Pressure assembly and pressing type spraying device

Abstract

The utility model relates to a pressure assembly which comprises a pump body, a reset spring, a pressurizing core rod and a supporting ring. The utility model further discloses a pressing type spraying device which comprises a spray head, an inflation assembly, a pressure assembly, a guide pipe and a filtering assembly. The inflation assembly comprises an inflation pipe and an inflation cylinder arranged on the inflation pipe in a sleeving mode. The inflating pipe is a hollow cylindrical pipe body with an opening in one end, a connecting hole and a plurality of inflating holes are formed in the end, away from the opening, of the inflating pipe, the spray head is arranged above the connecting hole, the pressure assembly is arranged in the inflating pipe, and the upper end of the pressurizing core rod penetrates through the connecting hole to be connected with the spray head; one end of the guide pipe is fixedly connected with the bottom of the pump body, and the other end of the guide pipe is fixedly connected with the filtering assembly. The spraying device has the advantages of being simple in structure, low in operation difficulty, good in filtering effect, good in atomization effect and the like, the spraying device can be prevented from being blocked in the using process, and the application experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of atomized spraying technology, and in particular to a pressure component and a press-type spraying device. Background Technology

[0002] Spraying involves using a high-pressure system to eject liquid as very fine droplets. These droplets can be evenly dispersed in the air and suspended for a relatively long time. Spraying devices can be used in many fields, including agriculture, horticulture, sanitation, fire protection, and home use. The most common spraying device in daily life is the spray bottle, which has a press-button nozzle on the liquid container. Pressing the nozzle atomizes the liquid and sprays it out.

[0003] In an existing patent application (application number "201320487861.8"), a press-type atomizing device increases the pressure on the liquid inside the container by inflating it with an air-filling component before atomization. This improves atomization efficiency, reduces atomized particle size, and enhances atomization uniformity, achieving an ideal spraying effect. However, during use, it was found that the water output from the pressure component is unstable when applying pressure to the container, resulting in inconsistent droplet sizes. Furthermore, small sediments sometimes appear in the container. While these sediments do not affect the quality of the liquid product, they can clog the conduits or nozzles of the atomizing device when spraying, leading to low spray volume or even preventing the liquid from being sprayed at all. This significantly reduces the user experience and hinders the product's competitiveness. Utility Model Content

[0004] Therefore, it is necessary to provide a pressure component and a press-type spray device to solve the aforementioned problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A pressure assembly includes a pump body, a return spring, and a pressure mandrel. The two ends of the pump body are connected, and the pump body is provided with a spring mounting hole. The return spring is disposed in the spring mounting hole, and the height of the return spring is greater than the height of the spring mounting hole. The upper end of the return spring is provided with a mounting groove with an end opening. A snap-fit ​​ring is provided in the mounting groove. The upper end surface of the mounting groove is provided with an inclined surface that slopes from the outer side wall to the inner side wall. Multiple protrusions are provided on the inclined surface. The pressure mandrel is disposed in the mounting groove. The pressure mandrel is provided with a snap-fit ​​groove that matches the snap-fit ​​ring. The snap-fit ​​groove snaps with the snap-fit ​​ring. A sealing gasket is provided on the pressure mandrel. The pressure mandrel is provided with a water outlet hole connecting both sides of the pressure mandrel and a water outlet groove connecting the water outlet hole and the upper surface of the pressure mandrel. The water outlet hole is located below the sealing gasket and is at the same horizontal plane as the inclined surface.

[0006] In one embodiment, the upper outer side of the pump body is provided with a ventilating protrusion and a retaining ring from top to bottom, and the retaining ring is provided with multiple air inlets; the pump body is provided with multiple ribs, which are equally spaced on the outer side wall of the pump body, and the ribs are located below the retaining ring.

[0007] In one embodiment, the pump body is further provided with a support ring fitted onto the upper part of the pump body. The upper end of the support ring is provided with an extension extending toward the shaft core, and the lower end face of the extension is provided with a venting groove.

[0008] A press-type spray device includes: a nozzle, an inflation assembly, a conduit, a filter assembly, and a pressure assembly as described in any of the above embodiments;

[0009] The inflation assembly includes an inflation tube and an inflation cylinder fitted onto the inflation tube; the inflation tube is a hollow cylindrical tube, with one end open and the other end having a connection hole and multiple inflation holes; the nozzle is positioned above the connection hole; the pressure assembly is positioned inside the inflation tube, and the upper end of the pressure mandrel passes through the connection hole and is connected to the nozzle; one end of the conduit is fixedly connected to the bottom of the pump body, and the other end of the conduit is fixedly connected to the filter assembly.

[0010] In one embodiment, a support portion is provided on the inner wall of the inflation tube, and the support portion is engaged with a retaining ring on the pump body to fix the pump body inside the inflation tube.

[0011] In one embodiment, the diameter of the sealing gasket is equal to the diameter of the hollow portion of the inflation tube.

[0012] In one embodiment, the outer side of the inflation tube is provided with a hollow outer cylinder, one end of the outer cylinder is connected to the end of the inflation tube away from the connection hole, and the inner side wall of the outer cylinder and the outer side wall of the inflation tube form an inflation chamber with one end open.

[0013] In one embodiment, the outer cylinder has an outwardly flared annular mounting edge at the end near the inflation port, the annular mounting edge being used to mount the press-type spray device onto the container; a first gasket is provided below the annular mounting edge.

[0014] In one embodiment, the air cylinder is a hollow cylinder with one open end, the air cylinder is sleeved on the air tube and located in the air chamber; the open end of the air cylinder is provided with a sealing ring that protrudes outward, and the outer diameter of the sealing ring is equal to the inner diameter of the outer cylinder.

[0015] In one embodiment, the filter assembly includes a clamp and a filter screen; one end of the clamp is fixedly connected to the end of the conduit away from the pressure assembly, and the filter screen is disposed inside the clamp.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a pressure component and a press-type spray device. An air cylinder is sleeved on the end of the air tube with an air inlet. The air cylinder moves up and down within the air chamber formed between the air tube and the outer cylinder, thereby inflating the air tube and increasing its internal air pressure. This creates a pressure difference between the liquid container and the outside environment, allowing the liquid to enter the pump body from the conduit. A water guide groove is formed on the inclined surface of the upper end of the return spring, ensuring a stable amount of liquid entering the outlet hole. By pressing the nozzle, the pressure component pressurizes the air tube, causing the liquid in the container to pass sequentially through the outlet hole and the water guide groove, and then spray atomized droplets from the nozzle. The size of the sprayed droplets remains stable. A filter component is provided at the end of the conduit away from the pressure component. A filter screen filters particulate matter from the liquid outside the screen, preventing the conduit and nozzle from being clogged by particles, thus improving the atomization effect of the spray device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a press-type spray device according to one embodiment;

[0019] Figure 2 This is a schematic cross-sectional view of a press-type spray device according to one embodiment;

[0020] Figure 3 A top view of the inflation tube in one embodiment;

[0021] Figure 4 This is a schematic diagram of the structure of a pressure assembly according to one embodiment;

[0022] Figure 5 This is a schematic diagram of the pump body in one embodiment;

[0023] Figure 6 A cross-sectional view of a pressure mandrel according to one embodiment;

[0024] Figure 7 This is a schematic diagram of the support ring structure of one embodiment.

[0025] In the attached diagram, 10 is a press-type spray device; 100 is a nozzle; 200 is an inflation assembly; 210 is an inflation pipe; 211 is an inflation hole; 212 is a connecting hole; 220 is an outer cylinder; 221 is an inflation chamber; 222 is an annular mounting edge; 223 is a first gasket; 230 is an inflation cylinder; 231 is a sealing ring; 300 is a pressure assembly; 310 is a pump body; 311 is a retaining ring; 312 is an air inlet; 313 is a rib; 314 is a venting protrusion; 320 is a pressure core rod; 321 is a sealing gasket; 322 is a water outlet groove; 323 is a water outlet hole; 330 is a return spring; 340 is a support ring; 341 is an extension; 342 is a venting groove; 400 is a conduit; 500 is a filter assembly; 510 is a pipe clamp; and 520 is a filter screen. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0027] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] In one embodiment, such as Figures 4 to 7As shown, a pressure assembly 300 includes a pump body 310, a return spring 330, and a pressure mandrel 320. The pump body 310 is a hollow conical pump body with a spring connection hole 212. The diameter of the spring mounting hole is larger than the diameter of the return spring 330, which is disposed within the spring mounting hole. The upper end of the return spring 330 has a mounting groove with an open upper end and a snap-fit ​​ring inside the mounting groove. The upper surface of the mounting groove has an inclined surface that slopes from the outer side wall of the return spring to the inner side wall. The inclined surface has multiple protrusions to prevent the spring from being completely sealed. The lower part of the pressure mandrel 320... A snap-fit ​​groove matching the snap-fit ​​ring is provided, which snaps into the snap-fit ​​ring to fix the pressure mandrel 320 in the mounting groove. The pressure mandrel 320 is also provided with a water outlet 323, a water outlet groove 322, and a sealing gasket 321. The sealing gasket 321 is sleeved on the pressure mandrel 320 and abuts against the upper end face of the return spring 330. The water outlet 323 connects the two sides of the pressure mandrel 320. The water outlet 323 is at the same height as the inclined surface and is located below the sealing gasket 321. The water outlet groove 322 is a water outlet channel formed by the downward indentation of the upper end face of the pressure mandrel 320. The water outlet groove 322 intersects with the water outlet 323. In this embodiment, the sealing gasket 321 is a silicone gasket, which deforms under force. A guide groove is formed on the inclined surface of the upper end face of the return spring 330. When not in use, the sealing gasket 321 covers the upper end face of the mounting groove, preventing water from entering the outlet groove 322. When in use, the sealing gasket 321 is subjected to an upward force, causing it to deform upward, allowing water to gradually enter the outlet hole 323 and the outlet groove 322 along the inclined surface.

[0029] In one embodiment, the upper outer side of the pump body 310 is provided with a ventilating protrusion 314 and a retaining ring 311 from top to bottom. The retaining ring 311 is provided with a plurality of air inlets 312. The pump body 310 is provided with a plurality of ribs 313, which are equally spaced on the outer side wall of the pump body 310 and are located below the retaining ring 311. Specifically, the ventilating protrusions 314 are vertically arranged and arranged in a circular array on the upper part of the outer wall of the pump body 310; the retaining ring 311 is located below the ventilating protrusions 314 and is used to fix the pump body 310 inside the inflation tube 210; the retaining ring 311 is provided with multiple air inlets 312 for gas flow; the outer wall of the pump body 310 is also provided with multiple ribs 313, which are equally spaced and located below the retaining ring 311, to prevent the pump body 310 from deforming due to high pressure and to improve the service life of the pump body 310.

[0030] In one embodiment, the pump body further includes a support ring 340 fitted onto the upper part of the pump body. The upper end of the support ring 340 has an extension 341 extending toward the shaft core, and the lower end face of the extension 341 has a venting groove 342. Specifically, the support ring 340 is a hollow cylinder. The upper end of the support ring 340 has an extension 341 extending toward the shaft core. The side of the extension 341 away from the upper end face of the support ring 340 has multiple venting grooves 342. The support ring 340 is fitted onto the side of the pump body with venting protrusions 314, and the upper end face of the pump body abuts against the lower end face of the extension 341. The grooves between the venting protrusions 314 and the venting grooves 342 form a gas flow channel, allowing gas outside the pump body to enter the pump body.

[0031] like Figures 1 to 3 As shown, this utility model also provides a press-type spray device 10, including: a nozzle 100, an inflation assembly 200, a conduit 400, a filter assembly 500, and a pressure assembly 300 as described in any of the above embodiments; the inflation assembly 200 includes an inflation tube 210 and an inflation cylinder 230 sleeved on the inflation tube 210; the inflation tube 210 is a hollow cylindrical tube, one end of the inflation tube 210 is open, and the other end is provided with a connection hole 212 and a plurality of inflation holes 211, the nozzle 100 is disposed above the connection hole 212, the pressure assembly 300 is disposed inside the inflation tube 210, and the upper end of the pressure mandrel 320 passes through the connection hole 212 and is connected to the nozzle 100; one end of the conduit 400 is fixedly connected to the bottom of the pump body 310, and the other end of the conduit 400 is fixedly connected to the filter assembly 500.

[0032] In this embodiment, the press-type spray device 10 is installed on the liquid container, and the two are used together. A connection hole 212 and four inflation holes 211 arranged around the connection hole 212 are provided at one end of the inflation pipe 210. A nozzle 100 is provided above the connection hole 212. The pressure component 300 is disposed inside the inflation pipe 210. The pressure mandrel 320 passes through the connection hole 212 and is connected to the nozzle 100. Under the action of the inflation cylinder 230, air is inflated into the inflation pipe 210 through the inflation holes 211, increasing the pressure applied to the liquid in the container. When the nozzle 100 is pressed, the pressure component 300 applies pressure to the inflation pipe 210. The liquid in the container, after being filtered by the filter component 500, passes through the conduit 400 and the pressure component 300 in sequence and is sprayed out from the nozzle 100. Due to the local negative pressure around the nozzle 100, the sprayed liquid will rapidly expand due to the sudden pressure drop, forming atomized droplets, thus achieving the purpose of spraying atomized liquid.

[0033] In one embodiment, a support portion is provided on the inner wall of the inflation tube 210, and the support portion engages with a retaining ring 311 on the pump body 310, thereby fixing the pump body 310 inside the inflation tube 210. Specifically, the inflation tube 210 is provided with a support portion that matches the retaining ring 311, and the retaining ring 311 engages with the support portion, thereby fixing the pump body 310 inside the inflation tube 210. When the pressure core rod 320 and the return spring 330 are pressed, the position of the pump body 310 remains unchanged.

[0034] In one embodiment, the diameter of the sealing gasket 321 is equal to the diameter of the hollow portion of the inflation tube 210. Specifically, the sealing gasket 321 is equal to the diameter of the hollow portion of the inflation tube 210, and the sealing gasket 321 is located directly below the inflation hole 211. When the inflation tube 210 is inflated, the sealing gasket 321 bends downward due to the airflow, allowing gas to fill the inflation tube 210 and enter the liquid container. When inflation stops, because the pressure inside the liquid container is greater than atmospheric pressure, the sealing gasket 321 is subjected to an upward force, pressing the sealing gasket 321 tightly against the lower end face of the inflation hole 211, thereby blocking the inflation hole 211 and preventing liquid from flowing out of the inflation hole 211.

[0035] In one embodiment, the outer side of the inflation tube 210 is provided with a hollow outer cylinder 220, one end of the outer cylinder 220 is connected to the end of the inflation tube 210 away from the connection hole 212, and the inner side wall of the outer cylinder 220 and the outer side wall of the inflation tube 210 form an inflation chamber 221 with one end open. Specifically, the inflation tube 210 and the outer cylinder 220 form a double-layered cylinder. One end of the outer cylinder 220 is connected to the outer side of the end of the inflation tube 210 away from the connecting hole 212. An inflation chamber 221 is formed between the inner wall of the outer cylinder 220 and the outer wall of the inflation tube 210. The upper end of the inflation chamber 221 is open and the lower end is closed. The opening direction of the inflation tube 210 is opposite to the opening direction of the inflation chamber 221. The length of the outer cylinder 220 is shorter than the length of the inflation tube 210, that is, the end of the outer cylinder 220 near the connecting hole 212 is lower than the height of the connecting hole 212, which facilitates pressing to control the nozzle 100.

[0036] In one embodiment, the outer cylinder 220 has an outwardly flared annular mounting edge 222 near the inflation port 211. The annular mounting edge 222 is used to mount the press-type spray device 10 onto the container. A first gasket 223 is provided below the annular mounting edge 222. Specifically, the annular mounting edge 222 is located on the outer side of the end of the outer cylinder 220 near the inflation port 211. The press-type spray device 10 is mounted on the bottle mouth of the liquid container through the annular mounting edge 222. The annular mounting edge 222 is threaded or snapped onto the bottle mouth of the liquid container. A circular first gasket 223 is also provided below the annular mounting edge 222. The first gasket 223 is used to improve the sealing at the connection between the annular mounting edge 222 and the bottle mouth of the liquid container, preventing liquid from leaking out from the connection.

[0037] In one embodiment, the air cylinder 230 is a hollow cylinder with one open end. The air cylinder 230 is sleeved on the air tube 210 and located in the air chamber 221. The open end of the air cylinder 230 is provided with a sealing ring 231 that protrudes outward. The outer diameter of the sealing ring 231 is equal to the inner diameter of the outer cylinder 220. Specifically, one open end of the air cylinder 230 is fitted onto the end of the air tube 210 that has an air inlet 211, and the end of the air cylinder 230 located in the air chamber 221 has an outwardly protruding sealing ring 231. The inner diameter of the air cylinder 230 is greater than or equal to the outer diameter of the air tube 210, and the outer diameter of the sealing ring 231 is equal to the outer diameter of the air chamber 221, that is, the outer diameter of the sealing ring 231 is equal to the inner diameter of the outer cylinder 220, thereby improving the sealing performance of the air cylinder 230 after entering the air chamber 221. The air cylinder 230 moves up and down in the air chamber 221, thereby filling the air tube 210 with gas through the air inlet 211, thereby applying pressure to the liquid in the container and causing the liquid to enter the pressure assembly 300.

[0038] In one embodiment, the filter assembly 500 includes a clamp 510 and a filter screen 520; one end of the clamp 510 is fixedly connected to the end of the conduit 400 away from the pressure assembly 300, and the filter screen 520 is disposed inside the clamp 510. Specifically, the filter assembly 500 is fixed to the end of the conduit 400 away from the pressure assembly 300, the upper and lower surfaces of the clamp 510 are connected, the conduit 400 is fixedly connected to one end of the clamp 510, and the filter screen 520 is disposed in the middle of the clamp 510. The filter screen 520 blocks particulate matter in the liquid outside the filter screen 520, preventing particulate matter from entering the conduit 400 and the nozzle 100, thereby reducing the probability of blockage of the conduit 400, the pressure mandrel 320, and the pump body 310, and improving the user experience.

[0039] The general workflow of this utility model is as follows: First, the press-type spray device 10 is installed on the liquid container. Air is then pumped into the inflation tube 210 through the air cylinder 230, making the air pressure inside the liquid container greater than atmospheric pressure. This applies pressure to the liquid surface, causing the liquid to pass through the filter assembly 500 and the conduit 400 into the pump body 310. After inflation is complete, the air cylinder 230 is removed from the inflation tube 210. At this time, the sealing gasket 321 is pressed against the inflation hole 211, blocking the inflation hole 211 and improving the airtightness inside the inflation tube 210. Then, the nozzle 100 is pressed down to apply pressure. The core rod 320 descends simultaneously with the nozzle 100. The gas outside the pump body inside the liquid container enters the pump body through the grooves between the vent protrusions 314 and the vent groove 342, and mixes with the liquid inside the pump body to form a gas-liquid mixture. Subsequently, the gas-liquid mixture can enter the water outlet 323 from the inclined surface of the upper end face of the return spring 330, and then be sprayed out from the nozzle 100 through the water outlet groove. Due to the formation of a local negative pressure around the nozzle 100, the gas-liquid mixture sprayed from the nozzle 100 will expand rapidly due to the sudden drop in pressure to form a mist droplets, thereby achieving the purpose of spraying atomized droplets.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pressure assembly, characterized in that, The pump includes a pump body, a return spring, and a pressure mandrel. The pump body has two connected ends and a spring mounting hole. The return spring is housed within the spring mounting hole, and its height is greater than the height of the spring mounting hole. The upper end of the return spring has a mounting groove with an opening at the top. A snap-fit ​​ring is located within the mounting groove. The upper surface of the mounting groove has an inclined surface that slopes from the outer side wall to the inner side wall, and multiple protrusions are located on the inclined surface. The pressure mandrel is housed within the mounting groove and has a snap-fit ​​groove that matches the snap-fit ​​ring. The snap-fit ​​groove snaps into the snap-fit ​​ring. A sealing gasket is provided on the pressure mandrel. The pressure mandrel has water outlets connecting both sides of the mandrel and a water outlet groove connecting the water outlets and the upper surface of the mandrel. The water outlets are located below the sealing gasket and are at the same horizontal level as the inclined surface.

2. The pressure assembly according to claim 1, characterized in that, The upper outer side of the pump body is provided with a ventilating protrusion and a retaining ring from top to bottom. The retaining ring is provided with multiple air inlets. The pump body is provided with multiple ribs, which are equally spaced on the outer side wall of the pump body and are located below the retaining ring.

3. The pressure assembly according to claim 2, characterized in that, It also includes a support ring fitted onto the upper part of the pump body, the upper end of the support ring having an extension extending toward the shaft core, and the lower end face of the extension having an air vent groove.

4. A press-type spray device, characterized in that, include: Nozzle, inflation assembly, conduit, filter assembly, and pressure assembly as described in any one of claims 1 to 3; The inflation assembly includes an inflation tube and an inflation cylinder fitted onto the inflation tube; the inflation tube is a hollow cylindrical tube, with one end open and the other end having a connection hole and multiple inflation holes; the nozzle is positioned above the connection hole; the pressure assembly is positioned inside the inflation tube, and the upper end of the pressure mandrel passes through the connection hole and is connected to the nozzle; one end of the conduit is fixedly connected to the bottom of the pump body, and the other end of the conduit is fixedly connected to the filter assembly.

5. The press-type spray device according to claim 4, characterized in that, The inner wall of the inflation tube is provided with a support part, which is engaged with a retaining ring on the pump body to fix the pump body inside the inflation tube.

6. The press-type spray device according to claim 4, characterized in that, The diameter of the sealing gasket is equal to the diameter of the hollow portion of the inflation tube.

7. The press-type spray device according to claim 4, characterized in that, The outer side of the inflation tube is provided with a hollow outer cylinder. One end of the outer cylinder is connected to the end of the inflation tube away from the connection hole. The inner side wall of the outer cylinder and the outer side wall of the inflation tube form an inflation chamber with one end open.

8. The press-type spray device according to claim 7, characterized in that, The outer cylinder has an outwardly flared annular mounting edge at the end near the inflation hole. The annular mounting edge is used to mount the press-type spray device onto the container. A first gasket is provided below the annular mounting edge.

9. The press-type spray device according to claim 7, characterized in that, The air cylinder is a hollow cylinder with one open end. The air cylinder is sleeved on the air tube and located in the air chamber. The open end of the air cylinder is provided with a sealing ring that protrudes outward. The outer diameter of the sealing ring is equal to the inner diameter of the outer cylinder.

10. The press-type spray device according to claim 4, characterized in that, The filter assembly includes a clamp and a filter screen; one end of the clamp is fixedly connected to the end of the conduit away from the pressure assembly, and the filter screen is disposed inside the clamp.

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