CN110754845A - Fan assembly structure for electric bed - Google Patents
Fan assembly structure for electric bed Download PDFInfo
- Publication number
- CN110754845A CN110754845A CN201810842811.4A CN201810842811A CN110754845A CN 110754845 A CN110754845 A CN 110754845A CN 201810842811 A CN201810842811 A CN 201810842811A CN 110754845 A CN110754845 A CN 110754845A
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- China
- Prior art keywords
- fan
- joint
- electric bed
- ring
- mounting structure
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- 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.)
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C19/00—Bedsteads
- A47C19/22—Combinations of bedsteads with other furniture or with accessories, e.g. with bedside cabinets
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
- A47C21/04—Devices for ventilating, cooling or heating
- A47C21/042—Devices for ventilating, cooling or heating for ventilating or cooling
- A47C21/044—Devices for ventilating, cooling or heating for ventilating or cooling with active means, e.g. by using air blowers or liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fan assembly structure for an electric bed, which comprises a fan assembly, an accommodating groove and an assembly, wherein the fan assembly comprises a fan, an upper fan cover and a lower fan cover, one side of the lower fan cover is provided with an opening, a clamping ring is arranged at the opening, the fan assembly is arranged in the accommodating groove, the assembly comprises a ventilation pipe, a fan joint and a mattress joint, the fan joint and the mattress joint are respectively arranged at two ends of the ventilation pipe, the fan joint is arranged on the clamping ring through a detachable connecting piece, and the fan joint is of a convex structure. Is used in the field of electric beds. Its advantages mainly include: the fan assembly can be connected with the electric bed through the simple assembly, the air leakage degree of the fan assembly can be reduced, and the working efficiency of the electric bed is improved.
Description
Technical Field
The invention relates to the field of electric beds, in particular to a fan assembling structure for an electric bed.
Background
Along with the improvement of the living standard of people, the requirement on the electric bed is also bigger and bigger in the household of daily life, and the functional requirement on the electric bed is also bigger and bigger. And the more the function that the beddo possesses, system load is just more, beddo operation duration is one long, will produce higher temperature, maintenance and operation to the system produce adverse effect, so beddo on the existing market lacks a device that can reduce the heat that system operation in-process produced, it is urgent to wait to design out similar device and reduce the heat that the beddo operation in-process produced, improve the operation and the availability factor of beddo operation system, current heat abstractor is comparatively complicated with being connected of beddo, and can produce gas leakage in the course of the work, beddo's work efficiency is lower.
Disclosure of Invention
The present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a fan mounting structure for an electric bed. The invention can realize the purpose of providing a fan device which can be fixed on an electric bed, the whole fan device can be arranged on the electric bed through fewer parts, air leakage can not be generated in the working process, and in order to realize the purpose, the invention adopts the technical scheme that:
the utility model provides a fan assembly structure for beddo, includes fan assembly, accomodates groove and assembly subassembly, fan assembly includes that fan, fan upper shield and fan cover down, cover one side has the opening under the fan, the opening part is provided with the chucking ring, fan assembly installs accomodate the inslot, assembly subassembly includes that ventilation pipe, fan connect and mattress connect, install respectively at the both ends of ventilation pipe the fan connect with the mattress connects, the fan connects to be installed through dismantling the connecting piece on the chucking ring, the fan connects to be convex structure.
Furthermore, a bayonet is arranged on the clamping ring.
Further, the detachable connecting piece is a lantern ring.
Furthermore, a salient point is arranged on the lantern ring.
Further, an annular sealing gasket is arranged between the lantern ring and the middle end face of the fan joint.
Further, the detachable connecting piece is in threaded connection.
Further, the outer surface of the lower end annular ring of the fan joint is provided with a spiral clamping tooth.
Further, the inner surface of the clamping ring is provided with a thread-shaped clamping tooth, and the fan joint can be screwed in the clamping ring.
Further, the outer surface of the upper end annular ring of the fan joint is provided with a spiral clamping tooth.
Further, a spiral steel wire framework is arranged in the ventilation pipe.
The invention has the advantages that:
1. the invention provides a fan assembly structure for an electric bed, which comprises a fan assembly, accomodate groove and assembly subassembly, be connected through assembly subassembly between fan subassembly and the bed board, assembly subassembly includes the ventilation pipe, the fan connects and the mattress connects, the fan connects for the convex shape, the less that terminal surface of diameter has the heliciform latch, install in the ventilation pipe, heliciform steel wire framework has in the ventilation pipe, the heliciform latch that the fan connected on just in time can block into the heliciform steel wire framework in the ventilation pipe, the fan connects that terminal surface that the diameter is big to be connected through the chucking ring of dismantling connecting piece and fan lower cover, preferentially, it chooses the lantern ring for use to dismantle the connecting piece, be bayonet coupling between lantern ring and the chucking ring, set up the bayonet socket on the chucking ring, corresponding bump that sets up on the lantern ring, this structural design does benefit to the installation and the dismantlement process of simplifying the ventilation pipe.
2. According to the fan assembling structure for the electric bed, the annular sealing gasket is arranged between the fan joint and the lantern ring, so that air leakage in the working process can be effectively prevented, and the working efficiency of the whole fan system is improved.
Drawings
For a more complete understanding of the objects, features and advantages of the present invention, reference is now made to the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of the installation structure of the present invention with the vent tube removed.
Fig. 2 is a schematic view of the structure of the present invention with a vent tube installed.
FIG. 3 is a schematic view of the split structure of the present invention.
FIG. 4 is a schematic structural view of a receiving groove of the present invention.
Fig. 5 is a schematic structural view of the fan assembly of the present invention mounted on a bed plate.
The reference numerals and components referred to in the drawings are as follows:
1. the fan comprises an upper fan cover, 11 vent holes, 2 lower fan cover, 21 power line clamping grooves, 22 clamping rings, 23 openings, 220 bayonets, 3 accommodating grooves, 4 threaded holes, 5 fans, 6 filter screens, 61 clamping grooves, 7 lantern rings, 71 bumps, 8 fan connectors, 81 spiral clamping teeth and 9 ventilation pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The invention designs a fan assembly structure for an electric bed, which can realize the purpose of providing a fan device capable of being fixed on the electric bed, reduce the heat generated in the operation process of the electric bed, simplify the installation and disassembly processes of the fan device and the electric bed, avoid air leakage in the ventilation process and improve the operation and use efficiency of an electric bed operation system.
Referring to fig. 1-2, as can be seen from fig. 1, the whole fan assembling structure includes a fan assembly, a receiving groove 3 and an assembling assembly, the fan assembly includes an upper fan cover 1 and a lower fan cover 2, the sizes of the upper fan cover 1 and the lower fan cover 2 are corresponding to each other, a fan 5 is installed in the lower fan cover 2 by screws, the upper fan cover 1 is installed on the lower fan cover 2, the assembled fan assembly is installed in the receiving groove 3, the upper fan cover and the lower fan cover are both rectangular groove-shaped, screw holes are respectively provided at three corners for installing screws to fix the upper fan cover 1 and the lower fan cover 2, the bottom surface of the lower fan cover 2 is provided with a plurality of screw holes, preferably 3, so that the fan 5 can be detachably installed on the lower fan cover 2 by screws, the three corners provided by the screw holes on the upper fan cover 2 have inward rounded corners, dismantle after convenient and install the screw, fan upper shield 1 has still evenly set up a plurality of ventilation holes 11, can guarantee that the fan air-out does not have and shelters from, with the output of the maximum amount of wind, in addition, one side of fan lower shield 2 is provided with opening 23, and chucking ring 22 has been installed to opening 23 department, and chucking ring 22 is ring shape, has a department on chucking ring 22 to set up buckle connection location spare, and buckle connection location spare can guide the buckle smooth, correct, quick arrival mounted position.
Preferably, the snap connection positioning member is a bayonet 220.
The fan joint 8 is connected with the clamping ring 22 through a detachable connecting piece, preferably, the lantern ring 7 is selected for the detachable connecting piece, the fan joint 8 is sleeved in the lantern ring 7 and can rotate for 360 degrees in the lantern ring, salient points are arranged on the outer ring of the lantern ring 7, the lantern ring 7 can be screwed into the bayonet 220 of the clamping ring 22 on the lower fan cover 2, so that the lantern ring 7 is fixed in the lower fan cover 2, the fan joint 8 and the mattress joint are respectively installed at two ends of the ventilation pipe 9, the fan joint 8 is in a convex shape, the end face with the smaller diameter is installed in the ventilation pipe 9, the spiral clamping teeth 81 are arranged on the fan joint 8, a spiral steel wire framework is arranged in the ventilation pipe 9, the spiral clamping teeth 81 on the fan joint 8 can be just clamped into the spiral steel wire framework in the ventilation pipe, the installation and disassembly processes of the ventilation pipe are facilitated, and, can effectively prevent gas leakage in the course of the work, be favorable to improving whole fan system's work efficiency, in addition, because chucking ring 22 is the annular form, use bayonet 220's design, bayonet 220 is convex structure, and bayonet 220's design is more simple and easy to the installation with dismantling, save time, raise the efficiency, and when the installation, whether the operator can judge the bump of lantern ring outer lane through feeling and sound and install in place.
Preferably, the detachable connection member is a screw connection, the inner side of the clamping ring 22 is provided with a screw latch, and the outer surface of the annular ring with a larger diameter of the fan joint 8 is provided with a corresponding screw latch, so that the fan joint 8 can be directly screwed in the clamping ring 22.
Preferably, the filter screen 6 is installed at the vent hole 11 of the fan upper cover 1 by a detachable connector.
Preferably, the ventilation hole 11 department at fan upper shield 1 sets up draw-in groove 61, installation filter screen 6 in the draw-in groove, filter screen 6 passes through the mould with filter screen 6 and plastics frame integrated into one piece, is provided with the bump on filter screen 6's the frame, and cover 2 is provided with the locating hole under the fan, and when filter screen 6 card entered draw-in groove 61, the bump just in time can be fixed in the locating hole, fixes filter screen 6, adopts the design of draw-in groove 61, to filter screen 6's installation and dismantlement, has simplified the installation and has dismantled the process.
Preferably, a plurality of threaded holes are uniformly formed around the positions of the vent holes 11 of the fan upper cover 1, a plurality of threaded holes are correspondingly formed in the outer frame of the filter screen 6, and the filter screen 6 is fixed on the fan upper cover 1 through screws.
Fig. 3 is a schematic diagram of a structure of the upper fan cover 1 and the lower fan cover 2 of the present invention, wherein the lower fan cover 2 is provided with a power cord clamping groove 21, the upper fan cover 1 is provided with a cover capable of covering the power cord clamping groove 21 at the position of the power cord clamping groove 21 of the lower fan cover 2, and the power cord clamping groove 21 is provided with a plurality of half-groove clamping cords.
Preferably, the number of the half-groove clamping lines on the power line clamping groove 21 is two, and the half-groove clamping lines are used for clamping the wire rods, so that the installation stability of the wire rods is facilitated.
Fig. 4 is a schematic structural diagram of a storage groove 3, the upper fan cover 1 and the lower fan cover 2 are mounted in the storage groove 3 after being assembled, as can be seen from the figure, the upper end face and the lower end face of the storage groove 3 are respectively provided with a through hole, the assembled upper fan cover 1 and the lower fan cover 2 penetrate through the through holes of the upper end face of the storage groove 3, the lower end face of the storage groove 3 is uniformly provided with a plurality of threaded holes 4, the upper end face of the storage groove 3 is also provided with a plurality of threaded holes for fixing the assembled fan assembly, the two ends of the side face fixed with the storage groove 3 of the upper fan cover 1 and the lower fan cover 2 are provided with outward convex separation blades, threaded holes are formed in the separation blades and are used for corresponding to the threaded holes of the upper end face of the storage groove 3 and being fixed on the storage groove 3.
Fig. 5 is a schematic structural view of the whole fan assembly and the accommodating groove mounted on the bed plate, and it can be seen from the figure that the lower end face of the accommodating groove 3 is uniformly provided with a plurality of threaded holes, and then the accommodating groove 3 and the whole fan assembly are fixed on the bed plate by mounting the screw in the threaded holes.
The assembling structure of the present invention will be described below with reference to specific embodiments.
Example 1, a fan assembly includes an upper fan housing 1 and a lower fan housing 2, a fan 5 is fixed in the lower fan housing 2 by screws, the upper fan housing 1 is mounted on the lower fan housing 2 by screws, the lower fan housing 2 has a power cord clamping groove 21, the upper fan housing 1 is provided with a plurality of vent holes 11 uniformly arranged, the power cord clamping groove 21 is an unlimited groove, preferably designed as a trapezoid or rectangular groove, one side surface of the power cord clamping groove 21 has 1 half-groove clamping line for wire outgoing, the bottom surface of the power cord clamping groove 21 has a screw hole, the upper fan housing 1 is uniformly provided with a plurality of vent holes 11, a clamping groove 61 is provided in the vent hole 11 of the upper fan housing 1, a clamping groove 61 is provided in the housing, a filter screen 6 is provided on the outer frame of the filter screen 6, the lower fan housing 2 is provided with a positioning hole, the convex point can be mounted in the positioning hole to fix the filter screen 6, one side of the lower fan cover 2 is provided with an opening 23, a clamping ring 22 is arranged at the opening 23, the clamping ring 22 is in a ring shape, a bayonet 220 is arranged at one position on the clamping ring 22, a fan joint 8 is sleeved in the lantern ring 7 and can rotate for 360 degrees in the lantern ring, salient points are arranged on the outer ring of the lantern ring 7, the lantern ring 7 can be screwed into the bayonet 220 of the clamping ring 22 on the lower fan cover 2, so that the lantern ring 7 is fixed in the lower fan cover 2, the two ends of the ventilation pipe 9 are respectively provided with the fan joint 8 and a mattress joint, the fan joint 8 is in a convex shape, one end face with a smaller diameter is arranged in the ventilation pipe 9, the fan joint 8 is provided with spiral clamping teeth 81, the ventilation pipe 9 is internally provided with a spiral steel wire framework, the spiral clamping teeth 81 on the fan joint 8 can be just clamped into the spiral steel wire framework in the ventilation pipe, the other end of the ventilation pipe 9 is provided with a mattress joint which is arranged in the mattress.
Embodiment 2, a fan assembly device includes an upper fan cover 1 and a lower fan cover 2, a fan 5 is fixed in the lower fan cover 2 by screws, the upper fan cover 1 is mounted on the lower fan cover 2 by screws, a power cord clamping groove 21 is provided on the lower fan cover 2, a plurality of vent holes 11 are uniformly arranged on the upper fan cover 1, a clamping groove 61 is provided at the vent hole 11 of the upper fan cover 1, a filter screen 6 is mounted in the clamping groove 61, a salient point is provided on the outer frame of the filter screen 6, a positioning hole is provided on the lower fan cover 2, the power cord clamping groove 21 is a groove with an unlimited shape, preferably designed as a trapezoid or rectangular groove, a plurality of half-groove clamping lines are provided in the middle of the bottom surface of the power cord clamping groove 21, preferably two half-groove clamping lines are designed, the wires can be well fixed, a half-groove clamping line is also provided on one side end surface of the power cord clamping groove 21 in the wire outgoing direction, for outgoing, the fan unit who assembles installs on the bed board through accomodating groove 3, one side of cover 2 is provided with opening 23 under the fan, install chucking ring 22 on the opening 23, chucking ring 22 is the ring shape, screw thread latch has in the chucking ring 22, the great annular of fan joint 8 diameter encloses the surface and also is provided with the screw thread latch, make fan joint 8 can directly screw in chucking ring 22, fan joint 8 and mattress joint are installed respectively to the both ends of ventilation pipe 9, the mattress joint is installed in the mattress, embodiment 1 is compared to the present embodiment, reduce installation spare part, but not as embodiment 1 in reducing gas leakage effect.
The invention is described in detail below with reference to a preferred specific installation procedure:
during the installation, install fan 5 in the screw hole of cover 2 under the fan with 3 screws earlier, then arrange the fan power cord in the power cord chucking groove 21 that cover 2 corresponds under the fan, install fan upper shield 2, and cover 2 under cover 1 and the fan with 3 screw fastening fan upper shield, insert filter screen 6 in the draw-in groove 61 of fan upper shield 2, go into the bump card on the filter screen 6 in the locating hole of cover 2 under the fan, fix filter screen 6, filter screen 6 is installed under the fan in cover 2 for detachable, can regularly tear down the washing and use repeatedly. The power line clamping groove 21 is internally provided with a threaded hole, so that a screw is arranged in the threaded hole to fix the power line clamping groove 21, then the assembled fan 5, the upper fan cover 1 and the lower fan cover 2 pass through the through hole of the accommodating groove 3 and are fixed in the accommodating groove 3 by screws, the lower end of the accommodating groove 3 is provided with a plurality of threaded holes which are uniformly distributed, the accommodating groove 3 is fixed on a bed board by mounting screws in the threaded hole, one end of a ventilation pipe 9 is fixed in the mattress by a mattress joint, one side of the lower fan cover 2 is provided with an opening 23, a clamping ring 22 is arranged at the opening 23, the clamping ring 22 is in a ring shape, a bayonet 220 is arranged at one position on the clamping ring 22, the fan joint 8 is firstly sleeved in the lantern ring 7, then the lantern ring 7 is screwed into the bayonet 220 of the clamping ring 22 on the lower fan cover 2 due to the salient points arranged at the outer ring 7, so that the lantern ring 7 and the fan joint 8 are fixed, fan joint 8 is the convex shape, and the less that terminal surface of diameter is installed in ventilation pipe 9, has heliciform latch 81 on the fan joint 8, has heliciform steel wire framework in the ventilation pipe 9, and the heliciform latch 81 on the fan joint 8 just in time can block into the heliciform steel wire framework in the ventilation pipe, and consequently, fan assembly passes through the lantern ring 7, fan joint 8 and ventilation pipe 9 is connected with the mattress, and fan assembly fixes on the bed board through accomodating groove 3.
The invention provides a fan assembly structure for an electric bed, wherein a plurality of vent holes 11 which are uniformly distributed are arranged on a fan upper cover 1, the air outlet of a fan 5 can be ensured to be not blocked, the maximum air volume is output, a filter screen 6 is arranged at the vent holes 11 of the fan upper cover 1 through a detachable connecting piece, preferably, a clamping groove 61 is arranged on the fan upper cover 1, the filter screen 6 is arranged in the clamping groove 61, the filter screen 6 is used, the air permeability is good, dust can be blocked, and the filter screen 6 can be detached for repeated cleaning and use due to the arrangement of the clamping groove 61, in addition, a fan assembly is connected with a bed board through an assembly, the assembly comprises a vent pipe 9, a lantern ring 7, a fan joint 8 and a mattress joint, the fan joint 8 is in a convex shape, one end face with a smaller diameter is arranged in the vent pipe 9, the fan joint 8 is provided with spiral, the spiral latch on the fan joint 8 just in time can block the heliciform steel wire framework in the ventilation pipe into, and this structural design is favorable to simplifying the installation and the dismantlement process of ventilation pipe 9, installs annular sealing pad between fan joint 8 and the lantern ring 7, can effectively prevent gas leakage in the course of the work, is favorable to improving whole fan system's work efficiency.
It should be noted that, in this document, 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. The statement that an element defined by the phrase "comprises an element of … … does not exclude the presence of other like elements in the 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 (10)
1. A fan mounting structure for an electric bed, characterized in that: including fan unit spare, accomodate groove and assembly subassembly, fan unit spare includes cover under fan, fan upper shield and the fan, cover one side has the opening under the fan, the opening part is provided with the chucking ring, fan unit spare is installed accomodate the inslot, the assembly subassembly includes ventilation pipe, fan joint and mattress joint, the both ends of ventilation pipe are installed respectively the fan connect with the mattress connects, the fan connect to be installed through the detachable connections piece on the chucking ring, the fan connects to be convex structure.
2. The fan mounting structure for an electric bed according to claim 1, wherein: the clamping ring is provided with a bayonet.
3. The fan mounting structure for an electric bed according to claim 2, wherein: the detachable connecting piece is a lantern ring.
4. A fan mounting structure for an electric bed according to claim 3, wherein: the lantern ring is provided with salient points.
5. A fan mounting structure for an electric bed according to claim 3, wherein: and an annular sealing gasket is arranged between the lantern ring and the middle end surface of the fan joint.
6. The fan mounting structure for an electric bed according to claim 1, wherein: the detachable connecting piece is in threaded connection.
7. The fan mounting structure for an electric bed according to claim 6, wherein: the outer surface of the lower end annular ring of the fan joint is provided with a spiral clamping tooth.
8. The fan mounting structure for an electric bed according to claim 7, wherein: the inner surface of the clamping ring is provided with thread-shaped clamping teeth, and the fan joint can be screwed in the clamping ring.
9. The fan mounting structure for an electric bed according to claim 1, wherein: the outer surface of the upper end annular ring of the fan joint is provided with a spiral clamping tooth.
10. The fan mounting structure for an electric bed according to claim 9, wherein: the ventilation pipe is internally provided with a spiral steel wire framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842811.4A CN110754845A (en) | 2018-07-27 | 2018-07-27 | Fan assembly structure for electric bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842811.4A CN110754845A (en) | 2018-07-27 | 2018-07-27 | Fan assembly structure for electric bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110754845A true CN110754845A (en) | 2020-02-07 |
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ID=69327681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810842811.4A Pending CN110754845A (en) | 2018-07-27 | 2018-07-27 | Fan assembly structure for electric bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110754845A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023117469A1 (en) * | 2021-12-22 | 2023-06-29 | Mahle International Gmbh | Fan device for a chair |
-
2018
- 2018-07-27 CN CN201810842811.4A patent/CN110754845A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023117469A1 (en) * | 2021-12-22 | 2023-06-29 | Mahle International Gmbh | Fan device for a chair |
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