CN111258370A - Knob anti-cracking structure of automobile air conditioner controller - Google Patents
Knob anti-cracking structure of automobile air conditioner controller Download PDFInfo
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- CN111258370A CN111258370A CN201911417897.7A CN201911417897A CN111258370A CN 111258370 A CN111258370 A CN 111258370A CN 201911417897 A CN201911417897 A CN 201911417897A CN 111258370 A CN111258370 A CN 111258370A
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- China
- Prior art keywords
- knob
- shaft hole
- air conditioner
- conditioner controller
- hole seat
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
- G05G1/10—Details, e.g. of discs, knobs, wheels or handles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention relates to the field of vehicle structures, in particular to a knob anti-cracking structure of an automobile air conditioner controller. The novel rotary shaft comprises a rotary knob, a rotary shaft and a fixing sleeve, wherein the fixing sleeve is sleeved on the rotary shaft, a shaft hole seat extending out is arranged on the rotary knob, a shaft hole matched with the rotary shaft is arranged on the shaft hole seat, the rotary shaft forms interference fit with the shaft hole through the fixing sleeve, and a protective sleeve is sleeved on the outer ring of the shaft hole seat. The knob can be effectively prevented from cracking, and the use stability and the service life of the knob are guaranteed.
Description
Technical Field
The invention relates to the field of vehicle structures, in particular to a knob anti-cracking structure of an automobile air conditioner controller.
Background
The knob part structure on the vehicle air conditioner controller is generally by the knob, fixed cover, this three part of pivot is constituteed, fixed sheathe in elastic construction, the pivot increases the power of pulling out through elastic construction's elasticity and knob interference fit after the assembly, prevent that the knob from droing, because the knob assembly is through the elastic construction interference fit on fixed cover, so in fact the assembly back knob can receive the outside tension effect of fixed cover always, the knob can produce the fracture phenomenon with pivot complex part under this tensile permanent effect, cause the knob to become invalid, influence knob life.
Disclosure of Invention
Based on the defect that the part of the knob, which is matched with the rotating shaft, is easy to crack when the knob on the automobile air conditioner controller in the prior art is subjected to the outward tension of the fixed sleeve for a long time, the invention provides the knob anti-cracking structure of the automobile air conditioner controller, which effectively prevents the knob from cracking, and ensures the use stability and the service life of the knob.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a cracking-proof structure of knob of vehicle air conditioner controller, includes knob, pivot and fixed cover, and fixed cover sleeve is established in the pivot, is equipped with the axle hole seat that stretches out on the knob, be equipped with on the axle hole seat with pivot cooperation shaft hole, the pivot forms interference fit through fixed cover and shaft hole, the cover is equipped with the protective sheath on the outer lane of axle hole seat. Through increasing a protective sheath outside the shaft hole seat, offset partly because the tension that knob and fixed cover interference fit produced through the internal tension that the protective sheath produced to the shaft hole seat, reduced the knob because the too big outside elastic deformation that produces of tension of fixed cover to prevent the fracture of knob, and the required occupation space of shaft protection cover is little, and is with low costs.
Preferably, the protective sleeve is made of an elastic material and provides inward tightening force for the shaft hole seat. The protective sleeve has elasticity, so that continuous tightening force is generated on the shaft hole seat, external tension generated by interference fit of the knob and the fixed sleeve is offset, and the knob is prevented from cracking.
Preferably, the rotating shaft is provided with a matching part in a semi-cylinder shape, the shape of the shaft hole is matched with that of the matching part, the fixing sleeve is tightly attached to the matching part, and the matching part is inserted into the shaft hole. The cooperation of pivot and shaft hole has the effect of splining, and fixed cover then guarantees the interference fit in pivot and shaft hole, reduces the wearing and tearing of pivot and shaft hole seat, prevents the knob fracture.
Preferably, the fixing sleeve is provided with elastic concave points. The pulling force is increased by utilizing the elastic deformation capacity of the elastic concave points, and the knob is prevented from falling off.
Preferably, the rotating shaft is provided with a matching part in a semi-cylinder shape, the matching part comprises an arc-shaped side wall matched with the inner surface of the shaft hole and a longitudinal side wall connected with two ends of the arc-shaped side wall, the shaft hole is in a cylindrical shape, a positioning part extending towards the inside of the shaft hole is arranged on the shaft hole seat, the end part of the positioning part abuts against the longitudinal side wall, the shaft hole is in rotating fit with the matching part, a positioning surface is arranged on the positioning part, and when the knob rotates until the positioning surface abuts against the longitudinal side wall, the rotating shaft rotates; the locating surface has the holding chamber between with vertical lateral wall, is equipped with the gas cell between cooperation portion and the shaft hole, the gas cell constitutes fixed cover, the gas cell is including being arranged in the segmental arc between arc lateral wall and the shaft hole inside wall and being arranged in the extrusion section in the holding chamber, when the knob rotates, the extrusion section pressurized makes cooperation portion and shaft hole formation interference fit in order to aerify in the segmental arc. The rotatable certain angle of the relative cooperation portion of shaft hole seat, when rotatory knob like this, the volume in extrusion holding chamber, the volume of extrusion section diminishes promptly, inflate in to the segmental arc this moment, segmental arc volume grow props tight cooperation portion and shaft hole, cooperation portion is in interference fit with the shaft hole this moment, then the locating surface supports the vertical lateral wall of top, the pivot rotates along with the knob, when the knob rotates like this, cooperation portion is in the interference fit state with shaft hole seat, when the knob is motionless, cooperation portion is in the relative cooperation state that relaxs with shaft hole seat, the cooperation portion that significantly reduces and shaft hole seat interference fit's time, reduce the effect time of external tension, prevent shaft hole seat fracture.
Preferably, the positioning part is triangular, two side walls of the positioning part form the positioning surface, and the top of the positioning part abuts against the axis of the matching part. The top of location portion is the threadiness, can regard as the pivot to use, and two lateral walls then form the holding chamber of fan-shaped region with vertical lateral wall, and the rotation of knob thereupon, the volume in holding chamber is compressed, and the air in the extrusion section gets into the segmental arc to prop up tight cooperation portion and shaft hole seat.
Preferably, the holding cavities are symmetrically distributed on the left side and the right side of the positioning portion, two ends of the arc-shaped section are respectively provided with an extrusion section, the extrusion sections are in one-to-one correspondence with the holding cavities, and the extrusion sections are located in the corresponding holding cavities. The knob rotates clockwise and counterclockwise to compress the extruding section, so that the air in the extruding section enters the arc section to support the matching part and the shaft hole seat tightly.
The invention has the beneficial effects that: the protective sleeve is additionally arranged outside the shaft hole seat, and the internal tension generated by the protective sleeve on the shaft hole seat offsets part of the tension generated by interference fit of the knob and the fixed sleeve, so that the elastic deformation of the knob due to overlarge tension of the fixed sleeve is reduced, the knob is prevented from cracking, and the occupied space required by the shaft protective sleeve is small and the cost is low; the rotatable certain angle of the relative cooperation portion of shaft hole seat, when rotatory knob like this, the volume in extrusion holding chamber, the volume of extrusion section diminishes promptly, inflate in to the segmental arc this moment, segmental arc volume grow props tight cooperation portion and shaft hole, cooperation portion is in interference fit with the shaft hole this moment, then the locating surface supports the vertical lateral wall of top, the pivot rotates along with the knob, when the knob rotates like this, cooperation portion is in the interference fit state with shaft hole seat, when the knob is motionless, cooperation portion is in the relative cooperation state that relaxs with shaft hole seat, the cooperation portion that significantly reduces and shaft hole seat interference fit's time, reduce the effect time of external tension, prevent shaft hole seat fracture.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the following drawings without inventive labor.
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a sectional view of example 1 of the present invention;
fig. 3 is a sectional view of embodiment 2 of the present invention.
Reference numerals: the rotary knob comprises a rotary knob 1, a shaft hole seat 11, a positioning part 12, a positioning surface 13, a rotating shaft 2, a fixing sleeve 3, an arc-shaped section 31, an extrusion section 32, a protective sleeve 4, a matching part 5, an arc-shaped side wall 51 and a longitudinal side wall 52.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
A knob crack prevention structure of an air conditioner controller for a vehicle according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Example 1: as shown in figures 1 and 2 of the drawings,
the utility model provides a structure that ftractures is prevented to vehicle air conditioner controller's knob, includes knob 1, pivot 2 and fixed cover 3, and fixed cover sleeve is established in the pivot, is equipped with the axle hole seat 11 that stretches out on the knob, be equipped with on the axle hole seat with pivot cooperation shaft hole, the pivot forms interference fit through fixed cover and shaft hole, the cover is equipped with protective sheath 4 on the outer lane of axle hole seat. Through increasing a protective sheath outside the axle hole seat, the protective sheath adopts elastic material to make, and the protective sheath provides inward tightening force to the axle hole seat, and the protective sheath has elasticity to the axle hole seat produces the tightening force that lasts, in order to offset partly because the knob and the outer tension that fixed cover interference fit produced, prevent the fracture of knob, and the required occupation space of axle protective sheath is little, and is with low costs.
Specifically, the pivot has the cooperation portion 5 that is the halfcylinder form, and the shape in shaft hole matches with the cooperation portion, and fixed cover is hugged closely on the cooperation portion, and cooperation portion inserts and establishes in the shaft hole, and pivot and shaft hole cooperation have the effect of splining, and fixed cover then guarantees the interference fit in pivot and shaft hole, reduces the wearing and tearing of pivot and shaft hole seat, prevents the knob fracture. The fixing sleeve is provided with elastic concave points, and the pulling-out force is increased by utilizing the elastic deformation capacity of the elastic concave points to prevent the knob from falling off.
Example 2: based on the structure of the above embodiment, the rotating shaft has a matching part in the shape of a semi-cylinder, the matching part includes an arc-shaped side wall 51 matched with the inner surface of the shaft hole and a longitudinal side wall 52 connected with two ends of the arc-shaped side wall, the shaft hole is in the shape of a cylinder, a positioning part 12 extending into the shaft hole is arranged on the shaft hole seat, the end part of the positioning part abuts against the longitudinal side wall, the shaft hole is in rotating fit with the matching part, a positioning surface 13 is arranged on the positioning part, and when the knob rotates until the positioning surface abuts against the longitudinal side wall, the; the positioning device is characterized in that a containing cavity 14 is formed between the positioning surface and the longitudinal side wall, an inflatable bag is arranged between the matching part and the shaft hole and forms a fixed sleeve, the inflatable bag comprises an arc-shaped section 31 and an extrusion section 32, the arc-shaped section 31 is located between the arc-shaped side wall and the inner side wall of the shaft hole, the extrusion section is located in the containing cavity, and when the knob rotates, the extrusion section is pressed to inflate the arc-shaped section, so that the matching part and the shaft hole form interference fit. The rotatable certain angle of the relative cooperation portion of shaft hole seat, when rotatory knob like this, the volume in extrusion holding chamber, the volume of extrusion section diminishes promptly, inflate in to the segmental arc this moment, segmental arc volume grow props tight cooperation portion and shaft hole, cooperation portion is in interference fit with the shaft hole this moment, then the locating surface supports the vertical lateral wall of top, the pivot rotates along with the knob, when the knob rotates like this, cooperation portion is in the interference fit state with shaft hole seat, when the knob is motionless, cooperation portion is in the relative cooperation state that relaxs with shaft hole seat, the cooperation portion that significantly reduces and shaft hole seat interference fit's time, reduce the effect time of external tension, prevent shaft hole seat fracture.
Specifically, location portion is the triangle form, and the both sides wall of location portion constitutes the locating surface, and the top of location portion supports the axis of cooperation portion, and the top of location portion is the threadiness, can regard as the pivot to use, and two lateral walls then form fan-shaped regional holding chamber with vertical lateral wall, and the rotation of knob thereupon, the volume in holding chamber is compressed, and the air in the extrusion section gets into the segmental arc to prop up cooperation portion and shaft hole seat tightly.
The holding chamber symmetric distribution respectively is equipped with an extrusion section in the both ends of arc section in the left and right sides of location portion, extrusion section and holding chamber one-to-one, and the extrusion section is located the holding chamber that corresponds, and knob corotation reversal all has the effect of compression extrusion section like this to make the air admission arc section in the extrusion section, in order to prop up tight cooperation portion and shaft hole seat.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a cracking-proof structure of knob of vehicle air conditioner controller, includes knob, pivot and fixed cover, and fixed cover sleeve is established in the pivot, is equipped with the axle hole seat that stretches out on the knob, be equipped with on the axle hole seat with pivot cooperation shaft hole, the pivot forms interference fit, characterized by through fixed cover and shaft hole, the cover is equipped with the protective sheath on the outer lane of axle hole seat.
2. The knob crack prevention structure of an air conditioner controller for a vehicle as claimed in claim 1, wherein the protective sleeve is made of an elastic material, and provides an inward tightening force to the shaft hole seat.
3. The knob crack prevention structure of an air conditioner controller for automobiles as claimed in claim 1 or 2, wherein the rotation shaft has a fitting portion in a semi-cylindrical shape, the shape of the shaft hole matches with the fitting portion, the fixing sleeve is closely attached to the fitting portion, and the fitting portion is inserted into the shaft hole.
4. The knob crack prevention structure of an auto air conditioner controller as claimed in claim 3, wherein the fixing sleeve is provided with elastic concave points.
5. The knob crack prevention structure of an air conditioner controller of an automobile as claimed in claim 1, wherein the rotation shaft has a fitting portion in a semi-cylindrical shape, the fitting portion includes an arc-shaped sidewall matching an inner surface of the shaft hole and a longitudinal sidewall connecting both ends of the arc-shaped sidewall, the shaft hole has a cylindrical shape, the shaft hole seat is provided with a positioning portion extending into the shaft hole, an end portion of the positioning portion abuts against the longitudinal sidewall, the shaft hole is rotatably fitted with the fitting portion, the positioning portion is provided with a positioning surface, and the rotation shaft rotates along with the knob when the positioning surface abuts against the longitudinal sidewall; the locating surface has the holding chamber between with vertical lateral wall, is equipped with the gas cell between cooperation portion and the shaft hole, the gas cell constitutes fixed cover, the gas cell is including being arranged in the segmental arc between arc lateral wall and the shaft hole inside wall and being arranged in the extrusion section in the holding chamber, when the knob rotates, the extrusion section pressurized makes cooperation portion and shaft hole formation interference fit in order to aerify in the segmental arc.
6. The knob crack prevention structure of an auto air conditioner controller as claimed in claim 5, wherein the positioning portion is triangular, two side walls of the positioning portion constitute the positioning surface, and a top of the positioning portion abuts against an axis of the fitting portion.
7. The knob crack prevention structure of an auto air conditioner controller as claimed in claim 6, wherein the receiving cavities are symmetrically distributed at the left and right sides of the positioning portion, two ends of the arc-shaped segment are respectively provided with a squeezing segment, the squeezing segments correspond to the receiving cavities one by one, and the squeezing segments are located in the corresponding receiving cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911417897.7A CN111258370B (en) | 2019-12-31 | 2019-12-31 | Knob anti-cracking structure of automobile air conditioner controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911417897.7A CN111258370B (en) | 2019-12-31 | 2019-12-31 | Knob anti-cracking structure of automobile air conditioner controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111258370A true CN111258370A (en) | 2020-06-09 |
| CN111258370B CN111258370B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911417897.7A Active CN111258370B (en) | 2019-12-31 | 2019-12-31 | Knob anti-cracking structure of automobile air conditioner controller |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002079893A1 (en) * | 2001-03-28 | 2002-10-10 | Arcelik A.S. | Domestic appliance knob |
| CN202838085U (en) * | 2012-09-06 | 2013-03-27 | 海能达通信股份有限公司 | Knob cap fixing structure |
| CN104777874A (en) * | 2014-01-10 | 2015-07-15 | 上海德尔格医疗器械有限公司 | End cover assembly and mounting method thereof |
| CN204515584U (en) * | 2015-03-18 | 2015-07-29 | 无锡小天鹅股份有限公司 | The knob assembly of washing facility and there is its washing facility |
| CN211150392U (en) * | 2019-12-31 | 2020-07-31 | 杭州广安汽车电器有限公司 | Knob anti-cracking structure of automobile air conditioner controller |
-
2019
- 2019-12-31 CN CN201911417897.7A patent/CN111258370B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002079893A1 (en) * | 2001-03-28 | 2002-10-10 | Arcelik A.S. | Domestic appliance knob |
| CN202838085U (en) * | 2012-09-06 | 2013-03-27 | 海能达通信股份有限公司 | Knob cap fixing structure |
| CN104777874A (en) * | 2014-01-10 | 2015-07-15 | 上海德尔格医疗器械有限公司 | End cover assembly and mounting method thereof |
| CN204515584U (en) * | 2015-03-18 | 2015-07-29 | 无锡小天鹅股份有限公司 | The knob assembly of washing facility and there is its washing facility |
| CN211150392U (en) * | 2019-12-31 | 2020-07-31 | 杭州广安汽车电器有限公司 | Knob anti-cracking structure of automobile air conditioner controller |
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| Publication number | Publication date |
|---|---|
| CN111258370B (en) | 2021-06-29 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Knob Anti cracking Structure for Automobile Air Conditioner Controller Effective date of registration: 20221106 Granted publication date: 20210629 Pledgee: The Bank of Hangzhou Fuyang branch of the new Limited by Share Ltd. Pledgor: Hangzhou Guangan Automobile Electric Co.,Ltd. Registration number: Y2022330002961 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |