CN2242132Y

CN2242132Y - Liquid jetting device

Info

Publication number: CN2242132Y
Application number: CN 95217673
Authority: CN
Inventors: 金贞秀
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-07
Filing date: 1995-07-07
Publication date: 1996-12-11
Anticipated expiration: 2005-07-07

Abstract

The utility model relates to a liquid jetting device which is composed of a container cover (1), a hollow cylindrical body (2), a pressing cover (24), the head of a nozzle (5), a hollow piston rod (4), a piston (3), a coupled rod (12), a spring (11) and a steel ball (10), wherein, the bottom end of the inner side of the piston (3) is provided with an inclined surface (17); the outer side of the upper part of the spring seat part (13) of the coupled rod (12) is also provided with an inclined surface (18); the inclined surface (17) and the inclined surface (18) can be connected in a sealing mode, or the inclined surface (17) can disengage from the inclined surface (18) to form a distance h; the inclined surface (17) and the inclined surface (18) form a second valve which plays the on-off action at a delivery outlet; the steel ball (10) and a valve port seat (23) in the hollow cylindrical body (2) form a first valve (6) which plays the on-off action at a suction mouth. Liquid substance with higher viscosity held in a container can be conveniently jetted by the utility model.

Description

Liquid injection apparatus

The utility model relates to a kind of injection apparatus, the liquid injection apparatus of the liquid in the coupled logical container of particularly a kind of compressible injection.

Liquid injection apparatus of the prior art at the head place of its band nozzle second valve is installed, and the bottom is installed with first valve.First valve plays on-off action at the suction inlet place, and second valve plays on-off action at equipped at outlet port.First valve and a valve rod above it fuse, so action is sensitive inadequately; And second valve and first valve are at a distance of far away.Liquid in injection is contained in container, the liquid that particularly has viscosity higher, as liquid glazing agent cosmetics and washing agent and so on or that be used for automobile and so on, during thick liquid, will produce pressure and descend, emitted dose reduces, the problem that action has some setbacks.

The purpose of this utility model provides a kind of improved liquid injection apparatus, and its action is smooth and easy, can spray the liquid that is contained in the container effectively.

The purpose of this utility model is achieved through the following technical solutions, and promptly a kind of liquid injection apparatus comprises:

One container cover, it can spin with the opening of the container of contain fluid, and a central through hole is arranged at its top;

One hollow cylinder, comprise one that extend radially outwardly from the top, be positioned at first flange on the through hole, second one under first flange, that extend radially outwardly, as the to be tight against container cover top inner edge flange, one first shoulder of subordinate side within it, and one below first shoulder, the valve seat of tool one central through hole;

One gland, its centre bore post is positioned at the top vestibule of hollow cylinder, that its flanging lower end has is one that extend radially inwardly, with the shoulder of the first flange snapping of hollow cylinder, and the external diameter of outer side flanging is greater than the internal diameter of container cover top through hole;

One nozzle head, it has a part can stretch into the hollow straight cylinder of the centre bore post endoporus of gland, and a side nozzle that is communicated with the hollow straight cylinder;

One hollow piston rod, the hollow straight cylinder close-fitting of its upper end and nozzle head the one first radially inwardly outstanding annular lip is arranged in its endoporus, and second a radially outward outstanding annular lip is arranged at the bottom of its lateral wall; And

One piston, the inner surface sliding-contact of its lateral surface and hollow cylinder, the outside sliding-contact of the bottom of its inside upper part and hollow piston rod, there is an inclined-plane its inboard bottom, and can conflict second annular lip of hollow piston rod of its inboard top;

One coupled pole, it comprises a diversion rod part and a spring base part that fuses with its lower end; Described diversion rod partly comprises at least three circumferential evenly spaced vertical ribs and the runner that is formed by adjacent vertical rib, and a shoulder is also respectively arranged at each vertical rib bottom, described diversion rod part and hollow piston rod endoporus bottom close-fitting, and all vertical ribs top is tight against first annular lip, and the shoulder in all vertical ribs outside is tight against the lower end of hollow piston rod; Described spring base part upper outside has an inclined-plane that can contact with the inclined-plane sealing of the inboard bottom of piston; And when second annular lip of the inboard top conflict hollow piston rod of piston, the spacing on piston inclined-plane and spring base inclined-plane is h;

One spring, its upper end is tight against the spring base part, and its lower end is tight against first shoulder; And

One steel ball, it places on the valve seat movably, and its diameter is suitable for the central through hole of valve seat is sealed.

The utility model has the advantages that, owing to first valve of forming by steel ball and valve seat, very smooth and easy with the opening and closing action of second valve of forming by piston and coupled pole, so it can spray the liquid that is contained in the container easily, is suitable for spraying the liquid with viscosity higher especially.

Describe an embodiment of the present utility model in detail below in conjunction with accompanying drawing, so that more clearly understand the purpose of this utility model and advantage.

Fig. 1 is the longitudinal section of the utility model one embodiment, and wherein piston rod is in propradation;

Fig. 2 is identical with structure shown in Figure 1, and wherein piston rod is in the decline state;

Fig. 3 is the stereogram of coupled pole;

Shown in Fig. 1 and 2, the liquid injection device that the utility model provides comprises:

One container cover 1, it can spin with the opening of the container (not shown) of contain fluid, and a central through hole 19 is arranged at its top;

One hollow cylinder 2, it comprises first flange 20 that extends radially outward from the top, one second flange 21, that extends radially outward, first shoulder 22 of subordinate side within it under first flange, and a valve seat 23 below first shoulder 22, that have a central through hole; When second flange 21 was tight against container cover 1 top inner edge, first flange 20 was positioned on the through hole 19;

One gland 24; Its centre bore post 25 is positioned at the top vestibule of hollow cylinder 2, and there is a shoulder that extends radially inwardly 26 its outer side flanging 27 lower ends, and the external diameter of outer side flanging 27 is greater than the internal diameter of container cover 1 top through hole 19; When first flange, 20 snappings of the shoulder 26 of outer side flanging 27 and hollow cylinder 2, container cover 1 is only rotatable and can not break away from them; In addition, also therein the endoporus top of heart hole post 25 establish internal thread 8;

One nozzle head 5, it has a part can stretch into the hollow straight cylinder 28 of centre bore post 25 endoporus of gland 24, and a side nozzle 5 ' that is communicated with hollow straight cylinder 28; And the external screw thread 9 that can mesh with the internal thread 8 of centre bore post 25 also can be established in the outside of hollow straight cylinder 28;

One hollow piston rod 4, its upper end is connected with hollow straight cylinder 28 tight fits of nozzle head 5; The one first radially inwardly outstanding annular lip 29 is arranged in its endoporus, and second a radially outward outstanding annular lip 30 is arranged at the bottom of its lateral wall;

One piston 3, the inner surface sliding-contact of its lateral surface and hollow cylinder 2, the outside sliding-contact of the bottom of its inside upper part and hollow piston rod 4, there is an inclined-plane 17 its inboard bottom, and can conflict second annular lip 30 of hollow piston rod 4 of its inboard top;

One coupled pole 12 please be simultaneously referring to Fig. 3, and it comprises a diversion rod part 7 and a spring base part 13 that fuses with its lower end; Described diversion rod part 7 comprises at least three circumferential evenly spaced vertical ribs 14 (having drawn four among Fig. 3) and the runner 15 that is formed by adjacent vertical rib, and each vertical rib outer lower portion also respectively has a shoulder 16, described diversion rod part 7 is fixed with hollow piston rod 14 endoporus bottom close-fittings, and all vertical ribs 14 tops are tight against first annular lip 29, and the shoulder 16 in all vertical ribs outside is tight against the lower end of hollow piston rod 4; And the upper outside of described spring base part 13 has an inclined-plane 18 that can contact with 17 sealings of inclined-plane, piston 3 inboard bottom; And when second annular lip 30 of the inboard top conflict hollow piston rod 4 of piston 3, the spacing on the inclined-plane 18 of the inclined-plane of piston 3 and spring base 13 is h; In addition, described coupled pole 12 and piston 3 can merge second valve that has been called the delivery outlet on-off action;

One spring 11, its upper end is tight against spring base part 13, and its lower end is tight against first shoulder 22 on the hollow cylinder 2; And

One steel ball 10, it places on the valve seat 23 movably, and its diameter is suitable for the centre bore of valve seat is sealed; Described steel ball 10 and valve seat 23 can merge first valve 6 that has been called the suction inlet on-off action.

Operation principle of the present utility model is: utilize container cover 1 that this device is installed in one and hold on the opening of container of liquid, and tight fit is installed in a conduit 31 of hollow cylinder 2 lower ends and inserts in the container chambers.When bringing into use, make external screw thread 9 disengagings of nozzle head 5 and the engagement of the internal thread 8 of gland 24.In case throw off engagement, coupled pole 12 rises under the effect of spring 11, drive hollow piston rod 4 and nozzle head 5 risings, and make the inclined-plane 17 of piston 3 and inclined-plane 18 sealed engagement on the spring base part 13, see Fig. 1.Like this, hollow cylinder 2 bottom hole cavity pressures reduce, liquid by conduit 31, push open in the bottom vestibule that steel ball 10 enters hollow cylinder 2.Then, downward pressing nozzle head 5, and by hollow piston rod 4 and coupled pole 12 to lower compression spring 11, pressure in the hollow cylinder 2 bottom vestibules is raise, thereby promote the centre bore that steel ball 10 is sealed valve seat 23, and the inclined-plane 17 that makes piston 3 break away from spring base part 13 on the contacting of inclined-plane 18, and formation spacing h sees Fig. 2.At this moment, the hollow straight cylinder 20 of the endoporus of the liquid of the band pressure in the hollow cylinder 2 bottom vestibules by the runner 15 on spacing h, the coupled pole 12, hollow piston rod 4, nozzle head 5 and from side nozzle 5 ', spraying.Repeat above-mentioned action, then imbibition and injection continuously.As stop using, then can make external screw thread 9 and 8 engagements of the internal thread on the gland 24 on the nozzle head 5 as shown in Figure 2.Identical label is represented identical parts or structure in all accompanying drawings.

Claims

1. a liquid injection apparatus comprises

One container cover (1), it can spin with the opening of the container of contain fluid, and a central through hole (19) is arranged at its top;

One hollow cylinder (2), comprise one that extend radially outwardly from the top, be positioned at first flange (20) on the through hole (19), one under first flange (20), that extend radially outwardly, as to be tight against container cover (1) top inner edge second flange (21), one first shoulder (22) of subordinate side within it, and one at first shoulder (22) valve seat (23) below, tool one central through hole;

One gland (24), its centre bore post (25) is positioned at the top vestibule of hollow cylinder (2), that its outer side flanging (27) lower end has is one that extend radially inwardly, with the shoulder (26) of first flange (20) snapping of hollow cylinder (2), and the external diameter of outer side flanging (27) is greater than the internal diameter of container cover (1) top through hole (19);

One nozzle head (5), it has a part can stretch into the hollow straight cylinder (28) of centre bore post (25) endoporus of gland (24), and a side nozzle (5 ') that is communicated with hollow straight cylinder (28);

One hollow piston rod (4), hollow straight cylinder (28) close-fitting of its upper end and nozzle head (5), one radially inwardly outstanding first annular lip (29) is arranged in its endoporus, and radially outwards outstanding second annular lip (30) is arranged at the bottom of its lateral wall; And

One piston (3), the inner surface sliding-contact of its lateral surface and hollow cylinder (2), the outside sliding-contact of the bottom of its inside upper part and hollow piston rod (4), and can conflict second annular lip (30) of hollow piston rod (4) of its inboard top;

It is characterized in that, also comprise:

One coupled pole (12), it comprises diversion rod part (7) and the spring base part (13) that fuses with its lower end, described diversion rod part (7) comprises at least three circumferential evenly spaced vertical ribs (14) and the runner (15) that is formed by adjacent vertical rib (14), and each vertical rib outer lower portion also respectively has a shoulder (16); Described spring base part (13) upper outside has an inclined-plane (18); Described diversion rod part (7) and hollow piston rod (4) endoporus bottom close-fitting, and all vertical ribs (14) top is tight against first annular lip (29), and the lower end of hollow piston rod (4) is tight against the shoulder (16) in all vertical ribs (14) outside;

One spring (11), its upper end is tight against spring base part (13), and its lower end is tight against first shoulder (22); And

One steel ball (10), it places on the valve seat (23) movably, and its diameter is suitable for the central through hole of valve seat (23) is sealed;

In addition, there is an inclined-plane (17) that can contact with inclined-plane (18) sealing on the spring base part (13) the inboard bottom of described piston (3); And when second annular lip (30) of the inboard top conflict hollow piston rod (4) of piston (3), the inclined-plane (17) of piston (3) is h with the spacing on the inclined-plane (18) of spring base (13).