Double-blade mute type fan

Abstract

The utility model discloses a double-blade silent fan, which relates to the field of fans and comprises a support rod, a support base is fixedly mounted at the lower end of the support rod, mounting threads are arranged on the lower side of the outer wall of the support rod, a movable extrusion component is mounted at the mounting threads, and the movable extrusion component consists of a threaded cylinder and an annular connecting piece. The annular connecting piece is installed at the lower end of the threaded cylinder, the fixed suction cup assembly is movably installed on the supporting base, and the fixed suction cup assembly is rotationally connected with the movable extrusion assembly at the same time. The movable extrusion assembly is matched with the fixed suction cup assembly, so that connection between the supporting base and the supporting face can be enhanced, vibration of the fan is reduced, meanwhile, frequent collision between the supporting base and the supporting face can be avoided when the fan vibrates, noise can be reduced, and finally the influence of fan operation noise on a user is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan field, especially a double-leaf silent fan. BACKGROUND

[0002] The double-leaf fan is a fan with unique design, which is mainly characterized by having one wheel of fan blades in front and back in operation, and the distance between the two rows of fan blades is large to ensure safety in use. This design enables the double-leaf fan to produce greater air volume and improve heat dissipation effect under the same noise level, meeting the needs of people in a hot environment. Compared with the traditional single-blade fan, the double-leaf fan has greater air volume, can blow air to a farther distance, and at the same time, promotes the circulation of indoor air and increases the air flow in the room. In addition, the double-leaf fan has lower noise when running, and adopts noise reduction technology, so that people can enjoy cool air in a more comfortable environment.

[0003] During operation of the traditional double-leaf fan, there is often a certain degree of vibration, which can cause slight contact and collision between the fan support base and the support surface (such as a table top or the ground). Especially in the case where the support surface is not flat, the intensity of the collision will be significantly enhanced, and the resulting noise will also be more obvious. This noise not only interferes with the user's auditory experience, but also constitutes a kind of noise pollution that cannot be ignored, affecting people's comfort and concentration, so a double-leaf silent fan is needed to solve the above problems. SUMMARY

[0004] The main purpose of the utility model is to provide a double-leaf silent fan, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] A double-leaf silent fan, comprising a support rod, a support base fixedly installed at the lower end of the support rod, a mounting thread provided on the lower side of the outer wall of the support rod, a mobile extrusion assembly installed at the mounting thread, the mobile extrusion assembly being composed of a threaded cylinder and a ring-shaped connecting piece, the ring-shaped connecting piece being installed at the lower end of the threaded cylinder, a fixed suction cup assembly movably installed on the support base, the fixed suction cup assembly being rotatably connected with the mobile extrusion assembly, the fixed suction cup assembly being composed of a mounting ring-shaped plate assembly, a suction cup body, a connecting rod, and a connecting ring, the suction cup body being annularly distributed at the lower end of the mounting ring-shaped plate assembly, the connecting rod being symmetrical and installed at the upper end of the mounting ring-shaped plate assembly, and the connecting ring being installed at the upper end of the four connecting rods.

[0007] Preferably, the upper end of the support rod is provided with a fan body, the fan body is provided with a shell, and two fan blades are arranged on the fan body and in the shell.

[0008] Preferably, four through grooves are symmetrically arranged on the support base and penetrate the support base from top to bottom.

[0009] Preferably, the mounting ring plate assembly and the suction disc body of the fixed suction disc assembly are arranged in the support base and are fixedly connected.

[0010] Preferably, the connecting rod of the fixed suction disc assembly is slidingly arranged in the through groove of the support base, the connecting ring is arranged above the support base, the connecting rod is fixedly connected with the mounting ring plate assembly and the connecting ring, and the upper end of the connecting ring is provided with an annular groove.

[0011] Preferably, the threaded cylinder and the annular connecting piece of the moving extrusion assembly are fixedly connected, the threaded cylinder is arranged on the mounting thread of the support rod, and the annular connecting piece is rotatably arranged in the annular groove of the upper end of the connecting ring.

[0012] Compared with the prior art, the utility model has the advantages of the following:

[0013] By arranging the moving extrusion assembly on the support rod and the fixed suction disc assembly on the support base and the moving extrusion assembly, the moving extrusion assembly and the fixed suction disc assembly are matched, the connection between the support base and the support surface is strengthened, the vibration of the fan is reduced, the frequent collision between the support base and the support surface when the fan vibrates is avoided, the generation of noise is reduced, and the influence of the noise generated by the operation of the fan on the user is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a bottom view of the overall structure of the utility model;

[0015] Figure 2 It is a top view of the overall structure of the utility model;

[0016] Figure 3 It is a structure schematic view of the shell after being split;

[0017] Figure 4 It is a bottom view of the fixed suction disc assembly and the moving extrusion assembly after being split;

[0018] Figure 5 It is a top view of the fixed suction disc assembly and the moving extrusion assembly after being split.

[0019] In the figure: 1, support rod; 2, support base; 3, mounting thread; 4, moving extrusion assembly; 5, fixed suction cup assembly; 6, through slot; 7, fan body; 8, shell; 9, fan blade; 10, mounting ring plate assembly; 11, suction cup body; 12, connecting rod; 13, connecting ring; 14, annular groove; 15, threaded cylinder; 16, annular connecting piece. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the following will further describe the present application in combination with specific embodiments.

[0021] In the description of the present application, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present application, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication between two elements inside. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a double-leaf silent fan, comprising a support rod 1, a support base 2 is fixedly installed at the lower end of the support rod 1, a mounting thread 3 is arranged on the lower side of the outer wall of the support rod 1, a moving extrusion assembly 4 is installed at the mounting thread 3, the moving extrusion assembly 4 is composed of a threaded cylinder 15 and an annular connecting piece 16, the annular connecting piece 16 is installed at the lower end of the threaded cylinder 15, a fixed suction disc assembly 5 is movably installed on the support base 2, the fixed suction disc assembly 5 is rotatably connected with the moving extrusion assembly 4, the fixed suction disc assembly 5 is composed of a mounting annular plate assembly 10, a suction disc body 11, a connecting rod 12 and a connecting ring 13, the suction disc body 11 is annularly distributed at the lower end of the mounting annular plate assembly 10, the connecting rod 12 is symmetrically installed at the upper end of the mounting annular plate assembly 10, the connecting ring 13 is installed at the upper end of the four connecting rods 12, a fan body 7 is installed at the upper end of the support rod 1, a shell 8 is installed on the fan body 7, two fan blades 9 are installed on the fan body 7 and in the shell 8, when the fan is used, the support base 2 of the fan can be placed on a smooth support surface, and the moving extrusion assembly 4 is rotated on the mounting thread 3, so as to push the fixed suction disc assembly 5 to move downward, and then the suction disc body 11 is adsorbed on the smooth support surface, and finally the connection between the support base 2 and the support surface is strengthened.

[0024] Finally, by arranging the moving extrusion assembly 4 on the support rod 1 and the fixed suction disc assembly 5 on the support base 2 and the moving extrusion assembly 4, the moving extrusion assembly 4 and the fixed suction disc assembly 5 are matched, the connection between the support base 2 and the support surface is strengthened, the vibration of the fan is reduced, the frequent collision between the support base 2 and the support surface when the fan vibrates is avoided, the generation of noise is reduced, and finally the influence of the noise generated by the operation of the fan on the user is reduced.

[0025] Specifically, four through grooves 6 are symmetrically arranged on the support base 2, the through grooves 6 pass through the support base 2 from top to bottom, the mounting annular plate assembly 10 and the suction disc body 11 on the fixed suction disc assembly 5 are located in the support base 2, the mounting annular plate assembly 10 and the suction disc body 11 are fixedly connected, the connecting rod 12 on the fixed suction disc assembly 5 is slidably installed in the through groove 6 arranged on the support base 2, the connecting ring 13 is located above the support base 2, the connecting rod 12 and the mounting annular plate assembly 10 and the connecting ring 13 are fixedly connected, the upper end of the connecting ring 13 is provided with an annular groove 14, when the fixed suction disc assembly 5 moves downward, the connecting rod 12 moves downward in the through groove 6 arranged on the support base 2, and finally with the continuous downward movement of the fixed suction disc assembly 5, the suction disc body 11 is adsorbed on the smooth support surface.

[0026] Specific, threaded cylinder 15 and annular connecting piece 16 on the mobile extrusion assembly 4 for fixed connection, threaded cylinder 15 is installed on the mounting thread 3 on the support rod 1, annular connecting piece 16 is rotatably mounted in the annular groove 14 opened in the upper end of connecting ring 13, when need to make the fixed chuck assembly 5 on the chuck body 11 adsorbed on the support surface, can be moved extrusion assembly 4 on the mounting thread 3 rotation, so that the mobile extrusion assembly 4 on the mounting thread 3 down, at this time because the fixed chuck assembly 5 is limited by the support base 2, and the fixed chuck assembly 5 and mobile extrusion assembly 4 for rotating connection, therefore with the mobile extrusion assembly 4 on the mounting thread 3 rotation, the fixed chuck assembly 5 will not rotate with the mobile extrusion assembly 4 together, but with the mobile extrusion assembly 4 on the mounting thread 3 down, the fixed chuck assembly 5 will be pushed down; conversely, when need to make the fixed chuck assembly 5 on the chuck body 11 and support surface from contact, can be moved extrusion assembly 4 on the mounting thread 3 reverse rotation, at this time the mobile extrusion assembly 4 will move on the mounting thread 3 up, at the same time, the mobile extrusion assembly 4 will take the fixed chuck assembly 5 up, finally the chuck body 11 will be in contact with the support surface, at this time the support base 2 and support surface between the fixed will also be removed.

[0027] The above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A dual-blade silent fan, comprising a support rod (1), wherein a support base (2) is fixedly installed at the lower end of the support rod (1), characterized in that: The lower side of the outer wall of the support rod (1) is provided with an installation thread (3). A movable extrusion assembly (4) is installed at the installation thread (3). The movable extrusion assembly (4) is composed of a threaded cylinder (15) and an annular connector (16). The annular connector (16) is installed at the lower end of the threaded cylinder (15). A fixed suction cup assembly (5) is movably installed on the support base (2). The fixed suction cup assembly (5) is rotatably connected to the movable extrusion assembly (4). The fixed suction cup assembly (5) is composed of an installation annular plate assembly (10), a suction cup body (11), a connecting rod (12), and a connecting ring (13). There are several suction cup bodies (11) arranged in a ring at the lower end of the installation annular plate assembly (10). There are four connecting rods (12) symmetrically installed at the upper end of the installation annular plate assembly (10). The connecting ring (13) is installed at the upper end of the four connecting rods (12).

2. The dual-blade silent fan according to claim 1, characterized in that: The upper end of the support rod (1) is equipped with a fan body (7), the fan body (7) is equipped with a shell (8), and two fan blades (9) are installed on the fan body (7) and inside the shell (8).

3. A dual-blade silent fan according to claim 2, characterized in that: The support base (2) has four through slots (6) symmetrically arranged on it, and the through slots (6) pass through the support base (2) from top to bottom.

4. A dual-blade silent fan according to claim 3, characterized in that: The mounting ring plate assembly (10) and the suction cup body (11) on the fixed suction cup assembly (5) are both located inside the support base (2), and the mounting ring plate assembly (10) and the suction cup body (11) are fixedly connected.

5. A dual-blade silent fan according to claim 4, characterized in that: The connecting rod (12) on the fixed suction cup assembly (5) is slidably installed in the through groove (6) opened on the support base (2). The connecting ring (13) is located above the support base (2). The connecting rod (12) is fixedly connected to the mounting ring plate assembly (10) and the connecting ring (13). The upper end of the connecting ring (13) is provided with an annular groove (14).

6. A dual-blade silent fan according to claim 5, characterized in that: The threaded cylinder (15) and the annular connector (16) on the movable extrusion assembly (4) are fixedly connected.

7. A dual-blade silent fan according to claim 6, characterized in that: The threaded cylinder (15) is installed on the mounting thread (3) on the support rod (1), and the annular connector (16) is rotatably installed in the annular groove (14) opened at the upper end of the connecting ring (13).

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