阅读说明：本技术 一种起重设备垂直支腿防侧载系统 (Lateral load prevention system for vertical supporting leg of hoisting equipment ) 是由 于鹏 于义路 孔常剑 张新霞 潘小敏 陈岚 解雅梅 于 2021-09-02 设计创作，主要内容包括：本发明涉及工程吊具技术领域,尤其涉及一种起重设备垂直支腿防侧载系统,包括支腿主体与防护机构,所述支腿主体内侧设置有油缸,所述防护机构设置于油缸内侧,所述防护机构包括：定位杆,所述油缸底端设置有活塞杆,所述油缸中部内侧开设有滑槽,所述定位杆穿设于滑槽内侧,用于固定活塞杆；橡胶块,所述橡胶块套设于定位杆表面,用于保护定位杆,进而保护油缸；通过设计了防护机构,由磨损橡胶块来保护油缸内侧的密封圈,有效保护油缸,防止漏油,更换方便,减少维修成本,同时通过设计了液压杆抵住定位杆,作为副支腿,减轻活塞杆的压力,在活塞杆无力时提供支撑力,避免工程事故发生。(The invention relates to the technical field of engineering lifting appliances, in particular to a vertical supporting leg side load prevention system for hoisting equipment, which comprises a supporting leg main body and a protection mechanism, wherein an oil cylinder is arranged on the inner side of the supporting leg main body, the protection mechanism is arranged on the inner side of the oil cylinder, and the protection mechanism comprises: the piston rod is arranged at the bottom end of the oil cylinder, a sliding groove is formed in the inner side of the middle of the oil cylinder, and the positioning rod penetrates through the inner side of the sliding groove and is used for fixing the piston rod; the rubber block is sleeved on the surface of the positioning rod and used for protecting the positioning rod and further protecting the oil cylinder; through having designed protection machanism, come the inboard sealing washer of protection hydro-cylinder by wearing and tearing rubber piece, effectively protect the hydro-cylinder, prevent the oil leak, it is convenient to change, reduces cost of maintenance, supports the locating lever through having designed the hydraulic stem simultaneously, as vice landing leg, alleviates the pressure of piston rod, provides the holding power when the piston rod is powerless, avoids the engineering accident to take place.)

1. The utility model provides a perpendicular landing leg of hoisting equipment prevents side year system, includes landing leg main part (1) and protection machanism, landing leg main part (1) inboard is provided with hydro-cylinder (2), protection machanism sets up in hydro-cylinder (2) inboard, its characterized in that: the guard mechanism includes:

the piston rod (3) is arranged at the bottom end of the oil cylinder (2), a sliding groove (8) is formed in the inner side of the middle of the oil cylinder (2), and the positioning rod (7) penetrates through the inner side of the sliding groove (8) and is used for fixing the piston rod (3);

the rubber block (9) is sleeved on the surface of the positioning rod (7) and used for protecting the positioning rod (7) and further protecting the oil cylinder (2).

2. The hoisting device vertical leg anti-sideload system of claim 1, wherein: spacing groove (11) have been seted up on rubber block (9) side surface, draw-in groove (12) have been seted up to spout (8) inner wall, draw-in groove (12) inboard is provided with fixture block (14), fixture block (14) one end is run through draw-in groove (12) and is in the hydro-cylinder (2) outside, fixture block (14) opposite side is run through draw-in groove (12) and is in spacing groove (11) inboard, just draw-in groove (12) surface cover is equipped with spring (13), hydro-cylinder (2) top outside surface is provided with hydraulic stem (4).

3. The hoisting device vertical leg anti-sideload system of claim 1, wherein: the oil cylinder (2) top surface is provided with spirit level (15), spirit level (15) one side is provided with mirror (16), mirror (16) bottom is provided with fixed block (17), inside groove (18) have been seted up to fixed block (17) inboard, inside groove (18) inboard is provided with pivot (19), mirror (16) bottom and pivot (19) fixed connection, pivot (19) one side is provided with stopper (20).

4. The hoisting device vertical leg anti-sideload system of claim 2, wherein: hydraulic stem (4) bottom is provided with first tarpaulin (5), hydro-cylinder (2) bottom surface is provided with solid fixed ring (10), fixed ring (10) inboard is run through in locating lever (7), gu fixed ring (10) bottom is provided with second tarpaulin (6).

5. The hoisting device vertical leg anti-sideload system of claim 4, wherein: the bottom end of the second waterproof cloth (6) is fixedly connected with a base (21), and the bottom end of the piston rod (3) is connected with the bottom end of the positioning rod (7) through the base (21).

6. The hoisting device vertical leg anti-sideload system of claim 5, wherein: the cross section of the base (21) is of a rectangular structure, and the bottom end of the base (21) is rotatably connected with a chassis.

7. The hoisting device vertical leg anti-sideload system of claim 6, wherein: the bottom end of the chassis is provided with a rubber pad, and the bottom end surface of the rubber pad is provided with anti-skid grains.

8. The hoisting device vertical leg anti-sideload system of claim 2, wherein: and a handle is arranged on one side of the clamping block (14), and the cross section of the handle is of a rectangular structure.

9. The hoisting device vertical leg anti-sideload system of claim 1, wherein: the number of the positioning rods (7) is eight, and the eight positioning rods (7) are distributed around the oil cylinder (2) in an annular shape at equal intervals.

10. The hoisting device vertical leg anti-sideload system of claim 3, wherein: the cross section of the limiting block (20) is of an arc-shaped structure, and anti-skid grains are formed in the surface of the limiting block (20).

Technical Field

The invention relates to the technical field of engineering lifting appliances, in particular to a side-load prevention system for a vertical supporting leg of a hoisting device.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, navigation cranes and cranes. The tire crane is mainly characterized in that: the traveling cab and the crane control cab are integrated into a whole and are formed by the evolution of a crawler crane (crawler crane), the crawler and the traveling support of the traveling mechanism are changed into a chassis with tires, the defect that a crawler plate of the crawler crane (crawler crane) damages the road surface is overcome, and the crawler crane belongs to material handling machinery and is supported by supporting legs during use. However, the existing crane support legs still have some problems;

when the crane works on a slope, the supporting leg can bear a lateral force to cause severe friction between one side of a sealing ring in the oil cylinder and the piston rod, after long-term friction, oil leakage can occur in the oil cylinder to cause weakness of the supporting leg and high maintenance cost, and therefore the vertical supporting leg side load prevention system for the hoisting equipment is provided.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a side load prevention system for a vertical supporting leg of hoisting equipment.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a perpendicular landing leg of hoisting equipment prevents side year system, includes landing leg main part and protection machanism, landing leg main part inboard is provided with the hydro-cylinder, protection machanism sets up in the hydro-cylinder inboard, protection machanism includes:

the piston rod is arranged at the bottom end of the oil cylinder, a sliding groove is formed in the inner side of the middle of the oil cylinder, and the positioning rod penetrates through the inner side of the sliding groove and is used for fixing the piston rod;

the rubber block is sleeved on the surface of the positioning rod and used for protecting the positioning rod and further protecting the oil cylinder.

Preferably, a limiting groove is formed in the surface of one side of the rubber block, a clamping groove is formed in the inner wall of the sliding groove, a clamping block is arranged on the inner side of the clamping groove, one end of the clamping block penetrates through the clamping groove and is located on the outer side of the oil cylinder, the other side of the clamping block penetrates through the clamping groove and is located on the inner side of the limiting groove, a spring is sleeved on the surface of the clamping groove, and a hydraulic rod is arranged on the surface of the outer side of the top end of the oil cylinder.

Preferably, the surface of the top end of the oil cylinder is provided with a level gauge, one side of the level gauge is provided with a mirror, the bottom end of the mirror is provided with a fixed block, an inner groove is formed in the inner side of the fixed block, a rotating shaft is arranged on the inner side of the inner groove, the bottom end of the mirror is fixedly connected with the rotating shaft, and a limiting block is arranged on one side of the rotating shaft.

Preferably, the hydraulic stem bottom is provided with first tarpaulin, hydro-cylinder bottom surface is provided with solid fixed ring, the locating lever runs through solid fixed ring inboard, gu the fixed ring bottom is provided with the second tarpaulin.

Preferably, the bottom end of the second waterproof cloth is fixedly connected with a base, and the bottom end of the piston rod is connected with the bottom end of the positioning rod through the base.

Preferably, the cross section of the base is a rectangular structure, and the bottom end of the base is rotatably connected with a chassis.

Preferably, a rubber pad is arranged at the bottom end of the chassis, and anti-skid grains are formed in the surface of the bottom end of the rubber pad.

Preferably, a handle is arranged on one side of the clamping block, and the cross section of the handle is of a rectangular structure.

Preferably, the number of the positioning rods is eight, and the eight positioning rods are annularly and equidistantly distributed around the oil cylinder.

Preferably, the cross section of the limiting block is of an arc-shaped structure, and anti-skid grains are formed in the surface of the limiting block.

Compared with the prior art, the invention can achieve the following beneficial effects:

1. the protection mechanism is designed, the rubber block is worn to protect the sealing ring on the inner side of the oil cylinder, the oil cylinder is effectively protected, oil leakage is prevented, replacement is convenient, maintenance cost is reduced, meanwhile, the hydraulic rod is designed to abut against the positioning rod to serve as an auxiliary supporting leg, pressure of the piston rod is reduced, supporting force is provided when the piston rod is weak, and engineering accidents are avoided;

2. through having designed the mirror, can see the spirit level clearly through the refraction of light in the distant place, make things convenient for the hoist to make level.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure of FIG. 2 at C;

FIG. 4 is an enlarged view of the structure at B in FIG. 1;

FIG. 5 is a schematic top view of a positioning rod according to the present invention;

wherein: 1. a leg body; 2. an oil cylinder; 3. a piston rod; 4. a hydraulic lever; 5. a first tarpaulin; 6. a second tarpaulin; 7. positioning a rod; 8. a chute; 9. a rubber block; 10. a fixing ring; 11. a limiting groove; 12. a card slot; 13. a spring; 14. a clamping block; 15. a level gauge; 16. a mirror; 17. a fixed block; 18. an inner tank; 19. a rotating shaft; 20. a limiting block; 21. a base.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-3, a vertical support leg side load prevention system for a hoisting device comprises a support leg main body 1 and a protection mechanism, wherein an oil cylinder 2 is arranged on the inner side of the support leg main body 1, the protection mechanism is arranged on the inner side of the oil cylinder 2, and the protection mechanism comprises:

the piston rod 3 is arranged at the bottom end of the oil cylinder 2, the sliding groove 8 is formed in the inner side of the middle of the oil cylinder 2, and the positioning rod 7 penetrates through the inner side of the sliding groove 8 and is used for fixing the piston rod 3; the rubber block 9 is sleeved on the surface of the positioning rod 7 and used for protecting the positioning rod 7 and further protecting the oil cylinder 2;

a limiting groove 11 is formed in the surface of one side of the rubber block 9, a clamping groove 12 is formed in the inner wall of the sliding groove 8, a clamping block 14 is arranged on the inner side of the clamping groove 12, one end of the clamping block 14 penetrates through the clamping groove 12 and is located on the outer side of the oil cylinder 2, the other side of the clamping block 14 penetrates through the clamping groove 12 and is located on the inner side of the limiting groove 11, a spring 13 is sleeved on the surface of the clamping groove 12, and a hydraulic rod 4 is arranged on the surface of the outer side of the top end of the oil cylinder 2;

when the hydraulic control device is used, the piston rod 3 slides downwards on the inner side of the oil cylinder 2, the base 21 at the bottom end of the piston rod 3 drives the positioning rod 7 to slide on the inner side of the rubber block 9, and after the length of the piston rod 3 is adjusted, the hydraulic rod 4 is controlled to descend to abut against the top end of the positioning rod 7; when the rubber block 9 needs to be detached and maintained, the clamping block 14 is pulled, the spring 13 is stressed to contract, the tail end of the clamping block 14 leaves the inner side of the limiting groove 11, then the rubber block 9 is upwards taken out, slides out from the top end of the positioning rod 7, and is replaced with a new rubber block 9; through having designed protection machanism, come the inboard sealing washer of protection hydro-cylinder 2 by wearing and tearing rubber block 9, effectively protect hydro-cylinder 2, prevent the oil leak, it is convenient to change, reduces cost of maintenance, supports locating lever 7 through having designed hydraulic stem 4 simultaneously, as vice landing leg, alleviates piston rod 3's pressure, provides the holding power when piston rod 3 is powerless, avoids the engineering occurence of failure.

In other embodiments, as shown in fig. 1 and 4, the embodiment discloses that, a level 15 is disposed on the top surface of the oil cylinder 2, a mirror 16 is disposed on one side of the level 15, a fixed block 17 is disposed at the bottom end of the mirror 16, an inner groove 18 is disposed inside the fixed block 17, a rotating shaft 19 is disposed inside the inner groove 18, the bottom end of the mirror 16 is fixedly connected with the rotating shaft 19, and a limit block 20 is disposed on one side of the rotating shaft 19;

when the mirror is used, the mirror 16 is pushed to rotate around the rotating shaft 19, and the limiting block 20 and the rotating shaft 19 rub until the mirror is adjusted to a proper position; through having designed mirror 16, can see spirit level 15 clearly through the refraction of light at a distance, make things convenient for the hoist to make level.

In other embodiments, as shown in fig. 1, the embodiment discloses that a first waterproof cloth 5 is arranged at the bottom end of a hydraulic rod 4, a fixing ring 10 is arranged on the surface of the bottom end of an oil cylinder 2, a positioning rod 7 penetrates through the inner side of the fixing ring 10, and a second waterproof cloth 6 is arranged at the bottom end of the fixing ring 10; through having designed first tarpaulin 5 and second tarpaulin 6, prevent that rainwater dust from getting into hydraulic stem 4 and 3 surfaces of piston rod, the protection landing leg is normally gone up and down.

In other embodiments, as shown in fig. 1, the bottom end of the second waterproof cloth 6 is fixedly connected to a base 21, and the bottom end of the piston rod 3 is connected to the bottom end of the positioning rod 7 through the base 21; through having designed 6 bottom fixedly connected with bases 21 of second tarpaulin, the bottom of piston rod 3 is passed through base 21 with 7 bottoms of locating lever and is connected piston rod 3 and locating lever 7.

In other embodiments, as shown in fig. 1, the cross section of the base 21 is a rectangular structure, and the bottom end of the base 21 is rotatably connected to a chassis; the cross section of the base 21 is designed to be a rectangular structure, and the bottom end of the base 21 is rotatably connected with a chassis, so that the stress area of the supporting leg is increased.

In other embodiments, as shown in the drawings, the bottom end of the chassis is provided with a rubber pad, and the surface of the bottom end of the rubber pad is provided with anti-skid grains; through having designed the chassis bottom and being provided with the rubber pad, the anti-skidding line has been seted up to rubber pad bottom surface, plays anti-skidding effect.

In other embodiments, as shown in fig. 3, in the embodiment, a handle is disposed on one side of the fixture block 14, and the cross section of the handle is a rectangular structure; through having designed fixture block 14 one side and being provided with the handle, the handle cross section sets up to rectangular structure, conveniently extracts fixture block 14.

In other embodiments, as shown in fig. 5, the number of the positioning rods 7 is eight, and the eight positioning rods 7 are annularly and equidistantly distributed around the oil cylinder 2; the number of the positioning rods 7 is designed to be eight, and the eight positioning rods 7 are distributed around the oil cylinder 2 in an annular equidistant mode, so that the piston rod 3 keeps lifting linearly.

In other embodiments, as shown in fig. 4, the cross section of the limiting block 20 is an arc-shaped structure, and the surface of the limiting block 20 is provided with anti-slip lines; the cross section of the limiting block 20 is designed to be an arc-shaped structure, anti-slip lines are arranged on the surface of the limiting block 20, and the rotating shaft 19 is limited to rotate automatically, so that the mirror 16 can incline to one side.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.