CN204900500U - Children bike auxiliary wheel strutting arrangement's back shaft - Google Patents
Children bike auxiliary wheel strutting arrangement's back shaft Download PDFInfo
- Publication number
- CN204900500U CN204900500U CN201520685749.4U CN201520685749U CN204900500U CN 204900500 U CN204900500 U CN 204900500U CN 201520685749 U CN201520685749 U CN 201520685749U CN 204900500 U CN204900500 U CN 204900500U
- Authority
- CN
- China
- Prior art keywords
- auxiliary wheel
- nut
- back shaft
- axis body
- annular slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 101100495256 Caenorhabditis elegans mat-3 gene Proteins 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The utility model discloses a children bike auxiliary wheel strutting arrangement's back shaft, it includes axis body, nut and card pad, axis body one end be equipped with that the shaft shoulder, centre are equipped with the polished rod, the other end is equipped with the external screw thread, the external screw thread on be equipped with the nut, the external screw thread in the nut outside be equipped with ring groove on the surface, ring groove on be equipped with the card pad, one side of card pad be equipped with straight shape bayonet socket. The utility model discloses simple structure, simple to operate and effect are showing, and it can effectively be solved behind the current children bike and to produce not hard uply and the inhomogeneous technical problem of auxiliary wheel wearing and tearing between auxiliary wheel support frame and the auxiliary wheel screw axle.
Description
Technical field
The utility model belongs to child's bicycle manufacturing technology field, is specifically related to a kind of back shaft of child's bicycle auxiliary wheel support device.
Background technique
Child's bicycle is one of present of preferring of the children in 4-6 year, is also that children for learning rides the best instrument of two-wheeled cycle.Most child's bicycle arranges auxiliary wheel in trailing wheel both sides, stablizes to keep vehicle body.Auxiliary wheel is fixed on trailing wheel scaffold by supporting frame, existing auxiliary wheel support device, and pipe or the band steel of adopting bends to L shape more, and auxiliary wheel is fixed by screws in the lower end of L shape.Because screw is that one end and L shape supporting frame are fixed, so screw is easily from loose or dislocation L shape supporting frame; Can cause again auxiliary wheel discontinuity on screw, Long-Time Service can cause the wearing and tearing between auxiliary wheel and screw not of uniform size, and the endoporus of auxiliary wheel large position of wearing and tearing easily extrudes cracking, thus shortens the working life of auxiliary wheel.
Summary of the invention
The purpose of this utility model is to provide a kind of structure relatively simple, reasonable in design, easy for installation and improve the back shaft of child's bicycle auxiliary wheel support device of Be very effective, it can solve auxiliary wheel supporting way after existing child's bicycle with various drawbacks.
For achieving the above object, the back shaft of a kind of child's bicycle auxiliary wheel of the utility model support device, it comprises axis body, nut and mat, described axis body one end is provided with the shaft shoulder, centre is provided with polished rod, the other end is provided with outside thread, described outside thread is provided with nut, externally threaded surface outside nut is provided with annular slot, and described annular slot is provided with mat, and the side of described mat is provided with straight shape bayonet socket.
In technique scheme, the diameter 1.5 ~ 4mm larger than externally threaded large footpath of described polished rod.
The degree of depth of described annular slot is 1 ~ 2mm.
Width 1.5 ~ the 2mm less of the diameter of annular slot of described bayonet socket.
After adopting technique scheme, the two ends of back shaft are fixed on two straight flanges of supporting frame U-shaped structure, this means of fixation is fixed on L shape supporting frame than one end, solid and reliable, can avoid again occurring that bolt axis frequently crosses the phenomenon of quick-wearing from the loosening disengagement of supporting frame and auxiliary wheel local.
Accompanying drawing explanation
Fig. 1 is the structural representation of the back shaft of a kind of child's bicycle auxiliary wheel of the utility model support device;
Fig. 2 is the structural representation of Fig. 1 central axis;
Fig. 3 is the structural representation of mat in Fig. 1.
Respectively be designated in accompanying drawing: 1, axis body, 11, polished rod, 12, outside thread, 13, annular slot, 14, the shaft shoulder, 2, nut, 3, mat, 31, bayonet socket.
Embodiment
Be described further below in conjunction with the back shaft of accompanying drawing to a kind of child's bicycle auxiliary wheel of the utility model support device:
From Fig. 1 and Fig. 2, the utility model it comprise axis body 1, nut 2 and mat 3, described axis body 1 one end is provided with the shaft shoulder 14, centre is provided with polished rod 11, the other end is provided with outside thread 12, described outside thread 12 is provided with nut 2, the surface of the outside thread 12 outside nut 2 is provided with annular slot 13, described annular slot 13 is provided with mat 3, and the side of described mat 3 is provided with straight shape bayonet socket 31.
Installation method of the present utility model is, first one end of axis body 1 is injected in the mounting hole of auxiliary wheel supporting frame, and make the shaft shoulder 14 be fitted in the outside of supporting frame, auxiliary wheel is arranged on polished rod 11 place, after the part of outside thread 12 passes the opposite side of supporting frame, again nut 2 is screwed on outside thread 12, finally mat 3 is stuck in annular slot 13.
In the present embodiment, the centre of described axis body 1 is provided with polished rod 11, and the diameter of polished rod 11 1.5 ~ 4mm larger than the large footpath of outside thread 12, this both ensure that the support strength of axis body 1, can ensure that again auxiliary wheel rotates flexibly; The surface of described outside thread 12 is provided with annular slot 13, is provided with mat 3 in described annular slot 13, and this structure can guarantee that nut 2 can not from accidental axis body 1.
In the present embodiment, fixing reliable for guaranteeing nut 2 axial position on axis body 1, diameter 1.5 ~ the 4mm larger than the large footpath of outside thread 12 of described polished rod 11, namely nut 2 and outside thread 12 joint one end arranges a ring-shaped step, the other end is provided with annular slot 13 and mat 3.
In the present embodiment, as seen from Figure 3, conveniently installation and removal mat 3, the width 1.5 ~ 2mm less of the diameter of annular slot 13 of described bayonet socket 31, this structure also can prevent mat 3 from coming off in annular slot 13.
In the present embodiment, in order to not weaken the intensity of axis body 1, the degree of depth of described annular slot 13 is 1 ~ 2mm.
Claims (4)
1. the back shaft of a child's bicycle auxiliary wheel support device, comprise axis body (1), nut (2) and mat (3), it is characterized in that: described axis body (1) one end is provided with the shaft shoulder (14), centre is provided with polished rod (11), the other end is provided with outside thread (12), described outside thread (12) is provided with nut (2), the surface of the outside thread (12) in nut (2) outside is provided with annular slot (13), described annular slot (13) is provided with mat (3), and the side of described mat (3) is provided with straight shape bayonet socket (31).
2. the back shaft of a kind of child's bicycle auxiliary wheel support device according to claim 1, is characterized in that: the diameter 1.5 ~ 4mm larger than the large footpath of outside thread (12) of described polished rod (11).
3. the back shaft of a kind of child's bicycle auxiliary wheel support device according to claim 1, is characterized in that: the degree of depth of described annular slot (13) is 1 ~ 2mm.
4. the back shaft of a kind of child's bicycle auxiliary wheel support device according to claim 1, is characterized in that: the width 1.5 ~ 2mm less of the diameter of annular slot (13) of described bayonet socket (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685749.4U CN204900500U (en) | 2015-09-07 | 2015-09-07 | Children bike auxiliary wheel strutting arrangement's back shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685749.4U CN204900500U (en) | 2015-09-07 | 2015-09-07 | Children bike auxiliary wheel strutting arrangement's back shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900500U true CN204900500U (en) | 2015-12-23 |
Family
ID=54922680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520685749.4U Expired - Fee Related CN204900500U (en) | 2015-09-07 | 2015-09-07 | Children bike auxiliary wheel strutting arrangement's back shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041839A (en) * | 2015-09-07 | 2015-11-11 | 刘畅 | Supporting shaft of auxiliary wheel supporting device of bicycle for children |
-
2015
- 2015-09-07 CN CN201520685749.4U patent/CN204900500U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041839A (en) * | 2015-09-07 | 2015-11-11 | 刘畅 | Supporting shaft of auxiliary wheel supporting device of bicycle for children |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20170907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |