CN112577214A - Heat pump equipment convenient to installation and use - Google Patents
Heat pump equipment convenient to installation and use Download PDFInfo
- Publication number
- CN112577214A CN112577214A CN202011594144.6A CN202011594144A CN112577214A CN 112577214 A CN112577214 A CN 112577214A CN 202011594144 A CN202011594144 A CN 202011594144A CN 112577214 A CN112577214 A CN 112577214A
- Authority
- CN
- China
- Prior art keywords
- box body
- heat pump
- protective frame
- box
- install
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000009434 installation Methods 0.000 title abstract description 28
- 230000001681 protective effect Effects 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000008093 supporting effect Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000003570 air Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M3/00—Portable or wheeled frames or beds, e.g. for emergency power-supply aggregates, compressor sets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides heat pump equipment convenient to install and use, which comprises a box body, a heat exchange mechanism arranged above the box body and a heat pump mechanism arranged below the box body, wherein a shielding mechanism is arranged on the outer side of the box body and comprises a lower protective frame arranged below the box body and an upper protective frame arranged above the box body; the utility model discloses a support frame, including box, lower support post, upper fender bracket, lower support post, box, locating component, lower support post, upper fender bracket, lower fender bracket. The invention has simple structure, easy installation and use, convenient installation, good reliability and safety after transportation and installation, difficult damage, greatly reduced installation and use cost of the heat pump equipment, and is beneficial to large-scale popularization and use.
Description
Technical Field
The invention belongs to the field of heat pumps, and particularly relates to a heat pump device convenient to install and use.
Background
The air source heat pump is an energy-saving device which utilizes high-level energy to enable heat to flow from low-level heat source air to a high-level heat source, is a form of heat pump, and as the name suggests, the heat pump is just like a pump, can convert low-level heat energy which cannot be directly utilized, such as heat contained in air, soil and water, into high-level heat energy which can be utilized, thereby achieving the purpose of saving partial energy consumption; the existing heat pump equipment is generally troublesome to install and transport, and is not beneficial to installation and use, and when the existing heat pump equipment is installed, the base is generally required to be used for heightening installation, so that the heat pump equipment is prevented from being watered or damped, but the base is required to be constructed or manufactured, the operation is very troublesome in the installation process, the disassembly and replacement positions are also very inconvenient, and the convenience in the installation and use of the heat pump equipment is not improved.
Disclosure of Invention
In view of the above, the present invention provides a heat pump apparatus which is convenient to install and use.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a heat pump device convenient to install and use comprises a box body, a heat exchange mechanism arranged above the box body and a heat pump mechanism arranged below the box body, wherein a shielding mechanism is arranged on the outer side of the box body and comprises a lower protective frame arranged below the box body and an upper protective frame arranged above the box body; the lower support columns are uniformly arranged at least four in the circumferential direction corresponding to the box body, the upper support columns are arranged on the upper protection frame at positions corresponding to the lower support columns, and the box body is provided with a positioning assembly for fixing the upper support columns; go up the support column and correspond on the lower support column and be equipped with the go-between, correspond on the box and go up the position between support column and the lower support column and be equipped with go-between complex holding ring.
Furthermore, the heat exchange mechanism comprises a heat exchanger arranged in the box body, and a fan is arranged above the box body and corresponds to the position of the heat exchanger.
Furthermore, a V-shaped guide plate is arranged on the upper protection frame corresponding to the position of the fan.
Furthermore, arc rain baffles are arranged around the upper protection frame.
Further, the walking subassembly includes protects the walking wheel that sets up on the frame down, the walking wheel evenly sets up four at least, is equipped with the fit-up gap that is used for holding the box between the walking wheel.
Furthermore, the locating component comprises a locating screw arranged above the box body, and an assembling hole matched with the locating screw is formed in the upper supporting column.
Compared with the prior art, the invention has the following advantages:
the invention has simple structure, easy installation and use, convenient installation, good reliability and safety after transportation and installation, difficult damage, greatly reduced installation and use cost of the heat pump equipment, and is beneficial to large-scale popularization and use; through set up in the box outside and shelter from the mechanism, it can play fine protection effect to heat pump equipment to shelter from the mechanism in heat pump equipment transportation process, wherein go up the fender bracket and can play fine rainwater effect of sheltering from to the box, greatly reduced the box possibility of intaking, the reliability of this kind of heat pump equipment has been improved, and the removal base of box not only can be regarded as to lower fender bracket, and can also realize fixed the support of box, operating personnel need not to rebuild and establishes mounting platform, it can realize fixed to the installation of box to use lower fender bracket, the operation is got up simplely, the convenience of this kind of heat pump equipment installation use has been improved greatly.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the lower protective frame supporting the box body according to the inventive embodiment of the present invention.
Description of reference numerals:
1-a box body; 2-a heat exchanger; 3, replacing the fan; 4-lower protective frame; 5-a heat pump mechanism; 6-a walking component; 7-lower support columns; 8-a reinforcing plate; 9-connecting bolts; 10-assembly holes; 11-a positioning ring; 12-a connecting ring; 13-upper support columns; 14-a set screw; 15-a baffle; 16-upper protective frame; 17-rain shield.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
A heat pump device convenient to install and use is shown in figures 1 and 2 and comprises a box body 1, a heat exchange mechanism arranged above the box body 1 and a heat pump mechanism 5 arranged below the box body 1, wherein a shielding mechanism is arranged on the outer side of the box body 1 and comprises a lower protective frame 4 arranged below the box body 1 and an upper protective frame 16 arranged above the box body 1, a lower supporting column 7 is arranged on one side, facing the upper protective frame 16, of the lower protective frame 4, and a walking assembly 6 is arranged on the other side; at least four lower support columns 7 are uniformly arranged in the circumferential direction of the box body 1, upper support columns 13 are arranged on the upper protection frame 16 corresponding to the lower support columns 7, and positioning components for fixing the upper support columns 13 are arranged on the box body 1; go up support column 13 and the corresponding go up of lower support column 7 and be equipped with go up connecting ring 12, the position that corresponds between support column 13 and the lower support column 7 on the box 1 is equipped with and goes up the holding ring 11 of connecting ring 12 complex.
Specifically, it also corresponds and sets up four to go up support column 13, lower support column 7 can with lower fender bracket 4 integrated into one piece, also can welded fastening, lower support column 7 also can set up the reinforcing plate 8 that is used for strengthening the holistic structural strength of lower fender bracket 4 with lower fender bracket 4 junction, reinforcing plate 8 both ends can respectively with lower support column 7 and lower fender bracket 4 welded fastening, be favorable to the better support box 1 of lower fender bracket 4, technical personnel in the art also can adopt other modes to install fixed lower support column 7, it is the same with lower support column 7 to go up support column 13, it can with last fender bracket 16 integrated into one piece to go up support column 13, also can welded fastening, technical personnel in the art also can select from one's own.
The positioning ring 11 can be integrally formed with the box body 1 or can be fixed by welding, and a person skilled in the art can select the positioning ring from the positioning ring 12 and the positioning ring 11, the positioning ring 12 and the positioning ring 11 can be coaxially arranged, when an operator installs the upper protective frame 16 and the lower protective frame 4 on the box body 1, the connecting bolt 9 or a connecting rod can be utilized to sequentially penetrate through the positioning ring 12 and the positioning ring 11, so that the lower protective frame 4, the box body 1 and the upper protective frame 16 can be connected, the operator can also adopt other modes to realize the connection and fixation of the upper protective frame 16 and the lower protective frame 4, and the upper protective frame 16 and the lower protective frame 4 can be stably arranged on the box body 1; by arranging the upper protective frame 16 and the lower protective frame 4 on the box body 1, the box body 1 can be protected, the heat pump equipment is prevented from being damaged in the transferring or transporting process, and the convenience and the safety of the installation and the use of the heat pump equipment are greatly improved.
The heat exchange mechanism comprises a heat exchanger 2 arranged in a box body 1, and a heat exchange fan 3 is arranged above the box body 1 and corresponds to the position of the heat exchanger 2; specifically, the heat exchanger 2 and the ventilation fan 3 can both adopt equipment used in the existing heat pump, and a person skilled in the art can select the type and the installation mode of the heat exchanger 2 and the ventilation fan 3 according to needs, as long as the heat exchanger 2 and the ventilation fan 3 can work normally, and details are not repeated herein; the heat pump mechanism 5 can also adopt the heat pump mechanism 5 used on the existing heat pump equipment, such as a compressor, a valve, a pipeline and the like, a person skilled in the art can select a proper heat pump mechanism 5 according to needs, and only the heat exchange function of the existing air heat pump can be realized.
A V-shaped guide plate 15 is arranged on the upper protective frame 16 corresponding to the position of the fan 3; specifically, guide plate 15 can be fixed on last protective frame 16 through the screw mounting, the technical staff in the field also can adopt other modes to install guide plate 15, guide plate 15 can play fine guide effect to the air that trades fan 3 and blow off, the flow efficiency of improvement air current, ensure to trade fan 3 and can be better work all the time, the position that 1 side of box corresponds heat exchanger 2 can set up vent or filter screen, technical staff in the field also can select other modes of admitting air by oneself, as long as can realize 1 normal air inlet of box can.
Arc-shaped rain baffles 17 are arranged around the upper protective frame 16; it is specific, weather shield 17 can be through the screw mounting on last fender bracket 16, technical personnel in the field also can adopt other modes to install weather shield 17, curved weather shield 17 can play fine interception effect to the rainwater of side direction, and can go up fender bracket 16 with the rainwater guide discharge, avoid box 1 to be soaked by the rainwater for a long time, be favorable to improving the holistic reliability of this kind of heat pump equipment and life, curved weather shield 17 also can cooperate with guide plate 15 simultaneously, play fine guide effect to the air current that trades fan 3 and blow off, it can be smooth and easy to ensure that the air current discharges and goes up fender bracket 16.
The walking assembly 6 comprises walking wheels arranged on the lower protective frame 4, at least four walking wheels are uniformly arranged, and an assembly gap for accommodating the box body 1 is formed between the walking wheels; specifically, the walking wheels can adopt universal casters, and other walking wheels can also be adopted by the technical personnel in the field as long as the lower protective frame 4 can be conveniently moved; preferably, the position of the lower protective frame 4 corresponding to the assembly gap may be provided with a fixing screw or a mounting groove for fixing the box body 1, the box body 1 may also be provided with a mounting hole matched with the fixing screw, and a skilled person in the art may also adopt other modes to realize the connection and fixation between the box body 1 and the lower protective frame 4 as long as the stable installation and fixation of the box body 1 on the lower protective frame 4 can be ensured.
The positioning assembly comprises a positioning screw 14 arranged above the box body 1, and an assembling hole 10 matched with the positioning screw 14 is formed in the upper support column 13; specifically, the assembly holes 10 can be correspondingly arranged up and down, and the box body 1 can be provided with thread grooves or thread holes for installing the positioning screws 14, so that a person skilled in the art can select the assembly holes by himself, the upper support columns 13 can be fixed on the box body 1 through the positioning screws 14, the upper protection frame 16 can be fixed, and the rain baffle 17 and the like on the upper protection frame 16 can continuously play a good protection role for the box body 1.
The specific installation of such a heat pump apparatus is as follows:
when an operator needs to install the heat pump equipment, the connection between the upper support column and the lower support column can be firstly released, then the existing hoisting equipment and the like are utilized to hoist the box body, the lower protective frame is taken down and then turned over, the lower protective frame is re-supported by the lower support column on the lower protective frame, and the lower support column is fixed on the ground or a platform by utilizing the connecting ring mounting screw on the lower support column; later operating personnel can catch on the holding ring through hoisting equipment and hoist the box under to on the fender bracket, and fix the box installation on the fender bracket under through set screw isotructure, operating personnel can shift up the fender bracket at last, then use set screw to fix and go up the fender bracket, utilize and go up the fender bracket and shelter from the box, play certain protection and the effect of sheltering from rain to the box, upward can have great ventilation gap between fender bracket and the box top this moment, ensure to trade that the fan can be better dispels the heat to the heat exchanger.
Through utilizing the lower protective frame to support the box body, the heat pump equipment does not need to be rebuilt in the installation process to establish a mounting platform, can realize installation at any time, is very convenient to transport and install, can support the box body by using the lower protective frame, can play good supporting and stabilizing effects on the box body by using the lower protective frame, avoids the box body from being watered or damped, and is favorable for improving the reliability and the safety of the heat pump equipment after installation.
The invention has simple structure, easy installation and use, convenient installation, good reliability and safety after transportation and installation, difficult damage, greatly reduced installation and use cost of the heat pump equipment, and is beneficial to large-scale popularization and use; through set up in the box outside and shelter from the mechanism, it can play fine protection effect to heat pump equipment to shelter from the mechanism in heat pump equipment transportation process, wherein go up the fender bracket and can play fine rainwater effect of sheltering from to the box, greatly reduced the box possibility of intaking, the reliability of this kind of heat pump equipment has been improved, and the removal base of box not only can be regarded as to lower fender bracket, and can also realize fixed the support of box, operating personnel need not to rebuild and establishes mounting platform, it can realize fixed to the installation of box to use lower fender bracket, the operation is got up simplely, the convenience of this kind of heat pump equipment installation use has been improved greatly.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (6)
1. A heat pump equipment convenient to install and use, which is characterized in that: the shielding mechanism comprises a lower protective frame arranged below the box body and an upper protective frame arranged above the box body, wherein a lower supporting column is arranged on one side of the lower protective frame, which faces to the upper protective frame, and a walking assembly is arranged on the other side of the lower protective frame; the lower support columns are uniformly arranged at least four in the circumferential direction corresponding to the box body, the upper support columns are arranged on the upper protection frame at positions corresponding to the lower support columns, and the box body is provided with a positioning assembly for fixing the upper support columns; go up the support column and correspond on the lower support column and be equipped with the go-between, correspond on the box and go up the position between support column and the lower support column and be equipped with go-between complex holding ring.
2. A heat pump apparatus easy to install and use according to claim 1, wherein: the heat exchange mechanism comprises a heat exchanger arranged in the box body, and a fan is arranged above the box body and corresponds to the position of the heat exchanger.
3. A heat pump apparatus easy to install and use according to claim 2, wherein: and a V-shaped guide plate is arranged on the upper protection frame corresponding to the position of the fan.
4. A heat pump apparatus easy to install and use according to claim 1, wherein: arc rain baffles are arranged around the upper protection frame.
5. A heat pump apparatus easy to install and use according to claim 1, wherein: the walking subassembly includes the walking wheel that sets up on the lower fender bracket, the walking wheel evenly sets up four at least, is equipped with the fit-up gap that is used for holding the box between the walking wheel.
6. A heat pump apparatus easy to install and use according to claim 1, wherein: the positioning assembly comprises a positioning screw arranged above the box body, and an assembling hole matched with the positioning screw is formed in the upper supporting column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594144.6A CN112577214A (en) | 2020-12-29 | 2020-12-29 | Heat pump equipment convenient to installation and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594144.6A CN112577214A (en) | 2020-12-29 | 2020-12-29 | Heat pump equipment convenient to installation and use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112577214A true CN112577214A (en) | 2021-03-30 |
Family
ID=75143964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011594144.6A Withdrawn CN112577214A (en) | 2020-12-29 | 2020-12-29 | Heat pump equipment convenient to installation and use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112577214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380761A (en) * | 2023-03-08 | 2023-07-04 | 中国长江三峡集团有限公司 | Testing device and method for early cracking resistance of low-heat silicate cement concrete |
-
2020
- 2020-12-29 CN CN202011594144.6A patent/CN112577214A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380761A (en) * | 2023-03-08 | 2023-07-04 | 中国长江三峡集团有限公司 | Testing device and method for early cracking resistance of low-heat silicate cement concrete |
| CN116380761B (en) * | 2023-03-08 | 2024-05-24 | 中国长江三峡集团有限公司 | Testing device and method for early cracking resistance of low-heat silicate cement concrete |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112577214A (en) | Heat pump equipment convenient to installation and use | |
| CN214095006U (en) | Heat pump equipment convenient to installation and use | |
| CN207845048U (en) | A kind of A seating reach truck pump motor installing mechanism | |
| CN111911437A (en) | Novel spraying fan of portable power supply | |
| CN219592139U (en) | Portable energy-storage power supply whole machine | |
| CN208039774U (en) | A kind of dual-purpose removable scaffold of low layer | |
| CN209938775U (en) | Bearing platform reaches beacon, compressor, generator and water pump including it | |
| CN112664997A (en) | Heat pump for indoor heat supply | |
| CN214094653U (en) | Heat pump for indoor heat supply | |
| CN218826101U (en) | Solar lamp box structure | |
| CN220889662U (en) | Landscape architecture rest pavilion | |
| CN211174484U (en) | Heat exchange system and wind generating set | |
| CN211851896U (en) | Tunnel face operation trolley with dust fall effect | |
| CN213747331U (en) | Split type module frame casing of gas boiler | |
| CN214274056U (en) | A installing support for fan | |
| CN220582576U (en) | Air conditioner outdoor unit choke fan cover | |
| CN219698163U (en) | Frequency converter protection cover convenient to dismouting is maintained | |
| CN216678776U (en) | Circulating air purification system of paint spray booth | |
| CN213638663U (en) | Server rack that heat dispersion is good | |
| CN220685902U (en) | Guardrail convenient to dismouting | |
| CN219106871U (en) | Electrical engineering is electrical box for automation | |
| CN215331939U (en) | Foundation ditch protector for highway engineering | |
| CN216953612U (en) | Energy-saving environment-friendly air source heat pump | |
| CN218179139U (en) | Fresh air equipment with centrifugal fan | |
| CN217389211U (en) | Multifunctional gas alarm controller |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210330 |