CN210760241U - Oil tank anti-theft device - Google Patents
Oil tank anti-theft device Download PDFInfo
- Publication number
- CN210760241U CN210760241U CN201921623354.6U CN201921623354U CN210760241U CN 210760241 U CN210760241 U CN 210760241U CN 201921623354 U CN201921623354 U CN 201921623354U CN 210760241 U CN210760241 U CN 210760241U
- Authority
- CN
- China
- Prior art keywords
- oil tank
- theft
- pressure
- oil
- tank
- 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.)
- Expired - Fee Related
Links
- 239000002828 fuel tank Substances 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 80
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The utility model discloses an oil tank anti-theft device, concretely relates to oil tank theftproof field, including outer container and inner box, the outer container top is equipped with the singlechip, outer container top one side is equipped with the fuel tank cap, the inside pressure release mechanism that is equipped with of fuel tank cap, pressure release mechanism includes pressure release channel, the fuel tank cap outside is equipped with the push rod, push rod one side is equipped with the dog, a pressure sensor of dog bottom fixedly connected with, dog one side fixedly connected with spring, the inside electric putter that is equipped with of spring, be equipped with the AD converter between a pressure sensor and the singlechip, be equipped with the DA converter between electric putter and the singlechip, the inside bottom of pressure release channel is equipped with the check valve. The utility model discloses a push rod is pressed, and the dog changes for pressure release channel's position, balanced oil tank internal pressure, when the vehicle travel in-process produced the negative pressure, the electric putter shrink makes the dog remove, the protection oil tank.
Description
Technical Field
The utility model relates to an oil tank theftproof field, more specifically says, the utility model relates to an oil tank anti-theft device.
Background
Many accessories such as a cooler, a heater, an air filter, a liquid level meter and the like are installed in the anti-theft oil tank, pipelines and parts in the oil tank are more, and the structure is complicated.
When the fuel tank cap is actually used, if an oil pipe is blocked, the fuel tank is easy to break down, and the fuel tank can generate negative pressure, so that the fuel tank cap cannot be opened.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides an oil tank anti-theft device, through pressing the push rod down, the dog changes for pressure release channel's position, it makes inside the outside air pass through pressure release channel entering oil tank to open the check valve, balanced oil tank internal pressure, when the vehicle travel in-process produces the negative pressure, inside and outside pressure difference is experienced to first pressure sensor, give the singlechip pressure signal through the AD converter, the singlechip transmits the instruction for electric putter through the DA converter, electric putter shrink makes the dog remove, the protection oil tank, in order to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the anti-theft oil tank comprises an outer tank and an inner tank, wherein a single chip microcomputer is arranged at the top of the outer tank and fixedly connected with the outer tank, a sealed cavity is formed between the outer tank and the inner tank, an oil tank cover is arranged on one side of the top of the outer tank, an anti-theft net is arranged at the bottom of the oil tank cover, the anti-theft net is in threaded connection with the oil tank cover, a pressure relief mechanism is arranged inside the oil tank cover, and an anti-theft system is arranged on the outer tank;
pressure release mechanism includes the pressure release passageway, the oil tank cap outside is equipped with the push rod, push rod one end is passed inside oil tank cap lateral wall and is extended to the oil tank cap, push rod one side is equipped with the dog, a first pressure sensor of dog bottom fixedly connected with, the dog intersects with the pressure release passageway middle part, dog and pressure release passageway looks adaptation, dog one side fixedly connected with spring, spring one end and oil tank cap inner wall fixed connection, the inside electric putter that is equipped with of spring, electric putter one end and oil tank cap inner wall fixed connection, the electric putter other end and dog one end fixed connection, be equipped with the AD converter between a pressure sensor and the singlechip, be equipped with the DA converter between electric putter and the singlechip, the inside bottom of pressure release passageway is equipped with the check valve.
In a preferred embodiment, the outer box and the inner box are fixedly connected through a plurality of fixing struts, and the fixing struts are integrally cast with the outer box and the inner box.
In a preferred embodiment, the sealed chamber is internally provided with a high-pressure liquid.
In a preferred embodiment, one end of the anti-theft net extends to the inside of the inner box, the outside of the anti-theft net and the outer box and the inner box are welded, and a plurality of oil inlet holes are formed in the anti-theft net.
In a preferred embodiment, an oil storage tank is arranged at the bottom of the inner box, an oil outlet pipe is arranged on the other side of the top of the outer box, one end of the oil outlet pipe penetrates through the top of the outer box and the top of the inner box and extends to the inside of the oil storage tank, and a rubber cushion block is fixedly connected to the bottom of the outer box.
In a preferred embodiment, the second pressure sensor is connected to the single chip via an a/D converter, the second pressure sensor is electrically connected to the analog-to-digital converter, the single chip is connected to the speaker via a D/a converter, and the D/a converter is electrically connected to the speaker.
In a preferred embodiment, the pressure relief channel is arranged inside the fuel tank cap, and a passage is arranged between the bottom of the pressure relief channel and the anti-theft net.
In a preferred embodiment, the one-way valve is adapted to the inner wall of the spring.
The utility model discloses a technological effect and advantage:
1. when a negative pressure is generated in the running process of a vehicle, the first pressure sensor senses the difference between the internal pressure and the external pressure, a pressure signal is transmitted to the single chip microcomputer through the A/D converter, the single chip microcomputer transmits an instruction to the electric push rod through the D/A converter, the electric push rod contracts to enable the stop block to move, the oil tank is protected, and compared with the prior art, the situation that the oil tank cover cannot be opened due to the generation of the negative pressure in the oil tank is avoided;
2. through filling in the inside high-pressure liquid that fills of sealed cavity, install second pressure sensor and detect pressure variation in the inside of sealed cavity, when oil theft thief uses the small-size drill bit to the oil tank trompil, the outer container is worn out to the drill bit, high-pressure liquid spills over from the drilling, the inside pressure variation of sealed cavity is monitored to second pressure sensor, give the singlechip with pressure signal transmission, the singlechip sends alert signal through the speaker after handling pressure signal, speaker broadcast audio frequency, the oil theft thief is stolen in the warning, compared with the prior art, even oil theft thief also can't explain the theftproof from the direct trompil of oil tank box.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1 according to the present invention.
Fig. 3 is a schematic view of the outer box structure of the present invention.
Fig. 4 is a flow chart of the anti-theft system of the present invention.
Fig. 5 is a schematic view of the anti-theft net of the present invention.
Fig. 6 is a sectional view of the fuel tank cap of the present invention.
The reference signs are: the anti-theft oil tank comprises an outer tank 1, an inner tank 2, a sealing cavity 3, an oil tank cover 4, an anti-theft net 5, an oil outlet pipe 6, a rubber cushion block 7, a second pressure sensor 8, a single chip microcomputer 9, a loudspeaker 10, a pressure relief channel 11, a push rod 12, a stop dog 13, a spring 14, a check valve 15, a first pressure sensor 16 and an electric push rod 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides an oil tank anti-theft device as shown in figures 1, 5 and 6, which comprises an outer tank 1 and an inner tank 2, wherein the top of the outer tank 1 is provided with a singlechip 9, the singlechip 9 is fixedly connected with the outer tank 1, a sealed cavity 3 is formed between the outer tank 1 and the inner tank 2, one side of the top of the outer tank 1 is provided with an oil tank cover 4, the bottom of the oil tank cover 4 is provided with an anti-theft net 5, the anti-theft net 5 is in threaded connection with the oil tank cover 4, a pressure relief mechanism is arranged inside the oil tank cover 4, and an anti-theft system is arranged on the outer tank 1;
the pressure relief mechanism comprises a pressure relief channel 11, a push rod 12 is arranged outside the oil tank cover 4, one end of the push rod 12 penetrates through one side wall of the oil tank cover 4 and extends into the oil tank cover 4, a stop block 13 is arranged on one side of the push rod 12, a first pressure sensor 16 is fixedly connected to the bottom of the stop block 13, the middle of the stop block 13 is intersected with the middle of the pressure relief channel 11, the stop block 13 is matched with the pressure relief channel 11, a spring 14 is fixedly connected to one side of the stop block 13, one end of the spring 14 is fixedly connected with the inner wall of the oil tank cover 4, an electric push rod 17 is arranged inside the spring 14, one end of the electric push rod 17 is fixedly connected with the inner wall of the oil tank cover 4, the other end of the electric push rod 17 is fixedly connected with one end of the stop block 13, an A/D converter is, the bottom end in the pressure relief channel 11 is provided with a one-way valve 15;
the pressure relief channel 11 is arranged inside the oil tank cover 4, and a passage is arranged between the bottom of the pressure relief channel 11 and the anti-theft net 5;
the one-way valve 15 is adapted to the inner wall of the spring 14.
The implementation mode is specifically as follows: when negative pressure is generated in the oil tank, a common oil tank cover cannot be normally opened or is difficult to open, oiling work cannot be performed, when the oil tank cover 4 cannot be normally opened, the push rod 12 is pressed down, the push rod 12 pushes the stop block 13 to move, the spring 14 is compressed, the position of the stop block 13 relative to the pressure relief channel 11 is changed, the check valve 15 is influenced by the change of internal pressure and external pressure, the external pressure is larger than the internal pressure, the check valve 15 is opened to enable external air to enter the oil tank through the pressure relief channel 11, the internal pressure of the oil tank is balanced, the check valve 15 can block volatile fuel steam, the fuel steam is prevented from overflowing, economic loss is caused to a vehicle owner, the spring 14 is released, the stop block 13 and the push rod 12 are reset, the oil tank cover 4 can be easily screwed down to oil the oil tank, when negative pressure is generated in the driving process of a vehicle, the first pressure sensor 16 senses, singlechip 9 transmits the instruction for electric putter 17 through the D/A converter, and electric putter 17 contracts and makes dog 13 remove, balanced inside and outside pressure, the protection oil tank, and simple structure, the practicality is strong, and this embodiment has specifically solved among the prior art if the oil tank is inside to produce the problem that the work can't easily refuel because of the fault produces the negative pressure.
The utility model provides an oil tank anti-theft device as shown in figures 1-4, which further comprises an anti-theft system, wherein the anti-theft system comprises a second pressure sensor 8, the second pressure sensor 8 is arranged inside the sealed cavity 3, the sealed cavity 3 is fixedly connected with the outer wall of the inner box 2, one side of the singlechip 9 is provided with a loudspeaker 10, and the loudspeaker 10 is fixedly connected with the outer box 1;
the outer box 1 and the inner box 2 are fixedly connected through a plurality of fixed support rods, and the fixed support rods, the outer box 1 and the inner box 2 are integrally cast and formed;
high-pressure liquid is arranged in the sealing cavity 3;
one end of the anti-theft net 5 extends into the inner box 2, the outer part of the anti-theft net 5 and the outer box 1 and the inner box 2 are welded, and a plurality of oil inlet holes are formed in the anti-theft net 5;
an oil storage tank is arranged at the bottom of the inner box 2, an oil outlet pipe 6 is arranged on the other side of the top of the outer box 1, one end of the oil outlet pipe 6 penetrates through the tops of the outer box 1 and the inner box 2 and extends into the oil storage tank, and a rubber cushion block 7 is fixedly connected to the bottom of the outer box 1;
the second pressure sensor 8 is connected with the single chip microcomputer 9 through an A/D converter, the second pressure sensor 8 is electrically connected with the analog-to-digital converter, the single chip microcomputer 9 is connected with the loudspeaker 10 through a D/A converter, and the D/A converter is electrically connected with the loudspeaker 10.
The implementation mode is specifically as follows: the rubber cushion block 7 is arranged at the bottom of the outer box 1, the outer box 1 can be protected from hard collision with other parts, sparks are avoided, the oil outlet pipe 6 can fully use fuel oil in the inner box 2 through the design of the oil storage tank, the fuel oil is prevented from being stored, the oil tank is divided into the outer box 1 and the inner box 2, the inner box 2 can still protect the fuel oil even if the outer box 1 is drilled, the anti-theft net 5 is arranged at the bottom of the oil tank cover 4, the oil pumping pipe of an oil thief cannot pump oil through the anti-theft net 5 even if the oil thief opens the oil tank cover 4, the second pressure sensor 8 is arranged in the sealed cavity 3 to detect pressure change through filling high-pressure liquid in the sealed cavity 3, when the oil thief uses a small drill bit to open a hole in the oil tank, the drill bit penetrates through the outer box 1, the high-pressure liquid overflows from the drill hole, the second pressure sensor 8 detects the pressure change in the sealed cavity 3, and transmits, the single chip microcomputer 9 sends out warning signals through the loudspeaker 10 after processing the pressure signals, the loudspeaker 10 plays audio, and warns of oil theft, the model of the second pressure sensor 8 is MSP40-G, the model of the single chip microcomputer 9 is AT89C51, the system can realize that the loudspeaker 10 plays audio, and the anti-theft alarm system specifically solves the problem that in the prior art, if the oil theft directly opens a hole from the oil tank body, the anti-theft alarm system is invalid.
The utility model discloses the theory of operation:
referring to the attached figures 1, 5 and 6 of the specification, by pressing down the push rod 12, the position of the stop block 13 relative to the pressure relief channel 11 is changed, the one-way valve 15 is opened to enable outside air to enter the oil tank through the pressure relief channel 11 to balance the pressure in the oil tank, when a negative pressure is generated in the running process of a vehicle, the first pressure sensor 16 senses the difference between the inside pressure and the outside pressure and transmits a pressure signal to the single chip microcomputer 9 through the A/D converter, the single chip microcomputer 9 transmits an instruction to the electric push rod 17 through the D/A converter, and the electric push rod 17 contracts to enable the stop block 13 to move;
referring to the attached drawings 1-4 of the specification, high-pressure liquid is filled in the sealed cavity 3, the second pressure sensor 8 is installed in the sealed cavity 3 to detect pressure changes, when a thief uses a small-sized drill to open a hole in an oil tank, the drill breaks through the outer tank 1, the high-pressure liquid overflows from a drilled hole, the second pressure sensor 8 monitors the pressure changes in the sealed cavity 3, pressure signals are transmitted to the single chip microcomputer 9, the single chip microcomputer 9 processes the pressure signals and then sends warning signals through the loudspeaker 10, the loudspeaker 10 plays audio, and the thief is warned.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an oil tank anti-theft device, includes outer container (1) and inner box (2), its characterized in that: the anti-theft oil tank is characterized in that a single chip microcomputer (9) is arranged at the top of the outer tank (1), the single chip microcomputer (9) is fixedly connected with the outer tank (1), a sealed cavity (3) is formed between the outer tank (1) and the inner tank (2), an oil tank cover (4) is arranged on one side of the top of the outer tank (1), an anti-theft net (5) is arranged at the bottom of the oil tank cover (4), the anti-theft net (5) is in threaded connection with the oil tank cover (4), a pressure relief mechanism is arranged inside the oil tank cover (4), and an anti-theft system is arranged on the outer tank (1);
the pressure relief mechanism comprises a pressure relief channel (11), a push rod (12) is arranged outside the oil tank cover (4), one end of the push rod (12) penetrates through a side wall of the oil tank cover (4) and extends to the inside of the oil tank cover (4), a stop block (13) is arranged on one side of the push rod (12), a first pressure sensor (16) is fixedly connected to the bottom of the stop block (13), the stop block (13) is intersected with the middle of the pressure relief channel (11), the stop block (13) is matched with the pressure relief channel (11), a spring (14) is fixedly connected to one side of the stop block (13), one end of the spring (14) is fixedly connected with the inner wall of the oil tank cover (4), an electric push rod (17) is arranged inside the spring (14), one end of the electric push rod (17) is fixedly connected with the inner wall of the oil tank cover (4), the other end of the electric, an A/D converter is arranged between the first pressure sensor (16) and the single chip microcomputer (9), a D/A converter is arranged between the electric push rod (17) and the single chip microcomputer (9), and a one-way valve (15) is arranged at the bottom end inside the pressure relief channel (11);
the anti-theft system comprises a second pressure sensor (8), the second pressure sensor (8) is arranged inside the sealed cavity (3), the sealed cavity (3) is fixedly connected with the outer wall of the inner box (2), a loudspeaker (10) is arranged on one side of the single chip microcomputer (9), and the loudspeaker (10) is fixedly connected with the outer box (1).
2. A fuel tank theft preventing device according to claim 1, wherein: outer container (1) and interior case (2) are through a plurality of fixed branch fixed connection between, fixed branch and outer container (1) and interior case (2) integrated into one piece.
3. A fuel tank theft preventing device according to claim 1, wherein: and high-pressure liquid is arranged in the sealing cavity (3).
4. A fuel tank theft preventing device according to claim 1, wherein: inside anti-theft net (5) one end extended to inner box (2), all set up to the welding between anti-theft net (5) outside and outer container (1) and inner box (2), a plurality of inlet ports have been seted up on anti-theft net (5).
5. A fuel tank theft preventing device according to claim 1, wherein: the oil storage tank is arranged at the bottom of the inner box (2), the oil outlet pipe (6) is arranged on the other side of the top of the outer box (1), one end of the oil outlet pipe (6) penetrates through the tops of the outer box (1) and the inner box (2) and extends to the inside of the oil storage tank, and the rubber cushion block (7) is fixedly connected to the bottom of the outer box (1).
6. A fuel tank theft preventing device according to claim 1, wherein: the second pressure sensor (8) is connected with the single chip microcomputer (9) through an A/D converter, the second pressure sensor (8) is electrically connected with the analog-to-digital converter, the single chip microcomputer (9) is connected with the loudspeaker (10) through a D/A converter, and the D/A converter is electrically connected with the loudspeaker (10).
7. A fuel tank theft preventing device according to claim 1, wherein: the pressure relief channel (11) is arranged inside the oil tank cover (4), and a passage is formed between the bottom of the pressure relief channel (11) and the anti-theft net (5).
8. A fuel tank theft preventing device according to claim 1, wherein: the one-way valve (15) is matched with the inner wall of the spring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921623354.6U CN210760241U (en) | 2019-09-27 | 2019-09-27 | Oil tank anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921623354.6U CN210760241U (en) | 2019-09-27 | 2019-09-27 | Oil tank anti-theft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210760241U true CN210760241U (en) | 2020-06-16 |
Family
ID=71066036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921623354.6U Expired - Fee Related CN210760241U (en) | 2019-09-27 | 2019-09-27 | Oil tank anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210760241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111775692A (en) * | 2020-07-24 | 2020-10-16 | 安达市雄励电气信号设备装置制造有限公司 | Oil stealing prevention structure for oil tank |
| CN113390486A (en) * | 2021-06-10 | 2021-09-14 | 浙江志高机械股份有限公司 | Device for testing oil level of multiple fuel tanks of automatic drilling machine |
-
2019
- 2019-09-27 CN CN201921623354.6U patent/CN210760241U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111775692A (en) * | 2020-07-24 | 2020-10-16 | 安达市雄励电气信号设备装置制造有限公司 | Oil stealing prevention structure for oil tank |
| CN111775692B (en) * | 2020-07-24 | 2023-02-10 | 安达市雄励电气信号设备装置制造有限公司 | Oil theft prevention structure for oil tank |
| CN113390486A (en) * | 2021-06-10 | 2021-09-14 | 浙江志高机械股份有限公司 | Device for testing oil level of multiple fuel tanks of automatic drilling machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210760241U (en) | Oil tank anti-theft device | |
| US10962398B2 (en) | Measuring tank fluids and remote monitoring system | |
| AU2017345577B2 (en) | Inflation manifold | |
| CN103511645B (en) | A kind of vessel valve visiting fire tube fire-fighting equipment | |
| US20120234770A1 (en) | Filter assembly and control system | |
| CN205745578U (en) | Emergency cut-off bottom valve | |
| US20220355138A1 (en) | Battery arrangement having an extinguishing agent supply device, motor vehicle, and method for protecting a battery | |
| CN106394440A (en) | Trailer and packaging system for trailer electrical components | |
| CN208085480U (en) | A kind of guard against theft oil truck oil tank | |
| CN201554894U (en) | Ball valve with electronic lead sealing sensor | |
| CN212267225U (en) | Multifunctional automobile fuel tank | |
| CN117416329A (en) | Hydraulic braking pressure produces module trouble prediction alarm system | |
| JP6162796B2 (en) | FUEL SUPPLY DEVICE FOR INTERNAL COMBUSTION ENGINE AND FUEL FILTER MOUNTING METHOD | |
| CN214412854U (en) | Vehicle-mounted waterproof camera | |
| CN216518286U (en) | Fuel leakage alarm system for electronic control common rail diesel engine | |
| CN102476784A (en) | Method and equipment for filling brake fluid of motor vehicle | |
| CN110949123A (en) | Double-layer automobile anti-theft oil tank | |
| CN211039204U (en) | Hydraulic oil way block blockage dredging device | |
| CN206255062U (en) | A kind of safe and reliable power steering oil reservoir assembly | |
| JP4407888B2 (en) | Antenna body and buried pipe damage monitoring system using the same | |
| CN208502854U (en) | A kind of positioning device for pressure shell and middle body | |
| CN106114077B (en) | A kind of explosion prevention tyre hub and the vehicle equipped with the wheel hub | |
| CN108001524A (en) | A kind of safe and reliable power steering oil reservoir assembly | |
| CN203769670U (en) | Tubular column pull-out-resistant alarming and protecting machine | |
| CN210526297U (en) | Leak-proof anti-theft monitoring type trailer reserve oil tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |