CN1553055A

CN1553055A - Improved bicycle pump structure with double-directional air inlet

Info

Publication number: CN1553055A
Application number: CNA031412696A
Authority: CN
Inventors: 黄英哲; 黄俊铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-03
Filing date: 2003-06-03
Publication date: 2004-12-08
Anticipated expiration: 2023-06-03
Also published as: CN1298998C

Abstract

An air pump is improved with a bi-directional inletting structure. Two cylinders are oppositely assembled at the end of the pump. Each cylinder is connected with the pump via a one-way valve at the inlet of the pump. The pump is equipped with an outlet with a one-way valve to prevent from the compressed air to flow back. The outlet has a screw button to be screwed onto the inletting nozzle. It makes pumping easily.

Description

The inflator structure of improved bidirection air intake

Technical field

The present invention is used for bicycle or the ball pump of doing the work of inflating relevant for a kind of, particularly relevant for the structure of air circulation that prevents to get and leakage.

Background technique

U. S. Patent bulletin No.6, the device of the combined two-way air intake inflator that 350, No. 112 patent cases are provided is to be provided with respectively in the relative both sides of a head to inflate pump, this head has the connection set that is used for being connected in the tire air inlet nozzle, to provide air is squeezed in the tire via air inlet nozzle.

The connection set of patent case is incorporated into head owing to chimeric mode before described, so drops because of vibrations or other external force factor easily in the using process.Moreover, owing to do not have non-return structure in its head, thereby must both sides when inflating all do the action of inflating simultaneously and air could be got, if only inflate, will cause air to release and can't successfully get air from another side with monolateral.

Summary of the invention

The inflator structure of improved bidirection air intake provided by the present invention, its first purpose are to be to solve traditional two-way air intake inflator when doing monolateral inflating, the disappearance that can cause air to leak from another side.

The inflator structure of improved bidirection air intake provided by the present invention, its second purpose are to be subjected to the air pressure effect easily when being to solve the head of traditional two-way air intake inflator and charging air inlet combination and the disappearance that breaks away from.

First technological means of the present invention is at the relative two side-inlet places of two-way air intake inflator one backstop to be set all, in order to when doing monolateral inflating, avoids the air in the air inlet head to leak from another side.

Second technological means of the present invention is in the outlet side of two-way air intake inflator the knob that is combined with nut to be set, and by the external thread spiro fastening of this nut and charging air inlet, is avoided head and charging air inlet to break away from because of being subjected to the air pressure effect.

Based on this, the present invention makes up a cylinder respectively in the relative both sides of a head, be provided with suction port backstop and stopping leak assembly between the inlet end of described cylinder and head, can prevent that when doing monolateral inflating air from releasing from another side by this suction port backstop, can prevent then that by this stopping leak assembly air from leaking from the combination of cylinder and head; The outlet side of described head is provided with air outlet backstop and knob, and this knob is combined with nut, can utilize this nut to be locked on charging air inlet and come off avoiding; This air outlet backstop can prevent the air circulation got, so make inflate more laborsaving.

Compare with prior art, when the present invention utilizes two-way air intake inflator to do unidirectional inflating, can avoid squeezing into the other end that the air in the head never inflates and leak.

The head of two-way air intake inflator of the present invention can be done firm combination with charging air inlet, avoids breaking away from because of being subjected to the air pressure effect.

Description of drawings

Fig. 1 is for showing the integrally-built section plan of the present invention.

Fig. 2 is for showing the amplification section plan of single-side structural of the present invention.

Fig. 3 is the plane exploded view of the combination relation of demonstration primary clustering of the present invention.

Fig. 4 is combined between head and the cylinder for showing suction port backstop of the present invention, and when inflating the partial sectional view of the flow direction of air.

Fig. 5 is when showing air circulation, the partial sectional view of the state of suction port backstop blocks air adverse current of the present invention.

Fig. 6 is combined in the outlet side of head for showing air outlet of the present invention backstop, and when inflating the partial sectional view of the flow direction of air.

Fig. 7 is when showing air circulation, the partial sectional view of the state of air outlet of the present invention backstop blocks air adverse current.

The figure number explanation

1 head, 131 grooves

10 inlet ends 14 channel of giving vent to anger

101 outlet sides, 15 screwed pipes

11 internal threads, 151 outside threads

12 suction tude, 152 screws

120 suction ports, 153 screws

13 air inlet channels, 2 cylinders

21 outside threads, 511 holes

22 axostylus axostyles 52 go out vent hole

23 pistons, 53 grooves

24 handles, 54 internal threads

3 suction port backstops, 55 valve blocks

31 inlet valve seats, 56 flanges

311 air inlet through holes, 57 protruding pipes

32 valve blocks, 6 knobs

4 stopping leak assemblies, 61 inner edges

41 collar flanges, 7 stopping leak pads

42 taper flanges, 71 center holes

43 tubular flange, 8 nuts

5 air outlet backstops, 81 internal threads

50 its gas discharge valve base 9 are filled

51 tube walls

Embodiment

Fig. 1 shows two-way air intake inflator main structure of the present invention, be a cylinder 2 to be set respectively in the relative both sides of a head 1, be equipped with piston in each cylinder 2 in conjunction with axostylus axostyle 22, this axostylus axostyle 22 is combined in handle 24, make piston 23 in cylinder 2, during axial motion, be able to air compression is entered in the head 1 by operating handle 24; The another location of described head 1 then is provided with the outlet side, and sets out gas port backstop 5 in this outlet side, and 5 of this air outlet backstops are further combined with a knob 6 that is combined with nut 8.

Fig. 2 and Fig. 3 be intercepting two-way air intake inflator of the present invention wherein one inflate end, and the structure of outlet side is described further; An other side inflate end structure then and shown in inflate hold identical.Head 1 relative both sides shown in Figure 3 are provided with an inlet end 10, the internal diameter of this inlet end 10 is provided with internal thread 11, and a suction tude 12 is set in the center of inlet end 10, the bottom of this suction tude 12 is provided with an air inlet channel 13, and suction tude 12 bottom surfaces of these air inlet channel 13 peripheries then are provided with a plurality of grooves 131; 13 of described air inlet channels are communicated with a vertical channel 14 of giving vent to anger; The outlet side 101 of this head 1 has the screwed pipe 15 that is combined as a whole with head 1, and this screwed pipe 15 has outside thread 151, and the described channel 14 of giving vent to anger is for connecting the center of this screwed pipe 15; The outer wall appropriate location of this screwed pipe 15 is provided with a screw 152.

The present invention is provided with outside thread 21 at the external diameter of cylinder 2, can make cylinder 2 and head 1 combination by the internal thread 11 that this outside thread 21 is locked head 1.The present invention further is provided with a suction port backstop 3 and a stopping leak assembly 4 between cylinder 2 and head; This suction port backstop 3 is to be used for making air to be driven into head 1 inside can't reflux again, to guarantee causing air to leak from another side carrying out the monolateral Shi Buhui of inflating; 4 of this stopping leak assemblies are to be used for preventing that air from leaking from the cylinder 2 and the junction of head 1.Described suction port backstop 3 includes an inlet valve seat 31 and a valve block 32; This valve block 32 manufactures the laminar body of suitable thickness with soft rubber material, and the area of valve block 32 can cover the import of described air inlet channel 13 and the axial end of groove 131 fully, but can not cover the side of groove 131; This inlet valve seat 31 has an air inlet through hole 311; When described valve block 32 is inserted in the suction tude 12, suction valve 31 can be incorporated into the internal diameter of suction tude 12, make the inside of suction tude 12 only be communicated with this air inlet channel 311 with the outside.Described stopping leak assembly 4 is to adopt soft rubber material manufacturing to form, it is one-body molded and have a tubular flange 43, one is connected in the collar flange 41 of these tubular flange 43 external diameters, and be connected in the taper flange 42 of this tubular flange 43 and collar flange 41 between having a common boundary, allow stopping leak assembly 4 similar one bowl-shape bodies; This stopping leak assembly 4 is to utilize the internal diameter of tubular flange 43 to compel to close suction tude 12 external diameters in head 1, and then makes collar flange 41 closings in the bottom surface of inlet end 10, makes the outside of ora terminalis headward 1 of taper flange 42 simultaneously.After the outside thread 21 of described cylinder 2 is locked on the internal thread 11 of head 1, get so that the end of cylinder 2 is butted on collar flange 41, and the ora terminalis of taper flange 42 fits in the internal diameter wall (as shown in Figure 2) of cylinder 2, thereby prevented that air from leaking from the combination of cylinder 2 with head 1.

The present invention includes an its gas discharge valve base 50 and a valve block 55 at head 1 set air outlet backstop 5; This its gas discharge valve base 50 is substantially a cylinder, and the upper end of its cylinder has the interior space of recessed appropriate depth, and the internal face in space is provided with internal thread 54 in this, and in its wall one hole 511 that connects is set; The external diameter of this its gas discharge valve base 50 has the flange 56 of ring-type near the appropriate location, lower end; The bottom surface of its gas discharge valve base 50 be provided with one connect upper and lower go out vent hole 52, this bottom surface, interior space that goes out vent hole 52 peripheries is provided with a plurality of grooves 53; The internal thread 54 of its gas discharge valve base 50 can be locked on the outside thread 151 of described screwed pipe 15.This valve block 55 manufactures the laminar body of suitable thickness with soft rubber material, and the area of valve block 55 can cover fully and describedly go out the import of vent hole 52 and the outlet of the described channel 14 of giving vent to anger, but can not cover the side of described groove 53.

Described knob 6 is a kind ofly to be big cylinder than its gas discharge valve base 50, and the upper end of its internal diameter is formed with inner edge 61.

Before described its gas discharge valve base 50 makes up with head 1, earlier valve block 55 is put into the bottom surface, space of its gas discharge valve base 50, then its gas discharge valve base 50 is passed knob 6 from lower to upper, and then make flange 56 be stopped and can not allow its gas discharge valve base 50 pass again by inner edge 61, then that the internal thread 54 of its gas discharge valve base 50 is sealed with the outside thread 151 of screwed pipe 15, seasonable up to 152 pairs of hole 511 and screws, pass hole 511 with screw 153 again and lock screw 152, to come off avoiding its gas discharge valve base 50 and screwed pipe 15 are further fixing.Last again after the protruding pipe 57 of its gas discharge valve base 50 bottoms is nested with the center hole 71 of a stopping leak pad 7, again nut 8 packings are fixed in the lower end of knob 6 internal diameters.

By aforementioned structure of the present invention, its mode of inflating operation is the charging air inlet that earlier screw 81 of nut 8 is sleeved on bicycle or object such as ball, rotary knob 6 so can make combining between charging air inlet and the knob obtain best firm effect and avoids action of air pressure and break away from so that screw 81 combines with the outside thread of charging air inlet again.Operating handle axial motion and air is squeezed in the head 1 by suction port backstop 3 then makes air get head 1 to inflate by air outlet backstop 5 again.

Fig. 4 has shown the present invention when inflating, and can promote valve block 32 during the air inlet through hole 311 of air by inlet valve seat 31 and block in the import of air inlet channel 13, makes air to enter air inlet channel 13 by groove 131 sides.If Fig. 5 has then shown a side and has not inflated action, and when having only opposite side to inflate, the air of the head that enters can promote valve blocks 32 via air inlet channel 13 and move and block to live in the air inlet through hole 311 of air valve seat 31, to avoid air to leak, air can successfully be got via the channel 14 of giving vent to anger.

Fig. 6 show air when the channel 14 of giving vent to anger is got, can directly promote valve block 55 block in its gas discharge valve base 50 go out vent hole 52 imports, make air to flow into out vent hole 52 and got from the side of groove 53; And when by the air circulation got, pressure that then can air can promote valve block 55 and move with the give vent to anger outlet (as shown in Figure 7) of channel 14 of obstruction, so can avoid causing resistance because of air circulation, and is more laborsaving when allowing the user operate.Stopping leak pad 7 shown in Fig. 6,7 is to be when charging air inlet 9 is locked on nut 8, be butted on stopping leak pad 7 by to be allowed the end of charging air inlet, and then avoids air to leak from the junction point of charging air inlet and nut 8.

The above person only is in order to explain preferred embodiment of the present invention; be not that attempt is done any pro forma restriction to the present invention according to this; so, all have in that identical creation spirit is following do relevant any modification of the present invention or change, all must be included in the category that the invention is intended to protect.

Claims

1. the inflator structure of a bidirection air intake is characterised in that it comprises:

One head, its relative both sides are respectively inlet end, this two inlet end is respectively in conjunction with a cylinder, this inlet end has a suction tude, this suction tude is communicated with an air inlet channel, and inlet's side of this air inlet channel has groove (131), and described head has an outlet side, this outlet side has the channel of giving vent to anger, and this give vent to anger channel and this air inlet channel-connectivity;

One suction port backstop includes an inlet valve seat and a valve block (32), and this inlet valve seat is combined in the inlet of described suction tude, and this valve block is located in this suction tude, and between this suction tude bottom and inlet valve seat;

One stopping leak assembly, it is incorporated into described suction tude, and is packed in the junction of this head and cylinder;

One air outlet backstop, include an its gas discharge valve base and a valve block (55), this its gas discharge valve base is combined in the outlet side of described head, this its gas discharge valve base has the vent hole of going out, this inlet's side that goes out vent hole has groove (53), and described valve block (55) is located between the outlet side of the inner bottom surface of this its gas discharge valve base and this head;

One knob, it is combined in this its gas discharge valve base, makes this knob relatively to rotate with its gas discharge valve base, and this knob is combined with nut.

2. the inflator structure of bidirection air intake according to claim 1, wherein, described stopping leak assembly has a tubular flange, and this tubular flange external diameter is formed with collar flange and taper flange.

3. the inflator structure of bidirection air intake according to claim 1, wherein, the outlet side of described head is provided with possesses externally threaded screwed pipe, and described its gas discharge valve base has internal thread, by this internal thread and this outside thread and this its gas discharge valve base and this screw thread are screwed.

4. the inflator structure of bidirection air intake according to claim 3, wherein, the sidewall of this its gas discharge valve base is provided with hole, and the outer wall of this screwed pipe is provided with screw, can pass this hole by screw and lock this screw again this its gas discharge valve base and screwed pipe are fixed.

5. the inflator structure of bidirection air intake according to claim 1, wherein, described its gas discharge valve base has flange, and the two ends of described knob are for connecting, and form inner edge in inside, with so that this its gas discharge valve base when passing this knob, is utilized this inner edge to stop this flange.