CN209650573U - A kind of mechanical balance counterweight lifting ground well falling proof device - Google Patents

Abstract

The utility model discloses a kind of mechanical balance counterweight lifting ground well falling proof devices, it is related to aviation ground well safety device field, including snap arm bracket, anti-fall plate, snap arm, rotating dog, guide support wheel and torque spring, one end of the anti-fall plate is fixedly connected with one end of the snap arm, the snap arm is hinged by rotating dog close to one end of the anti-fall plate and the snap arm bracket, the torque spring is socketed on the rotating dog, its both ends is fixedly connected with snap arm bracket and snap arm respectively, the guide support wheel is rotatably set to the one end of the snap arm far from anti-fall plate.The apparatus structure is simple, easy to use, is installed on the column in aviation ground well, can rotate automatically when there are the emergency cases such as steel rope breaking, causes to stop to crane lower section, prevents it from falling, and improves the safety that aviation ground well uses.

Description

A kind of mechanical balance counterweight lifting ground well falling proof device

Technical field

The utility model relates to aviation ground well safety device field, specially a kind of mechanical balance counterweight lifting ground well is anti- Drop device.

Background technique

Aircraft needs to carry out in hangar or airplane parking area oil supply, water supply, fuselage cleaning, waste using air service ground well A series of guarantee services such as processing.These air service ground wells need to have elevating function, in the prior art, common air service Ground well pulls crane to complete its lifting action by steel cable by pulley blocks.This kind of aviation ground well is in lifting process, once go out Emergency cases, the cranes such as existing steel rope breaking lose pulling force, will in rapid decrease under Gravitative Loads, to below people or object make At weighing wounded, there are great security risks.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of mechanical balance counterweight lifting ground well Falling proof device, the apparatus structure is simple, easy to use, is installed on the column in aviation ground well, steel rope breaking can occurring Etc. emergency cases when rotate automatically, to causing to stop below crane, prevent it from falling, improve the safety that aviation ground well uses Property.

The purpose of this utility model is achieved through the following technical solutions:

A kind of mechanical balance counterweight lifting ground well falling proof device, including snap arm bracket, anti-fall plate, snap arm, rotating dog, One end of guide support wheel and torque spring, the anti-fall plate is fixedly connected with one end of the snap arm, and the snap arm is close to institute The one end for stating anti-fall plate is hinged by rotating dog with the snap arm bracket, and the torque spring is socketed on the rotating dog, Both ends are fixedly connected with snap arm bracket and snap arm respectively, and the guide support wheel is rotatably set to the snap arm far from anti-fall One end of plate.

Further, the radial section of the guide support wheel is H-shaped.

It further, further include column, steel cable, rope sheave, counterweight lifting lug, locking nut and clump weight, it can on the column Sliding is provided with crane, and the counterweight lifting lug is fixedly connected with the crane, and the rope sheave is rotatably set to institute It states on column, the one end of the snap arm bracket far from the rotating dog is fixedly connected with the column, and the steel cable is arranged in institute State on the wheel face of guide support wheel and envelope be set on the wheel face of the rope sheave, the both ends of the steel cable respectively with the counterweight Block is fixedly connected with counterweight lifting lug.

Further, the torque spring is contraction state, and the vertical direction that the anti-fall plate deviates the crane is set It sets.

Further, several anti-fall stuck points are fixedly installed along its vertical direction on the crane, it is described to put pendant stuck point It is set under torque spring relaxed state on the vertical direction of the anti-fall Board position.

The beneficial effects of the utility model are:

The anti-fall device only includes snap arm bracket, anti-fall plate, snap arm, rotating dog, guide support wheel and torque spring, knot Structure is simple, and manufacturing cost is low.In use, with being installed on aviation on the column of downhole, when installation, only needs to move guide support wheel Setting aviation ground well original steel cable card can normally go up and down on the wheel face of guide support wheel, easy to install and use.When encountering When the emergency cases such as steel rope breaking, anti-fall plate resets under the action of torque spring, can effectively stop to crane, prevent It falls, the effective safety guaranteed when aviation ground well uses.Several anti-fall of upper setting along the vertical direction on crane Stuck point so that crane can also realize anti-fall function during passing through anti-fall Board position, while shortening anti-fall plate and rising The distance for dropping anti-fall point on frame, avoids impacting when because of this, crane declines caused by excessive excessive, breaks anti-fall plate or anti-fall The case where stuck point, occurs, and further ensures that the safety that aviation ground well uses.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of mechanical balance counterweight lifting ground well falling proof device of the utility model；

Fig. 2 is that a kind of installation part main view of mechanical balance counterweight lifting ground well falling proof device of the utility model is illustrated Figure；

Fig. 3 is that a kind of installation local overlooking of mechanical balance counterweight lifting ground well falling proof device of the utility model is illustrated Figure.

Specific embodiment

The technical solution of the utility model, but the protection scope of the utility model are described in further detail with reference to the accompanying drawing It is not limited to as described below.

As shown in Figure 1, a kind of mechanical balance counterweight lifting ground well falling proof device, including snap arm bracket 1, anti-fall plate 2, Snap arm 3, rotating dog 4, guide support wheel 5 and torque spring 6.One end of anti-fall plate 2 is fixedly connected with one end of snap arm 3, snap arm 3 Hinged by rotating dog 4 close to one end of anti-fall plate 2 and snap arm bracket 1, torque spring 6 is socketed on rotating dog 4, both ends point It is not fixedly connected with snap arm bracket 1 and snap arm 3, guide support wheel 5 is rotatably set to the one end of snap arm 3 far from anti-fall plate 2. When implementing, anti-fall plate 2 and snap arm 3 are vertically arranged, and the two can be rotated around rotating dog 4 together.Above-mentioned anti-fall plate 2 and snap arm 3 exist When rotating under external force, torque spring 6 is retracted, and stores elastic potential energy, once external force is lost, potential energy release, in torsion Anti-fall plate 2 and the achievable homing action of snap arm 3 under the action of spring 6.

As shown in Figure 2 and Figure 3, which further includes column 7, steel cable 8, rope sheave 9, counterweight lifting lug 10, locking nut 11 With clump weight 12.Crane is slidably provided on column 7, counterweight lifting lug 10 is fixedly connected with crane, and rope sheave 9 can be rotated Be set on column, the one end of snap arm bracket 1 far from rotating dog 4 is fixedly connected with column 7.Above-mentioned guide support wheel 5 Radial section is H-shaped, and steel cable 8 is arranged on the wheel face of guide support wheel 5 and envelope is set on the wheel face of rope sheave 9, steel cable 8 One end is fixedly connected with clump weight 12, and the other end is fixedly connected by locking nut 11 with counterweight lifting lug 10.In the installation shape Under state, anti-fall plate 2 deviates with crane vertical position, and torque spring 6 is contraction state, inside stores elastic potential Energy.

In crane uphill process, power is provided by clump weight 12, counterweight lifting lug 10 is pulled by steel cable 8 and drives liter Drop frame slides on column 7.In the uphill process, steel cable 8 is always maintained at tensioned state.Because steel cable 8 is arranged in guide support On the wheel face of wheel 5, under 8 tight state of steel cable, active force can be generated to guide support wheel 5 always, torque spring 6 is kept to be in Contraction state, so that anti-fall plate 2 deviates the vertical direction of crane, crane can normally be gone up and down.When steel cable 8 occur fracture or because When other accidents cause the relaxation of steel cable 8, steel cable 8 no longer causes to constrain to guide support wheel 5, at this time the elastic potential of torque spring 6 It can discharge, anti-fall plate 2 is rotated around rotating dog 4 to the underface of crane, plays barrier effect to crane, reaching prevents its pendant The purpose fallen.

Further, several anti-fall stuck points 13 are fixedly installed along the vertical direction of crane, anti-fall stuck point 13 is arranged Under 6 relaxed state of torque spring on the vertical direction of anti-fall 2 position of plate, above-mentioned anti-fall process is by anti-fall plate 2 to putting pendant stuck point 13 blocking limits to realize.Multiple anti-fall stuck points 13, which are arranged, makes crane by also may be used during anti-fall 2 position of plate It realizes anti-fall function, while shortening anti-fall plate 2 at a distance from point anti-fall on crane, avoid going up and down caused by excessive because of this Frame impacts excessive, the case where breaking anti-fall plate 2 or anti-fall stuck point 13 generation when declining, it is ensured that anti-fall stability and aviation ground well The safety used.

The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein Disclosed form, should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model It is required that protection scope in.

Claims (5)

1. a kind of mechanical balance counterweight lifting ground well falling proof device, which is characterized in that including snap arm bracket (1), anti-fall plate (2), snap arm (3), rotating dog (4), guide support wheel (5) and torque spring (6), one end of the anti-fall plate (2) and the card One end of arm (3) is fixedly connected, and the snap arm (3) passes through rotation close to one end of the anti-fall plate (2) and the snap arm bracket (1) Ship and resell on another market (4) hingedly, the torque spring (6) is socketed on the rotating dog (4), both ends respectively with snap arm bracket (1) and card Arm (3) is fixedly connected, and the guide support wheel (5) is rotatably set to the one end of the snap arm (3) far from anti-fall plate (2).

2. a kind of mechanical balance counterweight lifting ground well falling proof device according to claim 1, which is characterized in that described The radial section of guide support wheel (5) is H-shaped.

3. a kind of mechanical balance counterweight lifting ground well falling proof device according to claim 2, which is characterized in that also wrap Column (7), steel cable (8), rope sheave (9), counterweight lifting lug (10), locking nut (11) and clump weight (12) are included, on the column (7) It slidably is provided with crane, the counterweight lifting lug (10) is fixedly connected with the crane, and the rope sheave (9) is rotatable It being set on the column, the snap arm bracket (1) is fixedly connected far from the one end of the rotating dog (4) with the column (7), The steel cable (8) is arranged on the wheel face of the guide support wheel (5) and envelope is set on the wheel face of the rope sheave (9), institute The both ends for stating steel cable (8) are fixedly connected with the clump weight (12) and counterweight lifting lug (10) respectively.

4. a kind of mechanical balance counterweight lifting ground well falling proof device according to claim 3, which is characterized in that described Torque spring (6) is contraction state, and the anti-fall plate (2) deviates the vertical direction setting of the crane.

5. a kind of mechanical balance counterweight lifting ground well falling proof device according to claim 4, which is characterized in that described Several anti-fall stuck points (13) are fixedly installed along its vertical direction on crane, the anti-fall stuck point (13) is set to torque spring (6) under relaxed state on the vertical direction of anti-fall plate (2) position.