Abstract:
A portable self-defense spray to protect a person from danger under an emergency situation is provided. The compressive-spray structure includes a compact case manufactured in various designs by using a flexible long-length filling tube filled with the CN solution. In a typical spray structure, CN solution is always sprayed at only a right position, the filled CN solution is not completely exhausted, and the design of the self-defense spray is limited. The filling tube to receive the CN solution is provided in the case without being twisted. The vacuum pump operating member cooperating with the button member having the spray port is installed at one side of the filing tube. A cap is provided at an opposite side of the filling tube for the sealing purpose. Vacuum is generated with the pressing of the button member, so that the CN solution in the filling tube is sprayed due to compression.

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application claims the benefit under 35 U.S.C. §119(a) of a Korean patent application filed on Dec. 14, 2012 in the Korean Intellectual Property Office and assigned Serial No. 10-2012-0146356, the entire disclosure of which is hereby incorporated by reference. 
     TECHNICAL FIELD 
     The present disclosure relates to a portable self-defense spray capable of protecting a person from danger under an emergency situation. More particularly, the present disclosure relates to a structure of spraying CN solution by compressive force, in which a compact case can be manufactured in various designs by using a filling tube including a silicon material and the CN solution can be sprayed in any direction based on compressive spraying resulting from vacuum. 
     BACKGROUND 
     Recently, when a person is in danger such as kidnapping and robbery, the person has reported the danger to the policy by using a cellular phone carried by the person. However, when the danger is reported by using the cellular phone, the person cannot rapidly manipulate the cellular phone for the report of the danger to the policy, and cannot rapidly cope with the danger to be personally applied to the person. In addition, the person has no countermeasure against the danger to be applied until the policy reaches the site after the police has been reported and dispatched. 
     The dangerous situation more seriously happens to women, which are more easily exposed to crimes, than men. 
     Accordingly, many portable self-protection articles have been provided. Among them, a self-defense spray has been mainly used to rapidly cope with the dangerous situation due to a small size, portability, and simple operation. 
     The self-defense spray has a structure of spraying CN solution, which is received in a receiving part provided in a case, to a spray port through an introduction tube, which is provided perpendicularly to the receiving part, as a button is pressed. 
     However, the self-defense spray has following disadvantages. Since most introduction tubes are separated from a bottom surface to some degree without completely making contact with the bottom surface in order to smoothly introduce the CN solution received in the receiving part, the CN solution remains on the bottom surface. In addition, when the spray is inclined for use, the CN solution is not smoothly introduced into the filling tube provided perpendicularly to the receiving part, so that the spray is not actually used. 
     Therefore, according to Korean Patent Registration No. 10-1078154 registered after being applied by an applicant of the present disclosure in order to improve the above problem, a case provided at the front portion thereof with a spray port includes a storage vessel filled with CN solution and having a rubber packing and the spray port having a vacuum pump operating member, so that the CN solution may be sprayed in any direction through a vacuum pump scheme if a press member is pressed. 
     However, since the case has a structure in which the storage vessel to receive the CN solution and the vacuum pump operating member are aligned in line with the spray port, the shapes of the self-defense spray are not various, but limited and crude, so that the user has resistance against the use of the spray. 
     The above information is presented as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with regard to the present disclosure. 
     SUMMARY 
     Aspects of the present disclosure are to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present disclosure is to provide a self-defense spray which can be manufactured in various designs in compact size and can be sprayed received CN solution in any direction without residual CN solution. 
     According to an aspect of the present disclosure, a filling tube having a long length and including a flexible material such as silicon or a rubber material so that the filling tube is freely bent to receive CN solution in a case is guided so that the filling tube is not twisted. A vacuum pump operating member is installed at one side of the filling tube to spray the CN solution based on compression resulting from the vacuum pump as a button member having a spray port is pressed, and a filling cap is provided at an opposite side of the filling tube for the purpose of filling the CN solution. Accordingly, if the button is pressed, the filling tube is compressed through the vacuum pump operation, so that the filled CN solution is sprayed through the spray port. 
     According to another aspect of the present disclosure, when a coil spring is installed in the filling tube to guide the filling tube so that the filling tube is not twisted in the case, the filling tube is prevented from being bent, so that the filled CN solution is smoothly sprayed. 
     According to another aspect of the present disclosure, the CN solution is filled in the filling tube and sprayed through a compressive scheme, so that the CN solution can be sprayed in any direction of up, down, left and right and the filled CN solution can be sprayed without the residual amount. Accordingly, the waste of the CN solution can be reduced. In addition, the self-defense spray can be designed in a compact size and various shapes, so that the product quality can be improved and the incompatibility can be reduced. Accordingly, the product value can be raised. 
     Other aspects, advantages, and salient features of the disclosure will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses various embodiments of the present disclosure 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other aspects, features, and advantages of certain embodiments of the present disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which: 
         FIG. 1  is a perspective view showing an outer appearance of a self-defense spray according to an embodiment of the present disclosure; 
         FIG. 2  is an assembling perspective view showing the spray structure of the self-defense spray according to an embodiment of the present disclosure; 
         FIG. 3  is an assembling sectional view showing the self-defense spray according to an embodiment of the present disclosure; 
         FIG. 4  is an exploded perspective view showing the structure of a vacuum pump operating member to generate vacuum according to an embodiment of the present disclosure; 
         FIG. 5  shows sectional views of the spray structure of the self-defense spray according to an embodiment of the present disclosure; 
         FIG. 6  is a perspective view showing a cap fitted around a spray port according to an embodiment of the present disclosure; 
         FIG. 7  is a sectional view showing another structure of a self-defense spray according to an embodiment of the present disclosure; 
         FIG. 8  is a sectional view showing a self-defense spray according to an embodiment of the present disclosure; and 
         FIG. 9  is a sectional view showing a self-defense spray based on a compression spray scheme according to an embodiment of the present disclosure. 
     
    
    
     The same reference numerals are used to represent the same elements throughout the drawings. 
     DETAILED DESCRIPTION 
     The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness. 
     The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents. 
     It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “a component surface” includes reference to one or more of such surfaces. 
     Referring to  FIGS. 1 to 5 , in a self-defense spray according to various embodiments of the present disclosure, a filling tube  30 , which is filled with CN solution and includes a long tube, is installed in a case  10  prepared as a separable assembly, a vacuum pump operating member  20  cooperating with a button member  40  having a spray port  41  is installed at one side of the filling tube  30 , and a cap  50  is installed at an opposite side of the filling tube  30  so that the cap  50  is sealed. Accordingly, a vacuum state is formed through a pressing operation of the button member  40  so that the filling tube  30  is compressed by compressive force to make the filled CN solution sprayed. 
     In this case, the filling tube  30  includes a flexible material such as rubber or silicon, so that the filling tube  30  may be freely bent. The filling tube  30  has a long tube so that the CN solution is sufficiently filled therein. The filling tube  30  includes a rubber material or a silicon material so that the filling tube  30  may be freely bent. Accordingly, the self-defense spray may be manufactured in various shapes in compact size so that the self-defense spray may be portable. 
       FIG. 6  is a perspective view showing a cap fitted around a spray port according to an embodiment of the present disclosure,  FIG. 7  is a sectional view showing another structure of a self-defense spray according to an embodiment of the present disclosure,  FIG. 8  is a sectional view showing a self-defense spray according to an embodiment of the present disclosure, and  FIG. 9  is a sectional view showing a self-defense spray based on a compression spray scheme according to an embodiment of the present disclosure. 
     Meanwhile, in order to prevent the filling tube  30  having the CN solution therein with a sufficiently long length from being twisted in the compact case  10 , a protrusion part  11  is formed at a bending portion of the filling tube  30 , so that the protrusion part  11  guides the filling tube  30  to prevent the filling tube  30  from being twisted. 
     In addition, in order to prevent the filling tube  30  from being clogged as the filling tube  30  is guided by the protrusion part  11  and bent, a coil spring  31  is provided in a portion of the filling tube  30  positioned corresponding to the protrusion part  11  and bent, so that the filled CN solution may be smoothly sprayed. 
     In this case, the vacuum pump operating member  20 , which is installed at one side of the filling tube  30  to form a vacuum state, comprises a tube perforated at the center thereof, is provided at an inner upper portion thereof with a fixing tube  29  and at a lower portion thereof with an introduction tube  27 . A supply tube  22  having a supply passage  23  communicating with an introduction hole  23   a  formed through a lower portion of the fixing tube  29  is axially installed in at the center of the fixing tube  29  so that the CN solution is supplied to the spray port  41  formed in the button member  40 . An operating tube  21  is installed at a portion of the supply tube  22  in which the supply passage  23  is formed. The operating tube  21  is positioned at the upper portion of the vacuum pump operating member  20 . A spring  26  is interposed between the operating tube  21  and the vacuum pump operating member  20  so that the button member  40  may be repeatedly pressed. 
     The supply tube  22 , which is axially formed at the center of the fixing tube  29 , includes a locking rim  24  which is formed at a lower end having the introduction hole  23   a  communicating with the supply passage  23  to tightly make contact with the inner wall surface of the vacuum pump operating member  20  and provided at an outer circumferential surface thereof with grooves  24   a  spaced apart from each other by a predetermined interval. The locking frame  24  is provided at the lower end thereof with a guide rod  25  fitted into the center of the introduction tube  27  formed at the lower portion of the vacuum pump operating member  20  to perform a guide operation, so that the supply tube  22  may perform a stable pumping operation. A packing  28  is positioned between the upper portion of the locking rim  24  and the fixing tube  29  so that the introduction hole  23   a  communicating with the supply passage  23  is sealed. Accordingly, if the button member  40  is pressed, vacuum is formed in the supply tube  22  so that the packing  28  is fixed by the vacuum while the sealed introduction hole  23   a  is open. Accordingly, the filling tube  30  is compressed due to the vacuum so that the CN solution is sprayed. 
     In this case, the packing  28  for sealing, the supply tube  22 , and the introduction tube  27  may be installed inside the vacuum pump operating member  20  by the fixing tube  29  installed at the inner upper portion of the vacuum pump operating member  20 . After the introduction tube  27 , the supply tube  22 , and the packing  28  are sequentially installed in the vacuum pump operating member  20  including a tube, the fixing tube  29  is axially installed in the supply tube  22 , so that the fixing tube  29  is fixedly coupled with the vacuum pump operating member  20 . 
     Therefore, if the button member  40  is pressed, the operating tube  21  cooperating with the button member  40  pumps up and down by the elastic of the spring  26  above the vacuum pump operating member  20 . In this case, when the button member  40  is pressed, the operating tube  21  is pressed while the supply tube  22  axially installed in the fixing tube  29  is pressed, so that the pumping operation may be performed. 
     In addition, an inclined surface  24   b  is formed on a top surface of the locking rim  24  formed under the introduction hole  23   a  communicating with the upward-protruding supply passage  23  of the supply tube  223 , and an inclined surface the same as the inclines surface  24   b  is formed at the inner wall of the packing  28  positioned at the top surface of the locking rim  24  and fitted to seal the introduction hole  23   a . Therefore, as the supply tube  22  is pressed by the button member  40 , the pumping operation is performed so that a vacuum pressure is generated. In this case, the packing  28 , which is in the floating state, is stopped. In this case, as the supply tube  22  is more pressed, the inclined surface  24   b  is spaced apart from the corresponding inclined surface of the packing  28  which is engaged with the inclined surface. In this case, the introduction hole  23   a  is open so that the CN solution is introduced into the supply passage  23 . 
     In this case, the CN solution may be filled in the filling tube  30 , so that the filling tube  30  may be re-used several times. 
     To this end, if it is determined that the CN solution is completely exhausted by separating the cap  50  installed at an opposite side of the filling tube  30  to clog the opposite side of the filling tube  30 , the opposite side of the filling tube  30  having no cap  50  is inserted into an additional container to receive the CN solution and a pumping operation is performed by consecutively pressing the button member  40 . In this case, vacuum is generated from the vacuum pump operating member  20 , so that the CN solution received in the additional container is automatically sucked into the filling tube  30  by the compressive force, so the filling tube is filled with the CN solution. 
     Further, in order to fill the CN solution in the state that the cap  50  is not separated, the cap ( 50 ) includes a tube having the form of a through hole, and has one side formed therein with a coupling tube  50   a  communicating with the filling tube  30  and an opposite side formed at an inner wall surface thereof with a thread so that a fastening member  51  having a thread is screwed with the inner wall surface from the outside to seal and finish the cap  50 . Accordingly, as the fastening member  51  is open/closed through the screw-fastening scheme, the CN solution can be easily filled. 
     In addition, a fluid passage hole may be formed in one side of the fastening member  51 , and the fastening member  51  is not completely separated from the cap  50 , but separated to the extent that the fluid passage hole is exposed through the screw-fastening adjustment, so that the CN solution may be easily filled. 
     Further, a cap  60  is fitted around the spray port  41  to prevent the CN solution from being sprayed as the button member  40  is randomly pressed. 
     While the present disclosure has been shown and described with reference to various embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents.