Fan air guide assembly

Abstract

The utility model provides an air guide assembly of a fan, and belongs to the technical field of machinery. The wind scooper solves the problem that a dust filter screen of an existing wind scooper is inconvenient to clean. The fan air guide assembly comprises an air inlet cylinder, an air guide cylinder and an air outlet cylinder which are sequentially distributed from front to back, the air guide cylinder and the air outlet cylinder are communicated through a rubber cylinder arranged between the air guide cylinder and the air outlet cylinder, the front end of the air guide cylinder is connected to the rear end of the air inlet cylinder in a sleeving mode, a through hole penetrates through the side wall of the front end of the air guide cylinder in the radial direction, and a threaded hole is correspondingly formed in the air inlet cylinder; the air guide cylinder is detachably and fixedly connected with the air inlet cylinder through a screw of which the rod part penetrates through the through hole and is screwed into the threaded hole; an annular limiting seat is formed on the inner wall of the air guide barrel, a filter plate is arranged in the front end of the air guide barrel, the edge of the filter plate is clamped and positioned between the rear end face of the air inlet barrel and the limiting seat, and filter holes penetrating front and back are densely distributed in the middle of the filter plate. According to the fan air guide assembly, the filter plate is convenient to clean.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a fan, in particular to an air guide component of a fan. Background Art

[0002] When there is a certain distance between the installation position of the fan and the position of the component to be cooled, an air guide cover is generally provided at the air outlet of the fan to guide the wind generated by the fan to the component to be cooled.

[0003] Among them, the above-mentioned air guide cover structure is such as a dust removal and noise reduction air guide cover for a ventilator disclosed in the Chinese Patent Library (application number: 202021292567.8), which includes a tube body and a head cover, a support column is installed on the inner wall of the tube body, an inner lining is fixed on the inner side of the support column, a sponge layer is installed on the inner wall of the lining, and fixed blocks are installed on the upper and lower sides of the inner wall of the sponge layer, a dust filter is provided on one side of the fixed block, and one side of the dust filter is installed in cooperation with the card slot, and the card slot is opened on one side surface of the fixed block, a card block is provided on one side of the tube body, and a jack is opened on the surface of the card block, the head cover is installed on the other side of the tube body, a groove is opened on the surface of the groove, and a pin passes through the surface of the groove, telescopic rods are installed on the upper and lower sides of the inside of the head cover, a splint is installed on the inner side of the telescopic rod, and the outer wall of the splint is connected to the inner wall of the head cover through a sealing ring.

[0004] The above-mentioned air guide cover uses a dust filter set in the tube body to remove dust. When the dust filter is covered with a lot of dust and needs to be processed, it is necessary to disconnect the connections at both ends of the tube body at the same time and then take out the dust filter. The whole operation steps are relatively complex and inconvenient. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a fan air guide assembly which is convenient for cleaning the filter plate.

[0006] The objectives of the utility model can be achieved through the following technical solutions: a fan air guide assembly, comprising an air inlet tube, an air guide tube and an air outlet tube distributed in sequence from front to back, characterized in that the air guide tube and the air outlet tube are connected by a rubber tube arranged therebetween, and the two ends of the rubber tube are respectively fixedly connected to the air guide tube and the air outlet tube; the front end of the air guide tube is sleeved on the rear end of the air inlet tube, and a through hole is radially penetrated on the side wall of the front end of the air guide tube, and the air inlet tube is correspondingly provided with a threaded hole, and the air guide tube is detachably fixed to the air inlet tube by a screw that passes through the through hole and is screwed into the threaded hole; an annular limit seat is formed on the inner wall of the air guide tube, and a filter plate is arranged in the front end of the air guide tube, and the edge of the filter plate is clamped and positioned between the rear end face of the air inlet tube and the limit seat, and the middle part of the filter plate is densely covered with filter holes arranged front to back.

[0007] The air guide tube and the air outlet tube are connected by a rubber tube so that the air guide tube can overcome the elastic force of the rubber tube and move forward and backward. At the same time, the filter plate is clamped between the limit seat and the air inlet tube by its edge to be positioned. In this way, after removing the screws and moving the air guide tube, a certain gap is formed to take out the filter plate for cleaning or replacement. The whole process does not require disassembly and assembly of the air inlet tube and the air outlet tube, and has fewer steps. It has the advantages of convenience and ease of use.

[0008] In the above-mentioned fan air guide assembly, a circle of guide pillars is formed on the front edge of the above-mentioned filter plate, and the axis of the guide pillars extends forward and backward. A plug hole matching the guide pillars is opened on the rear end surface of the air inlet tube. The number of plug holes and guide pillars is the same and the positions are one-to-one corresponding. Each guide pillar is clamped in the corresponding plug hole. With the cooperation of the guide pillars and the plug holes, a pre-connection is formed between the filter plate and the air inlet tube, so that the filter plate can be exposed after the air guide tube is moved backward, which further facilitates the cleaning or replacement of the filter plate.

[0009] In the above-mentioned fan air guide assembly, a gripping groove is provided on the outer wall of the filter plate, and the gripping groove is annular and coaxial with the filter plate. The gripping groove is provided so that the operator can more easily grip the filter plate and pull it away from the air inlet tube, further facilitating the disassembly and assembly of the filter plate.

[0010] In the above-mentioned fan air guide assembly, an annular flange is formed on the rear end outer wall of the air inlet tube, and the rear end faces of the annular flange and the air inlet tube are arranged flush, the outer side of the annular flange is attached to the front end inner wall of the air guide tube, and the above-mentioned threaded hole is arranged on the annular flange. The annular flange is arranged to thicken the front end side wall of the air inlet tube, so that the connection between the air inlet tube and the air guide tube and the positioning of the filter plate are more stable.

[0011] In the above-mentioned fan air guide assembly, a conical guide surface is formed on the inner wall of the front end of the air guide tube, the diameter of the guide surface gradually decreases from front to back, and the front side of the guide surface extends to the front end surface of the air guide tube. The guide surface is provided to guide the installation, so that the air guide tube can be smoothly inserted into the rear end of the air inlet tube.

[0012] In the above-mentioned fan air guide assembly, the two ends of the rubber tube are respectively inserted into the air guide tube and the air outlet tube, and the outer wall of the rubber tube is in contact and sealed with the inner wall of the air guide tube and the inner wall of the air outlet tube. The above-mentioned design facilitates the connection of the rubber tube with the air guide tube and the air outlet tube.

[0013] In the above-mentioned fan air guide assembly, both ends of the rubber tube are bonded and fixedly connected to the air guide tube and the air outlet tube.

[0014] In the above-mentioned fan air guide assembly, an annular groove is formed on the inner side wall of the air guide tube and the air outlet tube, and an annular protrusion matching the annular groove is formed on the outer wall of both ends of the rubber tube, and the two annular protrusions are respectively inserted into the two annular grooves. With the cooperation of the annular protrusion and the annular groove, the rubber tube is further limited in the axial direction, which effectively enhances the stability and strength of the connection between the rubber tube and the air guide tube and the air outlet tube, and ensures the stable operation of the air guide assembly.

[0015] In the above-mentioned fan air guide assembly, the front end surface of the rubber tube is pressed against the rear end surface of the limit seat, which is used for the rubber tube to be inserted and limited, thereby facilitating assembly.

[0016] In the present application, the limit seat is used for limiting the rubber cylinder and the filter plate at the same time, achieving a dual purpose effect, simplifying the structure and further facilitating assembly.

[0017] In the above-mentioned fan air guide assembly, an annular positioning seat is formed on the inner wall of the air outlet tube, the positioning seat is coaxially arranged with the air outlet tube, and the rear end surface of the rubber tube is pressed on the front end surface of the positioning seat to further facilitate the installation of the rubber tube.

[0018] Compared with the prior art, the fan air guide assembly has the following advantages:

[0019] 1. The air guide tube and the air outlet tube are connected by a rubber tube so that the air guide tube can overcome the elastic force of the rubber tube and move forward and backward. At the same time, the filter plate is clamped between the limit seat and the air inlet tube by its edge. In this way, after removing the screws and moving the air guide tube, a certain gap is formed to take out the filter plate for cleaning or replacement. The whole process does not require disassembly of the air inlet tube and the air outlet tube, and the steps are relatively few. It has the advantages of being easy and convenient to use.

[0020] 2. With the cooperation of the guide column and the socket, a pre-connection is formed between the filter plate and the air inlet tube, so that the filter plate can be exposed after the air guide tube is moved back, which further facilitates the cleaning or replacement of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic diagram of the air guide assembly of the fan.

[0022] Figure 2 yes Figure 1 A magnified schematic diagram of center A.

[0023] Figure 3 It is a three-dimensional schematic diagram of the air inlet duct.

[0024] In the figure, 1, air inlet tube; 1a, annular flange; 1b, convex block; 1c, threaded hole; 2, air guide tube; 2a, limit seat; 2b, guide surface; 3, air outlet tube; 3a, positioning seat; 4, rubber tube; 4a, annular convex head; 5, screw; 6, filter plate; 6a, guide column; 6b, holding groove; 6c, filter hole. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] like Figure 1As shown, the fan air guide assembly includes an air inlet tube 1, an air guide tube 2 and an air outlet tube 3 which are sequentially distributed from front to back.

[0027] in,

[0028] The inner cavity of the air guide tube 2 and the inner cavity of the air outlet tube 3 are connected through a rubber tube 4 arranged therebetween, and the two ends of the rubber tube 4 are respectively fixedly connected to the air guide tube 2 and the air outlet tube 3. The front end of the air guide tube 2 is sleeved on the rear end of the air inlet tube 1, and at this time, the inner side wall of the front end of the air guide tube 2 is in contact with the outer side wall of the rear end of the air inlet tube 1. A through hole is radially penetrated on the side wall of the front end of the air guide tube 2, and a threaded hole 1c is correspondingly arranged on the air inlet tube 1, and the air guide tube 2 is detachably fixedly connected to the air inlet tube 1 by a screw 5 through which a rod passes through the through hole and is screwed into the threaded hole 1c. It is preferred that there are at least two through holes and they are evenly distributed along the circumference of the air guide tube 2, and the threaded holes 1c, the screws 5 and the through holes are the same in number and the positions correspond one to one, so as to enhance the stability of the connection between the air inlet tube 1 and the air guide tube 2.

[0029] like Figure 1 and Figure 2 As shown, an annular stopper 2a is formed on the inner wall of the air guide tube 2, and the stopper 2a and the air guide tube 2 are coaxially arranged. A filter plate 6 is arranged inside the front end of the air guide tube 2, and the edge of the filter plate 6 is clamped and positioned between the rear end face of the air inlet tube 1 and the stopper 2a. At this time, the front edge and the rear edge of the filter plate 6 are respectively pressed against the rear end face of the air inlet tube 1 and the front end face of the stopper 2a. The middle part of the filter plate 6 is densely covered with filter holes 6c arranged in a front-to-back manner for air intake filtration.

[0030] The air guide tube 2 and the air outlet tube 3 are connected by the rubber tube 4 so that the air guide tube 2 can overcome the elastic force of the rubber tube 4 and move forward and backward. At the same time, the filter plate 6 is clamped between the limit seat 2a and the air inlet tube 1 by its edge to be positioned. In this way, after removing the screws 5 and moving the air guide tube 2, a certain gap is formed to take out the filter plate 6 for cleaning or replacement. The whole process does not require disassembly and assembly of the air inlet tube 1 and the air outlet tube 3, and has fewer steps. It has the advantages of convenience and ease of use.

[0031] Further explanation, such as Figure 2 As shown, a circle of guide pillars 6a is formed on the front edge of the filter plate 6, and the axis of the guide pillars 6a extends forward and backward. Preferably, the guide pillars 6a and the filter plate 6 are of an integrated structure. A plug hole matching the guide pillars 6a is provided on the rear end surface of the air inlet cylinder 1. The number of the plug holes and the guide pillars 6a are the same and the positions correspond one to one. Each guide pillar 6a is snapped into the corresponding plug hole. With the cooperation of the guide pillars 6a and the plug hole, a pre-connection is formed between the filter plate 6 and the air inlet cylinder 1, so that the filter plate 6 can be exposed after the air guide cylinder 2 is moved backward, which further facilitates the cleaning or replacement of the filter plate 6.

[0032] In the actual product, a gripping groove 6b is provided on the outer wall of the filter plate 6, and the gripping groove 6b is annular and coaxial with the filter plate 6. The gripping groove 6b is provided so that the operator can more easily grip the filter plate 6 and pull it away from the air inlet tube 1, further facilitating the disassembly and assembly of the filter plate 6.

[0033] like Figures 1 to 3 As shown, an annular flange 1a is formed on the outer wall of the rear end of the air inlet tube 1. The annular flange 1a and the air inlet tube 1 are coaxial, and the rear end faces of the annular flange 1a and the air inlet tube 1 are flush. The outer side surface of the annular flange 1a is attached to the inner wall of the front end of the air guide tube 2, and the above-mentioned threaded hole 1c is provided on the annular flange 1a. The annular flange 1a is provided to thicken the front end side wall of the air inlet tube 1, so that the connection between the air inlet tube 1 and the air guide tube 2 and the positioning of the filter plate 6 are more stable. Further explanation: a conical guide surface 2b is formed on the inner wall of the front end of the air guide tube 2, the diameter of the guide surface 2b gradually decreases from front to back, and the front side of the guide surface 2b extends to the front end face of the air guide tube 2. The guide surface 2b is provided to serve as an installation guide, so that the air guide tube 2 can be smoothly inserted into the rear end of the air inlet tube 1.

[0034] In this embodiment, the rubber tube 4 is installed as follows: the two ends of the rubber tube 4 are respectively inserted into the air guide tube 2 and the air outlet tube 3, and the outer side walls of the rubber tube 4 are in contact and sealed with the inner side walls of the air guide tube 2 and the inner side walls of the air outlet tube 3. Both ends of the rubber tube 4 are bonded and fixedly connected with the air guide tube 2 and the air outlet tube 3. Further explanation: annular grooves are formed on the inner side walls of the air guide tube 2 and the air outlet tube 3, and annular bosses 4a matching the annular grooves are formed on the outer walls of both ends of the rubber tube 4, and the two annular bosses 4a are respectively inserted into the two annular grooves. With the cooperation of the annular bosses 4a and the annular grooves, the rubber tube 4 is further limited in the axial direction, which effectively enhances the stability and strength of the connection between the rubber tube 4 and the air guide tube 2 and the air outlet tube 3, and ensures the stable operation of the air guide assembly. Preferably, the axial cross-sections of the annular bosses 4a and the annular grooves are both arc-shaped.

[0035] Furthermore, the front end face of the rubber tube 4 is pressed on the rear end face of the limiting seat 2a, which is used for the rubber tube 4 to be inserted and limited, and is convenient for assembly. In the present application, the limiting seat 2a is used for limiting the rubber tube 4 and the filter plate 6 at the same time, which has a dual-purpose effect, and simplifies the structure while further facilitating assembly. An annular positioning seat 3a is formed on the inner side wall of the air outlet 3, and the positioning seat 3a is coaxially arranged with the air outlet 3, and the rear end face of the rubber tube 4 is pressed on the front end face of the positioning seat 3a, so as to further facilitate the installation of the rubber tube 4.

[0036] In actual products, such as Figure 3 As shown, a circle of protrusions 1b is formed on the outer wall of the front end of the air inlet tube 1, and a bolt hole axially penetrates the protrusion 1b to facilitate the connection between the air inlet tube 1 and the fan; an internal thread is provided in the rear end of the air outlet tube 3.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A fan air guide assembly, comprising an air inlet duct (1), an air guide duct (2) and an air outlet duct (3) arranged in sequence from front to back, characterized in that: The air guide tube (2) and the air outlet tube (3) are connected via a rubber tube (4) arranged therebetween, and the two ends of the rubber tube (4) are respectively fixedly connected to the air guide tube (2) and the air outlet tube (3); the front end of the air guide tube (2) is sleeved on the rear end of the air inlet tube (1), a through hole is radially penetrated on the side wall of the front end of the air guide tube (2), and a threaded hole (1c) is correspondingly provided on the air inlet tube (1), and the air guide tube (2) is detachably fixedly connected to the air inlet tube (1) via a screw (5) whose rod passes through the through hole and is screwed into the threaded hole (1c); an annular limit seat (2a) is formed on the inner wall of the air guide tube (2), and a filter plate (6) is provided inside the front end of the air guide tube (2), the edge of the filter plate (6) is clamped and positioned between the rear end surface of the air inlet tube (1) and the limit seat (2a), and the middle of the filter plate (6) is densely covered with filter holes (6c) arranged in a front-to-back direction.

2. The fan air guide assembly according to claim 1, characterized in that: A circle of guide pillars (6a) is formed on the front edge of the filter plate (6), and the axis of the guide pillars (6a) extends forward and backward. A plug hole matching the guide pillars (6a) is provided on the rear end surface of the air inlet tube (1). The plug holes and guide pillars (6a) are the same in number and have corresponding positions. Each guide pillar (6a) is snap-fitted into the corresponding plug hole.

3. The fan air guide assembly according to claim 2, characterized in that: A holding groove (6b) is provided on the outer side wall of the filter plate (6), and the holding groove (6b) is in the shape of a ring coaxial with the filter plate (6).

4. The fan air guide assembly according to claim 1, 2 or 3, characterized in that: An annular flange (1a) is formed on the rear end outer wall of the air inlet tube (1), and the rear end surfaces of the annular flange (1a) and the air inlet tube (1) are arranged flush, the outer side surface of the annular flange (1a) is attached to the front end inner wall of the air guide tube (2), and the threaded hole (1c) is arranged on the annular flange (1a).

5. The fan air guide assembly according to claim 4, characterized in that: A conical guide surface (2b) is formed on the inner wall of the front end of the air guide tube (2); the diameter of the guide surface (2b) gradually decreases from front to back, and the front side of the guide surface (2b) extends to the front end surface of the air guide tube (2).

6. The fan air guide assembly according to claim 1, characterized in that: The two ends of the rubber tube (4) are respectively inserted into the air guide tube (2) and the air outlet tube (3), and the outer wall of the rubber tube (4) is in contact and sealed with the inner wall of the air guide tube (2) and the inner wall of the air outlet tube (3).

7. The fan air guide assembly according to claim 6, characterized in that: Both ends of the rubber tube (4) are bonded and fixedly connected to the air guide tube (2) and the air outlet tube (3).

8. The fan air guide assembly according to claim 7, characterized in that: Annular grooves are formed on the inner side walls of the air guide tube (2) and the air outlet tube (3), and annular protrusions (4a) matching the annular grooves are formed on the outer walls at both ends of the rubber tube (4), and the two annular protrusions (4a) are respectively inserted into the two annular grooves.

9. The fan air guide assembly according to claim 6, 7 or 8, characterized in that: The front end surface of the rubber tube (4) is pressed against the rear end surface of the limit seat (2a).

10. The fan air guide assembly according to claim 9, characterized in that: An annular positioning seat (3a) is formed on the inner side wall of the air outlet cylinder (3); the positioning seat (3a) is coaxially arranged with the air outlet cylinder (3), and the rear end surface of the rubber cylinder (4) is pressed against the front end surface of the positioning seat (3a).

Images