CN111963522A - Locking mechanism - Google Patents
Locking mechanism Download PDFInfo
- Publication number
- CN111963522A CN111963522A CN202010693889.1A CN202010693889A CN111963522A CN 111963522 A CN111963522 A CN 111963522A CN 202010693889 A CN202010693889 A CN 202010693889A CN 111963522 A CN111963522 A CN 111963522A
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- Prior art keywords
- cylinder
- inner cylinder
- protrusion
- arc
- inclined surface
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- 238000000034 method Methods 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A latching mechanism comprising: the outer wall of the inner cylinder is provided with an inner cylinder protrusion and a clamping groove; the side wall of the clamping groove, which is close to the protrusion of the inner cylinder, inclines towards the protrusion direction of the inner cylinder and is an inclined plane of the inner cylinder; the outer cylinder is sleeved outside the inner cylinder, an annular gap is formed between the outer cylinder and the inner cylinder, and the inner wall of the outer cylinder is provided with an outer cylinder protrusion; the surface of one side of the outer cylinder, which protrudes out, is inclined and is an inclined surface of the outer cylinder; the arc-shaped section is arranged between the inner cylinder and the outer cylinder and is provided with an inner inclined plane and an outer inclined plane; a moving cylinder having: in a locking state, one end of the movable cylinder extends into the annular gap to push the arc-shaped section to move towards the protruding direction of the inner cylinder; the inner inclined surface is contacted with the inner barrel inclined surface; the arc-shaped section slides along the inner cylinder inclined plane to the direction far away from the clamping groove and is clamped between the inner cylinder protrusion and the outer cylinder protrusion; in the unlocking state, the movable cylinder moves towards the direction far away from the arc-shaped section; the outer cylinder moves to enable the outer cylinder to protrude towards the protruding direction of the inner cylinder; the inclined surface of the outer cylinder is contacted with the outward inclined surface to extrude the arc-shaped section; the arc-shaped section slides towards the clamping groove along the inclined surface of the inner cylinder and is separated from the protrusion of the inner cylinder and the protrusion of the outer cylinder.
Description
Technical Field
The application belongs to the technical field of locking mechanism structural design, and particularly relates to a locking mechanism.
Background
The current drag rod adopts the jaw type locking device more, and the jaw type locking device has the following defects:
1) the occupied space is large;
2) the bearing capacity is low;
3) the unlocking is inconvenient;
due to the above-mentioned drawbacks of the pawl-type locking device, the application reliability and stability of the pawl-type locking device in the check lever are low.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
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 locking mechanism to overcome or alleviate at least one of the technical disadvantages of the known prior art.
The technical scheme of the application is as follows:
a latching mechanism comprising:
the outer wall of the inner cylinder is provided with an inner cylinder protrusion and a clamping groove; the side wall of the clamping groove, which is close to the protrusion of the inner cylinder, inclines towards the protrusion direction of the inner cylinder, and is intersected with the surface of the side of the protrusion of the inner cylinder to form an inner cylinder inclined plane;
the outer cylinder is sleeved outside the inner cylinder, an annular gap is formed between the outer cylinder and the inner cylinder, and the inner wall of the outer cylinder is provided with an outer cylinder protrusion; the surface of one side of the outer cylinder, which protrudes out, is inclined and is an inclined surface of the outer cylinder;
the arc-shaped section is arranged between the inner cylinder and the outer cylinder and is provided with an inner inclined surface and an outer inclined surface opposite to the inner inclined surface;
a moving cylinder having:
in a locking state, one end of the movable cylinder extends into the annular gap and is in contact with the arc-shaped section to push the arc-shaped section to move towards the protruding direction of the inner cylinder; the inner inclined surface is contacted with the inner barrel inclined surface; the arc-shaped section slides along the inner cylinder inclined plane to the direction far away from the clamping groove, and is clamped between the inner cylinder protrusion and the outer cylinder protrusion to limit the opposite movement of the inner cylinder protrusion and the outer cylinder protrusion;
in the unlocking state, the movable cylinder moves towards the direction far away from the arc-shaped section and is separated from the arc-shaped section; the outer cylinder moves to enable the outer cylinder to protrude towards the protruding direction of the inner cylinder; the inclined surface of the outer cylinder is contacted with the outward inclined surface to extrude the arc-shaped section; the arc-shaped section slides towards the clamping groove along the inclined surface of the inner cylinder and is separated from the protrusion of the inner cylinder and the protrusion of the outer cylinder.
According to at least one embodiment of the present application, in the above locking mechanism, the inner wall of the movable cylinder has a limit protrusion;
the movable cylinder is positioned as follows:
when the lock is in a locking state, the limiting protrusion is abutted with the inner cylinder;
when the lock is in an unlocking state, the limiting protrusion is separated from the inner cylinder.
According to at least one embodiment of the present application, in the locking mechanism, there are a plurality of card slots; each clamping groove is distributed along the circumferential direction of the inner cylinder;
the number of the arc-shaped sections is multiple; each arc-shaped section corresponds to one clamping groove;
the movable cylinder is positioned as follows:
when the movable cylinder is in a locking state, one end of the movable cylinder extends into the annular gap and is in contact with each arc-shaped section to push each arc-shaped section to move towards the protruding direction of the inner cylinder; each inner inclined surface is contacted with the corresponding inner barrel inclined surface; each arc-shaped section slides along the corresponding inner cylinder inclined surface in the direction far away from the corresponding clamping groove, and is clamped between the inner cylinder protrusion and the outer cylinder protrusion to limit the opposite movement of the inner cylinder protrusion and the outer cylinder protrusion;
in the unlocking state, the movable cylinder moves towards the direction far away from each arc-shaped section and is separated from each arc-shaped section; the outer cylinder moves to enable the outer cylinder to protrude to move towards the direction close to the protrusion of the inner cylinder; the outer cylinder inclined plane contacts with each outward inclined plane to extrude each arc section; each arc-shaped section slides towards the corresponding clamping groove along the corresponding inner cylinder inclined surface and is separated from the space between the inner cylinder protrusion and the outer cylinder protrusion.
According to at least one embodiment of the present application, in the above locking mechanism, the inner cylinder has a slope that is a cylindrical surface;
the inner inclined surface is a cylindrical surface.
According to at least one embodiment of the present application, in the above-described locking mechanism, the outer slope is a cylindrical surface;
the camber surface is a cylindrical surface.
Drawings
FIG. 1 is a schematic view of a locking mechanism provided by an embodiment of the present application in a locked state;
FIG. 2 is a schematic view of a locking mechanism provided in an embodiment of the present application in a locked open and locked state;
FIG. 3 is a schematic view of a locking mechanism provided by an embodiment of the present application in a locked open state;
FIG. 4 is a schematic view of an outer barrel of a locking mechanism provided in an embodiment of the present application;
FIG. 5 is a schematic illustration of an arc segment provided by an embodiment of the present application;
FIG. 6 is a sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic view of a cylindrical surface provided by an embodiment of the present application;
FIG. 8 is a schematic view of a conical surface provided by an embodiment of the present application;
wherein:
1-an inner cylinder; 2-outer cylinder; 3-arc section; 4-moving the cylinder.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
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 7.
A latching mechanism comprising:
the outer wall of the inner cylinder 1 is provided with an inner cylinder protrusion and a clamping groove; the side wall of the clamping groove, which is close to the protrusion of the inner cylinder, inclines towards the protrusion direction of the inner cylinder, and is intersected with the surface of the side of the protrusion of the inner cylinder to form an inner cylinder inclined plane;
the outer cylinder 2 is sleeved outside the inner cylinder 1, an annular gap is formed between the outer cylinder and the inner cylinder, and the inner wall of the outer cylinder is provided with an outer cylinder protrusion; the surface of one side of the outer cylinder, which protrudes out, is inclined and is an inclined surface of the outer cylinder;
the arc-shaped section 3 is arranged between the inner barrel 1 and the outer barrel 2 and is provided with an inner inclined surface and an outer inclined surface opposite to the inner inclined surface;
a moving cylinder 4 having:
in a locking state, one end of the movable cylinder 4 extends into the annular gap and contacts with the arc-shaped section to push the arc-shaped section 3 to move towards the protruding direction of the inner cylinder; the inner inclined surface is contacted with the inner barrel inclined surface; the arc-shaped section 3 slides along the direction of the inner cylinder inclined surface far away from the clamping groove, is clamped between the inner cylinder protrusion and the outer cylinder protrusion, and limits the opposite movement of the inner cylinder protrusion and the outer cylinder protrusion, namely limits the movement of the inner cylinder 1 and the outer cylinder 2 in the direction, and locks the inner cylinder 1 and the outer cylinder 2;
in the unlocking state, the movable cylinder 4 moves towards the direction far away from the arc-shaped section 3 and is separated from the arc-shaped section 3; the outer cylinder 2 moves to enable the outer cylinder to protrude towards the protruding direction of the inner cylinder; the inclined surface of the outer cylinder is contacted with the outward inclined surface to extrude the arc-shaped section 3; the arc-shaped section 3 slides towards the clamping groove along the inclined surface of the inner cylinder and is separated from the protrusion of the inner cylinder and the protrusion of the outer cylinder, the limitation on the opposite movement of the protrusion of the inner cylinder and the protrusion of the outer cylinder is removed, namely the limitation on the movement of the inner cylinder 1 and the outer cylinder 2 in the direction is removed, and the inner cylinder 1 and the outer cylinder 2 can move in the direction until being separated from each other.
For the locking mechanism disclosed in the above embodiments, it can be understood by those skilled in the art that an arc-shaped section 3 is provided between the inner cylinder 1 and the outer cylinder 2 of the force-bearing member of the locking mechanism to bear load, the required space is small, the arc-shaped section 3 can be arranged in a small space, when the locking mechanism is in a locking state, the moving cylinder 4 limits the arc-shaped section 3 between the protrusion of the inner cylinder and the protrusion of the outer cylinder, the load can be borne by the inward-inclined surface and the outward-inclined surface of the arc-shaped section 3, the bearing capacity is high, and the bearing is reliable; when being in the lock state of opening, remove a section of thick bamboo 4 to the direction motion of keeping away from segmental arc 3, separate with segmental arc 3, remove the restriction to segmental arc 3, segmental arc 3 slides to the draw-in groove along the inner tube inclined plane, bulge from the inner tube, deviate from between the urceolus protrusion, remove the restriction to the inner tube protrusion, the protruding motion in opposite directions of urceolus, at this in-process, can utilize the motion of simple mechanism or manual control mobile section of thick bamboo 4, the accurate control opportunity of unblanking, need not utilize hydraulic system to unblank, a whole set of hydraulic system has been saved, use cost is greatly reduced.
In some alternative embodiments, in the above locking mechanism, the inner wall of the movable cylinder 4 has a limiting protrusion;
the moving cylinder 4 is in:
when the movable cylinder is in a locking state, the limiting protrusion is abutted against the inner cylinder 1 so as to prevent the movable cylinder 4 from excessively extruding the arc-shaped section 3 to damage the arc-shaped section 3;
when the lock is in an unlocking state, the limiting protrusion is separated from the inner cylinder 1.
In some optional embodiments, in the above-mentioned locking mechanism, there are a plurality of card slots; each clamping groove is distributed along the circumferential direction of the inner cylinder 1;
the arc-shaped section 3 is provided with a plurality of arc-shaped sections; each arc-shaped section 3 corresponds to one clamping groove;
the moving cylinder 4 is in:
when the movable cylinder is in a locking state, one end of the movable cylinder 4 extends into the annular gap and contacts with each arc-shaped section to push each arc-shaped section 3 to move towards the protruding direction of the inner cylinder; each inner inclined surface is contacted with the corresponding inner barrel inclined surface; each arc-shaped section 3 slides along the corresponding inner cylinder inclined surface in the direction far away from the corresponding clamping groove, and is clamped between the inner cylinder protrusion and the outer cylinder protrusion to limit the opposite movement of the inner cylinder protrusion and the outer cylinder protrusion;
in the unlocking state, the movable cylinder 4 moves towards the direction far away from each arc-shaped section 3 and is separated from each arc-shaped section 3; the outer cylinder 2 moves to enable the outer cylinder to protrude to move towards the protruding direction of the inner cylinder; the outer cylinder inclined plane contacts with each outward inclined plane to extrude each arc section 3; each arc-shaped section 3 slides towards the corresponding clamping groove along the corresponding inner cylinder inclined surface and is separated from the part between the inner cylinder protrusion and the outer cylinder protrusion.
In some optional embodiments, in the above locking mechanism, the inner cylinder has a slope surface;
the inner inclined surface is a cylindrical surface.
In some optional embodiments, in the locking mechanism, the outer inclined surface is a cylindrical surface;
the camber surface is a cylindrical surface.
Cylindrical in the present application is referred to relative to conical, wherein,
the cylindrical surface is a surface formed by a fixed straight line and a moving line parallel to the fixed straight line in a plane, wherein the plane rotates for a circle around the fixed straight line and the moving line;
the cylindrical surface is a surface formed by a fixed straight line and a moving line which is not parallel to the fixed straight line in a plane, wherein the plane rotates for a circle around the fixed straight line and the moving line.
If the inner cylinder inclined plane, the inner inclined plane, the outer cylinder inclined plane and the outer inclined plane are designed to be conical surfaces, namely the inner cylinder inclined plane and the inner inclined plane are matched with each other, in the conversion process of the locking state and the locking state, the contact and the sliding process among the inner cylinder inclined plane and the inner inclined plane as well as the outer cylinder inclined plane and the outer inclined plane can be changed from surface contact to line contact or even point contact, so that larger local stress is generated, grooves are generated by mutual friction easily, and mutual damage is caused.
The inner cylinder inclined plane, the inner inclined plane, the outer cylinder inclined plane and the outer inclined plane are designed to be cylindrical surfaces, namely cylindrical surface matching is adopted among the inner cylinder inclined plane and the inner inclined plane and among the outer cylinder inclined plane and the outer inclined plane, in the conversion process of the locking state and the locking state, the contact and sliding processes among the inner cylinder inclined plane and the inner inclined plane and among the outer cylinder inclined plane and the outer inclined plane are translational motion, surface contact is kept, the stress level is low, the generated abrasion loss is limited, and the service life of related parts can be effectively guaranteed.
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 (5)
1. A latching mechanism, comprising:
the outer wall of the inner cylinder (1) is provided with an inner cylinder protrusion and a clamping groove; the side wall of the clamping groove, which is close to the inner cylinder protrusion, inclines towards the inner cylinder protrusion direction, intersects with the surface of one side of the inner cylinder protrusion, and is an inner cylinder inclined surface;
the outer cylinder (2) is sleeved on the outer side of the inner cylinder (1), an annular gap is formed between the outer cylinder and the inner cylinder, and the inner wall of the outer cylinder is provided with an outer cylinder protrusion; the surface of one side of the outer cylinder, which protrudes out, is inclined and is an inclined surface of the outer cylinder;
the arc-shaped section (3) is arranged between the inner cylinder (1) and the outer cylinder (2) and is provided with an inner inclined surface and an outer inclined surface opposite to the inner inclined surface;
a moving cylinder (4) having:
in a locking state, one end of the movable cylinder (4) extends into the annular gap and is in contact with the arc-shaped section to push the arc-shaped section (3) to move towards the protruding direction of the inner cylinder; the inner inclined surface is contacted with the inner barrel inclined surface; the arc-shaped section (3) slides along the direction of the inner cylinder inclined surface far away from the clamping groove, and is clamped between the inner cylinder protrusion and the outer cylinder protrusion to limit the opposite movement of the inner cylinder protrusion and the outer cylinder protrusion;
in the unlocking state, the movable cylinder (4) moves towards the direction far away from the arc-shaped section (3) and is separated from the arc-shaped section (3); the outer cylinder (2) moves to enable the outer cylinder to protrude and move towards the protruding direction of the inner cylinder; the inclined surface of the outer cylinder is in contact with the outward-inclined surface to extrude the arc-shaped section (3); the arc-shaped section (3) slides towards the clamping groove along the inner cylinder inclined plane and is separated from the inner cylinder protrusion and the outer cylinder protrusion.
2. The locking mechanism of claim 1,
the inner wall of the moving cylinder (4) is provided with a limiting protrusion;
the moving cylinder (4) is in:
when the inner cylinder is in a locking state, the limiting protrusion is abutted against the inner cylinder (1);
when the lock is in the unlocking state, the limiting protrusion is separated from the inner cylinder (1).
3. The locking mechanism of claim 1,
the number of the clamping grooves is multiple; each clamping groove is distributed along the circumferential direction of the inner cylinder (1);
a plurality of arc-shaped sections (3) are arranged; each arc-shaped section (3) corresponds to one clamping groove.
4. The locking mechanism of claim 1,
the inclined surface of the inner cylinder is a cylindrical surface;
the inner inclined surface is a cylindrical surface.
5. The locking mechanism of claim 1,
the outer inclined plane is a cylindrical surface;
the camber surface is a cylindrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693889.1A CN111963522A (en) | 2020-07-17 | 2020-07-17 | Locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693889.1A CN111963522A (en) | 2020-07-17 | 2020-07-17 | Locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111963522A true CN111963522A (en) | 2020-11-20 |
Family
ID=73360755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010693889.1A Pending CN111963522A (en) | 2020-07-17 | 2020-07-17 | Locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111963522A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH247513A (en) * | 1943-05-04 | 1947-03-15 | Bbc Brown Boveri & Cie | Snap ring with particularly great radial flexibility. |
| US4225263A (en) * | 1977-03-31 | 1980-09-30 | Skf Nova Ab | Locking device |
| US5667332A (en) * | 1995-01-25 | 1997-09-16 | Aktiebolaget Electrolux | Locking device for a drive shaft |
| CN109578410A (en) * | 2018-11-29 | 2019-04-05 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of chocking construction |
| CN109854601A (en) * | 2018-11-29 | 2019-06-07 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of ring type locking mechanism |
-
2020
- 2020-07-17 CN CN202010693889.1A patent/CN111963522A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH247513A (en) * | 1943-05-04 | 1947-03-15 | Bbc Brown Boveri & Cie | Snap ring with particularly great radial flexibility. |
| US4225263A (en) * | 1977-03-31 | 1980-09-30 | Skf Nova Ab | Locking device |
| US5667332A (en) * | 1995-01-25 | 1997-09-16 | Aktiebolaget Electrolux | Locking device for a drive shaft |
| CN109578410A (en) * | 2018-11-29 | 2019-04-05 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of chocking construction |
| CN109854601A (en) * | 2018-11-29 | 2019-06-07 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of ring type locking mechanism |
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Application publication date: 20201120 |
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