Movable buffer for elevator

Abstract

The invention relates to the technical field of elevator buffer seats, in particular to a movable buffer for an elevator, which comprises an anti-collision pad and two single-side supporting mechanisms, the anti-collision pad is fixedly mounted on a base, and each single-side supporting mechanism comprises a buffer, a swing arm, a torsion spring and a clamping mechanism. The swing arm can be pushed to rotate through the torsional spring, and the swing arm drives the buffer to move to the bottom of a cross beam of an elevator car at a higher speed in a rotating motion mode. And under the condition that the elevator is powered on, the swing arm can be released through the clamping mechanism, so that the swing arm drives the buffer for supporting. And in case of power failure, if the elevator does not fall, the clamping mechanism keeps clamping the swing arm, and falling occurs, the elevator car can drive the clamping mechanism to be separated from the swing arm, so that the device can be used under the condition of power failure, and the elevator car is protected.

Description

Technical Field

[0001] The invention relates to the technical field of elevator buffer seats, and in particular to a movable buffer for elevators. Background Art

[0002] The elevator safety equipment mainly includes the following speed limiters, safety clamps and buffers, which protect the car when the safety clamps fail to brake effectively or when the car stalls at a speed not exceeding the rated speed at a low level. However, the buffer distance of the buffer can affect the buffering effect of the elevator bridge box, and because the elevator shaft pit is too shallow, the height of the buffer cannot be too high, which affects the buffering effect.

[0003] Chinese patent application number: CN201910613448.3, title: Elevator height variable buffer group, discloses that the buffer body is composed of a movable main buffer whose height is calculated according to the rated speed of the elevator and a fixed auxiliary buffer whose height is calculated according to the crawling speed of the elevator. The crawling speed of the elevator is less than the rated speed of the elevator. A guide seat is provided at the bottom of the movable main buffer. The guide seat is located on a sliding guide rail fixed to the bottom surface of the elevator pit. A stop block is provided at one end of the sliding guide rail and a stop block is provided at the other end. A compression spring is connected between the guide seat and the stop block. A moving wire rope is also connected to one side of the guide seat connected to the compression spring. The end of the moving wire rope is connected to a driving mechanism, and the driving mechanism is electrically connected to a crawling speed monitoring mechanism. The present invention fundamentally solves the problem that the existing elevator buffer is limited by the rated speed of the elevator, resulting in a deeper elevator pit, greatly reduces the depth of the elevator pit, saves construction costs, and facilitates elevator inspection and maintenance.

[0004] The above scheme uses speed measurement to drive the buffer to buffer the bottom of the elevator bridge box when the falling speed of the elevator bridge box exceeds the preset value. However, this scheme uses linear movement to drive the buffer to move. In actual use, this method is difficult to move to the required position in time because the linear movement takes a long time. In addition, the above device cannot be used in the case of power failure, and the probability of failure caused by power failure of the elevator increases significantly. Therefore, it is necessary to design a mobile buffer for elevators, which can move the buffer to the bottom of the elevator bridge box in a faster way and protect the bottom of the falling elevator in the case of power failure. Summary of the invention

[0005] In view of the above-mentioned technical deficiencies, the object of the present invention is to provide a movable buffer for elevators, which can move the buffer to the bottom of the elevator bridge box in a faster manner and can protect the bottom of the falling elevator in the event of a power outage.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: the present invention provides a mobile buffer for elevators, including an anti-collision pad fixedly mounted on a base and two unilateral support mechanisms, each unilateral support mechanism includes a buffer, a swing arm, a torsion spring and a clamping mechanism, one end of the swing arm is rotatably mounted on the base, the buffer is fixedly mounted on the top of the other end of the swing arm, the top of the buffer is higher than the top of the anti-collision pad, the torsion spring is used to apply an elastic force to the swing arm close to the anti-collision pad, the clamping mechanism is fixedly mounted on the side panel, the clamping mechanism is clamped with the swing arm in the initial state, and a hook hole for the clamping mechanism to clamp is opened on the swing arm.

[0007] Preferably, the clamping mechanism includes a linear puller, a hook plate, a sliding column and a rotating column. The linear puller is fixedly mounted on the wall, the sliding column is fixedly mounted on the output end of the linear puller, one end of the hook plate is provided with a waist-shaped slide groove, the sliding column is inserted into the waist-shaped slide groove, the rotating column is fixedly mounted on the side plate, the middle part of the hook plate is rotatably mounted on the rotating column, and the other end of the hook plate is hooked with the swing arm.

[0008] Preferably, the linear puller includes an electric pull rod, a moving block 1 and a moving block 2, the electric pull rod is fixedly installed on the wall, the moving block 1 is fixedly installed on the output end of the electric pull rod, the moving block 2 can be horizontally slidably installed on the side panel, the sliding column 1 is fixedly installed on the moving block 2, both the moving block 1 and the moving block 2 are provided with sockets, a plug-in mechanism is provided between the moving block 1 and the moving block 2, the plug-in mechanism is used to clamp the two sockets, the plug-in mechanism is fixedly installed on the wall, a power-off pull-out mechanism is fixedly provided above the plug-in mechanism, the power-off pull-out mechanism is used to pull the plug-in mechanism upward after power is off, and an elastic pushing mechanism is fixedly provided on the base, the elastic pushing mechanism is used to apply an elastic force close to the electric pull rod to the hook plate.

[0009] Preferably, the plug-in mechanism includes a horizontal slide, a horizontal guide plate, a vertical slide, a vertical slide, a tilting mechanism and two plug-in posts, the two plug-in posts are fixedly installed at the bottom of the horizontal slide, the two horizontal slides are respectively inserted into the sockets of the moving block one and the moving block two, the horizontal slide slides with the horizontal guide plate, the horizontal guide plate is fixedly installed at the bottom of the vertical slide, the vertical slide is fixedly installed on the wall, the vertical slide is slidably connected to the vertical slide, the tilting mechanism is fixedly installed on the vertical slide, and the tilting mechanism is used for the power-off withdrawal mechanism to pull the plug-in posts upward.

[0010] Preferably, the tilting mechanism includes a connecting plate 1, a sliding column 2, an articulated seat and a rotating rod. The connecting plate 1 is fixedly installed on the top of the vertical slide seat, the sliding column 2 is fixedly installed on the connecting plate 1, the articulated seat is fixedly installed on the vertical slide, the rotating rod is rotatably connected to the articulated seat, a sliding groove is provided on the rotating rod, the sliding column 2 is inserted in the sliding groove, and the rotating rod is transmission-connected to the power-off withdrawal mechanism.

[0011] Preferably, the power-off withdrawal mechanism includes a guide column, a guide block, a connecting plate 2, a resistance spring 1, two electromagnets and two sliding columns 3. The guide column is fixedly installed on the top of the side plate, the guide block can be installed on the guide column for vertical sliding, the sliding column 3 can be installed on the guide block for horizontal sliding, the connecting plate 2 is fixedly installed on one end of the two sliding columns 3, the electromagnet is fixedly installed on the wall, the two electromagnets are respectively attracted to the two sliding columns 3, the resistance spring 1 is used to apply an elastic force to the connecting plate 2 away from the guide block, one end of the rotating rod is located below the guide block, and a strong magnet is arranged on the top of the guide column, and the strong magnet is attracted to the guide block.

[0012] Preferably, a retaining ring 1 is fixedly provided on the sliding column 3.

[0013] Preferably, the elastic pushing mechanism includes a push column, a guide slide plate, a second resistance spring and a second retaining ring. The guide slide plate is fixedly mounted on the side plate. The push column is slidably connected to the guide slide plate. One end of the push column is in contact with the hook plate. The second retaining ring is fixedly mounted on the push column. The second resistance spring is used to apply an elastic force to the second retaining ring away from the guide slide plate.

[0014] The beneficial effect of the present invention is that the mobile buffer for elevators can push the swing arm to rotate through the torsion spring, and through the rotational motion, the swing arm drives the buffer to move to the bottom of the crossbeam of the elevator car at a faster speed. When the elevator is powered on, the swing arm can be released through the clamping mechanism, so that the swing arm drives the buffer for support. If a power outage occurs, if the elevator does not fall, the clamping mechanism maintains the clamping of the swing arm, and if it falls, the clamping mechanism can be driven by the elevator car to separate from the swing arm, ensuring that the device can be used in the case of a power outage to protect the elevator bridge box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention in an installed state.

[0017] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the linear puller.

[0019] Figure 4 It is a schematic diagram of the partial three-dimensional structure of the linear puller.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the plug-in mechanism and the power-off withdrawal mechanism.

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the plug-in mechanism.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structural decomposition of the tilting mechanism.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the power-off withdrawal mechanism.

[0024] Fig. 9 for Figure 3 A partial enlarged view of point A.

[0025] Explanation of reference numerals: 1. Buffer; 2. Swing arm; 3. Torsion spring; 4. Clamping mechanism; 4a. Linear puller; 4a1. Electric pull rod; 4a2. Moving block 1; 4a3. Moving block 2; 4b. Hook plate; 4b1. Waist-shaped slide; 4c. Sliding column 1; 4d. Rotating column; 5. Base; 5a. Side plate; 6. Anti-collision pad; 7. Plug-in mechanism; 7a. Plug column; 7b. Horizontal slide; 7c. Horizontal guide plate; 7d. Vertical slide; 7e. Vertical Slide plate; 7f, lifting mechanism; 7f1, connecting plate 1; 7f2, sliding column 2; 7f3, hinged seat; 7f4, rotating rod; 7f5, slide groove; 8, power-off extraction mechanism; 8a, electromagnet; 8b, guide column; 8c, guide block; 8d, sliding column 3; 8e, connecting plate 2; 8f, resistance spring 1; 8h, strong magnet; 8s, retaining ring 1; 9, elastic pushing mechanism; 9a, pushing column; 9b, guide slide plate; 9c, resistance spring 2; 9d, retaining ring 2. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment: The present invention provides a movable buffer for an elevator, such as Figure 1-Figure 3As shown, it includes an anti-collision pad 6 fixedly mounted on a base 5 and two unilateral support mechanisms. The anti-collision pad 6 is used to support the bottom crossbeam of the elevator car that falls steadily, and the unilateral support mechanism is used to support the elevator car that falls sharply. Each unilateral support mechanism includes a buffer 1, a swing arm 2, a torsion spring 3 and a clamping mechanism 4. One end of the swing arm 2 is rotatably mounted on the base 5, and the buffer 1 is fixedly mounted on the top of the other end of the swing arm 2. The top of the buffer 1 is higher than the top of the anti-collision pad 6, so that when the buffer 1 rotates to the bottom of the elevator car, the When the elevator car is below the beam, the buffer 1 can contact the bottom beam of the elevator car in priority to the anti-collision pad 6 to support the elevator car that falls sharply. Along the buffer distance of the elevator car, the torsion spring 3 is used to apply an elastic force to the swing arm 2 close to the anti-collision pad 6. One end of the torsion spring 3 is in contact with the side plate 5a of the base 5, and the other end of the torsion spring 3 is fixedly connected to the swing arm 2. The torsion spring 3 is sleeved on the rotating shaft for the swing arm 2 to rotate. The clamping mechanism 4 is fixedly installed on the side plate 5a. The clamping mechanism 4 is clamped with the swing arm 2 in the initial state, wherein the swing arm 2 in the initial state is Figure 1 In the state shown, the buffer 1 in this state will not come into contact with the falling elevator car. A hook hole is provided on the swing arm 2 for the clamping mechanism 4 to clamp. When the buffer 1 is required to come into contact with the sharply falling elevator car, the controller will control the clamping mechanism 4 to separate from the opening on the swing arm 2, and then the swing arm 2 will be pushed by the torsion spring 3 to rotate 100 degrees and move to just below the bottom crossbeam of the elevator car, wherein a blocking bar for positioning and blocking the swing arm 2 may be provided on the base 5, and the blocking bar will come into contact with the swing arm 2 after the swing arm 2 rotates 100 degrees.

[0028] In order to realize the connection and separation between the clamping mechanism 4 and the swing arm 2, for this purpose, Figure 3 and Figure 4 As shown, the clamping mechanism 4 includes a linear puller 4a, a hook plate 4b, a sliding column 4c and a rotating column 4d. The linear puller 4a is fixedly mounted on the wall, the sliding column 4c is fixedly mounted on the output end of the linear puller 4a, one end of the hook plate 4b is provided with a waist-shaped slide groove 4b1, the sliding column 4c is inserted in the waist-shaped slide groove 4b1, the rotating column 4d is fixedly mounted on the side plate 5a, the middle part of the hook plate 4b is rotatably mounted on the rotating column 4d, and the other end of the hook plate 4b is hooked with the swing arm 2. The linear puller 4a is controlled by the controller to work, and the linear puller 4a will pull the sliding column 4c to move, so that the sliding column 4c pulls the hook plate 4b to move around the rotating column 4d, so that 4b is separated from the swing arm 2, so that the swing arm 2 can be pushed and rotated by the torsion spring 3, that is, the clamping separation between the clamping mechanism 4 and the swing arm 2 can be achieved.

[0029] If the elevator falls due to power failure, the linear puller 4a cannot be powered on, which causes the hook plate 4b to be unable to separate from the swing arm 2, so that the swing arm 2 cannot move below the bottom beam of the elevator car, which puts the user in danger. Figure 3 and Figure 5 As shown, the linear puller 4a includes an electric pull rod 4a1, a moving block 4a2 and a moving block 4a3. The electric pull rod 4a1 is fixedly installed on the wall, the moving block 4a2 is fixedly installed on the output end of the electric pull rod 4a1, the moving block 4a3 can be horizontally slidably installed on the side plate 5a, the sliding column 4c is fixedly installed on the moving block 4a3, and the moving blocks 4a2 and 4a3 are both provided with sockets. A plug-in mechanism 7 is provided between the moving blocks 4a2 and 4a3, and the plug-in mechanism 7 is used to clamp the two sockets. The plug-in mechanism 7 is fixedly installed on the wall, and a power-off pull-out mechanism 8 is fixedly provided above the plug-in mechanism 7. The power-off pull-out mechanism 8 is used to pull the plug-in mechanism 7 upward after power is off. An elastic pushing mechanism 9 is fixedly provided on the base 5, and the elastic pushing mechanism 9 is used to apply an elastic force to the hook plate 4b close to the electric pull rod 4a1. When the power is not cut off, the electric pull rod 4a1 works, and the electric pull rod 4a1 will pull the moving block 1 4a2 to move. Since the plug-in mechanism 7 connects the moving block 1 4a2 and the moving block 2 4a3, the moving block 1 4a2 can drive the moving block 2 4a3 to move, so that the moving block 2 4a3 can push the hook plate 4b to move through the sliding column 1 4c. At this time, the elastic pushing mechanism 9 does not play any role, and the elastic pushing mechanism 9 moves with the hook plate 4b to compress or release. After the power is cut off, the plug-in mechanism 7 pulls the power-off extraction mechanism 8 upward, so that the power-off extraction mechanism 8 releases the connection between the moving block 1 4a2 and the moving block 2 4a3. At this time, the elastic pushing mechanism 9 will push the hook plate 4b to move, and the hook plate 4b will rotate and separate from the swing arm 2, that is, after the power is cut off, it can support the bottom crossbeam of the elevator car.

[0030] In the process of linear displacement of the moving block 1 4a2, the plug-in mechanism 7 needs to be driven to move linearly, and the plug-in mechanism 7 also needs to be able to clamp the moving block 1 4a2 and the moving block 2 4a3. To this end, the plug-in mechanism 7 includes a horizontal slide 7b, a horizontal guide plate 7c, a vertical slide 7d, a vertical slide plate 7e, a tilting mechanism 7f and two plug posts 7a. The two plug posts 7a are fixedly installed at the bottom of the horizontal slide 7b. The two horizontal slides 7b are respectively inserted into the plugs of the moving block 1 4a2 and the moving block 2 4a3. In the hole, the horizontal slide 7b slides with the horizontal guide plate 7c, so that when the moving block 1 4a2 and the moving block 2 4a3 move horizontally, the plug column 7a can be driven to move horizontally along the horizontal guide plate 7c at the same time. The horizontal guide plate 7c is fixedly installed at the bottom of the vertical slide 7d, and the vertical slide plate 7e is fixedly installed on the wall. The vertical slide 7d is slidably connected with the vertical slide plate 7e, and the tilting mechanism 7f is fixedly installed on the vertical slide plate 7e. The tilting mechanism 7f is used for the power-off extraction mechanism 8 to pull the plug column 7a upward. When the power-off extraction mechanism 8 performs the power-off operation, the power-off extraction mechanism 8 will pull the vertical slide 7d upward through the tilting mechanism 7f, so that the vertical slide 7d can pull the plug column 7a upward, that is, the separation between the moving block 1 4a2 and the moving block 2 4a3 is realized, wherein when the vertical slide 7d moves upward, the vertical slide plate 7e is used to guide the movement of the vertical slide 7d.

[0031] In order to enable the tilting mechanism 7f to pull up the vertical slide 7d when the power-off extraction mechanism 8 is powered off, Figure 7 As shown, the tilting mechanism 7f includes a connecting plate 1 7f1, a sliding column 2 7f2, a hinge seat 7f3 and a rotating rod 7f4, the connecting plate 1 7f1 is fixedly mounted on the top of the vertical slide seat 7d, the sliding column 2 7f2 is fixedly mounted on the connecting plate 1 7f1, the hinge seat 7f3 is fixedly mounted on the vertical slide plate 7e, the rotating rod 7f4 is rotationally connected with the hinge seat 7f3, a sliding groove 7f5 is provided on the rotating rod 7f4, the sliding column 2 7f2 is inserted in the sliding groove 7f5, and the rotating rod 7f4 is transmission-connected with the power-off extraction mechanism 8. When the power-off extraction mechanism 8 is pressed downward, the power-off extraction mechanism 8 will press the rotating rod 7f4 downward, so that the rotating rod 7f4 pulls the sliding column 2 7f2 upward, and the sliding column 2 7f2 will pull the vertical slide seat 7d upward to slide vertically through the connecting plate 1 7f1, and the sliding column 2 7f2 will slide along the sliding groove 7f5.

[0032] In order to enable the power-off extraction mechanism 8 to press the rotating rod 7f4 downwards after power failure and only when the elevator falls, for this purpose, Figure 8As shown, the power-off withdrawal mechanism 8 includes a guide column 8b, a guide block 8c, a connecting plate 2 8e, a resistance spring 1 8f, two electromagnets 8a and two sliding columns 3 8d. The guide column 8b is fixedly installed on the top of the side plate 5a, the guide block 8c can be vertically slidably installed on the guide column 8b, the sliding column 3 8d can be horizontally slidably installed on the guide block 8c, the connecting plate 2 8e is fixedly installed on one end of the two sliding columns 3 8d, the electromagnet 8a is fixedly installed on the wall, and the two electromagnets 8a are respectively attracted to the two sliding columns 3 8d. By setting up two electromagnets 8a, when one electromagnet 8a fails, the other electromagnet 8a can still ensure the attraction of the sliding column 3 8d to prevent the resistance spring 1 8f from popping out the connecting plate 2 8e. The contact spring 1 8f is used to apply elastic force to the connecting plate 2 8e away from the guide block 8c. The contact spring 1 8f is sleeved on the sliding column 3 8d. One end of the contact spring 1 8f contacts the connecting plate 2 8e, and the other end of the contact spring 1 8f contacts the guide block 8c. One end of the rotating rod 7f4 is located below the guide block 8c. A strong magnet 8h is provided on the top of the guide column 8b, and the strong magnet 8h is attracted to the guide block 8c. When the elevator is powered off, the electromagnet 8a releases the attraction to the sliding column 3 8d, and the contact spring 1 8f will push the connecting plate 2 8e, so that the connecting plate 2 8e moves to a position where it can be contacted by the elevator in the falling process. The elevator pushes the connecting plate 2 8e downward, so that the guide block 8c presses the rotating rod 7f4 downward, and the swing arm 2 can rotate. If the elevator does not fall, the strong magnet 8h will suck the guide block 8c tightly, so that the guide block 8c cannot press the rotating rod 7f4 downward by gravity.

[0033] If the elevator is powered on again, the electromagnet 8a needs to be attracted to pull the sliding column 3 8d so that the sliding column 3 8d returns to its initial position to prevent the falling elevator from contacting the connecting plate 2 8e. Figure 8 As shown, a retaining ring 8s is fixedly provided on the sliding column 3 8d. When the electromagnet 8a is powered off and released, the retaining ring 8s will contact the guide block 8c. In this process, the displacement of the sliding column 3 8d is relatively short, so that when the electromagnet 8a is subsequently powered on, the electromagnet 8a can suck the sliding column 3 8d tightly.

[0034] like Fig. 9As shown, the elastic pushing mechanism 9 includes a push post 9a, a guide plate 9b, a second contact spring 9c and a second retaining ring 9d, the guide plate 9b is fixedly mounted on the side plate 5a, the push post 9a is slidably connected with the guide plate 9b, one end of the push post 9a contacts with the hook plate 4b, the second retaining ring 9d is fixedly mounted on the push post 9a, the second contact spring 9c is used to apply an elastic force to the second retaining ring 9d away from the guide plate 9b, the second contact spring 9c is sleeved on the push post 9a, one end of the second contact spring 9c contacts with the second retaining ring 9d, and the other end of the second contact spring 9c contacts with the guide plate 9b. Through the thrust of the push post 9a, when the plug-in mechanism 7 is released, the push post 9a can push the hook plate 4b to rotate, ensuring that the clamping mechanism 4 can be separated from the swing arm 2.

[0035] When there is no power failure and the elevator car drops sharply, the linear puller 4a pulls the hook plate 4b to rotate, so that the hook plate 4b is separated from the swing arm 2, and the swing arm 2 drives the buffer 1 to rotate 100 degrees and move to a position where it can be contacted by the bottom beam of the elevator car.

[0036] When power is cut off, the electromagnet 8a is released, so that the connecting plate 2 8e is pushed by the spring 1 8f to a position where it can contact the elevator car. If the elevator car does not fall, after the elevator is powered on, the electromagnet 8a re-engages the sliding column 3 8d, so that the connecting plate 2 8e is reset. If the elevator car falls, the elevator car pushes the guide block 8c to move downward, so that the power-off extraction mechanism 8 pulls the upward plug-in mechanism 7, so that the plug-in column 7a is separated from the moving block 1 4a2 and the moving block 2 4a3, and then the elastic pushing mechanism 9 pushes the hook plate 4b to move, so that the hook plate 4b is separated from the swing arm 2, and the swing arm 2 drives the buffer 1 to rotate 100 degrees and moves to a position where it can be contacted by the bottom crossbeam of the elevator car.

[0037] The mobile buffer for elevator can push the swing arm 2 to rotate through the torsion spring 3, and through the rotational movement, the swing arm 2 drives the buffer 1 to move to the bottom of the crossbeam of the elevator car at a faster speed. When the elevator is powered on, the swing arm 2 can be released through the clamping mechanism 4, so that the swing arm 2 drives the buffer 1 for support. If a power outage occurs, if the elevator does not fall, the clamping mechanism 4 keeps the clamping of the swing arm 2, and if it falls, the clamping mechanism 4 can be driven by the elevator car to separate from the swing arm 2, ensuring that the device can be used in the case of a power outage to protect the elevator bridge box.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A mobile buffer for an elevator, characterized in that: The invention comprises an anti-collision pad (6) fixedly mounted on a base (5) and two unilateral support mechanisms, each of which comprises a buffer (1), a swing arm (2), a torsion spring (3) and a clamping mechanism (4), one end of the swing arm (2) being rotatably mounted on the base (5), the buffer (1) being fixedly mounted on the top of the other end of the swing arm (2), the top of the buffer (1) being higher than the top of the anti-collision pad (6), the torsion spring (3) being used for applying an elastic force to the swing arm (2) to approach the anti-collision pad (6), the clamping mechanism (4) being fixedly mounted on the side plate (5a), the clamping mechanism (4) being clamped with the swing arm (2) in an initial state, and a hook hole for clamping the clamping mechanism (4) being provided on the swing arm (2).

2. A movable buffer for an elevator as claimed in claim 1, characterized in that: The clamping mechanism (4) comprises a linear puller (4a), a hook plate (4b), a sliding column (4c) and a rotating column (4d); the linear puller (4a) is fixedly mounted on a wall; the sliding column (4c) is fixedly mounted on an output end of the linear puller (4a); a waist-shaped sliding groove (4b1) is provided at one end of the hook plate (4b); the sliding column (4c) is inserted into the waist-shaped sliding groove (4b1); the rotating column (4d) is fixedly mounted on the side plate (5a); the middle part of the hook plate (4b) is rotatably mounted on the rotating column (4d); and the other end of the hook plate (4b) is hooked with the swing arm (2).

3. A movable buffer for an elevator as claimed in claim 2, characterized in that: The linear puller (4a) comprises an electric pull rod (4a1), a moving block 1 (4a2) and a moving block 2 (4a3), wherein the electric pull rod (4a1) is fixedly mounted on a wall, the moving block 1 (4a2) is fixedly mounted on the output end of the electric pull rod (4a1), the moving block 2 (4a3) is horizontally slidably mounted on the side plate (5a), the sliding column 1 (4c) is fixedly mounted on the moving block 2 (4a3), the moving block 1 (4a2) and the moving block 2 (4a3) are both provided with a socket, and the moving block 1 A plug-in mechanism (7) is provided between the first movable block (4a2) and the second movable block (4a3), the plug-in mechanism (7) being used for clamping the two sockets, the plug-in mechanism (7) being fixedly mounted on the wall, a power-off extraction mechanism (8) being fixedly provided above the plug-in mechanism (7), the power-off extraction mechanism (8) being used for pulling the plug-in mechanism (7) upward after power is off, and an elastic pushing mechanism (9) being fixedly provided on the base (5), the elastic pushing mechanism (9) being used for applying an elastic force to the hook plate (4b) close to the electric pull rod (4a1).

4. A movable buffer for an elevator as claimed in claim 3, characterized in that: The plug-in mechanism (7) comprises a horizontal slide (7b), a horizontal guide plate (7c), a vertical slide (7d), a vertical slide plate (7e), a tilting mechanism (7f) and two plug posts (7a), wherein the two plug posts (7a) are fixedly mounted on the bottom of the horizontal slide (7b), the two horizontal slides (7b) are respectively inserted into the plug holes of the moving block 1 (4a2) and the moving block 2 (4a3), the horizontal slide (7b) slides with the horizontal guide plate (7c), the horizontal guide plate (7c) is fixedly mounted on the bottom of the vertical slide (7d), the vertical slide plate (7e) is fixedly mounted on the wall, the vertical slide (7d) is slidably connected to the vertical slide plate (7e), the tilting mechanism (7f) is fixedly mounted on the vertical slide plate (7e), and the tilting mechanism (7f) is used for the power-off extraction mechanism (8) to pull the plug posts (7a) upwards.

5. A movable buffer for an elevator as claimed in claim 4, characterized in that: The tilting mechanism (7f) comprises a connecting plate 1 (7f1), a sliding column 2 (7f2), an articulated seat (7f3) and a rotating rod (7f4); the connecting plate 1 (7f1) is fixedly mounted on the top of the vertical sliding seat (7d); the sliding column 2 (7f2) is fixedly mounted on the connecting plate 1 (7f1); the articulated seat (7f3) is fixedly mounted on the vertical sliding plate (7e); the rotating rod (7f4) is rotatably connected to the articulated seat (7f3); a sliding groove (7f5) is provided on the rotating rod (7f4); the sliding column 2 (7f2) is inserted into the sliding groove (7f5); and the rotating rod (7f4) is drivingly connected to the power-off extraction mechanism (8).

6. A movable buffer for an elevator as claimed in claim 5, characterized in that: The power-off extraction mechanism (8) comprises a guide column (8b), a guide block (8c), a second connecting plate (8e), a first contact spring (8f), two electromagnets (8a) and two third sliding columns (8d), wherein the guide column (8b) is fixedly mounted on the top of the side plate (5a), the guide block (8c) is vertically slidably mounted on the guide column (8b), the third sliding column (8d) is horizontally slidably mounted on the guide block (8c), and the second connecting plate (8e) is fixedly mounted on the At one end of the two sliding columns three (8d), the electromagnet (8a) is fixedly mounted on the wall, the two electromagnets (8a) are respectively attracted to the two sliding columns three (8d), the resistance spring one (8f) is used to apply an elastic force to the connecting plate two (8e) away from the guide block (8c), one end of the rotating rod (7f4) is located below the guide block (8c), and a strong magnet (8h) is arranged on the top of the guide column (8b), and the strong magnet (8h) is attracted to the guide block (8c).

7. A movable buffer for an elevator as claimed in claim 6, characterized in that: A retaining ring 1 (8s) is fixedly arranged on the sliding column 3 (8d).

8. A movable buffer for an elevator as claimed in claim 7, characterized in that: The elastic pushing mechanism (9) comprises a push column (9a), a guide slide plate (9b), a second contact spring (9c) and a second retaining ring (9d); the guide slide plate (9b) is fixedly mounted on the side plate (5a); the push column (9a) is slidably connected to the guide slide plate (9b); one end of the push column (9a) is in contact with the hook plate (4b); the second retaining ring (9d) is fixedly mounted on the push column (9a); and the second contact spring (9c) is used to apply an elastic force to the second retaining ring (9d) to keep it away from the guide slide plate (9b).

Images