CN210149492U - Dental disc assembly - Google Patents
Dental disc assembly Download PDFInfo
- Publication number
- CN210149492U CN210149492U CN201921089414.0U CN201921089414U CN210149492U CN 210149492 U CN210149492 U CN 210149492U CN 201921089414 U CN201921089414 U CN 201921089414U CN 210149492 U CN210149492 U CN 210149492U
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- CN
- China
- Prior art keywords
- chain wheel
- square sleeve
- plate
- mainboard
- curb plate
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- 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.)
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Abstract
The utility model discloses a chain wheel assembly, including chain wheel and square sleeve, all set up the shaft hole on chain wheel and square sleeve and supply the pivot to pass, still set up the pin hole on the square sleeve and be used for inserting the pin and fix pivot and square sleeve, the square sleeve includes the mainboard, mainboard and chain wheel parallel arrangement, and the shaft hole is located the mainboard, is provided with the curb plate of extension in wherein three sides of mainboard, and is perpendicular between curb plate and the mainboard, and the curb plate plays the bottom and is provided with the bellying; a slotted hole is formed in the chain wheel at a position corresponding to the protruding part, the protruding part can penetrate through the slotted hole and extend out of the surface of the chain wheel, and the bottom of the side plate is abutted against the surface of the chain wheel; the convex part extends out of the surface part of the chain wheel for embossing deformation so as to fix the square sleeve and the chain wheel. The groove of the chain wheel, the convex part of the square sleeve and the like can be used for embossing at the back of the chain wheel so as to fix the chain wheel and the square sleeve, thereby avoiding the generation of welding, desoldering and slipping; and mainboard and curb plate matched with structure can directly adopt panel mode of cutting, and manufacturing process is simple.
Description
Technical Field
The utility model relates to a bicycle or electric bicycle actuating system field, concretely relates to chain wheel and square cover subassembly.
Background
The split type chain wheel of the electric bicycle comprises a chain wheel body and a chain wheel square sleeve, wherein the chain wheel body is fixedly installed on a rotating shaft of a manpower driving system through the chain wheel square sleeve. The chain wheel body of split type chain wheel links together through welding mode and chain wheel square sleeve among the prior art, because can produce welding stress in welding process, very easily causes the hidden danger of desoldering, leads to appearing the phenomenon of skidding between pivot and the split type chain wheel, influences electric bicycle's normal work.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to solve among the prior art chain wheel and the square sleeve and adopt the technical problem that welding mode easily skidded.
In order to solve the technical problem, the utility model discloses the technical scheme who all adopts is: a chain wheel assembly comprises a chain wheel and a square sleeve, wherein shaft holes are formed in the chain wheel and the square sleeve for a rotating shaft to pass through, pin holes are formed in the square sleeve for inserting pins to fix the rotating shaft and the square sleeve, the square sleeve comprises a main board, the main board and the chain wheel are arranged in parallel, the shaft holes are formed in the main board, extended side plates are arranged on three sides of the main board, the side plates are perpendicular to the main board, and a protruding portion is arranged at the bottom of each side plate; a slotted hole is formed in the chain wheel at a position corresponding to the protruding part, the protruding part can penetrate through the slotted hole and extend out of the surface of the chain wheel, and the bottom of the side plate is abutted against the surface of the chain wheel; the convex part extends out of the surface part of the chain wheel for embossing deformation so as to fix the square sleeve and the chain wheel.
Furthermore, the square sleeve is made of a rigid plate or an alloy plate through cutting and bending.
Further, the lateral plate includes a short lateral plate of two long lateral plates, and the short lateral plate is located between two long lateral plates and perpendicular to it, is provided with two bellyings on every long lateral plate, and the short lateral plate is provided with a bellyings.
The utility model has the advantages that the structure is simple, the tooth disc can be embossed at the back of the tooth disc through the tooth disc slotting, the square sleeve is provided with the convex part and the like, so that the tooth disc and the square sleeve are fixed, and the generation of welding desoldering slip is avoided; and mainboard and curb plate matched with structure can directly adopt panel mode of cutting, and manufacturing process is simple.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the middle sleeve of the present invention.
Detailed Description
The following description will specifically explain embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 and 2, the dental disc assembly of the present invention comprises a dental disc 1 and a square sleeve 2, wherein shaft holes 22 are respectively formed on the dental disc 1 and the square sleeve 2 for a rotating shaft to pass through, a pin hole 25 is further formed on the square sleeve 2 for inserting a pin to fix the rotating shaft and the square sleeve, the square sleeve comprises a main plate 21, the main plate 21 and the dental disc are arranged in parallel, the shaft holes 22 are formed on the main plate 21, extended side plates 23 are arranged on three sides of the main plate, the side plates 23 are perpendicular to the main plate, and a protruding portion 24 is arranged at the bottom of each side plate 23; a slotted hole is formed in the chain wheel 1 corresponding to the protruding portion 24, the protruding portion can penetrate through the slotted hole and extend out of the surface of the chain wheel, and the bottom of the side plate 23 abuts against the surface of the chain wheel; the convex part extends out of the surface part of the chain wheel for embossing deformation so as to fix the square sleeve and the chain wheel.
The utility model discloses simple structure, processing is convenient, has especially simplified the square sleeve structure, adopts the round steel to coldly press or hot pressing for the square sleeve among the prior art mostly, the utility model discloses well square sleeve then can adopt panel to cut the support of buckling, simple process.
Claims (3)
1. The utility model provides a chain wheel subassembly, includes chain wheel and square sleeve, all sets up the shaft hole on chain wheel and square sleeve and supplies the pivot to pass, still sets up the pin hole on the square sleeve and is used for inserting the pin and fixes its characterized in that with pivot and square sleeve: the square sleeve comprises a main plate, the main plate and the chain wheel are arranged in parallel, the shaft hole is positioned on the main plate, extended side plates are arranged on three side surfaces of the main plate, the side plates are perpendicular to the main plate, and the bottom of each side plate is provided with a protruding part; a slotted hole is formed in the chain wheel at a position corresponding to the protruding part, the protruding part can penetrate through the slotted hole and extend out of the surface of the chain wheel, and the bottom of the side plate is abutted against the surface of the chain wheel; the convex part extends out of the surface part of the chain wheel for embossing deformation so as to fix the square sleeve and the chain wheel.
2. The tray assembly of claim 1, wherein: the square sleeve is made of a rigid plate or an alloy plate through cutting and bending.
3. The dental tray assembly according to claim 1 or 2, wherein: the curb plate includes short curb plate of two long curb plates, and short curb plate is located between two long curb plates and perpendicular to it, is provided with two bellyings on every long curb plate, and short curb plate is provided with a bellyings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089414.0U CN210149492U (en) | 2019-07-12 | 2019-07-12 | Dental disc assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089414.0U CN210149492U (en) | 2019-07-12 | 2019-07-12 | Dental disc assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210149492U true CN210149492U (en) | 2020-03-17 |
Family
ID=69765901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921089414.0U Active CN210149492U (en) | 2019-07-12 | 2019-07-12 | Dental disc assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210149492U (en) |
-
2019
- 2019-07-12 CN CN201921089414.0U patent/CN210149492U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |