CN201743322U

CN201743322U - Air cushion having inflation device inside

Info

Publication number: CN201743322U
Application number: CN2010202017606U
Authority: CN
Inventors: 杜志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-25
Filing date: 2010-05-25
Publication date: 2011-02-16
Anticipated expiration: 2020-05-25

Abstract

The utility model discloses an air cushion having an inflation device inside, including a cylinder, a handle, a push rod, a piston, a sealing rubber gasket, an air cushion, an annular gland, an annular end cover, a soft sealing plug and a soft sealing sheet; the annular gland has a convex pipe extending to the end cover; internal threads are processed inside the convex pipe; the annular end cover has a convex pipe extending to the gland; the convex pipe of the end cover passes through the air bag wall of the air cushion and is threaded with the convex pipe of the gland; a circular hole is disposed in the center of the sealed end surface on one end of the cylinder; a vent hole is arranged around the circular hole in the center of the end surface of the cylinder; the soft sealing sheet is gripped in the circular hole and connected outside the end surface of the cylinder through a central cylindrical convexity thereof; the other end of the cylinder is adhered with the end cover; one end of the push rod is adhered with the piston in the cylinder; the other end successively passes through the end cover and the convex pipe of the gland and is sleeved on the front end of a handle convex rod; and the soft sealing plug is sleeved on the root portion of the handle convex rod.

Description

The air cushion of built-in aerating device

Technical field

The utility model relates to a kind of air cushion, relates in particular to a kind of air cushion of built-in aerating device.

Background technology

At present, people are when using air cushion, it is cumbersome to the air cushion inflation that feel in the capital, blow very effort of inflation with mouth, if the valve of air cushion 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 air cushion with mouth, and use inflator 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 air cushion of the built-in aerating device of inflator separately.

For addressing the above problem, the utility model adopts following design: a kind of air cushion of built-in aerating device, it comprises cylinder, handle, push rod, piston, O-ring seal, air cushion, it is characterized in that: it also comprises annular gland, annular end cap, soft sealing-plug, soft diaphragm seal, 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 internal thread, has the projection pipe that extends towards gland on the end face of described annular end cap, the outer surface of the protruding pipe on the end cap be processed with gland on the corresponding external screw thread of projection pipe internal thread, the airbag wall that the protruding pipe of end cap passes air cushion is connected with the protruding gas thread of gland; The center of cylinder one end Closed End has a circular hole, also has passage around cylinder end face center hole, and soft diaphragm seal 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 diaphragm seal be fixed on behind the cylinder front end outside because the elasticity of self is close to the outer surface 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 passages at least around cylinder end face center hole, plural passage 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 diaphragm seal center is in the diameter of cylinder end face center hole, the columnar projections of soft diaphragm seal is connected in the circular hole at cylinder end face center by interference fit, makes soft diaphragm seal be attached to the outside of cylinder end face and covers passage.

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 diaphragm seal before piston is subjected in the cylinder gas pressure and opens, soft diaphragm seal falls the passage 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 passage during inflation under less air pressure, it is very laborsaving that inflation can be felt, and cylinder is connected by airtight jockey, 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 air cushion of the built-in aerating device of the utility model.

Fig. 2 is the broken section enlarged drawing that the air cushion of the built-in aerating device of the utility model is fixed on the aerating device on the airbag wall.

The specific embodiment

As Fig. 1, shown in Figure 2, a kind of air cushion of built-in aerating device, it comprises cylinder 1, handle 2, push rod 3, piston 4, O-ring seal 5, air cushion 6, it also comprises annular gland 7, annular end cap 8, soft sealing-plug 9, soft diaphragm seal 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 internal 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 outer surface of the projection pipe 13 on the end cap 8 be processed with gland 7 on the corresponding external screw thread of projection pipe 12 internal 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 passages 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 diaphragm seal 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 diaphragm seal 9 is connected in the circular hole at cylinder 1 end face center by interference fit, make soft diaphragm seal 9 be attached to the outside of cylinder 1 end face and cover passage 14, cylinder 1 end face indent can make soft diaphragm seal 9 be fixed on behind the cylinder 1 end face outside because the elasticity of self is close to the outer surface 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 air cushion 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 air cushion 6, can be used for emitting the gas in the air bag when opening.

Above-mentioned connected 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 diaphragm seal in bottom and cylinder bottom end face and the connection between the piston, and they can also be:

Circular hole is processed at soft diaphragm seal 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, Plastic 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 internal diameter then and be slightly less than the piston of push rod external diameter and interior connection of circular hole of handle correspondence 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 connected mode can also conversion be combined into numerous embodiments; in a word; as long as possess by gland the airtight air bag inside that is fixedly connected on of cylinder, and the structure that seals by the soft sealing-plug that connects on the handle is all within the utility model protection domain.

Claims

1. the air cushion of a built-in aerating device, it comprises cylinder (1), handle (2), push rod (3), piston (4), O-ring seal (5), air cushion (6), it is characterized in that: it also comprises annular gland (7), annular end cap (8), soft sealing-plug (9), soft diaphragm seal (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 internal thread, has the projection pipe (13) that extends towards annular gland (7) on the end face of described annular end cap (8), the outer surface of the projection pipe (13) on the annular end cap (8) is processed with annular gland (7) and goes up the corresponding external screw thread of projection pipe (12) internal thread, and the airbag wall (11) that the projection pipe (13) of annular end cap (8) passes air cushion (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 passage (12) around cylinder end face center hole, soft diaphragm seal (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 air cushion of a kind of built-in aerating 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 air cushion of a kind of built-in aerating 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 air cushion of a kind of built-in aerating device according to claim 2 is characterized in that: have two passages (14) at least on the end face around the closed end face center hole of cylinder.

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

6. the air cushion of a kind of built-in aerating 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 air cushion of a kind of built-in aerating 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).