Lifting portal frame
By designing a lifting mast that includes an outer mast, an inner mast, a lifting cylinder, and a side-shifting cylinder, the problem that traditional forklift masts cannot meet the requirements for loading and unloading high-level goods is solved, thus realizing the efficient loading and unloading function of forklifts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional forklift masts cannot meet the loading and unloading needs of high-lift goods, and forklifts with high lifting heights are expensive. Ordinary forklift masts cannot achieve left and right lateral movement.
A lifting mast was designed, comprising an outer mast, an inner mast, a lifting cylinder, and a side-shifting cylinder. The lifting cylinder drives the inner mast to rise and fall, while the side-shifting cylinder enables left and right side movement, thereby increasing the lifting height and lateral movement capabilities of the forklift.
The lifting stroke of the forklift mast has been extended, enabling the forklift's front attachments to move laterally to the left and right, making it suitable for loading and unloading goods on high racks.
Smart Images
Figure CN224030578U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a forklift mast technical field, concretely is a kind of lifting mast. BACKGROUND
[0002] Forklift mast as an important component of forklift, the crossbeam of mast can be externally hung accessory, realize the grabbing and carrying of goods function, the traditional forklift mast is generally fixed on the forklift frame, the inner mast does the up-down lifting movement in outer mast, the lifting height of general forklift mast is 3 meters, so that the goods on the high-position shelf exceeding 3 meters cannot be carried, although there is high lifting height forklift on the market, but expensive, and the mast of ordinary forklift is fixed on the forklift frame and cannot do the left-right horizontal movement, to externally hang side shifter to drive fork to realize the purpose of left-right horizontal movement, and the accessory of ordinary side shift distance class can only do horizontal side shift distance, still cannot satisfy the demand of forklift high-position goods. UTILITY MODEL CONTENTS
[0003] The utility model provides a kind of lifting mast, it overcomes the deficiency described in background art.
[0004] The utility model solves the technical problem of the technical scheme that it employs is as follows:
[0005] A kind of lifting mast, including outer mast, inner mast, lifting cylinder, side shift cylinder, outer mast includes stand, and the stand is provided with guide groove along vertical direction, outer mast side end is provided with lifting cylinder, and the movable end of lifting cylinder is connected with inner mast, inner mast includes T-shaped beam, T-shaped beam vertically slides along guide groove, outer mast is installed with side shift cylinder by cylinder hanging plate, sliding wear block is set in guide groove.In the sliding wear block of inner mast T-shaped beam, reduce friction resistance;Lifting cylinder is driven to do lifting movement in guide groove by the telescopic of lifting cylinder;Side shift cylinder is installed on cylinder hanging plate, when empty, the whole mast is driven to do left-right side shift movement by the side shift of cylinder, to adjust the position of goods.
[0006] The utility model realizes the left-right side shift of the part that the front end of forklift is connected with goods, on the basis of the lifting height of the mast of original forklift, again increase up-down lifting, increase the lifting height of forklift, realize the loading and unloading function of goods on multiple high-position shelves.
[0007] A preferred technical solution: outer mast further includes cylinder guard groove plate, reinforcing plate, upper hook support plate, lower hook support plate, reinforcing plate, upper hook support plate and lower hook support plate are transversely welded on the stand, upper hook is welded and set on upper hook support plate, lower hook seat is welded and set on lower hook support plate, and lower hook is arranged on lower hook seat.Reinforcing plate is welded on the stand, to increase the rigidity of outer mast.
[0008] A preferred technical solution: the upper hook is provided with an oil cylinder seat for mounting a side moving oil cylinder at the bottom end.
[0009] A preferred technical solution: a lifting oil cylinder mounting hole is arranged through the bottom side end of the oil cylinder protection groove plate, and a fixed end of the lifting oil cylinder is connected to the lifting oil cylinder mounting hole through a pin shaft.
[0010] A preferred technical solution: the inner door frame further comprises a vertical plate, a top plate, an upper cross beam, a lower cross beam and a left side beam, the vertical plate is connected to the top plate at the top end, and the outer side end of the vertical plate is connected to a T-shaped beam, the upper cross beam, the lower cross beam and the left side beam form a fork frame structure, and suitable accessories or forks can be hung and mounted, so that the loading and unloading, grabbing or clamping functions of goods can be realized.
[0011] A preferred technical solution: the top plate is provided with an oil cylinder pin shaft mounting seat at the bottom end, and a movable end of the lifting oil cylinder is connected to the oil cylinder pin shaft mounting seat through a pin shaft.
[0012] A preferred technical solution: the lower hook seat is symmetrically arranged and located at the bottom end of the side moving oil cylinder.
[0013] A preferred technical solution: two lifting oil cylinders are arranged.
[0014] A preferred technical solution: the sliding wear-resistant block is made of wear-resistant plastic material and protects the T-shaped beam.
[0015] A preferred technical solution: the side moving oil cylinder comprises an oil cylinder barrel and a piston rod, the oil cylinder barrel is driven by a hydraulic system to move left and right on the piston rod, and the piston rod is connected to the oil cylinder seat.
[0016] By adopting the above technical solution, the forklift of the utility model has the following beneficial effects:
[0017] The lifting door frame in the utility model can further expand the door frame lifting stroke of the forklift, has a side moving function, can conveniently and efficiently control the left and right horizontal moving function of the front end accessories of the forklift, and is particularly suitable for loading and unloading goods on high shelves. BRIEF DESCRIPTION OF DRAWINGS
[0018] The utility model will be further described in connection with the drawings and embodiments.
[0019] Figure 1 It is a structural schematic view of the utility model;
[0020] Figure 2 It is a structural schematic view of the outer door frame in the utility model;
[0021] Figure 3 It is a structural schematic view of the inner door frame in the utility model;
[0022] Figure 4 It is Figure 1 It is a local enlarged view of A in the utility model.
[0023] Figure 5 For Figure 1 a local enlarged view at B.
[0024] Explanation of the main reference signs:
[0025] 1, outer gantry; 2, inner gantry; 3, sliding wear block; 4, lifting cylinder; 5, side shift cylinder; 6, lower hook; 7, cylinder hanging plate; 101, stand column; 1011, guide groove; 102, upper hook; 103, upper hook support plate; 104, lower hook seat; 105, lower hook support plate; 106, reinforcing plate; 107, cylinder guard groove plate; 108, cylinder seat; 201, upper cross beam; 202, lower cross beam; 203, left side beam; 204, lifting cylinder mounting hole; 205, vertical plate; 206, T-shaped beam; 207, top plate; 208, cylinder pin shaft mounting seat. DETAILED DESCRIPTION
[0026] As Figures 1-5 shown, a lifting gantry includes an outer gantry 1, an inner gantry 2, a lifting cylinder 4, and a side shift cylinder 5. The outer gantry 1 includes a stand column 101, and the stand column 101 is provided with a guide groove 1011 in the vertical direction. The outer gantry 1 is provided with the lifting cylinder 4 at the side end, and the movable end of the lifting cylinder 4 is connected with the inner gantry 2. The inner gantry 2 includes a T-shaped beam 206, which vertically slides along the guide groove 1011. The outer gantry 1 is provided with the side shift cylinder 5 through the cylinder hanging plate 7, and the guide groove 1011 is provided with a sliding wear block 3. The T-shaped beam 206 of the inner gantry 2 slides in the sliding wear block 3, thereby reducing the frictional resistance. The inner gantry 2 is driven to make lifting movement in the guide groove 1011 through the extension and contraction of the lifting cylinder 4. The side shift cylinder 5 is installed on the cylinder hanging plate 7, and when it is in an empty state, the entire gantry is driven to make left and right side shift movement through the side shift of the cylinder, so as to adjust and adapt to the position of the goods.
[0027] Further, the outer gantry 1 further includes a cylinder guard groove plate 107, a reinforcing plate 106, an upper hook support plate 103, and a lower hook support plate 105. The stand column 101 is transversely welded with the reinforcing plate 106, the upper hook support plate 103, and the lower hook support plate 105. The upper hook 102 is welded and arranged on the upper hook support plate 103. The lower hook seat 104 is welded and arranged on the lower hook support plate 105. The lower hook 6 is arranged on the lower hook seat 104. The reinforcing plate 106 is welded on the stand column 101, thereby increasing the rigidity of the outer gantry 1.
[0028] Further, the bottom end of the upper hook 102 is provided with a cylinder seat 108 for installing the side shift cylinder 5.
[0029] Further, the bottom side end of the oil cylinder protection groove plate 107 is provided with a lifting oil cylinder mounting hole 204, and the fixed end of the lifting oil cylinder 4 is connected to the lifting oil cylinder mounting hole 204 through a pin shaft.
[0030] Further, the inner door frame 2 further comprises a vertical plate 205, a top plate 207, an upper cross beam 201, a lower cross beam 202, and a left side beam 203, the top end of the vertical plate 205 is connected to the top plate 207, and the outer side end of the vertical plate 205 is connected to a T-shaped beam 206, the upper cross beam 201, the lower cross beam 202, and the left side beam 203 form a fork frame structure, which can be hung with a matched accessory or a fork, and can realize the functions of loading, grabbing or clamping of goods.
[0031] Further, the bottom end of the top plate 207 is provided with an oil cylinder pin shaft mounting seat 208, and the movable end of the lifting oil cylinder 4 is connected to the oil cylinder pin shaft mounting seat 208 through a pin shaft.
[0032] Further, the lower hook seat 104 is symmetrically arranged and located at the bottom end of the side shift oil cylinder 5.
[0033] Further, the lifting oil cylinder 4 is provided with two.
[0034] Further, the sliding wear-resistant block 3 is made of wear-resistant plastic material and protects the T-shaped beam 206.
[0035] Further, the side shift oil cylinder 5 comprises a cylinder barrel and a piston rod, the cylinder barrel is driven by a hydraulic system to move left and right on the piston rod, and the piston rod is connected to the oil cylinder seat 108.
[0036] The fixed end of the lifting oil cylinder 4 is connected to the outer door frame 1, the movable end is connected to the inner door frame 2, the hydraulic system of the forklift drives the oil cylinder to extend and retract, thereby driving the T-shaped beam 206 of the inner door frame 2 to move up and down in the guide groove 1011 of the outer door frame 1.
[0037] The above is only a preferred embodiment of the present application, and therefore cannot limit the scope of the present application, that is, equivalent changes and modifications made according to the scope and content of the present application should still be within the scope of the present application.
Claims
1. A hoisting gantry, characterized in that, The system includes an outer mast, an inner mast, a lifting cylinder, and a side-shifting cylinder. The outer mast includes a column with a guide groove along the vertical direction. A lifting cylinder is installed on the side of the outer mast, and the movable end of the lifting cylinder is connected to the inner mast. The inner mast includes a T-beam that slides vertically along the guide groove. The side-shifting cylinder is mounted on the outer mast via a cylinder mounting plate. A sliding wear-resistant block is installed in the guide groove. The outer gantry also includes a cylinder guard plate, a reinforcing plate, an upper hook support plate, and a lower hook support plate. The column is horizontally welded with a reinforcing plate, an upper hook support plate, and a lower hook support plate. An upper hook is welded onto the upper hook support plate, and a lower hook seat is welded onto the lower hook support plate. A lower hook is installed on the lower hook seat.
2. The hoisting gantry according to claim 1, characterized in that, The bottom end of the upper hook is provided with a cylinder seat for mounting the side-shifting cylinder.
3. The hoisting gantry according to claim 1, characterized in that, The bottom side of the cylinder guard plate is provided with a lifting cylinder mounting hole, and the fixed end of the lifting cylinder is connected to the lifting cylinder mounting hole by a pin.
4. The hoisting gantry according to claim 1, characterized in that, The inner mast also includes an upright plate, a top plate, an upper crossbeam, a lower crossbeam, and a left side beam. The top of the upright plate is connected to the top plate, and a T-shaped beam is connected to the outer end of the upright plate. The upper crossbeam, the lower crossbeam, and the left side beam together form a forklift frame structure.
5. The hoisting gantry according to claim 4, characterized in that, The bottom end of the top plate is provided with a cylinder pin mounting seat, and the movable end of the lifting cylinder is connected to the cylinder pin mounting seat through a pin.
6. The hoisting gantry according to claim 1, characterized in that, The lower hook seats are symmetrically arranged and located at the bottom of the side-shifting cylinder.
7. The hoisting gantry according to claim 1, characterized in that, Two lifting cylinders are provided.
8. The hoisting gantry according to claim 1, characterized in that, The sliding wear-resistant block is made of wear-resistant plastic.
9. The hoisting gantry according to claim 2, characterized in that, The lateral displacement cylinder includes a cylinder barrel and a piston rod. The cylinder barrel is driven by a hydraulic system to move left and right on the piston rod, and the piston rod is connected to the cylinder seat.