CN201746253U

CN201746253U - Folding engine crane

Info

Publication number: CN201746253U
Application number: CN2010202544144U
Authority: CN
Inventors: 戴浩英
Original assignee: Changshu Tongrun Auto Accessory Co Ltd
Current assignee: Changshu Tongrun Auto Accessory Co Ltd
Priority date: 2010-07-02
Filing date: 2010-07-02
Publication date: 2011-02-16
Anticipated expiration: 2020-07-02

Abstract

The utility model relates to a folding engine crane, which belongs to a lifting device and comprises a substrate, a folding leg, a supporting pole, a reinforcing connecting rod used for connecting the supporting pole with the substrate, a push handle arranged on the supporting pole, a suspension arm arranged on the top of the supporting pole, an extending suspension arm arranged on the suspension arm, a jack arranged between the supporting pole and the suspension arm, front wheels arranged on the folding leg, rear wheels arranged on the substrate and a middle wheel/middle wheels, wherein a pair of front wheels and a pair of rear wheels are respectively arranged; the number of the middle wheel is only one or two; the middle wheel/the middle wheels is/are arranged at the middle part or both sides of the length direction of the front end of the substrate through a middle wheel rack. The utility model is characterized in that the middle wheel rack is additionally provided with a height adjustment mechanism for adjusting the height of the middle wheel/the middle wheels. The utility model has the advantages that no matter when in unloading or loading or storage folding state, the mounting height between the middle wheel/the middle wheels and the front wheels or the rear wheels can be kept the same, and thereby, the pressure borne by the crane can be evenly distributed among all the wheels and the demand of safe use is satisfied. The utility model has simple structure, is easy to manufacture and is convenient to operate.

Description

A kind of collapsible engine loop wheel machine

Technical field

The utility model belongs to the bont technical field, is specifically related to a kind ofly have five and take turns or the six collapsible engine loop wheel machines of taking turns, and be improvement to existing collapsible engine loop wheel machine structure.

Background technology

At present, collapsible engine loop wheel machine structure more common on the market is by Fig. 1, Fig. 2 discloses, it mainly comprises pedestal 1, be separately fixed at folding leg 2 and dagger 3 on the pedestal 1, be used to connect the reinforcement connecting rod 11 of dagger 3 and pedestal 1, be located at and be the convenient handle 12 that promotes on the dagger 3, be installed in the arm 5 at dagger 3 tops, be located at the extension arm 6 on the arm 5, be located at the suspension hook 7 that extends on the arm 6, and be installed in and be used to arm 5 that the jack 4 of propulsion source is provided between dagger 3 and the arm 5, be located at the front-wheel 8 on the folding leg 2, be located at the trailing wheel 10 on the pedestal 1, with the middle wheel 9 on the middle wheel carrier 13 that is located at pedestal 1, described front-wheel 8, trailing wheel 10 respectively has a pair of, wheel 9 can be one in described, also can be a pair of, when central wheel 9 is one, in wheel 9 be arranged on the centre of pedestal 1 front end length direction by middle wheel carrier 13, constitute five and take turns collapsible engine loop wheel machine; In the middle of wheel 9 when be a pair of, middle wheel 9 is separately positioned on the both sides of pedestal 1 front end length direction by middle wheel carrier 13, formation six is taken turns collapsible engine loop wheel machine.In the said structure,, therefore when reality is used, work by front-wheel 8 and trailing wheel 10, and middle wheel 9 is liftoff because front and rear wheel is different with the setting height(from bottom) of middle wheel; When on the suspension hook 7 during bearing load, might in wheel 9 bear application force with front-wheel 8, and trailing wheel 10 is inoperative; And when storage is folding, because of trailing wheel 10 and middle wheel 9 have height, can cause leaning forward, there is potential safety hazard; Folding into use or using the back to folding, inconvenient hidden danger is installed in existence.

Summary of the invention

The purpose of this utility model is that a kind of collapsible engine loop wheel machine will be provided, and it can make front-wheel, trailing wheel and middle wheel simultaneously stressed when load, thereby reduces load to ground-surface impact; When storage is folding, can make trailing wheel and middle wheel keep same level attitude, thereby improve security of products, and simple in structure, easy to manufacture, easy to operate.

The purpose of this utility model reaches like this, a kind of collapsible engine loop wheel machine, comprise pedestal, be separately fixed at folding leg and dagger on the pedestal, be used to connect the reinforcement connecting rod of dagger and pedestal, be located at the convenient handle that promotes that is on the dagger, be installed in the arm at dagger top, be located at the extension arm on the arm, be located at the suspension hook that extends on the arm, and be installed in and be used to arm that the jack of propulsion source is provided between dagger and the arm, be located at the front-wheel on the folding leg, be located at the trailing wheel on the pedestal, with middle wheel, described front-wheel, trailing wheel respectively has a pair of, wheel has one or a pair of in described, middle middle part or the both sides that are installed in pedestal front end length direction by middle wheel carrier of taking turns are characterized in: have additional the height adjustment mechanism that is used for adjusting the wheel height on the wheel carrier in described.

In a specific embodiment of the present utility model, described height adjustment mechanism comprises spring housing, stage clip, bearing pin and locking piece, when described middle wheel has one, middle wheel is installed in the middle part of pedestal front end length direction by middle wheel carrier, described spring is with one, this spring housing is fixed on the middle wheel carrier, on described spring housing, offer pin shaft hole, described bearing pin is arranged on the top of described middle wheel short transverse, on described bearing pin, be arranged with stage clip, described stage clip places spring housing, and described bearing pin is spacing and constitute five and take turns collapsible engine loop wheel machine with locking piece behind the pin shaft hole that passes on the spring housing; In described there be when a pair of wheel, one centering wheel is installed in the both sides of pedestal front end length direction respectively by middle wheel carrier, described spring is with a pair of, be separately fixed on the described middle wheel carrier, on a pair of spring housing, offer pin shaft hole respectively, described bearing pin also has a pair of, be arranged on the top of described centering wheel short transverse respectively, on a pair of bearing pin, be arranged with a stage clip respectively, a pair of stage clip places a pair of spring housing respectively, a pair of bearing pin pass on a pair of spring housing behind the corresponding pin shaft hole spacing and constitute six and take turns collapsible engine loop wheel machine with locking piece.

In another specific embodiment of the present utility model, the cardan wheel that described middle wheel holds for tape spool.

In another specific embodiment of the present utility model, constitute bearing fit between the pin shaft hole on described bearing pin and the spring housing.

In another specific embodiment of the present utility model, described locking piece is nut or back-up ring.

The utility model is because after adopting said structure, the beneficial effect that has: because the height adjustment mechanism that is used for adjusting the wheel height that sets up on the middle wheel carrier, therefore, no matter be in unloading, when load is arranged or when storing folded state, the identical setting height(from bottom) of maintenance between wheel and front-wheel or the trailing wheel in all making, thereby the pressure of loop wheel machine carrying can be distributed between each wheel, reach the requirement of safe handling; Also have advantages such as simple in structure, easy to manufacture, easy to operate simultaneously.

Description of drawings

Fig. 1 is the constructional drawing of existing collapsible engine loop wheel machine.

Fig. 2 is the front view of collapsible engine loop wheel machine when storage is folding among Fig. 1.

Fig. 3 is an example structure figure of the utility model engine loop wheel machine.

Fig. 4 is the front view of collapsible engine loop wheel machine when storage is folding among Fig. 3.

Fig. 5 is the collapsible engine loop wheel machine front view in use among Fig. 3.

Wherein: 1. pedestal, 2. folding leg, 3. dagger, 4. jack, 5. arm, 6. extend arm, 7. suspension hook, 8. front-wheel, 9. in wheel, 10. trailing wheel, 11. is strengthened wheel carrier, 14. locking pieces, 15. spring housings, 16. pin shaft holes, 17. stage clips, 18. bearing pins in connecting rods, 12. handles, 13..

The specific embodiment

For the inspector that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in conjunction with the accompanying drawings in the mode of embodiment below, but to the description of embodiment all is not restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

See also Fig. 3 and in conjunction with Fig. 4 and Fig. 5, a kind of collapsible engine loop wheel machine of the utility model, comprise pedestal 1, be separately fixed at folding leg 2 and dagger 3 on the pedestal 1, be used to connect the reinforcement connecting rod 11 of dagger 3 and pedestal 1, be located at the convenient handle 12 that promotes that is on the dagger 3, be installed in the arm 5 at dagger 3 tops, be located at the extension arm 6 on the arm 5, be located at the suspension hook 7 that extends on the arm 6, and be installed in and be used to arm 5 that the jack 4 of propulsion source is provided between dagger 3 and the arm 5, be located at a pair of front-wheel 8 of folding leg 2 both sides, be located at the pair of rear wheels 10 of pedestal 1 both sides, with the middle wheel 9 on the middle wheel carrier 13 that is installed in pedestal 1 by height adjustment mechanism, in the present embodiment, wheel 9 has one in described, the middle wheel 9 preferred cardan wheels that adopt tape spools to hold, described height adjustment mechanism comprises spring housing 15, stage clip 17, bearing pin 18 and locking piece 14, described spring housing 15 has one, this spring housing 15 is fixed on the middle wheel carrier 13, middle wheel carrier 13 is fixed on the middle part of pedestal 1 front end length direction, on described spring housing 15, offer pin shaft hole 16, described bearing pin 18 is arranged on the top of described middle wheel 9 short transverses, with middle wheel 9 structures be one, on described bearing pin 18, be arranged with stage clip 17, described stage clip 17 places spring housing 15, described bearing pin 18 is in that to pass pin shaft hole 16 back on the spring housing 15 spacing and constitute five and take turns collapsible engine loop wheel machine with locking piece 14, constitute bearing fit between the pin shaft hole 16 on described bearing pin 18 and the spring housing 15, and it is very close to each other between the step surface of the upper surface of wheel 9 and spring housing 15 under the effect of stage clip 17, making, described locking piece 14 is nut or back-up ring, in the present embodiment, be preferably nut.

Please continue to consult Fig. 3, Fig. 4 and Fig. 5, narrate principle of work of the present utility model: when unloading of engine loop wheel machine or no-load, when front-wheel 8, trailing wheel 10 landed, middle wheel 9 also landed under the effect of stage clip 4, and the three is on the same horizontal surface.Storing when folding when the engine loop wheel machine, middle wheel 9 is in equal height equally with trailing wheel 10 under the effect of stage clip 4, the engine loop wheel machine is horizontal.When engine loop wheel machine bearing load, because the pressure that bears on the middle wheel 9 is big, stage clip 4 in the height adjustment mechanism is constantly compressed, bearing pin 18 is by pin shaft hole 16 upward movements on the spring housing 15, thereby wheel 9 and front-wheel 8, trailing wheel 10 are on the same horizontal surface, the pressure of load-bearing all is distributed in each wheel, reaches the requirement of safe handling.

Claims

1. collapsible engine loop wheel machine, comprise pedestal (1), be separately fixed at folding leg (2) and dagger (3) on the pedestal (1), be used to connect the reinforcement connecting rod (11) of dagger (3) and pedestal (1), be located at the convenient handle (12) that promotes that is on the dagger (3), be installed in the arm (5) at dagger (3) top, be located at the extension arm (6) on the arm (5), be located at the suspension hook (7) that extends on the arm (6), and be installed in and be used to arm (5) that the jack (4) of propulsion source is provided between dagger (3) and the arm (5), be located at the front-wheel (8) on the folding leg (2), be located at the trailing wheel (10) on the pedestal (1), with middle wheel (9), described front-wheel (8), trailing wheel (10) respectively has a pair of, wheel (9) has one or a pair of in described, in wheel (9) be installed in the middle part or the both sides of pedestal (1) front end length direction by middle wheel carrier (13), it is characterized in that having additional on the wheel carrier in described (13) being used for adjusting and take turns (9) height adjustment mechanism highly.

2. a kind of collapsible engine loop wheel machine according to claim 1, it is characterized in that described height adjustment mechanism comprises spring housing (15), stage clip (17), bearing pin (18) and locking piece (14), when described middle wheel (9) has one, middle wheel (9) is installed in the middle part of pedestal (1) front end length direction by middle wheel carrier (13), described spring housing (15) has one, this spring housing (15) is fixed on the middle wheel carrier (13), on described spring housing (15), offer pin shaft hole (16), described bearing pin (18) is arranged on the top of described middle wheel (9) short transverse, on described bearing pin (18), be arranged with stage clip (17), described stage clip (17) places spring housing (15), and described bearing pin (18) is in that to pass pin shaft hole (16) back on the spring housing (15) spacing and constitute five and take turns collapsible engine loop wheel machine with locking piece (14); In described there be when a pair of wheel (9), one centering wheel (9) is installed in the both sides of pedestal (1) front end length direction respectively by middle wheel carrier (13), described spring housing (15) has a pair of, be separately fixed on the described middle wheel carrier (13), on a pair of spring housing (15), offer pin shaft hole (16) respectively, described bearing pin (18) also has a pair of, be arranged on the top of described centering wheel (9) short transverse respectively, on a pair of bearing pin (18), be arranged with a stage clip (17) respectively, a pair of stage clip (17) places a pair of spring housing (15) respectively, and to go up corresponding pin shaft hole (16) back spacing and constitute six and take turns collapsible engine loop wheel machine with locking piece (14) passing a pair of spring housing (15) for a pair of bearing pin (18).

3. a kind of collapsible engine loop wheel machine according to claim 1 is characterized in that the cardan wheel that described middle wheel (9) holds for tape spool.

4. a kind of collapsible engine loop wheel machine according to claim 2 is characterized in that constituting bearing fit between the pin shaft hole (16) on described bearing pin (18) and the spring housing (15).

5. a kind of collapsible engine loop wheel machine according to claim 2 is characterized in that described locking piece (14) is nut or back-up ring.