CN208466240U - A kind of hand-hold washer water gun nozzle - Google Patents
A kind of hand-hold washer water gun nozzle Download PDFInfo
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- CN208466240U CN208466240U CN201820767510.5U CN201820767510U CN208466240U CN 208466240 U CN208466240 U CN 208466240U CN 201820767510 U CN201820767510 U CN 201820767510U CN 208466240 U CN208466240 U CN 208466240U
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- pressure
- pressure release
- exhalant canal
- back cavity
- pump housing
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Abstract
The utility model discloses a kind of hand-hold washer water gun nozzles, including shell and it is arranged in the intracorporal pump housing of shell, intake tunnel and exhalant canal, the pump housing includes inlet and outlet, water inlet is connected to intake tunnel, water outlet is connected to exhalant canal, feature is: the pressure release back cavity being respectively communicated with intake tunnel and exhalant canal is additionally provided in shell, pressure relief opening is provided on exhalant canal, pressure release back cavity is connected to by pressure relief opening with exhalant canal, the pressure relief device for being opened and closed pressure relief opening is provided in pressure release back cavity, advantage is: when exhalant canal hydraulic pressure is more than setting maximum value, pressure relief device opens pressure release back cavity entrance, water flow in exhalant canal can flow into pressure release back cavity immediately, enter the pump housing together with water flow in remittance intake tunnel and forms interior circulation, keep the use of cleaning machine more safe and reliable, prevention The possibility of pump housing damage or short circuit caused by being blocked because of high pressure, and structure is simple, manufacturing cost is low.
Description
Technical field
The utility model relates to hand-hold washer technical field more particularly to a kind of hand-hold washer water gun nozzles.
Background technique
Cleaning machine is applied in people's lives more and more widely as a kind of cleaning device, is people's lives band
Great convenience is carried out.Cleaning machine can be used for cleaning automobile, door and window, garden road etc., easy to use, safe and efficient.Hand-held is clear
Washing machine figure is small and exquisite, and mobile and use is more convenient, is typically provided with the pump housing and water stream channel inside to export high pressure water flow outward.
Existing hand-hold washer is easy to appear the case where exhalant canal blocks, makes the pump housing and water since high pressure is discharged
It is in high pressure conditions in circulation road, influences cleaning machine use, it is serious to will lead to pump housing damage, short circuit, shorten hand-held
The service life of cleaning machine.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the utility model provides that a kind of structure is simple, anti-high pressure is stifled
The hand-hold washer water gun nozzle of plug, use are more safe and reliable.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of hand-hold washer water gun nozzle,
Including shell and the intracorporal pump housing of the shell, intake tunnel and exhalant canal are set, the pump housing include water inlet and
Water outlet, the water inlet are connected to the intake tunnel, and the water outlet is connected to the exhalant canal, described
Shell in be additionally provided with the pressure release back cavity being respectively communicated with the intake tunnel and the exhalant canal, described goes out
Pressure relief opening is provided on aquaporin, the pressure release back cavity is connected to by the pressure relief opening with the exhalant canal, institute
The pressure relief device for being opened and closed the pressure relief opening is provided in the pressure release back cavity stated.
In some embodiments, the pressure relief device includes relief valve and pressure release spring, the top of the relief valve
Head end is matched with the pressure relief opening, and the other end of the relief valve is connected with one end of the pressure release spring, institute
The other end for the pressure release spring stated is abutted with the cavity wall of the pressure release back cavity, when nature described in relief valve top
End is embedded in the pressure relief opening under the effect of elasticity, when pressure release state described in the top end of relief valve be detached from the pressure release
Mouthful.Pressure relief device has preferably effect as a result, and realizes that pressure release flows back automatically without extra members, and structure is simple.
In some embodiments, the hydraulic pressure in the exhalant canal is more than the setting maximum pressure of the pressure release spring
When force value, the top end of the relief valve is detached from the pressure relief opening.It is adjusted as a result, by actual tests and determines pressure release bullet
The setting maximum pressure value of spring, wide adaptability ensure the security reliability of pressure release reflux unit.
It in some embodiments, further include the first connecting tube and the second connecting tube, the top of first connecting tube
Rabbet with the lower part of second connecting tube, the inner cavity of first connecting tube, second connecting tube inner cavity and
The pressure release back cavity is sequentially communicated along water (flow) direction, the top of the bottom end of the pressure release spring and second connecting tube
End abuts.It is made of as a result, two-part pipe, while realizing function, convenient for manufacture processing and assembling, is also convenient for replacement dimension
Shield.
In some embodiments, the company of being provided in the second connection tube cavity of the over top of first connecting tube
Logical accommodating cavity, the internal diameter of the accommodating cavity are greater than the internal diameter of the intake tunnel, are provided with only in the accommodating cavity
Closing the intake tunnel in an inactive state prevents the antipriming of liquid or air inversion.Make air and liquid as a result,
Body will not generate adverse current, the pump housing can be allowed when working again, without waiting for lasting water outlet, improve working efficiency.
In some embodiments, the pump housing is connect by main shaft with external power supply, by the external impetus
Source rotation driving.Water gun nozzle and cleaning machine base detachable connection, the pump housing, can be flexible by external power source drive is arranged in
It selects, manufacture and operation are more convenient.
Compared with the prior art, the advantages of the utility model are: by being arranged and intake tunnel and water outlet in shell
The pressure release back cavity that channel is respectively communicated with, is arranged pressure relief device in pressure release back cavity, and pressure relief device is by pressure release when nature
The closing of back cavity entrance, high pressure water flow are normally sprayed by exhalant canal；It is more than when exhalant canal generation high pressure blocking makes hydraulic pressure
When setting maximum pressure value, pressure relief device opens pressure release back cavity entrance, and the water flow in exhalant canal can flow immediately as a result,
Enter pressure release back cavity, and directly import in intake tunnel and enter from the inlet the pump housing together with water flow, forms circulation in water gun nozzle,
Keep the use of cleaning machine more safe and reliable, the possibility of pump housing damage or short circuit caused by preventing because of high pressure blocking, and structure
Simply, manufacturing cost is low.
Detailed description of the invention
Fig. 1 is a kind of structure sectional view of hand-hold washer water gun nozzle of the utility model；
Fig. 2 is the partial enlarged view of part A in Fig. 1.
Wherein: shell 1, the pump housing 2, water inlet 21, water outlet 22, intake tunnel 3, exhalant canal 4, pressure relief opening 41, pressure release
Back cavity 5, pressure relief device 6, relief valve 61, pressure release spring 62, the first connecting tube 7, the second connecting tube 8, accommodating cavity 9, sealing dress
10 are set, main shaft 11.
Specific embodiment
A kind of hand-hold washer water gun nozzle of the utility model is described in further detail below in conjunction with attached drawing, but is not made
For the restriction to the utility model.
Embodiment one
As shown, a kind of hand-hold washer water gun nozzle, including shell 1 and the pump housing being arranged in shell 12, water inlet
Channel 3 and exhalant canal 4, the pump housing 2 include water inlet 21 and water outlet 22, and water inlet 21 is connected to intake tunnel 3, water outlet 22
It is connected to exhalant canal 4, the pressure release back cavity 5 being respectively communicated with intake tunnel 3 and exhalant canal 4 is additionally provided in shell 1, out
Pressure relief opening 41 is provided on aquaporin-4, pressure release back cavity 5 is connected to by pressure relief opening 41 with exhalant canal 4, in pressure release back cavity 5
It is provided with the pressure relief device 6 for being opened and closed pressure relief opening 41.
Embodiment two
As shown, a kind of hand-hold washer water gun nozzle, remaining structure are the same as example 1, difference exists
In: in the present embodiment, pressure relief device 6 includes relief valve 61 and pressure release spring 62, top end and 41 phase of pressure relief opening of relief valve 61
Cooperation, the other end of relief valve 61 are connected with one end of pressure release spring 62, the other end and pressure release back cavity 5 of pressure release spring 62
Cavity wall abut, the top end of relief valve 61 is embedded in pressure relief opening 41 under the effect of elasticity when nature, returns to be closed pressure release
Circulation road is normal to be discharged.In the present embodiment, when the hydraulic pressure in exhalant canal 4 is more than the setting maximum pressure value of pressure release spring 62
When, it is in pressure release state, the top end of relief valve 61 is detached from pressure relief opening 41, so that pressure release return flow line is connected to, in exhalant canal 4
Water flow can flow into pressure release back cavity 5 immediately, and directly import in intake tunnel 3 and enter the pump housing from water inlet 21 together with water flow
2, form circulation in water gun nozzle.In other embodiments, relief valve 61 can also be that other any can be realized above-mentioned function
Structure and shape, and it is without being limited thereto.
Embodiment three
As shown, a kind of hand-hold washer water gun nozzle, remaining structure is identical as embodiment two, and difference exists
In: it further include the first connecting tube 7 and the second connecting tube 8 in the present embodiment, the top of the first connecting tube 7 and the second connecting tube 8
Lower part interlocking, the inner cavity of the first connecting tube 7, the inner cavity of the second connecting tube 8 and pressure release back cavity 5 are sequentially communicated along water (flow) direction,
The bottom end of pressure release spring 62 is abutted with the top of the second connecting tube 8.
Example IV
As shown, a kind of hand-hold washer water gun nozzle, remaining structure is identical as embodiment three, and difference exists
In: in the present embodiment, it is provided with the accommodating cavity 9 of connection in 8 inner cavity of the second connecting tube of the over top of the first connecting tube 7, holds
The internal diameter for setting chamber 9 is greater than the internal diameter of intake tunnel 3, is provided with only that closing intake tunnel 3 is anti-in an inactive state in accommodating cavity 9
The only antipriming 10 of liquid or air inversion.
A kind of hand-hold washer water gun nozzle of the utility model, with cleaning machine base detachable connection, the pump housing 2 passes through master
Axis 11 is connect with external power supply (not shown), is rotated and is driven by external power supply, which may include that all are able to drive
The structure of pump housing rotary motion, such as: motor can be manually rotated mechanism etc., and be not limited only to this.One kind of the utility model is hand-held
The working principle of formula cleaning machine water gun nozzle is as follows: the power source drive pump housing 2 works, and liquid flows through intake tunnel 3 from water inlet 21
Into the pump housing 2, pressure relief device 6 is nature at this time, by 5 entrance of pressure release back cavity (i.e. the pressure relief opening 41 of exhalant canal 4)
Closing, high pressure water flow are normally sprayed by exhalant canal 4；Hydraulic pressure is set to be more than that setting is maximum when high pressure blocking occurs for exhalant canal 4
When pressure value, compressing pressure relief device 6 opens 5 entrance of pressure release back cavity, and the water flow in exhalant canal 4 can flow immediately as a result,
Enter pressure release back cavity 5, and directly import in intake tunnel 3 and enter the pump housing 2 from water inlet 21 together with water flow, is formed in water gun nozzle
Circulation keeps the use of cleaning machine more safe and reliable, the possibility of the damage of the pump housing 2 or short circuit caused by preventing because of high pressure blocking,
And structure is simple, manufacturing cost is low.
It is worth noting that, the above is only the preferred embodiment of the present invention, it is practical new not thereby to limit this
The scope of patent protection of type, the utility model can also carry out the improvement of material and structure to the construction of above-mentioned various components,
Either it is replaced using technically equivalent ones.Therefore, the specification of the utility model is applied and diagramatic content made by equivalent knot
Structure variation, directly or indirectly applies to other correlative technology fields and is similarly all contained in the range that the utility model is covered
It is interior.
Claims (6)
1. a kind of hand-hold washer water gun nozzle including shell and is arranged in the intracorporal pump housing of the shell, intake tunnel and goes out
Aquaporin, the pump housing include inlet and outlet, and the water inlet is connected to the intake tunnel, and described goes out
The mouth of a river is connected to the exhalant canal, it is characterised in that is additionally provided in the shell and the intake tunnel and described
The pressure release back cavity that is respectively communicated with of exhalant canal, be provided with pressure relief opening, the pressure release back cavity on the exhalant canal
It is connected to, is provided in the pressure release back cavity for being opened and closed described let out with the exhalant canal by the pressure relief opening
Press the pressure relief device of mouth.
2. a kind of hand-hold washer water gun nozzle according to claim 1, it is characterised in that the pressure relief device includes
The top end of relief valve and pressure release spring, the relief valve is matched with the pressure relief opening, the relief valve it is another
End is connected with one end of the pressure release spring, the cavity wall of the other end of the pressure release spring and the pressure release back cavity
Abut, when nature described in relief valve top end be embedded under the effect of elasticity described in pressure relief opening, pressure release state when institute
The top end for the relief valve stated is detached from the pressure relief opening.
3. a kind of hand-hold washer water gun nozzle according to claim 2, it is characterised in that in the exhalant canal
When hydraulic pressure is more than the setting maximum pressure value of the pressure release spring, the top end of the relief valve is detached from the pressure release
Mouthful.
4. a kind of hand-hold washer water gun nozzle according to claim 3, it is characterised in that further include the first connecting tube and
The lower part of second connecting tube, the top of first connecting tube and second connecting tube is rabbeted, first connection
The inner cavity of pipe, the inner cavity of second connecting tube and the pressure release back cavity are sequentially communicated along water (flow) direction, and described lets out
The bottom end of pressing spring is abutted with the top of second connecting tube.
5. a kind of hand-hold washer water gun nozzle according to claim 4, it is characterised in that first connecting tube
The accommodating cavity of connection is provided in second connection tube cavity of over top, the internal diameter of the accommodating cavity is greater than the water inlet
The internal diameter in channel is provided in the accommodating cavity and only closes the intake tunnel in an inactive state and prevent liquid or sky
The antipriming of gas countercurrent.
6. a kind of hand-hold washer water gun nozzle according to claim 1-5, it is characterised in that the pump housing
It is connect by main shaft with external power supply, driving is rotated by the external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820767510.5U CN208466240U (en) | 2018-05-22 | 2018-05-22 | A kind of hand-hold washer water gun nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820767510.5U CN208466240U (en) | 2018-05-22 | 2018-05-22 | A kind of hand-hold washer water gun nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN208466240U true CN208466240U (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820767510.5U Active CN208466240U (en) | 2018-05-22 | 2018-05-22 | A kind of hand-hold washer water gun nozzle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110226491A (en) * | 2019-07-23 | 2019-09-13 | 王芳林 | A kind of sprinkler |
| CN110395223A (en) * | 2019-08-20 | 2019-11-01 | 黄双华 | Hand-hold washer |
-
2018
- 2018-05-22 CN CN201820767510.5U patent/CN208466240U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110226491A (en) * | 2019-07-23 | 2019-09-13 | 王芳林 | A kind of sprinkler |
| CN110395223A (en) * | 2019-08-20 | 2019-11-01 | 黄双华 | Hand-hold washer |
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