastic bushing 30 has a narrow shape along its length The slit 34 makes the bushing 30 elastic. The bushing 30 in the embodiment of the present invention has a simple structure and is convenient to install. Specifically, the bushing 30 is mounted on the lower tube 21吋, and only the outer wall of the bushing 30 is squeezed to reduce the inner diameter of the bushing 30, and then the bushing 30 is then- The end is inserted into the lower tube 21, and the other end of the bushing 30 is pushed up to move deep inside the lower tube 21. When the barb 31 reaches the latching hole 212, the barb 31 is inserted into the latching hole 212, and the same bushing 30 is outwardly ejected, and in this case, the annular flange 32 just abuts against the upper edge of the lower tube 21, thus achieving the fixation of the bushing 30 and the lower tube 21. In the embodiment of the present invention, the installation of the bushing 30 and the lower tube 21 requires no external tools, and it is only necessary to manually press the bushing 30 and then insert it into the lower tube 21, which is convenient and quick.

[0035] Referring to FIG. 2 to FIG. 4, further, the lower end of the bushing 30 is provided with a U-shaped movement for the spring 23 to slide upwardly and block the spring 23 from moving upward. Guide groove 33. In the embodiment of the present invention, the U-shaped guide groove 33 is directed toward the sliding path of the column 23, and when the column 23 moves upward with the upper tube 22 to the maximum height, the column 23 slides into the U-shaped channel 33, and the bullet The outer circular surface of the column 23 is abutted against the arc portion at the bottom of the U-shaped guide groove 33, and the arc-shaped portion of the bottom portion of the U-shaped guide groove 33 has a large contact area with the outer circular surface of the column 23, and rises to the maximum height and collides at the column 23 The bushing 30 吋 can reduce the pressure of the collision , and protect the column 23 and the bushing 30 from damage.

[0036] The present invention also provides a scooter comprising a front end 10 disposed in front of the scooter, a handle base 11 disposed on the top of the front head 10 and configured to control the travel of the scooter, located at the bottom of the front end 10 and a front wheel base 12 erected on both sides of the front wheel of the scooter to drive the front wheel of the scooter, and a front end telescopic device 20 disposed in the front head 10 for telescopic expansion of the front end of the scooter, the front end expansion device 20 is the above-described front end expansion device 20. The head extension device 20 has the same structural features as the head extension device 20 of each of the above embodiments, and functions the same, and will not be described herein.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalents, and improvements made within the spirit and scope of the present invention should be included in the present invention. Within the scope of protection of the invention.

Claims

claims

A head telescopic device used for the telescopic front of a scooter. The front includes a handle seat used to control the movement of the scooter and a front wheel installed on both sides of the front wheel of the scooter and used to drive the front wheel of the scooter to travel and turn. Base, characterized in that the front telescopic device includes a down tube fixed on the front wheel base, one end fixed on the handle seat and the other end extending towards the down tube and inserted into the down tube The upper tube in the upper tube, the elastically telescopic spring post provided on the upper tube and the telescopic mechanism for controlling the expansion and contraction of the spring post, the lower tube is provided with a positioning hole for the spring post to be inserted, the The telescopic mechanism includes an ejection mechanism fixed to the bottom of the upper tube and used to eject the elastic column, and one end penetrates the handle base and the other end extends toward the elastic column and resists the elastic column to make the elastic column Compression rod mechanism for column contraction.

The front telescopic device of claim 1, wherein the ejection mechanism includes a spring base fixed to the inner wall of the upper tube, and the spring base is provided with a spring base along a radial direction of the upper tube. The guide hole extends in the direction, and the elastic column is accommodated in the guide hole. The guide hole is also provided with one end to push against the bottom of the guide hole and the other end to push the elastic column to push the elastic column. Insert the spring into the positioning hole.

The front telescopic device according to claim 1, characterized in that the pressure rod mechanism includes a button provided on the handle seat and one end is fixed to the button and the other end extends toward the spring column and resists the spring column. The downward pressure connecting rod of the spring column.

The front telescopic device according to claim 3, characterized in that, the spring column is provided with a first inclined surface facing the downward pressure connecting rod, and the bottom of the downward pressure connecting rod is provided with a spring that is pressed against the first The inclined surface is a second inclined surface for shrinking the elastic column.

The front telescopic device of claim 1, wherein the pressure rod mechanism further includes a base cover fixed on the base of the spring column, and one end connected to the base cover and the other end connected to the base cover. The push-down connecting rod is used to pull up the return spring of the push-down connecting rod upward. The front telescopic device according to any one of claims 1 to 5, further comprising a bushing inserted at the upper end of the down tube and fixed to the inner wall of the down tube to block the upward movement of the spring column.

The head telescopic device according to claim 6, characterized in that: the outer wall of the bushing is protrudingly There are barbs, and the inner wall of the lower tube is provided with a locking hole for the barbs to be inserted to prevent the upward movement of the bushing relative to the lower tube. The upper edge of the bushing is directed in the radial direction of the bushing. An annular flange is provided on the outside, and the annular flange is clamped on the upper edge of the lower tube to block the downward movement of the bushing relative to the lower tube.

[Claim 8] The head telescopic device according to claim 6, wherein the bushing is an elastic bushing with elasticity in the radial direction.

[Claim 9] The front telescopic device of claim 6, wherein the lower end of the bushing is provided with a spring for sliding in and blocking the upward movement of the spring column when the spring column moves upward. U-shaped guide channel.

[Claim 10] A scooter, the scooter includes a front end arranged in front of the scooter, a handle seat disposed on the top of the front end and used to control the movement of the scooter, and a handle seat located at the bottom of the front end and mounted on both front wheels of the scooter. There is a front wheel base that drives the front wheel of the scooter to turn, and a head telescopic device disposed in the front of the scooter for the telescopic front of the scooter. It is characterized in that the front telescopic device is any of claims 1-9. The head telescopic device described in one item.