CN102390357B - Multi-purpose ceramic-sealed pneumatic windscreen wiper - Google Patents

Abstract

The invention relates to a wiper device for brushing rain (snow) water on windscreen of a locomotive, comprising a wiper system, a swinging air cylinder and a reverse valve and a speed adjusting gear, wherein the wiper is made of high-strength rubber material with abrasion resistance, high temperature difference resistance and ageing resistance. A gear is meshed with a rack to drive the frame structure form, which has uniform work stress and does not deform, of the swinging air cylinder. Two ends of a rack frame are attached with wearable guide sleeves. A swinging air cylinder piston adopts a sealing element with pressurized seal compensation function. A ceramic slide plate sealing structure with strong work reliability is quoted in a two-position four-way reversing valve. A frequency and speed adjusting valve adopts an exhaust throttling work mode. An exit shaft of a main valve body is provided with a rain cover of a rainproof plate. The windscreen wiper of the invention not only has a direct-operated windscreen wiper which can be directly operated on the main body, but also has a remote control windscreen wiper which can be operated on a remote control operation panel. The windscreen wiper is featured with rational structure, work reliability and long service life, conquers the disadvantages of existing windscreen wiper and is a safe and ideal multi-purpose windscreen wiper with strong practicability.

Description

Multi-purpose ceramic-sealed pneumatic windscreen wiper

Technical field

The novel functional component relating on locomotive, automobile, oil drilling platform, colliery transportation means etc. of the present invention, rain (snow) water on the Windshield such as a kind of energy scraping express locomotive, make driver's sight line clear, to guarantee the pneumatic wiper device of high-mobility, multipurpose, wheeled vehicle of traffic safety.

Background technology

Now for locomotive, the change-over valve of the new type pneumatic wiper on automobile etc. adopts slide column type commutating structure mostly, several roads rubber seal is set on traveller conventionally, pressurized seal is mainly leaned on the magnitude of interference of seal ring, and the factor that affects the magnitude of interference is a lot, the working accuracy of for example valve opening, the quality of Rubber Parts, ambient temperature, the cleanliness level of source of the gas etc., the difficulty that will all control well to these factors is larger, in addition, between the metal piece of Rubber Parts and laminating work, exist all the time binding force, the size of this binding force is both relevant with the compressed amount of Rubber Parts, also the time inactive with Windshield Wiper is relevant, down time is longer, amount of compression is larger, binding force is also just larger, and the Windshield Wiper of locomotive etc. only uses sleet talent, down time is longer at ordinary times, when again starting, often because binding force is excessive, cannot start, in order to overcome above-mentioned shortcoming, have to adopt the version that sealed increscence amount is less, but facts have proved the have more than is needed how long just wearing and tearing gas leakage of this seal ring, ordering about air pressure declines, thrust on rain brush also declines thereupon, when the locomotive of high-speed cruising can be handed over, tend to cause because thrust is not enough and " fly brush " accident (brushing piece and glass surface depart from), Windshield Wiper cannot normally be worked, simultaneously, seal ring in change-over valve will repeatedly pass through aperture in commutation process, easily by aperture, scratched, also can cause gas leakage, at the new type pneumatic wiper of use, also have to adopt and rotate tabletting type direction reverser, the shortcoming of this structure is that tumbler is steel part, by casting die, it is copper (aluminium) part, in switching process, copper (aluminium) part is very easily by plucking, wearing and tearing, thereby pressurized seal is also more difficult to get effective assurance, in addition, the conducting structure that Windshield Wiper swings reservoir mainly contains two kinds, one is rack-and-gear driving type, another kind is crank throw oscillating type, in rack-and-gear driving type, tooth bar is opening-like, and set off without guiding wear-resistant strip, easily produce impacting type wearing and tearing, in crank throw oscillating type, axostylus axostyle will bear greater impact power repeatedly, uneven wear is serious, damage rate is higher, speed governing system adopts air inlet restriction mode of operation, after air inlet restriction, can make for unsaturated vapor, operating air pressure declines, cause rain brush bumpy motion, the effect that net rainfall (snow) water is scraped in impact, due to above-mentioned new type pneumatic wiper existing problems, also have now and adopt electric wiper, but electric wiper in use also comes with some shortcomings, the startup power supply that is mainly motor is excessive, easily burn coil, for colliery, place, oil field is dangerous, and electric wiper is expensive, use new type pneumatic wiper is safe and reliable.

Summary of the invention

The present invention is novel is improved raising on former ceramic seal type pneumatic water scraper for locomotive patent (ZL200520040607.9) basis, many innovative contents have been increased, object be to provide a kind of inner structure more rationally, higher, the longer service life of functional reliability, purposes multipurpose ceramic sealed type pneumatic wiper device widely, principal item: one is straight manipulation standard ceramic seal type new type pneumatic wiper, claims Z-type; One is remote control type ceramic seal type new type pneumatic wiper, claims y type.

The present invention is novel is such realization: Windshield Wiper is mainly due to Wiper system and pneumatic control system composition, in Wiper system, comprise rain brush, support, brush holder support and brush holder etc., in the mode of pneumatic system, be divided into Z-type and directly manipulate Windshield Wiper processed and y type Long-distance Control Windshield Wiper, both there is similar swing reservoir, makeshift valve, the off-position control cock in addition of Z-type, the exhaust governor valve that band is eliminated the noise, y type also has off-position speed-regulation united valve, the tooth bar swinging in reservoir system has adopted stressed even, indeformable tower structure, working gear in tooth bar frame reliably with tooth bar engaged transmission, high with intensity on the two sides of tooth bar frame, the wear-resistant guiding cover that mill resistance is little, and adopt wear-resisting, aging-resistant rubber-plastics material is made the piston seal with pressurized seal compensate function, be beneficial to improve functional reliability and the durability thereof of sealing, makeshift valve is two-position four way change valve, adopts to have that mill resistance is little, good airproof performance, can have at many dust the ceramic sliding formula hermetically-sealed construction of long-term reliable operation in the harsh environment of greasy dirt, in speed governing system, adopted exhaust throttle mode of operation, during throttling, can not reduce operating air pressure, and can carry out stepless frequency modulation speed governing, in operating mode, exhaust governor valve and off-position control cock that the band of Z-type is eliminated the noise are arranged on Windshield Wiper, by driver's direct control, the off-position speed-regulation united valve of y type is arranged on remote manipulation panel, by driver's Remote, is operated, in addition, in Wiper system, adopted the version of the unsteady brushing piece of branched some bridge-type, brushing piece can be fitted tightly above windshield, be conducive to improve and scrape cleanliness, on oscillating type reservoir shaft support, be also provided with rainproof cover and flashing board, be conducive to eliminate the shaft place hidden danger of leaking, in addition, the off-position governor valve of Long-distance Control Windshield Wiper also can substitute off-position governor valve with band spray control device, spray structure can be electric structure, also can be pneumatic structure, pneumatic spray is more suitable for inflammable and explosive working space.

Based on above-mentioned design, the novel employing of the present invention swings reservoir transferring power reliably; Rain (snow) water on wiper windshield reposefully, adopts earthenware slab slipper seal as two-position four way change valve structure; The exhaust governor valve and the off-position control cock that adopt band to eliminate the noise; Straight manipulation standard Windshield Wiper is directly carried out to stepless frequency modulation speed governing and accurate off-position; Adopt off-position speed-regulation united valve and remote control covering plate structure within 50 meters, rain brush to be carried out to stepless frequency modulation speed governing and accurately off-position control to remote control type Windshield Wiper, above four new technologies is the novel innovative point of the present invention, is core technology.

Novel screen wiper of the present invention can overcome existing Windshield Wiper deficiency technically effectively, makes more reasonable structure, and technology is more advanced, works more reliable, and longer service life, is a kind of safe and reliable high-mobility, multipurpose, wheeled vehicle new type pneumatic wiper.

Accompanying drawing explanation:

Fig. 1 is agent structure schematic diagram of the present invention

Fig. 2 is swing reservoir inner structure schematic diagram of the present invention

Fig. 3 is that the present invention swings reservoir appearance fitting surface and gas channels schematic diagram

Fig. 4 is makeshift valve inner structure schematic diagram of the present invention

Fig. 5 is the birds-eye view of makeshift valve inner structure schematic diagram of the present invention

Fig. 6 is that the present invention directly manipulates Windshield Wiper off-position control cock structural representation processed

Fig. 7 is that the present invention directly manipulates the exhaust governor valve structural representation that Windshield Wiper band processed is eliminated the noise

Fig. 8 is Long-distance Control Windshield Wiper remote control covering plate structure schematic diagram of the present invention

Fig. 9 is the off-position valve arrangement schematic diagram on Long-distance Control Windshield Wiper off-position speed-regulation united valve of the present invention

Figure 10 is the governor valve structural representation on Long-distance Control Windshield Wiper off-position speed-regulation united valve of the present invention

Figure 11-1 is the profile front view that the present invention directly manipulates Windshield Wiper processed

Figure 11-2 are the profile right elevation that the present invention directly manipulates Windshield Wiper processed

Figure 12 is the adapter scheme circuit of Long-distance Control Windshield Wiper of the present invention

Figure 12-1 is the profile schematic diagram of Long-distance Control Windshield Wiper swing reservoir of the present invention and makeshift valve

Figure 12-2 are the profile right elevation of Long-distance Control Windshield Wiper swing reservoir of the present invention and makeshift valve

The off-position valve arrangement schematic diagram that Figure 12-3 are Long-distance Control Windshield Wiper of the present invention

The governor valve structural representation that Figure 12-4 are Long-distance Control Windshield Wiper of the present invention

In figure:

1. rain brush 2. support 3. brush holder support 4. brush arms

5. brushing piece frame 6. brushing piece 7. opening bearing pin 8. rotating shafts

9. back-up block 10. extension spring 11. lateral pin 12. tight-hanged screws

13. swing the exhaust governor valve that reservoir 14. makeshift valve 15. off-position control cock 16. bands are eliminated the noise

The 17. gas source switch 18. source of the gas 19. rotating shaft 20. car shells of working of working

21. shouldered shafts overlap 22. flashing board 23. push pipe 24. rainproof covers

25-1. nut 25-2. nut 26. hand behaviour handle 27. working gears

28. main valve body 29. piston 30. end cap 31. tooth bars

32. tooth bar frame 33. wear-resistant guidings overlap 34. guider screw 35.O shape seal rings

36. cushion rubber 37.y shape seal ring 38. spacer ring 39. antifriction-bearing boxs

40. mounting screw 41. tapped bore 42. tapped bore 43. control valve bodys

44-1. controls cover plate 44-2. remote control cover plate 45. source of the gas cover plate 46. control plungers

47. pottery point part 48. slide block 49. annulate shaft 50. cushion blockings

51.y shape seal ring 52. spill chamber 53. support spring 54. seal rings

55.O shape seal ring 56. fix screw 57. free air diffuser 58. free air diffusers

59.O shape seal ring 60.O shape seal ring 61. off-position valve opening 62.O shape seal rings

63. mounting hole 64. mounting hole 65. off-position valve rod 66. spacing rings

67. off-positions, 68. grooves 69. of shaking hands are inflated annulate shaft 70.y shape seal ring

71. fastening assembly 72. screw thread 73. governor valve body 74. noise silencers

The locking spring 78. remote control cover plate valve bodies of 75. pore 76. hand wheel type metering needle 77.

The large flat seal ring of little flat seal ring 81. steel ball 82. of 79. remote control piston 80.

83.O shape seal ring 84. remote-type coupling 85. nut 86.PU pipes

Outer air chamber 89. air inlet chamber 90. overflow weirs of 87. joint air flue 88.

91. off-position handles 92. are spelled cap 93. air inlet chamber 94. off-position free air diffusers

95. off-position admission port 96. off-positions, the 97. drain hole 98. off-position outlet passageways of giving vent to anger

99. off-position valve pocket 100.O shape seal ring 101. combinaing valve body 102. speed handwheels

103. plug screws 104. stop loose spring 105.O shape seal ring 106. speed governing outlet passageways

107. speed governing, the 108. steel ball 109. speed governing free air diffuser 110. speed governing admission ports of giving vent to anger

111. speed governing air inlet chamber 112. timing throttle pin 113. off-position speed-regulation united valve 114. T-pipe joints

Remote control equipment (RCE) 116. retainer springes of 115. band sprays

The specific embodiment

Below in conjunction with accompanying drawing, to the present invention is novel, be further described.

In Fig. 1, the novel Multi-purpose ceramic-sealed pneumatic windscreen wiper of the present invention is mainly comprised of Wiper system and pneumatic control system, Wiper system is mainly by rain brush 1, support 2, brush holder support 3 and brush arm 4 form, rain brush 1 is comprised of brushing piece frame 5 and brushing piece 6, brushing piece 6 is by wear-resisting wiping, high-low temperature resistant is poor, aging-resistant high strength rubber-plastics material is made, brushing piece frame 5 is made by the good steel member of intensity, by 7 assemblings of opening bearing pin, be arranged on the end of brush holder support 3, the other end of brush holder support 3 is fixedly installed on one end of brush arm 4, the other end of brush arm 4 is fixedly installed on back-up block 9 by rotating shaft 8, on brush arm 4, be also provided with extension spring 10, one end of extension spring 10 buckles on back-up block 9 by lateral pin 11, the other end is connected with the tight-hanged screw 12 being arranged on brush arm 4 tops, during work, by the nut on adjusting tight-hanged screw 12, change the pulling force of extension spring 10, thereby change the thrust of brushing piece 6 on Windshield.

Pneumatic control system is mainly by swinging reservoir 13, the formations such as exhaust governor valve 16, gas source switch 17, work source of the gas 18 and off-position speed-regulation united valve 113 that makeshift valve 14, off-position control cock 15, band are eliminated the noise, makeshift valve 14 is close on a surface that is arranged on swing reservoir 13, the speed governing of Windshield Wiper and off-position control have two types, one is straight manipulation system, exhaust governor valve 16, off-position off-position control cock 15 that speed governing is eliminated the noise with band, be arranged on respectively and swing on the middle part of reservoir 13 and the control cover plate 44-1 of makeshift valve 14, as Figure 11-1, shown in 11-2, another kind is Long-distance Control, with off-position speed-regulation united valve 113, it is installed on the remote manipulation panel away from rain brush 1, distance can be within 50 meters, during speed governing, rotating speed handwheel 102 regulates, during off-position, push off-position handle 91, position as shown in Figure 9, in the middle of swinging the main valve body 28 of reservoir 13, to wearing, put work rotating shaft 19, it is placed in shouldered shaft cover 21, the outer flashing board 22 that is equipped with of shouldered shaft cover, push pipe 23, and be fixedly mounted on casing 20 with nut 25-1, in work rotating shaft 19, on stretching out in the end of shouldered shaft cover 21, it is set with rainproof cover 24, and brush arm 4 and back-up block 9 are fixed on work rotating shaft 19 tops with nut 25-2, and the other end is placed in the inner chamber that swings reservoir 13, working gear 27 is set above, its backward sponson hand behaviour handle 26 is housed, mutual alignment is related to shown in the Fig. 1 of institute.

In Fig. 2 and Fig. 3, on swing reservoir 13, be mainly provided with main valve body 28, piston 29, end cap 30, it in 28 1 sides of main valve body that swing reservoir 13, is the plane that makeshift valve 14 is installed, there is tapped bore 41 and 42 above, in main valve body 28, there are air cavity AA and BB, signal pore K1 and K2, pore A11, 01, B11, 011 and inner air path passage A1--B11, B1-A11, K1--K11, K2-K23 and exhaust passage 01-011, in main valve body 28 internal chamber, be provided with the tooth bar frame 32 with tooth bar 31, the main body of tooth bar frame 32 is frame-like, on one longitudinal inside casing face, be provided with the tooth bar 31 that work modulus and working gear 27 match, another longitudinal edge plays reinforced rib effect, at the two ends of tooth bar 31, be equipped with wear-resistant guiding cover 33, and by guider screw 34, wear-resistant guiding is overlapped to 33 spacing piston 29 left sides that are arranged on, right both sides, working gear 27 in work rotating shaft 19 is placed in tooth bar frame 32, and the transmission that is meshed with tooth bar 31, end cap 30 is assemblied in the both sides of main valve body 28, at fit engagement place, be provided with O-ring seals 35, medial surface is provided with cushion rubber 36, y RunddichtringO 37 by wear-resisting rubber-plastics material system is set in the groove of piston 29, in addition, the two ends up and down of working gear 27 in work rotating shaft 19 are provided with spacer ring 38 and antifriction-bearing box 39, to place restrictions on work rotating shaft 19 shouldered shafts, overlap 21 interior upper and lower vibrations, and by mounting screw 40, shouldered shaft cover 21 is fixedly installed on the outside face of main valve 28, working gear 27 in work rotating shaft 19 is assemblied in the tooth bar frame 32 in main valve body 28 chambeies.

In Fig. 4, makeshift valve 14 is mainly divided part 47, slide block 48, air cavity C1, D1 and is consisted of with source of the gas chamber P1, P2 that work source of the gas 18 is connected gas source switch 17 by control valve body 43, control lid 44-1, remote control cover plate 44-2, source of the gas cover plate 45, control plunger 46, pottery, the centre of control plunger 46 is provided with annulate shaft 49, two ends are provided with cushion blocking 50, y shape seal ring 51, setting-in slide block 48 on middle annulate shaft 49; Slide block 48 is made by high strength lubricant, top is provided with spill chamber 52, underpunch is built-in with support spring 53, the tight moving contact in bottom surface of the outer face of upper female chamber 52 and pottery point part 47, forms and has that mill resistance is little, good airproof performance, can have at many dust the ceramic sliding formula hermetically-sealed construction of reliable operation in the harsh environment of greasy dirt; A pottery point part 47 is arranged in control valve body 43 upper bottom surfaces, is provided with the kidney-shaped pore A11,01 and B11 of seal ring 54 above, and the joint of its underpart and control valve body 43 is provided with O-ring seals 55; At pottery, divide between part 47, control plunger 46 and slide block 48 and have chamber P2; Controlling cover plate 44-1 or remote control cover plate 44-2 and source of the gas cover plate 45 is assemblied on control valve body 43 by fix screw 56, on source of the gas cover plate 45, be provided with the source of the gas chamber P1 being connected with gas source switch 17, by the free air diffuser 58 that is arranged on the free air diffuser 57 on source of the gas cover plate 45 and be arranged on control valve body 43, be connected with P2 chamber, make P1, P2 chamber be filled with the body of calming the anger simultaneously; The effect of the upper female chamber 52 of slide block 48 is to guarantee three kidney-shaped pore A11 on pottery point part 47,01 and B11, in two side pores, there is all the time a pore and 01 to keep gas circuit to communicate, in exhaust work state, another pore not communicating with 01 gas circuit is carried out air inlet task; The joint of the free air diffuser 58 on free air diffuser 57 and control valve body 43 on source of the gas cover plate 45 is provided with O-ring seals 59, at source of the gas source cover plate 45, be respectively arranged with O-ring seals 60 with the fit engagement place of control cock 43 and the fit engagement place of control cover plate 44-1 or remote control cover plate 44-2 and control valve body 43, for straight manipulation Windshield Wiper processed, on control cover plate 44-1, arrange for the off-position valve opening 61 that off-position control cock 15 is installed.

Fig. 5 is the appearance fitting surface schematic diagram of makeshift valve 14, setting on it becomes corresponding relation with the appearance fitting surface of the swing reservoir 13 shown in Fig. 3, be provided with pore A11,01, the B11 of seal ring 54 above, two K23 with O-ring seals 62, K11 and mounting holes 63 and 64 respectively, above-described these two appearance fitting surfaces by mounting screw pass mounting hole 63 and 64 and tapped bore 41 and 42 be close to mutually assembling and be one, under confined state, pore A11,01, B11, K23, K11 set above them are all corresponding one by one mutually, and gas circuit connects.

Fig. 6, for the off-position control cock 15 of straight manipulation system, be arranged in the off-position valve opening 61 of controlling on cover plate 44-1, off-position control cock 15 is mainly by controlling cover plate 44-1, off-position valve rod 65 and off-position handle 67 compositions, off-position valve rod 65 is arranged in valve opening 61 by the spacing assembling of fastening assembly 71, be provided with spacing ring 66 above, the groove 68 of two road y shape seal rings 70, inflation annulate shaft 69, on 44-1, be also fixedly installed pore K21 and K22 controlling to cover, when off-position valve rod 65 is positioned at Fig. 6 position, be that off-position handle 67 is when drawing position outward, K21 and K22 are conducting state, and enter end position when off-position valve rod 65 pushes inward, while being hampered by spacing ring 66, K21 and K22 are off condition, because K21 and K22 gas channels are stopped by y shape seal ring 70, stop the air feed to K23, control plunger 46 rests against the left side, make makeshift valve 14 stop commutation, rain brush 1 rests in the one side presetting, the exhaust governor valve 16 of eliminating the noise for the band of straight manipulation system is arranged on by the screw thread 72 on it in screw 011 that swings reservoir 13, the exhaust governor valve 16 that band is eliminated the noise is mainly by screw thread 72, governor valve body 73, noise silencer 74, pore 75, the compositions such as hand wheel type metering needle 76 and locking spring 77, handwheel while using as shown in Figure 7 in trace rotation hand wheel formula metering needle 76, can reach and regulate the Slew Rate of rain brush 1 and the object of slew rate.

For Long-distance Control Windshield Wiper, will adopt off-position speed-regulation united valve 113, change remote control cover plate 44-2 into by controlling cover plate 44-1, implement off-position control and adopt structure as shown in Figure 9, off-position control system is by off-position handle 91, O-ring seals 100, combinaing valve body 101, off-position admission port 95, off-position free air diffuser 94, off-position outlet passageway 98, off-position valve pocket 99, plug screw 103, drain hole 97, the compositions such as off-position air extractor duct 96 and remote control cover plate 44-2, off-position position shown in Fig. 9 is that Long-distance Control Windshield Wiper is in stopping the control position of pendulum brush, because off-position handle 91 is in lower position, the air pressure of coming in from off-position admission port 95 (being P2) is through off-position free air diffuser 94, air inlet chamber 93, after off-position outlet passageway 98, by off-position air extractor duct 96 (being P3), outputed to the joint air flue 87 (being P4) in the remote-type coupling 84 of remote control cover plate 44-2, under gas pressure, remote control piston 79 in remote control lid 44-2 moves to left, and makes K23 and K24 obstructed, and air pressure can not enter the air chamber C1 of control plunger 46, makeshift valve 14 cannot normal commutation, thereby rain brush 1 stops swinging, if off-position hand 91 is upwards drawn out to plug screw 103 upper limit positions, the now air chamber 88 outside remote control piston 79, joint passage 87, PU pipe 86, air pressure in off-position air extractor duct 96 and off-position outlet passageway 98 is discharged from deflation hole 97, remote control piston 79 is subject to the gas pressure coming from K23 and moves to right-hand member, thereby connect K23 and K24 path, K24 in makeshift valve 14 has had air pressure signal and in normal commutation, piston 29 in corresponding swing reservoir 13 is motion thereupon also, and result rain brush 1 is in normal working, and remote control cover plate 44-2 is by remote control cover plate valve body 78, remote control piston 79, little flat seal ring 80, steel ball 81, large flat sealing shape 82, O-ring seals 83, remote-type coupling 84, nut 85, PU pipe 86, joint air flue 87, outer air chamber 88, air inlet chamber 89, the composition such as overflow weir 90 and retainer spring 116.

Frequency-adjustable speed-adjustable for Long-distance Control will adopt off-position speed-regulation united valve 113, structure as shown in figure 10, frequency-adjustable speed-adjustable control system is by speed handwheel 102, timing throttle pin 112, combinaing valve body 101, stop loose spring 104, O shape circle 105, plug screw 103, speed governing admission port 110, speed governing free air diffuser 109, speed governing air inlet chamber 111, speed governing outlet passageway 106, the compositions such as speed governing air extractor duct 107 and steel ball 108, on the swing exhausr port 011 of reservoir 13 and the speed governing admission port 110 of off-position speed-regulation united valve 113, connect gas-tpe fitting, with PU, managing 86 connects, the gas of coming in from exhausr port 011 enters speed governing admission port 110, through speed governing free air diffuser 109, enter timing throttle pin 112, after throttling again through speed governing outlet passageway 106, finally emptying from speed governing air extractor duct 107, as changed rain brush 1 hunting frequency, swing speed, can trace rotate speed handwheel 102 and change the throttle opening of timing throttle pin 112, in order to alleviate exhaust roar, can on speed governing air extractor duct 107, connect the exhaust governor valve that band is eliminated the noise, but make sure to keep in mind: decontrol hand wheel type metering needle and make it aperture maximum, Figure 12 is shown in gas circuit trend and the tracheae wiring of Long-distance Control Windshield Wiper, in addition, the off-position of Long-distance Control Windshield Wiper, the control of frequency-adjustable speed-adjustable can replace off-position speed-regulation united valve 113 with the remote control equipment (RCE) 115 that is arranged on the band spray on remote manipulation panel, spray structure can be electric structure or pneumatic structure, in oil field, the inflammable and explosive place such as colliery, adopt pneumatic spray safety and reliability.

Principle of work

During work, first open the gas source switch 17 being connected with high-pressure work source of the gas 18, high pressure draft enters the P1 chamber of control cock 14, and through free air diffuser 57, 58 enter P2 chamber, when slide block 48 places are as shown in Figure 4 during position, air pressure in P2 chamber is exported by pore B11, AA chamber air feed through from the B11--A1 gas circuit shown in Fig. 3 to the main valve body 28 of swing reservoir, order about piston 29 and tooth bar 31 moves right, the working gear 27 that is engaged in tooth bar 31 clockwise rotates thereupon, air pressure in BB chamber is in pressure release state simultaneously, due to the pore A11 swinging on reservoir 13, 01, A11 on B11 and makeshift valve 14, 01, B11 becomes one-to-one relationship, air pressure in BB chamber enters the slide block 48 top cavitys 52 of makeshift valve 14 by B1-A11, proceed to again 01 hole that swings reservoir main valve body 28, pass through again 01--011 path from 011 discharge, when working gear 27 forwards 90 ° of setting to, be that reservoir main valve body 28 right-hand member pistons 29 have arrived low order end, telltale hole K2 in AA air cavity is opened, air pressure flows into K23 from K2, when Windshield Wiper is directly to manipulate standard, air pressure in K23 just flows into off-position control cock 15, K21 pore as shown in Figure 6, through off-position valve opening 61, enter K22, the C1 air chamber of K24 and control plunger 46, under gas pressure, control plunger 46 is with movable slider 48 to move to right together, B11 pore enters in the cavity 52 on slide block 48 subsequently, then enter 01 hole that swings reservoir 13, the exhaust governor valve 16 that finally enters the band noise elimination being contained on 011 through 01-011 gas control is emptying, after slide block 48 moves to right, work source of the gas 18 enters A11 simultaneously, through A11-B1, enter the BB air chamber swinging in reservoir, under gas pressure, piston 29 moves to left together with tooth bar 31, work rotating shaft 19 rotates counterclockwise, when going back to 90 °, telltale hole K1 in BB air cavity is opened, simultaneously the air pressure in K2 path from swing reservoir 011 emptying, air pressure in K1 flows to K11, proceed to again the K12 in makeshift valve 14, under gas pressure, control plunger 46 moves to left together with slide block 48, linked up again A11, 01 gas circuit, B11 transfers air inlet again to, along with A11, B11 replaces air inlet, K1, K2 signal alternately occurs, control plunger 46 in makeshift valve 14 and the piston 29 swinging in reservoir 13 alternately commutate mobile, having driven work rotating shaft 19 to come and go rotates, thereby drive rain brush 1 to put again and again rain (snow) water on brush windshield, make driver's sight line transparent, in the time will stopping Windshield Wiper work, can push the off-position handle 67 in off-position control cock 15, make off-position valve rod 65 move to inwards spacing ring 66, K21 and K22 are in phase vent passage not, makeshift valve 14 is because commutating without control signal, swing reservoir 13 also because stopping without commutation air pressure, result rain brush 1 is just parked on former predetermined position, left or right limit automatically, when Windshield Wiper is remote control type, the off-position of Windshield Wiper and speed governing will adopt off-position speed-regulation united valve 113, and to change the control cover plate 44-1 on makeshift valve 14 into remote control cover plate 44-2, on reservoir 13 011 will swung simultaneously, off-position admission port 95 on off-position speed-regulation united valve, off-position air extractor duct 96, speed governing air extractor duct 107, P1 hole on speed governing admission port 110 and source of the gas cover plate 45, work source of the gas 18 all connects gas-tpe fitting, between work source of the gas 18 and the P1 hole of source of the gas cover plate 45, with PU pipe, access T-pipe joint 114, finally with PU pipe, connect 114 and 95, 96 and P4, 011 and 110 tracheae path, pipeline connection line is shown in the 12-3 in Figure 12, 12-4, off-position speed-regulation united valve 113 is arranged on remote manipulation panel, remote control distance can be within 50 meters, can be with the speed handwheel 102 of Figure 10 as will be carried out frequency-adjustable speed-adjustable to rain brush 1 time, to exporting by the road from swinging reservoir 13, speed governing admission port 110, the air pressure that speed governing free air diffuser 109 enters speed governing air inlet chamber 111 carries out throttling by timing throttle pin 112, throttle opening is less, rain brush 1 wobble frequency slew rate is less, throttle opening is larger, wobble frequency slew rate is just larger, driver can carry out step-less adjustment according to the rain on windshield (snow) water yield, in addition, in order to reduce exhaust roar, can connect the exhaust governor valve 16 that band is eliminated the noise at speed governing air extractor duct 107 screws, but make sure to keep in mind: standard-sized sheet hand wheel type is adjusted pin 76, if stop Long-distance Control Windshield Wiper, make rain brush 1 self-return, can advance off-position handle 91, connect the path of off-position admission port 95 and off-position air extractor duct 96, air pressure in off-position air extractor duct 96 paths, by PU manage 86 and joint air flue 87 enter the outer air chamber 88 of remote control cover plate 44-2, remote control piston 79 moves to right, this is because two pistons of remote control piston 79 are right large left little, under gas pressure in K23, control plunger 79 after moving to right cuts off K23 and K24 path, in C1 chamber in makeshift valve 14, the overflow weir 90 of air pressure from remote control cover plate 44-2 discharged, control plunger 46 in makeshift valve 14 is because commutating without control signal, corresponding swing reservoir 13 quits work, just self-return of rain brush 1, stop on predefined position, if reopening Windshield Wiper, off-position can be shaken hands 91 upwards to move at the end, connect K23 and K24 path, rain brush 1 will be returned normal working.

Claims (7)

1. a Multi-purpose ceramic-sealed pneumatic windscreen wiper (hereinafter to be referred as Windshield Wiper), by Wiper system and pneumatic control system, formed, Wiper system comprises rain brush (1), support (2), brush holder support (3) and brush arm (4), pneumatic control system comprises swing reservoir (13), makeshift valve (14), off-position control cock (15), the exhaust governor valve (16) that band is eliminated the noise, gas source switch (17), work source of the gas (18), control cover plate (44-1), remote control cover plate (44-2), off-position position speed-regulation united valve (113), Windshield Wiper operating mode has two kinds of straight manipulation standard and remote control types, the former claims Z-type, directly be contained on Windshield Wiper body, the latter claims y type, be contained on remote manipulation panel, this Windshield Wiper is characterised in that:

A, described swing reservoir (13) is mainly provided with main valve body (28), piston (29), end cap (30), flashing board (22) and air cavity AA and BB, signal pore K1 and K2, on appearance fitting surface, there is pore A11, 01, B11, 011 and inner air path passage A1-B11, K1-K11, K2-K23 and exhaust passage 01-011, in inside, be provided with the shouldered shaft cover (21) of work rotating shaft (19), flashing board (22) is housed outward, also be provided with on the outer surface tapped bore (41) and (42) and exhaust tapped bore 011, on the medial surface of end cap (30), be provided with cushion rubber (36), in chamber, be provided with tooth bar (31), wear-resistant guiding cover (33), and by guider screw (34), it is spacing on a left side, tooth bar frame (32) on right piston (29), the working gear (27) that has work modulus to conform to tooth bar (31) in tooth bar frame (32), work rotating shaft (19) and working gear (27) are on same axis, rainproof cover (24) and back-up block (9) are housed on one end of shouldered shaft cover (21), and back-up block (9) is fixed in work rotating shaft (19) with nut (25-1), brush arm (4) fits together by rotating shaft (8) and back-up block (9), brush arm (4) rotates in back-up block (9), the other end that stretches out in main valve body (28) is provided with hand behaviour's handle (26), in the groove of piston (29), be provided with y shape seal ring (37),

B, described makeshift valve (14) is mainly by control valve body (43), control cover plate (44-1) or remote control cover plate (44-2), source of the gas cover plate (45), control plunger (46), pottery point part (47), slide block (48), air cavity C1, D1 and the chamber P1 being connected with work source of the gas (18) by gas source switch (17), P2 composition, in the centre of described control plunger (46), be provided with annulate shaft (49), both ends of the surface are provided with cushion blocking (50), on control plunger (46), be provided with the y shape seal ring (51) with sealing compensation function, at the upper setting-in of described middle annulate shaft (49), there is the slide block (48) of wear-resisting lubricating function, on the top of slide block (48), be provided with spill chamber (52), support spring (53) is placed in bottom, the outer face of described slide block (48) upper female chamber (52) and the closely moving contact mutually of pottery point part (47), at pottery, divide part (47), between control plunger (46) and slide block (48), form chamber P2, on source of the gas cover plate (45), there are free air diffuser (57) and chamber P1, on control valve body (43), there is free air diffuser (58), it and P1 chamber, the gas circuit of free air diffuser (57) and chamber P2 communicates, pottery point part (47) is arranged on the upper surface of control valve body (43), be provided with the kidney-shaped pore A11 of seal ring (54) above, 01 and B11, the joint of its underpart and control valve body (43) is provided with O-ring seals (55), at source of the gas cover plate (45), be respectively arranged with O-ring seals (60) with the fit engagement place of control valve body (43) and the fit engagement place of control cover plate (44-1) or remote control cover plate (44-2) and control valve body (43), on control cover plate (44-1), be provided with for the off-position valve opening (61) that off-position control cock (15) is installed, two ends at control plunger (46) are also arranged with air chamber C1 and D1,

C, the exhaust governor valve (16) that off-position control cock (15) on described straight behaviour's controllable type Windshield Wiper and band are eliminated the noise is arranged on respectively to be controlled the off-position valve opening (61) of cover plate (44-1) and swings in 011 screw of the main valve body (28) in reservoir (13), off-position control cock (15) is by controlling cover plate (44-1), off-position valve rod (65) and off-position handle (67) composition, off-position valve rod (65) is assemblied in off-position valve opening (61) by fastening assembly (71) is spacing, be provided with spacing ring (66) above, the groove (68) of two road y shape seal rings (70), inflation annulate shaft (69), on control cover plate (44-1), be also provided with pore K21 and K22, the exhaust governor valve (16) that band is eliminated the noise is by screw thread (72), governor valve body (73), noise silencer (74), pore (75), hand wheel type metering needle (76) and locking spring (77) composition,

D, off-position speed-regulation united valve (113) on described remote control type Windshield Wiper, contain off-position function and frequency-adjustable speed-adjustable function, it is installed on remote manipulation panel, wherein off-position structure is by off-position handle (91), O-ring seals (100), combinaing valve body (101), off-position admission port (95), off-position outlet passageway (98), deflation hole (97), off-position valve pocket (99), off-position air extractor duct (96) and plug screw (103) composition, off-position handle (91) is confined to move between plug screw (103) and off-position valve pocket (99), when being pressed to off-position valve pocket (99) downwards, Windshield Wiper quits work, rain brush self-return, when upwards moving plug screw (103) to, Windshield Wiper is started working, speed regulating structure in remote control type off-position speed-regulation united valve (113) is by speed handwheel (102), timing throttle pin (112), combinaing valve body (101), stop loose spring (104), O-ring seals (105), plug screw (103), speed governing admission port (110), speed governing free air diffuser (109), speed governing air inlet chamber (111), speed governing outlet passageway (106), speed governing air extractor duct (107) and steel ball (108) composition, in order to reduce exhaust roar, can be in speed governing air extractor duct (107) screw of off-position speed-regulation united valve (113) the mounting strap exhaust governor valve (16) of eliminating the noise, but notice that the handwheel on hand wheel type metering needle (76) must be threaded to maximum opening,

E, described remote control type Windshield Wiper should change remote control cover plate (44-2) into by controlling cover plate (44-1), remote control cover plate (44-2) is by remote control cover plate valve body (78), remote control piston (79), little flat seal ring (80), steel ball (81), large flat seal ring (82), O-ring seals (83), remote-type coupling (84), nut (85), PU manages (86), joint air flue (87), outer air chamber (88), air inlet chamber (89), overflow weir (90), retainer spring (116) composition.

2. Windshield Wiper according to claim 1, it is characterized in that described swing reservoir (13) is provided with an appearance fitting surface, face is provided with tapped bore (41) and (42) that makeshift valve (14) is installed, work pore A11, 01, B11, K11, K23, in its side, be provided with exhaust tapped bore 011 and gas channels: A1-B1, B1-A11, K1-K11, K2-K23 and 01-011, adopt mounting screw (40) by mounting hole (63) and (64), makeshift valve (14) to be fixed in the tapped bore (41) and (42) in main valve body (28), composition one mutually, pore A11 on makeshift valve (14), 01, B11, K11, K23 and the A11 swinging in reservoir (13), 01, B11, K11, K23 is mutually corresponding one by one, gas circuit connects, between binding face gas circuit, with seal ring (54) and O-ring seals (62), seal.

3. Windshield Wiper according to claim 1, is characterized in that brushing piece (6) in described rain brush (1) made by wear-resistant, high temperature resistant poor, aging-resistant rubber-plastics material.

4. Windshield Wiper according to claim 1, it is characterized in that described rain brush (1) frequency-adjustable speed-adjustable control: the exhaust governor valve (16) that Z-type adopts the band in 011 tapped bore that is arranged on main valve body (28) to eliminate the noise, handwheel during use on trace rotation hand wheel formula metering needle (76), regulate free air capacity, y type adopts the off-position speed-regulation united valve (113) being arranged on remote manipulation panel, trace rotates speed handwheel (102), regulates free air capacity.

5. Windshield Wiper according to claim 1, it is characterized in that the off-position control of described rain brush (1): the employing of Z-type is arranged on the off-position control cock (15) of controlling on cover plate (44-1), push or pull off-position handle (67) to realize, the employing of y type is arranged on the off-position speed-regulation united valve (113) on remote manipulation panel, pushes or pull off-position handle (91) to realize.

6. Windshield Wiper according to claim 1, it is characterized in that described control cover plate (44-1) or remote control cover plate (44-2) are connected on control valve body (43) above with fix screw (56), carry out pressurized seal by O-ring seals (59) or (60).

7. Windshield Wiper according to claim 1, off-position, speed governing to y type Long-distance Control Windshield Wiper also can substitute off-position speed-regulation united valve (113) with the remote control equipment (RCE) (115) that is arranged on the band spray on remote manipulation panel, spray structure can be electric structure or pneumatic structure, adopts the new type pneumatic wiper safety and reliability of pneumatic spray in inflammable and explosive places such as oil field, collieries.

Images