CN219831001U - High-precision oxygen sensor testing device for automobile - Google Patents
High-precision oxygen sensor testing device for automobile Download PDFInfo
- Publication number
- CN219831001U CN219831001U CN202320649903.7U CN202320649903U CN219831001U CN 219831001 U CN219831001 U CN 219831001U CN 202320649903 U CN202320649903 U CN 202320649903U CN 219831001 U CN219831001 U CN 219831001U
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- Prior art keywords
- main body
- limiting
- tester main
- sealing
- cavity
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 52
- 239000001301 oxygen Substances 0.000 title claims abstract description 52
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model is applicable to the technical field of oxygen sensor testing, and provides a high-precision oxygen sensor testing device for an automobile, which comprises: the tester body is provided with a testing cavity and a mounting cavity; the socket is arranged in the mounting cavity; the mounting seat is rotatably arranged between the test cavity and the mounting cavity; the oxygen sensor is provided with a mounting head, a detection head and a plug, the mounting head is connected with the mounting seat, the detection head is positioned in the test cavity, and the plug is electrically connected with the socket; the through groove is used for conducting the test cavity and the outside of the tester main body; one end of the sealing door is hinged with the outer wall of the tester main body, and the other end of the sealing door is fixed with the tester main body through a fixing mechanism; a sealing mechanism for sealing the outer wall and the sealing door of the tester main body is arranged in the tester main body; the utility model has good test effect and sealing effect.
Description
Technical Field
The utility model belongs to the technical field of oxygen sensor testing, and particularly relates to a high-precision oxygen sensor testing device for an automobile.
Background
The oxygen sensor is a key sensing component in a control system of an electronic fuel injection engine (refer to an engine provided with an electronic control fuel injection system), is a key part for controlling the exhaust emission of an automobile, reducing the environmental pollution of the automobile and improving the fuel combustion quality of the automobile engine, is standard configuration on the automobile, and is all installed on an engine exhaust pipe.
The utility model discloses an oxygen sensor tightness testing arrangement for car, including annular valve, container case and oxygen sensor, the left and right sides of annular valve all is connected with first intake pipe, and the right side the standing groove has been seted up to the body top of first intake pipe, the standing groove of first intake pipe is installed to the lower extreme of container case, the body outside of oxygen sensor is provided with the screw thread, the screw hole has been seted up to the body downside of container case, the lower extreme of oxygen sensor runs through the screw hole of container case and stretches into in the inner chamber of first intake pipe, the detection liquid has been filled in the inner chamber of container case, has filled the blank that detects the product tightness now, and the oxygen sensor through detecting can work under high temperature environment and guarantee good leakproofness to the whole quality of improvement product by a wide margin, and then improved oxygen sensor life-span.
The prior art has the defect that the testing operation is too complex, and the device is inconvenient to carry.
Disclosure of Invention
The embodiment of the utility model aims to provide a high-precision oxygen sensor testing device for an automobile, which aims to solve the problems in the background technology.
The embodiment of the utility model is realized in such a way that a high-precision oxygen sensor testing device for an automobile comprises:
the tester body is provided with a testing cavity and a mounting cavity;
the socket is arranged in the mounting cavity;
the mounting seat is rotatably arranged between the test cavity and the mounting cavity;
the oxygen sensor is provided with a mounting head, a detection head and a plug, the mounting head is connected with the mounting seat, the detection head is positioned in the test cavity, and the plug is electrically connected with the socket;
the through groove is used for conducting the test cavity and the outside of the tester main body; and
one end of the sealing door is hinged with the outer wall of the tester main body, and the other end of the sealing door is fixed with the tester main body through a fixing mechanism;
and a sealing mechanism for sealing the outer wall and the sealing door of the tester main body is arranged in the tester main body.
Preferably, the fixing mechanism includes:
one end of the L-shaped limiting plate is abutted against one side, far away from the tester main body, of the sealing door, and the other end of the L-shaped limiting plate is positioned on the side surface of the tester main body and is provided with a groove;
the connecting sliding block is fixedly connected with the L-shaped limiting plate and is in sliding connection with the tester main body through the trapezoidal sliding block;
the limiting sleeve is rotationally connected with the tester main body; and
one end of the driving rod is nested in the limiting sleeve, an eccentric wheel is arranged at the position in the groove, and the eccentric wheel is abutted against the inner wall of the groove;
the driving rod is fixed on the tester main body and the limiting sleeve through the clamping assembly.
Preferably, the clamping assembly comprises:
the clamping block is arranged in the driving rod in a sliding way, one end of the clamping block is arc-shaped, and part of the clamping block penetrates through the limiting sleeve and is nested in the tester main body; and
the third elastic piece is arranged in the driving rod, and two ends of the third elastic piece are fixedly connected with the bottom wall of the clamping block and the inner wall of the driving rod respectively.
Preferably, the tester body is provided with a sealing cavity, and the sealing mechanism comprises:
the arc-shaped mounting ring is arranged in the sealing cavity;
the sealing ring is arranged on the arc-shaped mounting ring;
the elastic supporting component is used for supporting the arc-shaped mounting ring;
the elastic limiting assembly is provided with a plurality of groups and is used for limiting the sealing ring; and
the elastic support component is connected with a driving component for adjusting the position of the elastic support component.
Preferably, the elastic limiting assembly comprises:
the limiting baffles are provided with two limiting baffles which are respectively positioned at two sides of the sealing ring, one end of each limiting baffle is hinged with the inner wall of the sealing cavity, and the other end of each limiting baffle limits the sealing ring; and
and the torsion spring is fixedly connected with the limit baffle and the inner wall of the sealing cavity respectively.
Preferably, the elastic support assembly includes:
one end of the first connecting rod is fixedly connected with the arc-shaped mounting ring;
the first limit sliding block is fixedly connected with the first connecting rod;
the piston sleeve is arranged in the sealing cavity and is in sliding connection with the first connecting rod and the first limiting slide block; and
the first elastic piece is arranged in the piston sleeve, and two ends of the first elastic piece are fixedly connected with the inner wall of the piston sleeve and the bottom wall of the first limit sliding block respectively.
Preferably, the driving assembly includes:
the second limit sliding block is arranged in the tester main body in a sliding way, and the tester main body is provided with a sliding groove matched with the second limit sliding block;
one end of the limiting rod is fixed on the second limiting slide block, and the other end of the limiting rod extends to the outer side of the tester main body and is abutted against the sealing door;
the second elastic piece is respectively communicated with the sliding groove and the piston sleeve; and
the second elastic piece is arranged in the chute, and two ends of the second elastic piece are fixedly connected with the inner wall of the chute and the second limiting slide block respectively.
Compared with the prior art, the utility model has the beneficial effects that: through setting up tester main part, the test chamber, the installation cavity, the oxygen sensor, the socket, the mount pad, the logical groove, sealing door, fixed establishment and sealing mechanism, when using, through installing the oxygen sensor in the installation cavity, make its detecting head be located the test chamber, on the one hand through letting in oxygen in the test chamber, and build the environment in the blast pipe, thereby can accurate test out the precision of oxygen sensor, moreover can also simulate the installation environment of oxygen sensor in the installation cavity, be convenient for test out the durability of oxygen sensor, in addition, not only be convenient for to oxygen sensor dismouting, whole device also portable, on the other hand, still can seal sealing door through sealing mechanism, it is fixed to sealing door through fixed establishment, the tester main part, be convenient for seal it, build good testing environment.
Drawings
FIG. 1 is a schematic diagram of a high-precision oxygen sensor testing device for an automobile according to an embodiment of the present utility model;
FIG. 2 is a schematic structural diagram of a fixing mechanism and a sealing mechanism in a high-precision oxygen sensor testing device for an automobile according to an embodiment of the present utility model;
fig. 3 is a schematic perspective view of a clamping block in a high-precision oxygen sensor testing device for an automobile according to an embodiment of the utility model.
In the accompanying drawings: 1-a tester body; 2-a test chamber; 3-a mounting cavity; a 4-oxygen sensor; 5-mounting head; 6-detecting head; 7-plug; 8-a socket; 9-mounting seats; 10-through grooves; 11-sealing the door; 12-sealing the cavity; 13-an arc-shaped mounting ring; 14-sealing rings; 15-a first connecting rod; 16-a first limit slide block; 17-a piston sleeve; 18-a first elastic member; 19-a second limit slide block; 20-limiting rods; 21-a second elastic member; 22-connecting pipes; 23-L-shaped limiting plates; 24-connecting a sliding block; 25-driving rod; 26-limiting sleeve; 27-clamping blocks; 28-a third elastic member; 29-limit baffles; 30-torsion springs; 100-a fixing mechanism; 200-a sealing mechanism; 300-drive assembly.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the present utility model, it should be understood that the terms "one end," "another end," "outer," "upper," "inner," "horizontal," "coaxial," "center," "end," "length," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "coupled," "connected," "plugged," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. Specific implementations of the utility model are described in detail below in connection with specific embodiments.
As shown in fig. 1, a schematic structural diagram of a high-precision oxygen sensor testing device for an automobile according to an embodiment of the present utility model includes:
a tester main body 1 provided with a test chamber 2 and a mounting chamber 3;
a socket 8 mounted in the mounting cavity 3;
the mounting seat 9 is rotatably arranged between the test cavity 2 and the mounting cavity 3;
the oxygen sensor 4 is provided with a mounting head 5, a detection head 6 and a plug 7, the mounting head 5 is connected with a mounting seat 9, the detection head 6 is positioned in the test cavity 2, and the plug 7 is electrically connected with a socket 8;
the through groove 10 is used for conducting the test cavity 2 and the outside of the tester main body 1; and
a sealing door 11, one end of which is hinged with the outer wall of the tester main body 1, and the other end of which is fixed with the tester main body 1 through a fixing mechanism 100;
a sealing mechanism 200 for sealing the outer wall of the tester main body 1 and the sealing door 11 is provided in the tester main body 1.
In the embodiment of the utility model, when the oxygen sensor 4 is used, the oxygen sensor 4 is installed in the installation cavity 3, so that the detection head 6 is positioned in the test cavity 2, on one hand, the accuracy of the oxygen sensor 4 can be accurately tested by introducing oxygen into the test cavity 2 and building the environment in the exhaust pipe, and the installation environment of the oxygen sensor 4 can be simulated in the installation cavity 3, so that the durability of the oxygen sensor 4 can be conveniently tested, in addition, the oxygen sensor 4 is conveniently assembled and disassembled, the whole device is also conveniently carried, on the other hand, the sealing door 11 can be conveniently sealed by the sealing mechanism 200, the sealing door 11 and the tester main body 1 can be conveniently fixed by the fixing mechanism 100, and a good test environment is conveniently built.
As shown in fig. 2, as a preferred embodiment of the present utility model, the fixing mechanism 100 includes:
an L-shaped limiting plate 23, one end of which is abutted against one side of the sealing door 11 away from the tester main body 1, and the other end of which is positioned on the side surface of the tester main body 1 and is provided with a groove;
the connecting slide block 24 is fixedly connected with the L-shaped limiting plate 23 and is in sliding connection with the tester main body 1 through the trapezoidal slide block;
a stop collar 26 rotatably connected to the tester main body 1; and
one end of the driving rod 25 is nested in the limiting sleeve 26, an eccentric wheel is arranged at the position in the groove, and the eccentric wheel is abutted against the inner wall of the groove;
the driving rod 25 is fixed on the tester main body 1 and the limit sleeve 26 through the clamping assembly.
In the embodiment of the utility model, the driving rod 25 drives the eccentric wheel to rotate by rotating the driving rod 25, so that the groove can be extruded, the L-shaped limiting plate 23 can be further moved, and the sealing door 11 can be turned over and opened at the moment.
As shown in fig. 2 and 3, as another preferred embodiment of the present utility model, the clamping assembly includes:
the clamping block 27 is arranged in the driving rod 25 in a sliding manner, one end of the clamping block is arc-shaped, and part of the clamping block penetrates through the limiting sleeve 26 and is nested in the tester main body 1; and
the third elastic piece 28 is arranged in the driving rod 25, and two ends of the third elastic piece are fixedly connected with the bottom wall of the clamping block 27 and the inner wall of the driving rod 25 respectively.
In the embodiment of the present utility model, the driving rod 25 is pulled out, the driving rod 25 drives the clamping block 27 to move, and the clamping block 27 is extruded to retract into the driving rod 25, so that the driving rod 25 can be rotated.
As shown in fig. 2, as another preferred embodiment of the present utility model, the tester main body 1 is provided with a seal chamber 12, and the seal mechanism 200 includes:
an arc-shaped mounting ring 13 arranged in the sealing cavity 12;
a seal ring 14 mounted on the arc-shaped mounting ring 13;
an elastic support assembly for supporting the arc-shaped mounting ring 13;
an elastic limiting assembly provided with a plurality of groups for limiting the sealing ring 14; and
the elastic support assembly is connected with a driving assembly 300 for adjusting the position of the elastic support assembly;
the elastic limiting assembly includes:
the limiting baffles 29 are arranged at two sides of the sealing ring 14 respectively, one end of each limiting baffle is hinged with the inner wall of the sealing cavity 12, and the other end of each limiting baffle limits the sealing ring 14; and
the torsion spring 30 is fixedly connected with the limit baffle 29 and the inner wall of the sealing cavity 12 respectively;
the elastic support assembly includes:
one end of the first connecting rod 15 is fixedly connected with the arc-shaped mounting ring 13;
the first limit sliding block 16 is fixedly connected with the first connecting rod 15;
the piston sleeve 17 is arranged in the sealing cavity 12 and is in sliding connection with the first connecting rod 15 and the first limit sliding block 16; and
the first elastic piece 18 is arranged in the piston sleeve 17, and two ends of the first elastic piece are fixedly connected with the inner wall of the piston sleeve 17 and the bottom wall of the first limit sliding block 16 respectively.
In the embodiment of the utility model, when the sealing door 11 is closed, the position of the first limit sliding block 16 is adjusted through the driving assembly 300, so that the first limit sliding block 16 drives the first connecting rod 15 and the arc-shaped mounting ring 13 to move, and the arc-shaped mounting ring 13 drives the sealing ring 14 to move, so that the sealing ring 14 extends out of the sealing cavity 12 to seal the sealing door 11; when sealing door 11 is opened, stop adjusting first spacing slider 16, the elasticity through first elastic component 18 drives first spacing slider 16 to its inside shrink, first spacing slider 16 drives head rod 15, arc collar 13 and removes, and arc collar 13 drives sealing washer 14 and removes to sealed chamber 12, can shelter from sealing washer 14 through limit baffle 29 and protect it, avoid 04 and dust contact.
As shown in fig. 2, as another preferred embodiment of the present utility model, the driving assembly 300 includes:
the second limit sliding block 19 is arranged in the tester main body 1 in a sliding way, and the tester main body 1 is provided with a sliding groove matched with the second limit sliding block;
the limiting rod 20, one end of which is fixed on the second limiting slide block 19, and the other end of which extends to the outer side of the tester main body 1 and is abutted against the sealing door 11;
the second elastic piece 21 is respectively communicated with the sliding groove and the piston sleeve 17; and
the second elastic piece 21 is arranged in the chute, and two ends of the second elastic piece are fixedly connected with the inner wall of the chute and the second limiting slide block 19 respectively.
In the embodiment of the utility model, when the sealing door 11 is closed, the sealing door 11 extrudes the limiting rod 20, the limiting rod 20 drives the second limiting slide block 19 to slide along the sliding groove, the air pressure in the sliding groove rises to enter the piston sleeve 17 through the connecting pipe 22, the first limiting slide block 16 is driven to move through the air pressure, the first limiting slide block 16 drives the first connecting rod 15 and the arc-shaped mounting ring 13 to move, the arc-shaped mounting ring 13 drives the sealing ring 14 to move, and the sealing ring 14 extends out of the sealing cavity 12 to seal the sealing door 11.
In the above embodiment of the utility model, the high-precision oxygen sensor testing device for the automobile is provided, by arranging the tester main body 1, the testing cavity 2, the mounting cavity 3, the oxygen sensor 4, the socket 8, the mounting seat 9, the through groove 10, the sealing door 11, the fixing mechanism 100 and the sealing mechanism 200, when in use, the oxygen sensor 4 is mounted in the mounting cavity 3, the detecting head 6 is positioned in the testing cavity 2, on one hand, oxygen is introduced into the testing cavity 2, and the environment in the exhaust pipe is created, so that the precision of the oxygen sensor 4 can be precisely tested, and the mounting environment of the oxygen sensor 4 can be simulated in the mounting cavity 3, so that the durability of the oxygen sensor 4 can be conveniently tested, in addition, the whole device is convenient to carry, on the other hand, the sealing mechanism 200 can seal the sealing door 11, the tester main body 1 and the sealing door 11, the sealing mechanism 100 is convenient to seal the sealing door, and a good testing environment is created.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. A high-precision oxygen sensor testing device for an automobile, comprising:
the tester body is provided with a testing cavity and a mounting cavity;
the socket is arranged in the mounting cavity;
the mounting seat is rotatably arranged between the test cavity and the mounting cavity;
the oxygen sensor is provided with a mounting head, a detection head and a plug, the mounting head is connected with the mounting seat, the detection head is positioned in the test cavity, and the plug is electrically connected with the socket;
the through groove is used for conducting the test cavity and the outside of the tester main body; and
one end of the sealing door is hinged with the outer wall of the tester main body, and the other end of the sealing door is fixed with the tester main body through a fixing mechanism;
and a sealing mechanism for sealing the outer wall and the sealing door of the tester main body is arranged in the tester main body.
2. The high-precision oxygen sensor testing apparatus for automobiles as defined in claim 1, wherein said fixing means comprises:
one end of the L-shaped limiting plate is abutted against one side, far away from the tester main body, of the sealing door, and the other end of the L-shaped limiting plate is positioned on the side surface of the tester main body and is provided with a groove;
the connecting sliding block is fixedly connected with the L-shaped limiting plate and is in sliding connection with the tester main body through the trapezoidal sliding block;
the limiting sleeve is rotationally connected with the tester main body; and
one end of the driving rod is nested in the limiting sleeve, an eccentric wheel is arranged at the position in the groove, and the eccentric wheel is abutted against the inner wall of the groove;
the driving rod is fixed on the tester main body and the limiting sleeve through the clamping assembly.
3. The high-precision oxygen sensor testing device for automobiles as defined in claim 2, wherein said clamping assembly comprises:
the clamping block is arranged in the driving rod in a sliding way, one end of the clamping block is arc-shaped, and part of the clamping block penetrates through the limiting sleeve and is nested in the tester main body; and
the third elastic piece is arranged in the driving rod, and two ends of the third elastic piece are fixedly connected with the bottom wall of the clamping block and the inner wall of the driving rod respectively.
4. The high-precision oxygen sensor testing apparatus for an automobile according to claim 1, wherein the tester main body is provided with a seal chamber, and the seal mechanism comprises:
the arc-shaped mounting ring is arranged in the sealing cavity;
the sealing ring is arranged on the arc-shaped mounting ring;
the elastic supporting component is used for supporting the arc-shaped mounting ring;
the elastic limiting assembly is provided with a plurality of groups and is used for limiting the sealing ring; and
the elastic support component is connected with a driving component for adjusting the position of the elastic support component.
5. The high-accuracy oxygen sensor testing device for automobiles as claimed in claim 4, wherein said elastic limiting assembly comprises:
the limiting baffles are provided with two limiting baffles which are respectively positioned at two sides of the sealing ring, one end of each limiting baffle is hinged with the inner wall of the sealing cavity, and the other end of each limiting baffle limits the sealing ring; and
and the torsion spring is fixedly connected with the limit baffle and the inner wall of the sealing cavity respectively.
6. The high-accuracy oxygen sensor testing device for automobiles as claimed in claim 4, wherein said elastic supporting member comprises:
one end of the first connecting rod is fixedly connected with the arc-shaped mounting ring;
the first limit sliding block is fixedly connected with the first connecting rod;
the piston sleeve is arranged in the sealing cavity and is in sliding connection with the first connecting rod and the first limiting slide block; and
the first elastic piece is arranged in the piston sleeve, and two ends of the first elastic piece are fixedly connected with the inner wall of the piston sleeve and the bottom wall of the first limit sliding block respectively.
7. The high-accuracy oxygen sensor testing apparatus for automobiles as claimed in claim 6, wherein said driving assembly comprises:
the second limit sliding block is arranged in the tester main body in a sliding way, and the tester main body is provided with a sliding groove matched with the second limit sliding block;
one end of the limiting rod is fixed on the second limiting slide block, and the other end of the limiting rod extends to the outer side of the tester main body and is abutted against the sealing door;
the second elastic piece is respectively communicated with the sliding groove and the piston sleeve; and
the second elastic piece is arranged in the chute, and two ends of the second elastic piece are fixedly connected with the inner wall of the chute and the second limiting slide block respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320649903.7U CN219831001U (en) | 2023-03-29 | 2023-03-29 | High-precision oxygen sensor testing device for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320649903.7U CN219831001U (en) | 2023-03-29 | 2023-03-29 | High-precision oxygen sensor testing device for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219831001U true CN219831001U (en) | 2023-10-13 |
Family
ID=88284631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320649903.7U Active CN219831001U (en) | 2023-03-29 | 2023-03-29 | High-precision oxygen sensor testing device for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219831001U (en) |
-
2023
- 2023-03-29 CN CN202320649903.7U patent/CN219831001U/en active Active
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