Efficient buffer for elevator safety and working method thereof

Abstract

The application discloses an elevator safety high-efficiency buffer and a working method thereof, and relates to the technical field of elevator safety, which comprises a bottom pier, a movable pier, a polyurethane buffer and a buffer hydraulic rod, a position control structure is installed on the bottom pier, a polyurethane buffer is fixed on the upper surface of the first base, a limiting structure is arranged on the outer side of the polyurethane buffer, a second base is arranged on the inner side of the first base, a buffer hydraulic rod is fixed on the upper surface of the second base, an angle deviation monitoring structure is installed in the inside of the receiving plate, and a safety switch triggering structure is arranged on the right side of the buffer hydraulic rod. The elevator safety high-efficiency buffer and the working method thereof ensure that the center deviation between the buffer and the car is kept within 0-2°, better buffer the car, avoid damage to the buffer when the car falls, avoid the deviation of the polyurethane buffer, ensure the buffering effect, can trigger the safety switch in time, and facilitate the opening and closing of the safety switch.

Description

TECHNICAL FIELD

[0001] The application relates to the field of elevator safety, and particularly relates to an efficient buffer for elevator safety and a working method thereof. BACKGROUND

[0002] The elevator buffer is one of safety components of an elevator pit, and the elevator buffer is divided into a spring buffer, a polyurethane buffer and a hydraulic buffer, and is the last insurance of the elevator. When other safety devices of the elevator cannot stop the out-of-control car, the buffer is used to absorb kinetic energy, and the car and passengers are protected.

[0003] A hydraulic buffer for elevator safety braking and a buffering method thereof are disclosed in Chinese Patent Publication No. CN118992755A, which comprises a base, a support cylinder welded on the upper end of the base, a buffer cylinder inserted and installed in the middle part of the support cylinder, an installation mechanism, the installation mechanism is symmetrically arranged at the left and right ends of the support cylinder, and the installation mechanism is used for installing and positioning between the support cylinder and the buffer cylinder, and a heat dissipation mechanism, the heat dissipation mechanism is symmetrically arranged on the left and right sides of the outer cylinder. The hydraulic buffer for elevator safety braking and the buffering method thereof can stably install, disassemble and maintain the buffer, can assist in supporting and reinforcing the entire buffer, further improves the stability of the buffer in the use process, and in combination with the arrangement of the heat dissipation mechanism, can more efficiently dissipate the heat generated by the buffer in the use process, protects the buffer, and prolongs the actual service life of the buffer.

[0004] However, the existing efficient buffer for elevator safety has the following problems:

[0005] 1. When the load eccentrically impacts the buffer, the buffer will be damaged and the buffering effect will be affected. During use, it is necessary to ensure that the buffer is aligned with the center of the car. However, due to the long-term use of one side of the car to transport heavy objects or other reasons, the car will be offset, and it cannot be ensured that the deviation between the buffer and the car is within a safe range, the car cannot be better buffered, and damage to the buffer when the car falls cannot be avoided.

[0006] 2. When the polyurethane buffer and the buffer hydraulic rod are pressed, the polyurethane buffer will be offset, affecting the buffering effect.

[0007] 3. During the buffering process, it is not convenient to open and close the safety switch. The authorized announcement No. CN220950717U discloses an elevator oil pressure buffer switch triggering device and a buffer, which avoids the problem that the triggering rod of the existing buffer switch triggering device is easily twisted and deformed and then fails. However, after the buffer is reset, it is not convenient to disconnect the safety switch. Therefore, the efficient buffer for elevator safety and the working method thereof are proposed to solve the above-mentioned problems. SUMMARY

[0008] The present application aims to provide an elevator safety high efficiency buffer and its working method, to solve the above-mentioned prior art in the background, when the load eccentric impact buffer, will damage the buffer and affect the buffering effect, when using need to ensure that the buffer and car center alignment, but due to long-term use of the car side conveying heavy, or other reasons, will lead to car deviation, can not ensure that the buffer and car deviation within the safe range, can not better buffer car, can not avoid the damage to the buffer when the car falls, in the down polyurethane buffer and buffer hydraulic rod, polyurethane buffer will occur deviation, affect the buffering effect, in the buffering process, the problem of inconvenient opening and closing safety switch.

[0009] To achieve the above object, the present application provides the following technical scheme: an elevator safety high efficiency buffer, comprising a bottom pier, a movable pier, a polyurethane buffer and a buffer hydraulic rod:

[0010] The position control structure is installed on the bottom pier, and the position control structure comprises a movable cavity, a control hydraulic rod, a top plate, a rectangular block, a movable pier, a rectangular cavity, a reinforcing hydraulic rod and an extrusion block, the inside of the bottom pier is provided with a movable cavity, and the inside of the movable cavity is fixedly provided with a control hydraulic rod, the output end of the control hydraulic rod is fixedly provided with a top plate, and the inside of the top plate is provided with a rectangular block, the upper surface of the rectangular block is fixedly provided with a movable pier, and the outer end of the movable pier is provided with a rectangular cavity, the top end of the vertical column fixedly provided on the upper surface of the bottom pier is transversely fixedly provided with a reinforcing hydraulic rod, and the output end of the reinforcing hydraulic rod is fixedly provided with an extrusion block;

[0011] The upper side of the movable pier is fixedly provided with a first base through a screw, the upper surface of the first base is fixedly provided with a polyurethane buffer, the outside of the polyurethane buffer is provided with a limiting structure, the limiting structure comprises a first limiting groove, a second limiting groove and a limiting rod, the inside of the movable pier is provided with a first limiting groove, the inside of the first base is provided with a second limiting groove, and the outside of the polyurethane buffer is provided with a limiting rod;

[0012] The inner side of the first base is provided with a second base, and the upper surface of the second base is fixed with a buffer hydraulic rod, the second base is fixedly connected with the movable pier through screws, the top outer side of the buffer hydraulic rod is provided with a spring, and the upper surface of the buffer hydraulic rod is fixed with a receiving plate, the inside of the receiving plate is provided with an angle deviation monitoring structure, the right side of the buffer hydraulic rod is provided with a safety switch triggering structure, and the safety switch triggering structure comprises a limiting block, a vertical rod, a gear ring, a screw rod, an L-shaped rod and a mounting plate.

[0013] The above technical scheme ensures that the center deviation of the buffer and the car is kept within 0-2°, better buffers the car, avoids damage to the buffer when the car falls, avoids polyurethane buffer deviation, ensures the buffering effect, can trigger the safety switch in time, and facilitates opening and closing of the safety switch.

[0014] Preferably, the control hydraulic rod is mounted on the front, rear, left and right inner walls of the movable cavity.

[0015] Preferably, the extrusion block is located on the inner side of the rectangular cavity, and the rectangular cavity is equally angularly arranged on the outer end of the movable pier.

[0016] Preferably, the upper surface of the limiting rod is flush with the upper surface of the receiving plate, and the top end of the limiting rod is clamped into the top end of the polyurethane buffer.

[0017] Preferably, the L-shaped rod, the mounting plate and the safety switch are fixedly connected with the buffer hydraulic rod.

[0018] Preferably, the bottom end of the vertical rod is in a sawtooth structure, and the bottom end of the vertical rod is meshingly connected with the gear ring.

[0019] Preferably, the gear ring and the mounting plate are rotatably connected.

[0020] A working method of an efficient buffer for elevator safety, comprising the following steps:

[0021] Step one: detecting the position of the middle part of the car through the angle deviation monitoring structure, when the car deviates, the control panel starts the position control structure, adjusts the position of the rectangular block, the movable pier, the polyurethane buffer and the buffer hydraulic rod, so that the center deviation of the polyurethane buffer and the buffer hydraulic rod and the car center is controlled within 0-2°;

[0022] Step two: when the car falls, the car presses the polyurethane buffer, the buffer hydraulic rod and the spring, the kinetic energy of the falling car is absorbed by the polyurethane buffer, the buffer hydraulic rod and the spring, and when the polyurethane buffer is compressed, the position of the polyurethane buffer is limited by the limiting structure to avoid the deflection of the polyurethane buffer;

[0023] Step three: when the plunger of the buffer hydraulic rod moves down, the safety switch trigger structure triggers the safety switch, the limiting block moves down, the gear ring rotates, the screw moves forward to start the safety switch, and the power of the elevator is turned off;

[0024] Step four: when the limiting block moves up to the initial position, the rotation of the gear ring drives the screw to move backward to the initial position, and the power of the elevator is turned on.

[0025] Compared with the prior art, the beneficial effects of the elevator safety high-efficiency buffer and its working method are: the center deviation of the buffer and the car is kept within 0-2°, the car is better buffered, and the damage to the buffer when the car falls is avoided, the polyurethane buffer is prevented from deviating, the buffering effect is ensured, the safety switch can be triggered in time, and the safety switch is convenient to open and close;

[0026] 1. The angle deviation monitoring structure detects the position of the middle part of the car, and when the car deviates, the position of the polyurethane buffer and the buffer hydraulic rod is adjusted by the position control structure composed of the movable cavity, the control hydraulic rod, the top plate, the rectangular block, the movable pier, the rectangular cavity, the reinforcing hydraulic rod and the extrusion block, so that the center of the polyurethane buffer and the buffer hydraulic rod deviates from the center of the car within 0-2°;

[0027] 2. The polyurethane buffer, the buffer hydraulic rod and the spring are combined to buffer the falling elevator car, and during the compression of the polyurethane buffer, the polyurethane buffer is limited by the limiting rod to prevent the polyurethane buffer from deviating and ensure the buffering effect;

[0028] 3. When the plunger of the buffer hydraulic rod moves down, the safety switch trigger structure triggers the safety switch, the limiting block moves down, the gear ring rotates, the screw moves forward to start the safety switch, and the power of the elevator main machine is turned off, and after the vertical rod is reset, the safety switch is closed and the power of the elevator main machine is turned on. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a front axle side structure schematic view of the present application;

[0030] Figure 2 It is an axle side cut structure schematic view of the present application;

[0031] Figure 3 It is an axle side cut structure schematic view of the present application; Figure 2 It is an enlarged structure schematic view of A in the present application;

[0032] Figure 4 Split structure diagram of safety switch trigger structure of the present application;

[0033] Figure 5 Bottom pier shaft side structure diagram of the present application;

[0034] Figure 6 Limiting rod and movable pier connecting structure diagram of the present application;

[0035] Figure 7 First shaft side structure diagram of safety switch trigger structure of the present application;

[0036] Figure 8 Second shaft side structure diagram of safety switch trigger structure of the present application;

[0037] Figure 9 Polyurethane bumper shaft side structure diagram of the present application;

[0038] Figure 10 First base shaft side structure diagram of the present application;

[0039] Figure 11 Back side shaft side structure diagram of the present application.

[0040] In the figure: 1, bottom pier; 2, movable cavity; 3, control hydraulic rod; 4, top plate; 5, rectangular block; 6, movable pier; 7, rectangular cavity; 8, reinforced hydraulic rod; 9, extrusion block; 10, first limiting groove; 11, first base; 12, polyurethane bumper; 13, second limiting groove; 14, limiting rod; 15, second base; 16, buffering hydraulic rod; 17, spring; 18, receiving plate; 19, limiting block; 20, vertical rod; 21, gear ring; 22, screw rod; 23, L-shaped rod; 24, mounting plate; 25, safety switch; 26, control panel; 27, angle deviation monitoring structure. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0042] Embodiment one: please refer to Figure 1 , Figure 2 , Figure 5 and Figure 11, the existing elevator safety high -efficient buffer, when the load eccentric impact buffer, will damage the buffer and affect the buffering effect, use need to ensure that the buffer and the center of the car alignment, but due to the car long time use one side to transport heavy, or other reasons, will lead to car deviation, can not ensure that the buffer and the car deviation in the safe range, can not better buffering car, can not avoid the damage to the buffer when the car falls, in order to solve this technical problem, the embodiment discloses the following technical content;

[0043] An elevator safety high -efficient buffer, the position control structure is installed on the bottom pier 1, the position control structure includes movable cavity 2, control hydraulic rod 3, top plate 4, rectangular block 5, movable pier 6, rectangular cavity 7, reinforcing hydraulic rod 8 and extrusion block 9, the inside of bottom pier 1 is provided with movable cavity 2, and the inside of movable cavity 2 is fixed with control hydraulic rod 3, the output end of control hydraulic rod 3 is fixed with top plate 4, and the inside of top plate 4 is provided with rectangular block 5, the upper surface of rectangular block 5 is fixed with movable pier 6, and the outer end of movable pier 6 is provided with rectangular cavity 7, the top end of the vertical column fixed on the upper surface of bottom pier 1 is transversely fixed with reinforcing hydraulic rod 8, and the output end of reinforcing hydraulic rod 8 is fixed with extrusion block 9;

[0044] The angle deviation monitoring structure 27 in the inside of receiving plate 18 monitors the position of the middle part of car in real time, the position of the middle part of car is detected through angle deviation monitoring structure 27, and the angle deviation monitoring structure 27 can be a laser displacement sensor;

[0045] When the car deviates, angle deviation monitoring structure 27 transmits a signal to control panel 26, control panel 26 starts control hydraulic rod 3 and reinforcing hydraulic rod 8 in the inside of position control structure, control hydraulic rod 3 and reinforcing hydraulic rod 8 control the position of rectangular block 5, when rectangular block 5 needs to move left and right, the left and right control hydraulic rod 3 drives top plate 4 to move left and right, thereby pushing rectangular block 5 to move left and right, since the front and rear top plates 4 are only attached to rectangular block 5, the movement of rectangular block 5 is not affected, the left and right reinforcing hydraulic rod 8 drives extrusion block 9 to move left and right, the front and rear extrusion block 9 moves in the inside of rectangular cavity 7, movable pier 6 moves left and right, the position of polyurethane buffer 12 and buffer hydraulic rod 16 on movable pier 6 is adjusted, so that the deviation between polyurethane buffer 12 and buffer hydraulic rod 16 and the center of the car is kept within 0-2°;

[0046] Embodiment two: the existing elevator safety high -efficient buffer, when the polyurethane buffer 12 and the buffer hydraulic rod 16 are pressed down, the polyurethane buffer 12 will deviate, affect the buffering effect, in order to solve this technical problem, the embodiment discloses the following technical content, please refer to Figure 1 、 Figure 2 、 Figure 6 、 Figure 9 、 Figure 10 andFigure 11 ;

[0047] The outer side of the polyurethane buffer 12 is provided with a limiting structure, the limiting structure comprises a first limiting groove 10, a second limiting groove 13 and a limiting rod 14, the inside of the movable pier 6 is provided with the first limiting groove 10, the inside of the first base 11 is provided with the second limiting groove 13, and the outer side of the polyurethane buffer 12 is provided with the limiting rod 14;

[0048] When the car falls downward, the car presses the polyurethane buffer 12, the buffer hydraulic rod 16 and the spring 17, the kinetic energy of the car falling downward is absorbed through the polyurethane buffer 12, the buffer hydraulic rod 16 and the spring 17, the position of the polyurethane buffer 12 is limited through the limiting structure when the polyurethane buffer 12 is compressed, the polyurethane buffer 12 is prevented from being deflected, the limiting rod 14 moves downward in the first limiting groove 10 and the second limiting groove 13 during the downward movement of the polyurethane buffer 12, the polyurethane buffer 12 is limited through the limiting rod 14, the polyurethane buffer 12 is prevented from being deviated, and the buffering effect is ensured;

[0049] Embodiment three: the existing high-efficiency buffer for elevator safety, the safety switch is inconvenient to open and close during the buffering process, in order to solve the technical problem, the embodiment discloses the following technical content, please refer to Figures 1-4 、 Figure 7 、 Figure 8 and Figure 11 ;

[0050] The inner side of the first base 11 is provided with the second base 15, the upper surface of the second base 15 is fixedly connected with the buffer hydraulic rod 16, the second base 15 is fixedly connected with the movable pier 6 through screws, the top outer side of the buffer hydraulic rod 16 is provided with the spring 17, the upper surface of the buffer hydraulic rod 16 is fixedly connected with the receiving plate 18, the inside of the receiving plate 18 is installed with the angle deviation monitoring structure 27, the right side of the buffer hydraulic rod 16 is provided with the safety switch triggering structure, the safety switch triggering structure comprises a limiting block 19, a vertical rod 20, a gear ring 21, a screw rod 22, an L-shaped rod 23 and a mounting plate 24, the right side of the buffer hydraulic rod 16 is fixedly connected with the limiting block 19, the inside of the limiting block 19 is penetrated through the vertical rod 20, the inner side of the vertical rod 20 is provided with the gear ring 21, the inside of the gear ring 21 is threadedly connected with the screw rod 22, the inside of the screw rod 22 is penetrated through the L-shaped rod 23, the front and rear ends of the gear ring 21 are provided with the mounting plate 24, and the front side of the gear ring 21 is provided with the safety switch 25;

[0051] When the plunger of the buffer hydraulic rod 16 moves downward, the limiting block 19 moves downward, the gear ring 21 connected with the limiting block 19 rotates clockwise, the screw rod 22 moves forward to start the safety switch 25, and the power supply of the elevator is disconnected, when the limiting block 19 moves upward to the initial position, the gear ring 21 rotates counterclockwise to drive the screw rod 22 to move backward to the initial position, the safety switch 25 is closed, and the power supply of the elevator is turned on.

[0052] The above completes the series of operations of the high-efficiency buffer for elevator safety and the working method thereof, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0053] The standard parts used in the application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0054] Although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or replace some of the technical features equivalently, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. An efficient buffer for elevator safety, comprising a bottom pier (1), a movable pier (6), a polyurethane buffer (12) and a buffer hydraulic rod (16), characterized in that: a position control structure is installed on the bottom pier (1), the position control structure comprising a movable cavity (2), a control hydraulic rod (3), a top plate (4), a rectangular block (5), a movable pier (6), a rectangular cavity (7), a reinforcing hydraulic rod (8) and a extrusion block (9), the inside of the bottom pier (1) is provided with a movable cavity (2), and the inside of the movable cavity (2) is fixedly provided with a control hydraulic rod (3), the output end of the control hydraulic rod (3) is fixedly provided with a top plate (4), and the inner side of the top plate (4) is provided with a rectangular block (5), the upper surface of the rectangular block (5) is fixedly provided with a movable pier (6), and the outer end of the movable pier (6) is provided with a rectangular cavity (7), the top end of the vertical column fixedly provided on the upper surface of the bottom pier (1) is transversely fixedly provided with a reinforcing hydraulic rod (8), and the output end of the reinforcing hydraulic rod (8) is fixedly provided with an extrusion block (9); a first base (11) is fixedly provided on the upper side of the movable pier (6) through screws, the upper surface of the first base (11) is fixedly provided with a polyurethane buffer (12), the outer side of the polyurethane buffer (12) is provided with a limiting structure, the limiting structure comprising a first limiting groove (10), a second limiting groove (13) and a limiting rod (14), the inside of the movable pier (6) is provided with a first limiting groove (10), the inside of the first base (11) is provided with a second limiting groove (13), and the outer side of the polyurethane buffer (12) is provided with a limiting rod (14). The inner side of the first base (11) is provided with a second base (15), and the upper surface of the second base (15) is fixed with a buffer hydraulic rod (16), the second base (15) is fixedly connected with the movable pier (6) through screws, the top outer side of the buffer hydraulic rod (16) is provided with a spring (17), and the upper surface of the buffer hydraulic rod (16) is fixed with a receiving plate (18), the inside of the receiving plate (18) is provided with an angle deviation monitoring structure (27), the right side of the buffer hydraulic rod (16) is provided with a safety switch triggering structure, the safety switch triggering structure comprises a limiting block (19), a vertical rod (20), a gear ring (21), a screw rod (22), an L-shaped rod (23) and a mounting plate (24), the right side of the buffer hydraulic rod (16) is fixed with the limiting block (19), and the inside of the limiting block (19) penetrates through the vertical rod (20), the inner side of the vertical rod (20) is provided with the gear ring (21), and the inside of the gear ring (21) is threadedly connected with the screw rod (22), the inside of the screw rod (22) penetrates through the L-shaped rod (23), the front and rear ends of the gear ring (21) are provided with the mounting plate (24), the front side of the gear ring (21) is provided with a safety switch (25), the front side of the bottom pier (1) is provided with a control panel (26), the L-shaped rod (23), the mounting plate (24) and the safety switch (25) are fixedly connected with the buffer hydraulic rod (16), the bottom end of the vertical rod (20) is in a sawtooth structure, and the bottom end of the vertical rod (20) is in meshing connection with the gear ring (21), and the gear ring (21) is rotatably connected with the mounting plate (24).

2. An efficient buffer for elevator safety as claimed in claim 1 wherein: The control hydraulic rod (3) is installed on the front, rear, left and right inner walls of the movable cavity (2).

3. The high efficiency buffer for elevator safety according to claim 1, characterized in that: The extrusion block (9) is located on the inner side of the rectangular cavity (7), and the rectangular cavity (7) is equally angularly arranged on the outer end of the movable pier (6).

4. The high efficiency buffer for elevator safety according to claim 1, characterized in that: The upper surface of the limiting rod (14) is flush with the upper surface of the receiving plate (18), and the top end of the limiting rod (14) is clamped into the top end of the polyurethane buffer (12).

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