Household floor fan with sterilization and purification functions

Abstract

The application discloses a household floor fan with sterilization and purification functions, which comprises a first vertical rod, a mounting base is threadedly connected to the lower end of the first vertical rod, a supporting foot is connected to the inner end of the mounting base, an anti-skid pad is connected to the lower end surface of the mounting base and the supporting foot, a second vertical rod is arranged on the upper end of the first vertical rod, and a control assembly is arranged on the outer middle part of the second vertical rod; a protective shell is arranged on the upper end of the second vertical rod, and a driving motor is arranged in the protective shell; and a rear mounting shell is arranged on the front end of the protective shell and located on the outer side of a driving rod and a fixing ring. The household floor fan with sterilization and purification functions has the functions of accelerating air circulation and sterilization and purification, is good in functionality, improves the air quality in a room, and facilitates the dismounting and cleaning of a lower mounting frame and a first filter screen.

Description

Technical Field

[0001] This invention relates to the technical field of floor fans, specifically a household floor fan with sterilization and purification functions. Background Technology

[0002] Floor fans are household appliances with advantages such as large air volume and low noise. They mainly use an electric motor to drive the fan blades to rotate, thereby accelerating the circulation of indoor air and achieving the function of preventing heatstroke and cooling down, thus improving the environment. However, most household floor fans still have certain defects, such as:

[0003] Chinese Patent Publication No. CN109779936B discloses a floor fan with automatic height adjustment, including a counterweight base, a control box, and a support platform. The counterweight base has storage slots at its four lower corners, and an electric telescopic rod is installed within each slot. A connecting plate is attached to the lower end of the electric telescopic rod. The advantages are: the storage slots and electric telescopic rod allow for convenient storage of the casters; the counterweight base contacts the ground after the floor fan has moved, improving its stability; the electric push rod, ultrasonic ranging sensor, microprocessor, and signal transceiver enable automatic height adjustment, avoiding the tedious manual adjustment of traditional methods and improving the practicality of the floor fan; and the inclusion of temperature and infrared sensors allows for automatic start-up of the floor fan when the indoor temperature exceeds a set value or when someone is near the fan, making the floor fan more intelligent.

[0004] Chinese Patent Publication No. CN111207097B discloses a foldable floor fan, including a base, a support rod, fan blades, a fan blade cover, and a motor assembly. The base consists of a center seat, foot plates, and hinges. The foot plates are connected to the center seat via hinges. The bottom end of the support rod is connected to the base, and the top end is connected to the motor assembly. The motor assembly includes a micro motor, and the fan blades are mounted on the output shaft end of the micro motor. The fan blade cover consists of protective ribs, a front cover, and a rear cover. The front and rear covers have T-shaped grooves A around their perimeters. The two ends of the protective ribs are fitted into the T-shaped grooves A. The protective ribs are composed of U-shaped ribs and arc-shaped ribs. The U-shaped ribs are connected to the arc-shaped ribs through their short ribs. The rear cover is connected to the outer shell of the motor assembly. This invention allows the base, fan blade cover, and fan blades of the floor fan to be folded up, reducing the storage space required for the floor fan and facilitating transportation and home storage.

[0005] However, most existing technical solutions have the following drawbacks: floor fans only have the function of accelerating air circulation when they are working, and they do not have a good sterilization and purification function. When sterilization is needed in the home, other tools are required, which makes the floor fan quite limited in use. Therefore, we provide a household floor fan with sterilization and purification function to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a household floor fan with sterilization and purification functions, in order to solve the problem mentioned in the background art that floor fans only have a single function of accelerating air circulation and do not have a good sterilization and purification function. When sterilization is needed in the home, other tools are required, which leads to the great limitations of floor fans in use.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a household floor fan with sterilization and purification functions, comprising:

[0008] The first upright has a mounting base threadedly connected to its lower outer side, and a support bracket connected to the inner side of the mounting base. The lower end surfaces of the mounting base and the support bracket are both fitted with anti-slip pads. A second upright is provided on the upper outer side of the first upright, and a control component is provided in the middle of the outer side of the second upright.

[0009] A protective shell is installed on the upper outer side of the second upright, and a drive motor is installed inside the protective shell. The output end of the drive motor is connected to a drive rod. A fixing ring is installed on the outer side of the front end of the drive rod, and a fan blade is fixedly installed on the outer end of the fixing ring.

[0010] The rear mounting housing is located on the outer front end of the protective housing and outside the drive rod and the fixing ring. A pre-made through hole is provided through the inner wall of the rear mounting housing. The front mounting housing is installed on the outer front end of the rear mounting housing, and the first fixing bolt is installed through the inner upper and lower ends of the front mounting housing.

[0011] The fixing frame is integrally fixedly installed at the middle rear end of the front mounting shell, and a disinfection component is installed inside the fixing frame. A connecting magnetic block connected to the fixing frame is installed on the outer rear end of the disinfection component. An upper mounting frame is provided on the upper rear end of the rear mounting shell, and a lower mounting frame is installed on the lower rear end of the rear mounting shell. A first filter screen is embedded inside both the upper and lower mounting frames.

[0012] The second filter screen is embedded in the front interior of the upper and lower mounting frames respectively, and a positioning component is provided inside the lower end of the upper mounting frame.

[0013] Preferably, the front mounting housing has second fixing bolts installed through the interior of both the left and right ends, and the front mounting housing forms a detachable structure with the rear mounting housing through the second fixing bolts and the first fixing bolts.

[0014] Preferably, the front mounting shell, the rear mounting shell, and the upper mounting frame are arranged sequentially from front to back, and the longitudinal sections of the upper mounting frame and the lower mounting frame are both semi-circular.

[0015] Preferably, the disinfection assembly includes a liquid storage tank, a corrugated guide pipe, a water pump, a connecting pipe, a liquid storage tank, and an atomizing nozzle;

[0016] The liquid storage tank is installed inside the fixed frame;

[0017] A corrugated guide tube is installed on the lower outer side of the liquid storage tank and located inside the fixing frame;

[0018] A water pump is installed on the outside of the left end of the corrugated guide pipe, and a connecting pipe is connected to the outside of the water pump.

[0019] The liquid storage tank is located inside the fixed frame, and the atomizing nozzle is installed on the outside of the fixed frame.

[0020] Preferably, the liquid storage tank has protrusion structures on both the lower left and right sides, and the liquid storage tank is slidably connected to the fixing frame through the protrusion structures, and a sealing plug is installed in the middle of the upper end of the liquid storage tank.

[0021] Preferably, the atomizing nozzle is arranged at equal angles on the outer side and inside of the fixing frame, and the longitudinal section of the liquid storage tank opened inside the fixing frame is arc-shaped. Furthermore, the atomizing nozzle and the plate-shaped structure arranged at equal angles inside the front end of the front mounting housing are staggered.

[0022] Preferably, the upper mounting frame and the lower mounting frame are respectively connected to the rear mounting shell by the first fixing bolt to form a detachable structure, and the longitudinal section of the first filter screen installed in the upper mounting frame is fan-shaped and plays a role in purifying the air.

[0023] Preferably, the positioning assembly includes a positioning rod, a connecting rod, a support spring, and a compression rod;

[0024] The positioning rod is fixedly installed on the outer side of the upper end of the lower mounting frame;

[0025] The connecting rod is installed inside the positioning rod through a pre-fabricated groove;

[0026] A support spring is nested on the outside of the connecting rod and located inside the positioning rod;

[0027] The compression rod is installed inside the lower end of the upper mounting frame.

[0028] Preferably, the positioning rod is connected to the upper mounting frame by a plug-in connection, and the connecting rod forms a telescopic structure with the positioning rod through a support spring.

[0029] Preferably, the connecting rod is connected to the upper mounting frame by a snap-fit ​​method, and the connecting rod and the pressing rod are arranged in a one-to-one correspondence between the inside and outside.

[0030] Compared with the prior art, the beneficial effects of the present invention are: the household floor fan with sterilization and purification function has a good sterilization and purification function while accelerating air circulation, which makes the overall functionality better, improves the indoor air quality at home, and facilitates the disassembly and cleaning of the lower mounting frame and the first filter.

[0031] 1. Equipped with a fixed frame, a liquid storage tank, and atomizing nozzles, the atomizing nozzles are set at equal angles on the outside and inside of the fixed frame, and the atomizing nozzles are staggered with the plate-like structure set at equal angles on the front end of the front mounting shell. When the water pump is turned on, the disinfectant in the liquid storage tank can enter the liquid storage tank through the corrugated guide pipe, water pump, and connecting pipe, and then be evenly sprayed on the outside of the middle of the front mounting shell through the atomizing nozzles. This allows the disinfectant to be evenly and widely sprayed in the home under the action of the wind generated by the fan blades, thus accelerating air circulation and providing good functionality and ease of use.

[0032] 2. It is equipped with an upper mounting frame, a lower mounting frame, and a first filter screen. The front mounting shell, the rear mounting shell, and the upper mounting frame are arranged sequentially from front to back. The longitudinal sections of the upper and lower mounting frames are both semi-circular, while the longitudinal section of the first filter screen is fan-shaped and plays a role in purifying the air. The first filter screen is installed on the outer rear end of the rear mounting shell through the upper and lower mounting frames. When the fan blades rotate, the first and second filters can filter and purify the air drawn into the rear mounting shell through the pre-made through holes, thereby preventing impurities in the air from entering the interior of the rear mounting shell and thus improving the indoor air quality in the home.

[0033] 3. The device is equipped with a first fixing bolt, a positioning rod, and a connecting rod. The upper and lower mounting frames are connected to the rear mounting shell via the first fixing bolt to form a detachable structure. The positioning rod is connected to the upper mounting frame by a plug-in connection, and the connecting rod is connected to the positioning rod by a support spring to form a telescopic structure. The connecting rod is connected to the upper mounting frame by a snap-fit ​​connection. After the first fixing bolt is released from the upper and lower mounting frames, the pressing rod is pushed inward, causing the pressing rod to push the connecting rod inward and release it from the snap-fit ​​connection with the upper mounting frame. At this time, the support spring is stretched. Then, the upper mounting frame is lifted upward, allowing the positioning rod to separate from the upper mounting frame. This facilitates the disassembly of the upper and lower mounting frames, making it easier to clean the first and second filter screens and improving the overall purification effect. Attached Figure Description

[0034] Figure 1 This is a frontal cross-sectional view of the present invention;

[0035] Figure 2This is a schematic diagram of the side cross-sectional structure of the connection between the rear mounting housing and the front mounting housing of the present invention;

[0036] Figure 3 This is a front view cross-sectional structural diagram of the connection between the upper and lower mounting frames of the present invention;

[0037] Figure 4 This is a top cross-sectional view of the front mounting shell and the connection of the second fixing bolt of the present invention.

[0038] Figure 5 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0039] Figure 6 For the present invention Figure 1 Enlarged structural diagram at point B;

[0040] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point C.

[0041] In the diagram: 1. First upright; 2. Mounting base; 3. Support leg; 4. Anti-slip pad; 5. Second upright; 6. Control assembly; 7. Protective housing; 8. Drive motor; 9. Drive rod; 10. Fixing ring; 11. Fan blade; 12. Rear mounting housing; 13. Pre-drilled through hole; 14. Front mounting housing; 15. First fixing bolt; 16. Second fixing bolt; 17. Fixing bracket; 18. Disinfection assembly; 1801. Storage Liquid tank; 1802, corrugated guide pipe; 1803, water pump; 1804, connecting pipe; 1805, liquid storage tank; 1806, atomizing nozzle; 19, connecting magnetic block; 20, upper mounting frame; 21, lower mounting frame; 22, first filter screen; 23, second filter screen; 24, positioning assembly; 2401, positioning rod; 2402, connecting rod; 2403, support spring; 2404, squeezing rod; 25, sealing plug. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figure 1-7The present invention provides a technical solution: a household floor fan with sterilization and purification function, including a first upright 1 with a mounting base 2 threadedly connected to the lower outer side, and a support bracket 3 connected to the inner side of the mounting base 2. The lower end surfaces of the mounting base 2 and the support bracket 3 are both fitted with anti-slip pads 4. A second upright 5 is provided on the upper outer side of the first upright 1, and a control component 6 is provided in the middle of the outer side of the second upright 5. A protective shell 7 is installed on the upper outer side of the second upright 5, and a drive motor 8 is provided inside the protective shell 7. The output end of the drive motor 8 is connected to a drive rod 9. A fixing ring 10 is installed on the outer side of the front end of the drive rod 9, and a fan blade 11 is fixedly installed on the outer side of the fixing ring 10.

[0044] Meanwhile, the rear mounting housing 12 is located on the outer front end of the protective housing 7 and outside the drive rod 9 and the fixing ring 10. A pre-drilled through hole 13 is provided inside the outer wall of the rear mounting housing 12. A front mounting housing 14 is installed on the outer front end of the rear mounting housing 12. First fixing bolts 15 are installed through the upper and lower ends of the front mounting housing 14, and second fixing bolts 16 are installed through the left and right ends of the front mounting housing 14. A fixing frame 17 is integrally fixedly installed at the middle rear end of the front mounting housing 14. A disinfection component 18 is installed inside the fixing frame 17, and a connecting magnetic block 19 connected to the fixing frame 17 is installed on the outer rear end of the disinfection component 18. A liquid storage tank 1801 is installed inside the fixing frame 17, and a corrugated guide pipe 1802 is installed on the outer lower end of the liquid storage tank 1801 and located on the outer side of the fixing frame 17. Inside the fixed frame 17, a water pump 1803 is installed on the outer side of the left end of the corrugated guide pipe 1802, and a connecting pipe 1804 is connected to the outer side of the water pump 1803. A liquid storage tank 1805 is opened inside the fixed frame 17, and an atomizing nozzle 1806 is installed inside the outer side of the fixed frame 17. A sealing plug 25 is installed in the middle of the upper end of the liquid storage tank 1801. An upper mounting frame 20 is provided on the upper rear end of the rear mounting housing 12, and a lower mounting frame 21 is installed on the lower rear end of the rear mounting housing 12. A first filter screen 22 is embedded inside both the upper mounting frame 20 and the lower mounting frame 21. A second filter screen 23 is embedded in the front side of the upper mounting frame 20 and the lower mounting frame 21, respectively. A positioning component 24 is provided inside the lower end of the upper mounting frame 20. Together, they form a household floor fan with sterilization and purification functions.

[0045] When using a household floor fan with sterilization and purification functions, specifically as follows: Figure 1 , Figure 2 and Figure 6As shown, the entire assembly is first placed stably in the designated location at home using the mounting base 2, support legs 3, and anti-slip pads 4. Then, the first upright 1 is threaded onto the upper center of the mounting base 2. In use, the power cord is connected, and the drive motor 8 is started via the control component 6. The drive motor 8 causes the drive rod 9, fixing ring 10, and fan blades 11 to rotate inside the rear mounting housing 12, thus facilitating faster airflow. Since the lower left and right sides of the liquid storage tank 1801 are equipped with protrusion structures, and the liquid storage tank 1801 is slidably connected to the fixing frame 17 via these protrusion structures, combined with… Figure 5 As shown, before starting the drive motor 8, the liquid storage tank 1801 can be pulled forward. At this time, the liquid storage tank 1801 is slidably connected inside the fixing frame 17. Then, the sealing plug 25 is pulled out from the top of the liquid storage tank 1801, and the disinfectant required for sterilization is injected into the liquid storage tank 1801. After the disinfectant is injected, the liquid storage tank 1801 is pushed back into the fixing frame 17 according to the above steps. At this time, the connecting magnetic block 19 is magnetically attracted to the fixing frame 17, and the liquid storage tank 1801 is firmly installed.

[0046] Because the atomizing nozzle 1806 is set at an equal angle on the outside and inside of the fixing frame 17, and the atomizing nozzle 1806 and the plate-shaped structure set at an equal angle on the front end of the front mounting housing 14 are staggered, when the water pump 1803 is turned on, the disinfectant water enters the interior of the liquid storage tank 1805 through the corrugated guide pipe 1802, the water pump 1803 and the connecting pipe 1804, and is evenly sprayed on the outside of the middle part of the front mounting housing 14 through the atomizing nozzle 1806, the disinfectant water can be evenly and widely sprayed in the home under the action of the wind generated by the fan blade 11, which is convenient to use;

[0047] Specific examples Figure 2 , Figure 3 and Figure 4 As shown, the front mounting housing 14, the rear mounting housing 12, and the upper mounting frame 20 are arranged sequentially from front to back, and the longitudinal sections of the upper mounting frame 20 and the lower mounting frame 21 are both semi-circular. Meanwhile, the longitudinal section of the first filter screen 22 is fan-shaped and plays a role in purifying the air. The first filter screen 22 is installed on the outer side of the rear mounting housing 12 through the upper mounting frame 20 and the lower mounting frame 21 respectively. When the fan blade 11 rotates, the first filter screen 22 and the second filter screen 23 can filter and purify the air drawn into the rear mounting housing 12 by the fan blade 11 through the pre-made through hole 13, thereby preventing impurities in the air from entering the interior of the rear mounting housing 12 and thus improving the indoor air quality at home.

[0048] Specific examples Figure 2 , Figure 4 and Figure 7As shown, when the first filter screen 22 and the second filter screen 23 need to be disassembled and cleaned, the first fixing bolt 15 can be rotated to make the first fixing bolt 15 threadedly connected to the front mounting housing 14, the rear mounting housing 12 and the upper mounting frame 20 respectively, so that the first fixing bolt 15 is separated from the upper mounting frame 20, thereby losing its fixing function to the upper mounting frame 20. Similarly, the first fixing bolt 15 is separated from the lower mounting frame 21. Since the positioning rod 2401 is fixedly installed on the upper outer side of the lower mounting frame 21, the connecting rod 2402 is installed inside the positioning rod 2401 through the pre-made groove, the support spring 2403 is nested on the outer side of the connecting rod 2402 and located inside the positioning rod 2401, and the compression rod 2404 is installed on the upper mounting frame 21. Inside the lower end of the 0, the positioning rod 2401 is connected to the upper mounting frame 20 by a plug-in connection, and the connecting rod 2402 forms a telescopic structure with the positioning rod 2401 through the support spring 2403. The connecting rod 2402 is connected to the upper mounting frame 20 by a snap-fit ​​connection. Pushing the squeezing rod 2404 inward causes the squeezing rod 2404 to push the connecting rod 2402 to slide inward and disengage from the upper mounting frame 20. At this time, the support spring 2403 is stretched. Then, the upper mounting frame 20 is lifted upward to separate the positioning rod 2401 from the upper mounting frame 20, thereby facilitating the disassembly of the upper mounting frame 20 and the lower mounting frame 21, and thus facilitating the cleaning of the first filter screen 22 and the second filter screen 23, which can improve the overall purification effect.

[0049] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A household floor fan with sterilization and purification function, characterized in that, include: The first upright (1) has a mounting base (2) threadedly connected to its lower outer side, and a support bracket (3) connected to the inner side of the mounting base (2). The lower end surfaces of the mounting base (2) and the support bracket (3) are fitted with anti-slip pads (4). The upper outer side of the first upright (1) is provided with a second upright (5), and the middle outer side of the second upright (5) is provided with a control component (6). The protective shell (7) is installed on the upper outer side of the second upright (5), and the protective shell (7) is equipped with a drive motor (8), and the output end of the drive motor (8) is connected to a drive rod (9). A fixing ring (10) is installed on the outer side of the front end of the drive rod (9), and a fan blade (11) is fixedly installed on the outer side of the fixing ring (10). The rear mounting housing (12) is located on the outer front end of the protective housing (7) and on the outer side of the drive rod (9) and the fixing ring (10). The outer wall of the rear mounting housing (12) is provided with a pre-made through hole (13). The front mounting housing (14) is installed on the outer front end of the rear mounting housing (12). The first fixing bolt (15) is installed through the upper and lower ends of the front mounting housing (14). A fixed frame (17) is integrally fixedly installed at the middle rear end of the front mounting shell (14), and a disinfection component (18) is installed inside the fixed frame (17). A connecting magnetic block (19) connected to the fixed frame (17) is installed on the outer rear end of the disinfection component (18). An upper mounting frame (20) is provided on the upper rear end of the rear mounting shell (12), and a lower mounting frame (21) is installed on the lower rear end of the rear mounting shell (12). A first filter screen (22) is embedded inside both the upper mounting frame (20) and the lower mounting frame (21). The second filter screen (23) is respectively embedded in the front interior of the upper mounting frame (20) and the lower mounting frame (21), and a positioning component (24) is provided inside the lower end of the upper mounting frame (20).

2. A household floor fan with sterilization and purification function according to claim 1, characterized in that: The front mounting housing (14) has second fixing bolts (16) installed through the interior of both the left and right ends, and the front mounting housing (14) and the rear mounting housing (12) form a detachable structure through the second fixing bolts (16) and the first fixing bolts (15).

3. A household floor fan with sterilization and purification function according to claim 2, characterized in that: The front mounting shell (14), the rear mounting shell (12), and the upper mounting frame (20) are arranged sequentially from front to back, and the longitudinal sections of the upper mounting frame (20) and the lower mounting frame (21) are both semi-circular.

4. A household floor fan with sterilization and purification function according to claim 1, characterized in that: The disinfection component (18) includes a liquid storage tank (1801), a corrugated guide pipe (1802), a water pump (1803), a connecting pipe (1804), a liquid storage tank (1805), and an atomizing nozzle (1806); The liquid storage tank (1801) is installed inside the mounting bracket (17); A corrugated guide tube (1802) is installed on the outer side of the lower end of the liquid storage tank (1801) and located inside the fixing frame (17); A water pump (1803) is installed on the outside of the left end of the corrugated guide pipe (1802), and a connecting pipe (1804) is connected to the outside of the water pump (1803). A liquid storage tank (1805) is located inside the fixture (17), and an atomizing nozzle (1806) is installed inside the outer side of the fixture (17).

5. A household floor fan with sterilization and purification function according to claim 4, characterized in that: The lower left and right sides of the liquid storage tank (1801) are provided with protrusion structures, and the liquid storage tank (1801) is connected to the fixing frame (17) in a sliding manner through the protrusion structures. A sealing plug (25) is installed in the middle of the upper end of the liquid storage tank (1801).

6. A household floor fan with sterilization and purification function according to claim 4, characterized in that: The atomizing nozzle (1806) is set at equal angles on the outside and inside of the fixing frame (17), and the longitudinal section of the liquid storage tank (1805) opened inside the fixing frame (17) is arc-shaped. The atomizing nozzle (1806) and the plate-shaped structure set at equal angles inside the front end of the front mounting shell (14) are staggered.

7. A household floor fan with sterilization and purification function according to claim 3, characterized in that: The upper mounting frame (20) and the lower mounting frame (21) are respectively connected to the rear mounting shell (12) by the first fixing bolt (15) to form a detachable structure. The first filter screen (22) installed in the upper mounting frame (20) has a fan-shaped longitudinal section and plays a role in purifying the air.

8. A household floor fan with sterilization and purification function according to claim 1, characterized in that: The positioning assembly (24) includes a positioning rod (2401), a connecting rod (2402), a support spring (2403), and a pressing rod (2404); The positioning rod (2401) is fixedly installed on the outer side of the upper end of the lower mounting frame (21); Connecting rod (2402), which is installed inside positioning rod (2401) through prefabricated groove; A support spring (2403) is nested on the outside of the connecting rod (2402) and located inside the positioning rod (2401); The compression rod (2404) is installed inside the lower end of the upper mounting frame (20).

9. A household floor fan with sterilization and purification function according to claim 8, characterized in that: The positioning rod (2401) is connected to the upper mounting frame (20) by a plug-in connection, and the connecting rod (2402) forms a telescopic structure with the positioning rod (2401) through the support spring (2403).

10. A household floor fan with sterilization and purification function according to claim 9, characterized in that: The connecting rod (2402) is connected to the upper mounting frame (20) by a snap-fit ​​method, and the connecting rod (2402) and the pressing rod (2404) are arranged in a one-to-one correspondence between the inside and outside.

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