CN-224226612-U - Safety protection device for crane maintenance

Abstract

The utility model relates to the technical field of protection devices, and discloses a safety protection device for crane maintenance, which comprises a base, wherein foot blocking blocks are fixed on two sides of the top of the base, a plurality of handrails are fixed on the tops of the foot blocking blocks, cross bars are fixed on the tops of the handrails, and first bosses are fixed on two ends of the tops of the cross bars. This safety device of hoist maintenance, when maintenance personal is located the top of base, can protect maintenance personal through the baffle of telescopic link and jack grafting, avoid the maintenance personal to drop, through the installation of lantern ring and connector link, the maintenance personal of being convenient for articulates the safety belt, form dual anti-falling protection, safety, suitability and reliability when improving the maintenance, further reduce the risk of falling in the hoist maintenance, improve the operating efficiency simultaneously, and the movable design of lantern ring can remove along with the removal of maintenance personal under the prerequisite of guaranteeing safety protection, avoid changing the articulated position midway.

Inventors

• Lan Quanjun
• DAI SHIHUA

Assignees

• 武汉长工机械技术服务有限责任公司

Dates

Publication Date

20260512

Application Date

20250604

Claims (7)

1. 1. The safety protection device for crane maintenance comprises a base and is characterized in that foot blocking blocks are fixed on two sides of the top of the base, a plurality of rails are fixed on the tops of the foot blocking blocks, cross bars are fixed on the tops of the rails, first bosses are fixed on two ends of the tops of the cross bars, sliding bars are fixed on opposite faces of the first bosses, five lantern rings are connected to the surfaces of the sliding bars in a sliding mode, connecting buckles are fixed on the outer surfaces of the lantern rings, rotating shafts are arranged on two sides of the top of the base, two ends of the rotating shafts are fixed with the foot blocking blocks, a baffle is connected to the surfaces of the rotating shafts in a rotating mode, telescopic holes are formed in the two ends of the cross bars, telescopic rods are connected to inner sliding mode, control blocks are fixed on the surfaces of the telescopic rods, through grooves in sliding connection with the control blocks are formed in the tops of the two ends of the cross bars, and jacks matched with the telescopic rods are formed in the tops of the two sides of the baffle.
2. 2. The safety protection device for crane maintenance according to claim 1, wherein a second boss is fixed on one side of the first boss, and a limiting rod matched with the connecting buckle is fixed on the opposite surface of the second boss.
3. 3. The safety protection device for crane maintenance according to claim 1, wherein the top of the base is provided with a plurality of drain holes, and the top of the base is provided with a plurality of bumps.
4. 4. The safety protection device for crane maintenance according to claim 1, wherein the other end of the telescopic rod is fixed with a spring, and the other end of the spring is fixed with the inside of the telescopic hole.
5. 5. The safety protection device for crane maintenance according to claim 1, wherein limiting plates are fixed at two ends of one side of the baffle plate, and a groove matched with the limiting plates is formed in one side of the cross rod.
6. 6. The crane maintenance safety protection device according to claim 1, wherein the outer surface of the cross rod is provided with a first reflecting strip, the two sides of the base are provided with a second reflecting strip, and the outer side of the baffle is provided with a reflecting plate.
7. 7. A safety device for crane maintenance according to claim 1, wherein three cushions are mounted on the inner side of the baffle.

Description

Safety protection device for crane maintenance Technical Field The utility model relates to the technical field of protection devices, in particular to a safety protection device for crane maintenance. Background A crane refers to a multi-action lifting machine that vertically lifts and horizontally conveys weights within a certain range. The main characteristic of the crane is that the driving cab and the lifting control cab are integrated and evolved by the crawler crane (crawler crane), the crawler and the walking support of the walking mechanism are changed into a chassis with tires, which overcomes the defect of the damage to the road surface caused by the crawler plate of the crawler crane (crawler crane), and belongs to the material handling machinery. In crane maintenance operation, because maintenance personnel need to carry out complicated actions such as exploring, bending down or carrying tool to face limit operation, its operation gesture easily leads to the deviation of health focus to surpass the protection boundary of fixed guardrail, if work platform exists greasy dirt, vibration or sudden external force interference, probably causes personnel to slip, focus unbalance or maloperation to cross dangerous cases such as protection barrier, causes personnel to expose the risk of falling in the high altitude, seriously threatens operator life safety. Disclosure of utility model The utility model aims to solve the technical problem that the prior art has the defect of lacking redundant safety protection measures for maintenance personnel, and provides a safety protection device for crane maintenance. In order to achieve the purpose, the safety protection device for crane maintenance comprises a base, wherein foot blocking blocks are fixed on two sides of the top of the base, a plurality of rails are fixed on the tops of the foot blocking blocks, cross bars are fixed on the tops of the rails, first bosses are fixed on two ends of the tops of the cross bars, sliding bars are fixed on opposite surfaces of the first bosses, five lantern rings are slidably connected to the surfaces of the sliding bars, connecting buckles are fixed on the outer surfaces of the lantern rings, rotating shafts are arranged on two sides of the top of the base, two ends of the rotating shafts are fixed with the foot blocking blocks, baffles are rotatably connected to the surfaces of the rotating shafts, telescopic holes are formed in the two ends of the cross bars, telescopic rods are slidably connected to the inside of the telescopic holes, control blocks are fixedly arranged on the surfaces of the telescopic rods, through grooves slidably connected with the control blocks are formed in the tops of the two ends of the cross bars, and jacks matched with the telescopic rods are formed in the tops of the two sides of the baffles. Preferably, one side of the first boss is fixed with a second boss, and a limiting rod matched with the connecting buckle for use is fixed on the opposite surface of the second boss. Preferably, the top of base has seted up a plurality of wash port, and the top of base is provided with a plurality of lug. Preferably, the other end of the telescopic rod is fixed with a spring, and the other end of the spring is fixed with the inside of the telescopic hole. Preferably, both ends of one side of the baffle are fixed with limiting plates, and a groove matched with the limiting plates is formed in one side of the cross rod. Preferably, the first reflection strip is installed on the outer surface of the cross rod, the second reflection strips are installed on two sides of the base, and the reflection plate is installed on the outer side of the baffle. Preferably, three cushioning pads are mounted on the inner side of the baffle. The utility model has the technical effects and advantages that: According to the utility model, when a maintenance person is positioned at the top of the base, the baffle plate inserted with the jack through the telescopic rod can protect the maintenance person, so that the maintenance person is prevented from falling off, the safety belt is conveniently hung by the maintenance person through the installation of the lantern ring and the connecting buckle, double anti-falling protection is formed, so that the safety, applicability and reliability in maintenance are improved, the falling risk in crane maintenance is further reduced, the operation efficiency is improved, and the movable design of the lantern ring can move along with the movement of the maintenance person on the premise of ensuring safety protection, so that the hanging position is prevented from being replaced halfway. According to the utility model, the baffle can only rotate anticlockwise when rotating through the clamping connection of the limiting plate and the groove, so that maintenance personnel can conveniently enter the top of the base. Drawings FIG. 1 is a schematic diagram of a front view of the present util