CN207232090U - Test device - Google Patents
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- CN207232090U CN207232090U CN201721311678.7U CN201721311678U CN207232090U CN 207232090 U CN207232090 U CN 207232090U CN 201721311678 U CN201721311678 U CN 201721311678U CN 207232090 U CN207232090 U CN 207232090U
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- installing plate
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Abstract
The utility model provides a kind of test device, the vibration isolating effect vibrated for testing isolation mounting to water pump.The test device includes the first installing plate, and the first installing plate, which is equipped with, is used for the first mounting portion for installing isolation mounting and the second mounting portion for installing sensor.Test device provided by the utility model, it can carry out the fine or not degree of the vibration isolating effect of proving and comparisom isolation mounting instead of water purifier, on the one hand, due to not being related to water circuit system, eliminate influence of the water circuit system vibration isolation to test result, on the other hand it can also be tested without household electrical appliance, eliminate the trouble that household electrical appliance are conveyed in sections.
Description
Technical field
A kind of test device is the utility model is related to, more specifically, is related to a kind of test isolation mounting and water pump is vibrated
Vibration isolating effect test device.
Background technology
For household electrical appliance, such as water purifier, its water pump can give the water inlet of water purifier and water outlet to provide power, for big logical
The water purifier of amount, the power of water pump is larger, therefore when water purifier works, the vibration of water pump is very big, its vibration can pass through water pump
The other positions transmission to water purifier of isolation mounting and water route, seriously affect user experience, and the vibration can also be produced and made an uproar
Sound, influences work and the quality of the life of user.
Therefore need the vibration to water pump to carry out vibration isolation, be a kind of current common vibration isolating method using isolation mounting, but
Be different isolation mountings vibration isolating effect it is widely different, it is therefore desirable to the vibration isolating effect of isolation mounting is tested to find out
Optimal isolation scheme.
The vibration isolating effect of isolation mounting is tested directly on water purifier at present, it has a disadvantage that：
1st, water purifier convey in sections it is all cumbersome；
2nd, can also be by water circuit system to water purification since water pump can both have been vibrated by isolation mounting to water purifier transmission
Device transmission is vibrated, therefore directly on water purifier test and the vibration isolating effect of isolation mounting can not be illustrated.
Utility model content
The utility model is intended at least solve one of technical problem existing in the prior art.
For this reason, the purpose of this utility model is to provide a kind of test device.
To achieve the above object, the embodiment of the utility model provides a kind of test device, for testing isolation mounting
To the vibration isolating effect of water pump vibration, including：First installing plate, equipped with the first mounting portion and use for installing the isolation mounting
In the second mounting portion of installation sensor.
The test device that the utility model above-described embodiment provides, isolation mounting are connected to the first peace by the first mounting portion
In loading board, sensor is connected on the first installing plate by the second mounting portion, and isolation mounting is used to carry out vibration isolation, i.e. water to water pump
Pump is installed in test device by isolation mounting.So as to by installing isolation mounting and sensor, test in test device
Vibration isolating effect of the isolation mounting to water pump, you can with by water pump, isolation mounting be placed in test device, outside household electrical appliance to every
The vibration isolating effect of vibrating device is tested, it is not necessary to is tested on household electrical appliance, on the one hand, due to not being related to water route system
System, eliminates influence of the water circuit system to test result, on the other hand eliminates the trouble that household electrical appliance are conveyed in sections.
In addition, the test device that the utility model above-described embodiment provides also has following additional technical feature：
In above-mentioned technical proposal, it is preferable that the test device further includes：Second installing plate, with first installing plate
It is connected, is used to support first installing plate.
In above-mentioned technical proposal, it is preferable that first installing plate is vertically arranged, second installing plate and described first
The lower end of installing plate is connected；And/or second installing plate is horizontally disposed with.
Certainly, the first installing plate can also be obliquely installed, and the second installing plate can also be obliquely installed.
In above-mentioned technical proposal, it is preferable that the isolation mounting is connected with the water pump, first installing plate and institute
Projection of the barycenter of water pump on second installing plate is stated to overlap with the barycenter of second installing plate.
Isolation mounting is connected on the first installing plate, and water pump is connected on isolation mounting, and water pump is located at the second installing plate
Top, the second installing plate are used to support the first installing plate, isolation mounting and water pump.In order to enable the second installing plate can be to first
Installing plate and water pump carry out good support, the barycenter of the first installing plate and water pump (the first installing plate, water pump gross mass in
The heart) with the barycenter (center of the second installing plate quality) of the second installing plate on same vertical curve.
It is of course also possible to it is barycenter the projecting and the second installing plate on the second installing plate of the first installing plate and water pump
Barycenter substantially overlaps.
In view of the quality of isolation mounting, can be the first installing plate, water pump, isolation mounting barycenter (the first installing plate,
The center of the gross mass of water pump and isolation mounting) projection on the second installing plate overlaps or substantially with the barycenter of the second installing plate
Overlap.
In above-mentioned technical proposal, it is preferable that first mounting portion supplies fastener for what is set on first installing plate
The connecting hole passed through, the isolation mounting are connected by the fastener with first installing plate；Alternatively, first peace
Dress portion is the buckle or card slot set on first installing plate, and the isolation mounting is mutually clamped with first installing plate；
Alternatively, first mounting portion is the nut or screw thread that are set on first installing plate, the isolation mounting and described first
Installing plate is threadedly coupled.
In above-mentioned technical proposal, it is preferable that the isolation mounting includes sheet metal and multiple glue feet, first installing plate
Be equipped with one-to-one multiple first mounting portions of multiple glue feet so that multiple glue feet and the described first peace
Loading board is connected.
In above-mentioned technical proposal, it is preferable that second mounting portion is at least part outer surface of first installing plate,
At least part outer surface is in planar structure, and the sensor includes sensor main body and the interface with the sensor main body
The sensor connecting line being connected, close to the interface positioned at described on the sensor main body, the sensor connecting line
In planar structure；Alternatively, second mounting portion is the peace for accommodating the sensor set on first installing plate
Hole is filled, the mounting hole is adapted with the sensor.
Directly when being tested on household electrical appliance the vibration isolating effect of isolation mounting, install and pass in the bottom of isolation mounting
During sensor, since surrounding is raised component, sensor is not often easy to install, while sensor also holds in test process
It is easy to fall off.
To avoid coming off for sensor, the second mounting portion is set on the first installing plate, the second mounting portion can be first
The outer surface of installing plate, i.e. sensor are installed on the outer surface of the first installing plate, and install the first installing plate at sensor
Outer surface be plane, in this way, the junction of sensor main body and sensor connecting line is all located in the plane so that sensor
It can be firmly installed on the first installing plate.Preferably, can will be as much as possible close to interface on sensor connecting line
Part is in the plane.
It is of course also possible to mounting hole being set on the first installing plate, it is preferable that mounting hole is adapted with sensor main body,
Sensor main body is located in the mounting hole.
In above-mentioned technical proposal, it is preferable that be supported by stent between first installing plate and second installing plate；
And/or first installing plate is welded on second installing plate, alternatively, first installing plate and second installation
Plate is connected by fastener, alternatively, first installing plate is connected through a screw thread with second installing plate, alternatively, described
First installing plate is mutually clamped with second installing plate.
In above-mentioned technical proposal, it is preferable that second installing plate is metallic plate；And/or set on second installing plate
There is grip part.
In above-mentioned technical proposal, it is preferable that first installing plate is metallic plate；And/or set on first installing plate
There is handgrip.
The additional aspect and advantage of the utility model will become obvious in following description section, or new by this practicality
The practice of type is recognized.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become obvious and be readily appreciated that, wherein：
Fig. 1 is the structure diagram of the test device described in one embodiment of the utility model；
Fig. 2 is the test device and isolation mounting, the assembling structure one of water pump described in one embodiment of the utility model
The structure diagram at a visual angle；
Fig. 3 is that test device described in one embodiment of the utility model and the decomposition texture of isolation mounting, water pump show
It is intended to；
Fig. 4 is that test device described in one embodiment of the utility model and the assembling structure of isolation mounting, water pump are another
The structure diagram at one visual angle.
Wherein, the correspondence in Fig. 1 to Fig. 4 between reference numeral and component names is：
100 test devices, 1 first installing plate, 11 first mounting portions, 12 second mounting portions, 2 second installing plates, 21 grip
Portion, 3 stents, 4 isolation mountings, 41 glue feet, 42 sheet metals, 5 water pumps, 6,7 bolts, 8,9 sensors.
Embodiment
In order to be more clearly understood that the above-mentioned purpose of the utility model, feature and advantage, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the case where there is no conflict, this Shen
The feature in embodiment and embodiment please can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
It is new to be implemented using other different from mode described here, therefore, the scope of protection of the utility model and from
The limitation of following public specific embodiment.
1 to 4 the test device according to some embodiments of the utility model is described with reference to the accompanying drawings.
As shown in Figure 1, Figure 2 and Figure 4, according to a kind of test device 100 of the utility model some embodiments offer, it is used for
The vibration isolating effect that test isolation mounting 4 vibrates water pump 5, test device include the first installing plate 1, and the first installing plate, which is equipped with, to be used
The first mounting portion 11 in installation isolation mounting 4 and the second mounting portion for installing sensor 8.
The test device 100 that the utility model above-described embodiment provides, isolation mounting 4 are connected to by the first mounting portion 11
On first installing plate 1, sensor 8 is connected on the first installing plate 1 by the second mounting portion, and isolation mounting 4 is used for water pump 5
Vibration carries out vibration isolation, i.e. water pump 5 is installed in test device 100 by isolation mounting 4.So as to by test device 100
Isolation mounting 4 and sensor 8 are installed, to test vibration isolating effect of the isolation mounting 4 to water pump 5, you can water pump 5, vibration isolation to be filled
Put 4 be placed in test device 100, test the vibration isolating effect of isolation mounting 4 outside household electrical appliance, it is not necessary in household electric
Tested on device, on the one hand, due to not being related to the water circuit system of household electrical appliance, eliminate water circuit system vibration isolation to test result
Influence, on the other hand can also be tested without household electrical appliance, eliminate the trouble that household electrical appliance are conveyed in sections.
Preferably, test device 100 further includes：Second installing plate 2, is connected with the first installing plate 1, is used to support first
Installing plate 1.
Preferably, the first installing plate 1 is vertically arranged, and the second installing plate 2 is connected with the lower end of the first installing plate 1, and second
Installing plate 2 is horizontally disposed.
Certainly, the first installing plate 1 can also be obliquely installed, and the second installing plate 2 can also be obliquely installed.
Further, the first installing plate and the second installing plate are in plane.
Preferably, isolation mounting 4 is connected with water pump 5, and the barycenter of the first installing plate 1 and water pump 5 is on the second installing plate 2
Projection overlapped with the barycenter of the second installing plate 2.
Isolation mounting 4 is connected on the first installing plate 1, and water pump 5 is connected on isolation mounting 4, isolation mounting and 5, water pump
In the top of the second installing plate 2, the second installing plate 2 is used to support the first installing plate 1, isolation mounting 4 and water pump 5.In order to enable
Second installing plate 2 can carry out the first installing plate 1 and water pump 5 barycenter (of good support, the first installing plate 1 and water pump 5
One installing plate 1, water pump 5 gross mass center) with the barycenter (center of 2 mass of the second installing plate) of the second installing plate 2 same
On one vertical curve.
It is of course also possible to it is projection of the barycenter of the first installing plate 1 and water pump 5 on the second installing plate 2 and the second installation
The barycenter of plate 2 substantially overlaps.
Can be the first installing plate 1, water pump 5, (first pacifies the barycenter of isolation mounting 4 in view of the quality of isolation mounting 4
The center of the gross mass of loading board 1, water pump 5 and isolation mounting 4) projection on the second installing plate 2 and the barycenter of the second installing plate 2
Overlap or substantially overlap.
Preferably, as shown in figure 3, isolation mounting 4 includes sheet metal 42 (can be but be not limited to iron plate) and is connected to gold
Belong to the glue foot 41 on piece 42.Sheet metal 42 is connected with water pump 5, and specific connection mode can be that both are tight by the grade of bolt 7
Firmware is connected, or clamping or threaded connection.Glue foot 41 is engaged with the first mounting portion 11 on the first installing plate 1 so that every
Vibrating device 4 is connected on the first installing plate 1.
In first specific embodiment, the first mounting portion 11 supplies screw or bolt 6 for what is set on the first installing plate 1
The connecting hole passed through Deng fastener, isolation mounting 4 are connected by fastener with the first installing plate 1.Specifically, set on glue foot 41
There is the pilot hole being adapted with connecting hole, fastener realizes the company of 41 and first installing plate 1 of glue foot through connecting hole and pilot hole
Connect.
In second specific embodiment, the first mounting portion 11 is the buckle or card slot set on the first installing plate 1,
Isolation mounting 4 is clamped with 1 phase of the first installing plate.Specifically, if isolation mounting 4 is equipped with buckle, the first mounting portion 11 is and card
The card slot being adapted is detained, if isolation mounting 4 is equipped with card slot, the first mounting portion 11 is the buckle being adapted with card slot.Preferably,
Glue foot is connected with the first mounting portion, if glue foot 41 is equipped with buckle, the first mounting portion 11 is the card slot being adapted with buckle, if
Glue foot 41 is equipped with card slot, and the first mounting portion 11 is the buckle being adapted with card slot.
In the 3rd specific embodiment, the first mounting portion 11 is the nut or screw thread set on the first installing plate 1, every
Vibrating device 4 is threadedly coupled with the first installing plate 1.Specifically, if isolation mounting 4 is equipped with nut, the first mounting portion 11 is and spiral shell
The screw thread of parent phase adaptation, if isolation mounting 4 is equipped with screw thread, the first mounting portion 11 is the nut being adapted with screw thread.Preferably,
Glue foot is connected with the first mounting portion, if glue foot 41 is equipped with nut, the first mounting portion 11 is the screw thread being adapted with nut, if
Glue foot 41 is equipped with screw thread, and the first mounting portion 11 is the nut being adapted with screw thread.
Preferably, isolation mounting 4 includes multiple glue feet 41, and the first installing plate 1 is equipped with and is corresponded with multiple glue feet 41
Multiple first mounting portions 11 so that multiple glue feet 41 are connected with the first installing plate 1.
Multiple glue feet 41 are connected to the periphery of sheet metal 42, as shown in figure 3, isolation mounting 4 includes four glue feet 41, first
Installing plate 1 is equipped with four the first mounting portions 11.
Directly when being tested on household electrical appliance the vibration isolating effect of isolation mounting 4, installed in the bottom of isolation mounting 4
During sensor 8, since surrounding is raised component, sensor 8 is not often easy to install, while sensor in test process
8 also easily come off.
Therefore, in a specific embodiment, the second mounting portion is at least part outer surface of the first installing plate 1, extremely
Small part outer surface is in planar structure, and sensor 8 includes sensor main body and the sensing being connected with the interface of sensor main body
Device connecting line, is located in planar structure close to interface on sensor main body, sensor connecting line.
For avoid sensor 8 come off and cause sensor 8 it is easy for installation, on the first installing plate 1 set second installation
Portion, the second mounting portion can be the outer surfaces of the first installing plate 1, i.e., sensor 8 is installed on the outer surface of the first installing plate 1,
And the outer surface of the first installing plate 1 at installation sensor 8 is plane, in this way, sensor main body is located in the plane, sensor
It also is located on connecting line with the junction of interface in the plane so that sensor 8 can be firmly installed in the first installing plate 1
On.Preferably, the part as much as possible on sensor connecting line close to interface can be made to be located in the plane.
Preferably, the second mounting portion is disposed opposite to each other with isolation mounting 4, i.e. the second mounting portion is located at respectively with isolation mounting 4
The opposite both sides of first installing plate 1.
In another specific embodiment, the second mounting portion is to be set on the first installing plate 1 for accommodating sensor 8
Mounting hole, mounting hole is adapted with sensor 8.
It is of course also possible to mounting hole being set on the first installing plate 1, it is preferable that mounting hole is adapted with sensor main body,
Sensor main body is located in the mounting hole.
Preferably, sensor 8 is acceleration transducer 8 or vibrating sensor 8.
Preferably, stent 3 is supported by between the first installing plate 1 and the second installing plate 2, realizes the first installing plate 1 and second
The connection of installing plate 2, further improves the support effect to water pump 5 of the first installing plate 1.One end of stent 3 and the first installation
Plate 1 is connected, and the other end of stent 3 is connected with the second installing plate 2, and stent 3 can be located at the first installing plate 1 with water pump 5
The same side, can also be with water pump 5 respectively positioned at the opposite both sides of the first installing plate 1.First installing plate can be realized by stent 3
1 and second installing plate 2 connection, and not against other connection structures.
Preferably, the first installing plate 1 is welded on the second installing plate 2, alternatively, the first installing plate 1 and the second installing plate 2 are logical
Cross fastener to be connected, alternatively, the first installing plate 1 is connected through a screw thread with the second installing plate 2, alternatively, the first installing plate 1 and
Two installing plates, 2 phase is clamped.
Preferably, the second installing plate 2 is metallic plate, can strengthen the intensity of the second installing plate 2.
Second installing plate 2 is equipped with grip part 21, it is preferable that grip part 21 is the gripping hole set on the second installing plate 2
(as shown in Figure 1), or grip part 21 are the gripping handle that the second installing plate 2 convexes to form, convenient that test device 100 is removed
Fortune.
Preferably, the first installing plate 1 is metallic plate, can strengthen the intensity of the first installing plate 1.
First installing plate 1 is equipped with handgrip, and grip part 21 is the cavernous structure set on the first installing plate 1 or the second peace
The gripping that loading board 2 convexes to form is raised, convenient that test device 100 is carried.
When being tested, a sensor 9 is installed on water pump 5, a sensor 8 is installed on the first installing plate 1, preferably
Ground, the side opposite with water pump 5 installation sensor 8, passes through the contrast of two 8 test results of sensor on the first installing plate 1
Know the vibration isolating effect that the isolation mounting 4 vibrates water pump 5.For different isolation mounting 4 (the species change of isolation mounting 4,
Installation site change on water pump 5, alternatively, situations such as the change in size of isolation mounting 4), different situations lower sensor is surveyed
The result of examination is contrasted, and knows the vibration isolating effect that isolation mounting 4 vibrates water pump 5, thus easily to isolation mounting 4 every
Effect of shaking carries out contrast experiment, finds out optimal isolation scheme, while can exclude the influence that vibration is transmitted in water route.
Preferably, household electrical appliance are water purifier.
In conclusion the utility model embodiment provide test device 100, can come instead of water purifier proving and comparisom every
The fine or not degree of the vibration isolating effect of vibrating device 4, on the one hand, due to not being related to water circuit system, eliminate water circuit system vibration isolation to surveying
The influence of test result, on the other hand can also be tested without household electrical appliance, eliminate the trouble that household electrical appliance are conveyed in sections.
In the description of the utility model, unless otherwise clearly defined and limited, term " multiple " refers to two or two
More than a；Unless otherwise prescribed or illustrate, term " connection ", " fixation " etc. should all be interpreted broadly, for example, " connection " can be
It is fixedly connected or is detachably connected, or be integrally connected, or is electrically connected；It can be directly connected, can also be in
Between medium be indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in utility model.
In the description of this specification, it is to be understood that the instruction such as term " on ", " under ", "front", "rear", "left", "right"
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the utility model and letter
Change description, rather than instruction or imply signified device or unit must have specific direction, with specific azimuth configuration and
Operation, it is thus impossible to be interpreted as the limitation to the utility model.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that combining the particular features, structures, materials, or characteristics that the embodiment or example describe is contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiments or example
In combine in an appropriate manner.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of test device, the vibration isolating effect vibrated for testing isolation mounting to water pump, it is characterised in that including：
First installing plate, is installed equipped with the first mounting portion and second for installing sensor for installing the isolation mounting
Portion.
2. test device according to claim 1, it is characterised in that further include：
Second installing plate, is connected with first installing plate, is used to support first installing plate.
3. test device according to claim 2, it is characterised in that
First installing plate is vertically arranged, and second installing plate is connected with the lower end of first installing plate；And/or
Second installing plate is horizontally disposed with.
4. test device according to claim 2, it is characterised in that
The isolation mounting is connected with the water pump, and the barycenter of first installing plate and the water pump is in the described second installation
Projection on plate is overlapped with the barycenter of second installing plate.
5. test device according to any one of claim 1 to 4, it is characterised in that
First mounting portion is the connecting hole passed through for fastener set on first installing plate, and the isolation mounting leads to
The fastener is crossed with first installing plate to be connected；Alternatively, first mounting portion is to be set on first installing plate
Buckle or card slot, the isolation mounting is mutually clamped with first installing plate；Alternatively, first mounting portion is described the
The nut or screw thread set on one installing plate, the isolation mounting are threadedly coupled with first installing plate.
6. test device according to any one of claim 1 to 4, it is characterised in that
The isolation mounting includes sheet metal and multiple glue feet, and first installing plate is equipped with a pair of with multiple glue feet one
Multiple first mounting portions answered, so that multiple glue feet are connected with first installing plate.
7. test device according to any one of claim 1 to 4, it is characterised in that
Second mounting portion is at least part outer surface of first installing plate, and at least part outer surface is in planar junction
Structure, the sensor includes sensor main body and the sensor connecting line being connected with the interface of the sensor main body, described
It is located on sensor main body, the sensor connecting line close to the interface in the planar structure；Alternatively,
Second mounting portion is the mounting hole for being used to accommodate the sensor set on first installing plate, the installation
Hole is adapted with the sensor.
8. test device according to any one of claim 2 to 4, it is characterised in that
Stent is supported by between first installing plate and second installing plate；And/or
First installing plate is welded on second installing plate, alternatively, first installing plate and second installing plate
It is connected by fastener, alternatively, first installing plate is connected through a screw thread with second installing plate, alternatively, described
One installing plate is mutually clamped with second installing plate.
9. test device according to any one of claim 2 to 4, it is characterised in that
Second installing plate is metallic plate；And/or
Second installing plate is equipped with grip part.
10. test device according to any one of claim 1 to 4, it is characterised in that
First installing plate is metallic plate；And/or
First installing plate is equipped with handgrip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721311678.7U CN207232090U (en) | 2017-10-12 | 2017-10-12 | Test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721311678.7U CN207232090U (en) | 2017-10-12 | 2017-10-12 | Test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207232090U true CN207232090U (en) | 2018-04-13 |
Family
ID=61851459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721311678.7U Active CN207232090U (en) | 2017-10-12 | 2017-10-12 | Test device |
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| Country | Link |
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| CN (1) | CN207232090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252261A (en) * | 2021-05-31 | 2021-08-13 | 奇瑞汽车股份有限公司 | Vibration isolation testing method for rubber bushing of automobile electronic water pump |
-
2017
- 2017-10-12 CN CN201721311678.7U patent/CN207232090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252261A (en) * | 2021-05-31 | 2021-08-13 | 奇瑞汽车股份有限公司 | Vibration isolation testing method for rubber bushing of automobile electronic water pump |
| CN113252261B (en) * | 2021-05-31 | 2022-06-10 | 奇瑞汽车股份有限公司 | Vibration isolation testing method for rubber bushing of automobile electronic water pump |
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