CN216691514U - Rotary connection structure and fan - Google Patents

Abstract

The embodiment of the utility model provides a rotary connecting structure, which comprises a first connecting piece and a second connecting piece, wherein the first connecting piece is provided with a rotary sleeve, the second connecting piece is provided with a rotary bulge, the rotary bulge is sleeved in the rotary sleeve, and the rotary bulge can rotate around a first central axis relative to the rotary sleeve; the rotating sleeve is provided with an installation opening and at least one first gap, the rotating protrusion can be installed into the rotating sleeve through the installation opening, and the first gap penetrates through the wall body of the rotating sleeve and extends to the installation opening. According to the rotary connecting structure provided by the embodiment of the utility model, in the process that the rotary protrusion is installed in the rotary sleeve through the installation opening, the rotary sleeve is easy to deform due to the first gap arranged on the rotary sleeve, so that the rotary protrusion can be conveniently installed on or detached from the rotary sleeve.

Description

Rotary connection structure and fan

Technical Field

The utility model relates to the technical field of household appliances, in particular to a rotary connecting structure and a fan.

Background

Home appliances mainly refer to various electric and electronic appliances used in homes and the like, and include fans, table lamps, and the like.

In the existing household appliance, the rotational connection of the two components is realized by a rotational connection structure, which is not easy to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rotary connecting structure and a fan aiming at the defects and shortcomings of the prior art.

The embodiment of the utility model provides a rotary connecting structure, which comprises a first connecting piece and a second connecting piece, wherein the first connecting piece is provided with a rotary sleeve, the second connecting piece is provided with a rotary bulge, the rotary bulge is sleeved in the rotary sleeve, and the rotary bulge can rotate around a first central axis relative to the rotary sleeve; the rotating sleeve is provided with an installation opening and at least one first gap, the rotating protrusion can be installed into the rotating sleeve through the installation opening, and the first gap penetrates through the wall body of the rotating sleeve and extends to the installation opening.

Preferably, a limiter is removably mounted to the rotating sleeve, the limiter surrounding the rotating sleeve to maintain the shape of the rotating sleeve.

Preferably, the limiting piece is an outer sleeve sleeved on the rotating sleeve.

Preferably, the outer sleeve is in threaded connection with the rotating sleeve;

or the outer sleeve is sleeved with the rotating sleeve in a sliding mode.

Preferably, the number of first gaps is at least 2.

Preferably, the first gaps are uniformly distributed on the rotating sleeve.

Preferably, the first connecting piece is rod-shaped, and the first central axis is parallel to the extending direction of the first connecting piece; and/or the second connecting piece is rod-shaped, and the first central axis is parallel to the extending direction of the second connecting piece.

Preferably, the rotating sleeve is capable of full rotational movement relative to the rotating boss.

Preferably, the rotating sleeve is a tight fit with the rotating boss.

Preferably, the rotating sleeve is fixed along the first central axis with respect to the rotating boss.

Preferably, the inner wall of the rotating sleeve is provided with a first annular part arranged around the first central axis, the rotating protrusion is provided with a second annular part which is matched with the first annular part so as to fix the rotating sleeve relative to the rotating protrusion along the first central axis, and the first gap extends to the first annular part; the first annular part is an annular bulge, the second annular part is an annular groove, or the first annular part is an annular groove and the second annular part is an annular bulge; when the rotary lug is fitted into the rotary sleeve, the inner cavity of the rotary sleeve is expanded to facilitate the assembly of the second annular portion with the first annular portion.

Preferably, the rotation connection structure further includes a limiting part, the inner wall of the rotation sleeve is provided with a first annular groove around the first central axis, the rotation protrusion is provided with a second annular groove around the first annular groove, the limiting part is located between the rotation sleeve and the rotation protrusion, and the limiting part extends to the first annular groove and the second annular groove.

Preferably, the first gap extends from an open end of the rotating sleeve to the other end.

Preferably, the first connecting piece is provided with a first abutting protrusion, the end of the rotating protrusion abuts against the first abutting protrusion, the second connecting piece is provided with a second abutting protrusion, and the end of the rotating sleeve abuts against the second abutting protrusion.

Preferably, the second connecting piece is equipped with the extension rod, the extension rod for with the coaxial solid of revolution of first the central axis, first connecting piece be equipped with the extension chamber that the extension rod matches, extend the chamber for with the coaxial gyration chamber of first central axis.

The embodiment of the utility model also provides a fan, which comprises a supporting part, a fan head and the rotary connecting structure, wherein the supporting part is connected with the second connecting piece, and the fan head is connected with the first connecting piece.

According to the rotary connecting structure provided by the embodiment of the utility model, in the process that the rotary protrusion is installed in the rotary sleeve through the installation opening, the rotary sleeve is easy to deform due to the first gap arranged on the rotary sleeve, so that the rotary protrusion can be conveniently installed on or detached from the rotary sleeve.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a rotary joint structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of another angular configuration of the pivotal connection shown in FIG. 1;

FIG. 3 is a schematic view of the pivotal connection shown in FIG. 1 with the restraint concealed;

FIG. 4 is a schematic view of a first link member of the pivotal connection shown in FIG. 1;

FIG. 5 is an enlarged view of the structure at A in the first connector shown in FIG. 4;

FIG. 6 is a schematic view of a restricting member of the pivotal connection shown in FIG. 1;

FIG. 7 is a schematic view showing a second link in the rotating link structure shown in FIG. 1;

FIG. 8 is a schematic structural diagram of a fan according to an embodiment of the utility model.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the present invention, the terms "mounted", "connected", "fixed", "provided", "damped sliding", "damped rotating" are to be understood in a broad sense, unless expressly stated or limited otherwise.

For example, a may be mounted on B by integrally connecting a and B, a may be fixedly mounted on B, A by detachably mounting B, A on B, A via an intermediate member and detachably mounting B, A by movably mounting B, A to contact B, a may be mounted on B, and so on. A is connected or connected with B, which can mean that A and B are integrally connected, A and B are fixedly connected, A is detachably connected with B, A and is connected with B, A through an intermediate piece connecting B, A in a detachable mode, A is placed on B and the like, and is movably connected with B, A and is in contact with B. A is arranged on B, can mean that A is integrally arranged on B, A is fixedly arranged on B, A is detachably arranged on B, A and is detachably arranged on B, A through an intermediate piece, the A is movably arranged on B, A and is in contact with B, and the A is placed on B and the like.

For another example, a being affixed to B may mean a being integrally connected to B, a being affixed to B, a being removably affixed B, A to B via an intermediary member.

A is hinged to B, and can be hinged to B through a shaft, and the A and the B only have one rotational degree of freedom; a and B are in spherical hinge joint, and three rotational degrees of freedom are formed between A and B.

A is provided at one end of B, and means that A is provided at the end of B or at a position close to the end of B.

Referring to fig. 1 to 7, an embodiment of the present invention provides a rotational connection structure 1, including a first connection member 100 and a second connection member 200, where the first connection member 100 is provided with a rotational sleeve 110, the second connection member 200 is provided with a rotational protrusion 210, the rotational protrusion 210 is sleeved in the rotational sleeve 110, and the rotational protrusion 210 is rotatable around a first central axis relative to the rotational sleeve 110; the rotating sleeve 110 is provided with a mounting opening 101 and at least one first gap 102, the rotating protrusion 210 can be mounted into the rotating sleeve 110 through the mounting opening 101, and the first gap 102 penetrates through the wall of the rotating sleeve 110 and extends to the mounting opening 101.

During the process of installing the rotating protrusion 210 into the rotating sleeve 110 through the installation opening 101, since the rotating sleeve 110 is provided with the first gap 102, the rotating sleeve 110 is easily deformed (for example, the inner cavity of the rotating sleeve 110 becomes larger, or the rotating sleeve 110 is deformed adaptively), thereby facilitating the installation or removal of the rotating protrusion 210 on or from the rotating sleeve 110.

For example, during the process of installing the rotating protrusion 210 into the rotating sleeve 110 through the installation opening 101, since the size of the rotating protrusion 210 is slightly larger than the size of the inner cavity of the rotating sleeve 110, the rotating protrusion 210 presses the rotating sleeve 110 to expand the first gap 102, and the rotating sleeve 110 is deformed. For another example, during the process of installing the rotating protrusion 210 into the rotating sleeve 110 through the installation opening 101, the rotating protrusion 210 is misaligned with the rotating sleeve 110, the rotating sleeve 110 is pressed by the rotating protrusion 210 to expand the first gap 102, and the rotating sleeve 110 is deformed.

In some implementations of the embodiment of the present invention, the inner cavity of the rotating sleeve 110 is a rotating cavity (e.g., a cylindrical cavity, a conical cavity, etc.), and the rotating protrusion 210 is a rotating body (e.g., a cylinder, a conical cavity, etc.) adapted to the inner wall of the rotating sleeve 110.

In some implementations of the embodiment of the present invention, the inner cavity of the rotating sleeve 110 is a rotating cavity (e.g., a cylindrical cavity, a conical cavity, etc.), or the rotating protrusion 210 is a protrusion structure contacting with the inner wall of the rotating sleeve 110, for example, the rotating protrusion 210 is a polygonal cylinder, a polygonal cone, a polygonal frustum, etc., in which the rotating protrusion 210 contacts with the rotating sleeve 110 in a point contact, a line contact, or a surface contact, and the contact between the rotating protrusion 210 and the rotating sleeve 110 does not hinder the rotating movement therebetween.

In some other implementations of the embodiment of the present invention, the rotating protrusion 210 is a rotating body (e.g., a cylinder, a cone, etc.), and the inner cavity of the rotating sleeve 110 is a cavity connected to the rotating protrusion 210, for example, the inner cavity of the rotating sleeve 110 may be a polygonal cylindrical cavity, a polygonal conical cavity, a polygonal frustum cavity, etc.

In some implementations of the embodiment of the present invention, the extending path of the first gap 102 may be any curved line such as a straight line, a broken line, an arc, a wavy line, etc., and exemplarily, the extending path of the first gap 102 is a straight line and is along the extending direction of the rotating sleeve 110.

In some implementations of embodiments of the present invention, referring to fig. 1 and 3, the further includes a limiter 120 removably mounted to the rotating sleeve 110, the limiter 120 surrounding the rotating sleeve 110 to maintain the shape of the rotating sleeve 110; the restricting member 120 serves to maintain the shape of the rotation sleeve 110 after the rotation projection 210 is fitted into the rotation sleeve 110.

Illustratively, the rotation connecting structure 1 including the limiting member 120 is installed by first sleeving the rotation protrusion 210 on the rotation sleeve 110, and then installing the limiting member 120 on the rotation sleeve 110. This has the advantage that the restricting member 120 is prevented from interfering with the mounting of the rotary projection 210 to the rotary sleeve 110.

In some implementations of embodiments of the present invention, the restraint 120 is a rope that is secured to the rotating sleeve 110.

In other implementations of embodiments of the present invention, the limiting member 120 is a rigid connecting member, and the rigid connecting member is provided with at least one fastening opening, and two sides of the fastening opening are connected by a fastening member.

In some implementations of the embodiment of the present invention, referring to fig. 1, 3, and 6, the limiting member 120 is an outer sleeve 120 sleeved on the rotating sleeve 110, the outer sleeve 120 is screwed to the rotating sleeve 110, and exemplarily, an outer wall of the rotating sleeve 110 is provided with an external thread, and an inner wall of the outer sleeve 120 is provided with an internal thread matching the external thread.

In other implementations of embodiments of the present invention, outer sleeve 120 is slidably received within rotating sleeve 110.

In some implementations of embodiments of the present invention, the number of the first gaps 102 is at least 2, which is advantageous in that it facilitates easier expansion of the inner cavity of the rotating sleeve 110 when the rotating protrusion 210 is mounted on the rotating sleeve 110. The first gaps 102 are uniformly distributed on the rotating sleeve 110, and the first gaps 102 are exemplarily uniformly distributed on the rotating sleeve 110 at equal angles or equal intervals.

In some implementations of embodiments of the present invention, the first connector 100 is rod-shaped, and the first central axis is parallel to the extending direction of the first connector 100; and/or, the second connector 200 has a rod shape, and the first central axis is parallel to the extending direction of the second connector 200.

In some implementations of embodiments of the present invention, the rotating sleeve 110 is rotatable about a full rotation relative to the rotating boss 210. This has the advantage of facilitating a full rotational movement of the electric body or base to which the swivel joint 1 is connected.

In some implementations of embodiments of the present invention, the rotational sleeve 110 is a tight fit with the rotational protrusion 210, which advantageously facilitates rotational damping between the rotational sleeve 110 and the rotational protrusion 210.

In some implementations of embodiments of the present invention, the rotating sleeve 110 is fixed relative to the rotating protrusion 210 along the first central axis, i.e., the rotating sleeve 110 is not slidable relative to the rotating protrusion 210 along the first central axis, which is advantageous in that the rotating protrusion 210 is not easily removed from the rotating sleeve 110.

In some implementations of embodiments of the present invention, referring to fig. 4 and 7, the inner wall of the rotating sleeve 110 is provided with a first annular portion 130 disposed about a first central axis, the rotating boss 210 is provided with a second annular portion 220, the second annular portion 220 cooperates with the first annular portion 130 to fix the rotating sleeve 110 relative to the rotating boss 210 along the first central axis, and the first gap 102 extends to the first annular portion 130. When the rotary lug 210 is fitted into the rotary sleeve 110, the inner cavity of the rotary sleeve 110 is expanded to facilitate the assembly of the second annular portion 220 with the first annular portion 130. The advantage of providing the first and second annular portions 130, 220 is that the rotating sleeve 110 is prevented from falling off the rotating boss 210 and the rotating joint 1 is facilitated to bear loads in the direction of the first central axis.

In some implementations of the embodiment of the present invention, the first annular portion 130 is an annular protrusion, the second annular portion 220 is an annular groove, when the rotating protrusion 210 is installed in the rotating sleeve 110, the rotating protrusion 210 presses the inner wall of the rotating sleeve 110 or the first annular portion 130, and the inner cavity of the rotating sleeve 110 is expanded due to the first gap 102, thereby facilitating the assembly of the second annular portion 220 with the first annular portion 130. In this implementation, the first annular portion 130 may be a full circumference annular protrusion or a partial annular protrusion.

In other implementations of the embodiment of the present invention, the first annular portion 130 is an annular groove, the second annular portion 220 is an annular protrusion, when the rotating protrusion 210 is installed in the rotating sleeve 110, the first annular portion 130 of the rotating protrusion 210 presses against the inner wall of the rotating sleeve 110, and due to the existence of the first gap 102, the inner cavity of the rotating sleeve 110 expands, thereby facilitating the assembly of the second annular portion 220 with the first annular portion 130. In this implementation, the second annular portion 220 may be a full circumference annular protrusion or a partial annular protrusion.

In some implementations of the embodiment of the present invention, the rotating connection structure 1 further includes a limiting member, a first annular groove disposed around the first central axis is disposed on an inner wall of the rotating sleeve 110, a second annular groove disposed with the first annular groove is disposed on the rotating protrusion 210, the limiting member is located between the rotating sleeve 110 and the rotating protrusion 210, and the limiting member extends to the first annular groove and the second annular groove. Illustratively, the stopper may be a ring or a ball.

In other implementations of embodiments of the present invention, the first gap 102 extends from the open end to the other end of the rotating sleeve 110.

In some implementations of the embodiment of the present invention, referring to fig. 2, 4, 5, and the like, the first connecting element 100 is provided with a first abutting protrusion 112, an end of the rotating protrusion 210 abuts against the first abutting protrusion 112, the second connecting element 200 is provided with a second abutting protrusion 212, and an end of the rotating sleeve 110 abuts against the second abutting protrusion 212. The advantage of providing the first abutting projection 112 and the second abutting projection 212 is that the load-bearing performance of the rotating joint structure 1 in the direction of the first central axis is further improved.

In some implementations of the embodiment of the present invention, referring to fig. 4 and 7, the second connecting element 200 is provided with an extension rod 213, the extension rod 213 is a revolving body coaxial with the first central axis, the first connecting element 100 is provided with an extension cavity 201 matched with the extension rod 213, and the extension cavity 201 is a revolving cavity coaxial with the first central axis. The rotational stability of the rotating connection structure 1 is further improved by the rotational fit of the extension rod 213 and the extension cavity 201.

Referring to fig. 8, the embodiment of the present invention further provides a fan, which includes a supporting portion 2, a fan head 3, and a rotating connection structure 1, where the supporting portion 2 is connected to the second connection member 200, and the fan head 3 is connected to the first connection member 100. The supporting portion 2 is connected to the second connecting member 200, and the supporting portion 2 and the second connecting member 200 are integrally connected, fixedly connected, detachably connected, connected via an intermediate member, detachably connected, movably connected, and the like.

The support 2 may be a clip-on support, a table support, a neck-hanging support, or the like.

The above embodiments of the present invention are only used for illustrating the technical solutions of the present invention and not for limiting, the above implementations of the embodiments of the present invention can be presented in any combination, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered by the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (16)

1. A rotary connecting structure is characterized by comprising a first connecting piece and a second connecting piece,

the first connecting piece is provided with a rotating sleeve, the second connecting piece is provided with a rotating bulge, the rotating bulge is sleeved in the rotating sleeve, and the rotating bulge can rotate around a first central axis relative to the rotating sleeve;

the rotating sleeve is provided with an installation opening and at least one first gap, the rotating protrusion can be installed into the rotating sleeve through the installation opening, and the first gap penetrates through the wall body of the rotating sleeve and extends to the installation opening.

2. The rotational connection of claim 1 further comprising a limiter removably mounted to the rotational sleeve, the limiter surrounding the rotational sleeve to maintain a shape of the rotational sleeve.

3. The rotational connection of claim 2 wherein the restraint is an outer sleeve that is sleeved over the rotational sleeve.

4. The rotary connection of claim 3, wherein the outer sleeve is threaded with the rotary sleeve;

or the outer sleeve is sleeved with the rotating sleeve in a sliding mode.

5. The rotating connecting structure according to claim 1, wherein the number of the first gaps is at least 2.

6. The rotating connection according to claim 5, wherein the first gaps are evenly distributed in the rotating sleeve.

7. The rotating connecting structure according to claim 1, wherein the first connecting member has a rod shape, and the first central axis is parallel to an extending direction of the first connecting member; and/or the second connecting piece is rod-shaped, and the first central axis is parallel to the extending direction of the second connecting piece.

8. The rotatable connection of claim 1, wherein the rotatable sleeve is rotatable about a full rotation relative to the rotatable projection.

9. The rotatable connection of claim 1, wherein the rotatable sleeve is a tight fit with the rotatable protrusion.

10. The rotating connection according to any one of claims 1 to 9, wherein the rotating sleeve is fixed relative to the rotating boss along the first central axis.

11. The rotary connection structure as claimed in claim 10, wherein the inner wall of the rotary sleeve is provided with a first annular portion disposed about the first central axis, the rotary lobe is provided with a second annular portion that cooperates with the first annular portion to fix the rotary sleeve relative to the rotary lobe along the first central axis, and the first gap extends to the first annular portion;

the first annular part is an annular bulge, the second annular part is an annular groove, or the first annular part is an annular groove and the second annular part is an annular bulge;

when the rotary lug is fitted into the rotary sleeve, the inner cavity of the rotary sleeve is expanded to facilitate the assembly of the second annular portion with the first annular portion.

12. The rotating connecting structure according to claim 10, further comprising a limiting member, wherein the inner wall of the rotating sleeve is provided with a first annular groove disposed around the first central axis, the rotating protrusion is provided with a second annular groove disposed around the first annular groove, the limiting member is located between the rotating sleeve and the rotating protrusion, and the limiting member extends to the first annular groove and the second annular groove.

13. The rotary connection structure as claimed in any one of claims 1 to 9, wherein the first gap extends from the open end to the other end of the rotary sleeve.

14. The rotating connecting structure according to any one of claims 1 to 9, wherein the first connecting member is provided with a first abutting protrusion, an end portion of the rotating protrusion abuts against the first abutting protrusion, the second connecting member is provided with a second abutting protrusion, and an end portion of the rotating sleeve abuts against the second abutting protrusion.

15. The rotatable connection structure according to any one of claims 1 to 9, wherein the second connecting member is provided with an extension rod, the extension rod is a rotatable body coaxial with the first central axis, the first connecting member is provided with an extension cavity matched with the extension rod, and the extension cavity is a rotatable cavity coaxial with the first central axis.

16. A fan comprising a support portion, a fan head, and the rotary joint structure of any one of claims 1 to 9, wherein the support portion is connected to the second joint member, and the fan head is connected to the first joint member.

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