阅读说明：本技术 一种遮阳板的蜗轮蜗杆减速器 (Worm gear reducer of sun shield ) 是由 罗哲金 吴峰 成明松 曹政 曹家剑 于 2020-06-30 设计创作，主要内容包括：为了解决现有的由于结构空间限制造成传输力量不足,并且开启结构均存在运行死点,开启控制并不能到达预想效果和要求的问题,本发明提出一种遮阳板的蜗轮蜗杆减速器,其包括：具有轴孔的减速器壳体、设置在壳体内的蜗轮和滑动穿设在轴孔内的蜗杆,其不采用传统的电机带动推头、推头带动连杆,连杆带动百叶一侧的L型连杆的结构,而是将传动电机通过传动转换器连接传动轴与蜗轮蜗杆减速器相连由蜗轮蜗杆减速器带动梭形叶片发生旋转运动,该结构简单,适用于任何方管结构空间。(In order to solve the problems that the transmission force is insufficient due to the limitation of the structural space, the opening structure has a running dead point, and the opening control cannot reach the expected effect and requirement, the invention provides a worm gear reducer of a sun shield, which comprises: the speed reducer comprises a speed reducer shell with a shaft hole, a worm wheel arranged in the shell and a worm slidably arranged in the shaft hole in a penetrating mode, a traditional motor is not adopted to drive a push head and a push head to drive a connecting rod, the connecting rod drives an L-shaped connecting rod on one side of a louver, a transmission motor is connected with a transmission shaft through a transmission converter and is connected with a worm gear speed reducer, and a shuttle-shaped blade is driven by the worm gear speed reducer to rotate.)

1. A worm gear reducer for a sun visor, comprising: reduction gear casing (1) with the shaft hole, worm wheel (2) and the slip worm (3) of wearing to establish in the shaft hole of setting in the casing, its characterized in that: the reducer shell (1) comprises a first shell (11) and a second shell (12), wherein grooves (13) are formed in the inner walls of two shaft holes of the first shell (11) and the second shell (12), the grooves (13) of the first shell (11) and the second shell (12) are closed to form an inner cavity, spiral threads (31) are arranged in the middle of the worm (3), the spiral threads (31) are located in the inner cavity, a worm sleeve (4) is sleeved at each of two ends of the worm (3), a first limiting ring (41) is arranged on the inner end face of the worm sleeve (4), the first limiting ring (41) is clamped at the end of the inner cavity, the output end of the worm shaft hole (3) penetrates through the outer part of the shell, an angle regulator (5) is sleeved at the output end of the worm (3), the worm wheel (2) is meshed with the worm (3), and the worm wheel (2) is integrally formed by a first through hole (21), a worm wheel body (22) and worm wheel teeth (24), the novel speed reducer is characterized in that a first through hole (21) is formed in the worm wheel body (22), a ring of annular worm wheel teeth (24) are formed in the outer ring of the worm wheel body (22), a second through hole (14) matched with the first through hole (21) is formed in the middle of the speed reducer shell (1), the circle centers of the first through hole (21) and the second through hole (14) are located on the same straight line, and the two ends of the worm wheel body (22) are arranged in the second through holes (14) which are connected in a sleeved mode respectively.

2. The worm gear reducer for a sun visor of claim 1, wherein: two opposite rectangular openings (42) are formed in the position, far away from the first limiting ring (41), of the worm sleeve (4).

3. The worm gear reducer for a sun visor of claim 1, wherein: the inner diameter of the first limiting ring (41) is the same as the outer diameter of the worm (3), and the first limiting ring (41) is in matched sleeve joint with the worm (3).

4. The worm gear reducer for a sun visor of claim 1, wherein: an annular first vertical line boss (32) is arranged on the outer ring of one end, close to the angle adjuster (5), of the worm (3), and an annular second vertical line boss (51) is arranged on the inner ring of one end of the angle adjuster (5).

5. The worm gear reducer for a sun visor of claim 4, wherein: the free end of the first vertical thread boss (32) is provided with a first guide inclined plane (33), and the free end face of the second vertical thread boss (51) is provided with a second guide inclined plane (52).

6. The worm gear reducer for a sun visor of claim 1, wherein: the speed ratio of the worm (3) to the worm wheel (2) is 4:1, and one end of the worm (3) far away from the angle regulator (5) is connected with a motor shaft of a motor.

7. The worm gear reducer for a sun visor of claim 1, wherein: the inner ring of the worm wheel (2) is provided with a fourth vertical stripe boss (25), and the fourth vertical stripe boss (25) is connected with the concave platform of the middle shaft bushing in a matching way.

8. The worm gear reducer for a sun visor of claim 1, wherein: one end of the worm wheel body (22) is provided with two opposite annular waist holes (23).

9. The worm gear reducer for a sun visor of claim 1, wherein: one end of the angle adjuster (5) far away from the second vertical stripe boss (51) is provided with an annular third vertical stripe boss (53), and the third vertical stripe boss (53) is in concave-convex fit with the texture of the transmission connecting rod (6).

10. The worm gear reducer for a sun visor of claim 1, wherein: two symmetrical positioning holes (54) are arranged at the outer wall of the angle adjuster (5) close to the free end.

Technical Field

The invention relates to the technical field of exterior wall shutter equipment, in particular to a worm gear reducer of a sun shield.

Background

The outer wall shutter as a functional product of modern buildings is widely applied to the modern buildings, and has the following advantages: 1. in the aspect of sun shading: by adjusting the opening angle of the louver, the light intensity can be reflected, strong outdoor sunlight, ultraviolet irradiation and thermal radiation can be effectively resisted, and indoor natural light can be adjusted to achieve the effects of shading sun and saving energy; 2. and (3) ventilation: the opening angle of the louver blades is regulated and controlled, so that the air flow is increased or reduced, and the artificial control of the fresh air flow is realized; 3. in the aspect of fire control and smoke exhaust: to the condition that the fire, dense smoke, poisonous gas and the like which occur in the closed place endanger the life safety, the shutter is networked and linked with the fire control system, and the shutter blades can be automatically opened, harmful gas is discharged, and the disaster loss is reduced.

The existing opening and closing mechanism used for the traditional shutter opening structure can meet the functional requirements of the shutter with small single frame area and small number of opening blades, but when the number of the shutter blades exceeds more than ten, the existing shutter opening structure in the market is very difficult to open the blades due to the increase of opening resistance; although the existing shutter opening mechanism in the market also has products installed in a closed cavity, the transmission force is insufficient due to the limitation of structural space, and the opening mechanism has a running dead point, so that the opening control cannot reach the expected effect and requirement.

Disclosure of Invention

The invention provides a worm and gear reducer of a sun shield, aiming at solving the problems that the transmission force is insufficient due to the limitation of the structural space, the opening control cannot reach the expected effect and requirement due to the existence of a running dead point in the opening structure, the worm and gear reducer of the sun shield does not adopt the structure that the traditional motor drives a push head and a push head to drive a connecting rod, and the connecting rod drives an L-shaped connecting rod at one side of a louver, but connects a transmission motor with a transmission shaft through a transmission converter to be connected with the worm and gear reducer, and drives a shuttle-shaped blade to rotate by the worm and gear reducer.

A worm gear reducer for a sun visor, comprising: reduction gear housing 1, the worm wheel 2 that sets up in the casing and the worm 3 of wearing to establish in the shaft hole that slides with the shaft hole, its characterized in that: the reducer shell 1 comprises a first shell 11 and a second shell 12, grooves 13 are formed in the inner walls of two shaft holes of the first shell 11 and the second shell 12, the grooves 13 of the first shell 11 and the second shell 12 are closed to form an inner cavity, spiral threads 31 are formed in the middle of the worm 3, the spiral threads 31 are located in the inner cavity, two ends of the worm 3 are respectively sleeved with a worm sleeve 4, a first limiting ring 41 is arranged on the inner end face of the worm sleeve 4, the first limiting ring 41 is clamped at the end of the inner cavity, the output end of the worm 3 penetrates through the shaft holes and is arranged outside the shell, an angle adjuster 5 is sleeved at the output end of the worm 3, the worm wheel 2 is meshed with the worm 3, the worm wheel 2 is integrally formed by a first through hole 21, a worm wheel body 22 and worm gear teeth 24, a first through hole 21 is formed in the worm wheel body 22, a ring-shaped worm wheel tooth 24 is arranged on the outer ring of the worm wheel body 22, a second through hole 14 matched with, the centers of the first through hole 21 and the second through hole 14 are on the same straight line, and two ends of the worm wheel body 22 are respectively arranged in the second through holes 14 which are sleeved with each other.

Further, two opposite rectangular openings 42 are formed in the worm housing 4 away from the first retainer 41, and the rectangular openings 42 are shrinkage joints formed to prevent the plastic member from deforming to cause over-tight structural fit.

Further, the inner diameter of the first limiting ring 41 is the same as the outer diameter of the worm 3, and the first limiting ring 41 is sleeved with the worm 3 in a matching mode, so that the connection between the worm 3 and the shell is limited.

Furthermore, an annular first vertical stripe boss 32 is arranged on the outer ring of one end of the worm 3 close to the angle adjuster 5, an annular second vertical stripe boss 51 is arranged on the inner ring of one end of the angle adjuster 5, and the angle adjustment effect is achieved through meshing of the first vertical stripe boss 32 and the second vertical stripe boss 51.

Furthermore, the free end of the first vertical thread boss 32 is provided with a first guide inclined plane 33, the free end face of the second vertical thread boss 51 is provided with a second guide inclined plane 52, and the worm 3 and the angle regulator 5 are convenient to disassemble and assemble through the cooperation of the first guide inclined plane 33 and the second guide inclined plane 52.

Furthermore, the speed ratio of the worm 3 to the worm wheel 2 is 4:1, one end of the worm 3, which is far away from the angle regulator 5, is connected with a motor shaft of a motor, and the worm 3 is driven by the motor shaft to rotate so as to enable the worm wheel 2 and the worm 3 to rotate through a speed reducer.

Furthermore, a fourth vertical stripe boss 25 is arranged on the inner ring of the worm wheel 2, and the fourth vertical stripe boss 25 is connected with a concave platform of the middle shaft bushing in a matching way.

Further, worm wheel body 22 one end is equipped with two relative annular waist holes 23, and annular waist hole 23 is spacing jump ring slotted hole, and the later stage has the cooperation of customization jump ring to use.

Furthermore, one end of the angle adjuster 5, which is far away from the second vertical stripe boss 51, is provided with an annular third vertical stripe boss 53, and the third vertical stripe boss 53 is in concave-convex fit with the texture of the transmission connecting rod 6, so that the transmission connecting rod 6 is limited.

Furthermore, two symmetrical positioning holes 54 are formed in the outer wall of the angle adjuster 5 near the free end, and the positioning holes 54 are used for fixing the component when the angle adjuster is fixed after being arranged.

The working principle of the worm gear reducer of the sun shield is as follows: the invention provides a worm and gear reducer of a sun shield, which does not adopt the structure that a traditional motor drives a push head and a push head to drive a connecting rod, the connecting rod drives an L-shaped connecting rod at one side of a louver, a worm wheel 2 of the worm and gear reducer is connected with a central shaft, the central shaft is connected with a shuttle-shaped blade, one end of a worm 3 is connected with a transmission motor, one end of an angle converter is connected with a transmission converter through a transmission shaft, the transmission motor drives the worm 3 of the worm and gear reducer to rotate, namely the worm 3 rotates 4 circles, the worm wheel 2 rotates 1 circle, so that the shuttle-shaped blade nearest to the transmission motor can be controlled to move, and simultaneously the transmission connecting rod 6 is driven to move, then the transmission connecting rod 6 drives the next worm and gear reducer to move, when the next worm and gear reducer moves, the shuttle-shaped blade connected with the second output end of the next worm and gear reducer can be controlled to rotate, and so on.

Drawings

Fig. 1 is an exploded view of a worm gear reducer of the sun visor of the present invention.

Fig. 2 is a schematic view of the overall structure of the worm gear reducer of the sun visor of the present invention.

Fig. 3 is a partial structural view of the worm reducer of the sun visor of the present invention.

Fig. 4 is a partial structural view of the worm reducer of the sun visor of the present invention.

Fig. 5 is a schematic structural view of a reducer housing of the worm gear reducer of the sun visor of the present invention.

Fig. 6 is a schematic view of a worm wheel structure of the worm gear reducer of the sun visor of the present invention.

Fig. 7 is a schematic view of an angle adjuster of a worm reducer of a sun visor according to the present invention.

Fig. 8 is a schematic view of a worm housing structure of the worm gear reducer of the sun visor according to the present invention.

Description of the main elements

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description