CN220168238U - Connecting structure for quick dismounting of lower pipe and chassis and electric fan - Google Patents

Abstract

The utility model discloses a connecting structure for quickly disassembling and assembling a lower pipe and a chassis and an electric fan, which comprises a snap ring assembly and a disassembling button, wherein the snap ring assembly comprises a fixed cylinder and a snap ring, the disassembling button is movably arranged in the fixed cylinder, a disassembling spring is sleeved outside the disassembling button, the elastic expansion direction of the disassembling spring is consistent with the direction of a central shaft of the fixed cylinder, a positioning ring is arranged on the inner wall of the lower pipe, the snap ring consists of a first limiting piece and a second limiting piece, the first limiting piece is connected with the positioning ring in a clamping way, the upper part of the disassembling button is of a hollow structure, and the second limiting piece is connected with the inner side of the upper part of the disassembling button in a propping way; when the dismounting spring is compressed, the second limiting piece is pressed downwards to bend towards the axis direction of the dismounting button, and the first limiting piece is contracted towards the central axis of the dismounting button. This connection structure adopts snap ring subassembly and dismouting button, realizes down quick installation and dismantlement of pipe and chassis, avoids current knob difficult turn round or turn round the condition of not putting in place, does not adopt the hardware, and the cost is reduced.

Description

Connecting structure for quick dismounting of lower pipe and chassis and electric fan

Technical Field

The utility model relates to the technical field of electric fans, in particular to a connecting structure for quickly disassembling and assembling a lower pipe and a chassis and an electric fan.

Background

At present, the lower tube and the chassis of the electric fan are connected by adopting a knob, the knob structure is provided with a gasket and an iron rod, a knob with an insert and the like, the lower tube of the original electric fan adopts a fixing mode of a connecting sheet and a connecting rod or a chassis knob, and the structure contains hardware, so that the electric fan has high cost, is required to be rotationally assembled, is required to be rotated by a customer in the disassembly and assembly process, is troublesome to disassemble, and can often cause the phenomenon that the knob is not screwed in place or is difficult to twist if the screw is deformed, so that post-sale complaint problem occurs.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a connecting structure for quickly disassembling and assembling a lower pipe and a chassis of a fan, which solves the problems that the connecting structure of the chassis and the lower pipe of the electric fan is complex, the knob structure is not rotated in place or is difficult to rotate, and the fixing structure is provided with hardware cost.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a connecting structure of down tube and chassis quick assembly disassembly, includes snap ring subassembly and dismouting button, the snap ring subassembly includes fixed section of thick bamboo and chucking knot, be equipped with two at least chucking buckles on the upper end of fixed section of thick bamboo along the circumferencial direction, dismouting button movable mounting in the fixed section of thick bamboo, the outside cover of dismouting button is equipped with the dismouting spring, the elastic expansion direction of dismouting spring is unanimous with the center pin direction of fixed section of thick bamboo, be equipped with the holding ring on the inner wall of down tube, the chucking knot comprises first locating part and second locating part, when the dismouting spring is naturally elongated, first locating part with the holding ring joint is connected, the upper portion of dismouting button is hollow structure, the second locating part with the inboard butt of upper portion of dismouting button is connected; when the dismounting spring is compressed, the second limiting piece is pressed downwards to bend towards the axis direction of the dismounting button, and the first limiting piece is contracted towards the central axis of the dismounting button.

As a further improvement of the utility model: the second limiting piece is provided with a second bending part and a limiting part, the lower end of the second bending part is arranged on the periphery of the fixed cylinder, the limiting part is fixedly connected with the upper end of the second bending part, the lower end of the limiting part is obliquely arranged towards the axis direction of the disassembly and assembly button, the lower end of the limiting part is abutted against the inner wall of the upper part of the disassembly and assembly button, and when the disassembly and assembly spring is compressed, the second bending part bends towards the inner side of the fixed cylinder.

As a further improvement of the utility model: when the dismounting spring naturally stretches, the second bending part is vertically arranged along the axial direction of the fixed cylinder, and a limiting gap is reserved between the upper end of the dismounting button and the second bending part.

As a further improvement of the utility model: a plurality of second limiting parts are distributed on the circumferential direction of the upper end of the fixed barrel, fixed clamping positions are arranged between the adjacent second limiting parts, limiting blocks are arranged on the periphery of the upper part of the disassembly and assembly button, and the limiting blocks are clamped on the fixed clamping positions.

As a further improvement of the utility model: the outside of second locating part is connected first locating part, first locating part is equipped with location portion, first portion of bending and fixed part, form spacing chucking position between location portion and the fixed part, first portion of bending sets up with the second portion of bending relatively, first portion of bending is followed the second and is bent towards the inboard of fixed section of thick bamboo.

As a further improvement of the utility model: the fixing part is provided with a first inclined plane on one side close to the inner wall of the lower pipe, and a second inclined plane tangent to the first inclined plane is arranged on the lower side of the positioning ring.

As a further improvement of the utility model: the fixed cylinder comprises an upper cylinder body and a lower cylinder body, the diameter of the upper cylinder body is smaller than that of the lower cylinder body, the lower cylinder body is arranged in the chassis, the upper cylinder body is arranged between the interior of the lower pipe and the chassis, and the diameter of the upper cylinder body is matched with that of the lower pipe.

As a further improvement of the utility model: the disassembly and assembly button is provided with an inner cylinder body and a bottom cylinder body, the diameter of the bottom cylinder body is larger than that of the inner cylinder body, a first slope surface is arranged on the inner wall of the upper portion of the inner cylinder body, the first slope surface is obliquely arranged towards the axis direction of the inner cylinder body, and the first slope surface is in sliding connection with the limiting part of the second limiting part.

As a further improvement of the utility model: the inner wall of the upper cylinder body is extended to form a step, and the dismounting spring is arranged between the bottom cylinder body and the step.

An electric fan uses a connecting structure for quickly dismounting a lower pipe and a chassis.

Compared with the prior art, the utility model has the beneficial effects that:

the connecting structure is provided with the snap ring assembly and the dismounting button, the dismounting button is arranged in the fixed cylinder of the snap ring assembly, the periphery of the dismounting button is sleeved with the dismounting spring, the clamping buckle at the upper part of the snap ring assembly is clamped and fixed with the positioning ring on the inner wall of the lower pipe during mounting, the dismounting spring is in a natural extension state, the second limiting piece of the clamping buckle is abutted with the inner wall at the upper part of the dismounting button, the first limiting piece is clamped with the positioning ring, the chassis and the lower pipe are fixedly mounted, the dismounting button is pressed upwards during dismounting, the dismounting spring is compressed, the inner wall at the upper part of the dismounting button bends the second limiting piece, the first limiting part is contracted inwards and separated from the positioning ring, the lower pipe is pulled out, the dismounting of the lower pipe and the chassis is simply and efficiently completed, the quick dismounting of the lower pipe and the chassis of the fan can be realized by using the connecting structure, the condition that the existing knob is difficult to twist or not in place is avoided, the connecting structure does not adopt hardware, and the cost is reduced.

Drawings

Fig. 1 is a schematic structural view of a connection structure for quickly assembling and disassembling a down tube and a chassis according to the present utility model.

Fig. 2 is a cross-sectional view of a connection structure of a down tube and a chassis according to the present utility model, which is quickly assembled and disassembled.

Fig. 3 is a schematic structural view of the down tube and chassis of the present utility model.

FIG. 4 is a schematic view of the structure of the present utility model when the down tube is detached from the chassis

Reference numerals:

1. snap ring assembly, 11, fixed cylinder, 111, upper cylinder, 1111, step, 112, lower cylinder, 12, chucking buckle, 121, first stopper, 122, second stopper, 1211, location portion, 1221, second bending portion, 1212, first bending portion, 1213, fixed portion, 1214, first inclined plane, 122, stopper, 123, fixed clamping position, 124, spacing chucking position, 2, disassembly button, 21, inner cylinder, 211, first inclined plane, 22, bottom cylinder, 23, stopper, 3, disassembly spring, 4, down tube, 41, locating ring, 411, second inclined plane, 5, chassis.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to solve the technical problems in the prior art, the present utility model will be further described with reference to the accompanying drawings and examples:

example 1

As shown in fig. 1-4, this embodiment discloses a connection structure for quick disassembly and assembly of a lower pipe and a chassis, which comprises a snap ring assembly 1 and a disassembly button 2, wherein the snap ring assembly 1 comprises a fixed cylinder 11 and a snap fastener 12, at least two snap fasteners 12 are arranged at the upper end of the fixed cylinder 11 along the circumferential direction, the disassembly button 2 is movably installed in the fixed cylinder 11, a disassembly spring 3 is sleeved outside the disassembly button 2, the elastic expansion direction of the disassembly spring 3 is consistent with the central axis direction of the fixed cylinder 11, a positioning ring 41 is arranged on the inner wall of the lower pipe 4, the snap fastener 12 is composed of a first limiting piece 121 and a second limiting piece 122, when the disassembly spring 3 is naturally elongated, the first limiting piece 121 is in clamping connection with the positioning ring 41, the upper part of the disassembly button 2 is of a hollow structure, and the second limiting piece 122 is in abutting connection with the inner side of the upper part of the disassembly button 2; when the dismounting spring 3 is compressed, the second limiting member 122 is pressed and bent downward toward the axial direction of the dismounting button 2, and the first limiting member 121 is contracted toward the central axis of the dismounting button 2.

The snap ring assembly 1 is produced by using materials with certain toughness such as nylon, PP+GF and ABS, deformation phenomenon is avoided after long-term use, and the disassembling and assembling button 2 is produced by using materials with self-lubrication such as POM, so that clamping stagnation phenomenon is avoided in the pressing process.

The first locating part 121 in the outside of chucking knot 12 closely laminates with the inner wall of down tube 4, and the outside of fixed section of thick bamboo 11 closely laminates with the inner wall of down tube 4 simultaneously, avoids appearing rocking the phenomenon in the use, and the clearance is at 0.2mm after the first locating part 121 of chucking knot 12 and the locating ring 41 assembly of down tube 4, prevents that the clearance is too big to appear becoming flexible, and the clearance is too little difficult to assemble.

In this embodiment, the disassembly button 2 is installed in the fixed cylinder 11 of the snap ring assembly 1, meanwhile, the disassembly spring 3 is sleeved on the periphery of the disassembly button 2, so that the first limiting piece 121 of the clamping buckle 12 is clamped and fixed with the positioning ring 41 on the inner wall of the lower pipe 4, the second limiting piece 122 of the clamping buckle 12 is abutted against the inner wall of the upper part of the disassembly button 2, the lower part of the fixed cylinder 11 is arranged in the chassis 5 or at the lower side, the lower pipe 4 is embedded in the upper part of the fixed cylinder 11, the diameter of the upper part of the fixed cylinder 11 is smaller than that of the lower part of the fixed cylinder 11, and the second limiting piece 122 and the first limiting piece 121 are bent by means of the disassembly spring 3 and the disassembly button 2, so that the quick assembly and disassembly of the lower pipe 4 and the chassis 5 are completed.

As shown in fig. 3, when the chassis 5 and the lower pipe 4 are mounted, the dismounting spring 3 is in a natural extension state, the second limiting piece 122 of the clamping buckle 12 is abutted against the inner wall of the upper portion of the dismounting button 2, at this time, the second limiting piece 122 is not bent, the first limiting piece 121 is clamped with the positioning ring 41, the first limiting piece 121 is not bent, and the fixed mounting of the chassis 5 and the lower pipe 4 is completed.

As shown in fig. 4, when the chassis 5 and the lower tube 4 are disassembled, the disassembly button 2 is pressed upwards, the disassembly spring 3 is compressed, the disassembly button 2 moves upwards, the upper inner wall of the disassembly button 2 bends the second limiting part 122, meanwhile, the first limiting part 1222 contracts inwards and is separated from the positioning ring 41, the lower tube 4 is pulled out, the disassembly of the lower tube 4 and the chassis 5 is simply and efficiently completed, the connection structure can be used for realizing the quick disassembly of the lower tube 4 and the chassis 5 of the fan, the condition that the existing knob is difficult to twist or is not in place is avoided, hardware is not adopted in the connection structure, and the cost is reduced.

Example 2

As shown in fig. 1-4, this embodiment discloses a connection structure for quick assembly and disassembly of a lower pipe 4 and a chassis 5, which comprises a snap ring assembly 1 and a disassembly button 2, wherein the snap ring assembly 1 comprises a fixed cylinder 11 and a snap fastener 12, at least two snap fasteners 12 are arranged at the upper end of the fixed cylinder 11 along the circumferential direction, the disassembly button 2 is movably installed in the fixed cylinder 11, a disassembly spring 3 is sleeved outside the disassembly button 2, the elastic expansion direction of the disassembly spring 3 is consistent with the central axis direction of the fixed cylinder 11, a positioning ring 41 is arranged on the inner wall of the lower pipe 4, the snap fastener 12 is composed of a first limiting piece 121 and a second limiting piece 122, when the disassembly spring 3 is naturally elongated, the first limiting piece 121 is in clamping connection with the positioning ring 41, the upper part of the disassembly button 2 is of a hollow structure, and the second limiting piece 122 is in abutting connection with the upper inner side of the disassembly button 2; when the dismounting spring 3 is compressed, the second limiting member 122 is pressed and bent downward toward the axial direction of the dismounting button 2, and the first limiting member 121 is contracted toward the central axis of the dismounting button 2.

The snap ring assembly 1 is produced by using materials with certain toughness such as nylon, PP+GF and ABS, deformation phenomenon is avoided after long-term use, and the disassembling and assembling button 2 is produced by using materials with self-lubrication such as POM, so that clamping stagnation phenomenon is avoided in the pressing process.

Preferably, the fixing cylinder 11 is composed of an upper cylinder 111 and a lower cylinder 112, the diameter of the upper cylinder 111 is smaller than that of the lower cylinder 112, the lower cylinder 112 is arranged in the chassis 5, the upper cylinder 111 is arranged between the inside of the lower pipe 4 and the chassis 5, and the diameter of the upper cylinder 111 is matched with that of the lower pipe 4. Wherein, the fastening buckle 12 is arranged on the upper cylinder 111.

The first locating part 121 in the outside of chucking knot 12 closely laminates with the inner wall of down tube 4, and the outside of fixed section of thick bamboo 11 closely laminates with the inner wall of down tube 4 simultaneously, avoids appearing rocking the phenomenon in the use, and the clearance is at 0.2mm after the first locating part 121 of chucking knot 12 and the locating ring 41 assembly of down tube 4, prevents that the clearance is too big to appear becoming flexible, and the clearance is too little difficult to assemble.

Preferably, the assembly and disassembly button 2 is provided with an inner cylinder 21 and a bottom cylinder 22, the diameter of the bottom cylinder 22 is larger than that of the inner cylinder 21, a first slope 211 is provided on the inner wall of the upper portion of the inner cylinder 21, the first slope 211 is inclined toward the axis direction of the inner cylinder 21, and the first slope 211 is slidably connected with a limiting portion 1222 of the second limiting member 122. The assembly position of the disassembly button 2 and the snap ring assembly 1 is provided with a rounding, namely a first slope 211 is arranged, so that clamping stagnation in the movement process is avoided.

More preferably, a step 1111 is formed on the inner wall of the upper cylinder 111 in an extending manner, and the detachable spring 3 is installed between the bottom cylinder 22 and the step 1111.

Preferably, the second stopper 122 is provided with a second bending portion 1221 and a stopper portion 1222, the lower end of the second bending portion 1221 is disposed on the outer periphery of the fixed cylinder 11, the stopper portion 1222 is fixedly connected with the upper end of the second bending portion 1221, the lower end of the stopper portion 1222 is obliquely disposed toward the axial direction of the disassembly button 2, the lower end of the stopper portion 1222 is abutted against the upper inner wall of the disassembly button 2, and when the disassembly spring 3 is compressed, the second bending portion 1221 is bent toward the inner side of the fixed cylinder 11.

The second bending part 1221 forms an acute angle with the limiting part 1222, when the disassembly and assembly button 2 extrudes the disassembly and assembly spring 3 to move upwards, the position of the second limiting part 122 bent at the upper part of the disassembly and assembly button 2 is positioned through the connection included angle between the second bending part 1221 and the limiting part 1222, after the disassembly and assembly button 2 cannot continue to extrude and rise, the second limiting part 122 is indicated to be bent in place, meanwhile, the first limiting part 121 is also bent in place, at the moment, the clamping buckle 12 is separated from the positioning ring 41 on the inner wall of the lower pipe 4, the lower pipe 4 can be pulled out, and the quick disassembly of the lower pipe 4 and the chassis 5 is completed.

More preferably, when the dismounting spring 3 naturally extends, the second bending portion 1221 is vertically disposed along the axial direction of the fixed cylinder 11, and a limiting gap is left between the upper end of the dismounting button 2 and the second bending portion 1221.

Preferably, a plurality of second limiting members 122 are distributed on the circumferential direction of the upper end of the fixed cylinder 11, a fixed clamping position 123 is arranged between the adjacent second limiting members 122, a limiting block 23 is arranged on the periphery of the upper part of the disassembly button 2, and the limiting block 23 is clamped on the fixed clamping position 123.

Correspondingly, a plurality of first limiting members 121 are also arranged, and the first limiting members 121 and the second limiting members 122 are integrally arranged.

More preferably, the outer side of the second limiting member 122 is connected to the first limiting member 121, the first limiting member 121 is provided with a positioning portion 1211, a first bending portion 1212 and a fixing portion 1213, a limiting clamping position 124 is formed between the positioning portion 1211 and the fixing portion 1213, the first bending portion 1212 is disposed opposite to the second bending portion 1221, and the first bending portion 1212 is bent towards the inner side of the fixed cylinder 11 along with the second bending portion 1221.

More preferably, a first inclined surface 1214 is provided on a side of the fixing portion 1213 adjacent to the inner wall of the lower tube 4, and a second inclined surface 411 tangent to the first inclined surface 1214 is provided on the lower side of the positioning ring 41. When the lower tube 4 is mounted with the chassis 5, the fixed cylinder 11 is inserted into the lower tube 4 through the chassis 5, and the first inclined surface 1214 on the fixed portion 1213 is matched with the second inclined surface 411, so that the fixed cylinder 11 is slidably inserted into the lower tube 4.

Example 3

An electric fan using a connection structure of a down tube and a chassis as described in embodiment 1 or embodiment 2.

The working principle of the utility model is as follows: after the disassembly and assembly springs are sleeved on the disassembly and assembly buttons, the disassembly and assembly buttons are nested into the fixed barrel from the bottom, then the disassembly and assembly buttons are pressed into the snap ring assembly by a press machine, the snap ring assembly is ensured to be clamped in place after the assembly is completed, the disassembly and assembly buttons are pressed smoothly, the assembled connecting structure penetrates through the holes of the chassis, the lower pipe is assembled into the connecting structure, the first limiting piece is fixedly clamped with the positioning ring on the inner wall of the lower pipe, the quick assembly is realized, the disassembly and assembly buttons are pressed during the disassembly, the first limiting piece and the second limiting piece are contracted and bent, the clamping buckle is separated from the inner wall of the lower pipe, and the lower pipe is pulled out, so that the quick disassembly can be realized.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The connecting structure is characterized by comprising a snap ring assembly and a disassembly and assembly button, wherein the snap ring assembly comprises a fixed cylinder and a snap fastener, at least two snap fasteners are arranged at the upper end of the fixed cylinder along the circumferential direction, the disassembly and assembly button is movably installed in the fixed cylinder, a disassembly and assembly spring is sleeved outside the disassembly and assembly button, the elastic expansion direction of the disassembly and assembly spring is consistent with the central axis direction of the fixed cylinder, a positioning ring is arranged on the inner wall of the lower pipe, the snap fastener consists of a first limiting piece and a second limiting piece, when the disassembly and assembly spring is naturally elongated, the first limiting piece is connected with the positioning ring in a clamping way, and the upper part of the disassembly and assembly button is of a hollow structure and the second limiting piece is connected with the inner side of the upper part of the disassembly and assembly button in an abutting way; when the dismounting spring is compressed, the second limiting piece is pressed downwards to bend towards the axis direction of the dismounting button, and the first limiting piece is contracted towards the central axis of the dismounting button.

2. The connecting structure for quickly assembling and disassembling a lower pipe and a chassis according to claim 1, wherein the second limiting piece is provided with a second bending portion and a limiting portion, the lower end of the second bending portion is arranged on the periphery of the fixed cylinder, the limiting portion is fixedly connected with the upper end of the second bending portion, the lower end of the limiting portion is obliquely arranged towards the axis direction of the disassembling button, the lower end of the limiting portion is abutted against the inner wall of the upper portion of the disassembling button, and when the disassembling spring is compressed, the second bending portion bends towards the inner side of the fixed cylinder.

3. The connecting structure for quickly disassembling and assembling the lower pipe and the chassis according to claim 2, wherein when the disassembling and assembling spring is naturally elongated, the second bending portion is vertically arranged along the axial direction of the fixed barrel, and a limiting gap is reserved between the upper end of the disassembling and assembling button and the second bending portion.

4. The connecting structure for quickly disassembling and assembling a lower pipe and a chassis according to claim 2, wherein a plurality of second limiting members are distributed on the circumferential direction of the upper end of the fixed barrel, fixed clamping positions are arranged between adjacent second limiting members, limiting blocks are arranged on the periphery of the upper part of the disassembling and assembling button, and the limiting blocks are clamped on the fixed clamping positions.

5. The connecting structure for quickly disassembling and assembling a lower pipe and a chassis according to any one of claims 2 to 4, wherein the outer side of the second limiting member is connected with the first limiting member, the first limiting member is provided with a positioning part, a first bending part and a fixing part, a limiting clamping position is formed between the positioning part and the fixing part, the first bending part and the second bending part are oppositely arranged, and the first bending part bends towards the inner side of the fixing cylinder along with the second bending part.

6. The connecting structure for quickly disassembling and assembling a lower pipe and a chassis according to claim 5, wherein a first inclined surface is arranged on one side of the fixing part, which is close to the inner wall of the lower pipe, and a second inclined surface tangent to the first inclined surface is arranged on the lower side of the positioning ring.

7. The connecting structure for quickly disassembling and assembling a lower pipe and a chassis according to claim 1 or 5, wherein the fixing cylinder is composed of an upper cylinder body and a lower cylinder body, the diameter of the upper cylinder body is smaller than that of the lower cylinder body, the lower cylinder body is arranged in the chassis, the upper cylinder body is arranged between the interior of the lower pipe and the chassis, and the diameter of the upper cylinder body is matched with that of the lower pipe.

8. The connection structure for quickly disassembling and assembling a lower pipe and a chassis according to claim 7, wherein the disassembling and assembling button is provided with an inner cylinder body and a bottom cylinder body, the diameter of the bottom cylinder body is larger than that of the inner cylinder body, a first slope surface is arranged on the inner wall of the upper part of the inner cylinder body, the first slope surface is obliquely arranged towards the axis direction of the inner cylinder body, and the first slope surface is in sliding connection with the limiting part of the second limiting part.

9. The connection structure for quickly assembling and disassembling a lower pipe and a chassis according to claim 8, wherein a step is formed on the inner wall of the upper cylinder in an extending manner, and the assembling and disassembling spring is installed between the lower cylinder and the step.

10. An electric fan, characterized in that a connection structure for quick assembly and disassembly of a down tube and a chassis according to any one of claims 1 to 4, 6, 8, and 9 is used.