TWI757155B - Explosion-proof refillable spray cans - Google Patents

Abstract

The present invention is provided with a first shell, a second shell and a ring; the first shell is provided with a first body and a first net body, the first body is made of plastic material, the first The net body is made of metal material, and the first net body is provided with a plurality of first mesh holes arranged at intervals, the first body covers the first net body; the second shell is detachably combined with the first net body The first shell is provided with a second body and a second net body, the second body is made of plastic material, the second net body is made of metal material, and the second net body is provided with a plurality of a second mesh hole arranged at intervals, the second body wraps the second mesh body; the tie ring is made of metal material, and the tie ring is sleeved on the second shell and combined with the first shell so as to provide a refillable spray can with explosion-proof effect.

Description

Explosion-proof refillable spray cans

The present invention relates to a spray can, in particular to a filling spray can with explosion-proof effect, which is made of different materials, can be reused, is environmentally friendly, has convenience and safety.

The existing filling type spray can mainly includes a lower casing, an upper casing and a tie ring; the lower casing and the upper casing are both components made of plastic, and the upper casing is detachably combined with the lower casing a shell; the collar is a component made of metal material and is sleeved on the joint of the upper shell and the lower shell. The upper casing is detachably combined with the structure design of the lower casing, so that the user can disassemble the upper casing and inject liquid into the lower casing when the liquid in the existing filling aerosol can is used up , and then put back the upper shell, and finally inject high-pressure gas into the existing filled spray can, whereby the existing filled spray can can be reused without unnecessary waste and is environmentally friendly. Due to the separable structural design of the upper shell and the lower shell, the baffle ring is a reinforcement provided by the tank body formed by the upper shell and the lower shell, which cannot withstand excessive gas pressure. member.

However, the collar is only sleeved on the joint of the upper casing and the lower casing, and the lower casing and the upper casing are both components made of plastic. When the instantaneous gas pressure is too high , the place where the lower shell or the upper shell is not in contact with the collar may still be cracked due to insufficient structural strength. Therefore, the existing filled aerosol cans need to be improved.

In order to solve the problem that the collar of the existing filling spray can is only sleeved on the joint of the upper shell and the lower shell, and the lower shell and the upper shell are both components made of plastic, when the instantaneous gas pressure When the force is too high, the place where the lower casing or the upper casing is not in contact with the collar may be cracked due to insufficient structural strength. The main purpose of the present invention is to provide an explosion-proof effect that can solve the current technical problem. The refillable spray can includes: a first shell, the first shell is provided with a first body and a first net body, the first body is a component made of plastic material, the first The mesh body is a member made of metal material, and the first mesh body is provided with a plurality of first mesh holes arranged at intervals, the first body covers the first mesh body, and the plastic material of the first body is in the During injection molding, the liquid plastic material is ejected from the inner and outer sides of the first mesh body toward the first mesh body to form plastic material layers located at the inner and outer sides of the first mesh body, and penetrate the first mesh body. Each first mesh of a mesh body is integrated with the first mesh body and covers the plurality of first meshes; a second shell, the second shell is detachably combined with the first mesh A shell is provided with a second body and a second net body, the second body is a member made of plastic material, the second net body is a member made of metal material, and the second body is made of a plastic material. The mesh body is provided with a plurality of second mesh holes arranged at intervals. The second body covers the second mesh body. When the plastic material of the second body is injection-molded, the plastic material in liquid state is passed from the second mesh body. The inner and outer sides of the second mesh are projected toward the second mesh to form plastic material layers located at the inner and outer sides of the second mesh, respectively, and penetrate through the second mesh holes of the second mesh, and the second mesh is connected to the second mesh. The body is integrated into one body and covers the plurality of second meshes; a shell.

Further, in the aforementioned refillable spray can with explosion-proof effect, each of the first meshes is a polygon.

Still further, in the aforementioned refillable spray can with explosion-proof effect, each of the second meshes is a polygon.

Furthermore, in the aforementioned refillable spray can with explosion-proof effect, each of the first meshes is a hexagon.

Preferably, in the refillable spray can with explosion-proof effect as described above, each of the second meshes is a hexagon.

More preferably, in the refillable spray can with explosion-proof effect as described above, the first body of the first casing is provided with a first screw part, and the first screw part is formed on the first body one end of the second body adjacent to the second shell; the second body of the second shell is provided with a second screw part, the second screw part is formed on the second body adjacent to the first shell One end of the first body, the second shell is combined with the first screw part of the first body of the first shell through the second screw part of the second body.

More preferably, in the aforementioned refillable spray can with explosion-proof effect, the first body of the first casing is provided with a first abutting surface, and the first abutting surface is formed on the first body one end of the second body adjacent to the second shell; the second body of the second shell is provided with a second abutting surface, the second abutting surface is formed on the second body adjacent to the first shell one end of the first body, and the second abutting surface abuts the first abutting surface.

More preferably, in the refillable spray can with explosion-proof effect as described above, the second body of the second casing is provided with a setting groove, and the setting groove is concavely formed on the outer surface of the second body; The collar is sleeved on the setting groove.

More preferably, in the refillable spray can with explosion-proof effect as described above, wherein the filled aerosol can with explosion-proof effect is provided with a pressure relief valve, and the pressure relief valve is arranged in the second housing and passes through the second body and the second net body.

By the above-mentioned technical means, the effect that the present invention obtains is enhanced to have:

1. Compared with the existing filling type spray can, the collar is only sleeved on the joint of the upper shell and the lower shell, and the lower shell and the upper shell are both components made of plastic. Instantaneous gas pressure over When the height is high, the place where the lower casing or the upper casing is not in contact with the collar may be cracked due to insufficient structural strength; The first net body and the second net body are respectively arranged in the shell, and the first net body and the second net body are both components made of metal materials, so the first shell and the second net body can be reinforced. The structural strength of the place where the second shell is not in contact with the collar can prevent the instantaneous gas pressure from being too high, resulting in the rupture of the first shell and the second shell, and ensure the safety in use. .

2. Each first mesh of the first mesh body of the first casing and each second mesh of the second mesh body of the second casing are hexagonal, so that the first mesh body and the second mesh body are hexagonal. The second mesh body has high pressure resistance.

3. The collar is sleeved on the setting groove of the second body of the second shell. When the gas is to escape from the gap between the second shell and the first shell, because the collar It is limited in the setting groove and cannot be displaced relative to the second casing, so that the collar is always sleeved on the second casing and combined with the first casing, and further strengthens the second casing and the Stability of the bond between the first shells.

4. Compared with the one-piece spray can generally made of metal material, it has no penetration and cannot confirm the content of the liquid contained in it, and the weight is relatively heavy; The first body of the casing and the second body of the second casing are both components made of plastic materials, which can transmit light, so that the user can see the explosion-proof filling spray can of the present invention from the outside. The residual amount of the contained liquid is light, and the inconvenience of using the one-piece spray can made of metal material is improved.

10: The first shell

11: The first body

111: The first screw part

112: The first contact surface

113: Ribs

114: air injection hole

12: The first net body

121: The first mesh

13: Air injection valve

20: Second shell

21: The second body

211: The second screw part

212: Second contact surface

213: set slot

214: Air outlet

22: Second mesh body

221: Second mesh

30: girdle

40: Pressure relief valve

50: Nozzle assembly

FIG. 1 is a three-dimensional appearance view of a preferred embodiment of the present invention.

Figure 2 is a perspective plan front view of the preferred embodiment of the present invention.

FIG. 3 is a partial cross-sectional perspective exploded view of a preferred embodiment of the present invention.

Figure 4 is a partial cutaway plan front view of the preferred embodiment of the present invention.

5 is an exploded perspective view of a preferred embodiment of the present invention.

6 is a partial cross-sectional three-dimensional appearance view of the first casing according to the preferred embodiment of the present invention.

FIG. 7 is a partial cross-sectional three-dimensional appearance view of the second casing according to the preferred embodiment of the present invention.

In order to understand the technical features and practical effects of the present invention in detail, and to realize it according to the contents of the description, hereby further use the preferred embodiment as shown in the drawings, the detailed description is as follows: the explosion-proof effect proposed by the present invention The preferred embodiment of the filled aerosol can is shown in FIGS. 1 to 4 , which includes a first casing 10 , a second casing 20 , a bundle ring 30 , a pressure relief valve 40 and a nozzle assembly 50 , wherein : As shown in FIGS. 3 to 6 , the first casing 10 is arranged on the lower half of the filled spray can with explosion-proof effect, and is provided with a first body 11 , a first net body 12 and a gas injection valve 13. The first body 11 is a member made of plastic material, and is provided with a first screwing portion 111, a first abutting surface 112, a plurality of protruding ribs 113 and an air injection hole 114; the first screwing portion 111 is formed on one end of the first body 11 adjacent to the second shell 20 ; the first abutting surface 112 is formed on the first body 11 and is disposed on the first screw portion 111 away from the second shell 20 one side of the first body 11 ; the plurality of protruding ribs 113 are protruded on the outer surface of the first body 11 at intervals; The first mesh body 12 is a member made of metal material, and is provided with a plurality of first mesh holes 121 arranged at intervals, and the first mesh body 12 is covered by the first body 11 . Further, each first mesh body 12 is A mesh hole 121 is a circular hole, a polygonal hole, or a mesh hole of other shapes. In the preferred embodiment of the present invention, each first mesh hole 121 is a hexagon, and the surrounding The solid portion of the mesh body is equally stressed in all directions, and it is easy to disperse the force, so that the pressure resistance of the first mesh body 12 is high, thereby improving the overall pressure resistance of the first shell 10 . The gas injection valve 13 is combined with the gas injection hole 114 of the first body 11 .

In a preferred embodiment of the present invention, the first body 11 is combined with the first mesh body 12 by means of injection molding, and the plastic material for forming the first body 11 is a liquid plastic material during injection molding. The material is ejected from the inner and outer sides of the first mesh body 12 toward the first mesh body 12 to form separate positions. The plastic material layers on the inner side and the outer side of the first mesh body 12 penetrate through the first mesh holes 121 of the first mesh body 12 to be tightly integrated with the first mesh body 12 and wrap around the first mesh body 12 . cover the plurality of first meshes 121 .

As shown in Figures 3, 4, 5 and 7, the second casing 20 is disposed on the upper half of the refillable spray can with explosion-proof effect, and is detachably combined with the first casing 10, and is provided with a The second body 21 and a second net body 22 . The second body 21 is a member made of plastic material, and is provided with a second screw portion 211 , a second abutting surface 212 , a setting groove 213 and an air outlet portion 214 ; the second screw portion 211 The first screw portion 111 is formed on one end of the second body 21 adjacent to the first body 11 of the first casing 10 , and the first screw portion 111 is formed on one end of the first body 11 adjacent to the second body 21 of the second casing 20 , the second shell 20 is combined with the first screw portion 111 of the first body 11 of the first shell 10 through the second screw portion 211 of the second body 21 ; the second abutting surface 212 forms After the second body 21 is adjacent to one end of the first body 11 of the first housing 10, after the second screw portion 211 is combined with the first screw portion 111, the second abutting surface 212 and the first An abutting surface 112 abuts against; the setting groove 213 is concavely formed on the outer surface of the second body 21 , and the setting groove 213 surrounds the second screwing part 211 ; the air outlet 214 is formed on the second body 21 One end away from the first housing 10 .

As shown in FIGS. 3 , 4 and 7 , the second mesh body 22 is a member made of metal material, and is provided with a plurality of second mesh holes 221 arranged at intervals, and the second mesh body 22 is formed by the second mesh body 22 . The two main bodies 21 are covered. Further, each second mesh hole 221 can be a circular hole, a polygonal hole, or a mesh hole of other shapes. In the preferred embodiment of the present invention, each second mesh hole 221 is a Hexagonal shape, the solid parts around each second mesh 221 are equally stressed in all directions, and the force is easily dispersed, so that the second mesh body 22 has a high compressive capacity, thereby improving the strength of the second shell 20. overall pressure resistance.

In a preferred embodiment of the present invention, the second body 21 is combined with the second mesh body 22 by means of injection molding, and the plastic material for forming the second body 21 is a liquid plastic material during injection molding. The material is ejected from the inner and outer sides of the second mesh body 22 toward the second mesh body 22 to form separate positions. The plastic material layers on the inner side and the outer side of the second mesh body 22 penetrate through the second mesh holes 221 of the second mesh body 22 to be tightly integrated with the second mesh body 22, and cover the second mesh body 22. cover the plurality of second meshes 221 .

As shown in FIGS. 3 , 4 and 7 , the collar 30 is a member made of metal material, and is sleeved on the setting groove 213 of the second body 21 of the second housing 20 , because the setting groove 213 surrounds The second screwing portion 211, and the second shell 20 is combined with the first screwing portion 111 of the first shell 10 through the second screwing portion 211, so that the collar 30 is sleeved on the first shell 10. The second casing 20 is combined with the first casing 10 . Since the collar 30 is made of metal material and has high strength, the structure of the collar 30 sleeved on the joint of the second casing 20 and the first casing 10 can avoid the second The tank formed by the casing 20 and the first casing 10 cannot withstand the situation that the gas under the pressure is too high to separate from each other.

As shown in FIGS. 3 and 5 , the pressure relief valve 40 is disposed in the second casing 20 and passes through the second body 21 and the second net body 22 of the second casing 20 , and when the second casing 20 passes through the second body 21 and the second net body 22 When the internal pressure of the tank formed by 20 and the first shell 10 is too high, the pressure can also be released through the pressure relief valve 40 .

As shown in FIGS. 3 and 7 , the nozzle assembly 50 is combined with the air outlet 214 of the second body 21 of the second housing 20 . Since the nozzle assembly 50 is in the prior art, detailed descriptions are omitted.

As shown in FIGS. 3 and 5 , when the liquid contained in the filled aerosol can with explosion-proof effect is used up, the user can rotate the second casing 20 so that the second casing 20 is connected to the first casing 20 . The shells 10 are separated, and the liquid is injected into the first shell 10 , the second shell 20 is reassembled in the first shell 10 , and finally the high-pressure gas is injected through the first shell 10 . The air valve 13 is injected into the tank formed by the first housing 10 and the second housing 20, whereby the refillable spray can with explosion-proof effect of the present invention can be reused, environmentally friendly, and easy to use. When the user wants to use the refillable spray can with explosion-proof effect of the present invention, he presses the nozzle assembly 50, and the liquid contained in the present invention is sprayed out in the form of a spray.

By the above-mentioned technical means, the effect that the present invention obtains is enhanced to have:

1. Compared with the existing filling type spray can, the collar is only sleeved on the joint of the upper shell and the lower shell, and the lower shell and the upper shell are both components made of plastic. When the instantaneous gas pressure is too high, the place where the lower casing or the upper casing is not in contact with the collar may be cracked due to insufficient structural strength; The casing 10 and the second casing 20 are respectively provided with the first net body 12 and the second net body 22 , and the first net body 12 and the second net body 22 are both made of metal materials Therefore, the structural strength of the places where the first casing 10 and the second casing 20 are not in contact with the collar 30 can be reinforced, so as to avoid the instantaneous high gas pressure, causing the first casing 10 and the When the second casing 20 is broken, the safety in use is ensured.

2. Each of the first meshes 121 of the first mesh body 12 of the first casing 10 and each of the second meshes 221 of the second mesh body 22 of the second casing 20 are hexagonal, so that the A mesh body 12 and the second mesh body 22 have high pressure resistance.

3. The collar 30 is sleeved on the setting groove 213 of the second body 21 of the second casing 20 , when the gas is about to escape from the gap between the second casing 20 and the first casing 10 Since the collar 30 is limited in the setting groove 213 and cannot be displaced relative to the second casing 20 , the collar 30 is always sleeved on the second casing 20 and combined with the first casing 10 , to further strengthen the stability of the combination between the second casing 20 and the first casing 10 .

4. Compared with the one-piece spray can generally made of metal material, it has no penetration and cannot confirm the content of the liquid contained in it, and the weight is relatively heavy; The first body 11 of the casing 10 and the second body 21 of the second casing 20 are both components made of plastic material, which can transmit light, so that the user can see the filling with explosion-proof effect of the present invention from the outside. The residual amount of the liquid contained in the type spray can is light, and the inconvenience of using the one-piece spray can made of metal material is improved.

10: The first shell

11: The first body

111: The first screw part

12: The first net body

121: The first mesh

20: Second shell

21: The second body

211: The second screw part

22: Second mesh body

221: Second mesh

30: girdle

40: Pressure relief valve

50: Nozzle assembly

Claims (10)

A filling spray can with explosion-proof effect is provided with: a first shell, the first shell is provided with a first body and a first net body, the first body is made of plastic material The first mesh body is a member made of metal material, and the first mesh body is provided with a plurality of first mesh holes arranged at intervals, the first body covers the first mesh body, and the first mesh body covers the first mesh body. When the plastic material of the main body is injection-molded, the plastic material in liquid state is ejected from the inner and outer sides of the first mesh body toward the first mesh body to form plastic material layers located at the inner and outer sides of the first mesh body, respectively. and penetrate each of the first meshes of the first mesh body, merge with the first mesh body, and cover the plurality of first meshes; a second shell, the second shell is detachable is combined with the first casing, and is provided with a second body and a second net body, the second body is a component made of plastic material, and the second net body is a component made of metal material , and the second mesh body is provided with a plurality of second mesh holes arranged at intervals, the second body covers the second mesh body, and the plastic material of the second body is in a liquid state during injection molding. The inner and outer sides of the second mesh body are ejected toward the second mesh body to form plastic material layers respectively located at the inner and outer sides of the second mesh body, and penetrate through the second mesh holes of the second mesh body, and It is integrated with the second mesh body, and covers the plurality of second mesh holes; The body is combined with the first casing. The refillable spray can with explosion-proof effect according to claim 1, wherein each of the first meshes is a polygon. The refillable spray can with explosion-proof effect according to claim 1, wherein each second mesh hole is a polygon. The refillable spray can with explosion-proof effect according to claim 2, wherein each of the first meshes is a hexagon. The refillable spray can with explosion-proof effect according to claim 3, wherein each second mesh hole is a hexagon. The refillable spray can with explosion-proof effect according to any one of claims 1 to 5, wherein the first body of the first casing is provided with a first screwing portion, and the first screwing portion is formed in the The first body is adjacent to one end of the second body of the second shell; the second body of the second shell is provided with a second screw part, the second screw part is formed on the second body adjacent to the first One end of the first body of a housing, the second housing is combined with the first screwing part of the first body of the first housing through the second screwing part of the second body. The refillable spray can with explosion-proof effect according to claim 6, wherein the first body of the first casing is provided with a first abutting surface, the first abutting surface is formed on the first body, and is provided with on the side of the first screwing portion away from the second shell; the second body of the second shell is provided with a second abutting surface, and the second abutting surface is formed on the second body adjacent to the first One end of the first body of a casing, and the second abutting surface abuts against the first abutting surface. The refillable spray can with explosion-proof effect according to any one of claims 1 to 5, wherein the second body of the second casing is provided with a setting groove, and the setting groove is recessed and formed in the second body. the outer surface; the collar is sleeved on the setting groove. The refillable spray can with explosion-proof effect as claimed in claim 7, wherein the second body of the second casing is provided with a setting groove, and the setting groove is concavely formed on the outer peripheral surface of the second body; the collar sleeved in the setting slot. The refillable spray can with explosion-proof effect according to any one of claims 1 to 5, wherein the filled aerosol can with explosion-proof effect is provided with a pressure relief valve, and the pressure relief valve is arranged in the second housing, and pass through the second body and the second net body.

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