CN109093565B - Installation mistake-proofing eccentric spring mechanism - Google Patents
Installation mistake-proofing eccentric spring mechanism Download PDFInfo
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- CN109093565B CN109093565B CN201810946811.9A CN201810946811A CN109093565B CN 109093565 B CN109093565 B CN 109093565B CN 201810946811 A CN201810946811 A CN 201810946811A CN 109093565 B CN109093565 B CN 109093565B
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- spring leg
- spring
- insertion hole
- eccentric
- leg insertion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
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Abstract
The invention provides a mechanism for installing a mistake-proofing eccentric spring, which comprises: the eccentric spring, the eccentric wheel, the shell and the cover plate; the eccentric wheel is provided with a first spring leg insertion hole, and a first conical surface structure is arranged on the periphery clinging to the first spring leg insertion hole; and a second spring leg insertion hole is formed in the shell, and a second conical surface structure is arranged on the periphery close to the second spring leg insertion hole. Because the first conical surface structure is arranged around the first spring leg insertion hole and the second conical surface structure is arranged around the second spring leg insertion hole, when the spring leg of the eccentric spring is not correctly inserted into the spring leg insertion hole, the spring leg of the eccentric spring is pushed away from the spring leg insertion hole by the conical surface structure in the mounting process of the cover plate, so that the mounting position and the state of the eccentric spring are obviously different, the mounting error of the eccentric spring is easily recognized, and the mounting error can be timely corrected.
Description
Technical Field
The invention relates to the technical field of mechanical structure design, in particular to a mechanism for installing a mistake-proofing eccentric spring.
Background
The eccentric spring is used in a large amount in mechanical design, and has the advantages of small volume, reliable use, no need of external energy to maintain the state of the eccentric spring and the like. But typically the over-center spring needs to be pre-tensioned during installation of the mechanism to provide initial retention of the mechanical structure. During this process the spring may be incorrectly installed at the design location with a time difference difficult to identify for the specific implementation.
Disclosure of Invention
The invention aims to provide an installation error-proof eccentric spring mechanism to solve the problem that the existing eccentric spring is difficult to identify when being installed in an error.
In order to achieve the above object, the present invention provides a mounting error-proofing over center spring mechanism, comprising: the eccentric spring, the eccentric wheel, the shell and the cover plate; the eccentric wheel is provided with a first spring leg insertion hole, and a first conical surface structure is arranged on the periphery clinging to the first spring leg insertion hole; and a second spring leg insertion hole is formed in the shell, and a second conical surface structure is arranged on the periphery close to the second spring leg insertion hole.
Optionally, the over-center spring has a first spring leg and a second spring leg; when the first spring leg is inserted into the first spring leg insertion hole, if the first spring leg is not correctly inserted into the first spring leg insertion hole, the first spring leg is in contact with the first conical surface structure; when the second spring leg is inserted into the second spring leg insertion hole, if the second spring leg is not correctly inserted into the second spring leg insertion hole, the second spring leg contacts the second tapered structure.
Optionally, if the first spring leg is in contact with the first conical surface structure, the first spring leg is pushed away from the first spring leg insertion hole by the first conical surface structure during the process of mounting the cover plate.
Optionally, if the second spring leg is in contact with the second tapered structure, the second spring leg is pushed away from the second spring leg insertion hole by the second tapered structure during the process of installing the cover plate.
Optionally, the first spring leg and the second spring leg point in the same direction.
Optionally, the first spring leg insertion hole and the second spring leg insertion hole are blind holes.
Optionally, the eccentric wheel is provided with an installation through hole, and the shell is provided with an installation shaft; the mounting through hole is connected with the mounting shaft so that the eccentric wheel is connected with the shell.
In summary, the error-proof eccentric spring mechanism provided by the present invention comprises: the eccentric spring, the eccentric wheel, the shell and the cover plate; the eccentric wheel is provided with a first spring leg insertion hole, and a first conical surface structure is arranged on the periphery clinging to the first spring leg insertion hole; and a second spring leg insertion hole is formed in the shell, and a second conical surface structure is arranged on the periphery close to the second spring leg insertion hole. Because the first conical surface structure is arranged around the first spring leg insertion hole and the second conical surface structure is arranged around the second spring leg insertion hole, when the spring leg of the eccentric spring is not correctly inserted into the spring leg insertion hole, the spring leg of the eccentric spring is pushed away from the spring leg insertion hole by the conical surface structure in the mounting process of the cover plate, so that the mounting position and the state of the eccentric spring are obviously different, the mounting error of the eccentric spring is easily recognized, and the mounting error can be timely corrected.
Drawings
Fig. 1 is a schematic diagram of a disassembled structure of a mechanism for installing a mistake-proofing eccentric spring according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an eccentric spring according to an embodiment of the present invention after installation;
FIG. 3 is a cross-sectional view of an over-center spring with a spring leg inserted in error according to an embodiment of the present invention;
the spring assembly comprises a spring body, a first spring leg, a second spring leg, a first eccentric spring, a second eccentric spring, a first spring leg insertion hole, a first conical surface structure, a second conical surface structure, a mounting through hole, a shell body, a second spring leg insertion hole, a second conical surface structure, a mounting shaft and a cover plate, wherein the spring body comprises 1-an eccentric spring, 1 a-the first spring leg, 1 b-the second spring leg, 2 a-the first conical surface structure, 2 c-the mounting through hole, 3-the shell.
Detailed Description
The following describes in more detail embodiments of the present invention with reference to the schematic drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
As described in the background, over-center springs are typically pre-tensioned during installation of the mechanism to provide initial retention of the mechanical structure. During this process the spring may be incorrectly installed at the design location with a time difference difficult to identify for the specific implementation.
Therefore, in the technical field of mechanical structure design, in order to solve the problems, the invention provides a mechanism for installing a mistake-proofing eccentric spring.
Fig. 1 is a schematic structural diagram of a mechanism for installing a mistake-proofing eccentric spring according to an embodiment of the present invention.
As shown in fig. 1, the installation error-proof over-center spring mechanism includes: the eccentric spring 1, the eccentric wheel 2, the shell 3 and the cover plate 4; a first spring leg insertion hole 2a is formed in the eccentric wheel 2, and a first conical surface structure 2b is arranged on the periphery close to the first spring leg insertion hole 2 a; the shell 3 is provided with a second spring leg insertion hole 3a, and a second conical surface structure 3b is arranged on the periphery clinging to the second spring leg insertion hole 3 a.
Further, with continued reference to fig. 1, the over-center spring 1 has a first spring leg 1a and a second spring leg 1 b; specifically, referring to fig. 2 and 3, when the eccentric spring 1 is installed between the eccentric wheel 2 and the housing 3, the first spring leg 1a is installed on the eccentric wheel 2 through the first spring leg insertion hole 2a, and the second spring leg 1b is installed on the housing through the second spring leg insertion hole 3 a. When the first spring leg 1a is inserted into the first spring leg insertion hole 2a, if the first spring leg 1a is not correctly inserted into the first spring leg insertion hole 1a, the first spring leg 1a will contact with the first tapered surface structure 2 b; when the second spring leg 1b is inserted into the second spring leg insertion hole 3a, if the second spring leg 1b is not correctly inserted into the second spring leg insertion hole 3a, the second spring leg 1b contacts the second tapered structure 3 b.
Further, with continued reference to fig. 1 to 3, when the first spring leg 1a is not properly inserted into the first spring leg insertion hole 2a, the first spring leg 1a contacts the first tapered structure 2b, and then the first spring leg 1a is pushed away from the first spring leg insertion hole 2a by the first tapered structure 2b during the subsequent installation of the cover plate 4. When the second spring leg 1b is not correctly inserted into the second spring leg insertion hole 3a, the second spring leg 1b contacts the second tapered structure 3b, and then the second spring leg 1b is pushed away from the second spring leg insertion hole 3a by the second tapered structure 3b during the subsequent installation of the cover plate 4. In the above case, due to the design of the first conical surface structure and the second conical surface structure, the insertion error of the first spring leg or the second spring leg may cause the installation position and the state of the eccentric spring to be significantly different, so that the installation error of the eccentric spring is easily recognized, and the installation error can be corrected in time.
Further, the first spring leg insertion hole and the second spring leg insertion hole are blind holes.
Further, referring to fig. 1, an installation through hole 2c is formed in the eccentric wheel 2, and an installation shaft 3c is formed in the housing 3; the mounting through hole 2c is connected with the mounting shaft 3c to connect the eccentric wheel 2 with the housing 3.
In one embodiment, the over-center spring may be a torsion spring, and the first spring leg and the second spring leg point in the same direction. The installation process of the error-proof eccentric spring mechanism is as follows: firstly, the eccentric wheel is installed on the shell through the installation through hole and the installation shaft, specifically, the installation through hole is nested on the installation shaft, and the eccentric wheel can rotate around the installation shaft. After the eccentric wheel is installed, an eccentric spring is installed between the eccentric wheel and the shell, specifically, a first spring leg of the eccentric spring needs to be inserted into a first spring leg insertion hole on the eccentric wheel, and a second spring leg of the eccentric spring needs to be inserted into a second spring leg insertion hole on the shell. And after the eccentric spring is installed, installing the cover plate. Specifically, in the process of installing the cover plate, whether the installation position and the state of the eccentric spring are obviously different from the standard or not is observed, whether the first spring leg and/or the second spring leg are inserted incorrectly or not is judged, and if the first spring leg and/or the second spring leg are inserted incorrectly, the first spring leg and/or the second spring leg are inserted again until the installation position and the state of the eccentric spring are the same as the standard or not.
In summary, the error-proof eccentric spring mechanism provided by the present invention comprises: the eccentric spring, the eccentric wheel, the shell and the cover plate; the eccentric wheel is provided with a first spring leg insertion hole, and a first conical surface structure is arranged on the periphery clinging to the first spring leg insertion hole; and a second spring leg insertion hole is formed in the shell, and a second conical surface structure is arranged on the periphery close to the second spring leg insertion hole. Because the first conical surface structure is arranged around the first spring leg insertion hole and the second conical surface structure is arranged around the second spring leg insertion hole, when the spring leg of the eccentric spring is not correctly inserted into the spring leg insertion hole, the spring leg of the eccentric spring is pushed away from the spring leg insertion hole by the conical surface structure in the mounting process of the cover plate, so that the mounting position and the mounting state of the eccentric spring are obviously different, the mounting error of the eccentric spring is easily recognized, and the mounting error can be timely corrected.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A mistake-proof installation over-center spring mechanism, comprising: the eccentric spring, the eccentric wheel, the shell and the cover plate; the eccentric wheel is provided with a first spring leg insertion hole, and a first conical surface structure is arranged on the periphery clinging to the first spring leg insertion hole; a second spring leg insertion hole is formed in the shell, a second conical surface structure is arranged on the periphery close to the second spring leg insertion hole, and the eccentric spring is provided with a first spring leg and a second spring leg; when the first spring leg is inserted into the first spring leg insertion hole, if the first spring leg is not correctly inserted into the first spring leg insertion hole, the first spring leg is in contact with the first conical surface structure; when the second spring leg is inserted into the second spring leg insertion hole, if the second spring leg is not correctly inserted into the second spring leg insertion hole, the second spring leg may contact the second tapered surface structure, and the first spring leg insertion hole and the second spring leg insertion hole are blind holes.
2. The error resilient over-center spring mechanism of claim 1, wherein if said first spring leg is in contact with said first tapered structure, said first spring leg is pushed away from said first spring leg insertion hole by said first tapered structure during installation of said cover plate.
3. The error resilient over-center spring mechanism of claim 1, wherein if said second spring leg is in contact with said second tapered structure, said second spring leg is pushed away from said second spring leg insertion hole by said second tapered structure during installation of said cover plate.
4. The error resilient over-center spring mechanism of claim 1, wherein said first spring leg and said second spring leg point in the same direction.
5. The error resilient biasing spring mechanism of claim 1, wherein said biasing wheel has a mounting aperture therethrough, and said housing has a mounting shaft; the mounting through hole is connected with the mounting shaft so that the eccentric wheel is connected with the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946811.9A CN109093565B (en) | 2018-08-20 | 2018-08-20 | Installation mistake-proofing eccentric spring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946811.9A CN109093565B (en) | 2018-08-20 | 2018-08-20 | Installation mistake-proofing eccentric spring mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109093565A CN109093565A (en) | 2018-12-28 |
| CN109093565B true CN109093565B (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810946811.9A Active CN109093565B (en) | 2018-08-20 | 2018-08-20 | Installation mistake-proofing eccentric spring mechanism |
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| CN (1) | CN109093565B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202010015029U1 (en) * | 2010-11-05 | 2012-04-02 | Faiveley Transport Witten Gmbh | Mounting bush for mounting disc springs, in particular on wheel brake discs for rail vehicles |
| CN202317789U (en) * | 2011-11-22 | 2012-07-11 | 东风汽车零部件(集团)有限公司 | Mistake-proofing seam allowance clamping fixture for eccentric machining of piston excircle |
| CN203747157U (en) * | 2014-04-03 | 2014-07-30 | 北京安达维尔民用航空技术有限公司 | Plugging apparatus free of mistaken plugging and loosened plugging |
| CN204295604U (en) * | 2014-12-08 | 2015-04-29 | 重庆市银钢一通科技有限公司 | A kind of error prevention device |
| CN108953442A (en) * | 2018-08-15 | 2018-12-07 | 上海恩坦华汽车门系统有限公司 | Over-center spring mechanism |
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2018
- 2018-08-20 CN CN201810946811.9A patent/CN109093565B/en active Active
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| Publication number | Publication date |
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| CN109093565A (en) | 2018-12-28 |
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