Lifting structure of mosquito net bracket

Abstract

The utility model relates to a lifting structure of a mosquito net bracket. The lifting structure comprises a lifting supporting structure, a linkage assembly and a manual driving assembly, each lifting supporting structure comprises a lower supporting frame assembly, a lifting frame, a base, a lifting assembly and a conduction assembly. The lower end of the lifting frame is inserted into the upper end of the lower supporting frame assembly and can move up and down, the lower end of the lower supporting frame assembly is installed on the base, the lifting assembly is located in the lower supporting frame assembly, the output end of the lifting assembly is connected with the lifting frame, the conduction assembly is installed in the base, and one end of the conduction assembly is connected with the input end of the lifting assembly. The linkage assembly is connected with the other end of the conduction assembly; the manual driving assembly is located in the lower supporting frame assembly, the input end of the manual driving assembly is exposed and communicated with the outside, and the output end of the manual driving assembly is connected with the third end of the conduction assembly or the linkage assembly. The lifting mosquito net support has the advantages of being capable of manually or automatically lifting the mosquito net support, compact and simple in structure and convenient to replace when the mosquito net gauze is replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mosquito net support's lifting structure. BACKGROUND

[0002] At present, the lifting function of the existing mosquito net support on the market needs two people to directly force at the same time to support the weight of the whole mosquito net and support, thereby realizing the lifting of the mosquito net frame to change the mosquito net, which is time-consuming, laborious, inconvenient to change and unsafe. SUMMARY

[0003] The utility model discloses a mosquito net support's lifting structure that overcomes the defects of the prior art has labor-saving lifting structure and motor drive lifting structure, can make the user more labor-saving and more convenient to lift the mosquito net frame under the condition of single operation, realizes the electric intelligent lifting of the mosquito net frame, and also can manually lift the mosquito net support, compact structure is simple, and when replacing the mosquito net yarn, it is convenient to replace.

[0004] In order to achieve the above object, the first technical scheme of the utility model is realized, which is a lifting structure of a mosquito net support, characterized by comprising:

[0005] Two lifting support structures, the two lifting support structures are distributed left and right, and each of the two lifting support structures comprises a lower support frame assembly, a lifting frame, a base, a lifting assembly and a transmission assembly; the lower end of the lifting frame is inserted into the upper end of the lower support frame assembly and can move up and down, the lower end of the lower support frame assembly is installed on the base, the lifting assembly is located in the lower support frame assembly, the output end of the lifting assembly is connected with the lifting frame to drive the lifting frame to move up and down, the transmission assembly is installed in the base, and one end of the transmission assembly is connected with the input end of the lifting assembly;

[0006] A linkage assembly, two ends of the linkage assembly are connected with the other end of the two transmission assemblies to link the two lifting structures, and

[0007] A manual drive assembly, the manual drive assembly is located in the lower support frame assembly, the input end of the manual drive assembly is exposed and communicated with the outside world, and the output end of the manual drive assembly is connected with the third end of a transmission assembly or the linkage assembly to drive the two lifting frames to lift.

[0008] This technical solution also includes a manual rotating shaft. The manual drive assembly includes an upper mounting base, a first manual gear, a second manual gear, and a first rotating shaft. The transmission assembly includes a transmission rotating shaft, a first transmission gear, and a second transmission gear. The upper end of the lower support frame assembly is mounted on the upper mounting base. The first manual gear is rotatably mounted in the upper mounting base. One end of the manual rotating shaft is inserted into the first manual gear. The second manual gear is mounted on the upper end of the first rotating shaft and meshes with the first manual gear. The upper part of the first rotating shaft is rotatably mounted on the upper mounting base. The lower part of the first rotating shaft is rotatably mounted on the base, and the transmission rotating shaft is coaxial with the lower part of the first rotating shaft. The first transmission gear is mounted on the transmission rotating shaft. The second transmission gear is rotatably mounted in the base, and the second transmission gear meshes with the first transmission gear and the input end of the lifting assembly, respectively.

[0009] In this technical solution, the lifting assembly includes a lead screw, a lifting seat, and a lifting gear; the lifting seat is installed at the lower part of the lifting frame, and an internal thread is provided in the lifting seat; the upper part of the lead screw meshes with the internal thread of the lifting seat, and the lower end of the lead screw is rotatably mounted on the base; the lifting gear is installed at the lower part of the lead screw and meshes with the second transmission gear.

[0010] In this technical solution, the linkage component includes a linkage shaft, two first linkage gears and a second linkage gear. The two ends of the linkage shaft are rotatably mounted on corresponding bases. The first linkage gears are respectively mounted on the two ends of the linkage shaft. The second linkage gear is mounted on the lower end of the transmission shaft and meshes with the first linkage gears.

[0011] In this technical solution, the lower support frame assembly includes a first bracket and a second bracket, which are distributed adjacent to each other on the left and right. The lower ends of the first bracket and the second bracket are both mounted on the base, and the upper ends of the first bracket and the second bracket are both mounted on the upper mounting seat. The lower end of the lifting frame is inserted into the upper end of the second bracket and can move up and down. The manual drive component is located in the first bracket, and the lifting component is located in the second bracket.

[0012] To achieve the above objectives, the second technical solution of this utility model is as follows: it is a lifting structure for a mosquito net support, characterized by comprising:

[0013] Two lifting support structures are provided; the two lifting support structures are distributed on the left and right sides. Each lifting support structure includes a lower support frame assembly, a lifting frame 2, a base 9, a lifting component, and a transmission component. The lower end of the lifting frame 2 is inserted into the upper end of the lower support frame assembly and can move up and down. The lower end of the lower support frame assembly is installed on the base 9. The lifting component is located in the lower support frame assembly. The output end of the lifting component is connected to the lifting frame 2 to drive the lifting frame 2 to move up and down. The transmission component is installed in the base 9. One output end of the transmission component is connected to the input end of the lifting component.

[0014] Linkage component; the two ends of the linkage component are connected to one end of the two transmission components to enable the two lifting structures to move in tandem; and

[0015] An electric drive assembly; the electric drive assembly is mounted on a base 9, and the output end of the electric drive assembly is connected to a linkage assembly or the other end of a transmission assembly, thereby enabling the electric drive assembly to drive the two lifting frames 2 to rise and fall.

[0016] In this technical solution, the electric drive assembly includes a motor, a knob, a protrusion, an elastic element, a motor mounting base, a movable frame, a first fastener, a second fastener, a motor drive shaft, and an electric gear. The motor mounting base is mounted on a base, and the motor is mounted on the motor mounting base. The second fastener is mounted on the output shaft of the motor and located within the motor mounting base. The movable frame is mounted in the motor mounting base, moving left and right. The elastic element is located between one side of the movable frame and the motor mounting base. The protrusion is rotatably mounted in the motor mounting base and located between the other side of the movable frame and the motor mounting base, thereby cooperating with the protrusion and the elastic element to control the movement of the movable frame. The motor drive shaft is rotatably mounted on the movable frame, and the first fastener is mounted at one end of the motor drive shaft. When the movable frame moves towards the motor, the first fastener engages with the second fastener. When the movable frame moves away from the motor under the action of the protrusion, the first fastener disengages from the second fastener. The electric gear is mounted at the other end of the motor drive shaft and connected to a linkage assembly, thereby driving the lifting frame to rise and fall.

[0017] In this technical solution, the transmission component includes a transmission shaft, a first transmission gear, and a second transmission gear; the linkage component includes a linkage shaft, two first linkage gears, two second linkage gears, and two third linkage gears. The transmission shaft is rotatably mounted in the base. The first transmission gears are mounted on the transmission shaft. The second transmission gears are rotatably mounted in the base and mesh with the first transmission gears and the input end of the lifting component, respectively. The two ends of the linkage shaft are rotatably mounted on corresponding bases. The first linkage gears are mounted at the two ends of the linkage shaft, respectively. The second linkage gear is mounted at the lower end of the transmission shaft and meshes with the first linkage gear. The third linkage gear is mounted on one side of the linkage shaft and meshes with the electric gear.

[0018] In this technical solution, the lifting assembly includes a lead screw, a lifting seat, and a lifting gear; the lifting seat is installed at the lower part of the lifting frame, and an internal thread is provided in the lifting seat; the upper part of the lead screw meshes with the internal thread of the lifting seat, and the lower end of the lead screw is rotatably mounted on the base; the lifting gear is installed at the lower part of the lead screw and meshes with the second transmission gear.

[0019] In this technical solution, the lower support frame assembly includes a first bracket and a second bracket, which are distributed adjacent to each other on the left and right. The lower ends of the first bracket and the second bracket are both mounted on the base, and the upper ends of the first bracket and the second bracket are both mounted on the upper mounting base. The lower end of the lifting frame is inserted into the upper end of the second bracket and can move up and down.

[0020] The advantages of this utility model compared with the prior art are: the mosquito net frame can be raised and lowered manually or automatically, the structure is compact and simple, and it is convenient to replace the mosquito net when changing the mosquito net. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a top view of the present invention;

[0023] Figure 3 yes Figure 2 AA section view;

[0024] Figure 4 yes Figure 3 A magnified view of part C;

[0025] Figure 5 yes Figure 3 A magnified view of part D;

[0026] Figure 6 yes Figure 3 A magnified view of part E;

[0027] Figure 7 yes Figure 2 BB section view;

[0028] Figure 8 yes Figure 7 A magnified view of a local area F;

[0029] Figure 9 This is a schematic diagram of the structure of the present invention with the right lower support frame assembly removed;

[0030] Figure 10 yes Figure 9 A magnified view of a local area G;

[0031] Figure 11 yes Figure 9 A magnified view of a portion of H. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example

[0033] like Figures 1 to 11 As shown, it is a lifting structure for a mosquito net frame, including:

[0034] Two lifting support structures are provided; the two lifting support structures are distributed on the left and right sides. Each lifting support structure includes a lower support frame assembly, a lifting frame 2, a base 9, a lifting component, and a transmission component. The lower end of the lifting frame 2 is inserted into the upper end of the lower support frame assembly and can move up and down. The lower end of the lower support frame assembly is installed on the base 9. The lifting component is located in the lower support frame assembly. The output end of the lifting component is connected to the lifting frame 2 to drive the lifting frame 2 to move up and down. The transmission component is installed in the base 9. One end of the transmission component is connected to the input end of the lifting component.

[0035] Linkage component; the two ends of the linkage component are connected to the other ends of the two transmission components to enable the two lifting structures to move in tandem; and

[0036] Manual drive component; the manual drive component is located in a support frame assembly, the input end of the manual drive component is exposed and communicates with the outside, and the output end of the manual drive component is connected to the third end of a transmission component or a linkage component so that the manual drive component drives the two lifting frames 2 to rise and fall.

[0037] During operation, the user manually drives the transmission components, which in turn synchronize the two transmission components, driving the lifting components and thus moving the lifting frame 2 up and down. Alternatively, the user manually drives the linkage components, which in turn synchronize the two transmission components, driving the lifting components.

[0038] In this embodiment, a manual rotating shaft 4 is also included. The manual drive assembly includes an upper mounting base 3, a first manual gear 11, a second manual gear 12, and a first rotating shaft 13. The transmission assembly includes a transmission rotating shaft 22, a first transmission gear 18, and a second transmission gear 20. The upper end of the lower support frame assembly is mounted on the upper mounting base 3. The first manual gear 11 is rotatably mounted in the upper mounting base 3. One end of the manual rotating shaft 4 is inserted into the first manual gear 11. The second manual gear 12 is mounted on the upper end of the first rotating shaft 13 and meshes with the first manual gear 11. The upper part of the first rotating shaft 13 is rotatably mounted on the upper mounting base 3. The lower part of the first rotating shaft 13 is rotatably mounted on the base 9, and the transmission rotating shaft 22 is coaxial with the lower part of the first rotating shaft 13. The first transmission gear 18 is mounted on the transmission rotating shaft 22. The second transmission gear 20 is rotatably mounted in the base 9 and meshes with the first transmission gear 18 and the input end of the lifting assembly, respectively.

[0039] During operation, the user rotates the manual shaft 4, which drives the first manual gear 11 to rotate. The first manual gear 11 drives the second manual gear 12 to rotate, which in turn drives the first shaft 13 to rotate. The first shaft 13 drives the transmission shaft 22 to rotate, which in turn drives the first transmission gear 18 to rotate. The first transmission gear 18 then drives the second transmission gear 20 to rotate, thereby driving the lifting assembly to work.

[0040] In this embodiment, the lifting assembly includes a lead screw 14, a lifting seat 15, and a lifting gear 21. The lifting seat 15 is installed at the lower part of the lifting frame 2 and has an internal thread. The upper part of the lead screw 14 meshes with the internal thread of the lifting seat 15, and the lower end of the lead screw 14 is rotatably mounted on the base 9. The lifting gear 21 is installed at the lower part of the lead screw 14 and meshes with a second transmission gear 20. During operation, the second transmission gear 20 rotates, driving the lifting gear 21 to rotate, which in turn drives the lead screw 14 to rotate, thereby causing the lifting seat 15 to move up and down.

[0041] In this embodiment, the linkage assembly includes a linkage shaft 10, two first linkage gears 17, and a second linkage gear 19. The two ends of the linkage shaft 10 are rotatably mounted on corresponding bases 9. The first linkage gears 17 are respectively mounted on the two ends of the linkage shaft 10. The second linkage gear 19 is mounted on the lower end of the transmission shaft 22 and meshes with the first linkage gears 17. During operation, one second linkage gear 19 drives one first linkage gear 17 to rotate. The rotation of the first linkage gear 17 drives the linkage shaft 10 to rotate, thereby driving the other second linkage gear 19 to rotate. The rotation of the other second linkage gear 19 drives the transmission shaft 22 on the other side to rotate.

[0042] In this embodiment, the lower support frame assembly includes a first bracket 5 and a second bracket 6, which are distributed adjacent to each other on the left and right. The lower ends of the first bracket 5 and the second bracket 6 are both mounted on the base 9, and the upper ends of the first bracket 5 and the second bracket 6 are both mounted on the upper mounting base 3. The lower end of the lifting frame 2 is inserted into the upper end of the second bracket 6 and can move up and down. The manual drive component is located in the first bracket 5, and the lifting component is located in the second bracket 6. Example

[0043] like Figures 1 to 11 As shown, it is a lifting structure for a mosquito net frame, including:

[0044] Two lifting support structures are provided; the two lifting support structures are distributed on the left and right sides. Each lifting support structure includes a lower support frame assembly, a lifting frame 2, a base 9, a lifting component, and a transmission component. The lower end of the lifting frame 2 is inserted into the upper end of the lower support frame assembly and can move up and down. The lower end of the lower support frame assembly is installed on the base 9. The lifting component is located in the lower support frame assembly. The output end of the lifting component is connected to the lifting frame 2 to drive the lifting frame 2 to move up and down. The transmission component is installed in the base 9. One output end of the transmission component is connected to the input end of the lifting component.

[0045] Linkage component; the two ends of the linkage component are connected to one end of the two transmission components to enable the two lifting structures to move in tandem; and

[0046] An electric drive assembly; the electric drive assembly is mounted on a base 9, and the output end of the electric drive assembly is connected to a linkage assembly or the other end of a transmission assembly, thereby enabling the electric drive assembly to drive the two lifting frames 2 to rise and fall.

[0047] During operation, the electric drive component drives the linkage component, which in turn drives the transmission component, which in turn drives the lifting structure, thereby causing the lifting frame 2 to move up and down; or the electric drive component drives one transmission component, which in turn drives the linkage component, which in turn drives another transmission component, thereby causing the two transmission components to drive the lifting structure.

[0048] In this embodiment, the electric drive assembly includes a motor 8, a knob 23, a protrusion 24, an elastic element 25, a motor mounting base 26, a movable frame 27, a first fastener 28, a second fastener 29, a motor drive shaft 30, and an electric gear 31. The motor mounting base 26 is mounted on a base 9, the motor 8 is mounted on the motor mounting base 26, the second fastener 29 is mounted on the output shaft of the motor 8 and located in the motor mounting base 26, the movable frame 27 is mounted in the motor mounting base 26 and can move left and right, the elastic element 25 is located between one side of the movable frame 27 and the motor mounting base 26, and the protrusion 24 is rotatably mounted on the motor... The motor mounting base 26 is located on the other side of the movable frame 27 between the motor mounting base 26 and the protrusion 24 and the elastic element 25, thereby cooperating to control the movement of the movable frame 27. The motor drive shaft 30 is rotatably mounted on the movable frame 27, and the first fastening member 28 is mounted on one end of the motor drive shaft 30. When the movable frame 27 moves toward the motor 8, the first fastening member 28 and the second fastening member 29 are fastened together. When the movable frame 27 moves away from the motor 8, the first fastening member 28 and the second fastening member 29 are disengaged. The electric gear 31 is mounted on the other end of the motor drive shaft 30 and connected to the linkage assembly, thereby driving the lifting frame 2 to rise and fall. During operation, the user rotates the knob 23 to drive the protrusion 24 to rotate. After the protrusion 24 rotates, it interacts with the elastic element 25, thereby causing the moving frame 27 to move left and right. When the moving frame 27 moves towards the motor 8, the first fastening member 28 and the second fastening member 29 fasten together. When the moving frame 27 moves away from the motor 8, the first fastening member 28 and the second fastening member 29 disengage. When the first fastening member 28 and the second fastening member 29 are fastened together, the motor 8 works, driving the motor transmission shaft 30 to work. The motor transmission shaft 30 drives the electric gear 31 to work, thereby driving the linkage assembly to lift the lifting frame 2.

[0049] In this embodiment, the transmission assembly includes a transmission shaft 22, a first transmission gear 18, and a second transmission gear 20. The linkage assembly includes a linkage shaft 10, two first linkage gears 17, two second linkage gears 19, and two third linkage gears 16. The transmission shaft 22 is rotatably mounted in the base 9. The first transmission gears 18 are mounted on the transmission shaft 22. The second transmission gears 20 are rotatably mounted in the base 9 and mesh with the first transmission gears 18 and the input end of the lifting assembly, respectively. The two ends of the linkage shaft 10 are rotatably mounted on the corresponding base 9. The first linkage gears 17 are mounted on the two ends of the linkage shaft 10, respectively. The second linkage gears 19 are mounted on the lower end of the transmission shaft 22 and mesh with the first linkage gears 17. The third linkage gears 16 are mounted on one side of the linkage shaft 10 and mesh with the electric gear 31. During operation, the electric gear 31 drives the third linkage gear 16, the third linkage gear 16 drives the second linkage gear 19, the second linkage gear 19 drives the transmission shaft 22, the transmission shaft 22 drives the first transmission gear 18, the first transmission gear 19 drives the second transmission gear 20, and the second transmission gear 20 drives the lifting assembly.

[0050] In this embodiment, the lifting assembly includes a lead screw 14, a lifting seat 15, and a lifting gear 21. The lifting seat 15 is installed at the lower part of the lifting frame 2 and has an internal thread. The upper part of the lead screw 14 meshes with the internal thread of the lifting seat 15, and the lower end of the lead screw 14 is rotatably mounted on the base 9. The lifting gear 21 is installed at the lower part of the lead screw 14 and meshes with a second transmission gear 20. During operation, the second transmission gear 20 rotates, driving the lifting gear 21 to rotate, which in turn drives the lead screw 14 to rotate, thereby causing the lifting seat 15 to move up and down.

[0051] In this embodiment, the lower support frame assembly includes a first bracket 5 and a second bracket 6, which are distributed adjacent to each other on the left and right. The lower ends of the first bracket 5 and the second bracket 6 are both mounted on the base 9, and the upper ends of the first bracket 5 and the second bracket 6 are both mounted on the upper mounting seat 3. The lower end of the lifting frame 2 is inserted into the upper end of the second bracket 6 and can move up and down.

[0052] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations of these embodiments without departing from the principles and spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A lifting structure for a mosquito net frame, characterized in that... include: Two lifting support structures; The two lifting support structures are distributed on the left and right. Both lifting support structures include a lower support frame assembly, a lifting frame (2), a base (9), a lifting component and a transmission component. The lower end of the lifting frame (2) is inserted into the upper end of the lower support frame assembly and can move up and down. The lower end of the lower support frame assembly is installed on the base (9). The lifting component is located in the lower support frame assembly. The output end of the lifting component is connected to the lifting frame (2) to drive the lifting frame (2) to move up and down. The transmission component is installed in the base (9). One end of the transmission component is connected to the input end of the lifting component. Linkage component; the two ends of the linkage component are connected to the other ends of the two transmission components to enable the two lifting structures to move in tandem; and Manual drive component; the manual drive component is located in a support frame component, the input end of the manual drive component is exposed and communicates with the outside, and the output end of the manual drive component is connected to the third end of a transmission component or a linkage component so that the manual drive component drives the two lifting frames (2) to rise and fall.

2. The lifting structure of the mosquito net frame according to claim 1, characterized in that... It also includes a manual rotating shaft (4). The manual drive assembly includes an upper mounting base (3), a first manual gear (11), a second manual gear (12), and a first rotating shaft (13). The transmission assembly includes a transmission rotating shaft (22), a first transmission gear (18), and a second transmission gear (20). The upper end of the lower support frame assembly is mounted on the upper mounting base (3). The first manual gear (11) is rotatably mounted in the upper mounting base (3). One end of the manual rotating shaft (4) is inserted into the first manual gear (11), and the second manual gear (12) is mounted on... The first rotating shaft (13) is mounted on the upper end and meshes with the first manual gear (11). The upper part of the first rotating shaft (13) is rotatably mounted on the upper mounting base (3). The lower part of the first rotating shaft (13) is rotatably mounted on the base (9). The transmission shaft (22) is coaxial with the lower part of the first rotating shaft (13). The first transmission gear (18) is mounted on the transmission shaft (22). The second transmission gear (20) is rotatably mounted in the base (9). The second transmission gear (20) meshes with the first transmission gear (18) and the input end of the lifting assembly, respectively.

3. The lifting structure of the mosquito net frame according to claim 2, characterized in that... The lifting assembly includes a lead screw (14), a lifting seat (15), and a lifting gear (21); the lifting seat (15) is installed on the lower part of the lifting frame (2), and an internal thread is provided in the lifting seat (15). The upper part of the lead screw (14) meshes with the internal thread of the lifting seat (15), and the lower end of the lead screw (14) is rotatably mounted on the base (9). The lifting gear (21) is installed on the lower part of the lead screw (14) and meshes with the second transmission gear (20).

4. The lifting structure of the mosquito net frame according to claim 2, characterized in that... The linkage assembly includes a linkage shaft (10), two first linkage gears (17) and a second linkage gear (19). The two ends of the linkage shaft (10) are rotatably mounted on the corresponding base (9). The first linkage gears (17) are respectively mounted on the two ends of the linkage shaft (10). The second linkage gear (19) is mounted on the lower end of the transmission shaft (22) and meshes with the first linkage gears (17).

5. The lifting structure of the mosquito net frame according to claim 2, characterized in that... The lower support frame assembly includes a first bracket (5) and a second bracket (6), which are arranged adjacent to each other on the left and right. The lower ends of the first bracket (5) and the second bracket (6) are both mounted on the base (9), and the upper ends of the first bracket (5) and the second bracket (6) are both mounted on the upper mounting seat (3). The lower end of the lifting frame (2) is inserted into the upper end of the second bracket (6) and can move up and down. The manual drive component is located in the first bracket (5), and the lifting component is located in the second bracket (6).

6. A lifting structure for a mosquito net frame, characterized in that... include: Two lifting support structures; The two lifting support structures are distributed on the left and right. Both lifting support structures include a lower support frame assembly, a lifting frame (2), a base (9), a lifting component and a transmission component. The lower end of the lifting frame (2) is inserted into the upper end of the lower support frame assembly and can move up and down. The lower end of the lower support frame assembly is installed on the base (9). The lifting component is located in the lower support frame assembly. The output end of the lifting component is connected to the lifting frame (2) to drive the lifting frame (2) to move up and down. The transmission component is installed in the base (9). One output end of the transmission component is connected to the input end of the lifting component. Linkage component; the two ends of the linkage component are connected to one end of the two transmission components, thereby enabling the two lifting structures to move together; as well as Electric drive assembly; the electric drive assembly is mounted on a base (9), and the output end of the electric drive assembly is connected to the linkage assembly or the other end of a transmission assembly so that the electric drive assembly drives the two lifting frames (2) to rise and fall.

7. The lifting structure of the mosquito net frame according to claim 6, characterized in that... The electric drive assembly includes a motor (8), a knob (23), a protrusion (24), an elastic element (25), a motor mounting base (26), a movable frame (27), a first fastener (28), a second fastener (29), a motor drive shaft (30), and an electric gear (31). The motor mounting base (26) is mounted on a base (9), the motor (8) is mounted on the motor mounting base (26), the second fastener (29) is mounted on the output shaft of the motor (8) and located in the motor mounting base (26), the movable frame (27) is mounted in the motor mounting base (26) and moves left and right, the elastic element (25) is located between one side of the movable frame (27) and the motor mounting base (26), and the protrusion (24) is rotatably mounted on the motor mounting base. The mounting base (26) is located on the other side of the movable frame (27) between the motor mounting base (26) and the protrusion (24) and the elastic element (25) cooperate to control the movement of the movable frame (27). The motor drive shaft (30) is rotatably mounted on the movable frame (27). The first fastener (28) is mounted on one end of the motor drive shaft (30). When the movable frame (27) moves toward the motor (8), the first fastener (28) and the second fastener (29) are fastened together. When the movable frame (27) moves away from the motor (8), the first fastener (28) and the second fastener (29) are disengaged. The electric gear (31) is mounted on the other end of the motor drive shaft (30) and connected to the linkage assembly to drive the lifting frame (2) to rise and fall.

8. The lifting structure of the mosquito net frame according to claim 7, characterized in that... The transmission assembly includes a transmission shaft (22), a first transmission gear (18), and a second transmission gear (20). The linkage assembly includes a linkage shaft (10), two first linkage gears (17), two second linkage gears (19), and two third linkage gears (16). The transmission shaft (22) is rotatably mounted in the base (9). The first transmission gear (18) is mounted on the transmission shaft (22). The second transmission gear (20) is rotatably mounted in the base (9). The second transmission gear (20) meshes with the first transmission gear (18) and the input end of the lifting assembly, respectively. The two ends of the linkage shaft (10) are rotatably mounted on the corresponding base (9). The first linkage gears (17) are mounted on the two ends of the linkage shaft (10), respectively. The second linkage gear (19) is mounted on the lower end of the transmission shaft (22) and meshes with the first linkage gear (17). The third linkage gear (16) is mounted on one side of the linkage shaft (10) and meshes with the electric gear (31).

9. The lifting structure of the mosquito net frame according to claim 8, characterized in that... The lifting assembly includes a lead screw (14), a lifting seat (15), and a lifting gear (21); the lifting seat (15) is installed on the lower part of the lifting frame (2), and an internal thread is provided in the lifting seat (15). The upper part of the lead screw (14) meshes with the internal thread of the lifting seat (15), and the lower end of the lead screw (14) is rotatably mounted on the base (9). The lifting gear (21) is installed on the lower part of the lead screw (14) and meshes with the second transmission gear (20).

10. The lifting structure of the mosquito net frame according to claim 7, characterized in that... The lower support frame assembly includes a first bracket (5) and a second bracket (6). The first bracket (5) and the second bracket (6) are distributed adjacent to each other on the left and right. The lower ends of the first bracket (5) and the second bracket (6) are both mounted on the base (9). The upper ends of the first bracket (5) and the second bracket (6) are both mounted on the upper mounting seat (3). The lower end of the lifting frame (2) is inserted into the upper end of the second bracket (6) and can move up and down.

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