CN201818469U - Piston for hand pulling inflator - Google Patents
Piston for hand pulling inflator Download PDFInfo
- Publication number
- CN201818469U CN201818469U CN2010205754591U CN201020575459U CN201818469U CN 201818469 U CN201818469 U CN 201818469U CN 2010205754591 U CN2010205754591 U CN 2010205754591U CN 201020575459 U CN201020575459 U CN 201020575459U CN 201818469 U CN201818469 U CN 201818469U
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- China
- Prior art keywords
- piston
- cavity
- check
- cover plate
- hand
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- 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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- 230000000670 limiting effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 7
- 230000002457 bidirectional effect Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a piston for a hand pulling inflator, which comprises a piston body (1) provided with an inner hole (11) and an outer hole (12), and a gap (X) is arranged between the inner hole and the outer hole; the upper surface of the piston body is respectively provided with a first one-way valve hole (13) and a second one-way valve hole (14); the piston for the hand pulling inflator is characterized in that the piston body is internally provided with a first concave cavity (15) and a second concave cavity (16) which have openings facing downwards and are not communicated with each other; the first concave cavity communicates the first one-way valve hole with the inner hole, and the second concave cavity communicates the second one-way valve hole with the gap; a cover plate (4) used for covering the openings of the first concave cavity and the second concave cavity is fixed under the piston body; and the cover plate is provided with a third one-way valve hole (41) communicated with the first concave cavity and a fourth one-way valve hole (42) communicated with the second concave cavity. By adopting the piston, only one part of the cover plate is needed to be stuck and welded for fixing, therefore, the splicing and welding parts among all parts are less, and the piston is more convenient to assemble and less in time consumption of assembly.
Description
Technical field
The utility model relates to a kind of hand-pulled inflator piston.
Background technique
At present hand-pulled inflator (also being gas-filled pump) kind is quite a lot of, has a kind ofly can push away, draw the hand-pulled inflator of all inflating action in the two-way travel, this inflator to have the high advantage of charging efficiency at handle.
As the patent No. is the Chinese utility model patent " bidirectional inflating pump " of ZL00255072.5 (notification number is CN2450405Y); The patent No. is the Chinese utility model patent " a kind of bidirectional inflating pump " of ZL200620100394.9 (notification number is CN2874057Y); And the patent No. of asking among the applicant is the Chinese utility model patent " hand-pulled inflator of bidirectional inflating " of ZL201020111370.X (notification number is CN201606210U).They have all disclosed a kind of hand-pulled inflator of energy bidirectional inflating.
The piston of the hand-pulled inflator of this energy bidirectional inflating has such characteristic, internal piston is provided with the air guide chamber of giving vent to anger, an air inlet air guide chamber and, upper and lower piston face in this air inlet air guide chamber is formed with and allows air enter check-valve port in the body by air inlet air guide chamber, and the upper and lower piston face in this air guide chamber of giving vent to anger is formed with and allows air be entered check-valve port in the air guide chamber of giving vent to anger by body.
This piston has a defective, need welding and sticking four sample accessories (stopper of two sides and two valve bases) on each piston, therefore labour cost height, and these several accessories occur and do not weld jail or bonding jail and cause that gas leakage or the possibility that drops are also high.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of more convenient hand-pulled inflator piston that assembles at above-mentioned prior art present situation, and it has the advantage that assembling is more convenient and cost is low.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of hand-pulled inflator piston, include piston only, have the endoporus that connects for interior pipe inserting on this piston only, and the outer hole that supplies the outer tube inserting to connect, endoporus is positioned at outer hole, and there is the gap between the periphery wall of endoporus and the inner circle wall in outer hole, have first check-valve port and second check-valve port on the upper surface of piston only, it is characterized in that: have opening in the described piston only and disconnected each other first cavity and second cavity down, described first cavity is communicated with described first check-valve port and endoporus, described second cavity is communicated with second check-valve port and gap, the below of piston only also is fixed with the cover plate that the opening with described first cavity and second cavity covers in, and has the 3rd check-valve port that is communicated with first cavity and the 4th check-valve port that is communicated with second cavity on this cover plate.
Have the caulking groove that the perisporium with described first cavity and second cavity matches on the upper-end surface of above-mentioned cover plate, the perisporium of described first cavity and second cavity be embedded and be adhesively fixed in the described caulking groove.The inserting of the perisporium by caulking groove and first cavity and second cavity and bonding can fixing with piston only cover plate is firm.
For convenient seal ring and piston only are fixed, the lower end surface of above-mentioned piston only is provided with in order to the ringwise fixed support of seal ring to be installed.
The lower end surface of above-mentioned piston only has the annular wall of downward extension, also have two locating columns on the annular wall to lower convexity, have two locating notches and two positioning grooves on the described support bracket fastened inwall, described fixed support is set on the annular wall and locating column is inserted in the described breach and fixed support is circumferentially spacing, and the two ends of described cover plate enter respectively in the corresponding positioning groove and and with the fixed support axial limiting.The relative piston only of fixed support is fixed in acting in conjunction by annular wall, locating column and cover plate, and the easier assembling of welding relatively or be adhesively fixed promptly reduces these several accessories because of welding jail or bonding jail do not cause gas leakage or the possibility that drops.
Have a plurality of salient points that are provided with along the circle spacing on the side face of above-mentioned piston only.Because piston is in use, there is bigger space between the inwall of piston only and inflator in order to the installation seal ring, salient point is set can be rocked in inflator by the fine piston only that prevents, guarantees the stability of piston when work.
The inwall in above-mentioned outer hole has in order to connect the internal thread of outer tube.
Compared with prior art, advantage of the present utility model is: this piston only needs place of cover plate to need bonding or welding is fixed, therefore place bonding and welding is few between each parts, assemble more convenient, assembling is few man-hour of expending, and to compare cost lower with the existing piston that is used for the hand-pulled inflator of bidirectional inflating; Have again, because sealing part has only place of cover plate, so the gas leakage point significantly reduces better tightness.
Description of drawings
Fig. 1 is the utility model embodiment's a perspective view one;
Fig. 2 is the utility model embodiment's a perspective view two;
Fig. 3 is the utility model embodiment's a structure sectional view;
Fig. 4 is the perspective view of the utility model embodiment cover plate;
Fig. 5 is the perspective view of piston only among the utility model embodiment;
Fig. 6 is a support bracket fastened perspective view among the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1～6, be a preferred embodiment of the present utility model.
A kind of hand-pulled inflator piston, include piston only 1, have the endoporus 11 that connects for interior pipe 2 insertings on this piston only 1, and the outer hole 12 that supplies outer tube 3 insertings to connect, endoporus 11 is positioned at outer hole 12, and have gap X between the inner circle wall in the periphery wall of endoporus 11 and outer hole 12, the inwall in outer hole 12 has in order to connect the internal thread 121 of outer tube; Have first check-valve port 13 and second check-valve port 14 on the upper surface of piston only 1, more than be the conventional structure of the hand-pulled inflator of existing bidirectional inflating, but the patent No. of REFERENCE TO RELATED people application is the Chinese utility model patent " hand-pulled inflator of bidirectional inflating " of ZL201020111370.X (notification number is CN201606210U).
Shown in Fig. 4,5, has opening in the piston only 1 and disconnected each other first cavity 15 and second cavity 16 down, first cavity 15 is communicated with first check-valve port 13 and endoporus 11, second cavity 16 is communicated with second check-valve port 14 and gap X, the below of piston only 1 also is fixed with the cover plate 4 that the opening with first cavity 15 and second cavity 16 covers in, be to form air inlet air guide chamber between the cover plate 4 and first cavity 15, form the conductance air chamber between the cover plate 4 and second cavity 16.Have the 3rd check-valve port 41 that is communicated with first cavity 15 (being air inlet air guide chamber) and the 4th check-valve port 42 that is communicated with second cavity 16 (the air guide chamber of giving vent to anger) on this cover plate 4.
Adopt bonding way to fix between cover plate 4 and the piston only 1, specifically be the perisporium of caulking groove 43, the first cavitys 15 that match at the perisporium 151,161 that has on the upper-end surface of cover plate 4 with first cavity 15 and second cavity 16 and second cavity 16 be embedded and be adhesively fixed in the caulking groove 43.
The lower end surface of piston only 1 is provided with in order to the ringwise fixed support 6 of seal ring 5 to be installed, the two ends of seal ring 5 are compressed between the lower end surface of fixed support 6 and piston only 1, the lower end surface of piston only 1 has the annular wall 17 of downward extension, also have two locating columns 18 on the annular wall 17 to lower convexity, have two locating notches 61 and two positioning grooves 62 on the inwall of fixed support 6, as shown in Figure 6, fixed support 6 is set on the annular wall 17 and makes locating column 18 insertion breach 61 interior and fixed support 6 is circumferentially spacing, and the two ends of cover plate 4 enter respectively in the corresponding positioning groove 62 and and with fixed support 6 axial limitings.
Have a plurality of salient points 19 that are provided with along the circle spacing on the side face of piston only 1.
When using certainly corresponding valve block 7 can be installed on each check-valve port.
Because this piston has only 4 one of cover plates to be adhesively fixed a little, so place bonding and welding is few between each parts, assemble more conveniently, and it is few to assemble the man-hour of expending, and to compare cost lower with the existing piston that is used for the hand-pulled inflator of bidirectional inflating; Have again, because sealing part has only place of cover plate, so the gas leakage point significantly reduces better tightness.
Claims (6)
1. hand-pulled inflator piston, include piston only (1), have the endoporus (11) that connects for interior pipe (2) inserting on this piston only (1), and the outer hole (12) that supplies outer tube (3) inserting to connect, endoporus (11) is positioned at outer hole (12), and there is gap (X) between the inner circle wall of the periphery wall of endoporus (11) and outer hole (12), have first check-valve port (13) and second check-valve port (14) on the upper surface of piston only (1), it is characterized in that: have opening in the described piston only (1) and disconnected each other first cavity (15) and second cavity (16) down, described first cavity (15) is communicated with described first check-valve port (13) and endoporus (11), described second cavity (16) is communicated with second check-valve port (14) and gap (X), the below of piston only (1) also is fixed with the cover plate (4) that the opening with described first cavity (15) and second cavity (16) covers in, and has the 3rd check-valve port (41) that is communicated with first cavity (15) and the 4th check-valve port (42) that is communicated with second cavity (16) on this cover plate (4).
2. hand-pulled inflator piston according to claim 1, it is characterized in that: have the caulking groove (43) that the perisporium (151,161) with described first cavity (15) and second cavity (16) matches on the upper-end surface of described cover plate (4), the perisporium of described first cavity (15) and second cavity (16) be embedded and be adhesively fixed in the described caulking groove (43).
3. hand-pulled inflator piston according to claim 1 is characterized in that: the lower end surface of described piston only (1) is provided with in order to the ringwise fixed support (6) of seal ring (5) to be installed.
4. hand-pulled inflator piston according to claim 3, it is characterized in that: the lower end surface of described piston only (1) has the annular wall (17) of downward extension, also have two locating columns (18) on the annular wall (17) to lower convexity, have two locating notches (61) and two positioning grooves (62) on the inwall of described fixed support (6), the annular wall (17) that is set in described fixed support (6) goes up and makes locating column (18) to insert in the described breach (61) and fixed support (6) is circumferentially spacing, and the two ends of described cover plate (4) enter respectively in the corresponding positioning groove (62) and and with fixed support (6) axial limiting.
5. hand-pulled inflator piston according to claim 4 is characterized in that: have a plurality of salient points (19) that are provided with along the circle spacing on the side face of described piston only (1).
6. hand-pulled inflator piston according to claim 1 is characterized in that: the inwall in described outer hole (12) has in order to connect the internal thread (121) of outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205754591U CN201818469U (en) | 2010-10-22 | 2010-10-22 | Piston for hand pulling inflator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205754591U CN201818469U (en) | 2010-10-22 | 2010-10-22 | Piston for hand pulling inflator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818469U true CN201818469U (en) | 2011-05-04 |
Family
ID=43916426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205754591U Expired - Lifetime CN201818469U (en) | 2010-10-22 | 2010-10-22 | Piston for hand pulling inflator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818469U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196697A (en) * | 2014-07-14 | 2014-12-10 | 格力休闲体育用品有限公司 | Bi-directional hand inflator piston |
| CN106438282A (en) * | 2016-10-20 | 2017-02-22 | 浙江威邦机电科技有限公司 | Piston structure of dual-way hand-pulling inflation pump and inflation method of piston structure |
| CN107830322A (en) * | 2017-11-29 | 2018-03-23 | 青岛荣安机械有限公司 | The adaptive adjusting bottom of air cushion |
-
2010
- 2010-10-22 CN CN2010205754591U patent/CN201818469U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196697A (en) * | 2014-07-14 | 2014-12-10 | 格力休闲体育用品有限公司 | Bi-directional hand inflator piston |
| CN106438282A (en) * | 2016-10-20 | 2017-02-22 | 浙江威邦机电科技有限公司 | Piston structure of dual-way hand-pulling inflation pump and inflation method of piston structure |
| CN107830322A (en) * | 2017-11-29 | 2018-03-23 | 青岛荣安机械有限公司 | The adaptive adjusting bottom of air cushion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |