CN102529575A

CN102529575A - Caster wheel and movable light fixture equipped with same

Info

Publication number: CN102529575A
Application number: CN201010610040XA
Authority: CN
Inventors: 周明杰; 杨学民
Original assignee: Oceans King Lighting Science and Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Current assignee: Oceans King Lighting Science and Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Priority date: 2010-12-28
Filing date: 2010-12-28
Publication date: 2012-07-04

Abstract

The invention discloses a caster wheel and a movable light fixture equipped with the same, wherein the caster wheel comprises a rotary wheel and a bracket; the bracket is fixed on the rotary wheel via a rotary shaft penetrating through the center of circle of the rotary wheel; the bracket comprises two mutually symmetrical side parts and a top plate connected with the two side parts; and each side part of the bracket comprises a first side plate with a hole via which the rotary shaft can penetrate through, two reinforcing plates located at the both sides of the first side plate and extending outwards along the vertical side of the first side plate in an inclined manner, and two second side plates which are located at the both sides of each of the two reinforcing plates respectively and extend in a plane parallel to the first side plate along the vertical sides of the two reinforcing plates respectively. The caster wheel disclosed by the invention is high in load capacity, good in sideway impact-resisting capacity and not easy to damage; and the caster wheel is installed on a movable light fixture for field use and enables the movable light fixture to be safer and more reliable.

Description

Castor and possess the movable lamps of this castor

Technical field

The present invention relates to roller, relate in particular to a kind of movable lamps that is used for mobile caster wheel in the open air and possesses this castor.

Background technology

The awareness of safety of Along with people's promotes, and the demand of open-air movable lamps constantly increases.Particularly in recent years, disaster was multiple, when rescuing, especially needed the light fixture that can move reliably in the open air in the open air.Because China topoclimate is complicated, many mountain regions, high-power movable lamps in the quick travel process, often causes castor to damage in the open air, influences the normal use of light fixture.In addition, in the lower environment of north of china in winter temperature, castor also is easy to be damaged because of low temperature.

Common movable lamps caster wheel structure is as shown in Figure 1, comprises support and runner, and this support is fixed on the runner through turning cylinder, and turning cylinder passes the center of circle of runner, thereby moves through the rotation drive movable lamps of runner.Support is linked to each other with the top board that links to each other with biside plate by two blocks of side plates that are provided with in opposite directions, because the weight of movable lamps when this support caster wheel moves, is often damaged castor on uneven road.

In addition, the runner of traditional castor generally uses the PP material, its advantage be resistance of taxing little, stronger shock resistance arranged; And have excellent chemical inertness, acid and alkali resistance, salt liquor, insulating power, still; Its shortcoming that has is: when low temperature, becomes fragile, and not wear-resisting, and be prone to aging.

Summary of the invention

The technical matters that the present invention will solve is, the defective of sensitive for damages provides a kind of and improved load-carrying capacity and leaned to one side the impulsive force caster wheel when castor moves in the prior art, and it is difficult for being damaged.

The technical matters that the present invention further will solve is, a kind of open-air mobile security failure-free movable lamps also is provided.

For reaching above-mentioned purpose; According to the present invention; A kind of castor is provided, comprises runner and support, the turning cylinder in the center of circle of said support through passing said runner is fixed on the said runner; Said support comprises symmetrical both sides and the top board that links to each other with these both sides, and each sidepiece of said support comprises:

Have first side plate that can make the hole that said turning cylinder passes,

Be positioned at the said first side plate both sides, and outward extending obliquely two reinforced plates of vertical side of said first side plate in edge, and

Lay respectively at the both sides of said two reinforced plates, and two second side plates that extend in the plane parallel with said first side plate along the vertical side of said two reinforced plates respectively.

In caster wheel according to the invention, preferably, the angle of inclination of said two reinforced plates is 105～165 degree, and more preferably 120～150 degree most preferably are 135 degree.

In caster wheel according to the invention, wheel and foreign steamer in said runner comprises, wherein, said interior wheel is processed by the PU material, and said foreign steamer is processed by PP and POE composite material.

In caster wheel according to the invention, preferably, said PP and POE composite material comprise the POE of 15～20 parts of PP and the parts by weight of 100 parts of parts by weight.

For reaching above-mentioned purpose, according to the present invention, a kind of movable lamps is provided also, comprise above-mentioned caster wheel.

Castor of the present invention through the improvement of supporting structure, has improved the load-carrying capacity and the anti-lateral impact power of castor, makes it more durable, is difficult to be damaged.

In addition, castor of the present invention also improves the material that runner partly uses, and makes it further have low temperature resistant performance.Therefore, that castor of the present invention and the movable lamps that possesses this castor keep is motor-driven, flexible characteristic the time, can also tolerate the harsh environment of low temperature further, makes it more safe and reliable.And because the material that the improved castor of the present invention adopts is common materials, cost is almost constant, so good application prospect is arranged.

In the runner part of castor of the present invention, wheel adopts the PU material in it.Because the resistance to low temperature of PU material is superior to the PP material, and elasticity by force, not wear-resisting, so employing PU material is as the advantage of interior wheel: low temperature resistant, damping and the external impulsive force of reduction.In addition, in runner, also adopt the mixture of PP and POE to process.Because POE is good thermoplastic elastomer, the interpolation of POE can improve processing fluidity, toughness, impact strength, the resistance to low temperature of PP material.Therefore, the runner of castor of the present invention has the good characteristics of strong shock resistance, good damping effect and resistance to low temperature.

Movable lamps of the present invention, owing to adopted above-mentioned castor, moving in the open air is more reliable, and also unaffected in low temperature environment, the characteristics such as quick, motor-driven, flexible that can bring into play better that movable lamps moves in the open air.

Description of drawings

To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:

Fig. 1 is the structural representation of castor of the prior art;

Fig. 2 is the front view according to castor of the present invention;

Fig. 3 is the planar view of castor shown in Figure 2;

Fig. 4 is the lateral plan of castor shown in Figure 2;

Fig. 5 is the backplan of castor shown in Figure 2;

Fig. 6 is the birds-eye view of castor shown in Figure 2.

The specific embodiment

Fig. 1 is the structural representation of castor of the prior art, and Fig. 2 is the structural representation according to castor of the present invention.As can be seen from Figure 2, compare with caster wheel structure shown in Figure 1, castor of the present invention improves existing Castor structure.

As shown in Figure 2, castor of the present invention also comprises runner 1 and support 2, and support 2 is fixed on the runner 1 through a turning cylinder (Fig. 2 is not shown), and turning cylinder passes the hole 3 on the support 2, and hole 3 also is the center of circle of runner 2.Turning cylinder can be screwed onto with hole 3, perhaps links to each other with other suitable manner.In addition, support 2 also comprises symmetrical both

sides

21,22 and the top board 23 that links to each other with these both sides 21,22.Though the material of both

sides

21,22 and top board 23 can be different each other, preferably, they are processed by same material.In addition, preferably, in order easily to keep the weights such as light fixture on the support, in working order, promptly in the castor erectility, top board 23 is parallel with horizontal surface.Because

sidepiece

21 and 22 is symmetrical, its structure is identical, so only describe (this sentences 21 is example) as an example with a sidepiece.

Sidepiece 21 comprises first side plate 211, two reinforced plates 212 and two second side plates 213.First side plate 211 is provided with the hole 3 that turning cylinder is passed, and tiltedly extends along two vertical and lateral flares of first side plate 211, has formed two reinforced plates 212 that lay respectively at first side plate, 211 both sides.Second side plate 213 extends along the vertical side of reinforced plate 212, and is positioned at the plane parallel with first side plate 211.Owing to be to stretch out from two vertical sides of two reinforced plates 212 respectively, two second side plates 213 of formation are positioned at the both sides of two reinforced plates 212 separately.

Because this structure of support 2, make between first side plate 211 and the reinforced plate 212, all can form stable gusseted between reinforced plate 212 and second side plate 213, the load-carrying capacity of castor and anti-lateral impact ability are improved.When this castor moved in rugged field, it more can bear from the load on the support, and not fragile.

In addition, in a preferred embodiment, the angle of inclination of two reinforced plates is 105～165 degree, more preferably is 120～150 degree, most preferably is 135 degree.Should be appreciated that here " angle of inclination " is meant, between each reinforced plate 212 and first side plate 211 in plane included angle that the vertical side of first side plate 211 forms.

Can link together reliably through the mode of any appropriate such as welding, gluing, welding between the various piece of support 2.In addition, support 2 also can be integrated.

Fig. 3,4,5 and 6 is respectively planar view, lateral plan, backplan and the birds-eye view of castor shown in Figure 2.As can be seen from Figure 3, though first side plate 211, reinforced plate 212 and second side plate 213 are not positioned at same plane, all be parallel to each other between their vertical side edge.In addition, the shape of each first side plate 211, reinforced plate 212 and second side plate 213 also is not limited to graphic shape, optionally can make the shape of other any appropriate.

In a preferred embodiment, wheel 11 and foreign steamer 12 in runner 1 comprises are shown in Fig. 2 and 3.Adopting the PP material to process different with traditional castor is that the runner 1 of this embodiment adopts material different to process.Wherein, interior wheel 11 adopts the PU material to process, and foreign steamer adopts PP and POE mixture to process, and is for example injection molded.In addition, in a more preferred embodiment, in PP that foreign steamer is used and the POE mixture, comprise the POE of 15～20 parts of PP and the parts by weight of 100 parts of parts by weight.Like this, that the interior wheel of PU material has is low temperature resistant, damping has the advantage that reduces external shock power, and the foreign steamer of PP and POE mixture with singly compare with PP, improved processing fluidity, toughness, impact strength and resistance to low temperature.Because the material of selecting for use is common used material, almost do not increase in the cost aspect, so castor of the present invention has application promise in clinical practice.In addition, interior wheel 11 can link together through suitable manner with foreign steamer 12, for example welding, mode such as gluing.

In addition, in a preferred embodiment, a kind of movable lamps comprises above-mentioned caster wheel, and this movable lamps is used for illumination in the open air etc.Owing to adopted above-mentioned castor, this movable lamps is more safe and reliable, has brought into play quick, motor-driven and flexible characteristic better.

Application example

In a light fixture, adopted caster wheel after the material improvement of the structure of support 2 and runner 1, and carried out following test:

A, become 30 ° of angles to be fixed on the vertical wheel abrasion wear test machine with horizontal surface the castor wheel shaft, bear the 50KG load, with the speed of 1.4m/s at the uniform velocity one hour, wheel did not have noticeable wear, wheel shaft does not have stuck and other bad phenomenon, and test result is qualified.

B, 4h is carried out on the rough out of doors road surface of light fixture continuously, implementation speed is 1.4m/s, and wheel does not have noticeable wear, wheel shaft does not have stuck and other bad phenomenon, and test result is qualified.

C, low-temperature impact test: castor is placed in-25 ℃ the low temperature environment and kept 4 hours, in 2S, castor forwarded in 55 ℃ of environment then and kept 4 hours, so carry out 6 circulations, the outward appearance and the function of sample are normal, and test result is qualified.

D, low temperature drop test: castor is placed in-25 ℃ the low temperature environment and kept 4 hours, with 1 meter height castor is running condition rapidly and does the movement of falling object downwards, wheel can normal rotation, crack-free and metaboly, and test result is qualified.

E, low-temperature impact test: castor is placed in-25 ℃ the low temperature environment and kept 4 hours, use the ram hammer of 1kg then, impact wheel once from 1 meter height, wheel can normal rotation, crack-free and metaboly, and test result is qualified.

The above is merely representative embodiment of the present invention, does not limit the present invention in any way, and all any modifications of within spirit of the present invention and principle, being done, is equal to replacement or improvement etc., all should be included within protection scope of the present invention.

Claims

1. castor; Comprise runner and support, the turning cylinder in the center of circle of said support through passing said runner is fixed on the said runner, it is characterized in that; Said support comprises symmetrical both sides and the top board that links to each other with these both sides, and each sidepiece of said support comprises:

Have first side plate that can make the hole that said turning cylinder passes,

2. castor according to claim 1 is characterized in that, the angle of inclination of said two reinforced plates is 105～165 degree.

3. castor according to claim 2 is characterized in that, the angle of inclination of said two reinforced plates is 120～150 degree.

4. castor according to claim 3 is characterized in that, the angle of inclination of said two reinforced plates is 135 degree.

5. castor according to claim 1 is characterized in that, wheel and foreign steamer in said runner comprises, and wherein, said interior wheel is processed by the PU material, and said foreign steamer is processed by PP and POE composite material.

6. castor according to claim 5 is characterized in that, said PP and POE composite material comprise the POE of 15～20 parts of PP and the parts by weight of 100 parts of parts by weight.

7. a movable lamps is characterized in that, comprises each described castor in the claim 1～6.