CN2723725Y - Press structure for hand press pump - Google Patents
Press structure for hand press pump Download PDFInfo
- Publication number
- CN2723725Y CN2723725Y CN 200420082516 CN200420082516U CN2723725Y CN 2723725 Y CN2723725 Y CN 2723725Y CN 200420082516 CN200420082516 CN 200420082516 CN 200420082516 U CN200420082516 U CN 200420082516U CN 2723725 Y CN2723725 Y CN 2723725Y
- Authority
- CN
- China
- Prior art keywords
- piston
- push rod
- piston push
- hollow cylinder
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a press structure for a hand press pump, comprising a cover covered on a container and a gland bush sheathed on the cover. The gland bush is upward meshed with a nozzle, and a spring is positioned between the nozzle and the gland bush; a hollow cylinder is penetrated through the center holes of the cover and the gland bush to enter the container, and the other end of the hollow cylinder fits the gland bush; a piston push rod is arranged in the hollow cylinder, the upper end of the piston push rod is inserted in the nozzle, and the lower end of the piston push rod extends into a piston and extends to a valve ball positioned on the outlet of the hollow cylinder; the outside diameter of a section near the lower end of the piston push rod is reduced, the section near the lower end of the piston push rod is provided with a suction port and two shaft shoulders, and a connecting rod on the piston is fitted between the two shaft shoulders; a suction surface is formed in the piston push rod near the lower part of the suction port to divide the interior of the piston push rod into an upper part and a lower part, the piston push rod above the suction surface is the part of a hollow piston shaft to form a content channel, and the piston push rod under the suction surface is the part of a piston rod. The press structure for a hand press pump of the utility model has the advantages of simple structure and simple assembling process. When the piston falls, the suction of the content is smooth; when the piston rises, the content can not flow out of the suction port.
Description
Technical field
The utility model relates to a kind of quantitatively spue hand pump of liquid in container content of combining with container and presses laminated structure.
Background technique
The structure of existing hand pump is included in and is assembled with a lid on the container, with the hollow cylinder of lid assembling and piston shaft with content passage in a gland of hollow cylinder upper end assembling.Piston shaft has the content passage, and a spring is put between a nozzle and the gland, and nozzle is assembled insertion mutually with piston shaft.External thread part on nozzle internal thread and the gland ' screw togather also is provided with the valve ball in hollow cylinder cylinder bottom.
Yet, for the piston that prevents to be inserted into the piston shaft lower end moves or comes off, as shown in Figure 1, manufactured piston rod 1 in addition and combined with piston, and passing through the content inlet hole suction content that the piston rod bottom surface forms, process piston shaft 2 is incorporated into nozzle and spues again.Owing to making cost, the piston rod of additionally having made fixed piston increases, the assembling procedure complexity, and piston descends, and the content suction is not sufficiently oily when compressing, the closing function of content inlet hole did not force suction to reduce when piston rose, the former nozzle of tightening has slightly and unclamps when not using, and the content in the container is incorporated in the hollow cylinder.
Summary of the invention
Above-mentioned defective in view of prior art, the purpose of this utility model is to provide a kind of laminated structure of pressing of hand pump, it is simple in structure, assembling procedure is simple, and content sucked smooth and easyly when piston descended compression, can guarantee that content can not flow out from inlet hole when piston rises.
For achieving the above object, the utility model provides a kind of laminated structure of pressing of hand pump, comprise that one is placed on the lid in the vessel port, be set in the gland on the described lid, described gland outer surface be provided with outside thread with a nozzle on internal thread engagement, a spring is between described nozzle and gland, a hollow cylinder passes the center hole of described lid, described gland, the one end enters in the container, and the other end cooperates with described gland; One piston push rod places described hollow cylinder, and insert in the described nozzle its upper end, and the lower end is stretched into one and is arranged in the piston of described hollow cylinder, and stretches out piston and stretch to a valve ball that is positioned at described hollow cylinder outlet port; It is characterized in that, described piston push rod forms two shaft shoulder portions near one section external diameter of lower end less than remaining part, connecting rod on the described piston is engaged between described two shaft shoulder portions, and on the axial wall of this part, be provided with inlet hole, in near the piston push rod below the described inlet hole, be formed with a suction face and described piston push rod inside is divided into upper and lower two parts, the above piston push rod of described suction face constitute the piston shaft part and be hollow to form a content passage, the following piston push rod of suction face constitutes the piston rod part.
Preferably, also be provided with a circle sealing projection on the inwall of described hollow cylinder lower end, cooperate so that described piston push rod stretches out an end of described piston.
Preferably, described inlet hole has two.
By said structure of the present utility model, piston push rod has played the effect of conventional piston bar and piston shaft, makes easy to make, simple in structure; Simultaneously, owing on piston push rod, be provided with the reduced diameter section and form upper and lower two shaft shoulders, and piston can stably be moved along piston shaft; In addition, the drive fit of sealing projection makes in handling process on piston push rod lower end and the hollow cylinder, even nozzle unclamps a little, does not also have content and sucks in the hollow cylinder.
Description of drawings
Fig. 1 is the decomposing schematic representation of pressing piston rod and piston shaft in the laminated structure of traditional hand pump;
Fig. 2 be the utility model hand pump press the laminated structure sectional view, wherein piston push rod is in the decline state and nozzle is in locking state;
Fig. 3 is the enlarged view of A portion among Fig. 2, is in the situation of decline state with further expression piston;
Fig. 4 be the utility model hand pump press the laminated structure sectional view, wherein piston push rod is in propradation and nozzle is in open mode;
Fig. 5 is the enlarged view of B portion among Fig. 4, is in the situation of propradation with further expression piston push rod;
Fig. 6 is the exploded perspective view of piston and piston push rod in the utility model.
Embodiment
The utility model hand pump press laminated structure be used for container combination to extrude the liquid contents in the container quantitatively.As shown in the figure, press laminated structure and comprise that one is placed on the lid 1 on container C (part that dots among the figure) opening, on lid 1, also be arranged with a gland 2, gland 2 outer surfaces be provided with outside thread with a nozzle 3 on internal thread twist and to close, a spring 4 is between described nozzle 3 and gland 2.One hollow cylinder 5 passes the hole of described lid 1, gland 2, and the one end enters in the container C, and the other end cooperates with gland 2.One piston push rod 6 places hollow cylinder 5, and insert in nozzle 3 its upper end, and the lower end is stretched into one and is arranged in the piston 7 of hollow cylinder 5, and stretches out piston and stretch to the valve ball 8 that is positioned at hollow cylinder 5 outlet ports.
Further as shown in Figure 6, in the utility model, piston push rod 6 less than remaining part, and is provided with inlet hole 61 near one section external diameter of lower end on the axial wall of this part, and inlet hole 61 is two in the present embodiment.Because this part reduced diameter, and on the piston push rod outer wall, form two shaft shoulder portions 62,62 ', the connecting rod 71 on the piston 7 be engaged in this two shaft shoulder portions 62,62 ' between, not steady to prevent piston moving on piston shaft.In near the piston shaft below the inlet hole 61, be formed with a suction face 63 and piston push rod 6 inside are divided into upper and lower two parts, the above piston push rod of this suction face constitute be equivalent to the piston shaft part 611 of conventional piston axle and be hollow to form a content passage 64, the following piston push rod of suction face constitutes the piston rod part 612 that is equivalent to the conventional piston bar.
In addition, in the present embodiment, also be provided with a circle sealing projection 51 on the hollow cylinder 5 lower end inwalls, can closely cooperate with it so that be equivalent to the piston rod part 612 of conventional piston bar on the piston push rod.
Shown in Fig. 2 and 3, piston push rod 6 is in the decline state among the figure, nozzle 3 is twisted and is combined on the gland 2, and this moment, entire container was in non-working condition, and spring 4 is in compressive state.Under this state, piston push rod 6 is pressed pressure downwards, and the piston 7 on the piston push rod 6 rises in hollow cylinder 5, and inlet hole 61 exposes, and the residue content in the hollow cylinder 5 can be discharged in the content passage 64 through inlet hole 61, and discharges from nozzle 3.Yet the hollow cylinder 5 interior pressure that produce because of piston push rod 6 decline processes make 8 declines of valve ball cut off contents suction hollow cylinders.
Under user mode, turn on nozzle 3, press laminated structure shown in Figure 4 and 5, this moment, the effect owing to spring 4 was risen piston push rod 6, and piston 7 declines, and closed inlet hole 61.Owing to the effect of negative pressure, valve ball 8 breaks away from the outlet of hollow cylinders 5 simultaneously, and container contents enters in the hollow cylinder.At this moment, press downwards and press nozzle 3 that piston push rod 6 is descended, inlet hole 61 is exposed in 7 risings of piston, and content passage 64, the nozzle 3 of the content in the hollow cylinder 5 in piston push rod spues outside the container.
In the utility model, piston push rod has played the effect of conventional piston bar and piston shaft, makes easy to make, simple in structure; Simultaneously, owing on piston push rod, be provided with the reduced diameter section and form upper and lower two shaft shoulders, and piston can stably be moved along piston push rod; In addition, the drive fit of sealing projection makes in handling process on piston push rod lower end and the hollow cylinder, even nozzle unclamps a little, does not also have content and sucks in the hollow cylinder.
Claims (3)
1. a hand pump presses laminated structure, comprise that one is placed on the lid (1) in the vessel port, be set in the gland (2) on the described lid (1), described gland (2) outer surface be provided with outside thread with a nozzle (3) on internal thread engagement, one spring (4) is positioned between described nozzle (3) and the gland (2), one hollow cylinder (5) passes the center hole of described lid (1), described gland (2), and the one end enters in the container, and the other end cooperates with described gland (2); One piston push rod (6) places described hollow cylinder (5), insert in the described nozzle (3) its upper end, the lower end is stretched into one and is arranged in the piston (7) of described hollow cylinder (5), and stretches out piston and stretch to a valve ball (8) that is positioned at described hollow cylinder (5) outlet port; It is characterized in that,
Described piston push rod (6) forms two shaft shoulder portions (62 near one section external diameter of lower end less than remaining part, 62 '), connecting rod (71) on the described piston (7) is engaged in described two shaft shoulder portions (62,62 ') between, and on the axial wall of this part, be provided with inlet hole (61), in piston push rod, be formed with a suction face (63) and described piston push rod (6) inside is divided near described inlet hole (61) below, following two parts, the above described piston push rod of described suction face (63) constitute piston shaft part (611) and be hollow to form a content passage (64), the following described piston push rod of described suction face (63) constitutes piston rod part (612).
Hand pump as claimed in claim 1 press laminated structure, it is characterized in that, also be provided with a circle sealing projection (51) on the inwall of described hollow cylinder (5) lower end cooperate so that described piston push rod (6) stretches out an end of described piston (7).
Hand pump as claimed in claim 1 or 2 press laminated structure, it is characterized in that described inlet hole has two (61,61 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420082516 CN2723725Y (en) | 2004-09-03 | 2004-09-03 | Press structure for hand press pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420082516 CN2723725Y (en) | 2004-09-03 | 2004-09-03 | Press structure for hand press pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723725Y true CN2723725Y (en) | 2005-09-07 |
Family
ID=35037352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420082516 Expired - Lifetime CN2723725Y (en) | 2004-09-03 | 2004-09-03 | Press structure for hand press pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723725Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101317009B (en) * | 2005-12-28 | 2010-05-26 | 日产柴油机车工业株式会社 | Operation aid for manual pump |
-
2004
- 2004-09-03 CN CN 200420082516 patent/CN2723725Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101317009B (en) * | 2005-12-28 | 2010-05-26 | 日产柴油机车工业株式会社 | Operation aid for manual pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140903 Granted publication date: 20050907 |