CN102219164A

CN102219164A - Hinging device for safety supporting arm of aerial work platform

Info

Publication number: CN102219164A
Application number: CN2011100759850A
Authority: CN
Inventors: 许树根
Original assignee: Zhejiang Dingli Machinery Co Ltd
Current assignee: Zhejiang Dingli Machinery Co Ltd
Priority date: 2011-03-29
Filing date: 2011-03-29
Publication date: 2011-10-19
Anticipated expiration: 2031-03-29
Also published as: CN102219164B

Abstract

The invention relates to an aerial work platform, in particular to a maintenance safety support device for a scissor-type lifting device of an aerial work platform. A hinged device for a safety support arm of an aerial work platform, the device includes the safety support arm and a connecting rod arranged on the scissor lift device of the aerial work platform, a fixing groove is arranged above the safety support arm, and four The ends of the sides are respectively provided with fixed openings, and the lower plate is provided with fork-shaped openings; the outer side of the connecting rod is provided with a support tube, and the two sides of the support tube are respectively provided with annular grooves, and the annular grooves are provided with two An external clamp and an internal clamp, the two external clamps are clamped on both sides of the internal clamp to form an annular mouth and buckle on the annular groove, and the two ends of the internal clamp and the external clamp are respectively provided with protruding blocks, protruding Bolts are arranged on the block to fix the inner chuck and the outer chuck, and the fixing mouth is buckled on the protruding block. The hinged device of the invention has the characteristics of simple structure, good stability and convenient installation.

Description

The articulated mounting of high-altitude operation platform safety supports arm

Technical field

The present invention relates to high-altitude operation platform, relate in particular to a kind of maintenance safety bracing or strutting arrangement of high-altitude operation platform scissor-type jacking system.

Background technology

Existing high-altitude operation platform comprises fuselage, running gear, jacking system and job platform, and job platform is arranged on the jacking system top; Jacking system is arranged on the fuselage, can be scissor-type jacking system, column type jacking system or sleeve-type jacking system.Scissor-type jacking system such as Chinese utility model patent (application number: 200720114879.8 applyings date: 2007-09-14) the scissor-type jacking system of disclosed high-altitude operation platform, this scissor-type jacking system comprises 2 cover decussate textures and drives the oil cylinder of 2 cover decussate textures, 2 cover decussate textures are hinged by some connecting rods respectively and form, and are connected by pipe link between the 2 cover decussate textures.Above-mentioned scissor-type jacking system need stop the scissor-type jacking system to certain position in maintenance, the scissor-type jacking system has downward trend, if oil cylinder loses oil pressure in maintenance, the scissor-type jacking system will descend, thereby causes accident to take place.

For this reason, the applicant has applied for a kind of maintenance safety bracing or strutting arrangement of scissor-type jacking system, and this device has been avoided the generation of accident, has characteristics simple in structure, easy to use.Relate in this patent that the safety supports arm is hinged to be arranged on pipe link of scissor-type jacking system, the invention provides above-mentioned safety supports arm articulated manner.

Summary of the invention

That the articulated mounting that the purpose of this invention is to provide above-mentioned high-altitude operation platform safety supports arm, this device have is simple in structure, good stability, characteristics easy for installation.

In order to realize above-mentioned purpose, the present invention has adopted following technical scheme:

The articulated mounting of high-altitude operation platform safety supports arm, this device comprises described safety supports arm and is arranged on high-altitude operation platform scissor-type jacking system upper connecting rod, safety supports arm top is provided with hold down groove, be respectively equipped with fixing port on the end on four limits, hold down groove both sides, lower plate is provided with the fork-shaped mouth; The outside of described pipe link is arranged with support tube, the both sides of support tube are respectively equipped with circular groove, circular groove is provided with two and adds head and an interior chuck, two add head-clamp and are buckled on the circular groove at the both sides of interior chuck looping mouth, two ends of interior chuck and outer chuck are respectively equipped with the protrusion piece, the protrusion piece is provided with bolt interior chuck and outer chuck is fixed, and described fixing port is buckled in and protrudes on the piece.

As further improvement, above-mentioned safety supports arm is connected and composed by upper plate, lower plate, two vertical rods and a crosspiece, and upper plate and lower plate are separately positioned on the two ends of two vertical rods, and described hold down groove is arranged on the upper plate, and described fork-shaped mouth is arranged on the lower plate.

The present invention is owing to adopted above-mentioned technical scheme, the scissor-type jacking system is when overhauling, the fork-shaped mouth of safety supports arm supports on the pipe link under that root pipe link of hinged safety supports arm, can prevent that the scissor-type jacking system from descending, and avoided the generation of accident.That the articulated mounting of the application of the invention has is simple in structure, good stability, characteristics easy for installation.

Description of drawings

Fig. 1 is the high-altitude operation platform scheme drawing.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the structural representation between fuselage, scissor-type jacking system, fixed operation platform and the active job platform.

Fig. 4 is the left view of Fig. 3.

Fig. 5 is the structural representation of scissor-type jacking system.

Fig. 6 is the left view of Fig. 5.

Fig. 7 rises the structural representation of state for the scissor-type jacking system.

Fig. 8 is the mounting structure scheme drawing of safety supporting device.

Fig. 9 is the birds-eye view of Fig. 8.

Figure 10 is the structural representation of safety supports arm.

Figure 11 is the left view of Figure 10.

Figure 12 is the mounting structure scheme drawing of fastening screw.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present invention is made a detailed explanation.

As Fig. 1, high-altitude operation platform shown in Figure 2, this high-altitude operation platform is by fuselage 1, support 2, wheel running gear 3, engine block 4, the scissor-type jacking system, fixed operation platform 6, platform guardrail 7, platform stop locking device 8, body supporting apparatus 9 and active job platform 10 constitute, wheel running gear 3 is arranged on the fuselage 1, body supporting apparatus 9 is arranged on four bights of fuselage 1, fixed operation platform 6 is arranged on the scissor-type jacking system 5, job platform is made up of fixed operation platform 6 and the active job platform 10 that is arranged on fixed operation platform 6 two ends, and platform stop locking device 8 is arranged on the active job platform 10.

As shown in Figure 3, Figure 4, the scissor-type jacking system comprises to be cut fork device 5 and provides the hydraulic actuating cylinder 14 of lifting power for cutting fork device 5, the both sides of cutting fork device 5 are respectively cuts the fork member, cut the fork member by cut outward the fork member and in cut the fork member form, cut outward the fork member and in cut the fork member by the mutual hinged formation scissor structure of bearing pin, and two covers of hinge point are cut and are provided with pipe link 17 between the fork member and are connected.Cut outer the cutting between the fork member that is equipped with 40, two upper and lower of buffer substrate tablet between the fork member in two upper and lower and be equipped with buffer substrate tablet 40.As Fig. 5, Fig. 6, shown in Figure 7, in cut the fork member and be respectively to cut in first to cut in the fork member 51, second to cut in the fork member 52, the 3rd and cut fork member 54 in the fork member 53 and the 4th; Cutting the fork member outward is respectively the first outer outer outer fork member 57 and the of cutting of fork member the 56, the 3rd of cutting of fork member 55, second of cutting and cuts fork member 58 all round.Cut first outer the cutting of fork device 5 and cut the hinged respectively sliding block 50 that is provided with in fork member 51 lower ends in the fork member 55 and first, described fuselage 1 is provided with glidepath 11, sliding block 50 is arranged on the glidepath 11, and the hinged lower end that is provided with first articulated bracket, 12, the first articulated brackets 12, the middle part of in first, cutting fork member 51 and fuselage 1 setting that is hinged; Cutting the of fork device 5 cuts all round and cuts the hinged respectively top shoe 59 that is provided with in fork member 54 upper ends in the fork member 58 and the 4th, described fixed operation platform 6 bottoms are provided with slide rail 60, top shoe is arranged on the slide rail 60, and the hinged upper end that is provided with second articulated bracket, 13, the second articulated brackets 13, the middle part of in the 4th, cutting fork member 54 and the fixed operation platform 6 bottoms setting that is hinged.

As Fig. 5, Fig. 6, shown in Figure 7, cut in two first between the fork member 51 and be provided with down hydraulic actuating cylinder mount pad 15, and in second, cut fork and be provided with hydraulic actuating cylinder mount pad 16 between the member 52, the two ends of described hydraulic actuating cylinder 14 are hinged respectively to be arranged on down on hydraulic actuating cylinder mount pad 15 and the last hydraulic actuating cylinder mount pad 15.

As Fig. 8, shown in Figure 9, cut fork device 5 and be provided with safety supporting device, safety supporting device is made of safety supports arm 20 and safety arm registration device, one end of safety supports arm 20 is hinged to be arranged on the pipe link 17, the other end of safety supports arm 20 is provided with fork-shaped mouth 35, and the pipe link 17 under that root pipe link 17 of fork-shaped mouth 35 and hinged safety supports arm 20 is suitable.The safety arm registration device comprises fastening screw 21 and locating plate 22; And in two second of both sides, cut fixed link 18 between the fork member 52, and being welded with adapter plate 23 on the fixed link 18, described fastening screw 21 is arranged on the adapter plate 23; Described locating plate 22 is arranged on the inboard of safety supports arm 20, and locating plate 22 is an arc, and the inboard of locating plate 22 can be provided with pad 24, and pad 24 adopts the PA6 material.The upper/lower terminal of locating plate 22 is respectively equipped with knock hole 30, and when fastening screw 21 inserted the knock hole 30 of locating plate 22 upper ends, the fork-shaped mouth 35 of safety supports arm 20 supported and is arranged on the pipe link suitable with it 17.

As Figure 10, shown in Figure 11, safety supports arm 20 is connected and composed by upper plate 32, lower plate 33, two vertical rods 31 and a crosspiece 34, upper plate 32 and lower plate 33 are separately positioned on the two ends of two vertical rods 31, described fork-shaped mouth 35 is arranged on the lower plate 32, upper plate 32 is provided with hold down groove 36, hold down groove 36 is buckled on the pipe link 17, is respectively equipped with fixing port 37 on four limits, both sides of hold down groove 36; The outside of described pipe link 17 is arranged with support tube 25, and the both sides of support tube 25 are respectively equipped with circular groove, circular groove be provided with two add 27 and 26, two of interior chucks add 27 and interior chuck 26 all adopt the PA6 material.The both sides looping mouth of chuck 26 was buckled on the circular groove in two outer chucks 27 were clipped in, two ends of interior chuck 26 and outer chuck 26 are respectively equipped with protrudes piece 29, it is fixing with interior chuck 26 and outer chuck 26 that protrusion piece 29 is provided with bolt 28, and described fixing port 37 is buckled in and protrudes on the piece 29.

As shown in figure 12, fastening screw 21 is made of handle 41, alignment pin 43, guiding pole socket 42, retracing spring 44 and captive nut 45, guiding pole socket 42 is arranged on the adapter plate 23 by captive nut 45, one end of alignment pin 43 and handle 41 are by being threaded, the other end passes guiding pole socket 42 and protrudes guiding pole socket 42, retracing spring 44 is arranged in the guiding pole socket 42, and an end of retracing spring 44 offsets with guiding pole socket 42, and the bulge loop on the other end and the alignment pin 43 offsets.

Claims

1. The hinged device of the safety support arm of the aerial work platform is characterized in that the device includes the safety support arm (20) and the connecting rod (17) set on the scissor lift device of the aerial work platform, the safety support arm ( 20) There is a fixing slot (36) on the top, fixing ports (37) are respectively provided on the ends of the four sides on both sides of the fixing slot (36), and a fork-shaped opening (35) is provided on the lower plate (33); The outer side of the connecting rod (17) is provided with a support tube (25), and the two sides of the support tube (25) are respectively provided with annular grooves, and two external clamps (27) and an inner chuck ( 26), two external clamps (27) are clamped on both sides of the inner clamp (26) to form an annular mouth and buckle on the annular groove, and the two ends of the inner clamp (26) and the outer clamp (27) are respectively provided with There is a protruding block (29), and the protruding block (29) is provided with a bolt (28) to fix the inner chuck (26) and the outer chuck (27), and the fixed port (37) is buckled on the protruding block (29) on.

2. The hinged device of the safety support arm of the aerial work platform according to claim 1, characterized in that: the safety support arm (20) consists of an upper plate (32), a lower plate (33), two vertical rods (31) and a The crosspieces (34) are connected, the upper plate (32) and the lower plate (33) are respectively arranged at the two ends of the two vertical rods (31), and the fixing groove (36) is arranged on the upper plate (32). The fork (35) is arranged on the lower plate (33).

3. The safety support arm of the safety support device for aerial work platforms according to claim 1 or 2, characterized in that: the two external clamps (27) and one internal clamp (26) are both made of PA6 material.