Crank arm type aerial work platform oil cylinder structure

Abstract

The utility model relates to the related technical field of aerial work platforms, in particular to a crank arm type aerial work platform oil cylinder structure which comprises an oil cylinder body, the output end of the oil cylinder body is connected with a piston rod in a sliding mode, and the bottom end of the oil cylinder body is fixedly connected with an installation disc. The front face, the back face, the left side and the right side of the installation disc are fixedly connected with installation assemblies, the front face and the back face of the installation disc are each in threaded connection with two limiting assemblies, and the surface of the oil cylinder body is in lap joint with a reinforcing assembly. According to the crank arm type aerial work platform oil cylinder structure, through the arrangement of the limiting assembly and the reinforcing assembly, when the crank arm type aerial work platform oil cylinder structure is used, the extending direction of the piston rod can be locked through four positioning sleeves, a positioning rod, a circular ring, a connecting rod and a positioning lantern ring, and it is ensured that after the oil cylinder body is used for a long time, the piston rod cannot be damaged; the extending direction of the piston rod does not deviate greatly, it is guaranteed that the crank arm can be bent and lifted normally, the protection effect on the oil cylinder body is improved, and the service life of the oil cylinder body is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to high altitude operation platform related technical field especially, it relates to a curved arm type high altitude operation platform oil cylinder structure. BACKGROUND

[0002] High altitude operation platform can be divided into straight arm type and curved arm type according to arm spread form, curved arm type high altitude operation platform adopts multistage folding arm combination mode design, flexible and convenient, can cross certain obstacle, carries out multi-point operation at one place.Safety is better, and it is convenient to move, but the cost is tall.Curved arm high altitude operation platform car is widely suitable for being used in the installation maintenance and climbing operation of city management work, electric power, street lamp, advertisement, communication, taking sight, garden, traffic, wharf, airport port, large-scale mining company etc., and it is a common high altitude operation.

[0003] The existing high altitude operation platform curved arm is driven by the oil cylinder between two curved arms in the use process, the oil cylinder is installed on the curved arm, after long time use, since the piston rod is driven to stretch out after the oil cylinder drives, the curved arm unfolds, the pressure generated when the curved arm unfolds will drive the piston rod to deform, thereby the piston rod stretching out direction can be deviated after long time use, the service life of the oil cylinder is affected, and there is certain improvement space. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides a curved arm type high altitude operation platform oil cylinder structure, and can solve the problem that the piston rod stretching out direction can be deviated after long time use of the existing curved arm oil cylinder under the influence of curved arm pressure.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A curved arm type high altitude operation platform oil cylinder structure, including the oil cylinder body, the surface of oil cylinder body is equipped with four locking screw holes, the output end of oil cylinder body is connected with piston rod slidingly, the top end of piston rod is fixedly connected with articulated assembly, the bottom end of oil cylinder body is fixedly connected with mounting disc, the front and back and left and right sides of mounting disc are all fixedly connected with mounting assembly, the front and back of mounting disc are all screw-connected with two limiting assemblies, the surface of oil cylinder body is overlapped with reinforcing assembly;

[0009] The limiting assembly includes dismounting structure and limiting structure, and the dismounting structure is used for dismounting and replacing the limiting structure.

[0010] Preferably, the hinged assembly comprises a hinge frame, a threaded hole is formed in the left side of the hinge frame, a locking bolt is threadedly connected to the inner wall of the threaded hole, and a threaded slot is formed in the right inner wall of the hinge frame and matched with the locking bolt.

[0011] Preferably, the mounting assembly comprises a mounting block, and mounting bolts are threadedly connected to the upper surface of the mounting block.

[0012] Preferably, the dismounting structure comprises positioning bolts, four positioning holes are formed in the upper surface of the mounting disc, positioning blocks are inserted into the inner walls of the four positioning holes, threaded holes are formed in the front surfaces of the positioning blocks, the positioning bolts extend into the interior of the positioning holes and are matched with the threaded holes.

[0013] Preferably, the limiting structure comprises a positioning sleeve, the bottom end of the positioning sleeve is fixedly connected to the upper surface of the positioning block, a circular hole is formed in the top end of the positioning sleeve, a positioning rod is slidably connected to the inner wall of the circular hole, a limiting screw hole is formed in the surface of the positioning rod, a positioning collar is fixedly connected to the surface of the piston rod, four connecting rods are fixedly connected to the surface of the positioning collar, and a circular ring is fixedly connected to the end of each connecting rod away from the positioning collar, and a circular hole is formed in the upper surface of the circular ring.

[0014] Preferably, the top end of the positioning rod is slidably connected to the inner wall of the circular hole, locking bolts are threadedly connected to the surface of the circular ring, the locking bolts extend into the interior of the circular hole and are threadedly connected to the inner wall of the limiting screw hole.

[0015] Preferably, the reinforcing assembly comprises a reinforcing disc, four circular through holes are formed in the upper surface of the reinforcing disc, the four circular through holes are matched with the four positioning sleeves respectively, and reinforcing bolts are threadedly connected to the front surface, the back surface and the left and right sides of the reinforcing disc and are matched with the locking screw holes.

[0016] Compared with the prior art, the curved arm type high-altitude operation platform oil cylinder structure has the advantages that: the four positioning sleeves, the positioning rod, the circular ring, the connecting rod and the positioning collar are used to lock the extending direction of the piston rod during use, so that the extending direction of the piston rod cannot be greatly deviated after the oil cylinder body is used for a long time, the curved arm can be normally bent and lifted, the reinforcing assembly can lock the positions between the four positioning sleeves and the oil cylinder body and limit the positions of the four positioning rods from the outside, the limiting effect of the piston rod is further improved, the protection effect of the oil cylinder body is improved, and the service life of the oil cylinder body is prolonged, the four limiting structures can be individually dismounted during use through the arrangement of the dismounting structure, so that the single limiting structure can be conveniently replaced, the entire limiting structure does not need to be replaced, and the flexibility is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a three-dimensional structure schematic view of the utility model mounting disc;

[0019] Figure 3 It is a three-dimensional structure schematic view of the utility model limiting structure;

[0020] Figure 4 It is a three-dimensional structure schematic view of the utility model reinforcing assembly.

[0021] In the drawing: 1, oil cylinder body; 2, piston rod; 3, hinged assembly; 4, mounting disc; 5, mounting assembly; 6, limiting assembly; 7, reinforcing assembly; 61, dismounting structure; 62, limiting structure; 301, hinged frame; 302, locking bolt; 501, mounting block; 502, mounting bolt; 6101, positioning bolt; 6102, positioning hole; 6103, positioning block; 6201, positioning sleeve; 6202, positioning rod; 6203, positioning sleeve ring; 6204, connecting rod; 6205, circular ring; 6206, locking bolt; 701, reinforcing disc; 702, circular through hole; 703, reinforcing bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a curved arm type aerial work platform oil cylinder structure, including oil cylinder body 1, four locking screw holes are set on the surface of oil cylinder body 1, piston rod 2 is slidably connected to the output end of oil cylinder body 1, the top end of piston rod 2 is fixedly connected with hinged assembly 3, mounting disc 4 is fixedly connected to the bottom end of oil cylinder body 1, mounting assembly 5 is fixedly connected to the front and back and left and right sides of mounting disc 4, two limiting assemblies 6 are threadedly connected to the front and back of mounting disc 4, reinforcing assembly 7 is overlapped on the surface of oil cylinder body 1;

[0024] Limiting assembly 6 includes dismounting structure 61 and limiting structure 62, and dismounting structure 61 is used to remove and replace limiting structure 62.

[0025] Further, the hinged assembly 3 comprises a hinged frame 301, a threaded hole is formed in the left side of the hinged frame 301, a locking bolt 302 is threadedly connected to the inner wall of the threaded hole, and a threaded groove matched with the locking bolt 302 is formed in the right inner wall of the hinged frame 301.

[0026] Further, the mounting assembly 5 comprises a mounting block 501, and the upper surface of the mounting block 501 is threadedly connected with a mounting bolt 502, and the oil cylinder body 1 is connected with the curved arm through the mounting block 501 and the mounting bolt 502.

[0027] Further, the dismounting structure 61 comprises a positioning bolt 6101, four positioning holes 6102 are formed in the upper surface of the mounting disc 4, and a positioning block 6103 is inserted into the inner wall of each of the four positioning holes 6102, a threaded hole is formed in the front surface of the positioning block 6103, the positioning bolt 6101 extends into the interior of the positioning hole 6102 and is matched with the threaded hole, the positioning block 6103 can be inserted into the positioning hole 6102 and locked by the positioning bolt 6101, when the limiting structure 62 is damaged, only the positioning bolt 6101 needs to be pulled out to dismount and replace the single limiting structure 62, without the need to replace the entire limiting structure 62, and the flexibility is high.

[0028] Further, the limiting structure 62 comprises a positioning sleeve 6201, the bottom end of the positioning sleeve 6201 is fixedly connected with the upper surface of the positioning block 6103, a circular hole is formed in the top end of the positioning sleeve 6201, a positioning rod 6202 is slidably connected to the inner wall of the circular hole, a limiting screw hole is formed in the surface of the positioning rod 6202, a positioning sleeve ring 6203 is fixedly connected to the surface of the piston rod 2, four connecting rods 6204 are fixedly connected to the surface of the positioning sleeve ring 6203, a circular ring 6205 is fixedly connected to the end of each connecting rod 6204 away from the positioning sleeve ring 6203, and a circular hole is formed in the upper surface of the circular ring 6205.

[0029] Further, the top end of the positioning rod 6202 is slidably connected to the inner wall of the circular hole, a locking bolt 6206 is threadedly connected to the surface of the circular ring 6205, the locking bolt 6206 extends into the interior of the circular hole and is threadedly connected to the inner wall of the limiting screw hole, and the positioning rod 6202 can cooperate with the circular ring 6205, the connecting rod 6204 and the positioning sleeve ring 6203 to keep the extending direction of the piston rod 2 fixed, so that the extending direction of the piston rod 2 will not be deviated after the oil cylinder body 1 is used for a long time, thereby prolonging the service life of the oil cylinder body 1.

[0030] Furthermore, the reinforcement component 7 includes a reinforcement plate 701. The upper surface of the reinforcement plate 701 has four circular through holes 702, which are respectively adapted to four positioning sleeves 6201. The front, back and left and right sides of the reinforcement plate 701 are threaded with reinforcement bolts 703, which are adapted to locking screw holes. The reinforcement bolts 703 can fix the reinforcement plate 701 to the surface of the cylinder body 1. At the same time, the four circular through holes 702 can lock the position of the four positioning sleeves 6201. Thus, the reinforcement plate 701 can lock the position between the four positioning sleeves 6201 and the cylinder body 1, further ensuring that the direction of the piston rod 2 will not deviate after it extends, and providing better protection for the cylinder body 1.

[0031] Working principle: First, the cylinder body 1 is installed on the large crank arm using mounting block 501 and mounting bolt 502. The hinge frame 301 is connected to the small crank arm via locking pin 302. During normal use, the cylinder body 1 starts, causing the piston rod 2 to extend, which in turn causes the small crank arm to unfold via the hinge frame 301. During the extension of the piston rod 2, the piston rod 2 can simultaneously extend the positioning sleeve 6203. At this time, the positioning sleeve 6203 can drive the positioning rod 6202 to extend from the positioning sleeve 6201 via four connecting rods 6204 and a circular ring 6205. The four positioning sleeves 6201, positioning rod 6202, circular ring 6205, and connecting rod 6204 can limit the extension direction of the piston rod 2, thereby ensuring that the cylinder body 1 can maintain its position even after long-term use. The extension direction of the piston rod 2 will not deviate significantly, thus preventing deviation in the unfolding direction of the small crank arm and improving the service life of the cylinder body 1. Furthermore, the limiting structure 62 is assembled with the mounting plate 4 via the disassembly structure 61. If the limiting structure 62 is damaged, it can be removed using the positioning bolts 6101 and positioning blocks 6103, facilitating the replacement of a single limiting structure 62 without replacing the entire limiting structure 62, thus increasing flexibility. In addition, the reinforcing plate 701 can lock the four positioning sleeves 6201, ensuring that the positions of the four positioning sleeves 6201 and the cylinder body 1 do not shift. Therefore, it can be ensured that the extension direction of the four positioning rods 6202 remains consistent after the piston rod 2 extends, thereby improving the protection effect of the cylinder body 1.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A knuckle boom aerial platform oil cylinder structure, comprising an oil cylinder body (1), the surface of the oil cylinder body (1) is provided with four locking screw holes, characterized in that: The output end of the oil cylinder body (1) is slidably connected with a piston rod (2), the top end of the piston rod (2) is fixedly connected with a hinged assembly (3), the bottom end of the oil cylinder body (1) is fixedly connected with a mounting disc (4), the front face, the back face and the left and right sides of the mounting disc (4) are all fixedly connected with mounting assemblies (5), the front face and the back face of the mounting disc (4) are both threadedly connected with two limiting assemblies (6), and the surface of the oil cylinder body (1) is overlapped with a reinforcing assembly (7). The limiting assembly (6) comprises a dismounting structure (61) and a limiting structure (62), and the dismounting structure (61) is used for dismounting and replacing the limiting structure (62).

2. The boom cylinder structure of the aerial work platform according to claim 1, characterized in that: The hinged assembly (3) comprises a hinged frame (301), a threaded hole is formed in the left side of the hinged frame (301), a locking bolt (302) is threadedly connected to the inner wall of the threaded hole, and a threaded groove matched with the locking bolt (302) is formed in the right inner wall of the hinged frame (301).

3. The knuckle type aerial platform cylinder structure of claim 1, wherein: The mounting assembly (5) comprises a mounting block (501), and the upper surface of the mounting block (501) is threadedly connected with a mounting bolt (502).

4. The knuckle type aerial platform oil cylinder structure of claim 1, wherein: The dismounting structure (61) comprises a positioning bolt (6101), four positioning holes (6102) are formed in the upper surface of the mounting disc (4), positioning blocks (6103) are inserted into the inner walls of the four positioning holes (6102), a threaded hole is formed in the front face of each positioning block (6103), and the positioning bolt (6101) extends into the positioning hole (6102) and is matched with the threaded hole.

5. The knuckle type aerial platform cylinder structure of claim 4, wherein: The limiting structure (62) comprises a positioning sleeve (6201), the bottom end of the positioning sleeve (6201) is fixedly connected with the upper surface of the positioning block (6103), a circular hole is formed in the top end of the positioning sleeve (6201), a positioning rod (6202) is slidably connected to the inner wall of the circular hole, a limiting screw hole is formed in the surface of the positioning rod (6202), a positioning sleeve ring (6203) is fixedly connected to the surface of the piston rod (2), four connecting rods (6204) are fixedly connected to the surface of the positioning sleeve ring (6203), circular rings (6205) are fixedly connected to the ends of the connecting rods (6204) away from the positioning sleeve ring (6203), and a circular hole is formed in the upper surface of each circular ring (6205).

6. The knuckle-type aerial platform cylinder structure of claim 5, wherein: The top end of the positioning rod (6202) is slidably connected to the inner wall of the circular hole, a locking bolt (6206) is threadedly connected to the surface of the circular ring (6205), and the locking bolt (6206) extends into the circular hole and is threadedly connected with the inner wall of the limiting screw hole.

7. The knuckle type aerial platform cylinder structure of claim 5, wherein: The reinforcing assembly (7) comprises a reinforcing disc (701), four circular through holes (702) are formed in the upper surface of the reinforcing disc (701), the four circular through holes (702) are matched with the four positioning sleeves (6201) respectively, reinforcing bolts (703) are threadedly connected to the front face, the back face and the left and right sides of the reinforcing disc (701), and the reinforcing bolts (703) are matched with the locking screw holes.

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