Anti-pinch safety car door device of elevator door

Abstract

An anti-pinch safety car door device of an elevator door relates to the technical field of elevators and comprises a left car door, a right car door and a linear guide rail, the rear sides of the upper ends of the left car door and the right car door are slidably arranged on the linear guide rail, a left moving unit is arranged on the upper side of the left end of the linear guide rail, and a right moving unit is arranged on the upper side of the right end of the linear guide rail. The left moving unit is connected with the left car door, the right moving unit is connected with the right car door, a traction mechanism is arranged on the upper side of the middle of the linear guide rail and connected with the left moving unit and the right moving unit, and a left buffering anti-pinch mechanism is arranged between the left car door and the traction mechanism. A right buffer anti-pinch mechanism is arranged between the right car door and the traction mechanism; the elevator car door can effectively prevent the elevator door from clamping a person or an object, when the object or the person is clamped, the car door can be automatically opened, the clamping injury accident is avoided, soft buffering can be provided, rigid collision is avoided, the buffering and protecting effects are further enhanced, and the automatic reset function is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, in particular to an anti-pinch safety elevator door device. Background Art

[0002] In the existing technology, as an indispensable vertical transportation tool in modern buildings, the safety of elevators has always been the focus of people's attention. Traditional elevator door systems, especially the car door part, mainly rely on mechanical limit switches and photoelectric sensors to achieve anti-pinch protection functions. However, these traditional methods still have some shortcomings in practical applications.

[0003] Mechanical limit switches are usually set at the edge of the elevator door. When the door encounters an obstacle, the switch is triggered and the elevator door stops closing and may reverse and open. However, due to the limited sensitivity and reliability of mechanical limit switches, sometimes they may not respond in time when clamping small objects or human parts, thus posing a safety hazard.

[0004] Photoelectric sensors detect the presence of objects between elevator doors by emitting and receiving light beams. When the light beam is blocked, the sensor sends a signal to control the elevator doors to stop closing. Although photoelectric sensors can work effectively in most cases, their detection accuracy may be affected in some special cases, such as when the light is blocked by transparent objects or the sensor surface is contaminated.

[0005] In addition, the existing elevator door system often responds in a simple way when encountering obstacles, usually simply stopping closing or reversing to open, lacking more intelligent processing and response measures. At the same time, during the closing process of the elevator door, if an object or person collides with the door body, it often generates a large impact force, which may cause damage to both the object and the person. Summary of the invention

[0006] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an elevator door anti-pinch safety car door device, which aims to overcome the limitations of the prior art through innovative structural design and working principle, and provide more comprehensive and effective safety protection for the elevator door system.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] An elevator door anti-pinch safety car door device comprises a left car door, a right car door and a linear guide rail, wherein the upper rear sides of the left car door and the right car door are slidably arranged on the linear guide rail, a left moving unit is arranged on the upper side of the left end of the linear guide rail, and a right moving unit is arranged on the upper side of the right end of the linear guide rail, the left moving unit is connected to the left car door, and the right moving unit is connected to the right car door, a traction mechanism is arranged on the upper side of the middle part of the linear guide rail, and the traction mechanism is respectively connected to the left moving unit and the right moving unit, a left buffer anti-pinch mechanism is arranged between the left car door and the traction mechanism, and a right buffer anti-pinch mechanism is arranged between the right car door and the traction mechanism;

[0009] The left buffer anti-pinch mechanism comprises a left rubber sleeve fixedly arranged on the inner side of the left car door, the inner side surface of the left rubber sleeve is an arc-shaped surface, a left rotating groove is arranged inside the left car door and close to the inner side of the left car door, a left rotating plate is arranged for rotation inside the left rotating groove, one side of the left rotating plate extends through the inner side of the left car door to the inside of the left rubber sleeve, the other side of the left rotating plate is hingedly arranged inside the left rotating groove, a left rotating frame is fixedly arranged on the upper end of the inner side of the left rotating plate, the outer end of the left rotating frame passes through the rear side of the left car door and extends to the top of the left car door, a left baffle rod is fixedly arranged on the outer end of the left rotating frame, a left return spring is arranged at the hinge between the left rotating plate and the left rotating groove, and the side of the left rotating plate located inside the left rubber sleeve is arranged as an arc-shaped surface or an inclined surface; a left baffle is fixedly arranged on one side of the inner side of the left car door;

[0010] The right buffer anti-pinch mechanism comprises a right rubber sleeve fixedly arranged on the inner side of the right car door, the inner side surface of the right rubber sleeve is an arc-shaped surface, a right rotating groove is arranged inside the right car door and close to the inner side of the right car door, a right rotating plate is arranged for rotation inside the right rotating groove, one side of the right rotating plate extends through the inner side of the right car door to the inside of the right rubber sleeve, the other side of the right rotating plate is hingedly arranged inside the right rotating groove, a right rotating frame is fixedly arranged on the upper end of the inner side of the right rotating plate, the outer end of the right rotating frame passes through the rear side of the right car door and extends to the top of the right car door, a right baffle rod is fixedly arranged on the outer end of the right rotating frame, a right return spring is arranged at the hinge between the right rotating plate and the right rotating groove, and the side of the right rotating plate located inside the right rubber sleeve is arranged as an arc-shaped surface or an inclined surface; a right baffle is fixedly arranged on one side of the inner side of the right car door;

[0011] When the left car door and the right car door are closed, the arc surface of the left rubber sleeve and the arc surface of the left rubber sleeve fit each other, the right baffle is located outside the side of the left rotating plate, the left baffle is located outside the side of the right rotating plate, and the traction belt is respectively located on the upper and lower sides of the wheel groove.

[0012] The preferred technical solution, the traction mechanism comprises a fixed seat fixedly arranged on the upper middle side of the linear guide rail, the front side of the fixed seat is fixedly arranged with a fixed sleeve, the outer side of the fixed sleeve is rotatably arranged with a traction pulley, the front side of the traction pulley is fixedly arranged with a stop pin, the inner side of the fixed sleeve is slidably arranged with a rotating sleeve, the inner side of the rotating sleeve is provided with a rotating shaft, one end of the rotating shaft is rotatably provided with an axis bracket, the front end side of the rotating sleeve is fixedly arranged with a rotating arm, a compression spring is arranged between the end side of the rotating sleeve and the fixed seat, the front side of the fixed seat is slidably arranged with a baffle through a guide rod, the upper part of the baffle is a ring sheet, the ring sheet is concentric with the rotating shaft, the lower part of the baffle is a straight plate sheet, the rear side of the straight plate sheet is affixed to the front sides of the left and right baffle rods, the rotating arm slides on the front side of the baffle sheet, the rear end side of the rotating shaft is transmission-connected with a traction motor, the inner side of the rotating sleeve is provided with a key slot, the rotating shaft is fixedly provided with a sliding key, and the sliding key is slidably arranged inside the key slot.

[0013] According to a preferred technical solution, two mutually parallel wheel grooves are arranged on the wheel surface of the traction pulley, and traction belts are fixedly arranged in the wheel grooves respectively.

[0014] A preferred technical solution, the left moving unit includes a left moving seat fixedly arranged on the upper side of the left end of the linear guide rail, a left moving groove is arranged on the inner side of the left moving seat, a left moving block is slidably arranged inside the left moving groove, a left sliding groove is arranged on the side of the left moving groove, a left connecting frame is fixedly arranged on the outer end side of the left moving block, the lower end of the left connecting frame is fixedly connected to the left car door, the inner end of the left moving block is fixedly connected to one of the traction belts, and a left tension spring is arranged between the outer end side of the left moving block and the inner end side of the left moving groove.

[0015] A preferred technical solution, the right moving unit includes a right moving seat fixedly arranged on the upper side of the right end of the linear guide rail, a right moving groove is arranged on the inner side of the right moving seat, a right moving block is slidingly arranged inside the right moving groove, a right sliding groove is arranged on the side of the right moving groove, a right connecting frame is fixedly arranged on the outer end side of the right moving block, the lower end of the right connecting frame is fixedly connected to the right car door, the inner end of the right moving block is connected to one of the traction belts, and a right tension spring is arranged between the outer end side of the right moving block and the inner end side of the right moving groove.

[0016] According to a preferred technical solution, the traction motor is connected to the rotating shaft through a transmission belt and a pulley.

[0017] According to a preferred technical solution, a fixed mounting plate is evenly fixedly disposed on the rear side of the linear guide rail.

[0018] According to a preferred technical solution, the left rubber sleeve and the right rubber sleeve are made of highly elastic rubber material.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] Anti-pinch protection function: The left buffer anti-pinch mechanism and the right buffer anti-pinch mechanism in the device can effectively prevent the elevator door from pinching people or objects during the closing process. When it is detected that an object or person is pinched, the car door will automatically open, avoiding pinching accidents and improving the safety of elevator use.

[0021] Buffering and protection: The left and right rubber sleeves are made of highly elastic rubber material, which can provide soft buffering when in contact with objects or people, reducing the impact and damage of collision. At the same time, the rotating design of the left and right rotating plates avoids rigid collision, further enhancing the buffering and protection effects.

[0022] Automatic reset function: Once the car door encounters an obstacle during the closing process and opens automatically, the device can use the force of the left tension spring and the right tension spring to restore the car door to its initial open state without manual intervention, thereby improving the automation and intelligence level of the elevator.

[0023] Stable and reliable operation: The design of the traction mechanism ensures the smooth operation of the car door during closing and opening. The traction belt, traction pulley and traction motor work together to achieve precise control of the car door. At the same time, the coordinated design of the baffle, rotating arm and baffle pin ensures that the car door can stop and reverse in time when encountering obstacles, improving the stability and reliability of the device.

[0024] Compact structure and easy maintenance: The entire device has a compact structure, and the connections between components are reasonable and easy to disassemble, which is convenient for daily maintenance and troubleshooting. At the same time, the setting of the fixed mounting plate also facilitates the installation and fixing of the device in the elevator shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the front structure when the left and right car doors of the present invention are opened;

[0026] Figure 2 It is a schematic diagram of the rear structure of the present invention when the left and right car doors are opened;

[0027] Figure 3 It is a schematic diagram of the front structure when the left and right car doors of the present invention are closed;

[0028] Figure 4 It is a partial cross-sectional structural schematic diagram of the traction mechanism of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the rotating sleeve and the rotating arm of the present invention;

[0030] Figure 6 It is a schematic diagram of the matching structure of the baffle plate, the guide rod, the left baffle rod and the right baffle rod of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the left buffer anti-pinch mechanism and the right buffer anti-pinch mechanism when the left car door and the right car door are opened according to the present invention;

[0032] Figure 8 It is a schematic structural diagram of a left buffer anti-pinch mechanism and a right buffer anti-pinch mechanism when there is an object between the left car door and the right car door of the present invention;

[0033] Fig. 9 It is a schematic diagram of the cooperation structure of the left buffer anti-pinch mechanism and the right buffer anti-pinch mechanism when the left car door and the right car door are closed in the present invention;

[0034] Fig.10 It is a partial structural schematic diagram of the left buffer anti-pinch mechanism and the right buffer anti-pinch mechanism when the left car door and the right car door are opened in the present invention;

[0035] Fig.11 It is a schematic cross-sectional structural diagram of the left moving unit of the present invention;

[0036] Fig.12 It is a schematic cross-sectional structural diagram of the right moving unit of the present invention;

[0037] In the figure: 1, left car door; 2, right car door; 3, linear guide rail; 4, fixed mounting plate; 5, left moving unit; 6, right moving unit; 7, traction mechanism; 8, left buffer anti-clamping mechanism; 9, right buffer anti-clamping mechanism; 501, left moving seat; 502, left moving groove; 503, left moving block; 504, left sliding groove; 505, left connecting frame; 506, left tension spring; 601, right moving seat; 602, right moving groove; 603, right moving block; 604, right sliding groove; 605, left connecting frame; 606, right tension spring; 701, fixed seat; 702, fixed sleeve; 703, traction pulley; 704, stop pin; 705, rotating sleeve; 706, rotating shaft; 707 , shaft bracket; 708, rotating arm; 709, compression spring; 710, guide rod; 711, baffle; 712, traction motor; 713, keyway; 714, sliding key; 715, wheel groove; 716, traction belt; 717, transmission belt; 718, pulley; 801, left rubber sleeve; 802, left rotating groove; 803, left rotating plate; 804, left rotating frame; 805, left baffle; 806, left return spring; 807, left baffle; 901, right rubber sleeve; 902, right rotating groove; 903, right rotating plate; 904, right rotating frame; 905, right baffle; 906, right return spring; 907, right baffle; 71101, ring piece; 71102, straight plate. DETAILED DESCRIPTION

[0038] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0039] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0040] like Figure 1 and 2 As shown, an elevator door anti-pinch safety car door device comprises a left car door 1, a right car door 2 and a linear guide 3, the upper rear sides of the left car door 1 and the right car door 2 are slidably arranged on the linear guide 3, a left moving unit 5 is arranged on the upper left side of the linear guide 3, a right moving unit 6 is arranged on the upper right side of the linear guide 3, the left moving unit 5 is connected to the left car door 1, and the right moving unit 6 is connected to the right car door 2, a traction mechanism 7 is arranged on the upper middle side of the linear guide 4, the traction mechanism 7 is respectively connected to the left moving unit 5 and the right moving unit 6, a left buffer anti-pinch mechanism 8 is arranged between the left car door 1 and the traction mechanism 7, and a right buffer anti-pinch mechanism 9 is arranged between the right car door 2 and the traction mechanism 7; a fixed mounting plate 4 is evenly fixed on the rear side of the linear guide 4.

[0041] like Figure 7 , Figure 8 and Fig.10 As shown, the left buffer anti-pinch mechanism 8 includes a left rubber sleeve 801 fixedly arranged on the inner side of the left car door 1, the inner side of the left rubber sleeve 801 is an arc-shaped surface, a left rotating groove 802 is arranged inside the left car door 1 and close to the inner side of the left car door 1, and a left rotating plate 803 is arranged inside the left rotating groove 802 for rotation, one side of the left rotating plate 803 extends through the inner side of the left car door 1 to the inside of the left rubber sleeve 801, and the other side of the left rotating plate 803 is hingedly arranged inside the left rotating groove 802 A left rotating frame 804 is fixedly provided on the upper end of the inner side of the left rotating plate 803, and the outer end of the left rotating frame 804 passes through the rear side of the left car door 1 and extends to the top of the left car door 1. A left stopper 805 is fixedly provided on the outer end of the left rotating frame 804. A left return spring 806 is provided at the hinge between the left rotating plate 803 and the left rotating groove 802. The side of the left rotating plate 803 located inside the left rubber sleeve 801 is set as an arc surface or an inclined surface; a left stopper 807 is fixedly provided on one side of the inner side of the left car door 1;

[0042] like Figure 7 , Figure 8 and Fig.10As shown, the right buffer anti-pinch mechanism 9 includes a right rubber sleeve 901 fixedly arranged on the inner side of the right car door 2, the inner side of the right rubber sleeve 901 is an arc-shaped surface, a right rotating groove 902 is arranged inside the right car door 2 and close to the inner side of the right car door 2, a right rotating plate 903 is arranged inside the right rotating groove 902, one side of the right rotating plate 903 extends through the inner side of the right car door 2 to the inside of the right rubber sleeve 901, and the other side of the right rotating plate 903 is hingedly arranged inside the right rotating groove 902 A right rotating frame 904 is fixedly provided on the upper end of the inner side of the right rotating plate 903, the outer end of the right rotating frame 904 passes through the rear side of the right car door 2 and extends to the top of the right car door 2, a right stopper 905 is fixedly provided on the outer end of the right rotating frame 904, a right return spring 906 is provided at the hinge between the right rotating plate 903 and the right rotating groove 902, and one side of the right rotating plate 903 located inside the right rubber sleeve 901 is provided as an arc surface or an inclined surface; a right stopper 907 is fixedly provided on one side of the inner side of the right car door 2;

[0043] like Fig. 9 As shown, when the left car door 1 and the right car door 2 are closed, the arc surface of the left rubber sleeve 801 and the arc surface of the right rubber sleeve 901 fit each other, the right baffle 907 is located outside the side of the left rotating plate 803, and the left baffle 807 is located outside the side of the right rotating plate 903. The left rubber sleeve 801 and the right rubber sleeve 901 are made of high elastic rubber material.

[0044] like Figure 1-Figure 5As shown, the traction mechanism 7 includes a fixed seat 701 fixedly arranged on the upper middle side of the linear guide rail 4, a fixed sleeve 702 is fixedly arranged on the front side of the fixed seat 701, a traction pulley 703 is rotatably arranged on the outer side of the fixed sleeve 702, a stop pin 704 is fixedly arranged on the front side of the traction pulley 703, a rotating sleeve 705 is slidably arranged on the inner side of the fixed sleeve 702, a rotating shaft 706 is arranged on the inner side of the rotating sleeve 705, an axis bracket 707 is rotatably arranged on one end of the rotating shaft 706, a rotating arm 708 is fixedly arranged on the front end side of the rotating sleeve 705, a compression spring 709 is arranged between the end side of the rotating sleeve 705 and the fixed seat 701, and the front side of the fixed seat 701 is fixedly arranged by The guide rod 710 is slidably provided with a baffle 711, and both the guide rod 710 and the baffle 711 are made of a light aluminum alloy. The upper part of the baffle 711 is a ring plate 71101, which is concentric with the rotating shaft 706. The lower part of the baffle 711 is a straight plate 71102, and the rear side of the straight plate 71102 is attached to the front side of the left baffle rod 805 and the right baffle rod 905. The rotating arm 708 slides on the front side of the baffle 711. The rear end side of the rotating shaft 706 is connected to the traction motor 712 in a transmission manner. The inner side of the rotating sleeve 705 is provided with a key slot 713, and the rotating shaft 705 is fixedly provided with a sliding key 714, which is slidably provided inside the key slot 713. Two parallel wheel grooves 715 are provided on the wheel surface of the traction pulley 703, and traction belts 716 are fixedly provided in the wheel grooves 715, and the traction belts 716 are respectively located at the upper and lower sides of the wheel grooves 715. The traction motor 712 is connected to the rotating shaft 706 via a transmission belt 717 and a pulley 718 .

[0045] like Figure 1 , Figure 2 , Figure 3 and Fig.11 As shown, the left moving unit 5 includes a left moving seat 501 fixedly arranged on the upper left end of the linear guide rail 4, a left moving groove 502 is arranged on the inner side of the left moving seat 501, a left moving block 503 is slidingly arranged inside the left moving groove 502, a left sliding groove 504 is arranged on the side of the left moving groove 502, a left connecting frame 505 is fixedly arranged on the outer end side of the left moving block 503, the lower end of the left connecting frame 505 is fixedly connected to the left car door 1, the inner end of the left moving block 503 is fixedly connected to one of the traction belts 716, the left connecting frame 505 is slidingly connected to the left sliding groove 504, and a left tension spring 506 is arranged between the outer end side of the left moving block 503 and the inner end side of the left moving groove 502.

[0046] like Figure 1 , Figure 2 , Figure 3 and Fig.12As shown, the right moving unit 6 includes a right moving seat 601 fixedly arranged on the upper right end of the linear guide rail 4, a right moving groove 602 is arranged on the inner side of the right moving seat 601, a right moving block 603 is slidingly arranged inside the right moving groove 602, a right sliding groove 604 is arranged on the side of the right moving groove 602, a right connecting frame 605 is fixedly arranged on the outer end side of the right moving block 603, the lower end of the right connecting frame 605 is fixedly connected to the right car door 2, the inner end of the right moving block 603 is fixedly connected to one of the traction belts 716, the right connecting frame 605 is slidingly connected to the right sliding groove 604, and a right tension spring 606 is arranged between the outer end side of the right moving block 603 and the inner end side of the right moving groove 602.

[0047] The specific working principle of the present invention is as follows:

[0048] like Figure 1-Figure 12As shown, the initial position of the elevator door anti-pinch safety car door device, the left car door 1 and the right car door 2 are open, the traction motor 712 drives the rotating shaft 706 to rotate clockwise through the transmission belt 717 and the pulley 718, the rotating shaft 706 drives the rotating sleeve 705 to rotate clockwise through the keyway 713 and the sliding key 714, the rotating sleeve 705 drives the traction pulley 703 to rotate clockwise through the rotating arm 708 and the stop pin 704, the traction pulley 703 drives the left moving block 503 and the right moving block 603 to move toward the inner end side respectively through the traction belt 716, and the left moving block 503 and the right moving block 603 are moved to the inner end side. The left car door 1 and the right car door 2 are driven to move inward along the linear guide rail 3 and gradually close through the left connecting frame 505 and the right connecting frame 605 respectively. When the left car door 1 and the right car door 2 move inward, the rotating arm 708 slides in front of the blocking piece 711, and the rear side of the straight plate piece 71102 slides in front of the left blocking rod 805 and the right blocking rod 905. When the left car door 1 and the right car door 2 move inward and there is an object or a person between the left car door 1 and the right car door 2 and touches the left car door 1 and / or the right car door 2, the left rubber sleeve 801 and / or the right rubber sleeve 901 are squeezed, and the left rotating plate 80 3 and / or the right rotating plate 903 rotates and drives the left rotating frame 804 and / or the right rotating frame 904 to rotate, so that the left blocking rod 805 and / or the right blocking rod 905 move forward and squeeze the blocking piece 711, and the blocking piece 711 moves forward to drive the rotating arm 708 to move forward, so that the rotating arm 708 passes over the blocking pin 704 and disengages from the blocking pin 704, at this time, the left moving block 503 and the right moving block 603 are respectively acted upon by the left tension spring 506 and the right tension spring 606, and the left moving block 503 and the right moving block 603 will respectively drive the left car door 1 and the right car door 2 to return to the originally opened state. In the process of restoring the opening of the left car door 1 and the right car door 2, the left rotating plate 803 and / or the right rotating plate 903 are no longer squeezed and the left return spring 806 and / or the right return spring 906 will also restore to the initial position. The left blocking rod 805 and / or the right blocking rod 905 no longer squeeze the blocking piece 711. Under the action of the compression spring 709, the blocking piece 711 is restored to its original position through the rotating sleeve 705 and the rotating arm 708. The rotating arm 708 continues to rotate clockwise to encounter the blocking pin 704 again and drive the traction pulley 703 to rotate again, forming a cycle.

[0049] like Figure 4 and 5As shown in the figure, when there is no object or person between the left car door 1 and the right car door 2, the left rotating plate 803 and / or the right rotating plate 903 will not be squeezed and rotated, and the left car door 1 and the right car door 2 will eventually close. When the left car door 1 and the right car door 2 are closed, due to the structures of the left rubber sleeve 801, the right rubber sleeve 901, the left rotating plate 803 and the right rotating plate 903 and the left baffle 807 and the right baffle 907, the right baffle 907 is located at the side of the left rotating plate 803. On the outside of the left side, the left baffle plate 807 is located on the outside of the side of the right rotating plate 903, so as to prevent the left rotating plate 803 and the right rotating plate 903 from rotating incorrectly when the left car door 1 and the right car door 2 are closed, causing the left car door 1 and the right car door 2 to reopen. After the left car door 1 and the right car door 2 are closed normally, the traction motor 712 stops transmitting. When the car door needs to be opened normally, the traction motor 712 rotates counterclockwise, and the left car door 1 and the right car door 2 can be slowly opened.

[0050] The left buffer anti-pinch mechanism 8 and the right buffer anti-pinch mechanism 9 of the present invention not only have the function of anti-pinch, but also when a person or object touches the left car door 1 and the right car door 2, due to the elastic buffering effect of the left rubber sleeve 801 and the right rubber sleeve 901 themselves, the left rotating plate 803 and the right rotating plate 903 are always rotating, and the left rotating plate 803 and the right rotating plate 903 are not in rigid contact with the body or object, thereby preventing the body or object from rigidly colliding with the car door, and playing a good buffering and protective role. The present invention can be used in conjunction with the existing photoelectric sensor anti-pinch device. When the photoelectric sensor fails to play a role in time, the present invention can play a secondary protection role.

[0051] The preferred implementation modes of the present application are described in detail above, but the present application is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present application.

Claims

1. An elevator door anti-pinch safety door device, comprising a left door (1), a right door (2) and a linear guide rail (3), wherein the upper rear sides of the left door (1) and the right door (2) are slidably arranged on the linear guide rail (4), characterized in that: A left movable unit (5) is arranged on the upper left side of the linear guide rail (4), and a right movable unit (6) is arranged on the upper right side of the linear guide rail (4). The left movable unit (5) is connected to the left car door (1), and the right movable unit (6) is connected to the right car door (2). A traction mechanism (7) is arranged on the upper middle side of the linear guide rail (4), and the traction mechanism (7) is respectively connected to the left movable unit (5) and the right movable unit (6). A left buffer anti-clamping mechanism (8) is arranged between the left car door (1) and the traction mechanism (7), and a right buffer anti-clamping mechanism (9) is arranged between the right car door (2) and the traction mechanism (7). The left buffer anti-pinch mechanism (8) comprises a left rubber sleeve (801) fixedly arranged on the inner side of the left car door (1), the inner side surface of the left rubber sleeve (801) is an arc-shaped surface, a left rotating groove (802) is arranged inside the left car door (1) and close to the inner side of the left car door (1), a left rotating plate (803) is arranged inside the left rotating groove (802), one side of the left rotating plate (803) extends through the inner side of the left car door (1) to the inside of the left rubber sleeve (801), and the other side of the left rotating plate (803) is hingedly arranged inside the left rotating groove (802) A left rotating frame (804) is fixedly provided on the upper end of the inner side of the left rotating plate (803); the outer end of the left rotating frame (804) passes through the rear side of the left car door (1) and extends above the left car door (1); a left stopper (805) is fixedly provided on the outer end of the left rotating frame (804); a left return spring (806) is provided at the hinge between the left rotating plate (803) and the left rotating groove (802); a side of the left rotating plate (803) located inside the left rubber sleeve (801) is provided as an arc surface or an inclined surface; a left stopper (807) is fixedly provided on one side of the inner side of the left car door (1); The right buffer anti-pinch mechanism (9) comprises a right rubber sleeve (901) fixedly arranged on the inner side of the right car door (2), the inner side surface of the right rubber sleeve (901) is an arc-shaped surface, a right rotating groove (902) is arranged inside the right car door (2) and close to the inner side of the right car door (2), a right rotating plate (903) is arranged inside the right rotating groove (902), one side of the right rotating plate (903) extends through the inner side of the right car door (2) to the inside of the right rubber sleeve (901), and the other side of the right rotating plate (903) is hingedly arranged inside the right rotating groove (902) A right rotating frame (904) is fixedly provided on the upper end of the inner side of the right rotating plate (903); the outer end of the right rotating frame (904) passes through the rear side of the right car door (2) and extends above the right car door (2); a right stopper (905) is fixedly provided on the outer end of the right rotating frame (904); a right return spring (906) is provided at the hinge between the right rotating plate (903) and the right rotating groove (902); a side of the right rotating plate (903) located inside the right rubber sleeve (901) is provided as an arc surface or an inclined surface; a right stopper (907) is fixedly provided on one side of the inner side of the right car door (2); When the left car door (1) and the right car door (2) are closed, the arcuate surface of the left rubber sleeve (801) and the arcuate surface of the left rubber sleeve (901) fit each other, the right baffle (907) is located outside the side of the left rotating plate (803), and the left baffle (807) is located outside the side of the right rotating plate (903).

2. The elevator door anti-pinch safety door device according to claim 1, characterized in that: The traction mechanism (7) comprises a fixed seat (701) fixedly arranged on the upper middle side of the linear guide rail (4); a fixed sleeve (702) is fixedly arranged on the front side of the fixed seat (701); a traction pulley (703) is rotatably arranged on the outer side of the fixed sleeve (702); a stop pin (704) is fixedly arranged on the front side of the traction pulley (703); a rotating sleeve (705) is slidably arranged on the inner side of the fixed sleeve (702); a rotating shaft (706) is arranged on the inner side of the rotating sleeve (705); a shaft bracket (707) is rotatably arranged on one end of the rotating shaft (706); a rotating arm (708) is fixedly arranged on the front end side of the rotating sleeve (705); a compression spring (709) is arranged between the end side of the rotating sleeve (705) and the fixed seat (701); A baffle (711) is slidably provided on the front side of the fixed seat (701) through a guide rod (710); the upper part of the baffle (711) is a ring plate (71101); the ring plate (71101) is concentric with the rotating shaft (706); the lower part of the baffle (711) is a straight plate (71102); the rear side of the straight plate (71102) is attached to the front side of the left baffle rod (805) and the right baffle rod (905); the rotating arm (708) slides on the front side of the baffle (711); the rear end side of the rotating shaft (706) is transmission-connected with a traction motor (712); a key slot (713) is provided on the inner side of the rotating sleeve (705); a sliding key (714) is fixedly provided on the rotating shaft (705); and the sliding key (714) is slidably provided inside the key slot (713).

3. The installation method of an elevator door anti-pinch safety door device according to claim 2, characterized in that: The wheel surface of the traction pulley (703) is provided with two mutually parallel wheel grooves (715), and traction belts (716) are fixedly arranged in the wheel grooves (715), and the traction belts (716) are respectively located on the upper and lower sides of the wheel grooves (715).

4. The installation method of the elevator door anti-pinch safety door device according to claim 3 is characterized in that: The left movable unit (5) comprises a left movable seat (501) fixedly arranged on the upper left end of the linear guide rail (4); a left movable groove (502) is arranged on the inner side of the left movable seat (501); a left movable block (503) is slidably arranged inside the left movable groove (502); a left sliding groove (504) is arranged on the side of the left movable groove (502); a left connecting frame (505) is fixedly arranged on the outer end side of the left movable block (503); the lower end of the left connecting frame (505) is fixedly connected to the left car door (1); the inner end of the left movable block (503) is fixedly connected to one of the traction belts (716); the left connecting frame (505) is slidably connected to the left sliding groove (504); and a left tension spring (506) is arranged between the outer end side of the left movable block (503) and the inner end side of the left movable groove (502).

5. The installation method of the elevator door anti-pinch safety door device according to claim 3 is characterized in that: The right moving unit (6) comprises a right moving seat (601) fixedly arranged on the upper right end of the linear guide rail (4); a right moving groove (602) is arranged on the inner side of the right moving seat (601); a right moving block (603) is slidably arranged inside the right moving groove (602); a right sliding groove (604) is arranged on the side of the right moving groove (602); a right connecting frame (605) is fixedly arranged on the outer end side of the right moving block (603); the lower end of the right connecting frame (605) is fixedly connected to the right car door (2); the inner end of the right moving block (603) is fixedly connected to one of the traction belts (716); the right connecting frame (605) is slidably connected to the right sliding groove (604); and a right tension spring (606) is arranged between the outer end side of the right moving block (603) and the inner end side of the right moving groove (602).

6. The installation method of an elevator door anti-pinch safety door device according to claim 2, characterized in that: The traction motor (712) is connected to the rotating shaft (706) via a transmission belt (717) and a pulley (718).

7. The installation method of an elevator door anti-pinch safety door device according to claim 2, characterized in that: A fixed mounting plate (10) is evenly and fixedly arranged on the rear side of the linear guide rail (4).

8. A method for installing an elevator door anti-pinch safety door device according to any one of claims 1 to 7, characterized in that: The left rubber sleeve (801) and the right rubber sleeve (901) are made of highly elastic rubber material.

Images