Syringe container

Abstract

A syringe-type container includes a bottle body, a piston, a seal, and a cap. The piston is inserted into the bottle body through an installation port and includes a vent hole. The seal closes the vent hole of the piston. The cap is detachably mounted on the front end of the bottle body. Because the piston has a vent hole, air inside the bottle can be expelled through the vent hole when the piston is inserted. The vent hole is then closed by the seal. This syringe-type container is easy to assemble and improves the problem of filler overflow and waste during assembly.

Claims

1. A syringe-type container comprising: a bottle body including an outlet at a front end, an mounting port at a rear end, and a receiving space formed inside the bottle body and communicating with the outlet and the mounting port; a piston inserted into the bottle body through the mounting port, the outer periphery of the piston tightly fitting the inner peripheral wall of the bottle body, the piston including a vent hole located centrally and extending through the front and rear ends, the vent hole communicating with the receiving space of the bottle body; a seal closing the vent hole of the piston; and a cap detachably mounted on the front end of the bottle body and closing the outlet.

2. The syringe-type container as claimed in claim 1, wherein the rear end of the piston is recessed with a mounting groove communicating with the vent hole, and the inner diameter of the mounting groove is larger than the inner diameter of the vent hole; and the seal includes a base and a plug, the plug extending forward from the front end of the base and extending into the vent hole of the piston to close the vent hole; the base is accommodated in the mounting groove of the piston.

3. The syringe-type container as claimed in claim 2, wherein the piston is made of an elastomer and the hardness of the seal is greater than the hardness of the piston.

4. A syringe-type container as described in any one of claims 1 to 3, wherein the bottle body includes a barrel and a neck, the neck being located at the front end of the barrel, the inner diameter of the rear end of the neck being smaller than the inner diameter of the front end of the neck, the outlet being formed at the front end of the neck, and the mounting port being formed at the rear end of the barrel; the cap includes a cap sleeve and a snap-fit ​​post, the cap sleeve being fitted onto the neck of the bottle body, the rear end of the cap sleeve being recessed in a groove; the snap-fit ​​post being formed in the groove, extending rearward, and extending into the outlet.

5. The syringe-type container as claimed in claim 2, wherein the seal includes a push groove recessed at the rear end of the base.

6. The syringe-type container as claimed in claim 5, wherein the bottle body includes a barrel and a neck, the neck being located at the front end of the barrel, the inner diameter of the rear end of the neck being smaller than the inner diameter of the front end of the neck, the outlet being formed at the front end of the neck, and the mounting port being formed at the rear end of the barrel; the cap body includes a cap sleeve, a snap-fit ​​post, and a handle, the cap sleeve being fitted onto the neck of the bottle body, and a groove being recessed at the rear end of the cap sleeve; the snap-fit ​​post being formed in the groove, extending rearward and extending into the outlet; the handle extending forward from the front end of the cap sleeve, and the cap body being able to extend into the push groove of the seal with the handle.

7. The syringe-type container as claimed in claim 6, wherein the piston is made of an elastomer and the hardness of the seal is greater than the hardness of the piston.

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