CN219774402U - Swing head structure for circulation fan - Google Patents

Abstract

The utility model relates to the technical field of circulating fan components, and discloses a swing head structure for a circulating fan, which includes a front cover, an inner support arm, an outer support arm and a rear cover. The outer side wall of the inner support arm is movably connected with a left outer Rotating support member, a left inner rotating support member is movably connected to the inner wall of the inner support arm, a pitch spring is abutted between the left outer rotating support member and the left inner rotating support member, and a stepper is provided between the inner supporting arm and the outer supporting arm. The power output end of the motor and the stepper motor is fixedly connected with a second gear, the second gear is meshed with the first gear, and one end of the first gear is fixedly connected with one end of the left inner rotation support; the utility model can effectively solve the problem through the pitch spring structure. Effectively balancing the gravity of the front end of the machine has changed the appearance of circulating fans on the market, making the appearance of circulating fans more varied and beautiful, and making the up and down swing of the fan smoother.

Description

A swing head structure for circulation fans

Technical field

The utility model relates to the technical field of circulation fan components, and in particular to a swing head structure for a circulation fan.

Background technique

With the progress of society and the improvement of consumers' living standards, the requirements for home environment are getting higher and higher. Circulation fans, as a household appliance product that circulates and regulates the uniformity of indoor air temperature and humidity, are deeply loved by consumers. Most of the circulating fan support arms on the market are fixed at the center of the machine. This is to keep the central support point exactly at the center of the machine when the whole machine swings its head up and down. The disadvantage is that the appearance of the whole machine has a large structure. Restrictions also make the appearance of circulating fans similar. In order to improve the appearance and the problem of center forward movement, and in order to allow it to swing its head normally at 90° up and down, it is necessary to overcome the gravity problem of the front fan blades of the motor, the front net, and the rear net.

The existing circulating fan has the following disadvantages: 1. Due to the central problem, the circulating fan has a single appearance, which is not beautiful enough, and cannot effectively perform a normal 90° head swing, and cannot effectively balance the gravity of the front end of the machine.

Utility model content

The purpose of this utility model is to provide a swing head structure for a circulation fan to solve the problems raised in the above background art that the normal swing head of 90° cannot be effectively performed and the gravity of the front end of the machine cannot be effectively balanced.

In order to achieve the above purpose, the present utility model provides the following technical solution: a swing head structure for a circulation fan, including a front cover, an inner support arm, an outer support arm and a rear cover. The outer side wall of the inner support arm is movably connected with a left The outer rotation support member is movably connected to the inner wall of the inner support arm with a left inner rotation support member. A pitch spring is abutted between the left outer rotation support member and the left inner rotation support member. A stepper is provided between the inner support arm and the outer support arm. The power output end of the stepper motor is fixedly connected with a second gear, the second gear is meshed with a first gear, and one end of the first gear is fixedly connected with one end of the left inner rotation support member.

As a preferred solution, the first gear is an incomplete gear.

As a preferred solution, the outer side wall of the inner support arm is detachably connected to the outer support arm through bolts.

As a preferred solution, a rear sleeve is movably connected to the inner wall of the inner support arm, and one end of the rear sleeve is detachably connected to a front sleeve through bolts.

As a preferred solution, the side wall of the front cover is provided with a beam ring, the inner wall of the rear cover is provided with a drive motor, and the power output end of the drive motor extends outward through the front cover.

Technical effects and advantages of this utility model:

1. The whole machine is powered on and performs the up and down swinging function. The power output end of the stepper motor rotates to drive the second gear to rotate. The rotation of the second gear drives the first gear meshed with it to rotate. The rotation of the first gear drives the left inner rotation support and pitch. The spring and the left outer rotary support rotate. Under the action of the upward force of the pitch spring, the pitch spring will release the upward elastic force to support the weight of the head, allowing the machine to slowly raise the head to 90°. After reaching the 90° position, the fan Under the action of gravity at the front end, the stepper motor and the pitch spring make the machine slowly swing its head downwards. In this cycle, the circulation fan can swing its head up and down in a circular motion. The pitch spring structure can effectively solve the problem of not being able to effectively balance the gravity of the front end of the machine, changing the market cycle. The appearance of the fan makes the appearance of the circulating fan more varied and more beautiful, making the up and down movement of the fan smoother.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Figure 2 is a front view of the utility model.

In the picture: 1. Front cover; 2. Beam ring; 3. Drive motor; 4. Inner support arm; 5. Left outer rotation support; 6. Pitch spring; 7. Left inner rotation support; 8. First gear ; 9. Back cover; 10. Stepper motor; 11. Second gear; 12. External support arm.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

The utility model provides a swing head structure for a circulation fan as shown in Figure 1-2, which includes a front cover 1, an inner support arm 4, an outer support arm 12 and a rear cover 9. The outer side wall of the inner support arm 4 is movable. A left outer rotation support member 5 is connected to the inner support arm 4. A left inner rotation support member 7 is movably connected to the inner wall of the inner support arm 4. A pitch spring 6 is abutted between the left outer rotation support member 5 and the left inner rotation support member 7. The inner support arm 4 A stepper motor 10 is provided between 4 and the outer support arm 12. The power output end of the stepper motor 10 is fixedly connected with a second gear 11. The second gear 11 is meshed with a first gear 8. One end of the first gear 8 is connected to the left inner One end of the rotating support 7 is fixedly connected, and the first gear 8 is an incomplete gear; the whole machine is powered on and performs the up and down swing function. The power output end of the stepper motor 10 rotates to drive the second gear 11 to rotate, and the second gear 11 rotates to mesh with it. The first gear 8 rotates, and the rotation of the first gear 8 drives the left inner rotation support 7, the pitch spring 6, and the left outer rotation support 5 to rotate. Under the action of the upward force of the pitch spring 6, the pitch spring 6 will release the upward elastic force. Support the weight of the head so that the machine slowly raises the head to 90°. After reaching the 90° position, the stepper motor 10 cooperates with the pitch spring 6 under the gravity of the front end of the fan to make the machine slowly swing its head downwards. This cycle achieves The circulating up and down swing head of the circulating fan, the pitch spring 6 structure can effectively solve the problem of not being able to effectively balance the gravity of the front end of the machine, changing the appearance of the circulating fan on the market, making the appearance of the circulating fan more varied and beautiful, making the up and down swing head more beautiful of smoothness.

In this embodiment, the outer support arm 12 is detachably connected to the outer side wall of the inner support arm 4 through bolts, and the rear sleeve 9 is movably connected to the inner side wall of the inner support arm 4. One end of the rear sleeve 9 is detachably connected to the front sleeve 1 through bolts. The side wall of the front cover 1 is provided with a beam ring 2, the inner wall of the rear cover 9 is provided with a drive motor 3, and the power output end of the drive motor 3 extends outward through the front cover 1; the outer support arm 12 and the front cover 1 are connected by bolts, and the structure is stable. , can be disassembled for easy internal inspection and use.

Practical working principle of this utility model: This utility model is a swing head structure for a circulation fan. The whole machine is powered on and performs the up and down swing head function. The power output end of the stepper motor 10 rotates to drive the second gear 11 to rotate, and the second gear 11 rotates. The first gear 8 that meshes with it is driven to rotate. The rotation of the first gear 8 drives the left inner rotation support 7, the pitch spring 6, and the left outer rotation support 5 to rotate. Under the action of the upward force of the pitch spring 6, the pitch spring 6 will be released. The upward elastic force supports the weight of the head, causing the machine to slowly raise its head to 90°. After reaching the 90° position, the stepper motor 10 cooperates with the pitch spring 6 under the gravity of the front end of the fan to make the machine slowly swing its head downward.

Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions recorded in the foregoing embodiments, or to perform equivalent substitutions on some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model, All should be included in the protection scope of this utility model.

Claims (5)

1. A swing head structure for a circulation fan, including a front cover (1), an inner support arm (4), an outer support arm (12) and a rear cover (9), characterized in that: the inner support arm ( 4) The outer wall is movably connected with a left outer rotary support piece (5), the inner support arm (4) is movably connected with a left inner rotary support piece (7) on the inner wall, and the left outer rotary support piece (5) is movably connected with the left inner rotary support piece (7) is in contact with a pitch spring (6), a stepper motor (10) is provided between the inner support arm (4) and the outer support arm (12), and the power output end of the stepper motor (10) is fixedly connected with The second gear (11) is meshed with the first gear (8), and one end of the first gear (8) is fixedly connected to one end of the left internal rotation support member (7). 2. A swing head structure for a circulation fan according to claim 1, characterized in that the first gear (8) is an incomplete gear. 3. A swing head structure for a circulation fan according to claim 1, characterized in that: the outer support arm (12) is detachably connected to the outer side wall of the inner support arm (4) through bolts. 4. A swing head structure for a circulation fan according to claim 1, characterized in that: a rear sleeve (9) is movably connected to the inner wall of the inner support arm (4), and one end of the rear sleeve (9) passes through The removable bolt connection has a front sleeve (1). 5. A swing head structure for a circulation fan according to claim 1, characterized in that: the side wall of the front cover (1) is provided with a beam ring (2), and the inner wall of the rear cover (9) is provided with a The drive motor (3) has a power output end extending outward through the front cover (1).