CN111022367B

CN111022367B - Connection structure and device with same

Info

Publication number: CN111022367B
Application number: CN201911346071.6A
Authority: CN
Inventors: 余丛; 黄少杰; 陈宇强; 王勇; 刘建优
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2024-08-13
Anticipated expiration: 2039-12-24
Also published as: CN111022367A

Abstract

The invention provides a connection structure and a device with the connection structure, wherein the connection structure comprises: the first component is provided with a mounting cavity, and a first axial limiting part is arranged in the mounting cavity; the second component is provided with an extending part, and a limiting cavity and a second axial limiting part are arranged on the extending part; the second axial limiting part is provided with an axial limiting state for limiting the extension part to deviate from the mounting cavity and a separating state separated from the first axial limiting part; the circumferential limiting structure is arranged in the mounting cavity, and is provided with a separation state separated from the limiting cavity and a circumferential limiting state inserted in the limiting cavity; when the circumferential limiting structure is in a circumferential limiting state, the second member is limited to rotate relative to the first member; the operating piece is arranged on the first component and is suitable for enabling the circumferential limiting structure to be in a separation state under the action of external force; and a biasing member for applying a biasing force to the circumferential spacing structure for movement into the spacing cavity. The invention has the advantages of simple disassembly and assembly operation and stable installation.

Description

Connection structure and device with same

Technical Field

The invention relates to the technical field of household appliances, in particular to a connecting structure and a device with the same.

Background

The electric fan fuselage in the present market adopts two pipe fittings to form through threaded connection more, does not adopt other structures to fix after two pipe fittings threaded connection, will make two pipe fittings receive external factors such as vibrations easily like this and cause the screw loosening, reduces the life of product, for making pipe fitting connection's more firm, still discloses fixing through the screw after two pipe fittings threaded connection, but the screw fixation can make the dismouting complicated again, production efficiency is low.

Disclosure of Invention

Therefore, the invention aims to overcome the defects of the prior art that two components are fixed by screw connection and the disassembly is complex, thereby providing a connection structure convenient for disassembly and a device with the connection structure.

The present invention provides a connection structure, comprising:

the first component is provided with a mounting cavity, and at least one first axial limiting part is arranged in the mounting cavity;

the second component is provided with an extending part which is suitable for being inserted into the mounting cavity, and the extending part is provided with a limiting cavity and at least one second axial limiting part; the second axial limiting part is provided with an axial limiting state which is matched with the first axial limiting part to limit the extending part from being separated from the mounting cavity and a separating state which is separated from the first axial limiting part;

The circumferential limiting structure is arranged in the mounting cavity, is in a separation state separated from the limiting cavity, and is inserted into the limiting cavity when the second axial limiting part is in the axial limiting state; when the circumferential limiting structure is in the circumferential limiting state, the second member is limited to rotate relative to the first member;

The operating piece is arranged on the first component and is suitable for enabling the circumferential limiting structure to be in the separation state under the action of external force;

And the biasing member is arranged in the mounting cavity, one end of the biasing member is abutted against the first member, and the other end of the biasing member is abutted against the circumferential limiting structure and applies a biasing force to the circumferential limiting structure, wherein the biasing force moves into the limiting cavity.

The first axial limiting part comprises a first limiting rib, a second limiting rib and a connecting rib, and the first limiting rib and the second limiting rib extend along the axial direction of the first component respectively; the connecting ribs are connected with the end parts of the second limiting ribs and the first limiting ribs, the first limiting ribs are divided into a main body part and a blocking part, and the blocking part and the connecting ribs jointly form a clamping groove;

the second axial limiting part comprises a yielding groove, a containing groove and a blocking rib, and the yielding groove is suitable for the first axial limiting part to slide in; the accommodating groove is communicated with the yielding groove and is suitable for accommodating the first axial limiting part when the second axial limiting part is in the axial limiting state; the clamping ribs extend from the groove walls of the accommodating grooves towards the yielding grooves, are accommodated in the clamping grooves and are propped against the blocking portions when the second axial limiting portions are in the axial limiting state, and are separated from the blocking portions when the second axial limiting portions are in the separating state.

The difference between the length of the limiting cavity in the circumferential direction of the second member and the length of the circumferential limiting structure in the circumferential direction of the second member is not greater than the length of the clamping rib in the circumferential direction of the first member.

The moving direction of the operating piece is mutually perpendicular to the moving direction of the circumferential limiting structure.

The circumferential limiting structure comprises a first pushing part provided with a first pushing surface and at least one limiting block; when the circumferential limiting structure is in the circumferential limiting state, the limiting block is inserted into the limiting cavity; the first pushing part extends from the limiting block and forms an angle with the limiting block;

the operation piece comprises a second pushing part provided with a second pushing surface, the second pushing surface is suitable for pushing the first pushing surface under the action of external force, the limiting block is driven to deviate from the limiting cavity, and the circumferential limiting structure is driven to squeeze the biasing piece.

The limiting cavity comprises at least one limiting groove extending along the axial direction of the second component, and the limiting groove is suitable for accommodating the corresponding limiting block.

The circumferential limiting structure comprises two limiting blocks, and the first pushing part is arranged between the two limiting blocks and is connected with the two limiting blocks; the first pushing part and the two limiting blocks jointly form a groove suitable for accommodating the second pushing part.

The first pushing part is a first side on one side, which is abutted to the operating part, and a second side on the side opposite to the first side, the circumferential limiting structure further comprises a guide block, the guide block extends from the second side to the direction away from the first side, and one end, which is abutted to the circumferential limiting structure, of the biasing part is sleeved outside the guide block.

At least one of the first pushing surface and the second pushing surface is a guiding inclined surface.

A guide arm is arranged in the mounting cavity, a guide cavity suitable for accommodating the limiting block is formed on the guide arm, and a locking cavity is formed on the cavity wall of the guide cavity;

The limiting block is provided with a locking block, and the locking block is inserted into the locking cavity when the circumferential limiting structure is in the circumferential limiting state and is separated from the locking cavity when the circumferential limiting structure is in the separating state.

The operating piece comprises a pressing part connected with the second pushing part, and at least part of the pressing part extends out of the first member along the radial direction of the first member.

The second pushing part comprises two pushing ribs which are oppositely arranged, and a connecting plate for connecting the two pushing ribs, and the two pushing ribs are respectively provided with a second pushing surface.

The first component is provided with a clamping groove; the second support pushing part is far away from the one end of pressing part stretches out the joint groove, just the connecting plate is kept away from the one end of pressing part is equipped with the extrusion groove, at least one support pushing rib keep away from the one end of pressing part to keep away from another support pushing rib's direction extends the fixture block, the fixture block is suitable for to keeping away from the direction of pressing part wear out the joint groove back with the cell wall in joint groove offsets.

The first component comprises a first main body and a first joint fixedly connected with the first main body; the mounting cavity is formed in the first joint.

The second member comprises a second main body and a second joint arranged in the second main body, and the part of the second joint extending out of the first main body is the extending part.

The biasing member is a spring.

The invention also provides a device with the connecting structure, which comprises the connecting structure.

The device with the connecting structure is an electric fan.

The technical scheme of the invention has the following effects:

1. the connection structure provided by the invention comprises: the first component is provided with an installation cavity, and a first axial limiting part is arranged in the installation cavity; the second component is provided with an extending part which is suitable for being inserted into the mounting cavity, and the extending part is provided with a limiting cavity and a second axial limiting part; the second axial limiting part is provided with an axial limiting state which is matched with the first axial limiting part to limit the extending part from being separated from the mounting cavity and a separating state which is separated from the first axial limiting part; the circumferential limiting structure is arranged in the mounting cavity, is in a separation state separated from the limiting cavity, and is inserted into the limiting cavity when the second axial limiting part is in the axial limiting state; when the circumferential limiting structure is in the circumferential limiting state, the second member is limited to rotate relative to the first member; the operating piece is arranged on the first component and is suitable for enabling the circumferential limiting structure to be in the separation state under the action of external force; and the biasing member is arranged in the mounting cavity, one end of the biasing member is abutted against the first member, and the other end of the biasing member is abutted against the circumferential limiting structure and applies a biasing force to the circumferential limiting structure, wherein the biasing force moves into the limiting cavity. When the installation is carried out, the protruding part of the second component is aligned with the installation cavity of the first component, the protruding part is contacted with the circumferential limiting structure in the process of installing the protruding part into the installation cavity, the circumferential limiting structure presses the biasing piece, the biasing piece generates a biasing force opposite to the movement direction of the circumferential limiting structure, then the second component rotates relative to the first component, the second axial limiting part is matched with the second axial limiting part to limit the second component to move axially relative to the first component, and the protruding part is limited to be separated from the installation cavity in the axial direction, at the moment, the circumferential limiting structure is aligned with the limiting cavity due to the fact that the second component rotates relative to the first component and is inserted into the limiting cavity under the biasing force of the biasing piece, circumferential limiting is carried out between the second component and the first component, namely the second component is limited to rotate relative to the first component, and therefore the fixed installation between the second component and the first component is completed; when the second component is required to be detached from the first component, only external force is required to be applied to the operating piece, so that the circumferential limiting structure is in a separation state, the second component can rotate relative to the first component, the second axial limiting part is further separated from the first axial limiting part, and then the extending part is taken out from the mounting cavity, so that the detachment between the second component and the first component is completed. According to the invention, the second member and the first member can be mounted by inserting the extension part of the second member into the mounting cavity of the first member and then performing rotation operation, and the second member and the first member can be dismounted by only applying external force to the operation part and rotating the second member relative to the first member and then taking the extension part out of the mounting cavity.

2. The first axial limiting part comprises a first limiting rib, a second limiting rib and a connecting rib, wherein the first limiting rib and the second limiting rib extend along the axial direction of the first member respectively; the connecting ribs are connected with the end parts of the second limiting ribs and the first limiting ribs, the first limiting ribs are divided into a main body part and a blocking part, and the blocking part and the connecting ribs jointly form a clamping groove; the second axial limiting part comprises a yielding groove, a containing groove and a blocking rib, and the yielding groove is suitable for the first axial limiting part to slide in; the accommodating groove is communicated with the yielding groove and is suitable for accommodating the first axial limiting part when the second axial limiting part is in the axial limiting state; the clamping ribs extend from the groove walls of the accommodating grooves towards the yielding grooves, are accommodated in the clamping grooves and are propped against the blocking portions when the second axial limiting portions are in the axial limiting state, and are separated from the blocking portions when the second axial limiting portions are in the separating state. Therefore, the clamping rib can be clamped in the clamping groove only by inserting the extending part into the mounting groove and rotating the second component relative to the first component when the clamping rib reaches the notch of the clamping groove, so that the axial movement of the second component relative to the first component is limited; when the second member is required to be disassembled, the second member is required to be reversely rotated, so that the clamping ribs are separated from the clamping grooves, and the extending part is taken out of the mounting cavity. The first axial limiting part and the second axial limiting part in the structure form have the advantages of simple structure, easy realization and firm connection.

3. According to the connecting structure provided by the invention, one side of the first pushing part, which is abutted against the operating part, is a first side, the side opposite to the first side is a second side, the circumferential limiting structure further comprises the guide block, the guide block extends from the second side to the direction away from the first side, and one end of the biasing part, which is abutted against the circumferential limiting structure, is sleeved outside the guide block. The arrangement of the guide block can guide the biasing member, so that the direction of the biasing force is ensured, and the biasing member can be effectively prevented from being separated from the circumferential limiting structure.

4. In the connecting structure provided by the invention, at least one of the first pushing surface and the second pushing surface is a guiding inclined surface. Thus, the relative movement between the second pushing surface and the first pushing surface is smoother.

5. According to the connecting structure provided by the invention, the guide arm is arranged in the mounting cavity, the guide arm is provided with the guide cavity which is suitable for accommodating the limiting block, and the cavity wall of the guide cavity is provided with the locking cavity; the limiting block is provided with a locking block, and the locking block is inserted into the locking cavity when the circumferential limiting structure is in the circumferential limiting state and is separated from the locking cavity when the circumferential limiting structure is in the separating state. Through setting up locking piece and locking chamber, can lock the circumference limit state of circumference limit structure, make the stopper be difficult for deviating from in the limit chamber to restrict the second component more effectively and rotate for first component.

6. According to the connecting structure provided by the invention, the first component is provided with the clamping groove; the second support pushing part is far away from the one end of pressing part stretches out the joint groove, just the connecting plate is kept away from the one end of pressing part is equipped with the extrusion groove, at least one support pushing rib keep away from the one end of pressing part to keep away from another support pushing rib's direction extends the fixture block, the fixture block is suitable for to keeping away from the direction of pressing part wear out the joint groove back with the cell wall in joint groove offsets. Therefore, the clamping block can be prevented from being separated from the clamping groove, and the operating piece can be further effectively prevented from being separated from the first component.

7. The second component comprises a second main body and a second joint arranged in the second main body, wherein the part of the second joint extending out of the first main body is the extending part. The extension part is arranged on the second connector, so that the extension part is arranged in the mounting cavity, the outer diameter of the extension part is only smaller than that of the first component, the outer diameter of the second main body is equal to that of the first component, and the whole appearance of the second component and the first component after being connected is smoother and more attractive.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view in partial longitudinal section of a connection structure provided in a first embodiment of the present invention;

fig. 2 is a perspective view of a first body of the connection structure shown in fig. 1;

FIG. 3 is a schematic perspective view of a second body of the connection structure shown in FIG. 1;

FIG. 4 is a partial perspective view of the first joint of the connection structure shown in FIG. 1;

FIG. 5 is another angular perspective view of the first joint of the connection structure of FIG. 1;

FIG. 6 is a schematic perspective view of a second joint of the connection structure shown in FIG. 1;

FIG. 7 is a perspective view of a circumferential spacing structure of the connection structure shown in FIG. 1;

FIG. 8 is another angular perspective view of the circumferential spacing structure of the connection structure of FIG. 1;

Fig. 9 is a perspective view of the operating member of the connecting structure shown in fig. 1

FIG. 10 is a schematic perspective view of another angle of the operating member of the connecting structure shown in FIG. 1

FIG. 11 is a schematic cross-sectional view of the connection structure shown in FIG. 1;

reference numerals illustrate:

1-first main part, 2-first joint, 21-installation cavity, 22-joint groove, 23-guide arm, 24-guide cavity, 25-locking cavity, 3-first axial limit portion, 311-main part, 312-blocking portion, 32-second spacing muscle, 33-connecting muscle, 34-joint groove, 4-second main part, 5-second joint, 51-extension portion, 52-spacing groove, 61-groove, 62-accommodation groove, 63-blocking muscle, 7-circumference limit structure, 71-first pushing portion, 711-first pushing surface, 72-stopper, 73-groove, 74-guide block, 75-locking block, 8-operating member, 81-pushing muscle, 811-second pushing surface, 812-fixture block, 82-pressing portion, 83-connecting plate, 831-extrusion groove, 9-biasing member.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1 to 11, the present embodiment provides a connecting structure including a first member, a second member, a circumferential limit structure 7, an operating member 8, and a biasing member 9.

The first member comprises a first body 1 and a first joint 2 fixedly connected with the first body 1. The first joint 2 is provided with a mounting cavity 21, and two first axial limiting parts 3 are arranged in the mounting cavity 21. In the present embodiment, the first joint 2 is detachably connected to the first body 1 by a screw.

The second member comprises a second body 4 and a second joint 5 provided in the second body 4. The second joint 5 is provided with an extending part 51 which is suitable for being inserted into the mounting cavity 21, and the extending part 51 is provided with a limiting cavity and two second axial limiting parts; the second axial stopper has an axial stopper state in which it cooperates with the first axial stopper 3 to restrict the protrusion 51 from being removed from the mounting chamber 21, and a separated state in which it is separated from the first axial stopper 3. In the present embodiment, the second joint 5 is detachably connected to the second body 4 by a screw.

The circumferential limit structure 7 is arranged in the mounting cavity 21, and has a separation state separated from the limit cavity and a circumferential limit state inserted in the limit cavity when the second axial limit part is in an axial limit state; when the circumferential limiting structure 7 is in the circumferential limiting state, the second member is limited to rotate relative to the first member.

The operating member 8 is arranged on the first component and is adapted to bring the circumferential limit structure 7 into a disengaged state under the influence of an external force.

The biasing member 9 is disposed within the mounting cavity 21 and has one end abutting the first member and the other end abutting the circumferential spacing structure 7 and applying a biasing force to the circumferential spacing structure 7 that moves into the spacing cavity.

When the installation is carried out, the protruding part 51 of the second component is aligned with the installation cavity 21 of the first component, the protruding part 51 is contacted with the circumferential limiting structure 7 in the process of installing the protruding part 51 into the installation cavity 21, the circumferential limiting structure 7 presses the biasing piece 9, the biasing piece 9 generates a biasing force opposite to the movement direction of the circumferential limiting structure 7, then the second component rotates relative to the first component, the second axial limiting part is matched with the second axial limiting part, the second component is limited to move axially relative to the first component, and the protruding part 51 is limited to be axially separated from the installation cavity 21, at the moment, the circumferential limiting structure 7 is aligned with the limiting cavity due to the fact that the second component rotates relative to the first component, and is inserted into the limiting cavity under the biasing force of the biasing piece 9, so that circumferential limiting is carried out between the second component and the first component, namely the second component is limited to rotate relative to the first component, and the fixed installation between the second component and the first component is completed; when the second member needs to be detached from the first member, the second member can be rotated relative to the first member by applying an external force to the operating member 8 to disengage the circumferential limit structure 7, so as to separate the second axial limit portion from the first axial limit portion 3, and then the protruding portion 51 is removed from the mounting cavity 21, thereby completing the detachment between the second member and the first member. According to the invention, the second member and the first member can be mounted by inserting the protruding part 51 of the second member into the mounting cavity 21 of the first member and then performing a rotating operation, and the second member and the first member can be dismounted by only applying an external force to the operating part and rotating the second member relative to the first member and then taking the protruding part 51 out of the mounting cavity 21.

In addition, by providing the protruding portion 51 on the second joint 5 and attaching the protruding portion 51 to the mounting cavity 21, only the outer diameter of the protruding portion 51 can be made smaller than the outer diameter of the first member, and the outer diameter of the second body 4 can be made equal to the outer diameter of the first member, so that the overall appearance after the second member and the first member are connected is smoother and more attractive.

As an alternative embodiment, the first joint 2 and the first body 1 may be welded or integrally formed, and the second joint 5 and the second body 4 may be welded or integrally formed.

As an alternative embodiment, the first axial limit portion 3 and the second axial limit portion may have only one.

In this embodiment, the first body 1 is a lower tube of the electric fan body, the second body 4 is a lower tube of the electric fan body, and the electric fan body is formed by connecting the lower tube and the upper tube.

The specific structural forms of the first axial limiting portion 3 and the second axial limiting portion are not limited, and in this embodiment, the first axial limiting portion 3 includes a first limiting rib, a second limiting rib 32 and a connecting rib 33, and the first limiting rib and the second limiting rib 32 extend along the axial direction of the first member respectively; the connecting rib 33 connects the end part of the second limiting rib 32 with the first limiting rib, separates the first limiting rib into a main body part 311 and a blocking part 312, and the blocking part 312 and the connecting rib 33 jointly form a clamping groove 34; the second axial limiting part comprises a yielding groove 61, a containing groove 62 and a blocking rib 63, and the yielding groove 61 is suitable for the first axial limiting part 3 to slide in; the accommodating groove 62 is communicated with the giving way groove 61 and is suitable for accommodating the first axial limiting part 3 when the second axial limiting part is in an axial limiting state; the rib extends from the groove wall of the accommodating groove 62 toward the yielding groove 61, is accommodated in the engaging groove 34 and abuts against the blocking portion 312 when the second axial limiting portion is in the axial limiting state, and is separated from the blocking portion 312 when the second axial limiting portion is in the separating state. Thus, the protruding part 51 is only required to be inserted into the mounting groove, and when the clamping rib reaches the notch of the clamping groove 34, the second component rotates relative to the first component, so that the clamping rib can be clamped in the clamping groove 34, and the axial movement of the second component relative to the first component is limited; when the second member is required to be detached, the second member is rotated in the opposite direction to release the engaging rib from the engaging groove 34, and the protruding portion 51 is taken out of the mounting chamber 21. The first axial limiting part 3 and the second axial limiting part in the structural form have the advantages of simple structure, easy realization and firm connection.

As an alternative embodiment, the first axial stop may not include the second stop rib 32.

In order to more effectively prevent the clamping ribs from being separated from the clamping grooves 34 due to the rotation of the second member relative to the first member when the circumferential limiting structure 7 is in the circumferential limiting state, the difference between the length of the limiting cavity in the circumferential direction of the second member and the length of the circumferential limiting structure 7 in the circumferential direction of the second member is not greater than the length of the clamping ribs in the circumferential direction of the first member.

In the present embodiment, the movement direction of the operating member 8 is perpendicular to the movement direction of the circumferential limit structure.

The specific structural forms of the circumferential limit structure 7 and the operation member 8 may be various, in this embodiment, the circumferential limit structure 7 includes a first pushing portion 71 provided with a first pushing surface 711, and two limiting blocks 72, and the first pushing portion 71 is disposed between the two limiting blocks 72 and connects the two limiting blocks 72; the first pushing portion 71 and the two limiting blocks 72 together form a groove 73 adapted to accommodate the second pushing portion. When the circumferential limiting structure 7 is in a circumferential limiting state, the limiting block 72 is inserted into the limiting cavity; the first pushing portion 71 extends from the limiting block 72 and forms an angle with the limiting block 72; the operating member 8 includes a second pushing portion provided with a second pushing surface 811, and the second pushing surface 811 is adapted to push the first pushing surface 711 under the action of external force, so as to drive the stopper 72 to be separated from the limiting cavity, and drive the circumferential limiting structure 7 to press the biasing member 9.

Correspondingly, the limiting cavity comprises two limiting grooves 52 extending in the axial direction of the second member, each limiting groove 52 being adapted to receive a corresponding limiting block 72.

As an alternative embodiment, the circumferential limit structure 7 may also include only one limit block 72, and the limit cavity may also include only one limit groove 52.

The side of the first pushing portion 71, which is abutted against the operating member 8, is a first side, the side opposite to the first side is a second side, the circumferential limiting structure 7 further includes a guide block 74, the guide block 74 extends from the second side to a direction away from the first side, and one end of the biasing member 9, which is abutted against the circumferential limiting structure 7, is sleeved outside the guide block 74. The guide block 74 is provided to guide the biasing member 9 so as to ensure the direction of the biasing force, and to effectively prevent the biasing member 9 from being separated from the circumferential spacing structure 7. As an alternative embodiment, the biasing member 9 may be directly abutted against the second side of the first abutment portion 71 without providing the guide block 74.

The specific structure of the first pushing surface 711 is not limited, and in this embodiment, the first pushing surface 711 and the second pushing surface 811 are both guiding slopes. This makes the relative movement between the second abutment surface 811 and the first abutment surface 711 smoother. The specific form of the guide slope is not limited, and the guide slope in this embodiment is an inclined plane. As an alternative embodiment, the inclined plane may be replaced by a curved plane. As an alternative embodiment, only the first contact surface 711 or the second contact surface 811 may be a guide slope.

In this embodiment, the guide arm 23 is disposed in the mounting cavity, the guide arm 23 is formed with a guide cavity 24 adapted to receive the stopper 72, and the guide cavity 24 is formed with a locking cavity 25 on a cavity wall. The stopper 72 is provided with a locking block 75, and the locking block 75 is inserted into the locking cavity 25 when the circumferential limit structure is in a circumferential limit state and is separated from the locking cavity 25 when the circumferential limit structure is in a separation state. By providing the locking block 75 and the locking cavity 25, the circumferential limit state of the circumferential limit structure can be locked, so that the limit block is not easy to be separated from the limit cavity, and the second member is more effectively limited to rotate relative to the first member.

The specific structural form of the locking cavity 25 is not limited, and the locking cavity 25 in this embodiment is a locking through hole. As an alternative embodiment, the locking cavity 25 may also be a locking groove.

In the present embodiment, the operation piece 8 includes a pressing portion 82 further including a connection with the second pushing portion, and at least part of the structure of the pressing portion 82 protrudes from the first member in the radial direction of the first member.

The specific structure of the second pushing portion may be various, in this embodiment, the second pushing portion includes two pushing ribs 81 disposed opposite to each other, and a connecting plate 83 connected to the two pushing ribs 81, and the two pushing ribs 81 are provided with a second pushing surface 811.

In this embodiment, the first member is provided with a clamping groove 22; the second pushing portion extends out of the clamping groove 22 from one end of the second pushing portion away from the pressing portion 82, an extrusion groove 831 is formed in one end of the connecting plate 83 away from the pressing portion 82, a clamping block 812 extends out of one end of the at least one pushing rib 81 away from the pressing portion 82 in a direction away from the other pushing rib 81, and the clamping block 812 is suitable for being propped against the groove wall of the clamping groove 22 after penetrating out of the clamping groove 22 in a direction away from the pressing portion 82. This prevents the latch 812 from being disengaged from the latch slot 22, thereby effectively preventing the operating member 8 from being disengaged from the first member.

The specific structural form of the biasing member 9 is not limited, and the biasing member 9 in this embodiment is a spring.

The embodiment also provides an electric fan, which comprises the connecting structure. As an alternative embodiment, the electric fan may be replaced by another device having a connection structure.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims

1. A connection structure, characterized by comprising:

The first component is provided with a mounting cavity (21), and at least one first axial limiting part (3) is arranged in the mounting cavity (21);

A second member having an extension (51) adapted to be inserted into the mounting cavity (21), the extension (51) being provided with a limiting cavity and at least one second axial limiting portion; the second axial limiting part is provided with an axial limiting state which is matched with the first axial limiting part (3) to limit the extending part (51) from being separated from the mounting cavity (21) and a separating state which is separated from the first axial limiting part (3);

The circumferential limiting structure (7) is arranged in the mounting cavity (21) and is in a separation state separated from the limiting cavity and a circumferential limiting state inserted in the limiting cavity when the second axial limiting part is in the axial limiting state; the second component is limited to rotate relative to the first component when the circumferential limiting structure (7) is in the circumferential limiting state;

an operating member (8) arranged on the first component and adapted to bring the circumferential limit structure (7) into the disengaged state under the action of an external force;

And a biasing member (9) disposed in the mounting cavity (21) and having one end abutting the first member and the other end abutting the circumferential limit structure (7) and applying a biasing force to the circumferential limit structure (7) for movement into the limit cavity.

2. The connection according to claim 1, wherein,

The first axial limiting part (3) comprises a first limiting rib, a second limiting rib (32) and a connecting rib (33), and the first limiting rib and the second limiting rib (32) extend along the axial direction of the first component respectively; the connecting ribs (33) are used for connecting the end parts of the second limiting ribs (32) and the first limiting ribs and separating the first limiting ribs into main body parts (311) and blocking parts (312), and the blocking parts (312) and the connecting ribs (33) form clamping grooves (34) together;

the second axial limiting part comprises a yielding groove (61), a containing groove (62) and a blocking rib (63), and the yielding groove (61) is suitable for the first axial limiting part (3) to slide in; the accommodating groove (62) is communicated with the yielding groove (61) and is suitable for accommodating the first axial limiting part (3) when the second axial limiting part is in the axial limiting state; the blocking rib (63) extends from the groove wall of the accommodating groove (62) towards the yielding groove (61), is accommodated in the clamping groove (34) and abuts against the blocking part (312) when the second axial limiting part is in the axial limiting state, and is separated from the blocking part (312) when the second axial limiting part is in the separating state.

3. The connecting structure according to claim 2, characterized in that the difference between the length of the limiting cavity in the circumferential direction of the second member and the length of the circumferential limiting structure (7) in the circumferential direction of the second member is not greater than the length of the rib (63) in the circumferential direction of the first member.

4. A connection according to any one of claims 1-3, characterized in that the direction of movement of the operating member (8) and the direction of movement of the circumferential limit structure are mutually perpendicular.

5. A connection according to any one of claims 1 to 3, wherein,

The circumferential limiting structure (7) comprises a first pushing part (71) provided with a first pushing surface (711), and at least one limiting block (72); when the circumferential limiting structure (7) is in the circumferential limiting state, the limiting block (72) is inserted into the limiting cavity; the first pushing part (71) extends from the limiting block (72) and forms an angle with the limiting block (72);

The operating piece (8) comprises a second pushing part provided with a second pushing surface (811), the second pushing surface (811) is suitable for pushing the first pushing surface (711) under the action of external force, the limiting block (72) is driven to be separated from the limiting cavity, and the circumferential limiting structure (7) is driven to squeeze the biasing piece (9).

6. The connection according to claim 5, characterized in that said limiting cavity comprises at least one limiting groove (52) extending in the axial direction of said second member, said limiting groove (52) being adapted to receive a corresponding limiting block (72).

7. The connection structure according to claim 5, characterized in that the circumferential limit structure (7) comprises two limit blocks (72), the first abutment portion (71) being provided between the two limit blocks (72) and connecting the two limit blocks (72); the first pushing part (71) and the two limiting blocks (72) form a groove (73) suitable for accommodating the second pushing part.

8. The connecting structure according to claim 5, wherein a side of the first pushing portion (71) abutting against the operating member (8) is a first side, a side opposite to the first side is a second side, the circumferential limiting structure (7) further comprises a guide block (74), the guide block (74) extends from the second side in a direction away from the first side, and an end of the biasing member (9) abutting against the circumferential limiting structure (7) is sleeved outside the guide block (74).

9. The connection structure according to claim 5, wherein at least one of the first abutment surface (711) and the second abutment surface (811) is a guide slope.

10. The connection structure according to claim 5, wherein,

A guide arm (23) is arranged in the mounting cavity, a guide cavity (24) suitable for accommodating the limiting block (72) is formed on the guide arm (23), and a locking cavity (25) is formed on the cavity wall of the guide cavity (24);

the limiting block (72) is provided with a locking block (75), and the locking block (75) is inserted into the locking cavity (25) when the circumferential limiting structure is in the circumferential limiting state and is separated from the locking cavity (25) when the circumferential limiting structure is in the separating state.

11. The connecting structure according to claim 5, characterized in that the operating member (8) further includes a pressing portion (82) connected to the second pushing portion, at least part of the pressing portion (82) being structured to protrude from the first member in a radial direction of the first member.

12. The connecting structure according to claim 11, wherein the second pushing portion includes two pushing ribs (81) disposed opposite to each other, and a connecting plate (83) connecting the two pushing ribs (81), and the second pushing surfaces (811) are disposed on the two pushing ribs (81).

13. The connecting structure according to claim 12, characterized in that the first member is provided with a clamping groove (22); the second is supported pushing away from the one end of pressing part (82) stretches out joint groove (22), just connecting plate (83) are kept away from the one end of pressing part (82) is equipped with extrusion groove (831), at least one support pushing away from the one end of pressing part (82) to keeping away from another support pushing away from the direction of pushing away from muscle (81) and extend fixture block (812), fixture block (812) are suitable for to be kept away from in the direction of pressing part (82) wear out behind joint groove (22) with the cell wall of joint groove (22) offsets.

14. A connection according to any one of claims 1-3, characterized in that the first member comprises a first body (1), and a first joint (2) fixedly connected to the first body (1); the mounting cavity (21) is formed in the first joint (2).

15. The connection structure according to claim 14, characterized in that the second member comprises a second body (4), and a second joint (5) provided in the second body (4), the portion of the second joint (5) protruding from the first body (1) being the protruding portion (51).

16. A connection according to any one of claims 1-3, characterized in that the biasing member (9) is a spring.

17. A device having a connection structure, characterized by comprising a connection structure according to any one of claims 1-16.

18. The device with attachment structure of claim 17, wherein the device with attachment structure is an electric fan.