CN201678030U

CN201678030U - Inflatable lifejacket with internal air charging device

Info

Publication number: CN201678030U
Application number: CN201020201749XU
Authority: CN
Inventors: 杜志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-25
Filing date: 2010-05-25
Publication date: 2010-12-22
Anticipated expiration: 2020-05-25

Abstract

The utility model discloses an inflatable lifejacket with an internal air charging device, which comprises a cylinder, a handle, a push rod, a piston, a sealing rubber ring and an inflatable lifejacket, also comprises an annular gland, an annular end cover, a soft sealing plug and a soft sealing fin; the annular gland is provided with a convex tube extending towards the end cover, an internal thread is machined in the convex tube, the annular end cover is provided with a convex tube extending towards the gland, and the convex tube of the end cover penetrates through an airbag wall of the lifejacket to be in threaded connection with the convex tube of the gland; a round hole is machined in the center of the closed end surface of one end of the cylinder, vent holes are machined around the central round hole on the end surface of the cylinder, the soft sealing fin is clamped into the round hole and connected with the exterior of the end surface of the cylinder through a columnar projection in the center of the soft sealing fin, the other end of the cylinder is adhered with the end cover; one end of the push rod is adhered with the piston inside the cylinder, the other end of the push rod sequentially penetrates the end cover, the convex tube of the gland to be nested and adhered with the front end of a handle convex rod, and the soft sealing plug is nested with the root part of the handle convex rod.

Description

The inflatable lifejacket of built-in gas filled device

Technical field

The utility model relates to a kind of inflatable lifejacket, relates in particular to a kind of inflatable lifejacket of built-in gas filled device.

Background technology

At present, people are when using inflatable lifejacket, it is cumbersome to the inflatable lifejacket inflation that feel in the capital, blow very effort of inflation with mouth, if the valve of inflatable lifejacket is not grasped certain skill especially now, be difficult to blow into gas with mouth, that is just more difficult if children and women inflate to inflatable lifejacket with mouth, and use Floor Pump to carry in addition, very inconvenient.

The utility model content

Problem to be solved in the utility model provides a kind ofly blows inflation without mouth, also need not carry the inflatable lifejacket of the built-in gas filled device of Floor Pump separately.

For addressing the above problem, the utility model adopts following design plan: a kind of inflatable lifejacket of built-in gas filled device, it comprises cylinder, handle, push rod, piston, O-ring seal, inflatable lifejacket, it is characterized in that: it also comprises annular gland, annular end cap, soft sealing plug, soft seal strip, has the projection pipe that extends towards end cap on the end face of described annular gland, the inside of projection pipe is processed with negative thread, has the projection pipe that extends towards gland on the end face of described annular end cap, the outside face of the protruding pipe on the end cap be processed with gland on the corresponding outside thread of projection pipe negative thread, the airbag wall that the protruding pipe of end cap passes inflatable lifejacket is connected with the protruding gas thread of gland; The center of cylinder one end Closed End has a circular hole, also has air extractor vent around cylinder end face center hole, and soft seal strip is entrapped in the end face outside that is connected cylinder in the circular hole by the columnar projections at its center, and the other end and the end cap of cylinder are bonding; Push rod one end is with the bonding connection of cylinder inner carrier, and the other end passes the front end bonding connection that is socketed in handle projection bar behind the protruding pipe of end cap, gland successively, and soft sealing plug is socketed in the root of handle projection bar.

As further improvement of the utility model be, prolong the projection pipe and the gland almost coaxial heart of Shen on the end face of described annular gland towards end cap, the projection pipe and the end cap almost coaxial heart that extend towards gland on the end face of annular end cap.

Further improve again as of the present utility model, the closed end face of cylinder is the shallow sphere of indent or the indent butt conical surface, the end face indent can make soft seal strip be fixed on behind the cylinder front end outside because the elasticity of self is close to the outside face that is attached to end face, can guarantee the better sealing at itself and end face like this.

Further improve as the utility model again, have two air extractor vents at least around cylinder end face center hole, plural air extractor vent is more unobstructed in the time of can guaranteeing the inflator exhaust.

Further improve again as the utility model, the slightly larger in diameter of the columnar projections at soft seal strip center is in the diameter of cylinder end face center hole, the columnar projections of soft seal strip is connected in the circular hole at cylinder end face center by interference fit, makes soft seal strip be attached to the outside of cylinder end face and covers air extractor vent.

Further improve again as the utility model, the general shape of soft sealing plug is that inverted frustum is tubular, its bottom external diameter is slightly less than the internal diameter of the protruding pipe on the end cap, the top external diameter is slightly larger than the internal diameter of the protruding pipe on the end cap, this shape can be so that the projection pipe that the sealing plug insertion end covers, the sealing after can guaranteeing again to insert simultaneously.

Further improve as the utility model, the diameter of push rod has the air-breathing gap of inflator less than the internal diameter of end cap projection pipe between push rod and the protruding pipe.

After adopting said structure, pushing away when inflation soft seal strip before piston is subjected in the cylinder gaseous tension and opens, soft seal strip falls the air extractor vent of closed cylinder front end face after rise during the piston post-tensioning, because the bottom of inflator cylinder does not have narrow valve, so gas can flow through the front end air extractor vent during inflation under less air pressure, it is very laborsaving that inflation can be felt, and cylinder is connected by airtight connecting device, and air bag inside is also very convenient carries.

Description of drawings

Below in conjunction with drawings and the specific embodiments the utility model is further described:

Fig. 1 is the structural representation of the inflatable lifejacket of the built-in gas filled device of the utility model.

Fig. 2 is the semi-sictional view enlarged drawing that the inflatable lifejacket of the built-in gas filled device of the utility model is fixed on the gas filled device on the airbag wall.

The specific embodiment

As Fig. 1, shown in Figure 2, a kind of inflatable lifejacket of built-in gas filled device, it comprises cylinder 1, handle 2, push rod 3, piston 4, O-ring seal 5, inflatable lifejacket 6, it also comprises annular gland 7, annular end cap 8, soft sealing plug 9, soft seal strip 10, has the projection pipe 12 that extends towards end cap 8 on the end face of annular gland 7, itself and the gland 7 almost coaxial hearts, the inside of projection pipe 12 is processed with negative thread, has the projection pipe 13 that extends towards gland 7 on the end face of annular end cap 8, itself and the end cap 8 almost coaxial hearts, the outside face of the projection pipe 13 on the end cap 8 be processed with gland 7 on the corresponding outside thread of projection pipe 12 negative threads; The inside of cylinder 1 is inserted with piston 4, be with O-ring seal 5 on the piston 4, the center of 1 one Closed Ends of cylinder has a circular hole, also has at least two air extractor vents 14 around its end face center, its end face is the shallow sphere of indent or the butt conical surface, and the other end of cylinder 1 and end cap 8 are bonding; Described soft seal strip 10 centers are columnar projections 15, the slightly larger in diameter of columnar projections 15 is in the diameter of cylinder 1 end face center hole, the columnar projections 15 of soft seal strip 9 is connected in the circular hole at cylinder 1 end face center by interference fit, make soft seal strip 9 be attached to the outside of cylinder 1 end face and cover air extractor vent 14, cylinder 1 end face indent can make soft seal strip 9 be fixed on behind the cylinder 1 end face outside because the elasticity of self is close to the outside face that is attached to end face, can guarantee like this to seal better at itself and end face; The projection pipe 13 of end cap 8 passes airbag wall 11 and is threaded with the projection pipe 12 of gland 7, so just can be with the cylinder 1 airtight inflatable lifejacket 6 air bag inside that are connected; Push rod 3 one ends are with 4 bonding connections of cylinder 1 inner carrier, the other end passes the front end bonding connection that is socketed in handle 2 protruding bars 16 behind the

projection pipe

13,12 of end cap 8, gland 7 successively, the diameter of push rod 3 has the air-breathing gap of inflator less than the internal diameter of

projection pipe

12,13 between push rod 3 and the projection pipe 12; The general shape of soft sealing plug 9 is that inverted frustum is tubular, its bottom external diameter is slightly less than the internal diameter of the projection pipe 13 on the end cap 8, the top external diameter is slightly larger than the internal diameter of the projection pipe 13 on the end cap 8, this shape can be so that soft sealing plug 9 inserts the projection pipe 13 on the end caps 8, the sealing after can guaranteeing again to insert simultaneously.This soft sealing plug 9 is socketed in the root of handle 2 protruding bars 16, and the inner chamber that 2 times soft on time sealing plugs 9 of handle insert the projection pipe 13 on the end cap 8 is finished sealing, guarantees the inside and the extraneous airtight isolation of cylinder 1; Be connected with common valve on the inflatable lifejacket 6, can be used for emitting the gas in the air bag when opening.

Above-mentioned connection mode is not limited in connection, push rod and handle between connection, handle and the soft sealing plug between connection, gland and the cylinder of the utility model soft seal strip in bottom and cylinder bottom end face and the connection between the piston, and they can also be:

Circular hole is processed at soft seal strip center, is fixed on the end face of cylinder bottom by screw or rivet then; Can also be between gland and the end cap by being coated with glue glued adhesion connection, plastically welding, clamping, high frequency heat seal connection; Can also be between push rod and handle and the piston by screw thread is processed at the push rod two ends, then by being threaded, can also adopt the grafting of similar toy car metal axletree and wheel, both be pressed with anti-skidding line, and inserted then in piston that internal diameter is slightly less than the push rod external diameter and the cooresponding circular hole of handle and be connected at the push rod two ends; Can also be between handle and the soft sealing plug by gluing connection, or sealing plug is enclosed within behind the handle projection bar by the nut fixing seal plug on the push rod.

Above-mentioned different connection mode can also conversion be combined into numerous embodiments; in a word; as long as possess by gland, and come the leak free structure all within the utility model protection domain by the soft sealing plug of bonded assembly on the handle with the airtight air bag inside that is fixedly connected on of cylinder.

Claims

1. the inflatable lifejacket of a built-in gas filled device, it comprises cylinder (1), handle (2), push rod (3), piston (4), O-ring seal (5), inflatable lifejacket (6), it is characterized in that: it also comprises annular gland (7), annular end cap (8), soft sealing plug (9), soft seal strip (10), has the projection pipe (12) that extends towards annular end cap (8) on the end face of described annular gland (7), the inside of projection pipe (12) is processed with negative thread, has the projection pipe (13) that extends towards annular gland (7) on the end face of described annular end cap (8), the outside face of the projection pipe (13) on the annular end cap (8) is processed with annular gland (7) and goes up the corresponding outside thread of projection pipe (12) negative thread, and the airbag wall (11) that the projection pipe (13) of annular end cap (8) passes inflatable lifejacket (6) is threaded with the projection pipe (12) of annular gland (7); The center of cylinder (1) one end Closed End has a circular hole, also have air extractor vent (12) around cylinder end face center hole, soft seal strip (10) is entrapped in the end face outside that is connected cylinder (1) in the circular hole by the columnar projections (15) at its center, and the other end of cylinder (1) and annular end cap (8) are bonding; The push rod same cylinders of (3) one ends (1) inner carriers (4) bonding connection, the other end passes the front end bonding connection that is socketed in the protruding bar of handle (2) (16) behind the projection pipe (13), (12) of annular end cap (8), annular gland (7) successively, and soft sealing plug (9) is socketed in the root of the protruding bar of handle (2) (16).

2. the inflatable lifejacket of a kind of built-in gas filled device according to claim 1, it is characterized in that: the projection pipe (12) that extends towards annular end cap (8) on the end face of described annular gland (7) and annular gland (7) the almost coaxial heart, the projection pipe (13) that extends towards annular gland (7) on the end face of annular end cap (8) and annular end cap (8) the almost coaxial heart.

3. the inflatable lifejacket of a kind of built-in gas filled device according to claim 1, it is characterized in that: the closed end face of cylinder (1) is the shallow sphere of indent or the indent butt conical surface.

4. the inflatable lifejacket of a kind of built-in gas filled device according to claim 2 is characterized in that: have two air extractor vents (14) at least on the end face around the closed end face center hole of cylinder.

5. the inflatable lifejacket of a kind of built-in gas filled device according to claim 1, it is characterized in that: the slightly larger in diameter of the columnar projections (15) at soft seal strip (10) center is in the diameter of cylinder (1) end face center hole, the columnar projections (15) of soft seal strip (10) is connected in the circular hole at cylinder (1) end face center by interference fit, makes soft seal strip (10) be attached to the outside of cylinder (1) end face and covers air extractor vent (12).

6. the inflatable lifejacket of a kind of built-in gas filled device according to claim 1, it is characterized in that: the general shape of soft sealing plug (9) is that inverted frustum is tubular, its bottom external diameter is slightly less than the internal diameter of the projection pipe (13) on the annular end cap (8), and the top external diameter is slightly larger than the internal diameter of the projection pipe (13) on the annular end cap (8).

7. the inflatable lifejacket of a kind of built-in gas filled device according to claim 1 is characterized in that: the diameter of push rod (3) is less than the internal diameter of annular end cap (8) projection pipe (13).