Connecting shaft structure for fan lamp

Abstract

The utility model discloses a connecting shaft structure for a fan lamp, which comprises a shaft rod and a fan motor connected to the shaft rod through a bearing, the bottom end and the top end of the shaft rod are both provided with connecting external threads, the bottom of the shaft rod is provided with a lamp mounting plate and is limited through a nut at the bottom end of the shaft rod, and a bearing mounting boss is integrally formed in the middle of the shaft rod. A limiting boss is integrally formed on the lower portion of the shaft rod. A limiting sleeve is arranged on the shaft rod, the surface of the limiting boss is sleeved with the top end of the limiting sleeve, the top face of the limiting sleeve abuts against the bottom face of the bearing installation boss, and the bottom end of the limiting sleeve abuts against the top face of the lamp installation plate. And the lamp mounting plate is clamped and positioned through the limiting sleeve and the nut. The bearing is reasonable in structural arrangement, the limiting boss is arranged and matched with the limiting sleeve, stress on the bearing can be reduced, abrasion of the bearing is reduced, the use stability of the whole structure can be improved, the service life of the whole structure can be prolonged, noise generated by abrasion is reduced, applicability is high, and practicability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan lamps, and particularly relates to a connecting shaft structure for a fan lamp. Background Art

[0002] A fan lamp is a common lamp, which generally includes a shaft, a fan motor arranged on the shaft and a lamp mounting plate connected to the bottom end of the shaft. A bearing is provided at the connection between the shaft and the fan motor to ensure the normal rotation of the fan. In the prior art, the lamp mounting plate is attached to the bottom surface of the bearing. Although it can meet the general use requirements, in actual application, the shaft will produce certain vibrations when rotating, so the bottom surface of the bearing will be affected by the lamp mounting plate, which will greatly increase the stress change of the bearing, that is, the force between the bearing and the shaft is uneven, which will easily cause greater wear of the bearing when used for a long time, and it is easy to produce greater noise between the shaft and the bearing, affecting the service life and stability of the bearing. Utility Model Content

[0003] The utility model aims to provide a connecting shaft structure for a fan lamp which has a reasonable structural arrangement and is conducive to reducing bearing wear.

[0004] The technical solution for achieving the purpose of the utility model is a connecting shaft structure for a fan lamp, comprising a shaft, a fan motor connected to the middle part of the shaft through a bearing, the bottom and top ends of the shaft being provided with connecting external threads, a lamp mounting plate being provided at the bottom of the shaft and being limited by a nut at the bottom end of the shaft, a bearing mounting boss being integrally formed at the middle part of the shaft, and a limiting boss being integrally formed at the lower part of the shaft;

[0005] The limiting boss is located between the bearing mounting boss and the connecting external thread, and the bearing is connected to the bearing mounting boss;

[0006] A limiting sleeve is provided on the shaft, the top end of the limiting sleeve is sleeved on the surface of the limiting boss, the top surface of the limiting sleeve is pressed against the bottom surface of the bearing mounting boss, and the bottom end of the limiting sleeve is pressed against the top surface of the lamp mounting plate;

[0007] The lamp installation plate is clamped and positioned by the limiting sleeve and the nut.

[0008] Further preferably, the diameter of the bearing mounting boss is larger than the diameter of the limiting boss, and the diameter of the limiting boss is larger than the diameter of the connecting external thread.

[0009] More preferably, the width of the limiting boss is 2-6 cm.

[0010] It is further preferred that: the inner diameter of the limiting sleeve matches the outer diameter of the limiting boss, and the outer diameter of the limiting sleeve is larger than the outer diameter of the bearing mounting boss;

[0011] A gap is provided between the top surface of the limiting sleeve and the bottom surface of the bearing.

[0012] More preferably, the limiting sleeve is a metal structure or a plastic structure.

[0013] The utility model has positive effects: the structure of the utility model is reasonably set up, and a limiting boss is provided, and it cooperates with a limiting sleeve. During assembly, the top end of the limiting sleeve is sleeved on the limiting boss, and the bottom end cooperates with a nut to complete the clamping and positioning of the lamp mounting plate, and the bearing is connected to the bearing mounting boss, so that the lamp mounting plate and the bearing can be avoided from being abutted during use, and the top end of the limiting sleeve abuts against the bottom surface of the bearing mounting boss, which can reduce the stress on the bearing and also reduce the wear of the bearing, which is beneficial to improving the stability and service life of the overall structure, reducing the noise caused by wear, and has strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the specific structure of the central axis rod of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0019] Reference numerals: shaft 1, bearing 2, fan motor 3, connecting external thread 4, lamp mounting plate 5, nut 6, bearing mounting boss 7, limiting boss 8, limiting sleeve 9. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example

[0022] See Figures 1 to 4 As shown, a connecting shaft structure for a fan lamp includes a shaft 1, a fan motor 3 connected to the middle of the shaft through a bearing 2, and a connecting external thread 4 is provided at the bottom and top ends of the shaft. A lamp mounting plate 5 is provided at the bottom of the shaft and is limited by a nut 6 at the bottom end of the shaft. In this embodiment, the above structures are conventional structures of the prior art and are simply applied, so they are not described in detail.

[0023] In this embodiment, a bearing mounting boss 7 is integrally formed in the middle portion of the shaft, and a limiting boss 8 is integrally formed in the lower portion of the shaft. Furthermore, the limiting boss is located between the bearing mounting boss and the connecting external thread, and the bearing is connected to the bearing mounting boss. A limiting sleeve 9 is provided on the shaft. During assembly, the top end of the limiting sleeve is sleeved onto the surface of the limiting boss, and the top surface of the limiting sleeve abuts against the bottom surface of the bearing mounting boss, while the bottom end of the limiting sleeve abuts against the top surface of the lamp mounting plate. The lamp mounting plate is clamped and positioned by the limiting sleeve and the nut. The limiting sleeve prevents contact between the lamp mounting plate and the bearing, thereby preventing the lamp mounting plate from affecting the stress of the bearing. Furthermore, the top end of the limiting sleeve abuts against the bottom surface of the bearing mounting boss, meaning that the limiting sleeve does not affect the operation of the bearing. This reduces the bearing's vibration from being displaced by the limiting sleeve, thereby reducing bearing wear and improving the stability and service life of the overall structure.

[0024] In actual use, the diameter of the bearing mounting boss is larger than that of the stop boss, which is also larger than the diameter of the connecting external thread. Furthermore, the width of the stop boss is 2-6 cm. This means that the placement of the stop boss does not affect the processing of the external thread or the installation and positioning of the lamp mounting plate.

[0025] In actual use, the inner diameter of the limiting sleeve matches the outer diameter of the limiting boss, and the outer diameter of the limiting sleeve is larger than the outer diameter of the bearing mounting boss. A gap is provided between the top surface of the limiting sleeve and the bottom surface of the bearing. The limiting sleeve is a metal or plastic structure. This structure ensures that the limiting sleeve does not contact the bearing, thereby preventing it from affecting its rotation and avoiding wear caused by changes in bearing stress, thus achieving high practicality.

[0026] The utility model has positive effects: the structure of the utility model is reasonably set up, and a limiting boss is provided, and it cooperates with a limiting sleeve. During assembly, the top end of the limiting sleeve is sleeved on the limiting boss, and the bottom end cooperates with a nut to complete the clamping and positioning of the lamp mounting plate, and the bearing is connected to the bearing mounting boss, so that the lamp mounting plate and the bearing can be avoided from being abutted during use, and the top end of the limiting sleeve abuts against the bottom surface of the bearing mounting boss, which can reduce the stress on the bearing and also reduce the wear of the bearing, which is beneficial to improving the stability and service life of the overall structure, reducing the noise caused by wear, and has strong applicability and good practicality.

[0027] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components described in the specification can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description is given here.

[0028] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. However, obvious variations or modifications arising from the essence of the present invention remain within the scope of protection of the present invention.

Claims

1. A connecting shaft structure for a fan lamp, comprising a shaft, a fan motor connected to the middle of the shaft via a bearing, the shaft having external connecting threads at both the bottom and top ends, a lamp mounting plate at the bottom of the shaft, and a nut at the bottom end of the shaft for position control, characterized in that: A bearing mounting boss is integrally formed on the middle portion of the shaft, and a limiting boss is integrally formed on the lower portion of the shaft; The limiting boss is located between the bearing mounting boss and the connecting external thread, and the bearing is connected to the bearing mounting boss; A limiting sleeve is provided on the shaft, the top end of the limiting sleeve is sleeved on the surface of the limiting boss, the top surface of the limiting sleeve is pressed against the bottom surface of the bearing mounting boss, and the bottom end of the limiting sleeve is pressed against the top surface of the lamp mounting plate; The lamp mounting plate is clamped and positioned by the limiting sleeve and the nut.

2. The connecting shaft structure for a fan lamp according to claim 1, characterized in that: The diameter of the bearing mounting boss is larger than the diameter of the limiting boss, and the diameter of the limiting boss is larger than the diameter of the connecting external thread.

3. The connecting shaft structure for a fan lamp according to claim 2, characterized in that: The width of the limiting boss is 2-6 cm.

4. The connecting shaft structure for a fan lamp according to claim 1, characterized in that: The inner diameter of the limiting sleeve matches the outer diameter of the limiting boss, and the outer diameter of the limiting sleeve is larger than the outer diameter of the bearing mounting boss; A gap is provided between the top surface of the limiting sleeve and the bottom surface of the bearing.

5. The connecting shaft structure for a fan lamp according to claim 1, characterized in that: The limiting sleeve is a metal structure or a plastic structure.

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