CN212830207U

CN212830207U - Plastic pistol pump

Info

Publication number: CN212830207U
Application number: CN202021946955.3U
Authority: CN
Inventors: 梁配辉; 朱茂勇; 张永雷; 李军
Original assignee: Zhongshan Majesty Packaging Systems Co Ltd
Current assignee: Guangdong Meijieshi Holdings Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-03-30
Anticipated expiration: 2030-09-08

Abstract

The utility model discloses a plastic pistol pump, which comprises a pump body, the pump body sub-unit connection has a locking closure, the pump body is equipped with a liquid spraying channel, the outlet of the liquid spraying channel is equipped with a nozzle, the pump body is equipped with a liquid outlet channel and a liquid inlet channel which are separated from each other from top to bottom, wherein the liquid outlet channel is communicated with the liquid spraying channel, the side of the liquid outlet channel and the liquid inlet channel is equipped with a liquid leading cavity, the upper part of the liquid leading cavity is communicated with the liquid outlet channel through a normal opening all the time, a suction plug is arranged in the liquid leading cavity, the pump body is articulated with a trigger which can drive the suction plug to do left and right piston motion in the liquid leading cavity, the trigger is equipped with an elastic arm which can be pressed on the pump body and drive the trigger to drive the suction plug to reset, a lateral one-way valve which can open the liquid leading cavity and the liquid inlet, the liquid inlet pump has the characteristics of simple structure, high liquid inlet efficiency and capability of fully utilizing the solution pumped into the liquid inlet cavity.

Description

Plastic pistol pump

[ technical field ] A method for producing a semiconductor device

The utility model relates to a plastic pistol pump.

[ background of the invention ]

The existing pistol spray pump is generally provided with a one-way valve in a liquid inlet channel, when liquid is fed, a suction plug is outwards opened to enlarge a liquid guide cavity to generate negative pressure, then the liquid inlet channel generates negative pressure through a communication port between the liquid guide cavity and the liquid inlet channel, and then the one-way valve is opened to enable liquid to enter the liquid inlet channel and then enter the liquid guide cavity through the communication port, and due to the negative pressure generated by the liquid guide cavity, the liquid inlet channel generates negative pressure through the communication port, the one-way valve is opened, and the liquid enters through the pressure difference between the liquid inlet channel and a suction pipe, so that the liquid inlet efficiency is influenced; and when pulling the trigger off, solution just can close the check valve when liquid inlet channel intermediate pressure reaches a definite value from drawing the liquid chamber through the intercommunication mouth outflow to liquid inlet channel, before closing, has partial solution to flow back to in straw or the bottle, reduces the effective utilization ratio of the solution of pump suction in the liquid chamber.

The present invention is made based on such a situation.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art, providing a plastic pistol pump, having simple structure, high liquid inlet efficiency and being capable of fully utilizing the characteristics of pumping the solution in the liquid-leading cavity.

The utility model discloses a realize through following technical scheme:

the utility model provides a plastic pistol pump, includes the pump body, pump body sub-unit connection has the locking closure, be equipped with hydrojet channel in the pump body, hydrojet channel's export is equipped with the nozzle, be equipped with liquid outlet channel and the inlet channel of upper and lower separation in the pump body, wherein liquid outlet channel is linked together with hydrojet channel liquid outlet channel and inlet channel's side is equipped with draws the liquid chamber, the upper portion that draws the liquid chamber is linked together through normal opening and liquid outlet channel all the time draw the liquid intracavity to be equipped with and inhale the stopper articulated on the pump body have can drive and inhale the trigger of doing piston motion about in drawing the liquid chamber, be equipped with on the trigger and can the roof pressure on the pump body and order to drive the trigger and drive the bullet arm that inhales the stopper and reset, it can open the side direction check valve that draws liquid chamber and inlet channel to be linked together to draw between liquid chamber and.

As above a plastic pistol pump, the side direction check valve includes the valve plug of T-shaped, the valve plug includes fixed axle and elasticity valve plate, be equipped with the bulge loop that is located fixed axle one side on the edge of valve plate, be equipped with the intercommunication on the pump body and draw liquid cavity and inlet channel's shaft hole and intercommunicating pore, shaft hole and intercommunicating pore are located the bulge loop inboard, the fixed axle is fixed on the shaft hole, draw and be equipped with the flat relative with the bulge loop on the right side end in liquid cavity, the bulge loop pastes through the elastic action of valve plate and leans on the flat bottom and realize sealedly.

The all-plastic pistol pump is characterized in that the plurality of the communication holes are arranged around the outer side of the shaft hole, the communication holes and the shaft hole are communicated into a whole to form a quincuncial hole structure, the protruding strip protruding towards one side of the valve plate and supported on the right side of the valve plate is arranged between every two adjacent communication holes, and the flat bottom, the protruding ring, the valve plate and the protruding strip form a communication cavity which is always communicated with the communication holes.

As above a plastic pistol pump, inhale the stopper including the cock stem to and main one-way sealing ring and vice one-way sealing ring of setting on the cock stem outside, main one-way sealing ring sets up the right-hand member at the cock stem, vice one-way sealing ring sets up the left side at main one-way sealing ring, main one-way sealing ring and vice one-way sealing ring and draw about liquid intracavity wall forms dual seal structure, be equipped with the notch towards the right ring channel between main one-way sealing ring and the cock stem, it is protruding the holding ring in drawing the liquid chamber to be equipped with left on the right side end in drawing the liquid chamber, the holding ring encloses the valve plug in the inboard and with the ring channel left and right sides relatively, the holding ring is equipped with the breach corresponding with normally opening.

The all-plastic pistol pump is characterized in that the liquid spraying channel and the liquid outlet channel are arranged at a certain angle, an inlet of the liquid spraying channel is arranged in the middle of the liquid outlet channel, a longitudinal one-way valve only allowing liquid to flow from the liquid outlet channel to the liquid spraying channel is arranged between the liquid outlet channel and the liquid spraying channel, the longitudinal one-way valve comprises an elastic telescopic part positioned on the upper part of the liquid outlet channel, the elastic telescopic part is hollow, a blank holder is arranged on the upper end of the elastic telescopic part towards the outer side, a casing is connected to the pump body, a sleeve ring sleeved on the outer side of the liquid outlet channel from top to bottom is arranged on the casing, a press ring used for pressing the upper end of the longitudinal one-way valve to tightly press the blank holder on the edge of the upper end opening of the liquid outlet channel is arranged on the casing, the blank holder connects the press ring and the upper end opening of the liquid outlet channel in a, the lower extreme of movable part is equipped with the ring, it inserts the round hole that realizes sealing connection to lie in the open-ended top on the liquid outlet channel, the round hole bottom is equipped with the step that can block the ring from the below, the elastic expansion portion makes the ring insert in the round hole with the downward elasticity roof pressure of movable part, be equipped with the hole on the vertical check valve, be equipped with on the shell and insert downwards in the hole and can follow the locating lever that withstands the hole bottom and restrict the rise of movable part when the movable part upwards moves about.

According to the all-plastic pistol pump, the upper end of the movable part is provided with the one-way sealing ring positioned above the inlet of the liquid spraying channel, the one-way sealing ring is in sealing connection with the liquid outlet channel, and two or more gaps are arranged on the side surface of the elastic telescopic part in the circumferential direction.

In the all-plastic pistol pump, the elastic expansion part is of a bowl-shaped structure.

As above a plastic pistol pump, the exit of hydrojet passageway is equipped with circular joint, the nozzle box connects the outside and can rotate relatively to the joint, be equipped with bellied buckle on the lateral surface that connects, be equipped with in the nozzle and supply the buckle card to go into and prevent that the nozzle from deviating from the draw-in groove that connects, this draw-in groove is for the arc wall that the winding joint set up and supply the buckle at the certain angle of internal rotation, connect and be equipped with the liquid outlet with hydrojet passageway intercommunication, the nozzle be equipped with insert in the liquid outlet and with liquid outlet inner wall sealing connection's sealing connection go-between, be equipped with between nozzle and the liquid outlet and can block liquid spun and block the mechanism after the nozzle rotates certain angle.

The all-plastic pistol pump comprises a sleeve column and a central column, wherein the sleeve column is located on the inner side of the sealing connecting ring, the central column is arranged at the liquid outlet and extends into the sleeve column, a first groove communicated with the nozzle outlet is formed in the bottom of the inner side of the sleeve column, a second groove communicated with the liquid outlet is formed in the inner side wall of the sleeve column, a third groove capable of communicating the first groove and the second groove is formed in the central column, and the nozzle is rotated to enable the second groove to be staggered with the third groove so as to block the communication between the first groove and the second groove.

The all-plastic pistol pump is characterized in that the elastic arm and the trigger are integrally molded through injection, the two elastic arms are respectively positioned on the left side and the right side of the pump body, the elastic arms are of an upward convex bending structure, the rear ends of the elastic arms are provided with the hooks, and the rear portion of the pump body is provided with the hook grooves matched with the hooks.

Compared with the prior art, the utility model discloses there is following advantage:

1. the utility model discloses a pistol pump, its component parts all adopt plastics to make, and the corrosivity problem that metal component such as metal spring leads to is avoided adopting in environmental protection safety, can satisfy European Union's recovery standard better, improves resource reuse rate.

2. Set up the side direction check valve through drawing between liquid chamber and the inlet channel, then when inhaling the outside motion of stopper, draw the long-pending grow of liquid chamber, produce the negative pressure to direct action is on the side direction check valve, opens the side direction check valve, makes the liquid in the bottle get into through straw and inlet channel and draws the liquid intracavity, and the feed liquor is efficient. When the trigger is pulled, the solution in the liquid guide cavity can quickly push the lateral one-way valve to be closed, so that the liquid is prevented from flowing back into the bottle; and the liquid leading cavity and the liquid outlet channel are communicated with each other all the time by adopting the normal opening, so that the explosive force of the solution flowing out from the liquid leading cavity to the liquid outlet channel can be increased when the trigger is pulled.

3. The intercommunicating pore has a plurality of and forms plum blossom pore structure around the outside setting in shaft hole, be equipped with the sand grip of support on the right side of valve plate between two adjacent intercommunicating pores, and at the flat bottom, the bulge loop, form a intercommunication chamber that is in the connected state all the time with the intercommunicating pore between valve plate and the sand grip, the intercommunication chamber communicates with the bottle in normal use, and be full of liquid, when drawing the liquid chamber and producing the negative pressure and reaching the setting value, liquid is from fixed axle intercommunicating pore all around from all around punching press the valve plate, make the bulge loop break away from the flat bottom in the twinkling of an eye and open the passageway, supply liquid to get into around fast and draw the liquid chamber, and when withholding trigger, can promote the valve plate again through liquid.

4. The suction plug has a double-sealing structure, so that the problem of liquid overflow of the exhaust hole can be effectively solved while the sealing performance is enhanced.

5. The longitudinal check valve adopts a full-fitting type sealing design of a circular ring and a circular periphery of a circular hole, the elastic expansion part is made of high-elasticity materials, and when a trigger is pulled to enable the internal liquid pressure to reach a design value, a channel can be opened instantly to achieve an explosive type spraying effect; when the valve is closed, the instant closing effect can be achieved, and the quantitative accuracy is improved while the sealing stability is ensured. And block the movable part through the locating lever, the height that the restriction ring was pushed up can enough be guaranteed that the passageway is enough opened and supply liquid to spray away, can in time insert the round hole fast and close the passageway again after spraying, prevents the backward flow.

6. The nozzle adopts the design of rotatory auto-lock, convenient to use, and the function is stable, and assembly efficiency is high.

7. The trigger and the elastic arm are integrally formed by injection molding, the structure is simple, parts are reduced, the manufacturing cost is reduced, and the assembly efficiency is improved.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a cross-sectional view of an embodiment of a plastic pistol pump according to the invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

figure 4 is an exploded view of a second embodiment of the longitudinal check valve of the present invention;

FIG. 5 is a schematic structural view of the pump body;

fig. 6 is a cross-sectional view of a second embodiment of an all plastic pistol pump according to the invention;

FIG. 7 is a schematic diagram of a longitudinal check valve corresponding to the embodiment of FIG. 6;

fig. 8 is a cross-sectional view of a third embodiment of an all plastic pistol pump according to the invention;

fig. 9 is a schematic structural view of a longitudinal check valve corresponding to the embodiment in fig. 8.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 9, an all-plastic pistol pump comprises a pump body 1, wherein a lock cover 8 is connected to the lower portion of the pump body 1, the lock cover 8 is used for being connected with a bottle, a liquid spraying channel 11 is arranged in the pump body 1, a nozzle 2 is arranged at the outlet of the liquid spraying channel 11, a liquid outlet channel 12 and a liquid inlet channel 13 which are separated from each other up and down are arranged in the pump body 1, wherein the liquid outlet channel 12 is communicated with the liquid spraying channel 11, a liquid guiding cavity 14 is arranged on the side of the liquid outlet channel 12 and the liquid inlet channel 13, the upper portion of the liquid guiding cavity 14 is always communicated with the liquid outlet channel 12 through a normal opening 15, a suction plug 3 is arranged in the liquid guiding cavity 14, a trigger 4 which can drive the suction plug 3 to move left and right in the liquid guiding cavity 14 is hinged to the pump body 1, an elastic arm 5 which can be pressed against the pump body 1 and drive the trigger 4, and a lateral one-way valve which can open the liquid guide cavity 14 and the liquid inlet channel 13 when the suction plug 3 moves in a resetting way is arranged between the liquid guide cavity 14 and the liquid inlet channel 13.

The liquid inlet channel 13 is used for being communicated with a suction pipe inserted into a bottle, a lateral one-way valve is arranged between the liquid guide cavity 14 and the liquid inlet channel 13, when the trigger 4 is bounced by the elastic arm 5 to enable the suction plug 3 to move outwards, the volume of the liquid guide cavity 14 is increased to generate negative pressure, the negative pressure directly acts on the lateral one-way valve to enable the lateral one-way valve to be opened, liquid in the bottle enters the liquid guide cavity 14 through the suction pipe and the liquid inlet channel 13, and liquid inlet efficiency is high. When the trigger 4 is pulled, the solution in the liquid guide cavity 14 can quickly push the lateral one-way valve to close under the pushing of the suction plug 3, so that the liquid is prevented from flowing back to the bottle; and the liquid leading cavity 14 and the liquid outlet channel 12 are communicated with each other all the time by adopting the normal opening 15, so that the explosive force of the solution flowing out from the liquid leading cavity 14 to the liquid outlet channel 12 can be increased when the trigger 4 is pulled, and the improvement of the explosive force of spraying is facilitated.

As shown in fig. 1, 2, 6 and 8, the lateral check valve includes a t-shaped valve plug 6, the valve plug 6 is made of high-strength elastic material, the valve plug 6 includes a fixing shaft 61 and an elastic valve plate 62, a protruding ring 63 located on one side of the fixing shaft 61 is arranged on the edge of the valve plate 62, a shaft hole 16 and a communicating hole 17 which are used for communicating the liquid guiding cavity 14 and the liquid inlet channel 13 are arranged on the pump body 1, the shaft hole 16 and the communicating hole 17 are located on the inner side of the protruding ring 63, the fixing shaft 61 is fixed on the shaft hole 16, a flat bottom 140 opposite to the protruding ring 63 is arranged on the right bottom of the liquid guiding cavity 14, the protruding ring 63 abuts against the flat bottom 140 through the elastic action of the valve plate 62 and realizes sealing, and the lateral check valve plug has good sealing performance, simple.

As shown in the embodiment of FIG. 5, the communication holes 17 are provided in a plurality and around the outside of the shaft hole 16, and the communication holes 17 are integrally communicated with the shaft hole 16 to form a quincunx hole structure, which is simple in structure and simplifies the forming mold. As shown in fig. 2, a convex strip 170 which protrudes to one side of the valve plate 62 and is supported on the right side of the valve plate 62 is arranged between two adjacent communication holes 17, a communication cavity 630 which is always communicated with the communication hole 17 is formed among the flat bottom 140, the convex ring 63, the valve plate 62 and the convex strip 170, the communication cavity 630 is communicated with a bottle in a normal use process and is filled with liquid, when the negative pressure generated by the liquid guiding cavity 14 reaches a set value, the liquid presses the valve plate 62 from the periphery through the communication holes 17 around the fixed shaft 61, so that the convex ring 63 is separated from the flat bottom 140 instantly to open a channel, and the liquid can enter the liquid guiding cavity 14 from the periphery quickly. When the trigger 4 is pressed, the valve plate 62 can be quickly pushed by the liquid to press the convex ring 63 on the flat bottom 140, so that the liquid is prevented from flowing back.

As shown in fig. 1, 6 and 8, the sucking plug 3 comprises a plug rod 31, and a main one-way sealing ring 32 and an auxiliary one-way sealing ring 33 which are arranged on the outer side of the plug rod 31, the main one-way sealing ring 32 is arranged at the right end of the plug rod 31, the auxiliary one-way sealing ring 33 is arranged at the left side of the main one-way sealing ring 32, the main one-way sealing ring 32 and the auxiliary one-way sealing ring 33 form a left-right double sealing structure with the inner wall of the liquid leading cavity 14, and when the trigger 4 is in a spring state, the auxiliary one-way sealing ring 33 is positioned at the left side of the vent hole 143, and the main one-way sealing ring 32 is positioned at the right side of the vent hole 143, so that the problem of liquid overflow of the. The vent hole 143 communicates the inside of the lock cover 8 and the left portion of the drainage chamber 14, and when the trigger 4 is pulled down, the auxiliary one-way sealing ring 33 moves to the right side of the vent hole 143, so that the vent hole communicates with the outside air through the orifice of the drainage chamber 14.

An annular groove 34 with a rightward notch is formed between the main one-way sealing ring 32 and the plug rod 31, a positioning ring 141 protruding leftwards in the liquid guiding cavity 14 is arranged on the right bottom of the liquid guiding cavity 14, the valve plug 6 is enclosed inside by the positioning ring 141 and is opposite to the annular groove 34 in the left-right direction, and a notch 142 corresponding to the normally open port 15 is formed in the positioning ring 141. When the trigger 4 is pulled down, the positioning ring 141 can be inserted into the annular groove 34 to extrude the liquid in the annular groove 34, and the right end of the plug rod 31 is inserted into the positioning ring 141, so that the liquid in the liquid guide cavity 14 is pressed out as much as possible, and the utilization rate is improved.

As shown in the embodiments of fig. 1 to 9, the liquid spraying channel 11 and the liquid outlet channel 12 are arranged at a certain angle, an inlet of the liquid spraying channel 11 is arranged in the middle of the liquid outlet channel 12, a longitudinal one-way valve 7 only allowing liquid to flow from the liquid outlet channel 12 to the liquid spraying channel 11 is arranged between the liquid outlet channel 12 and the liquid spraying channel 11, the longitudinal one-way valve 7 includes an elastic expansion part 71 located at the upper part of the liquid outlet channel 12, the elastic expansion part 71 is hollow, and an edge 711 is arranged at the outer side of the upper end of the elastic expansion part 71, the pump body 1 is connected with a housing 9, the housing 9 is provided with a collar 91 sleeved from top to bottom on the outer side of the liquid outlet channel 12, the housing 9 is provided with a pressing ring 92 located on the inner side of the collar 91 and used for pressing the upper end of the longitudinal one-way valve 7 to tightly press the edge of the edge 711 on the upper end of the, the lower part of the elastic telescopic part 71 is connected with a movable part 72 which can move up and down in the liquid outlet channel 12, the lower end of the movable part 72 is provided with a circular ring 721, a circular hole 121 for the circular ring 721 to insert to realize sealing connection is arranged above the normal opening 15 on the liquid outlet channel 12, the bottom of the circular hole 121 is provided with a step 19 which can block the circular ring 721 from the lower part, the elastic telescopic part 71 elastically pushes the movable part 72 downwards to enable the circular ring 721 to insert into the circular hole 121, the longitudinal one-way valve 7 is provided with an inner hole 70, and the shell 9 is provided with a positioning rod 93 which is inserted downwards in the inner hole 70 and can push the bottom of the inner hole 70 from the upper part to limit the rising height of the movable part 72 when the movable part 72 moves upwards.

By adopting the full-fitting sealing design of the circular periphery of the circular ring 721 and the circular hole 121, the elastic expansion part 71 is made of a high-elasticity material, and when the trigger 4 is pulled to enable the internal liquid pressure to reach a designed value, a channel can be opened instantly to achieve an explosive type spraying effect; when the valve is closed, the instant closing effect can be achieved, and the quantitative accuracy is improved while the sealing stability is ensured. And block movable part 72 through locating lever 93, the height that restriction ring 721 was pushed up can enough be guaranteed that the passageway is enough opened and supply liquid to spray out, again after spraying, makes ring 721 can in time insert the round hole 121 fast and close the passageway, prevents the backward flow.

As shown in the embodiment of fig. 1 and 4, and the embodiment of fig. 6 and 7, as two embodiments of the longitudinal check valve 7, the upper end of the movable portion 72 is provided with a check sealing ring 73 located above the inlet of the liquid spraying channel 11, the check sealing ring 73 is connected with the liquid outlet channel 12 in a sealing manner, two or more gaps 74 are arranged on the side surface of the elastic expansion portion 71 around the circumferential direction, the elastic force of the elastic expansion portion 71 can be adjusted through the design of the gaps 74, and the sealing performance is enhanced and the liquid is effectively prevented from overflowing through the double sealing structure at two positions of the check sealing ring 73 and the pressing edge 711.

As shown in fig. 4, the elastic expansion part 71 is a bowl-shaped structure, and two gaps 74 are formed on the side surface of the elastic expansion part in the circumferential direction, so that the pushing force required for initial shrinkage deformation is small, and the elastic expansion part is easily pushed up by the solution from below to communicate the liquid outlet channel 12 and the liquid spraying channel 11; when the movable portion 72 moves upward to deform the elastic expansion portion 71 by a certain amount, the elastic expansion portion can have a good elastic force, so that the movable portion 72 can be quickly pushed to reset by rebounding when the negative pressure is reduced.

As a third embodiment of the longitudinal check valve 7, as shown in fig. 8 and 9, the middle of the elastic expansion part 71 is concave from the side, and the side wall is an integral annular structure, so that the elastic force is large and the rebound is rapid.

As shown in fig. 3 and 5, in the embodiment, a circular joint 111 is provided at the outlet of the liquid spraying channel 11, the nozzle 2 is sleeved outside the joint 111 and can rotate relative to the joint 111, a protruding buckle 112 is provided on the outer side surface of the joint 111, a clamping groove for clamping the buckle 112 and preventing the nozzle 2 from coming off the joint 111 is provided in the nozzle 2, the clamping groove is an arc-shaped groove around the joint 111 and allows the buckle 112 to rotate at a certain angle, a liquid outlet 113 communicated with the liquid spraying channel 11 is provided on the joint 111, the nozzle 2 is provided with a sealing connection ring 22 inserted into the liquid outlet 113 and connected with the inner wall of the liquid outlet 113 in a sealing manner, and a blocking mechanism capable of blocking the liquid from being sprayed after the nozzle 2 rotates at a certain angle is provided between the nozzle 2 and the liquid outlet 113, so that the liquid cannot be discharged by pressing a trigger by mistake.

The blocking mechanism comprises a sleeve column 23 positioned on the inner side of the sealing connecting ring 22 and a central column 114 arranged at the liquid outlet 113 and extending into the sleeve column 23, a first groove 24 communicated with the outlet of the nozzle 2 is arranged at the bottom of the inner side of the sleeve column 23, a second groove 25 communicated with the liquid outlet 113 is arranged on the inner side wall of the sleeve column 23, and a third groove 115 capable of communicating the first groove 24 with the second groove 25 is arranged on the central column 114. Rotating the nozzle 2 to enable the second groove 25 to stagger the third groove 115 to block the communication between the first groove 24 and the second groove 25, so as to realize blocking and prevent liquid from discharging; the nozzle 2 is rotated to enable the second groove 25 to be in butt joint with the third groove 115 and the first groove 24, and the connection can be achieved, so that the operation is simple and convenient.

In the embodiment shown in fig. 4, the elastic arm 5 and the trigger 4 are integrally injection molded, two elastic arms 5 are respectively located at the left side and the right side of the pump body 1, and the elastic arms 5 are of an upward convex bent structure. The rear end of the elastic arm 5 is provided with a hook 51, and the rear part of the pump body 1 is provided with a hook groove 18 matched with the hook 51, so that the structure is simple, parts are reduced, the manufacturing cost is reduced, and the assembly efficiency is improved.

This plastic pistol pump, its component parts all adopt plastics to make, and environmental protection safety avoids adopting the corrosivity problem that the metal leads to, and wherein valve plug 6 and vertical check valve 7 adopt the PE material, and the pump body 1, nozzle 2, inhale stopper 3, trigger 4, elastic arm 5, locking closure 8, shell 9 adopt the PP material, and environmental protection safety can satisfy the EU better and retrieve the standard, improves resource reuse rate.

Claims

1. An all-plastic pistol pump is characterized in that: comprises a pump body (1), the pump body (1) is connected with a locking cover (8) at the lower part, a liquid spraying channel (11) is arranged in the pump body (1), a nozzle (2) is arranged at the outlet of the liquid spraying channel (11), a liquid outlet channel (12) and a liquid inlet channel (13) which are separated from each other from top to bottom are arranged in the pump body (1), wherein the liquid outlet channel (12) is communicated with the liquid spraying channel (11), a liquid leading cavity (14) is arranged at the side part of the liquid outlet channel (12) and the liquid inlet channel (13), the upper part of the liquid leading cavity (14) is always communicated with the liquid outlet channel (12) through a normal opening (15), a suction plug (3) is arranged in the liquid leading cavity (14), a trigger (4) which can drive the suction plug (3) to do left and right piston movement in the liquid leading cavity (14) is hinged on the pump body (1), and an elastic arm (5) which can be pressed on the pump body (1) and drive the suction plug (3) to reset, and a lateral one-way valve which can open the liquid guide cavity (14) and the liquid inlet channel (13) to be communicated when the suction plug (3) moves in a resetting way is arranged between the liquid guide cavity (14) and the liquid inlet channel (13).

2. A plastic pistol pump according to claim 1, characterized in that: lateral direction check valve includes valve plug (6) of T-shaped, valve plug (6) are including fixed axle (61) and elasticity valve plate (62), be equipped with bulge loop (63) that are located fixed axle (61) one side on the edge of valve plate (62), be equipped with shaft hole (16) and intercommunicating pore (17) that the intercommunication draws sap cavity (14) and inlet channel (13) on the pump body (1), shaft hole (16) and intercommunicating pore (17) are located bulge loop (63) inboardly, fixed axle (61) are fixed on shaft hole (16), draw and be equipped with flat base (140) relative with bulge loop (63) on the right side end of sap cavity (14), bulge loop (63) lean on flat base (140) and realize sealing through the elastic action of valve plate (62).

3. A plastic pistol pump according to claim 2, characterized in that: the communicating holes (17) are arranged around the outer side of the shaft hole (16) in a multiple mode, the communicating holes (17) and the shaft hole (16) are communicated into a whole and form a quincuncial hole structure, a protruding strip (170) protruding towards one side of the valve plate (62) and supported on the right side of the valve plate (62) is arranged between every two adjacent communicating holes (17), and a communicating cavity (630) which is always communicated with the communicating holes (17) is formed among the flat bottom (140), the protruding ring (63), the valve plate (62) and the protruding strip (170).

4. A plastic pistol pump according to claim 3, characterized in that: the suction plug (3) comprises a plug rod (31), a main one-way sealing ring (32) and an auxiliary one-way sealing ring (33) which are arranged on the outer side of the plug rod (31), the main one-way sealing ring (32) is arranged at the right end of the plug rod (31), the auxiliary one-way sealing ring (33) is arranged at the left side of the main one-way sealing ring (32), the main one-way sealing ring (32) and the auxiliary one-way sealing ring (33) form a left and right double sealing structure with the inner wall of the liquid guide cavity (14), an annular groove (34) with a rightward notch is arranged between the main one-way sealing ring (32) and the plug rod (31), a positioning ring (141) which protrudes leftwards in the liquid guiding cavity (14) is arranged at the right lateral bottom of the liquid guiding cavity (14), the positioning ring (141) encloses the valve plug (6) inside and is opposite to the annular groove (34) left and right, the positioning ring (141) is provided with a notch (142) corresponding to the normal opening (15).

5. A plastic pistol pump according to claim 1, characterized in that: the liquid spraying channel (11) and the liquid outlet channel (12) are arranged at a certain angle, an inlet of the liquid spraying channel (11) is arranged in the middle of the liquid outlet channel (12), a longitudinal one-way valve (7) only allowing liquid to flow from the liquid outlet channel (12) to the liquid spraying channel (11) is arranged between the liquid outlet channel (12) and the liquid spraying channel (11), the longitudinal one-way valve (7) comprises an elastic telescopic part (71) positioned at the upper part of the liquid outlet channel (12), the elastic telescopic part (71) is hollow, an edge pressing part (711) is arranged at the outer side of the upper end of the elastic telescopic part (71), a shell (9) is connected onto the pump body (1), a lantern ring (91) sleeved on the outer side of the liquid outlet channel (12) from top to bottom is arranged on the shell (9), a pressing ring (92) used for pressing the upper end of the longitudinal one-way valve (7) to tightly press the edge of the edge pressing part (711) on the upper end opening of, the pressing ring (92) is hermetically connected with the upper port of the liquid outlet channel (12) by the pressing edge (711), a movable part (72) which can move up and down in the liquid outlet channel (12) is connected below the elastic telescopic part (71), the lower end of the movable part (72) is provided with a circular ring (721), a circular hole (121) for the circular ring (721) to be inserted to realize sealing connection is arranged above the normal opening (15) on the liquid outlet channel (12), the bottom of the round hole (121) is provided with a step (19) which can block the ring (721) from the lower part, the elastic expansion part (71) elastically pushes the movable part (72) downwards to enable the circular ring (721) to be inserted into the circular hole (121), an inner hole (70) is formed in the longitudinal check valve (7), and a positioning rod (93) which is inserted into the inner hole (70) downwards and can prop against the bottom of the inner hole (70) from above to limit the rising height of the movable part (72) when the movable part (72) moves upwards is arranged on the shell (9).

6. An all plastic pistol pump according to claim 5, characterized in that: the upper end of the movable part (72) is provided with a one-way sealing ring (73) positioned above the inlet of the liquid spraying channel (11), the one-way sealing ring (73) is in sealing connection with the liquid outlet channel (12), and the side surface of the elastic telescopic part (71) is provided with two or more gaps (74) around the circumferential direction.

7. An all plastic pistol pump according to claim 6, characterized in that: the elastic expansion part (71) is of a bowl-shaped structure.

8. A plastic pistol pump according to claim 1, characterized in that: a round joint (111) is arranged at the outlet of the liquid spraying channel (11), the nozzle (2) is sleeved outside the joint (111) and can rotate relative to the joint (111), a convex buckle (112) is arranged on the outer side surface of the joint (111), a clamping groove for clamping the buckle (112) and preventing the nozzle (2) from falling off the joint (111) is arranged in the nozzle (2), the clamping groove is an arc-shaped groove arranged around the joint (111) and is used for the buckle (112) to rotate for a certain angle, a liquid outlet (113) communicated with the liquid spraying channel (11) is arranged on the joint (111), the nozzle (2) is provided with a sealing connecting ring (22) which is inserted in the liquid outlet (113) and is connected with the inner wall of the liquid outlet (113) in a sealing way, a blocking mechanism which can block the liquid from being sprayed out after the nozzle (2) rotates for a certain angle is arranged between the nozzle (2) and the liquid outlet (113).

9. An all plastic pistol pump according to claim 8, characterized in that: the blocking mechanism comprises a sleeve column (23) located on the inner side of the sealing connecting ring (22) and a central column (114) arranged at the liquid outlet (113) and extending into the sleeve column (23), a first groove (24) communicated with the outlet of the nozzle (2) is formed in the bottom of the inner side of the sleeve column (23), a second groove (25) communicated with the liquid outlet (113) is formed in the inner side wall of the sleeve column (23), a third groove (115) capable of communicating the first groove (24) with the second groove (25) is formed in the central column (114), and the nozzle (2) is rotated to enable the second groove (25) to be staggered with the third groove (115) to block the communication between the first groove (24) and the second groove (25).

10. A plastic pistol pump according to claim 1, characterized in that: the utility model discloses a pump, including the pump body (1), bullet arm (5) and trigger (4), bullet arm (5) have two and lie in the left and right sides of the pump body (1) respectively, bullet arm (5) are the bellied curved structure that makes progress, the rear end of bullet arm (5) is equipped with pothook (51), the rear portion of the pump body (1) is equipped with and catches hold of with a hook (51) complex hook groove (18).