阅读说明：本技术 一种具有扇叶边缘折叠结构的轴流风扇 (Axial fan with blade edge folding structure ) 是由 宋昕 陈连芝 魏希盟 让内·申克 于 2020-12-08 设计创作，主要内容包括：本发明涉及呼吸机配件技术领域,尤其是一种具有扇叶边缘折叠结构的轴流风扇,包括驱动风机本体和侧向驱动叶片,驱动风机本体上端通过顶部转轴固定连接有顶部转动罩。本发明的一种具有扇叶边缘折叠结构的轴流风扇在驱动风机本体上端的顶部转轴上安装外侧具有外部安装筒的顶部转动罩,通过顶部转动罩内侧面上的内部装配筒和外侧面上的安装插槽对侧向驱动叶片进行安装,然后通过顶部转动罩内侧面上的纵向传动轴与侧向装配转轴啮合传动,方便对侧向驱动叶片进行限位安装；在顶部密封盖下表面具有底置调节齿环和侧向限位卡槽的内部调节管,通过顶部密封盖来控制调节和限位,操作简单方便,大大方便后期的维修更换。(The invention relates to the technical field of breathing machine accessories, in particular to an axial flow fan with a fan blade edge folding structure. According to the axial flow fan with the fan blade edge folding structure, the top rotating cover with the outer installation barrel is arranged on the outer side of the top rotating shaft at the upper end of the driving fan body, the lateral driving blades are installed through the internal assembly barrel on the inner side surface of the top rotating cover and the installation slot on the outer side surface of the top rotating cover, and then the longitudinal transmission shaft on the inner side surface of the top rotating cover is meshed with the lateral assembly rotating shaft for transmission, so that the lateral driving blades are conveniently limited and installed; the lower surface of the top sealing cover is provided with an internal adjusting pipe with a bottom adjusting toothed ring and a lateral limiting clamping groove, the top sealing cover is used for controlling and adjusting and limiting, the operation is simple and convenient, and the maintenance and the replacement in the later stage are greatly facilitated.)

1. An axial fan with a fan blade edge folding structure comprises a driving fan body (1) and a lateral driving blade (2), and is characterized in that: the upper end of the driving fan body (1) is fixedly connected with a top rotating cover (3) through a top rotating shaft, the edge position of the outer side surface of the top rotating cover (3) is provided with an integral structure external installation cylinder (4) protruding downwards, the inner side surface of the external installation cylinder (4) is fixedly connected with an internal assembly cylinder (5), the connecting end of the lateral driving blade (2) is axially fixed with an integral structure lateral assembly rotating shaft (6), the lateral driving blade (2) is inserted into the internal assembly cylinder (5) through the lateral assembly rotating shaft (6) and is connected with the outer side of the external installation cylinder (4), the inner arc surface of the external installation cylinder (4) is positioned above the internal assembly cylinder (5) and is fixedly connected with an integral structure movable installation support (8) with a built-in longitudinal transmission shaft (7), and the inner bottom surface of the top rotating cover (3) is provided with strip-shaped assembly through holes (9) distributed in an annular, bar assembly through-hole (9) medial extremity offer inboard loading and unloading through-hole (10) that are used for loading and unloading longitudinal drive axle (7), the top rotate cover (3) upper end open position and have top sealed lid (11) through bolt fixed mounting, the top rotate cover (3) in bottom central point put and have a bellied internal thread assembly pipe of integrative structure (12) that makes progress, the sealed lid of top (11) lower surface have inside control tube of an integrative structure (13), inside control tube (13) outside arcwall face bottom have an integrative structure and adjust ring gear (14), inside control tube (13) lateral surface arcwall face bottom have inside sunken side direction spacing draw-in groove (15).

2. The axial fan with the fan blade edge folding structure as claimed in claim 1, wherein: the top sealing cover (11) is screwed into the inner thread assembly pipe (12) through a bolt and is fixedly connected with the upper end opening of the top rotating cover (3).

3. The axial fan with the fan blade edge folding structure as claimed in claim 1, wherein: the inner side surface of the external mounting cylinder (4) is positioned at an upper end opening position and is provided with a top sinking groove (16), and the outer side arc surface of the top sealing cover (11) and the inner side arc surface of the top sinking groove (16) are provided with annular tooth surfaces which are meshed with each other.

4. The axial fan with the fan blade edge folding structure as claimed in claim 1, wherein: the sealed lateral surface of lid (11) in top on the symmetry seted up and put the arc on a left side and accomodate groove (17) and put the arc on the right side and accomodate groove (18), the arc of putting on a left side accomodate groove (17) and put the arc on the right side and accomodate groove (18) inside all be equipped with through leading pivot activity and be used for conveniently controlling pivoted upset control handle (19).

5. The axial fan with the fan blade edge folding structure as claimed in claim 4, wherein: put the arc on a left side and accomodate groove (17) and put arc on the right side and accomodate groove (18) inside and be located upper end open position fixedly connected with and be used for promoting outside rubber stopper (20) of upset control handle (19) installation firmness.

6. The axial fan with the fan blade edge folding structure as claimed in claim 1, wherein: the outer side arc-shaped surface of the outer mounting cylinder (4) is positioned at the connecting end of the lateral driving blade (2) and is provided with a longitudinal mounting slot (21) and an inclined mounting slot (22), and the cross end of the longitudinal mounting slot (21) and the inclined mounting slot (22) is communicated with the outer side opening of the inner mounting cylinder (5).

7. The axial fan with the fan blade edge folding structure as claimed in claim 6, wherein: the depth inside the longitudinal installation slot (21) gradually becomes deeper from the center to two sides.

8. The axial fan with the fan blade edge folding structure as claimed in claim 1, wherein: the lateral assembling rotating shaft (6) is characterized in that a conical lateral transmission groove (23) is formed in the arc-shaped surface of the outer side of the longitudinal transmission shaft (7), and an overhead transmission gear (24) is axially and fixedly connected to the upper end and the lower end of the longitudinal transmission shaft (7).

Technical Field

The invention relates to the technical field of breathing machine accessories, in particular to an axial flow fan with a fan blade edge folding structure.

Background

In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and has a very important position in the modern medical field. The breathing machine is a vital medical device which can prevent and treat respiratory failure, reduce complications and save and prolong the life of a patient.

The ventilator is divided into a Controlled Mechanical Ventilation (CMV) and an Auxiliary Mechanical Ventilation (AMV) according to the type of use, and is powered by an internal centrifugal fan, which mainly consists of a volute, an impeller and a motor. Centrifugal fans use high-speed rotation to generate centrifugal force, which is a virtual force and is an inertial embodiment that moves a rotating object away from its center of rotation. In newton mechanics, it has been used to describe two different concepts: an inertial force, a balance of centripetal forces, observed in a non-inertial reference frame.

The external blade matched with the existing centrifugal fan is simple in structure and cannot be adjusted, so that the generated air quantity and the generated wind direction are limited fixedly, the application range is very single, and the assembly and disassembly are very inconvenient.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to solve the problems existing in the background technology, an improved axial flow fan with a fan blade edge folding structure is provided, and the problems that the existing centrifugal fan is simple in structure and cannot be adjusted, the generated air quantity and the wind direction are limited fixedly, the application range is very single, and the assembly and disassembly are very inconvenient are solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: an axial flow fan with a fan blade edge folding structure comprises a driving fan body and lateral driving blades, wherein the upper end of the driving fan body is fixedly connected with a top rotating cover through a top rotating shaft, the edge position of the outer side surface of the top rotating cover is provided with an integral structure external mounting cylinder protruding downwards, the inner side surface of the external mounting cylinder is fixedly connected with an internal mounting cylinder, the connecting end of the lateral driving blades is axially and fixedly provided with an integral structure lateral mounting rotating shaft, the lateral driving blades are inserted into the internal mounting cylinder through the lateral mounting rotating shaft and are connected with the outer side of the external mounting cylinder, the inner side arc surface of the external mounting cylinder is positioned above the internal mounting cylinder and is fixedly connected with an integral structure movable mounting bracket with a built-in longitudinal transmission shaft, and the inner bottom surface of the top rotating cover is provided with strip-shaped mounting through holes distributed in, bar assembly through-hole medial extremity offer the inboard loading and unloading through-hole that is used for loading and unloading vertical transmission shaft, the top rotate cover upper end open position and have the sealed lid of top through bolt fixed mounting, the top rotate cover in the bottom central point put and have the bellied body structure internal thread assembly pipe that makes progress, the sealed lid lower surface of top have the inside control tube of body structure, inside control tube outside arcwall face bottom have a body structure and adjust the ring gear, inside control tube lateral surface arcwall face bottom have the spacing draw-in groove of inside sunken side direction.

The top sealing cover is screwed into the inner part of the internal thread assembling pipe through a bolt and is fixedly connected with an opening at the upper end of the top rotating cover.

The inner side surface of the external mounting cylinder is positioned at an opening position at the upper end and is provided with a top sinking groove, and the outer arc-shaped surface of the top sealing cover and the inner arc-shaped surface of the top sinking groove are provided with annular tooth surfaces which are meshed with each other.

The sealed lateral surface of lid of top on the symmetry seted up a left side and put the arc and accomodate the groove and put the arc in the right side and accomodate the groove, a left side put the arc and accomodate the groove and put the arc in the right side and accomodate inslot portion all through leading pivot activity be equipped with and be used for conveniently controlling pivoted upset control handle.

Put the arc on a left side and accomodate the groove and put the arc on the right side and accomodate inslot portion and be located upper end open position fixedly connected with and be used for promoting the outside rubber stopper of upset control handle installation firmness.

The outer side arc surface of the external mounting cylinder is positioned at the connecting end of the lateral driving blade and is provided with a longitudinal mounting slot and an inclined mounting slot, and the cross end of the longitudinal mounting slot and the inclined mounting slot is communicated with the outer side opening of the internal mounting cylinder.

The depth of the inside of the longitudinal installation slot gradually becomes deeper from the center to two sides.

The lateral assembly rotating shaft is characterized in that a conical lateral transmission groove is formed in the arc-shaped surface on the outer side of the lateral assembly rotating shaft and located at the transmission end of the longitudinal transmission shaft, and an overhead transmission gear is axially and fixedly connected to the upper end and the lower end of the longitudinal transmission shaft.

The invention has the beneficial effects that:

(1) according to the axial flow fan with the fan blade edge folding structure, the top rotating cover with the outer installation barrel is arranged on the outer side of the top rotating shaft at the upper end of the driving fan body, the lateral driving blades are installed through the internal assembly barrel on the inner side surface of the top rotating cover and the installation slot on the outer side surface of the top rotating cover, and then the longitudinal transmission shaft on the inner side surface of the top rotating cover is meshed with the lateral assembly rotating shaft for transmission, so that the lateral driving blades are conveniently limited and installed;

(2) the lower surface of the top sealing cover is provided with an internal adjusting pipe with a bottom adjusting gear ring and a lateral limiting clamping groove, and the adjustment and limiting are controlled through the top sealing cover, so that the operation is simple and convenient, and the later maintenance and replacement are greatly facilitated;

(3) through offer with the internal assembly section of thick bamboo outside lateral arc face vertical installation slot that is linked together with the opening of internal assembly section of thick bamboo outside with put the installation slot to one side and come to install fixedly to side direction drive blade to promote side direction drive blade installation stability and firmness greatly.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a cross-sectional view of the interior of the outer mounting tube of the present invention.

Fig. 3 is a schematic view of the structure of the adjusting mechanism of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

FIG. 1, FIG. 2 and FIG. 3 show an axial fan with a fan blade edge folding structure, which comprises a driving fan body 1 and a lateral driving blade 2, wherein the upper end of the driving fan body 1 is fixedly connected with a top rotating cover 3 through a top rotating shaft, the edge position of the outer side surface of the top rotating cover 3 is provided with an integral structure external installation cylinder 4 protruding downwards, the inner side surface of the external installation cylinder 4 is fixedly connected with an internal assembly cylinder 5, the connecting end of the lateral driving blade 2 is axially fixed with an integral structure lateral assembly rotating shaft 6, the lateral driving blade 2 is inserted into the internal assembly cylinder 5 through the lateral assembly rotating shaft 6 and is connected with the outer side of the external installation cylinder 4, the inner side arc surface of the external installation cylinder 4 is positioned above the internal assembly cylinder 5 and is fixedly connected with an integral structure movable installation support 8 with a built-in longitudinal transmission shaft 7, the inner bottom surface of the, an inner side loading and unloading through hole 10 used for loading and unloading the longitudinal transmission shaft 7 is arranged at the inner side end of the strip-shaped assembling through hole 9, an upper end opening position of the top rotating cover 3 is provided with a top sealing cover 11 through bolt fixed mounting, an upward convex integral structure inner thread assembling pipe 12 is arranged at the center position of the bottom surface in the top rotating cover 3, the lower surface of the top sealing cover 11 is provided with an integral structure inner adjusting pipe 13, an integral structure adjusting toothed ring 14 is arranged at the bottom end of the outer side arc surface of the inner adjusting pipe 13, and an inward concave side limiting clamping groove 15 is arranged at the bottom end of the.

Example (b): a top assembling hole used for installing a longitudinal transmission shaft 7 is formed in the upper surface of the internal assembling cylinder, a lateral assembling rotating shaft 6 descending from the inner side end of the lateral driving blade 2 is inserted into the internal assembling cylinder 5, then the longitudinal transmission shaft 7 is inserted into a strip-shaped assembling through hole 9 from the inside of an inner side assembling through hole 10, an overhead transmission gear at the bottom end of the longitudinal transmission shaft 7 is inserted into the internal assembling cylinder 5 to be in meshing transmission with the lateral assembling rotating shaft 6, then a lateral limiting clamping groove 15 is meshed and fixed to the outer side of the upper end of the overhead transmission gear, and. The inner width of the strip-shaped assembling through hole 9 is smaller than the inner aperture of the inner assembling and disassembling through hole 10.

Further, for convenience of fixing, the top sealing cover 11 is fixed through the opening fixed connection at the upper end of the bolt screwing-in internal thread assembling pipe 12 inside and the top rotating cover 3, further, for the purpose of improving the assembling firmness, the top sinking groove 16 has been seted up at the upper end opening position of the inner side surface of the external mounting cylinder 4, the annular tooth surface of intermeshing has been all been had on the arc surface of the outer side of the top sealing cover 11 and the arc surface of the inner side of the top sinking groove 16, further, for convenience of top storage and control, the left arc storage groove 17 and the right arc storage groove 18 have been symmetrically seted up on the outer side surface of the top sealing cover 11, the left arc storage groove 17 and the right arc storage groove 18 are all assembled through the activity of the preposed rotating shaft and are used for conveniently controlling the rotating turnover control handle 19.

Further, accomodate the firmness in order to promote, put the arc on a left side and accomodate groove 17 and put the arc on the right side and accomodate groove 18 inside and be located the outside rubber stopper 20 that upper end open position fixedly connected with was used for promoting upset control handle 19 installation firmness, further, in order to promote lateral stability and firmness, the outside arcwall face of external installation section of thick bamboo 4 outside is located 2 links of side direction drive blade and has seted up vertical installation slot 21 and put installation slot 22 to one side, vertical installation slot 21 and the cross end of putting installation slot 22 to one side and the 5 outside openings of internal assembly section of thick bamboo are linked together.

Further, in order to improve the stability of the assembling end, the depth inside the longitudinal installation slot 21 gradually becomes deeper from the center to both sides, and further, in order to facilitate transmission adjustment, a tapered lateral transmission slot 23 is formed in the transmission end of the longitudinal transmission shaft 7 on the arc-shaped surface outside the lateral assembly rotating shaft 6, and an overhead transmission gear 24 is fixedly connected to the upper end and the lower end of the longitudinal transmission shaft 7 in the axial direction.

According to the axial flow fan with the fan blade edge folding structure, the top rotating cover 3 with the outer installation barrel 4 is installed on the outer side of the top rotating shaft at the upper end of the driving fan body 1, the lateral driving blades 2 are installed through the internal assembly barrel 5 on the inner side surface of the top rotating cover 3 and the installation slot on the outer side surface, and then the longitudinal transmission shaft 7 on the inner side surface of the top rotating cover 3 is meshed with the lateral assembly rotating shaft 6 for transmission, so that the lateral driving blades 2 are conveniently limited and installed; the lower surface of the top sealing cover 11 is provided with an internal adjusting pipe 13 with a bottom adjusting toothed ring 14 and a lateral limiting clamping groove 15, and the adjustment and limiting are controlled through the top sealing cover 11, so that the operation is simple and convenient, and the later maintenance and replacement are greatly facilitated; the lateral driving blade 2 is fixedly installed through the longitudinal installation slot 21 and the inclined installation slot 22 which are arranged on the outer arc-shaped surface of the outer installation barrel 4 and communicated with the outer opening of the inner assembly barrel 5, so that the installation stability and firmness of the lateral driving blade 2 are greatly improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.