CN109632195A - A kind of washing pump air-leakage test head - Google Patents
A kind of washing pump air-leakage test head Download PDFInfo
- Publication number
- CN109632195A CN109632195A CN201811462160.2A CN201811462160A CN109632195A CN 109632195 A CN109632195 A CN 109632195A CN 201811462160 A CN201811462160 A CN 201811462160A CN 109632195 A CN109632195 A CN 109632195A
- Authority
- CN
- China
- Prior art keywords
- washing pump
- sealing device
- sealing ring
- sealing
- holding tube
- 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.)
- Withdrawn
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
Abstract
A kind of washing pump air-leakage test head of disclosure of the invention, sealing device including one with water inlet head or the Water outlet cooperation of washing pump, the sealing device include for be inserted into water inlet head or Water outlet intubation portion and be arranged in intubation portion for will intake head or Water outlet outer tube wall holding holding tube sealing ring, one is provided in the sealing device with airflow channel actuator, one end of the actuator is withstood on holding tube sealing ring, the other end stretches out sealing device and is provided with gas-tpe fitting, and the driving structure that can be driven actuator press holding tube sealing ring and the internal diameter diminution of holding tube sealing ring is held tightly intake head or Water outlet is provided between actuator and sealing device, the water inlet head of washing pump simply can be sealed holding by sealing device, it is easy to operate.
Description
Technical field
The present invention relates to automobile pipeline fields, more particularly to a kind of washing pump air-leakage test head.
Background technique
Front truck windshield is driving that dust can be stained with after a period of time, influences sight, is usually needed at this time to keeping out the wind
Glass water spray and wiper are hung therewith to be moved, and achievees the effect that windshield scraping wash clean.Cleaning solution therein is stored in washing
In tank, the cleaning agent in washing tank is sprayed on windshield by spray head by washing pump.
Wherein the air-tightness of washing pump is particularly important, during producing washing pump, will first be packed into two half shells
Corresponding component, such as motor, two half shells for being then loaded into motor carry out ultrasonic bonding, realize the assembling of washing pump,
Washing pump after being completed needs to carry out air-leakage test, and washing pump includes being separately connected with water inlet head and Water outlet
The working cavity of inside two of washing pump needs to meet air-tightness requirement between the two cavitys, not so will affect washing pump
It works normally.
Since the water inlet head of washing pump and the caliber of Water outlet are smaller, when carrying out air-leakage test to it, generally use
Tracheae is patched into water head or Water outlet, is ventilated later, then into the water by washing pump, has seen whether that bubble is emerged.However
Compared with the water inlet head and Water outlet of small diameter tube, when carrying out the connection with tracheae, very different meaning is fixed, usually will appear tracheae with
Leakage between water inlet head causes test difficult.
Summary of the invention
The object of the present invention is to provide the air-leakage test heads that one kind can seal up washing pump water inlet head easily.
To achieve the goals above, the present invention provides a kind of washing pump air-leakage test heads, including one and washing pump
Intake the sealing device of head or Water outlet cooperation, the sealing device include for be inserted into the intubation portion of intake head or Water outlet with
And the holding tube sealing ring held tightly in intubation portion for will intake head or Water outlet outer tube wall is set, setting in the sealing device
Have one with airflow channel actuator, one end of the actuator is withstood on holding tube sealing ring, the other end stretch out sealing device and
Be provided with gas-tpe fitting, and be provided between actuator and sealing device can drive actuator press holding tube sealing ring and make embrace
The internal diameter of seal of tube circle reduces the driving structure for holding intake head or Water outlet tightly.
It advanced optimizes as the driving structure includes setting gradually from gas-tpe fitting to the one end for withstanding on holding tube sealing ring
Sealing axis, step ring and the piston for thering is diameter successively to become larger；It is provided in the sealing device and piston seal sliding connection
Plunger shaft and the bottom cover for covering plunger shaft are sealed between the bottom cover and sealing axis and are slid；Piston separates plunger shaft
At the driving chamber close to step ring and away from the reply chamber of step ring, it is provided with a driving air flue on sealing device, drives
The surface other end that one end of air flue is set to sealing device is connected to driving chamber.
It advanced optimizes to be provided with a driving step ring between the bottom of chamber and piston for replying chamber and sticking on bottom cover
Reset spring, when the step ring of actuator impersonates on bottom cover, the holding tube sealing ring is in the original state that is not squeezed.
It advanced optimizes to be provided with the first sealing ring between the piston and the cavity wall of plunger shaft.
It advanced optimizes as the contact surface of the bottom cover and sealing axis is provided with closure gasket groove, sets in the closure gasket groove
It is equipped with the second sealing ring.
It advanced optimizes as the side of the bottom cover towards sealing device is provided with the threaded connection block of an evagination, described
The tip inside face of plunger shaft towards bottom cover is provided with the internal screw thread with threaded connection block cooperation, and is cased in threaded connection block
Third sealing ring.
Compared with prior art, the present invention after the water inlet of washing pump is inserted into intubation portion, by driving air flue to make
Driving chamber generates pushed at high pressure piston and moves back toward cavity direction is replied, while the end of actuator squeezes holding tube sealing ring, due to holding tube
The outer ring of sealing ring is limited, therefore will generate the amount deformed to inner ring, this deflection is by the water inlet head of washing pump or goes out
Head is held tightly, forms good sealing, later again by the gas-tpe fitting of actuator, high pressure gas is entered by airflow channel
In washing pump, the air-leakage test to washing pump inner chamber bottom is realized, by the above-mentioned means, the water inlet head of washing pump and sealing dress
It is capable of forming good sealing between setting, improves the accuracy of measurement washing pump leakproofness, and easy to operate.
Detailed description of the invention
Fig. 1 is the cooperation schematic diagram of sealing device and washing pump of the invention；
Fig. 2 is the separated position schematic diagram of sealing device and washing pump of the invention；
Fig. 3 is sealing device half-section diagram of the invention；
Fig. 4 and Fig. 5 is sealing device perspective view of the explosion of the invention.
Wherein: 1, washing pump；11, water inlet head；2, sealing device；21, intubation portion；22, air flue is driven；23, plunger shaft；
231, driving chamber；232, chamber is replied；3, bottom cover；4, holding tube sealing ring；5, actuator；51, airflow channel；52, axis is sealed；53,
Step ring；54, piston；55, gas-tpe fitting；6, the first sealing ring；7, the second sealing ring；8, spring；9, third sealing ring.
Specific embodiment
It is described in further detail with reference to the accompanying drawing and by specific embodiment to invention, following embodiment is descriptive
, it is not restrictive protection scope of the present invention.
A kind of washing pump air-leakage test head, referring to attached drawing 1-5, including sealing device 2 and bottom cover 3, the end of sealing device 2
Portion is provided with the intubation portion 21 of holding tube sealing ring 4 built in one.Holding tube sealing ring 4, holding tube are installed inside intubation portion 21 therein
Sealing ring 4 is central column, and end withstands on the end in intubation portion 21, and water inlet head 11 of the aperture at center for washing pump 1 is inserted into,
The other end of holding tube sealing ring 4 is combined with actuator 5, and the inside break-through of actuator 5 has airflow channel 51, and seals with holding tube
The centre bore connection of circle 4.
Wherein, actuator 5 is provided with diameter to the direction for withstanding on 4 one end of holding tube sealing ring from gas-tpe fitting 55 and successively becomes larger
Sealing axis 52, step ring 53 and piston 54, the plunger shaft 23 with the sliding connection of piston 54, sealing are provided in sealing device 2
Axis 52 seals sliding across bottom cover 3 and its axial plane and bottom cover 3.In order to keep the air-tightness of driving chamber 231, on piston 54
It is provided with the first sealing ring 6, is provided with the second sealing ring 7 between sealing axis 52 and bottom cover 3, in bottom cover 3 and sealing device 2
Third sealing ring 9 is provided at connecting end surface, thus when driving gas to enter driving chamber 231 from driving air flue 22,
Actuator 5 can be push and moved to 232 side of chamber is replied, while actuator 5 being made to press holding tube sealing ring 4.When step ring 53
When being resisted against on bottom cover 3, actuator 5 is in a state of nature namely holding tube sealing ring 4 is in the state not being pressurized.In order to realize
The reset of actuator 5 in piston 54 and is replied provided with reset spring 8 between chamber 232, and reset spring 8 drives the platform of actuator 5
Rank ring 53 sticks on bottom cover 3.The side of bottom cover 3 towards sealing device 2 is provided with the threaded connection block of an evagination, plunger shaft 23
The tip inside face of bottom cover 3 is provided with the internal screw thread with threaded connection block cooperation, and is cased with third in threaded connection block
Sealing ring 9, so that third sealing ring 9 is compacted when bottom cover 3 is packed into sealing device 2, sealing performance is stronger.
At work, the water inlet head 11 of washing pump 1 is inserted into the intubation portion 21 of sealing device 2, while makes head 11 of intaking
Enter the inner ring of holding tube sealing ring 4.Then to being inflated in driving air flue 22, so that actuator 5 heads on the change of holding tube sealing ring 4
Shape, the outer ring due to holding tube sealing ring 4 are limited, therefore will generate the amount deformed to inner ring, this deflection is by washing pump 1
Water inlet head 11 or Water outlet hold tightly, form good sealing.Later, into the water by washing pump 1, high pressure gas passes through air-flow
Channel 51 enters in washing pump 1, has seen whether that bubble is emerged, by observation bubble the case where, realize to washing pump 1
Air-leakage test.After detection finishes, airflow channel 51 and driving air flue 22 lose heart simultaneously, and actuator 5 will be in reset spring 8
Under the action of reset, holding tube sealing ring 4 also simultaneously reset release to washing pump 1 intake head 11 holding, washer can be light
Completion and the separation of the detector, operate very convenient.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, all
According to the technical idea provided by the invention, any changes made on the basis of the technical scheme each falls within the scope of the present invention
Within.The embodiments of the present invention are described in detail above, but present invention is not limited to the embodiments described above, in ability
Domain those of ordinary skill within the scope of knowledge, can also make various changes without departing from the premise of the present invention
Change.
Claims (6)
1. a kind of washing pump air-leakage test head, the sealing device including one with water inlet head or the Water outlet cooperation of washing pump,
It is characterized in that, the sealing device includes that intubation portion for being inserted into water inlet head or Water outlet and being arranged is used in intubation portion
The holding tube sealing ring that intake head or Water outlet outer tube wall are held tightly is provided with one in the sealing device and drives with airflow channel
Part, one end of the actuator are withstood on holding tube sealing ring, and the other end stretches out sealing device and is provided with gas-tpe fitting, and drives
Actuator press holding tube sealing ring can be driven and make the internal diameter diminution of holding tube sealing ring will by being provided between part and sealing device
The driving structure for head or the Water outlet holding of intaking.
2. a kind of washing pump air-leakage test head according to claim 1, which is characterized in that the driving structure include from
Gas-tpe fitting is disposed with sealing axis, step ring and the piston that diameter successively becomes larger to the one end for withstanding on holding tube sealing ring；Institute
It states and is provided in sealing device and the plunger shaft of piston seal sliding connection and the bottom cover for covering plunger shaft, the bottom cover
It seals and slides between sealing axis；Plunger shaft is separated into close to the driving chamber of step ring and away from the reply of step ring by piston
Chamber is provided with a driving air flue on sealing device, and one end of air flue is driven to be set to the surface other end of sealing device and drive
Dynamic chamber connection.
3. a kind of washing pump air-leakage test head according to claim 2, which is characterized in that in bottom of chamber and the work for replying chamber
The reset spring that a driving step ring sticks on bottom cover is provided between plug, when the step ring of actuator impersonates on bottom cover
When, the holding tube sealing ring is in the original state that is not squeezed.
4. a kind of washing pump air-leakage test head according to claim 2, which is characterized in that the piston and plunger shaft
The first sealing ring is provided between cavity wall.
5. a kind of washing pump air-leakage test head according to claim 2, which is characterized in that the bottom cover and sealing axis
Contact surface is provided with closure gasket groove, and the second sealing ring is provided in the closure gasket groove.
6. a kind of washing pump air-leakage test head according to claim 2, which is characterized in that the bottom cover is filled towards sealing
The side set is provided with the threaded connection block of an evagination, and the tip inside face of the plunger shaft towards bottom cover is provided with to be connected with screw thread
The internal screw thread of block cooperation is connect, and is cased with third sealing ring in threaded connection block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811462160.2A CN109632195A (en) | 2018-11-30 | 2018-11-30 | A kind of washing pump air-leakage test head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811462160.2A CN109632195A (en) | 2018-11-30 | 2018-11-30 | A kind of washing pump air-leakage test head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109632195A true CN109632195A (en) | 2019-04-16 |
Family
ID=66070714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811462160.2A Withdrawn CN109632195A (en) | 2018-11-30 | 2018-11-30 | A kind of washing pump air-leakage test head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109632195A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964434A (en) * | 2021-02-22 | 2021-06-15 | 苏州托克斯冲压设备有限公司 | Engine oil seal tightness detection device |
| CN113639833A (en) * | 2021-08-13 | 2021-11-12 | 麦克传感器股份有限公司 | Liquid level transmitter testing device and method based on pneumatic control |
-
2018
- 2018-11-30 CN CN201811462160.2A patent/CN109632195A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964434A (en) * | 2021-02-22 | 2021-06-15 | 苏州托克斯冲压设备有限公司 | Engine oil seal tightness detection device |
| CN112964434B (en) * | 2021-02-22 | 2023-09-29 | 苏州托克斯冲压设备有限公司 | Engine oil seal tightness detection device |
| CN113639833A (en) * | 2021-08-13 | 2021-11-12 | 麦克传感器股份有限公司 | Liquid level transmitter testing device and method based on pneumatic control |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190416 |