CN216471687U - Anti-pinch device of elevator door - Google Patents
Anti-pinch device of elevator door Download PDFInfo
- Publication number
- CN216471687U CN216471687U CN202122726619.9U CN202122726619U CN216471687U CN 216471687 U CN216471687 U CN 216471687U CN 202122726619 U CN202122726619 U CN 202122726619U CN 216471687 U CN216471687 U CN 216471687U
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- elevator door
- microswitch
- contact plate
- pinch device
- door
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Abstract
The utility model discloses an elevator door anti-pinch device, which comprises an edge external member, a touch plate member, a swing rod and a microswitch, wherein the edge external member is fixedly connected with a frame; the microswitch is electrically connected with an external control device for controlling the opening and closing of the elevator door, the touch plate piece is pressed, the touch plate piece moves towards the direction far away from the center of the door by virtue of the suspended support of the oscillating bar and pushes the microswitch in a butting way, the microswitch is closed by pressing, and the control device controls the elevator door to stop opening the door by closing the microswitch; when a hand is opened along with the elevator door and presses the touch plate piece to close the microswitch, the control device controls the elevator door to stop opening the door, the accident that the elevator door clamps the hand in the opening process is avoided, and the safety of elevator users is ensured.
Description
Technical Field
The utility model relates to an elevator safety protection device, in particular to an elevator door hand clamping prevention device for preventing an elevator door from clamping hands.
Background
When the elevator is provided with a smooth and beautiful door, particularly a glass door, when the elevator door is opened, when a user presses the elevator door with his hand, particularly when a child is in a fancy state, the child presses the elevator door with the glass structure with his hand, and in the process of opening the elevator door, the hand pressed on the elevator door is dragged by the elevator door to move to the frame along with the elevator door, and the hand can be clamped between the elevator door and the door frame, so that the hand is damaged by clamping.
Therefore, there is a need for an elevator door anti-pinch device that can effectively prevent the hand from entering the frame along with the elevator door and being pinched.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an elevator door anti-pinch device which can effectively prevent the accident that hands are clamped when an elevator door enters a frame.
In order to achieve the purpose, the utility model provides an anti-pinch device of an elevator door, which is independently and respectively arranged at the frame parts on the left side and the right side of the elevator door and comprises a side sleeve part, a contact plate part, a swing rod and a microswitch, wherein the side sleeve part is fixedly connected with the frame, the upper end of the swing rod is rotatably connected with the contact plate part, the lower end of the swing rod is rotatably connected with the side sleeve part, the contact plate part is supported by the swing rod and suspended at one side of the side sleeve part to be close to the elevator door, the swing rod is obliquely arranged, and a abdicating space for the movement of the contact plate part is formed from the upper part of the contact plate part to the side sleeve part; the microswitch is electrically connected with an external control device for controlling the opening and closing of the elevator door, is convexly and fixedly connected to the side sleeve piece and is opposite to the contact plate piece; the contact plate piece is pressed, the contact plate piece moves towards the direction far away from the center of the door by means of the suspension support of the swing rod and pushes the microswitch in a butting manner, the microswitch is pressed to be closed, and the control device controls the elevator door to stop opening the door by closing the microswitch.
Preferably, the movement locus of the touch plate member of the anti-pinch device for the elevator door is an arc, the center of the arc is the rotation center of the lower end of the swing rod and the side sleeve member, and the radius of the arc is the distance from the rotation center of the lower end of the swing rod and the side sleeve member to the rotation center of the upper end of the swing rod and the rotation center of the touch plate member.
Preferably, the upper end of the swing rod of the anti-pinch device for the elevator door is rotatably connected with the contact plate member by a bearing, and the lower end of the swing rod is rotatably connected with the side sleeve member by another bearing.
Preferably, the contact plate of the anti-pinch device for the elevator door is convexly provided with a first installation part, and the upper end of the swing rod is rotatably connected with the first installation part.
Preferably, the side sleeve part of the elevator door anti-pinch device is convexly provided with a second installation part, and the lower end of the swing rod is rotatably connected with the second installation part.
Preferably, the microswitch of the elevator door anti-pinch device disclosed by the utility model protrudes out of the switch key opposite to the touch plate, and the touch plate presses the switch key to close the microswitch.
Preferably, the contact plate of the anti-pinch device for the elevator door is provided with a pressing sheet opposite to the switch key.
Preferably, the frame at the same side of the anti-pinch device for the elevator door is at least provided with two anti-pinch devices for the elevator door, and the control device can control the elevator door to stop opening the door when any one microswitch is closed.
Preferably, the anti-pinch device of the elevator door is uniformly arranged on the frame on the same side.
Compared with the prior art, when the elevator door is opened, when a user presses the elevator door, particularly when a child is in a curious state, the child presses the elevator door with a glass structure, the hand pressing the elevator door moves to the frame along with the elevator door in the opening process of the elevator door, when the hand approaches the frame, the hand firstly contacts and gradually presses the touch plate part, after the touch plate part is pressed, the touch plate part is gradually approached to the side sleeve part by the suspended support of the obliquely arranged swing rod, namely, the included angle between the swing rod and the touch plate part is gradually reduced, the touch plate part performs arc motion relative to the fixed side sleeve part under the support action of the swing rod, the space provides a motion space for the arc motion of the touch plate part, and the touch plate part moves to press the microswitch fixed side sleeve part along with the continuous pressing of the touch plate part, the microswitch is closed by being pressed, the control device is controlled by the microswitch to stop opening the elevator door, and the hand pressed on the elevator door stops moving when the elevator door stops opening the door, so that the accident that the hand is clamped when the elevator door enters the frame along with the elevator door is effectively avoided, the accident that the elevator door clamps the hand in the opening process is avoided, the safety of elevator users is ensured, and especially the accident that children clamp the hand when using the elevator door with a glass structure is avoided; therefore, the elevator door can effectively prevent the accident of clamping hands in the opening process of the elevator door, has stronger practicability, and is suitable for being widely popularized and used in the existing elevator and the newly-installed elevator.
Drawings
Fig. 1 is a structural view of an elevator door anti-pinch device installed at the left and right side frames of an elevator door according to the present invention.
Fig. 2 is a front view of the anti-pinch device of the elevator door of the present invention.
Fig. 3 is a side view of the anti-pinch device of the elevator door of the present invention.
Fig. 4 is a rear view of the anti-pinch device of the elevator door of the present invention.
Fig. 5 is an exploded view of the anti-pinch device of the elevator door of the present invention.
Detailed Description
Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements.
As shown in fig. 1-5, the anti-pinch device 100 for elevator door of the present invention is independently and respectively installed at the left and right side frames of the elevator door, i.e. the left side frame is installed with the anti-pinch device 100 for elevator door of the present invention, and the right side frame is also installed with the anti-pinch device 100 for elevator door of the present invention, the anti-pinch device 100 for elevator door of the present invention comprises a side member 1, a contact plate member 2, a swing link 3 and a micro switch 4, the side member 1 is fixedly connected with the side frame 101, the upper end of the swing link 3 is rotatably connected with the contact plate member 2, the lower end of the swing link 3 is rotatably connected with the side member 1, so that the contact plate member 2 is supported by the swing link 3 and suspended at one side of the side member 1 close to the elevator door, the swing link 3 is obliquely arranged, because the upper and lower ends of the swing link 3 are rotatably connected, and the contact plate member 2 is supported by the swing link 3 in a suspension manner, when the swing link 3 is subjected to an acting force different from the length, the swing rod 3 drives the contact plate 2 to do arc motion (namely swing motion), the track of the arc motion is shown by a dotted arrow B shown in fig. 2, the rotation of the swing rod 3 changes (increases or decreases) the direct included angle alpha (shown in fig. 2) between the swing rod 3 and the fixed edge sleeve 1, and a yielding space for the contact plate 2 to move is formed from the upper part of the contact plate 2 to the edge sleeve 1; the microswitch 4 is electrically connected with an external control device for controlling the opening and closing of the elevator door, and the microswitch 4 is convexly and fixedly connected to the side sleeve part 1 and is opposite to the contact plate part 2; when the touch plate 2 is pressed, the touch plate 2 moves away from the center A of the door by means of the suspended support of the swing rod 3 and gradually approaches and butts against the pressing microswitch 4, the microswitch 4 is pressed to be closed, and the closing microswitch 4 enables the control device to control the elevator door to stop opening. Specifically, when the elevator door is opened, when a user presses the elevator door (not shown), especially when a child is in a curious state, the child presses the elevator door with his/her hand on the glass elevator door, the hand pressing on the elevator door is dragged by the elevator door to move to the frame along with the elevator door during the opening of the elevator door, when the hand approaches the frame, the hand first contacts and gradually presses the touch plate 2, and after the touch plate 2 is pressed, the touch plate 2 will gradually approach the edge sleeve 1 by the suspended support of the obliquely arranged swing rod 3, i.e. the included angle α between the swing rod 3 and the touch plate 2 will gradually decrease, the touch plate 2 will make an arc motion (the arc motion trajectory is shown as a dotted arrow B in fig. 2) relative to the fixed edge sleeve 1 under the support of the swing rod 3, the abdicating space provides a motion space for the arc motion of the touch plate 2, along with the continuous pressing of the contact plate member 2, the contact plate member 2 moves to be collided and pressed on the microswitch 4 fixed on the side sleeve member 1, the microswitch 4 is pressed to be closed, the control device for controlling the elevator door to stop opening the door by closing the microswitch 4 controls the elevator door to stop opening the door, and the stop opening of the elevator door enables the hand pressed on the elevator door to stop moving, so that the accident that the hand is clamped when the elevator door enters the frame 101 along with the elevator door is effectively avoided, and the accident that the elevator door clamps the hand in the opening process is avoided. The following description of the present invention will be made in further detail with reference to fig. 1 to 5:
as shown in fig. 2, in order to improve the smoothness of the rotation of the swing link 3 of the present invention, preferably, the movement track B of the touch plate 2 of the elevator door anti-pinch device of the present invention is an arc, the center of the arc is the center C of the rotation of the swing link 3 and the rotation center C of the side sleeve, and the radius of the arc is the distance E from the lower end of the swing link to the rotation center C of the side sleeve 1 to the upper end of the swing link to the rotation center D of the touch plate 2. In order to further improve the smoothness of the rotation of the swing link 3, the upper end of the swing link 3 is rotatably connected with the touch panel member 2 by a bearing 31, the lower end of the swing link 3 is rotatably connected with the side sleeve member 1 by another bearing 32, the swing link 3 can rotate more smoothly by the bearings 31 and 32, and the sensitivity of the microswitch 4 started by the touch panel member 2 is improved.
As shown in fig. 1, 2, 4 and 5, in order to improve the convenience of installation and maintenance, a first installation part 21 is convexly provided on a contact plate part 2 of the elevator door anti-pinch device 100 of the present invention, and the upper end of a swing link 3 is rotatably connected with the first installation part 21; in particular, a bearing 31 is provided on the first mounting part 21, and the upper end of the rocker 3 is connected in rotation relative to the touch plate part 2 by the bearing 31 provided on the first mounting part 21. The side external member 1 of the anti-pinch device of the elevator door is convexly provided with a second installation member 11, and the lower end of the swing rod 3 is rotatably connected with the second installation member 11; in particular, the bearing 32 is arranged on the second mounting part 11, and the lower end of the swing link 3 is rotatably connected with respect to the edge set 1 through the bearing 32 arranged on the second mounting part 11.
As shown in fig. 1, 2, 4 and 5, the microswitch 4 of the anti-pinch device for elevator doors of the present invention protrudes out of the switch button 41 facing the touch plate, and the touch plate presses the switch button to close the microswitch; the microswitch 4 of the present invention has an inlet 42, and the inlet 42 is electrically connected to the control device through an electric wire. Specifically, the side member 1 protrudes from the third mounting member 12, the micro switch 4 is mounted on the third mounting member 12, and the micro switch 4 protrudes from the third mounting member 12 and faces the switch key 41 of the touch panel. Specifically, the touch panel 2 of the anti-pinch device for elevator doors of the present invention is provided with a pressing piece 22 opposite to the switch key 41; by means of the matching of the switch key 41 and the pressing sheet 22, the service life of the microswitch 4 is ensured, and the touch sensitivity of the microswitch 4 is ensured.
Preferably, at least two of the elevator door anti-pinch devices 100 are disposed on the same side of the frame of the elevator door anti-pinch device 100, and the control device can control the elevator door to stop opening the door when any one of the microswitches 4 is closed. Specifically, the anti-pinch device of the elevator door is uniformly arranged on the frame on the same side.
Referring to fig. 1-5, when the elevator door of the present invention is opened, when a user presses the elevator door, especially a child presses the elevator door with a glass structure, the hand pressed on the elevator door moves to the frame along with the elevator door when the elevator door is opened, when the hand approaches the frame, the hand first contacts and gradually presses the touch plate 2, after the touch plate 2 is pressed, the touch plate 2 moves away from the center of the door after being pressed due to the suspension support of the inclined swing rod 3, so that the included angle α between the swing rod 3 and the touch plate 1 is gradually reduced, the touch plate 2 moves in an arc relative to the fixed edge sleeve 1 under the support of the swing rod 3 and the rotational connection of the bearings 31 and 32, the abdicating space provides a motion space for the motion of the touch plate member 2, the touch plate member 2 is enabled to move to be abutted against and pressed on the switch key 41 of the microswitch 4 fixed on the side sleeve member 1 along with the continuous pressing of the touch plate member 2, the microswitch 4 is pressed to be closed, the control device controlled by the closing of the microswitch 4 controls the elevator door to stop opening the door, the stop opening of the elevator door enables the hand pressed on the elevator door to stop moving, thereby effectively avoiding the accident that the hand is clamped along with the entering of the elevator door into the frame, avoiding the accident that the elevator door clamps the hand in the opening process, ensuring the safety of elevator users, and particularly avoiding the accident that children clamp the hand when using the elevator door with a glass structure; therefore, the elevator door can effectively prevent the accident of clamping hands in the opening process of the elevator door, has stronger practicability, and is suitable for being widely popularized and used in the existing elevator and the newly-installed elevator.
The operation principles of the elevator door, the microswitch and the control device according to the present invention are well known to those skilled in the art, and will not be described in detail herein.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (9)
1. The anti-pinch device for the elevator door is independently and respectively arranged at the frame parts on the left side and the right side of the elevator door, and is characterized by comprising a side sleeve part, a contact plate part, a swing rod and a microswitch, wherein the side sleeve part is fixedly connected with the frame, the upper end of the swing rod is rotatably connected with the contact plate part, the lower end of the swing rod is rotatably connected with the side sleeve part, the contact plate part is supported by the swing rod and suspended at one side of the side sleeve part to be close to the elevator door, the swing rod is obliquely arranged, and a abdicating space for the contact plate part to move is formed above the contact plate part to the side sleeve part; the microswitch is electrically connected with an external control device for controlling the opening and closing of the elevator door, is convexly and fixedly connected to the side sleeve piece and is opposite to the contact plate piece; the contact plate piece is pressed, the contact plate piece moves towards the direction far away from the center of the door by means of the suspension support of the swing rod and pushes the microswitch in a butting manner, the microswitch is pressed to be closed, and the control device controls the elevator door to stop opening the door by closing the microswitch.
2. The elevator door anti-pinch device according to claim 1, wherein the movement locus of the contact plate member is an arc, the center of the arc is the center of rotation of the lower end of the rocker and the edge set member, and the radius of the arc is the distance from the center of rotation of the lower end of the rocker and the edge set member to the center of rotation of the upper end of the rocker and the contact plate member.
3. The elevator door anti-pinch device of claim 1, wherein the upper end of the rocker is pivotally connected to the contact plate member by a bearing, and the lower end of the rocker is pivotally connected to the side sleeve member by another bearing.
4. The elevator door anti-pinch device of claim 1, wherein a first mounting member is provided to protrude from the contact plate member, and an upper end of the swing link is rotatably coupled to the first mounting member.
5. The elevator door anti-pinch device of claim 4, wherein a second mounting member is provided to protrude from the side member, and a lower end of the rocker is pivotally connected to the second mounting member.
6. The anti-pinch device for elevator doors of claim 1, wherein the microswitch protrudes from the switch plate and faces the touch plate, and the touch plate presses the switch to close the microswitch.
7. The elevator door anti-pinch device of claim 6, wherein a pressing piece is installed on the contact plate member to face the switch key.
8. The elevator door anti-pinch device of claim 1, wherein at least two of the swing bars are disposed on the frame on the same side.
9. The elevator door anti-pinch device of claim 8, wherein the micro switch is located between any two of the rocker levers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122726619.9U CN216471687U (en) | 2021-11-08 | 2021-11-08 | Anti-pinch device of elevator door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122726619.9U CN216471687U (en) | 2021-11-08 | 2021-11-08 | Anti-pinch device of elevator door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216471687U true CN216471687U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122726619.9U Active CN216471687U (en) | 2021-11-08 | 2021-11-08 | Anti-pinch device of elevator door |
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| Country | Link |
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| CN (1) | CN216471687U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979273A (en) * | 2021-11-08 | 2022-01-28 | 快意电梯股份有限公司 | Anti-pinch device of elevator door |
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2021
- 2021-11-08 CN CN202122726619.9U patent/CN216471687U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979273A (en) * | 2021-11-08 | 2022-01-28 | 快意电梯股份有限公司 | Anti-pinch device of elevator door |
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