CN2214234Y - Direct pressure back-loading anti-leakage sprayer - Google Patents

Abstract

The utility model relates to a direct pressure back-loading anti-leakage sprayer, particularly an agricultural sprayer. The upper part of a pump body is connected with an anti-leakage connecting jacket tube, and the lower part of the pump is connected with a filtering connecting jacket tube whose tube wall is provided with holes and outer side is sheathed with a sieve cloth. The upper side of a sieve ring is sheathed with a filtering cloth bag. The upper end of a piston tube which is arranged in the pump is connected with a liquid conveying tube directly. When a pressure lever is swung, the physic liquor is sprayed out from a spray head continually under the action of an upper and a lower valves. The physic liquor leaked by the wear of a soft plastic bowl flows into a physic liquor tank through the water return hole of the anti-leakage jacket tube, and the outer side of the physic liquor tank is provided with a sponge cushion. The utility model solves the problems of anti-leakage and anti-blockage. The utility model has the advantages of simple structure, convenient assembly and disassembly, and portable use.

Description

Direct pressure back-loading anti-leakage sprayer

The utility model relates to a kind of agricultural atomizer.

In the workers and peasants' one 16 type knapsack sprayers that generally use, exist easy corrosion-deformation and leak and complex structure at present, part is many, not the problem of easy-maintaining.

The purpose of this utility model provides and anti-leaks, anti-clogging, and is simple in structure, the novel vertical compression knapsack sprayer of maintenance easy to assemble.

The utility model comprises soup staving 2, wire screen filtering mesh bag 4, transfusion soft plastic pipe 1, leakproof splice sleeve 7, pump body 12, piston tube 13, goes up water polo valve 16, water intake ball valve 19, filtration splice sleeve 18, swing depression bar 24, swings up and down connecting rod 6, hard plastic tube spray boom 27, shower nozzle 34, assembling port lid 8.The upper end of pump body 12 connects with the screw of leakproof adapter sleeve 7 lower ends with screw thread, the lower end connects with screw thread and the endoporus that filters splice sleeve 18 upper ends, water intaking valve 19 is housed in the bottom centre hole, the afterbody of water intaking valve is equipped with into water soft plastic pipe 20 and places and filter in the splice sleeve, is stamped the soft bowl 11 of moulding of sealing on the pump body mouth; On the tube wall of filtration splice sleeve 18 the into hole of soup is arranged, jacket exterior is with wire screen filtering screen 21, vertical compression piston tube 13 places the endoporus of pump body 12, medicinal liquor barrel 2 outer and transfusion soft plastic pipe 1 connections are stretched out in its upper end, piston head body 14 is equipped with screw thread in the lower end, in the bellmouth orifice of piston head body ball is housed, and staggered piston head backwater hole 15 is arranged on the wall of middle part, piston packing 17 is equipped with in the bottom, forms check valve.The heelpiece 23 usefulness screws 22 that the pump body filters splice sleeve 18 by its underpart are installed in the medial surface of medicinal liquor barrel 2, and its top is installed in the lid 8 of top pilot hole 9 by leakproof splice sleeve 7.Swing up and down connecting rod 6 and be connected with the connecting rod coupling head 5 on top, an end of hard plastic tube spray boom 27 connects with infusion tube 1, and the other end fuses by splice sleeve 28 and hard plastic tube spreading spray boom 29.

Excellent beneficial effect of the present utility model is (1) owing to adopted the leakproof sleeve pipe, has solved the leakproof problem.(2) owing to saved compression bottle and switch and handle type filter screen set, simplify the structure, reduced pressure soup conveying process, thereby the chance that has promptly reduced leakage has been saved material again.(3) to change original filter disc be the filter cloth bag and filter adapter sleeve and be provided with the wire screen filtering screen outward, filters through twice filter cloth to prevent that foreign matter from entering in the pump piston chamber and produce clogging.(4) set up the sponge back pad, wide soft braces has improved operator's working condition.(5) owing to set up the fixing base of using of assembling port lid and pump body bottom, easy for assembly, disassembly and maintenance, it is firm to use.(6) spray owing to adopting directly to press,, make the operator feel to save labour light so its resistance reduces.(7) piston tube, parts such as pump, spray boom, joint, shower nozzle are manufactured with plastics, and are therefore antiseptic and rustproof, durable in use.(8) adopt two-section to install long spray boom, realized packaged convenience, also be furnished with curved shower nozzle and straight shower nozzle, the shower nozzle that the user can select for use plane crops and high-altitude spraying operation to need.

The drawing explanation: Fig. 1 is the appearance and the organigram of vertical compression backpack leakproof sprayer.

Fig. 2 is the assembling schematic diagram of each parts of pump body.

According to Fig. 1 and Fig. 2 in detail implementation detail of the present utility model is described in detail below.

Vertical compression backpack leakproof sprayer comprises soup staving 2, wire screen filtering mesh bag 4, transfusion soft plastic pipe 1, leakproof adapter sleeve 7, pump body 12, piston tube 13, goes up water polo valve 16, water intake ball valve 19, filtration splice sleeve 18, swing depression bar 24, swings up and down connecting rod 6, hard plastic tube spray boom 27, shower nozzle 34, assembling port lid 8.Pump body upper end has the lower end snail pit of external screw thread and leakproof adapter sleeve 7 to connect, pump mouth sealing ring 11 is housed in its upper end hole, soup in the pump is sealed in wherein, have under the situation of wearing and tearing at sealing ring (bowl), when leakage occurring, the surplus liquid that pours in its upper end can be flowed back in the medicinal liquor barrel by the leakproof backwater hole, prevented leakage, lower end endoporus and Wai Yuan have screw thread, outer garden connects with the endoporus that filters adapter sleeve 18 upper ends, in its lower end centre bore water intaking valve 19 is housed, the afterbody of water intaking valve is equipped with into water soft plastic pipe 20 and places and filter in the adapter sleeve.The upper end endoporus that filters splice sleeve 18 has screw thread, and the into hole of soup is arranged on the tube wall, the outer suit of pipe wire screen filtering screen 21, the bottom has a side to have the heelpiece 23 of screw.There is external screw thread the upper end of leakproof splice sleeve 7, and back-up ring is arranged at the screw thread bottom, and there is internal thread the lower end, and leakproof backwater hole 10 is arranged on the tube wall.Vertical compression piston tube 13 is installed in the endoporus of pump body 12, its upper end extends to outside the medicinal liquor barrel 2 and directly connects with transfusion soft plastic pipe 1, the lower end connects by screw thread and piston head body 14, in the hole of piston head body ball is housed, 4 staggered piston head backwater holes 15 are arranged on the wall of position, intermediate portion, piston packing 17 is housed in the following end slot forms check valve; Space between pump and the piston tube is interim fluid reservoir; The base 23 usefulness screws 22 that the pump body filters adapter sleeve 18 by its underpart are installed in the medial surface of medicinal liquor barrel 2, and its top is installed in the lid 8 of top pilot hole 9 by the screw thread of leakproof splice sleeve 7 upper ends; Connecting rod coupling head 5 usefulness iron sheet foldings become two dop, on it in hole of two suit swing up and down the upper end of connecting rod 6, the lower end is stuck in the junction of piston tube and infusion tube with screw, and piston tube can be pumped under the drive of connecting rod; For packaged convenience spray boom is made hard plastic tube spray boom 27 and 29 liang of joints of hard plastic tube spreading spray boom, fuse with spray boom connecting tube 28; The end of transfusion soft plastic pipe 1 and the hollow soft handle 26 of moulding connect, the soft other end and the hard plastic tube spray boom 27 of moulding handle 26 connects, the end of hard plastic tube spreading spray boom 29 has assembled shower nozzle 34 by connector 33, shower nozzle has curved shower nozzle and directly sprays first two, can select for use according to the needs of plane crops operation and the spraying operation of fruit tree high-altitude.The upper and lower hoop of medicinal liquor barrel has fixedly sheet iron strip 32, and there is the sponge back pad at the rear that wide soft braces 32 braces are housed on it, and lower limb presses solidly under sheet iron strip on it; For improving filter effect and prevented to be blocked on the filtration ring net at perfusion liquid mouth place suit the filter cloth bag.

When piston tube under connecting rod drives, when moving upward down, in the piston head on the water polo valve close, pump bottom ball valve is left by suction, the bucket herb liquid enters pump by water supply hose through the ball valve place, has been filled water when transporting to the top in the pump, and pump bottom ball valve is closed, big medicine amount liquid when piston tube moves downward in the pump is compressed into piston tube by piston ring, part soup enters interim fluid reservoir through the piston head backwater hole, and a part of soup is by the piston upper hose, through infusion tube, spray boom, the shower nozzle ejection; When piston tube moves upward again, the soup of interim fluid reservoir is extruded, enter in the piston tube again through the piston head backwater hole, the interior ball valve of piston head this moment is in closes shape, soup only moves upward, through woven hose, and spray boom, shower nozzle sprays again, has realized continuously swinging the vertical compression spray operation like this.

The utility model also can not established the assembling port lid 8 and the bottom on top and filter splice sleeve base 23 and screw 22, the lower end that to filter coupling sleeve 18 when the pump body is installed is contained on the firm banking of medicinal liquor barrel 2 inner bottom parts, the back-up ring on leakproof splice sleeve 7 tops is placed the bottom of pilot hole 9, and screwing blind nut at its section of stretching out medicinal liquor barrel 2 outsides can fix.

Claims (3)

1, vertical compression backpack leakproof sprayer, comprise soup staving (2), wire screen filtering mesh bag (4), transfusion soft plastic pipe (1), leakproof adapter sleeve (7), pump body (12), piston tube (13), last water polo valve (16), water intake ball valve (19), filter adapter sleeve (18), swing depression bar (24), swing up and down connecting rod (6), hard plastic tube spray boom (27), shower nozzle (34), assembling port lid (8), it is characterized in that of the screw connection of the upper end of pump body (12) with screw thread and leakproof splice sleeve (7) lower end, the lower end connects with the endoporus that filters splice sleeve (18) upper end with screw thread, water intaking valve (19) is housed in the bottom centre hole, the afterbody of water intaking valve is equipped with into, and water soft plastic pipe (20) places in the filtration splice sleeve (18), vertical compression is lived in trembling with fear and is managed the endoporus that (13) place pump body (12), stretch out outside the medicinal liquor barrel (2) its upper end, connect with transfusion soft plastic pipe (1), the cold body (14) of living is equipped with screw thread in the lower end, in the bellmouth orifice of a cold body alive ball is housed, 4 staggered work backwater hole (15) of trembling with fear is arranged on the wall of middle part, the cold sealing ring (17) of living is equipped with in the lower end, the base (23) that the pump body filters splice sleeve (18) by its underpart is installed in the medial surface of medicinal liquor barrel (2) with screw (22), its top is installed in the lid (8) of top pilot hole (9) by leakproof splice sleeve (7), one end of hard plastic tube spray boom (27) connects with the transfusion soft plastic pipe, the other end joins together by splice sleeve (28) and hard plastic tube spreading spray boom (29), has gone up suit wire screen filtering mesh bag (4) at screen cloth circle (3).

2, vertical compression backpack leakproof sprayer according to claim 1 is characterized in that there is external screw thread the upper end of leakproof splice sleeve (7), and back-up ring is arranged at the screw thread bottom, and tube wall has leakproof backwater hole (10), and the lower end endoporus has internal thread.

3, vertical compression backpack leakproof sprayer according to claim 1, it is characterized in that there is internal thread the upper end of filtering adapter sleeve (18), tube wall has the inlet opening, has managed outer suit wire screen filtering screen (21), and the lower end is that the side has the base of installing with screw (23).

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