Buffering anti-collision mechanism for hydraulic lifting platform

Abstract

The utility model discloses a buffering anti-collision mechanism for a hydraulic lifting platform, which comprises a hydraulic buffering cylinder body, a telescopic movable rod is arranged on the hydraulic buffering cylinder body, an end plate is arranged at the top of the telescopic movable rod, a top spring is arranged at the bottom of the end plate, and the top spring is sleeved on the outer wall of the telescopic movable rod. The outer wall of the hydraulic buffering cylinder body is sleeved with an outer threaded sleeve, and the outer threaded sleeve is connected with an adjusting sleeve through threads. Through the designed adjusting sleeve and the outer thread sleeve, the adjusting sleeve is connected to the outer thread sleeve through threads, when the top spring is elastically loosened, the adjusting sleeve is rotated, the adjusting sleeve and the outer thread sleeve are screwed through threads, the adjusting sleeve moves upwards to compress the top spring, and the elastic potential energy of the top spring is recovered again; and the buffering effect is effectively prevented from being influenced by elastic looseness of the top spring.

Description

Technical Field

[0001] The utility model belongs to the technical field of buffer mechanisms, and in particular relates to a buffer and anti-collision mechanism for a hydraulic lifting platform. Background Art

[0002] The hydraulic lifting platform is a lifting system that is driven by hydraulics and is used for high-altitude operations and maintenance in factories, automatic warehouses, parking lots, municipal administration, docks, construction, decoration, logistics, electricity, transportation, petroleum, chemical industry, hotels, gymnasiums, industrial and mining enterprises, etc. When the hydraulic lifting platform is in use, in order to avoid a violent impact on the bottom due to excessive descent speed, a hydraulic buffer is installed on the base of the lifting platform to cushion the descent of the platform and avoid damage due to violent impact.

[0003] The existing hydraulic lifting platform's buffer and anti-collision mechanism is installed at the bottom of the hydraulic lifting platform. When the platform descends, it is buffered by the hydraulic buffer and the elastic squeezing action of the top spring to avoid violent collisions. However, it has the following defects:

[0004] (1) The buffer and anti-collision mechanism of the hydraulic lifting platform uses the end of the buffer to support the descending platform, and achieves the buffering purpose through the action of springs and hydraulics. However, when actually buffering and supporting the platform, the spring of the buffer structure is prone to fatigue during repeated buffering and squeezing, resulting in elastic relaxation, and the elasticity cannot be adjusted, which affects the buffering effect of the buffer and anti-collision mechanism of the hydraulic lifting platform. For this reason, we propose a buffer and anti-collision mechanism for a hydraulic lifting platform. Utility Model Content

[0005] The purpose of the utility model is to provide a buffer and anti-collision mechanism for a hydraulic lifting platform, so as to solve the problem that the spring structure in the buffer and anti-collision mechanism of the hydraulic lifting platform proposed in the above background technology is prone to elastic fatigue and relaxation and cannot be adjusted, thereby affecting the buffering effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a buffer and anti-collision mechanism for a hydraulic lifting platform, comprising a hydraulic buffer cylinder body, a telescopic movable rod is provided on the hydraulic buffer cylinder body, an end plate is installed on the top of the telescopic movable rod, a top spring is provided at the bottom of the end plate, and the top spring is sleeved on the outer wall of the telescopic movable rod, the outer wall of the hydraulic buffer cylinder body is sleeved with an external threaded sleeve, an adjustment sleeve is threadedly connected to the external threaded sleeve, and the adjustment sleeve is at the bottom of the top spring.

[0007] Preferably, a mounting bracket is fixed to the outer wall of the adjustment sleeve, a rotating block is rotatably connected to the interior of the mounting bracket via a rotating shaft, and a handle is fixed on the rotating block.

[0008] Preferably, the mounting frames are four, and the four mounting frames are in a circular array about the central axis of the adjusting sleeve.

[0009] Preferably, the outer wall of the handle is sleeved with an anti-skid sleeve.

[0010] Preferably, the outer thread sleeve and the adjusting sleeve are both circular in cross section, and the adjusting sleeve is T-shaped in longitudinal section.

[0011] Preferably, the central axes of the outer thread sleeve and the adjusting sleeve coincide with each other.

[0012] Preferably, the bottom of the outer thread sleeve and the surface of the hydraulic buffer cylinder body are jointly connected with a rib plate, which is triangular in cross section.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1) the adjusting sleeve is connected to the outer thread sleeve through threads, when the top spring appears elastic relaxation, the adjusting sleeve is rotated, the adjusting sleeve and the outer thread sleeve are screwed, the adjusting sleeve moves upward to compress the top spring, and the elastic potential energy is recovered, so that the influence of the elastic relaxation of the top spring on the buffering effect is avoided, the handle is rotatably connected to the adjusting sleeve through the mounting frame and the rotating block, when the adjusting sleeve is rotated, the handle is held by the hand to rotate the adjusting sleeve, so that the rotation is more convenient, the anti-skid sleeve increases the frictional resistance of the surface of the handle, so that the hand is not easy to slip when holding the handle, and the rib plate reinforces and supports the outer thread sleeve, so that the outer thread sleeve is prevented from being cracked during installation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a front view of the utility model;

[0016] Fig. 2 is an assembled sectional view of the outer thread sleeve and the adjusting sleeve of the utility model;

[0017] Fig. 3 is a perspective view of the adjusting sleeve of the utility model;

[0018] Fig. 4 is an assembled bottom view of the outer thread sleeve and the rib plate of the utility model;

[0019] In the drawings: 1, hydraulic buffer cylinder body; 2, rib plate; 3, handle; 4, anti-skid sleeve; 5, rotating block; 6, adjusting sleeve; 7, telescopic movable rod; 8, mounting frame; 9, outer thread sleeve; 10, top spring. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Embodiment

[0022] Please refer to Figs. 1 to 4 The utility model provides a kind of technical scheme: a kind of buffer anti-collision mechanism for hydraulic lifting platform, including hydraulic buffer cylinder body 1, hydraulic buffer cylinder body 1 is provided with telescopic movable rod 7, the top of telescopic movable rod 7 is equipped with end plate, and the bottom of end plate is provided with top spring 10, and top spring 10 is set on the outer wall of telescopic movable rod 7, the outer wall of hydraulic buffer cylinder body 1 is equipped with outer thread sleeve 9, and outer thread sleeve 9 is connected with adjusting sleeve 6 by thread, by the designed adjusting sleeve 6 and outer thread sleeve 9, adjusting sleeve 6 is connected on outer thread sleeve 9 by thread, when top spring 10 appears elastic relaxation, rotating adjusting sleeve 6, adjusting sleeve 6 and outer thread sleeve 9 are screwed, so that adjusting sleeve 6 moves up and compresses top spring 10, so that its elastic potential restores again, effectively avoid the influence of buffering effect due to the elastic relaxation of top spring 10, and adjusting sleeve 6 is at the bottom of top spring 10.

[0023] In the embodiment, preferably, the outer wall of the adjusting sleeve 6 is fixed with the mounting bracket 8, the inside of the mounting bracket 8 is rotatably connected with the rotating block 5 through the rotating shaft, and the handle 3 is fixed on the rotating block 5. By designing the mounting bracket 8, the rotating block 5 and the handle 3, the handle 3 can be rotatably connected to the adjusting sleeve 6 through the mounting bracket 8 and the rotating block 5. When rotating the adjusting sleeve 6, the handle 3 is held by the hand to rotate the adjusting sleeve 6, so that the rotation is more convenient. The mounting bracket 8 is four, and the four mounting brackets 8 are circularly arranged about the center axis of the adjusting sleeve 6. The outer wall of the handle 3 is sleeved with the anti-skid sleeve 4. By designing the anti-skid sleeve 4, the frictional resistance of the surface of the handle 3 is increased, so that the hand is not easy to slip when holding the handle 3.

[0024] In the embodiment, preferably, the cross section of the outer thread sleeve 9 and the adjusting sleeve 6 is circular structure, the longitudinal section of the adjusting sleeve 6 is T-shaped structure, the center axes of the outer thread sleeve 9 and the adjusting sleeve 6 coincide with each other, and the bottom of the outer thread sleeve 9 and the surface of the hydraulic buffer cylinder body 1 are jointly connected with the rib plate 2. By designing the rib plate 2, the outer thread sleeve 9 is reinforced and supported, so that the outer thread sleeve 9 is prevented from cracking during installation. The cross section of the rib plate 2 is triangular structure.

[0025] The utility model discloses a working principle and use flow: the utility model passes through the screw connection of adjusting sleeve 6 on outer thread cover 9, when the elastic relaxation of top spring 10 appears, hand holds handle 3 and rotates adjusting sleeve 6, makes its rotation more convenient, rotates adjusting sleeve 6, and adjusting sleeve 6 and outer thread cover 9 carry out the screwing of thread, make adjusting sleeve 6 and compress top spring 10 and make its elastic potential energy restore again, effectively avoid the influence buffering effect due to the elastic relaxation of top spring 10.

[0026] Although the embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A buffer and anti-collision mechanism for a hydraulic lifting platform, comprising a hydraulic buffer cylinder (1), a telescopic movable rod (7) provided on the hydraulic buffer cylinder (1), an end plate installed on the top of the telescopic movable rod (7), a top spring (10) provided on the bottom of the end plate, and the top spring (10) sleeved on the outer wall of the telescopic movable rod (7), characterized in that: An external threaded sleeve (9) is sleeved on the outer wall of the hydraulic buffer cylinder (1), an adjustment sleeve (6) is connected to the external threaded sleeve (9) through threads, and the adjustment sleeve (6) is located at the bottom of the top spring (10).

2. The buffer and anti-collision mechanism for a hydraulic lifting platform according to claim 1, characterized in that: A mounting frame (8) is fixed to the outer wall of the adjustment sleeve (6); a rotating block (5) is rotatably connected to the interior of the mounting frame (8) via a rotating shaft; and a handle (3) is fixed to the rotating block (5).

3. The buffer and anti-collision mechanism for a hydraulic lifting platform according to claim 2, characterized in that: There are four mounting frames (8), and the four mounting frames (8) are arranged in a circular array about the central axis of the adjustment sleeve (6).

4. The buffer and anti-collision mechanism for a hydraulic lifting platform according to claim 2, characterized in that: The outer wall of the handle (3) is sheathed with an anti-slip sleeve (4).

5. The buffer and anti-collision mechanism for a hydraulic lifting platform according to claim 1, characterized in that: The cross sections of the external threaded sleeve (9) and the adjusting sleeve (6) are both circular structures, and the longitudinal section of the adjusting sleeve (6) is a T-shaped structure.

6. The buffer and anti-collision mechanism for a hydraulic lifting platform according to claim 1, characterized in that: The central axes of the external threaded sleeve (9) and the adjusting sleeve (6) coincide with each other.

7. The buffer and anti-collision mechanism for a hydraulic lifting platform according to claim 1, characterized in that: The bottom of the external threaded sleeve (9) and the surface of the hydraulic buffer cylinder (1) are commonly connected with a rib plate (2), and the cross section of the rib plate (2) is a triangular structure.

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