Elevator with descending buffer mechanism

Abstract

The elevator with the descending buffering mechanism comprises a first installation plate, a second installation plate and a supporting bottom frame, a first movable plate and a second movable plate are installed on the end walls of the two ends of the first installation plate respectively, and a fourth movable plate and a fourth movable plate are installed on the end walls of the two ends of the second installation plate respectively. The first mounting plate and the second mounting plate are connected through a driving mechanism, first buffer assemblies are mounted at the four corners of the upper surface of the supporting bottom frame correspondingly, and the driving mechanism is formed by combining a second buffer assembly, a hydraulic telescopic rod and a third buffer assembly; the second buffering assembly and the third buffering assembly are installed at the two ends of the hydraulic telescopic rod correspondingly. According to the utility model, not only is the impact force generated in the descending process of the lifting platform effectively reduced, but also the impact force borne by the hydraulic telescopic rod is reduced, and the situation that the cylinder of the hydraulic telescopic rod is exploded due to the fact that the instant impact force borne by the hydraulic telescopic rod is too large is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lift, concretely to a lift with descending buffer mechanism. BACKGROUND

[0002] The hydraulic lift is a multifunctional hoisting and unloading mechanical equipment, and the lifting height is from 1m to 30m. The hydraulic lift of special specifications can be made according to the requirements of users. The hydraulic lift can be used for high-altitude operation and maintenance in factories, automatic warehouses, parking lots, municipal, wharfs, construction, decoration, logistics, electric power, traffic, petroleum, chemical industry, hotels, gymnasiums, mines, enterprises and the like. The lifting system of the hydraulic lift is driven by hydraulic pressure, so it is called hydraulic lift.

[0003] Through the search, the patent publication No. CN212127399U discloses a lift with descending buffer function, which comprises a base, a scissor lifting arm, a hydraulic cylinder, a lifting platform and a buffer column. The scissor lifting arm is arranged above the base, the lifting platform is arranged above the scissor lifting arm, and the hydraulic cylinder is arranged on the scissor lifting arm. The scissor lifting arm comprises two outer arm supports and two inner arm supports. Four corners of the base are vertically provided with buffer columns, the top of the buffer column is provided with a rubber pad, and the four sides of the lifting platform are movably connected with flaps. Through the above-mentioned mode, the lift with descending buffer function provided by the utility model is provided with buffer columns at four corners of the base, and rubber pads are arranged on the top of the buffer columns. When the lifting platform descends, it contacts the rubber pads on the buffer columns, thereby greatly reducing the impact force and improving the safety performance.

[0004] The existing lift with descending buffer mechanism has the following problems in actual use. When the staff places a heavy object on the lifting platform, the heavy object not only causes a certain impact force on the lifting platform, but also causes a certain impact force on the hydraulic telescopic rod. When the instantaneous impact force on the hydraulic telescopic rod is large, the hydraulic telescopic rod is prone to burst. UTILITY MODEL CONTENTS

[0005] In view of the defects or deficiencies of the lift, the utility model aims to provide a lift with descending buffer mechanism, which not only effectively reduces the impact force generated during the descending process of the lifting platform, but also reduces the impact force on the hydraulic telescopic rod, thereby avoiding the situation that the hydraulic telescopic rod bursts due to excessive instantaneous impact force.

[0006] To achieve the above-mentioned utility model purposes, the utility model adopts the following technical solutions:

[0007] The utility model provides a lift with descending buffer mechanism, including first installation board, second installation board and support chassis, the end wall of first installation board both ends respectively installs first movable board and second movable board, the end wall of second installation board both ends respectively installs fourth movable board and fourth movable board, it is connected through drive mechanism between first installation board and second installation board, the upper surface four corner places of support chassis all install first buffer assembly,

[0008] The drive mechanism is composed of a second buffer assembly, a hydraulic telescopic rod and a third buffer assembly, the second buffer assembly and the third buffer assembly are respectively installed at both ends of the hydraulic telescopic rod, and the second buffer assembly and the third buffer assembly are respectively connected with the first installation plate and the second installation plate through the movable pin shaft.

[0009] Preferably, one end of the first movable plate and the second movable plate is movably connected through a movable pin shaft first slider, the first slider is arranged on a first sliding rail, the first slider and the first sliding rail are connected through sliding, and the first sliding rail is installed at the front and rear ends of one side of the lower surface of the lifting platform, the other end of the first movable plate and the second movable plate is movably connected with the support chassis through a movable pin shaft.

[0010] Preferably, one end of the third movable plate and the fourth movable plate is movably connected with a second slider through a movable pin shaft, the second slider is arranged on a second sliding rail, the second slider and the second sliding rail are connected through sliding, and the second sliding rail is installed at the front and rear ends of one side of the upper surface of the support chassis, the other end of the third movable plate and the fourth movable plate is movably connected with the lifting platform through a movable pin shaft.

[0011] Preferably, the first buffer assembly, the second buffer assembly and the third buffer assembly are composed of a first connecting plate, a first connecting column, a damping cylinder, a buffer plate, a spring and a second connecting column, an installation groove is formed in the center of the end wall of one end of the second connecting column, the inner wall of one end of the installation groove is connected with the buffer plate through the damping cylinder, and the outer wall of the damping cylinder is sleeved with the spring.

[0012] Preferably, the circumferential outer wall of the buffer plate and the circumferential inner wall of the installation groove are connected through clearance fit, the two sides of the circumferential outer wall of the buffer plate are provided with limit blocks, the other end of the limit block is installed in the limit groove, the outer wall of the limit block and the groove wall of the limit groove are connected through clearance fit, and the limit groove is formed in the two sides of the circumferential inner wall of the installation groove.

[0013] Preferably, one side surface of the buffer plate is connected with the first connecting plate through the first connecting column, and the other end of the second connecting column is provided with a second connecting plate.

[0014] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0015] 1、The utility model discloses a series of structure's cooperation setting of second buffering assembly, third buffering assembly etc. when the staff places the heavier object on the lifting platform, the heavier object can cause certain impact force to the lifting platform and transmits to the hydraulic telescopic pole, second buffering assembly and third buffering assembly can play the role of buffering along the telescopic direction of hydraulic telescopic pole at this moment, and the instantaneous impact force that hydraulic telescopic pole receives is reduced, thereby avoid the situation that the instantaneous impact force that hydraulic telescopic pole receives is too big and causes hydraulic telescopic pole to burst.

[0016] 2、The utility model discloses the setting of first buffering assembly, when the lifting platform contacts first buffering assembly in the process of descending, and first buffering assembly can greatly reduce the impact force caused in the process of descending of lifting platform, and the security performance is improved. ACCURACY

[0017] The description and drawings of the utility model constitute a part of the utility model, and are used to provide further understanding on the utility model, and the illustrative embodiment of the utility model and the explanation thereof are used to explain the utility model, and do not constitute improper limitation to the utility model.

[0018] Figure 1 It is the whole three-dimensional structure schematic of the utility model Figure 1 .

[0019] Figure 2 It is the whole three-dimensional structure schematic of the utility model Figure 2 .

[0020] Figure 3 It is the structure schematic of drive mechanism of the utility model.

[0021] Figure 4 It is the sectional view of first buffering assembly, second buffering assembly and third buffering assembly of the utility model.

[0022] In the drawing:

[0023] 100, lifting platform, 110, first sliding block, 120, first sliding rail,

[0024] 200, first mounting plate, 210, first movable plate, 220, second movable plate,

[0025] 300, drive mechanism, 310, second buffering assembly, 320, hydraulic telescopic pole, 330, third buffering assembly,

[0026] 400, second mounting plate, 410, third movable plate, 420, fourth movable plate,

[0027] 500, first buffer assembly; 510, first connecting plate; 520, first connecting column; 530, damping cylinder; 540, buffer plate; 541, limiting block; 550, spring; 560, second connecting column; 561, mounting groove; 562, limiting groove; 570, second connecting plate;

[0028] 600, support chassis; 610, second sliding rail; 620, second sliding block. DETAILED DESCRIPTION

[0029] The utility model will be further described below in combination with the drawings and examples.

[0030] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the utility model belongs.

[0031] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0032] As shown in Figures 1-4 A lift with a descending buffer mechanism, comprising a first mounting plate 200, a second mounting plate 400 and a support chassis 600, a first movable plate 210 and a second movable plate 220 are respectively installed on the end walls at both ends of the first mounting plate 200, a fourth movable plate 420 and a fourth movable plate 420 are respectively installed on the end walls at both ends of the second mounting plate 400, the first mounting plate 200 and the second mounting plate 400 are connected through a driving mechanism 300, and a first buffer assembly 500 is installed on the upper surface of the support chassis 600 at four corners.

[0033] The driving mechanism 300 is composed of a second buffer assembly 310, a hydraulic telescopic rod 320 and a third buffer assembly 330, the second buffer assembly 310 and the third buffer assembly 330 are respectively installed at both ends of the hydraulic telescopic rod 320, and the second buffer assembly 310 and the third buffer assembly 330 are respectively connected with the first mounting plate 200 and the second mounting plate 400 through movable pin shafts.

[0034] One end of the first movable plate 210 and the second movable plate 220 is movably connected through a movable pin shaft first slider 110, the first slider 110 is arranged on the first slide rail 120, the first slider 110 and the first slide rail 120 are in sliding connection, and the first slide rail 120 is installed at the front and rear ends of one side of the lower surface of the lifting platform 100. The other end of the first movable plate 210 and the second movable plate 220 is movably connected through a movable pin shaft and a supporting base 600, and the cooperation of the first slider 110 and the first slide rail 120 can limit and guide the movement of the first movable plate 210 and the second movable plate 220.

[0035] One end of the third movable plate 410 and the fourth movable plate 420 is movably connected through a movable pin shaft and a second slider 620, the second slider 620 is arranged on the second slide rail 610, the second slider 620 and the second slide rail 610 are in sliding connection, and the second slide rail 610 is installed at the front and rear ends of one side of the upper surface of the supporting base 600. The other end of the third movable plate 410 and the fourth movable plate 420 is movably connected through a movable pin shaft and a lifting platform 100, and the arrangement of the second slider 620 and the second slide rail 610 can limit and guide the movement of the third movable plate 410 and the fourth movable plate 420.

[0036] The first buffer assembly 500, the second buffer assembly 310 and the third buffer assembly 330 are all composed of a first connecting plate 510, a first connecting column 520, a damping cylinder 530, a buffer plate 540, a spring 550 and a second connecting column 560. An installation groove 561 is formed in the center of the end wall of one end of the second connecting column 560. The inner wall of one end of the installation groove 561 is connected with the buffer plate 540 through the damping cylinder 530, and the outer wall of the damping cylinder 530 is sleeved with the spring 550.

[0037] The circumferential outer wall of the buffer plate 540 and the circumferential inner wall of the installation groove 561 are in clearance fit, the two sides of the circumferential outer wall of the buffer plate 540 are provided with limiting blocks 541, the other end of the limiting blocks 541 is installed in limiting grooves 562, the outer wall of the limiting blocks 541 and the groove wall of the limiting grooves 562 are in clearance fit, and the limiting grooves 562 are formed on the two sides of the circumferential inner wall of the installation groove 561. Because the circumferential outer wall of the buffer plate 540 and the circumferential inner wall of the installation groove 561 are in clearance fit, the outer wall of the limiting blocks 541 and the groove wall of the limiting grooves 562 are in clearance fit, thereby limiting and guiding the movement of the buffer plate 540.

[0038] One side surface of the buffer plate 540 is connected with the first connecting plate 510 through the first connecting column 520, and the other end of the second connecting column 560 is provided with a second connecting plate 570.

[0039] Working principle: when the staff puts the heavy object on the lifting platform 100, the heavy object will cause a certain impact force to the lifting platform 100 and be transmitted to the hydraulic telescopic rod 320, at this time, the second buffer assembly 310 and the third buffer assembly 330 can play a buffering role along the telescopic direction of the hydraulic telescopic rod 320, reduce the instantaneous impact force received by the hydraulic telescopic rod 320, thereby avoiding the situation that the hydraulic telescopic rod 320 is caused to burst due to the excessive instantaneous impact force received by the hydraulic telescopic rod 320, when the lifting platform 100 contacts the first buffer assembly 500 in the descending process, the first buffer assembly 500 can greatly reduce the impact force caused in the descending process of the lifting platform 100, and the safety performance is improved.

[0040] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Various modifications and changes can be made by those skilled in the art based on the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A lift with a lowering buffer mechanism, comprising a first mounting plate (200), a second mounting plate (400), and a supporting base frame (600), characterized in that: A first movable plate (210) and a second movable plate (220) are respectively installed on the end walls at both ends of the first mounting plate (200). A fourth movable plate (420) and a fourth movable plate (420) are respectively installed on the end walls at both ends of the second mounting plate (400). The first mounting plate (200) and the second mounting plate (400) are connected by a drive mechanism (300). A first buffer assembly (500) is installed at each of the four corners of the upper surface of the support base (600). The drive mechanism (300) is composed of a second buffer assembly (310), a hydraulic telescopic rod (320) and a third buffer assembly (330). The second buffer assembly (310) and the third buffer assembly (330) are respectively installed at both ends of the hydraulic telescopic rod (320), and the second buffer assembly (310) and the third buffer assembly (330) are movably connected to the first mounting plate (200) and the second mounting plate (400) respectively through movable pins.

2. The elevator with a lowering buffer mechanism according to claim 1, characterized in that: One end of the first movable plate (210) and the second movable plate (220) are movably connected to the first slider (110) via a movable pin. The first slider (110) is set on the first slide rail (120). The first slider (110) and the first slide rail (120) are slidably connected. The first slide rail (120) is installed at the front and rear ends on one side of the lower surface of the lifting platform (100). The other end of the first movable plate (210) and the second movable plate (220) are movably connected to the support base frame (600) via a movable pin.

3. The elevator with a lowering buffer mechanism according to claim 1, characterized in that: One end of the third movable plate (410) and the fourth movable plate (420) are connected to the second slider (620) through a movable pin. The second slider (620) is set on the second slide rail (610). The second slider (620) and the second slide rail (610) are slidably connected. The second slide rail (610) is installed at the front and rear ends on one side of the upper surface of the support base (600). The other end of the third movable plate (410) and the fourth movable plate (420) are movably connected to the lifting platform (100) through a movable pin.

4. The elevator with a lowering buffer mechanism according to claim 1, characterized in that: The first buffer assembly (500), the second buffer assembly (310) and the third buffer assembly (330) are all composed of a first connecting plate (510), a first connecting post (520), a damping cylinder (530), a buffer plate (540), a spring (550) and a second connecting post (560). A mounting groove (561) is provided at the center of the end wall of one end of the second connecting post (560). The inner wall of one end of the mounting groove (561) is connected to the buffer plate (540) through the damping cylinder (530), and a spring (550) is sleeved on the outer side of the outer wall of the damping cylinder (530).

5. The elevator with a lowering buffer mechanism according to claim 4, characterized in that: The outer circumferential wall of the buffer plate (540) and the inner circumferential wall of the mounting groove (561) are in clearance fit. Limiting blocks (541) are provided on both sides of the outer circumferential wall of the buffer plate (540). The other end of the limiting block (541) is installed in the limiting groove (562). The outer wall of the limiting block (541) and the groove wall of the limiting groove (562) are in clearance fit. The limiting groove (562) is opened on both sides of the inner circumferential wall of the mounting groove (561).

6. The elevator with a lowering buffer mechanism according to claim 4, characterized in that: One side surface of the buffer plate (540) is connected to the first connecting plate (510) via the first connecting post (520), and the other end of the second connecting post (560) is connected to the second connecting plate (570).

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