CN220285632U

CN220285632U - Auxiliary limiting device for roller shutter door

Info

Publication number: CN220285632U
Application number: CN202322197159.4U
Authority: CN
Inventors: 马少康; 陈光平; 阎首兴; 王金山
Original assignee: China Nuclear Industry 24 Construction Co Ltd
Current assignee: China Nuclear Industry 24 Construction Co Ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-01-02
Anticipated expiration: 2033-08-15

Abstract

The utility model discloses an auxiliary limiting device for a roller shutter door, relates to the technical field of roller shutter doors, and solves the technical problem that a curtain surface of the roller shutter door in the prior art is excessively rolled up when the limiting device fails. The auxiliary limiting device of the roller shutter door comprises a limiter, wherein the limiter comprises an elastic piece and a micro switch, and the free end of the elastic piece is positioned below the micro switch; a housing, in which a receiving groove is formed, and a through hole is formed at one side of the housing; the fixed column is arranged in the storage groove; the spring is arranged on the fixed column; one end of the rope is connected to the spring, and the other end of the rope extends out of the shell through the through hole and is connected with the free end of the elastic piece; the two limiting sleeves are arranged on the rope and are respectively positioned inside and outside the shell; when the limit sleeve is abutted with the shell, the free end of the elastic piece touches the micro switch. Through the arrangement of the rope and the limiting sleeve, the auxiliary limiting device for the roller shutter door provided by the utility model can prevent the curtain surface from being excessively rolled up when the limiter fails, and has stronger practicability.

Description

Auxiliary limiting device for roller shutter door

Technical Field

The utility model relates to the technical field of roller shutter doors, in particular to an auxiliary limiting device for a roller shutter door.

Background

The rolling door is composed of multiple articulated door sheets connected in series, and the upper and lower doors are rotated in a fixed slideway by taking a reel above the door as the center. Roller doors are commonly used in stores. The rolling door has the same function as the wall and is horizontally separated, and consists of a plurality of parts including a curtain plate, a seat plate, a guide rail, a support, a scroll, a box body, a control box, a rolling door machine, a limiter, a door lintel, a manual quick release switching device, a button switch, a safety device and the like, and is generally arranged at a part inconvenient to separate by the wall.

The rolling shutter door used in the current place basically only depends on the self-contained limiting device to control the rising and falling heights of the curtain surface, but due to the influence of factors such as motor vibration, the position of a positioning nut on the self-contained limiting device of the rolling shutter door is deviated, so that the limiting function is lost, the curtain surface is excessively rolled up, various rolling shutter door faults are caused, part of the rolling shutter door can adopt a laser positioning system to carry out auxiliary limiting of the rolling shutter door, but the power supply line of the laser positioning system is found to roll into a rolling shutter guide rail in the field operation, so that a cable is broken under the extrusion condition, and the auxiliary limiting function is lost.

Disclosure of Invention

The utility model provides an auxiliary limiting device for a roller shutter door, which is used for solving the technical problem that a curtain surface of the roller shutter door is excessively rolled up when the limiting device fails in the prior art.

The utility model is realized by the following technical scheme:

the utility model provides a roller shutter door auxiliary limiting device, includes the stopper, the stopper includes elastic component and micro-gap switch, the free end of elastic component is located micro-gap switch's below includes:

the shell is internally provided with a storage groove, and one side of the shell is provided with a through hole;

the fixing column is arranged in the containing groove;

one end of the spring is arranged on the fixed column;

one end of the rope is connected with the other end of the spring, and the other end of the rope extends out of the shell through the through hole and is connected with the free end of the elastic piece;

the number of the limiting sleeves is two, the two limiting sleeves are fixedly arranged on the rope, one limiting sleeve is positioned in the shell, and the other limiting sleeve is positioned outside the shell;

when the limit sleeve is abutted with the shell, the free end of the elastic piece touches the micro switch.

Further, the method further comprises the following steps:

the first fixed pulley is fixedly arranged on one side of the limiter, and the rope is slidably arranged in the groove of the fixed pulley;

the second fixed pulley is arranged right below the first fixed pulley, and the rope is arranged in a groove of the second fixed pulley in a sliding mode.

Further, the top plate of the shell is made of transparent materials.

Further, the top plate of the shell is an acrylic plate.

Further, the rope is a steel strand.

Further, the limiting sleeve is an aluminum sleeve.

Further, the stopper further includes:

the micro switch is arranged in the shell;

the screw is rotatably arranged in the shell;

the number of the screw sleeves is two, and the two screw sleeves are respectively screwed at two ends of the screw rod;

the plate body is arranged in the shell, a tooth part is arranged on the outer side of the screw sleeve, and the tooth part is clamped on one side of the plate body;

the number of the micro switches is two, and the two micro switches are located above the screw rod and are arranged in one-to-one correspondence with the two screw sleeves.

Further, the elastic member includes:

one end of the connecting piece is arranged below the micro switch, and an included angle alpha is formed between the top wall of the connecting piece and the bottom wall of the micro switch;

the arc piece, the one end fixed mounting of arc piece is in the other end of connection piece, the rope is connected the other end of arc piece.

Further, the included angle α is in the range of: alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.

Further, the first fixed pulley is higher than the micro switch in the vertical plane.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

the utility model provides an auxiliary limiting device for a roller shutter door, which comprises a limiter, a shell, a fixed column, a spring, ropes and limiting sleeves, wherein the limiter comprises an elastic piece and a micro switch, the free end of the elastic piece is positioned below the micro switch, a storage groove is formed in the shell, one side of the shell is provided with a through hole, the fixed column is arranged in the storage groove, one end of the spring is arranged on the fixed column, one end of each rope is connected with the other end of the spring, the other end of each rope extends out of the shell through the through hole and is connected with the free end of the elastic piece, the number of the limiting strips is two, the two limiting sleeves are fixedly arranged on the ropes, one limiting sleeve is positioned in the shell, the other limiting sleeve is positioned outside the shell, and when the limiting sleeve is in butt joint with the shell, the free end of the elastic piece touches the micro switch.

Through the structure, when the limiter of the rolling door fails and the rolling door body needs to be opened, the rope is pulled out of the shell, the spring is tensioned, and after the rolling door is lifted to a certain height, the limiting sleeve arranged in the shell is pulled to be abutted with the inner bottom wall of the shell, the rope cannot be pulled out any more, so that the other end of the rope pulls the elastic piece until the elastic piece touches the micro switch, the curtain surface stops rotating, and the curtain surface stops lifting, so that the excessive rolling of the curtain surface is avoided; when the rolling door body needs to be closed, the force of the tensioning spring disappears, the spring is restored, the rope is stored in the shell, when the limiting sleeve outside the shell is abutted with the outer bottom wall of the shell, the rope cannot be pulled into the shell any more, the stored length of the rope is limited, the rising height of the curtain surface is limited, and therefore the auxiliary limiting device for the rolling door, provided by the utility model, can prevent the curtain surface from being excessively rolled up when the limiter fails due to the arrangement of the rope and the limiting sleeve, and has stronger practicability.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model. In the drawings:

fig. 1 is a schematic structural view of an auxiliary limiting device for a roller shutter door according to an embodiment of the present utility model;

FIG. 2 is a schematic structural diagram of an auxiliary assembly according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a limiter according to an embodiment of the present utility model.

In the drawings, the reference numerals and corresponding part names:

1-a shell, 11-a storage groove, 2-a fixed column, 3-a spring, 4-a rope, 5-a limit sleeve, 6-a first pulley, 7-a second pulley and 8-a limiter, 81-elastic piece, 811-connection piece, 812-arc piece, 82-micro switch, 83-casing, 84-screw rod, 85-swivel nut, 86-plate body.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, 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 thus are not to be construed as limiting the 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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Examples

The embodiment provides an auxiliary limiting device for a roller shutter door, which is used for solving the technical problem that a curtain surface of the roller shutter door is excessively rolled up when the limiting device fails. The auxiliary limiting device for the roller shutter door comprises a limiter 8, a shell 1, a fixed column 2, a spring 3, a rope 4 and a limiting sleeve 5, wherein:

the limiter 8 comprises an elastic piece 81 and a micro switch 82, the free end of the elastic piece 81 is located below the micro switch 82, the rolling shutter door body comprises a curtain face, a motor and a rain cover box body, the curtain face is slidably mounted in a wall body, the motor and the limiter 8 are all mounted in the rain cover box body, the motor is used for driving the curtain face to rise and fall, the limiter 8 is electrically connected with the motor through a circuit, and the limiter 8 is used for controlling the on-off electricity of the motor.

The shell 1 is a square hollow box body, the shell 1 is fixedly arranged at the lower part of the curtain surface, a containing groove 11 is arranged in the shell 1, and a through hole is formed in one side of the shell 1.

The fixing post 2 is installed in the receiving groove 11, specifically, the fixing post 2 is located at the center of the receiving groove 11.

One end of the spring 3 is arranged on the fixed column 2, and the spring 3 is more convenient to install through the arrangement of the fixed column 2.

One end of the rope 4 is connected with the other end of the spring 3, the other end of the rope 4 extends out of the shell 1 through a through hole and is connected with the free end of the elastic piece 81, and the spring 3 is compressed and tensioned when the rope 4 is pulled out of the shell 1 through the arrangement of the spring 3 and the rope 4; when the rope 4 is released, the force applied by the spring 3 disappears, and the spring 3 is released to rotate, so that the rope 4 is wound into the shell 1.

The number of the limiting sleeves 5 is two, the two limiting sleeves 5 are fixedly arranged on the rope 4, one limiting sleeve 5 is positioned in the shell 1, the other limiting sleeve 5 is positioned outside the shell 1, and the curtain surface lifting distance is limited by the distance between the two limiting sleeves 5 through the arrangement of the two limiting sleeves 5.

When the limit sleeve 5 is abutted with the shell 1, the free end of the elastic piece 81 triggers the micro switch 82.

Through the structure, when the limiter 8 of the rolling shutter door fails and the rolling shutter door body needs to be opened, the rope 4 is pulled out of the shell 1, the spring 3 is tensioned, after the rolling shutter door is lifted to a certain height, the limiting sleeve 5 arranged in the shell 1 is pulled to be abutted with the inner bottom wall of the shell 1, and then the rope 4 cannot be pulled out any more, so that the other end of the rope 4 pulls the elastic piece 81 until the elastic piece 81 touches the micro switch 82, the curtain surface stops rotating, the curtain surface stops lifting, and excessive rolling of the curtain surface is avoided; when the rolling shutter door body needs to be closed, the force of the tensioning spring 3 disappears, the spring 3 is restored, the rope 4 is stored in the shell 1, when the limit sleeve 5 outside the shell 1 is abutted against the outer bottom wall of the shell 1, the rope 4 cannot be pulled into the shell 1 any more, the stored length of the rope 4 is limited, and the rising height of the curtain surface is limited, so that the auxiliary limit device for the rolling shutter door provided by the utility model can prevent the curtain surface from being excessively rolled up when the limit device 8 fails through the arrangement of the rope 4 and the limit sleeve 5, and has stronger practicability.

An alternative implementation of this embodiment is as follows: also comprises a first fixed pulley 6 and a second fixed pulley 7, wherein:

the first fixed pulley 6 is also arranged in the rain-proof cover box body and is positioned at one side of the limiter 8, the rope 4 is slidably arranged in the groove of the first fixed pulley 6, and the rope 4 is more convenient to pull through the arrangement of the first fixed pulley 6.

The second fixed pulley 7 is installed on the ground and is located under the first fixed pulley 6, the rope 4 is slidably installed in the groove of the second fixed pulley 7, the sliding direction of the rope 4 is changed through the arrangement of the second fixed pulley 7, the requirement of a plurality of spaces of the auxiliary limiting device of the roller shutter door provided by the embodiment is reduced, the rope 4 can be pulled more conveniently through the cooperation of the first fixed pulley 6 and the second fixed pulley 7, and meanwhile the rope 4 is tensioned, so that the rope 4 is prevented from being knotted in the pulling process.

An alternative implementation of this embodiment is as follows: the top plate of the housing 1 is made of a transparent material, so that it is convenient to observe whether the rope 4 in the housing 1 is caught.

Optionally, the top plate of the shell 1 is an acrylic plate, the acrylic plate has good plasticity, convenient processing, good transparency, long service life, adaptability to natural environment, no change in performance under long-term sunlight, and the impact resistance of the acrylic plate is sixteen times that of common glass.

An alternative implementation of this embodiment is as follows: the rope 4 is a steel stranded rope, and the steel stranded rope can transmit long-distance load, has large bearing safety coefficient, is safer and more reliable, has light dead weight and good softness, and is suitable for various uses such as traction, pulling, bundling and the like.

An alternative implementation of this embodiment is as follows: the limit sleeve 5 is an aluminum sleeve, and the aluminum sleeve has light weight, difficult rust and moderate price.

An alternative implementation of this embodiment is as follows: the limiter 8 further comprises a housing 83, a screw 84, a sleeve 85 and a plate 86, wherein:

the housing 83 is installed in the rain-proof cover box, the micro switch 82 is installed in the housing 83, and the probability of damage to parts in the housing 83 is reduced through the arrangement of the housing 83.

The screw 84 is rotatably mounted within the housing 83.

The number of the threaded sleeves 85 is two, and the two threaded sleeves 85 are respectively in threaded connection with two ends of the screw 84.

The plate 86 is installed in the casing 83, the shell 1 of the screw sleeve 85 is provided with teeth, the teeth are clamped on one side of the plate 86, and thus, through the cooperation of the plate 86, the screw 84 and the screw sleeve 85, the screw 84 rotates, the screw sleeve 85 is clamped on one side of the plate 86, the screw sleeve 85 is prevented from rotating along with the rotation of the screw 84, and the screw sleeve 85 moves on the screw 84 along the axial direction of the screw 84.

The number of the micro-switches 82 is two, the two micro-switches 82 are located above the screw rod 84 and correspond to the two screw sleeves 85 one by one, so that when one screw sleeve 85 is close to one micro-switch 82, the other screw sleeve 85 is gradually far away from the other micro-switch 82, and then one screw sleeve 85 can be controlled to abut against the elastic piece 81 below the corresponding micro-switch 82, so that the elastic piece 81 triggers the micro-switch 82, the motor is stopped to rotate forwards and reversely, and the rising and falling height of the curtain surface is controlled.

An alternative implementation of this embodiment is as follows: the elastic member 81 includes a connecting piece 811 and an arc piece 812, wherein:

one end of the connecting piece 811 is mounted below the micro-switch 82, and an included angle α is formed between the top wall of the connecting piece 811 and the bottom wall of the micro-switch, so that a distance is formed between the other end of the elastic member 81 and the micro-switch 82 through the arrangement of the included angle α.

One end of the arc piece 812 is fixedly arranged at the other end of the connecting piece 811, and the rope 4 is connected at the other end of the arc piece 812, so that the elastic piece 81 is more convenient to touch the micro switch 82 and the rope 4 is more convenient to connect to the elastic piece 81 and is not easy to fall off through the arrangement of the arc piece 812.

Optionally, the range of the included angle α is: the angle alpha is more than or equal to 30 degrees and less than or equal to 60 degrees, so that the free end of the elastic piece 81 and the micro switch 82 cannot be arranged at intervals due to the small included angle, and the limiter 8 fails; and the included angle is too large, so that the free end of the elastic piece 81 is not conveniently pressed by the threaded sleeve 85 to touch the micro switch 82.

An alternative implementation of this embodiment is as follows: the first fixed pulley 6 is higher than the micro switch 82 in the vertical plane, so that when the curtain rises, the limiter 8 fails, the rope 4 is pulled out of the shell 1, when the aluminum sleeve in the shell 1 is abutted with the inner bottom wall of the shell 1, the other end of the rising curtain pulls the other end of the rope 4, the other end of the rope 4 drives the arc piece 812 to touch the micro switch 82, the first fixed pulley 6 is higher than the micro switch 82, the rope 4 is more convenient to drive the arc piece 812 to move upwards to touch the micro switch 82, the motor is stopped, and the curtain stops rising.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a roller shutter door auxiliary limiting device, includes stopper (8), stopper (8) are including elastic component (81) and micro-gap switch (82), the free end of elastic component (81) is located micro-gap switch (82) below, its characterized in that includes:

the shell (1), a containing groove (11) is arranged in the shell (1), and a through hole is formed in one side of the shell (1);

the fixing column (2) is arranged in the containing groove (11);

a spring (3), wherein one end of the spring (3) is arranged on the fixed column (2);

one end of the rope (4) is connected with the other end of the spring (3), and the other end of the rope (4) extends out of the shell (1) through the through hole and is connected with the free end of the elastic piece (81);

the two limiting sleeves (5) are fixedly arranged on the rope (4), one limiting sleeve (5) is positioned in the shell (1), and the other limiting sleeve (5) is positioned outside the shell (1);

when the limit sleeve (5) is abutted with the shell (1), the free end of the elastic piece (81) touches the micro switch (82).

2. The auxiliary stopper of a roll-up door of claim 1, further comprising:

the first fixed pulley (6), the fixed pulley (6) is fixedly arranged on one side of the limiter (8), and the rope (4) is slidably arranged in a groove of the fixed pulley (6);

and the second fixed pulley (7), the second fixed pulley (7) is arranged right below the first fixed pulley (6), and the rope (4) is slidably arranged in a groove of the second fixed pulley (7).

3. A roller shutter door auxiliary stop device according to claim 1, characterized in that the top plate of the housing (1) is made of transparent material.

4. A roller shutter door auxiliary limiting device according to claim 3, characterized in that the top plate of the housing (1) is an acrylic plate.

5. A roller shutter door auxiliary stop device according to claim 1, characterized in that the rope (4) is a steel strand.

6. An auxiliary stop device for a roller shutter door according to claim 1, characterized in that the stop collar (5) is an aluminium collar.

7. A roller shutter door auxiliary stop device according to claim 2, characterized in that the stop (8) further comprises:

a housing (83), the micro switch (82) being mounted within the housing (83);

a screw (84), the screw (84) being rotatably mounted within the housing (83);

the number of the threaded sleeves (85) is two, and the two threaded sleeves (85) are respectively in threaded connection with two ends of the screw rod (84);

the plate body (86), the plate body (86) is installed in the shell (83), a tooth part is arranged on the outer side of the screw sleeve (85), and the tooth part is clamped on one side of the plate body (86);

the number of the micro switches (82) is two, and the two micro switches (82) are located above the screw rods (84) and are arranged in one-to-one correspondence with the two screw sleeves (85).

8. A roller shutter door auxiliary stopper according to claim 7, wherein said elastic member (81) comprises:

one end of the connecting piece (811) is arranged below the micro switch (82), and an included angle alpha is formed between the top wall of the connecting piece (811) and the bottom wall of the micro switch (82);

the arc piece (812), the one end fixed mounting of arc piece (812) is in the other end of connection piece (811), rope (4) are connected in the other end of arc piece (812).

9. The auxiliary limiting device for a roller shutter door according to claim 8, wherein the included angle α is in the range of: alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.

10. A roller shutter door auxiliary stop as claimed in claim 7, characterized in that the first fixed sheave (6) is higher in height in the vertical plane than the microswitch (82).