CN113616038A

CN113616038A - Mosquito net frame

Info

Publication number: CN113616038A
Application number: CN202111056185.4A
Authority: CN
Inventors: 龚晓胡
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2021-11-09

Abstract

The invention relates to a mosquito net frame, and belongs to the technical field of household equipment. The mosquito net frame comprises a lifting mechanism, an extension mechanism and a hanging rod; an expansion mechanism is arranged below the lifting mechanism in a hanging manner; hanging rods are connected around the expansion mechanism; the lifting mechanism comprises a fixed box, a lifting motor, a braking reducer, a lifting rotating shaft, a limiting turntable and a bearing rope; a lifting rotating shaft is arranged in the fixed box through a bearing seat; the end heads at the two ends of the lifting rotating shaft are respectively provided with a limiting turntable; the limiting turntable is provided with a bearing rope in a winding mode; one end of the bearing rope is fixedly connected with the limiting turntable. This mosquito net frame compact structure, design benefit can mechanized completion concatenation and retrieve the problem, have solved the problem that the low and intensity of labour of the low assembly efficiency that exist when current mosquito net frame manual assembly is big, are particularly suitable for the needs that the house was used.

Description

Mosquito net frame

Technical Field

The invention relates to a mosquito net frame, and belongs to the technical field of household equipment.

Background

People often arrange mosquito nets on beds in summer to prevent mosquitoes. The arrangement of the existing mosquito net is that the mosquito net is firstly spliced manually and then hung on the mosquito net frame. At present because the concatenation of mosquito net frame adopts artifical concatenation to accomplish completely, and disassemble the recovery by needs manual work mosquito net frame after the mosquito seasonality disappears, has the problem of dismantling and retrieving complicacy, can not satisfy the needs that people used daily. So it is necessary to develop a new mosquito net frame to solve the problem that the assembly efficiency is low and the labor intensity is large that the current mosquito net frame needs manual splicing and disassembly.

Disclosure of Invention

The invention aims to: the utility model provides a mosquito net frame which has compact structure and ingenious design and solves the problems of low assembly efficiency and high labor intensity existing in the prior mosquito net frame.

The technical scheme of the invention is as follows:

a mosquito net frame comprises a lifting mechanism, an extension mechanism and a hanging rod; the method is characterized in that: an expansion mechanism is arranged below the lifting mechanism in a hanging manner; hanging rods are connected around the expansion mechanism; the lifting mechanism comprises a fixed box, a lifting motor, a braking reducer, a lifting rotating shaft, a limiting turntable and a bearing rope; a lifting rotating shaft is arranged in the fixed box through a bearing seat; the end heads at the two ends of the lifting rotating shaft are respectively provided with a limiting turntable; the limiting turntable is provided with a bearing rope in a winding mode; one end of the bearing rope is fixedly connected with the limiting turntable; the other end of the bearing rope penetrates through the fixing box and then is connected with the expansion mechanism; a braking reducer is arranged in the fixed box at one side of the middle part of the lifting rotating shaft through a lifting motor; the braking speed reducer is connected with the lifting rotating shaft through a transmission pair.

The hanging rod comprises a hanging main rod and a hanging auxiliary rod; the hanging main rod is in a hollow tubular structure; mounting auxiliary rods are respectively inserted at two sides of the mounting main rod; the lower part of the hanging main rod and the lower part of the hanging auxiliary rod are both provided with a plurality of hanging holes.

The expansion mechanism comprises an assembly box and an expansion unit; four groups of expansion units are symmetrically arranged in the assembly box; the four groups of expansion units are connected with each other; one side of the expansion unit extends to the assembly box and then is connected with the hanging rod; the expansion unit comprises a winding rotating shaft, an unwinding rotating shaft, a guide pipe, a winding disc, a rack short section and an end rack; a winding rotating shaft is arranged in the assembly box through a bearing seat; winding disks are symmetrically arranged on the winding rotating shaft; a guide pipe is arranged on the assembly box on one side of the winding disc; an end rack is slidably arranged in the guide pipe; one end of the end rack extends to the assembly box and is connected with a hanging rod; the other end of the end rack is sequentially hinged with a plurality of rack short sections; one end of each rack short joint is fixedly connected with the winding disc after being wound for a plurality of circles; an unwinding rotating shaft is arranged on the assembly box below the guide pipe through a bearing block; two sets of unwinding gears are symmetrically and fixedly arranged on the unwinding rotating shaft; the unreeling gear penetrates through the corresponding guide pipe and is meshed and connected with the rack at the inner end part of the guide pipe; the ends of the rolling rotating shafts of the four groups of expansion units are mutually connected through a bevel gear pair, and the end of one rolling rotating shaft is connected with a rolling motor; the ends of the unwinding rotating shafts of the four groups of extension units are connected with each other through a bevel gear pair, and one end of the unwinding rotating shaft is connected with an unwinding motor.

The upper part and the lower part of one end of the guide pipe are respectively provided with a guide arc plate.

The expansion mechanism comprises an assembly box, an upper guide sleeve, a lower guide sleeve, a telescopic rack, an expansion motor, an upper expansion gear and a lower expansion gear; an upper expansion gear and a lower expansion gear are arranged in the middle of the assembly box in an up-and-down mode through an expansion motor; two groups of upper guide sleeves are symmetrically arranged on the assembly boxes on two sides of the upper extension gear; a telescopic rack is slidably arranged in the upper guide sleeve; the upper expansion gear extends into the upper guide sleeve and is meshed and connected with the telescopic rack; two groups of lower guide sleeves are symmetrically arranged on the assembly boxes on two sides of the lower expansion gear; the lower guide sleeve and the upper guide sleeve are arranged in a cross shape; a telescopic rack is slidably arranged in the lower guide sleeve; the lower expansion gear extends into the lower guide sleeve and is meshed with the telescopic rack; the telescopic rack extends to the outer side of the assembly box and then is connected with the hanging rod.

The extension mechanism comprises an assembly box, a telescopic scissor, a control electric cylinder and a control panel; a plurality of groups of telescopic scissors are symmetrically arranged in the assembly box; the upper hinge point at one end of the telescopic scissor is connected with the top of the assembly box; the center in the assembly box is provided with a control panel through a control electric cylinder; the control plate is hinged with a lower hinge point at one end of the telescopic scissor; the telescopic scissors extend to the outer side of the assembly box and then are connected with the hanging rod.

The expansion mechanism comprises an assembly box and an expander; the expanders are symmetrically arranged in the assembly box; the expander comprises an expansion box, an outer expansion rack, an inner expansion rack and a control gear; an expansion box is fixedly arranged in the assembly box; an external expansion rack is arranged in the expansion box in a sliding manner; a plurality of inner expansion racks are sequentially arranged in the expansion box at one side of the outer expansion rack in a sliding manner; one end of the inner expansion rack on the outermost side is fixedly connected with the expansion box; a control gear is arranged on the assembly box below one end of the inner expansion rack through a motor; the control gear extends into the expansion box and is intermittently meshed and connected with the outer expansion rack and the inner expansion rack; the outer side surface of the inner expansion rack is provided with a guide rail; the inner side surface of the inner expansion rack is provided with a guide groove; the inner expansion rack is connected with the guide groove of the adjacent inner expansion rack in a sliding way through the guide rail; the inner side surface of the external expansion rack is provided with a guide groove; the outer expansion rack is connected with the guide rail corresponding to the inner expansion rack in a sliding way through the guide groove; spring plungers are arranged at the upper and lower ends of the tail end of the guide groove; the first section of the guide rail is provided with a connecting groove; the spring plunger is connected with the corresponding joining groove in an intermittent clamping manner.

The invention has the advantages that:

this mosquito net frame compact structure, design benefit can mechanized completion concatenation and retrieve the problem, have solved the problem that the low and intensity of labour of the low assembly efficiency that exist when current mosquito net frame manual assembly is big, are particularly suitable for the needs that the house was used.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the lifting mechanism of the present invention;

FIG. 3 is a schematic view of the structure in the direction A-A in FIG. 2;

FIG. 4 is another schematic view of the structure of FIG. 2 in the direction A-A;

FIG. 5 is a schematic view of a portion of the structure of FIG. 3;

FIG. 6 is a schematic view of the expansion mechanism of the present invention;

FIG. 7 is a schematic diagram of the structure of the expansion unit in FIG. 6;

FIG. 8 is a schematic view of the structure of FIG. 7 in the direction B-B;

FIG. 9 is a schematic view of the working state structure of FIG. 8;

FIG. 10 is a schematic view of the structure of the hanging bar of the present invention;

FIG. 11 is a schematic view of the expanding mechanism of FIG. 6 according to the present invention in an operating state;

FIG. 12 is a schematic view of a modified construction of the expanding mechanism of the present invention;

FIG. 13 is a schematic view of the structure of FIG. 12 in the direction C-C;

FIG. 14 is a schematic view of the structure of FIG. 13 in the direction D-D;

FIG. 15 is a schematic view of a modified form of the expanding mechanism of the present invention;

FIG. 16 is a schematic view of the structure of FIG. 15 in the direction D-D;

FIG. 17 is a schematic view of the structure of FIG. 15 in the direction E-E;

FIG. 18 is a schematic view of a modified form of the expanding mechanism of the present invention;

FIG. 19 is a schematic view of the structure of the expander of the present invention;

FIG. 20 is a schematic view of the working state of the expander in FIG. 19;

FIG. 21 is an enlarged view of the structure of FIG. 20 at F;

FIG. 22 is a schematic view of the structure in the direction G-G in FIG. 21.

In the figure: 1. a lifting mechanism; 2. an expansion mechanism; 3. a hanging rod; 4. a fixing box; 5. a lifting rotating shaft; 6. a limiting turntable; 7. a load-bearing rope; 8. a lifting motor; 9. braking the speed reducer; 10. mounting a main rod; 11. mounting an auxiliary rod; 12. a mounting hole; 13. assembling a box; 14. an extension unit; 15. a winding rotating shaft; 16. a winding disc; 17. a guide tube; 18. an end rack; 19. a rack short section; 20. an unwinding rotating shaft; 21. an unwinding gear; 22. a winding motor; 23. an unwinding motor; 24. a guide arc plate; 25. an extension motor; 26. an upper expansion gear; 27. a lower expansion gear; 28. an upper guide sleeve; 29. a lower guide sleeve; 30. a telescopic rack; 31. a telescopic scissor; 32. controlling the electric cylinder; 33. a control panel; 34. an expander; 35. an expansion box; 36. an outwardly extending rack; 37. an inner expansion rack; 38. a guide rail; 39. a guide groove; 40. a spring plunger; 41. and controlling the gear.

Detailed Description

The mosquito net frame comprises a lifting mechanism 1, an expanding mechanism 2 and a hanging rod 3 (see the attached figure 1 in the specification). An expansion mechanism 2 (see the attached figure 1 in the specification) is arranged below the lifting mechanism 1.

The lifting mechanism 1 comprises a fixed box 4, a lifting motor 8, a braking reducer 9, a lifting rotating shaft 5, a limiting turntable 6 and a bearing rope 7 (see the attached figures 2 and 3 in the specification).

A lifting rotating shaft 5 is arranged in the fixed box 4 through a bearing seat; a braking reducer 9 is arranged in the fixed box 4 at one side of the middle part of the lifting rotating shaft 5 through a lifting motor 8; the braking speed reducer 9 is purchased equipment, and has an automatic locking function, and when the lifting motor 8 does not work, the braking speed reducer 9 is automatically locked, so that the problem that the lifting rotating shaft 5 rotates easily is solved.

The braking reducer 9 is connected with the lifting rotating shaft 5 through a transmission pair. When the lifting motor 8 works, the lifting rotating shaft 5 can be driven to rotate forwards and backwards through the braking speed reducer 9.

The end heads at the two ends of the lifting rotating shaft 5 are respectively provided with a limiting turntable 6; the limiting turntable 6 is provided with a bearing rope 7 in a winding way; one end of the bearing rope 7 is fixedly connected with the limiting turntable 6; the other end of the bearing rope 7 is connected with the expanding mechanism 2 after passing through the fixed box 4. When the during operation is rotated along with lift pivot 5 as spacing carousel 6, it will transfer or retrieve and bear rope 7 to reached and transferred or promoted the purpose of extension mechanism 2.

Scissors are symmetrically arranged between the fixed box 4 and the expansion mechanism 2 (see the attached figure 4 in the specification); the upper end of the scissor fork is movably connected with a guide rail on the fixed box 4 through a guide wheel; the lower end of the scissor fork is movably connected with a guide rail on the upper end surface of the extension mechanism 2 through a guide wheel; the purpose of the scissors is that: when the extension mechanism 2 moves up and down relative to the lifting mechanism 1, the scissor can automatically extend or contract under the extrusion or stretching action of the extension mechanism 2 and the lifting mechanism 1; the scissor fork can guide the extension mechanism 2 and the lifting mechanism 1 in the process for limiting, and the problem that the extension mechanism 2 shakes relative to the lifting mechanism 1 is avoided.

The periphery of the expansion mechanism 2 is connected with a mounting rod 3 (see the attached figure 1 of the specification). The mounting rod 3 comprises a mounting main rod 10 and a mounting auxiliary rod 11 (see the attached figure 10 in the specification); the hanging main rod 10 is of a hollow tubular structure; mounting auxiliary rods 11 are respectively inserted at two sides of the mounting main rod 10; the lower part of the mounting main rod 10 and the lower part of the mounting auxiliary rod 11 are both provided with a plurality of mounting holes 12. When the mosquito net hanging device works, the hanging auxiliary rod 11 can be manually pulled out, and then the mosquito net is hung on the hanging hole 12 through the hook.

The expansion mechanism 2 comprises a mounting box 13 and an expansion unit 14 (see the description and the attached figure 6); four groups of expansion units 14 are symmetrically arranged in the assembly box 13 (see the description and the attached figure 6). The expanding unit 14 comprises a winding rotating shaft 15, an unwinding rotating shaft 20, a guide pipe 17, a winding disc 16, a rack short section 19 and an end rack 18 (see the attached figures 7 and 8 in the specification).

A rolling rotating shaft 15 is arranged in the assembly box 13 through a bearing seat; the winding rotating shaft 15 is symmetrically provided with winding disks 16; a guide pipe 17 is arranged on the assembly box 13 at one side of the winding disc 16; an end rack 18 is slidably mounted in the guide tube 17. The end rack 18 can only slide back and forth inside it, guided by the guide tube 17.

One end of the end rack 18 extends to the assembly box 13 and is connected with the hanging rod 3; when the end rack 18 moves, the hanging rod 3 can be driven to synchronously move back and forth.

The other end of the end rack 18 is sequentially hinged with a plurality of rack short sections 19; one end of each rack short section 19 is fixedly connected with the winding disc 16 after being wound for a plurality of circles; an unreeling rotating shaft 20 is arranged on the assembly box 13 below the guide pipe 17 through a bearing block; two sets of unwinding gears 21 are symmetrically and fixedly arranged on the unwinding rotating shaft 20; the unreeling gear 21 passes through the corresponding guide tube 17 and then is engaged with the end rack 18 inside (see the description of fig. 8). When the unreeling gear 21 rotates, the end rack 18 can be driven to extend outwards; in the process that the end part rack 18 extends outwards, the rolling disc 16 can be driven to rotate by the rack nipple 19, so that the rack nipple 19 moves along with the end part rack 18; when the rack short section 19 enters the guide pipe 17 and is meshed with the unwinding gear 21, the unwinding gear 21 can drive the rack short section 19 to continue to extend (see the attached figure 9 in the specification), so that the purpose that the rack short section 19 and the end rack 18 push the loading rod 3 to move outwards can be achieved. When the winding rotating shaft 15 drives the winding disc 16 to rotate reversely, the winding disc 16 can drive the rack short section 19 to be wound on the winding disc 16 again, and therefore the purpose of recycling the rack short section 19 and enabling the end rack 18 to drive the mounting rod 3 to be recycled can be achieved.

The guide pipe 17 is provided with guide arc plates 24 at upper and lower portions of one end thereof, respectively (see fig. 9 of the specification). The purpose of the guide arc plate 24 is to: so that the rack nipple 19 can smoothly enter the guide tube 17 under the guidance of the guide arc plate 24 during operation, thereby avoiding the problem of jamming between the rack nipple 19 and the guide tube 17.

The ends of the winding rotating shafts 15 of the four groups of expansion units 14 are connected with each other through a bevel gear pair, wherein the end of one winding rotating shaft 15 is connected with a winding motor 22 (see the attached figure 6 in the specification); the ends of the unwinding rotating shafts 20 of the four groups of extension units 14 are connected with each other through a bevel gear pair, and one end of the unwinding rotating shaft 20 is connected with an unwinding motor 23 (see the attached figure 6 in the specification). When the unreeling motor 23 works, each unreeling rotating shaft 20 can be driven by a bevel gear pair to synchronously rotate in the forward direction, and when the unreeling rotating shafts 20 work, the rack short joints 19 and the end part racks 18 can be driven by the unreeling gears 21 to extend out, so that the purpose of outward spreading of the hanging rods 3 is achieved; when the winding motor 22 works, the winding motor 22 can drive the winding rotating shaft 15 to rotate reversely through the bevel gear pair, so that the purpose that the rack nipple 19 is recovered to enable the end rack 18 to drive the hanging rod 3 to recover can be achieved.

When the mosquito net rack is used for hanging a mosquito net, the lifting mechanism 1 firstly moves to enable the lower part of the extension mechanism 2 to be in a proper position, and then the unreeling rotating shaft 20 moves to enable the rack short section 19 and the end rack 18 to extend outwards to drive the hanging rod 3 to move to a proper position. Then the hanging rods 3 are manually pulled open to enable the hanging rods 3 to be mutually connected, and then the mosquito net can be manually hung on the hanging rods 3. When the mosquito net is not needed to be used, the mosquito net is manually recovered, and after the hanging rod 3 is retracted, the rolling motor 22 is operated to enable the rack short section 19 and the end rack 18 to drive the hanging rod 3 to reset. Then the lifting mechanism 1 drives the expanding mechanism 2 to reset, and the mosquito net frame can enter the next working cycle.

As a variation of the present invention, the expanding mechanism 2 includes a mounting box 13, an upper guide sleeve 28, a lower guide sleeve 29, a telescopic rack 30, an expanding motor 25, an upper expanding gear 26, and a lower expanding gear 27 (see fig. 12 and 13 of the specification).

An upper expanding gear 26 and a lower expanding gear 27 are vertically arranged in the middle of the assembly box 13 through an expanding motor 25 (see the attached figure 13 in the specification); when the expanding motor 25 is operated, the upper expanding gear 26 and the lower expanding gear 27 can be driven to synchronously rotate.

Two groups of upper guide sleeves 28 are symmetrically arranged on the assembly boxes 13 at two sides of the upper expansion gear 26; a telescopic rack 30 is arranged in the upper guide sleeve 28 in a sliding way; the upper expanding gear 26 extends into the upper guide sleeve 28 and is meshed with a telescopic rack 30 (see the description and the attached figure 12); when the upper expanding gear 26 rotates, the telescopic rack 30 can be driven to slide back and forth in the upper guide sleeve 28.

Two groups of lower guide sleeves 29 are symmetrically arranged on the assembly boxes 13 at two sides of the lower expansion gear 27; the lower guide sleeve 29 and the upper guide sleeve 28 are arranged in a crisscross manner; a telescopic rack 30 is arranged in the lower guide sleeve 29 in a sliding way; the lower expanding gear 27 extends into the lower guide sleeve 29 and is in meshing connection with a telescopic rack 30 (see the attached figures 13 and 14 in the specification). When the lower expanding gear 27 rotates, the telescopic rack 30 can be driven to slide back and forth in the lower guide sleeve 29.

The telescopic rack 30 extends to the outer side of the assembly box 13 and is connected with the hanging rod 3. When the telescopic rack 30 acts, the corresponding mounting rod 3 can be driven to act synchronously. When the telescopic rack 30 works in such a way, when the extension motor 25 acts to drive the upper extension gear 26 and the lower extension gear 27 to rotate in the forward direction, the hanging rod 3 can be driven to extend out by the telescopic rack 30; when the hanging rods 3 extend to a proper position, the extension motor 25 stops acting, then the hanging rods 3 are manually unfolded, and after the hanging rods 3 are mutually lapped, the hanging work of the mosquito net can be completed. When the mosquito net is not needed to be used, the mosquito net is manually recovered, and after the hanging rod 3 is retracted, the upper expansion gear 26 and the lower expansion gear 27 are reversely rotated, so that the telescopic rack 30 is reset.

As another variation of the present invention, the expanding mechanism 2 includes a mounting box 13, a telescopic scissor fork 31, a control cylinder 32, and a control plate 33 (see fig. 15, 16, and 17 of the specification). A plurality of groups of telescopic scissors 31 are symmetrically arranged in the assembling box 13; the upper hinge point at one end of the telescopic scissor fork 31 is connected with the top of the assembly box 13; the center inside the assembly box 13 is provided with a control panel 33 through a control electric cylinder 32; the control plate 33 is hinged with a lower hinge point at one end of the telescopic scissors 31 (see the description attached to figures 16 and 17); the telescopic scissors 31 extend to the outer side of the assembling box 13 and are connected with the hanging rod 3.

When the control cylinder 32 drives the control board 33 to move up and down, the telescopic scissors 31 can be driven to extend or retract; when the mosquito net is operated, the electric cylinder 32 is controlled to drive the hanging rod 3 to extend out or move backwards through the telescopic scissors 31 in a mode of driving the control panel 33 to move, and therefore the purpose of facilitating the installation of the mosquito net is achieved.

The re-deforming expanding mechanism 2 as the present invention includes a fitting box 13 and an expander 34; the mounting box 13 is symmetrically provided with the expander 34 (see the description and the attached figure 18).

The expander 34 includes an expansion box 35, an outer expansion rack 36, an inner expansion rack 37 and a control gear 41 (see fig. 19 and 20 of the specification). An expansion box 35 is fixedly arranged in the assembly box 13; an external expansion rack 36 is arranged in the expansion box 35 in a sliding manner; the outer end of the outer expansion rack 36 is connected with a hanging rod 3.

A plurality of inner expanding racks 37 are sequentially and slidably arranged in the expanding box 35 on one side of the outer expanding rack 36 (see the attached figures 19 and 20 in the specification); the outer and

inner expansion racks

36, 37 can only slide back and forth within the expansion box 35.

One end of the inner expansion rack 37 at the outermost side is fixedly connected with the expansion box 35; a control gear 41 is arranged on the assembly box 13 below one end of the inner expansion rack 37 through a motor; the control gear 41 extends into the expansion box 35 and is in intermittent meshed connection with the outer expansion rack 36 and the inner expansion rack 37 (see the attached figures 20 and 21 in the specification).

The outer side surface of the inner expanding rack 37 is provided with a guide rail 38; the inner side surface of the inner expanding rack 37 is provided with a guide groove 39; the inner expanding rack 37 is connected with the guide groove 39 of the adjacent inner expanding rack 37 in a sliding way through a guide rail 38; the inner side surface of the outer expanding rack 36 is provided with a guide groove 39; the outer expanding rack 36 is slidably connected with the guide rail 38 of the corresponding inner expanding rack 37 through the guide groove 39 (see the description of figures 21 and 22). The purpose of so setting is: so that the inner expansion racks 37 are slidably connected to each other and the outer expansion racks 36 and the inner expansion racks 37 by the guide rails 38 and the guide grooves 39.

Spring plungers 40 are arranged at the tail ends of the guide grooves 39 up and down; the first section of the guide rail 38 is provided with a joint groove; the spring plungers 40 are intermittently snap-fit connected to corresponding engagement slots (see fig. 21 and 22 of the specification). The purpose of so setting is: when the external expansion rack 36 is in work, the control gear 41 drives the external expansion rack 36 to move outwards, when the spring plunger 40 on the external expansion rack 36 is clamped and connected to the connecting groove on the corresponding internal expansion rack 37, the external expansion rack 36 can be fixedly connected with the corresponding internal expansion rack 37 through the spring plunger 40, and thus when the external expansion rack 36 moves outwards, the corresponding internal expansion rack 37 can be driven to move outwards together through the spring plunger 40; when the inner expanding rack 37 moves to be in contact with the control gear 41, the control gear 41 can drive the inner expanding rack 37 to continuously move outwards; when the control gear 41 continues to operate, the inner expansion racks 37 are sequentially driven to the outside of the expansion box 35 by the cooperation of the spring plunger 40, so that the inner expansion racks 37 and the outer expansion racks 36 extend outward to move the mounting rod 3 outward. After the hanging rod 3 is moved to a proper position, the hanging rod 3 can be unfolded, so that the aim of hanging the mosquito net is fulfilled. When the mosquito net is not needed, the mosquito net is recovered, the hanging rod 3 retracts, the control gear 41 is reversely rotated to enable the inner expanding racks 37 to sequentially retract inwards, when the inner expanding racks 37 are abutted against the expanding box 35 and cannot move, the spring plunger 40 is pressed to retract, the spring plunger 40 releases the fixed connection relation between the inner expanding racks 37, and therefore all the inner expanding racks 37 can be sequentially retracted, and the purpose of resetting the hanging rod 3 is achieved.

As a further improvement of the mosquito net frame, the lower end of the extension mechanism 2 can be provided with equipment such as an air conditioner, a ceiling lamp, a mosquito killer, an air conditioning fan, a projector, a television, a fan, a sound and the like, so that the mosquito net frame has other auxiliary functions.

As another improvement of the mosquito net frame, the actions of all power parts in the mosquito net frame structure can be controlled by using a remote control mode or a voice control mode.

Claims

1. A mosquito net frame comprises a lifting mechanism (1), an extension mechanism (2) and a hanging rod (3); the method is characterized in that: an expansion mechanism (2) is hung below the lifting mechanism (1); the periphery of the expanding mechanism (2) is connected with a hanging rod (3); the lifting mechanism (1) comprises a fixed box (4), a lifting motor (8), a braking reducer (9), a lifting rotating shaft (5), a limiting turntable (6) and a bearing rope (7); a lifting rotating shaft (5) is arranged in the fixed box (4) through a bearing seat; the end heads of the two ends of the lifting rotating shaft (5) are respectively provided with a limiting turntable (6); the limiting rotary table (6) is provided with a bearing rope (7) in a winding way; one end of the bearing rope (7) is fixedly connected with the limiting turntable (6); the other end of the bearing rope (7) penetrates through the fixed box (4) and then is connected with the expansion mechanism (2); a braking reducer (9) is arranged in the fixed box (4) on one side of the middle part of the lifting rotating shaft (5) through a lifting motor (8); the braking speed reducer (9) is connected with the lifting rotating shaft (5) through a transmission pair.

2. A mosquito net frame according to claim 1, wherein: the mounting rod (3) comprises a mounting main rod (10) and a mounting auxiliary rod (11); the hanging main rod (10) is of a hollow tubular structure; two sides of the hanging main rod (10) are respectively inserted with a hanging auxiliary rod (11); the lower part of the mounting main rod (10) and the lower part of the mounting auxiliary rod (11) are both provided with a plurality of mounting holes (12).

3. A mosquito net frame according to claim 1, wherein: the expanding mechanism (2) comprises an assembling box (13) and an expanding unit (14); four groups of expansion units (14) are symmetrically arranged in the assembly box (13); the four groups of expansion units (14) are mutually connected; one side of the expansion unit (14) extends to the assembly box (13) and then is connected with the hanging rod (3); the expansion unit (14) comprises a winding rotating shaft (15), an unwinding rotating shaft (20), a guide pipe (17), a winding disc (16), a rack short section (19) and an end rack (18); a winding rotating shaft (15) is arranged in the assembly box (13) through a bearing seat; winding disks (16) are symmetrically arranged on the winding rotating shaft (15); a guide pipe (17) is arranged on the assembly box (13) at one side of the winding disc (16); an end rack (18) is arranged in the guide tube (17) in a sliding way; one end of the end rack (18) extends to the assembly box (13) and is connected with a hanging rod (3); the other end of the end rack (18) is sequentially hinged with a plurality of rack short sections (19); one end of each rack short joint (19) is wound on the winding disc (16) for a plurality of circles and then is fixedly connected with the winding disc; an unreeling rotating shaft (20) is arranged on the assembly box (13) below the guide pipe (17) through a bearing seat; two sets of unwinding gears (21) are symmetrically and fixedly arranged on the unwinding rotating shaft (20); the unreeling gear (21) penetrates through the corresponding guide pipe (17) and is meshed with an end rack (18) in the unreeling gear; the ends of the rolling rotating shafts (15) of the four groups of extension units (14) are mutually connected through a bevel gear pair, and the end of one rolling rotating shaft (15) is connected with a rolling motor (22); the ends of the unreeling rotating shafts (20) of the four groups of extension units (14) are connected with each other through a bevel gear pair, and the end of one unreeling rotating shaft (20) is connected with an unreeling motor (23).

4. A mosquito net frame according to claim 3, wherein: the upper part and the lower part of one end of the guide pipe (17) are respectively provided with a guide arc plate (24).

5. A mosquito net frame according to claim 1, wherein: the expanding mechanism (2) comprises an assembling box (13), an upper guide sleeve (28), a lower guide sleeve (29), a telescopic rack (30), an expanding motor (25), an upper expanding gear (26) and a lower expanding gear (27); an upper expansion gear (26) and a lower expansion gear (27) are vertically arranged in the middle of the assembly box (13) through an expansion motor (25); two groups of upper guide sleeves (28) are symmetrically arranged on the assembly boxes (13) at two sides of the upper extension gear (26); a telescopic rack (30) is arranged in the upper guide sleeve (28) in a sliding way; the upper expanding gear (26) extends into the upper guide sleeve (28) and is meshed with the telescopic rack (30); two groups of lower guide sleeves (29) are symmetrically arranged on the assembly boxes (13) at two sides of the lower expansion gear (27); the lower guide sleeve (29) and the upper guide sleeve (28) are arranged in a cross shape; a telescopic rack (30) is arranged in the lower guide sleeve (29) in a sliding way; the lower expansion gear (27) extends into the lower guide sleeve (29) and is meshed with the telescopic rack (30); the telescopic rack (30) extends to the outer side of the assembly box (13) and then is connected with the hanging rod (3).

6. A mosquito net frame according to claim 1, wherein: the expanding mechanism (2) comprises an assembling box (13), a telescopic scissor (31), a control electric cylinder (32) and a control panel (33); a plurality of groups of telescopic scissors (31) are symmetrically arranged in the assembling box (13); an upper hinge point at one end of the telescopic scissor (31) is connected with the top of the assembly box (13); the center in the assembly box (13) is provided with a control panel (33) through a control electric cylinder (32); the control plate (33) is hinged with a lower hinge point at one end of the telescopic scissor (31); the telescopic scissors (31) extend to the outer side of the assembly box (13) and then are connected with the hanging rod (3).

7. A mosquito net frame according to claim 1, wherein: the expanding mechanism (2) comprises an assembling box (13) and an expander (34); the inside of the assembly box (13) is symmetrically provided with expanders (34); the expander (34) comprises an expansion box (35), an outer expansion rack (36), an inner expansion rack (37) and a control gear (41); an expansion box (35) is fixedly arranged in the assembly box (13); an external expansion rack (36) is arranged in the expansion box (35) in a sliding way; a plurality of inner expanding racks (37) are sequentially arranged in an expanding box (35) at one side of the outer expanding rack (36) in a sliding manner; one end of the inner expansion rack (37) at the outermost side is fixedly connected with the expansion box (35); a control gear (41) is arranged on the assembly box (13) below one end of the inner expansion rack (37) through a motor; the control gear (41) extends into the expansion box (35) and is in intermittent meshing connection with the outer expansion rack (36) and the inner expansion rack (37); a guide rail (38) is arranged on the outer side surface of the inner expanding rack (37); a guide groove (39) is arranged on the inner side surface of the inner expanding rack (37); the inner expanding rack (37) is connected with the guide groove (39) of the adjacent inner expanding rack (37) in a sliding way through a guide rail (38); the inner side surface of the outer expanding rack (36) is provided with a guide groove (39); the outer expanding rack (36) is in sliding connection with a guide rail (38) corresponding to the inner expanding rack (37) through a guide groove (39); spring plungers (40) are arranged at the tail ends of the guide grooves (39) up and down; the first section of the guide rail (38) is provided with a joint groove; the spring plunger (40) is in intermittent clamping connection with the corresponding joining groove.