Floor circulation fan

Abstract

The present invention provides a floor-standing circulation fan. The floor-standing circulation fan is disassembled into a fan head, a telescopic rod component and a fan base that can be assembled and electrically connected, and the swing and pitch components and the telescopic bracket component of the fan head are retracted and arranged inside a mesh cover component. When not in use, the telescopic bracket component of the fan head can be completely retracted into the mesh cover component, so that the entire fan head forms a cylindrical shape, and the telescopic rod component can be retracted and placed in the internal storage space of the fan base. Then, the fan head and the fan base 3 in the retracted state are overlapped to form an easily stored cylindrical object, which effectively solves the storage problem of traditional floor-standing electric fans and realizes a floor-standing circulation fan with novel structure, convenient storage, small storage volume, flexible conversion, and automatic pitch and swing.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and in particular to the technical field of floor-standing circulation fans. Background Art

[0002] An electric fan is a household appliance that uses an electric motor to drive the blades to rotate to accelerate the circulation of air. It is mainly used to cool down and circulate air. It is widely used in homes, classrooms, offices, shops, hospitals, hotels, etc. A traditional fan is mainly composed of parts such as a head, blades, a mesh cover, and a control device. The head of a traditional fan includes a motor, front and rear mesh covers, and a shaking air supply mechanism.

[0003] Currently, most of the floor-standing electric fans on the market can only realize the rotation of the fan blades at the head and the left and right swing of the head when working, and the functions are relatively simple. In addition, after using the electric fan in the summer every year, the floor-standing electric fan needs to be cleaned and placed in a storage place. Since traditional electric fans have a large diameter and height, they occupy a large storage space when the electric fan is not in use. Summary of the invention

[0004] In view of the above situation, the present invention provides a floor-standing circulation fan, which is disassembled into a fan head, a telescopic rod component and a fan base that can be assembled and electrically connected, and the swing and pitch components and the telescopic bracket component of the fan head are retracted and arranged inside the mesh cover component, so that the telescopic bracket component of the fan head can be completely retracted into the mesh cover component when not in use, so that the entire fan head forms a cylindrical shape, and the telescopic rod component can be retracted and placed in the internal storage space of the fan base, and then the fan head and the fan base 3 in the retracted state are overlapped to form an easily stored cylindrical object, which effectively solves the storage problem of traditional floor-standing electric fans and realizes a floor-standing circulation fan with novel structure, convenient storage, small storage volume, flexible conversion, and automatic pitch and swing.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a floor-standing circulation fan, comprising: a fan head, which is formed into a cylindrical shape, the fan head comprising a mesh cover assembly, a rotating motor, a fan blade, a swing-pitch assembly and a telescopic bracket assembly, the top of the telescopic bracket assembly is fixedly connected to the swing-pitch assembly, the telescopic bracket assembly comprises an upper sleeve and a lower sleeve assembled by a first positioning and adjusting mechanism, so that the upper sleeve and the lower sleeve can slide relative to each other or be positioned on the same axis; the lower sleeve is also provided with a display control assembly that is electrically connected and drives and controls the rotating motor to drive the fan blades to operate; a telescopic rod component comprises an upper telescopic rod component and a lower telescopic rod component assembled by a second positioning and adjusting mechanism, so that the upper telescopic rod component and the lower telescopic rod component can slide relative to each other or be positioned on the same axis; the telescopic rod component and the fan head are detachably connected and electrically conductive through a first plug-in conductive mechanism provided at the bottom end of the telescopic bracket assembly and the top end of the upper telescopic rod assembly, and the telescopic rod component and The fan base is electrically connected to the display control component through the first plug-in conductive mechanism; the fan base is shaped as a cylinder, and a storage space is provided inside the fan base, and the storage space includes a telescopic rod component placement position, a power adapter placement position and a remote control placement position; the telescopic rod component and the fan base are detachably connected and electrically conductive through a second plug-in conductive mechanism provided at the bottom end of the lower telescopic rod component and the top surface of the fan base, and the fan base is electrically connected to the first plug-in conductive mechanism through the second plug-in conductive mechanism; the fan base is provided with a power supply circuit board for electrically connecting to the power adapter; thereby, the floor-standing circulation fan is electrically connected to the second plug-in conductive mechanism, the first plug-in conductive mechanism and the display control component through the power supply circuit board to supply power to the display control component to drive and control the operation of the fan head; the floor-standing circulation fan stores the telescopic rod component in a folded state through the telescopic rod component placement position, and stores the power adapter and the remote control through the power adapter placement position and the remote control placement position.

[0006] In the embodiment of the floor-standing circulation fan of the present invention, the first positioning and adjusting mechanism comprises the upper sleeve, the lower sleeve and the sleeve sleeve; wherein the upper sleeve and the lower sleeve are both formed as hollow round rods, and the diameter of the upper sleeve is larger than the diameter of the lower sleeve, the top end of the upper sleeve is fixedly assembled with the swing and pitch assembly, and the upper sleeve is provided with a retracting positioning hole and an extending positioning hole on the same straight line at both ends of the rod wall; the top end rod wall of the lower sleeve is expanded to form a limiting convex portion, and the limiting convex portion is provided with a locking hole; the bottom end of the upper sleeve is fixedly mounted There is a sleeve sleeve, which is formed into a ring shape and has two opposite openings, one of which is fixedly assembled with the bottom end of the upper sleeve and has a diameter equal to the diameter of the inner wall of the bottom end of the upper sleeve, and the other opening is shrunk to form a limiting flange, and the inner diameter of the limiting flange is between the outer diameter of the lower sleeve rod wall and the outer diameter of the limiting convex portion; the upper sleeve is sleeved on the outside of the lower sleeve and is telescopically connected by the mutual abutment between the limiting convex portion and the limiting flange; thereby, the first positioning adjustment mechanism penetrates the upper sleeve through a telescopic locking screw The retractable positioning hole or the extended positioning hole of the cylinder is locked with the locking hole of the lower sleeve, so that the lower sleeve is retracted inside the upper sleeve or extended to the outside of the upper sleeve; the second positioning adjustment mechanism includes an upper telescopic rod of the upper telescopic rod assembly, a lower telescopic rod of the lower telescopic rod assembly, a ball, a button cover, a telescopic button and an elastic reset mechanism; wherein the upper telescopic rod and the lower telescopic rod are both formed as hollow round rods, and the diameter of the lower telescopic rod is larger than the diameter of the upper telescopic rod; the top end of the upper telescopic rod is detachably connected to the telescopic bracket assembly; The outer part of the rod wall of the upper telescopic rod is provided with a plurality of telescopic grooves on the same straight line; the top rod wall of the lower telescopic rod is equipped with a ball, a button cover, a telescopic button and an elastic reset mechanism, the button cover is embedded in the upper end of the lower telescopic rod, and the telescopic button is engaged with the button cover by a screw or a buckle; thereby, by pressing the telescopic button up and down, the elastic reset mechanism and the button cover are driven to pull and control the ball to retract into the telescopic button or protrude into the telescopic groove, so as to control the telescopic adjustment or positioning between the upper telescopic rod and the lower telescopic rod.

[0007] In an embodiment of a floor-standing circulation fan of the present invention, the first plug-in conductive mechanism comprises a first telescopic plug, a first female plug and a first telescopic button arranged at the bottom end of the telescopic bracket assembly, and a second telescopic plug, a first male plug and a first positioning lock buckle arranged at the top end of the upper telescopic rod assembly; wherein the first telescopic plug is fixedly connected to the bottom end of the lower sleeve by a locking means; the first female plug is fixedly arranged in the first telescopic plug and is electrically connected to the key circuit board of the display control assembly; one end of the first telescopic button is telescopically convexly arranged on the rod wall at the bottom end of the lower sleeve, and the other end is opened toward the first telescopic plug to form a first button lock buckle; the second telescopic plug is fixedly connected to the top end of the upper telescopic rod of the upper telescopic rod assembly by a locking means; the first male plug is fixedly arranged in the second telescopic plug; the first positioning lock buckle is arranged in the opening of the second telescopic plug; thereby, the telescopic rod component and the telescopic bracket assembly are inserted into the first telescopic plug through the second telescopic plug, the first positioning lock buckle is fixed with the first button lock buckle of the first telescopic button, and the telescopic bracket assembly and the telescopic rod component are fixedly connected through the first male plug The plug is plugged and conductive with the first female plug; the second plug-in conductive mechanism includes a third telescopic plug, a second telescopic button and a second female plug arranged at the bottom end of the telescopic rod component, and a fourth telescopic plug, a second male plug and a second positioning lock buckle arranged on the top surface of the fan base; wherein the third telescopic plug is fixedly connected to the bottom end of the lower telescopic rod of the lower telescopic rod assembly by locking means; the second female plug is fixedly arranged in the third telescopic plug; one end of the second telescopic button is telescopically convexly arranged on the rod wall at the bottom end of the lower telescopic rod, and the other end is opened toward the third telescopic plug to form a second button lock buckle; the fourth telescopic plug is fixedly connected to the fourth telescopic plug installation position of the base lower cover of the fan base by locking means; the second male plug is fixedly arranged in the fourth telescopic plug; the second positioning lock buckle is arranged in the opening of the fourth telescopic plug; thereby, the fan base and the telescopic rod component are inserted into the third telescopic plug through the fourth telescopic plug, the second positioning lock buckle is fixed with the second button lock buckle of the second telescopic button, and the fan base and the telescopic rod component are plugged and conductively connected through the second male plug and the second female plug.

[0008] In an embodiment of a floor-standing circulation fan of the present invention, the mesh cover assembly is composed of a cylindrical head bracket and a mesh-shaped air outlet mesh cover; wherein the rear half of the head bracket is formed as an air inlet grid, and the front half is formed as a head outer cover, and the air inlet grid has radial ribs constituting the rear end of the head bracket and axial ribs connected between the radial ribs and the head outer cover; the center position of the radial ribs is recessed from the outside to the inside to form a swing-pitch assembly mounting position, and the swing-pitch assembly mounting position extends downward to form a telescopic bracket assembly mounting position, and the swing-pitch assembly mounting position is a cylindrical space and a mounting opening is opened in the center for installing the rotating motor, the fan blades and the swing-pitch assembly, and the telescopic bracket assembly mounting position is a semi-cylindrical space for the telescopic bracket assembly The parts are stored and installed at the bottom of the swing and pitch components; a pair of air outlet guide bosses and air outlet positioning ribs are arranged at intervals on the inner side surface of the peripheral edge of the head outer cover, the air outlet guide bosses are formed as cylindrical protrusions, and the air outlet positioning ribs are formed as semi-cylindrical protrusions; the air outlet mesh cover has an air outlet grid composed of radial ribs, and an air outlet circumferential ring protruding from the circumference of the air outlet mesh cover, and a pair of air outlet guide grooves and air outlet engaging ribs are arranged at intervals on the air outlet circumferential ring; the number and position of the air outlet guide grooves and the air outlet engaging ribs correspond to the air outlet guide bosses and the air outlet positioning ribs; the air outlet guide bosses are placed in and slide along the air outlet guide grooves until the air outlet positioning ribs press against and cross the air outlet engaging ribs and stop, so as to rotatably assemble the head bracket and the air outlet mesh cover.

[0009] In the embodiment of the floor circulation fan of the present invention, the swing-pitch assembly comprises a pitch module, a swing module and a main control module; the rotating motor and the pitch module and the swing module are mounted on the head bracket through an integrated shell cover assembly; the integrated shell cover assembly comprises an upper motor bracket, an upper motor cover, a lower motor bracket, a lower motor cover and a motor cover; the upper motor bracket is a U-shaped metal plate member, having a vertical plate and two horizontal plates extending on opposite sides of the vertical plate; the lower motor bracket is a U-shaped metal plate member, having a flat plate and two vertical plates extending on opposite sides of the flat plate; the ends of the two horizontal plates of the upper motor bracket and the ends of the two vertical plates of the lower motor bracket are spaced apart in a horizontally and vertically overlapping manner in space; wherein the rotating motor is mounted on the U of the vertical plate The motor cover is arranged on the outer side of the U-shaped plate and covers the motor cover; the pitch module is installed between the two horizontal plates and the two vertical plates and covers the upper motor cover; the swing module is installed on the top and bottom surfaces of the flat plate and covers the lower motor cover; the main control module includes a main control mounting plate and a main control circuit board, the main control mounting plate is installed on the U-shaped inner side surface of the vertical plate, and the main control circuit board is installed on the upper motor bracket by being assembled on the mounting plate; the main control module is covered inside the upper motor cover; thereby, the swing-pitch assembly is integrated and installed in the swing-pitch assembly mounting position of the mesh cover assembly through the integrated shell cover assembly, and the rotating motor passes through the mounting opening of the swing-pitch assembly mounting position to the inside of the mesh cover assembly to be assembled with the fan blades.

[0010] In the embodiment of the floor circulation fan of the present invention, the two horizontal plates of the upper motor bracket are defined as the first horizontal plate and the second horizontal plate, and the two vertical plates of the lower motor bracket are defined as the first vertical plate and the second vertical plate; the pitch module includes a pitch motor, a pitch driving wheel, a pitch driven wheel, a shaft cover, a shaft and a friction ring; wherein the pitch motor is fixedly mounted on the U-shaped inner side surface of the first horizontal plate by locking means, and the output shaft of the pitch motor passes through the first horizontal plate to install and drive the pitch driving wheel to operate; the pitch driven wheel is installed on the U-shaped inner side surface of the first vertical plate and meshed with the pitch driving wheel; the shaft cover is fixedly mounted on the U-shaped outer side surface of the second horizontal plate by means of locking means; one end of the shaft is fixedly arranged on the U-shaped inner side surface of the second vertical plate, and the other end is passed through the inside of the shaft cover, and the friction ring is assembled between the outside of the other end of the shaft and the inner circumferential surface of the shaft cover; thereby, the pitch motor drives the pitch driving wheel to rotate, and the pitch driven wheel is driven by the pitch driving wheel, thereby pulling and linking the fan head to make a pitch movement.

[0011] In an embodiment of a floor-standing circulation fan of the present invention, the swing module includes a swing motor, a swing driving wheel and a swing driven wheel; wherein the swing motor is fixedly mounted on the top surface of the flat plate by locking means, and the output shaft of the swing motor passes through the flat plate to install and drive the swing driving wheel to operate; the swing driven wheel is fixedly mounted on the top of the telescopic bracket assembly and meshes with the swing driving wheel; thereby, the swing motor drives the swing driving wheel to rotate, and the swing driven wheel is driven by the driving force of the swing driving wheel, thereby pulling and linking the fan head to perform a swinging motion.

[0012] Among them, in the embodiment of the floor circulation fan of the present invention, an assembly opening is opened on the lower sleeve; the display control component includes a display cover, a key circuit board and a key, wherein the display cover is covered on the assembly opening, and is provided with a display area and through holes corresponding to the number of keys; the key circuit board is assembled on the rear side of the display cover and is located inside the lower sleeve, and a digital display light and a button are electrically connected to the key circuit board; the digital display light is assembled on the key circuit board corresponding to the display area of ​​the display cover; the button is arranged on the key circuit board corresponding to the through hole position of the display cover; the button is protrudingly inserted into the through hole of the display cover and is connected to the button of the key circuit board.

[0013] Among them, in the embodiment of the floor circulation fan of the present invention, the swing pitch assembly includes a pitch module, a swing module and a main control module, the pitch module includes a pitch motor, the swing module includes a swing motor, and the main control module includes a main control circuit board, a wifi module and a Bluetooth module; the display control assembly of the telescopic bracket assembly includes a key circuit board; the main control circuit board is electrically connected and communicated with the rotating motor, the pitch motor, the swing motor, the wifi module, the Bluetooth module, the key circuit board and the power circuit board through cables.

[0014] In an embodiment of a floor-standing circulation fan of the present invention, the fan base comprises an upper base cover and a lower base cover which are assembled together to form a cylinder; wherein a fourth telescopic plug installation position is provided at the central portion of the lower base cover for installing the fourth telescopic plug and the second male plug of the second plug-in conductive mechanism; the lower base cover is provided with a power circuit board installation position at its periphery for installing the power circuit board; the lower base cover is provided with a storage structure on one side of the second plug-in conductive mechanism, the storage structure comprises a placement position for the telescopic rod component, a placement position for the power adapter and a placement position for the remote control for storing the telescopic rod component, the power adapter and the remote control in a folded state; a through hole is provided at the upper base cover corresponding to the second plug-in conductive mechanism for the second plug-in conductive mechanism to be inserted and exposed on the top surface of the fan base; a flip cover is provided on one side of the through hole corresponding to the storage structure, the flip cover is pivotally connected to the upper base cover on the side adjacent to the through hole, and a flip cover lock is provided on the side away from the through hole.

[0015] The present invention adopts the above technical solution, so it has the following beneficial effects:

[0016] (1) The floor-standing circulation fan can realize the functions of a floor-standing fan when working, and can realize functions such as wind speed adjustment, up and down pitch, left and right swing, and status display.

[0017] (2) When the floor-standing circulation fan needs to be stored, first separate the fan head, telescopic rod component and fan base, push the lower sleeve of the telescopic bracket assembly inward, and then retract the upper telescopic rod assembly to the innermost part; then place the telescopic rod component, power adapter and remote control in the base, and place the fan head on top of the fan base. The floor-standing circulation fan is stored. After storage, the floor-standing circulation fan is cylindrical, which greatly reduces the storage space.

[0018] (3) When the height of the air outlet of the fan head needs to be adjusted, press the telescopic button between the upper telescopic component and the lower telescopic component to make the upper telescopic component slide up and down along the lower telescopic component. Release the telescopic button to complete the height adjustment of the smart fan.

[0019] (4) The floor-standing circulation fan can achieve multi-angle swing up and down, left and right. The up and down pitch and left and right swing can swing up and down and left and right in a cycle within the set range according to user needs, and return to the middle position when the machine is shut down normally.

[0020] (5) The button circuit board on the telescopic bracket assembly can display information such as the current time, fan gear position, swing angle, etc., thereby realizing real-time display of floor-standing circulation fan information.

[0021] (6) The rotating motor of the floor-standing circulation fan is located inside the mesh cover assembly, which is different from the traditional fan motor being located outside the mesh cover assembly.

[0022] (7) The floor-standing circulation fan is powered by a low voltage, which is a safe voltage. The power cord is led out from the fan base, and the wiring is simple.

[0023] (8) The floor-standing circulation fan can be controlled by voice, Bluetooth, APP, etc., realizing intelligent control of the floor-standing circulation fan.

[0024] These and other objects, features and advantages of the present invention will be more fully reflected in the following detailed description and claims, and may be achieved by the means, devices and combinations thereof particularly pointed out in the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a three-dimensional schematic diagram of the appearance of a telescopic bracket assembly and a telescopic rod component of a floor-standing circulation fan in a fully extended state.

[0026] Figure 2 It is a rear-view stereoscopic appearance schematic diagram of a floor-standing circulation fan of the present invention, in which the fan head of the telescopic bracket assembly is in a folded state.

[0027] Figure 3 The present invention is a front view schematic diagram of the fan head of the floor-standing circulation fan in the extended state of the telescopic bracket assembly.

[0028] Figure 4 The present invention Figure 3 AA section line cross-sectional view.

[0029] Figure 5 The present invention is a schematic diagram of the front three-dimensional appearance of the head bracket of the floor-standing circulation fan.

[0030] Figure 6 The present invention is a schematic diagram of the rear view of the three-dimensional appearance of the air outlet mesh cover of the floor-standing circulation fan.

[0031] Figure 7 The present invention is a schematic diagram of the front three-dimensional appearance of the swing and pitch components of the floor-standing circulation fan.

[0032] Figure 8 The present invention is a schematic diagram of a rear-view stereoscopic appearance of a swing and pitch assembly of a floor-standing circulation fan without an upper motor cover.

[0033] Fig. 9 The present invention is a schematic diagram of the rear view of the swing module of the floor-standing circulation fan of the present invention.

[0034] Fig.10 The present invention is a front view schematic diagram of the telescopic bracket assembly of the floor-standing circulation fan in an extended state.

[0035] Fig.11 The present invention Fig.10 BB section line cross-sectional view.

[0036] Fig.12 The present invention is a schematic rear-view stereoscopic appearance diagram of a telescopic bracket assembly of a floor-standing circulation fan in an extended state.

[0037] Fig.13 The present invention is a three-dimensional schematic diagram of the appearance of a telescopic rod component of a floor-standing circulation fan in an extended state.

[0038] Fig.14 The present invention is a top view schematic diagram of the telescopic rod component of the floor-standing circulation fan in an extended state.

[0039] Fig.15 The present invention Fig.14 Schematic diagram of the CC section line.

[0040] Fig.16 The present invention is a schematic top view of a three-dimensional appearance of a fan base of a floor-standing circulation fan.

[0041] Fig.17 The present invention is a top view of a three-dimensional appearance of a fan base of a floor-standing circulation fan in a state where a flap is opened.

[0042] Fig.18 It is a top view of the three-dimensional appearance of the fan base of the floor-standing circulation fan of the present invention without the base cover.

[0043] Fig.19 It is a three-dimensional appearance schematic diagram of the floor-standing circulation fan of the present invention when the telescopic bracket assembly is in an extended state and the telescopic rod component is in a folded state.

[0044] Fig. 20 It is a three-dimensional appearance schematic diagram of the floor-standing circulation fan of the present invention in a stored state.

[0045] Fig.21 It is a schematic diagram of the electrical connection structure of the main control circuit board and other components of the floor-standing circulation fan of the present invention.

[0046] The corresponding relationship between the reference numerals and the components is as follows:

[0047] Fan head 1; mesh assembly 11; head bracket 111; head outer cover 1111; air inlet grid 1112; swing pitch assembly installation position 1113; telescopic bracket assembly installation position 1114; air outlet guide convex column 1115; air outlet positioning convex rib 1116; air outlet locking screw hole 1117; installation port 1118; air outlet mesh 112; air outlet grid 1121; air outlet circumferential ring 1122; air outlet guide groove 1123; air outlet engaging convex rib 1124; air outlet screw hole 1125; rotating motor 113; fan blade 114; swing pitch assembly 12; pitch module 121; motor cover 1211; upper motor bracket 1212; pitch motor 1213; pitch driving wheel 1214; pitch driven wheel 1215; shaft cover 1216; shaft 1217; friction ring 1218; upper motor cover 1219; swing module 122; lower motor bracket 1221; swing motor 1222; swing driving wheel 1223; swing driven wheel 1224; lower motor cover 1225; left decorative strip 1226; right decorative strip 1227; main control module 123; main control mounting plate 1231; main control circuit board 1232; wifi module 1233; bluetooth module 1234; vertical plate 124; horizontal plate 1241; flat plate 125; vertical plate 1251; telescopic bracket assembly 13; upper sleeve 131; folding positioning hole 1311; extension Positioning hole 1312; assembly hole 1313; lower sleeve 132; limiting convex part 1321; locking hole 1322; assembly port 1323; display cover 133; sleeve sheath 134; limiting flange 1341; telescopic locking screw 135; key circuit board 136; digital display light 1361; button 1362; button 137; first telescopic plug 138; first female plug 139; first telescopic button 130; first button lock 1301; telescopic rod component 2; upper telescopic rod assembly 21; upper telescopic rod 211; telescopic groove 2111; second telescopic plug 212; first positioning lock 2121; first male plug 213; telescopic friction ring 214 ; Lower telescopic rod assembly 22; lower telescopic rod 221; telescopic rod sleeve 222; ball bearing 223; button sleeve 224; telescopic button 225; third telescopic plug 226; second telescopic button 227; second button lock 2271; second female plug 228; fan base 3; base upper cover 31; base lower cover 32; fourth telescopic plug installation position 321; power circuit board installation position 322; telescopic rod component placement position 323; power adapter placement position 324; remote control placement position 325; flip cover 33; flip cover lock 34; fourth telescopic plug 35; second positioning lock 351; second male plug 36; power adapter 37; remote control 38; power circuit board 39. DETAILED DESCRIPTION

[0048] Detailed specific embodiments of the present invention will be disclosed herein. However, it should be understood that the disclosed embodiments are only typical examples of the present invention, and the present invention can be implemented in a variety of alternative forms. Therefore, the specific structural and functional details disclosed herein are not restrictive, but are only based on the claims as a representative principle to illustrate different embodiments to those skilled in the art.

[0049] To facilitate understanding of the present invention, the following Figures 1 to 21 And examples are described.

[0050] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Fig.19 , Fig. 20 The present invention provides a floor-standing circulation fan, which includes a detachable and assembled fan head 1, a telescopic rod component 2 and a fan base 3. Among them:

[0051] The fan head 1 is formed into a cylindrical shape, and includes a mesh cover assembly 11, a rotating motor 113 assembled and mounted on the mesh cover assembly 11, a fan blade 114, a swing and pitch assembly 12, and a telescopic support assembly 13. The top of the telescopic support assembly 13 is fixedly connected to the swing and pitch assembly 12. The telescopic support assembly 13 includes an upper sleeve 131 and a lower sleeve 132 assembled by a first positioning and adjusting mechanism, so that the upper sleeve 131 and the lower sleeve 132 slide relative to each other or are positioned on the same axis; the lower sleeve 132 is also provided with a display control assembly that is electrically connected and drives and controls the rotating motor 113 to work and drive the fan blade 114 to operate. The display control assembly can also control the operation of the floor-standing circulation fan and display the current operation information of the floor-standing circulation fan.

[0052] The telescopic rod component can be extended to a certain length, one end of which can be inserted into the fan base 3, and the other end can be inserted into the fan head 1. On the one hand, it plays a role in supporting the fan head 1, and on the other hand, it can play a role in adjusting the height of the floor-standing circulation fan. Specifically, the telescopic rod component 2 includes an upper telescopic rod assembly 21 and a lower telescopic rod assembly 22 connected by a second positioning and adjustment mechanism, so that the upper telescopic rod assembly 21 and the lower telescopic rod assembly 22 can slide relative to each other or be positioned on the same axis; the telescopic rod component 2 and the fan head 1 are detachably connected and electrically conductive through a first plug-in conductive mechanism provided at the bottom end of the telescopic bracket assembly 13 and the top end of the upper telescopic rod assembly 21, and the telescopic rod component 2 is electrically connected to the display control assembly through the first plug-in conductive mechanism.

[0053] The fan base 3 is shaped as a cylinder and is placed on the ground to support the entire floor-standing circulation fan. The fan base 3 is provided with a storage space inside, and the storage space includes a telescopic rod component placement position 323, a power adapter placement position 324 and a remote control placement position 325; the telescopic rod component 2 and the fan base 3 are detachably connected and electrically conductive via a second plug-in conductive mechanism provided at the bottom end of the lower telescopic rod assembly 22 and the top surface of the fan base 3, and the fan base 3 is electrically connected to the first plug-in conductive mechanism via the second plug-in conductive mechanism; the fan base 3 is provided with a power circuit board 39 for electrically connecting to the power adapter 37.

[0054] In this way, the floor-standing circulation fan is electrically connected to the second plug-in conductive mechanism, the first plug-in conductive mechanism and the display control component through the power circuit board 39 to supply power to the display control component to drive and control the operation of the fan head 1; the floor-standing circulation fan receives the retractable rod component 2 in the retracted state through the retractable rod component placement position 323, and receives the power adapter 37 and the remote control 38 through the power adapter placement position 324 and the remote control placement position 325. The present invention achieves the coordinated movement of the floor-standing circulation fan through the coordinated working movement of the above components.

[0055] Specifically, Figures 2 to 6 As shown, the fan head 1 mesh cover assembly 11 is composed of a cylindrical head support 111 and a mesh-shaped air outlet mesh cover 112; wherein:

[0056] The rear half of the head support 111 is formed as an air inlet grid 1112, and the front half is formed as a head outer cover 1111, which supports the entire mesh cover assembly 11 and provides installation positions for other parts. The air inlet grid 1112 has radial ribs constituting the rear end of the head support 111 and axial ribs connected between the radial ribs and the head outer cover 1111; the center position of the radial ribs is recessed from the outside to the inside to form a rocking and pitching assembly installation position 1113, and the rocking and pitching assembly installation position 1113 extends downward to form a telescopic support assembly installation position 1114. The swing-pitch assembly mounting position 1113 is a cylindrical space and a mounting opening 1118 is provided in the center for mounting the rotating motor 113, the fan blades 114 and the swing-pitch assembly 12. The telescopic bracket assembly mounting position 1114 is a semi-cylindrical space for accommodating and mounting the telescopic bracket assembly 13 on the bottom of the swing-pitch assembly 12. Pairs of air outlet guide bosses 1115 and air outlet positioning ribs 1116 are provided on the inner side surface of the periphery of the head outer cover 1111 at intervals. The air outlet guide bosses 1115 are formed as cylindrical protrusions, and the air outlet positioning ribs 1116 are formed as semi-cylindrical protrusions.

[0057] The air outlet mesh cover 112 has an air outlet grid 1121 formed of radial ribs, and an air outlet circumferential ring 1122 protruding from the air outlet mesh cover 112 in the circumferential direction. The air outlet circumferential ring 1122 is provided with a pair of air outlet guide grooves 1123 and air outlet engaging ribs 1124 at intervals. The number and position of the air outlet guide grooves 1123 and the air outlet engaging ribs 1124 correspond to the air outlet guide convex column 1115 and the air outlet positioning rib 1116. Therefore, the air outlet guide convex column 1115 is placed in the air outlet guide groove 1123 and slides along the air outlet guide groove 1123 until the air outlet positioning rib 1116 presses against and passes over the air outlet engaging rib 1124, so as to rotate and assemble the head bracket 111 and the air outlet mesh cover 112.

[0058] In the embodiment of the present invention, the outer diameter of the air outlet circumferential ring 1122 is smaller than the inner diameter of the head outer cover 1111 , so that the head support 111 and the air outlet mesh cover 112 are aligned, and the head outer cover 1111 is placed on the outer circumferential surface of the air outlet circumferential ring 1122 .

[0059] In the embodiment of the present invention, the periphery of the head outer cover 1111 is further provided with an air outlet locking hole 1117 at a position corresponding to the telescopic bracket assembly installation position 1114; the air outlet mesh cover 112 is provided with an air outlet screw hole 1125 corresponding to the air outlet locking hole 1117, and the air outlet locking hole 1117 and the air outlet screw hole 1125 are aligned when the head bracket 111 and the air outlet mesh cover 112 are tightened, so that the screw can be inserted into the air outlet locking hole 1117 and then screwed with the air outlet screw hole 1125.

[0060] In the embodiment of the present invention, the air inlet grid 1112 is composed of different horizontal and vertical ribs, and can form a mesh structure through a specific arrangement. The specific form is not limited in this patent. The air inlet grid 1112 is used to allow external air to enter the fan head 1, and the mesh structure allows more air to smoothly enter the air inlet grid 1112 from the outside.

[0061] In the embodiment of the present invention, the air outlet grid 1121 is composed of different horizontal and vertical ribs, and can form a mesh structure through a specific arrangement. The specific shape is not limited in this patent. The air outlet grid 1121 is used to allow the wind blown by the fan blades 114 to blow to the external space along the air outlet grid 1121. At the same time, the mesh structure minimizes the loss of the blown wind in the air outlet grid 1121.

[0062] In an embodiment of the present invention, the telescopic bracket assembly mounting position 1114 is provided at the lower end of the head bracket 111, and is used for the embedded assembly of the telescopic bracket assembly 13. The air outlet guide boss 1115 is a cylindrical protrusion, evenly distributed on one side around the head bracket 111, with an unlimited number, and its function is to provide a guide when the air mesh cover 112 is installed. The air outlet positioning rib 1116 is a semi-cylindrical protrusion, with an unlimited number, and its function is to provide a snap-fit ​​positioning function for the air mesh cover 112 when it is installed in place. The air outlet locking screw hole 1117 is provided at the lower end of the head bracket 111, and is used to bolt the air outlet mesh cover 112 to prevent the air outlet mesh cover 112 from shaking after assembly.

[0063] like Figure 5 , Figure 6 As shown, the air outlet guide groove 1123 is provided on the air outlet circumferential ring 1122. The air outlet guide groove 1123 is formed as a guide groove, and the number thereof is not limited, and is consistent with the number of the air outlet guide protrusions 1115. When the air outlet mesh cover 112 is assembled with the head support 111, the air outlet guide protrusions 1115 on the circumference of the head support 111 slide along the air outlet guide groove 1123, so that the air outlet mesh cover 112 is screwed into the head support 111. Figure 5 , Figure 6 As shown, the air outlet engaging ribs 1124 are also arranged on the air outlet circumferential ring 1122, and are semi-cylindrical protrusions, with an unlimited number, and are consistent with the number of the air outlet positioning ribs 1116. When the air outlet mesh cover 112 is assembled with the head bracket 111, when the air outlet mesh cover 112 is ready to reach the tightening position, the air outlet engaging ribs 1124 collide with the air outlet positioning ribs 1116, and then the air outlet engaging ribs 1124 pass over the air outlet positioning ribs 1116, so that the air outlet mesh cover 112 reaches the tightening position, and the air outlet mesh cover 112 is engaged in the head bracket 111, playing a role of positioning engagement. There are thread features in the air outlet screw hole 1125. When the air outlet mesh cover 112 is tightened to the assembly position of the head bracket 111, the air outlet screw hole 1125 is screwed to fix the air outlet mesh cover 112.

[0064] Specifically, Figure 2 , Figure 4 , Figure 7 , Figure 8 and Fig. 9As shown, the rocking-pitching assembly 12 includes a pitch module 121, a rocking module 122 and a main control module 123; the rotating motor 113 and the pitch module 121 and the rocking module 122 are installed on the head bracket 111 through an integrated shell cover assembly; the integrated shell cover assembly includes an upper motor bracket 1212, an upper motor cover 1219, a lower motor bracket 1221, a lower motor cover 1225 and a motor cover plate 1211. Among them, the upper motor bracket 1212 is a U-shaped metal plate, having a vertical plate 124 and two horizontal plates 1241 extending on opposite sides of the vertical plate 124; the lower motor bracket 1221 is a U-shaped metal plate, having a flat plate 125 and two vertical plates 1251 extending on opposite sides of the flat plate 125; the ends of the two horizontal plates 1241 of the upper motor bracket 1212 and the ends of the two vertical plates 1251 of the lower motor bracket 1221 are spaced apart and overlapped horizontally and vertically in space.

[0065] like Figure 4 , Figures 7 to 9 As shown, the rotating motor 113 is installed on the U-shaped outer side of the vertical plate 124 and is covered with the motor cover 1211; the pitch module 121 is installed between the two horizontal plates 1241 and the two vertical plates 1251 and is covered with the upper motor cover 1219; the swing module 122 is installed on the top and bottom surfaces of the flat plate 125 and is covered with the lower motor cover 1225; the main control module 123 includes a main control mounting plate 1231 and a main control circuit board 1232, the main control mounting plate 1231 is installed on the U-shaped inner side of the vertical plate 124, and the main control circuit board 1232 is installed on the upper motor bracket 1212 by being assembled on the mounting plate 1231; the main control module 123 is covered inside the upper motor cover 1219.

[0066] Thereby, the roll-pitch assembly 12 is integratedly installed in the roll-pitch assembly installation position 1113 of the mesh cover assembly 11 through the integrated shell cover assembly, and the rotating motor 113 passes through the installation opening 1118 of the roll-pitch assembly installation position 1113 to the interior of the mesh cover assembly 11 to be assembled with the fan blades 114.

[0067] Further, in the embodiment of the present invention, the two horizontal plates 1241 of the upper motor bracket 1212 are defined as the first horizontal plate and the second horizontal plate, and the two vertical plates 1251 of the lower motor bracket 1221 are defined as the first vertical plate and the second vertical plate; Figures 7 to 9As shown, the pitch module 121 includes a pitch motor 1213, a pitch driving wheel 1214, a pitch driven wheel 1215, a rotating shaft cover 1216, a rotating shaft 1217 and a friction ring 1218; wherein the pitch motor 1213 is fixedly mounted on the U-shaped inner side surface of the first horizontal plate 1241 by means of locking means, and the output shaft of the pitch motor 1213 passes through the first horizontal plate 1241 to install and drive the pitch driving wheel 1214 to operate; the pitch driven wheel 1215 is mounted on the U-shaped inner side surface of the first vertical plate 1251 and meshes with the pitch driving wheel 1214; The shaft cover 1216 is fixedly mounted on the U-shaped outer side surface of the second horizontal plate 1241 by means of locking means; one end of the shaft 1217 is fixedly mounted on the U-shaped inner side surface of the second vertical plate 1251, and the other end is passed through the interior of the shaft cover 1216; the friction ring 1218 is assembled between the outside of the other end of the shaft 1217 and the inner circumferential surface of the shaft cover 1216; thereby, the pitch motor 1213 drives the pitch driving wheel 1214 to rotate, and the pitch driven wheel 1215 is driven by the pitch driving wheel 1214, thereby pulling and linking the fan head 1 to perform pitch movement.

[0068] Furthermore, in the embodiment of the present invention, the swing module 122 includes a swing motor 1222, a swing driving wheel 1223 and a swing driven wheel 1224; Figures 7 to 9 As shown, the swing motor 1222 is fixedly installed on the top surface of the flat plate 125 by locking means, and the output shaft of the swing motor 1222 passes through the flat plate 125 to install and drive the swing driving wheel 1223 to operate; the swing driven wheel 1224 is fixedly installed on the top of the telescopic bracket assembly 13 and meshes with the swing driving wheel 1223; thereby, the swing motor 1222 drives the swing driving wheel 1223 to rotate, and the swing driven wheel 1224 is driven by the swing driving wheel 1223, thereby pulling and linking the fan head 1 to make a swinging motion.

[0069] In an embodiment of the present invention, the bottom surface of the lower motor bracket 1221 is provided with a first decorative strip 1226 and a second decorative strip 1227 which are symmetrical in shape. The first decorative strip 1226 and the second decorative strip 1227 are combined with the lower motor cover 1225 and the lower motor bracket 1221 through a snap-fit ​​structure to play a decorative and aesthetic role.

[0070] In the embodiment of the present invention, the rotating motor 113, the pitching motor 1213, and the swinging motor 1222 may be, but are not limited to, a DC motor, an AC motor, or a stepping motor.

[0071] like Figure 4 , Figure 7 , Figure 8 As shown, the rotary motor 113 is installed in the swing-pitch assembly 12. When the floor-standing circulation fan is working, the floor-standing circulation fan main control board controls the output shaft of the rotary motor 113 to rotate at different speeds according to different gears.

[0072] like Figure 3 , Figure 4 As shown, the fan blades 114 are mounted on the output shaft of the rotating motor 113, so that the rotation of the output shaft of the rotating motor 113 drives the rotation of the fan blades 114. The rotation of the fan blades 114 can make the air coming in from the head bracket 111 pass through the fan blades 114, and then the wind speed and air volume are increased by the rotation of the fan blades 114, and then blow forward from the air outlet mesh cover 112 to the outside. In the embodiment of the present invention, the number of blades of the fan blades 114 can be but not limited to three, four, five, six, or eight, which can be adjusted according to actual needs.

[0073] The first positioning and adjusting mechanism of the floor-standing circulation fan of the present invention is as follows Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown; wherein, the upper sleeve 131 and the lower sleeve 132 are both formed as hollow round rods, and the diameter of the upper sleeve 131 is larger than the diameter of the lower sleeve 132, the top end of the upper sleeve 131 is fixedly assembled with the roll and pitch assembly 12, and the upper sleeve 131 is provided with a folding positioning hole 1311 and an extension positioning hole 1312 on the same straight line at both ends of the rod wall; the top end rod wall of the lower sleeve 132 is expanded to form a limiting protrusion 1321, and the limiting protrusion 1321 is provided with a locking hole 1322.

[0074] A sleeve sleeve 134 is sleeved on the bottom end of the upper sleeve 131, and the sleeve sleeve 134 is formed into a ring shape with two opposite openings, one of which is fixedly assembled with the bottom end of the upper sleeve 131 and has a diameter equal to the diameter of the inner wall of the bottom end of the upper sleeve 131, and the other opening is contracted to form a limiting flange 1341, and the inner diameter of the limiting flange 1341 is between the outer diameter of the rod wall of the lower sleeve 132 and the outer diameter of the limiting protrusion 1321; the upper sleeve 131 is sleeved on the outside of the lower sleeve 132 and is telescopically connected by the mutual abutment between the limiting protrusion 1321 and the limiting flange 1341.

[0075] In this way, the first positioning adjustment mechanism passes through the retractable positioning hole 1311 or the extended positioning hole 1312 of the upper sleeve 131 through a telescopic locking screw 135, so as to lock with the locking hole 1322 of the lower sleeve 132, so that the lower sleeve 132 is retracted into the upper sleeve 131 or extended to the outside of the upper sleeve 131.

[0076] In the embodiment of the present invention, the top end surface of the upper sleeve 131 is closed and has two assembly holes 1313 for screws to penetrate and lock with the rocking driven wheel 1224 and the lower motor cover 1225 of the rocking and pitching assembly 12 .

[0077] The second positioning and adjusting mechanism of the floor-standing circulation fan of the present invention is as follows Fig.13 , Fig.14 , Fig.15 As shown; wherein, the upper telescopic rod 211 of the upper telescopic rod assembly 21 and the lower telescopic rod 221 of the lower telescopic rod assembly 22 are both formed as hollow round rods, and the diameter of the lower telescopic rod 221 is larger than the diameter of the upper telescopic rod 211; the top end of the upper telescopic rod 211 is detachably connected to the telescopic bracket assembly 13; a plurality of telescopic grooves 2111 are provided on the outside of the rod wall of the upper telescopic rod 211 on the same straight line. The top rod wall of the lower telescopic rod 221 is embedded with a ball 223, a button cover 224, a telescopic button 225 and an elastic reset mechanism (not shown in the figure). The button 224 is embedded in the upper end of the lower telescopic rod 221. The telescopic button 225 is engaged with the button cover 224 by screws or buckles. The operator presses the telescopic button 225 up and down to drive the elastic reset mechanism and the button cover 224 to pull and control the ball 223 to retract into the telescopic button 225 or protrude into the telescopic groove 2111, so as to control the telescopic adjustment or positioning between the upper telescopic rod 211 and the lower telescopic rod 221.

[0078] In the embodiment of the present invention, the button cover 224, the ball 223, the telescopic button 225, the elastic reset mechanism and the control traction structure thereof are commonly used means in the prior art, and thus will not be described in detail.

[0079] In the embodiment of the present invention, Fig.13 , Fig.15 The upper telescopic rod assembly 21 also includes a telescopic friction ring 214 provided at the bottom end of the upper telescopic rod 211, and the lower telescopic rod assembly 22 also includes a telescopic rod sleeve 222 provided at the top end of the lower telescopic rod 221; wherein the telescopic friction ring 214 is fixedly assembled at the bottom end of the upper telescopic rod 211 by means of locking means, and is slidably and tightly matched with the inner wall of the lower telescopic rod 221; the telescopic rod sleeve 222 is a hollow circular kit, which is assembled at the outside of the bottom end of the upper telescopic rod 211 and the inside of the top end of the lower telescopic rod 221; the lower telescopic rod 221 is sleeved on the outside of the upper telescopic rod 211 and is telescopically connected through the mutual abutment between the telescopic rod sleeve 222 and the telescopic friction ring 214.

[0080] Furthermore, the telescopic friction ring 214 is annular and is fixedly assembled on the lower end of the upper telescopic rod 211 by screws. When the upper telescopic rod 211 slides on the lower telescopic rod 221, the friction between the upper telescopic rod 211 and the lower telescopic rod 221 can be increased, so that the upper telescopic rod 211 can slide slowly inside the lower telescopic rod 221.

[0081] The first plug-in conductive mechanism of the floor-standing circulation fan of the present invention is as follows Figure 4 , Fig.11 , Fig.13 , Fig.15 As shown; wherein, the first plug-in conductive mechanism includes a first telescopic plug 138, a first female plug 139 and a first telescopic button 130 arranged at the bottom end of the telescopic bracket assembly 13, and a second telescopic plug 212, a first male plug 213 and a first positioning lock 2121 arranged at the top end of the upper telescopic rod assembly 21.

[0082] The first telescopic plug 138 is fixedly connected to the bottom end of the lower sleeve 132 by means of locking; the first female plug 139 is fixedly arranged in the first telescopic plug 138 and is electrically connected to the key circuit board 136 of the display control component; one end of the first telescopic button 130 is telescopically protruded on the rod wall at the bottom end of the lower sleeve 132, and the other end is opened toward the first telescopic plug 138 to form a first button lock 1301. The second telescopic plug 212 is fixedly connected to the top end of the upper telescopic rod 211 of the upper telescopic rod assembly 21 by means of locking; the first male plug 213 is fixedly arranged in the second telescopic plug 212; and the first positioning lock 2121 is arranged in the opening of the second telescopic plug 212.

[0083] Thereby, the telescopic rod component 2 and the telescopic bracket assembly 13 are inserted into the first telescopic plug 138 through the second telescopic plug 212, the first positioning lock 2121 is snap-fastened with the first button lock 1301 of the first telescopic button 130, and the telescopic bracket assembly 13 and the telescopic rod component 2 are connected and conductively connected through the first male plug 213 and the first female plug 139.

[0084] In the embodiment of the present invention, Figure 4 The first plug-in conductive mechanism includes two first female plugs 139, one of which is disposed in the first telescopic plug 138, and the other first female plug 139 is disposed on the rod wall of the lower sleeve 132, for being directly electrically connected to the power adapter 37 to supply power to the key circuit board 136; more specifically, as Figure 4 , Fig.12A through hole is provided at the lower end of the lower sleeve 132, and the first female plug 139 is welded on the key circuit board 136 and exposed in the through hole at the lower end of the lower sleeve 132. After the plug of the external power adapter is inserted into the first female plug 139, the key circuit board 136 and the main control circuit board 1232 can be powered.

[0085] There are three embodiments for setting the first female plug 139 of the floor-standing circulation fan of the present invention. Fig.10 , Fig.11 , through the first telescopic plug 138 only provided on the lower end surface of the lower sleeve 132, used to connect with the telescopic rod component 2 and to be electrically connected with the power supply at the bottom of the floor circulation fan, or, as Fig.12 , which is only provided at the lower end of the lower sleeve 132 and exposed from the through hole on the peripheral wall of the lower sleeve 132, so as to be directly electrically connected to the power adapter for power supply; or, Figure 3 , Figure 4 , and the two aforementioned first female plugs 139 are provided at the same time to better meet the usage requirements of different users.

[0086] The second plug-in conductive mechanism of the floor-standing circulation fan of the present invention is as follows Fig.15 , Fig.16 , Fig.17 , Fig.18 As shown; wherein, the second plug-in conductive mechanism includes a third telescopic plug 226, a second telescopic button 227 and a second female plug 228 arranged at the bottom end of the telescopic rod component 2, and a fourth telescopic plug 35, a second male plug 36 and a second positioning lock 351 arranged on the top surface of the fan base 3.

[0087] Specifically, the third telescopic plug 226 is fixedly connected to the bottom end of the lower telescopic rod 221 of the lower telescopic rod assembly 22 by means of locking; the second female plug 228 is fixedly arranged in the third telescopic plug 226; one end of the second telescopic button 227 is telescopically protruded on the rod wall at the bottom end of the lower telescopic rod 221, and the other end is opened toward the third telescopic plug 226 to form a second button lock 2271. The fourth telescopic plug 35 is fixedly connected to the fourth telescopic plug installation position 321 of the base lower cover 32 of the fan base 3 by means of locking; the second male plug 36 is fixedly arranged in the fourth telescopic plug 35; and the second positioning lock 351 is arranged in the opening of the fourth telescopic plug 35.

[0088] Thereby, the fan base 3 and the telescopic rod component 2 are inserted into the third telescopic plug 226 through the fourth telescopic plug 35, the second positioning lock 351 is fixed with the second button lock 2271 of the second telescopic button 227 by snapping, and the fan base 3 and the telescopic rod component 2 are connected and conductively connected through the second male plug 36 and the second female plug 228.

[0089] The display control component (key circuit board 136) of the floor-standing circulation fan of the present invention is as follows: Fig.10 , Fig.11 As shown, in the embodiment of the present invention, an assembly opening 1323 is opened on the lower sleeve 132 ; the display control assembly includes a display cover plate 133 , a key circuit board 136 and a key 137 .

[0090] Among them, the display cover 133 is covered on the assembly port 1323, and is provided with a display area and through holes corresponding to the number of the buttons 137; the button circuit board 136 is assembled on the rear side of the display cover 133 and is located inside the lower sleeve 132, and the button circuit board 136 is electrically connected with a digital display light 1361 and a button 1362; the digital display light 1361 is assembled on the button circuit board 136 corresponding to the display area of ​​the display cover 133, so as to transmit the displayed information to the outside of the display cover 133; the button 1362 is arranged on the button circuit board 136 corresponding to the through hole position of the display cover 133; the button 137 is protrudingly inserted into the through hole of the display cover 133, and is connected to the button 1362 of the button circuit board 136.

[0091] In the embodiment of the present invention, there are an unlimited number of "8"-shaped display lamps on the button circuit board 136, and a working status indicator light is provided. Through cable communication with the main control circuit board 1232, the current time, temperature and humidity, fan gear, timing time and other information can be cyclically switched and displayed.

[0092] In the embodiment of the present invention, the button 137 is arranged on the button of the button circuit board 136, which is a mechanical button or a touch button. The specific implementation method is not limited and is within the protection scope of this patent. The patent of the present invention is preferably a mechanical button, which can be a power button, a wind speed adjustment button, an up and down pitch button, a left and right swing button, a timing button, and the specific button function is not limited. During the operation of the floor circulation fan, the required function can be achieved by pressing different buttons or combination buttons.

[0093] like Fig.16 , Fig.17 , Fig.18As shown, the fan base 3 of the floor-standing circulation fan of the present invention includes a base upper cover 31 and a base lower cover 32 which are assembled into a cylindrical body; wherein the central part of the base lower cover 32 is provided with a fourth telescopic plug installation position 321 for installing the fourth telescopic plug 35 and the second male plug 36 of the second plug-in conductive mechanism; the base lower cover 32 is provided with a power circuit board installation position 322 at its periphery for installing the power circuit board 39; the base lower cover 32 is provided with a storage structure on one side of the second plug-in conductive mechanism, and the storage structure includes the telescopic plug 35 and the second male plug 36 of the second plug-in conductive mechanism. The rod component placement position 323, the power adapter placement position 324 and the remote control placement position 325 are used to store the telescopic rod component 2, the power adapter 37 and the remote control 38 in the folded state; a through hole is provided on the base cover 31 corresponding to the second plug-in conductive mechanism, so that the second plug-in conductive mechanism is inserted and exposed on the top surface of the fan base 3; a flip cover 33 is provided on one side of the through hole corresponding to the storage structure, and the flip cover 33 is pivotally connected to the base cover 31 on one side adjacent to the through hole, and a flip cover lock 34 is provided on the side away from the through hole.

[0094] In the embodiment of the present invention, the remote control 38 is in the shape of a rectangular parallelepiped and can be placed in the remote control placement position 325 when not in use, and can be taken out from the remote control placement position 325 when in use. The remote control 38 is provided with buttons with different functions, such as a power button, a wind speed adjustment button, an up and down pitch button, a left and right swing button, a timing button, etc. By pressing buttons with different functions, the relevant motion control of the floor circulation fan can be achieved.

[0095] In an embodiment of the present invention, the power supply circuit board 39 is an electronically controlled component, and its function is to supply power to the entire floor circulation fan. A power input interface is provided on the power supply circuit board. The input voltage is determined according to the input voltage of the main control circuit board 1232, and this patent does not limit it. For example, 5V, 12V, 24V, etc. The power supply circuit board 39 is electrically connected to the key circuit board 136 and the main control circuit board 1232.

[0096] The electrical connection structure (main control module 123) of the floor-standing circulation fan of the present invention is as follows Fig.21As shown, the rocking and pitching assembly 12 includes a pitch module 121, a rocking module 122 and a main control module 123, the pitch module 121 includes a pitch motor 1213, the rocking module 122 includes a rocking motor 1222, and the main control module 123 includes a main control circuit board 1232, a wifi module 123 and a bluetooth module 1234; the display control assembly of the telescopic bracket assembly 13 includes a key circuit board 136; the main control circuit board 1232 is electrically connected and communicated with the rotating motor 113, the pitch motor 1213, the rocking motor 1222, the wifi module 1233, the bluetooth module 1234, the key circuit board 136 and the power circuit board 39 through cables to control the movement of the entire floor circulation fan.

[0097] The structure of the floor-standing circulation fan of the present invention is described above, and the control system of the floor-standing circulation fan of the present invention is described below. Among them, the main control circuit board 1232 is the core control component of the entire floor-standing circulation fan, which controls the coordinated movement of other electronic components. It includes:

[0098] (1) The main control circuit board 1232 and the key circuit board 136 communicate via cables. By pressing the power button, wind speed adjustment button, left and right shaking button, timing button, etc. on the key circuit board 136, the key circuit board 136 transmits the information of the pressed button to the main control circuit board 1232. The information is processed by the single-chip processor on the main control circuit board 1232, and then the relevant components are controlled to move. At the same time, the 1232 main control circuit board can control the key circuit board 136 to cyclically switch and display the current time, temperature and humidity, fan gear, timing time, etc.

[0099] (2) The main control circuit board 1232 communicates with the rotating motor 113 via a cable through the key circuit board 136. When the floor circulation fan is working, the main control circuit board 1232 converts the signal into a speed signal of the rotating motor 113 according to the set mode, inputs the signal into the rotating motor 113, controls the rotating motor 113 to rotate at a corresponding speed, and at the same time, information such as the speed of the rotating motor 113 is fed back to the main control circuit board 1232 via the cable for speed monitoring.

[0100] (3) The main control circuit board 1232 is connected to the pitch motor 1213 through a cable via the key circuit board 136. When the floor-standing circulation fan is working, the main control circuit board 1232 converts the speed signal of the pitch motor 1213 according to the set mode, controls the pitch motor 1213 to rotate at a corresponding speed, and realizes the pitch movement of the fan head 1 of the floor-standing circulation fan.

[0101] (4) The main control circuit board 1232 is connected to the swing motor 1222 via a cable. When the floor-standing circulation fan is working, the main control circuit board 1232 converts the signal into a rotation speed of the swing motor 1222 according to the set mode, controls the swing motor 1222 to rotate at a corresponding speed, and realizes the swinging movement of the fan head 1 of the floor-standing circulation fan.

[0102] (5) The main control circuit board 1232 is provided with a wifi module 1233 and a bluetooth module 1234, which can realize Wifi communication or bluetooth communication between the main control circuit board 1232 and external devices.

[0103] like Figure 1 , Fig.16 , Fig.17 , Fig.18 , Fig.19 , Fig. 20 As shown, the operation method of the floor-standing circulation fan of the present invention is described as follows:

[0104] (1) Pick up the fan head 1, open the cover 33 of the fan base 3, and take out the telescopic rod component 2, the power adapter 37 and the remote control 38.

[0105] (2) The third telescopic plug 226 of the telescopic rod component 2 is plugged into the fourth telescopic plug 35 of the fan base 3, and then the telescopic locking screw 135 of the telescopic bracket assembly 13 is screwed out, and the lower sleeve 132 is pulled outward. When it is pulled to the outermost, the telescopic locking screw 135 is put on to lock the upper sleeve 131 and the lower sleeve 132. Then, the first telescopic plug 138 and the second telescopic plug 212 are plugged into each other.

[0106] (3) Insert the power adapter 37 into the power interface of the power circuit board 39, and press the switch button on the button 137 to start the floor circulation fan, control the rotation of the rotary motor 113, and realize the high-speed rotation of the fan blades 114. The external air enters the mesh cover assembly 11 from the head bracket 111, and then changes the wind direction and wind speed through the fan blades 114, and blows the air out from the air outlet mesh cover 112 and blows the air to the external atmosphere, realizing the function of the floor circulation fan.

[0107] (4) When it is necessary to adjust the automatic up and down pitch of the floor-standing circulation fan mesh assembly 11, by pressing the pitch button on the button 137, the main control circuit board 1232 controls the pitch motor 1213 to rotate, driving the mesh assembly 11 to do up and down pitch movement.

[0108] (5) When it is necessary to adjust the automatic left and right swing of the floor-standing circulation fan mesh cover assembly 11, by pressing the swing button on the button 137, the main control circuit board 1232 controls the swing motor 1222 to rotate, driving the mesh cover assembly 11 to automatically swing left and right. The left and right swing angles can be adjusted according to user needs. The mesh cover assembly 11 swings left and right in a cycle between 30°, 60°, 90°, and 120°. The specific angle is not limited by this patent, and the mesh cover assembly 11 returns to the middle position when the machine is normally shut down.

[0109] (6) When it is necessary to adjust the height of the mesh cover assembly 11 from the ground, press the telescopic button 225 between the upper telescopic rod assembly 21 and the lower telescopic assembly 22 to unlock the ball bearing 223, so that the upper telescopic rod assembly 21 can slide up or down along the lower telescopic assembly 22. When the upper telescopic rod assembly 21 slides to a suitable position, release the telescopic button 225, and the ball bearing 223 locks the upper telescopic rod 211, so that the height adjustment of the floor-standing circulation fan can be completed.

[0110] (7) If the air outlet mesh cover 112 needs to be disassembled, the bolts (not shown) of the air outlet screw holes 1125 on the air outlet mesh cover 112 need only be unscrewed, and the air outlet mesh cover 112 can be unscrewed and removed to clean the air outlet mesh cover 112 and the fan blades 114 in the mesh cover assembly 11.

[0111] (8) By pressing the wind speed button on the button 137, the speed of the rotary motor 113 can be controlled, thereby adjusting the wind speed of the floor-standing circulation fan. By pressing the timer button on the button 137, the on / off time of the floor-standing circulation fan can be adjusted.

[0112] (9) The key circuit board 136 on the telescopic bracket assembly 13 can display information such as the current time, ambient temperature, fan gear position, swing angle, etc., thereby realizing real-time display of floor-standing circulation fan information.

[0113] (10) Through the Wifi module and Bluetooth module on the main control circuit board 1232, the current operation information of the floor circulation fan can be controlled or monitored in real time by a mobile phone or other device, thus realizing intelligent monitoring.

[0114] (11) When the floor-standing circulation fan needs to be stored, the power adapter 37 is unplugged after the power is turned off. Then, the first telescopic button 130 is pressed to lift the fan head 1 to separate the fan head 1 from the telescopic rod component 2. Then, the second telescopic button 227 is pressed to lift the telescopic rod component 2 to separate the telescopic rod component 2 from the fan base 3. Then, the telescopic locking screw 135 of the telescopic bracket assembly 13 is unscrewed, and the lower sleeve 132 is pushed inward. When it is pushed to the innermost part, the telescopic locking screw 135 is put on to lock the upper sleeve 131 and the lower sleeve 132. Finally, the telescopic button 225 between the upper telescopic rod assembly 21 and the lower telescopic assembly 22 is pressed to slide the upper telescopic rod assembly 21 along the lower telescopic assembly 22 to the innermost part.

[0115] (12) Open the flip cover 33 of the fan base 3, place the telescopic rod component 2 in the placement position of the telescopic rod component 323, place the power adapter 37 in the power adapter placement position 324, place the remote control 38 in the remote control placement position 325, and flip down the flip cover 33 to complete the storage of the telescopic rod component 2, the power adapter 37, and the remote control 38.

[0116] (13) The fan head 1 is placed above the fan base 3, and the floor-standing circulation fan is stored. After storage, the floor-standing circulation fan is cylindrical, which greatly reduces the space occupied.

[0117] The present invention is described in detail above in conjunction with the accompanying drawings and embodiments. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A floor-standing circulation fan, characterized in that: include: The fan head is formed into a cylindrical shape, and the fan head includes a mesh cover assembly, a rotating motor assembled and mounted on the mesh cover assembly, a fan blade, a swing-pitch assembly, and a telescopic bracket assembly. The top of the telescopic bracket assembly is fixedly connected to the swing-pitch assembly. The telescopic bracket assembly includes an upper sleeve and a lower sleeve assembled by a first positioning and adjusting mechanism, so that the upper sleeve and the lower sleeve slide relative to each other or are positioned on the same axis; the lower sleeve is also provided with a display control assembly that is electrically connected to and drives and controls the rotating motor to drive the fan blade to operate; The telescopic rod component comprises an upper telescopic rod assembly and a lower telescopic rod assembly connected by a second positioning and adjusting mechanism, so that the upper telescopic rod assembly and the lower telescopic rod assembly can slide relative to each other or be positioned on the same axis; the telescopic rod component and the fan head are detachably connected and electrically conductive via a first plug-in conductive mechanism provided at the bottom end of the telescopic bracket assembly and the top end of the upper telescopic rod assembly, and the telescopic rod component is electrically connected to the display control assembly via the first plug-in conductive mechanism; The fan base is formed into a cylindrical shape, and a storage space is provided inside the fan base, and the storage space includes a placement position for a telescopic rod component, a placement position for a power adapter, and a placement position for a remote control; the telescopic rod component and the fan base are detachably connected and electrically conductive via a second plug-in conductive mechanism provided at the bottom end of the lower telescopic rod assembly and the top surface of the fan base, and the fan base is electrically connected to the first plug-in conductive mechanism via the second plug-in conductive mechanism; the fan base is provided with a power circuit board for electrically connecting to the power adapter; Thereby, the floor-standing circulation fan is electrically connected with the second plug-in conductive mechanism, the first plug-in conductive mechanism and the display control component through the power circuit board to supply power to the display control component to drive and control the operation of the fan head; the floor-standing circulation fan stores the retractable rod component in the retracted state through the retractable rod component placement position, and stores the power adapter and the remote control through the power adapter placement position and the remote control placement position; The first positioning and adjusting mechanism comprises the upper sleeve, the lower sleeve and the sleeve sleeve; wherein the upper sleeve and the lower sleeve are both formed as hollow round rods, and the diameter of the upper sleeve is larger than the diameter of the lower sleeve, the top end of the upper sleeve is fixedly assembled with the pan-pitch assembly, and the upper sleeve is provided with a folding positioning hole and an extension positioning hole on the same straight line at both ends of the rod wall; the top rod wall of the lower sleeve is expanded to form a limiting convex portion, and the limiting convex portion is provided with a locking hole; the bottom end of the upper sleeve is covered with a sleeve sleeve, and the sleeve sleeve is formed into a ring shape with openings at two opposite ends, one of which is open to the The bottom end of the upper sleeve is fixedly assembled and has a diameter equal to the diameter of the inner wall of the bottom end of the upper sleeve. The other end is opened and contracted to form a limiting flange, and the inner diameter of the limiting flange is between the outer diameter of the lower sleeve rod wall and the outer diameter of the limiting convex portion. The upper sleeve is sleeved on the outside of the lower sleeve and is telescopically connected through the mutual abutment between the limiting convex portion and the limiting flange. By this, the first positioning adjustment mechanism passes through the retractable positioning hole or the extension positioning hole of the upper sleeve through a telescopic locking screw to lock with the locking hole of the lower sleeve, so that the lower sleeve is retracted inside the upper sleeve or extended to the outside of the upper sleeve. The second positioning and adjusting mechanism comprises an upper telescopic rod of the upper telescopic rod assembly, a lower telescopic rod of the lower telescopic rod assembly, a ball, a button cover, a telescopic button and an elastic reset mechanism; wherein the upper telescopic rod and the lower telescopic rod are both formed as hollow round rods, and the diameter of the lower telescopic rod is larger than the diameter of the upper telescopic rod; the top end of the upper telescopic rod is detachably connected to the telescopic bracket assembly; a plurality of telescopic grooves are provided on the outer wall of the upper telescopic rod on the same straight line; a ball, a button cover, a telescopic button and an elastic reset mechanism are embedded in the top wall of the lower telescopic rod, and the button cover is embedded in the upper end of the lower telescopic rod, and the telescopic button is engaged with the button cover by a screw or a buckle; thereby, by pressing the telescopic button up and down, the elastic reset mechanism and the button cover are driven to pull and control the ball to retract into the telescopic button or protrude into the telescopic groove, so as to control the telescopic adjustment or positioning between the upper telescopic rod and the lower telescopic rod; The first plug-in conductive mechanism comprises a first telescopic plug, a first female plug and a first telescopic button arranged at the bottom end of the telescopic bracket assembly, and a second telescopic plug, a first male plug and a first positioning lock buckle arranged at the top end of the upper telescopic rod assembly; wherein, the first telescopic plug is fixedly connected to the bottom end of the lower sleeve by a locking means; the first female plug is fixedly arranged in the first telescopic plug and is electrically connected to the key circuit board of the display control assembly; one end of the first telescopic button is telescopically protruded on the rod wall at the bottom end of the lower sleeve, and the other end is opened toward the first telescopic plug to form a first button lock buckle; the second telescopic plug is fixedly connected to the top end of the upper telescopic rod of the upper telescopic rod assembly by a locking means; the first male plug is fixedly arranged in the second telescopic plug; the first positioning lock buckle is arranged in the opening of the second telescopic plug; thereby, the telescopic rod component and the telescopic bracket assembly are inserted into the first telescopic plug through the second telescopic plug, the first positioning lock buckle is fixed with the first button lock buckle of the first telescopic button, and the telescopic bracket assembly and the telescopic rod component are plugged and conductively connected through the first male plug and the first female plug; The second plug-in conductive mechanism includes a third telescopic plug, a second telescopic button and a second female plug arranged at the bottom end of the telescopic rod component, and a fourth telescopic plug, a second male plug and a second positioning lock buckle arranged on the top surface of the fan base; wherein the third telescopic plug is fixedly connected to the bottom end of the lower telescopic rod of the lower telescopic rod assembly by locking means; the second female plug is fixedly arranged in the third telescopic plug; one end of the second telescopic button is telescopically convexly arranged on the rod wall at the bottom end of the lower telescopic rod, and the other end is opened toward the third telescopic plug to form a second button lock buckle; the fourth telescopic plug is fixedly connected to the fourth telescopic plug installation position of the base lower cover of the fan base by locking means; the second male plug is fixedly arranged in the fourth telescopic plug; the second positioning lock buckle is arranged in the opening of the fourth telescopic plug; thereby, the fan base and the telescopic rod component are inserted into the third telescopic plug through the fourth telescopic plug, the second positioning lock buckle is fixed with the second button lock buckle of the second telescopic button, and the fan base and the telescopic rod component are plugged and conductively connected through the second male plug and the second female plug; The mesh cover assembly is composed of a cylindrical head support and a mesh-shaped air outlet mesh cover; wherein, The rear half of the head bracket is formed as an air inlet grid, and the front half is formed as a head outer cover, the air inlet grid has radial ribs constituting the rear end of the head bracket and axial ribs connected between the radial ribs and the head outer cover; the center position of the radial ribs is recessed from the outside to the inside to form a swing and pitch component mounting position, and the swing and pitch component mounting position extends downward to form a telescopic bracket component mounting position, the swing and pitch component mounting position is a cylindrical space and a mounting opening is opened in the center for installing the rotating motor, the fan blades and the swing and pitch component, and the telescopic bracket component mounting position is a semi-cylindrical space for the telescopic bracket assembly to be accommodated and installed at the bottom of the swing and pitch component; pairs of air outlet guide bosses and air outlet positioning ribs are arranged at intervals on the inner side surface of the peripheral edge of the head outer cover, the air outlet guide bosses are formed as cylindrical protrusions, and the air outlet positioning ribs are formed as semi-cylindrical protrusions; The air outlet mesh cover has an air outlet grid composed of radial ribs, and an air outlet circumferential ring protruding from the air outlet mesh cover, and the air outlet circumferential ring is provided with pairs of air outlet guide grooves and air outlet engaging ribs at intervals; the number and position of the air outlet guide grooves and the air outlet engaging ribs correspond to the air outlet guide convex column and the air outlet positioning rib; The air outlet guide protrusion is placed in and slides along the air outlet guide groove until the air outlet positioning convex rib presses against and passes over the air outlet engaging convex rib, so as to rotate and assemble the head bracket and the air outlet net cover.

2. The floor-standing circulation fan according to claim 1, characterized in that: The rocking and pitching assembly includes a pitch module, a rocking module and a main control module; the rotating motor and the pitch module and the rocking module are installed on the head bracket through an integrated shell assembly; the integrated shell assembly includes an upper motor bracket, an upper motor cover, a lower motor bracket, a lower motor cover and a motor cover; the upper motor bracket is a U-shaped metal plate, having a vertical plate and two horizontal plates extending on opposite sides of the vertical plate; the lower motor bracket is a U-shaped metal plate, having a flat plate and two vertical plates extending on opposite sides of the flat plate; the ends of the two horizontal plates of the upper motor bracket and the ends of the two vertical plates of the lower motor bracket are spaced apart in a horizontally and vertically overlapping manner in space; wherein, The rotating motor is mounted on the U-shaped outer surface of the vertical plate and is covered with the motor cover plate; The pitch module is installed between the two horizontal plates and the two vertical plates and is covered with the upper motor cover; The swing module is installed on the top and bottom surfaces of the flat plate and is covered with the lower motor cover; The main control module includes a main control mounting plate and a main control circuit board, wherein the main control mounting plate is mounted on the U-shaped inner side of the vertical plate, and the main control circuit board is mounted on the upper motor bracket by being assembled on the mounting plate; the main control module cover is arranged inside the upper motor cover; Thereby, the swing-pitch assembly is integrated and installed in the swing-pitch assembly installation position of the mesh cover assembly through the integrated shell cover assembly, and the rotating motor passes through the installation opening of the swing-pitch assembly installation position to the interior of the mesh cover assembly to be assembled with the fan blades.

3. The floor-standing circulation fan according to claim 2, characterized in that: The two transverse plates of the upper motor bracket are defined as a first transverse plate and a second transverse plate, and the two vertical plates of the lower motor bracket are defined as a first vertical plate and a second vertical plate; The pitch module includes a pitch motor, a pitch driving wheel, a pitch driven wheel, a rotating shaft cover, a rotating shaft and a friction ring; wherein, The pitch motor is fixedly mounted on the U-shaped inner side surface of the first horizontal plate by means of locking means, and the output shaft of the pitch motor passes through the first horizontal plate to install and drive the pitch driving wheel to operate; the pitch driven wheel is mounted on the U-shaped inner side surface of the first vertical plate and meshes with the pitch driving wheel; The shaft cover is fixedly mounted on the U-shaped outer side of the second horizontal plate by means of locking means; one end of the shaft is fixedly mounted on the U-shaped inner side of the second vertical plate, and the other end is inserted into the shaft cover, and the friction ring is assembled between the outer side of the other end of the shaft and the inner circumference of the shaft cover; Thereby, the pitch motor drives the pitch driving wheel to rotate, and the pitch driven wheel receives the driving force of the pitch driving wheel, thereby pulling and driving the fan head to perform pitch motion.

4. The floor-standing circulation fan according to claim 2, characterized in that: The swing module includes a swing motor, a swing driving wheel and a swing driven wheel; wherein, The swing motor is fixedly mounted on the top surface of the flat plate by means of a locking means, and the output shaft of the swing motor passes through the flat plate to install and drive the swing driving wheel to operate; the swing driven wheel is fixedly mounted on the top of the telescopic bracket assembly and meshes with the swing driving wheel; Thereby, the swing motor drives the swing driving wheel to rotate, and the swing driven wheel receives the driving force of the swing driving wheel, thereby pulling and linking the fan head to make a swinging motion.

5. The floor-standing circulation fan according to claim 1, characterized in that: The lower sleeve is provided with an assembly opening; The display control assembly includes a display cover, a key circuit board and keys, wherein: The display cover is arranged on the assembly opening, and is provided with a display area and through holes corresponding to the number of the keys; The key circuit board is assembled on the rear side of the display cover and is located inside the lower sleeve. The key circuit board is electrically connected with a digital display light and a button. The digital display light is assembled on the key circuit board corresponding to the display area of ​​the display cover. The button is mounted on the key circuit board corresponding to the through hole position of the display cover. The button is protrudingly inserted into the through hole of the display cover plate and is connected to the button of the button circuit board.

6. The floor-standing circulation fan according to claim 1, characterized in that: The rocking and pitching assembly includes a pitching module, a rocking module and a main control module, the pitching module includes a pitching motor, the rocking module includes a rocking motor, and the main control module includes a main control circuit board, a wifi module and a Bluetooth module; The display control assembly of the telescopic bracket assembly includes a key circuit board; The main control circuit board is electrically connected and communicates with the rotating motor, the pitching motor, the swinging motor, the wifi module, the bluetooth module, the key circuit board and the power circuit board through cables.

7. The floor-standing circulation fan according to claim 1, characterized in that: The fan base comprises a base upper cover and a base lower cover which are assembled together to form a cylinder; wherein, A fourth telescopic plug installation position is provided at the central portion of the base lower cover for installing the fourth telescopic plug and the second male plug of the second plug-in conductive mechanism; a power circuit board installation position is provided at the periphery of the base lower cover for installing the power circuit board; a storage structure is provided at one side of the second plug-in conductive mechanism of the base lower cover, and the storage structure includes a placement position for the telescopic rod component, a placement position for the power adapter and a placement position for the remote control, for storing the telescopic rod component, the power adapter and the remote control in a folded state; A through hole is provided on the base cover corresponding to the second plug-in conductive mechanism, so that the second plug-in conductive mechanism is inserted and exposed on the top surface of the fan base; a flip cover is provided on one side of the through hole corresponding to the storage structure, and the flip cover is pivotally connected to the base cover on one side adjacent to the through hole, and a flip cover lock is provided on the side away from the through hole.

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