CN221169184U - Electric door - Google Patents

Abstract

The utility model relates to the technical field of electric doors, and discloses an electric door which comprises an upright post assembly, a door body assembly, a connecting rod assembly and a speed-reducing door opener, wherein the speed-reducing door opener comprises a motor body, a screw rod, a sliding sleeve, a sliding piece and a rotating arm assembly; the door body assembly is rotationally connected with the upright post assembly, the motor body is arranged on the upright post assembly, the screw rod is connected with an output shaft of the motor body, the sliding sleeve is in threaded connection with the screw rod, the sliding piece is connected with the sliding sleeve and is in sliding connection with the rotating arm assembly, and the rotating arm assembly is connected with the door body assembly; when the motor body drives the screw rod to rotate, the sliding sleeve moves, and the sliding piece and the rotating arm assembly slide relatively during the movement, so that the rotating arm assembly rotates, and the door body assembly is driven to rotate through the connecting rod assembly when the rotating arm assembly rotates. The speed reduction ratio of the screw speed reducer can be set by designing the pitch of the screw, so that the speed reduction and moment increase functions are realized. Compared with a gear reducer, the screw rod sliding sleeve is simple in structure, convenient to produce and assemble, low in cost, long in service life, low in noise and free from frequent maintenance, and the abrasion of the screw rod sliding sleeve during working is small.

Description

Electric door

Technical Field

The utility model relates to the technical field of electric doors, in particular to an electric door.

Background

Most communities, villas and roadway intersections are provided with electric doors for controlling population or vehicle access.

Generally, a door body of the electric door is driven by a motor, a gear reducer is arranged between the motor and the door body, and the reducer can be used for transmitting the torque of the motor to play a role in reducing and increasing the torque.

However, the gear reducer has a complex structure, complex processing and assembling processes and high cost, and the gear set has larger transmission working noise and is easy to wear after long-time working.

Disclosure of utility model

The embodiment of the utility model aims to provide an electric door, which solves the technical problems of high cost, high working noise and easy abrasion of a gear reducer in the prior art.

The technical scheme adopted by the embodiment of the utility model for solving the technical problems is as follows: the electric door comprises a stand column assembly, a door body assembly, a connecting rod assembly and a speed reduction door opener, wherein the speed reduction door opener comprises a motor body, a screw rod, a sliding sleeve, a sliding piece and a rotating arm assembly; the door body assembly is rotationally connected with the upright post assembly, the motor body is arranged on the upright post assembly, one end of the screw rod is connected with an output shaft of the motor body, the sliding sleeve is in threaded connection with the screw rod, the sliding piece is connected with the sliding sleeve and is in sliding connection with the rotating arm assembly, and the rotating arm assembly is connected with the door body assembly; when the motor body drives the screw rod to rotate, the sliding sleeve moves along the axial direction of the screw rod, and during the axial movement, the sliding piece and the rotating arm assembly slide relatively, so that the rotating arm assembly rotates, and when the rotating arm assembly rotates, the door body assembly is driven to rotate through the connecting rod assembly.

In some embodiments, the rotating arm assembly is provided with a guide groove, the sliding piece is in sliding fit with the guide groove, and the guide groove extends along a straight line.

In some embodiments, the slide is rotatably coupled to the sliding sleeve.

In some embodiments, the slider is a rectangular or circular block.

In some embodiments, the rotating arm assembly includes a rotating arm and a drive shaft; the guide slot is arranged on the rotating arm, one end of the rotating arm is connected with the transmission shaft, and one end of the transmission shaft is connected with the door body assembly.

In some embodiments, the linkage assembly includes a first linkage and a second linkage; one end of the first connecting rod is connected with the transmission shaft, the other end of the first connecting rod is rotationally connected with one end of the second connecting rod, and the other end of the second connecting rod is rotationally connected with the door body assembly.

In some embodiments, the first connecting rod is provided with a fixing hole, the transmission shaft is inserted into the fixing hole, and a connecting key is arranged between the fixing hole and the transmission shaft; or the first connecting rod is provided with a concave part, the end face of the transmission shaft is provided with a convex part, the convex part is matched with the shape of the concave part, and the convex part is inserted into the concave part and then circumferentially limited and fixed.

In some embodiments, the column assembly includes a column body, a base, a first column rotational portion, a mount, a second column rotational portion, and a mount; the door body assembly comprises a door body, a first door body rotating part and a second door body rotating part; the upright post body is vertically arranged, one end of the upright post body is connected with the base, and the other end of the upright post body is connected with the mounting seat; the first door body rotating part and the second door body rotating part are connected with the door body; the first upright column rotating part is arranged on the base and is rotationally connected with the first door body rotating part; the second upright column rotating part is arranged on the mounting seat and is rotationally connected with the second door body rotating part; the fixed seat is arranged on the side surface of the upright post body, and the speed-reducing door opener is arranged on the fixed seat; the other end of the second connecting rod is rotationally connected with the door body.

In some embodiments, the axis of the output shaft of the motor body is horizontally arranged, the axis of the screw rod coincides with the axis of the output shaft of the motor body, and the axis of the transmission shaft is vertically arranged and coincides with the axis of the door body rotating part; or the axis of the motor body output shaft is vertically arranged, the axis of the screw rod is coincident with the axis of the motor body output shaft, the axis of the transmission shaft is horizontally arranged, and the transmission shaft is connected with the first connecting rod through a reversing mechanism.

In some embodiments, the slide has two and the swivel arm has two; the sliding sleeve is characterized in that two sliding pieces are respectively arranged on two sides of the sliding sleeve, each sliding piece is in sliding fit with a corresponding sliding groove of the corresponding rotating arm, one end of each rotating arm is connected with the transmission shaft, one rotating arm is close to one end of the transmission shaft, and the other rotating arm is close to the other end of the transmission shaft.

Compared with the prior art, the utility model provides the electric door, when the motor body drives the screw rod to rotate, the sliding sleeve moves along the axial direction of the screw rod, and the sliding piece and the rotating arm assembly slide relatively during the movement so as to enable the rotating arm assembly to rotate, and when the rotating arm assembly rotates, the door body assembly is driven to rotate through the connecting rod assembly. The speed reduction ratio of the screw speed reducer can be set by designing the pitch of the screw, so that the function of reducing and increasing the moment of the screw speed reducer is realized. Compared with the traditional gear reducer, the screw rod and the sliding sleeve are simple in structure, convenient to produce and assemble and low in cost, and the screw rod and the sliding sleeve are small in abrasion during working, long in service life and small in noise, and do not need frequent maintenance. In addition, in the traditional gear reducer, the reduction ratio of the secondary gear set is low, multi-stage gear set transmission is needed when a large reduction ratio is needed, and the multi-stage gear set transmission is low in efficiency, complex in structure and high in cost. The screw rod and the sliding sleeve are matched to realize a larger reduction ratio, so that the transmission efficiency is ensured. In addition, in the conventional gear reducer, when the door body assembly is subjected to a strong impact by an external force, such as typhoon, vehicle impact, etc., the gear is easily broken by jumping teeth to cause damage. In the screw rod reducer, the sliding sleeve is matched with the screw rod in a simple structure, is tightly attached, has high strength, is not easy to damage when the door body assembly is subjected to strong impact of external force, and has strong impact resistance.

In addition, through setting up the slider on the sliding sleeve, slider and rotor arm subassembly sliding connection owing to cancelling the linking arm, practiced thrift the cost, production installation is more convenient. The sliding sleeve directly drives the rotating arm assembly to rotate, so that the driving moment is larger.

In addition, compare in the door body subassembly of speed reduction door operator lug connection in order to drive door body subassembly and rotate, through set up link assembly between speed reduction door operator and door body subassembly, can rotate the stress point of door body subassembly from the door body subassembly one end that is close to the stand subassembly to the arbitrary part between door body subassembly both ends, can prolong the arm of force of speed reduction door operator, the required output of speed reduction door operator is little, the required output's power is little, can save power.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic view of an electric door according to an embodiment of the present utility model, wherein a solid line represents a door body assembly of the electric door in a closed position, and a dotted line represents the door body assembly of the electric door in an open position;

FIG. 2 is a schematic exploded view of the speed reducing door opener of the power door of FIG. 1;

FIG. 3 is a schematic view of the interior structure of the deceleration door opener shown in FIG. 1, wherein the deceleration door opener drives the door body assembly to rotate to a door closing position;

FIG. 4 is a schematic view of the interior structure of the swing door operator of FIG. 1 in another state for an electric door, wherein the swing door operator rotates the door body assembly to the door open position;

FIG. 5 is a schematic view of the structure of the deceleration door opener and the connecting key shown in FIG. 1;

FIG. 6 is a schematic view of a drive shaft and a portion of a door body assembly of a speed reducing door opener according to another embodiment;

FIG. 7 is a schematic view of the power door of FIG. 1 at another angle;

fig. 8 is a schematic view of a structure of the electric door at the speed reduction door opener of the electric door shown in fig. 1;

FIG. 9 is a schematic view of the power door of FIG. 1 shown in exploded view;

FIG. 10 is an enlarged view of a portion at I shown in FIG. 9;

fig. 11 is a partial enlarged view at II shown in fig. 9.

The reference numerals are given in the following table:

Electric door	100	Upright post assembly	20
				Speed-reducing door opener	10	Column body	22
Motor body	11	Second wiring port	220
				Screw rod	12	Base seat	24
Sliding sleeve	13	First wiring port	240
				Sliding piece	14	First upright column rotating part	25
Rotating arm assembly	15	Mounting base	26
				Rotary arm	150	Second column rotating part	27
Guide groove	1500	Fixing seat	28
				Transmission shaft	152	Third wiring port	280
Key groove	1520	Door body assembly	30
				Connecting key	1522	Door body	32
Raised portion	1524	First door body rotating part	35
				Speed reducer shell	16	Second door rotating part	37
Outlet shaft hole	160	Connecting rod assembly	40
				First rotation shaft	S1	First connecting rod	42
Second rotation shaft	S2	Second connecting rod	44
				Third rotation shaft	S3	Recess portion	404
		Cable with improved heat dissipation	50

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "connected" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "left," "right," "upper," "lower," "top," and "bottom," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 4, an embodiment of the present utility model provides an electric door 100, which includes a speed reducing door opener 10, a column assembly 20, a door body assembly 30 and a link assembly 40. The door body assembly 30 is rotationally connected with the upright post assembly 20, the speed-reducing door opener 10 is arranged on the upright post assembly 20 and is connected with the door body assembly 30 through the connecting rod assembly 40, and the speed-reducing door opener 10 is used for driving the door body assembly 30 to rotate around the upright post assembly 20 in a horizontal plane through the connecting rod assembly 40 so as to realize the functions of opening and closing the door of the electric door 100.

The reduction door opener 10 includes a motor body 11 and a screw reducer. The screw reducer comprises a screw 12, a sliding sleeve 13, a sliding piece 14 and a rotating arm assembly 15. The motor body 11 is arranged on the upright post assembly 20, one end of the screw rod 12 is connected with an output shaft of the motor body 11, the sliding sleeve 13 is in threaded connection with the screw rod 12, the sliding piece 14 is connected with the sliding sleeve 13 and is in sliding connection with the rotating arm assembly 15, and the rotating arm assembly 15 is connected with the door body assembly 30 through the connecting rod assembly 40.

It should be noted that, the motor body 11 is disposed on the column assembly 20, and the motor body 11 may be directly disposed on the column assembly 20, or may be disposed on the column assembly 20 through a screw reducer.

In operation, the method is approximately as follows:

The output shaft of the motor body 11 rotates to drive the screw rod 12 to rotate together, the screw rod 12 drives the sliding sleeve 13 and the sliding piece 14 to move along the axial direction of the screw rod 12, and the sliding piece 14 and the rotating arm assembly 15 slide relatively during the axial movement of the screw rod 12 to drive the rotating arm assembly 15 to rotate, and the door body assembly 30 is driven to rotate through the connecting rod assembly 40 when the rotating arm assembly 15 rotates.

When the door is closed, the output shaft of the motor body 11 rotates in the first rotation direction, the screw rod 12 is driven to rotate together, the screw rod 12 drives the sliding sleeve 13 to move away from the motor body 11 along the axial direction of the screw rod 12, the sliding piece 14 slides relatively to the rotating arm assembly 15 during the axial movement of the screw rod 12, so as to drive the rotating arm assembly 15 to rotate, and the door body assembly 30 is driven to rotate through the connecting rod assembly 40 when the rotating arm assembly 15 rotates until the door body assembly 30 rotates to the door closing position, as shown in fig. 3.

When the door is opened, the output shaft of the motor body 11 rotates in the second rotation direction, the screw rod 12 is driven to rotate in the second rotation direction, the second rotation direction is opposite to the first rotation direction, the screw rod 12 drives the sliding sleeve 13 to move along the axial direction of the screw rod 12 and close to the motor body 11, the sliding piece 14 slides relatively to the rotating arm assembly 15 during the axial movement of the screw rod 12, so as to drive the rotating arm assembly 15 to rotate, and the rotating arm assembly 15 drives the door body assembly 30 to rotate through the connecting rod assembly 40 when rotating until the door body assembly 30 rotates to the door opening position, as shown in fig. 4.

The output shaft of the motor body 11 may rotate in the first rotation direction, that is, the output shaft of the motor body 11 may rotate in the forward direction, and the output shaft of the motor body 11 may rotate in the second rotation direction, that is, the output shaft of the motor body 11 may rotate in the reverse direction. Or the output shaft of the motor body 11 rotates in the first rotation direction, that is, the output shaft of the motor body 11 rotates in the opposite direction, that is, the output shaft of the motor body 11 rotates in the second rotation direction, that is, the output shaft of the motor body 11 rotates in the forward direction.

In the design stage, the reduction ratio of the screw speed reducer can be set by designing the pitch of the screw 12, thereby realizing the function of reducing and increasing the torque of the screw speed reducer. Compared with the traditional gear reducer, the screw rod 12 and the sliding sleeve 13 are simple in structure, convenient to produce and assemble and low in cost, and the screw rod 12 and the sliding sleeve 13 are small in abrasion during working, long in service life and low in noise, and do not need frequent maintenance. In addition, in the conventional gear reducer, the reduction ratio of the secondary gear group is low, and multi-stage gear set transmission is required when a large reduction ratio is required, and the multi-stage gear set transmission efficiency is low. The screw rod 12 and the sliding sleeve 13 are matched to realize a larger reduction ratio and ensure the transmission efficiency. In addition, in the conventional gear reducer, when the door body assembly 30 is subjected to a strong impact by an external force, such as typhoon, vehicle impact, etc., the gears easily bounce to the teeth, resulting in damage. In the screw rod reducer, the sliding sleeve 12 and the screw rod 13 are matched with each other in a simple structure, are tightly attached, have high strength, are not easy to damage when the door body assembly 30 is subjected to strong impact of external force, and have strong impact resistance.

In addition, compared with the arrangement of the connecting arm between the sliding sleeve 13 and the rotating arm assembly 15, one end of the connecting arm is required to be rotatably connected with the sliding sleeve 13, and the other end is required to be rotatably connected with the rotating arm assembly 15. By arranging the sliding piece 14 on the sliding sleeve 13, the sliding piece 14 is in sliding connection with the rotating arm assembly 15, and the connecting arm is omitted, so that the cost is saved, and the production and the installation are more convenient. The sliding sleeve 13 directly drives the rotating arm assembly 15 to rotate, so that the driving moment is larger.

In addition, compare in the door body subassembly 30 of speed reduction door operator 10 direct connection in order to drive door body subassembly 30 and rotate, through set up link assembly 30 between speed reduction door operator 10 and door body subassembly 30, can rotate the stress point of door body subassembly 30 from door body subassembly 30 to be close to the one end of stand subassembly 20 to the arbitrary part between door body subassembly 30 both ends, can prolong the arm of force of speed reduction door operator 10, the required output of speed reduction door operator 10 is little, the required output's power is little, can save power.

The motor body 11 can be transversely arranged, and the axis of the output shaft of the motor body 11 is horizontally arranged. The axis of the screw 12 may coincide with the axis of the output shaft of the motor body 11, and the screw speed reducer is disposed on the horizontal side of the motor body 11. Compared with the screw rod speed reducer arranged on the vertical side of the motor body 11, the screw rod speed reducer arranged on the horizontal side of the motor body 11 can effectively reduce the overall height of the speed reduction door opener 10, the structure is compact, and the speed reduction door opener 10 cannot excessively increase the overall height of the speed reduction door opener 10 and the upright post assembly 20 when arranged on the top of the upright post assembly 20.

The screw rod 12 can be a ball screw rod, and can be replaced by a trapezoidal screw rod according to actual needs.

The sliding sleeve 13 can be a ball nut, and can be replaced by a plastic nut made of wear-resistant materials according to actual needs, and the plastic nut has a self-lubricating function, low noise and high durability.

The rotating arm assembly 15 is provided with a guide groove 1500, the sliding piece 14 is in sliding fit with the guide groove 1500, the guide groove 1500 has a guiding function, and when the sliding sleeve 13 moves along the axial direction of the screw rod 12, the guide groove 1500 guides the sliding piece 14 to slide along the guide groove 1500, so that the sliding piece is in sliding connection with the rotating arm assembly.

The guide slot 1500 may be a bar-shaped slot that extends along a horizontal line, and when the door assembly 30 is rotated to the door-closed position, the slider 14 slides to one end of the guide slot 1500, and when the door assembly 30 is rotated to the door-open position, the slider 14 slides to the other end of the guide slot 1500 back to the original end of the guide slot 1500. The guide groove 1500 has two opposite groove walls, which also extend along the horizontal straight line.

The slider 14 may be a rectangular block. The rectangular block body has two opposite side surfaces, and the two side surfaces contact the two groove walls, so that the surface contact of the sliding piece 14 and the rotating arm assembly 15 is realized, the stability is good, a larger contact area and better rigidity can be provided, and the connection reliability of the sliding piece 14 and the rotating arm assembly 15 is ensured.

The sliding piece 14 can be rotationally connected with the sliding sleeve 13 through a first rotating shaft S1, and the axis of the first rotating shaft S1 is a vertical axis and is perpendicular to the axis of the output shaft of the motor body 11. The slider 14 is rotatable relative to the slide sleeve 13 as the slider 14 moves in the axial direction of the screw 12, the slider 14 being held in surface contact with the rotating arm assembly 15.

It will be appreciated that, according to practical needs, the sliding member 14 may be a circular block, that is, a relatively flat cylinder, and the sliding member 14 has an outer cylindrical surface, and the outer cylindrical surface contacts with two groove walls of the guide groove 1500, so that the sliding member 14 is in line contact with the rotating arm assembly 15, and can bear a relatively large load. In addition, when the sliding member 14 is a circular block, the sliding member 14 may be fixedly connected to the sliding sleeve 13, and when the sliding member 14 moves in the axial direction of the screw rod, the outer cylindrical surface may be in line contact with both groove walls of the guide groove 1500. Of course, when the sliding piece 14 is a circular block, the sliding piece 14 can be rotationally connected with the sliding sleeve 13, when the sliding piece 14 moves along the axial direction of the screw rod 12, the sliding piece 14 can rotate to convert the friction between the sliding piece 14 and the rotating arm assembly 15 from sliding friction to rolling friction, so that the friction between the sliding piece 14 and the rotating arm assembly 1 can be reduced, and the sliding of the sliding piece 14 and the rotating arm assembly 15 is smoother.

It will be appreciated that, according to practical needs, the motor body 11 may also be vertically disposed, in some other embodiments, the axis of the output shaft of the motor body 11 is vertically disposed, the axis of the screw rod 12 is coincident with the axis of the output shaft of the motor body 11, the axis of the first rotating shaft S1 is horizontally disposed and is perpendicular to the axis of the output shaft of the motor body 11, the rotating arm assembly 15 may rotate in a vertical plane, and the rotating arm assembly 15 and the connecting rod assembly 40 may be connected through a reversing mechanism, so as to convert the rotation of the rotating arm assembly 15 in the vertical plane into the rotation in a horizontal plane. The reversing mechanism can be a bevel gear set, a worm gear and the like.

The rotating arm assembly 15 includes a rotating arm 150 and a drive shaft 152. The rotating arm 150 is provided with a guide groove 1500, the length direction of the rotating arm 150 is identical to the length direction of the guide groove 1500, and one end of the rotating arm 150 is fixedly connected with the transmission shaft 152. The drive shaft 152 is fixedly coupled to the door assembly 30 via the link assembly 40. By providing the rotating arm 150 and the transmission shaft 152 between the link assembly 40 and the slider 14, the rotating arm 150 can be used as an extension structure of the link assembly 40 in the horizontal direction, the transmission shaft 152 can be used as an extension structure of the link assembly 40 in the vertical direction, the connection between the slider 14 and the link assembly 40 is facilitated, the original structure of the link assembly 40 does not need to be changed greatly, and the workload of redesigning the link assembly 40 can be reduced.

The axis of the drive shaft 152 is disposed vertically. It will be appreciated that, as previously described, in other embodiments, the axis of the output shaft of the motor body 11 may be disposed vertically, and the axis of the transmission shaft 282 may be disposed horizontally, so that the transmission shaft 282 may be connected to the link assembly 40 via a reversing mechanism.

In some embodiments, the sliders 14 may have two, the two sliders 14 may be symmetrically distributed, the rotating arms 150 may have two, and the two rotating arms 150 may be symmetrically distributed. The sliding members 14 are respectively arranged on two sides of the sliding sleeve 13, each sliding member 14 is in sliding fit with a guide groove 1500 of a corresponding rotating arm 150, one end of each rotating arm 150 is connected with the transmission shaft 152, one rotating arm 150 is close to one end of the transmission shaft 152, and the other rotating arm 150 is close to the other end of the transmission shaft 152. The two sliding parts 14 and the rotating arm 150 are uniformly stressed and stably driven.

Referring to fig. 5, a key slot 1520 is provided at a peripheral portion of the driving shaft 152, and the key slot 1520 is used for providing a connection key 1522. The transmission shaft 152 is inserted into the link assembly 40, the key slot 1520 is disposed between the transmission shaft 152 and the link assembly 40, and the connection key 1522 can transmit torque between the transmission shaft 152 and the link assembly 40 to achieve that the transmission shaft 152 remains circumferentially fixed with the link assembly 40.

It will be appreciated that, according to practical needs, the transmission shaft 152 and the connecting rod assembly 40 are not limited to transmitting torque through the connection key 1522, referring to fig. 6, in other embodiments, the end surface of the transmission shaft 152 is convexly provided with a protrusion 1524, the connecting rod assembly 40 is provided with a recess 404 with a shape matched with the protrusion 1524, and the protrusion 1524 is inserted into the recess 404 to be limited and fixed circumferentially, so that torque can be transmitted between the transmission shaft 152 and the connecting rod assembly 40, so as to keep the transmission shaft 152 fixed with the connecting rod assembly 40 circumferentially.

The protrusion 1524 may be specifically a cross protrusion, and the recess 404 may be specifically a cross groove. The cross bulge and the cross groove are matched and stressed uniformly, the connection is tight, and the operation is more stable. In other embodiments, the transmission shaft 152 may be flattened, attached by screws, welded directly, etc. to the connecting rod assembly 40.

The screw decelerator includes a decelerator housing 16. The reducer housing 16 is connected to the motor body 10, and the screw 12, the slide sleeve 13, the slider 14, the rotating arm 150, and the transmission shaft 152 are accommodated in the reducer housing 16. The reducer housing 16 is provided with an outlet shaft bore 160. The drive shaft 152 extends from the output shaft aperture 160. The inner structure of the screw speed reducer can be separated from the outside by the speed reducer shell 16, an independent working environment is provided for the screw speed reducer, the working stability of the screw speed reducer is improved, the inner structure of the screw speed reducer is protected, and noise generated by the screw speed reducer during working can be isolated to a certain extent.

Bearings may be provided between the drive shaft 152 and the reducer housing 16 for supporting the drive shaft 152.

The sliding sleeve 13, the rotating arm 150 and the reducer casing 16 can be metal pieces, and can be formed by die casting through a die, so that the production efficiency is high, and the installation accuracy is high. It will be appreciated that the sliding sleeve 13, the rotating arm 150 and the reducer housing 16 may be replaced with plastic materials, as desired.

In some embodiments, the screw reducer may include a stop assembly. The limiting component is arranged on the rotating stroke of the rotating arm 150, when the rotating arm 150 rotates to abut against the limiting component, the rotating arm 150 drives the door body component 30 to rotate to a door opening position or a door closing position through the connecting rod component 40, the limiting component can prevent the rotating arm 150 from continuing to rotate along the current rotating direction, and mechanical limiting can be realized when the control system is out of order, so that the door body component 30 is prevented from exceeding the limiting and colliding with a vehicle or passersby.

The spacing assembly may include a first spacing assembly and a second spacing assembly.

When the rotating arm 150 rotates to abut against the first limiting component, the rotating arm 150 drives the door body component 30 to rotate to the door closing position through the connecting rod component 40, and the first limiting component can prevent the rotating arm 150 from continuing to rotate, so that the door body component 30 is prevented from crossing the door closing position.

When the rotating arm 150 rotates to abut against the second limiting component, the rotating arm 150 drives the door body component 30 to rotate to the door opening position through the connecting rod component 40, and the second limiting component can prevent the rotating arm 150 from continuing to rotate, so that the door body component 30 is prevented from crossing the door opening position.

Referring to fig. 7 to 11, the pillar assembly 20 may include a pillar body 22, a base 24, a mounting base 26, a fixing base 28, a protection cover, and a pillar turning portion. The stand body 22 is vertically arranged, one end of the stand body 22 is connected with the base 24, and the other end of the stand body 22 is connected with the mounting seat 26. The base 24 is used for being fixed on the ground, and the door body assembly 30 is rotationally connected with the upright column rotating part, and the axis of the upright column rotating part is vertically arranged. The fixing base 29 is arranged on the side face of the upright post body 22, the speed reduction door opener 10 is arranged on the fixing base 29, and compared with the speed reduction door opener 10 arranged on the mounting base 46, the speed reduction door opener 10 is arranged on the fixing base 29, so that the whole height of the upright post assembly 20 cannot be increased, and the structure is compact. The protection cover contains the speed-reducing door opener 10 and is used for protecting the speed-reducing door opener 10, so that external water vapor and dust can be isolated, the speed-reducing door opener 10 can be protected, and noise generated during the operation of the speed-reducing door opener 10 can be isolated to a certain extent.

The column rotation part includes a first column rotation part 25 and a second column rotation part 27. The first column rotation portion 25 is provided on the base 24, and an axis of the first column rotation portion 25 is vertically provided. The second column rotating part 27 is arranged on the mounting seat 26, the axis of the second column rotating part 27 coincides with the axis of the first column rotating part 25, and the first column rotating part 25 and the second column rotating part 27 are jointly used for rotationally connecting the door body assembly 30. By arranging the first upright rotating part 25 and the second upright rotating part 27, the weight of the door body assembly 30 can be spread out by the two upright rotating parts, and the supporting effect is good and the service life is long.

It will be appreciated that one of the first and second column turns 25, 27 may be omitted and a single column turn may support the door assembly 30, as desired.

The mounting bracket 28 is provided with a relief opening for the passage of the drive shaft 152 for connection with the linkage assembly 40.

The post body 22 may be provided with a routing channel, the base 24 may be provided with a first routing port 240, the side of the post body 22 may be provided with a second routing port 220, and the holder 28 may be provided with a third routing port 280. The cable 50 buried in the ground or the ground may be connected to the motor body 11 through the first wiring port 240, the wiring channel, the second wiring port 220, and the third wiring port 280 in order to supply the motor body 11 with electric power.

The door assembly 30 may include a door body 32 and a door rotating portion. The door body rotating portion is connected to the door body 32 and rotatably connected to the column assembly 30. The door rotating portion includes a first door rotating portion 35 and a second door rotating portion 37. The first door body rotating part 35 and the second door body rotating part 37 are arranged on two sides of the door body 32, the axis of the first door body rotating part 35 is overlapped with the axis of the first upright column rotating part 25, the first door body rotating part 35 is rotationally connected with the first upright column rotating part 25, the axis of the second door body rotating part 37 is overlapped with the axis of the second upright column rotating part 27, and the second door body rotating part 37 is rotationally connected with the second upright column rotating part 27.

The first upright rotating portion 25 may be a lower connecting shaft, the first door rotating portion 35 may be a lower connecting shaft seat, and according to actual needs, the first upright rotating portion 25 may also be a lower connecting shaft seat, and the first door rotating portion 35 may also be a lower connecting shaft.

The second column rotating portion 27 may be an upper connection shaft hole formed in the mounting base 26, the second door rotating portion 37 may be an upper connection shaft, and according to actual needs, the second column rotating portion 27 may be an upper connection shaft, and the second door rotating portion 37 may be an upper connection shaft hole formed in the door body 32.

The linkage assembly 40 includes a first link 42 and a second link 44. One end of the first connecting rod 42 is fixedly connected with the transmission shaft 152, the other end of the first connecting rod 42 is rotatably connected with one end of the second connecting rod 44, and the other end of the second connecting rod 44 is rotatably connected with the door body assembly 30.

One end of the first link 42 may be provided with a fixing hole, the transmission shaft 152 is inserted into the fixing hole, and a connection key 1522 is provided between the transmission shaft 152 and the fixing hole, so as to connect the transmission shaft 152 with one end of the first link 42.

It will be appreciated that, as previously described, in some other embodiments, the drive shaft 152 may be provided with a protrusion 1524, the link assembly 40 may be provided with a recess 404, the insertion of the protrusion 1524 into the recess 404 may also enable the drive shaft 152 to remain circumferentially fixed with the link assembly 40, and the recess 404 may be provided on one end of the first link 42.

The other end of the first link 42 may be connected to one end of the second link 44 through a second rotation shaft S2, and the axis of the second rotation shaft S2 is vertically disposed.

The other end of the second link 44 may be connected to the door body 32 through a third rotation shaft S3, and an axis of the third connection shaft S3 is vertically disposed.

Compared with the prior art, the present embodiment provides an electric door 100, when the motor body 11 drives the screw rod 12 to rotate, the sliding sleeve 13 moves along the axial direction of the screw rod 12, and the sliding piece 14 and the rotating arm assembly 15 slide relatively during the movement, so that the rotating arm assembly 15 rotates, and when the rotating arm assembly 15 rotates, the door body assembly 30 is driven to rotate by the connecting rod assembly 40. In the design stage, the reduction ratio of the screw speed reducer can be set by designing the pitch of the screw 12, thereby realizing the function of reducing and increasing the torque of the screw speed reducer. Compared with the traditional gear reducer, the screw rod 12 and the sliding sleeve 13 are simple in structure, convenient to produce and assemble and low in cost, and the screw rod 12 and the sliding sleeve 13 are small in abrasion during working, long in service life and low in noise, and do not need frequent maintenance. In addition, in the traditional gear reducer, the reduction ratio of the secondary gear set is low, multi-stage gear set transmission is needed when a large reduction ratio is needed, and the multi-stage gear set transmission is low in efficiency, complex in structure and high in cost. The screw rod 12 and the sliding sleeve 13 are matched to realize a larger reduction ratio and ensure the transmission efficiency. In addition, in the conventional gear reducer, when the door body assembly 30 is subjected to a strong impact by an external force, such as typhoon, vehicle impact, etc., the gears easily bounce to the teeth, resulting in damage. In the screw rod reducer, the sliding sleeve 12 and the screw rod 13 are matched with each other in a simple structure, are tightly attached, have high strength, are not easy to damage when the door body assembly 30 is subjected to strong impact of external force, and have strong impact resistance.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order, and there are many other variations of the different aspects of the utility model as above, which are not provided in details for the sake of brevity; while the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The electric door is characterized by comprising a stand column assembly, a door body assembly, a connecting rod assembly and a speed-reducing door opener, wherein the speed-reducing door opener comprises a motor body, a screw rod, a sliding sleeve, a sliding piece and a rotating arm assembly;

The door body assembly is rotationally connected with the upright post assembly, the motor body is arranged on the upright post assembly, one end of the screw rod is connected with an output shaft of the motor body, the sliding sleeve is in threaded connection with the screw rod, the sliding piece is connected with the sliding sleeve and is in sliding connection with the rotating arm assembly, and the rotating arm assembly is connected with the door body assembly;

When the motor body drives the screw rod to rotate, the sliding sleeve moves along the axial direction of the screw rod, and during the axial movement, the sliding piece and the rotating arm assembly slide relatively, so that the rotating arm assembly rotates, and when the rotating arm assembly rotates, the door body assembly is driven to rotate through the connecting rod assembly.

2. A power door according to claim 1, wherein the rotating arm assembly is provided with a guide groove, the slider being in sliding engagement with the guide groove, the guide groove extending in a straight line.

3. The power door of claim 2, wherein the slider is rotatably coupled to the sliding sleeve.

4. A power door according to claim 3, wherein the slider is a rectangular or circular block.

5. The power door of claim 2, wherein the rotating arm assembly includes a rotating arm and a drive shaft;

the guide slot is arranged on the rotating arm, one end of the rotating arm is connected with the transmission shaft, and one end of the transmission shaft is connected with the door body assembly.

6. The power door of claim 5, wherein the linkage assembly includes a first linkage and a second linkage;

One end of the first connecting rod is connected with the transmission shaft, the other end of the first connecting rod is rotationally connected with one end of the second connecting rod, and the other end of the second connecting rod is rotationally connected with the door body assembly.

7. The power door as claimed in claim 6, wherein the first link is provided with a fixing hole, the driving shaft is inserted into the fixing hole, and a connection key is provided between the fixing hole and the driving shaft; or alternatively

The first connecting rod is provided with a concave part, the end face of the transmission shaft is provided with a convex part, the convex part is matched with the shape of the concave part, and the convex part is inserted into the concave part and then is limited and fixed in the circumferential direction.

8. The power door of claim 6, wherein the post assembly comprises a post body, a base, a first post rotation portion, a mount, a second post rotation portion, and a fixed seat; the door body assembly comprises a door body, a first door body rotating part and a second door body rotating part;

The upright post body is vertically arranged, one end of the upright post body is connected with the base, and the other end of the upright post body is connected with the mounting seat;

The first door body rotating part and the second door body rotating part are connected with the door body;

The first upright column rotating part is arranged on the base and is rotationally connected with the first door body rotating part;

The second upright column rotating part is arranged on the mounting seat and is rotationally connected with the second door body rotating part;

The fixed seat is arranged on the side surface of the upright post body, and the speed-reducing door opener is arranged on the fixed seat; the other end of the second connecting rod is rotationally connected with the door body.

9. The electric door according to claim 8, wherein an axis of the motor body output shaft is horizontally arranged, an axis of the screw rod coincides with an axis of the motor body output shaft, and an axis of the transmission shaft is vertically arranged and coincides with an axis of the first door body rotating portion; or alternatively

The axis of the motor body output shaft is vertically arranged, the axis of the screw rod is coincident with the axis of the motor body output shaft, the axis of the transmission shaft is horizontally arranged, and the transmission shaft is connected with the first connecting rod through a reversing mechanism.

10. The power door of claim 5, wherein the slider has two and the rotating arm has two;

The sliding sleeve is characterized in that two sliding pieces are respectively arranged on two sides of the sliding sleeve, each sliding piece is in sliding fit with a corresponding sliding groove of the corresponding rotating arm, one end of each rotating arm is connected with the transmission shaft, one rotating arm is close to one end of the transmission shaft, and the other rotating arm is close to the other end of the transmission shaft.