Spring buffer device for elevator

Abstract

The utility model discloses a spring buffer device for elevator, which comprises a mounting frame, a buffer plate is arranged on the top of the mounting frame in a lifting way, the center of the top of the mounting frame is connected with the buffer plate and is provided with a buffer component, and a car firstly contacts with a buffer part of a buffer pad and is primarily buffered by the buffer part of the buffer pad; and then a buffer plate is extruded to compress a buffer spring I and a buffer spring II, and a guide shaft is used for positioning and guiding along a guide hole, so that the buffer spring I and the buffer spring II are used for buffering the lift car again, and the buffer effect on the lift car is further improved. And the lock head is clamped and matched with the lock hole of the mounting part in the buffer part, so that the buffer pad can be conveniently locked or released to realize quick release and replacement, the influence on the buffer effect of the lift car after the buffer pad is aged or damaged under the long-time influence of external environment factors is avoided, and the practicability of the equipment is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of elevator buffer equipment, especially to a spring buffer device for elevator. BACKGROUND

[0002] With the development of urbanization, elevators are gradually popularized and used in the field of construction, however, the elevator buffer is the key to ensure the stable operation of the elevator, and is usually installed at the bottom of the shaft, when the elevator normally operates, the elevator buffer can reduce the vibration of the car, thereby improving the stability thereof, when the elevator abnormally descends or the car sharply falls due to debugging problems, the elevator buffer can avoid the car directly colliding with the bottom wall of the shaft, thereby reducing the influence on the personnel and / or objects inside the car, at present, the traditional spring buffer for elevator is inconvenient to disassemble during use, and under the influence of external environmental factors such as temperature and humidity for a long time, the service life of the parts thereof is easily shortened, thereby affecting the buffering effect on the car, and the practicality is poor. SUMMARY

[0003] The utility model aims at providing a spring buffer device for elevator to solve the problems of the traditional spring buffer for elevator in the prior art, such as inconvenient disassembly, inconvenient replacement of parts when the parts are damaged or aged, weakened buffering effect on the car, poor practicality and the like.

[0004] To achieve the above object, the utility model provides the following technical scheme: a spring buffer device for elevator, comprising a mounting frame, a buffer plate is arranged on the top of the mounting frame and can be lifted, a buffer assembly is arranged on the center of the top of the mounting frame and connected with the buffer plate, a guide assembly is arranged on the four corners of the top of the mounting frame and connected with the buffer plate, a buffer pad is detachably arranged on the top of the buffer plate, and a lock catch assembly for locking or releasing the buffer pad is arranged in the middle of the buffer plate.

[0005] Preferably, bosses are symmetrically arranged on the two sides of the top of the mounting frame, guide holes are symmetrically arranged through the bosses, and a plurality of waist-shaped holes are arranged on the bottom of the mounting frame.

[0006] Preferably, the buffer assembly comprises a mounting groove one arranged in the center of the top of the mounting frame, a mounting groove two corresponding to the mounting groove one is arranged in the center of the bottom of the buffer plate, and a buffer spring one is arranged in the middle of the mounting groove one and the mounting groove two.

[0007] Preferably, the guide assembly comprises threaded holes arranged in the four corners of the bottom of the buffer plate, guide shafts are arranged through the guide holes and connected with the same side threaded holes, buffer springs two are sleeved on the outer circular wall of the guide shafts, and limit nuts are arranged on the bottom of the guide shafts.

[0008] As preferred, the lock catch assembly comprises a clamping groove symmetrically opened on the top of the buffer plate, a driving cavity is arranged on one side of the clamping groove, a plurality of through holes are arranged in the driving cavity, a lock head is slidably arranged in the through hole, and a push rod is jointly connected to the lock head on the same side.

[0009] As preferred, the driving cavity is provided with a baffle on the top of the driving cavity.

[0010] As preferred, the buffer pad comprises a buffer portion on the top and a mounting portion symmetrically arranged on the bottom, a plurality of lock holes are arranged on the side wall of the mounting portion, and a handle portion is arranged on one end of the mounting portion.

[0011] The utility model discloses beneficial effects:

[0012] 1. When the elevator is not normally descended, the car first contacts the buffer portion of the buffer pad, and the buffer portion of the buffer pad is preliminarily buffered to avoid damage to the surface of the car caused by collision, then the buffer plate is squeezed to compress the buffer spring one and the buffer spring two, and the buffer spring one and the buffer spring two are positioned along the guide hole through the guide shaft, and then the car is buffered again through the buffer spring one and the buffer spring two, the buffering effect of the car is further improved, the lock head and the lock hole of the mounting portion in the buffer portion are matched through clamping, and then the buffer pad is conveniently locked or released to realize quick disassembly and replacement, and the buffering effect of the car is affected after the buffer pad is aged or damaged due to the influence of external environmental factors for a long time, and then the practicability of the equipment is improved.

[0013] 2. One end of the buffer spring one is clamped to the inside of the mounting groove one, and the other end is clamped to the inside of the mounting groove two, so that the buffer spring one is prevented from falling off between the mounting frame and the buffer frame during the buffering process, and the stability of the equipment is improved, and when the buffer spring one is aged or damaged due to the influence of external environmental factors for a long time, the buffer spring one can also be quickly disassembled and replaced through the limiting nut at the end of the guide shaft.

[0014] 3. The mounting portion of the buffer pad is inserted into the clamping groove, so that the mounting portion is adapted to press the lock head along the clamping groove, when the mounting portion is completely inserted into the clamping groove, the lock head is matched with the corresponding lock hole, so that the mounting portion is locked in the middle of the buffer frame, when the lock head is pulled out of the lock hole by rotating the push rod, the mounting portion can be taken out of the clamping groove by pulling the handle portion, so that the buffer pad can be conveniently disassembled and replaced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a first perspective three-dimensional structure schematic view of the embodiment of the utility model;

[0016] Figure 2 It is a second perspective three-dimensional structure schematic view of the embodiment of the utility model;

[0017] Figure 3 It is the three-dimensional structure schematic view of the buffer plate in the utility model embodiment.

[0018] Figure 4 It is the three-dimensional structure schematic view of the buffer pad in the utility model embodiment.

[0019] In the drawing: 1, mounting frame; 101, boss; 102, guide hole; 103, waist type hole; 2, buffer plate; 3, buffer assembly; 31, installation groove one; 32, installation groove two; 33, buffer spring one; 4, guide assembly; 41, threaded hole; 42, guide shaft; 43, buffer spring two; 44, limit nut; 5, buffer pad; 51, buffer part; 52, mounting part; 53, lock hole; 54, handle part; 6, lock catch assembly; 61, clamping groove; 62, driving cavity; 63, through hole; 64, lock head; 65, lever; 66, return spring; 7, baffle. DETAILED DESCRIPTION

[0020] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1 to 4 The utility model provides a spring buffer device for elevator, including mounting frame 1, the top of mounting frame 1 is lifted and is equipped with buffer plate 2, the top center of mounting frame 1 is equipped with buffer assembly 3 with buffer plate 2 is connected, the top four corners of mounting frame 1 is equipped with guide assembly 4 with buffer plate 2 is connected, the top of buffer plate 2 is detachably equipped with buffer pad 5, the middle part of buffer plate 2 is equipped with the lock catch assembly 6 for locking or releasing buffer pad 5, when elevator is not normally descended, or due to debugging problem, causes car to fall sharply, car first contacts buffer pad 5, and preliminary buffering is carried out through buffer pad 5, avoids the damage caused to car surface by collision, then extrudes buffer plate 2 and compresses buffer spring one 33 in buffer assembly 3 and buffer spring two 43 in guide assembly 4, and is positioned and guided along guide hole 102 through guide shaft 42, and then buffer spring one 33 and buffer spring two 43 buffer car again, further improve the buffering effect of car, through lock catch assembly 6, it is convenient to quickly detach and replace buffer pad 5, avoids the influence on the buffering effect of car after buffer pad 5 is aged or damaged due to the influence of external environmental factors for a long time, and then improves the practicability of equipment.

[0022] As Figure 1As shown, specifically, the mounting frame 1 top two sides are symmetrically provided with bosses 101, the guide hole 102 is symmetrically provided through the bosses 101, the mounting frame 1 bottom is provided with a plurality of waist-shaped holes 103, the guide hole 102 is symmetrically arranged on both sides of the boss 101, and the buffer plate 2 is positioned and guided along the guide hole 102 through the guide shaft 42, so that the buffer spring one 33 and the buffer spring two 43 are prevented from being deformed and deviated during compression or release, and the buffering effect on the car is further improved.

[0023] As shown, Figure 2 The buffer assembly 3 includes the mounting groove one 31 arranged at the top center of the mounting frame 1, the mounting groove two 32 arranged at the bottom center of the buffer plate 2 corresponding to the mounting groove one 31, and the buffer spring one 33 arranged in the middle of the mounting groove one 31 and the mounting groove two 32. One end of the buffer spring one 33 is clamped to the inside of the mounting groove one 31, and the other end is clamped to the inside of the mounting groove two 32, so that the buffer spring one 33 is prevented from falling off between the mounting frame 1 and the buffer frame during the buffering process, the stability of the equipment is improved, and when the buffer spring one 33 is aged or damaged due to long-term influence of external environmental factors, the buffer spring one 33 can be quickly disassembled and replaced by disassembling the limiting nut 44 at the end of the guide shaft 42.

[0024] Specifically, the guide assembly 4 includes the threaded hole 41 arranged at the bottom four corners of the buffer plate 2, the guide shaft 42 connected with the same side threaded hole 41 through the guide hole 102, the buffer spring two 43 sleeved on the outer circular wall of the guide shaft 42, and the limiting nut 44 connected at the bottom of the guide shaft 42. One end of the guide shaft 42 is threadedly connected with the threaded hole 41, four guide shafts 42 are installed at the bottom four corners of the buffer plate 2, the buffer spring two 43 is sleeved on the outer circular wall of the guide shaft 42, and the guide limiting nut 44 is passed through the guide hole 102, so that the buffer plate 2 is positioned and guided during the buffering process, the buffer spring one 33 and the buffer spring two 43 are prevented from being deformed and deviated, the buffering effect of the whole equipment on the car is improved, and the buffer plate 2 and the mounting frame 1 are disassembled by disassembling the limiting nut 44, so that the workers can maintain and maintain the equipment.

[0025] As shown, Figure 3As shown, specifically, the lock assembly 6 includes a snap-in groove 61 symmetrically opened on the top of the buffer plate 2, and a driving cavity 62 is provided on one side of the snap-in groove 61. The driving cavity 62 is connected to the snap-in groove 61 and has several through holes 63. A lock head 64 is slidingly provided in the through hole 63, and the lock heads 64 on the same side are commonly connected with a lever 65. The side wall of the driving cavity 62 is fixedly connected to the lever 65 on the same side through a return spring 66. By moving the levers 65 on both sides and then compressing the return spring 66 on the same side, the lock head 64 is guided along the through hole 63 and disengaged from the corresponding lock hole 53, thereby quickly realizing the unlocking of the mounting parts 52 in the buffer pads 5 on both sides, and making it convenient to remove and replace the buffer pads 5 from the middle of the buffer plate 2.

[0026] Specifically, baffles 7 are provided on the tops of the driving cavities 62 on both sides. By installing or removing the baffles 7, it is convenient to protect the driving cavities 62 on both sides or to maintain or service the components in the driving cavities 62.

[0027] like Figure 4 As shown, specifically, the buffer pad 5 includes a buffer portion 51 at the top and a mounting portion 52 symmetrically arranged at the bottom. A number of locking holes 53 are opened on the side wall of the mounting portion 52, and a handle portion 54 is provided at one end of the mounting portion 52. By inserting the mounting portion 52 of the buffer pad 5 into the snap-fitting groove 61, the mounting portion 52 adaptively presses the lock head 64 to move along the snap-fitting groove 61. When the mounting portion 52 is fully inserted into the snap-fitting groove 61, the lock head 64 will be plugged into and matched with the corresponding lock hole 53, thereby locking the mounting portion 52 in the middle of the buffer frame. When the lever 65 is toggled to make the lock head 64 disengage from the lock hole 53, the mounting portion 52 can be easily removed from the snap-fitting groove 61 by pulling the handle portion 54, thereby conveniently realizing the quick release and replacement of the buffer pad 5.

[0028] The working principle of the present invention is as follows: during use, when the elevator descends abnormally, or the car drops sharply due to debugging problems, the car first contacts the buffer portion 51 of the buffer pad 5, and the buffer portion 51 of the buffer pad 5 is used for preliminary buffering to avoid damage to the car surface caused by collision, and then the buffer plate 2 is squeezed to compress the buffer spring 1 33 and the buffer spring 2 43, and the guide shaft 42 is used to position and guide along the guide hole 102, and then the car is buffered again by the buffer spring 1 33 and the buffer spring 2 43, so as to further improve the buffering effect of the car, and the lock head 64 is engaged with the lock hole 53 of the mounting portion 52 in the buffer portion 51, so as to facilitate the locking or releasing of the buffer pad 5 to realize quick disassembly and replacement, so as to avoid the buffer pad 5 from being affected by aging or damage due to long-term influence of external environmental factors, which affects the buffering effect of the car, thereby improving the practicality of the equipment.

[0029] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A spring buffer device for an elevator, comprising a mounting frame (1), characterized in that: A buffer plate (2) is provided on the top of the mounting frame (1) for lifting, a buffer assembly (3) is provided at the center of the top of the mounting frame (1) connected to the buffer plate (2), a guide assembly (4) is provided at the four corners of the top of the mounting frame (1) connected to the buffer plate (2), a detachable buffer pad (5) is provided on the top of the buffer plate (2), and a lock assembly (6) for locking or releasing the buffer pad (5) is provided in the middle of the buffer plate (2).

2. The spring buffer device for an elevator according to claim 1, characterized in that: Bosses (101) are symmetrically provided on both sides of the top of the mounting frame (1), guide holes (102) are symmetrically provided through the bosses (101), and a plurality of waist-shaped holes (103) are provided at the bottom of the mounting frame (1).

3. The spring buffer device for an elevator according to claim 1, characterized in that: The buffer assembly (3) includes a mounting groove 1 (31) provided at the top center of the mounting frame (1), a mounting groove 2 (32) provided at the bottom center of the buffer plate (2) corresponding to the mounting groove 1 (31), and a buffer spring 1 (33) installed in the middle of the mounting groove 1 (31) and the mounting groove 2 (32).

4. The spring buffer device for an elevator according to claim 2, characterized in that: The guide assembly (4) includes threaded holes (41) opened at the four corners of the bottom of the buffer plate (2), a guide shaft (42) is provided through the guide hole (102) and connected to the threaded hole (41) on the same side, a buffer spring (43) is provided on the outer wall of the guide shaft (42), and a limit nut (44) is provided on the bottom of the guide shaft (42).

5. The spring buffer device for an elevator according to claim 1, characterized in that: The lock assembly (6) includes a snap-fitting groove (61) symmetrically opened on the top of the buffer plate (2), a driving cavity (62) is provided on one side of the snap-fitting groove (61), a plurality of through holes (63) are opened in the driving cavity (62) connected to the snap-fitting groove (61), a locking head (64) is slidably provided in the through hole (63), and the locking heads (64) on the same side are commonly connected to a shifting rod (65), and a side wall of the driving cavity (62) is fixedly connected to the shifting rod (65) on the same side via a return spring (66).

6. The spring buffer device for an elevator according to claim 5, characterized in that: Baffles (7) are provided on the tops of the drive cavities (62) on both sides.

7. The spring buffer device for an elevator according to claim 1, characterized in that: The buffer pad (5) comprises a buffer portion (51) at the top and a symmetrically arranged mounting portion (52) at the bottom. A plurality of lock holes (53) are provided on the side wall of the mounting portion (52). A handle portion (54) is provided at one end of the mounting portion (52).

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