CN113521895A - Mining truck air conditioner filter with protection processing function - Google Patents

Mining truck air conditioner filter with protection processing function Download PDF

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Publication number
CN113521895A
CN113521895A CN202110931668.8A CN202110931668A CN113521895A CN 113521895 A CN113521895 A CN 113521895A CN 202110931668 A CN202110931668 A CN 202110931668A CN 113521895 A CN113521895 A CN 113521895A
Authority
CN
China
Prior art keywords
fixedly connected
air conditioner
rod
bearing
mining truck
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
Application number
CN202110931668.8A
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Chinese (zh)
Inventor
王锡山
杨兵安
刘娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Xindong Air Conditioning Equipment Engineering Co ltd
Original Assignee
Wuhan Xindong Air Conditioning Equipment Engineering Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan Xindong Air Conditioning Equipment Engineering Co ltd filed Critical Wuhan Xindong Air Conditioning Equipment Engineering Co ltd
Priority to CN202110931668.8A priority Critical patent/CN113521895A/en
Publication of CN113521895A publication Critical patent/CN113521895A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00Other air-treating devices
    • B60H3/06Filtering

Abstract

The invention relates to the technical field of vehicle-mounted air conditioners and discloses a mining truck air conditioner filter with a protection processing function, which comprises a filter body, wherein the top of the filter body is fixedly connected with a containing pipe, the right side wall of the inner cavity of the containing pipe is fixedly connected with a first bearing, the left side of the first bearing is fixedly connected with a threaded rod, the outer side of the threaded rod is fixedly connected with a first umbrella wheel, the inner top wall of the containing pipe is fixedly connected with a second bearing, the bottom of the second bearing is fixedly connected with a hand rotating rod, one end of the hand rotating rod sequentially penetrates through the second bearing and the containing pipe and extends to the top of the containing pipe, the outer side of the hand rotating rod is movably connected with the second bearing, and the bottom of the hand rotating rod is fixedly connected with a second umbrella wheel. This mining truck air conditioner filter with protection processing function has wholly reached and has possessed the purpose that can carry out effectual protection processing function, has strengthened mining truck air conditioner filter's life greatly.

Description

Mining truck air conditioner filter with protection processing function
Technical Field
The invention relates to the technical field of vehicle-mounted air conditioners, in particular to a mining truck air conditioner filter with a protection processing function.
Background
The vehicle-mounted air conditioner is an air conditioning system which is composed of a compressor, a condenser, a throttling element, an evaporator, a fan and necessary control components and is used for adjusting the temperature and the humidity in the vehicle and providing comfortable environment for passengers.
The vehicle-mounted air conditioner can be additionally arranged on different vehicle types, such as a mining truck used in a mine, a filter in the air conditioner of the mining truck is a component for preventing harmful substances from entering an air conditioning system to damage the air conditioning system, providing good air environment for passengers in the vehicle and protecting the health of the passengers in the vehicle, the air conditioner filter of the mining truck on the existing market has the purpose of being incapable of carrying out effective protection treatment function, and the traditional air conditioner filter of the mining truck generally runs in a hot mine and needs to be started for a long time every day, during the operation for such a long time, the air outlet of the air conditioner filter can be hit by external hard objects at any time, the filter is seriously damaged, the service life of the air conditioner filter of the mining truck is greatly reduced, and therefore the air conditioner filter of the mining truck with the protection treatment function is provided to solve the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the mining truck air conditioner filter with the protection processing function, which has the advantages of effective protection processing function and the like, and solves the problem that the traditional mining truck air conditioner filter cannot perform the effective protection processing function.
(II) technical scheme
In order to achieve the purpose of carrying out effective protection processing function, the invention provides the following technical scheme: a mining truck air conditioner filter with a protection processing function comprises a filter body, wherein a containing pipe is fixedly connected to the top of the filter body, a first bearing is fixedly connected to the right side wall of an inner cavity of the containing pipe, a threaded rod is fixedly connected to the left side of the first bearing, a first umbrella wheel is fixedly connected to the outer side of the threaded rod, a second bearing is fixedly connected to the inner top wall of the containing pipe, one end of the bottom of the second bearing is fixedly connected with a hand rotating rod which sequentially penetrates through the second bearing and the containing pipe and extends to the top of the containing pipe, the outer side of the hand rotating rod is movably connected with the second bearing, a second umbrella wheel is fixedly connected to the bottom of the hand rotating rod, the bottom of the second umbrella wheel is meshed with the first umbrella wheel, a threaded block is connected to the outer side of the threaded rod in a threaded manner, the bottom of the threaded block is slidably connected with the containing pipe, and a moving frame with one end of the top of the threaded block penetrates through and extends to the outside of the containing pipe, the bottom of the moving frame is fixedly connected with an installation block, the front of the installation block is fixedly connected with a connecting frame, the left side of the connecting frame is fixedly connected with a movable rod, the bottom of the movable rod is fixedly connected with a reinforcing member, the bottom of the reinforcing member is fixedly connected with a laminating ventilating baffle, the top of the laminating ventilating baffle is fixedly connected with the connecting frame, the left side and the right side of the front of the laminating ventilating baffle are fixedly connected with connecting sheets, the front of the connecting sheets is fixedly connected with a telescopic rod, the front of the telescopic rod is fixedly connected with a connecting block, a protective ventilating baffle is fixedly connected between the opposite sides of the connecting block, the back of the connecting block is fixedly connected with a side connecting plate, the back of the side connecting plate is fixedly connected with a spring, the back of the spring is fixedly connected with the laminating ventilating baffle, the front of the connecting sheet is fixedly connected with a vertical frame, the connecting piece is characterized in that the friction wheel is fixedly connected to one side of the hanging frame opposite to the other side, the side of the friction wheel opposite to the other side is movably connected with the side connecting plate, the inclined frame is fixedly connected to the front side of the connecting piece, the friction pad is fixedly connected to one side of the inclined frame opposite to the other side of the inclined frame, the back side of the connecting block is fixedly connected with the connecting piece, and the side of the friction pad opposite to the friction pad is movably connected with the connecting piece.
Preferably, the telescopic rod is a combined structure body and consists of an outer sleeve rod and an inner telescopic rod, and the inner part of the outer sleeve rod is movably connected with the inner telescopic rod, one end of the inner telescopic rod penetrates through the inner telescopic rod and extends to the outer part of the outer sleeve rod.
Preferably, the friction wheel is a cowhells friction wheel, and the friction pad is a rubber friction pad.
Preferably, the top fixedly connected with hand of hand-rotating lever turns to the grab handle, the outside fixedly connected with spacing lantern ring of threaded rod.
Preferably, the inner side wall of the thread block is provided with a thread groove, and the thread groove is matched with a thread strip on the outer side of the threaded rod.
Preferably, the top of holding the pipe has seted up passageway bar hole, passageway bar hole and removal frame looks adaptation.
Preferably, the inner bottom wall of the accommodating pipe is provided with a limiting sliding groove, the bottom of the thread block is fixedly connected with a limiting sliding block, and the limiting sliding block is matched with the limiting sliding groove.
Preferably, the front surfaces of the laminating ventilation baffle and the protective ventilation baffle are provided with a plurality of strip-shaped air outlets.
(III) advantageous effects
Compared with the prior art, the invention provides the air conditioner filter of the mining truck with the protection treatment function, which has the following beneficial effects:
1. this mining truck air conditioner filter with protection processing function, when the air conditioner prepares to move, the accessible user rotates the hand bull stick clockwise and drives second bevel wheel clockwise, second bevel wheel and first bevel wheel meshing this moment, drive first bevel wheel and threaded rod clockwise, the screw thread strip in the threaded rod outside and the thread groove screw thread contact that the screw thread piece inside wall was seted up this moment, position through setting up the spacing slider limited screw thread piece, drive the screw thread piece right displacement, thereby drive and remove the frame, the reinforcement, laminating ventilative baffle and protection ventilative baffle wait to move in left structure right, when laminating ventilative baffle and protection ventilative baffle remove to the dead ahead of filter body, can carry out effectual protection to the filter body, and when needing to wash or change the filter screen in the filter body, the staff drives laminating ventilative baffle and the aforesaid transmission that flows reverse under a series of transmission effect opposite with the aforesaid, the staff rotates the hand bull stick anticlockwise and drives laminating ventilative baffle and the transmission of flow with above-mentioned procedure Protection ventilative baffle isotructure displacement left, until it no longer shelters from filter body, can be quick wash or change filter body's filter screen.
2. This mining truck air conditioner filter with protection processing function, through setting up the connection stability between telescopic link reinforcing laminating ventilative baffle and the connecting block, when the protection ventilative baffle receives to strike to carry out short distance removal after, through setting up friction pulley, friction pad and spring for the protection ventilative baffle receives to strike and can obtain buffering by a wide margin, very big reinforcing the protective effect of protection ventilative baffle.
Drawings
FIG. 1 is a schematic structural diagram of an air conditioner filter with a protection treatment function for a mining truck, which is provided by the invention;
FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;
fig. 3 is a top view of a part of a connecting structure of a ventilation baffle 15 and a connecting sheet attached to the mining truck air conditioner filter with a protection treatment function.
In the figure: the device comprises a filter body 1, a containing pipe 2, a first bearing 3, a threaded rod 4, a first umbrella wheel 5, a second bearing 6, a hand rotating rod 7, a second umbrella wheel 8, a threaded block 9, a movable frame 10, an installation block 11, a connection frame 12, a movable rod 13, a reinforcing member 14, a ventilation baffle 15, a connecting sheet 16, a telescopic rod 17, a connection block 18, a protection ventilation baffle 19, a side connection plate 20, a spring 21, a vertical frame 22, a friction wheel 23, a bevel frame 24 and a friction pad 25.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-3, a mining truck air conditioner filter with protection processing function comprises a filter body 1, a containing tube 2 is fixedly connected to the top of the filter body 1, a limiting chute is formed in the inner bottom wall of the containing tube 2, a limiting slider is fixedly connected to the bottom of a thread block 9, the limiting slider is matched with the limiting chute, a channel strip-shaped hole is formed in the top of the containing tube 2, the channel strip-shaped hole is matched with a moving frame 10, a first bearing 3 is fixedly connected to the right side wall of the inner cavity of the containing tube 2, a threaded rod 4 is fixedly connected to the left side of the first bearing 3, a first umbrella wheel 5 is fixedly connected to the outer side of the threaded rod 4, a second bearing 6 is fixedly connected to the inner top wall of the containing tube 2, one end of the bottom of the second bearing 6 sequentially penetrates through the second bearing 6 and the containing tube 2 and extends to a hand-turning rod 7 at the top of the containing tube 2, when the air conditioner is ready to operate, accessible user clockwise rotation hand bull stick 7 drives second umbrella wheel 8 clockwise rotation, second umbrella wheel 8 meshes with first umbrella wheel 5 this moment, drive first umbrella wheel 5 and threaded rod 4 clockwise rotation, the screw thread strip in the threaded rod 4 outside and the thread groove screw thread contact that the inside wall of thread piece 9 was seted up this moment, position through setting up spacing slider limited thread piece 9, drive thread piece 9 right displacement, thereby drive and remove frame 10, reinforcement 14, laminating ventilative baffle 15 and protection ventilative baffle 19 etc. and move in left structure right side, when laminating ventilative baffle 15 and protection ventilative baffle 19 remove to the dead ahead of filter body 1, can carry out effectual protection to filter body 1, and when needing to wash or change the filter screen in filter body 1, the staff anticlockwise rotates hand bull stick 7 and drives laminating ventilative baffle 15 and protection ventilative baffle 19 etc. structure under a series of transmission opposite with above-mentioned flow Leftwards moving until the filter body 1 is not shielded any more, the filter screen of the filter body 1 can be cleaned or replaced quickly, the top of a hand rotating rod 7 is fixedly connected with a hand rotating grab handle, the outer side of a threaded rod 4 is fixedly connected with a limiting lantern ring, the outer side of the hand rotating rod 7 is movably connected with a second bearing 6, the bottom of the hand rotating rod 7 is fixedly connected with a second umbrella wheel 8, the bottom of the second umbrella wheel 8 is meshed with a first umbrella wheel 5, the outer side of the threaded rod 4 is in threaded connection with a threaded block 9, the inner side wall of the threaded block 9 is provided with a threaded groove, the threaded groove is matched with a threaded strip on the outer side of the threaded rod 4, the bottom of the threaded block 9 is in sliding connection with a containing pipe 2, the top of the threaded block 9 is fixedly connected with a moving frame 10, one end of the moving frame 10 penetrates through and extends to the outside of the containing pipe 2, the bottom of the moving frame 10 is fixedly connected with a mounting block 11, the front of the mounting block 11 is fixedly connected with a connecting frame 12, the left side of the connecting frame 12 is fixedly connected with a movable rod 13, the bottom of the movable rod 13 is fixedly connected with a reinforcing member 14, the bottom of the reinforcing member 14 is fixedly connected with a laminating ventilation baffle 15, the front surfaces of the laminating ventilation baffle 15 and the protective ventilation baffle 19 are respectively provided with a plurality of strip-shaped air outlets, the top of the laminating ventilation baffle 15 is fixedly connected with the connecting frame 12, the left side and the right side of the front surface of the laminating ventilation baffle 15 are respectively and fixedly connected with a connecting piece 16, the front surface of the connecting piece 16 is fixedly connected with a telescopic rod 17, the connecting stability between the laminating ventilation baffle 15 and the connecting block 18 is enhanced by arranging the telescopic rod 17, when the protective ventilation baffle 19 moves for a short distance after being impacted, the protective ventilation baffle 19 is greatly buffered by arranging a friction wheel 23, a friction pad 25 and a spring 21, and the protective effect of the protective ventilation baffle 19 is greatly enhanced, the telescopic rod 17 is a combined structure body and consists of an outer sleeve rod and an inner telescopic rod, the inner part of the outer sleeve rod is movably connected with the inner telescopic rod, one end of the inner telescopic rod penetrates through and extends to the outer part of the outer sleeve rod, the front surface of the telescopic rod 17 is fixedly connected with a connecting block 18, a protective ventilation baffle 19 is fixedly connected between the opposite sides of the connecting block 18, the back surface of the connecting block 18 is fixedly connected with a side connecting plate 20, the back surface of the side connecting plate 20 is fixedly connected with a spring 21, the back surface of the spring 21 is fixedly connected with a laminating ventilation baffle 15, the front surface of the connecting plate 16 is fixedly connected with a hanging frame 22, one side of the hanging frame 22 opposite to the hanging frame is fixedly connected with a friction wheel 23, the friction wheel 23 is a cowhell friction wheel, a friction pad 25 is a rubber friction pad, one side of the friction wheel 23 opposite to the side is movably connected with the side connecting plate 20, the front surface of the connecting plate 16 is fixedly connected with an inclined frame 24, one side of the inclined frame 24 is fixedly connected with a friction pad 25, the back of the connecting block 18 is fixedly connected with a connecting block 26, and the opposite sides of the friction pads 25 are movably connected with the connecting block 26.
In summary, when the air conditioner is ready to operate, the hand rotating rod 7 can be rotated clockwise by a user to drive the second umbrella wheel 8 to rotate clockwise, at the same time, the second umbrella wheel 8 is meshed with the first umbrella wheel 5 to drive the first umbrella wheel 5 and the threaded rod 4 to rotate clockwise, at the same time, the threaded strip on the outer side of the threaded rod 4 is in threaded contact with the threaded groove formed in the inner side wall of the threaded block 9, the position of the threaded block 9 is limited by arranging the limiting slide block, the threaded block 9 is driven to move rightwards, so that the structures on the left sides, such as the movable frame 10, the reinforcing member 14, the laminating ventilation baffle 15 and the protecting ventilation baffle 19, are driven to move rightwards, when the laminating ventilation baffle 15 and the protecting ventilation baffle 19 move to the right front of the filter body 1, the filter body 1 can be effectively protected, and when a filter screen in the filter body 1 needs to be cleaned or replaced, the staff rotates hand bull stick 7 anticlockwise and drives laminating ventilative baffle 15 and protection ventilative baffle 19 isotructure displacement left under a series of transmission effect opposite with above-mentioned flow, until it no longer shelters from filter body 1, can be quick wash or change filter body 1's filter screen.
And, through setting up the connection stability between telescopic link 17 reinforcing laminating ventilative baffle 15 and the connecting block 18, when protection ventilative baffle 19 receives to strike to carry out short distance removal after, through setting up friction pulley 23, friction pad 25 and spring 21 for protection ventilative baffle 19 receives to strike and can obtain buffering by a wide margin, very big reinforcing protection effect of protection ventilative baffle 19.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a mining truck air conditioner filter with protection processing function, includes filter body (1), its characterized in that: the top of the filter body (1) is fixedly connected with an accommodating tube (2), the right side wall of the inner cavity of the accommodating tube (2) is fixedly connected with a first bearing (3), the left side of the first bearing (3) is fixedly connected with a threaded rod (4), the outer side of the threaded rod (4) is fixedly connected with a first umbrella wheel (5), the inner top wall of the accommodating tube (2) is fixedly connected with a second bearing (6), one end of the bottom of the second bearing (6) is fixedly connected with a hand rotating rod (7) which sequentially penetrates through the second bearing (6) and the accommodating tube (2) and extends to the top of the accommodating tube (2), the outer side of the hand rotating rod (7) is movably connected with the second bearing (6), the bottom of the hand rotating rod (7) is fixedly connected with a second umbrella wheel (8), the bottom of the second umbrella wheel (8) is meshed with the first umbrella wheel (5), the outer side of the threaded rod (4) is connected with a threaded block (9), the bottom of the thread block (9) is in sliding connection with the accommodating pipe (2), one end of the top of the thread block (9) is fixedly connected with a moving frame (10) which penetrates through and extends to the outside of the accommodating pipe (2), the bottom of the moving frame (10) is fixedly connected with a mounting block (11), the front of the mounting block (11) is fixedly connected with a connecting frame (12), the left side of the connecting frame (12) is fixedly connected with a movable rod (13), the bottom of the movable rod (13) is fixedly connected with a reinforcing member (14), the bottom of the reinforcing member (14) is fixedly connected with a laminating ventilation baffle plate (15), the top of the laminating ventilation baffle plate (15) is fixedly connected with the connecting frame (12), the left side and the right side of the laminating ventilation baffle plate (15) are fixedly connected with a reinforcing member (16), and the front of the connecting plate (16) is fixedly connected with a telescopic rod (17), the front of the telescopic rod (17) is fixedly connected with a connecting block (18), a protective ventilating baffle (19) is fixedly connected between the opposite sides of the connecting block (18), the back of the connecting block (18) is fixedly connected with a side connecting plate (20), the back of the side connecting plate (20) is fixedly connected with a spring (21), the back of the spring (21) is fixedly connected with a laminating ventilating baffle (15), the front of the connecting plate (16) is fixedly connected with a vertical frame (22), one side of the vertical frame (22) opposite to the back is fixedly connected with a friction wheel (23), one side of the friction wheel (23) opposite to the back is movably connected with the side connecting plate (20), the front of the connecting plate (16) is fixedly connected with an inclined frame (24), one side of the inclined frame (24) opposite to the friction pad (25) is fixedly connected with the friction pad, and the back of the connecting block (18) is fixedly connected with a friction pad (26), the opposite sides of the friction pads (25) are movably connected with the friction pads (26).
2. The mining truck air conditioner filter with protection treatment according to claim 1, characterized in that: the telescopic rod (17) is a combined structure body and consists of an outer sleeve rod and an inner telescopic rod, and one end of the inner telescopic rod penetrates through the outer sleeve rod and extends to the outside of the outer sleeve rod.
3. The mining truck air conditioner filter with protection treatment according to claim 1, characterized in that: the friction wheel (23) is a cowhells friction wheel, and the friction pad (25) is a rubber friction pad.
4. The mining truck air conditioner filter with protection treatment according to claim 1, characterized in that: the top fixedly connected with hand of hand bull stick (7) changes the grab handle, the outside fixedly connected with spacing lantern ring of threaded rod (4).
5. The mining truck air conditioner filter with protection treatment according to claim 1, characterized in that: the inner side wall of the thread block (9) is provided with a thread groove, and the thread groove is matched with a thread strip on the outer side of the threaded rod (4).
6. The mining truck air conditioner filter with protection treatment according to claim 1, characterized in that: the top of the accommodating pipe (2) is provided with a channel strip-shaped hole, and the channel strip-shaped hole is matched with the moving frame (10).
7. The mining truck air conditioner filter with protection treatment according to claim 1, characterized in that: the inner bottom wall of the accommodating pipe (2) is provided with a limiting sliding groove, the bottom of the thread block (9) is fixedly connected with a limiting sliding block, and the limiting sliding block is matched with the limiting sliding groove.
8. The mining truck air conditioner filter with protection treatment according to claim 1, characterized in that: the front surfaces of the attached ventilating baffle (15) and the protective ventilating baffle (19) are provided with a plurality of strip-shaped air outlets.
CN202110931668.8A 2021-08-13 2021-08-13 Mining truck air conditioner filter with protection processing function Pending CN113521895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110931668.8A CN113521895A (en) 2021-08-13 2021-08-13 Mining truck air conditioner filter with protection processing function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110931668.8A CN113521895A (en) 2021-08-13 2021-08-13 Mining truck air conditioner filter with protection processing function

Publications (1)

Publication Number Publication Date
CN113521895A true CN113521895A (en) 2021-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110931668.8A Pending CN113521895A (en) 2021-08-13 2021-08-13 Mining truck air conditioner filter with protection processing function

Country Status (1)

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CN (1) CN113521895A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211106848U (en) * 2019-11-20 2020-07-28 重庆东电制冷设备有限公司 Filtering device for air inlet of automobile air conditioner
CN212781835U (en) * 2020-08-19 2021-03-23 中山市超达网络科技有限公司 Background management host based on locking technology
CN213885427U (en) * 2020-11-09 2021-08-06 山东辉日建设工程有限公司 Central air conditioning system pipeline filter equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211106848U (en) * 2019-11-20 2020-07-28 重庆东电制冷设备有限公司 Filtering device for air inlet of automobile air conditioner
CN212781835U (en) * 2020-08-19 2021-03-23 中山市超达网络科技有限公司 Background management host based on locking technology
CN213885427U (en) * 2020-11-09 2021-08-06 山东辉日建设工程有限公司 Central air conditioning system pipeline filter equipment

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Application publication date: 20211022

RJ01 Rejection of invention patent application after publication