CN2145810Y

CN2145810Y - Water gate open/close apparatus

Info

Publication number: CN2145810Y
Application number: CN 92243676
Authority: CN
Inventors: 洪瑞明; 洪国浩; 洪国材
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-12
Filing date: 1992-12-12
Publication date: 1993-11-10
Anticipated expiration: 2002-12-12

Abstract

The utility model relates to a water gate open and close device, which is characterized in that a water gate which can move up and down is arranged in a water gate frame, the upper frame of the water gate frame has a control box, a governing box, and a driving shaft extending through the control box and the governing box; the water gate is connected with a pin shape rack bar whose upper section extends through the upper frame of the water gate frame and the control box, and the pin tooth of the pin shape rack bar is engaged with a small gear in the control box; the control box can be operated to open and close the water gate; the hand brake device of the control box can be opened; when the water gate descends by means of the gravity, a speed regulating machine in the governing box can be driven by the driving shaft to produce centrifugal force to brake an automatic braking device connected between the control box and the governing box; therefore, the descending speed of the water gate can be limited automatically, and the water gate can be ensured to descend safely.

Description

Water gate open/close apparatus

The utility model relates to a kind of water valve door leaf headstock gear.

The headstock gear of general water valve door leaf is rising or the decline that the manual operation Hand brake apparatus is controlled the water valve door leaf, when opening the hydromatic brake device, because of acceleration of gravity, the water valve door leaf takes place easily to descend rapidly, make the decrease speed of the uncontrollable water valve of Hand brake apparatus door leaf and the situation of causing danger.

The purpose of this utility model provides a kind of driving shaft that starts when borrowing water valve door leaf acceleration of gravity to descend, and the driving governor produces centrifugal pressure braking decelostat, with the rotating speed of restriction driving shaft, and the water valve door leaf headstock gear that water valve door leaf decrease speed is restricted.

The purpose of this utility model is achieved in that

Because adopt such scheme, the utility model has limited water valve door leaf decrease speed effectively, ensure the safety that the water valve door leaf descends.

Further specify the utility model below by embodiment and accompanying drawing.

Fig. 1 is the utility model example structure oblique view.

Fig. 2 is the utility model embodiment construction profile.

Fig. 3 is a plan view on Fig. 2 A-A line.

Fig. 4 is Fig. 2 B-B line upper side figure.

Fig. 5 is the expansion side view of Fig. 2 C-C line, is the brake structure.

Among the figure: 1. many of pin type tooth bars " 1 " are sold tooth, 2. water valve door leaf, 3. control cabinet, 4. pinion, 5. wheel shaft, 6. driving shaft, 7. reductor, 8. one-way clutch, 9. Hand brake apparatus, 10. manual handle, 11. governors, 12. decelostats, 13. brake wheel, 14. brake ribbons, 15. fixed axis, 16. nuts, 17. screw rod, 18. keys, 19. reversing plates, the 20.L type lacks portion, 21. ball, 22. bearings, 23. manual handle fitting portions, 24. transverse arm, 25. 2 pins, 26. 2 movement arms, 27. two clockwork springs, 28. 2 weights, 29. eccentric projections, 30. sliding panel, 31. rubbing surfaces, 32. friction plates, 33. governing box, 34. rollers, 35. slip keyways, 36. slide key, 37. clockwork springs, 39. nuts, 40. water valve, 41. upper ledges, 42. bolts

Shown in Fig. 1～3, water valve of the present utility model door leaf headstock gear is to establish a water valve door leaf 2 of wanting upper and lower displacement in water valve 40 frameworks, there are a control cabinet 3, a governing box 33 and to run through the driving shaft 6 of control cabinet 3 and governing box 33 above the upper ledge 41 of water valve 40 frameworks, be connected with a pin type tooth bar 1 on the water valve door leaf 2, the body 1 of pin type tooth bar 1 ' upward be provided with most pin teeth 1 with equidistant from distance "; it is " meshing mutually with the pinion 4 that is located in the control cabinet 3 that the epimere of pin type tooth bar 1 runs through the upper ledge 41 and the control cabinet 3 of water valve 40 frameworks, is located at the majority pin tooth 1 of pin type tooth bar 1.

As shown in Figure 4, box tooth bar 1 runs through control cabinet 3, in control cabinet 3, and the pin tooth 1 in pin type tooth bar 1 front " meshing mutually with pinion 4, the body 1 of pin type tooth bar 1 reverse side ' establish a roller 34 up and down respectively, with 1 upper and lower displacement of guide pins type tooth bar; 6 of the wheel shaft 5 of pinion 4 and driving shafts are provided with reductor 7, reductor 7 be by reduction gearing 7 ', 7 " constitute; One Hand brake apparatus 9 is arranged in the control cabinet 3, and it and 6 of driving shafts have an one-way clutch 8, and the manual handle 10 of Hand brake apparatus 9 is located at control cabinet 3 outsides; Shown in Fig. 2,3, there are a governor 11, a decelostat 12, decelostat 12 to be connected with between control cabinet 3 and governor 11 in the governing box 33, and formation water valve door leaf headstock gear, decelostat 12, decelostat 12 is connected with between control cabinet 3 and governor 11, and constitutes water valve door leaf headstock gear, and there is a slide key 36 in sliding panel 30 central authorities of decelostat 12, close in slip keyway 35 in its corner, and there is a clockwork spring 37 in sliding panel 30 stage casings.

As shown in Figure 5, Hand brake apparatus 9 is outer rim winding one brake ribbons 14 at brake wheel 13, one end of brake ribbon 14 is fixedly arranged on fixed axis 15, end is connected with a nut 16 in addition, it and another be located at the sidewall 3 of control cabinet 3 ' on 39 on the nut screw rod 17 that is spirally connected jointly, form screw rod 17 rotation directions and fix, and axially can being free to slide of screw rod 17.Protrude in the sidewall 3 of control cabinet 3 ' on 39 on the nut screw rod 17 that is spirally connected jointly, form screw rod 17 rotation directions and fix, and axially can the sliding automatically of screw rod 17.Protruding on the screw rod 17 in sidewall 3 ' outside of control cabinet 3 has manual handle 10, at

brake wheel

13 and 6 of driving shafts one-way clutch 8 is arranged, therefore limit driving shaft 6 only in figure arrow show that direction rotates; A sheathed reversing plate 19 on driving shaft 6 and the key 18, have most L types to lack in the portion 20 on it ball 21 is arranged, each ball 21 and L type lack 20 in portion and establish a clockwork spring 38, and brake wheel 13 outer rims have brake ribbon 14, only can show forward to the direction rotation, and can't be to counter-rotation.

Driving shaft 6 is to borrow the two corners of bearing to merge the two side (see figure 3)s that stretch out in control cabinet 3, wherein an end forms manual handle fitting portion 23, fitting portion 23 can be connected with a motor, the other end stretches in the governing box 33, governor 11 is by a transverse arm 24, two pins 25, two movement arms 26, two clockwork springs 27 and two weights 28 constitute, wherein transverse arm 24 is located on the driving shaft 6, transverse arm 24 2 ends that are located in the governing box 33 connect a movement arm 26 by pin 25 respectively, one end of each movement arm 26 has a weight 28 respectively, and the other end of movement arm 26 has an eccentric projection 29, the eccentric projection 29 of movement arm 26 1 ends of governor 11 is sliding panel 30 outsides that are connected to decelostat 12, sliding panel 30 inner faces have a friction plate 32, and it is connected to rubbing surface 31, and rubbing surface 31 is connected with in control cabinet 3.

Control cabinet 3 is to be fixed in above the upper ledge 41 of water valve 40 frameworks with anchor bolt 42, pin type tooth bar 1 runs through control cabinet 3 and upper ledge 41, and be located at manual handle 10 in the fitting portion 23 of driving shaft 6, when rotation manual handle 10 and the arrow that makes driving shaft 6 rotate in Fig. 5 show a direction, be that pinion 4 will rotate in Fig. 4 arrow by reductor 7 and show when b rotates, driving shaft 6 is fixed on the rotation direction of brake wheel 13 by one-way clutch 8, promptly can't rotate in the rightabout that arrow shows a, therefore water valve door leaf 2 can not descend, so water valve 40 can be opened.

When opening and closing water valve 40, the manual handle 10 of Hand brake apparatus 9 is rotated to other direction, rotate with drive screw 17, borrow be located at control cabinet 3 sidewalls 3 ' nut 39 interaction and screw rod 17 is slided to the left of Fig. 5, the nut 16 that will be located at brake ribbon 14 simultaneously slides at Fig. 5 left, the nut 16 that will be located at brake ribbon 14 simultaneously slides about Fig. 5, brake ribbon 14 is loosened, can make brake wheel 13 voltage stabilizings, therefore water valve door leaf 2 and pin type tooth bar 1 will descend by means of its gravity, make driving shaft 6 rotate the rightabout that shows a direction at Fig. 5 arrow, brake wheel 13 is also rotated simultaneously with driving shaft 6 by one-way clutch 8.Water valve door leaf 2 will be quickened by acceleration of gravity, and the rotation of driving shaft 6 also is accelerated, but owing to reversing rapidly of driving shaft 6 starts governor 11, force sliding panel 30 to be crimped on rubbing surface 31, and sliding panel 30 is braked along with driving shaft 7 revolutions, thereby the decline rapidly of restriction water valve door leaf 2, so that the 2 one-tenth constant speed in water valve door leaf descend.

Claims

1, a kind of water valve door leaf headstock gear, it is made up of water valve door leaf, Hand brake apparatus, it is characterized in that also being provided with pin type tooth bar 1, control cabinet 3, governing box 33 and driving shaft 6 etc., but in water valve 40 frameworks, establish the water valve door leaf 2 of a upper and lower displacement, control cabinet 3, governing box 33 are arranged above the upper ledge 41 of water valve 40 frameworks and run through the driving shaft 6 of control cabinet 3 and governing box 33; Be connected with a pin type tooth bar 1 on the water valve door leaf 2, its epimere runs through the upper ledge 41 and the control cabinet 3 of water valve framework, and the majority pin tooth on the pin type tooth bar is meshing mutually with the pinion that is located in the control cabinet; Operation control box 3 opens and closes water valve door leaf 2, Hand brake apparatus 9 is arranged in the control cabinet 3, and the governor that drives in the governing box by driving shaft 6 when water valve door leaf 2 descends produces centrifugal pressure, be connected with decelostat 33 of control cabinet 3 and governing boxs, the decrease speed of volitional check water valve door leaf 2 with braking.