Adjustable lifter
Technical Field
The utility model belongs to the technical field of lifters, and particularly relates to an adjustable lifter.
Background
The automobile lifting machine is hydraulic lifting equipment, is commonly used and used for lifting automobiles, and is disclosed in the prior patent with the publication number of CN215326671U, and comprises two brackets, two height detection devices, a lifting device and a lifting device, wherein the lifting platform and the driving device are arranged on each bracket, and the driving device is used for driving the lifting platform to move relative to the brackets;
When the lifting machine in the prior art is used, the lifting arm consists of the arm seat and the front arm, and the front arm can be adjusted in a telescopic way, but most of the front arms of the lifting machine in the prior art are fixed by bolts, so that the bolts need to be repeatedly screwed and disassembled when the length of the front arms needs to be adjusted in the later period, tools such as a spanner and the like are needed, the telescopic adjustment of the whole length of the lifting arm cannot be completed in a free hand manner, and the defects exist.
Disclosure of utility model
The present utility model is directed to an adjustable lifting machine, which solves the above-mentioned problems.
The adjustable lifting machine comprises a lifting machine main body and two lifting seats arranged on the inner side of the lifting machine main body, wherein two lifting arm assemblies are rotatably arranged at the top of each lifting seat, a hydraulic pump is further arranged on the outer side surface of the lifting machine main body, each lifting arm assembly comprises an arm seat, a round supporting block and a front arm, the front arms are movably arranged at the front ends of the arm seats, the round supporting blocks are arranged at the top of the front ends of the front arms, inner sliding grooves are formed in the arm seats, inner sliding blocks are arranged in the inner sliding grooves in a sliding mode, the rear ends of the front arms penetrate through the inner side of the inner sliding grooves and are fixed with the inner sliding blocks, an inserting type adjusting structure is arranged between the front arms and the arm seats, each inserting type adjusting structure comprises a rectangular end block, a limiting hole and an inserting block, each inserting block is fixed on the bottom surface of the rectangular end block, inserting holes corresponding to the inserting blocks are formed in the top of the front ends of the arm seats, a plurality of rectangular end blocks are uniformly formed in the surface of the front arms, and the inserting holes corresponding to one of the rectangular end blocks are formed in the top of the inserting blocks and pass through the limiting holes in the bottom surfaces of the inserting blocks.
Preferably, the plug-in type adjusting structure further comprises a clamping limiting structure, the clamping limiting structure is arranged between the plug block and the jack, the clamping limiting structure comprises an inner groove, a spring, a telescopic clamping block and a side clamping groove, the inner groove is formed in one side of the plug block, the telescopic clamping block is movably mounted in the inner groove through the spring, the side clamping grooves corresponding to the telescopic clamping blocks are formed in the inner walls of the two sides of the jack, and the end parts of the telescopic clamping blocks are ejected to one side clamping groove.
Preferably, one end of the spring is fixed on the inner wall of the inner groove, and the other end of the spring is fixedly connected with the telescopic clamping block.
Preferably, an ejecting hole communicated with the inner groove is formed in one side surface of the insertion block, and the ejecting hole corresponds to the telescopic clamping block.
Preferably, a positioning structure is further arranged between the inner slide block and the inner slide groove, the positioning structure comprises a rubber seat, positioning protrusions and positioning clamping grooves, the rubber seat is embedded on the top surface of the inner slide block, the top surface of the rubber seat is provided with integrated positioning protrusions, the upper wall of the inner slide groove is provided with a plurality of positioning clamping grooves corresponding to the positioning protrusions, and the positioning protrusions are extruded into one of the positioning clamping grooves.
Preferably, a rectangular caulking groove for installing the rubber seat is formed in the top surface of the inner sliding block.
Compared with the prior art, the lifting arm has the beneficial effects that by improving and optimizing the lifting machine in the prior art and designing the plug-in type adjusting structure between the arm seat and the forearm, operators can conveniently and quickly finish the length adjustment of the lifting arm by bare hands in the actual use process, the adjustment convenience is greatly improved, and the use convenience and flexibility of the whole lifting machine are improved.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is an enlarged view of a portion of the area A of FIG. 1 in accordance with the present utility model;
FIG. 3 is a cross-sectional view of the connection of the arm rest and forearm of the utility model;
FIG. 4 is an enlarged view of a portion of the area B of FIG. 3 in accordance with the present utility model;
FIG. 5 is an enlarged view of a portion of the area C of FIG. 3 in accordance with the present utility model;
In the figure, 1, a lifter main body, 11, a hydraulic pump, 2, a lifting seat, 3, an arm seat, 31, an inner sliding groove, 32, an inner sliding block, 321, a rubber seat, 322, a positioning protrusion, 33, an inserting hole, 34, a positioning clamping groove, 4, a round supporting block, 5, a front arm, 61, a rectangular end block, 62, a limiting hole, 63, an inserting block, 64, an inner groove, 65, a spring, 66, a telescopic clamping block, 67 and a side clamping groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1 to fig. 4, a first embodiment of the present utility model provides a technical solution: an adjustable lifter comprises a lifter main body 1 and two lifting seats 2 arranged on the inner side of the lifter main body 1, wherein the top of the lifting seats 2 is rotatably provided with two lifting arm assemblies, the outer side surface of the lifter main body 1 is also provided with a hydraulic pump 11, the lifting arm assemblies are used as driving sources of the whole lifter, the lifting arm assemblies comprise an arm seat 3, a round supporting block 4 and a front arm 5, the front arm 5 is movably arranged on the front end of the arm seat 3, the round supporting block 4 is arranged on the top of the front end of the front arm 5, an inner sliding groove 31 is formed in the arm seat 3, an inner sliding block 32 is arranged in the inner sliding groove 31 in a sliding manner, the rear end of the front arm 5 penetrates into the inner side of the inner sliding groove 31 and is fixed with the inner sliding block 32, a plug-in type adjusting structure is arranged between the front arm 5 and the arm seat 3 and comprises a rectangular end block 61, a limiting hole 62 and a plug-in block 63, the inserting block 63 is welded and fixed on the bottom surface of the rectangular end block 61, the jack 33 corresponding to the inserting block 63 is arranged at the top of the front end of the arm seat 3, a plurality of limiting holes 62 corresponding to the inserting block 63 are uniformly arranged on the surface of the front arm 5, the rectangular end block 61 is attached to the top surface of the arm seat 3, the bottom end of the inserting block 63 penetrates into one of the limiting holes 62 through the jack 33, the front arm 5 can be stably limited, the rectangular end block 61 can be lifted subsequently, the bottom end of the inserting block 63 moves out of the limiting hole 62, the limit of the front arm 5 can be released, the telescopic adjustment of the front arm 5 is facilitated, the plug-in type adjusting structure also comprises a clamping limiting structure, the clamping limiting structure is arranged between the inserting block 63 and the jack 33 and comprises an inner groove 64, a spring 65, a telescopic clamping block 66 and a side clamping groove 67, the inner groove 64 is arranged in one side of the inserting block 63, the telescopic clamping blocks 66 are movably arranged in the inner groove 64 through the springs 65, the side clamping grooves 67 corresponding to the telescopic clamping blocks 66 are formed in the inner walls of the two sides of the insertion holes 33, the end parts of the telescopic clamping blocks 66 are ejected into one of the side clamping grooves 67, clamping and limiting of the inserting blocks 63 can be achieved, the inserting blocks 63 can be inserted into limiting holes 62 at other positions through the insertion holes 33 and limited by the clamping blocks 66, overall stability in daily use is guaranteed, when the front arms 5 are required to be subjected to telescopic adjustment, only the rectangular end blocks 61 are required to be lifted forcefully, the inserting blocks 63 are enabled to move upwards, the end parts of the telescopic clamping blocks 66 are extruded into the inner groove 64, the inserting blocks 63 can be lifted smoothly, under the limiting condition that the front arms 5 are not limited by the inserting blocks 63, the transverse movement of the front arms 5 can be directly adjusted, the rectangular end blocks 61 are pressed down again after the front arms 5 are adjusted to be at proper lengths, the bottom ends of the inserting blocks 63 can be inserted into the limiting holes 62 at other positions, the telescopic clamping blocks 66 are enabled to be pushed into the side clamping grooves 67 under the pushing of the springs 65, and stable stability of the whole front arms 63 can be guaranteed after the front arms 63 are lifted.
One end of the spring 65 is fixed on the inner wall of the inner groove 64, and the other end of the spring 65 is fixedly connected with the telescopic clamping block 66, so that the installation stability of the spring 65 is ensured.
Wherein, a pop-up hole is formed on one side surface of the insert block 63 and is communicated with the inner groove 64, and the pop-up hole corresponds to the telescopic clamping block 66 for smooth pop-up of the telescopic clamping block 66.
Examples
Referring to fig. 1 to 5, in a second embodiment of the present utility model, the difference between the present utility model and the previous embodiment is that the positioning structure is provided, so that an operator can conveniently determine whether the limiting hole 62 is aligned with the insert 63 during the telescopic adjustment of the forearm 5, thereby facilitating the insertion of the subsequent insert 63 and assisting in positioning.
Specifically, still be provided with location structure between interior slider 32 and the interior draw-in groove 31, location structure includes rubber seat 321, location arch 322 and location draw-in groove 34, the top surface of slider 32 is including the embedded installation of rubber seat 321, and the top surface of rubber seat 321 is provided with the location arch 322 of integral type, both be made for the rubber material, can take place elastic deformation when receiving the extrusion, a plurality of location draw-in grooves 34 corresponding with location arch 322 have been seted up to the upper wall of interior draw-in groove 31, location arch 322 is extruded to in one of them location draw-in groove 34, make follow-up forearm 5 in flexible adjustment process, interior slider 32 can slide in interior spout 31, and make location arch 322 constantly be extruded in other location draw-in grooves 34, every location arch 322 is extruded in a location draw-in groove 34 after, will produce certain resistance to interior slider 32, and there will be a spacing hole 62 to align with insert 63 this moment, play auxiliary positioning effect, make things convenient for operating personnel to judge whether spacing hole 62 aligns with insert 63 in the in-process of flexible regulation forearm 5, more convenient for inserting 63 afterwards.
Wherein, rectangular caulking grooves for installing the rubber seat 321 are formed on the top surface of the inner slide 32, so that the embedded installation of the rubber seat 321 is realized.
The principle of the structure of the main body 1 of the lifter in the utility model is known technology disclosed in the prior patent, and the specific reference can be made to the prior patent with publication number CN215326671U, which is not repeated herein.
Although embodiments of the present utility model have been shown and described in detail with reference to the foregoing detailed description, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.