A kind of Foldable lift frame
Technical field
The utility model relates to a kind of lifting mechanism of bench board, is specifically related to a kind of Foldable lift frame.
Background technology
The lifting mechanism that existing stroke is larger, the lifting mechanism that mostly adopts rope and winch to consist of.Although this class lifting mechanism stroke and load-carrying capacity are larger, its structure is comparatively complicated, and its bracing frame or winch need to be arranged on the upper end of lifting table.It is larger that this structure is not suitable for load carrying ability, and lifting table and surrounding environment form the working space on larger plane.Therefore be necessary existing lifting mechanism is improved.
The utility model content
The purpose of this utility model is to overcome the defective that exists in prior art, provides a kind of simple in structure, and lifting travel and load carrying ability are larger, can be consisted of the Foldable lift frame on larger plane by the bench board of lifting and surrounding environment.
For achieving the above object, the technical solution of the utility model is a kind of Foldable lift frame of design, it is characterized in that, described crane comprises the relay lifting mechanism that some levels are made of cylinder body and piston rod, bottom cylinder body in described relay lifting mechanism is connected with base, the end of the piston rod that coordinates with bottom cylinder body is connected with the lifting guide pillar of upper class, be fixed with the upper class cylinder body on described upper class lifting guide pillar, the upper class cylinder body coordinates with the upper class piston rod, and the end of upper class piston rod is connected relay like this repeatedly with the lifting guide pillar of upper class again; The middle part of the folding connecting rod of described lifting guide pillar and parallelogram structure is hinged, the two ends of the folding connecting rod of described parallelogram structure and adjacent folding connecting rod are hinged, and the folding connecting rod of described parallelogram structure is hinged with the framework of lifting table topmost.
In order to simplify the integral structure of lifting mechanism, preferred technical scheme is, described relay lifting mechanism is divided into three grades, be provided with two cylinder bodies and two piston rods in the described relay lifting mechanism of the first order, be respectively equipped with a cylinder body and a piston rod in the second stage and the described relay lifting mechanism of the third stage.
In order to make the lifting that lifting table can safety and steady, further preferred technical scheme is, the two ends of described lifting guide pillar coordinate with guide groove in guidepost by guide roller, also are provided with in the frame sides of described lifting table the guide roller that coordinates with guide groove.
In order to simplify the integral structure of lifting mechanism, further preferred technical scheme also has, and is provided with at least the folding connecting rod of a parallelogram structure between described two guide rods.
In order to simplify the integral structure of lifting mechanism, further preferred technical scheme also has, and described cylinder body is hydraulic actuating cylinder or is cylinder.
For intensity and the rigidity that improves lifting structure, further preferred technical scheme also has, and is provided with connecting rod between the folding connecting rod of described cylinder body both sides.
Advantage of the present utility model and beneficial effect are: this Foldable lift frame can be according to using needs, use multistage by the dried lift drive mechanism that coordinates of cylinder body and piston, lift drive mechanism is connected with the connecting rod of the formation parallelogram that is arranged on its both sides, thereby forms the Foldable lift frame that drives the lifting table lifting.The characteristics such as this crane has the structure letter, and single lifting is flexible, operates steadily, and lifting load-carrying capacity and stroke are larger, and the manufacturing cost of equipment and use cost are lower.
Description of drawings
Fig. 1 is that the structure master of the utility model Foldable lift frame looks schematic diagram;
Fig. 2 is the schematic side view of Fig. 1.
In figure: 1, cylinder body; 2, piston rod; 3, base; 4, lifting guide pillar; 5, folding connecting rod; 6, framework; 7, guide roller; 8, guidepost; 9, guide groove; 10, connecting rod.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, the utility model is a kind of Foldable lift frame, this crane comprises the relay lifting mechanism that some levels are made of cylinder body 1 and piston rod 2, bottom cylinder body 1 in relay lifting mechanism is connected with base 3, the end of the piston rod 2 that coordinates with bottom cylinder body 1 is connected with the lifting guide pillar 4 of upper class, be fixed with upper class cylinder body 1 on upper class lifting guide pillar 4, the upper class cylinder body coordinates with upper class piston rod 2, and the end of upper class piston rod is connected relay like this repeatedly with the lifting guide pillar 4 of upper class again; Lifting guide pillar 4 is hinged with the middle part of the folding connecting rod 5 of parallelogram structure, the two ends of the folding connecting rod 5 of parallelogram structure and adjacent folding connecting rod are hinged, and the folding connecting rod 5 of described parallelogram structure is hinged with the framework 6 of lifting table topmost.
In the utility model in order to simplify the integral structure of lifting mechanism, preferred embodiment is, relay lifting mechanism can be divided into three grades, be provided with two cylinder bodies 1 and two piston rods 2 in the described relay lifting mechanism of the first order, be respectively equipped with a cylinder body 1 and a piston rod 2 in the second stage and the described relay lifting mechanism of the third stage.
In the utility model in order to make the lifting that lifting table can safety and steady, further preferred embodiment is, coordinate with guide groove 9 in guidepost 8 by guide roller 7 at the two ends of lifting guide pillar 4, also be provided with at framework 6 sides of lifting table the guide roller 7 that coordinates with guide groove.
In order to simplify the integral structure of lifting mechanism, further preferred embodiment also has in the utility model, is provided with at least the folding connecting rod 5 of a parallelogram structure between two lifting guide pillars 4.
In order to simplify the integral structure of lifting mechanism, further preferred embodiment also has in the utility model, and described cylinder body 1 can be hydraulic actuating cylinder or be cylinder.
Intensity and rigidity in order to improve lifting structure in the utility model, further preferred embodiment also has, and is provided with connecting rod 10 between the folding connecting rod of cylinder body 1 both sides.
The utility model in use, the bay-lift of the flexible formation relay-type by a plurality of piston rods, wherein a plurality of piston rods can shrink simultaneously, also can shrink respectively, be conducive to like this control the speed of lifting and the stroke of lifting, also can control bay-lift simultaneously and rest on height arbitrarily.The characteristics such as this crane has the structure letter, and single lifting is flexible, operates steadily, and lifting load-carrying capacity and stroke are larger, and the manufacturing cost of equipment and use cost are lower.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.