CN101874916B

CN101874916B - Fire hose reeling and unreeling disk

Info

Publication number: CN101874916B
Application number: CN2009101358728A
Authority: CN
Inventors: 王召信; 高振林; 黄开春; 王肇泰
Original assignee: Individual
Current assignee: Gao Zhenlin; HUANG KAICHUN; Wang Zhaoxin
Priority date: 2009-04-30
Filing date: 2009-04-30
Publication date: 2012-07-04
Anticipated expiration: 2029-04-30
Also published as: CN101874916A

Abstract

The invention discloses a fire hose reeling and unreeling disk which can roll to the destination by manually dragging, automatically unreels when dragging after a disconnectable coupling is in butt joint and can automatically coil the hose onto a take-up spool in the dragging or pushing process after finishing the task. Because of saving manual transportation and manual unreeling, each section of hose can be lengthened than before so as to reduce the amount of the disconnectable coupling; because of automatically reeling, the invention not only greatly lightens the labor intensity of firemen but also eliminates the possibility of freezing hands of the firemen; because the hose does not rub with the ground or fold in the reeling and unreeling process, the service life of the hose is greatly prolonged. The reeling and unreeling disk has simple and reasonable structure, is an effective tool for fire extinguishing systems and can serve as the necessary tool for reeling and unreeling plastic flexible pipes for irrigating when farmers drain and irrigate.

Description

Fire hose reeling and unreeling disk

Technical field

The present invention relates to a kind of fire service inventory, specifically just relate to a kind of fire hose reeling and unreeling disk.

Background technology

The method of fireman's folding and unfolding rotary hose mainly contains two kinds at present, and a kind of is no dish folding and unfolding; A kind of is that the dish folding and unfolding is arranged.

The method of no dish folding and unfolding is a kind of folding and unfolding method efficiently, and its program roughly is: during take-up, after the fireman pulls the near-end flexible joint of same rotary hose to the flexible joint of rotary hose far-end, and then begin to coil from the burst of rotary hose.The benefit of doing like this is, the fireman forwards makes great efforts rotary hose to emit at the flexible joint of the hand-held fire hose of near-end then when putting band, and generally speaking, rotary hose will be put into the end always; The fireman is joined the flexible joint of the flexible joint of near-end and a last joint far-end, and the flexible joint of picking up this water saving tengential belt far-end then just can at the double, quick march.

Fixed draw off gear is that a take-up reel is installed on fire fighting truck, is fixed on the near-end of rotary hose on the take-up reel in the time of take-up, rotates take-up reel and just can pack up rotary hose.The maximum shortcoming of this method is exactly that so rotary hose just must drag on the ground, this has just strengthened the wearing and tearing of rotary hose because of fireman's rotary hose race in tow.The rotary hose used of our fire house all is the fiber object of braiding now, and is extremely not wear-resisting.So up to the present fixed draw off gear also fails to promote.As for no dish folding and unfolding, though wearing and tearing are considerably also arranged, much better after all.A problem that can not be ignored is arranged here: the one, the length of every water saving tengential belt generally all is 20 meters, this is understood that, and is oversize then overweight; And the fireman just very likely skews when at one end putting band on the way, and that will more waste time.And just determined that so flexible joint certainly will increase, also just increase the time that connects certainly and increased the probability of evaporating, emitting, dripping or leaking of liquid or gas.In addition the fireman is the waist work of bending always in take-up, this a kind of high-intensity work.And crucial problem also not exclusively is the big this point of labour intensity, and we know that the north of China can be as cold as the degree that the water freezes as it drips in winter; Just think; If the fireman is after putting out big fire, original is water from head to foot just, and hand is all numb with cold; At this moment also to lose no time to hurry in and receive rotary hose (evening just be frozen into ice lolly), whether a bit too cruel?

As for peasant's folding and unfolding situation of using dimension to mould pipe of irrigating the fields basically also is like this, has not just given unnecessary details at this.

Summary of the invention

The present invention is a kind of dish draw off gear that has.It is that with the different place of draw off gear in the past folding and unfolding dish of the present invention is movable.That is to say, Yi Bian Yi Bian this take-up reel is to roll on the ground to receive (putting) rotary hose.The benefit of this device just is, the one, do not drag rotary hose on ground, and unlikelyly cause wearing and tearing; The 2nd, can increase the length of rotary hose widely, reduced flexible joint; The 3rd, from the work of manual folding and unfolding band completely, free the fireman, both alleviated labour intensity, also improved efficient; Certainly key is to use hand direct contact water tengential belt, has reduced the danger of frostbite.

We know that the outer of take-up reel (being meant driving disc spacing pressing here) lands, take-up spool (being fixed on the clutch plate) winding water tengential belt.Because the external diameter of driving disc spacing pressing is greater than take-up spool, that is both linear velocities exist gap.If take-up spool and driving disc spacing pressing rotate synchronously, the length of the rotary hose that Webbing take-up device is received or put when ground surface and the distance of its rolling are inconsistent certainly, and the situation of rotary hose and ground friction so just still can take place; More complicated is, the diameter of the interior axle of coiling rotary hose is constantly changing---the moving thickness that will increase or reduce one deck rotary hose a week of clutch plate revolution in the process of receiving or putting.That is to say that the diameter of take-up spool becomes gradually to open state in the course of the work.This has also just determined between driving disc spacing pressing and the clutch plate gear ratio to be arranged, and can not use fixing gear ratio again.The present invention utilizes driving disc spacing pressing when rolling, to drive a variable speed drive, and the gear ratio of this variable speed drive is constantly to change, and drives clutch plate through friction pulley again, thereby reaches the purpose of receiving or putting fire hose.

After all, the present invention is exactly the buncher that a kind of coaxial, gear ratio changes by fixed coefficient.

Description of drawings

Fig. 1 is the outside drawing of complete machine;

Fig. 2 is the profile of complete machine;

Fig. 3 is speed changer and driving disc spacing pressing;

Fig. 4 is the locking sketch map of take-up spool and driving disc spacing pressing, clutch plate, follower disk

Among the figure: the 1st, the guard shield of driving disc spacing pressing; The 2nd, driving disc spacing pressing; The 3rd, the screw of fixed gear ring; The 4th, gear ring; The 5th, connecting rod; The 6th, the axle of variable speed drive; The 7th, the pull bar of this machine; The 8th, axle sleeve; The 9th, be used for locking the pin-and-hole of complete machine main shaft; The 10th, the lining in the axle sleeve; The 11st, main shaft; The 12nd, the fixing nut of driving disc spacing pressing; The 13rd, ball bearing; The 14th, thrust bearing; The 15th, the pedestal of variable speed drive lower end; The 16th, the friction pulley of transmission torsion; The 17th, the hollow shaft of coiling rotary hose; The 18th, clutch plate; The 19th, bevel gear; The 20th, thrust bearing; The 21st, hold-down nut; The 22nd, follower disk; The 23rd, the fixing support member of variable speed drive; The 24th, lock hole; The 25th, be used for being close to the spring of clutch plate; 4-1 is the base plate of lock; 4-2 and 4-3 are the locking pins; 4-4 is the handle of locking pin

Embodiment

This rotary hose folding and unfolding dish simple in structure, as shown in Figure 2 installed follower disk 22, successively with clutch plate 18, variable speed drive axle 6, driving disc spacing pressing 2 that take-up spool 17 is associated on main shaft 11, two ends are with nut 12 lockings.Installed thrust bearing 14, connecting rod pedestal 15, friction pulley 16, connecting rod 5, bevel gear 19, thrust bearing 20 successively on the axle 6 of variable speed drive, support member 23 (referring to Fig. 3) also locks with nut 21; The gear ring 4 that meshes with bevel gear 19 is installed on the driving disc spacing pressing 2, and installs guard shield 1 additional in its outer rim.When we with pin main shaft 11 after pull bar 7 is associated in, push-and-pull folding and unfolding dish the time, driving disc spacing pressing 2 just drives gear ring 4 and rotates again, but the axle 6 of variable speed drive does not rotate thereupon, so gear ring just drives bevel gear 19 rotations.Bevel gear 19 will drive the six roots of sensation rigid connecting rod 5 and the connecting rod pedestal 15 that are installed in its underpart certainly and rotate together, and the rotation of connecting rod has driven friction pulley 16 again and rotated, and just drives clutch plate 18 certainly and has rotated.

Key is that the machined of friction pulley 16 has screw thread, the threads engaged on this screw thread and the variable speed drive axle 6, so, while rotating on speed changer, moves friction pulley.Suppose that we are positive silks with the screw thread of friction opinion machined on transmission shaft, be not difficult to analyze and learn: when our right view 2, when driving disc spacing pressing was rotated counterclockwise, (overlooking) bevel gear 15 just turned clockwise, and rose gradually thereby drive friction pulley 16.Because the speed ratio of gear ring and bevel gear is fixed, then the rising of friction pulley has determined that just the speed ratio of clutch plate and driving disc spacing pressing is gradually from large to small, and this we are needed in the take-up process just.Certainly, it also is the same putting the band process, only in the other direction.In order to guarantee the smooth working of whole folding and unfolding dish ability, variable speed drive one has three, and even cloth is installed in the position of the respective cross-section of the inboard main shaft of driving disc spacing pressing.

Can see that from Fig. 2 we are split into groove to the dowel hole of axle sleeve 8, purpose is exactly in order promptly to associate axle sleeve and main shaft, when the fireman executes the task, just can arrive the scene of a fire against time earlier like this.In addition, we also consider if the fireman is drawing fire hose will arrive distant place, will cause the loose situation of rotary hose oneself.What if? We have just added a lock (4-1), and lock is installed in rotary hose flexible joint place, and two ends are inserted pin-and-hole and the clutch plate on the follower disk, the pin-and-hole on the driving disc spacing pressing respectively.Like this, when we are drawing the folding and unfolding dish when moving, because take-up spool is being followed the driving disc spacing pressing rotation always, just fixedly rotary hose is unlikely loose.And need it's time to, as long as unload this lock down, just can decontrol rotary hose flexibly.Because this lock is that institute adds after the rotary hose harvesting, thus although bother a little some when installing, may delay a time,, unimportant.

Obviously, the above embodiment of the present invention only be for clearly the present invention is described and is done for example, and be not to be qualification to embodiment of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or changes.Here need not, also can't give exhaustive all embodiments.And that these belong to is that spirit of the present invention is extended out, conspicuous variation or change still are among protection scope of the present invention.

Claims

1. rotary hose folding and unfolding dish is characterized in that by main shaft and driving disc spacing pressing, variable speed drive, clutch plate, take-up spool and the follower disk, the pull bar seven big parts that are installed in successively on the main shaft are formed; Its driving disc spacing pressing and follower disk are arranged at the two ends of main shaft respectively, directly contact with ground; The inboard outer rim position of driving disc spacing pressing is equipped with fluted disc, and this fluted disc is associated with bevel gear on the variable speed drive; Bevel gear is installed in the upper end of variable speed drive axle, and the variable speed drive axle then is vertically mounted on the main shaft; Bevel gear is associated with the pedestal of lower end through the rigid connecting rod of the six roots of sensation around the variable speed drive axle; Between bevel gear and pedestal, friction pulley is installed; The internal thread of this friction pulley is associated with screw thread on the variable speed drive axle; The outer is associated with clutch plate, and simultaneously the relevant position of periphery is processed with the radial direction through hole that six apertures are slightly larger than the shank diameter that is rigidly connected and is associated with the six roots of sensation rigid links of bevel gear; Its variable speed drive has three, and even cloth is on the same cross section of the inboard relevant position of driving disc spacing pressing, folding and unfolding dish main shaft; The position of axle between bevel gear and pedestal of this device is processed with screw thread and matches with the internal thread of friction pulley; Like this when main shaft is locked, when fluted disc on the driving disc spacing pressing drives the bevel gear rotation; Bevel gear just drives friction wheel from rotation through six roots of sensation connecting rod; And friction pulley just can be different and respectively to the outer end or the interior end motion of variable speed drive axle according to the direction of rotating when rotating; Just contact and transferring power, thereby reach the purpose of speed change with the different peripheries of clutch plate.

2. rotary hose folding and unfolding dish as claimed in claim 1 is characterized in that main shaft is associated with pull bar; When not implementing folding and unfolding, main shaft and pull bar relative motion, whole dish rotary hose can arbitrarily shift; When main shaft and pull bar locking, driving disc spacing pressing drives variable speed drive and implements draw-in and draw-off function when rotating.

3. rotary hose folding and unfolding dish as claimed in claim 1, its characteristic are that also a side of clutch plate is associated with friction pulley, and opposite side then directly drives take-up spool folding and unfolding rotary hose.