CN207245961U - Hand-pulled inflator switching valve - Google Patents
Hand-pulled inflator switching valve Download PDFInfo
- Publication number
- CN207245961U CN207245961U CN201720944862.9U CN201720944862U CN207245961U CN 207245961 U CN207245961 U CN 207245961U CN 201720944862 U CN201720944862 U CN 201720944862U CN 207245961 U CN207245961 U CN 207245961U
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- Prior art keywords
- switching valve
- valve body
- cavity
- manual switching
- exhausting
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Abstract
It the utility model is related to a kind of hand-pulled inflator switching valve, including upper cover, it is characterised in that：The sidepiece of the upper cover is provided with cavity, exhausting-gas hole is provided with the inner face of cavity, manual switching valve body is equipped with cavity, is provided with to connect the exhausting-gas hole and extraneous exhaust outlet on the rear end face of manual switching valve body, sealing ring is equipped between the rear end face of manual switching valve body and the inner face of cavity；In the state of manual switching valve body turns to unidirectional inflation, exhaust outlet is connected with exhausting-gas hole；In the state of manual switching valve body turns to bidirectional inflating, the exhaust outlet misplaces with exhausting-gas hole, and the periphery of sealing ring along exhausting-gas hole sets to form sealing.This switching valve can make by the tolerance of switching valve to become larger in the state of unidirectional inflation, while can also make to form excellent sealing between switching valve and the inner face of cavity, it is ensured that during bidirectional inflating, volumetric efficiency is high.
Description
Technical field
It the utility model is related to a kind of hand-pulled inflator, more particularly to a kind of hand-pulled inflator switching valve.
Background technology
In the market hand-pulled inflator (being also inflator pump) species is quite a lot of, there is the hand-pulled inflator unidirectionally inflated, and bidirectional inflating
Hand-pulled inflator, generally comprise stack shell and the upper cover arranged on stack shell top, the work operated by connecting rod be assembled with stack shell
Plug, and the handle gripped for user is equipped with connecting rod top, extend a gas tube in body lower end or upper end.Unidirectional inflation
Hand-pulled inflator, in piston moves up and down a round trip, be merely able to single stroke and aeration be provided, used effect
Rate is relatively low.The inflator pump of bidirectional inflating can push away in handle, draw action is inflated in two-way travel, and improve service efficiency.
Such as the Chinese utility model patent of Patent No. ZL00255072.5 (notification number CN2450405Y)《Two-way inflating pump》, and specially
Profit number is the Chinese utility model patent of ZL200620100394.9 (notification number CN2874057Y)《A kind of two-way inflating pump》,
They disclose a kind of inflator pump of bidirectional inflating.
The air pump of bidirectional inflating, as the size with unidirectional air pump in the case of, have a double throughput, but to one
, will be highly difficult toward pull-up when constant-pressure, because the power that back is received is too big.In order to solve this problem, generally in upper cover
On have a plug, so when pressure is too high, in the case of being difficult toward pull-up, if plug removed, air pump becomes unidirectional work
Make, rapid operation.To prevent plug from losing, it can generally be connected between plug and stack shell by rope, this causes inflator shape not
Beauty, and the multiple plug of plug can cause plug poorly sealed and gas leakage.To prevent gas leakage between plug and exhausting-gas hole, block up
Combined relatively closely between head and exhausting-gas hole, therefore plug plug is relatively elaborate, and also repeatedly plug easily causes plug and exhausting-gas hole
Between gas leakage.
There is the China of a Patent No. ZL201520364471.0 (notification number CN204716507U) for this present situation
Utility model patent《The switch valve structure of bidirectional inflating hand-pulled inflator》Disclose a kind of switch valve structure, including stack shell and set
Upper cover in stack shell top, connection upper chamber and extraneous exhausting-gas hole are provided with upper lid, are rotated to be provided with exhausting-gas hole and are cut manually
Valve is changed, is had in manual switching valve to connect upper chamber and extraneous switching channel；An angle is turned in manual switching valve
Under degree state, switching channel connection upper chamber and the external world；In the case where manual switching valve turns to another angle state, switching channel
Upper chamber is blocked to be connected with extraneous.The China of also Patent No. ZL01259675.1 (notification number CN2504401Y) is practical
New patent《Two-way inflating pump》Also disclose such a switch valve structure.
Also there are following defect for the right patent：Because exhausting-gas hole is arranged on the bottom of cavity perisporium, turned in manual switching valve
In the state of bidirectional inflating, exhaust passage and exhausting-gas hole misplace, manually switch spool periphery wall and cavity internal perisporium it
Between seal, and make to block with extraneous inside upper cover, at this moment just need between manual switching spool periphery wall and the internal perisporium of cavity
Leakproofness to get well, otherwise leakiness conductance cause volumetric efficiency reduce, because between manual switching valve and cavity perisporium formed radially it is close
Envelope, so the switching valve hand handle on upper lid, base and exhausting-gas hole are very accurate, otherwise just has gas leakage, therefore can influence air pump
Efficiency.In addition, these air pumps are typically all what plastics were done, so the tolerance in size can not possibly accomplish very little, so in life
It is very tight when upper cover always to find that switching valve hand handle is attached in production, without gas leakage, but it is difficult to use, or put into
Go it is very loose, it is easy to use, but have gas leakage.In addition the internal perisporium of manual switching spool periphery wall and cavity is relatively thin, not side
Sealing ring is just set therebetween, therefore air-tightness cannot be effectively ensured between manual switching spool and cavity.
In conclusion the switch valve structure of existing hand-pulled inflator can be further improved.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of hand-pulled inflator for above-mentioned state of the art
With switching valve, this switching valve can make to form excellent sealing between manual switching valve body and the inner face of cavity, it is ensured that be filled two-way
During gas, volumetric efficiency is high.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of hand-pulled inflator switching valve, bag
Include upper cover, it is characterised in that：The sidepiece of the upper cover is provided with cavity, is provided with the inner face of cavity to being connected inside upper cover
Exhausting-gas hole, be equipped with the cavity can have in the rotating manual switching valve body of own axes, manual switching valve body with it is outer
The installation space of boundary's connection, is provided with to connect the exhaust of the exhausting-gas hole and installation space on the rear end face of manual switching valve body
Mouthful, sealing ring is equipped between the rear end face of manual switching valve body and the inner face of cavity；Turned to unidirectionally in manual switching valve body
In the state of inflation, the exhaust outlet is connected with exhausting-gas hole；It is described in the state of manual switching valve body turns to bidirectional inflating
Exhaust outlet misplaces with exhausting-gas hole, and the periphery of the sealing ring along exhausting-gas hole sets to form sealing.
As an improvement, being additionally provided with the installation space of above-mentioned manual switching valve body prevents strainer of the impurity by exhaust outlet.
Accordingly even when when exhaust outlet is connected with exhausting-gas hole, the same larger impurity of such as sand will not enter lid by exhausting-gas hole
In (i.e. the upper chamber of inflator pump), prevent the piston in sand damage inflator pump.
As an improvement, above-mentioned manual switching valve body by cock and rear cover to being combined into, between cock and rear cover formed one
Installation space, installation space connection exhaust outlet is with extraneous, and being equipped with the installation space prevents impurity from passing through exhaust outlet
Strainer.The manual switching valve body is by two parts to being combined into, and easy to install strainer in it, strainer can annularly be arranged in peace
Fill in space, can more fully prevent impurity from entering exhausting-gas hole.If strainer is not put certainly or strainer is placed into beyond valve body
Otherwise, such valve body can also make integrative-structure.
The center of above-mentioned cavity inner face forms the first connecting pole, and threaded hole is provided with the first connecting pole, and rear cover is arranged
It can rotate on the first connecting pole and around own axes, the rear cover forms the rear end face of manual switching valve body, and cock is equipped with
Second connecting pole, is provided with perforation on the second connecting pole, has screw through being threadedly coupled with the threaded hole after perforation.This structure is
Manual switching valve body is installed on a kind of structure in cavity, which is easy to the installation of manual switching valve body.
Preferably, the ring wall of above-mentioned rear cover has part to stretch into cock inner cavity, the inner hole wall of cock is equipped with to rear cover
Ring wall carries out spacing interior omoplate, and the ring wall periphery of rear cover is provided with a plurality of slot axially set, and the inner hole wall of cock is equipped with
The a plurality of joint bar to be inserted into the slot.The structure can make to assemble in place between rear cover and cock, and after being separately set
Processing and forming is easy in lid and cock.
Further improve, the outer ring surface of above-mentioned cavity is equipped with raised limiting section, and the outer peripheral edge of the cock is equipped with convex
Rise to carry out the annular shoulder block of gear with the outer ring surface of cavity, the inner surface of annular shoulder block is equipped with matches somebody with somebody with limiting section gear
Arc-shaped limiting slot；In the state of manual switching valve body turns to unidirectional inflation, the limiting section and limiting slot side
Side wall contact, in the state of manual switching valve turns to bidirectional inflating, the side wall of the limiting section and limiting slot opposite side
Contact.Coordinated by the gear of limiting section and limiting slot, can indicate that our manual switching valve bodies turn to each operating position shape
State, convenient operation.
As an improvement, above-mentioned cock is equipped with the wrench portion for stretching out and facilitating hand to pull.Exposed wrench portion is easy to rotation
Change hands dynamic switching valve.
It is further to improve, observation window is provided with the top perisporium of above-mentioned cavity, is set on the outer circumferential surface of manual switching valve body
There is the first designated symbol for showing unidirectional airing form and to show the second designated symbol of bidirectional inflating mode, in hand
Dynamic switching valve is turned in the state of unidirectional inflation, and first designated symbol manifests observation window, in manual switching valve body
Turn in the state of bidirectional inflating, second designated symbol manifests observation window.So user can be looked into by observation window
The designated symbol seen on manual switching valve body outer circumferential surface determines that switch valve structure is in unidirectional airing form or two-way fills with straight tube
Gas mode state, easy to use, humanization designing.
Compared with prior art, the utility model has the advantage of：This switching construction need to only rotate switching valve, without inciting somebody to action
Switching valve is extracted, and can realize the switching of one-way or bi-directional inflation, easy to operate, switching valve is not easy to lose, and structure is simpler
It is clean；What is more important, exhausting-gas hole are arranged on the inner face of cavity, and exhaust outlet is arranged on the rear end face of manual switching valve body
On, because cavity inner face and manual switching valve body rear end face area it is big, therefore exhausting-gas hole and exhaust outlet can do it is larger,
The tolerance by exhausting-gas hole and exhaust outlet will be increased, in the state of unidirectional inflation, hand-pulled inflator charge operation can be caused more to save
Power；Further more, being equipped with sealing ring between the rear end face of manual switching valve body and the inner face of cavity, make manual switching valve body and cavity
Inner face between form excellent sealing, it is ensured that during bidirectional inflating, volumetric efficiency is high.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram (unidirectional inflated condition) of the utility model embodiment；
Fig. 2 is the sectional view (unidirectional inflated condition) of the utility model embodiment；
Fig. 3 is the dimensional structure diagram (bidirectional inflating state) of the utility model embodiment；
Fig. 4 is the sectional view (bidirectional inflating state) of the utility model embodiment.
Fig. 5 is the three-dimensional exploded view one of the utility model embodiment；
Fig. 6 is the three-dimensional exploded view two of the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
As shown in figs. 1 to 6, it is a preferred embodiment of the utility model.
A kind of hand-pulled inflator switching valve, including upper cover 1, the sidepiece of upper cover 1 are provided with cavity 11, the opening court of cavity 11
Outside, be provided with the exhausting-gas hole 5 connect with the inside of upper cover 1 on the inner face of cavity 11, inside upper cover 1 in inflator pump as cylinder
Upper chamber in body.
Being equipped with cavity 11 can open on the rotating manual switching valve body 3 of own axes, the rear end face of manual switching valve body 3
Have to connect exhausting-gas hole 5 and extraneous exhaust outlet 6, set between the rear end face of manual switching valve body 3 and the inner face of cavity 11
There is sealing ring 4；In the state of manual switching valve body 3 turns to unidirectional inflation, as shown in Figure 1, 2, exhaust outlet 6 and exhausting-gas hole 5
Connect, by being in communication with the outside after exhausting-gas hole 5, exhaust outlet 6 inside such upper cover 1；Two-way fill is turned in manual switching valve body 3
In the state of gas, as shown in Figure 3,4, exhaust outlet 6 misplaces with exhausting-gas hole 5, and the periphery of sealing ring 4 along exhausting-gas hole 5 sets and to be formed
Sealing, the position that the rear end face of manual switching valve body 3 does not have opening blocks exhausting-gas hole 5.
By cock 31 and rear cover 32 to being combined into, cock 31 is equipped with to extension manual switching valve body 3 in the present embodiment
Stretch the wrench portion 313 for facilitating hand to pull.An installation space P, installation space P connection rows are formed between cock 31 and rear cover 32
Gas port 6 is equipped with installation space P with extraneous and prevents strainer 2 of the impurity by exhaust outlet 12.If certainly do not put strainer or
Person's strainer prevents otherwise beyond valve body, and such valve body can also make integrative-structure.
The center of 11 inner face of cavity forms the first connecting pole 7, and threaded hole 71, rear cover 32 are provided with the first connecting pole 7
It is set on the first connecting pole 7 and can be rotated around own axes, rear cover 32 forms the rear end face of manual switching valve body 3, rear cover 32
The back side be equipped with the caulking groove 322 being embedded for sealing ring 4, such exhaust outlet 6 and sealing ring 4 are arranged on rear cover 32, cock 31
The second connecting pole 8 is equipped with, perforation 81 is provided with the second connecting pole 8, has screw (screw is not shown in drawing) to wear
It is threadedly coupled behind hole 81 with the threaded hole 71.
The ring wall of rear cover 32 has part to stretch into 31 inner cavity of cock, the inner hole wall of cock 31 be equipped with to the ring wall of rear cover 32 into
The spacing interior omoplate 311 of row, the ring wall periphery of rear cover 32 are provided with a plurality of slot 321 axially set, on the inner hole wall of cock 31
Joint bar 312 equipped with a plurality of to be inserted into the slot 321.
The outer ring surface of cavity 11 is equipped with raised limiting section 9, the outer peripheral edge of the cock 31 be equipped with it is raised to
The outer ring surface of cavity 11 carries out the annular shoulder block 313 of gear, and the inner surface of annular shoulder block 313 is equipped with matches somebody with somebody 9 with limiting section gear
Arc-shaped limiting slot 10；In the state of manual switching valve body 3 turns to unidirectional inflation, limiting section 9 and limiting slot 10 1
The side wall contact of side, in the state of manual switching valve 3 turns to bidirectional inflating, the side of limiting section 9 and 10 opposite side of limiting slot
Wall contacts.
Observation window 12 is provided with the top perisporium of cavity 11, the outer circumferential surface of manual switching valve body 3 is equipped with to show list
The first designated symbol 33 to airing form and to show the second designated symbol 34 of bidirectional inflating mode, the of the present embodiment
One designated symbol 33 is digital " 1 ", and the second designated symbol 34 is digital " 2 ", turns to what is unidirectionally inflated in manual switching valve body 3
Under state, first designated symbol 33 manifests observation window 12, and the state of bidirectional inflating is turned in manual switching valve body 3
Under, second designated symbol 34 manifests observation window 12.
This switching construction only needs rotation manual switching valve 3, manually the exhaust outlet 6 on switching valve 3 and exhausting-gas hole 5
Whether connection, the switching of one-way or bi-directional inflation can be realized, it is easy to operate and manual without manual switching valve body 3 is extracted
Switching valve 3 is not easy to lose, and structure is more succinct；What is more important, exhausting-gas hole 5 are arranged on the inner face of cavity 11, exhaust
Mouth 6 is arranged on the rear end face of manual switching valve body 3 (rear cover 32), after the inner face and manual switching valve body 3 of cavity 111
The area of end face is big, therefore exhausting-gas hole 5 and exhaust outlet 6 can do larger, will increase the tolerance by exhausting-gas hole 5 and exhaust outlet 6,
In the state of unidirectional inflation, it can make it that hand-pulled inflator charge operation is more effortless；Further more, the rear end face of manual switching valve body 3 with
Sealing ring 4 is equipped between the inner face of cavity 11, formation is good close between making the inner face of manual switching valve body 3 and cavity 11
Envelope, it is ensured that during bidirectional inflating, volumetric efficiency is high.
Although the preferred embodiment of the present invention described in detail above, it is to be clearly understood that for this area
Technical staff for, the invention may be variously modified and varied.That is made within the spirit and principles of the invention appoints
What modification, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of hand-pulled inflator switching valve, including upper cover (1), it is characterised in that：The sidepiece of the upper cover (1) is provided with cavity
(11), the exhausting-gas hole (5) to be connected with upper cover (1) inside is provided with the inner face of cavity (11), is set in the cavity (11)
Have can be provided with to connect on the rotating manual switching valve body (3) of own axes, the rear end face of manual switching valve body (3) it is described
Exhausting-gas hole (5) and the exhaust outlet (6) in the external world, are equipped between the rear end face of manual switching valve body (3) and the inner face of cavity (11)
Sealing ring (4)；In the state of manual switching valve body (3) turns to unidirectional inflation, the exhaust outlet (6) connects with exhausting-gas hole (5)
It is logical；In the state of manual switching valve body (3) turns to bidirectional inflating, the exhaust outlet (6) misplaces with exhausting-gas hole (5), and institute
The periphery for stating sealing ring (4) along exhausting-gas hole (5) sets to form sealing.
2. hand-pulled inflator switching valve according to claim 1, it is characterised in that：The manual switching valve body (3) is by revolving
(31) and rear cover (32) are filled in being combined into, and an installation space (P), the installation space are formed between cock (31) and rear cover (32)
(P) exhaust outlet (6) is connected with extraneous, and prevents strainer of the impurity by exhaust outlet (12) in interior be equipped with of the installation space (P)
(2)。
3. hand-pulled inflator switching valve according to claim 2, it is characterised in that：The center of cavity (11) inner face
The first connecting pole (7) is formed, threaded hole (71) is provided with the first connecting pole (7), rear cover (32) is set in the first connecting pole (7)
Upper and can rotate around own axes, the rear end face of rear cover (32) the composition manual switching valve body (3), cock (31) is equipped with the
Two connecting poles (8), are provided with perforation (81) on the second connecting pole (8), have screw through perforation (81) afterwards with the threaded hole (71)
It is threadedly coupled.
4. hand-pulled inflator switching valve according to claim 3, it is characterised in that：The ring wall of the rear cover (32) has part
Stretching into cock (31) inner cavity, the inner hole wall of cock (31) is equipped with carries out spacing interior omoplate (311) to the ring wall of rear cover (32),
The ring wall periphery of rear cover (32) is provided with a plurality of slot (321) axially set, the inner hole wall of cock (31) be equipped with it is a plurality of to
The joint bar (312) being inserted into the slot (321).
5. hand-pulled inflator switching valve according to claim 3, it is characterised in that：Set on the outer ring surface of the cavity (11)
There is a limiting section (9) of protrusion, the outer peripheral edge of the cock (31) is equipped with raised being kept off with the outer ring surface of cavity (11)
The annular shoulder block (313) of position, the inner surface of annular shoulder block (313) are equipped with arc-shaped spacing with (9) with limiting section gear
Groove (10)；In the state of manual switching valve body (3) turns to unidirectional inflation, the limiting section (9) and limiting slot (10) side
Side wall contact, in the state of manual switching valve (3) turns to bidirectional inflating, the limiting section (9) and limiting slot (10) are another
The side wall contact of side.
6. hand-pulled inflator switching valve according to claim 3, it is characterised in that：The cock (31) is equipped with to extension
Stretch the wrench portion (313) for facilitating hand to pull.
7. according to any hand-pulled inflator switching valve of claim 1~6, it is characterised in that：The top of the cavity (11)
It is provided with observation window (12) on portion's perisporium, the outer circumferential surface of manual switching valve body (3) is equipped with to show the of unidirectional airing form
One designated symbol (33) and to show the second designated symbol (34) of bidirectional inflating mode, rotates in manual switching valve body (3)
To unidirectional inflation, first designated symbol (33) manifests observation window (12), is rotated in manual switching valve body (3)
To bidirectional inflating, second designated symbol (34) manifests observation window (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720944862.9U CN207245961U (en) | 2017-07-31 | 2017-07-31 | Hand-pulled inflator switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720944862.9U CN207245961U (en) | 2017-07-31 | 2017-07-31 | Hand-pulled inflator switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207245961U true CN207245961U (en) | 2018-04-17 |
Family
ID=61880136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720944862.9U Active CN207245961U (en) | 2017-07-31 | 2017-07-31 | Hand-pulled inflator switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207245961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412729A (en) * | 2018-04-25 | 2018-08-17 | 吴小进 | A kind of bitubular hand-pulled inflator |
-
2017
- 2017-07-31 CN CN201720944862.9U patent/CN207245961U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412729A (en) * | 2018-04-25 | 2018-08-17 | 吴小进 | A kind of bitubular hand-pulled inflator |
| CN108412729B (en) * | 2018-04-25 | 2023-09-01 | 余姚迈杰克塑料科技有限公司 | Double-cylinder hand-pulling inflator |
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