CN214524227U - Balance car and swing limit structure thereof - Google Patents

Abstract

The utility model discloses a balance car and swing limit structure thereof belongs to balance car technical field, and aim at overcomes the spacing and the spacing realization through two parts of swing angle of the axial of current swing car pivot, the more defect of part. The swing limiting structure comprises a limiting post fixed on the rotating shaft or the rotating shaft seat, a limiting groove is formed in the end portion of the rotating shaft seat or the rotating shaft, an opening is formed in the end edge of the rotating shaft seat or the rotating shaft through the limiting groove, and the limiting post is embedded into the limiting groove and can swing in the limiting groove. The axial spacing of the rotating shaft and the rotating shaft seat can be realized through the spacing column, the swinging angle of the rotating shaft relative to the rotating shaft seat is limited, the rotating shaft is not required to be axially limited by the clamp spring, necessary parts matched with the rotating shaft and the rotating shaft seat are reduced, the assembly efficiency is improved, and the production cost is reduced.

Description

Balance car and swing limit structure thereof

Technical Field

The utility model belongs to the technical field of the balance car, a balance car and swing limit structure thereof is related to.

Background

The existing swing car comprises two pedals capable of swinging relatively, shaft seats are respectively installed on the two pedals, a rotating shaft is installed on each shaft seat, one end of each rotating shaft is fixed to the corresponding rotating shaft seat, and the other end of each rotating shaft is rotatably connected with the corresponding fixed shaft seat. One end of the rotating shaft penetrates out of the fixed shaft seat, and the penetrating part is axially limited through the clamp spring, so that the rotating shaft is prevented from being separated from the fixed shaft seat. The rotating shaft seat is provided with a limiting pin, the arc-shaped hole limiting hole is formed in the fixed shaft seat, the limiting pin can move in the limiting hole after being inserted into the limiting hole, and the limiting pin can limit the moving distance through the end wall of the limiting hole, so that the limitation of the relative swing angle of the two pedals is realized, and the two pedals are prevented from swinging too large. The axial of current swing car pivot is spacing and swing angle is spacing to be realized through two parts, and the part is more, and the assembly is comparatively troublesome, and the cost is higher.

Disclosure of Invention

The utility model discloses problem to prior art existence proposes a balance car and swing limit structure thereof, and aim at overcomes the spacing and the spacing realization through two parts of swing angle of the axial of current swing car pivot, the more defect of part.

The utility model discloses a realize like this:

the utility model provides a balance car swing limit structure, balance car include the pivot seat and can rotate the pivot of installing on the pivot seat, its characterized in that, swing limit structure is including fixing the spacing post on pivot or pivot seat, the pivot seat or the tip of pivot has the spacing groove, the spacing groove is in the pivot seat or the terminal edge of pivot has the opening, spacing post embedding the spacing groove can swing in the spacing groove. The axial spacing of the rotating shaft and the rotating shaft seat can be realized through the spacing column, the swinging angle of the rotating shaft relative to the rotating shaft seat is limited, the rotating shaft is not required to be axially limited by the clamp spring, necessary parts matched with the rotating shaft and the rotating shaft seat are reduced, the assembly efficiency is improved, and the production cost is reduced.

Preferably, the limit column is fixed on the rotating shaft in an interference fit manner. This is a fixing way of the limit post.

Preferably, the limiting column is fixed on the rotating shaft through threaded connection. This is another embodiment of the spacing post.

Preferably, the limiting column is integrally formed on the rotating shaft, or the limiting column is welded on the rotating shaft. These are two other embodiments of the fixing post. Spacing post integrated into one piece can further reduce the accessory in the pivot.

Preferably, the rotating shaft seat is provided with a pair of limiting grooves, the two limiting grooves are respectively distributed on two sides of the rotating shaft, and two ends of the limiting column are respectively embedded into the two limiting grooves. Therefore, the stress of the limiting column is more uniform, the two end parts of the limiting column share the stress, and the strength requirement on the limiting column is reduced.

Preferably, a POM plastic layer is fixed on the inner wall of the shaft hole of the rotating shaft seat, and the POM plastic layer is shorter than the rotating shaft seat. Set up the POM plastic layer on the inner wall in shaft hole, make full use of POM plastics from the skidding nature and good wearability, slow down the wearing and tearing between pivot and the second pedestal, improve life, shorter POM plastic layer can give the spacing groove and step down, avoids processing slotted hole structure on the POM plastic layer, reduces the processing degree of difficulty, material saving.

Preferably, the POM plastic layer is cylindrical, and the POM plastic layer has a notch penetrating through the POM plastic layer along the length direction of the POM plastic layer. The POM plastic layer's of being convenient for processing like this, the installation of the POM plastic layer of also being convenient for and second pedestal sets up the not shaft hole of equidimension of breach POM plastic layer of being convenient for can adaptation, improves the adaptation ability of POM plastic layer.

Preferably, the notch is located on the top of the POM plastic layer. Because during pivot and the cooperation of POM plastic layer, the main effort of pivot to the POM plastic layer is decurrent, and the breach setting can reduce the POM plastic layer at the breach position atress at the top of POM plastic layer, reduces weak position atress, improves the stability of POM plastic layer.

The balance car is characterized by comprising the swing limiting structure, and further comprising a first seat body and a second seat body which can swing relatively, wherein the first seat body is used for fixing a rotating shaft seat, the second seat body is used for fixing a fixed shaft seat, the rotating shaft is fixed on the fixed shaft seat, a gasket is arranged between the rotating shaft seat and the fixed shaft seat, the gasket is sleeved on the rotating shaft, and a limiting groove is positioned at one end, far away from the fixed shaft seat, of the rotating shaft seat. The packing rings are preferably two POM packing rings, the fixed shaft seat is abutted to the rotating shaft seat through the packing rings, so that the rotating shaft can be limited to move towards one side of the rotating shaft seat, the rotating shaft can be prevented from moving towards one side of the fixed shaft seat through the limiting columns, and the axial positioning of the rotating shaft is realized.

Preferably, the fixed shaft seat is fixedly connected with the rotating shaft through a fixed column, and the rotating shaft is in clearance fit or transition fit with the fixed shaft seat. Therefore, the requirements on the machining precision of the rotating shaft and the fixed shaft seat can be reduced, and the assembly difficulty of the rotating shaft and the fixed shaft seat is reduced.

The utility model provides a balance car and swing limit structure thereof just can realize through spacing post that the axial of countershaft and rotation shaft base is spacing, and the swing angle of restriction pivot relative rotation shaft base simultaneously need not the jump ring and carries out the axial spacingly to the countershaft, has reduced pivot and rotation shaft base complex necessary part, improves assembly efficiency, reduction in production cost.

Furthermore, the limiting groove with the opening is convenient for installation of the limiting column. For example, when the limiting post needs to be welded on the rotating shaft after the rotating shaft seat and the rotating shaft are assembled, the opening is convenient for welding operation. When the limiting column is connected to the rotating shaft through threads, the opening is convenient for observing the alignment condition of the screw hole of the rotating shaft and the limiting groove, and is also convenient for observing the alignment condition of the limiting column with the screw hole. When the limiting column is integrally formed on the rotating shaft, the rotating shaft is inserted into the rotating shaft seat from the end of the rotating shaft seat far away from the fixed shaft seat, and then is matched with the fixed shaft seat, and the limiting groove must be provided with an opening at the moment.

Drawings

FIG. 1 is a schematic view of a matching structure of a rotating shaft and a fixed shaft seat, and a rotating shaft seat;

FIG. 2 is a schematic view of an exploded structure of a rotating shaft, a fixed shaft seat and a rotating shaft seat;

fig. 3 is a schematic structural diagram of the rotary shaft seat.

Reference is made to the accompanying drawings in which: 100. a rotating shaft seat; 110. a limiting groove; 120. a POM plastic layer; 121. a notch; 200. fixing the shaft seat; 210. fixing a column; 300. a rotating shaft; 310. a gasket; 320. a limiting column.

Detailed Description

The following detailed description is made of specific embodiments of the present invention with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and master. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The embodiment provides a balance car, which comprises a first seat body and a second seat body which can swing relatively, as shown in fig. 1-3, the first seat body fixes a rotating shaft seat 100, the second seat body fixes a fixed shaft seat 200, a rotating shaft 300 is fixed on the fixed shaft seat 200, the rotating shaft 300 cannot rotate relative to the fixed shaft seat 200, the rotating shaft 300 and the rotating shaft seat 100 are rotatably connected, that is, the rotating shaft 300 can rotate on the rotating shaft seat 100. A gasket 310 is arranged between the rotary shaft seat 100 and the fixed shaft seat 200, the gasket 310 is sleeved on the rotary shaft 300, a swing limiting structure is arranged between the rotary shaft 300 and the rotary shaft seat 100, and the limiting groove 110 is located at one end, far away from the fixed shaft seat 200, of the rotary shaft seat 100.

The swing limiting structure comprises a limiting post 320 fixed on the rotating shaft 300, the end of the rotating shaft base 100 is provided with a limiting groove 110, the limiting groove 110 is provided with an opening at the end edge of the rotating shaft base 100 or the rotating shaft 300, and the limiting post 320 is embedded into the limiting groove 110 and can swing in the limiting groove 110. In other alternative embodiments, the limiting post 320 may be fixed on the rotating shaft seat 100, and the limiting groove 110 is disposed on the rotating shaft 300.

The washers 310 are preferably two POM washers 310, the fixed shaft seat 200 abuts against the rotary shaft seat 100 through the washers 310, so that the rotary shaft 300 can be limited from moving to one side of the rotary shaft seat 100, and the rotary shaft 300 can be prevented from moving to one side of the fixed shaft seat 200 through the limiting posts 320, thereby achieving the axial positioning of the rotary shaft 300.

The axial spacing of the rotating shaft 300 and the rotating shaft seat 100 can be realized through the spacing column 320, the swinging angle of the rotating shaft 300 relative to the rotating shaft seat 100 is limited, the rotating shaft 300 is not required to be axially limited by a clamp spring, necessary parts for matching the rotating shaft 300 and the rotating shaft seat 100 are reduced, the assembly efficiency is improved, and the production cost is reduced.

When a user steps on the first seat body and the second seat body respectively with feet, the balance car can move forwards or turn by controlling the swing angles of the first seat body and the second seat body and matching with a sensor and a controller in the balance car.

The limiting post 320 is fixed on the rotating shaft 300 in an interference fit manner, or the limiting post 320 is fixed on the rotating shaft 300 through a threaded connection, or the limiting post 320 is integrally formed on the rotating shaft 300, or the limiting post 320 is welded on the rotating shaft 300.

The spacing slots 110 having openings facilitate the installation of the spacing posts 320. For example, when the shaft seat 100 and the shaft 300 are assembled and the position-limiting post 320 needs to be welded to the shaft 300, the opening facilitates the welding operation. When the position-limiting post 320 is connected to the rotating shaft 300 through threads, the opening facilitates observation of the alignment between the screw hole of the rotating shaft 300 and the position-limiting groove 110, and also facilitates observation of alignment of the position-limiting post 320 with the screw hole. When the limiting post 320 is integrally formed on the rotating shaft 300, the rotating shaft 300 needs to be inserted into the rotating shaft seat 100 from the end of the rotating shaft seat 100 away from the fixed shaft seat 200, and then is matched with the fixed shaft seat 200, and at this time, the limiting groove 110 must have an opening.

As shown in fig. 1-2, the fixed shaft seat 200 and the rotating shaft 300 are fixedly connected by the fixed column 210, and the rotating shaft 300 and the fixed shaft seat 200 are in clearance fit or transition fit. Therefore, the requirements on the machining precision of the rotating shaft 300 and the fixed shaft seat 200 can be reduced, and the assembly difficulty of the rotating shaft 300 and the fixed shaft seat is reduced.

As shown in fig. 1-3, the shaft seat 100 has a pair of limiting grooves 110, the two limiting grooves 110 are respectively disposed on two sides of the rotating shaft 300, and two ends of the limiting post 320 are respectively inserted into the two limiting grooves 110. Therefore, the stress of the limiting column 320 is more uniform, the stress is shared by the two end parts of the limiting column 320, and the strength requirement on the limiting column 320 is reduced. In other alternative embodiments, a retaining groove 110 may be provided.

As shown in fig. 3, a POM plastic layer 120 is fixed on the inner wall of the shaft hole of the shaft seat 100, and the POM plastic layer 120 is shorter than the shaft seat 100. Set up POM plastic layer 120 on the inner wall in shaft hole, make full use of POM plastics from the skidding nature and good wearability, slow down the wearing and tearing between pivot 300 and the second pedestal, improve life, shorter POM plastic layer 120 can give spacing groove 110 and step down, avoids processing slotted hole structure on POM plastic layer 120, reduces the processing degree of difficulty, material saving.

The POM plastic layer 120 is cylindrical, and the POM plastic layer 120 has a notch 121 penetrating the POM plastic layer 120 in the longitudinal direction of the POM plastic layer 120. The processing of POM plastic layer 120 of being convenient for like this, the installation of POM plastic layer 120 and second pedestal of also being convenient for sets up breach 121 and is convenient for POM plastic layer 120 can adapt to the not shaft hole of equidimension, improves POM plastic layer 120's adaptability.

The notch 121 is located on top of the POM plastic layer 120. Because when pivot 300 and POM plastic layer 120 cooperate, the main effort of pivot 300 to POM plastic layer 120 is decurrent, and breach 121 sets up the top that can reduce POM plastic layer 120 and put up the atress in breach 121 position at POM plastic layer 120, reduces weak position atress, improves the stability of POM plastic layer 120.

In the description of the present invention, it is to be understood that the terms "central", "lateral", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Claims (10)

1. The utility model provides a balance car swing limit structure, balance car include pivot seat (100) and rotatable pivot (300) of installing on pivot seat (100), its characterized in that, swing limit structure is including fixing spacing post (320) on pivot (300) or pivot seat (100), pivot seat (100) or the tip of pivot (300) has spacing groove (110), spacing groove (110) are in pivot seat (100) or the terminal edge of pivot (300) has the opening, spacing post (320) embedding spacing groove (110) and can swing in spacing groove (110).

2. The swing limiting structure of the balance car according to claim 1, wherein the limiting column (320) is fixed on the rotating shaft (300) in an interference fit manner.

3. The swing limiting structure of the balance car according to claim 1, wherein the limiting column (320) is fixed on the rotating shaft (300) through threaded connection.

4. The swing limiting structure of the balance car according to claim 1, wherein the limiting post (320) is integrally formed on the rotating shaft (300), or the limiting post (320) is welded on the rotating shaft (300).

5. The swing limiting structure of the balance car according to claim 1, wherein the rotating shaft seat (100) has a pair of limiting grooves (110), the two limiting grooves (110) are respectively distributed on two sides of the rotating shaft (300), and two ends of the limiting column (320) are respectively embedded into the two limiting grooves (110).

6. The swing limiting structure of the balance car as claimed in claim 1, wherein a POM plastic layer (120 POM) is fixed on the inner wall of the shaft hole of the shaft seat (100), and the POM plastic layer (120 POM) is shorter than the shaft seat (100).

7. The swing limiting structure of the balance car according to claim 6, wherein the POM plastic layer (120 POM) is cylindrical, and the POM plastic layer (120 POM) has a notch (121) penetrating through the POM plastic layer (120 POM) along the length direction of the POM plastic layer (120 POM).

8. The balance car swing limiting structure of claim 7, wherein the notch (121) is located on top of the POM plastic layer (120 POM).

9. A balance car, comprising the swing limiting structure of any one of claims 1 to 8, further comprising a first seat and a second seat capable of swinging relatively, wherein the first seat fixes the rotating shaft seat (100), the second seat fixes the fixed shaft seat (200), the rotating shaft (300) is fixed on the fixed shaft seat (200), a gasket (310) is disposed between the rotating shaft seat (100) and the fixed shaft seat (200), the gasket (310) is sleeved on the rotating shaft (300), and the limiting groove (110) is located at one end of the rotating shaft seat (100) far away from the fixed shaft seat (200).

10. A balance vehicle according to claim 9, wherein the fixed shaft seat (200) and the rotating shaft (300) are fixedly connected by a fixed column (210), and the rotating shaft (300) and the fixed shaft seat (200) are in clearance fit or transition fit.

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