CN111532344A - Cover plate assembly, power cabin and engineering machinery - Google Patents
Cover plate assembly, power cabin and engineering machinery Download PDFInfo
- Publication number
- CN111532344A CN111532344A CN202010398475.6A CN202010398475A CN111532344A CN 111532344 A CN111532344 A CN 111532344A CN 202010398475 A CN202010398475 A CN 202010398475A CN 111532344 A CN111532344 A CN 111532344A
- Authority
- CN
- China
- Prior art keywords
- cover
- cover plate
- wall
- connecting piece
- plate assembly
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
- B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/12—Parts or details thereof
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention relates to the technical field of engineering machinery, in particular to a cover plate assembly, a power cabin and engineering machinery. The cover plate assembly is used for being matched with the air opening of the wall plate and comprises a cover body and at least one connecting piece; one end of the connecting piece is arranged on the cover body, and the other end of the connecting piece is arranged at the air inlet of the wall plate; the connecting piece is used for enabling the cover plate assembly to have a first state that the cover body opens the air opening at high temperature and a second state that the cover body closes the air opening at low temperature. The tuyere can be automatically opened or closed to adapt to the operation of the engineering machinery.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a cover plate assembly, a power cabin and engineering machinery.
Background
The general moving speed of the engineering machinery is not high during operation, so compared with an automobile, the engineering machinery generally has the problems of poor natural heat dissipation conditions and insufficient air cooling effect. Therefore, in summer or some areas with higher environmental temperature, the heat dissipation needs to be enhanced, and sometimes even the power cabin cover needs to be completely removed to achieve the maximum heat dissipation.
In winter or in some areas with lower environmental temperature, heat dissipation needs to be reduced to ensure the smooth starting and working of the equipment, and all the air ports of the power compartment need to be ensured to be closed.
In the prior art, the power hatch cover is arranged through manual operation, and is inconvenient to use.
Disclosure of Invention
The invention aims to provide a cover plate assembly, a power compartment and a engineering machine, which can automatically open or close an air opening to adapt to the operation of the engineering machine.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment of the present invention provides a cover plate assembly for cooperating with a tuyere of a wall plate, including:
a cover and at least one connector;
one end of the connecting piece is arranged on the cover body, and the other end of the connecting piece is arranged at an air inlet of the wall plate;
the connecting piece is used for enabling the cover body to have a first state of opening the air opening when the cover plate assembly is at a high temperature and a second state of closing the air opening when the cover plate assembly is at a low temperature.
The cover plate assembly of the embodiment can automatically close the air opening in winter or in an area with lower environmental temperature by matching with the wall plate so as to achieve the heat preservation effect; the air inlet can be automatically opened in summer or in a region with a higher temperature environment so as to achieve the effect of strengthening heat dissipation, so that the power cabin cover does not need to be manually detached. The working strength of operators is reduced, and the working efficiency is improved.
In an alternative embodiment, the connector is made of a memory alloy.
The shape memory alloy is used as a sensor and an actuator for mode conversion of the cover assembly, and the mode conversion of the cover assembly between the maximum heat preservation mode and the maximum heat dissipation mode induced by temperature change is possible automatically. Meanwhile, extra power and control are not required to be provided, and the device has the advantage of high reliability.
In an alternative embodiment, the wall panel has an inner wall proximate the engine and an outer wall distal from the engine;
one end of the connecting piece is arranged on the inner wall.
So ensured the connecting piece can not interfere wallboard and lid when switching between first state and second state, and set up the connecting piece on the inner wall and make the wallboard have more outstanding surperficial aesthetic feeling.
In an alternative embodiment, when the connecting member is in the first state, a predetermined gap is formed between the wall plate and the cover body.
There is no extra connecting part between the wall plate and the cover body, so that the structure of the cover plate assembly is simpler. The wall plate and the cover body with the gaps provide buffer distances for deformation of the connecting piece, the wall plate and the cover body under different temperature conditions.
In an alternative embodiment, when the connecting member is in the first state, the wall plate and the cover body form a predetermined included angle therebetween.
When the connecting piece is in first state, wallboard and lid are in the state of buckling each other, so can accomplish the operation that the wind gap was opened convenient and fast.
In an alternative embodiment, the wall plate and the cover body abut against each other when the connecting member is in the second state.
So when making the wind gap closed, the leakproofness of lid and wind gap is better.
In an alternative embodiment, the wall panel and the cover are parallel to each other when the connector is in the second state.
In a second aspect, embodiments of the present disclosure provide a power pod comprising an engine, a wall panel, and a cover plate assembly as described in any of the preceding embodiments;
the engine is positioned in an accommodating space enclosed by the wall plate, the wall plate is provided with a plurality of air ports penetrating through the wall plate, and the cover plate assemblies correspond to the air ports in number one to one;
each cover plate component corresponds to a preset air opening so as to open or close the air opening.
In an alternative embodiment, a plurality of the tuyeres are arranged to extend in a preset direction.
The radiating effect of a plurality of wind gaps is guaranteed to be more outstanding.
In a third aspect, an embodiment of the present invention provides a working machine, where the working machine includes the power cabin described in the foregoing embodiment.
The beneficial effects of the embodiment of the invention include, for example:
the cover plate assembly utilizes the characteristics of the connecting piece, so that the matching of the cover body and the air opening can be directly induced by the ambient temperature without human intervention when the maximum heat preservation mode (closing the air opening) and the maximum heat dissipation mode (opening the air opening) are switched. Meanwhile, the structure is simple, the operation is reliable, and the durability and the service life are long.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of the cover plate assembly in a first state according to the present embodiment;
FIG. 2 is a partial schematic view of FIG. 1;
FIG. 3 is a schematic structural diagram of the cover plate assembly in the second state according to the present embodiment;
fig. 4 is a partial schematic view of fig. 3.
Icon: 10-a cover plate assembly; 100-a cover body; 200-a connector; 20-wall plates; 21-inner wall; 22-outer wall; 23-tuyere.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The engineering machinery can greatly improve the labor production efficiency and is widely applied to various fields of infrastructure construction at present. The engineering machinery usually works on a construction site, the working environment is severe, and the working requirement is high, so that most of the existing engineering machinery adopts a diesel engine to provide motive power for movement/operation. Thus, the problem of difficulty in starting the equipment due to low temperature may occur in winter or in some areas where the ambient temperature is low.
In addition, the construction machine generally has a low moving speed during operation, so that the natural heat dissipation condition is poor and the air cooling effect is insufficient compared with an automobile. Therefore, in summer or some areas with higher environmental temperature, the heat dissipation needs to be enhanced, and sometimes even the power cabin cover needs to be completely removed to achieve the maximum heat dissipation.
To overcome the above problems, a cover plate assembly 10 is provided in the following embodiments.
Referring to fig. 1, the present embodiment provides a cover plate assembly 10 for cooperating with a tuyere 23 of a wall plate 20, comprising a cover body 100 and at least one connecting member 200.
One end of the connector 200 is disposed on the cover body 100, and the other end of the connector 200 is disposed at the tuyere 23 of the wall plate 20;
the connection member 200 is used to provide the cover assembly 10 with a first state in which the cover 100 opens the tuyere 23 at a high temperature and a second state in which the cover 100 closes the tuyere 23 at a low temperature.
The cover plate assembly 10 of the present embodiment, by cooperating with the wall plate 20, can automatically close the tuyere 23 in winter or in an area with a low ambient temperature to achieve a heat preservation effect; the air opening 23 can be automatically opened in summer or in a region with a high temperature environment so as to achieve the effect of enhancing heat dissipation, so that the power cabin cover does not need to be manually detached. The working strength of operators is reduced, and the working efficiency is improved.
It should be noted that in the present embodiment, only one connecting member 200 is provided on one cover body 100, so that the connecting member 200 can be switched between the first state and the second state.
In other embodiments of the present invention, a plurality of the connection members 200 may be provided on the cover body 100, as long as the connection members 200 enable the cover body 100 to open the tuyere 23 at a high temperature and/or enable the cover body 100 to close the tuyere 23 at a low temperature, which is not limited herein.
Please continue to refer to fig. 1 to 4 for further details of the cover plate assembly 10.
In the present embodiment of the invention, the connecting member 200 is made of a memory alloy.
The memory alloy is a martensitic phase change alloy with a regular atomic arrangement and a volume change of less than 0.5%. After the alloy is processed into a certain shape under a certain higher temperature condition, when the temperature is reduced to another temperature condition, the alloy can automatically return to the shape before processing and forming, and when the temperature is increased again, the alloy can automatically return to the shape after processing and forming. It is called "memory alloy" because it has a recovery function more than a million times. More precisely, it should be referred to as "shape memory alloy". In addition, the memory alloy also has the advantages of non-magnetism, wear resistance, corrosion resistance and no toxicity, so the memory alloy is very widely applied.
Specifically, Shape Memory Alloys (SMA) are materials composed of two or more metal elements having a Shape Memory Effect (SME) by thermo-elastic and martensitic transformation and inversion thereof.
Where the shape memory alloy is used as a sensor and actuator for the mode transition of the cover assembly 10, it is possible for the cover assembly 10 to automatically transition between the maximum soak mode and the maximum heat release mode, which is induced by a temperature change. Meanwhile, extra power and control are not required to be provided, and the device has the advantage of high reliability.
In the present embodiment of the invention, the wall panel 20 has an inner wall 21 close to the engine and an outer wall 22 remote from the engine; one end of the connector 200 is disposed on the inner wall 21.
This ensures that the connector 200 does not interfere with the wall plate 20 and the cover body 100 when switching between the first state and the second state, and the connector 200 provided on the inner wall 21 makes the wall plate 20 have more excellent surface beauty. It should be noted that, in other embodiments of the present invention, the connection member 200 may also be disposed at the outer wall 22, the edge of the tuyere 23, and the like, as long as the connection member 200 can achieve the first state and the second state of the cover plate assembly 10, which is not limited herein.
Alternatively, both ends of the connecting member 200 are welded to the cover body 100 and the wall plate 20, respectively. The welding has the characteristics of low cost, simple and reliable operation and good stability. It should be noted that in other embodiments of the present invention, the connecting member 200 may be connected to the cover body 100 and the wall plate 20 by screwing, riveting, or the like, which is merely an example.
In the present embodiment of the invention, when the connecting member 200 is in the first state, a predetermined gap is formed between the wall plate 20 and the cover body 100.
There is no additional connection part between the wall plate 20 and the cover body 100, so that the structure of the cover plate assembly 10 is simpler. The wall plate 20 and the lid body 100 having the slits provide a buffering distance for the deformation amount of the connector 200, the wall plate 20 and the lid body 100 under different temperature conditions. The cover 100, the wall plate 20 and the connecting member 200 in this embodiment are made of metal, so that they have a certain metal ductility and are easily expanded or contracted under a predetermined temperature condition, and the gap provides a buffer space for the expansion of each component.
Further, as shown in fig. 2, in the present embodiment, when the connecting member 200 is in the first state, the wall plate 20 and the cover 100 form a predetermined included angle therebetween.
When the connection member 200 is in the first state, the wall plate 20 and the cover body 100 are in a mutually bent state, so that the opening operation of the tuyere 23 can be conveniently and rapidly completed.
Referring to fig. 4, in the present embodiment, when the connecting member 200 is in the second state, the wall plate 20 and the cover 100 abut against each other. When the tuyere 23 is closed, the sealing performance between the cover 100 and the tuyere 23 is improved.
Alternatively, the wall plate 20 and the cover body 100 are parallel to each other when the connecting member 200 is in the second state. The wall plate 20 and the cover body 100 which are parallel to each other avoid interference of the wall plate 20 and the cover body 100 while ensuring the sealing of the tuyere 23. Compared with the cover body 100 embedded in the air opening 23, the structure is simpler, the operation is more convenient, and the reliability is more excellent.
When the cover plate assembly is used, when the cover plate assembly is in winter or the ambient temperature is low, the shape memory alloy keeps a low-temperature shape, all the cover bodies 100 are in a closed position at the moment, the air openings 23 are closed, and the cover plate assembly 10 is in a maximum heat preservation mode; when the temperature is in summer or the environment temperature is high, the shape memory alloy keeps a high-temperature shape, all the cover bodies 100 are at the opening positions, the air openings 23 are opened, and the cover plate assembly 10 is in the maximum heat dissipation mode.
In a second aspect, embodiments of the present invention provide a power pod comprising an engine, a wall panel 20 and the cover assembly 10 of any of the preceding embodiments;
the engine is positioned in the accommodating space enclosed by the wall plate 20, the wall plate 20 is provided with a plurality of air ports 23 which penetrate through, and the cover plate assemblies 10 correspond to the air ports 23 in number one by one;
each cover plate assembly 10 corresponds to a predetermined tuyere 23 to achieve opening or closing of the tuyere 23.
In the present embodiment of the present invention, the plurality of tuyeres 23 are arranged to extend in a preset direction. The heat dissipation effect of the plurality of air ports 23 is more outstanding.
In a third aspect, an embodiment of the present invention provides a working machine, where the working machine includes the power compartment of the foregoing embodiment. Such a construction machine can be adapted to a wider range of temperature environments.
In summary, the embodiment of the present invention provides a cover plate assembly 10, a power cabin and an engineering machine, which have at least the following advantages:
the cover assembly 10 utilizes the characteristics of the connection member 200, so that the cooperation between the cover 100 and the air opening 23 can be directly induced by the ambient temperature without human intervention when the maximum heat preservation mode (closing the air opening 23) and the maximum heat dissipation mode (opening the air opening 23) are switched. Meanwhile, the structure is simple, the operation is reliable, and the durability and the service life are long.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A cover plate assembly for mating with a tuyere of a wall plate, comprising:
a cover and at least one connector;
one end of the connecting piece is arranged on the cover body, and the other end of the connecting piece is arranged at the air inlet of the wall plate;
the connecting piece is used for enabling the cover body to have a first state of opening the air opening when the cover plate assembly is at a high temperature and a second state of closing the air opening when the cover plate assembly is at a low temperature.
2. The cover plate assembly of claim 1, wherein:
the connecting piece is made of memory alloy.
3. The cover plate assembly of claim 1, wherein:
the wall plate has an inner wall close to the engine and an outer wall far away from the engine;
one end of the connecting piece is arranged on the inner wall.
4. The cover plate assembly of claim 1, wherein:
when the connecting piece is in the first state, a preset gap is formed between the wall plate and the cover body.
5. The cover plate assembly of claim 1, wherein:
when the connecting piece is in the first state, a preset included angle is formed between the wall plate and the cover body.
6. The cover plate assembly of claim 1, wherein:
when the connecting piece is in the second state, the wall plate and the cover body are mutually abutted.
7. The cover plate assembly of claim 1, wherein:
when the connecting piece is in the second state, the wall plate and the cover body are parallel to each other.
8. A power pod, comprising:
the power pod comprising an engine, a wall panel, and the cover assembly of any of claims 1-7;
the engine is positioned in an accommodating space enclosed by the wall plate, the wall plate is provided with a plurality of air ports penetrating through the wall plate, and the cover plate assemblies correspond to the air ports in number one to one;
each cover plate component corresponds to a preset air opening so as to open or close the air opening.
9. The power pod of claim 8 wherein:
the plurality of air ports extend and are arranged along a preset direction.
10. A construction machine characterized in that:
the work machine comprising a power pod according to claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398475.6A CN111532344A (en) | 2020-05-12 | 2020-05-12 | Cover plate assembly, power cabin and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398475.6A CN111532344A (en) | 2020-05-12 | 2020-05-12 | Cover plate assembly, power cabin and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111532344A true CN111532344A (en) | 2020-08-14 |
Family
ID=71972058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398475.6A Pending CN111532344A (en) | 2020-05-12 | 2020-05-12 | Cover plate assembly, power cabin and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111532344A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890124A (en) * | 2003-12-04 | 2007-01-03 | 通用汽车公司 | Airflow control devices based on active materials |
| CN101934708A (en) * | 2009-06-26 | 2011-01-05 | 通用汽车环球科技运作公司 | Marmem active capsule gate open gas |
| CN102016262A (en) * | 2008-01-04 | 2011-04-13 | 通用汽车环球科技运作公司 | Active air vent utilizing smart material actuation |
| DE102014016353A1 (en) * | 2014-11-05 | 2015-06-18 | Daimler Ag | Cladding element for a unit to be cooled of a motor vehicle |
| DE102015102935A1 (en) * | 2015-03-02 | 2016-09-08 | Claas Tractor Sas | Agricultural working machine |
| US20170087976A1 (en) * | 2015-09-29 | 2017-03-30 | Kubota Corporation | Work Vehicle |
-
2020
- 2020-05-12 CN CN202010398475.6A patent/CN111532344A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890124A (en) * | 2003-12-04 | 2007-01-03 | 通用汽车公司 | Airflow control devices based on active materials |
| CN102016262A (en) * | 2008-01-04 | 2011-04-13 | 通用汽车环球科技运作公司 | Active air vent utilizing smart material actuation |
| CN101934708A (en) * | 2009-06-26 | 2011-01-05 | 通用汽车环球科技运作公司 | Marmem active capsule gate open gas |
| DE102014016353A1 (en) * | 2014-11-05 | 2015-06-18 | Daimler Ag | Cladding element for a unit to be cooled of a motor vehicle |
| DE102015102935A1 (en) * | 2015-03-02 | 2016-09-08 | Claas Tractor Sas | Agricultural working machine |
| US20170087976A1 (en) * | 2015-09-29 | 2017-03-30 | Kubota Corporation | Work Vehicle |
Non-Patent Citations (2)
| Title |
|---|
| 李俊寿: "《新材料概论》", 31 August 2004, 国防工业出版社 * |
| 王虹元等: "《工程材料及热处理》", 30 June 2017, 华中科技大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8443600B2 (en) | Actuator comprising elements made of shape memory alloy with broadened range of working temperatures | |
| EP4006465A1 (en) | Refrigerator | |
| JP4577813B2 (en) | Sealing device | |
| US20120073277A1 (en) | Valve for motor vehicle exhaust muffler | |
| US7885695B2 (en) | Electronic device with overlapping sledge portion | |
| CN101285363A (en) | Door actuation system | |
| CN111532344A (en) | Cover plate assembly, power cabin and engineering machinery | |
| US20060207207A1 (en) | Method for manufacturing a panel-shaped component, and a body component | |
| EP1703046A3 (en) | Lock | |
| CN100556258C (en) | Portable electron device | |
| CN104122938B (en) | Bolting structure | |
| US6393765B1 (en) | Superelastic sealing closures | |
| CN210370420U (en) | Door frame sealing structure of high-low temperature damp-heat test box | |
| CN106450791A (en) | Large-size spatial parabolic cylinder-shaped reelable metal surface antenna reflection surface structure | |
| CN206755703U (en) | A kind of refrigerator ice-making room door lock, refrigerator ice-making room door and refrigerator | |
| CN216921758U (en) | Hinge assembly and cooking appliance | |
| CN207314674U (en) | The fixture of tropical cyclone is resisted for strengthening metal roofing board bearing capacity | |
| CN103089878A (en) | Torsion spring and cover-lift type equipment utilizing same | |
| CN209726489U (en) | Outer cover of water heater and gas heater with buckle | |
| CN207646901U (en) | deformation joint sealing structure | |
| CN209786917U (en) | Three-point positioning mechanism for sealing groove of electronic water pump | |
| CN112195766A (en) | Butt-joint type soft steel damping damper | |
| CN216898018U (en) | Refrigerator trim structure and refrigerator | |
| CN111911241A (en) | Axial positioning and cooling sealing structure of guide vane | |
| CN214367715U (en) | Double-layer reinforced C-shaped metal sealing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200814 |
|
| RJ01 | Rejection of invention patent application after publication |