Pipeline fan

Abstract

The pipeline fan comprises a shell part, a driving part, a fan blade part and a reinforcing part, an air channel is formed in the shell part, the driving part is arranged in the air channel, the driving part is provided with an output shaft, the fan blade part is arranged on the output shaft in a sleeved mode, the reinforcing part is arranged on the output shaft in a sleeved mode, the reinforcing part is connected with the fan blade part, and the rotating reinforcing part can drive the fan blade part to rotate. Wherein the driving piece can drive the output shaft to rotate so as to drive the fan blade piece and the reinforcing piece to rotate, and the rotating fan blade piece can drive air in the air channel to flow. By means of the structure, if the thread loosening phenomenon occurs on the pipeline fan, the following conditions need to be met at the same time: 1, the connecting position of the fan blade piece corresponding to the output shaft is abraded; and 2, the connecting part of the reinforcing part corresponding to the output shaft is abraded, so that compared with a traditional pipeline fan in the background technology, the probability of generating a loose tooth phenomenon is lower, in other words, the arrangement of the reinforcing part can reduce the probability of generating the loose tooth phenomenon, and the service life of the pipeline fan can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of ventilation equipment, in particular to a duct fan. Background Art

[0002] A duct fan is a device that drives the air flow in a duct in a ventilation system. In the existing technology, some duct fans include a housing member and a driving member installed in the housing member. The driving member has an output shaft sleeved with a fan blade member. The driving member can drive the fan blade member to rotate through the output shaft to drive the air flow. Among them, during the actual use of the above duct fan, the rotation speed of the output shaft is relatively high. In this regard, the connection part of the fan blade member corresponding to the output shaft is prone to wear, and the phenomenon of slipping teeth (or the fan blade member rotating relative to the output shaft) is likely to occur. Therefore, the service life of the above duct fan is relatively short. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a duct fan, which can reduce the probability of the occurrence of slipping teeth (or the fan blade member rotating relative to the output shaft), so as to extend the service life of the duct fan.

[0004] A duct fan according to an embodiment of the utility model includes a housing member, a driving member, a fan blade member, and a reinforcing member. An air duct is provided in the housing member. The driving member is arranged in the air duct. The driving member has an output shaft. The fan blade member is sleeved on the output shaft. The reinforcing member is sleeved on the output shaft, and the reinforcing member is connected to the fan blade member. The rotating reinforcing member can drive the fan blade member to rotate. Among them, the driving member can drive the output shaft to rotate, so as to drive the fan blade member and the reinforcing member to rotate. The rotating fan blade member can drive the air flow in the air duct.

[0005] A duct fan according to an embodiment of the utility model has at least one of the following beneficial effects:

[0006] The reinforcing member of the duct fan in the embodiment of the utility model can rotate and drive the fan blade member connected thereto to rotate. For this structure, if the phenomenon of slipping teeth (or the fan blade member rotating relative to the output shaft) occurs in the duct fan, the following conditions need to be met simultaneously: 1. Wear appears at the connection part of the fan blade member corresponding to the output shaft; 2. Wear appears at the connection part of the reinforcing member corresponding to the output shaft. Therefore, compared with the traditional duct fan described in the background art (where the phenomenon of slipping teeth occurs only due to wear at the connection part of the fan blade member corresponding to the output shaft), the probability of the occurrence of slipping teeth of this duct fan is lower. In other words, compared with the traditional duct fan, the setting of the above reinforcing member can reduce the probability of the occurrence of slipping teeth, so as to extend the service life of the duct fan.

[0007] According to some embodiments of the present utility model, the reinforcing member is detachably connected to the fan blade member.

[0008] According to some embodiments of the present utility model, the fan blade member is provided with an installation groove, the cross-section of the installation groove is non-circular, the installation groove cooperates with the reinforcing member, and the reinforcing member is inserted into the installation groove.

[0009] According to some embodiments of the present utility model, at least two insertion blocks are provided on one of the reinforcing member and the fan blade member, at least two insertion holes are provided on the other, and at least two of the insertion blocks are correspondingly inserted into at least two of the insertion holes.

[0010] According to some embodiments of the present utility model, the fan blade member is provided with a shielding member, and the shielding member covers the reinforcing member.

[0011] According to some embodiments of the present utility model, the fan blade member includes a fan barrel portion and a fan blade portion provided on the outer barrel wall of the fan barrel portion. The fan barrel portion is provided with a mounting piece, the mounting piece is sleeved on the output shaft, and both the shielding member and the reinforcing member are connected to one side of the mounting piece.

[0012] According to some embodiments of the present utility model, the mounting piece is provided with at least two through holes. The through holes include a first hole section and a second hole section that are communicated. The first hole section and the second hole section are sequentially arranged around the axis of the mounting piece. The shielding member is provided with at least two plug-in blocks, and the plug-in blocks are provided with anti-disengagement portions. At least two of the plug-in blocks are correspondingly inserted through at least two of the through holes. The shielding member can rotate relative to the mounting piece to move the plug-in blocks to the first hole section or the second hole section. Among them, when the plug-in blocks move to the first hole section, the anti-disengagement portions are located on the other side of the mounting piece to limit the shielding member from disengaging along the axis of the mounting piece. When the plug-in blocks move to the second hole section, the anti-disengagement portions can move away from the other side of the mounting piece through the corresponding second hole sections along the axis of the mounting piece, so that the shielding member and the fan blade member are separated.

[0013] According to some embodiments of the present utility model, one of the other side of the mounting piece and the anti-disengagement portion is provided with a positioning block, and the other is provided with a positioning notch. Among them, when the plug-in blocks move to the first hole section, at least two of the positioning blocks are correspondingly arranged in at least two of the positioning notches to limit the rotation of the plug-in blocks away from the first hole section.

[0014] According to some embodiments of the present utility model, the housing member is provided with a receiving cavity for placing a terminal block. The receiving cavity has an opening, and the housing member is rotatably connected with a flip cover, and the flip cover can rotate to open or close the opening.

[0015] According to some embodiments of the present utility model, one of the housing member and the flip cover is provided with a clamping block, and the other is provided with a buckling hole. When the flip cover rotates to close the open end, the clamping block is clamped in the buckling hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a structural diagram of an embodiment of a duct fan of the present utility model;

[0018] Figure 2 is Figure 1 a partial exploded view of the duct fan shown in ;

[0019] Figure 3 is Figure 2 a partial enlarged view of part A shown in ;

[0020] Figure 4 is Figure 2 a structural diagram of a fan blade member and a shielding member shown in ;

[0021] Figure 5 is Figure 2 an exploded view of the fan blade member and the shielding member shown in.

[0022] Reference numerals:

[0023] Housing member 100, first housing 110, second housing 120, accommodation cavity 121, clamping block 122, third housing 130;

[0024] Drive member 200, output shaft 210;

[0025] Fan blade member 300, fan cylinder portion 310, mounting piece 311, mounting groove 311A, insertion hole 311B, through hole 311C, first hole section 311C1, second hole section 311C2, positioning block 311D, fan blade portion 320;

[0026] Reinforcing member 400, insertion block 410;

[0027] Air duct 500;

[0028] Shielding member 600, plug-in block 610, anti-detachment portion 611, positioning notch 611A;

[0029] Flip cover 700, buckling hole 710;

[0030] Fastener 810, gasket 820. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0032] In the description of the present utility model, if the terms such as first, second, third, fourth, fifth, etc. are described, they are only used for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0033] In the description of the present utility model, it should be understood that for the orientation description, such as up, down, front, back, left, right, etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model.

[0034] In the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense. For example, it can be directly connected, or indirectly connected through an intermediate medium; it can be fixedly connected, or detachably connected, or integrally formed; it can be mechanically connected; it can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meaning of the above terms in the present utility model in combination with the specific content of the technical solution.

[0035] Refer to Figures 1 to 5 , an embodiment of a duct fan of the present utility model includes a housing member 100, a driving member 200, a fan blade member 300, and a reinforcing member 400.

[0036] An air passage 500 is provided inside the housing member 100. The driving member 200 is arranged in the air passage 500. The driving member 200 has an output shaft 210. The fan blade member 300 is sleeved on the output shaft 210. The reinforcing member 400 is sleeved on the output shaft 210, and the reinforcing member 400 is connected to the fan blade member 300. The rotating reinforcing member 400 can drive the fan blade member 300 to rotate. Among them, the driving member 200 is a motor, and the driving member 200 can drive the output shaft 210 to rotate, so as to drive the fan blade member 300 and the reinforcing member 400 to rotate. The rotating fan blade member 300 can drive the air in the air passage 500 to flow.

[0037] It can be understood that when the connection part of the fan blade member 300 corresponding to the output shaft 210 is worn, the driving member 200 drives the reinforcing member 400 to rotate through the output shaft 210, and the rotating reinforcing member 400 will also drive the fan blade member 300 to rotate, thereby avoiding the phenomenon of slipping teeth (or the fan blade member 300 rotating relative to the output shaft 210).

[0038] With the above structure, if the phenomenon of slipping teeth (or the fan blade member 300 rotating relative to the output shaft 210) occurs in this duct fan, the following conditions need to be met simultaneously: 1. The connection part of the fan blade member 300 corresponding to the output shaft 210 is worn; 2. The connection part of the reinforcing member 400 corresponding to the output shaft 210 is worn. Therefore, compared with the traditional duct fan described in the background technology (where the phenomenon of slipping teeth occurs only due to the wear of the connection part of the fan blade member 300 corresponding to the output shaft 210), the probability of the occurrence of the slipping teeth phenomenon of this duct fan is lower. In other words, compared with the traditional duct fan, the setting of the above-mentioned reinforcing member 400 can reduce the probability of the occurrence of the slipping teeth phenomenon, so as to extend the service life of the duct fan.

[0039] The housing member 100 includes a first housing 110, a second housing 120, and a third housing 130.

[0040] Referring to Figure 1 and Figure 2 , the first housing 110, the second housing 120, and the third housing 130 are sequentially connected from front to back. The first housing 110, the second housing 120, and the third housing 130 are all of hollow structure, and the inner cavities of the first housing 110, the second housing 120, and the third housing 130 are sequentially communicated to form the above-mentioned air duct 500. The driving member 200 is arranged in the second housing 120.

[0041] In this embodiment, the first housing 110, the second housing 120, and the third housing 130 are sequentially detachably connected by screwing.

[0042] In some embodiments, the first housing 110, the second housing 120, and the third housing 130 are sequentially detachably connected by providing corresponding snap-fit structures.

[0043] In this embodiment, referring to Figure 2 and Figure 3 , the fan blade member 300 includes a fan cylinder part 310 and a fan blade part 320 provided on the outer cylindrical wall of the fan cylinder part 310. The fan cylinder part 310 is provided with a mounting piece 311, the mounting piece 311 is sleeved on the output shaft 210, and the reinforcing member 400 is detachably connected to the front side of the mounting piece 311.

[0044] With the above structure, the reinforcing member 400 is detachably connected to the fan blade member 300, so as to facilitate the replacement of the damaged reinforcing member 400 on the fan blade member 300.

[0045] The mounting piece 311 is sleeved on the output shaft 210, and the reinforcing member 400 is sleeved on the output shaft 210. Specifically, referring to Figure 2 , the mounting piece 311 and the reinforcing member 400 are sequentially and slidably sleeved on the output shaft 210. The output shaft 210 is provided with an abutting portion (not shown in the figure), and the abutting portion abuts against the rear side of the mounting piece 311. The output shaft 210 is threadedly connected with a fastener 810, and the fastener 810 abuts against the front side of the reinforcing member 400 to limit the axial sliding of the mounting piece 311 and the reinforcing member 400 along the output shaft 210 during rotation. Among them, the fastener 810 is set as a nut member.

[0046] In this embodiment, a gasket 820 is sleeved on the output shaft 210, and the gasket 820 is located between the fastener 810 and the reinforcing member 400.

[0047] It can be understood that the fastener 810 indirectly abuts against the reinforcing member 400 through the gasket 820. Through the above structure, the setting of the gasket 820 can increase the abutting area between the fastener 810 and the reinforcing member 400, so as to improve the limiting effect.

[0048] In some embodiments, the mounting piece 311 is sleeved on the output shaft 210, and the reinforcing member 400 is sleeved on the output shaft 210. Specifically, both the mounting piece 311 and the reinforcing member 400 are press-fitted on the output shaft 210.

[0049] The reinforcing member 400 is detachably connected to the front side of the mounting piece 311. Specifically, referring to Figure 3 , the front side of the mounting piece 311 is provided with a mounting groove 311A, and the cross-section of the mounting groove 311A is rectangular. The mounting groove 311A cooperates with the reinforcing member 400, and the reinforcing member 400 is inserted into the mounting groove 311A.

[0050] In some embodiments, the cross-section of the mounting groove 311A is pentagonal, and the mounting groove 311A cooperates with the reinforcing member 400.

[0051] To improve the connection strength between the reinforcing member 400 and the fan blade member 300, referring to Figure 3 , the reinforcing member 400 is provided with two insertion blocks 410, and the front side of the mounting piece 311 is provided with two insertion holes 311B. The two insertion blocks 410 are correspondingly inserted into the two insertion holes 311B one by one.

[0052] In some embodiments, the reinforcing member 400 is provided with three insertion holes 311B, and the front side of the mounting piece 311 is provided with three insertion blocks 410. The three insertion blocks 410 are correspondingly inserted into the three insertion holes 311B one by one.

[0053] In some embodiments, the reinforcing member 400 is detachably connected to the front side of the mounting piece 311. Specifically, the reinforcing member 400 is provided with two insertion blocks 410, and the front side of the mounting piece 311 is provided with two insertion holes 311B, and the two insertion blocks 410 are respectively inserted into the two insertion holes 311B in a one-to-one correspondence.

[0054] In this embodiment, referring to Figure 1 , Figure 2 and Figure 4 , a shielding member 600 is provided on the front side of the mounting piece 311, and the shielding member 600 covers the reinforcing member 400.

[0055] It can be understood that the shielding member 600 is located on the front side of the fastener 810, and the shielding member 600 covers the fastener 810, the gasket 820 and the reinforcing member 400 at the same time, so as to protect the fastener 810, the gasket 820 and the reinforcing member 400 in the air passage 500 and reduce the damage to the fastener 810, the gasket 820 and the reinforcing member 400 from the outside.

[0056] A shielding member 600 is provided on the front side of the mounting piece 311. Specifically, referring to Figure 3 , Figure 4 and Figure 5 , the mounting piece 311 is provided with three through holes 311C. The through holes 311C include a first hole section 311C1 and a second hole section 311C2 that are communicated. The first hole section 311C1 and the second hole section 311C2 are arranged in sequence around the axis of the mounting piece 311. The shielding member 600 is provided with three insertion blocks 610. The insertion blocks 610 are provided with anti-disengagement portions 611. The three insertion blocks 610 are respectively inserted through the three through holes 311C in a one-to-one correspondence. The shielding member 600 can rotate relative to the mounting piece 311, so that the insertion blocks 610 move to the first hole section 311C1 or the second hole section 311C2.

[0057] When the insertion block 610 moves to the first hole section 311C1, the anti-disengagement portion 611 is located on the rear side of the mounting piece 311 to limit the shielding member 600 from disengaging along the axis of the mounting piece 311.

[0058] When the insertion block 610 moves to the second hole section 311C2, the anti-disengagement portion 611 can move away from the rear side of the mounting piece 311 along the axis of the mounting piece 311 through the corresponding second hole section 311C2, so that the shielding member 600 is separated from the fan blade member 300.

[0059] Through the above structure, the detachable connection between the shielding member 600 and the fan blade member 300 can be realized.

[0060] In order to limit the insertion block 610 rotated to the first hole section 311C1 from moving to the second hole section 311C2, so as to reduce the probability of the shielding member 600 disengaging from the fan blade member 300, referring to Figure 4 and Figure 5, a positioning block 311D is provided at the rear side of the mounting piece 311, and a positioning notch 611A is provided on the anti-disengagement part 611. When the insertion block 610 moves to the first hole section 311C1, the three positioning blocks 311D are respectively arranged in the three positioning notches 611A to limit the rotation and displacement of the insertion block 610 from the first hole section 311C1.

[0061] In summary, the steps for the user to install the shielding piece 600 on the fan blade piece 300 are as follows: 1. Insert the three insertion blocks 610 into the three second hole sections 311C2 respectively, so that the anti-disengagement part 611 is located at the rear side of the mounting piece 311; 2. Rotate the shielding piece 600 relative to the fan blade piece 300, so that the three insertion blocks 610 respectively move to the three first hole sections 311C1, and the three positioning blocks 311D are respectively arranged in the three positioning notches 611A.

[0062] In summary, the steps for the user to detach the shielding piece 600 from the fan blade piece 300 are as follows: 1. Rotate the shielding piece 600 relative to the fan blade piece 300, so that the three positioning blocks 311D respectively disengage from the three positioning notches 611A, and the three insertion blocks 610 located in the first hole section 311C1 respectively move to the three second hole sections 311C2; 2. Drive the shielding piece 600 to move forward along the axis of the mounting piece 311, so that the anti-disengagement part 611 moves through the corresponding second hole section 311C2, so that the shielding piece 600 and the fan blade piece 300 are separated.

[0063] In this embodiment, referring to Figure 2 , the second housing 120 is provided with a receiving cavity 121 for placing the wiring terminal. The receiving cavity 121 has an opening. The housing part 100 is rotatably connected with a flip cover 700, and the flip cover 700 can be rotated to open or close the opening.

[0064] In order to enable the flip cover 700 to maintain the state of closing the opening, referring to Figure 1 and Figure 2 , the second housing 120 is provided with a clamping block 122, and the flip cover 700 is provided with a buckling hole 710. When the flip cover 700 rotates to close the opening, the clamping block 122 is clamped in the buckling hole 710.

[0065] In some embodiments, the flip cover 700 is provided with a clamping block 122, and the second housing 120 is provided with a buckling hole 710. When the flip cover 700 rotates to close the opening, the clamping block 122 is clamped in the buckling hole 710.

[0066] Certainly, the present invention is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A duct fan, characterized in that: include A housing (100) having an air passage (500) therein; A driving member (200) is disposed in the air passage (500), and the driving member (200) has an output shaft (210); A fan blade member (300) is sleeved on the output shaft (210); The reinforcing member (400) is sleeved on the output shaft (210), and the reinforcing member (400) is connected to the fan blade member (300). The rotating reinforcing member (400) can drive the fan blade member (300) to rotate, wherein: The driving member (200) can drive the output shaft (210) to rotate, so as to drive the fan blade member (300) and the reinforcement member (400) to rotate, and the rotating fan blade member (300) can drive the air in the air passage (500) to flow.

2. A duct fan according to claim 1, characterized in that: The reinforcement member (400) is detachably connected to the fan blade member (300).

3. A duct fan according to claim 2, characterized in that: The fan blade member (300) is provided with a mounting groove (311A), the cross section of the mounting groove (311A) is non-circular, the mounting groove (311A) cooperates with the reinforcement member (400), and the reinforcement member (400) is inserted into the mounting groove (311A).

4. A duct fan according to claim 2 or 3, characterized in that: One of the reinforcement member (400) and the fan blade member (300) is provided with at least two plug blocks (410), and the other is provided with at least two insertion holes (311B), and the at least two insertion blocks (410) are inserted into the at least two insertion holes (311B) in a one-to-one correspondence.

5. The duct fan according to claim 1, characterized in that: The fan blade member (300) is provided with a shielding member (600), and the shielding member (600) is covered on the reinforcing member (400).

6. A duct fan according to claim 5, characterized in that: The fan blade member (300) comprises a fan barrel portion (310) and a fan blade portion (320) arranged on the outer barrel wall of the fan barrel portion (310); the fan barrel portion (310) is provided with a mounting plate (311), the mounting plate (311) is sleeved on the output shaft (210), and the shielding member (600) and the reinforcing member (400) are both connected to one side of the mounting plate (311).

7. A duct fan according to claim 6, characterized in that: The mounting plate (311) is provided with at least two through holes (311C), the through hole (311C) comprises a first hole section (311C1) and a second hole section (311C2) which are connected, the first hole section (311C1) and the second hole section (311C2) are arranged in sequence around the axis of the mounting plate (311), the shielding member (600) is provided with at least two plug-in blocks (610), the plug-in blocks (610) are provided with an anti-slip portion (611), at least two of the plug-in blocks (610) are correspondingly passed through at least two of the through holes (311C), the shielding member (600) can rotate relative to the mounting plate (311) to move the plug-in blocks (610) to the first hole section (311C1) or the second hole section (311C2), wherein: When the plug-in block (610) moves to the first hole section (311C1), the anti-detachment portion (611) is located on the other side of the mounting plate (311) to limit the shielding member (600) from detaching along the axis of the mounting plate (311). When the plug-in block (610) moves to the second hole section (311C2), the anti-detachment portion (611) can move away from the other side of the mounting plate (311) along the axis of the mounting plate (311) through the corresponding second hole section (311C2), thereby separating the shielding member (600) and the fan blade member (300).

8. A duct fan according to claim 7, characterized in that: One of the other side of the mounting plate (311) and the anti-detachment portion (611) is provided with a positioning block (311D), and the other is provided with a positioning notch (611A), wherein: When the plug-in block (610) moves to the first hole section (311C1), at least two positioning blocks (311D) are arranged in a one-to-one correspondence at at least two positioning notches (611A) to limit the plug-in block (610) from rotating away from the first hole section (311C1).

9. The duct fan according to claim 1, characterized in that: The housing (100) is provided with a receiving cavity (121) for placing a connection terminal, the receiving cavity (121) has an opening, and the housing (100) is rotatably connected to a flip cover (700), and the flip cover (700) can be rotated to open or close the opening.

10. A duct fan according to claim 9, characterized in that: One of the housing (100) and the flip cover (700) is provided with a clamping block (122), and the other is provided with a buckle hole (710); when the flip cover (700) is rotated to close the opening, the clamping block (122) is clamped in the buckle hole (710).

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