CN114810654B - Rotating shaft locking structure for pitching of fan and fan with same - Google Patents
Rotating shaft locking structure for pitching of fan and fan with same Download PDFInfo
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- CN114810654B CN114810654B CN202210482333.7A CN202210482333A CN114810654B CN 114810654 B CN114810654 B CN 114810654B CN 202210482333 A CN202210482333 A CN 202210482333A CN 114810654 B CN114810654 B CN 114810654B
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- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The application relates to a rotating shaft locking structure for pitching of a fan and the fan with the same, wherein the locking structure comprises a rotating shaft seat, a rotating shaft and a rotating shaft shell, the rotating shaft shell is sleeved outside the rotating shaft seat, and the rotating shaft is rotatably arranged in the rotating shaft seat; the rotating shaft sleeve is provided with a gear seat, a pressure spring is arranged between the gear seat and the rotating shaft seat, the inner bottom surface of the rotating shaft shell is provided with a limit gear, the outer top surface of the rotating shaft shell is provided with a knob, the knob extends out of the cylindrical body towards the rotating shaft, the inner side surface of the cylindrical body is in threaded connection with a rotating shaft threaded piece, the limit gear penetrates through the rotating shaft shell and is clamped with the rotating shaft threaded piece, and the limit gear can slide along the axial direction of the rotating shaft shell. The application has simple and compact integral structure, high stability and firm locking effect.
Description
Technical Field
The application relates to a rotating shaft locking structure for pitching a fan and the fan with the same.
Background
In order to conveniently adjust the blowing angle of the fan, the existing fan is provided with a pitching structure. Taking a floor fan as an example, the fan comprises a fan main body and a floor stand, and the fan main body is hinged with the floor stand through a rotating shaft, so that pitching adjustment is realized. In order to lock the blowing angle of the fan, the existing pitching structure tightly pushes the rotating shaft through the screw rod, so that the rotating shaft cannot rotate, and the fan main body is locked. The screw is generally provided with a plastic knob, the side surface of the plastic knob is fixedly connected with a screw, and the screw penetrates through the rotating shaft of the floor stand to tightly prop against the fan main body. However, the structure for locking the rotating shaft by local interference is easy to be impacted by external force so as to lose the locking function, and the problem of weak locking exists.
Disclosure of Invention
The application aims to overcome the defects in the prior art, and provides a rotating shaft locking structure for pitching of a fan and the fan with the structure, which can solve the problem of unstable locking.
The application relates to a rotating shaft locking structure for pitching of a fan, which comprises a rotating shaft seat, a rotating shaft and a rotating shaft shell, wherein the rotating shaft shell is sleeved outside the rotating shaft seat, the rotating shaft shell can rotate relative to the rotating shaft seat, and the rotating shaft is rotatably arranged in the rotating shaft seat; the outer periphery side cover of pivot be equipped with can for pivot pivoted gear seat, the gear seat with be equipped with the pressure spring between the pivot seat, the pivot shell be equipped with gear seat meshing spacing gear, the outer top surface of pivot shell is equipped with the knob, the knob is rotatably installed the tip of pivot, the knob orientation the shaft extends the tube-shape body, the medial surface threaded connection of tube-shape body has the pivot screw member, spacing gear with the pivot screw member card is held and can follow the axial slip of pivot shell.
The rotary shaft screw member may include a main cylinder body and a screw portion formed at an outer circumferential side surface of the main cylinder body, wherein a screw groove corresponding to the screw portion is formed at an inner side surface of a cylindrical body of the knob, and the screw portion is placed in the screw groove; the end face of the rotating shaft threaded piece, which faces the limiting gear, can be provided with a plurality of bayonets which are arranged at intervals, the end face of the limiting gear, which faces the rotating shaft shell, can be provided with a plurality of clamping protrusions corresponding to the bayonets, and the clamping protrusions are clamped into the corresponding bayonets; the outer top surface of the rotating shaft shell can outwards extend out of a containing groove, and the knob is placed in the containing groove; the bottom of the accommodating groove can be outwards extended to form a limiting ring, a rotating channel is formed between the outer side surface of the limiting ring and the inner wall of the accommodating groove, the knob extends to extend to the rotating channel to form a guide ring, and the guide ring is inserted into the rotating channel; the guide ring can be provided with a notch, the rotating channel faces the notch to form a limiting part, and the limiting part is placed in the notch; a gasket and an opening clamp spring for preventing the gear seat and the pressure spring from being separated can be sleeved on the peripheral side of the rotating shaft; the middle part of the limiting gear and the end face of the rotating shaft shell can be provided with fixing holes for the rotating shaft to pass through; the limiting gear can be provided with a plurality of first meshing teeth which are arranged at intervals towards the end face of the gear seat, tooth grooves are formed between two adjacent first meshing teeth, the gear seat can be provided with a plurality of second meshing teeth which are arranged at intervals towards the end face of the limiting gear, and the second meshing teeth are correspondingly inserted into the tooth grooves.
The application also relates to a fan, which comprises the rotating shaft locking structure, a fan main body and a landing frame, wherein the rotating shaft seat is fixedly arranged on the fan main body, and the rotating shaft shell is fixedly arranged on the landing frame.
The rotating shaft locking structure for pitching of the fan and the fan have the following beneficial effects:
(1) The gear seat and the limit gear are completely meshed or incompletely meshed to realize locking or unlocking of the rotating shaft, so that the locking mode of tightly pushing the screw is replaced, and the problem of unstable locking in the past is solved.
(2) The whole structure is simple and compact, the locking working stability of the rotating shaft is high, the locking effect is firm, the assembly is simple, the operation is convenient and quick, and the manufacturing cost is low.
Drawings
The application will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the application, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is an exploded view of a fan in an embodiment.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an exploded view of a shaft locking structure for fan pitch in an embodiment.
Fig. 4 is a schematic structural diagram of a rotating shaft seat in an embodiment.
Fig. 5 is a schematic structural diagram of a rotating shaft in an embodiment.
Fig. 6 is a schematic structural view of a rotor housing in an embodiment.
Fig. 7 is an assembly schematic diagram of a gear seat and a limiting gear in an embodiment.
Reference numerals: the fan main body 1, the bearing 10, the locking assembly 2, the rotating shaft 20, the rotating shaft seat 21, the mounting seat 211, the rotating shaft housing 22, the fixing hole 221, the accommodating groove 222, the limiting ring 223, the rotating channel 224, the pressure spring 23, the gear seat 24, the second meshing teeth 241, the limiting gear 25, the first meshing teeth 251, the clamping protrusions 252, the rotating shaft screw 26, the screw thread 261, the bayonet 262, the knob 27, the cylindrical body 271, the screw thread groove 272, the guide ring 273, the gasket 28, the opening clamp spring 29 and the floor stand 3.
Detailed Description
The application will be further described with reference to the following examples.
An embodiment of a fan of the present application, as shown in fig. 1 to 2, includes a fan body 1 and a landing frame 3, wherein both sides of the fan body 1 are hinged to the landing frame 3 through a hinge assembly. The fan main body 1 is provided with the rotating shafts 20 on both left and right sides, the rotating shaft locking structure of the embodiment can be arranged on the rotating shaft 20 on one side only, and the relative rotation of the fan main body 1 and the floor stand 3 is realized on the other side only through the bearing 10.
In the embodiment of the fan pitching rotation shaft locking structure of the present application, referring to fig. 2 and 3, the locking structure includes a rotation shaft seat 21 and a rotation shaft housing 22. The rotating shaft seat 21 is in a cylindrical shape, and the rotating shaft seat 21 is fixedly arranged on the side surface of the fan main body 1. Referring to fig. 4, a mounting seat 211 for blocking the inside of the rotating shaft seat 21 is formed in the rotating shaft seat 21, and a through hole for the rotating shaft 20 to pass through is formed in the middle of the mounting seat 211. The rotating shaft shell 22 is cylindrical and sleeved on the outer side of the rotating shaft seat 21, so that the rotating shaft shell 22 can rotate relative to the rotating shaft seat 21, and the rotating shaft shell 22 is fixedly connected with the floor frame 3. The head of the rotating shaft 20 is clamped on the inner bottom surface of the mounting seat 211 and penetrates through the through hole of the mounting seat 211, so that the rotating shaft 20 is rotatably mounted in the rotating shaft seat 21. The other end of the rotating shaft 20 extends out of the end face of the rotating shaft seat 21 and is clamped and fixed with the rotating shaft shell 22. Specifically, referring to fig. 5 and 6, the rotating shaft 20 is divided into three sections, the upper and lower surfaces of the middle section are provided with flat parts, the cross section of the flat parts is approximately rectangular, the end surface of the rotating shaft housing 22 is provided with a fixing hole 221 through which the rotating shaft 20 passes, and the middle section of the rotating shaft 20 is placed in the fixing hole 221, so that the clamping connection between the rotating shaft 20 and the rotating shaft housing 22 is realized.
Referring to fig. 3, a gear seat 24 rotatable relative to the rotating shaft 20 is sleeved on the outer peripheral side of the rotating shaft 20, a compression spring 23 is arranged between the gear seat 24 and the rotating shaft seat 21, and a limiting gear 25 meshed with the gear seat 24 is arranged on the inner bottom surface of the rotating shaft shell 22. Referring to fig. 7, a plurality of first engaging teeth 251 are formed on an end surface of the limiting gear 25 facing the gear seat 24, tooth grooves are formed between two adjacent first engaging teeth 251, a plurality of second engaging teeth 241 are formed on an end surface of the limiting gear 25 facing the gear seat 24, and the second engaging teeth 241 are correspondingly inserted into one tooth groove.
In this embodiment, the outer top surface of the shaft housing 22 is provided with a knob 27, and the knob 27 is rotatably installed at the end of the shaft 20. Specifically, the knob 27 may be connected to an end of the rotating shaft 20 through a bolt, and the knob 27 may be rotated relative to the rotating shaft 20, and may prevent the knob 27 from being separated from the rotating shaft 20. Referring to fig. 3, the knob 27 extends out of the cylindrical body 271 toward the rotary shaft 20, and the rotary shaft screw 26 is screw-coupled to the inner side surface of the cylindrical body 271. Specifically, the rotation shaft screw 26 includes a main cylinder and a screw portion 261 formed at an outer peripheral side surface of the main cylinder, a screw groove 272 corresponding to the screw portion 261 is formed at an inner side surface of the cylinder 271 of the knob 27, and the screw portion 261 is placed in the screw groove 272. The limit gear 25 passes through the rotating shaft shell 22 and is clamped with the rotating shaft screw 26. Preferably, the end surface of the rotating shaft screw member 26 facing the limiting gear 25 is formed with a plurality of bayonets 262 arranged at intervals, and the end surface of the limiting gear 25 facing the rotating shaft housing 22 extends a plurality of clamping protrusions 252 corresponding to the bayonets 262. The clamping convex 252 penetrates out of the end face of the rotating shaft shell 22 and is clamped into the corresponding bayonet 262, so that clamping connection between the limiting gear 25 and the rotating shaft threaded piece 26 is realized, and the limiting gear 25 can slide along the axial direction of the rotating shaft shell 22.
In the unlocked state, the spindle screw 26 is screwed into the knob 27, and the limiting gear 25 has a certain degree of freedom in the axial direction, at this time, the elastic force of the compression spring 23 itself drives the gear seat 24 and the limiting gear 25 to slide toward the knob 27, and the first engagement tooth 251 and the second engagement tooth 241 are in an incompletely engaged state. The fan main body 1 is swung by applying external force, and after the external force overcomes the self elastic force of the pressure spring 23, the rotating shaft seat 21 can rotate relative to the rotating shaft shell 22, so that the air blowing angle of the fan is adjusted. In the locked state, the knob 27 is rotated to the locked position, and the rotation of the knob 27 is converted into the axial movement of the rotation shaft screw 26 due to the threaded connection of the rotation shaft screw 26 and the knob 27, so that the rotation shaft screw 26 drives the limit gear 25 to move toward the gear seat 24. The limiting gear 25 presses the gear seat 24, and the gear seat 24 presses the pressure spring 23, so that the pressure spring 23 is in a compressed state. At this time, the first engagement teeth 251 and the second engagement teeth 241 are in a completely engaged state, the gear seat 24 and the limit gear 25 are in a locked state, and the rotating shaft seat 21 cannot rotate relative to the rotating shaft housing 22, so as to achieve the purpose of fixing the blowing angle of the fan.
In this embodiment, in order to prevent the knob 27 from being separated from the rotary shaft housing 22, the outer top surface of the rotary shaft housing 22 extends outwards to form a receiving groove 222, and the knob 27 is placed in the receiving groove 222. In order to facilitate the guiding of the rotation of the knob 27, the bottom of the accommodating groove 222 extends outwards to form a limiting ring 223, and a rotation channel 224 is formed between the outer side surface of the limiting ring 223 and the inner wall of the accommodating groove 222. The knob 27 extends out of the guide ring 273 toward the rotation passage 224, and the guide ring 273 is inserted into the rotation passage 224. In order to limit the rotation angle of the knob 27, the guide ring 273 is provided with a notch, and the rotation channel 224 protrudes towards the notch to form a limiting part, and the limiting part can be placed in the notch. It should be noted that the opening range of the notch can be larger, so that the limiting part can do circular motion in the notch, when one side surface of the notch abuts against the limiting part, the knob 27 is in an unlocking state, and when the other side surface of the notch abuts against the limiting part, the knob 27 is in a locking state, so that the rotation range of the knob 27 can be effectively limited.
In this embodiment, in order to prevent the rotation of the limiting gear 25, the cross-sectional shape of the middle part of the rotating shaft 20 is rectangular, the middle part of the limiting gear 25 is provided with a fixing hole 221 through which the rotating shaft 20 passes, and the middle part of the rotating shaft 20 is inserted into the fixing hole 221. The outer peripheral side of the rotating shaft 20 can be sleeved with a gasket 28 and an opening clamp spring 29 for preventing the gear seat 24 and the pressure spring 23 from being separated.
The application adopts complete engagement or incomplete engagement between the gear seat 24 and the limit gear 25 to realize locking or unlocking of the rotating shaft 20, replaces the prior locking mode of tightly pushing a screw rod, and solves the problem of weak locking in the prior art. The whole structure is simple and compact, the stability is high, the locking effect is firm, the assembly is simple, the operation is convenient and quick, and the manufacturing cost is low.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the scope of the present application, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present application without departing from the spirit and scope of the technical solution of the present application.
Claims (8)
1. The rotating shaft locking structure for pitching of the fan is characterized by comprising a rotating shaft seat, a rotating shaft and a rotating shaft shell, wherein the rotating shaft shell is sleeved outside the rotating shaft seat, the rotating shaft shell can rotate relative to the rotating shaft seat, and the rotating shaft is rotatably arranged in the rotating shaft seat;
The rotary shaft is characterized in that a gear seat capable of rotating relative to the rotary shaft is sleeved on the outer peripheral side of the rotary shaft, a pressure spring is arranged between the gear seat and the rotary shaft seat, a limiting gear meshed with the gear seat is arranged on the rotary shaft shell, a knob is arranged on the outer top surface of the rotary shaft shell and is rotatably arranged at the end part of the rotary shaft, the knob extends out of a cylindrical body towards the rotary shaft, a rotary shaft threaded piece is connected with the inner side surface of the cylindrical body in a threaded manner, and the limiting gear is clamped with the rotary shaft threaded piece and can slide along the axial direction of the rotary shaft shell; the rotating shaft screw comprises a main cylinder body and a screw thread part formed on the outer peripheral side surface of the main cylinder body, and a screw thread groove corresponding to the screw thread part is formed on the inner side surface of the cylindrical body of the knob; the rotating shaft threaded piece faces the end face of the limiting gear, a plurality of bayonets which are distributed at intervals are formed on the end face of the limiting gear, a plurality of clamping protrusions corresponding to the bayonets extend out of the end face of the rotating shaft shell, and the clamping protrusions are clamped into the corresponding bayonets.
2. The shaft lock structure for a fan pitch as defined in claim 1, wherein: the outer top surface of the rotating shaft shell outwards extends out of the accommodating groove, and the knob is placed in the accommodating groove.
3. The shaft lock structure for a fan pitch as claimed in claim 2, wherein: the bottom of the accommodating groove extends outwards to form a limiting ring, a rotating channel is formed between the outer side surface of the limiting ring and the inner wall of the accommodating groove, the knob extends towards the rotating channel to form a guide ring, and the guide ring is inserted into the rotating channel.
4. A shaft lock structure for a fan pitch as defined in claim 3, wherein: the guide ring is provided with a notch, the rotating channel faces the notch to form a limiting part, and the limiting part is placed in the notch.
5. A shaft lock arrangement for a fan pitch as defined in any one of claims 1-4, wherein: the outer periphery side of the rotating shaft is also sleeved with a gasket and an opening clamp spring for preventing the gear seat and the pressure spring from being separated.
6. The fan pitch shaft locking mechanism as defined in claim 5, wherein: the middle part of the limiting gear and the end face of the rotating shaft shell are provided with fixing holes for the rotating shaft to pass through.
7. A fan pitch spindle lock arrangement as claimed in any one of claims 1 to 4 and 6, wherein: the gear seat is provided with a plurality of first meshing teeth which are arranged at intervals towards the end face of the gear seat, tooth grooves are formed between two adjacent first meshing teeth, a plurality of second meshing teeth which are arranged at intervals towards the end face of the gear seat, and the second meshing teeth are correspondingly inserted into the tooth grooves.
8. A fan, characterized in that: the fan further comprising a fan main body and a landing frame, wherein the rotating shaft seat is fixedly installed on the fan main body, and the rotating shaft housing is fixedly installed on the landing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210482333.7A CN114810654B (en) | 2022-05-05 | Rotating shaft locking structure for pitching of fan and fan with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210482333.7A CN114810654B (en) | 2022-05-05 | Rotating shaft locking structure for pitching of fan and fan with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114810654A CN114810654A (en) | 2022-07-29 |
| CN114810654B true CN114810654B (en) | 2024-05-31 |
Family
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB703458A (en) * | 1951-11-28 | 1954-02-03 | Sturtevant Eng Co Ltd | Improvements in axial flow fans |
| CN104776063A (en) * | 2015-04-29 | 2015-07-15 | 广东美的环境电器制造有限公司 | Electric fan connector assembly and electric fan thereof |
| CN205101269U (en) * | 2015-10-22 | 2016-03-23 | 苏伟明 | Industry fan support frame improvement structure |
| CN107806434A (en) * | 2017-11-09 | 2018-03-16 | 信宜市汇美电器有限公司 | Fan head angle-regulation structure |
| CN209586752U (en) * | 2019-02-27 | 2019-11-05 | 浙江久友电器科技有限公司 | The multiple head oscillating structure of fan |
| CN209743221U (en) * | 2019-03-12 | 2019-12-06 | 珠海格力电器股份有限公司 | Pitching shaft fixing mechanism and fan |
| CN209743220U (en) * | 2019-02-19 | 2019-12-06 | 珠海格力电器股份有限公司 | fan with cooling device |
| CN110630547A (en) * | 2019-11-11 | 2019-12-31 | 佛山市顺德区园丰电器有限公司 | Electric fan every single move angle adjustment mechanism |
| CN113279990A (en) * | 2021-06-28 | 2021-08-20 | 江门市金沃克科技有限公司 | Folding fan |
| CN214063344U (en) * | 2020-10-28 | 2021-08-27 | 追觅科技(上海)有限公司 | Bracing piece and have its floor fan |
| CN214499489U (en) * | 2021-01-29 | 2021-10-26 | 艾美特电器（深圳）有限公司 | Head pitching structure of fan |
| CN216199149U (en) * | 2021-11-08 | 2022-04-05 | 宁波先锋电器制造有限公司 | Fan head pitching structure and fan with same |
| CN217327788U (en) * | 2022-05-05 | 2022-08-30 | 宁波先锋电器制造有限公司 | Fan every single move's pivot locking structure and have fan of this structure |
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB703458A (en) * | 1951-11-28 | 1954-02-03 | Sturtevant Eng Co Ltd | Improvements in axial flow fans |
| CN104776063A (en) * | 2015-04-29 | 2015-07-15 | 广东美的环境电器制造有限公司 | Electric fan connector assembly and electric fan thereof |
| CN205101269U (en) * | 2015-10-22 | 2016-03-23 | 苏伟明 | Industry fan support frame improvement structure |
| CN107806434A (en) * | 2017-11-09 | 2018-03-16 | 信宜市汇美电器有限公司 | Fan head angle-regulation structure |
| CN209743220U (en) * | 2019-02-19 | 2019-12-06 | 珠海格力电器股份有限公司 | fan with cooling device |
| CN209586752U (en) * | 2019-02-27 | 2019-11-05 | 浙江久友电器科技有限公司 | The multiple head oscillating structure of fan |
| CN209743221U (en) * | 2019-03-12 | 2019-12-06 | 珠海格力电器股份有限公司 | Pitching shaft fixing mechanism and fan |
| CN110630547A (en) * | 2019-11-11 | 2019-12-31 | 佛山市顺德区园丰电器有限公司 | Electric fan every single move angle adjustment mechanism |
| CN214063344U (en) * | 2020-10-28 | 2021-08-27 | 追觅科技(上海)有限公司 | Bracing piece and have its floor fan |
| CN214499489U (en) * | 2021-01-29 | 2021-10-26 | 艾美特电器（深圳）有限公司 | Head pitching structure of fan |
| CN113279990A (en) * | 2021-06-28 | 2021-08-20 | 江门市金沃克科技有限公司 | Folding fan |
| CN216199149U (en) * | 2021-11-08 | 2022-04-05 | 宁波先锋电器制造有限公司 | Fan head pitching structure and fan with same |
| CN217327788U (en) * | 2022-05-05 | 2022-08-30 | 宁波先锋电器制造有限公司 | Fan every single move's pivot locking structure and have fan of this structure |
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