CN114046307A - Quick locking and unlocking device - Google Patents
Quick locking and unlocking device Download PDFInfo
- Publication number
- CN114046307A CN114046307A CN202111189253.4A CN202111189253A CN114046307A CN 114046307 A CN114046307 A CN 114046307A CN 202111189253 A CN202111189253 A CN 202111189253A CN 114046307 A CN114046307 A CN 114046307A
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- CN
- China
- Prior art keywords
- quick
- spring assembly
- fixed rod
- limiting
- spring
- 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.)
- Pending
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- 230000009471 action Effects 0.000 claims abstract description 5
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process 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
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/06—Releasable fastening devices with snap-action
- F16B21/08—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part
- F16B21/082—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part the stud, pin or spigot having two resilient parts on its opposite ends in order to connect two elements
Abstract
The invention relates to a quick locking and unlocking device, which comprises a fixed rod, a plurality of moving parts and a spring assembly, wherein the fixed rod is fixedly connected with the moving parts; the moving piece can move along the length direction of the fixed rod; the fixed rod is provided with a plurality of limiting grooves; the moving piece is provided with a through hole which can cover the limiting groove; the spring assembly is positioned in the limiting groove; when the moving piece moves along the fixed rod and passes through the spring assembly, the positioning module of the spring assembly extends out of the through hole and locks the moving piece; when the moving piece is locked, the moving piece can move along the fixed rod under the action of external force to press the spring component positioning module into the limiting groove, so that unlocking is realized. According to the invention, the locking of the sleeve is quickly realized through the locking stop pin of the spring assembly, connecting parts such as screws are not needed, and the operation is convenient. The unlocking of the sleeve can be realized quickly by pulling up the sleeve by applying external force, the position of the sleeve is changed, connecting parts such as screws do not need to be disassembled, and the position of the sleeve is changed quickly.
Description
Technical Field
The invention relates to the technical field of connecting parts, in particular to a quick locking and unlocking device.
Background
In daily life, the fixation between two parts is usually achieved by using screws or bolts for locking. When screw locking is used, it is necessary to fasten the screw with a tool such as a screwdriver at the time of fixing and to detach the screw with a tool such as a screwdriver at the time of detaching.
However, for the connection occasions which have no strict requirement on locking force and need to be frequently disassembled and replaced, the screw connection is adopted, and the working efficiency of the connecting part when the working position is replaced is greatly reduced.
How to provide a brand-new connecting structure, which is applied to the connecting occasion of frequently disassembling and replacing positions, is a technical problem to be solved urgently in the field.
Disclosure of Invention
Aiming at the problem that the existing screw connection is frequently disassembled and assembled and the working efficiency is seriously influenced in the prior art, the invention provides the quick locking and quick unlocking device.
In order to achieve the purpose, the invention provides a quick locking and unlocking device, which comprises a fixed rod, a plurality of moving parts and a spring assembly, wherein the fixed rod is fixedly connected with the moving parts;
the moving piece can move along the length direction of the fixed rod;
the fixed rod is provided with a plurality of limiting grooves;
the moving piece is provided with a through hole which can cover the limiting groove;
the spring assembly is positioned in the limiting groove;
when the moving piece moves along the fixed rod and passes through the spring assembly, the positioning module of the spring assembly extends out of the through hole and locks the moving piece; when the moving piece is locked, the moving piece can move along the fixed rod under the action of external force to press the spring assembly positioning module into the limiting groove, so that unlocking is realized.
Further, the spring assembly comprises a spring and a positioning module which are connected; the positioning module comprises a limiting block, a positioning stop pin and a limiting pin; and a chamfer is arranged on one side of the limiting block, a positioning stop pin and a limiting pin are arranged on the other side of the limiting block, and the distance between the positioning stop pin and the limiting pin is greater than the thickness of the moving member.
Furthermore, the limiting groove comprises a circular groove and a rectangular groove communicated with the circular groove; the diameter of circular recess with the diameter of stopper matches, the size of rectangular channel with the size matching of spacer pin avoids the spring distortion.
Furthermore, the through hole is oblong, and the positioning module can move in the through hole along the length direction of the through hole, so that the moving element moves out of the positioning stop pin and the limiting pin.
Further, the long circle short diameter is larger than the diameter of the circular groove by 1-2mm, and the difference of the long circle long diameter b minus the short diameter a is larger than the height h of the positioning stop pin, namely b-a is larger than h. Furthermore, the movable piece can move along the chamfer by the chamfer of the limiting block, the limiting block is pressed in the limiting groove, the movable piece is unlocked and passes through the spring assembly, tan alpha is larger than mu, alpha is a chamfer angle, and mu is a friction coefficient between the movable piece and the limiting block.
Further, the angle of the chamfer is greater than 54.5 °.
Furthermore, one end of the spring is fixed at the bottom of the limiting groove, and the other end of the spring is fixed at the bottom of the limiting block.
Further, the spring is a compression spring.
Further, the moving member is a sleeve sleeved on the fixed rod.
The technical scheme of the invention has the following beneficial technical effects:
(1) according to the invention, the locking of the sleeve is quickly realized through the locking stop pin of the spring assembly, connecting parts such as screws are not needed, and the operation is convenient.
(2) According to the invention, the sleeve can be quickly unlocked and the position of the sleeve can be changed by pulling up the sleeve by applying external force, so that connecting parts such as screws and the like do not need to be disassembled, and the position of the sleeve can be quickly changed.
Drawings
FIG. 1 is a front elevational view, in full section, of the novel quick lock and quick unlock apparatus of the present invention, illustrating the assembled relationship;
FIG. 2 is a front view of a fixing rod of the quick lock and quick unlock device of the present invention, illustrating a limiting groove structure;
FIG. 3 is a front view of the spring assembly of the quick lock and quick unlock device of the present invention, illustrating the spring assembly configuration;
FIG. 4 is a front view of the quick lock and quick unlock device sleeve of the present invention, illustrating the sleeve construction;
FIG. 5 is a schematic view of the chamfer angle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The invention provides a quick locking and unlocking device, which comprises a fixed rod, a plurality of moving parts and a spring assembly, wherein the fixed rod is fixedly connected with the moving parts; the moving piece can move along the length direction of the fixed rod; the fixed rod is provided with a plurality of limiting grooves; the moving piece is provided with a through hole which can cover the limiting groove; the spring assembly is positioned in the limiting groove; when the moving piece moves along the fixed rod and passes through the spring assembly, the positioning module of the spring assembly extends out of the through hole and locks the moving piece; when the moving piece is locked, the moving piece can move along the fixed rod under the action of external force to press the spring assembly positioning module into the limiting groove, so that unlocking is realized.
As shown in fig. 1, in an embodiment of a novel quick-locking and quick-unlocking device, the moving member is a sleeve, and the main body of the quick-locking and quick-unlocking device is composed of a fixed rod 1, a spring assembly 2 and a sleeve 3. The spring component 2 and the fixed rod 1 are of an integrated structure, and the spring component can be prevented from being separated from the fixed rod. The fixed rod 1 is used for supporting the sleeve 3 to slide; the spring assembly 2 is used for quickly locking and unlocking the sleeve 3; the sleeve 3 serves as a moving member for the exchange position for rapid movement of the exchange position.
In this embodiment, as shown in fig. 2, a fixing rod 1 is provided with a limiting groove 1-1, and the limiting groove 1-1 includes a circular groove and a rectangular groove communicated with the circular groove; the diameter of circular recess with the diameter of stopper matches, the size of rectangular channel with the size matching of spacer pin avoids the spring distortion. Can realize spacing to spring unit 2, prevent the rotation of spring unit 2 among the operation process.
As shown in fig. 3, the spring assembly is composed of a spring 2-1 and a positioning module, the positioning module body is a limiting block 2-2, the upper part of the positioning module body is provided with a positioning stop pin 2-3 and a limiting pin 2-4, the lower part of the positioning module body is provided with a chamfer angle, so that the sleeve 3 can move along the chamfer angle, the limiting block 2-2 is pressed into the limiting groove 1-1, and the sleeve 3 is unlocked and moves upwards through the spring assembly 2. A quick change position of the sleeve 3 is achieved. One end of the spring 2-1 is fixed at the bottom of the limiting groove 1-1, and the other end is fixed to the limiting block 2-2.
As shown in figure 4, a vertical long round hole 3-1 is formed in the sleeve 3, the length of the vertical long round hole 3-1 is larger than that of the limiting groove 1-1, and the positioning module can move in the long round hole 3-1 along the length direction, so that the sleeve 3 can move out of the positioning stop pin 2-3 and the limiting pin 2-4. The sleeve can be moved quickly.
The short diameter of the long round hole 3-1 is slightly larger than the diameter of the limiting block 2-2, so that the spring assembly can smoothly enter and exit the long round hole; the long diameter of the long round hole is 26mm, the short diameter of the long round hole is 20mm, the radius r of the limiting block is 19mm, the height h of the positioning stop pin is 5.5mm,
b-2r>h (1)
a-2r>0 (2)
from this (1) to (2) it follows: b-a > h, namely when the difference value of the long radius and the short radius of the long round hole is larger than the height of the positioning stop pin, the positioning stop pin can not interfere with the upper end face of the long round hole when the sleeve moves upwards.
As can be seen from fig. 5, in order to make the sleeve move upward and smoothly press the spring assembly, the value of the chamfer α should satisfy the following condition: f.sin alpha > μ F.cos alpha, i.e., μ < tan alpha. According to the dynamic friction coefficient of the material, the maximum dynamic friction coefficient of aluminum in the common material is 1.4, and the value of tan54.5 degrees is about 1.4, so that the spring assembly can be extruded into the limiting groove by the sleeve only when the chamfer angle is larger than 54.5 degrees.
The operation method comprises the following steps: the structure of a plurality of identical spring assemblies 2 can be arranged in the axial direction of the fixed rod 1, when quick unlocking is needed, a sleeve 3 is pulled upwards by hand, the upper part of a long circular hole of the sleeve 3 is separated from the positioning stop pin 2-3, the spring 2-1 is a compressed spring and cannot retract, when the lower part of the sleeve 3 is in contact with a chamfer at the lower part of the spring assembly 2, the sleeve 3 extrudes the spring assembly, so that the limit pin 2-4 of the spring assembly 2 retracts into the fixed rod 1 along the limit groove 1-1 to realize a quick unlocking position, and the limit pin 2-4 is arranged on the spring assembly 2, so when the sleeve 3 extrudes the spring assembly 2, the spring assembly 2 cannot axially rotate, and the spring 2-1 cannot radially distort. When the sleeve 3 moves upwards and meets the next spring assembly 2, the upper edge of the sleeve 3 contacts the chamfer of the spring assembly 2 to extrude the spring assembly 2 and retract the spring assembly 2, the sleeve 3 continues to move upwards, the spring assembly 2 pops up when the sleeve 3 moves to the position of the long round hole 3-1 of the sleeve 3, and the upper part of the long round hole 3-1 of the sleeve 3 falls into the positioning stop pin 2-3 to realize quick locking.
In summary, the present invention relates to a quick locking and unlocking device, which includes a fixing rod, a plurality of moving members and a spring assembly; the moving piece can move along the length direction of the fixed rod; the fixed rod is provided with a plurality of limiting grooves; the moving piece is provided with a through hole which can cover the limiting groove; the spring assembly is positioned in the limiting groove; when the moving piece moves along the fixed rod and passes through the spring assembly, the positioning module of the spring assembly extends out of the through hole and locks the moving piece; when the moving piece is locked, the moving piece can move along the fixed rod under the action of external force to press the spring component positioning module into the limiting groove, so that unlocking is realized. According to the invention, the locking of the sleeve is quickly realized through the locking stop pin of the spring assembly, connecting parts such as screws are not needed, and the operation is convenient. The unlocking of the sleeve can be realized quickly by pulling up the sleeve by applying external force, the position of the sleeve is changed, connecting parts such as screws do not need to be disassembled, and the position of the sleeve is changed quickly.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A quick locking and unlocking device is characterized by comprising a fixed rod, a plurality of moving parts and a spring assembly;
the moving piece can move along the length direction of the fixed rod;
the fixed rod is provided with a plurality of limiting grooves;
the moving piece is provided with a through hole which can cover the limiting groove;
the spring assembly is positioned in the limiting groove;
when the moving piece moves along the fixed rod and passes through the spring assembly, the positioning module of the spring assembly extends out of the through hole and locks the moving piece; when the moving piece is locked, the moving piece can move along the fixed rod under the action of external force to press the spring assembly positioning module into the limiting groove, so that unlocking is realized.
2. The quick to lock and quick to unlock device of claim 1 wherein the spring assembly comprises a spring and a positioning module connected; the positioning module comprises a limiting block, a positioning stop pin and a limiting pin; and a chamfer is arranged on one side of the limiting block, a positioning stop pin and a limiting pin are arranged on the other side of the limiting block, and the distance between the positioning stop pin and the limiting pin is greater than the thickness of the moving member.
3. The quick-lock and quick-unlock device according to claim 2 wherein the limiting groove comprises a circular groove and a rectangular groove communicating with the circular groove; the diameter of circular recess with the diameter of stopper matches, the size of rectangular channel with the size matching of spacer pin avoids the spring distortion.
4. The quick-locking and quick-unlocking device according to claim 3, wherein the through hole is oblong, and the positioning module can move in the through hole along the length direction of the through hole, so that the moving member can move out of the positioning stop pin and the limiting pin.
5. The quick-lock and quick-release device according to claim 4, wherein the oblong short diameter dimension is 1-2mm larger than the diameter of the circular groove, and the difference between the oblong long diameter dimension b and the short diameter dimension a is larger than the height h of the positioning catch pin, i.e. b-a > h.
6. The quick lock and quick unlock device of claim 4 wherein said chamfer of said stopper enables said moving member to move along said chamfer, pressing said stopper into said stopper groove to unlock said moving member and pass said spring assembly, tan α > μ, where α is the angle of the chamfer and μ is the coefficient of friction between said moving member and stopper.
7. Quick-lock and quick-release device according to claim 6, characterised in that the angle of the chamfer is greater than 54.5 °.
8. The quick-lock and quick-unlock device of claim 2 wherein one end of the spring is fixed to the bottom of the stopper slot and the other end is fixed to the bottom of the stopper.
9. The quick lock and quick unlock device of claim 8 wherein said spring is a compression spring.
10. The quick-locking and quick-unlocking device according to claim 1 or 2, wherein said moving member is a sleeve fitted over said fixed rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111189253.4A CN114046307A (en) | 2021-10-12 | 2021-10-12 | Quick locking and unlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111189253.4A CN114046307A (en) | 2021-10-12 | 2021-10-12 | Quick locking and unlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114046307A true CN114046307A (en) | 2022-02-15 |
Family
ID=80204464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111189253.4A Pending CN114046307A (en) | 2021-10-12 | 2021-10-12 | Quick locking and unlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114046307A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02117870U (en) * | 1989-03-10 | 1990-09-20 | ||
| TW388709B (en) * | 1997-09-24 | 2000-05-01 | Nakanishi Inc | Connector for connecting two members |
| CN110446574A (en) * | 2016-12-23 | 2019-11-12 | 米瑞卡佳有限公司 | Rapid tool change |
| CN113137412A (en) * | 2020-01-20 | 2021-07-20 | 陈庆元 | Extending structure reaches from rapping bar, lighting fixture, photographic tripod |
-
2021
- 2021-10-12 CN CN202111189253.4A patent/CN114046307A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02117870U (en) * | 1989-03-10 | 1990-09-20 | ||
| TW388709B (en) * | 1997-09-24 | 2000-05-01 | Nakanishi Inc | Connector for connecting two members |
| CN110446574A (en) * | 2016-12-23 | 2019-11-12 | 米瑞卡佳有限公司 | Rapid tool change |
| CN113137412A (en) * | 2020-01-20 | 2021-07-20 | 陈庆元 | Extending structure reaches from rapping bar, lighting fixture, photographic tripod |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20220215 |