CN201059068Y

CN201059068Y - Balanced type lifting platform

Info

Publication number: CN201059068Y
Application number: CNU200720173735XU
Authority: CN
Inventors: 甄何平; 耿志江; 刘宝旺
Original assignee: Beijing Xingguang Film and TV Equipment Technologies Co Ltd
Current assignee: Beijing Xingguang Film and TV Equipment Technologies Co Ltd
Priority date: 2007-10-22
Filing date: 2007-10-22
Publication date: 2008-05-14
Anticipated expiration: 2017-10-22

Abstract

The utility model relates to a balanced lifting platform. The adjoining two edges of a top frame and a base of the utility model are respectively fixed with a L-shaped sliding track, both sides of the sliding tracks of the top frame and the base are respectively covered with a slide bushing; a right-angled scissors fork type lifting support is formed by two groups of scissors forks, each group of scissors fork is respectively formed by a plurality of scissors forks from the bottom up, a pin shaft is connected between each two scissors forks, the rear face of each pin shaft is screwed with a supporting rod cover, a supporting rod is right angle L-shaped, both sides of the supporting rod are respectively inserted into the supporting rod cover; the outer fixed ends of each group of scissors forks are fixed on the sliding tracks of the top frame and the base, the inner ends are respectively connected with the slide bushings; elastic elements are arranged on the inner side and the outer side of the right-angled scissors fork type lifting support. The utility model has the advantages that: the elastic elements are adopted, so the lifting of the platform can be easily operated without need an electric drive; the utility model can be stopped at any height during the whole stroke, and has high stability and safe use; the utility model has light self-weight and small volume, is convenient be transport, and is applicable to various occasions where need the vertical lifting.

Description

Balanced type lifting platform

Technical field

The utility model relates to a kind of lift platform, is meant a kind of balanced type lifting platform especially, and it is applicable to the various places that need vertical lift.

Background technology

The scissor-type platform is a kind of ordinary skill, generally is to be used in work high above the ground.Install for ease of the workman, the security platform of the work of being suitable for is housed at the top.Existing scissor-type lifting is all adopted to cut to pitch to be arranged in parallel poor stability.Active hydraulic formula lift platform, structure is heavier and complicated, needs power supply.In addition power source is installed between the angle on both sides, realizes lifting by the expansion angle, all complicated.

Summary of the invention

The purpose of this utility model is to provide a kind of just can realize the scissor-type lifting without power supply and labyrinth, owing to adopt the lift of flexible member generation and dead-weight balanced mode to realize balance, realize that total travel is middle more arbitrarily, the balanced type lifting platform that energy automatic stabilisation stops.

The purpose of this utility model is realized by following technical scheme, it is by right angle distribution scissor-type lifting support, top frame, base, support bar and flexible member are combined into a square framework, top frame and base are square, the top adjacent dual-side place of the following and base of top frame installs L type slide rail respectively, is set with a sliding sleeve at top frame L type slide rail and base L type slide rail dual-side; Right angle distribution scissor-type lifting support is located at adjacent two sides between the top frame of L type slide rail and the base, is three-dimensional right angle and distributes; Right angle distribution scissor-type lifting support is made of the scissors fork of two groups of identical symmetries of structure, every group of scissors fork is formed by from bottom to top a plurality of fork stack combinations of cutting respectively, each is cut fork and cuts yoke intermediate interdigitated position by two and adopt and to cut fork shaft and be formed by connecting, cut all to adopt between sticking down and cut the bolt axle and connect for per two, each cuts the bolt axle back side support bar cover that all is spirally connected, the rectangular L type of support bar structure, its dual-side is inserted into respectively in the support bar cover at the scissors fork back side, and support bar two outer ends are all fixing with the support bar cover in the outside; One of every group of scissors fork goes up fixed end and a following fixed end are fixed on top frame L type slide rail and base L type slide rail respectively with bearing pin outer end, and another upper extreme point that every group of scissors pitched and another lower extreme point are connected with sliding sleeve on being sleeved on L type slide rail with bearing pin respectively; Flexible member is installed in the about side of right angle distribution scissor-type lifting support.

The two ends that are installed in the flexible member of the about side of right angle distribution scissor-type lifting support upper and lower end are packed in respectively on the bearing pin of sliding sleeve and last fixed end or following fixed end; Position therebetween, the support bar in every interval installs flexible member additional, and the two ends of flexible member are packed in respectively cuts on the bolt axle.

All be lined with pad between L type slide rail and top frame or the base, make slide rail and top frame or and base between leave the slit, can make to slide on the slide rail smoothly and slide;

Two location are embraced card and are packed in respectively on the base L type slide rail dual-side.It is to embrace the card symmetry by two to install that card is embraced in the location, is screwed to form, and the scissors fork is limited when being raised to predetermined altitude put in place.

The 3rd of being packed in respectively in two groups of scissors forks of two handles cuts the fork shaft back side (from bottom to top).

L type slide rail is the square aluminum section bar.

Be provided with poly-tetrafluoro cushion block in the sliding sleeve wall, for slip smoothness on L type slide rail reduces resistance.

The utility model has the advantages that:

1, the utility model balanced type lifting platform is installed in angular scissors fork bottom with two flexible members, and generation power and system are dead-weight balanced, and the operator pushes away with hand one, but with regard to the easy manipulation lifting platform.

2, cut not stick driven by power need be installed, weight reduction, laborsaving during personnel operation.

3, can a plurality ofly cut the fork stack combinations, two groups of scissors forks act on lifting simultaneously on the right angle support bar, and its stability obviously improves, and operator's sense of stability strengthens, and is safe.

4, each strong point has the sliding sleeve effect, but free lifting, stops at any height.Limited site on the base slide rail, its rising, falling head can reach capacity, and have made things convenient for the operator.

5, safe in utilization, own wt is light and volume is little, is convenient to transportation.

Design principle:

1, it is good to cut fork right angle distributional stability.Cut for two groups and pitch into vertical distribution, overcome the shortcoming of parallel distribution, entire system stability improves.

2, support bar guarantees to cut fork homeostasis.The support bar of right-angle design supports two groups of scissors fork each other, guarantees to cut self rigidity of fork.

3, adopt flexible member to guarantee that lifting is stable.Top frame, base add flexible member, overcome system's self gravitation, make the operator laborsaving.The lift that flexible member produces and the frictional force of system itself, conducting oneself with dignity with system offsets, and the system that makes can both reach balance in the total travel optional position.

Description of drawings

Fig. 1 is the balanced type lifting platform structural representation

Fig. 2 is the left view of Fig. 1

Fig. 3 is the A-A sectional drawing of Fig. 1

Fig. 4 is a support bar nested structure schematic diagram

Fig. 5 is the left view of Fig. 4

Fig. 6 is the shift sleeve structure schematic diagram

Fig. 7 is the left view of Fig. 6

Fig. 8 embraces the structural representation of single armful of card in the card for the location

Fig. 9 is the left view of Fig. 8

Among the figure: 1. descend fixed end, 2. base, 3. the location embrace card, 4. sliding sleeve, 5. bearing pin, 6. pad, 7. cut the bolt axle, 8. support bar, 9. the support bar cover, 10. cut fork shaft, 11. handles, 12. are cut fixed end on yoke, 13. top frames, 14. flexible members, the 15.L type slide rail, 16..

The specific embodiment

The described balanced type lifting platform of present embodiment, as Fig. 1, Fig. 2, shown in Figure 3, it is by right angle distribution scissor-type lifting support, top frame 13, base 2, support bar 8 and flexible member 14 are combined into a square framework, top frame 13 and base 2 are square, the top adjacent dual-side place of the following and base 2 of top frame 13 installs L type slide rail 15 respectively, is set with a sliding sleeve 4 (as Fig. 6, shown in Figure 7) at top frame L type slide rail and base L type slide rail dual-side; Right angle distribution scissor-type lifting support is located at adjacent two sides between the top frame 13 of L type slide rail and the base 2, is three-dimensional right angle and distributes; Right angle distribution scissor-type lifting support is made of the scissors fork of two groups of identical symmetries of structure, every group of scissors fork is formed by from bottom to top a plurality of fork stack combinations of cutting respectively, every group of scissors fork is cut the fork stack combinations by from bottom to top four respectively and is formed in the present embodiment, each is cut fork and cuts yoke 12 intermediate interdigitated positions by two and adopt and to cut fork shaft 10 and be formed by connecting, cut all to adopt between sticking down and cut bolt axle 7 and connect for per two, each is cut bolt axle 7 back sides and all is spirally connected a support bar cover 9 (as Fig. 4, shown in Figure 5), support bar 8 rectangular L type structures, its dual-side is inserted into respectively in the support bar cover 9 at the scissors fork back side, 8 liang of outer ends of support bar are all fixing with the support bar cover 9 in the outside, and the support bar 8 in the present embodiment is three; One of every group of scissors fork goes up fixed end 16 and a following fixed end 1 are fixed on top frame L type slide rail and base L type slide rail respectively with bearing pin 5 outer end, and another upper extreme point that every group of scissors pitched and another lower extreme point are connected with sliding sleeve 4 on being sleeved on L type slide rail with bearing pin 5 respectively; Flexible member 14 is installed in the about side of right angle distribution scissor-type lifting support.

The two ends that are installed in the flexible member 14 of the about side of right angle distribution scissor-type lifting support upper and lower end are packed in respectively on the bearing pin 5 of sliding sleeve 4 and last fixed end 16 or following fixed end 1; Position therebetween, the support bar 8 in every interval installs flexible member 14 additional, and the two ends of flexible member 14 are packed in respectively cuts on the bolt axle 7.Be to install flexible member 14 additional in the place of second support bar 8 in the present embodiment, its two ends are packed in respectively cuts on the bolt axle 7.Flexible member 14 in the present embodiment is a spring, and two every group, its two ends are packed in the both sides, upper, middle and lower of every group of scissors fork in the right angle distribution scissor-type lifting support, each one of every side respectively with bolt, nut.

All be lined with pad 6 between L type slide rail 15 and top frame 13 or the base 2, make L type slide rail 15 and top frame 13 or and base 2 between leave the slit, sliding sleeve 4 is slided on L type slide rail 15 smoothly.

Two location are embraced card 3 and are packed in respectively on base L type slide rail 15 dual-sides; As Fig. 8, shown in Figure 9, it is to embrace the card symmetry by two to install that card 3 is embraced in the location, is screwed to form, and the scissors fork is limited when being raised to predetermined altitude put in place.

The 3rd of being packed in respectively in two groups of scissors forks from bottom to top of two handles 11 cuts fork shaft 10 back sides.

L type slide rail 15 is the square aluminum section bar.

Be provided with poly-tetrafluoro cushion block in sliding sleeve 4 walls, for slip smoothness on L type slide rail reduces resistance.

Use principle: hold two handles 11 when the operator stands in the square seat two, upwards do downwards simultaneously and elect action realization lift platform, when the scissors fork was closed lifting, sliding sleeve 4 slided on L type slide rail 15, by support bar cover 9 slip on support bar 8 of inner end.The type because support bar 8 meets at right angles, two groups of scissors fork motions on perpendicular type support bar 8 simultaneously reach another group scissors fork motion simultaneously of control, its movement locus is identical, therefore guarantee scissors fork homeostasis, the effect owing to power during lifting is not outwards supportted, straight up.The location is embraced card 3 and is fixed on the base L type slide rail 15, the scissors fork is limited when being raised to predetermined altitude put in place.Laterally strain with flexible member 14 scissors fork bottom, because flexible member 14 effects produce the component that rises, reaches stable with dead-weight balanced assurance lifting.

Claims

1. balanced type lifting platform, it is characterized in that: it is by right angle distribution scissor-type lifting support, top frame (13), base (2), support bar (8) and flexible member (14) are combined into a square framework, top frame (13) and base (2) are square, the top adjacent dual-side place of the following and base (2) of top frame (13) installs L type slide rail (15) respectively, is set with a sliding sleeve (4) at top frame L type slide rail and base L type slide rail dual-side; Right angle distribution scissor-type lifting support is located at adjacent two sides between the top frame (13) of L type slide rail and the base (2), is three-dimensional right angle and distributes; Right angle distribution scissor-type lifting support is made of the scissors fork of two groups of identical symmetries of structure, every group of scissors fork is formed by from bottom to top a plurality of fork stack combinations of cutting respectively, each is cut fork and cuts yoke (12) intermediate interdigitated position by two and adopt and to cut fork shaft (10) and be formed by connecting, cut all to adopt between sticking down and cut bolt axle (7) and connect for per two, each cuts bolt axle (7) back side support bar cover (9) that all is spirally connected, support bar (8) is L type structure at right angles, its dual-side is inserted into respectively in the support bar cover (9) at the scissors fork back side, and support bar (8) two outer ends are all fixing with the support bar cover (9) in the outside; Go up fixed end (16) for one of every group of scissors fork and use bearing pin (5) to be fixed on the outer end of top frame L type slide rail and base L type slide rail respectively with a following fixed end (1), another upper extreme point of every group of scissors fork is connected with the sliding sleeve (4) on another lower extreme point is used bearing pin (5) respectively and is sleeved on L type slide rail; Flexible member (14) is installed in the about side of right angle distribution scissor-type lifting support.

2. balanced type lifting platform as claimed in claim 1 is characterized in that: the two ends that are installed in the flexible member (14) of the about side of right angle distribution scissor-type lifting support upper and lower end are packed in respectively on the bearing pin (5) of sliding sleeve (4) and last fixed end (16) or following fixed end (1); Position therebetween, the support bar in every interval (8) installs flexible member (14) additional, and the two ends of flexible member (14) are packed in respectively cuts on the bolt axle (7).

3. balanced type lifting platform as claimed in claim 1 is characterized in that: all be lined with pad (6) between L type slide rail (15) and top frame (13) or the base (2).

4. balanced type lifting platform as claimed in claim 1 is characterized in that: two location are embraced card (3) and are packed in respectively on base L type slide rail (15) dual-side.

5. balanced type lifting platform as claimed in claim 4 is characterized in that: it is to embrace the card symmetry by two to install that card (3) is embraced in the location, is screwed to form.

6. balanced type lifting platform as claimed in claim 1 is characterized in that: from bottom to top the 3rd that two handles (11) are packed in respectively in two groups of scissors fork cuts fork shaft (10) back side.

7. balanced type lifting platform as claimed in claim 1 is characterized in that: L type slide rail (15) is the square aluminum section bar.

8. balanced type lifting platform as claimed in claim 1 is characterized in that: be provided with poly-tetrafluoro cushion block in sliding sleeve (4) wall.