Supporting arm anti-torsion structure of multifunctional plane lifting appliance

Abstract

The utility model relates to the technical field of torsion resistance of supporting arms of plane lifting appliances, in particular to a torsion resistance structure of a supporting arm of a multifunctional plane lifting appliance, which can effectively enhance the torsion resistance of the supporting arm, improve the connection stability of the supporting arm and a stand column and improve the practicability. Comprising a stand column, an I-shaped beam supporting arm is fixedly connected to the top end of the stand column, a rib plate is fixedly welded between the right end of the stand column and the bottom end of the I-shaped beam supporting arm, a T-shaped groove is formed in a top base, the top base is arranged on the I-shaped beam supporting arm in a sleeving mode through matching of the T-shaped groove, and a fixing bolt is screwed to the top of the top base; the left side and the right side of the left connecting base and the left side and the right side of the right connecting base are each provided with two sets of connecting bolts in a screwed mode, the top base and the right connecting base are each fixedly provided with two sets of threaded connecting columns in a front-back symmetry mode, the two sets of threaded connecting columns on the front side and the two sets of threaded connecting columns on the rear side are each sleeved with an anti-torque pressing plate, and each set of threaded connecting columns is provided with a locking nut in a screwed mode. And the locking nut is pressed on the anti-torsion pressing plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plane lifting appliance support arm torsion resistance, especially to a kind of support arm torsion resistance structure of multifunctional plane lifting appliance. BACKGROUND

[0002] The use of plane lifting appliance can ensure the stability in hoisting process, and is suitable for various complex hoisting tasks, which is usually composed of metal structural members, adopts high-quality alloy steel material, and is processed by special process to ensure its high performance and low weight characteristics, in addition, plane lifting appliance also has the advantages of small volume, high strength, light weight, easy to use, easy to store, etc., so it has been widely applied in various fields.

[0003] Plane lifting appliance is generally composed of stand, support arm and electric hoist, in the process of hoisting object, support arm is easy to bear torsional force due to the swing in the process of object hoisting, in order to enhance the torsional resistance of support arm in prior art, rib plate is usually welded between stand and support arm, but this way, in actual, due to the relatively simple structure, the torsional resistance of support arm is poor, which affects the stability of the connection between support arm and stand, and the practicability is insufficient. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a kind of support arm torsion resistance structure of multifunctional plane lifting appliance, which can effectively enhance the torsional resistance of support arm, improve the stability of the connection between support arm and stand, and improve practicability.

[0005] TECHNICAL SCHEME

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of support arm torsion resistance structure of multifunctional plane lifting appliance, including stand and torsion resistance component, the top end of the stand is fixedly connected with I-beam support arm, rib plate is fixedly welded between the right end of the stand and the bottom end of I-beam support arm, the torsion resistance component includes top seat, left connecting seat and right connecting seat, T-shaped groove is formed in the top seat, the top seat is fitted on I-beam support arm through the cooperation of T-shaped groove, fixed bolt is screwed on the top of the top seat, fixed screw hole is arranged in the top end of I-beam support arm, the fixed bolt is screwed in the fixed screw hole, positioning bolt is screwed on the left connecting seat and the right connecting seat, positioning screw hole is symmetrically arranged at the position close to rib plate on the left and right ends of the stand, the left connecting seat and the right connecting seat are symmetrically fixedly fitted on the stand through the cooperation of positioning bolt and positioning screw hole, two groups of connecting bolts are screwed on the left and right sides of the left connecting seat and the right connecting seat, two groups of threaded connecting columns are fixedly arranged on the top seat and the right connecting seat, anti-torsion pressing plate is fitted on the front and rear two groups of threaded connecting columns, locking nut is screwed on each threaded connecting column, and the locking nut is pressed on the anti-torsion pressing plate.

[0007] Preferably, a transverse positioning plate is fixedly connected to the I-beam support arm, and the transverse positioning plate is located to the right of the fixing screw hole.

[0008] Preferably, a vertical positioning plate is fixedly sleeved on the column, and the vertical positioning plate is positioned above the positioning screw hole.

[0009] Preferably, fastening pads are fixedly connected to both sides of the left side of the right connecting seat.

[0010] Preferably, all four sets of locking nuts are anti-loosening nuts.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, two positioning screw holes are opened at appropriate positions on the column, and a fixing screw hole is opened at an appropriate position on the top of the I-beam support arm. Then, the top seat is put onto the I-beam support arm, and the fixing bolt is screwed into the fixing screw hole to fix the position of the top seat. Then, the left connecting seat and the right connecting seat are installed onto the column by the cooperation of the positioning bolt and the positioning screw hole, and the left connecting seat and the right connecting seat are fixedly connected together by the connecting bolt. Finally, the anti-torsion pressure plate is put onto the threaded connecting column, and the anti-torsion pressure plate is pressed and fixed by tightening the locking nut. Through the anti-torsion pressure plates on the front and rear sides of the column and the I-beam support arm, the anti-torsion capacity of the I-beam support arm is further improved. If the anti-torsion pressure plate is bent, it can be removed and replaced to ensure its good anti-torsion performance, improve the stability of the connection between the support arm and the column, and improve practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0013] Figure 2 This is an isometric structural diagram of the anti-torsion component in this utility model;

[0014] Figure 3 This is a schematic diagram of the left-side axonometric structure of the anti-torsion component in this utility model;

[0015] Figure 4 This is a partial isometric structural diagram of the connection between the column and the I-beam support arm in this utility model;

[0016] The following are labels in the attached diagram: 1. Column; 2. I-beam support arm; 3. Rib plate; 4. Top seat; 5. T-slot; 6. Fixing bolt; 7. Fixing screw hole; 8. Left connecting seat; 9. Right connecting seat; 10. Positioning bolt; 11. Positioning screw hole; 12. Connecting bolt; 13. Threaded connecting column; 14. Anti-torsion pressure plate; 15. Locking nut; 16. Horizontal positioning plate; 17. Vertical positioning plate; 18. Fastening rubber pad. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0018] Example

[0019] Please see Figures 1-4 This utility model discloses a torsion-resistant support arm structure for a multifunctional planar lifting device, comprising a column 1, an I-beam support arm 2 fixedly connected to the top of the column 1, a rib plate 3 fixedly welded between the right end of the column 1 and the bottom end of the I-beam support arm 2, a T-slot 5 on the top seat 4, the top seat 4 fitting onto the I-beam support arm 2 through the T-slot 5, a fixing bolt 6 screwed onto the top of the top seat 4, a fixing screw hole 7 on the top of the I-beam support arm 2, the fixing bolt 6 screwed into the fixing screw hole 7, and screws on both the left connecting seat 8 and the right connecting seat 9. There are positioning bolts 10. Positioning screw holes 11 are symmetrically provided at both ends of the column 1 near the rib plate 3. The left connecting seat 8 and the right connecting seat 9 are symmetrically fixed to the column 1 through the cooperation of the positioning bolts 10 and the positioning screw holes 11. Two sets of connecting bolts 12 are screwed onto both sides of the left connecting seat 8 and the right connecting seat 9. Two sets of threaded connecting columns 13 are symmetrically fixed on the top seat 4 and the right connecting seat 9. Anti-torsion pressure plates 14 are fitted onto the two sets of threaded connecting columns 13 on the front and two sets on the rear. Each threaded connecting column 13 is screwed with a locking nut 15, which presses against the anti-torsion plate 14. In use, two positioning screw holes 11 are made at appropriate positions on the column 1, and a fixing screw hole 7 is made at an appropriate position on the top of the I-beam support arm 2. Then, the top seat 4 is fitted onto the I-beam support arm 2, and the fixing bolts 6 are screwed into the fixing screw holes 7 to fix the position of the top seat 4. Next, the left connecting seat 8 and the right connecting seat 9 are installed onto the column 1 through the cooperation of the positioning bolts 10 and the positioning screw holes 11. Bolt 12 is used to fix the left connecting seat 8 and the right connecting seat 9 together. Finally, the anti-torsion pressure plate 14 is put onto the threaded connecting column 13, and the anti-torsion pressure plate 14 is pressed and fixed by tightening the locking nut 15. The anti-torsion pressure plate 14 on the front and rear sides of the column 1 and the I-beam support arm 2 further improves the anti-torsion capacity of the I-beam support arm 2. If the anti-torsion pressure plate 14 is bent, it can be removed and replaced to ensure its good anti-torsion performance, improve the stability of the connection between the support arm and the column, and improve practicality.

[0020] A transverse positioning plate 16 is fixedly connected to the I-beam support arm 2. The transverse positioning plate 16 is located to the right of the fixing screw hole 7. By setting the transverse positioning plate 16, the top seat 4 can be positioned when it is installed, so that the fixing bolt 6 on the top seat 4 can be aligned with the fixing screw hole 7 more quickly, which is convenient for installation.

[0021] A vertical positioning plate 17 is fixedly sleeved on the column 1, and the vertical positioning plate 17 is located above the positioning screw hole 11. By setting the vertical positioning plate 17, when installing the left connecting seat 8 and the right connecting seat 9, the top ends of the left connecting seat 8 and the right connecting seat 9 can be abutted against the vertical positioning plate 17, which facilitates the positioning of the left connecting seat 8 and the right connecting seat 9, and makes the positioning bolt 10 more quickly aligned with the positioning screw hole 11, thus improving the convenience of installation.

[0022] Both sides of the left side of the right connecting seat 9 are fixedly connected with fastening rubber pads 18; by setting fastening rubber pads 18, the left connecting seat 8 and the right connecting seat 9 are connected more tightly and reliably when they are connected by connecting bolts 12.

[0023] All four sets of locking nuts 15 use anti-loosening nuts; by using anti-loosening nuts, the locking nuts 15 are less likely to loosen after being tightened.

[0024] This utility model discloses a multifunctional planar lifting arm anti-torsion structure. Its working principle is as follows: Two positioning screw holes 11 are made at appropriate positions on the column 1, and a fixing screw hole 7 is made at an appropriate position on the top of the I-beam support arm 2. Then, the top seat 4 is fitted onto the I-beam support arm 2, and the fixing bolt 6 is screwed into the fixing screw hole 7 to fix the position of the top seat 4. Next, the left connecting seat 8 and right connecting seat 9 are installed onto the column 1 through the cooperation of the positioning bolt 10 and the positioning screw hole 11. The left connecting seat 8 and right connecting seat 9 are then fixedly connected together by the connecting bolt 12. Finally, the anti-torsion pressure plate 14 is fitted onto the threaded connecting column 13, and the anti-torsion pressure plate 14 is pressed and fixed by tightening the locking nut 15. Through the anti-torsion pressure plates 14 on the front and rear sides of the column 1 and the I-beam support arm 2, the anti-torsion capacity of the I-beam support arm 2 is further improved. If the anti-torsion pressure plate 14 bends, it can be removed and replaced to ensure its good anti-torsion performance.

[0025] The anti-torsion structure of the support arm of the multifunctional planar lifting device of this utility model can be installed, connected or set in a common mechanical way, and can be implemented as long as it can achieve its beneficial effect.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A torsion-resistant structure for a support arm of a multifunctional planar spreader, comprising a stand column (1), a top end of the stand column (1) being fixedly connected with an I-beam support arm (2), a rib plate (3) being fixedly welded between a right end of the stand column (1) and a bottom end of the I-beam support arm (2), characterized in that, The anti-twist component further comprises a top base (4), a left connecting base (8) and a right connecting base (9), the top base (4) is provided with a T-shaped slot (5), the top base (4) is sleeved on the I-beam support arm (2) through the cooperation of the T-shaped slot (5), the top base (4) is provided with a fixing bolt (6) on the top, the I-beam support arm (2) is provided with a fixing screw hole (7) at the top end, the fixing bolt (6) is screwed in the fixing screw hole (7), the left connecting base (8) and the right connecting base (9) are provided with a positioning bolt (10), the left and right ends of the stand (1) are symmetrically provided with a positioning screw hole (11) near the rib plate (3), the left connecting base (8) and the right connecting base (9) are symmetrically fixed and sleeved on the stand (1) through the cooperation of the positioning bolt (10) and the positioning screw hole (11), the left and right sides of the left connecting base (8) and the right connecting base (9) are provided with two groups of connecting bolts (12), the top base (4) and the right connecting base (9) are symmetrically provided with two groups of threaded connecting columns (13) from front to back, the front and rear two groups of threaded connecting columns (13) are sleeved with anti-twist pressing plates (14), each group of threaded connecting columns (13) is provided with a locking nut (15), and the locking nut (15) is pressed on the anti-twist pressing plate (14). The I-beam support arm (2) is fixedly connected with a transverse positioning plate (16), and the transverse positioning plate (16) is located to the right of the fixing screw hole (7).

2. The torsion-resistant structure of the support arm of a multifunctional planar spreader according to claim 1, characterized in that, The stand (1) is fixedly sleeved with a vertical positioning plate (17), and the vertical positioning plate (17) is located above the positioning screw hole (11).

3. The torsion-resistant structure of the support arm of a multifunctional planar spreader according to claim 2, characterized in that, The right connecting base (9) is fixedly connected with a fastening rubber pad (18) on the left side.

4. The torsion-resistant structure of the support arm of a multifunctional planar spreader according to claim 3, characterized in that, The four groups of locking nuts (15) are all anti-loose nuts.

5. The torsion-resistant structure of the support arm of a multifunctional planar spreader according to claim 4, characterized in that, ​

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