CN210915217U - Falling prevention mechanism of hydraulic lifting platform - Google Patents

Abstract

The utility model discloses a falling prevention mechanism of a hydraulic lifting platform, which comprises a hydraulic cylinder and a screw rod, wherein the hydraulic cylinder is arranged on the surface of a working flat plate; the working flat plate is symmetrically provided with guide rails, and the screw rod is arranged in the guide rails; the hydraulic cylinder is connected with a lifting platform through a telescopic rod; the side surface of the lifting platform is provided with a transmission block, and the transmission block is clamped in the guide rail; the two ends of the screw rod are provided with driving shafts, the transmission block is provided with screw holes, and the screw rod penetrates through the screw holes and is matched with the screw holes; the lifting platform is provided with a carrying plate, handrails are arranged on two sides of the carrying plate, and handles are arranged at the top ends of the handrails; the driving shaft is connected with a driving motor, the hydraulic cylinder is provided with a hydraulic system, and the driving motor and the hydraulic system are both connected with a controller; the utility model adds a screw driving structure on the traditional hydraulic driving lifting platform, on one hand, the pressure driven by the hydraulic rod is reduced; on the other hand, the screw rod plays a role in locking and fixing in the non-rotating process.

Description

Falling prevention mechanism of hydraulic lifting platform

Technical Field

The utility model relates to a lift platform protection technical field specifically is a mechanism of preventing falling of hydraulic lift platform.

Background

The hydraulic lifting platform is a common lifting device, is mainly used for high-altitude operation, and generally adopts a hydraulic cylinder to lift a lifting rod to realize height adjustment, and the hydraulic cylinder is generally connected with a hydraulic pump through an oil pipe and provides power for the whole system by utilizing a hydraulic system. The lifting device is widely applicable to various industrial enterprises and production lines of automobile, container and mold manufacturing, wood processing, chemical filling and the like, meets the lifting requirements of different operation heights, can be assembled in various table forms and matched with various control modes, has the characteristics of stable and accurate lifting, frequent starting, large load capacity and the like, effectively solves various lifting operation difficulties in the industrial enterprises, and enables the production operation to be easy and free

The existing hydraulic lifting platform is not designed with anti-falling facilities generally, so once a hydraulic system fails, accidents are easy to happen, and the existing hydraulic lifting platform is not beneficial to long-term use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic lifting platform prevents mechanism of falling to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a falling prevention mechanism of a hydraulic lifting platform comprises a hydraulic cylinder and a screw rod, wherein the hydraulic cylinder is arranged on the surface of a working flat plate; the working flat plate is symmetrically provided with guide rails, and the screw rod is arranged in the guide rails; the hydraulic cylinder is connected with a lifting platform through a telescopic rod; the side surface of the lifting platform is provided with a transmission block, and the transmission block is clamped in the guide rail; the two ends of the screw rod are provided with driving shafts, the transmission block is provided with screw holes, and the screw rod penetrates through the screw holes and is matched with the screw holes; the lifting platform is provided with a carrying plate, handrails are arranged on two sides of the carrying plate, and handles are arranged at the top ends of the handrails; the driving shaft is connected with a driving motor, the hydraulic cylinder is provided with a hydraulic system, and the driving motor and the hydraulic system are both connected with a controller.

Preferably, the lifting platform is a square plate, the guide rails and the hydraulic cylinders are provided with four groups of guide rails and four groups of hydraulic cylinders, the four groups of guide rails and the four groups of hydraulic cylinders are respectively arranged at four corners of the lifting platform, and the transmission blocks are aligned with the four guide rails.

Preferably, the surface of the carrier plate is provided with a buffer pad, the buffer pad is made of rubber materials, and the upper surface of the buffer pad is flush with the carrier plate.

Preferably, the lower limit plate is arranged on the lower side of the guide rail, the lower limit plate is flush with the opening of the hydraulic cylinder, and the lower limit plate is matched with the lifting platform.

Preferably, the top end of the guide rail is provided with an upper limiting plate, and the upper limiting plate is matched with the carrying plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model adds a screw driving structure on the traditional hydraulic driving lifting platform, on one hand, the pressure driven by the hydraulic rod is reduced; on the other hand, the screw rod plays a role in locking and fixing in the non-rotating process; the utility model discloses can effectively guarantee the permanent use of device, safe and reliable more.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the structure of the object-carrying plate of the present invention;

reference numbers in the figures: 1. a working plate; 2. a guide rail; 21. a lower limiting plate; 22. an upper limiting plate; 3. a hydraulic cylinder; 31. a telescopic rod; 4. a lifting platform; 41. a transmission block; 42. a screw hole; 5. a loading plate; 51. a railing; 52. a handle; 53. a cushion pad; 6. and a screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a falling prevention mechanism of a hydraulic lifting platform comprises a hydraulic cylinder 3 and a screw rod 6, wherein the hydraulic cylinder 3 is arranged on the surface of a working flat plate 1; the working flat plate 1 is symmetrically provided with guide rails 2, and the screw rod is arranged in the guide rails 2; the hydraulic cylinder 3 is connected with a lifting platform 4 through a telescopic rod 31; a transmission block 41 is arranged on the side surface of the lifting platform 4, and the transmission block 41 is clamped in the guide rail 2; two ends of the screw rod 6 are provided with driving shafts, the transmission block 41 is provided with a screw hole 42, and the screw rod 6 penetrates through the screw hole 42 and is matched with the screw hole 42; the lifting platform 4 is provided with an object carrying plate 5, two sides of the object carrying plate 5 are provided with railings 51, and the top ends of the railings 51 are provided with handles 52; the driving shaft is connected with a driving motor, the hydraulic cylinder 3 is provided with a hydraulic system, and the driving motor and the hydraulic system are both connected with a controller.

Further, lift platform 4 is square board, and guide rail 2, pneumatic cylinder 3 all are provided with four groups, set up four edges and corners in lift platform 4 respectively, and transmission block 41 aligns with four guide rail 2 and sets up.

Further, the surface of the carrier plate 5 is provided with a buffer 53, the buffer 53 is made of rubber material, and the upper surface of the buffer 53 is kept flush with the carrier plate 5.

Further, 2 downside of guide rail is provided with down limiting plate 21, limiting plate 21 and 3 jar mouths of pneumatic cylinder are parallel and level each other down, and limiting plate 21 and lift platform 4 are mutually supported down.

Furthermore, the top end of the guide rail 2 is provided with an upper limiting plate 22, and the upper limiting plate 22 is matched with the carrying plate 5.

The working principle is as follows: in the actual use process, the lifting platform 4 has two moving modes; one type of hydraulic system supplies oil to a hydraulic cylinder 3, and drives a telescopic rod 31 to move so as to drive a lifting platform 4 to move up and down; in the other mode, the controller controls the motors of the rotating shafts at the two ends of the screw rod 6 to rotate, so that the screw rod is matched with the screw hole 4, the transmission block 41 is driven to move, and the lifting platform 4 is driven to move; in the moving process of the actual lifting platform 4, the rotating speed of the screw rod 6 and the telescopic speed of the telescopic rod 31 are in dynamic balance, so that the whole work is matched. Drive through two kinds of modes jointly, alleviateed single mode drive in-process and happened the accident risk of falling, when a drive broke down, another kind of drive facility then can play the effect of preventing falling to guarantee the interim operation of equipment, make things convenient for subsequent maintenance.

The hydraulic cylinder 3 is provided with a plurality of groups, and supports and fixes the lifting platform 4 together, so that the up-and-down movement stability is ensured. Meanwhile, the transmission block 41 moves along the guide rail 2 and penetrates through the screw rod 6, so that the consistency of the movement direction is ensured, and deflection is avoided.

The lower limit plate 21 is flush with the opening of the hydraulic cylinder 3 and can be clamped with the lifting platform 4; the upper limiting plate 22 is arranged at the top end of the guide rail 2 and can be clamped with the object carrying plate 5; the limiting plates arranged up and down limit the moving stroke of the lifting platform 4, so that the use is safer. The setting of blotter 53, the placing of material when conveniently carrying the material avoids the fish tail to carry thing board 5, plays certain guard action.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a mechanism of preventing falling of hydraulic lifting platform which characterized in that: the hydraulic cylinder (3) is arranged on the surface of the working flat plate (1); the working flat plate (1) is symmetrically provided with guide rails (2), and the screw rod is arranged in the guide rails (2); the hydraulic cylinder (3) is connected with a lifting platform (4) through a telescopic rod (31); a transmission block (41) is arranged on the side surface of the lifting platform (4), and the transmission block (41) is clamped in the guide rail (2); two ends of the screw rod (6) are provided with driving shafts, the transmission block (41) is provided with a screw hole (42), and the screw rod (6) penetrates through the screw hole (42) and is matched with the screw hole; an object carrying plate (5) is arranged on the lifting platform (4), handrails (51) are arranged on two sides of the object carrying plate (5), and handles (52) are arranged at the top ends of the handrails (51); the driving shaft is connected with a driving motor, the hydraulic cylinder (3) is provided with a hydraulic system, and the driving motor and the hydraulic system are both connected with a controller.

2. The fall arrest mechanism for a hydraulic lift platform according to claim 1, further comprising: lifting platform (4) are square boards, and guide rail (2), pneumatic cylinder (3) all are provided with four groups, set up four edges and corners department at lifting platform (4) respectively, and drive block (41) aligns with four guide rail (2) and sets up.

3. The fall arrest mechanism for a hydraulic lift platform according to claim 1, further comprising: the surface of the carrying plate (5) is provided with a buffer cushion (53), the buffer cushion (53) is made of rubber materials, and the upper surface of the buffer cushion (53) is kept flush with the carrying plate (5).

4. The fall arrest mechanism for a hydraulic lift platform according to claim 1, further comprising: guide rail (2) downside is provided with down limiting plate (21), limiting plate (21) and pneumatic cylinder (3) jar mouth parallel and level each other down, and limiting plate (21) and lift platform (4) are mutually supported down.

5. The fall arrest mechanism for a hydraulic lift platform according to claim 1, further comprising: and an upper limiting plate (22) is installed at the top end of the guide rail (2), and the upper limiting plate (22) is matched with the loading plate (5).

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