CN220979193U - 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 motor body, a screw rod, a sliding sleeve, a sliding piece and a rotating arm assembly. The door body assembly rotates and connects the stand subassembly, and motor body locates the stand subassembly, and motor body is connected to the lead screw, sliding sleeve spiro union lead screw, and the sliding part is connected the sliding sleeve, and the rotor arm subassembly is equipped with the guide slot, and the guide slot is provided with the auto-lock portion, and slider and guide slot sliding fit, rotor arm subassembly connect the door body assembly. When the motor body drives the screw rod to rotate, the sliding sleeve and the sliding piece move along the screw rod, and the sliding piece slides along the guide groove during the movement so as to drive the rotating arm assembly and the door body assembly to rotate, and the sliding piece is self-locking when the door body assembly opens or closes in place. The speed reduction ratio can be set through the pitch of the design screw rod, so that speed reduction and moment increase are realized. Compared with the traditional gear reducer, the screw rod and the sliding sleeve are simple in structure, convenient to produce and assemble, low in cost, small in abrasion during working of the screw rod and the sliding sleeve, long in service life, small in noise and free from frequent maintenance.

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 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 utility model solves the technical problems by adopting the following technical scheme: the electric door comprises a stand column assembly, a door body assembly and a speed reduction door operator, wherein the speed reduction door operator 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, the rotating arm assembly is provided with a guide groove, the sliding piece is in sliding fit with the guide groove, the guide groove is provided with a self-locking part, 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 and the sliding piece axially move along the screw rod, and during the axial movement of the sliding sleeve and the sliding piece, the sliding piece slides along the guide groove so as to drive the rotating arm assembly and the door body assembly to rotate, and when the door body assembly opens or closes in place, the sliding piece slides to the self-locking part so as to be self-locked.

In some embodiments, the guide groove is a "U" shaped guide groove, two ends of the "U" shaped guide groove are respectively provided with a first groove portion and a second groove portion, the first groove portion and the second groove portion are the self-locking portions, and when the sliding piece moves to the first groove portion or the second groove portion, an included angle between the direction of axial movement of the sliding piece along the screw rod and the direction of movement of the sliding piece along the "U" shaped guide groove is greater than or equal to zero and less than 10 ° so that the sliding piece is self-locked.

In some embodiments, the guide groove is an S-shaped guide groove, the S-shaped guide groove is provided with a third groove portion and a fourth groove portion, the third groove portion and the fourth groove portion are the self-locking portions, and when the sliding piece moves to the third groove portion or the fourth groove portion, an included angle between the direction of axial movement of the sliding piece along the screw rod and the direction of movement of the sliding piece along the S-shaped guide groove is greater than or equal to zero and less than 10 degrees, so that the sliding piece is self-locked.

In some embodiments, the sliding member is rotatably connected to the sliding sleeve, and the sliding member is a 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 door assembly includes a door body and a door rotating portion; the door body rotating part is connected with the door body and is rotationally connected with the upright post assembly, and the transmission shaft is connected with the door body rotating part.

In some embodiments, the door body rotating part 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 door body rotating part 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.

In some embodiments, the column assembly includes a column body, a base, a first column rotational portion, a mount, and a second column rotational portion; the door body rotating part comprises 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 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 speed-reducing door opener is arranged on the base, and the transmission shaft is connected with the first door body rotating part; or the speed-reducing door opener is arranged on the mounting seat, and the transmission shaft is connected with the second door body rotating part.

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 door body rotating part 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 and the sliding piece move along the axial direction of the screw rod, and the sliding piece slides along the guide groove during the axial movement of the screw rod so as to drive the rotating arm assembly and the door body assembly to rotate. 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, compared with the arrangement of the connecting arm between the sliding sleeve and the rotating arm assembly, one end of the connecting arm is required to be rotationally connected with the sliding sleeve, and the other end of the connecting arm is required to be rotationally connected with the rotating arm assembly. Through setting up the slider on the sliding sleeve, slider and rotor arm subassembly sliding connection owing to cancelled 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. And the self-locking part is arranged through the guide groove, so that the sliding part is self-locked when the door body assembly is opened or closed in place, and the door body assembly can be prevented from accidentally rotating when being subjected to external force, such as strong wind, vehicle collision or manual push-pull.

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 structural view of an electric door according to an embodiment of the present utility model;

FIG. 2 is a schematic exploded view of the power door of FIG. 1 with the protective cover of the power door removed to expose the interior of the speed reducing door opener;

FIG. 3 is a schematic view of the structure of the power door of FIG. 1 in operation, wherein the solid line represents the door body assembly of the power door in the closed position and the broken line represents the door body assembly of the power door in the open position;

FIG. 4 is a schematic view of the interior of the deceleration door operator of the electric door of FIG. 1, wherein the deceleration door operator rotates the door body assembly to the closed position;

FIG. 5 is a schematic view of the interior structure of the electric door of FIG. 1 in another state, wherein the electric door is rotated by the door body assembly to a door open position;

Fig. 6 to 10 are schematic views showing a sliding member of the speed reduction door opener shown in fig. 4 moving to different positions along a guide groove;

FIG. 11 is a schematic view of the slide of the reduction door operator of FIG. 4 in a fully self-locking condition;

FIG. 12 is a schematic view of the slide of the reduction door operator of FIG. 4 in a relatively self-locking condition;

FIG. 13 is a schematic view of an internal structure of a speed reduction door operator according to another embodiment, wherein the speed reduction door operator drives the door body assembly to rotate to a door-closed position;

FIG. 14 is a schematic view of the deceleration door opener of FIG. 13 in another state, wherein the deceleration door opener rotates the door body assembly to the door opening position;

Fig. 15 to 18 are schematic views showing the sliding member of the speed reduction door opener shown in fig. 13 moving to different positions along the guide groove;

FIG. 19 is a schematic view of the deceleration door opener and the connecting key shown in FIG. 4;

FIG. 20 is a schematic view of a drive shaft and a portion of a door body assembly of a speed reducing door operator according to yet another embodiment;

FIG. 21 is a schematic structural view of the pillar assembly of the power door of FIG. 1;

FIG. 22 is a schematic view of the base and perimeter of the column assembly of FIG. 21;

fig. 23 is a schematic view of the mounting base and periphery of the column assembly of fig. 21.

The reference numerals are given in the following table:

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 3, an embodiment of the present utility model provides an electric door 100, which includes a speed-reducing door opener 10, a column assembly 20 and a door body assembly 30. The door body assembly 30 is rotationally connected with the upright post assembly 20, the speed-reducing door opener 10 is arranged between the upright post assembly 20 and the door body assembly 30, 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 so as to realize the function of opening and closing the door of the electric door 100.

Referring to fig. 4 and 5, 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 sets up in stand subassembly 20, and the output shaft of motor body 11 is connected to lead screw 12 one end, and sliding sleeve 13 and lead screw 12 spiro union, sliding part 14 connect sliding sleeve 13, and rotor arm subassembly 15 is provided with guide slot 1500, and sliding part 14 and guide slot 1500 sliding fit, rotor arm subassembly 15 connect door body subassembly 30. The guide groove 1500 is provided with a self-locking portion.

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 slides along the guide groove 1500 during the axial movement of the sliding piece 14 along the screw rod 12 so as to drive the rotating arm assembly 15 and the door body assembly 30 to rotate. When the door body assembly 30 is opened or closed in place, the sliding member 14 slides to the self-locking portion to be self-locked, so that the door body assembly 30 can be prevented from being accidentally rotated when being subjected to external force, such as strong wind, vehicle collision or manual push-pull.

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, and the sliding piece 14 slides to one end of the guide groove 1500 during the axial movement of the screw rod 12, so as to drive the rotating arm assembly 15 and the door body assembly 30 to rotate until the door body assembly 30 rotates to the door closing position, as shown in fig. 4. When the door assembly 30 is rotated to the closed position, i.e., the door is closed in place, the slide 14 slides to the self-locking portion for self-locking.

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, and the sliding piece 14 slides to the other end of the guide groove 1500 during the axial movement of the screw rod 12, so as to drive the rotating arm assembly 15 and the door body assembly 30 to rotate until the door body assembly 30 rotates to the door opening position, as shown in fig. 5. When the door assembly 30 is rotated to the open position, i.e., the door is open in place, the slide 14 slides to the self-locking portion to be self-locking.

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 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.

In addition, as compared to providing a connecting arm between the slide sleeve 13 and the rotating arm assembly 15, the connecting arm needs to be rotatably connected to the slide sleeve 13 at one end and the rotating arm assembly 15 at the other end. 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, the guide groove 1500 is provided with a self-locking part, so that the sliding piece 14 can be self-locked when the door body assembly 30 is opened or closed in place, and the door body assembly 30 can be prevented from rotating accidentally when being subjected to external force, such as strong wind, vehicle collision or manual push-pull.

In some embodiments, under the condition that the rotation speed of the screw rod 12 is constant, the rotation speed of the door body assembly 30 is increased and then reduced during operation, the rotation speed of the door body assembly 30 is increased at the first half of operation, the door body assembly 30 can rotate in place faster, the operation efficiency is high, the rotation speed of the door body assembly 30 is reduced at the second half of operation, the situation that the rotation speed of the door body assembly 30 is too high and collides with limiting can be avoided, and the door body assembly 30 and limiting function can be played. Of course, the rotational speed of the door assembly 30 may also be made constant by varying the rotational speed of the screw 12. Hereinafter, the case where the rotational speed of the screw 12 is constant will be described as an example.

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 slide 14 may be a circular block. The sliding piece 14 can be rotationally connected with the sliding sleeve 13, when the sliding piece 14 slides along the guide groove 1500, the sliding piece 14 can rotate along the wall of the guide groove so as to convert the friction between the sliding piece 14 and the wall of the guide groove 1500 from sliding friction to rolling friction, the friction between the sliding piece 14 and the wall of the guide groove 1500 is small, the sliding of the sliding piece 14 along the guide groove 1500 is smoother, and the noise is small.

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 slide 14 may be a bearing.

It will be appreciated that, according to actual 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 door body assembly 30 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.

Referring to fig. 6-10, in some embodiments, the guide 1500 is a "U" shaped guide. In the process that the sliding piece 14 slides from one end to the other end of the U-shaped guide groove, the included angle between the direction A of the axial movement of the sliding piece 14 along the screw rod 12 and the direction B of the sliding piece 14 along the U-shaped guide groove is firstly increased and then decreased, so that the rotating speeds of the rotating arm assembly 15 and the door body assembly 30 are firstly increased and then decreased. Compare at the constant speed in door body subassembly 30 rotation to the position of opening the door or closing the door, through rotating door body subassembly 30 to the first half of opening the door or closing the door the position set up to rotate with higher speed, can improve door body subassembly 30 rotation speed, door body subassembly 30 can rotate to the position of opening the door or closing the door more fast, and efficiency is higher, through rotating door body subassembly 30 to the latter half of opening the door or closing the door the position set up to the speed reduction rotation, can avoid door body subassembly 30's rotational speed too fast to collide limit structure.

The direction a of the axial movement of the slider 14 along the screw 12 is always constant, and the direction of the movement of the slider 14 along the "U" shaped guide groove is changed according to the different positions of the slider 14 along the "U" shaped guide groove, so that the included angle between the direction a of the axial movement of the slider 14 along the screw 12 and the direction B of the movement of the slider 14 along the "U" shaped guide groove is constantly changed.

If the included angle between the direction a of the axial movement of the sliding member 14 along the screw rod 12 and the direction B of the axial movement of the sliding member 14 along the U-shaped guide groove becomes larger during the movement of the sliding member 14 along the U-shaped guide groove, the acting force of the sliding member 14 on the rotating arm assembly 15 becomes larger in the direction perpendicular to the rotation center line of the screw rod 12, that is, the acting component force of the sliding member 14 on the rotating arm assembly 15 in the rotation direction becomes larger, so that the speed of the sliding member 14 pushing the rotating arm assembly 15 to swing becomes faster, thereby driving the door body assembly 30 to rotate in an accelerating manner; if the included angle between the direction a of the axial movement of the slider 14 along the screw 12 and the direction B of the axial movement of the slider 14 along the U-shaped guide groove becomes smaller during the movement of the slider 14 along the U-shaped guide groove, the acting force of the slider 14 on the rotating arm assembly 15 becomes smaller in the direction perpendicular to the rotation center line of the screw 12, that is, the acting component force of the slider 14 on the rotating arm assembly 15 in the rotation direction becomes smaller, so that the swing speed of the slider 14 pushing the rotating arm assembly 15 becomes slower, thereby driving the door assembly 30 to rotate at a reduced speed.

The two ends of the "U" shaped channel are provided with a first slot portion 1502 and a second slot portion 1504, respectively. The first slot 1502 and the second slot 1504 are self-locking portions. When the slider 14 moves to the first groove portion 1502 or the second groove portion 1504, the angle between the direction a in which the slider 14 moves along the axial direction of the screw 12 and the direction B in which the slider 14 moves along the "U" -shaped guide groove is zero or more and less than 10 °.

Specifically, referring to fig. 6, when the slider 14 moves to the first groove 1502, the angle between the direction a of the axial movement of the slider 14 along the screw 12 and the direction B of the movement of the slider 14 along the "U" shaped guide groove is zero or more and less than 10 °.

Specifically, referring to fig. 10, when the slider 14 moves to the second groove portion 1504, the angle between the direction a of the axial movement of the slider 14 along the screw 12 and the direction B of the movement of the slider 14 along the "U" -shaped guide groove is zero or more and less than 10 °.

When the angle between the direction a and the direction B is equal to zero, the sliding member 14 is in a completely self-locking state, that is, the motor body 11 cannot rotate the door body assembly 30 at all by externally applying a force to the door body assembly 30 in a non-energized state. When the included angle between the direction a and the direction B is greater than zero and less than 10 °, the sliding member 14 is in a relatively self-locking state, which is a relatively completely self-locking state, that is, the motor body 11 applies a small force to the door body assembly 30 from the outside in the non-energized state, and cannot rotate the door body assembly 30, so that a very large force needs to be applied to the door body assembly 30 from the outside to rotate the door body assembly 30. The closer the included angle between the direction a of axial movement of the slider along the screw 12 and the direction B of movement of the slider 14 along the guide slot 1500 is to zero, the closer the slider 14 is in a relatively self-locking state.

Referring to fig. 11, when the included angle between the direction a of the axial movement of the slider 14 along the screw rod 12 and the direction B of the movement of the slider 14 along the "U" shaped guide groove is zero, if an external force is applied to the door assembly 30 to rotate the door assembly 30, the external force is transmitted to the rotating arm assembly 15 through the door assembly 30, and is converted into a rotating force F1 acting on the rotating arm assembly 15, the rotating force F1 acts on the slider 14, and is converted into a thrust force F2 acting on the slider 14, and the thrust force F2 is perpendicular to the direction a. Since there is no thrust force acting on the slide 14 in the direction a, the slide 14 cannot move in the direction a, so that the slide 14 is in a completely self-locking state.

Referring to fig. 12, when the included angle between the direction a of the axial movement of the sliding member 14 along the screw rod 12 and the direction B of the movement of the sliding member 14 along the U-shaped guide groove is greater than zero and less than 10 °, if an external force is applied to the door body assembly 30 to rotate the door body assembly 30, the external force is transmitted to the rotating arm assembly 15 through the door body assembly 30, and is converted into a rotating force F1 acting on the rotating arm assembly 15, the rotating force F1 acts on the sliding member 14 and is converted into a thrust force F2 acting on the sliding member 14, and the included angle between the thrust force F2 and the direction a is less than 90 ° and greater than 80 °. Since the component of the pushing force F2 in the direction a is small, a very large pushing force F2 is required to push the sliding member 14 to move in the direction a, and the sliding member 14 is in a relatively self-locking state.

In some embodiments, the angle between the direction a of axial movement of the slider 14 along the lead screw 12 and the direction B of movement of the slider 14 along the guide slot 1500 may be 1 °,4 °,7 °,9 °, or 10 ° when the slider 14 slides into the first slot 1502 or the second slot 1504.

In some embodiments, when the slider 14 is positioned in the first slot portion 1502 or the second slot portion 1504, the slider 14 does not contact the end of the "U" shaped channel. If there is a misalignment in the installation of the door assembly 30, the distance between the slider 14 and the end of the "U" shaped channel facilitates the adjustment of the biased door assembly 30 into position.

In some embodiments, the door assembly 30 rotates to the closed door position when the first slot portion 1502 is in a fully self-locking state or a relatively self-locking state, and the door assembly 30 rotates to the open door position when the second slot portion 1504 is in a fully self-locking or a relatively self-locking state.

It will be appreciated that, depending on the actual needs, half of the symmetry of the "U" shaped channel may be omitted, and the slider 14 slides along the "U" shaped channel to slow or accelerate the rotation of the rotating arm assembly 15 and the door assembly 30.

Referring to fig. 13 and 14, in some embodiments, the guide slot 1500 is an "S" shaped guide slot. The "S" shaped guide groove is provided with a third groove portion 1506, a fourth groove portion 1508, and a fifth groove portion 1509. The fourth groove 1508 is located between the third groove 1506 and the fifth groove 1509. The third slot portion 1506 and the fourth slot portion 1508 are self-locking portions. When the slider 14 moves to the third groove portion 1506 or the fourth groove portion 1508, an angle between the direction a in which the slider 14 moves in the axial direction of the screw 12 and the direction B in which the slider 14 moves in the "S" -shaped guide groove is equal to or greater than zero and less than 10 °.

Referring to fig. 15 to 18, in the process that the sliding member 14 moves from the third groove portion 1506 to the fifth groove portion 1509 through the fourth groove portion 1508, and then returns from the fifth groove portion 1509 to the fourth groove portion 1508, the angle between the direction a in which the sliding member 14 moves along the axial direction of the screw rod 12 and the direction B in which the sliding member 14 moves along the S-shaped guide groove becomes larger and smaller, so that the sliding member 14 drives the rotating arm assembly 15 and the door body assembly 30 to rotate in an accelerating and then decelerating manner.

Referring to fig. 15, when the slider 14 moves to the third groove portion 1506, the angle between the direction a of the axial movement of the slider 14 along the screw 12 and the direction B of the movement of the slider 14 along the S-shaped guide groove is greater than or equal to zero and less than 10 °.

Referring to fig. 18, when the slider 14 moves to the fourth groove portion 1508, the angle between the direction a of the axial movement of the slider 14 along the screw 12 and the direction B of the movement of the slider 14 along the "S" guide groove is greater than or equal to zero and less than 10 °.

The included angle between the direction A and the direction B is equal to zero, and the sliding piece 14 is in a complete self-locking state; when the included angle between the direction a and the direction B is greater than zero and less than 10 °, the sliding member 14 is in a relatively self-locking state.

The principle of the sliding member 14 in the third slot portion 1506 or the fourth slot portion 1508 in the completely self-locking state or the relatively self-locking state of the present embodiment is the same as that of the sliding member 14 in the first slot portion 1502 or the second slot portion 1504 in the completely self-locking state or the relatively self-locking state of the present embodiment, and will not be described herein.

In some embodiments, when the slide 14 is positioned in the third slot 1506 or the fourth slot 1508, the angle between the direction a of axial movement of the slide 14 along the lead screw 12 and the direction B of movement of the slide 14 along the "S" shaped guide slot may be 1 °,4 °,7 °,9 °, or 10 °.

In some embodiments, when the slider 14 is positioned in the third slot portion 1506 or the fourth slot portion 1508, the slider 14 does not contact the end of the "S" shaped guide slot. If there is a misalignment in the installation of the door assembly 30, the distance between the slider 14 and the end of the "S" shaped channel facilitates the adjustment of the biased door assembly 30 into position.

In some embodiments, the slide 14 is in the door-closed position when the third slot portion 1506 is in a fully or relatively self-locking state and the slide 14 is in the door-open position when the fourth slot portion 1508 is in a fully or relatively self-locking state.

It is understood that in some embodiments, the guide groove is not limited to a "U" shaped guide groove or an "S" shaped guide groove, and may be any other shaped guide groove, as long as the sliding member 14 can be guided to move, so that the sliding member 14 drives the rotating arm assembly 15 to swing, so as to drive the door assembly 30 to rotate, and the rotation speed is accelerated and then decelerated.

Referring back to fig. 5, the rotating arm assembly 15 includes a rotating arm 150 and a drive shaft 152. The guide groove 1500 is disposed on the rotating arm 150, and one end of the rotating arm 150 is fixedly connected to the transmission shaft 152. The drive shaft 152 is fixedly coupled to the door assembly 30. Through setting up rotor arm 150 and transmission shaft 152 between door body subassembly 30 and slider 14, rotor arm 150 can regard as the extension structure of door body subassembly 30 in the horizontal direction, and transmission shaft 152 can regard as the extension structure of door body subassembly 30 in the vertical direction, makes things convenient for slider 14 to be connected with door body subassembly 30, and door body subassembly 30 original structure need not be as great change, can reduce the work load of redesigning door body subassembly 30.

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 drive shaft 282 may be disposed horizontally, such that the drive shaft 282 may be coupled to the door assembly 30 via a reversing mechanism.

In some embodiments, the slider 14 may have two, the two sliders 14 may be symmetrically disposed, the rotating arm 150 may have two, and the two rotating arms 150 may be symmetrically disposed. 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. 19, 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 drive shaft 152 is inserted into the door body assembly 30, the keyway 1520 is disposed between the drive shaft 152 and the door body assembly 30, and the connecting key 1522 can transmit torque between the drive shaft 152 and the door body assembly 30 to achieve that the drive shaft 152 remains circumferentially fixed with the door body assembly 30.

It will be appreciated that, according to practical needs, torque is not limited to be transmitted between the transmission shaft 152 and the door body assembly 30 through the connection key 1522, referring to fig. 20, in other embodiments, a protrusion 1524 is protruding from an end surface of the transmission shaft 152, a recess 304 with a shape matching the protrusion 1524 is provided on the door body assembly 30, and the protrusion 1524 is inserted into the recess 304 and is limited and fixed circumferentially, so that torque can be transmitted between the transmission shaft 152 and the door body assembly 30, so as to keep the transmission shaft 152 fixed with the door body assembly 30 circumferentially.

The protrusion 1524 may be specifically a cross protrusion, and the recess 304 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 shaft 152 may be flattened, screwed, directly welded, etc., and secured circumferentially to the door assembly 30.

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.

Referring to fig. 21-23, the mast assembly 20 may include a mast body 22, a base 24, a mount 26, a protective cover 28, and a mast rotating 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 speed-reducing door operator 10 is arranged on the mounting seat 26, the protective cover 28 accommodates the speed-reducing door operator 10, can isolate outside water vapor and dust, can play a role in protecting the speed-reducing door operator 10, and can isolate noise generated when the speed-reducing door operator 10 works to a certain extent.

It will be appreciated that in other embodiments, the speed reducing door operator 10 may be disposed on the base 24, and the speed reducing door operator 10 may be disposed on the base 24 without increasing the height of the pillar assembly 20, which is compact.

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 post body 22 may be provided with a routing channel that penetrates through both ends of the post body 22, the base 24 may be provided with a first routing port, and the mount 26 may be provided with a second routing port. One end of the wiring channel is communicated with the first wiring port, and the other end of the wiring channel is communicated with the second wiring port. The cable 40 buried underground or on the ground may be connected to the motor body 11 through the first wiring port, the wiring channel and the second wiring port in sequence, and provide electric power to the motor body 11.

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, the door body rotating portion is rotatably connected to the column assembly 30, and the transmission shaft 152 is connected to the door body rotating portion. 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 second door rotating part 37 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 to realize connection of the transmission shaft 152 and the second door rotating part 37.

It will be appreciated that in other embodiments, as described above, the drive shaft 152 may be provided with a protrusion 1524, the door assembly 30 may be provided with a recess 304, the protrusion 1524 inserted into the recess 304 may also enable the drive shaft 152 to remain circumferentially fixed with the door assembly 30, and the recess 304 may be provided on the second door rotating portion 37.

It will be appreciated that in other embodiments, the speed reducing door operator 10 may be provided on the base 24, as described above, with the drive shaft 152 coupled to the first door rotating portion 35.

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.

Compared with the prior art, the present embodiment provides an electric door 100, when the motor body 11 drives the screw 12 to rotate, the sliding sleeve 13 and the sliding member 14 move along the axial direction of the screw 12, and the sliding member 14 slides along the guiding slot 1500 during the axial movement, so as to drive the rotating arm assembly 15 and the door body assembly 30 to rotate. 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 13 is matched with the screw rod 12, the structure is simple, the fit is tight, the strength is high, the door body assembly 30 is not easy to damage when being subjected to strong impact of external force, and the impact resistance is strong.

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 described above, which are not provided in detail 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 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, the rotating arm assembly is provided with a guide groove, the sliding piece is in sliding fit with the guide groove, the guide groove is provided with a self-locking part, 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 and the sliding piece move along the axial direction of the screw rod, and during the axial movement of the screw rod, the sliding piece slides along the guide groove so as to drive the rotating arm assembly and the door body assembly to rotate, and when the door body assembly opens or closes in place, the sliding piece slides to the self-locking part so as to be self-locked.

2. The electric door according to claim 1, wherein the guide groove is a "U" -shaped guide groove, a first groove portion and a second groove portion are provided at two ends of the "U" -shaped guide groove, respectively, the first groove portion and the second groove portion are the self-locking portions, and when the sliding member moves to the first groove portion or the second groove portion, an included angle between a direction of axial movement of the sliding member along the screw rod and a direction of movement of the sliding member along the "U" -shaped guide groove is greater than or equal to zero and less than 10 ° so as to self-lock the sliding member.

3. The electric door according to claim 1, wherein the guide groove is an S-shaped guide groove, the S-shaped guide groove is provided with a third groove portion and a fourth groove portion, the third groove portion and the fourth groove portion are the self-locking portions, and when the sliding member moves to the third groove portion or the fourth groove portion, an included angle between a direction in which the sliding member moves along the axial direction of the lead screw and a direction in which the sliding member moves along the S-shaped guide groove is greater than or equal to zero and less than 10 ° so that the sliding member is self-locked.

4. The power door of claim 1, wherein the slider is rotatably coupled to the sliding sleeve, the slider being a circular block.

5. The power door of claim 1, 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 door body assembly includes a door body and a door body rotating portion;

The door body rotating part is connected with the door body and is rotationally connected with the upright post assembly, and the transmission shaft is connected with the door body rotating part.

7. The electric door as claimed in claim 6, wherein the door body rotating part 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 door body rotating part 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, and a second post rotation portion; the door body rotating part comprises 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 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 speed-reducing door opener is arranged on the base, and the transmission shaft is connected with the first door body rotating part; or the speed-reducing door opener is arranged on the mounting seat, and the transmission shaft is connected with the second door body rotating part.

9. The electric door according to claim 6, 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 door body rotating part; or alternatively

The axis of motor body output shaft is vertical to be set up, the axis of lead screw with the axis of motor body output shaft coincides mutually, the axis level of transmission shaft sets up, the transmission shaft with be connected through reversing mechanism between the door body rotation portion.

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.