JP3203893U - Liquid ejection pressure head with water intrusion prevention function - Google Patents

Abstract

A liquid ejection pressing head having a water intrusion prevention function is provided. A cap 10 is provided. The cap 10 is provided in a container and is provided to close an opening of the container. The piston passes through the cap 10 in an axial direction and is provided in the cap 10. A cylinder 20, a suction pipe connected to the bottom end of the piston cylinder 20 in the axial direction, and a piston tube 40 whose part is accommodated in the piston cylinder 20 are provided. The piston tube 40 is reciprocated in the axial direction, and the top end of the piston tube 40 is provided so as to protrude from the closed top surface of the piston cylinder 20. A pressing head 50 provided at the top end of the tube 40 is provided. [Selection] Figure 2

Description

  The present invention relates to a liquid ejection pressing head, and more particularly to an original structure having a water intrusion prevention function and capable of handling various viscous liquids.

  Although it is common to place sticky liquids such as hand soaps and shampoos in containers such as bottles and cans used in daily life, the opening of conventional containers is usually closed with a lid to prevent liquid leakage However, in order to make it easy to take out the liquid in the container, a liquid discharge pressing head is provided at the opening of the container, and the user pushes it to discharge the liquid in the container. Therefore, it can be said that it is a very easy-to-use design without having to repeatedly open and close the lid. However, various liquid ejection press heads currently on the market have some drawbacks pointed out to users due to their structure.

  As shown in FIG. 6, the conventional liquid ejection pressing head includes a cap 80, which is provided in a container (not shown) and is provided so as to close the opening of the container. A piston cylinder 81 penetrating the cap 80 in the direction, a suction pipe 82 connected to the bottom end of the piston cylinder 81 in the axial direction, and a piston tube 83 in which the portion is accommodated in the piston cylinder 81 The bottom end of the piston tube 83 is tightly attached to the inner wall of the piston cylinder 81 and reciprocates in the axial direction with respect to the piston cylinder 81, and the top end of the piston tube 83 is the piston cylinder. A pressing head 84 that protrudes from the closed top surface of 81 and is provided at the top end of the piston tube 83. While the user moves the piston tube 83 with the pressing head 84 to reciprocate with respect to the piston cylinder 81, the piston cylinder 81 intermittently generates a negative pressure in the container. The liquid contained therein is sequentially flowed out to the piston tube 83 and the pressing head 84 through the suction pipe 82 and used. In order to reduce the volume or cost during transportation, to reduce costs, or when the user has not used it for a while, in order to avoid malfunction, the contractor further presses the screw hole 85 on the top surface of the piston cylinder 81. By providing the male thread section 86 at the bottom of the head 84, the male thread section 86 is tightened in the threaded hole 85, so that the distance between the pressing head 84 and the cap 80 is minimized, The position of the pressing head 84 is fixed to achieve the above-mentioned purpose. However, in the case of a shampoo or body soap, for example, when the user is taking a shower, the male thread section 86 is usually not tightened into the screw hole 85 so that it can be used easily. Scattered all over, and gradually flows into the container through the gap between the screw hole 85 and the piston tube 83, and the concentration of shampoo and body soap is gradually diluted, which may affect normal use. There is.

  Accordingly, a related contractor has improved the structure of the liquid ejection press head, and as shown in FIG. 7, a bush 87 protruding upward and vertically is provided on the bottom surface of the screw hole 85 of the above-described embodiment. The height of the horizontal plane 87 is set higher than the height of the horizontal plane of the cap 80, and the scattered water droplets flow only into the annular space between the bush 87 and the hole wall of the screw hole 85. Is higher than the height of the horizontal surface of the cap 80, and the overflowed water overflows to the end surface of the cap 80, but overflows to the bush 87 and does not flow into the container. It can be solved well.

  In addition, as shown in FIG. 8, the conventional liquid discharge pressure head provided with the bush 87 seems to have solved the problem of gradually diluting the liquid in the container by the conventional liquid discharge pressure head. In terms of structure, there are several points to be further improved. For example, the male thread section 86 of the pressing head 84 is provided on the outer wall, and it is felt that it looks bad from the user's eyes, and the material of the liquid ejection pressing head is mainly of hardness. Due to structural problems, the male thread section 86 made of low plastic and exposed to the outside tends to be damaged, and there is a limitation in the design change of the female thread section from the male thread section 86. Due to the joint 88 in the pressing head 84, as shown in FIG. 7, the joint 88 of the conventional liquid ejection pressing head is directly protruded to the bottom end of the pressing head 84, thereby increasing the internal space of the pressing head 84. In contrast, the annular space formed between the joint 88 and the pressing head 84 is too narrow, so when the pressing head 84 is molded, the thread mold is pressed. Since the female screw portion cannot be formed in the pressing head 84 and the female screw portion is not formed in the pressing head 84, the structure of the conventional liquid discharge pressing head must surely be further improved. There is.

  Therefore, it is the user's desire to develop a more ideal and practical original liquid ejection press head structure for the problems existing in the conventional structure as described above, It is also the goal and direction that related companies strive to develop.

  In view of this, the inventor has many years of experience in the manufacture and development and design of related products, and after conducting detailed design and careful evaluation of the above-mentioned goals, it is finally possible to obtain a practical invention. That is why.

  An object of the present invention is to provide a liquid ejection pressure head with a water intrusion prevention function, and the technical problem to be solved is a more ideal and practical structure of the original positioned pressure head. Is to develop.

  As a technical feature to solve the problems of the present invention, a cap is provided, the cap is provided in the container, and is provided to close the opening of the container. A piston cylinder provided in the cap, a suction pipe connected to the bottom end of the piston cylinder in the axial direction, and a piston tube whose part is accommodated in the piston cylinder are provided, and a piston is provided at the bottom end of the piston tube. The piston is tightly bonded to the inner wall of the piston cylinder and reciprocates in the axial direction with respect to the piston cylinder, so that the top end of the piston tube protrudes from the closed top surface of the piston cylinder. A pressing head provided at the top end of the piston tube, While moving the piston tube to reciprocate the piston with respect to the piston cylinder, the piston cylinder intermittently creates a negative pressure in the container, and the liquid in the container passes through the suction pipe, The piston tube and the pressing head are sequentially flowed out and used, and the top surface of the piston cylinder has a concave hole, and a tubular body projects from the bottom surface of the concave hole. The height of the horizontal surface of the tube is higher than the height of the horizontal surface of the top surface of the piston cylinder, and the inner wall of the tube is bonded to the outer wall of the piston tube, and an external thread is provided on the outer wall of the tube. The pressing head includes a pressing portion, and a protruding bush and a connecting portion are provided on the bottom surface of the pressing portion, and the connecting portion has a pressing portion with respect to the protruding length of the pressing portion. The height of the bush is shorter than the length of the protruding bush, and a female screw portion is provided on the inner wall of the bush within the range of the height difference, and the female screw portion is selectively connected to the male screw portion. The connecting portion is fitted to the end of the piston tube, and the pressing portion further communicates with the inside of the connecting portion. There is provided a liquid discharge press head having a water intrusion prevention function, characterized in that a liquid discharge flow path is provided.

  In contrast to the background art, the present invention based on such an original design can improve the manufacturing process by changing the connection structure between the press head and the piston cylinder, and has a good appearance and good product rate. There are practicality, inventive step, and favorable industrial applicability.

The partial three-dimensional exploded view of this invention. The fragmentary sectional view of this invention. The partial exploded sectional view of the present invention. The three-dimensional external view after attaching the cap to the press head of this invention. FIG. 5 is a cross-sectional view of FIG. 4 of the present invention. FIG. 6 is a three-dimensional external view of a conventional liquid ejection pressing head. FIG. 6 is a partial cross-sectional view of another conventional liquid ejection pressing head. Sectional drawing of the press head of FIG.

  1 to 3 show preferred embodiments of the liquid ejection pressure head with a water intrusion prevention function according to the present invention. However, these embodiments are used only for explanation, and at the time of filing a utility model. They are not limited to structures. A cap 10 is provided. The cap 10 is provided in a container (not shown) and is provided to close the opening of the container. The piston is provided in the cap 10 through the cap 10 in the axial direction. A cylinder 20, a suction pipe 30 that is connected to the bottom end of the piston cylinder 20 in the axial direction, and a piston tube 40 whose part is accommodated in the piston cylinder 20 are provided, and a piston 41 is provided at the bottom end of the piston tube 40. The piston 41 is tightly attached to the inner wall of the piston cylinder 20 and reciprocates in the axial direction with respect to the piston cylinder 20, and the top end of the piston tube 40 is connected to the closed top surface of the piston cylinder 20. The pressure provided at the top end of the piston tube 40 The piston cylinder 20 is intermittently placed in the container while the user moves the piston tube 40 with the pressing head 50 to reciprocate the piston 41 with respect to the piston cylinder 20. The water intrusion is characterized in that the liquid intrusion is characterized in that the pressure is generated, and the liquid contained in the container is sequentially flowed out to the piston tube 40 and the pressing head 50 through the suction pipe 30 and used. A liquid ejection pressing head with a prevention function is shown.

  A concave hole 21 is formed on the top surface of the piston cylinder 20, and a tubular body 22 protrudes from the bottom surface of the concave hole 21. The height of the horizontal surface of the tubular body 22 is the height of the horizontal surface of the top surface of the piston cylinder 20. The inner wall of the tube body 22 is bonded to the outer wall of the piston tube 40, and a male screw portion 23 is provided on the outer wall of the tube body 22.

  The pressing head 50 includes a pressing portion 51, and a bush 52 and a connecting portion 53 protruding coaxially are provided on the bottom surface of the pressing portion 51, and the connecting portion 53 is a length from which the pressing portion 51 protrudes. On the other hand, the height 52 is shorter than the length of the bush 52 protruding from the pressing portion 51, and a female screw portion 54 is provided on the inner wall of the bush 52 within the range of the height difference H. The female screw portion 54 is selectively screwed to the male screw portion 23, and is provided so as to position the pressing head 50 on the top surface of the piston cylinder 20 as shown in FIGS. 53 is fitted to the end of the piston tube 40, and in a preferred embodiment of the present invention, the connecting portion 53 is inserted into the end of the piston tube 40, Further leads into the connecting part 53 Liquid discharge flow path 55 is provided for.

In the present invention, as described above, the water intrusion preventing function of the conventional liquid ejection press head and the function of selectively connecting the press head 50 to the piston cylinder 20 are provided, as well as the press head 50 and the piston cylinder 20. Has the following advantages. That is, according to the present invention, the manufacturing process has been improved by shortening the protruding length of the connecting portion 53 and expanding the accommodating space in the bush 52 of the pressing head 50. The portion 54 is provided and selectively coupled with the male screw portion 23 of the tube body 22, so that the appearance of the press head 50 is not limited to some kind regardless of whether or not the pressing head 50 is connected to the end of the piston cylinder 20. The connection structure (the male screw section 86 in the conventional structure) is not exposed to the outside, and the liquid discharge pressure head has a perfect appearance, and at the same time the appearance of the liquid discharge pressure head is improved. By providing a female threaded portion 54 on the inner wall of the bushing 52, it is possible to connect the screw with an appropriate external force (such as screw tightening) during transportation or use. There is an advantage such as that avoids a negative impact on the function.
[Effect of device]

  In the “liquid ejection pressure head with water intrusion prevention function” posted in the present invention, the present invention is based on the conventional structure described in the above background art due to the original structure and technical features of the pressure head and the piston cylinder. On the other hand, by shortening the length of the connecting portion, it becomes possible to have a sufficient space for forming the female screw portion in the bush during the manufacturing process, and the connecting structure between the pressing head and the piston cylinder. As a technical means, it is possible to improve the manufacturing process, and there is practicality and inventive step that lead to an improvement in the appearance and the yield rate.

DESCRIPTION OF SYMBOLS 10 Cap 20 Piston cylinder 21 Recessed hole 22 Tube 23 Male thread part 30 Suction pipe 40 Piston tube 41 Piston 50 Press head 51 Press part 52 Bush 53 Connection part 54 Female thread part 55 Liquid discharge flow path 80 Cap 81 Piston cylinder 82 Suction pipe 83 Piston tube 84 Press head 85 Screw hole 86 Male thread section 87 Bush 88 Joint

Claims (2)

  A cap is provided on the container and is provided to close the opening of the container. The cap penetrates the cap in the axial direction, and the piston cylinder provided on the cap includes a piston cylinder in the axial direction. A suction pipe connected to the bottom end, comprising a piston tube whose part is housed in a piston cylinder, a piston is connected to the bottom end of the piston tube, and the piston is tightly bonded to the inner wall of the piston cylinder And a reciprocating movement in the axial direction with respect to the piston cylinder, and a top end of the piston tube is provided so as to protrude from a closed top surface of the piston cylinder, and a pressing head provided at the top end of the piston tube The piston tube is moved by moving the piston tube with the pressing head. While reciprocating with respect to the linder, the piston cylinder intermittently creates a negative pressure in the container, and the liquid in the container passes through the suction pipe, and then sequentially into the piston tube and the pressure head. The top surface of the piston cylinder has a concave hole, and a tubular body protrudes from the bottom surface of the concave cylinder. The height of the horizontal surface of the tubular body is the height of the piston cylinder. The inner wall of the tube body is bonded to the outer wall of the piston tube, the outer wall of the tube body is provided with a male screw portion, and the pressing head includes a pressing portion. The bottom of the pressing part is provided with a protruding bush and a connecting part, and the connecting part is shorter than the protruding part of the pressing part with respect to the protruding length of the pressing part. Arise An internal thread portion is provided on the inner wall of the bush within the range of the altitude difference, the internal thread portion is selectively screwed to the external thread portion, and the pressing head is positioned on the top surface of the piston cylinder. The connecting portion is fitted to the end of the piston tube, and the pressing portion is further provided with a liquid discharge passage for communicating with the connecting portion. A liquid ejection pressure head with a water intrusion prevention function.   2. The liquid ejection pressing head with a water intrusion prevention function according to claim 1, wherein the connecting portion is inserted into an end portion of the piston tube.

Images