CN111664168A - Pin shaft locking structure - Google Patents
Pin shaft locking structure Download PDFInfo
- Publication number
- CN111664168A CN111664168A CN202010506403.9A CN202010506403A CN111664168A CN 111664168 A CN111664168 A CN 111664168A CN 202010506403 A CN202010506403 A CN 202010506403A CN 111664168 A CN111664168 A CN 111664168A
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- Prior art keywords
- locking
- pin shaft
- hole
- pin
- bent
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
This application belongs to round pin axle locking design technical field, concretely relates to round pin axle locking structure, include: the top end of the pin shaft is provided with a locking hole; one end of the locking strip is a locking end, and the other end of the locking strip is a bending end; the bent end can be bent with respect to the locking end, so that the locking bar has: and (3) locking state: the locking end is inserted into the locking hole; the bending end is bent towards the direction close to the locking end so as to at least partially surround the top end of the pin shaft, so that the locking end is limited to be separated from the locking hole; an unlocking state: the bending end is bent towards the direction far away from the locking end so as to be far away from the top end of the pin shaft, and therefore the locking end can be separated from the locking hole.
Description
Technical Field
The application belongs to the technical field of pin shaft locking design, and particularly relates to a pin shaft locking structure.
Background
The pin shaft is a common standard fastener, can be fixedly connected statically, can also move relative to a connected piece, and is mainly used for the hinged part of two parts to form hinged connection.
At present, the pin shaft is mostly locked through a split pin, as shown in fig. 1, and the locking of the pin shaft in this way has the following defects:
1) the split pin is easy to bend excessively during assembly, so that the tail part has initial cracks and even breaks;
2) the pin shaft has a rotating motion rule in work, so that the tail of the cotter pin bears friction bending moment, and the cotter pin is easy to wear;
3) the split pin is a consumable part during assembling and disassembling, cannot be reused, and has high cost.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present patent application.
Disclosure of Invention
It is an object of the present application to provide a pin locking arrangement that overcomes or mitigates at least one of the technical disadvantages known to exist.
The technical scheme of the application is as follows:
a locking structure for a pin shaft, comprising:
the top end of the pin shaft is provided with a locking hole;
one end of the locking strip is a locking end, and the other end of the locking strip is a bending end; the bent end can be bent with respect to the locking end, so that the locking bar has:
and (3) locking state: the locking end is inserted into the locking hole; the bending end is bent towards the direction close to the locking end so as to at least partially surround the top end of the pin shaft, so that the locking end is limited to be separated from the locking hole;
an unlocking state: the bending end is bent towards the direction far away from the locking end so as to be far away from the top end of the pin shaft, and therefore the locking end can be separated from the locking hole.
According to at least one embodiment of this application, among the above-mentioned round pin axle locking structure, still include:
the gasket is sleeved at the top end of the pin shaft and is provided with a through hole;
the locking bar is positioned as follows:
when in a locking state, the locking end penetrates through the through hole; the bent end at least partially surrounds the periphery of the washer, so that the locking end is limited from being separated from the through hole;
when the locking device is in an unlocking state, the bending end is far away from the gasket, so that the locking end can be separated from the through hole.
According to at least one embodiment of the present application, in the pin locking structure, the washer has a connection hole;
the locking bar is positioned as follows:
when in a locking state, the locking end is inserted into the connecting hole and is limited to be separated from the connecting hole;
and in the unlocking state, the locking end can be disengaged from the connecting hole.
According to at least one embodiment of the present application, in the pin locking structure, the washer has a groove on an outer circumference thereof; the groove extends along the circumferential direction of the gasket;
the locking bar is positioned as follows:
when in a locking state, the bending end is bent along the extending direction of the groove so as to be at least partially sunk into the groove;
when the lock is unlocked, the bending end part is separated from the groove.
According to at least one embodiment of the present application, in the above-mentioned pin locking structure, when the locking strip is in the locked state, the end of the bent end is exposed out of the groove.
According to at least one embodiment of the present application, in the above-mentioned locking structure for a pin shaft, the outer wall of the top end of the pin shaft is provided with a plurality of axially extending limiting grooves; one end of each limiting groove extends to the end face of the top end of the pin shaft;
the inner side of the gasket is provided with a plurality of limiting bulges; each limiting protrusion is correspondingly clamped into one limiting groove.
Drawings
FIG. 1 is a schematic view of a prior art pin and its cotter pin mating;
fig. 2 is a schematic view of a locking structure of a pin shaft when a locking bar is in a locking state according to an embodiment of the present application;
FIG. 3 is a schematic view of the locking bar of FIG. 2;
fig. 4 is a schematic view of a locking structure of a pin shaft when a locking bar is in an unlocked state according to an embodiment of the present application;
FIG. 5 is a schematic view of the locking bar of FIG. 4;
FIG. 6 is a schematic view of a gasket provided by an embodiment of the present application;
wherein:
1-a pin shaft; 2-locking the bar; 3-gasket.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The use of the terms "comprising" or "including" and the like in the description of the present application is intended to indicate that the element or item preceding the term covers the element or item listed after the term and its equivalents, without excluding other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1 to 5.
A locking structure for a pin shaft, comprising:
the top end of the pin shaft 1 is provided with a locking hole;
one end of the locking strip 2 is a locking end, and the other end is a bending end; the bending end can be bent with respect to the locking end, so that the locking bar 2 has:
and (3) locking state: the locking end is inserted into the locking hole; the bending end is bent towards the direction close to the locking end so as to at least partially surround the top end of the pin shaft 1, so that the locking end is limited to be separated from the locking hole;
an unlocking state: the bending end is bent towards the direction far away from the locking end to be far away from the top end of the pin shaft 1, so that the locking end can be disengaged from the locking hole.
For the pin shaft locking structure disclosed in the above embodiment, it can be understood by those skilled in the art that the locking strip 2 can lock the pin shaft 1 when in a locking state, and the bent end of the locking strip 2 is bent towards a direction close to the locking end and surrounds the top end of the pin shaft 1, so that the pin shaft locking structure is not prone to fracture due to excessive bending; when the locking strip 2 is in the unlocking state, the locking end can be drawn out from the locking hole to unlock the pin shaft 1, at the moment, the locking strip 2 is not deformed due to an overlarge structure, so that serious damage cannot occur, the locking strip can be repeatedly used, and the using cost is relatively low.
For the pin shaft locking structure disclosed in the above embodiment, it can be understood by those skilled in the art that when the locking bar 2 is in the locking state, the bending end is bent to the direction close to the locking end and surrounds more than four parts of the top end of the pin shaft 1, so that the locking end can be effectively limited from being disengaged from the locking hole, the locking of the pin shaft 1 is realized, the bending end is bent to the direction away from the locking end, so as to be away from the top end of the pin shaft 1, and the bending end surrounds less than four parts of the top end of the pin shaft 1, so that the locking bar 2 can be in the unlocking state, and at this time, the locking end can be pulled out from the locking hole, and the.
In some optional embodiments, the pin locking structure further includes:
the gasket 3 is sleeved at the top end of the pin shaft 1 and is provided with a through hole;
the locking bar 2 is in:
when in a locking state, the locking end penetrates through the through hole; the bent end at least partially surrounds the periphery of the washer 3, thereby limiting the locking end from coming out of the through hole;
when the locking device is in an unlocking state, the bending end is far away from the gasket 3, so that the locking end can be separated from the through hole.
For the pin shaft locking structure disclosed in the above embodiment, as can be understood by those skilled in the art, the washer 3 is arranged at the top end of the pin shaft 1, so that on one hand, when the locking bar 2 is in a locking state, the bent end is bent along the periphery of the washer 3, and has a larger bending radius, thereby avoiding damage caused by excessive bending; on the other hand, the gasket 3 can provide a larger contact surface area with the connected piece of the pin shaft 1, so that the pin shaft 1 can keep stable when rotating relative to the connected piece, and the transitional contact between the bent end and the connected piece of the pin shaft 1 can be avoided, thereby avoiding the damage caused by the excessive abrasion of the bent end by the connected piece of the pin shaft 1.
In some optional embodiments, in the pin locking structure, the washer 3 has a connecting hole;
the locking bar 2 is in:
when in a locking state, the locking end is inserted into the connecting hole and is limited to be separated from the connecting hole;
and in the unlocking state, the locking end can be disengaged from the connecting hole.
In some alternative embodiments, in the pin locking structure, the washer 3 has a groove on the outer periphery; the groove extends along the circumferential direction of the gasket 3;
the locking bar 2 is in:
when in a locking state, the bending end is bent along the extending direction of the groove so as to be at least partially sunk into the groove;
when the lock is unlocked, the bending end part is separated from the groove.
For the pin locking structure disclosed in the above embodiment, it can be understood by those skilled in the art that when the locking strip 2 is in the locking state, the bent end is partially sunk into the groove, so that the bent end can be effectively protected from being damaged by the severe abrasion of the connecting piece of the pin 1.
In some alternative embodiments, in the pin locking structure, when the locking strip 2 is in the locking state, the end of the bent end is exposed out of the groove.
For the pin shaft locking structure disclosed in the above embodiment, those skilled in the art can understand that when the locking bar 2 is in the locking state, the end of the bent end is exposed out of the groove, so that a portion for applying force to the bent end can be provided, and force can be conveniently applied to the bent end, so that the locking bar 2 can be easily transited to the unlocking state, and the locking of the pin shaft 1 is released.
In some optional embodiments, in the pin locking structure, the outer wall of the top end of the pin 1 is provided with a plurality of axially extending limiting grooves; one end of each limiting groove extends to the end face of the top end of the pin shaft 1;
the inner side of the gasket 3 is provided with a plurality of limiting bulges; each limiting protrusion is correspondingly clamped into one limiting groove, so that the gasket 3 is prevented from rotating relative to the pin shaft 1, and the gasket 3 can be prevented from rotating relative to the pin shaft 1 to damage the locking bar 2.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (6)
1. The utility model provides a round pin axle locking structure which characterized in that includes:
the top end of the pin shaft (1) is provided with a locking hole;
one end of the locking strip (2) is a locking end, and the other end of the locking strip is a bending end; the bending end can be bent relative to the locking end, so that the locking strip (2) has:
and (3) locking state: the locking end is inserted into the locking hole; the bending end is bent towards the direction close to the locking end so as to at least partially surround the top end of the pin shaft (1), so that the locking end is limited to be separated from the locking hole;
an unlocking state: the bending end is bent towards the direction far away from the locking end so as to be far away from the top end of the pin shaft (1), so that the locking end can be separated from the locking hole.
2. The pin locking structure according to claim 1,
further comprising:
the gasket (3) is sleeved at the top end of the pin shaft (1) and is provided with a through hole;
the locking bar (2) is positioned:
in the locking state, the locking end penetrates through the through hole; the bent end at least partially surrounds the periphery of the washer (3) so as to limit the locking end from falling out of the through hole;
when the locking device is in the unlocking state, the bending end is far away from the gasket (3), so that the locking end can be separated from the through hole.
3. The pin locking structure according to claim 2,
the gasket (3) is provided with a connecting hole;
the locking bar (2) is positioned:
when the locking state is realized, the locking end is inserted into the connecting hole and is limited to be separated from the connecting hole;
and in the unlocking state, the locking end can be separated from the connecting hole.
4. The pin locking structure according to claim 2,
the periphery of the gasket (3) is provided with a groove; the groove extends along the circumferential direction of the gasket (3);
the locking bar (2) is positioned:
when the locking state is realized, the bending end is bent along the extending direction of the groove so as to be at least partially sunk into the groove;
and when the lock is in the unlocking state, the bending end part is separated from the groove.
5. The pin locking structure according to claim 4,
when the locking bar (2) is in the locking state, the end part of the bent end is exposed out of the groove.
6. The pin locking structure according to claim 1,
the outer wall of the top end of the pin shaft (1) is provided with a plurality of limiting grooves extending along the axial direction; one end of each limiting groove extends to the end face of the top end of the pin shaft (1);
the inner side of the gasket (3) is provided with a plurality of limiting bulges; each limiting protrusion is correspondingly clamped into one limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506403.9A CN111664168A (en) | 2020-06-05 | 2020-06-05 | Pin shaft locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506403.9A CN111664168A (en) | 2020-06-05 | 2020-06-05 | Pin shaft locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111664168A true CN111664168A (en) | 2020-09-15 |
Family
ID=72386832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010506403.9A Pending CN111664168A (en) | 2020-06-05 | 2020-06-05 | Pin shaft locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111664168A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697415A (en) * | 2020-12-22 | 2021-04-23 | 中国航发沈阳发动机研究所 | Quick-release switching structure |
| CN115789055A (en) * | 2022-11-09 | 2023-03-14 | 中船第九设计研究院工程有限公司 | Lockpin structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR487623A (en) * | 1917-08-14 | 1918-07-17 | Leon Pelloux | Pin |
| US4592689A (en) * | 1984-05-25 | 1986-06-03 | Leitzke Rue S | Ring spring cotter |
| JP2001200820A (en) * | 1999-11-11 | 2001-07-27 | Tokai Spring Seisakusho:Kk | Coming-out prevention pin |
| CN201794877U (en) * | 2010-08-19 | 2011-04-13 | 宝山钢铁股份有限公司 | Elastic self-lock pin |
| CN102182744A (en) * | 2011-05-06 | 2011-09-14 | 力帆实业(集团)股份有限公司 | Anti-loosing device for nut |
| CN202078929U (en) * | 2011-05-19 | 2011-12-21 | 江苏牧羊集团有限公司 | Fixing structure for pin shaft of grinder |
| CN103939442A (en) * | 2014-05-12 | 2014-07-23 | 安徽江淮汽车股份有限公司 | Lock pin and connecting mechanism |
-
2020
- 2020-06-05 CN CN202010506403.9A patent/CN111664168A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR487623A (en) * | 1917-08-14 | 1918-07-17 | Leon Pelloux | Pin |
| US4592689A (en) * | 1984-05-25 | 1986-06-03 | Leitzke Rue S | Ring spring cotter |
| JP2001200820A (en) * | 1999-11-11 | 2001-07-27 | Tokai Spring Seisakusho:Kk | Coming-out prevention pin |
| CN201794877U (en) * | 2010-08-19 | 2011-04-13 | 宝山钢铁股份有限公司 | Elastic self-lock pin |
| CN102182744A (en) * | 2011-05-06 | 2011-09-14 | 力帆实业(集团)股份有限公司 | Anti-loosing device for nut |
| CN202078929U (en) * | 2011-05-19 | 2011-12-21 | 江苏牧羊集团有限公司 | Fixing structure for pin shaft of grinder |
| CN103939442A (en) * | 2014-05-12 | 2014-07-23 | 安徽江淮汽车股份有限公司 | Lock pin and connecting mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697415A (en) * | 2020-12-22 | 2021-04-23 | 中国航发沈阳发动机研究所 | Quick-release switching structure |
| CN112697415B (en) * | 2020-12-22 | 2023-03-14 | 中国航发沈阳发动机研究所 | Quick-release switching structure |
| CN115789055A (en) * | 2022-11-09 | 2023-03-14 | 中船第九设计研究院工程有限公司 | Lockpin structure |
| CN115789055B (en) * | 2022-11-09 | 2025-12-16 | 中船第九设计研究院工程有限公司 | Lock pin structure |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200915 |
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