Color bar launcher

Abstract

The present invention discloses a color bar launcher, which comprises a cylinder for holding color bars and an elastic sleeve; Two ends of the cylinder are open, one end is connected with an end cover, and the other end is closed by the elastic sleeve; the middle part of the outer side of the elastic sleeve is provided with a hand pinching part; the surface of the end cover is provided with a launching port, a positioning ring is fixed around the launching port, protrusions are arranged inside the positioning ring, and a sealing sheet that closes the launching port is movably assembled between the positioning ring and the protrusions. It can ensure the successful launch of the color bar; at the same time, it has the advantages of simple structure, convenient assembly and low cost.

Claims

1. A color bar launcher, characterized in that: comprising a cylinder body for holding color bars, and an elastic sleeve; two ends of the cylinder body are open, one end is connected to an end cover, and the other end is closed by the elastic sleeve; the middle part of the outer side of the elastic sleeve is provided with a hand pinching part; the cover surface of the end cover is provided with a launching port, a positioning ring is fixed around the launching port, protrusions are arranged on the inner side of the positioning ring, and a sealing sheet which closes the launching port is movably assembled between the positioning ring and the protrusions.

2. The color bar launcher of claim 1, wherein the hand pinching part is a protrusion on the body of the elastic sleeve.

3. The color bar launcher of claim 2, wherein the elastic sleeve comprises an integrally formed sleeve part, a cover part and a protruding part; the sleeve part wraps the outer side wall of the cylinder body, the cover part closes the ends of the cylinder, and the protruding part is located in the middle position of the cover part.

4. The color bar launcher of claim 3, wherein the protruding part is a hollow body, and the middle cavity of the hollow body communicates with the inner cavity of the cylinder body.

5. The color bar launcher of claim 3, wherein the thicknesses of the sleeve part, cover part and the protrusion part increase in order.

6. The color bar launcher of claim 5, wherein the thickness of the sleeve part is 0.8-1.5 mm, the thickness of the cover part is 1.6-2.2 mm, and the thickness of the protrusion part is 2.5-4.5 mm. .

7. The color bar launcher of claim 6, wherein the thickness of the sleeve part is 1.1 mm, the thickness of the cover part is 1.8 mm, and the thickness of the protrusion part is 3.5 mm.

8. The color bar launcher of claim 1, wherein the outer diameter of the sealing sheet is 1 to 2 mm smaller than the inner diameter of the positioning ring.

Description

BRIEF DESCRIPTION OF THE DRAWINGS:

[0014] FIG. 1 is a schematic diagram of the overall appearance of an embodiment of the application;

[0015] FIG. 2 is an enlarged view of the B-B cross-sectional structure of the end cap shown in FIG. 1;

[0016] FIG. 3 is a schematic diagram of the split matching structure of the cylinder and the elastic sleeve;

[0017] FIG. 4 is a schematic diagram of the structure of the elastic sleeve;

[0018] FIG. 5 is a cross-sectional structural view of A-A shown in FIG. 4.

DETAILED DESCRIPTION

[0019] Refer to the drawings to reflect a specific structure of the present application. The color bar launcher includes a cylinder 1 containing color bars (not shown in the figure), an end cover 4, and an elastic sleeve 2. The two ports of the cylinder 1 are open, one end is connected to the internal thread 5 of the end cap 4 through the external thread 3, and the other end is closed by the elastic sleeve 2. The elastic sleeve 2 is composed of a similar elastic fabric such as rubber skin or plastic skin.

[0020] The middle part of the outer side of the elastic sleeve 2 is provided with a hand-pinching portion. In this example, the hand-pinching portion is a protrusion 8 on the body of the elastic sleeve 2.

the elastic sleeve 2 includes sleeve portion 6, cover portion 7 and protrusion portion 8. When assembling, the sleeve part 6 can be wrapped and glued on the recessed area 9 on the outer side wall of the cylinder 1, which is very convenient. The cover portion 7 closes the port of the cylinder 1, and the protrusion 8 is located in the middle position of the cover portion 7.

[0021] In this example, the protrusion 8 is a hollow body, and the middle cavity 10 of the hollow body communicates with the inner cavity of the cylinder 1. In this example, as shown in FIG. 5, the thickness M of the sleeve portion 6 is 1.1 mm, the thickness N of the cover portion 7 is 1.8 mm, and the thickness H of the protrusion 8 is 3.5 mm.

[0022] The cover surface of the end cap 4 is provided with a launching port 11, a positioning ring 12 is fixed around the launching port 11, and four fixing bodies 13 are evenly distributed along the circumference of the inner side of the positioning ring 12. The sealing sheet 14 is fixed between the ring 12 and the fixing body 13. The sealing sheet is a hard paper sheet. The outer diameter of the sealing sheet 14 is smaller than the inner diameter of the positioning ring 12 by 1 to 2 millimeters. While effectively closing the launching port 11, it is ensured that the sealing sheet 14 can be punched out.

[0023] When in use, pinch the protrusion 8 with your hand to pull the cover 7 outward. The protrusion 8 has a cavity 10, which can be greatly elongated and deformed together with the cover 7 to absorb air and accumulate elastic potential energy; Release, the protrusion 8 and the cover 7 rebound, and the air in the cylinder 1 is driven to impact the sealing sheet 14. The sealing sheet 14 is slightly deformed and its edge is separated from the restraint of the positioning ring 12 and the card body 13, and is removed from the launch port 11. Punch out to release the closure of the launch port 11; at the same time, the inner side of the cover 7 also directly touches the color bar, and directly drives the color bar to eject when it rebounds, and the color bar is launched from the open launch port 11 with the assistance of the air in the cylinder. Into the air.

[0024] It can be seen from the above that the application can ensure the successful launch of the color bar; at the same time, it has the advantages of simple structure, convenient assembly and low cost.

[0025] The foregoing implementation manners are only to clearly illustrate the technical solutions of the present application, and should not be understood as making any restrictions on the present application. The application has a variety of well-known substitutions or modifications in the technical field, and all of them fall into the protection scope of the application without departing from the essential meaning of the application.