JPH04102278U - Push-button injection device with stop-tip jet - Google Patents

Abstract

(57) [Summary] [Purpose] In conventional push-button injection devices, the tip of the protruding rod-like part of the ejection beak of the injection head is closed with an elastic cap when not in use and is open when in use. The opening part was prone to wear and tear, but the bellow-shaped elastic cap placed around the support part of the push button type injection device with the tip stop type jet of this invention reduces the wear and tear of the elastic cap itself, and also reduces wear when not in use. This is to eliminate leakage from the injection port. [Structure] An elastic cap is arranged around the support shaft of the push-button injection head, and the opening at the tip of the elastic cap and the part of the plug at the tip of the support shaft can be opened and closed. At the same time, when not in operation, the small diameter part provided in the bellows-like part is in contact with the outer peripheral surface of the protrusion support shaft, and when in operation, the elastic cap part expands and expands, so that the spray can be sprayed from the opening of the elastic cap with little resistance. This is a push-button type injection device with a tip stop type nozzle.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a push-button injection device, and particularly to a push-button injection device having a stop-type injection head. This invention relates to an injector.

0002

[Conventional technology]

In conventional push-button injection devices, the protruding rod-shaped part of the jet beak part of the flow path inside the jet head An elastic cap at the tip closes when not in use and opens when in use. A device that squirts the contents of the container from the container has been used.

0003

[Problem that the idea aims to solve]

However, with conventional push-button injection devices that have a stop-type jet head, As the frequency increases, the opening at the tip of the elastic cap may become worn or damaged. to ensure that the opening part maintains the tip stop function when not in use. We have struggled to come up with countermeasures for this problem.

0004

[Means to solve the problem]

Next, the specific configuration of the present invention, which is a means to solve the above problem, is a push button. A jet fluid flow path is provided inside the jet head, and a protrusion is provided at the center of the outlet of the flow path. A plug support is provided, a plug portion is provided at the tip of the plug support, and a plug portion is attached to the plug support. The end opening of the elastic cap can be fitted into or removed from the end opening, and the protruding plug A part of the inner circumferential surface of the intermediate portion of the elastic cap can be moved into and out of contact with the circumferential surface of the support. This is a push-button injection device with a stop-type nozzle.

[0005]

【Example】

Figure 1 shows an embodiment of the push-button injection device according to the present invention. The detailed configuration is explained according to Figure 1 as a push-button jet head. The tip of the outflow pipe 4 on the container body side of the injection container is connected to the inlet portion 3 of the injection fluid flow path in section 1. a protrusion plug support provided at the center of the outlet portion 5 of the jetting fluid flow path 2; Attach the base of the shaft 6 to the push button type injection head 1, and attach a tongue around the protrusion support shaft 6. --shaped elastic cap 7 is disposed between the elastic cap 7 and the protrusion support shaft 6. A space part with a desired spacing is formed in the elastic cap 7, and a small diameter part 8 is formed in a part of the elastic cap 7. When the elastic cap 7 is not in operation, the small diameter portion 8 of the elastic cap 7 contacts the circumferential surface of the protrusion support shaft 6. Therefore, when the small diameter portion of the elastic cap 7 separates from the periphery of the protrusion support shaft 6 during operation, Also, remove the opening 10 at the tip of the elastic cap 7 from the protruding part and pour out the contents. In FIG. 1, when the elastic cap 7 is inactive, the tip of the elastic cap 7 is opened. The mouth part is closed by the protruding part, and the base of the elastic cap 7 is made thick. The thick part 11 is formed as an outlet of the injection fluid flow path 2 of the push button injection head 1. It is inserted into the large-diameter portion 9 that will become the thick portion, and hits the inclined cross-sectional portion provided in the thick portion 11. Push the cylindrical slip-out prevention member 12, which has an inclined portion at least on one end, so that the A tip stop type jet disposed between a button type jet head 1 and an elastic cap 7. It is a push button type injection device with a head. Figure 2 shows the opening of the elastic cap coming off the protrusion and moving forward in the closed state shown in Figure 1. The contents of the pressurized fluid inside the container are lowered in pressure and the volume is increased. The jet shown in FIG. 1 shows a state in which the jet expands and jets out from the opening of the elastic cap. This shows the operating status of the device.

[0006]

[Effect]

To describe the operation of the push button type injection device of the present invention, the push button is pressed. As a result, the contents of the container in the state of pressurized fluid change from the non-operating state to the operating state. It reaches the nozzle part of the jet head, expands and expands the elastic cap part, Separate the opening at the tip of the elastic cap from the protrusion and also enlarge the small diameter part. By causing the contents of the container to be in the form of pressurized fluid, there is no particular resistance to the flow path. It is possible to spray the liquid to the outside from the opening of the elastic cap, which serves as the injection port, without being exposed to water. It is. Also, by releasing the pressure from the push button, the pressure inside the elastic cap increases. Atmospheric pressure is close to that of the elastic cap, and as a result, the elastic cap contracts, causing the elastic cap to close to the stopper. The opening at the tip of the elastic cap will fit into the opening, and the small diameter part of the elastic cap will fit into the protrusion. It contracts to the point where it contacts the outer circumferential surface of the support shaft, and the part of the injection head near the injection port This will ensure a closed state. In addition, the base of the elastic cap is attached to the large diameter part of the push button type jet head. Therefore, the fluid can flow out with almost no resistance.

[0007]

【effect】

Since the present invention has the above-mentioned structure and function, it will emit water when it is not in operation. Able to securely maintain a closed state in the mouth area and surrounding areas, and when activated. has the effect of reducing the resistance in the outflow channel and allowing injection to be performed without weakening the jet pressure. There is.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of the injection head of the injection device according to the present invention when it is not in operation.

FIG. 2 is a longitudinal sectional view of the injection head of the injection device of FIG. 1 during operation;

[Explanation of symbols]

1 Push-button injection head 2 Injected fluid channel 3 Inlet portion 4 Outflow pipe 5 Outlet portion 6 Plug support shaft 7 Bellow-shaped elastic cap 8 Small diameter portion 9 Large diameter portion 10 Opening portion 11 Thick wall portion 12 Cylindrical slip-out prevention member

Claims (4)

[Scope of utility model registration request] Claim 1: A jetting fluid flow path is provided inside the push-button jetting head, a protrusion support is provided at the center of the outlet of the flow path, and a protrusion portion is provided at the tip of the protrusion support. is disposed, and the end opening of the elastic cap can be fitted into or removed from the protrusion part, and the inner circumferential surface of the middle part of the elastic cap can be sealed against the circumferential surface of the protrusion support. A push-button injection device with a tip stop type jet head that can be partially moved in and out. 2. The tip of the outlet pipe on the container body side of the injection container is fitted into the inlet portion of the injection fluid flow path of the push button type injection head, and the center of the outlet portion of the injection fluid flow path is fitted. The base of the protrusion support shaft provided in the section is attached to the push button type injection head, and a bellow-shaped elastic cap is arranged around the protrusion support shaft, and between the elastic cap and the protrusion support shaft. A space portion with a desired spacing is formed in the elastic cap, and a small diameter portion is formed in a part of the elastic cap, and when the elastic cap is not in operation, the small diameter portion of the elastic cap is in contact with the circumferential surface of the protrusion support shaft, and when in operation, the elastic cap is The tip stop type according to claim 1, wherein when the small diameter portion of the cap separates from the circumferential surface of the protrusion support shaft, the opening at the tip of the elastic cap separates from the protrusion portion so that the contents can be injected. Push-button injection device with a jet head. 3. The base of the elastic cap is formed to have a thick wall, and the thick wall portion is fitted into the large diameter portion that becomes the outlet portion of the jetting fluid channel of the push button type jetting head, and the thick wall portion 2. A push-button injection device having a tip stop type nozzle according to claim 1, further comprising a slip-off prevention member disposed so as to come into contact with a sloped cross-sectional portion provided at the top. 4. The pushbutton having a tip-stop type nozzle according to claim 1, wherein a cylindrical slip-out prevention member having an inclined portion on at least one end thereof is disposed between the pushbutton type nozzle head and the elastic cap. Button-type injection device.