CN111558478B - External spring type spray gun head with double one-way valve structure - Google Patents
External spring type spray gun head with double one-way valve structure Download PDFInfo
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- CN111558478B CN111558478B CN202010362820.0A CN202010362820A CN111558478B CN 111558478 B CN111558478 B CN 111558478B CN 202010362820 A CN202010362820 A CN 202010362820A CN 111558478 B CN111558478 B CN 111558478B
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- trigger
- piston
- mounting
- seat
- limiting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1009—Piston pumps actuated by a lever
- B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0008—Sealing or attachment arrangements between sprayer and container
Abstract
The invention relates to the field of spraying devices, and discloses an external spring type spraying gun head with a double one-way valve structure, which comprises a mounting seat (2), and a trigger (1), a spring piece (3), a piston (100), a nozzle (300) and a cover body (10) which are arranged on the mounting seat (2); the mounting seat (2) comprises a piston sleeve (4) for mounting the piston (100); piston (100) seal installation can rotate around mount pad (2) on mount pad (2), the one end and the trigger (1) of piston (100) are connected, trigger (1) drive piston (100) and carry out reciprocating motion, the one end of spring part (3) is installed on mount pad (2) and lid (10), the other end of spring part (3) is installed and is used for collecting elastic potential energy and make trigger (1) and piston (100) self return on trigger (1). The device has the advantages of long service life, compact structure, few parts and convenient installation.
Description
Technical Field
The invention relates to the field of spraying equipment, in particular to an external spring type spraying gun head with a double one-way valve structure and a spraying gun head.
Background
The liquid spray gun is used as simple and effective liquid atomization equipment, is widely applied to the fields of household chemical cleaning agents, automobile protective products, gardening products, animal care products, furniture polishing products and the like, brings convenience and rapidness for people, and has the working principle that the air pressure in a spray can is increased through the reciprocating motion of a trigger, so that liquid in the spray can is sprayed out. Wherein after the liquid is sprayed out, the trigger can automatically return under the action of the spring.
For example, chinese patent CN201020286132.2, it adopts the trigger motion structure of the formula of buckleing to one side, and the whole that spring and piston constitute is placed with the horizontal direction certain angle, and when using, the pressure of user's hand can furthest vertically spread into the rifle internal, compares the complete level of traditional spray gun and places spring and piston and be partly power because the angle problem scatters and disappears, and this technique can practice thrift strength more, and it is also lighter to feel. However, the spring structure occupies a large liquid storage space due to the fact that most of the springs are inserted into the cavity, the service life of the springs contacting with liquid for a long time is shortened, and meanwhile the liquid is polluted. Moreover, the spring is troublesome to replace, and the elastic recovery capability of the spring becomes worse after long-term use.
And this kind of spray gun casing trigger mounting structure is reliable inadequately, and appearance cladding nature is not strong, moreover because the mount pad of this shower nozzle is entity structure as an organic whole basically, and weight is heavier, and the outward appearance is looked and is felt the wholeness relatively poor moreover. And this kind of spray gun structure need use the ball valve, spare part is more, and the fault rate is higher.
Disclosure of Invention
The invention provides an external spring type spray gun head with a double one-way valve structure, aiming at the defects of short service life of a spray gun head spring, more parts, large occupied space and high failure rate in the prior art.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the external spring type spray gun head with the double one-way valve structure comprises a mounting seat, and a trigger, a spring part, a piston, a nozzle and a cover body which are arranged on the mounting seat;
the mounting seat comprises a piston sleeve for mounting the piston; the piston is hermetically arranged in the piston sleeve, the trigger is arranged on the mounting seat and can rotate around the mounting seat, one end of the piston is connected with the trigger, the trigger drives the piston to reciprocate, one end of the spring part is arranged on the mounting seat and the cover body, and the other end of the spring part is arranged on the trigger and is used for collecting elastic potential energy to enable the trigger and the piston to automatically return;
a liquid spraying channel is arranged in the mounting seat, a piston cavity is formed in the piston sleeve and is communicated with the liquid spraying channel, a one-way valve seat is arranged on the bottom surface of the piston cavity, a first mounting opening and a second mounting opening are arranged on the one-way valve seat and are communicated with the bottle body, a one-way valve sleeve is arranged on the one-way valve seat and comprises a valve body, a first sealing bowl cover is integrally formed on the upper side of the valve body and is in a horn shape with an opening facing away from a trigger, the maximum caliber of the first sealing bowl cover is larger than the inner diameter of the first mounting opening, the minimum outer diameter of the first sealing bowl cover is smaller than the inner diameter of the first mounting opening, the outer side surface of the opening of the first sealing bowl cover is sealed with the inner side surface of the first mounting opening, a first limiting column is arranged in the first sealing bowl cover, a second limiting column is arranged in the first mounting opening, the first limiting column and the second limiting column are arranged coaxially;
a sealing ball bowl is arranged on the lower side of the valve body, one end, far away from a trigger, of the sealing ball bowl is a hemispherical bowl, a second mounting port is a hole with a circular section, a chamfer or a fillet is arranged on the edge of an opening of the second mounting port, the maximum diameter of the hemispherical bowl is larger than the maximum outer diameter of the second mounting port, the second mounting port and the hemispherical bowl are coaxially arranged, connecting strips are connected to two sides of the sealing ball bowl, and the sealing bowl is suspended by the two connecting strips to be not in contact with the adjusting base; the connecting strip is made of elastic rubber;
the trigger is pushed, the trigger rotates around the mounting seat and simultaneously pushes the piston to move along the piston cavity, water in the piston cavity extrudes the edge of the first sealing bowl cover, and the water is extruded to the first mounting opening and is sprayed out from the nozzle along the liquid spraying channel; remove external force, the trigger self return under the effect of spring part, the in-process first sealed bowl cover and the first installing port of self return are sealed, and sealed ball bowl is adsorbed under the effect of vacuum and breaks away from and the second installing port is sealed, and the water in the container is inhaled to the piston chamber. The device realizes the demand that the spray gun head needs two check valves respectively when spraying and absorbing water through designing the valve body and designing first sealed bowl cover and sealed ball bowl, and first sealed bowl cover and sealed ball bowl structure as an organic whole compares with current ball valve and check valve, and this kind of valve body installation is simpler, only needs to install a spare part in addition and can realize the check switch of two control mouths, and control is convenient moreover, and the maintenance is simple, long service life.
Preferably, the mounting seat comprises a base for mounting the cover body, a spray head part for mounting the spray nozzle and a bracket for mounting the trigger and the shell; the support is arranged on the upper side of the piston sleeve, the spray head part is arranged at the end part of the support, a liquid spraying pipe for spraying liquid is arranged in the support, the support comprises second baffle plates on the left side and the right side, and an assembly area for assembling a trigger is formed in an area between the second baffle plates close to one end of the spray head part; the liquid spraying pipe is positioned between the second baffles, second slots are formed between two side faces of the liquid spraying pipe positioned in the assembly area and the second baffles on two sides, bottom plates extend from two sides of the liquid spraying pipe shell, mounting slot frames are formed on the bottom plates in a mounting mode, rotary slots for containing trigger rotating shafts are formed in the mounting slot frames, and the rotary slots and the second slots are of a communicating structure; the support is connected with one end of the piston sleeve far away from the trigger in an integrated forming mode, a reinforcing plate is arranged between the liquid spraying pipe and the piston sleeve, reinforcing wings are formed on two sides of the liquid spraying pipe, and second sockets for mounting the shell are formed in the edge portions of the reinforcing wings.
Preferably, one end of the liquid spraying pipe, which is far away from the trigger, is provided with a vent pipe, the vent pipe is communicated with the interior of the liquid spraying pipe, and the vent pipe is arranged perpendicular to the liquid spraying pipe; the base is including the spacing seat that is used for installing the spring part, and spacing seat is used for being the semicircular face with the face of spring part assembly.
Preferably, curved surface guard plates are formed on two sides of the piston sleeve, the lower ends of the curved surface guard plates are integrally formed with the base, the upper sides of the curved surface guard plates are integrally formed with the second baffle plate, vertical plates extend from the outer sides of the two curved surface guard plates, and an extension frame is integrally formed on the rear side of the piston sleeve; the spray gun head further comprises a shell sleeved outside the mounting seat, a buckle is arranged inside the shell, the width of the buckle is the same as that of the second socket, a plug is integrally formed inside the shell and comprises a sealing sleeve and a sealing plug arranged in the sealing sleeve, a latch is arranged on the inner side of the lower end of the buckle, the buckle is inserted into the second socket, and the latch is buckled on the lower end face of the reinforcing wing; the sealing plug is inserted at the end of the vent pipe, and the sealing sleeve is sleeved outside the vent pipe in a sealing manner; the support, the piston sleeve and the base are coated on the inner side of the shell.
Preferably, the spring element and the trigger are further included, the trigger is arranged in the rotating groove through the second slot, and the trigger can rotate around the rotating groove; the lower extreme of spring part is contradicted on the lid, spring part and spacing seat joint, and the other end and the trigger of spring part are contradicted.
Preferably, one end of the piston close to the trigger is provided with a connector, and the connector is connected with the inner side of the trigger; the connector comprises an inserting column with the end part in a horizontal state, the left end face and the right end face of the inserting column are both provided with inclined planes, the inserting column is gradually reduced along the axial dimension close to the trigger direction, the inserting column and the piston are fixedly connected through a connecting rib, the connecting rib is fixedly connected to the middle position of the inserting column, the inner side of the trigger is provided with a first notch used for being assembled with the inserting column, and the first notch comprises a first inlet used for inserting the inserting column; the size of the first inlet along the axial direction of the inserted column is larger than or equal to the minimum size of the inserted column in the axial direction and smaller than the maximum size of the inserted column in the axial direction, and the width of the first notch is the same as the radial size of the inserted column.
Preferably, the spring part comprises a limiting snap ring at the bottom, a limiting bayonet matched with the shape of the outer side surface of the limiting seat is formed on the limiting snap ring, the limiting bayonet is clamped on the outer side surface of the limiting seat, and the direction of the limiting bayonet is the direction far away from the trigger; the limiting snap ring is integrally provided with a return frame which is positioned at two sides of the piston sleeve; the return frame is abutted against the inner side of the trigger; in the process of pressing the trigger, the trigger acts on the return frame, the return frame deforms to accumulate elastic potential energy, and after the external force is withdrawn, the return frame releases the elastic potential energy to return the trigger; the reinforcing plates extend from two sides of the limiting bayonet and abut against the extending surfaces on two sides of the side surface of the limiting seat.
Preferably, the return frame is composed of a first elastic frame and a second elastic frame which are symmetrically arranged on two sides of the piston sleeve, the first elastic frame and the second elastic frame are identical in structure, the first elastic frame comprises a vertical section and a support section which is formed by bending and approximately horizontal, a clamping groove which corresponds to the first elastic frame and the second elastic frame in a one-to-one mode is formed in a gap between the flanging and the first clamping plate, and the end head of the support section is abutted to the clamping groove.
Preferably, the mounting seat comprises a cover body and a spray head body, the cover body is used for being connected with the kettle body, the limiting seat and the piston sleeve are integrally formed on the spray head body, the upper end face of the cover body is lower than the upper end face of the limiting seat, and the limiting clamping ring is arranged on the upper end face of the cover body in a seated mode and clamped with the limiting seat.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:
the invention relates to a novel mounting seat which can be mounted and matched with a piston, a shell and a trigger, and a limiting seat independently arranged on the mounting seat can be suitable for mounting an external spring. The shell can roughly coat the appearance of the mounting seat, so that the appearance of the spray gun head is more compact, and the integration degree is higher. The trigger mounting mechanism designed in the method has the characteristics of compact mounting and stable trigger rotation. And the designed spray gun head has the advantages of large storage space, external arrangement of the spring and long service life.
The piston is connected with the trigger through the mode of embedding, has guaranteed the area of contact of piston with the trigger moreover through the design to the spliced pole structure, so at the in-process that the trigger promoted the piston, the trigger atress face is great, can not cause the damage to trigger and piston. And the larger contact area can ensure that the piston is more stable in the pushing process, the phenomenon of inclined blocking can not occur, and the sealing structure at the edge part of the piston is not easy to damage. The novel spring part is different from the traditional spring and clamp spring in structure and is arranged outside the liquid storage cavity, so that direct contact with liquid is avoided, the service life of the spring part is longer, meanwhile, the spring part is arranged by utilizing the space between two sides of the piston sleeve and the handle, the size of the whole device is not increased, and the structure is more compact; and also avoid occupying the space in traditional stock solution intracavity, it is more reasonable to arrange. Meanwhile, the stress process of the return frame is that the return frame is light firstly and then heavy, the return frame is more suitable for human operation, and the trigger is arranged at the end part of the return frame, so that the return speed of the trigger is high. Through the design of piston and trigger connection structure and the design of spring part, guaranteed that whole trigger motion is stable, the skew can not appear, the return is rapid moreover.
And the device realizes the demand that the spray gun head needs two check valves respectively when spraying and absorbing water through designing the valve body and designing first sealed bowl cover and sealed ball bowl, and first sealed bowl cover and sealed ball bowl structure as an organic whole compare with current ball valve and check valve, and this kind of valve body installation is simpler, only needs to install a spare part in addition and can realize the check switch of two control mouths, and control is convenient moreover, and the maintenance is simple, long service life.
Drawings
Figure 1 is an external view of a spray gun head.
Fig. 2 is a schematic structural view of fig. 1 with the protective shell removed.
Fig. 3 is a schematic view of the protective case of fig. 1 with the protective case removed.
Fig. 4 is a schematic view of the structure of the spring member.
Fig. 5 is a schematic structural view of the mount.
Fig. 6 is a schematic view of the trigger structure.
Fig. 7 is a schematic view of the trigger structure.
FIG. 8 is a schematic view of the trigger and piston connection.
Fig. 9 is a schematic view of the piston structure.
Fig. 10 is a structural view of the mount from above.
Fig. 11 is a schematic structural view of the housing.
Fig. 12 is a schematic view of the internal structure of the spray gun head.
Fig. 13 is a partially enlarged view of fig. 12.
Fig. 14 is a structural schematic view of a one-way valve sleeve.
The names of the parts indicated by the numerical references in the drawings are as follows: 1-trigger, 2-mounting seat, 3-spring piece, 4-piston sleeve, 5-limiting seat, 6-limiting snap ring, 7-limiting bayonet, 8-force-returning frame, 9-reinforcing plate, 10-cover body, 11-nozzle body, 12-first elastic frame, 13-second elastic frame, 14-vertical section, 15-supporting section, 16-clamping groove, 17-support, 19-first rotating arm, 20-second rotating arm, 21-rotating shaft, 22-rotating groove, 100-piston, 101-connector, 102-inserting column, 103-connecting rib, 104-first notch, 105-first inlet, 106-flanging, 107-first clamping plate, 108-reinforcing piece, 109-first limiting plate, 200-base, 201-nozzle part, 202-liquid-spraying pipe, 203-second baffle, 205-second slot, 206-bottom plate, 207-mounting groove frame, 209-reinforcing wing, 210-second slot, 211-base, 212-curved surface-protecting plate, 213-vertical plate, 214-buckle, 215-latch, 217-sealing plug, 218-sealing sleeve, 219-shell, 300-nozzle, 301-liquid spray channel, 302-piston cavity, 312-one-way valve seat, 303-first mounting port, 304-second mounting port, 305-one-way valve sleeve, 306-valve body, 307-first sealing bowl cover, 308-first limit column, 309-second limit column, 310-sealing ball bowl, 311-connecting strip.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
The external spring type spray gun head with the double one-way valve structure comprises a mounting seat 2, a trigger 1, a spring part 3, a piston 100, a nozzle 300 and a cover body 10, wherein the trigger 1, the spring part 3, the piston 100, the nozzle 300 and the cover body are mounted on the mounting seat 2; the housing is mounted on the mounting base 2. The mounting seat 2 includes a piston sleeve 4 for mounting the piston 100; the piston 100 is hermetically arranged in the piston sleeve 4, the trigger 1 is arranged on the mounting seat 2 and can rotate around the mounting seat 2, one end of the piston 100 is connected with the trigger 1, the trigger 1 drives the piston 100 to reciprocate, one end of the spring element 3 is arranged on the mounting seat 2 and the cover body 10, and the other end of the spring element 3 is arranged on the trigger 1 and is used for collecting elastic potential energy to enable the trigger 1 and the piston 100 to automatically return; the spring part 3 is a metal part, the mounting seat 2 is a plastic part or a metal part, the inner side surface of the cover body 10 is provided with an internal thread for being fixedly connected with the bottle body, the piston 100 is a rubber part, and the piston 100 comprises two sealing lips 401 which are coaxially arranged.
The liquid spraying channel 301 is arranged in the mounting seat 2, the piston cavity 302 is formed in the piston sleeve 4, the piston cavity 302 is communicated with the liquid spraying channel 301, the one-way valve seat 312 is mounted on the bottom surface of the piston cavity 302, the one-way valve seat 312 is provided with a first mounting opening 303 and a second mounting opening 304, the first mounting opening 303 and the second mounting opening 304 are holes with circular cross sections, and the first mounting opening 303 is internally provided with a limiting step for limiting the first sealing bowl cover 307. The first mounting hole 303 is communicated with the liquid spraying channel 301, the second mounting hole 304 is used for being communicated with a bottle body, the one-way valve seat 312 is provided with a one-way valve sleeve 305, the one-way valve sleeve 305 comprises a valve body 306, the upper side of the valve body 306 is integrally formed with a first sealing bowl cover 307, the first sealing bowl cover 307 is in a horn shape with an opening facing away from the trigger 1, the maximum caliber of the first sealing bowl cover 307 is larger than and equal to the inner diameter of the first mounting hole 303, the minimum outer diameter of the first sealing bowl cover 307 is smaller than the inner diameter of the first mounting hole 303, the outer side surface of the opening of the first sealing bowl cover 307 is sealed with the inner side surface of the first mounting hole 303, a first limiting column 308 is arranged in the first sealing bowl cover 307, a second limiting column 309 is arranged in the first mounting hole 303, and the first limiting column 308 and the second limiting; the first sealing bowl cover 307 is an elastic rubber part, when water is sprayed, the first limiting column 308 is abutted against the second limiting column 309, then the edge of the first sealing bowl cover 307 is deformed by the strong pressure of liquid, and the liquid enters the liquid spraying channel 301 and is sprayed out from the nozzle 300; wherein the one-way valve housing 305 is secured in interference fit with the one-way valve seat 312 during installation.
A sealing ball bowl 310 is arranged on the lower side of the valve body 306, one end, far away from the trigger 1, of the sealing ball bowl 310 is a hemispherical bowl, the section of the second mounting port 304 is a hole with a circular section, a chamfer or a fillet is arranged on the opening edge of the second mounting port 304, the maximum diameter of the hemispherical bowl is larger than the maximum outer diameter of the second mounting port 304, the second mounting port 304 and the hemispherical bowl are coaxially arranged, connecting strips 311 are connected to two sides of the sealing ball bowl 310, and the sealing ball bowl 310 is suspended by the two connecting strips 311 to be not in contact with the one-way valve seat 312; the connecting bar 311 is made of elastic rubber; the connecting strip 311 enables the sealing ball cup 310 to be approximately in a shaking state, the sealing ball cup 310 is sealed to the second mounting port 304 in an initial state, in the trigger returning process, vacuum in the piston cavity 302 can absorb the sealing ball cup 310 to enable the sealing ball cup 310 and the second mounting port 304 to be separated from sealing, liquid in the bottle body is sucked into the piston cavity 302, and when the trigger 1 returns to the initial position, the sealing ball cup 310 closes the second mounting port 304 under the action of self elasticity.
When the trigger 1 is pushed, the trigger 1 rotates around the mounting seat 2 and simultaneously pushes the piston 100 to move along the piston cavity 302, water in the piston cavity 302 presses the edge of the first sealing bowl cover 307, and the water is pressed to the first mounting opening 303 and is sprayed out from the spray nozzle 300 along the spray passage 301; when the external force is removed, the trigger 1 automatically returns under the action of the spring element 3, the first sealing bowl cover 307 and the first mounting port 303 are sealed in the automatic returning process, the sealing ball bowl 310 is adsorbed and separated under the action of vacuum and is sealed with the second mounting port, and water in the container is sucked into the piston cavity 302. In order to ensure the air pressure of the bottle body to be stable, the inner wall of the piston cavity 302 is provided with a breathing hole 400 at the motion section of the piston 100, the breathing hole 400 penetrates through the bottom of the mounting seat 2 to be communicated with the inside of the bottle body, and the breathing hole 400 is not communicated with the liquid in the breathing cavity 302.
In order to facilitate understanding of the technical solution, the structure of the mounting base 2 is described below, the mounting base 2 is an integrally formed structure, and the mounting base 2 comprises a piston sleeve 4 for mounting a piston, a base 200 for mounting a cover body, a spray head portion 201 for mounting a spray head, and a bracket 17 for mounting a trigger 1 and a housing 219; the bracket 17 is arranged on the upper side of the piston sleeve 4, the spray head part 201 is arranged at the end part of the bracket 17, a spray pipe 202 for spraying liquid is arranged in the bracket 17, the bracket 17 comprises second baffles 203 at the left side and the right side, and an assembly area for assembling the trigger 1 is formed in the area between the second baffles 203 close to one end of the spray head part 201; the liquid spray pipe 202 is located between the second baffles 203, a second slot 205 is formed between two side faces of the liquid spray pipe 202 located in the assembly area and the second baffles 203 on two sides, bottom plates 206 extend from two sides of the shell 219 of the liquid spray pipe 202, a mounting slot frame 207 is formed on the bottom plates 206 in a mounting manner, a rotary slot 22 for containing a rotary shaft of the trigger 1 is formed in the mounting slot frame 207, and the rotary slot 22 and the second slot 205 are of a communicating structure. During installation, the rotating arm of the trigger 1 penetrates out of the second slot 205, then the rotating arm of the trigger 1 is moved to the position above the rotating groove 22, the rotating shaft of the rotating arm is clamped in the rotating groove 22, and the installation groove frame 207 plays a role in limiting the rotating shaft 21.
The bracket 17 is integrally connected with one end of the piston sleeve 4 far away from the trigger 1, a reinforcing plate is arranged between the liquid spray pipe 202 and the piston sleeve 4, reinforcing wings 209 are formed on two sides of the liquid spray pipe 202, and a second socket 210 for mounting a shell 219 is arranged on the edge of each reinforcing wing 209. The reinforcing wings 209 are provided to ensure the strength of the liquid ejecting pipe 202, to ensure that it is not damaged, and to facilitate the installation of the housing 219.
The end of the liquid spraying pipe 202 far away from the trigger 1 is provided with a vent pipe 211, and the vent pipe 211 is arranged for the purpose that since the whole liquid spraying channel 301 is L-shaped, the L-shaped channel cannot be directly processed when the liquid spraying channel 301 is processed, so that the vertical part of the liquid spraying channel 301 is drilled down from the vent pipe 211, and the exposed port of the vent pipe 211 is sealed after the processing is finished. It is apparent that the vent tube 211 communicates with the inside of the spray tube 202, and the vent tube 211 is disposed perpendicular to the spray tube 202. This mount pad 2 provides a neotype spring mounting structure, and concrete spring mounting structure explains in embodiment 2, and base 200 is including the spacing seat 5 that is used for installing spring part 3, and spacing seat 5 is used for being the semicircular face with the face of 3 assembly of spring part, and the downside of spacing seat 5 is used for installing the lid, and during installation spring part 3, spring part 3 sits and establishes on the lid, and spring part 3 is established with spacing 5 card, and spring part 3 supports trigger 1 simultaneously.
Curved surface guard plates 212 are formed on two sides of the piston sleeve 4, the lower ends of the curved surface guard plates 212 are integrally formed with the base 200, the upper sides of the curved surface guard plates 212 are integrally formed with the second baffle plate 203, vertical plates 213 extend from the outer sides of the two curved surface guard plates 212, and an extension frame is integrally formed on the rear side of the piston sleeve 4. The curved guard plate 212 can protect the piston sleeve 4 on the inner side, and the curved guard plate 212 can enable the appearance of the spray gun head to be more attractive and smooth.
The embodiment provides a spray gun head, which comprises the mounting seat 2 and a shell 219 sleeved outside the mounting seat, wherein a buckle 214 is arranged inside the shell 219, the width of the buckle 214 is the same as that of the second socket 210, a plug is integrally formed inside the shell 219 and comprises a sealing sleeve 218 and a sealing plug 217 arranged in the sealing sleeve 218, a latch 215 is arranged on the inner side of the lower end of the buckle 214, the buckle 214 is inserted into the second socket 210, and the latch 215 is buckled on the lower end face of the reinforcing wing 209; the sealing plug 217 is inserted at the end of the vent pipe 211, and the sealing sleeve 218 is arranged outside the vent pipe 211 in a sealing manner; the bracket 17, the piston sleeve 4 and the base 200 are covered on the inner side of the shell 219, and the spring element 3 and the trigger 1 are also included, the trigger 1 passes through the second slot 205 and is arranged in the rotary slot, and the trigger 1 can rotate around the rotary slot; the lower extreme of spring part 3 is contradicted on the lid, spring part 3 and spacing seat joint, and the other end of spring part 3 is contradicted with trigger 1.
The structure of the trigger 1 is explained below, as mentioned above, the spray gun head includes the trigger 1, the mount pad 2, the piston 100 and the spring part 3 with elastic resilience, the trigger 1 is hinged with the mount pad 2 and can rotate around the mount pad 2, the mount pad 2 includes the piston sleeve 4, the lower side of the piston sleeve 4 is formed with the limiting seat 5, the lower end of the spring part 3 is supported on the limiting seat 5, the other end of the spring part 3 is supported on the trigger 1, the spring part 3 is compressed to accumulate elastic potential energy in the process of applying external force to rotate the trigger 1. When the spring part spraying device is used, the trigger 1 is pulled, the piston 100 is extruded inwards by the trigger 1, water in the storage cavity is extruded to the spraying head part to spray water, the spring part 3 is in a compression state in the process, and when external force is removed, the trigger 1 is restored to an initial position under the action of the spring part 3.
In the embodiment, a trigger 1 is hinged with a mounting seat 2, a piston 100 is hermetically inserted in a piston sleeve 4, one end of the piston 100, which is close to the trigger 1, is provided with a connector 101, and the connector 101 is connected with the inner side of the trigger 1; the connector 101 comprises an insert column 102 with a horizontal end, the left end face and the right end face of the insert column 102 are both provided with inclined planes, the axial size of the insert column 102 in the direction close to the trigger 1 is gradually reduced, the insert column 102 and the piston 100 are fixedly connected through a connecting rib 103, the connecting rib 103 is fixedly connected at the middle position of the insert column 102, the inner side of the trigger 1 is provided with a first notch 104 used for being assembled with the insert column 102, and the first notch 104 comprises a first inlet 105 used for inserting the insert column 102; the dimension of the first inlet 105 along the axial direction of the plug 102 is larger than or equal to the minimum dimension of the plug 102 in the axial direction and smaller than the maximum dimension of the plug 102 in the axial direction, and the width of the first notch 104 is the same as the radial dimension of the plug 102. Thereby ensuring a more reliable and precise fit of the post 102 with the first notch 104.
In this embodiment, inward flanges 106 are formed on two sides of the trigger 1, two side walls of the first notch 104 are first clamping plates 107, a gap exists between the first clamping plates 107 and the flanges 106, and the first clamping plates 107 are plates with elastic deformation capability, so that in the process of installing the inserting column 102, the first clamping plates can deform and expand towards two sides, thereby facilitating the insertion of the inserting column 102.
The mounting seat 2 comprises a piston sleeve 4, a limiting seat 5 is formed on the lower side of the piston sleeve 4, the spring part 3 comprises a limiting snap ring 6 at the bottom, a limiting bayonet 7 matched with the shape of the outer side surface of the limiting seat 5 is formed on the limiting snap ring 6, the limiting bayonet 7 is clamped on the outer side surface of the limiting seat 5, and the direction of the limiting bayonet 7 is far away from the trigger 1; a return frame 8 is integrally formed on the limiting snap ring 6, and the return frame 8 is positioned at two sides of the piston sleeve 4; the return frame 8 is abutted against the inner side of the trigger 1; in the pressing process of the trigger 1, the trigger 1 acts on the return frame 8, the return frame 8 deforms to accumulate elastic potential energy, and after the external force is withdrawn, the return frame 8 releases the elastic potential energy to enable the trigger 1 to return. The mounting seat 2 comprises a cover body 10 and a spray head body 11 which are used for being connected with a kettle body, a limiting seat 5 and a piston sleeve 4 are integrally formed on the spray head body 11, the upper end face of the cover body 10 is lower than the upper end face of the limiting seat 5, so that the upper end face of the cover body 10 and the upper end face of the limiting seat 5 form a stepped surface, and a limiting snap ring 6 is arranged on the upper end face of the cover body 10 in a seated mode and clamped with the limiting seat 5. Wherein the liquid spraying pipeline is arranged on the nozzle body 11, and the cover body 10 is connected with the bottle body through screw thread fit during installation.
In this embodiment, the limiting seat 5 is disposed at the middle position of the upper end surface of the cover 10, and the piston sleeve 4 is located right above the limiting seat 5, so that the structure is more compact. In order to guarantee the area of contact of spring part 3 and shower nozzle body 11, guarantee that spacing snap ring 6 contradicts reliably with spacing seat 5, the both sides of spacing bayonet socket 7 extend in this embodiment has reinforcing plate 9, and reinforcing plate 9 contradicts on the face of extending of spacing seat 5 side both sides. In addition, in the embodiment, the force returning frames 8 are arranged on two sides of the piston sleeve 4, so that the space is saved, and the whole structure is more compact.
In this embodiment, the limiting seat 5 is a cylindrical member with a semicircular cross section, the side surface of the limiting seat 5 forms an arc-shaped surface, and the connecting surfaces at the two ends of the arc-shaped surface are planes.
To facilitate understanding of the structure of the return frame 8, a specific structure of the return frame 8 will be described below.
Because the force returning frame 8 plays a role in accumulating elastic potential energy, the force returning frame 8 has elastic restoring capacity and plays the same function as a return spring of a traditional spray gun head. In order to fully utilize the space, the return frame 8 of the embodiment is composed of a first elastic frame 12 and a second elastic frame 13 which are symmetrically arranged at two sides of the piston sleeve 4, the first elastic frame 12 and the second elastic frame 13 have the same structure, the first elastic frame 12 comprises a vertical section 14 and a support section 15 which is bent to form a horizontal shape, the inner side of the trigger 1 is provided with clamping grooves 16 which are in one-to-one correspondence with the first elastic frame 12 and the second elastic frame 13, and the end of the support section 15 is abutted against the clamping grooves 16. During the process of pulling the trigger 1, the end of the supporting section 15 is abutted against the upper side wall of the clamping groove 16.
Trigger 1 include with point direct contact's withhold the face, withhold the both sides of face and form turn-ups 106, withhold the inboard shaping of face and have two first cardboard 107, two first cardboard 107 form the spacing groove with turn-ups 106 respectively, the spacing inslot is provided with first limiting plate 109, the both sides of first limiting plate 109 are connected with turn-ups 106 and baffle respectively, spacing groove and limiting plate form draw-in groove 16, the end of support section 15 is pegged graft in draw-in groove 16, conflict the downside at the limiting plate under the effect of self elasticity, make trigger 1 be in the initial position.
The mounting seat 2 further comprises a bracket 17 used for being connected with the trigger 1, the bracket 17 is positioned on the upper side of the piston sleeve 4, the trigger 1 comprises a first rotating arm 19 and a second rotating arm 20, the bracket 17 is provided with rotating grooves 22 corresponding to the first rotating arm 19 and the second rotating arm 20 one by one, and the two rotating grooves 22 are positioned on the same axis; the first rotating arm 19 and the second rotating arm 20 are both provided with a rotating shaft 21, the rotating shaft 21 is clamped in a rotating groove 22, and the trigger 1 rotates around the rotating groove 22 through the first rotating arm 19 and the second rotating arm 20.
In use, the trigger 1 is pulled, the trigger 1 rotates around the rotary groove 22 through the first rotary arm 19 and the second rotary arm 20, and then the trigger 1 pushes the piston 100 to move, so that the liquid in the piston cavity 302 is extruded to the nozzle 300 through the first mounting port 303 to spray water. Simultaneously trigger 1 pushes down support section 15, and return force frame 8 carries out the collection of elastic energy, and after pressing trigger 1 and accomplishing, remove external force, return force frame 8 in the in-process that resumes initial state, promote trigger 1 and rotate the return around rotary slot 22, pull back the piston to initial position when trigger 1 rotates the return, the vacuum in the in-process piston cavity 302 is with liquid suction to the piston cavity 302 in. Wherein the plunger 102 and the first slot 104 are in clearance fit in order to ensure that the trigger 1 can rotate about the plunger 102.
Example 2
As shown in fig. 1 to 5, the present embodiment is different from embodiment 1 in that: the limit snap ring 6 is fixedly connected with the cover body 10 or the limit seat 5.
Example 3
This embodiment is different from embodiment 2 in that: the limiting snap ring 6 is fixedly connected with the cover body 10 or the limiting seat 5 through glue. The connecting rib 103 is a reinforcing member 108 formed by integrally forming four congruent right-angle trapezoidal plates, and the radial dimension of the connecting rib 103 in the direction of the trigger 1 is gradually reduced.
Example 4
The difference between the present embodiment and embodiment 1 is that a first insertion hole 110 is formed at the left and right ends in the first slot 104, and a first vent hole 111 communicated with the first insertion hole 110 is formed on the outer side surface of the trigger 1. The first jack 110 can limit the plug 102, and the first vent hole 111 can facilitate the air in the first slot 104 to be discharged when the plug 102 is installed.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (8)
1. External spring type spray gun head with two check valve structures, its characterized in that: comprises a mounting seat (2), and a trigger (1), a spring piece (3), a piston (100), a nozzle (300) and a cover body (10) which are arranged on the mounting seat (2); the spring piece (3) is a metal piece, the mounting seat (2) is a plastic piece or a metal piece, the inner side surface of the cover body (10) is provided with internal threads for being fixedly connected with the bottle body, the piston (100) is a rubber piece, and the piston (100) comprises two sealing lips (401) which are coaxially arranged;
the mounting seat (2) comprises a piston sleeve (4) for mounting the piston (100); the piston (100) is hermetically arranged in the piston sleeve (4), the trigger (1) is arranged on the mounting seat (2) and can rotate around the mounting seat (2), one end of the piston (100) is connected with the trigger (1), the trigger (1) drives the piston (100) to reciprocate, one end of the spring piece (3) is arranged on the mounting seat (2) and the cover body (10), and the other end of the spring piece (3) is arranged on the trigger (1) and is used for collecting elastic potential energy to enable the trigger (1) and the piston (100) to automatically return;
a liquid spraying channel (301) is arranged in the mounting seat (2), a piston cavity (302) is formed in the piston sleeve (4), the piston cavity (302) is communicated with the liquid spraying channel (301), a one-way valve seat (312) is mounted on the bottom surface of the piston cavity (302), a first mounting port (303) and a second mounting port (304) are arranged on the one-way valve seat (312), the first mounting port (303) is communicated with the liquid spraying channel (301), the second mounting port (304) is used for being communicated with a bottle body, a one-way valve sleeve (305) is mounted on the one-way valve seat (312), the one-way valve sleeve (305) comprises a valve body (306), a first sealing bowl cover (307) is integrally formed on the upper side of the valve body (306), the first sealing bowl cover (307) is in a horn shape with an opening facing to a side far away from the trigger (1), the maximum caliber of the first sealing bowl cover (307) is larger than or equal to the inner diameter of the first mounting port (303), and the minimum outer diameter of the first sealing bowl cover (307) is smaller than the inner diameter of the first mounting port (303), the outer side face of the opening of the first sealing bowl cover (307) is sealed with the inner side face of the first mounting opening (303), a first limiting column (308) is arranged in the first sealing bowl cover (307), a second limiting column (309) is arranged in the first mounting opening (303), and the first limiting column (308) and the second limiting column (309) are arranged coaxially;
a sealing ball bowl (310) is arranged on the lower side of the valve body (306), one end, far away from the trigger (1), of the sealing ball bowl (310) is a hemispherical bowl, the section of a second mounting port (304) is a circular hole, a chamfer or a fillet is arranged on the opening edge of the second mounting port (304), the maximum diameter of the hemispherical bowl is larger than the maximum outer diameter of the second mounting port (304), the second mounting port (304) and the hemispherical bowl are coaxially arranged, connecting strips (311) are connected to two sides of the sealing ball bowl (310), and the sealing ball bowl (310) is suspended by the two connecting strips (311) to be not in contact with the one-way valve seat (312); the connecting strip (311) is made of elastic rubber material;
the trigger (1) is pushed, the trigger (1) rotates around the mounting seat (2) and meanwhile pushes the piston (100) to move along the piston cavity (302), water in the piston cavity (302) extrudes the edge of the first sealing bowl cover (307), and the water is extruded to the first mounting opening (303) and is sprayed out from the nozzle (300) along the liquid spraying channel (301); the trigger (1) automatically returns under the action of the spring piece (3) when the external force is removed, the first sealing bowl cover (307) is sealed with the first mounting hole (303) in the automatic returning process, the first sealing bowl cover (307) is adsorbed and separated from the second mounting hole (304) under the action of vacuum, and water in the container is sucked into the piston cavity (302); one end of the piston (100) close to the trigger (1) is provided with a connector (101), and the connector (101) is connected with the inner side of the trigger (1); the connecting head (101) comprises an inserting column (102) with the end part in a horizontal state, inclined planes are arranged on the left end face and the right end face of the inserting column (102), the inserting column (102) is gradually reduced along the axial dimension in the direction close to the trigger (1), the inserting column (102) and the piston (100) are fixedly connected through a connecting rib (103), the connecting rib (103) is fixedly connected to the middle position of the inserting column (102), a first notch (104) used for being assembled with the inserting column (102) is formed in the inner side of the trigger (1), and the first notch (104) comprises a first inlet (105) used for inserting the inserting column (102); the dimension of the first inlet (105) along the axial direction of the inserted column (102) is larger than or equal to the minimum dimension of the inserted column (102) in the axial direction and smaller than the maximum dimension of the inserted column (102) in the axial direction, and the width of the first notch (104) is the same as the radial dimension of the inserted column (102).
2. The externally-mounted spring type spray gun head with the double one-way valve structure according to claim 1, characterized in that: the mounting seat (2) comprises a base (200) for mounting a cover body, a spray head part (201) for mounting a nozzle and a bracket (17) for mounting a trigger (1) and a shell (219); the support (17) is arranged on the upper side of the piston sleeve (4), the spray head part (201) is arranged at the end part of the support (17), a spray pipe (202) for spraying liquid is arranged in the support (17), the support (17) comprises second baffle plates (203) on the left side and the right side, and an assembly area for assembling the trigger (1) is formed in the area between the second baffle plates (203) close to one end of the spray head part (201); the liquid spraying pipe (202) is located between the second baffle plates (203), a second slot (205) is formed between two side faces of the liquid spraying pipe (202) located in the assembly area and the second baffle plates (203) on two sides, bottom plates (206) extend from two sides of the liquid spraying pipe (202), an installation slot frame (207) is formed on each bottom plate (206), a rotary slot (22) used for containing a rotary shaft of the trigger (1) is formed in each installation slot frame (207), and the rotary slot (22) and the second slot (205) are of a communicating structure; the support (17) and the piston sleeve (4) are connected in an integrated forming mode at one end far away from the trigger (1), a reinforcing plate is arranged between the liquid spraying pipe (202) and the piston sleeve (4), reinforcing wings (209) are formed on two sides of the liquid spraying pipe (202), and second sockets (210) used for installing the shell (219) are formed in the edge portions of the reinforcing wings (209).
3. The externally-mounted spring type spray gun head with the double one-way valve structure according to claim 2, characterized in that: an air pipe (211) is arranged at one end of the liquid spraying pipe (202) far away from the trigger (1), the air pipe (211) is communicated with the interior of the liquid spraying pipe (202), and the air pipe (211) is arranged vertical to the liquid spraying pipe (202); the base (200) comprises a limiting seat (5) for installing the spring piece (3), and the surface of the limiting seat (5) for assembling with the spring piece (3) is a semi-annular surface.
4. The externally-mounted spring type spray gun head with the double one-way valve structure according to claim 3, characterized in that: curved surface guard plates (212) are formed on two sides of the piston sleeve (4), the lower ends of the curved surface guard plates (212) are integrally formed with the base (200), the upper sides of the curved surface guard plates (212) are integrally formed with the second baffle plate (203), vertical plates (213) extend from the outer sides of the two curved surface guard plates (212), and an extension frame is integrally formed on the rear side of the piston sleeve (4); the spray gun head further comprises a shell (219) sleeved outside the mounting seat, a buckle (214) is arranged inside the shell (219), the width of the buckle (214) is the same as that of the second socket (210), a plug is further integrally formed inside the shell (219), the plug comprises a sealing sleeve (218) and a sealing plug (217) arranged in the sealing sleeve (218), a latch (215) is arranged on the inner side of the lower end of the buckle (214), the buckle (214) is inserted into the second socket (210), and the latch (215) is buckled on the lower end face of the reinforcing wing (209); the sealing plug (217) is inserted at the end of the vent pipe (211), and the sealing sleeve (218) is sleeved outside the vent pipe (211) in a sealing manner; the support (17), the piston sleeve (4) and the base (200) are coated on the inner side of the shell (219).
5. The externally-mounted spring type spray gun head with the double one-way valve structure according to claim 4, characterized in that: the spring piece (3) and the trigger (1) are further included, the trigger (1) penetrates through the second slot (205) and is installed in the rotating groove (22), and the trigger (1) can rotate around the rotating groove; the lower extreme of spring part (3) is contradicted on the lid, spring part (3) and spacing seat joint, and the other end and trigger (1) of spring part (3) are contradicted.
6. The externally-mounted spring type spray gun head with the double one-way valve structure according to claim 1, characterized in that: the spring part (3) comprises a limiting snap ring (6) at the bottom, a limiting bayonet (7) matched with the shape of the outer side surface of the limiting seat (5) is formed on the limiting snap ring (6), the limiting bayonet (7) is clamped on the outer side surface of the limiting seat (5), and the direction of the limiting bayonet (7) is the direction far away from the trigger (1); a return frame (8) is integrally formed on the limiting snap ring (6), and the return frame (8) is positioned on two sides of the piston sleeve (4); the return frame (8) is propped against the inner side of the trigger (1); in the pressing process of the trigger (1), the trigger (1) acts on the force returning frame (8) to deform and accumulate elastic potential energy, and after the external force is withdrawn, the force returning frame (8) releases the elastic potential energy to return the trigger (1); reinforcing plates (9) extend from two sides of the limiting bayonet (7), and the reinforcing plates (9) abut against the extending surfaces on two sides of the side surface of the limiting seat (5).
7. The externally-mounted spring type spray gun head with the double one-way valve structure according to claim 6, characterized in that: the return frame (8) comprises first elastic frame (12) and second elastic frame (13) that the symmetry set up in piston sleeve pipe (4) both sides, the structure of first elastic frame (12) and second elastic frame (13) is the same, first elastic frame (12) including vertical section (14) and bending type roughly be horizontally support section (15), clearance between turn-ups (106) and first cardboard (107) form with first elastic frame (12), draw-in groove (16) of second elastic frame (13) one-to-one, the end of support section (15) is contradicted in draw-in groove (16).
8. The externally-mounted spring type spray gun head with the double one-way valve structure according to claim 6, characterized in that: the mounting seat (2) comprises a cover body (10) and a spray head body (11), the cover body is connected with the kettle body, a limiting seat (5) and a piston sleeve (4) are integrally formed on the spray head body (11), the upper end face of the cover body (10) is lower than the upper end face of the limiting seat (5), and a limiting clamping ring (6) is arranged on the upper end face of the cover body (10) in a seated mode and clamped with the limiting seat (5).
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| CN202010362820.0A CN111558478B (en) | 2020-04-30 | 2020-04-30 | External spring type spray gun head with double one-way valve structure |
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| CN202010362820.0A CN111558478B (en) | 2020-04-30 | 2020-04-30 | External spring type spray gun head with double one-way valve structure |
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| CN111558478B true CN111558478B (en) | 2021-09-10 |
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| CN112998035A (en) * | 2021-03-04 | 2021-06-22 | 涡阳县华腾日用化学品有限公司 | Household disinfectant and preparation method thereof |
| CN113581642B (en) * | 2021-08-19 | 2023-04-07 | 余姚市奥洪塑业有限公司 | Full plastic miniature spray gun |
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