JP5995893B2 - Spray equipment - Google Patents

Description

  The present invention relates to a spray device, and more particularly to a spray device attached to a mouth of a bottle which is a container containing a liquid.

  Commercially available products in liquid form are sold in containers. Most of the container is provided with a spray device, and the spray device is pressed to change the pressure to discharge the liquid in the container. Such a spray device has an advantage that it is easy to operate and can discharge a certain amount. For this reason, it is widely applied as a means for discharging contents from containers containing liquids, and its application range is from shampoos, body soaps, etc. to detergents for washing dishes used in the kitchen, bathrooms and toilets. Contains detergent. That is, the spray device is widely applied, and the products to which it is applied are diversified. At present, it is one of the technologies widely used in the industry.

  The structure and form of the spray device described above have been researched and developed along with the development of technology, and many modifications have been made. However, even though many modifications and changes have been made and improved, conventional spray devices still have problems today and have drawbacks to be improved.

  FIG. 1 is a cross-sectional view showing the structure of a conventional spray device. As disclosed in the drawings, the spray device 200 includes a spray head 201. In general, the spray head 201 is preliminarily pressed downward in order to prevent the stored liquid from leaking to the outside when the spray device 200 collides with another object or when the spray head 201 is unexpectedly pressed. The main body 202 is tightly screwed. However, the spray head 201 is kept pressed downward. The piston 203 in the spray device 200 is opened, and the liquid passage 204 is opened. For this reason, when it inclines unexpectedly in the process of carrying, the liquid accommodated in the container main body 202 oozes out from the liquid channel | path 204 or another clearance gap.

  Further, the conventional spray device does not have a waterproof function. For this reason, moisture enters from the outside through the gap and changes the liquid in the container. Furthermore, some liquid remains in the nozzle after pushing the spray head. The remaining liquid slowly flows out of the nozzle and drops by the attractive force. However, the conventional spray device does not have a function of sucking and returning the liquid remaining in the nozzle. These are all disadvantages found in conventional spray devices.

  This invention makes it a subject to provide the spray apparatus with which the liquid which is the contents of a container does not leak in the state which pressed the spray head.

  Another object of the present invention is to provide a spray device that can recover liquid remaining in the nozzle without being discharged and efficiently prevent the liquid from dripping down.

  Another object of the present invention is to provide a spray device in which moisture does not flow into the container from the outside.

  Accordingly, as a result of intensive research in view of the drawbacks found in the conventional spray device, the present inventor has provided a partition plate having a through-hole in the center position, which is a hollow tube body, and has a bottom end. A cylinder that has a storage groove that communicates with the through hole of the partition plate and has a liquid passage opening at the upper end, a lid that covers the liquid passage opening, and a backflow prevention that connects to the lid through the through hole A hollow tube body that is provided in the storage groove and reciprocates up and down to open and close the liquid passage opening and a piston portion that is in contact with the inner wall of the cylinder at one end. A piston rod slidably provided in the cylinder, an elastic body through which the piston rod is inserted, a container cap having an opening through which the cylinder passes, and a hollow tube body provided in the cylinder The piston rod is inserted into the interior. A hollow tube that is inserted into the lid and the fixed lid and is connected to and communicates with the cylinder, and an inner contact portion is formed on the inner wall where the elastic body and the piston rod come into contact. An upper pressure pipe, a liquid outlet is formed in the wall, and a guide pipe communicating with the cylinder is formed at the lower end. The hollow piston is inserted into the upper pressure pipe and communicates therewith, and is connected to the upper pressure pipe. The spray device comprising a nozzle and a connecting pipe at the lower end, and a hollow pressure head portion in which the piston is provided, can be used to solve the problem. The present invention was completed based on the above. The present invention will be described below.

The spray device according to claim 1 is a hollow tube body provided with a partition plate having a through hole formed at a central position therein, communicated with the through hole of the partition plate at the bottom end, and an upper end A cylinder formed with a storage groove having a liquid passage port as a fluid passage;
A lid that covers the liquid passage opening; and a backflow prevention rod that passes through the through-hole and connects to the lid, and is provided in the storage groove to reciprocate up and down. A backflow preventer that opens the liquid passage and moves downward to close the liquid passage;
A hollow tube provided with a piston portion that abuts the inner wall of the cylinder at one end, and a piston rod slidably provided in the cylinder;
An elastic body that is inserted from the upper end of the piston rod to impart elasticity to the piston rod ;
An opening through which the cylinder passes is formed at the upper end, and a container cap for screwing the inner peripheral surface into the liquid container ;
A hollow tube provided inside the cylinder, the outer peripheral surface is formed with a protruding portion protruding outwardly to engage with the engaging portion of the cylinder, and the piston rod is inserted into the inside. A fixed lid,
A hollow tube that is inserted through the fixed lid, is connected to and communicates with the cylinder through the fixed lid , and the inner wall protrudes toward the center to form an internal contact portion. and a pressure pipe pushing the upper portion to the internal contact portion and the elastic body and the piston rod you contact,
A liquid outlet is formed in the wall surface, a guide pipe communicating with the cylinder is formed at a lower end, and a hollow piston is inserted into and communicated with the upper pressing pressure pipe;
The nozzle is connected to and communicates with the upper pressure tube, and has a nozzle extending outward, and a connection tube at the lower end, and a hollow pressure head portion in which the piston is provided.

According to a second aspect of the present invention, there is provided a spray device according to the first aspect, wherein one end of the cylinder is an engagement end and the other end is a suction end, and an engagement portion is formed on the outer peripheral surface of the engagement end. A flange portion is integrally formed at a position close to the joint portion, and the diameter of the suction end is made narrower than the diameter of the cylinder.

In the spray device according to a third aspect , the backflow prevention gutter according to the first aspect is formed by a first casing and a second casing which are provided at intervals and via a plurality of elastic bodies.

In the spray device according to a fourth aspect , the plurality of elastic bodies according to the third aspect are selected from any one of a circular shape, a dogleg shape, a semicircular shape, and a square shape.

Spray device according to claim 5, the one end of the second rod in the claims 3 to form a taper portion, one end of said second rod is engaged with the through hole of the partition plate.

A spray device according to a sixth aspect of the present invention is the outer peripheral surface of the piston rod according to the first aspect, wherein the lower end step portion is formed at a position close to the piston portion, and the outer peripheral surface of the other end of the piston rod is Forming an upper end step portion with which the inner contact portion of the upper pressure tube contacts ,
The fixed lid body has an upper end opening as a liquid outlet and a lower end opening as a liquid inlet, and a position limiting step portion with which the lower end step portion abuts is formed on the inner peripheral surface of the liquid inlet .

According to a seventh aspect of the present invention, there is provided the spray device according to the first aspect, wherein the inner peripheral surface of the fixed lid body is screwed into a position close to the liquid inlet to form a screw thread , and the inner periphery of the lower end of the upper pressure pipe A screw thread is formed on the surface to be screwed into the screw thread of the fixed lid .

A spray device according to an eighth aspect of the present invention is the first annular engagement protrusion formed on the outer peripheral surface of the upper end of the upper pressure tube according to the first aspect and engaged with the first annular engagement protrusion. Is formed on the inner wall of the connecting pipe.

According to a ninth aspect of the present invention, the piston portion according to the first aspect and the piston rod are integrally formed.

The spray device according to claim 10 is provided with the piston portion according to claim 1 engaged with one end of the piston rod.

A spray device according to an eleventh aspect forms a waterproof portion having a steep slope on the outer peripheral surface of the liquid outlet of the fixed lid in the first aspect.

It is explanatory drawing which showed the cross-section of the conventional spray apparatus. It is an exploded view of the spray apparatus by this invention. It is explanatory drawing which showed the cross-section of the member of the spray apparatus disclosed to FIG. 2A. It is a perspective view of the spray device disclosed in FIG. 2A. It is explanatory drawing which showed operation | movement of the spray apparatus by this invention. It is another explanatory drawing which showed operation | movement of the spray apparatus by this invention. It is other explanatory drawing which showed operation | movement of the spray apparatus by this invention. It is explanatory drawing which showed other operation | movement of the spray apparatus by this invention. It is explanatory drawing which showed the structure of the spray apparatus by other embodiment. It is explanatory drawing which showed the structure of the spray apparatus by other embodiment. It is explanatory drawing which showed the structure of the spray apparatus by another embodiment. It is explanatory drawing which showed the cross-section of the spray apparatus by another embodiment.

  The present invention prevents the liquid that is the contents of the container from leaking in a state where the spray head is pressed, collects the liquid remaining in the nozzle without being discharged, prevents the liquid from dripping out, and Providing a spray device in which moisture does not flow into the container, and is provided with a partition plate having a hollow tube and having a through-hole formed at a central position, and a through-hole of the partition plate at the bottom end A cylinder formed with a storage groove having a liquid passage opening at the upper end, a lid body covering the liquid passage opening, and a backflow prevention rod passing through the through hole and connected to the lid body, A hollow tube body that is provided in the storage groove and reciprocates up and down to open and close the liquid passage opening and has a piston portion that abuts against the inner wall of the cylinder at one end. A piston rod that is freely movable, An elastic body through which the piston rod is inserted, a container cap having an opening through which the cylinder passes, a hollow tube body provided in the cylinder, and a fixed lid body through which the piston rod is inserted; An upper pressing tube that is inserted through the fixed lid and is connected to and communicates with the cylinder, and has an inner wall formed with an inner contact portion where the elastic body and the piston rod come into contact with each other. A liquid outlet is formed in the wall surface, a guide pipe communicating with the cylinder is formed at the lower end, a hollow piston inserted into and communicated with the upper pressure tube, and a nozzle connected to the upper pressure tube and communicated with the nozzle And having a connecting pipe at the lower end, and a hollow pressing head portion in which the piston is provided. In order to explain the structure and features of the spray device in detail, a specific example will be given and described below with reference to the drawings.

  As shown in FIGS. 2A and 2B, the spray device according to the present invention includes a cylinder 1, and the cylinder 1 is a tubular body having one end as an engagement end 11 and the other end as a suction end 12. In the embodiment, the diameter of the suction end 12 is narrower than that of the cylinder 1. An engaging portion 13 is formed on the outer peripheral surface of the engaging end 11, and a flange portion 14 is integrally formed at a position close to the engaging portion 13. A partition plate 15 is provided inside the suction end 12. A through hole 151 is formed at a central position of the partition plate 15.

  Inside the cylinder 1, a storage groove 16 is formed which communicates with the through hole 151 of the partition plate 15 at the bottom end and has a liquid passage port 17 at the upper end, and a backflow prevention rod 2 is provided in the storage groove 16. The backflow prevention rod 2 includes a lid 21. In the embodiment, the lid body 21 has a circular shape, covers the liquid passage port 17 at the upper end of the storage groove 16, reciprocates up and down, opens the liquid passage port 17 when moved upward, and moves downward. Close.

  The lid 21 is connected to the backflow prevention gutter 22 at the bottom surface. The backflow prevention rod 22 includes a first housing 221 and a second housing 222 that are provided via a plurality of elastic bodies 223 at intervals. The elastic body 223 has an action of attracting the lid body 21 by elasticity and preventing the lid body 21 from being detached from the liquid passage port 17. In the embodiment, the elastic body 223 has a circular shape.

  The second casing 222 passes through the through hole 151. Also. A tapered portion 224 is formed at one end of the second casing 222. Therefore, one end of the second casing 222 passes through the through hole 151 and is restricted by the tapered portion 224. Therefore, it does not come off from the through hole 151.

  A piston rod 3 is slidably provided in the cylinder 1. The piston rod 3 is a hollow tube, and forms a piston portion 31 at one end. In the embodiment, the piston rod 3 and the piston portion 31 are integrally formed. The piston part 31 contacts the inner wall of the cylinder 1.

  Further, a lower end step portion 32 is formed at a position close to the piston portion 31 on the outer peripheral surface of the piston rod 3, and an upper end step portion 33 is formed on the outer peripheral surface at the other end of the piston rod 3. Further, the elastic body 34 is inserted into the piston rod 3 from the upper end. The elastic body 34 has a function of returning the piston rod 3 to its original position by elasticity.

  As disclosed in FIGS. 2A and 2B, the cylinder 1 penetrates the container cap 4 from the upper end. An opening 41 is formed in the container cap 4, and a screw thread 42 is formed by screwing on the inner peripheral surface. The container cap 4 is attached by screwing a screw thread 42 to a screw thread formed on an outer peripheral surface of a mouth (not shown) of a bottle that is a liquid container. Further, the lower end of the container cap 4 comes into contact with the flange portion 14.

  The container cap 4 is connected to the fixed lid 5. The fixed lid 5 is a hollow tube, and the piston rod 3 penetrates through the inside thereof, and the lower end engages with the engagement end 11 of the cylinder 1.

  The fixed lid 5 has an upper end opening as a liquid outlet 51 and a lower end opening as a liquid inlet 52. A position limiting step 53 is formed on the inner peripheral surface of the liquid inlet 52. The piston rod 3 is inserted through the fixed lid 5, and the position limiting step portion 53 stops against the lower end step portion 32 of the piston rod 3. Further, a thread 54 is formed by screwing at a position close to the liquid inlet 52 on the inner peripheral surface of the fixed lid 5.

  Further, a protruding portion 55 protruding outward is formed on the outer peripheral surface of the fixed lid 5, and the protruding portion 55 engages with the engaging portion 13 of the cylinder 1.

  On the outer peripheral surface of the liquid outlet 51 of the fixed lid 5, a waterproof part 56 having an inclination angle with a high root and a steep outward slope is formed. The waterproof part 56 has an inclination angle having a steep slope. For this reason, water is prevented from flowing into the cylinder 1 from the outside, and the spray device has a waterproof effect.

  The upper pressing tube 6 is inserted through the fixed lid 5 from above. The upper pressing tube 6 is a hollow tube, and the lower end passes through the liquid outlet 51 of the fixed lid 5 and is connected to the cylinder 1, and communicates with the cylinder 1 to form a liquid passage.

  Further, the inner wall of the upper pressing pressure tube 6 protrudes toward the center portion to form an inner contact portion 61. The elastic body 34 and the upper end step portion 33 of the piston rod 3 are in contact with the internal contact portion 61. Furthermore, a screw thread 62 is formed at the lower end of the upper pressing tube 6 so as to be screwed into the inner peripheral surface and screwed into the screw thread 54 of the fixed lid 5. In addition, a first annular engagement protrusion 63 is formed on the outer peripheral surface at the upper end of the upper pressing pressure tube 6.

  A piston 7 is inserted through the upper pressing pressure tube 6. The piston 7 is hollow and communicates with the upper pressing tube 6. The piston 7 has a liquid outlet 71 formed in the wall surface. Further, a guide tube 72 communicating with the cylinder 1 is formed at the lower end of the piston 7.

  The upper pressing pressure tube 6 is connected to and communicates with the pressing pressure head portion 8. The pressing head portion 8 is hollow and includes a nozzle 81 extending outward. The pressing head portion 8 includes a connecting pipe 82 at the lower end. The connection pipe 82 has a second annular engagement protrusion 83 that engages with the first annular engagement protrusion 63 of the upper pressing pressure pipe 6 on the inner peripheral surface, and the piston 7 is provided in the pressing pressure head portion 8 from the upper end. .

  The structure of the spray device according to the present invention is as described above, and the appearance after assembly is as disclosed in FIG.

  4A to 4C disclose the operation of the spray device according to the present invention. When the pressing head 8 is pressed as disclosed in FIG. 4A, the upper pressing tube 6 moves downward by an amount corresponding to the range of S1. At the same time, the piston portion 31 of the piston rod 3 is stopped by the pressure with the inner wall of the cylinder 1. In this state, the pressing head 8 moves downward and the liquid outlet 71 of the piston 7 gradually communicates with the nozzle 81.

  When the pressing head portion 8 moves downward by an amount corresponding to the range of S 1 and comes into contact with the upper end of the piston 7, it is completely aligned with the liquid outlet 71 and the internal space of the nozzle 81. In this case, the lid body 21 of the backflow prevention rod 2 moves downward to close the liquid passage port 17.

  As shown in FIG. 4B, when the pressing head portion 8 is further pressed and moved downward by an amount corresponding to the range of S2, the pressing head portion 8 presses the upper pressing tube 6 to press the elastic body 34. The Next, when the thread 62 of the upper pressing tube 6 contacts the thread 54 of the fixed lid 5, the air in the cylinder 1 is discharged from the nozzle 81 by the piston portion 31 of the piston rod 3 compressing the space in the cylinder 1. While being discharged, the liquid carried by the air is also discharged from the nozzle 81.

  As shown in FIG. 4C, when the pressing head portion 8 returns to the original position, the upper pressing tube 6 is pushed upward by the urging force of the elastic body 34, and the piston portion 31 of the piston rod 3 is moved to the cylinder 1. Stopping by friction with the inner wall, the pressing head 8 and the upper pressing tube 6 continue to move upward. Next, the inner abutting portion 61 of the upper pressing tube 6 abuts on the upper end step portion 33 of the piston rod 3, and the piston rod 3 moves upward in conjunction with it. At the same time, the upper pressure pipe 6 closes the liquid outlet 71 of the piston 7.

  Finally, the lower end step portion 32 of the piston rod 3 is brought into contact with the position limiting step portion 53 of the fixed lid 5, and the upward movement stops and the pressing head portion 8 returns to the original position. In this case, the internal space of the cylinder 1 is expanded at the same time. Accordingly, the liquid flows from the through hole 151 to the storage groove 16 due to the pressure, the lid 21 is opened, and the liquid passage port 17 is gradually opened. The liquid passes through the backflow prevention gutter 2 and enters the cylinder 1 to prepare for the next operation of the pump.

  Further, when the pressing head unit 8 returns to the original position, the liquid outlet 71 is gradually closed, and the pressure in the internal space of the pressing head unit 8 gradually increases. For this reason, a vacuum suction force is generated, and an action of collecting the liquid remaining in the nozzle 81 occurs. Therefore, it is possible to prevent the liquid from remaining in the nozzle 81 and dripping outside.

  FIG. 5 discloses another operation of the spray device according to the present invention and its operation. That is, the spray device according to the present invention has a function of fixing the pressing head portion 8 and preventing liquid leakage and outflow of liquid to the outside. As disclosed in the drawing, when the pressing head portion 8 is pressed and passed through the ranges of S1 and S2, the pressing head portion 8 is rotated in the clockwise direction to reach the range of S3. In this case, the thread 62 of the upper pressing tube 6 is screwed into the thread 54 of the fixed lid 5 and fastened. Further, the backflow prevention rod 2 is pressed by the piston rod 3, and the storage groove 16 of the cylinder 1 is closed and sealed by the deformation of the elastic body 223. Therefore, leakage of the liquid is prevented.

  6A to 6C disclose a spray device according to another embodiment. As disclosed in the drawings, the elastic body 223 of the backflow prevention basket 2 may be other than the circular shape described above. In FIG. 6A, the elastic body 223 has a dogleg shape, and in FIG. 6B, it has a semicircular shape. Moreover, in FIG. 6C, a square is exhibited.

  FIG. 7 discloses another embodiment. As disclosed in the drawings, the piston 31 may be engaged with one end of the piston rod 3 in addition to integrally forming the piston portion 31 and the piston rod 3 at one end of the piston rod 3.

  The above is a preferred embodiment of the present invention, and does not limit the scope of the present invention. Accordingly, any change or modification that can be made by those skilled in the art, which is made within the spirit of the present invention and has an equivalent effect on the present invention, belongs to the scope of the claims of the present invention. And

DESCRIPTION OF SYMBOLS 1 Cylinder 11 Engagement end 12 Inhalation end 13 Engagement part 14 Ridge part 15 Partition plate 151 Through-hole 16 Storage groove 17 Liquid passage port 2 Backflow prevention gutter 200 Sprayer 201 Spray head 202 Container body 203 Piston 204 Liquid passage 21 Lid 22 Backflow prevention rod 221 First housing 222 Second housing 223 Elastic body 224 Tapered portion 3 Piston rod 31 Piston portion 32 Lower end step portion 33 Upper end step portion 34 Elastic body 4 Container cap 41 Opening portion 42 Thread 5 Fixing lid 51 Liquid outlet 52 Liquid inlet 53 Position limiting step 54 Thread 55 Projection
56 Waterproofing part 6 Upper pressing pressure pipe 61 Internal contact part 62 Thread 63 First annular engagement protrusion 7 Piston 71 Liquid outlet 72 Guide pipe 8 Pressure head part 81 Nozzle 82 Connection pipe 83 Second annular engagement protrusion

Claims (11)

A hollow tube with a partition plate with a through hole in the center, and a storage groove that communicates with the through hole of the partition plate at the bottom and uses the upper end as a liquid passage. Cylinder
A lid that covers the liquid passage opening; and a backflow prevention rod that passes through the through-hole and connects to the lid, and is provided in the storage groove to reciprocate up and down. A backflow preventer that opens the liquid passage and moves downward to close the liquid passage;
A hollow tube provided with a piston portion that abuts the inner wall of the cylinder at one end, and a piston rod slidably provided in the cylinder;
An elastic body that is inserted from the upper end of the piston rod to impart elasticity to the piston rod ;
An opening through which the cylinder passes is formed at the upper end, and a container cap for screwing the inner peripheral surface into the liquid container ;
A hollow tube provided inside the cylinder, the outer peripheral surface is formed with a protruding portion protruding outwardly to engage with the engaging portion of the cylinder, and the piston rod is inserted into the inside. A fixed lid,
A hollow tube that is inserted through the fixed lid, is connected to and communicates with the cylinder through the fixed lid , and the inner wall protrudes toward the center to form an internal contact portion. and a pressure pipe pushing the upper portion to the internal contact portion and the elastic body and the piston rod you contact,
A liquid outlet is formed in the wall surface, a guide pipe communicating with the cylinder is formed at a lower end, and a hollow piston is inserted into and communicated with the upper pressing pressure pipe;
It is connected to and communicates with the upper pressure pipe, and has a nozzle that extends outward, and a connection pipe at the lower end, and a hollow pressure head that houses the piston. A spray device characterized by. One end of the cylinder is an engagement end, and the other end is a suction end. An engagement portion is formed on the outer peripheral surface of the engagement end, and a flange portion is integrally formed at a position close to the engagement portion. The spray device according to claim 1 , wherein a diameter of the suction end is narrower than a diameter of the cylinder.   2. The spray device according to claim 1, wherein the backflow prevention rod is composed of a first housing and a second housing which are provided at intervals and are provided via a plurality of elastic bodies. The spray device according to claim 3 , wherein the plurality of elastic bodies are selected from any one of a circular shape, a dogleg shape, a semicircular shape, and a square shape. The spray device according to claim 3 , wherein a taper portion is formed at one end of the second casing, and one end of the second casing is engaged with a through hole of the partition plate. To form a lower stepped portion at a position close to the piston portion an outer peripheral surface of the piston rod, the upper end stepped on the outer peripheral surface of the other end of the piston rod, the inner contact portion of the pressure tube pushing upper abut Forming part ,
The fixed lid has an upper end opening as a liquid outlet and a lower end opening as a liquid inlet, and a position-limiting step portion with which the lower end step portion abuts is formed on the inner peripheral surface of the liquid inlet. The spray device according to claim 1. A screw thread is formed on the inner peripheral surface of the fixed lid in the vicinity of the liquid inlet, and a thread is formed on the inner peripheral surface of the lower end of the upper pressing tube. The spray device according to claim 1 , wherein a screw thread is formed to be screwed onto the screw thread .   A first annular engagement protrusion is formed on the outer peripheral surface of the upper end of the upper pressure tube, and a second annular engagement protrusion that engages with the first annular engagement protrusion is formed on the inner wall of the connection pipe. The spray device according to claim 1.   The spray device according to claim 1, wherein the piston portion and the piston rod are integrally formed.   The spray device according to claim 1, wherein the piston portion is provided to engage with one end of the piston rod. The spray device according to claim 1 , wherein a waterproof portion having a steep slope is formed on an outer peripheral surface of the liquid outlet of the fixed lid.

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