KR102168991B1 - Device for squirting tear causing liquid - Google Patents

Abstract

The present invention proposes a tear fluid injector that provides an injection force based on the user's force. This injector includes: a main body 20 having a tear fluid storage space 24 for storing tear fluid therein; The inner cylinder 13 is supported to be slidably between the main body 20 and forms an inner space 14 containing the injected tear fluid, and is installed on the outside of the inner cylinder 13 to inject tear fluid. A slider 10 having a first valve V1 which is a one-way valve; A compression space inner wall 11 of the main body 20 communicating with the inner space 14 of the slider 10 and forming a tear fluid compression space 12 in which tear fluid is compressed by sliding of the slider 10; In addition, the second valve is installed on the opposite side of the slider in the compression space 12 and is a one-way valve through which tear fluid flows only from the tear fluid storage space 24 to the tear fluid compression space. The slider 10 is elastically supported at the top dead center position by an elastic member interposed between the main body 20 and the top dead center position is regulated by a part of the main body 20. Further, the first valve V1 and the second valve V2 are opened by the movement of the high pressure tear fluid as the slider 10 slides and the compression space 12 is reduced.

Description

Device for squirting tear causing liquid}

The present invention relates to a tear fluid injector, and more particularly, to a tear fluid injector having a compact appearance without using explosive substances such as gunpowder.

For example, it can be said that most of the tear spray injectors used for self-defense use the explosive power of gunpowder. And as one of the preceding patent documents, according to Korean Patent No. 10-1563114, it was proposed by the applicant to be configured to spray tear fluid to a distance based only on the pumping force by manual operation without using gunpowder. There is a bar.

However, according to these prior patents, it can be said that the tear fluid injector has a pistol shape and has a considerable disadvantage. And it is configured so that tear fluid can be fired by pulling the trigger by the appearance of a pistol. Since it is based on the appearance of the pistol as described above, it must have an internal structure in which tear fluid can be sprayed corresponding to the appearance.

Therefore, when designing a structure necessary for spraying a necessary tear fluid internally while having an external shape corresponding to the winding shape, there is a disadvantage that the structure is unnecessarily complicated due to the external shape. And it is also true that the tear spray according to the prior patent document corresponds to the size of a pistol and is bulky, causing inconvenience in portability and use.

An object of the present invention is to provide a tear fluid injector capable of injecting tear fluid based on a user's manual pumping force.

Another object of the present invention can be said to be to provide a volumetrically compact tear fluid sprayer by having the simplest cylindrical shape.

Another object of the present invention is to provide a tear fluid injector configured to simplify the internal configuration as much as possible.

The tear fluid injector of the present invention; A main body having a tear fluid storage unit for storing tear fluid therein; A slider having an inner cylinder that is supported to be slidably between the main body and forms an inner space containing the injected tear fluid, and a first valve that is a one-way valve installed outside the inner cylinder to inject tear fluid; An inner wall of the compression space of the main body communicating with the inner space of the slider and defining a tear fluid compression space in which tear fluid is compressed by sliding of the slider; The second valve is installed on the opposite side of the slider in the compression space, and is a one-way valve through which tear fluid flows only from the tear fluid storage unit to the tear fluid compression space.

Here, the slider is elastically supported to the top dead center position by an elastic member interposed between the main body and the top dead center position is regulated by a part of the main body. In addition, the first valve and the second valve are opened by the movement of the high-pressure tear fluid as the slider slides and the compression space is reduced, so that the tear fluid can be moved and sprayed.

In addition, the present invention may further include a third valve, which is a one-way valve installed so as to introduce outside air into the storage space by lowering the pressure of the storage space of the main body.

According to another embodiment of the present invention, the first valve of the slider includes a nozzle for injecting tear fluid, and the nozzle is installed at a right angle to the moving direction of the slider. And the nozzle is installed inside the long hole formed in the upper part of the main body, the top dead center of the slider is a tear fluid sprayer determined by the nozzle contacting the ceiling of the long hole.

According to the configuration of the present invention as described above, it is possible to form a cylindrical structure as a whole, and it is expected that it will be possible to implement a tear fluid sprayer having a compact configuration as a whole. In addition, since the internal configuration including each valve is substantially simplified as much as possible, the effect of reducing component parts, improving productivity, and reducing production costs is also expected.

In addition, the tear fluid injector of the present invention substantially injects tear fluid based on a pumping force applied by a person without requiring a separate driving source or gunpowder. Therefore, it is not only possible to secure the reliability of product performance as much as possible, but also various advantages based on this will be expected.

1 is an exemplary perspective view of the present invention tear fluid injector.
Figure 2 is an exemplary cross-sectional view of the present invention tear fluid injector.
Figure 3 is a partial cut-away perspective view of the present invention tear spray.

Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

As shown in Figure 1, the tear fluid injector of the present invention is installed to be slidable on one side of the main body 20 storing the tear fluid and the main body 20, while moving in the direction of decreasing the volume, the nozzle 19 It includes a slider 10 for spraying tear fluid through. In addition, a lid 4 is coupled to the main body 10 to open and close the upper portion of the main body 20 for spraying tear fluid.

The slider 10 is installed to move up and down in the longitudinal direction on one side of the body 10. The slider 10 has a cylindrical shape (cylindrical body) provided with an internal space 14 through which tear fluid can flow. The cylindrical body 13 of the slider 10 or the lower portion 10A of the slider 10 is tightly attached to the inner wall 11 of the compression space of the tear fluid compression space 12 formed in the longitudinal direction from one side of the body 20 It is inserted so that, for example, a sealing ring (Oa) made of rubber material for sealing may be interposed therebetween. And the inner space 14 of the slider 10 and the tear fluid compression space 12 are in communication with each other.

Therefore, when the slider 10 is pressed and moved downward, the tear fluid compression space 12 is substantially reduced, so that the tear fluid in the inner space 14 and the compression space 12 is the inner space 14 and the compression space. (12) It receives a compressive force within. The tear fluid being compressed in this way moves in the direction to go out through the first valve V1 installed at the upper end of the inner space 14.

Here, as described above, the first valve V1 injects tear fluid forward through the nozzle 19 when the pressure of the tear fluid in the compression space 12 and the internal space 14 increases, and the compression space 12 ) And when the pressure of the tear fluid in the inner space 14 decreases, the injection of tear fluid is stopped. That is, it is a one-way valve capable of injecting tear fluid to the outside of the tear fluid injector in a state of high pressure of tear fluid.

To summarize the configuration related to the slider 10, an internal space 14 is formed inside the slider 10, and the lower part of the slider 10 is inside the compression space 12 made between the main body 20 It will slide. In addition, the slider 10 of the present invention is elastically supported so as to always face upward (to prevent compression of the tear fluid), for example, a coil spring outside the inner cylinder 13 forming the inner space 14 (S) is installed.

The upper end of the coil spring (S) is raised and supported by the lower end of the inner side of the slider 10, and the lower end of the coil spring (S) is supported on one inner side of the body (20). Therefore, when the external force is removed, the slider 10 always moves upward and is located at the top dead center. The nozzle 19 extending forward of the slider 10 can eject tear fluid by opening and closing the first valve B1.

Referring to the enlarged portion of FIG. 1, the first valve V1 blocks the valve body Va having the nozzle 19 formed in the front and the connection path 19a connected to the above-described internal space 14. It is composed of a ball valve (Ba), and a spring (Sa) pushing the ball valve (Ba) in a direction blocking the connection path (19a). Therefore, when no external force acts, the spring Sa pushes the ball valve Ba to maintain the state in which the connection path 19a is blocked.

In this state, when the slider 10 is pressed and moved downward, the volume of the inner space 14 and the compression space 12 decreases, and the tear fluid in the inner space becomes a high pressure state. The tear fluid in this high-pressure state pressurizes the ball valve Ba of the first valve V1 so that the spring Sa is pushed outward. In this case, the ball valve (Ba) opens the connection path (19a) so that the tear fluid comes out.

Since there is a gap between the ball valve (Ba) and the inner space of the valve body (V1), or a groove along the flow direction is formed on the inner wall of the valve body (Va), when only the connection path (19a) is opened, the tear fluid is discharged from the nozzle ( It is sprayed to the outside through 19). At this time, it is natural that the force that the tear fluid advances is substantially proportional to the force pressing the slider 10.

And, as can be seen from FIG. 1, the top dead center of the slider 10 is determined by the nozzle 19. That is, since the nozzle 19 installed in front of the slider 10 is assembled inside the long hole 22 molded on the top of the main body 20, the nozzle 19 rises and the long hole 22 When contacting the ceiling portion, the slider 10 does not rise any more and maintains the top dead center state. The bottom dead center of the slider 10 may be determined by a connection relationship between the nozzle 19 and the long hole 22, or may be determined by the length of the inner cylinder 13.

In addition, it can be seen that the tear fluid storage space 24 is molded inside the main body 20, and in the illustrated embodiment, it is provided partially parallel to the slider 10 described above. This tear fluid storage space 24 is designed to communicate with the tear fluid compression space 12 described above. That is, it is molded to supply the tear fluid from the tear fluid storage space 24 to the tear fluid compression space 12, and the second valve V2 is installed on this path.

The second valve (V2) of the present invention is also a one-way valve that allows only one-way flow of tear fluid (from the tear fluid storage space 24 to the tear fluid compression space 12). That is, it is normally closed (a state in which no external force is applied), but when an external force is applied, the tear fluid can move from the tear fluid storage space 24 to the compression space 12. Specifically, when the slider 10 moves upward from the bottom dead center, since the volume of the compression space 12 expands, the pressure becomes low, compressing the spring Sb, and raising the ball valve Bb.

Due to the rise of the ball valve (Bb), the tear fluid from the tear fluid storage space (24) enters the valve body (Vb) through the connection path (32), and then enters the compression space (12) through the outlet (34). do. And when the slider 10 reaches the top dead center, the ball valve Bb is in close contact with the connection path 32 by the spring Sb to close it.

Next, the third valve V3 will be described. The third valve V3 is installed to allow external air to flow into the inside of the tear fluid storage space 24 as the tear fluid in the tear fluid storage space 24 decreases. As the tear fluid is supplied to the tear fluid compression space 12, when the pressure in the tear fluid storage space 24 is lowered, the ball valve Bc moves upward while overcoming the force of the spring Sc.

Accordingly, as the external connection portion 42 is opened, outside air flows into the inner space of the valve body Vc. This principle is the same as described in the first valve V1, and there is sufficient clearance between the ball valve Bc and the inner wall of the valve body Vc, or a groove is formed in the inner wall of the valve body Vc, and the external connection part It is based on making 42 and the inner outlet 44 communicate with each other. In addition, this configuration and operation are the same for the second valve V2 described above.

Therefore, when the ball valve Bc is opened, outside air enters the tear fluid storage space 24 through the inner outlet 44 from the external connector 42. When the tear fluid in the tear fluid storage space 24 is exhausted through the above process, for example, by opening the cap 28 using a screw coupling method, it will be possible to further store (replenish) tear fluid.

The embodiments shown in FIGS. 1 to 3 are merely exemplary configurations for explaining the present invention, and it is natural that various modifications may be made within the basic technical idea of the present invention described above. For example, in the illustrated embodiment, the top dead center of the slider 10 supported upward by the spring S is configured to be limited by the nozzle 19, but it is obvious that this cannot be limited. It goes without saying that it is possible to limit the upper limit position of the slider 10 by using, for example, a peripheral configuration related to the slider 10.

In addition, in the illustrated embodiment, the nozzle 19 is installed to form a right angle with the slider 10, but it is obvious that the nozzle 19 cannot be limited thereto. For example, the nozzle 19 may be installed so that tear fluid can be sprayed in the same direction as the slider 10.

In the above description, the inner cylinder 13 of the slider 10 is configured to slide in close contact with the inner wall 11 for forming the compression space 12 of the main body 10, but may not be limited thereto. . The sliding motion of the slider 10 is implemented by forming, for example, at least a portion 10B of the outer casing forming the outside of the slider 10 so that it can be accommodated in at least a portion 20B of the main body 10. Of course it would be possible.

10 ..... slider
10A ..... under the slider
11 ..... inner wall of compression space
12 ..... Tear fluid compression space
12a ..... with connection
13 .... inner cylinder
14 ..... Internal space
24 ..... tear fluid storage
32 ..... by connection
42 ..... External connection
Ba, Bb, Bc ..... Ball valve
V1, V2, V3 ..... valve
Va, Vb, Vc ..... valve body

Claims (3)

A main body 20 having a tear fluid storage space 24 for storing tear fluid; And
An inner cylindrical body 13 that is supported to be slidable on one side of the main body 20 and forms an inner space 14 containing the injected tear fluid, and one direction connected to the inner space 14 and injecting tear fluid. Consisting of a slider 10 having a first valve V1 which is a valve;
The main body 20 communicates with the inner space 14 of the slider 10 and includes a tear fluid compression space 12 in which tear fluid is compressed when the slider 10 is pressed, and a storage space 24 of the main body 10. A third valve (V3), which is a one-way valve installed so as to introduce outside air into the storage space (24) by lowering the pressure;
It is installed on the opposite side of the slider 10 in the compression space 12, and based on the pressure difference between the compression space 12 and the tear fluid storage space 24, only the tear fluid from the tear fluid storage space 24 to the tear fluid compression space A second valve V2 which is a flowing one-way valve is installed;
The slider 10 is elastically supported at a top dead center position by an elastic member interposed between the main body 20 and the main body 20;
The first valve of the slider 10 includes a nozzle 19 for injecting tear fluid, and the nozzle 19 is installed at a right angle to the moving direction of the slider 10, and a long hole formed on the upper part of the main body 20 ( 22) The nozzle 19 is installed inside so that the top dead center of the slider is determined by the nozzle 19 contacting the ceiling of the long hole 32;
The first valve (V1), the second valve (V2), and the third valve (V3) are opened by the movement of the tear fluid as the slider 10 slides and the compression space 12 is reduced. Sandblast.



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