Crank connecting rod head shaking device and head shaking tower fan
By introducing a buffer member and enlarging the connection area into the crank connecting rod shaker device, the shaking problem of the tower fan when the rapid return is accelerated is solved, and the smooth operation of the tower fan and noise reduction are achieved.
Patent Information
- Application Number
- CN202420970223.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing crank rocker mechanism will cause unstable and shaking of the tower fan when the rapid return is accelerated, mainly due to the accumulation of motion clearance and the shaking problems caused by the rapid return characteristics.
A crank connecting rod shake head device is designed. By setting a buffer between the turntable and the base, an elastic connection is achieved, axial vibration is reduced, and the connection area of the turntable and the base is designed to enhance the buffer limit effect of the structure to ensure that Overall operation is stable.
It effectively alleviates the shaking problem of the crank connecting rod shaking device when the crank connecting rod is accelerated, ensures the smooth operation of the tower fan and the reduction of noise, and improves the stability of the structure.
Smart Images
Figure CN222208355U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of daily household appliances, and more specifically to a crank-connecting rod oscillating head device and an oscillating head tower fan. Background Art
[0002] In daily life, people often use various types of fans to get rid of the heat in summer. Among them, the most popular is the tower fan, which is slender and upright, and obviously different from the traditional rotary fan. The tower fan does not have the blades of the traditional fan, but the wind is thrown out through a fan to form an airflow, so its blowing method is closer to natural wind, so it is very popular.
[0003] A crank-rocker mechanism is generally provided in a tower fan to realize swing air supply. The crank-rocker mechanism uses a synchronous motor, so the overall cost is low, and it uses alternating current, which does not require a step-down circuit. However, the crank-connecting rod mechanism also has defects. For example, the shaking function is realized by the cooperation of its multiple parts. In order to ensure smooth installation and movement of each part within the manufacturing tolerance, the rotating shaft between each rotating pair has a certain movement gap. However, the accumulation of these movement gaps and the quick return characteristics of the crank-rocker mechanism will cause the entire crank-rocker mechanism to shake at a certain angle, which will cause the entire tower fan to operate unstably.
[0004] Therefore, the industry needs to provide an improved crank-connecting rod oscillating device and a corresponding oscillating tower fan to overcome the defects of the above-mentioned prior art. Utility Model Content
[0005] The utility model aims to solve the above problems and provides a crank-connecting rod shaking head device and a tower fan.
[0006] In order to meet the purpose of the utility model, the utility model adopts the following technical solutions:
[0007] A crank-connecting rod shaking head device comprises: a turntable bracket, a motor arranged on the turntable bracket, a crank and a connecting rod rotatably connected to the motor, one end of the connecting rod is rotatably connected to the crank, and also comprises a turntable rotatably arranged on the turntable bracket, the turntable is rotatably connected to the other end of the connecting rod, and a base is arranged on the turntable.
[0008] Preferably, a buffer is provided between the turntable and the base.
[0009] Preferably, a first positioning column is arranged on the base; a second positioning column is arranged on the turntable; the second positioning column is sleeved in the first positioning column; and the buffer is arranged between the first positioning column and the second positioning column.
[0010] Preferably, a step hole is provided in the first positioning column; the buffer member is sleeved on the outside of the second positioning column; and the buffer member is placed in the step hole.
[0011] Preferably, a limiting rib extending along the periphery of the second positioning column is provided on the turntable; and the buffer member is elastically clamped between the limiting rib and the step hole.
[0012] Preferably, a rotating shaft is arranged on the rotating disk bracket; a first shaft sleeve is arranged on the rotating disk; and the first shaft sleeve is rotatably sleeved on the outside of the rotating shaft.
[0013] Preferably, a second sleeve is disposed on the base; and the second sleeve is fixedly mounted on the outside of the first sleeve.
[0014] Preferably, the buffer is an annular buffer. Preferably, the turntable is a fan-shaped turntable.
[0015] At the same time, an oscillating tower fan is provided, comprising: a crank-connecting rod oscillating device and a tower fan body, a pair of supporting arms are arranged on the periphery of the turntable bracket, and the tower fan body is rotatably arranged between the pair of supporting arms.
[0016] Compared with the prior art, the beneficial technical effects of the utility model are as follows:
[0017] In the crank-connecting rod shaking head device provided by the utility model, an additional intermediate connection component, that is, a turntable, is provided, which is rotatably arranged on the turntable bracket, the turntable is rotatably connected to the other end of the connecting rod, and a base is provided on the turntable. Since the turntable and the base are elastically connected with each other by means of a buffer, the size of the turntable can be more accurately controlled, which can alleviate the shaking of the entire crank-connecting rod shaking head device during rapid return acceleration; in addition, the connection area between the turntable and the chassis is larger, which is suitable for designing a buffer limit structure that has requirements on the structural space.
[0018] Additional aspects and advantages of the present invention will be partially given in the following description, which will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0020] Figure 1 It is a three-dimensional structural diagram of the crank-connecting rod shaking head device of the utility model.
[0021] Figure 2 for Figure 1 A three-dimensional exploded view of the crank-connecting rod shaking head device is shown.
[0022] Figure 3 for Figure 2 The three-dimensional structural diagram of the base of the crank-connecting rod shaking head device is shown.
[0023] Figure 4 for Figure 2 The three-dimensional structural diagram of the turntable of the crank-connecting rod shaking head device is shown.
[0024] Figure 5 It is a three-dimensional structural diagram of the tower fan of the present utility model. DETAILED DESCRIPTION
[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and cannot be interpreted as limiting the present invention.
[0026] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may be intermediate elements. In addition, the "connection" or "coupling" used here may include wireless connection or wireless coupling. The term "and / or" used here includes all or any unit and all combinations of one or more associated listed items.
[0027] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as the meaning in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.
[0028] In one embodiment of the present invention, reference Figure 1-5, a crank-connecting rod shaking head device 100 for a tower fan is provided, which is used to realize the shaking head function of the tower fan air outlet device, such as the horizontal (that is, left and right) shaking head movement, thereby realizing swinging air supply and enhancing the air supply angle of the tower fan.
[0029] In this embodiment, the crank-connecting rod shaking head device 100 includes a turntable bracket 20, which serves as the main rotating component of the shaking head type household electrical appliance product, and realizes the rotation of the functional components of the electrical appliance product, such as left and right swinging, thereby realizing the shaking head action.
[0030] The main functional components of the electrical product, such as a heating component, an air outlet component, or a humidifying component, can be installed at an appropriate position of the turntable bracket 20, such as the top, so that these functional components can rotate synchronously with the turntable bracket 20. The turntable bracket 20 is usually cylindrical in shape as a whole, with a notch formed on the top to arrange the above functional components, and various structures are arranged at the bottom to achieve rotation relative to the base. Of course, in other embodiments, the turntable bracket 20 may also have other appropriate structures, which is not limited by the present invention.
[0031] The rotation of the functional components relative to the base is achieved by a certain transmission mechanism. In one embodiment, the transmission structure may include a motor 70, which is arranged on the turntable bracket 20. The transmission structure may also include a crank 50, a connecting rod 40 and a turntable 30 that are rotatably connected to the motor 70. The motor 70 is the main power source of the entire oscillating household appliance, and it provides its own output shaft (not shown) to provide rotational power to the outside. Here, the crank 50 is rotatably connected to the motor 70, so when the motor 70 is running, the crank 50 realizes a certain swing according to its own geometric characteristics, the crank 50 is rotatably connected to one end of the connecting rod 40, and the turntable 30 is rotatably connected to the other end of the connecting rod 40, so when the crank 50 rotates, it causes the connecting rod 40 to also produce a certain swing, and the turntable 30 rotatably connected to the connecting rod 40 also produces a certain rotation accordingly. The turntable 30 is rotatably arranged on the turntable bracket 20, and the turntable 30 is provided with a base 10, so when the motor 70 is running, it causes the turntable bracket 20 to rotate relative to the base 10.
[0032] Here, a turntable is additionally provided, which is rotatably arranged on the turntable bracket, the turntable is rotatably connected to the other end of the connecting rod, and a base is arranged on the turntable. The turntable and the base are elastically connected by means of a buffer, so that the size of the turntable can be more accurately controlled, which can alleviate the shaking of the entire crank connecting rod shaking device during rapid return acceleration; in addition, the connection area between the turntable and the chassis is larger, which is suitable for designing a buffer limit structure that has requirements on the structural space.
[0033] Preferably, a buffer 60 is provided between the turntable 30 and the base 10. The buffer 60 can reduce the axial vibration between the turntable 30 and the base 10, thereby ensuring that the entire crank connecting rod oscillating device and the tower fan using the device run smoothly as a whole without noise caused by shaking.
[0034] In one embodiment, in order to realize convenient and stable installation of the buffer member 60, a first positioning column 124 may be provided on the base 10. Accordingly, a second positioning column 326 may be provided on the turntable 30. The second positioning column 326 is sleeved in the first positioning column 124, and the buffer member 60 is provided between the first positioning column 124 and the second positioning column 326. In other words, the buffer member 60 is provided between the two positioning columns, thereby ensuring that the buffer member 60 will not fall off axially.
[0035] In another embodiment, a step hole 1242 may be opened in the first positioning column 124; then the buffer 60 is sleeved on the outside of the second positioning column 326; and the buffer 60 is placed in the step hole 1242. The outer circumferential surface of the second positioning column 326 tightly holds the buffer 60 open, so the buffer 60 can be firmly fixed on the second positioning column 326 by means of the surface friction between the two. At the same time, since the buffer 60 is placed in the step hole 1242, the position accuracy of the buffer 60 is further ensured.
[0036] The buffer 60 can be made of various elastic materials, such as rubber materials. The buffer 60 can also be embodied as a compression spring, which is made of, for example, a spring-specific alloy material. The utility model does not make specific restrictions on this. In addition, the buffer 60 as a whole can be an annular structure, such as a cylindrical structure or a prismatic structure, and the utility model does not make any restrictions on this.
[0037] In order to enhance the structural strength of the second positioning column 326, a limiting rib 328 extending along the periphery of the second positioning column 326 may be provided on the rotating disk 30. After the limiting rib 328 is provided, for example, the limiting rib 328 extending radially along the circumferential surface of the second positioning column 326, since the limiting rib 328 is connected to the bottom of the rotating disk 30 and the circumferential surface of the second positioning column 326 at the same time, the structural strength of the second positioning column 326 is enhanced as a whole. In this case, the buffer 60 is elastically clamped between the limiting rib 328 and the step hole 1242. Since one end of the buffer 60 abuts against the limiting rib 328, and the other end thereof abuts against the step hole 1242, the two ends of the buffer 60 are clamped by the two, thereby achieving a buffering effect through the elastic compression of the buffer 60.
[0038] In addition, a pivot 324 may be provided on the rotating disk 30, and the pivot 324 is pivotally connected to the other end of the connecting rod 40. Thus, the rotating disk 30 and the connecting rod 40 can be rotated.
[0039] In one embodiment, a rotating shaft 22 is provided on the turntable bracket 20; a first sleeve 322 is provided on the turntable 30; and the first sleeve 322 is rotatably sleeved on the outside of the rotating shaft 22. In other words, the rotation between the turntable bracket 20 and the turntable 30 is achieved by the rotational cooperation between the rotating shaft 22 and the first sleeve 322. In another embodiment, a sleeve may be provided on the turntable bracket 20, and a rotating shaft may be provided on the turntable 30, and the above-mentioned technical effect of rotation may also be achieved. In addition, a bearing may be provided in the first sleeve 322 to ensure the smoothness of the relative rotation between the rotating shaft and the first sleeve, and the provision of the bearing may also avoid the wear and failure of the first sleeve and / or the rotating shaft itself caused by the direct rotation between the rotating shaft and the first sleeve.
[0040] Furthermore, a second sleeve 122 may be provided on the base 10. The second sleeve 122 is fixedly sleeved on the outside of the first sleeve 322. This is also to achieve a smooth relative rotation effect. It also avoids direct rotation friction between components, thereby avoiding wear of key rotating components themselves.
[0041] The turntable 30 can be of any appropriate structure. For example, in one embodiment, the turntable 30 is a fan-shaped turntable, such as a fan-shaped turntable with an acute arc angle or a fan-shaped turntable with a right arc angle, or even a fan-shaped turntable with an obtuse angle like a folding fan. The present application does not impose any limitation on this, as long as its function can be achieved.
[0042] Meanwhile, an oscillating tower fan is provided, which comprises: the crank connecting rod oscillating device and a tower fan body 206. A pair of supporting arms 202 are arranged at the periphery of the turntable bracket 20, and the tower fan body 206 is rotatably arranged between the pair of supporting arms 202.
[0043] Those skilled in the art will appreciate that the various operations, methods, steps, measures, and schemes in the processes discussed in this application may be alternated, altered, combined, or deleted. Further, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application may also be alternated, altered, rearranged, decomposed, combined, or deleted. Further, the steps, measures, and schemes in the prior art that are similar to those disclosed in this application may also be alternated, altered, rearranged, decomposed, combined, or deleted.
[0044] The above description is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.
Claims
1. A crank-connecting rod shaking head device, comprising: A turntable bracket, a motor arranged on the turntable bracket, a crank and a connecting rod rotatably connected to the motor, one end of the connecting rod is rotatably connected to the crank, and is characterized in that it also includes a turntable rotatably arranged on the turntable bracket, the turntable is rotatably connected to the other end of the connecting rod, and a base is arranged on the turntable.
2. The crank-connecting rod oscillating device according to claim 1, characterized in that: A buffer is arranged between the rotating disk and the base.
3. The crank-connecting rod oscillating device according to claim 2, characterized in that: A first positioning column is arranged on the base; a second positioning column is arranged on the turntable; the second positioning column is sleeved in the first positioning column; and the buffer is arranged between the first positioning column and the second positioning column.
4. The crank-connecting rod oscillating device according to claim 3, characterized in that: A step hole is provided in the first positioning column; the buffer component is sleeved on the outside of the second positioning column; and the buffer component is placed in the step hole.
5. The crank-connecting rod oscillating device according to claim 4, characterized in that: The rotating disk is provided with a limiting rib extending along the periphery of the second positioning column; the buffer component is elastically clamped between the limiting rib and the step hole.
6. The crank-connecting rod oscillating device according to claim 1, characterized in that: A rotating shaft is arranged on the rotating disk bracket; a first shaft sleeve is arranged on the rotating disk; and the first shaft sleeve is rotatably sleeved on the outside of the rotating shaft.
7. The crank-connecting rod oscillating device according to claim 6, characterized in that: A second shaft sleeve is arranged on the base; and the second shaft sleeve is fixedly sleeved on the outside of the first shaft sleeve.
8. The crank-connecting rod oscillating device according to claim 2, characterized in that: The buffer is an annular buffer.
9. The crank-connecting rod oscillating device according to claim 1, characterized in that: The turntable is a fan-shaped turntable.
10. An oscillating tower fan, characterized in that: It comprises a tower fan body, and a crank-connecting rod shaking head device as described in any one of claims 1 to 9, wherein a pair of supporting arms are arranged at the periphery of the turntable bracket, and the tower fan body is rotatably arranged between the pair of supporting arms.