Floor fan with damping sensing lifting function

Abstract

The floor fan comprises a supporting chassis, a supporting rod assembly and a fan head, the supporting rod assembly comprises a fixing rod and a telescopic rod, a connecting base is arranged at the lower end of the fixing rod, and the fixing rod is connected with the supporting chassis in an assembled mode through the connecting base; the telescopic rod is slidably nested on the fixed rod, the upper end of the telescopic rod is assembled and connected with the fan head, a limiting seat is arranged at the lower end of the telescopic rod, the fixed rod is sleeved with a first spring, and the two ends of the first spring abut against the position between the limiting seat and the connecting seat; the floor fan is supported by the first spring, so that the telescopic rod and the fan head utilize the elastic potential energy of the first spring when the height is adjusted up and down, the operation has a damping feeling, a user can adjust more easily, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the field of fans, in particular to a floor-standing fan with damping lifting function. Background Art

[0002] The current floor fan structure mainly includes a supporting chassis, a supporting rod assembly and a fan head, and the supporting rod assembly includes a fixed rod and a telescopic rod. The telescopic rod is slid up and down relative to the fixed rod to adjust the height of the fan head. After the fan head is adjusted to the desired height, the locking structure between the fixed rod and the telescopic rod is operated to lock the position of the fan head. This structure requires the user to hold the telescopic rod or the fan head with one hand during adjustment, and use the other hand to lock the locking structure. However, when the locking structure becomes loose or the user forgets to hold the fan head when adjusting, the fan head and the telescopic rod will naturally fall under the action of gravity at the moment the locking structure is loosened, causing the fan head to collide with the fixed rod or the structure in the supporting chassis, which may easily cause damage to the floor fan or the sound produced by the collision will scare the people around. In addition, when raising the fan head, the user also needs to lift the fan head to the desired height with one hand, which requires a lot of hand strength from the user and is very difficult to operate. Therefore, the applicant provides a new solution to the above-mentioned technical problems through improvement and perfection of the prior art for consumers to choose and use. Summary of the invention

[0003] The utility model aims to provide a floor fan with damping lifting function which has a simple and reasonable structure, is easy to install and has a stable structure.

[0004] A floor fan with damping lifting function comprises a supporting chassis, a supporting rod assembly and a fan head, wherein the supporting rod assembly comprises a fixed rod and a telescopic rod, wherein the lower end of the fixed rod is provided with a connecting seat and is assembled and connected to the supporting chassis through the connecting seat, the telescopic rod is slidably nested on the fixed rod, and the upper end of the telescopic rod is assembled and connected to the fan head, the lower end of the telescopic rod is provided with a limiting seat, and the outer sleeve of the fixed rod is provided with a first spring, and the two ends of the first spring are abutted between the limiting seat and the connecting seat.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, the support rod assembly also includes a lifting guide structure arranged along the height direction of the fixed rod, the limit seat is provided with a guide part that slides with the lifting guide structure, and the guide part is provided with a deceleration structure that frictionally contacts the lifting guide structure.

[0007] As a further solution, the support rod assembly also includes a fixed rod shell, the bottom of the fixed rod shell is assembled and connected to the support chassis, the fixed rod and the lifting guide structure are placed in the fixed rod shell, and the top of the fixed rod shell is provided with a guide through hole suitable for the telescopic rod to slide in and out, and the limit seat is limited against the inner side of the fixed rod shell.

[0008] As a further solution, a pry bar handle is provided inside the fixed rod housing, a second spring is provided between the pry bar handle and the fixed rod housing, a pry hole suitable for the telescopic rod to pass through is opened on the pry bar handle, and the elastic potential energy of the second spring is used to push the pry bar handle to elastically pry the telescopic rod.

[0009] As a further solution, the upper end of the telescopic rod is fixedly connected to a supporting connector, and the fan head is provided with a swinging connector movably hinged to the supporting connector; a pushing rod assembly is threadedly connected to the supporting connector, and the pushing rod assembly is controlled to feed and press on the swinging connector to lock the up and down swinging angles of the fan head.

[0010] As a further solution, the lifting guide structure includes a guide column, the lower end and the upper end of the guide column are respectively fixedly connected to the connecting seat and the fixed rod shell, and the limit seat is provided with a guide hole that forms a linear sliding fit with the guide column, and the guide hole constitutes a guide part.

[0011] As a further solution, the deceleration structure includes a deceleration sleeve, and a clearance fit or an interference fit is formed between the deceleration sleeve and the guide column. A plurality of elastic buckle pins are provided at the lower end of the deceleration sleeve, and the deceleration sleeve is buckled in the guide hole through the plurality of elastic buckle pins, and the deceleration sleeve and the elastic buckle pins are made of semi-hard or elastic materials such as plastic or silicone.

[0012] As a further solution, the outer surface of the swing connecting head is provided with an upper swing limit portion and a lower swing limit portion along its swing direction, and a metal arc-shaped pressure plate is clamped between the upper swing limit portion and the lower swing limit portion, and the inner end of the push rod assembly is pressed against the arc-shaped pressure plate.

[0013] As a further solution, a control circuit board is arranged in the support chassis, and a power cord electrically connected to the control circuit board and a storage box placed next to the power cord are provided on the rear end side of the support chassis, and a lead-in port suitable for the power cord to be folded into the storage box is opened on the side wall of the storage box.

[0014] As a further solution, the storage box includes a box body and a box cover, the box body is integrally connected to a shell supporting a chassis, a fold is provided in the middle of the box cover corresponding to the box opening of the box body, the box cover is divided into a left part and a right part by the fold, the left part is tightly fitted on the bottom wall of the box body, and the right part is folded and provided at the box opening of the box body as an openable cover.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model discloses a floor fan with damping lifting function. The floor fan is supported by a first spring so that the telescopic rod and the fan head can utilize the elastic potential energy of the first spring when adjusting the height up and down, so that the operation has a damping feeling, making it easier for the user to adjust, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the floor-standing fan in the utility model.

[0019] Figure 3 This is another angled cross-sectional structural diagram of the support rod assembly in the utility model.

[0020] Figure 4 for Figure 2 Enlarged structural diagram at A in the middle.

[0021] Figure 5 It is a schematic diagram of the exploded support rod assembly and partial structure enlargement in the utility model.

[0022] Figure 6 It is a schematic diagram of the storage box structure in the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figures 1 to 6 As shown, a floor fan with damping lifting function comprises a supporting chassis 1, a supporting rod assembly 2 and a fan head 3, wherein the supporting rod assembly 2 comprises a fixed rod 21 and a telescopic rod 22, wherein a connecting seat 23 is provided at the lower end of the fixed rod 21, and the telescopic rod 22 is assembled and connected with the supporting chassis 1 through the connecting seat 23, wherein the telescopic rod 22 is slidably nested on the fixed rod 21, and an upper end thereof is assembled and connected with the fan head 3, wherein a limiting seat 24 is provided at the lower end of the telescopic rod 22, and a first spring 25 is provided on the outer sleeve of the fixed rod 21, and the two ends of the first spring 25 are abutted against each other between the limiting seat 24 and the connecting seat 23.

[0025] This floor fan is supported by the first spring 25, so that the telescopic rod 22 and the fan head 3 can utilize the elastic potential energy of the first spring 25 when adjusting the height up and down, so that the operation has a damping feeling, making it easier for the user to adjust, and improving the user experience.

[0026] When the elastic potential energy of the first spring 25 is less than the gravity exerted on the fan head 3 and the telescopic rod 22, when the telescopic rod 22 is unlocked and the height of the fan head 3 is adjusted downward, the fan head 3 and the telescopic rod 22 slowly descend with the support of the first spring 25, which can prevent the fan head 3 and the telescopic rod 22 from colliding when they fall naturally. When unlocking, the entire process can be operated with one hand, and the telescopic rod 22 can be locked again after descending to the expected height. The user does not need to support the fan head 3 with his hand. When adjusting the height of the fan head 3 upward, the user only needs a small force to lift the fan head 3 with the assistance of the first spring 25, and the telescopic rod 22 can be locked again after rising to the expected height.

[0027] When the elastic potential energy of the first spring 25 is greater than the gravity exerted on the fan head 3 and the telescopic rod 22, when unlocking the telescopic rod 22 to adjust the height of the fan head 3 downward, the user presses the fan head 3 with the auxiliary fan head 3 hand, so that the fan head 3 can be controlled to slowly descend at the user's pressing speed, and the telescopic rod 22 is locked again after it descends to the expected height. It can also prevent the fan head 3 and the telescopic rod 22 from colliding when they fall naturally, and one-handed operation is achieved throughout the process. When adjusting the height of the fan head 3 upward, after unlocking the telescopic rod 22, since the fan head 3 and the telescopic rod 22 have a certain weight, the fan head 3 and the telescopic rod 22 can only rise slowly, and the telescopic rod 22 is locked again after it rises to the expected height.

[0028] The support rod assembly 2 also includes a lifting guide structure 26 arranged along the height direction of the fixed rod 21, and the limit seat 24 is provided with a guide portion 27 that slides with the lifting guide structure 26, and the guide portion 27 is provided with a deceleration structure 28 that is in friction contact with the lifting guide structure 26; the lifting guide structure 26 and the guide portion 27 cooperate to ensure that the fan head 3 and the telescopic rod 22 are lifted and lowered vertically, and the friction of the deceleration structure 28 on the lifting guide structure 26 can reduce the lifting rate, so that the user has a better sense of damping when adjusting.

[0029] The support rod assembly 2 also includes a fixed rod housing 29, the bottom of which is assembled and connected to the support chassis 1, the fixed rod 21 and the lifting guide structure 26 are placed in the fixed rod housing 29, and the top of the fixed rod housing 29 is provided with a guide through hole 291 suitable for the telescopic rod 22 to slide in and out, and the limit seat 24 is limited to the inner side of the fixed rod housing 29; the fixed rod housing 29 can support the fixed rod 21 and the telescopic rod 22 to prevent the fan's center of gravity from being too high and causing the support rod assembly to bend and swing.

[0030] The fixing rod housing 29 is in a frustum or truncated cone shape, and the inner wall of the fixing rod housing 29 is assumed to have a plurality of reinforcement cavities along the height direction, which can improve the strength of the fixing rod housing 29 .

[0031] A pry bar handle 4 is provided in the fixed rod housing 29, and a second spring 5 is provided between the pry bar handle 4 and the fixed rod housing 29. A pry hole 41 suitable for the telescopic rod 22 to pass through is opened on the pry bar handle 4, and the elastic potential energy of the second spring 5 is used to push the pry bar handle 4 to elastically pry the telescopic rod 22;

[0032] The inner end of the pry bar handle 4 is clamped on the fixing rod housing 29, and the other end extends out of the fixing rod housing 29 and is connected to a pressing knob 42. When the user presses the pressing knob 42, the pry bar handle 4 moves downward so that the telescopic rod 22 is not in contact with the pry bar handle 4, thereby releasing the lock of the telescopic rod 22. When the user releases the pressing knob 42, under the action of the second spring 5, the pry bar handle 4 pries the telescopic rod 22 in an inclined state, thereby locking the position of the telescopic rod 22. This structure is easy to adjust and convenient to operate.

[0033] The upper end of the telescopic rod 22 is fixedly connected to a support connector 6, and the fan head 3 is provided with a swing connector 7 movably hinged to the support connector 6; a pressure rod assembly 8 is threadedly connected to the support connector 6, and the pressure rod assembly 8 is controlled to feed and press on the swing connector 7 to lock the up and down swing angle of the fan head 3; this structure can adjust the up and down swing angle of the fan head.

[0034] The push rod assembly 8 includes a push rod 81 and a knob handle 82 connected to the outer end of the push rod 81. The knob handle 82 controls the forward and reverse rotation of the push rod 81 to achieve feeding or retreating.

[0035] In this embodiment, the lifting guide structure 26 includes a guide column 261, the lower end and the upper end of the guide column 261 are fixedly connected to the connecting seat 23 and the fixed rod housing 29 respectively, and the limit seat 24 is provided with a guide hole 271 that forms a linear sliding fit with the guide column 261, and the guide hole 271 constitutes a guide part 27; this structure is simple, the production cost is low, and the guiding effect is good.

[0036] The deceleration structure 28 includes a deceleration sleeve 281, and a clearance fit or an interference fit is formed between the deceleration sleeve 281 and the guide column 261. A plurality of elastic buckle pins 282 are provided at the lower end of the deceleration sleeve 281. The deceleration sleeve 281 is buckled in the guide hole 271 through the plurality of elastic buckle pins 282, and the deceleration sleeve 281 and the elastic buckle pins 282 are made of semi-rigid or elastic materials such as plastic or silicone. The semi-rigid or elastic deceleration sleeve 281 is used to rub the guide column 261, thereby reducing speed and enhancing the damping feeling.

[0037] The outer surface of the swing connector 7 is provided with an upper swing limit portion 71 and a lower swing limit portion 72 along its swing direction, and a metal arc-shaped pressure piece 73 is clamped between the upper swing limit portion 71 and the lower swing limit portion 72, and the inner end of the push rod assembly 8 is pressed on the arc-shaped pressure piece 73; when the push rod 81 leaves the arc-shaped pressure piece 73, the inner end of the push rod 81 is still between the upper swing limit portion 71 and the lower swing limit portion 72, thereby limiting the up and down swinging angle of the fan head 3, and the arc-shaped pressure piece 73 is formed of metal material, which is wear-resistant and pressure-resistant, can increase the service life of the fan, and prevent the push rod 81 from piercing through the outer shell of the swing connector 7 due to its strong force.

[0038] The arc of the arc-shaped pressure-bearing piece 73 is concentric with the swing axis of the swing connector 7 .

[0039] A control circuit board 9 is arranged in the supporting chassis 1, and a power cord 10 electrically connected to the control circuit board 9 and a storage box 11 placed next to the power cord 10 are arranged on the rear end side of the supporting chassis 1. The side wall of the storage box 11 is provided with a lead-in opening 1101 suitable for the power cord 10 to be folded into the storage box 11; when the fan is transported or stored, the power cord 10 can be stored in the storage box 11, making the fan more beautiful and simple.

[0040] Specifically, the storage box 11 includes a box body 111 and a box cover 112. The box body 111 is integrally connected to the shell of the supporting chassis 1. A fold 112a is provided in the middle of the box cover 112 corresponding to the box opening of the box body 111. The box cover 112 is divided into a left part 112b and a right part 112c by the fold 112a. The left part 112b is tightly fitted on the bottom wall of the box body 111, and the right part 112c is folded and provided at the box opening of the box body 111 as an openable cover; the connection of the box cover does not require conventional hinge shafts and other structures, which can simplify the structure, reduce production costs, and improve assembly efficiency.

[0041] The fan head is a fan head with a left-right swing structure, which belongs to the prior art and will not be elaborated in detail here.

[0042] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A floor fan with damping lifting function, comprising a supporting chassis (1), a supporting rod assembly (2) and a fan head (3), characterized in that The support rod assembly (2) comprises a fixed rod (21) and a telescopic rod (22); a connecting seat (23) is provided at the lower end of the fixed rod (21) and the telescopic rod (22) is assembled and connected to the support chassis (1) via the connecting seat (23); the telescopic rod (22) is slidably nested on the fixed rod (21) and its upper end is assembled and connected to the fan head (3); a limiting seat (24) is provided at the lower end of the telescopic rod (22); a first spring (25) is provided on the outer sleeve of the fixed rod (21); two ends of the first spring (25) are abutted between the limiting seat (24) and the connecting seat (23).

2. A floor fan with damping lift according to claim 1, characterized in that The support rod assembly (2) further comprises a lifting guide structure (26) arranged along the height direction of the fixed rod (21); the limit seat (24) is provided with a guide portion (27) that is slidably matched with the lifting guide structure (26); and the guide portion (27) is provided with a deceleration structure (28) that is in frictional contact with the lifting guide structure (26).

3. A floor fan with damping lift according to claim 2, characterized in that The support rod assembly (2) further comprises a fixed rod housing (29), the bottom of which is assembled and connected to the support chassis (1), the fixed rod (21) and the lifting guide structure (26) are placed in the fixed rod housing (29), the top of the fixed rod housing (29) is provided with a guide through hole (291) suitable for the telescopic rod (22) to slide in and out, and the limit seat (24) is limitedly abutted against the inner side of the fixed rod housing (29).

4. A floor fan with damping lift according to claim 3, characterized in that A pry bar handle (4) is provided inside the fixed rod housing (29), a second spring (5) is provided between the pry bar handle (4) and the fixed rod housing (29), a pry hole (41) suitable for the telescopic rod (22) to pass through is opened on the pry bar handle (4), and the elastic potential energy of the second spring (5) is used to push the pry bar handle (4) to elastically pry and press the telescopic rod (22).

5. A floor fan with damping lift according to claim 1, characterized in that The upper end of the telescopic rod (22) is fixedly connected to a support connector (6); the fan head (3) is provided with a swing connector (7) movably hinged to the support connector (6); a push rod assembly (8) is threadedly connected to the support connector (6); the push rod assembly (8) is controlled to feed and press on the swing connector (7) to lock the up and down swing angles of the fan head (3).

6. A floor fan with damping lift according to claim 3, characterized in that The lifting guide structure (26) comprises a guide column (261), the lower end and the upper end of the guide column (261) are fixedly connected to the connecting seat (23) and the fixed rod housing (29) respectively, and the limit seat (24) is provided with a guide hole (271) which forms a linear sliding fit with the guide column (261), and the guide hole (271) constitutes the guide part (27).

7. A floor fan with damping lift according to claim 6, characterized in that The deceleration structure (28) comprises a deceleration sleeve (281), a clearance fit or an interference fit is formed between the deceleration sleeve (281) and the guide column (261), a plurality of elastic buckle pins (282) are provided at the lower end of the deceleration sleeve (281), the deceleration sleeve (281) is buckled in the guide hole (271) through the plurality of elastic buckle pins (282), and the deceleration sleeve (281) and the elastic buckle pins (282) are made of semi-hard or elastic materials such as plastic or silicone.

8. A floor fan with damping lift according to claim 5, characterized in that An upper swing limit portion (71) and a lower swing limit portion (72) are provided on the outer surface of the swing connector (7) along the swing direction thereof, an arc-shaped pressure-bearing sheet (73) made of metal is clamped between the upper swing limit portion (71) and the lower swing limit portion (72), and the inner end of the push rod assembly (8) is pressed against the arc-shaped pressure-bearing sheet (73).

9. A floor fan with damping lift according to claim 1, characterized in that A control circuit board (9) is arranged in the support chassis (1), a power cord (10) electrically connected to the control circuit board (9) and a storage box (11) arranged beside the power cord (10) are arranged on the rear end side of the support chassis (1), and a lead-in opening (1101) suitable for folding the power cord (10) into the storage box (11) is provided on the side wall of the storage box (11).

10. A floor fan with damping lift according to claim 9, characterized in that The storage box (11) comprises a box body (111) and a box cover (112); the box body (111) is integrally connected to a shell supporting a chassis (1); a fold (112a) is provided in the middle of the box cover (112) corresponding to a box opening of the box body (111); the box cover (112) is divided into a left part (112b) and a right part (112c) by the fold (112a); the left part (112b) is tightly fitted on the bottom wall of the box body (111); and the right part (112c) is folded and arranged at the box opening of the box body (111) as an openable cover.

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