CN215612498U

CN215612498U - Spraying device

Info

Publication number: CN215612498U
Application number: CN202121838829.0U
Authority: CN
Inventors: 黄骏儒
Original assignee: Zhongshan Yongli Plastic Products Co ltd
Current assignee: Zhongshan Yongli Plastic Products Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-01-25
Anticipated expiration: 2031-08-06

Abstract

The utility model relates to the field of spraying devices, in particular to a spraying device with high stability and low failure rate.A starting and closing valve of the spraying device comprises a body, a limiting column and an elastic starting and closing ring, wherein a rhombic elastic piece is arranged at the bottom of the limiting column, and a check valve is arranged at the tail end of the rhombic elastic piece; the limiting column of the opening and closing valve is inserted into the discharge port, so that the opening and closing ring covers the discharge port in an interference manner; the check valve withstands the inlet by the spring action of rhombus elastic component, be equipped with the spacing groove that supplies the check valve to sink into the laminating on the edge of inlet, this scheme has optimized the effect of opening and close of on-off valve, has prolonged the life of on-off valve, has reduced the fault rate.

Description

Spraying device

Technical Field

The utility model relates to the field of spraying devices, in particular to a spraying device with high stability and low failure rate.

Background

The prior art spraying device is generally a device which pumps and sprays the liquid stored in a container by the repeated action of a trigger driving a piston and a valve; although the shell of the valve is partially an integrally formed injection molding part, in order to ensure the efficiency of liquid suction or extrusion, parts such as a metal plate and the like for opening and closing the pipeline are often required to be additionally arranged in a circulating pipeline of the shell, the opening and closing effect of the valve and the valve cavity in the mode is poor, the effect of liquid suction under pressure is poor, the liquid is easy to flow back, the sprayed pressure is insufficient, the spraying effect is poor, meanwhile, the parts such as the metal plate and the like have high cost, and the failure rate is high in the whole installation and use process; the check valve that plays the effect of opening and close in the circulation pipeline can connect elastic construction and open and close work, and when using atomizer, violently draw the trigger, draw the trigger at the excessive speed or draw the trigger for a long time and all make current elastic construction take place permanent deformation easily for elastic construction can't effectually let the check valve block up the inlet, thereby arouse phenomenons such as backward flow, spun pressure are not enough.

Disclosure of Invention

In order to solve the defects of the prior art, the utility model provides the spraying device, which optimizes the opening and closing effect of the opening and closing valve, prolongs the service life of the opening and closing valve, reduces the failure rate, reduces the parts of the device, reduces the difficulty of installation and production of the device and simplifies the flow and the working procedure of installation by improving the structures of the opening and closing valve and the shell.

The technical scheme adopted by the utility model is as follows: a spraying device comprises a shell, wherein the shell is provided with a liquid inlet cavity for sucking liquid, and the liquid inlet cavity is provided with a discharge port and a liquid inlet; the shell also comprises a pump room, and a communicating hole is formed between the pump room and the liquid inlet cavity; the device also comprises an opening and closing valve which is arranged in the shell and is used for selectively cutting off the flowing direction of the liquid, wherein the opening and closing valve comprises a body, a limiting column and an elastic opening and closing ring, the limiting column is positioned at the bottom of the body, and the opening and closing ring is encircled on the column wall of the limiting column; the bottom of the limiting column is provided with a rhombic elastic piece, and the tail end of the rhombic elastic piece is provided with a check valve; the limiting column of the opening and closing valve is inserted into the discharge port, so that the opening and closing ring covers the discharge port in an interference manner; the check valve withstands the inlet by the elastic force of rhombus elastic component, be equipped with the spacing groove that supplies the check valve to sink into the laminating on the edge of inlet.

When the liquid inlet cavity is vacuumized to suck liquid, the opening and closing ring tightly covers the liquid inlet under the action of the internal and external pressure difference, the check valve overcomes the elasticity of the diamond elastic part to separate from the liquid inlet under the action of the internal and external pressure difference, and the liquid in the bottle flows into the liquid inlet cavity; when the liquid inlet cavity is pressurized to discharge liquid, the check valve is pressed against the liquid inlet under the action of the diamond elastic piece, and the opening and closing ring is pressed to be opened outwards, so that the discharge port is opened to discharge liquid.

The rhombic elastic piece is at least provided with a group of corresponding break angles from the limiting column end to the check valve end, the rhombic elastic piece is divided into an upper deformation position and a lower deformation position by taking the break angles as boundary points, and the deformation degree of each part is dispersed and reduced when the rhombic elastic piece contracts, so that the rhombic elastic piece is not easy to generate permanent deformation in the long-term use process, the rhombic elastic piece keeps enough elasticity, and the service life is prolonged; the spacing groove on the inlet edge makes the check valve spacing wherein, at the pressure liquid spun in-process, reduce the impact of liquid to the check valve, effectively prevent the check valve from breaking away from the inlet, thereby prevent that the liquid in the feed liquor intracavity from flowing back to the bottle from the inlet when the pressurization, the effect of opening and close of on-off valve has been optimized, simultaneously because the stability of check valve position is higher, so the elasticity requirement to rhombus elastic component is also lower relatively, so that the check valve does not receive too excessive extrusion under the state of supporting the inlet, and then can ensure rhombus elastic component elastic deformation space of wider scope when imbibition extrusion shrinkage, be difficult for triggering permanent deformation, the further life that has assisted mutually has been prolonged, the fault rate has been reduced.

The body and the setting of spacing post for as long as during the installation according to the guide of spacing post, will with the integrative rhombus elastic component of spacing post, check valve insert the casing can, press the body at last, accomplish the installation with the body card income casing, whole journey need not to aim at the position of check valve and the inside inlet of casing, also need not to adjust the position of opening closed loop and discharge port, simple to operate is convenient.

The spraying device is characterized in that a liquid inlet pipe and a discharge pipe are arranged in the shell, the liquid inlet pipe is communicated with a liquid inlet of the liquid inlet cavity, and the discharge pipe is communicated with a discharge port of the liquid inlet cavity.

The on-off valve is an injection molding piece which is integrally formed, and the check valve is hemispherical.

Preferably, the spraying device further comprises a trigger movably buckled on the shell; the trigger is movably connected with a piston; the piston is embedded in the pump room; so that the piston can slide back and forth in the pump room under the driving of the trigger.

The spraying device further comprises a nozzle for atomizing and spraying the liquid, and the nozzle is arranged at one end of the discharge pipe.

The spraying device further comprises a top cover, a fixed groove is formed in the top end of the inside of the top cover, and a top cover clamping joint corresponding to the fixed groove is formed in the shell; the side walls of two sides in the top cover are respectively provided with two clamping grooves A and two clamping grooves B, the side wall of the shell is provided with a clamping strip A and a clamping strip B, and the clamping strip A and the clamping strip B respectively correspond to the clamping grooves A and the clamping grooves B; the top cover clamping head, the clamping strip A and the clamping strip B are respectively connected with the shell in a clamping manner by sliding into the fixed groove, the clamping groove A and the clamping groove B; two buckles are arranged below the inner part of the top cover, two clamping ports are arranged on the shell corresponding to the buckles, and the buckles and the clamping ports are clamped for fixing and limiting; thereby the dismouting is convenient again under the circumstances of guaranteeing top cap and casing stability of being connected to the inside part of maintenance, replacement, washing casing.

More preferably a spraying device, the device further comprising a cap for attachment to a container containing a liquid; the top shell is provided with a top shell body, the top shell body is provided with a top cover, and the top cover is provided with a top cover connecting ring.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that: the opening and closing effect of the opening and closing valve is optimized, the service life of the opening and closing valve is prolonged, the failure rate is reduced, meanwhile, parts of the device are reduced, the difficulty of installation and production of the device is reduced, the installation flow and procedures are simplified, and follow-up maintenance, replacement and cleaning are facilitated.

Drawings

The following is a description of the various figures of the utility model:

FIG. 1 is an overall assembly effect diagram of the present invention;

FIG. 2 is an overall cross-sectional view of the present invention;

FIG. 3 is a schematic diagram of the operation of the valve for sucking liquid by vacuum;

FIG. 4 is a schematic view showing the operation of the valve for pressurizing and discharging a liquid;

FIG. 5 is an overall configuration view of the opening/closing valve;

FIG. 6 is a schematic view of the top cover removed;

FIG. 7 is a schematic view of the top cover removed;

fig. 8 is a schematic view of the bottom of the cap.

The numbers in the figures indicate:

1-nozzle, 2-shell, 21-open-close valve installation part, 22-liquid inlet pipe, 221-liquid inlet, 23-liquid inlet cavity, 24-communication hole, 25-discharge hole, 26-pump room, 27-discharge pipe, 271-extrusion hole, 28-top cover clamping joint, 281-top cover fixing ring, 282-cap connecting ring, 283-clamping joint, 284-clamping strip A, 285-clamping strip B, 3-open-close valve, 31-body, 32-bulge fixing part, 33-open-close ring, 34-limit column, 35-diamond elastic piece, 36-check valve, 4-piston, 5-top cover, 51-fixing groove, 52-clamping groove A, 53-clamping groove B, 54-clamping buckle, 55-fixing support, 6-trigger, 7-elastic reset piece, 8-cap and 81-shell mounting hole.

The specific implementation mode is as follows:

the utility model will now be described in detail with reference to the accompanying drawings:

as shown in fig. 1 to 8, the present invention provides a spraying apparatus comprising an integrally formed housing 2 having a pipe for sucking and discharging a liquid therein, a cap 5 detachably assembled with the housing 2 for covering and protecting the internal components, a cap 8 for connecting to a container for containing a liquid, and a trigger 6 connected to the housing 2 in a movable snap-fit manner; a piston 4 for pumping or squeezing, one end of the piston 4 is movably connected to the trigger 6, so that the trigger 6 drives the piston 4 to horizontally slide in the housing 2 when moving back and forth under the influence of external force; the device also comprises an opening and closing valve 3 for selectively cutting off the flowing direction of the liquid in the shell 2, and the opening and closing valve 3 is matched and linked with the piston 4.

As shown in fig. 1 and 2, the housing 2 is an integrally molded injection molding, a discharge pipe 27 for discharging liquid is disposed in the housing, a spray nozzle 1 capable of forming mist when the liquid is sprayed is connected to an outlet of the discharge pipe 27, a liquid inlet chamber 23 is connected to one end of the discharge pipe 27, a discharge port 25 is disposed in the liquid inlet chamber 23, the discharge pipe 27 is connected to the liquid inlet chamber 23 through the discharge port 25, and an extrusion port 271 for discharging the liquid is disposed between the discharge pipe 27 and the liquid inlet chamber 23; in addition, a liquid inlet pipe 22 for liquid to enter is further provided inside the housing 2, one end of the liquid inlet pipe 22 is connected with the liquid inlet cavity 23, a liquid inlet 221 is further provided in the liquid inlet cavity 23, the liquid inlet pipe 22 is connected with the liquid inlet cavity 23 through the liquid inlet 221, the discharge pipe 27 and the liquid inlet pipe 22 are arranged at a right angle with the liquid inlet cavity 23 as a reference, in addition, the housing 2 is further provided with a pump room 26, and a communication hole 24 communicated with the pump room 26 is provided on the side wall of the liquid inlet cavity 23.

The top end of the trigger 6 is provided with a hook frame which is movably buckled with a fixed shaft correspondingly arranged on the shell 2, so that the trigger 6 can move back and forth, the inner side of the trigger 6 is provided with a clamping port, one end of the piston 4 is provided with a connecting rod, and the connecting rod is movably buckled with the clamping port of the trigger 6; the other end of the piston 4 is provided with a piston head with a sealing piece, the piston head of the piston 4 is inserted into the pump room 26, the sealing piece enables the piston 4 and the pump room 26 to be tightly sealed together, and therefore the piston 4 can slide back and forth horizontally in the pump room 26 under the driving of the trigger 6.

As shown in fig. 6-8, the device further comprises an elastic reset piece 7 arranged between the trigger 6 and the housing 2, when the trigger 6 drives the piston 4 by external force, the elastic reset piece 7 is distorted, and when the external force is released, the elastic reset piece 7 is affected by elastic inertia to restore to the original shape, so as to drive the trigger 6 and the piston 4 to restore to the original position.

As shown in fig. 2-5, the casing 2 is provided with an opening and closing valve mounting portion 21 for mounting the opening and closing valve 3, which is located above the liquid inlet chamber 23, and a groove for fixing the opening and closing valve 3 is formed in the opening and closing valve mounting portion 21; the open-close valve 3 is an integrally molded injection molding piece and comprises a body 31, wherein a convex fixing part 32 is arranged on the side wall of the body 31, and the convex fixing part 32 is matched with a groove formed in the open-close valve mounting part 21 so as to fix the open-close valve 3; the bottom of the body 31 is provided with a limit column 34, an elastic disc-shaped open-close ring 33 is formed around the column wall of the limit column 34, the bottom of the limit column 34 is provided with a diamond-shaped elastic member 35, the tail end of the diamond-shaped elastic member 35 is provided with a check valve 36, the edge of the liquid inlet 221 is further provided with a limit groove for the check valve 36 to be stuck in, the check valve 36 can be hemispherical, disc-shaped or inverted trapezoid, and the like, and the shape of the check valve 36 in the embodiment is preferably hemispherical.

When the opening and closing valve 3 is installed, the body 31 is pressed into the opening and closing installation part 21, the protrusion fixing part 32 is in interference fit with the groove on the shell 2, so that the opening and closing valve 3 is fixedly locked in the shell 2, because the diameter of the limiting ring 34 is smaller than that of the discharge port 25 and the diameter of the opening and closing ring 33 is larger than that of the discharge port 25 during design and manufacturing, after the opening and closing valve 3 is installed and fixed, the limiting column 34 is inserted into the discharge port 25, the opening and closing ring 33 is just flatly covered on the discharge port 25, the connection between the discharge pipe 27 and the liquid inlet cavity 23 is sealed, the rhombic elastic piece 35 and the check valve 36 extend into the liquid inlet cavity 23, the hemispherical check valve 36 is just attached to the limiting groove of the liquid inlet 221, and the connection between the liquid inlet cavity 23 and the liquid inlet pipe 22 is sealed.

Furthermore, the spraying device shell 2 and the top cover 5 are also provided with mutually matched clamping parts which are detachably assembled together, so that the shell of the spraying device is formed; as shown in fig. 2, 6, 7 and 8, a fixing groove 51 is provided at the top end inside the top cover 5, and a top cover bayonet 28 corresponding to the fixing groove 51 is provided above the discharge pipe 27 near the nozzle 1; two clamping grooves A52 and B53 are respectively arranged on the side walls of two sides in the top cover 5, clamping strips A284 are arranged on the outer side wall of the discharge pipe 27 corresponding to the clamping grooves A52, clamping strips B285 are arranged on the outer side wall of the liquid inlet cavity 23 corresponding to the clamping grooves B53, and the top cover clamping joint 28, the clamping strips A284 and the clamping strips B285 are correspondingly slid into the fixing groove 51, the clamping grooves A52 and the clamping grooves B53 through sliding so as to be clamped and fixed; two buckles 54 are arranged at the lower part inside the top cover 5, two clamping interfaces 283 are arranged on the shell 2 corresponding to the buckles 54, and the buckles 54 and the clamping interfaces 283 are clamped for fixing and limiting; in addition, a fixing support 55 is arranged below the buckle 54, a top cover fixing ring 281 is arranged below the buckle interface 283, and the fixing support 55 is supported at the bottom of the top cover fixing ring 281 so as to clamp the top cover fixing ring 281; a cap connecting ring 282 is further arranged below the cap fixing ring 281 at intervals, and a housing mounting hole 81 is formed in the cap 8; the diameter of the cap connecting ring 282 is larger than that of the housing mounting hole 81 during design and manufacture, and the cap connecting ring 282 is made of plastic and has certain flexibility; the cap connection ring 282 is inserted into the cap 8 through the housing mounting hole 81 in an interference manner so as to be fixed in a matching manner, so that the situation that the spraying device falls off in the use process after the cap 8 is connected with the liquid container is prevented.

As shown in fig. 3, the spraying device of the present embodiment fills liquid when it is used for the first time as follows: the spraying device is fixedly connected with the liquid container through a cover cap 8, and one end of the liquid inlet pipe 22 is connected with an extension pipe and is placed in the liquid container; at the moment, the trigger 6 is driven by external force to drive the piston 4 to slide towards the direction of the communicating hole 24 in the pump room 26, and when the external force is relieved, the elastic resetting piece 7 drives the trigger 6 and the piston 4 to reset again under the influence of elastic inertia; during the resetting process, the piston 4 generates a suction force in the pump chamber 26, so that the opening ring 33 is pressed down tightly against the discharge opening 25; at this time, vacuum pressure is formed inside the pump room 26 and the liquid inlet cavity 23, the check valve 36 overcomes the elastic force of the diamond-shaped elastic part 35 to lift upwards under the influence of the suction force of the vacuum pressure, so that the diamond-shaped elastic part 35 contracts and deforms, and the check valve 36 is separated from the liquid inlet 221; the liquid in the container is sucked into the liquid inlet cavity 23 through the liquid inlet pipe 22 and simultaneously enters the pump room 26 through the communication hole 24; when the trigger 6 and the piston 4 are reset, the vacuum pressure disappears, the check valve 36 is pressed down by the elastic inertia of the diamond elastic piece 35 and sinks into the limit groove arranged on the edge of the liquid inlet 221 again, the connection between the liquid inlet 221 and the liquid inlet cavity 23 is cut off, the liquid is prevented from flowing back to the container, and the liquid is reserved between the pump room 26 and the liquid inlet cavity 23.

As shown in fig. 4, the operation of the spraying device of the present embodiment when spraying liquid is as follows: when the trigger 6 is driven by external force, the piston 4 is driven to slide towards the communication hole 24 in the pump room 26; during the sliding process, the liquid between the pump chamber 26 and the liquid inlet chamber 23 will be pressurized; since the check valve 36 is pressed against the liquid inlet 221 by the diamond-shaped elastic member 35, the liquid lifts the elastic disc-shaped open-close ring 33 upward under the influence of the applied pressure, and the liquid flows through the extrusion opening 271 via the discharge opening 25 into the discharge pipe 27, and finally passes through the atomizing member in the nozzle 1 to form atomized spray.

The opening and closing valve 3 is arranged to be an integrally formed injection molding part, and the opening and closing ring 33, the diamond-shaped elastic part 35 and the check valve 36 which are adopted by the opening and closing valve are mutually matched with the piston 4 in a front-back sliding manner, so that other parts do not need to be arranged in the liquid flowing through the shell 2, and the liquid can be sucked or extruded in the pump room 26 and the liquid inlet cavity 23 only by matching one opening and closing valve 3 with the piston 4, and the production cost and the manufacturing difficulty are reduced to the maximum extent; and casing 2 and top cap 5 are detachable joint formula structure, have also improved the stability after atomizer equipment has been assembled simultaneously when having simplified the assembling nature of product.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the present invention shall be covered thereby.

Claims

1. The spraying device is characterized by comprising a shell (2), wherein the shell (2) is provided with a liquid inlet cavity (23) for sucking liquid, and the liquid inlet cavity (23) is provided with a discharge port (25) and a liquid inlet (221); the shell (2) also comprises a pump room (26), and a communicating hole (24) is formed between the pump room (26) and the liquid inlet cavity (23); the device also comprises an opening and closing valve (3) which is arranged in the shell (2) and used for selectively cutting off the flowing direction of liquid, wherein the opening and closing valve (3) comprises a body (31), a limiting column (34) and an elastic opening and closing ring (33), the limiting column (34) is positioned at the bottom of the body (31), and the opening and closing ring (33) surrounds the column wall of the limiting column (34); the bottom of the limiting column (34) is provided with a diamond-shaped elastic piece (35), and the tail end of the diamond-shaped elastic piece (35) is provided with a check valve (36); the limiting column (34) of the opening and closing valve (3) is inserted into the discharge port (25), so that the opening and closing ring (33) covers the discharge port (25) in an interference mode, the check valve (36) is propped against the liquid inlet (221) under the elastic action of the diamond-shaped elastic piece (35), and a limiting groove for enabling the check valve (36) to be stuck in the joint is formed in the edge of the liquid inlet (221).

2. Spraying device according to claim 1, characterized in that a liquid inlet pipe (22) and a discharge pipe (27) are arranged in the housing (2), the liquid inlet pipe (22) is connected in series with a liquid inlet (221) of the liquid inlet chamber (23), and the discharge pipe (27) is connected in series with a discharge outlet (25) of the liquid inlet chamber (23).

3. Spraying device according to claim 1, characterized in that the on-off valve (3) is an integrally molded injection molded part and the check valve (36) is hemispherical in shape.

4. Spraying device according to claim 2, characterized in that the on-off valve (3) is an integrally molded injection molded part and the check valve (36) is hemispherical in shape.

5. Spraying device according to claim 1, characterized in that the device further comprises a trigger (6) movably fastened to the housing (2); the trigger (6) is movably connected with a piston (4); the piston (4) is embedded in the pump room (26); so that the piston (4) can slide back and forth in the pump room (26) under the driving of the trigger (6).

6. A spraying device according to claim 2, characterized in that the device further comprises a nozzle (1) for atomizing the liquid, said nozzle (1) being arranged at one end of the discharge pipe (27).

7. The spraying device according to any one of claims 1 to 6, characterized in that the device further comprises a top cover (5), a fixing groove (51) is arranged at the top end inside the top cover (5), and a top cover clamping joint (28) corresponding to the fixing groove (51) is arranged on the shell (2); two clamping grooves A (52) and two clamping grooves B (53) are respectively formed in the side walls of the two sides in the top cover (5), clamping strips A (284) and clamping strips B (285) are arranged on the side wall of the shell (2), and the clamping strips A (284) and the clamping strips B (285) correspond to the clamping grooves A (52) and the clamping grooves B (53) respectively; the top cover clamping head (28), the clamping strip A (284) and the clamping strip B (285) are respectively connected with the top cover (5) in a clamping manner by sliding into the fixing groove (51), the clamping groove A (52) and the clamping groove B (53); two buckles (54) are arranged below the inner part of the top cover (5), two clamping interfaces (283) are arranged on the shell (2) corresponding to the buckles (54), and the buckles (54) and the clamping interfaces (283) are fixed in a clamping manner and limited.

8. Spraying device according to claim 7, characterized in that the device further comprises a cap (8) for connecting a container for containing liquid, the cap (8) is provided with a housing mounting hole (81), a cap connecting ring (282) is arranged at the bottom of the housing (2), and the cap connecting ring (282) is inserted into the cap (8) in an interference manner through the housing mounting hole (81).