Fan mounting plate capable of achieving double-layer damping

Abstract

The utility model relates to a fan mounting plate capable of double-layer shock absorption, which comprises a fixed cylinder, a driving motor is arranged in the fixed cylinder, the bottom end of the fixed cylinder is provided with an extending groove, and a motor shaft of the driving motor is connected with a fan mounting shaft through a first shock absorption structure. The utility model relates to the technical field of fan installation. According to the fan mounting plate capable of achieving double-layer damping, in the process that a fan mounting shaft is driven by a driving motor to rotate, and a motor shaft drives the fan mounting shaft to be in a rotating state from a static state, rubber plates can be twisted, so that the multiple rubber plates are twisted together to form a flexible connecting shaft; and in the twisting process of the rubber plate, deflection generated by the motor shaft can be effectively prevented from being transmitted to the fan mounting shaft, so that the problem of fan vibration caused by deflection of the fan mounting shaft is avoided, and the purpose of absorbing energy and reducing vibration generated when the fan is started is effectively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan installation, in particular to a fan installation plate capable of double-layer shock absorption. Background Art

[0002] A fan is also called an electric fan or a ventilation fan. It is an air conditioning appliance that uses an electric motor to drive the airflow by rotating the fan blades to exchange the air between the indoor and outdoor areas. Top-level fans are widely used in homes and public places. However, top-level fans need to be used in conjunction with a mounting plate to support the top-level fan and improve its stability.

[0003] In the prior art, top-floor fans are usually fixed to the roof through a mounting plate and expansion screws. However, during the start-up of the fan, the tolerance between the motor shaft and the motor housing may cause the motor shaft to swing. Since the motor shaft is usually directly connected to the fan, the swing of the motor shaft will be amplified by the fan and will cause a large vibration, which can easily cause the mounting plate to shake or even the expansion screws to loosen, causing the fan to fall off and cause danger. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a fan mounting plate with double-layer shock absorption, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A fan mounting plate capable of double-layer shock absorption comprises a fixing cylinder, a driving motor is arranged inside the fixing cylinder, and a protruding groove is opened at the bottom end of the fixing cylinder;

[0007] The motor shaft of the driving motor is connected to the fan mounting shaft through the first damping structure, and the outer peripheral side of the fan mounting shaft is provided with a second damping structure connected to the groove wall of the extension groove;

[0008] The first damping structure includes two fixing rings and a plurality of rubber plates, the two fixing rings are fixedly connected to the motor shaft and the fan mounting shaft respectively, the two ends of the rubber plates are fixedly connected to the outer side walls of the two fixing rings respectively, and the distance between two adjacent rubber plates is equal;

[0009] The second shock-absorbing structure includes a first rotating ring and a second rotating ring. The first rotating ring is rotatably connected to the outer wall of the fan mounting shaft, and the second rotating ring is rotatably connected to the groove wall of the extension groove. The inner wall of the second rotating ring is provided with a plurality of arc-shaped support plates connected to the inner wall of the first rotating ring.

[0010] Furthermore, a connecting groove is provided at the bottom end of the motor shaft of the driving motor, and a plug rod matching the connecting groove is provided at the top end of the fan mounting shaft. The top surface of the plug rod is a regular hexagon and the bottom surface is circular, and the top surface area of ​​the plug rod is smaller than the bottom surface area.

[0011] Furthermore, there is a gap between the inner wall of the fixing tube and the outer wall of the driving motor, and a shock-absorbing pad is arranged inside the gap. The shock-absorbing pad is composed of a plurality of arched spring plates connected to each other and surrounds the outer peripheral wall of the driving motor.

[0012] Furthermore, an annular inner groove for mounting the second rotating ring is formed on the groove wall of the extending groove, and an annular outer groove for mounting the first rotating ring is formed on the outer wall of the fan mounting shaft.

[0013] Furthermore, a positioning plate is provided on the circumferential side of the fixing tube, and a mounting screw hole is provided inside the positioning plate.

[0014] Furthermore, an annular mounting sleeve is provided at the bottom end of the fixing cylinder. The annular mounting sleeve is made of rubber material and a socket for positioning the fan mounting shaft is opened at the bottom end.

[0015] In summary, the present invention includes at least one of the following beneficial technical effects:

[0016] 1. The fan mounting plate with double-layer shock absorption drives the fan mounting shaft to rotate through a driving motor. In the process of the motor shaft driving the fan mounting shaft from a stationary state to a rotating state, the rubber plate is twisted, so that multiple rubber plates are screwed together to form a flexible connecting shaft. In the process of twisting the rubber plate, the deflection generated by the motor shaft can be effectively prevented from being transmitted to the fan mounting shaft, thereby preventing the deflection of the fan mounting shaft from causing the fan to vibrate, and effectively achieving the purpose of absorbing and reducing the vibration generated when the fan is started;

[0017] 2. The fan mounting plate with double-layer shock absorption, when the fan mounting shaft oscillates and shakes, will drive the first rotating ring to deflect and move synchronously, the outer wall of the first rotating ring is provided with an arc-shaped support plate, and the other end of the arc-shaped support plate is connected to the second rotating ring connected to the groove wall of the extended groove, so that the fan mounting shaft and the fixed cylinder are elastically connected, so that when the fan mounting shaft oscillates and shakes, the arc-shaped support plate can effectively absorb the energy of the deflection of the fan mounting shaft, so as to achieve the purpose of improving the stability of the fan mounting shaft, and further achieve the purpose of absorbing energy and shock absorbing the vibration generated when the fan is started;

[0018] 3. A fan mounting plate with double-layer shock absorption, after the rubber plate is twisted, the deflection generated by the motor shaft at startup is absorbed by the rubber plate, and the motor shaft is in a stable running state at this time. During the twisting process of the rubber plate, the distance between the bottom end surface of the motor shaft and the top end surface of the fan mounting shaft is reduced. At this time, the plug rod will be inserted into the inside of the connecting groove to directly connect the motor shaft and the fan mounting shaft, so that the output of the motor shaft to the fan mounting shaft is more stable, and it can effectively prevent the problem of damage to the rubber plate caused by excessive twisting of the rubber plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The utility model is a schematic structural diagram of a fan mounting plate capable of double-layer vibration reduction.

[0021] Figure 2 The utility model is a schematic diagram of the internal structure of a fixing tube of a fan mounting plate capable of double-layer shock absorption.

[0022] Figure 3 It is a structural schematic diagram of a second shock-absorbing structure of a fan mounting plate capable of double-layer shock absorption according to the utility model.

[0023] Figure 4 It is a structural schematic diagram of a first shock-absorbing structure of a fan mounting plate capable of double-layer shock absorption according to the utility model.

[0024] Figure 5 The utility model is a schematic structural diagram of a connecting groove and an inserting rod of a fan mounting plate capable of double-layer shock absorption.

[0025] In the figure, 1, fixing cylinder; 2, driving motor; 3, extending groove; 4, first shock-absorbing structure; 41, fixing ring; 42, rubber plate; 5, fan mounting shaft; 6, second shock-absorbing structure; 61, first rotating ring; 62, second rotating ring; 63, arc-shaped support plate; 7, connecting groove; 8, plug rod; 9, gap; 10, shock-absorbing pad; 11, annular inner groove; 12, annular outer groove; 13, positioning plate; 14, mounting screw hole; 15, annular mounting sleeve; 16, plug hole. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] Example:

[0028] Reference Figure 1-Figure 5 The utility model discloses a fan mounting plate with double-layer shock absorption, comprising a fixing tube 1, a driving motor 2 is arranged inside the fixing tube 1, and a protruding groove 3 is opened at the bottom end of the fixing tube 1;

[0029] The motor shaft of the driving motor 2 is connected to the fan mounting shaft 5 through the first damping structure 4, and the outer peripheral side of the fan mounting shaft 5 is provided with a second damping structure 6 connected to the groove wall of the extension groove 3;

[0030] The first damping structure 4 includes two fixing rings 41 and a plurality of rubber plates 42. The two fixing rings 41 are fixedly connected to the motor shaft and the fan mounting shaft 5 respectively. The two ends of the rubber plates 42 are fixedly connected to the outer side walls of the two fixing rings 41 respectively, and the distance between two adjacent rubber plates 42 is equal.

[0031] The second shock-absorbing structure 6 includes a first rotating ring 61 and a second rotating ring 62. The first rotating ring 61 is rotatably connected to the outer wall of the fan mounting shaft 5, and the second rotating ring 62 is rotatably connected to the groove wall of the extension groove 3. The inner wall of the second rotating ring 62 is provided with a plurality of arc-shaped support plates 63 connected to the inner wall of the first rotating ring 61.

[0032] In this embodiment, the fan mounting shaft 5 is driven to rotate by the driving motor 2, and the motor shaft drives the fan mounting shaft 5 to rotate through the first damping structure 4. In the process of the motor shaft driving the fan mounting shaft 5 from a stationary state to a rotating state, the rubber sheet 42 is twisted, so that a plurality of rubber sheets 42 are screwed together to form a flexible connection shaft. In the process of twisting the rubber sheet 42, the deflection generated by the motor shaft can be effectively prevented from being transmitted to the fan mounting shaft 5, thereby preventing the deflection of the fan mounting shaft 5 from causing the fan vibration.

[0033] When the fan mounting shaft 5 rotates, the second damping structure 6 is used to limit the rotation of the fan mounting shaft 5. When the fan mounting shaft 5 vibrates, the fan mounting shaft 5 compresses the second damping structure 6 and resets through the second damping structure 6 to prevent the vibration of the fan mounting shaft 5 from being transmitted to the fixing tube 1, thereby avoiding the problem of bolts falling off caused by the vibration of the fixing tube 1.

[0034] Specifically, when the fan mounting shaft 5 oscillates and shakes, it will drive the first rotating ring 61 to deflect and move synchronously. The outer wall of the first rotating ring 61 is provided with an arc-shaped support plate 63, and the other end of the arc-shaped support plate 63 is connected to the second rotating ring 62 connected to the groove wall of the extended groove 3. Therefore, the fan mounting shaft 5 and the fixed tube 1 are elastically connected. Therefore, when the fan mounting shaft 5 oscillates and shakes, the arc-shaped support plate 63 can effectively absorb the energy of the swing of the fan mounting shaft 5, so as to achieve the purpose of improving the stability of the fan mounting shaft 5.

[0035] In a further preferred embodiment of the present invention, Figure 1-5 As shown, a connecting groove 7 is provided at the bottom end of the motor shaft of the driving motor 2, and a plug rod 8 matching the connecting groove 7 is provided at the top end of the fan mounting shaft 5. The top surface of the plug rod 8 is a regular hexagon and the bottom surface is a circle, and the top surface area of ​​the plug rod 8 is smaller than the bottom surface area.

[0036] In this embodiment, during the twisting process of the rubber sheet 42, the distance between the bottom end surface of the motor shaft and the top end surface of the fan mounting shaft 5 will be reduced, and at this time, the deflection generated by the motor shaft at startup has been absorbed by the rubber sheet 42, so that the motor shaft is in a stable running state at this time, and then when the distance between the bottom end surface of the motor shaft and the top end surface of the fan mounting shaft 5 is reduced, the plug rod 8 will be inserted into the interior of the connecting groove 7, so that the motor shaft and the fan mounting shaft 5 are directly connected, so that the output of the motor shaft to the fan mounting shaft 5 is more stable, and it can effectively prevent the problem of excessive twisting of the rubber sheet 42 causing damage to the rubber sheet 42. Since the top end area of ​​the plug rod 8 is smaller than the bottom end area, the plug rod 8 is arranged in a trapezoidal table to facilitate the insertion of the plug rod 8 into the interior of the connecting groove 7.

[0037] In a further preferred embodiment of the present invention, Figure 1-5 As shown, there is a gap 9 between the inner wall of the fixing tube 1 and the outer wall of the driving motor 2 , and a shock-absorbing pad 10 is arranged inside the gap 9 . The shock-absorbing pad 10 is composed of a plurality of arched spring plates connected to each other and surrounds the outer peripheral wall of the driving motor 2 .

[0038] In the present embodiment, the gap 9 is provided for installing the shock-absorbing pad 10, and the position of the driving motor 2 and the fixing tube 1 is fixed by the setting of the shock-absorbing pad 10. Since the shock-absorbing pad 10 is provided by a plurality of arched spring pieces connected to each other, the resonance between the motor and the fixing tube 1 can be effectively avoided. In addition, the setting of the arched spring pieces can make the outer surface of the driving motor 2 contact with the air over a large area, thereby achieving the purpose of improving the heat dissipation efficiency of the driving motor 2.

[0039] In a further preferred embodiment of the present invention, Figure 1-5As shown, the groove wall of the extending groove 3 is provided with an annular inner groove 11 for mounting the second rotating ring 62 , and the outer wall of the fan mounting shaft 5 is provided with an annular outer groove 12 for mounting the first rotating ring 61 .

[0040] In this embodiment, the annular inner groove 11 and the annular outer groove 12 are respectively used to fix the second rotating ring 62 and the first rotating ring 61 , so as to achieve the effect of installing the second damping structure 6 between the fan mounting shaft 5 and the fixing tube 1 .

[0041] In a further preferred embodiment of the present invention, Figure 1-5 As shown, a positioning plate 13 is provided on the circumferential side of the fixing tube 1 , and a mounting screw hole 14 is provided inside the positioning plate 13 .

[0042] In this embodiment, the positioning plate 13 and the mounting screw holes 14 are provided to mount the fixing tube 1 on the top wall of the house.

[0043] In a further preferred embodiment of the present invention, Figure 1-5 As shown, an annular mounting sleeve 15 is provided at the bottom end of the fixing cylinder 1 . The annular mounting sleeve 15 is made of rubber and has a plug hole 16 for positioning the fan mounting shaft 5 at the bottom end.

[0044] In this embodiment, the annular mounting sleeve 15 is used to cover the extension groove 3 at the bottom end of the fixing tube 1 to prevent dust from entering the fixing tube 1, thereby achieving the effect of increasing the service life of the mounting plate.

[0045] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fan mounting plate capable of double-layer shock absorption, characterized in that: It comprises a fixed cylinder (1), a driving motor (2) is arranged inside the fixed cylinder (1), and a protruding groove (3) is opened at the bottom end of the fixed cylinder (1); The motor shaft of the driving motor (2) is connected to a fan mounting shaft (5) via a first damping structure (4), and a second damping structure (6) connected to a groove wall of the extension groove (3) is provided on the outer peripheral side of the fan mounting shaft (5); The first shock absorbing structure (4) comprises two fixing rings (41) and a plurality of rubber plates (42), the two fixing rings (41) being fixedly connected to the motor shaft and the fan mounting shaft (5) respectively, the two ends of the rubber plates (42) being fixedly connected to the outer side walls of the two fixing rings (41) respectively, and the distance between two adjacent rubber plates (42) being equal; The second shock-absorbing structure (6) comprises a first rotating ring (61) and a second rotating ring (62), wherein the first rotating ring (61) is rotatably connected to the outer wall of the fan mounting shaft (5), and the second rotating ring (62) is rotatably connected to the groove wall of the extension groove (3), and the inner wall of the second rotating ring (62) is provided with a plurality of arc-shaped support plates (63) connected to the inner wall of the first rotating ring (61).

2. A fan mounting plate with double-layer shock absorption according to claim 1, characterized in that: A connecting groove (7) is provided at the bottom end of the motor shaft of the driving motor (2), and a plug rod (8) matching with the connecting groove (7) is provided at the top end of the fan mounting shaft (5), the top surface of the plug rod (8) is a regular hexagon and the bottom surface is a circle, and the top surface area of ​​the plug rod (8) is smaller than the bottom surface area.

3. A fan mounting plate with double-layer shock absorption according to claim 2, characterized in that: There is a gap (9) between the inner wall of the fixing cylinder (1) and the outer wall of the driving motor (2), and a shock-absorbing pad (10) is arranged inside the gap (9). The shock-absorbing pad (10) is composed of a plurality of arched spring plates connected to each other and surrounds the outer peripheral wall of the driving motor (2).

4. A fan mounting plate with double-layer shock absorption according to claim 3, characterized in that: The groove wall of the extension groove (3) is provided with an annular inner groove (11) for installing the second rotating ring (62), and the outer wall of the fan installation shaft (5) is provided with an annular outer groove (12) for installing the first rotating ring (61).

5. A fan mounting plate with double-layer shock absorption according to claim 4, characterized in that: A positioning plate (13) is provided on the circumferential side of the fixing tube (1), and a mounting screw hole (14) is provided inside the positioning plate (13).

6. A fan mounting plate with double-layer vibration reduction according to claim 5, characterized in that: The bottom end of the fixing tube (1) is provided with an annular mounting sleeve (15), the annular mounting sleeve (15) is made of rubber material, and a plug hole (16) for positioning the fan mounting shaft (5) is opened at the bottom end.

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