CN204327693U - A kind of pivot pin - Google Patents
A kind of pivot pin Download PDFInfo
- Publication number
- CN204327693U CN204327693U CN201420710612.5U CN201420710612U CN204327693U CN 204327693 U CN204327693 U CN 204327693U CN 201420710612 U CN201420710612 U CN 201420710612U CN 204327693 U CN204327693 U CN 204327693U
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- arc
- section
- stabilizing member
- supercharging
- radian
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Abstract
The utility model relates to a kind of pivot pin, comprise the pedestal connected successively, rod member and connecting head, described rod member comprises interconnective first stabilizing member and the second stabilizing member, the diameter of described first stabilizing member and the diameter ratio of the second stabilizing member are 1.1-1.2, described pedestal is connected with the first stabilizing member, and the joint of pedestal and the first stabilizing member is for stablize arc, the radian of this stable arc is π/8-π/6, described first stabilizing member is connected by supercharging section with between the second stabilizing member, this supercharging section comprises interconnective first supercharging section and the second supercharging section, the outer wall of described first supercharging section and the second supercharging section is all curved, the outer wall arc outwardly convex of described first supercharging section is convex arc, the outer wall arc of described second supercharging section caves inward as concave arc, described convex arc and concave arc connect and compose " S " type, the utility model is reasonable, simply, structural strength is large.
Description
Technical field
The utility model relates to a kind of pivot pin.
Background technique
Resistance to compression and the antitorque ability of the rod member of current pivot pin are very low, easy stress deformation, and the connecting head of pivot pin and the join strength of the body of rod low, after both connect, be subject to external force when affecting, the link between connecting head and the body of rod there will be the situation of stiffness cracks.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of rational in infrastructure, simple, the pivot pin that structural strength is large.
For achieving the above object, the utility model provides following technological scheme:
A kind of pivot pin, it is characterized in that: comprise the pedestal connected successively, rod member and connecting head, described rod member comprises interconnective first stabilizing member and the second stabilizing member, the diameter of described first stabilizing member and the diameter ratio of the second stabilizing member are 1.1-1.2, described pedestal is connected with the first stabilizing member, and the joint of pedestal and the first stabilizing member is for stablize arc, the radian of this stable arc is π/8-π/6, described first stabilizing member is connected by supercharging section with between the second stabilizing member, this supercharging section comprises interconnective first supercharging section and the second supercharging section, the outer wall of described first supercharging section and the second supercharging section is all curved, the outer wall arc outwardly convex of described first supercharging section is convex arc, the outer wall arc of described second supercharging section caves inward as concave arc, described convex arc and concave arc connect and compose " S " type, the radian of described convex arc is π/7-π/5, the radian of described concave arc is equal with the radian of convex arc, described second stabilizing member is connected by changeover portion with between connecting head, described changeover portion comprises base segment and extension, the curved shape of described base segment outer wall, and base segment caves inward, the radian of described base segment is π/8-π/6, described connecting head comprises the interconnective section of turning round and positioning section, the described section of turning round is provided with strengthening segment with the joint of positioning section, described strengthening segment takes the form of inclined plane, the diameter of the described section of turning round and the diameter ratio of extension are 1.1-1.3.
Further, the bottom of described pedestal is provided with supporting section, is configured with and strengthens angle between described supporting section and pedestal, and the angle at this reinforcement angle is 45 °.
Further, described positioning section offers keyway, be provided with stress arc between the both sides cell wall of this keyway and bottom land, the radian of this stress arc is π/8-π/6.
Contrast the deficiencies in the prior art, the beneficial effect that the technical solution of the utility model is brought:
1. the pivot pin of the application comprises the pedestal, rod member and the connecting head that connect successively.Rod member comprises interconnective first stabilizing member and the second stabilizing member, and when the diameter of the first stabilizing member and the diameter ratio of the second stabilizing member are 1.1-1.2, the impact toughness ability of antitorque and measuring body ability and the first stabilizing member and second stabilizing member of rod member is best.Described pedestal is connected with the first stabilizing member, and the joint of pedestal and the first stabilizing member is for stablize arc, when the radian of stable arc is π/8-π/6, and the internal force best results that the join strength of the first stabilizing member and pedestal and stable arc produce.
2. be connected by supercharging section between the first stabilizing member with the second stabilizing member, this supercharging section comprises interconnective first supercharging section and the second supercharging section, the outer wall of described first supercharging section and the second supercharging section is all curved, the outer wall arc outwardly convex of described first supercharging section is convex arc, the outer wall arc of described second supercharging section caves inward as concave arc, described convex arc and concave arc connect and compose " S " type, because convex arc is contrary with the arcuate directions of concave arc, when the first stabilizing member and the second stabilizing member are subject to external force collision, convex arc and concave arc can produce the contrary reaction force in two bursts of directions, these two strands of reaction forces can produce very strong internal stress, substantially increase the impact toughness between the first stabilizing member and the second stabilizing member, strengthen the join strength of the first stabilizing member and the second stabilizing member, and then improve structure stability and the structural strength of rod member.The radian of concave arc is equal with the radian of convex arc, and when the radian of convex arc is π/7-π/5, the join strength of the internal force effect that convex arc and concave arc produce and the first stabilizing member and the second stabilizing member is best.
3. the second stabilizing member is connected by changeover portion with between connecting head, described changeover portion comprises base segment and extension, the curved shape of described base segment outer wall, and base segment caves inward, when the radian of base segment is π/8-π/6, the internal force best results that the join strength of changeover portion and the second stabilizing member and base segment produce, when changeover portion, to be subject to external force larger, the internal force that base segment produces is also larger, ensure that the connective stability of changeover portion and the second stabilizing member, there will not be the situation of stiffness cracks.
4. connecting head comprises the interconnective section of turning round and positioning section, the described section of turning round is provided with strengthening segment with the joint of positioning section, described strengthening segment takes the form of inclined plane, when the diameter of the section of turning round and the diameter ratio of extension are 1.1-1.3, the connecting head the most laborsaving and section of turning round and extension antitorque and measuring body ability when being connected with component is best.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is G portion of the present utility model enlarged view.
Fig. 3 is the sectional view of positioning section of the present utility model.
Embodiment
As Figure 1-Figure 2:
A kind of pivot pin, comprise the pedestal 1 connected successively, rod member 2 and connecting head 3, described rod member 2 comprises interconnective first stabilizing member 21 and the second stabilizing member 22, the diameter of described first stabilizing member 21 and the diameter ratio of the second stabilizing member 22 are 1.1-1.2, described pedestal 1 is connected with the first stabilizing member 21, and the joint of pedestal 1 and the first stabilizing member 21 is for stablize arc 10, the radian of this stable arc 10 is π/8-π/6, described first stabilizing member 21 is connected by supercharging section 4 with between the second stabilizing member 22, this supercharging section 4 comprises interconnective first supercharging section 41 and the second supercharging section 42, the outer wall of described first supercharging section 41 and the second supercharging section 42 is all curved, the outer wall arc outwardly convex of described first supercharging section 41 is convex arc 410, the outer wall arc of described second supercharging section 42 caves inward as concave arc 420, described convex arc 410 connects and composes " S " type with concave arc 420, the radian of described convex arc 410 is π/7-π/5, the radian of described concave arc 420 is equal with the radian of convex arc 410, described second stabilizing member 22 is connected by changeover portion 5 with between connecting head 3, described changeover portion 5 comprises base segment 51 and extension 52, the curved shape of described base segment 51 outer wall, and base segment 51 caves inward, the radian of described base segment 51 is π/8-π/6, described connecting head 3 comprises the interconnective section of turning round 31 and positioning section 32, the described section of turning round 31 is provided with strengthening segment 33 with the joint of positioning section 32, described strengthening segment 33 takes the form of inclined plane, the diameter of the described section of turning round 31 and the diameter ratio of extension 52 are 1.1-1.3.
The bottom of pedestal 1 is provided with supporting section 11, is configured with and strengthens angle 12 between described supporting section 11 and pedestal 1, and the angle at this reinforcement angle 12 is 45 °.Supporting section 11 substantially increases the structural strength of pedestal 1, and strengthens the join strength that supporting section 11 and pedestal 1 can be improved in angle 12, improves the structure stability of pedestal 1 further.
As shown in Figure 3: positioning section 32 offers keyway 320, be provided with stress arc 3200 between the both sides cell wall of this keyway 320 and bottom land, the radian of this stress arc 3200 is π/8-π/6.
If when the radian of stress arc 3200 is greater than π/8-π/6, add technology difficulty, cost improves, and does not meet the market demand.If when the radian of stress arc 3200 is less than π/8-π/6, keyway 320 is with key connection procedure, and ability that is anti-extrusion, impact resistance reduces greatly.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, those skilled in the art carries out common change and replaces should being included in protection domain of the present utility model within the scope of technical solutions of the utility model.
Claims (3)
1. a pivot pin, it is characterized in that: comprise the pedestal connected successively, rod member and connecting head, described rod member comprises interconnective first stabilizing member and the second stabilizing member, the diameter of described first stabilizing member and the diameter ratio of the second stabilizing member are 1.1-1.2, described pedestal is connected with the first stabilizing member, and the joint of pedestal and the first stabilizing member is for stablize arc, the radian of this stable arc is π/8-π/6, described first stabilizing member is connected by supercharging section with between the second stabilizing member, this supercharging section comprises interconnective first supercharging section and the second supercharging section, the outer wall of described first supercharging section and the second supercharging section is all curved, the outer wall arc outwardly convex of described first supercharging section is convex arc, the outer wall arc of described second supercharging section caves inward as concave arc, described convex arc and concave arc connect and compose " S " type, the radian of described convex arc is π/7-π/5, the radian of described concave arc is equal with the radian of convex arc, described second stabilizing member is connected by changeover portion with between connecting head, described changeover portion comprises base segment and extension, the curved shape of described base segment outer wall, and base segment caves inward, the radian of described base segment is π/8-π/6, described connecting head comprises the interconnective section of turning round and positioning section, the described section of turning round is provided with strengthening segment with the joint of positioning section, described strengthening segment takes the form of inclined plane, the diameter of the described section of turning round and the diameter ratio of extension are 1.1-1.3.
2. a kind of pivot pin according to claim 1, is characterized in that: the bottom of described pedestal is provided with supporting section, is configured with and strengthens angle between described supporting section and pedestal, and the angle at this reinforcement angle is 45 °.
3. a kind of pivot pin according to claim 1, is characterized in that: described positioning section offers keyway, is provided with stress arc between the both sides cell wall of this keyway and bottom land, and the radian of this stress arc is π/8-π/6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710612.5U CN204327693U (en) | 2014-11-24 | 2014-11-24 | A kind of pivot pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710612.5U CN204327693U (en) | 2014-11-24 | 2014-11-24 | A kind of pivot pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327693U true CN204327693U (en) | 2015-05-13 |
Family
ID=53164060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420710612.5U Expired - Fee Related CN204327693U (en) | 2014-11-24 | 2014-11-24 | A kind of pivot pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215838A (en) * | 2021-12-09 | 2022-03-22 | 重庆博奥镁铝金属制造有限公司 | Magnesium alloy die casting hole direct-insertion type fastening positioning pin |
-
2014
- 2014-11-24 CN CN201420710612.5U patent/CN204327693U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215838A (en) * | 2021-12-09 | 2022-03-22 | 重庆博奥镁铝金属制造有限公司 | Magnesium alloy die casting hole direct-insertion type fastening positioning pin |
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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: 20150513 Termination date: 20201124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |